Hydraulic machine with hydraulic plunger structure

Abstract

The invention relates to the technical field of hydraulic machines, in particular to a hydraulic machine with a hydraulic plunger structure. The hydraulic device aims at solving the problems that an existing hydraulic device is unbalanced in load in use, a plunger is bent, and normal use is affected. Comprising a frame body; the hydraulic device is fixedly connected to the frame body, and the hydraulic device is provided with a telescopic end; the top seat is fixedly connected to the telescopic end of the hydraulic device and is in ball connection with a top plate, and spring telescopic rods are arranged in the circumferential direction of the top plate at intervals; the base is fixedly connected to the frame body, the base is in ball joint with a bottom plate, the bottom plate is used for containing a machined object, and when the telescopic end of the hydraulic device is subjected to unbalance loading, the bottom plate and the top plate are rotated to adjust the position of the machined object so as to adjust the stress direction of the telescopic end of the hydraulic device. The tool deflects when cutting a machined object, the top plate and the bottom plate rotate to adjust the position of the machined object, so that lateral force borne by the tool is relieved, and the situation that the telescopic end of the hydraulic device is bent and damaged due to long-term lateral force is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of hydraulic presses, and in particular to a hydraulic press with a hydraulic plunger structure. Background Art

[0002] A hydraulic press with a hydraulic plunger structure is a mechanical device that uses liquid pressure to transmit force and perform work. This type of machine is widely used in industrial fields, such as metal processing, plastic molding, material testing, etc. Its main components include: a hydraulic pump, which is used to convert mechanical energy into liquid pressure energy; an oil tank, which stores hydraulic oil for circulation; a control valve, which adjusts the flow direction and flow rate of the hydraulic oil to control the movement of the plunger; a hydraulic cylinder (including a plunger), which is an actuator, in which the plunger acts on the load directly or through a connector; a seal, which ensures a good sealing effect between the various components in the hydraulic system; and pipes and joints, which connect the above components.

[0003] When the existing hydraulic press is in use, various mold heads are installed at the telescopic end (and plunger) of the hydraulic device to perform different processing on the workpiece. During the processing of the workpiece, if the force point of the plunger is not at its center, the plunger will be overloaded, which will cause the plunger to bend over time. The bending of the plunger will cause hydraulic oil leakage, so that the hydraulic press cannot work normally. This phenomenon is more serious when the mold uses a tool to cut hard workpieces. Summary of the invention

[0004] In order to overcome the disadvantage of the hydraulic press in the background art that the plunger may be overloaded when processing the workpiece, the present invention provides a hydraulic press with a hydraulic plunger structure.

[0005] The technical implementation scheme of the present invention is: a hydraulic press with a hydraulic plunger structure, comprising: Frame; A hydraulic device is arranged on the frame, and the hydraulic device is provided with a telescopic end; A top seat, fixedly connected to the telescopic end of the hydraulic device, the top seat is used to install the mold, the top seat is spherically connected with a top plate, the top plate is circumferentially spaced with spring telescopic rods, the spring telescopic rods are used to detect whether the upper side of the workpiece is horizontal; The base is fixedly connected to the frame, and the base is spherically connected with a bottom plate, and the bottom plate is used to place the workpiece. When the telescopic end of the hydraulic device is overloaded, the bottom plate and the top plate are rotated to adjust the position of the workpiece to adjust the force direction of the telescopic end of the hydraulic device.

[0006] More preferably, the base is provided with a plurality of first slide grooves; There are a plurality of first sliding plates, wherein the plurality of first sliding plates are respectively slidably connected to adjacent first sliding grooves; There are a plurality of first connecting rods which are ball-connected to the bottom plate, and the first sliding plate is ball-connected to the adjacent first connecting rods.

[0007] More preferably, the top seat is provided with a plurality of second slide grooves; There are a plurality of second sliding plates, wherein the plurality of second sliding plates are respectively slidably connected to adjacent second sliding grooves, the second sliding grooves are connected to the corresponding first sliding grooves, and both are filled with liquid; There are a plurality of second connecting rods which are ball-connected to the top plate, and the second sliding plate is ball-connected to the adjacent second connecting rods.

[0008] More preferably, it also includes: The locking rod is slidably connected to the base, a tension spring is arranged between the locking rod and the base, the bottom plate is provided with a groove, and the locking rod is limitedly matched with the groove.

[0009] More preferably, the base is slidably connected to a limiting column, a first spring is provided between the limiting column and the base, and the locking rod is provided with a limiting groove that cooperates with the limiting column.

