Mechanical hydraulic device convenient to disassemble

Abstract

The utility model relates to the technical field of mechanical hydraulic devices, in particular to a mechanical hydraulic device convenient to disassemble. Comprising a workbench, stand columns, a sliding block, an ejector block, a lower pressing plate, an upper pressing plate, a hydraulic cylinder, a connecting frame and the like, the sliding block is arranged between the stand columns in a sliding mode, the ejector block is installed on the stand columns, the lower pressing plate is arranged on the workbench in a sliding mode, the upper pressing plate is arranged on the sliding block in a sliding mode, and the hydraulic cylinder is installed on the ejector block; and connecting frames are arranged on the top block at intervals. According to the mechanical hydraulic device, the sliding block, the top block, the hydraulic cylinder, the connecting frame, the rotating block, the hexagonal nut, the spring I and the rotating mechanism are matched, so that the hexagonal nut can be automatically twisted when the top block of the mechanical hydraulic device is mounted or dismounted, the hexagonal nut can quickly fix or loosen the top block, the operation is simple, time and labor are saved, and the working efficiency is improved. And in addition, workers do not need to climb on the top block for operation, and the safety is high.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical hydraulic devices, in particular to a mechanical hydraulic device convenient for disassembly. Background Art

[0002] In the field of modern mechanical engineering, mechanical hydraulic devices are widely used in multiple industries such as construction, manufacturing, transportation, and aerospace due to their advantages of high efficiency, flexibility, high power-to-weight ratio, etc.; in mechanical hydraulic devices, most projects will use three-beam four-column hydraulic cylinders. The three-beam four-column hydraulic press is a kind of mechanical equipment widely used in fields such as metal material forming, plastic product pressing, powder metallurgy, and rubber product vulcanization. Its name comes from its typical structural features: a main frame composed of three crossbeams (upper crossbeam, lower crossbeam, and a movable middle crossbeam or slider) and four columns.

[0003] Currently, during the installation of the three-beam four-column hydraulic cylinder, one step requires using a crane to lift the upper crossbeam above the four columns and align the four columns with the four mounting holes of the upper crossbeam respectively. Then, use the crane to slowly lower the upper crossbeam so that the four columns slowly pass through the four mounting holes of the upper crossbeam. Finally, fix nuts on the upper ends of the four columns to complete the fixation of the upper crossbeam; however, in the above method, during operation, workers need to climb to the top of the upper crossbeam to fix the nuts on the upper ends of the four columns, which is not only troublesome to operate, but also there are certain safety hazards when workers operate on the top of the upper crossbeam, and the safety is relatively low. Summary of the Utility Model

[0004] Therefore, the utility model provides a mechanical hydraulic device convenient for disassembly, which can solve the disadvantages that when fixing the upper crossbeam of the three-beam four-column hydraulic cylinder, workers need to climb to the top of the upper crossbeam to fix the nuts on the upper ends of the four columns, which is not only troublesome to operate, but also there are certain safety hazards when workers operate on the top of the upper crossbeam, and the safety is relatively low.

[0005] The technical implementation solution of the utility model is: a mechanical hydraulic device convenient for disassembly, including a workbench and columns, and further including a slider, a top block, a lower pressing plate, an upper pressing plate, a hydraulic cylinder, a connecting frame, a rotating block, a hexagonal nut, a spring I, a rotating mechanism, and a docking mechanism. The slider is slidably arranged between the columns, the top block is installed on the columns, the lower pressing plate is slidably arranged on the workbench, the upper pressing plate is slidably arranged on the slider, the hydraulic cylinder is installed on the top block, card slots are spaced on the telescopic rod of the hydraulic cylinder, connecting frames are spaced on the top block, the rotating block is rotatably connected to the connecting frame, the hexagonal nut is slidably arranged in the rotating block, and the hexagonal nut is threadedly connected to the end of the column. Both ends of the spring I are respectively connected to the hexagonal nut and the rotating block. The rotating mechanism is used to drive the rotating block to rotate, and the docking mechanism is used to dock the telescopic rod of the hydraulic cylinder with the slider.

[0006] Preferably, the rotating mechanism includes a servo motor and a pulley assembly. The servo motor is installed on the top block, and the pulley assembly is respectively installed on the output shaft of the servo motor and the rotating block. The pulley assembly is used for transmitting power between the rotating blocks and for transmitting power between the output shaft of the servo motor and the rotating block.

