Precise pressure adjusting device of single-column hydraulic press

Abstract

The utility model relates to the technical field of single-column hydraulic presses, and discloses a single-column hydraulic press precision pressure adjusting device which comprises a main body frame, a hydraulic assembly, a pressure adjusting assembly and an auxiliary mechanism, the auxiliary mechanism comprises installation plates symmetrically installed on one side of the interior of the main body frame, and two-way threaded rods are rotatably installed in the installation plates; threaded connecting blocks are symmetrically installed on the outer side of the two-way threaded rod, and one side of each threaded connecting block is fixedly connected with a sealing block. Whether hydraulic oil leaks or not is detected through the sonic sensor, then the driving motor drives the two-way threaded rod to rotate, the threaded connecting block drives the sealing block to move towards the connecting position of the oil pump and the overflow valve, and then the first sealing piece is matched with the second sealing piece. The second sealing piece is clamped into the sealing block provided with the first sealing piece, the oil leakage position is urgently sealed, and meanwhile a worker is warned through an induction signal lamp.

Description

Technical Field

[0001] This utility model relates to the field of single-column hydraulic press technology, specifically a precision pressure regulating device for a single-column hydraulic press. Background Technology

[0002] A single-column hydraulic press is a mechanical device for processing metal products, mainly used for processes such as stretching, forming, and pressing of metal products.

[0003] Existing single-column hydraulic presses process metal products of different materials by adjusting pressure to ensure processing accuracy. They mainly use an oil pump to draw hydraulic oil and coordinate with relief valves, throttle valves, and solenoid directional valves for pressure regulation. However, the existing relief valves are fixed to the oil pump with bolts and sealed with seals. Under long-term operation, hydraulic oil leakage is prone to occur, and there is no emergency remedial device to seal it in case of leakage. This will cause the hydraulic oil pressure to drop, requiring the regulating device to be constantly adjusted to maintain the set pressure. Moreover, under long-term operation, the temperature of the hydraulic oil will rise, which will also lead to a drop in pressure, thus affecting the pressure regulation efficiency and causing inconvenience to daily production. Utility Model Content

[0004] The purpose of this invention is to provide a precision pressure regulating device for a single-column hydraulic press to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a precision pressure regulating device for a single-column hydraulic press, comprising a main frame, a worktable fixedly mounted on the main frame, a hydraulic assembly fixedly mounted on the upper end of the main frame, a pressure regulating assembly inside the main frame, an oil storage tank inside the main frame, and an auxiliary mechanism on one side of the oil storage tank, wherein:

[0006] The auxiliary mechanism includes a mounting plate symmetrically installed on one side inside the main frame. A bidirectional threaded rod is rotatably installed inside the mounting plate. Threaded connecting blocks are symmetrically installed on the outer side of the bidirectional threaded rod. A sealing block is fixedly connected to one side of the threaded connecting block. A first sealing element and a second sealing element are fixedly installed inside the two sets of sealing blocks, respectively.

[0007] Furthermore, the auxiliary mechanism also includes a drive motor fixedly installed on one side of the mounting plate, a guide rod fixedly installed between the two sets of mounting plates, and an acoustic sensor fixedly installed on the side of the oil tank near the auxiliary mechanism.

[0008] Furthermore, a cooling mechanism is connected to the side of the oil tank away from the auxiliary mechanism via a pipe. The cooling mechanism includes a cooling box fixedly installed on one side of the main frame, a circulating pump fixedly installed at the upper end of the cooling box, a cooling pipe fixedly connected to one side of the circulating pump, the cooling pipes being evenly distributed inside the oil tank, a temperature sensor fixedly installed at the upper end of the oil tank, and the end of the cooling pipe away from the circulating pump being fixedly connected to one side of the cooling box.

[0009] Furthermore, a pressure regulating component is provided on the side of the oil tank near the auxiliary mechanism. The pressure regulating component includes an oil pump connected to a pipeline on one side of the oil tank. A pipeline assembly is fixedly connected to the upper end of the oil pump. An overflow valve is fixedly connected to the other end of the pipeline assembly. A filter is connected to the other end of the overflow valve. A throttle valve is connected to the other end of the filter. A solenoid directional valve is connected to the other end of the throttle valve.

[0010] Furthermore, the auxiliary mechanism is located on one side of the connection between the overflow valve and the oil pump, the threaded connecting block is threaded to the outer side of the bidirectional threaded rod, the first seal is larger than the second seal, and the first seal is detachably connected to the second seal through two sets of sealing blocks.