[0010] More preferably, it also includes: There are a plurality of positioning members, the bottom plate is provided with a plurality of third sliding grooves, and the positioning members are slidably connected to adjacent third sliding grooves; The trigger member is provided with a fourth slide groove, the trigger member is slidably connected to the fourth slide groove, a plurality of the third slide grooves are connected to the fourth slide groove, and the third slide grooves and the fourth slide grooves are filled with liquid.

[0011] More preferably, a third sliding plate is slidably connected in the third sliding groove, and a second spring and a thin rope are provided between the third sliding plate and the adjacent positioning member.

[0012] More preferably, a partition is slidably connected in the fourth slide groove, a third spring is arranged between the partition and the trigger member, a fourth spring is arranged between the partition and the bottom plate, and the partition divides the fourth slide groove into two parts, both of which are connected to the third slide groove.

[0013] More preferably, the elastic coefficient of the fourth spring is greater than the elastic coefficient of the third spring.

[0014] More preferably, a collecting groove is provided on a side of the partition close to the trigger member, and when the trigger member abuts against the partition, the collecting groove is used to prevent the third spring from being damaged.

[0015] Compared with the prior art, the present invention has the following advantages: the present invention reduces the lateral force on the tool by causing the tool to deflect when cutting the workpiece, thereby preventing the telescopic end of the hydraulic device from being bent and damaged due to long-term lateral force, and causing the top plate and the bottom plate to rotate to adjust the position of the workpiece.

[0016] The bottom plate is limited by the locking rod, so that when the bottom plate does not need to rotate, the bottom plate cannot rotate, so as to meet the processing requirements of the workpiece.

[0017] The workpiece is fixed by a plurality of positioning members to prevent it from popping out when it is deflected by force, and the force of the positioning members on fixing the workpiece is gradually increased by the workpiece squeezing the trigger member, so that the greater the pressure on the workpiece, the greater the force of the positioning members on fixing the workpiece. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a three-dimensional structural cross-sectional view of the top seat and the base of the present invention; Figure 3 It is a three-dimensional structural cross-sectional view of the base and the bottom plate of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the second sliding plate and the second connecting rod of the present invention; Figure 5 It is a three-dimensional structural schematic diagram of the positioning member and the trigger member of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the positioning member and the third sliding plate of the present invention.

[0019] Among them, the above-mentioned drawings include the following figure marks: 1, frame, 2, hydraulic device, 3, top seat, 301, second slide groove, 4, top plate, 41, spring telescopic rod, 5, base, 501, first slide groove, 6, bottom plate, 601, third slide groove, 602, fourth slide groove, 7, first sliding plate, 8, first connecting rod, 9, second sliding plate, 10, second connecting rod, 11, locking rod, 12, limiting column, 13, positioning member, 14, trigger member, 15, third sliding plate, 16, partition. DETAILED DESCRIPTION

[0020] First of all, it should be pointed out that in the different described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosure contained in the entire description can be transferred to the same parts with the same reference numerals or the same component names. Selected positional descriptions in the description, such as top, bottom, lateral, etc., also refer to the directly described and shown figures and are transferred to the new positions in the case of a change in position.

[0021] A hydraulic press with a hydraulic plunger structure, such as Figure 1-Figure 6 As shown, it includes: a frame 1; a hydraulic device 2, which is arranged on the frame 1, and the hydraulic device 2 is provided with a telescopic end; a top seat 3, which is fixedly connected to the telescopic end of the hydraulic device 2, and the top seat 3 is used to install the mold, and the top seat 3 is ball-connected with a top plate 4, and the top plate 4 is circumferentially spaced with spring telescopic rods 41, and the spring telescopic rods 41 are used to detect whether the upper side of the workpiece is horizontal; a base 5, which is fixedly connected to the frame 1, and the base 5 is ball-connected with a bottom plate 6, and the bottom plate 6 is used to place the workpiece, and when the telescopic end of the hydraulic device 2 is overloaded, the bottom plate 6 and the top plate 4 are rotated to adjust the position of the workpiece to adjust the force direction of the telescopic end of the hydraulic device 2.

