CN222946271U

CN222946271U - A hydraulic press

Info

Publication number: CN222946271U
Application number: CN202421535186.6U
Authority: CN
Inventors: 秦福强; 赵宝玉
Original assignee: Shandong Jianha Baofa Heavy Industry Machinery Co ltd
Current assignee: Shandong Jianha Baofa Heavy Industry Machinery Co ltd
Priority date: 2024-07-01
Filing date: 2024-07-01
Publication date: 2025-06-06
Anticipated expiration: 2034-07-01

Abstract

The utility model discloses a hydraulic machine, which relates to the technical field of engineering machinery and adopts the technical scheme that the hydraulic machine comprises at least one hydraulic machine unit, wherein the hydraulic machine unit comprises a workbench, a lower die, an upper die and an upper beam which are sequentially arranged from bottom to top, a plurality of vertical sliding columns are arranged between the lower die and the upper beam, and are inserted into the upper die. The utility model has the effect of improving the use safety so as to avoid the safety risk caused by abnormal die assembly of the upper die and the lower die.

Description

Hydraulic press

Technical Field

The utility model relates to the technical field of engineering machinery, in particular to a hydraulic machine.

Background

The hydraulic press is a machine for processing metal, plastic, rubber, wood, powder and other products by utilizing hydrostatic pressure, is commonly used in pressing process and press forming process, and adopts the principle of utilizing liquid pressure transmission machine made by utilizing Pascal law, the machine for transmitting energy to realize various processes is widely applied in the industrial production process, and during the production, the upper die is matched with the lower die to press the product under the driving of the upper hydraulic cylinder.

The chinese patent with publication number CN217803482U discloses a hydraulic press with high safety, which comprises a frame, the bottom pillar is installed on the lower surface symmetry of frame, the pneumatic cylinder is installed on the top of frame, the upper mould is installed to the output of pneumatic cylinder, the internally mounted of frame has the lower mould, the connecting rod is installed to the front symmetry of upper mould, the plastic transparent baffle is installed to the one end of connecting rod, the bottom plate is installed on the front of frame, the lower surface of plastic transparent baffle is laminated with the upper surface of bottom plate, the curb plate is installed to the bilateral symmetry of frame.

But this hydraulic press that security is high is in the use, only stops the sweeps that splashes that form because of huge pressure that produces in the backlog process through plastics transparent baffle, and when last lower mould die sinking, thereby is difficult to effectively prevent because of the risk that the upper and lower mould is closed the die suddenly that the pneumatic cylinder pressure release leads to influences the operation safety, remains to be improved.

Disclosure of Invention

In view of the above, the present application is directed to a hydraulic press for achieving the purpose of remarkably improving the safety of use to avoid the safety risk caused by abnormal mold closing of the upper and lower molds. The specific scheme is as follows:

the hydraulic press comprises at least one hydraulic unit, wherein the hydraulic unit comprises a workbench, a lower die, an upper die and an upper beam which are sequentially arranged from bottom to top, a plurality of vertical sliding columns are arranged between the lower die and the upper beam, the sliding columns are inserted into the upper die, the upper beam is provided with an oil cylinder for driving the upper die to vertically lift and reciprocate, the top of the upper die is provided with a safety upright column, the upper end of the safety upright column vertically penetrates through the upper beam upwards and penetrates out, and the upper beam is provided with a safety lock which is inserted and matched with the top of the safety upright column.

Preferably, the safety lock comprises a linear expansion device, a telescopic movable rod inserted in the linear expansion device to drive the telescopic movable rod, and an insertion straight handle connected with the end part of the telescopic movable rod, wherein an upright post slot in matched insertion connection with the insertion straight handle is arranged at the top of the safety upright post.

Preferably, the height of the upright post slot is larger than that of the plugging straight handle, and the top of the safety upright post is provided with an upright post cover which is detachably connected.