[0007] Preferably, the docking mechanism includes a fixed ring, a clamping rod, and a spring II. The fixed ring is installed on the slider, and the clamping rod is slidably arranged on the fixed ring at intervals. The clamping rod is inserted into the clamping groove of the telescopic rod of the hydraulic cylinder, and the two ends of the spring II are respectively connected to the fixed ring and the clamping rod.

[0008] Preferably, the docking mechanism further includes a connecting rod and a rotating ring. The connecting rod is connected to the clamping rod, and the rotating ring is rotatably connected to the fixed ring. When the rotating ring rotates, it comes into contact with the connecting rod.

[0009] Preferably, the docking mechanism further includes a torsion spring. The two ends of the torsion spring are respectively connected to the rotating ring and the fixed ring. The torsion spring is used for resetting the rotating ring after rotation.

[0010] Preferably, a limiting mechanism is further included. The limiting mechanism includes a clamping block and a spring III. The two clamping blocks are respectively slidably arranged on the workbench and the slider. The two clamping blocks respectively clamp the lower pressing plate and the upper pressing plate. One ends of the two springs III are respectively connected to the two clamping blocks, and the other ends of the two springs III are respectively connected to the workbench and the slider.

[0011] Compared with the prior art, the present utility model has the following advantages: 1. Through the cooperation of the slider, the top block, the hydraulic cylinder, the connecting frame, the rotating block, the hexagon nut, the spring I, and the rotating mechanism, when installing or disassembling the top block of the mechanical hydraulic device, the present utility model can automatically twist the hexagon nut, so that the hexagon nut can quickly fix or loosen the top block. It is not only simple to operate, time-saving and labor-saving, but also there is no need for manual climbing onto the top block for operation, and the safety is relatively high.

[0012] 2. By setting the docking mechanism, the present utility model can facilitate people to dock or disconnect the telescopic rod of the hydraulic cylinder with the slider, thereby improving the assembly and disassembly speed of people. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0014] Figure 2 is a three-dimensional structural schematic diagram of the connecting frame, the rotating block, and the hexagon nut of the present utility model;

[0015] Figure 3 is a separated structural diagram of the connecting frame, the rotating block, and the hexagon nut of the present utility model;

[0016] Figure 4Schematic three-dimensional structure diagram of the rotating mechanism of the present utility model;

[0017] Figure 5 Schematic three-dimensional structure diagram of the docking mechanism of the present utility model;

[0018] Figure 6 Cross-sectional view of the docking mechanism of the present utility model;

[0019] Figure 7 Cross-sectional view of the slider of the present utility model;

[0020] Figure 8 Cross-sectional view of the workbench of the present utility model;

[0021] Figure 9 For the present utility model Figure 8 Enlarged view of part A in

[0022] Reference numerals: 1, workbench; 2, column; 3, slider; 4, top block; 5, lower pressing plate; 6, upper pressing plate; 7, hydraulic cylinder; 71, card slot; 8, connecting frame; 9, rotating block; 10, hexagon nut; 11, spring I; 12, servo motor; 13, pulley assembly; 14, fixing ring; 15, clamping rod; 151, spring II; 16, connecting rod; 17, rotating ring; 18, torsion spring; 19, clamping block; 20, spring III. Detailed implementation manners

[0023] Embodiment: A mechanical hydraulic device convenient for disassembly, as Figures 1 - 6 shown, includes a workbench 1 and columns 2; four columns 2 are installed on the workbench 1 at intervals, and threads are provided at the upper ends of the four columns 2; it further includes a slider 3, a top block 4, a lower pressing plate 5, an upper pressing plate 6, a hydraulic cylinder 7, a connecting frame 8, a rotating block 9, a hexagon nut 10, a spring I 11, a rotating mechanism and a docking mechanism; the slider 3 is slidably arranged between the four columns 2; the top block 4 is installed between the upper sides of the four columns 2; the lower pressing plate 5 is slidably arranged on the top of the workbench 1; the upper pressing plate 6 is slidably arranged at the bottom of the slider 3; the hydraulic cylinder 7 is installed in the middle of the top block 4, and card slots 71 are annularly and spacedly arranged on the telescopic rod of the hydraulic cylinder 7; four connecting frames 8 are spacedly arranged on the top block 4; the rotating block 9 is rotatably connected to the upper side of the connecting frame 8; the hexagon nut 10 is slidably arranged in the rotating block 9, and the hexagon nut 10 is threadedly connected to the upper end of the column 2; both ends of the spring I 11 are respectively connected to the lower side of the hexagon nut 10 and the bottom of the rotating block 9; the rotating mechanism is used to drive the rotating block 9 to rotate, so that the rotating block 9 drives the hexagon nut 10 to rotate, thereby fixing the hexagon nut 10 on the upper end of the column 2; the docking mechanism is used to dock the telescopic rod of the hydraulic cylinder 7 with the slider 3, so that the hydraulic cylinder 7 can drive the slider 3 to move.