[0022] In the above scheme, the purpose is to reduce the eccentric load on the plunger to avoid the plunger from bending and prolong its service life. The hydraulic device 2 is an existing device, which contains a hydraulic pump, a control valve, a hydraulic cylinder (including a plunger), a seal, and pipes and joints. The telescopic end of the hydraulic device 2 is the plunger. The top seat 3 is fixed to the lower side of the telescopic end of the hydraulic device 2. The top seat 3 is provided with a plurality of threaded holes. The top seat 3 is connected to different molds by bolts. The lower side of the top seat 3 is ball-connected with a top plate 4. There are a plurality of spring telescopic rods 41, four of which are shown in the figure. The four spring telescopic rods 41 are used to detect whether the upper side of the workpiece is horizontal. When the spring telescopic rod 41 contacts the upper side of the workpiece, if the upper side of the workpiece is tilted, the upper side of the workpiece will squeeze the spring telescopic rod 41, so that the spring telescopic rod 41 drives the top plate 4 to swing. The base 5 is fixed to the lower part of the frame 1, and the upper side of the base 5 is ball-connected with a bottom plate 6.

[0023] Furthermore, the base 5 is provided with a plurality of first slide grooves 501; the first sliding plates 7 are provided with a plurality of first sliding plates 7, and the plurality of first sliding plates 7 are respectively slidably connected to adjacent first slide grooves 501; the first connecting rods 8 are provided with a plurality of first connecting rods 8, which are ball-connected to the bottom plate 6, and the first sliding plates 7 are ball-connected to adjacent first connecting rods 8.

[0024] In the above scheme, the bottom plate 6 is intended to be swung to adjust the position of the workpiece thereon. The base 5 is shown in the figure with four first slide grooves 501, the number of the first sliding plates 7 is the same as the number of the first slide grooves 501, the first connecting rod 8 is located on the upper side of the first sliding plate 7, and when the first sliding plate 7 moves, the bottom plate 6 is driven to swing through the first connecting rod 8, thereby adjusting the position of the workpiece thereon.

[0025] Furthermore, the top seat 3 is provided with a plurality of second slide grooves 301; the second sliding plates 9 are provided with a plurality of second sliding plates 9, which are respectively slidably connected to adjacent second slide grooves 301, the second slide grooves 301 are connected to the corresponding first slide grooves 501, and both are filled with liquid; the second connecting rods 10 are provided with a plurality of second connecting rods 10, which are ball-connected to the top plate 4, and the second sliding plates 9 are ball-connected to the adjacent second connecting rods 10.

[0026] In the above scheme, it is intended to detect whether the reaction force on the mold is along the axis of the plunger. As shown in the figure, there are four second slide grooves 301, which is the same as the number of the first slide grooves 501. The second slide grooves 301 on the same side correspond to the first slide grooves 501 on the opposite side, such as the second slide grooves 301 on the left side correspond to the first slide grooves 501 on the right side. The number of second sliding plates 9 is the same as that of the second slide grooves 301. The second connecting rod 10 is located on the upper side of the top plate 4. When the top plate 4 rotates, taking the left side lower than the right side as an example, the upper side of the workpiece is in a state of left lower than the right side. Because the right side of the workpiece is higher, the spring telescopic rod 41 on the right side contacts the workpiece before other spring telescopic rods 41. At this time, the upper side of the workpiece first contacts the spring telescopic rod 41 on the right side, and the workpiece presses the spring telescopic rod 41 on the right side upward to drive the top plate 4. The top plate 4 generates a counterclockwise rotation (in the direction of the front view), so that the top plate 4 is in a state of being higher on the right and lower on the left. The top plate 4 pushes the second connecting rod 10 on the right to move upward, and the second connecting rod 10 pushes the second sliding plate 9 to move upward. The second sliding plate 9 presses the liquid in the second slide groove 301 into the first slide groove 501 on the left. The increase of liquid in the first slide groove 501 pushes the first sliding plate 7 to move upward, and the first sliding plate 7 pushes the first connecting rod 8 to move upward. The first connecting rod 8 pushes the bottom plate 6 to tilt, so that the bottom plate 6 drives the workpiece to rotate clockwise (in the direction of the front view), so that the part of the workpiece in contact with the tool tends to be horizontal from the state of being lower on the left and higher on the right, so as to reduce the lateral force on the tool and avoid damage to the tool.

[0027] Furthermore, it also includes: a locking rod 11, which is slidably connected to the base 5, a tension spring is arranged between the locking rod 11 and the base 5, the bottom plate 6 is provided with a groove, and the locking rod 11 is limitedly matched with the groove; the base 5 is slidably connected to a limiting column 12, a first spring is arranged between the limiting column 12 and the base 5, and the locking rod 11 is provided with a limiting groove that is limitedly matched with the limiting column 12.