Preferably, the bottom of the linear expansion joint is provided with a base fixedly connected with the upper beam, the corresponding end of the expansion movable rod is provided with a U-shaped hinge joint, and the inserting straight handle is connected with the U-shaped hinge joint in an up-down rotating mode.

Preferably, the safety lock further comprises a limiting seat, and the limiting seat is provided with a limiting slot matched with the plugging straight handle.

Preferably, an oil tank is arranged at the top of at least one hydraulic unit, and the oil tank is provided with an oil delivery pipe and an oil return pipe which are connected with the oil cylinders.

Preferably, a stay wire sensor is arranged between the upper beam and the upper die, and the stay wire sensor is used for monitoring the distance between the upper die and the upper beam.

Preferably, the hydraulic oil pump comprises at least two hydraulic units, a bridge is arranged between every two adjacent hydraulic units and is used for being matched with an oil delivery pipe between every two adjacent hydraulic units, the top of one hydraulic unit is provided with an oil tank, the oil delivery pipe is connected with an oil valve and a motor, and the motor is used for controlling the flow speed and the flow quantity of oil flowing into the corresponding oil cylinder through the oil valve.

According to the scheme, the hydraulic press has the beneficial effects that when the upper die and the lower die are opened through safe locking, the hydraulic press is matched and inserted with the upper die which is moved to the set high end, so that abnormal die closing phenomenon of the upper die and the lower die caused by pressure release of the oil cylinder is effectively prevented, and the use safety of the hydraulic press is effectively improved.

Drawings

Fig. 1 is a schematic structural view of the present embodiment;

FIG. 2 is a schematic view of the structure at another angle of the present embodiment;

Fig. 3 is a schematic diagram of the matching structure of the safety lock and the safety post of the present embodiment.

The reference numerals are 1, a hydraulic unit, 11, a bridge frame, 2, a workbench, 3, a lower die, 4, an upper die, 41, an upper beam, 5, a sliding column, 6, an oil cylinder, 61, an oil tank, 62, an oil delivery pipe, 63, an oil return pipe, 7, a safety upright post, 71, an upright post slot, 72, an upright post cover, 8, a safety lock, 81, a linear telescopic device, 811, a base, 82, a telescopic movable rod, 821, a U-shaped hinge joint, 822, a plugging straight handle, 83, a limiting seat, 831, a limiting slot, 9 and a stay wire sensor.

Detailed Description

In order to make the technical solution and advantages of the present utility model more apparent, the present utility model will be described in more detail below with reference to the accompanying drawings, wherein it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1, a hydraulic machine comprises at least one hydraulic unit 1. In the embodiment of the application, the two hydraulic units 1 are arranged back and forth, and the corresponding hydraulic processing treatment is completed when materials sequentially pass through the two hydraulic units 1.

In this case, the hydraulic unit 1 includes a table 2, a lower die 3, an upper die 4, and an upper beam 41, which are arranged in this order from bottom to top. Wherein, a plurality of vertical slide posts 5 are arranged between the lower die 3 and the upper beam 41, and the slide posts 5 are inserted in the upper die 4. When the upper die 4 moves along the vertical lifting direction, the slide column 5 plays an effective guiding and limiting role. An oil cylinder 6 for driving the upper die 4 to vertically lift and reciprocate is arranged at the top of the upper beam 41, and the oil cylinder 6 realizes effective lifting control of the upper die 4 through the input and output of hydraulic oil. In order to avoid the condition that the oil cylinder 6 falls outside the upper die 4 caused by pressure relief, the upper end of the upper die 4 is provided with a safety upright post 7 which vertically penetrates through the upper beam 41 upwards and penetrates out, and the upper beam 41 is correspondingly provided with a safety lock 8 which is in plug-in matching with the top of the safety upright post 7. The safety lock 8 is in plug-in matching with the safety upright post 7 after penetrating out of the top of the upper die 4 from bottom to top through the upward operation of the upper die 4, so that the safety upright post 7 and the upper die 4 are effectively prevented from falling outside, and the use safety of the hydraulic press is remarkably improved.