[0024] As Figure 4As shown in the figure, the rotating mechanism includes a servo motor 12 and a pulley assembly 13. The servo motor 12 is installed in the middle of the right side of the top block 4. The pulley assembly 13 consists of pulleys and a flat belt. A pulley is provided on the output shaft of the servo motor 12, and two pulleys are provided on the outer sides of the rotating blocks 9 on the right front side, left front side, and left rear side. One pulley is provided on the outer side of the rotating block 9 on the right rear side. A flat belt is wound around the pulleys on the two rotating blocks 9 at the rear side, a flat belt is wound around the pulleys on the two rotating blocks 9 on the left side, a flat belt is wound around the pulleys on the two rotating blocks 9 on the front side, and a flat belt is wound around the pulley on the rotating block 9 on the right front side and the pulley on the output shaft of the servo motor 12. In this way, the servo motor 12 can drive the four rotating blocks 9 to rotate synchronously by using the pulley assembly 13.

[0025] As Figure 5 and Figure 6 shown in the figure, the docking mechanism includes a fixed ring 14, a clamping rod 15, a spring II 151, a connecting rod 16, a rotating ring 17, and a torsion spring 18. The fixed ring 14 is installed in the middle of the top of the slider 3. The clamping rod 15 is slidably arranged at intervals in a ring shape on the fixed ring 14, and the clamping rod 15 is clamped into the clamping groove 71 of the telescopic rod of the hydraulic cylinder 7 to dock the telescopic rod of the hydraulic cylinder 7 with the slider 3. The two ends of the spring II 151 are respectively connected to the fixed ring 14 and the clamping rod 15. The connecting rod 16 is connected to the clamping rod 15. The rotating ring 17 is rotatably connected to the fixed ring 14, and the rotating ring 17 will come into contact with the connecting rod 16 when it rotates. The two ends of the torsion spring 18 are respectively connected to the rotating ring 17 and the fixed ring 14, and the torsion spring 18 is used for the rotating ring 17 to reset after rotation.

[0026] When assembling the mechanical hydraulic device, install the workbench 1 at the designated position, then fix the four columns 2 on the workbench 1. Then use a crane to lift the slider 3 between the four columns 2 so that the slider 3 is directly above the workbench 1. Then use a crane to lift the top block 4 above the four columns 2, and then slowly lower the top block 4 using the crane so that the top block 4 gradually enters the upper side of the four columns 2. During this period, when the hexagonal nut 10 contacts the upper end of the column 2, the upper end of the column 2 will use the thread to squeeze the hexagonal nut 10 to move upward, and the spring Ⅰ 11 is compressed. When the top block 4 is on the upper side of the four columns 2, then use the servo motor 12 to drive the four rotating blocks 9 to rotate synchronously through the pulley assembly 13, so that the four rotating blocks 9 drive the four hexagonal nuts 10 to rotate synchronously, so that the four hexagonal nuts 10 are simultaneously screwed into the threads at the upper end of the column 2, thereby installing the top block 4. At the same time, under the elastic force of the spring Ⅰ 11, the spring Ⅰ 11 will continuously squeeze the hexagonal nut 10 to move downward and reset until the hexagonal nut 10 is completely screwed into the threads at the upper end of the column 2. After the hexagonal nut 10 is completely screwed into the threads at the upper end of the column 2, the spring Ⅰ 11 returns to its original state. In this way, the installation of the top block 4 can be automatically completed; then twist the rotating ring 17 to rotate, and the torsion spring 18 deforms until the rotating ring 17 rotates until it contacts the connecting rod 16, so that the rotating ring 17 squeezes the connecting rod 16 and the clamping rod 15 to move away from each other, and the spring Ⅱ 151 is compressed. Then drive the telescopic rod to extend through the hydraulic cylinder 7 so that the telescopic rod extends into the fixed ring 14 until the card slot 71 on the telescopic rod is aligned with the clamping rod 15. Then release the rotating ring 17, and the torsion spring 18 returns to its original state. The torsion spring 18 drives the rotating ring 17 to reverse and reset. When the rotating ring 17 separates from the connecting rod 16, the spring Ⅱ 151 returns to its original state. The spring Ⅱ 151 drives the clamping rod 15 and the connecting rod 16 to move closer to each other and reset, so that the clamping rod 15 is stuck into the card slot 71 on the telescopic rod of the hydraulic cylinder 7, thereby completing the docking of the telescopic rod of the hydraulic cylinder 7 with the slider 3. Then drive the telescopic rod to shorten through the hydraulic cylinder 7 so that the telescopic rod drives the slider 3 to move upward, so that the slider 3 is separated from the workbench 1, as Figure 1 shown. In this way, the assembly of the mechanical hydraulic device can be completed;