[0028] In the above solution, the purpose is to fix the bottom plate 6. The locking rod 11 is L-shaped, and the tension spring between the locking rod 11 and the base 5 is initially in a stored force state. When the locking rod 11 is not limited by the limiting column 12, the locking rod 11 moves backward under the action of the tension spring, thereby automatically limiting the base plate 6. The limiting column 12 is composed of a hemisphere and a cylinder. The first spring is initially in a stored force state, so that the limiting column 12 limits the locking rod 11. The resistance generated by the limiting column 12 on the locking rod 11 is greater than the pulling force of the tension spring on the locking rod 11, so that the locking rod 11 will not lock the base plate 6 due to the pulling of the tension spring when not subject to external force. When the base plate 6 is not required to rotate to reduce the lateral force exerted on the tool, the locking rod 11 is pushed backward, and the locking rod 11 squeezes the limiting column 12. The limiting column 12 moves and compresses the adjacent spring. When the limiting column 12 is separated from the limiting groove on the locking rod 11, the locking rod 11 moves backward under the action of the tension spring and is inserted into the groove of the base plate 6.

[0029] Furthermore, it also includes: a positioning member 13, which has a plurality of them, and the bottom plate 6 is provided with a plurality of third slide grooves 601, and the positioning member 13 is slidably connected to the adjacent third slide grooves 601; a trigger member 14, the bottom plate 6 is provided with a fourth slide groove 602, the trigger member 14 is slidably connected to the fourth slide groove 602, and the plurality of third slide grooves 601 are all connected to the fourth slide groove 602, and the third slide grooves 601 and the fourth slide grooves 602 are filled with liquid; a third sliding plate 15 is slidably connected in the third slide groove 601, and a second spring and a thin rope are provided between the third sliding plate 15 and the adjacent positioning member 13.

[0030] In the above scheme, the object to be processed is clamped automatically to improve the efficiency of processing the object. The positioning member 13 is composed of a round rod and a square rod. The square rod portion of the positioning member 13 is used to clamp the object to be processed. The square rod portion can change its shape as needed. There are four third slide grooves 601 in the figure. The round rod portion of the positioning member 13 is slidably connected to the adjacent third slide grooves 601. The figure shows a fourth slide groove 602, which can also be set to four, so that the fourth slide groove 602 corresponds to the third slide groove 601 to achieve independent control of each positioning member 13. The liquid in the third slide groove 601 and the fourth slide groove 602 are both hydraulic oils for transmission. The second spring is initially in a stored force state, and the thin rope is initially in a taut state. The thin rope is used to make the third slide groove The movable plate 15 drives the adjacent positioning member 13 to reset. When the workpiece is placed on the upper side of the trigger member 14, the workpiece squeezes the trigger member 14 to move downward, and the trigger member 14 presses the liquid in the fourth slide groove 602 into the third slide groove 601. The increase in liquid in the third slide groove 601 pushes the third sliding plate 15 to move toward the middle of the bottom plate 6. The third sliding plate 15 pushes the positioning member 13 to move through the second spring, and stops moving when the positioning member 13 contacts the workpiece. At this time, if the upper side of the trigger member 14 is still not aligned with the upper side of the bottom plate 6, the trigger member 14 drives the third sliding plate 15 to continue moving, and the third sliding plate 15 compresses the second spring.

[0031] Furthermore, a partition 16 is slidably connected in the fourth slide groove 602, a third spring is arranged between the partition 16 and the trigger member 14, a fourth spring is arranged between the partition 16 and the bottom plate 6, the partition 16 divides the fourth slide groove 602 into two parts, the two parts are connected to the third slide groove 601, the elastic coefficient of the fourth spring is greater than the elastic coefficient of the third spring, and a collecting groove is arranged on the side of the partition 16 close to the trigger member 14. When the trigger member 14 presses against the partition 16, the collecting groove is used to avoid damage to the third spring.

[0032] In the above scheme, it is intended to achieve rapid fixation of the workpiece by the positioning member 13 to improve the efficiency of the workpiece processing of the device. The elastic coefficient of the third spring is small, and the workpiece is placed on the trigger member 14 to compress the third spring so that the positioning member 13 fixes the workpiece. When the workpiece is subsequently cut by a tool, the tool applies a downward force to the workpiece, and the downward pressure of the workpiece on the trigger member 14 increases. At this time, the trigger member 14 contacts the separator 16, and the separator 16 moves downward and compresses the fourth spring. At this time, the separator 16 drives the third sliding plate 15 to continue to move, and the third sliding plate 15 compresses the second spring, so that the pressure of the positioning member 13 on the workpiece increases to enhance the fixation of the workpiece and prevent the workpiece from moving. The collection groove on the separator 16 is used to store the third spring to prevent the trigger member 14 from compressing the third spring to the extreme and then continuing to squeeze to cause damage to the third spring. When there is a collection groove, when the third spring is compressed to the upper side and is aligned with the upper side of the separator 16, the trigger member 14 can directly transmit to the separator 16.