As shown in fig. 1 and 3, the safety lock 8 includes a linear expansion device 81, a telescopic movable rod 82 inserted into the linear expansion device 81 to be driven to expand and contract, and an insertion straight shank 822 connected to an end of the telescopic movable rod 82. A post socket 71 is provided on the top of the safety post 7, which is connected in a mating manner to a plug-in stem 822. Therefore, when the top of the safety post 7 moves up to the set position, the linear telescopic device 81 controls the telescopic movable rod 82 to move towards the safety post 7, and the plugging straight handle 822 is inserted into the post slot 71 of the safety post 7, so that the purpose of plugging and pairing the safety post 7 with the safety lock 8 is achieved, and the purpose of preventing falling outside the upper die 4 is achieved.

It should be mentioned that the height of the upright post slot 71 is greater than the height of the plugging straight shank 822, so as to reduce the plugging matching difficulty of the plugging straight shank 822 and the safety upright post 7, and be suitable for matching operation of the safety lock 8 when the upper die 4 moves upwards, so as to avoid the risk of unexpected falling in the operation process of the upper die 4. At the same time, a detachably connected column cover 72 is provided on top of the safety column 7. The post cover 72 acts to abut the plugging stem 822 and prevent the upper die 4 from accidentally falling down, and the post cover 72 is replaced by a detachable connection to avoid the risk of abrasion of the post cover 72.

As shown in fig. 1 and 2, a base 811 fixedly connected with the upper beam 41 is provided at the bottom of the linear expansion joint 81, a U-shaped hinge 821 is provided at a corresponding end of the expansion movable rod 82, and a plugging straight handle 822 is connected with the U-shaped hinge 821 in a vertically rotating manner. Therefore, the connection of the linear expansion device 81 with the insertion straight shank 822 through the U-shaped hinge joint 821 will provide more mobility between the insertion straight shank 822 and the U-shaped hinge joint 821, avoiding the influence on the stability of the connection structure due to the relative movement generated during the use process, thereby effectively prolonging the service life of the safety lock 8.

In order to further improve the stability of the fit and the stability of the connection structure of the safety lock 8 and the safety post 7, the safety lock 8 is further provided with a limiting seat 83, and a limiting slot 831 matched with the plugging straight handle 822 is arranged on the limiting seat 83. Thus, the plugging stem 822 will mate with the post socket 71 of the safety post 7 by passing through the limiting socket 831. An oil tank 61 is provided at the top of one of the hydraulic power units 1, and an oil delivery pipe 62 and an oil return pipe 63 connected to the plurality of cylinders 6 are provided on the oil tank 61. Here, it should be noted that, the upper die 4 is connected with at least one oil cylinder 6, and in this embodiment, the upper die 4 in each hydraulic unit 1 is connected with two oil cylinders 6, and four oil cylinders 6 in the two hydraulic units 1 are connected with oil delivery pipes 62 of an oil tank 61, and the oil cylinders 6 are connected with the oil cylinders 6 through corresponding oil return pipes 63. At the same time, a bridge 11 is arranged between two adjacent hydraulic assemblies 1. The bridge 11 is used for matching with an oil delivery pipe 62 between two adjacent hydraulic units 1, and the oil delivery pipe 62 is connected with an oil valve and a motor. The motor is used for controlling the flow rate and flow rate of the oil passing through the oil valve and flowing into the corresponding oil cylinder 6. Therefore, the oil cylinder 6 in the hydraulic unit 1 can realize accurate and stable lifting control of the upper die 4.

In order to further improve the stability of the fit of the safety lock 8 with the safety post 7, a pull wire sensor 9 is arranged between the upper beam 41 and the upper die 4. The pull wire sensor 9 is used for monitoring the distance between the upper die 4 and the upper beam 41, when the distance between the upper die 4 and the upper beam 41 is gradually reduced, the linear telescopic device 81 drives the telescopic movable rod 82 to extend, when the upright post slot 71 moves to a set height, the telescopic movable rod 82 is inserted into the upright post slot 71 to form preliminary matching, and when the upright post slot 71 continues to ascend along with the safety upright post 7, the telescopic movable rod 82 is gradually and completely matched with the upright post slot 71.