[0027] When using the mechanical hydraulic device, place the workpiece on the lower pressing plate 5, and then drive the slider 3 and the upper pressing plate 6 to gradually approach the lower pressing plate 5 through the hydraulic cylinder 7, so that the upper pressing plate 6 can squeeze the workpiece on the lower pressing plate 5. After the workpiece is squeezed, then drive the slider 3 and the upper pressing plate 6 to gradually move away from the lower pressing plate 5 through the hydraulic cylinder 7;

[0028] When the mechanical hydraulic device needs to be disassembled, the telescopic rod is driven by the hydraulic cylinder 7 to extend again, so that the telescopic rod drives the slider 3 to move downward and reset, so that the slider 3 contacts the workbench 1. Then, the rotating ring 17 is twisted and rotated again, and the torsion spring 18 is deformed, so that the rotating ring 17 squeezes the connecting rod 16 and the clamping rod 15 to move away from each other, and the spring II 151 is compressed, so that the clamping rod 15 leaves the clamping groove 71, and then the telescopic rod of the hydraulic cylinder 7 is disconnected from the slider 3. Then, the telescopic rod is driven by the hydraulic cylinder 7 to shorten, so that the telescopic rod leaves the fixed ring 14. After that, the rotating ring 17 is loosened again, and the torsion spring 18 returns to its original state. The torsion spring 18 drives the rotating ring 17 to reverse and reset. When the rotating ring 17 is separated from the connecting rod 16, the spring II 151 returns to its original state, and the spring II 151 drives the clamping rod 15 and the connecting rod 16 to move closer to each other and reset. Then, the servo motor 12 drives the four rotating blocks 9 to rotate synchronously in the reverse direction through the pulley assembly 13, so that the four rotating blocks 9 drive the four hexagon nuts 10 to rotate synchronously in the reverse direction, so that the four hexagon nuts 10 are loosened from the threads at the upper end of the column 2 synchronously, so as to gradually release the fixation of the top block 4. During this period, when the hexagon nut 10 moves upward, the spring I 11 is gradually compressed. After the fixation of the top block 4 is completely released, the top block 4 is lifted off the four columns 2 by a crane. When the hexagon nut 10 is separated from the upper end of the column 2, the spring I 11 returns to its original state, and the spring I 11 drives the hexagon nut 10 to move downward and reset. Then, the slider 3 is lifted out from between the four columns 2 by a crane, and then the four columns 2 are removed from the workbench 1, and then the workbench 1 is removed from the designated position. In this way, the disassembly of the mechanical hydraulic device can be completed.

[0029] As Figures 7 - 9 shown, it further includes a limiting mechanism, and the limiting mechanism includes a clamping block 19 and a spring III 20; the two clamping blocks 19 are respectively slidably arranged in the middle of the front side of the upper part of the workbench 1 and the middle of the front side of the upper part of the slider 3, and the two clamping blocks 19 respectively clamp the lower pressing plate 5 and the upper pressing plate 6; the two ends of the upper spring III 20 are respectively connected to the upper clamping block 19 and the slider 3, and the two ends of the lower spring III 20 are respectively connected to the lower clamping block 19 and the workbench 1.