[0011] Furthermore, one side of the overflow valve is fixedly connected to the upper end of the oil storage tank via a pipe, the upper end of the electromagnetic reversing valve is fixedly connected to the hydraulic assembly via a pipe, and the bottom end of one side of the electromagnetic reversing valve is fixedly connected to the side of the oil storage tank near the oil pump via a pipe.

[0012] Furthermore, a control box is fixedly installed on one side of the main frame, a pressure gauge is fixedly installed on the upper end of one side of the main frame, and an induction signal light is also fixedly installed on the side of the main frame with the pressure gauge.

[0013] Compared with the prior art, this utility model provides a precision pressure regulating device for a single-column hydraulic press, which has the following beneficial effects:

[0014] This single-column hydraulic press precision pressure regulating device detects specific sound waves generated when hydraulic oil leaks using an acoustic sensor. Then, it activates a drive motor to rotate a bidirectional threaded rod, which, through two sets of threaded connecting blocks, moves a sealing block towards the connection between the oil pump and the overflow valve. Next, the first and second seals work together to engage the second seal within the sealing block containing the first seal, providing an emergency seal at the leak point. Simultaneously, a continuously flashing indicator light alerts staff to the presence of a hydraulic oil leak, enabling timely detection and resolution of the problem. This prevents a drop in hydraulic oil pressure due to failure to seal the leak promptly, thus ensuring accurate pressure regulation. Attached Figure Description

[0015] Figure 1This is a schematic diagram of the main structure of the present utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the main body of this utility model;

[0017] Figure 3 This is a schematic diagram of the pressure regulating component of this utility model;

[0018] Figure 4 This is a schematic diagram of the cooling mechanism of this utility model;

[0019] Figure 5 This is a schematic diagram of the auxiliary mechanism structure of this utility model;

[0020] Figure 6 This is a schematic diagram of the auxiliary mechanism of this utility model during operation;

[0021] Figure 7 This is a partial structural diagram of the auxiliary mechanism of this utility model.

[0022] In the diagram: 1. Main frame; 2. Workbench; 3. Hydraulic components; 4. Pressure gauge; 5. Control box; 6. Cooling mechanism; 61. Cooling tank; 62. Circulating pump; 63. Cooling pipe; 64. Temperature sensor; 7. Oil reservoir; 8. Pressure regulating component; 81. Oil pump; 82. Overflow valve; 83. Filter; 84. Throttle valve; 85. Solenoid directional valve; 9. Piping assembly; 10. Auxiliary mechanism; 101. Drive motor; 102. Mounting plate; 103. Threaded connection block; 104. Sealing block; 105. Bidirectional threaded rod; 106. Guide rod; 107. First seal; 108. Second seal; 109. Acoustic sensor; 11. Induction signal light. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0024] Please see Figure 1 - Figure 7 A precision pressure regulating device for a single-column hydraulic press includes a main frame 1, a worktable 2 fixedly mounted on the main frame 1, a hydraulic assembly 3 fixedly mounted on the upper end of the main frame 1, a pressure regulating assembly 8 inside the main frame 1, and an oil storage tank 7 inside the main frame 1. An auxiliary mechanism 10 is provided on one side of the oil storage tank 7.

[0025] The auxiliary mechanism 10 includes a mounting plate 102 symmetrically installed on one side inside the main frame 1. A bidirectional threaded rod 105 is rotatably installed inside the mounting plate 102. Threaded connecting blocks 103 are symmetrically installed on the outer side of the bidirectional threaded rod 105. A sealing block 104 is fixedly connected to one side of the threaded connecting block 103. A first sealing element 107 and a second sealing element 108 are fixedly installed inside the two sets of sealing blocks 104, respectively.

[0026] Furthermore, the auxiliary mechanism 10 also includes a drive motor 101 fixedly installed on one side of the mounting plate 102, a guide rod 106 fixedly installed between the two sets of mounting plates 102, and an acoustic sensor 109 fixedly installed on the side of the oil tank 7 near the auxiliary mechanism 10. The acoustic sensor 109 is used to detect whether hydraulic oil is leaking.