In summary, the application provides a hydraulic press, which is matched and spliced with an upper die 4 moving to a set high end when the upper die 4 and a lower die 3 are opened through a safety lock 8, so that abnormal die closing phenomenon of the upper die 3 and the lower die 3 caused by pressure relief of an oil cylinder 6 is effectively prevented, and the use safety of the hydraulic press is effectively improved.

The references to "first," "second," "third," "fourth," etc. (if present) are used to distinguish similar objects from each other and are not necessarily used to describe a particular order or sequence. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments described herein may be implemented in other sequences than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, or apparatus.

It should be noted that the description of "first", "second", etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implying an indication of the number of technical features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present application.

While the principles and embodiments of the present application have been described in detail in this application, the foregoing embodiments are provided to facilitate understanding of the principles and concepts of the application and are further provided by one of ordinary skill in the art to which the application pertains.

Claims

1. The hydraulic press comprises at least one hydraulic press unit (1), wherein the hydraulic press unit (1) comprises a workbench (2), a lower die (3), an upper die (4) and an upper beam (41) which are sequentially arranged from bottom to top, a plurality of vertical sliding columns (5) are arranged between the lower die (3) and the upper beam (41), the sliding columns (5) are inserted into the upper die (4), and the hydraulic press is characterized in that the upper beam (41) is provided with an oil cylinder (6) for driving the upper die (4) to vertically lift and reciprocate, the top of the upper die (4) is provided with a safety upright (7) with the upper end for vertically penetrating through the upper beam (41) upwards and penetrating out, and the upper beam (41) is provided with a safety lock (8) which is matched with the top of the safety upright (7) in an inserted mode.

2. A hydraulic machine according to claim 1, characterized in that the safety lock (8) comprises a linear expansion device (81), a telescopic movable rod (82) inserted in the linear expansion device (81) to drive the telescopic movement, and an inserting straight shank (822) connected with the end part of the telescopic movable rod (82), and the top of the safety column (7) is provided with a column slot (71) which is matched and inserted with the inserting straight shank (822).

3. A hydraulic machine according to claim 2, characterized in that the height of the post slot (71) is greater than the height of the plugging stem (822) and the top of the safety post (7) is provided with a post cover (72) which is detachably connected.

4. The hydraulic machine according to claim 2, wherein a base (811) fixedly connected with the upper beam (41) is arranged at the bottom of the linear expansion device (81), a U-shaped hinge joint (821) is arranged at the corresponding end of the expansion movable rod (82), and the inserting straight handle (822) is connected with the U-shaped hinge joint (821) in an up-and-down rotation mode.

5. A hydraulic machine according to claim 4, wherein the safety lock (8) further comprises a limit seat (83), said limit seat (83) being provided with a limit slot (831) matching the insertion stem (822).

6. A hydraulic machine according to claim 1, characterized in that the top of at least one of the hydraulic units (1) is provided with a tank (61), said tank (61) being provided with an oil delivery pipe (62) and an oil return pipe (63) connected to the cylinder (6).

7. A hydraulic press according to claim 6, wherein a pull wire sensor (9) is arranged between the upper beam (41) and the upper die (4), and the pull wire sensor (9) is used for monitoring the distance between the upper die (4) and the upper beam (41).

8. The hydraulic machine according to claim 6, comprising at least two hydraulic units (1), wherein a bridge frame (11) is arranged between two adjacent hydraulic units (1), the bridge frame (11) is used for matching with an oil delivery pipe (62) between two adjacent hydraulic units (1), the top of one hydraulic unit (1) is provided with the oil tank (61), and the oil delivery pipe (62) is connected with an oil valve and a motor, and the motor is used for controlling the flow rate and the flow rate of oil passing through the oil valve and flowing into the corresponding oil cylinder (6).