[0030] By setting the clamping block 19, the clamping block 19 can limit the lower pressing plate 5 and the upper pressing plate 6 to prevent the lower pressing plate 5 and the upper pressing plate 6 from moving; when it is necessary to replace the lower pressing plate 5 and the upper pressing plate 6, the clamping block 19 can be pulled to move away from each other, the spring III 20 is compressed, so that the clamping block 19 releases the lower pressing plate 5 and the upper pressing plate 6, and then the lower pressing plate 5 and the upper pressing plate 6 can be pulled forward to be replaced. After that, the new lower pressing plate 5 and the upper pressing plate 6 are put back in place backward, and then the clamping block 19 is released, the spring III 20 returns to its original state, and the spring III 20 drives the clamping block 19 to move and reset toward the side close to each other, so that the clamping block 19 limits the lower pressing plate 5 and the upper pressing plate 6. In this way, it is convenient for people to replace the lower pressing plate 5 and the upper pressing plate 6.

Claims

1. A mechanical hydraulic device that is easy to disassemble, comprising a workbench (1) and a column (2), characterized in that: The invention also comprises a slider (3), a top block (4), a lower pressure plate (5), an upper pressure plate (6), a hydraulic cylinder (7), a connecting frame (8), a rotating block (9), a hexagonal nut (10), a spring I (11), a rotating mechanism and a docking mechanism. The slider (3) is slidably arranged between the columns (2), the top block (4) is mounted on the columns (2), the lower pressure plate (5) is slidably arranged on the workbench (1), the upper pressure plate (6) is slidably arranged on the slider (3), the hydraulic cylinder (7) is mounted on the top block (4), and the extension of the hydraulic cylinder (7) is The retractable rod is provided with slots (71) at intervals, the top block (4) is provided with connecting frames (8) at intervals, the rotating block (9) is rotatably connected to the connecting frame (8), the hexagonal nut (10) is slidably arranged in the rotating block (9), and the hexagonal nut (10) is threadedly connected to the end of the column (2), the two ends of the spring I (11) are respectively connected to the hexagonal nut (10) and the rotating block (9), the rotating mechanism is used to drive the rotating block (9) to rotate, and the docking mechanism is used to dock the telescopic rod of the hydraulic cylinder (7) with the slider (3).

2. A mechanical hydraulic device that is easy to disassemble as claimed in claim 1, characterized in that: The rotating mechanism comprises a servo motor (12) and a pulley assembly (13), wherein the servo motor (12) is mounted on the top block (4), and the pulley assembly (13) is respectively mounted on the output shaft of the servo motor (12) and the rotating block (9), and the pulley assembly (13) is used for transmission between the rotating blocks (9), and the pulley assembly (13) is used for transmission between the output shaft of the servo motor (12) and the rotating block (9).

3. A mechanical hydraulic device that is easy to disassemble as claimed in claim 2, characterized in that: The docking mechanism comprises a fixing ring (14), a clamping rod (15) and a spring II (151). The fixing ring (14) is mounted on the slider (3). The fixing ring (14) is provided with clamping rods (15) for sliding at intervals. The clamping rods (15) are clamped into a clamping groove (71) of a telescopic rod of a hydraulic cylinder (7). Two ends of the spring II (151) are respectively connected to the fixing ring (14) and the clamping rod (15).

4. A mechanical hydraulic device that is easy to disassemble as claimed in claim 3, characterized in that: The docking mechanism further comprises a connecting rod (16) and a rotating ring (17); the connecting rod (16) is connected to the clamping rod (15); the rotating ring (17) is rotatably connected to the fixed ring (14); and the rotating ring (17) comes into contact with the connecting rod (16) when rotating.

5. A mechanical hydraulic device that is easy to disassemble as claimed in claim 4, characterized in that: The docking mechanism also includes a torsion spring (18), the two ends of which are respectively connected to the rotating ring (17) and the fixed ring (14), and the torsion spring (18) is used to reset the rotating ring (17) after rotation.

6. A mechanical hydraulic device that is easy to disassemble as claimed in claim 5, characterized in that: The invention also includes a limiting mechanism, which includes a clamping block (19) and a spring III (20). The two clamping blocks (19) are respectively slidably arranged on the workbench (1) and the slider (3). The two clamping blocks (19) respectively clamp the lower pressure plate (5) and the upper pressure plate (6). One end of the two springs III (20) is respectively connected to the two clamping blocks (19), and the other end of the two springs III (20) is respectively connected to the workbench (1) and the slider (3).

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