[0027] Furthermore, a cooling mechanism 6 is connected to the side of the oil storage tank 7 away from the auxiliary mechanism 10. The cooling mechanism 6 includes a cooling box 61 fixedly installed on one side of the main frame 1, a circulation pump 62 fixedly installed on the upper end of the cooling box 61, a cooling pipe 63 fixedly connected to one side of the circulation pump 62, the cooling pipe 63 being evenly distributed inside the oil storage tank 7, a temperature sensor 64 fixedly installed on the upper end of the oil storage tank 7, and the end of the cooling pipe 63 away from the circulation pump 62 being fixedly connected to one side of the cooling box 61.

[0028] Furthermore, a pressure regulating component 8 is provided on the side of the oil tank 7 near the auxiliary mechanism 10. The pressure regulating component 8 includes an oil pump 81 connected to one side of the oil tank 7 by a pipeline. A pipeline assembly 9 is fixedly connected to the upper end of the oil pump 81. An overflow valve 82 is fixedly connected to the other end of the pipeline assembly 9. A filter 83 is connected to the other end of the overflow valve 82 by a pipeline. A throttle valve 84 is connected to the other end of the filter 83 by a pipeline. A solenoid directional valve 85 is connected to the other end of the throttle valve 84 by a pipeline.

[0029] Furthermore, the auxiliary mechanism 10 is located on one side of the connection between the overflow valve 82 and the oil pump 81, the threaded connecting block 103 is threadedly connected to the outer side of the bidirectional threaded rod 105, the first sealing element 107 is larger than the second sealing element 108, and the first sealing element 107 is detachably connected to the second sealing element 108 through two sets of sealing blocks 104.

[0030] Furthermore, one side of the overflow valve 82 is fixedly connected to the upper end of the oil storage tank 7 via a pipe, the upper end of the electromagnetic reversing valve 85 is fixedly connected to the hydraulic component 3 via a pipe, and the bottom end of one side of the electromagnetic reversing valve 85 is fixedly connected to the side of the oil storage tank near the oil pump 81 via a pipe.

[0031] Furthermore, a control box 5 is fixedly installed on one side of the main frame 1, a pressure gauge 4 is fixedly installed on the upper end of one side of the main frame 1, and an induction indicator light 11 is also fixedly installed on the side of the main frame 1 where the pressure gauge 4 is located. The pressure gauge 4 is used to display the pressure in real time, the control box 5 is used to control the operation of the entire hydraulic press, and the induction indicator light 11 will alert the staff immediately when hydraulic oil leaks.

[0032] The specific usage and function of this embodiment are as follows:

[0033] In use, the pressure parameters required for processing metal products are first set through the control box 5. Then, the operator places the metal product to be processed on the upper part of the workbench 2. The oil pump 81 is then started to draw hydraulic oil from the oil storage tank 7. The hydraulic oil is then transported to the relief valve 82 through the pipeline assembly 9 to control the flow direction and pressure of the hydraulic oil. The relief valve 82 is used to prevent cylinder explosion due to excessive pressure. When the pressure is too high, some hydraulic oil will flow back into the oil storage tank 7 through the pipeline. The hydraulic oil is then transported to the filter 83 through the relief valve 82. The filter 83 is used to filter impurities generated in the hydraulic system. The oil is then transported to the throttle valve 84 through the filter 83. The throttle valve 84 is used to reduce the backflow impact by throttling the flow rate. The oil is then transported to the solenoid directional valve 85 through the throttle valve 84. The solenoid directional valve 85 is used for the hydraulic system to make reciprocating motion. Finally, the hydraulic oil is transported to the hydraulic assembly 3 and the metal product is processed through the hydraulic assembly 3.

[0034] Furthermore, when the acoustic sensor 109 detects an oil leak at the connection between the overflow valve 82 and the oil pump 81, the information is transmitted to the control box 5, and the control box 5 sends a command to the auxiliary mechanism 10. First, the drive motor 101 drives the bidirectional threaded rod 105 to rotate, which in turn drives the two sets of threaded connecting blocks 103 to move toward the oil leak, thereby driving the sealing block 104 to move. As the bidirectional threaded rod 105 rotates, the first seal 107 is driven into the sealing block 104 equipped with the second seal 108, thus sealing the connection between the overflow valve 82 and the oil pump 81 in an emergency. At the same time, when the acoustic sensor 109 detects an oil leak, the sensing indicator light 11 will flash continuously to remind the staff that there is a leak in the internal hydraulic system and to perform maintenance in time.