[0033] The present invention provides a thought and method. There are many methods and ways to implement the technical solution. The above is only the preferred implementation mode of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention. All components not specified in this embodiment can be implemented by existing technologies.

Claims

1. A hydraulic press with a hydraulic plunger structure, characterized in that it includes: Frame (1); A hydraulic device (2) is arranged on the frame (1), and the hydraulic device (2) is provided with a telescopic end; A top seat (3) is fixedly connected to the telescopic end of the hydraulic device (2), the top seat (3) is used to install the mold, the top seat (3) is spherically connected to a top plate (4), the top plate (4) is provided with spring telescopic rods (41) at intervals in the circumferential direction, and the spring telescopic rods (41) are used to detect whether the upper side of the workpiece is horizontal; A base (5) is fixedly connected to the frame (1), and the base (5) is spherically connected to a bottom plate (6). The bottom plate (6) is used to place a workpiece. When the telescopic end of the hydraulic device (2) is unbalanced, the bottom plate (6) and the top plate (4) are rotated to adjust the position of the workpiece so as to adjust the force direction of the telescopic end of the hydraulic device (2).

2. A hydraulic press with a hydraulic plunger structure according to claim 1, characterized in that: The base (5) is provided with a plurality of first sliding grooves (501); A plurality of first sliding plates (7), wherein the plurality of first sliding plates (7) are respectively slidably connected to adjacent first sliding grooves (501); A plurality of first connecting rods (8) are ball-connected to the bottom plate (6), and the first sliding plate (7) is ball-connected to the adjacent first connecting rods (8).

3. A hydraulic press with a hydraulic plunger structure according to claim 2, characterized in that: The top seat (3) is provided with a plurality of second slide grooves (301); A plurality of second sliding plates (9), wherein the plurality of second sliding plates (9) are respectively slidably connected to adjacent second sliding grooves (301), the second sliding grooves (301) are connected to the corresponding first sliding grooves (501), and both are filled with liquid; The second connecting rods (10) are in plurality and are ball-connected to the top plate (4); the second sliding plate (9) is ball-connected to adjacent second connecting rods (10).

4. A hydraulic press with a hydraulic plunger structure according to claim 1, characterized in that: Also included are: A locking rod (11) is slidably connected to the base (5); a tension spring is provided between the locking rod (11) and the base (5); the bottom plate (6) is provided with a groove; the locking rod (11) is limitedly engaged with the groove.

5. A hydraulic press with a hydraulic plunger structure according to claim 4, characterized in that: The base (5) is slidably connected to a limiting column (12), a first spring is provided between the limiting column (12) and the base (5), and the locking rod (11) is provided with a limiting groove that cooperates with the limiting column (12) in a limiting manner.

6. A hydraulic press with a hydraulic plunger structure according to claim 1, characterized in that: Also included are: There are a plurality of positioning members (13), the bottom plate (6) is provided with a plurality of third sliding grooves (601), and the positioning members (13) are slidably connected to adjacent third sliding grooves (601); The trigger member (14) is provided with a fourth slide groove (602) on the bottom plate (6), the trigger member (14) is slidably connected to the fourth slide groove (602), a plurality of the third slide grooves (601) are connected to the fourth slide groove (602), and the third slide grooves (601) and the fourth slide grooves (602) are filled with liquid.

7. A hydraulic press with a hydraulic plunger structure according to claim 6, characterized in that: A third sliding plate (15) is slidably connected in the third sliding groove (601), and a second spring and a thin rope are provided between the third sliding plate (15) and the adjacent positioning member (13).

8. A hydraulic press with a hydraulic plunger structure according to claim 7, characterized in that: A partition (16) is slidably connected in the fourth slide groove (602), a third spring is arranged between the partition (16) and the trigger member (14), a fourth spring is arranged between the partition (16) and the bottom plate (6), and the partition (16) divides the fourth slide groove (602) into two parts, an upper part and an lower part, both of which are connected to the third slide groove (601).

9. A hydraulic press with a hydraulic plunger structure according to claim 8, characterized in that: The elastic coefficient of the fourth spring is greater than the elastic coefficient of the third spring.

10. A hydraulic press with a hydraulic plunger structure according to claim 8, characterized in that: A collecting groove is provided on one side of the partition (16) close to the trigger (14); when the trigger (14) abuts against the partition (16), the collecting groove is used to prevent the third spring from being damaged.

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