[0035] Furthermore, as the hydraulic oil is continuously compressed, its temperature continues to rise. When the temperature sensor 64 detects that the temperature of the hydraulic oil inside the reservoir 7 exceeds the set value, the sensor transmits the information to the control box 5, which then sends a command to the cooling mechanism 6. The circulation pump 62 is then started to draw coolant from the cooling tank 61 and drives the coolant to circulate within the cooling pipe 63 to cool the reservoir 7. The circulation rate of the circulation pump 62 is adjusted according to the temperature detected by the temperature sensor 64, and then subsequent metal products can be processed.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A single-column hydraulic machine precision pressure regulating device, comprising a main body frame (1), a workbench (2) is fixedly installed on the main body frame (1), a hydraulic assembly (3) is fixedly installed on the upper end of the main body frame (1), and a pressure regulating assembly (8) is arranged in the main body frame (1), characterized in that, The main body frame (1) is internally provided with an oil storage tank (7), one side of the oil storage tank (7) is provided with an auxiliary mechanism (10), wherein: The auxiliary mechanism (10) comprises mounting plates (102) symmetrically mounted on one side of the main body frame (1), a bidirectional threaded rod (105) is rotatably mounted in the mounting plate (102), a threaded connecting block (103) is symmetrically mounted on the outer side of the bidirectional threaded rod (105), a sealing block (104) is fixedly connected on one side of the threaded connecting block (103), and a first sealing element (107) and a second sealing element (108) are respectively fixedly installed in the two groups of sealing blocks (104).

2. The precision pressure regulating device for a single-column hydraulic press according to claim 1, characterized by: The auxiliary mechanism (10) further comprises a driving motor (101) fixedly installed on one side of the mounting plate (102), a guide rod (106) fixedly installed between the two groups of mounting plates (102), and a sound wave sensor (109) fixedly installed on one side of the oil storage tank (7) close to the auxiliary mechanism (10).

3. The precision pressure regulating device for a single column hydraulic press according to claim 2, characterized in that: The oil storage tank (7) is connected with a cooling mechanism (6) on the side away from the auxiliary mechanism (10), the cooling mechanism (6) comprises a cooling tank (61) fixedly installed on one side of the main body frame (1), a circulating pump (62) fixedly installed on the upper end of the cooling tank (61), a cooling pipe (63) fixedly connected on one side of the circulating pump (62), the cooling pipes (63) are uniformly distributed in the oil storage tank (7), a temperature sensor (64) is fixedly installed on the upper end of the oil storage tank (7), and one end of the cooling pipe (63) away from the circulating pump (62) is fixedly connected on one side of the cooling tank (61).

4. The precision pressure regulating device for a single column hydraulic press according to claim 3, characterized in that: The oil storage tank (7) is provided with a pressure adjusting assembly (8) on the side close to the auxiliary mechanism (10), the pressure adjusting assembly (8) comprises an oil pump (81) connected with the oil storage tank (7) through a pipeline, a pipeline assembly (9) fixedly connected on the upper end of the oil pump (81), an overflow valve (82) fixedly connected on the other end of the pipeline assembly (9), a filter (83) connected with the overflow valve (82) through a pipeline, a throttling valve (84) connected with the filter (83) through a pipeline, and an electromagnetic reversing valve (85) connected with the throttling valve (84) through a pipeline.

5. The precision pressure regulating device for a single column hydraulic press according to claim 4, characterized in that: The auxiliary mechanism (10) is located on one side of the connection between the overflow valve (82) and the oil pump (81), the threaded connecting block (103) is threadedly connected with the outer side of the bidirectional threaded rod (105), the first sealing element (107) is larger than the second sealing element (108), and the first sealing element (107) is detachably connected with the second sealing element (108) through the two groups of sealing blocks (104).

6. The precision pressure regulating device for a single column hydraulic press according to claim 5, characterized in that: The overflow valve (82) is fixedly connected with the upper end of the oil storage tank (7) through a pipeline, the electromagnetic reversing valve (85) is fixedly connected with the hydraulic assembly (3) through a pipeline, and the electromagnetic reversing valve (85) is fixedly connected with the side of the oil storage tank close to the oil pump (81) through a pipeline.

7. The precision pressure regulating device for a single column hydraulic press according to claim 3, characterized in that: One side of the main frame (1) is fixedly installed with a control box (5), and an upper end of one side of the main frame (1) is fixedly installed with a pressure gauge (4); and one side of the main frame (1) provided with the pressure gauge (4) is also fixedly installed with an induction signal lamp (11).

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