CN116749579A - A high-precision automatic medicine-pressing hydraulic press hydraulic system - Google Patents
A high-precision automatic medicine-pressing hydraulic press hydraulic system Download PDFInfo
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- CN116749579A CN116749579A CN202211487084.7A CN202211487084A CN116749579A CN 116749579 A CN116749579 A CN 116749579A CN 202211487084 A CN202211487084 A CN 202211487084A CN 116749579 A CN116749579 A CN 116749579A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/04—Frames; Guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/04—Frames; Guides
- B30B15/041—Guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/04—Frames; Guides
- B30B15/044—Means preventing deflection of the frame, especially for C-frames
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/16—Control arrangements for fluid-driven presses
- B30B15/166—Electrical control arrangements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Presses (AREA)
Abstract
本发明公开了一种高精度自动压药液压机液压系统，涉及液压机技术领域，包括机身、油缸、手动与自动调整限程机构、行程限位、液压系统、电气控制系统、安全防护系统和辅助部件，所述机身包括上横梁、下横梁、上动梁、下动梁、中间梁和立柱、拉杆，所述立柱包括左立柱和右立柱，所述左立柱和右立柱均固定安装在下横梁和上横梁之间，所述中间梁固定贯穿左立柱和右立柱，所述中间梁位于下横梁和上横梁之间，所述下横梁上端与拉杆下端固定连接，所述拉杆设置有两个，两个所述拉杆呈左右对称分布，所述拉杆从下到上依次活动贯穿中间梁和上横梁。本发明通过闭环控制使大吨位的上动梁和下动梁行走的过程中更平稳、精准，安装便捷，安全性高。
The invention discloses a hydraulic system of a high-precision automatic medicine pressing hydraulic press, which relates to the technical field of hydraulic presses and includes a fuselage, an oil cylinder, a manual and automatic adjustment range limiting mechanism, a stroke limiter, a hydraulic system, an electrical control system, a safety protection system and auxiliary components, the fuselage includes an upper beam, a lower beam, an upper moving beam, a lower moving beam, a middle beam and a column, and a tie rod. The column includes a left column and a right column, and the left column and the right column are both fixedly installed on the lower beam. and the upper crossbeam. The middle beam is fixedly penetrated through the left upright column and the right upright column. The middle beam is located between the lower crossbeam and the upper crossbeam. The upper end of the lower crossbeam is fixedly connected to the lower end of the tie rod. There are two tie rods. The two tie rods are symmetrically distributed from left to right, and the tie rods move through the middle beam and the upper cross beam in sequence from bottom to top. The invention uses closed-loop control to make the large-tonnage upper and lower moving beams move more smoothly and accurately, and is easy to install and highly safe.
Description
Technical Field
The invention relates to the technical field of hydraulic presses, in particular to a hydraulic system of a high-precision automatic liquid medicine pressing press.
Background
At present, the powder molding is finished by adopting a single-direction upward pressing or downward pressing, five-beam four-column hydraulic machine, and the hydraulic machine has the following common defects:
1. the unidirectional pressing hydraulic press has high possibility of uneven density of formed workpieces, causes scrapping, and is complex for corresponding mold development, maintenance and the like.
2. The five-beam four-column hydraulic machine has weaker overall precision, stability and rigidity than the frame-type hydraulic machine, and particularly the large-tonnage five-beam four-column hydraulic machine is more difficult to manufacture than the frame-type hydraulic machine, and the manufacturing cost is relatively increased.
3. The beams cannot be positioned first when the five-beam four-column hydraulic press is installed, and the upright post is installed through the five beams, so that the sliding blocks with higher matching precision are quite difficult. Two upright posts are inserted first to be positioned first, then the beam and the upper beam are moved, so that the hoisting is difficult to be ensured to be completely horizontal, and the positioning of four upright posts is also required to be completed simultaneously.
4. The manual distance limiting device is adjusted according to experience of operators, so that the equal height among the distance limiting columns is difficult to ensure, and gaps among the press fit cannot be avoided. The dangerous coefficient during the medicine pressing can not be reduced, and the rejection rate is higher. And the requirement of automatic production cannot be met.
The defects cause unnecessary resource waste, the production efficiency is low, and the installation is difficult, so we propose a high-precision automatic liquid medicine pressing hydraulic system.
Disclosure of Invention
The invention mainly aims to provide a high-precision automatic liquid medicine pressing hydraulic system which is used for forming powder with high tonnage, high precision and higher workpiece density requirements, reduces resource waste, reduces installation difficulty, improves precision, increases automation degree, reduces danger coefficient and can effectively solve the problems in the background technology.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the utility model provides a high accuracy automatic pressure liquid medicine hydraulic press hydraulic system, includes fuselage, hydro-cylinder, manual and automatic adjustment limit mechanism, stroke spacing, hydraulic system, electrical control system, safety protection system and auxiliary component, the fuselage includes entablature, underbeam, upper movable beam, movable beam down, intermediate beam and stand, pull rod, the stand includes left stand and right stand, left stand and right stand are all fixed mounting between underbeam and entablature, the intermediate beam is fixed to run through left stand and right stand, the intermediate beam is located between underbeam and the entablature, underbeam upper end and pull rod lower extreme fixed connection, the pull rod is provided with two, two the pull rod is bilateral symmetry and distributes, the pull rod is movable from bottom to top runs through intermediate beam and entablature in proper order, pull rod surface threaded connection has lock nut, the lower end face of the lock nut is tightly contacted with the upper end face of the upper beam, the upper end of the upper beam is fixedly connected with the lower end of the oil cylinder, the output end of the oil cylinder is in transmission connection with an upper movable beam and a lower movable beam, the upper movable beam is positioned between the upper beam and the middle beam, the lower movable beam is positioned between the middle beam and the lower beam, the upper end face and the lower end face of the middle beam are both provided with protective base plates, the manual and automatic adjustment limit mechanism comprises an explosion-proof motor, a guide rod and a limit plate, the electric control system comprises an explosion-proof motor, an electric control system, an electric pump, a servo valve, a driving wheel, a guide rod, a limit disc, a limit plate, a bearing, a screw rod, a limit collision block, a limit disc, a driving wheel, a limit plate, an electric control system, a driving wheel, a guide rod, a limit plate and a driving wheel, wherein the encoder is arranged at the output end of the explosion-proof motor, the bearing and the screw rod are arranged at the output end of the explosion-proof motor, the limit collision block is arranged at the lower end of the screw rod, the limit disc is arranged on the outer surface of the screw rod, the driving wheel is sleeved on the outer surface of the screw rod, the guide rod is in penetrating and movable connection with the limit disc, the limit plate is arranged at the outer side of the limit collision block, and the electric control system comprises the electric pump, the servo valve and the electric control system, the motion controller and the valve body are formed, the electric control system enables the walking process of the upper moving beam and the lower moving beam with large tonnage to be stable and accurate through closed-loop control, the hydraulic system comprises an integrated oil tank and a hydraulic oil way, the safety protection system comprises a safety limiting device, the safety limiting device and the action process of the oil cylinder have an interlocking function, the auxiliary component comprises an equal-height block, and the equal-height block is used for manually adjusting the height.
Preferably, the upper cross beam, the lower cross beam, the upper movable beam, the lower movable beam and the middle beam form a five-beam frame structure.
Preferably, the upper moving beam and the lower moving beam are both connected with guide rails through sliding blocks in a sliding manner, the guide rails adopt four-corner octahedral type, the guide distance is prolonged, and the movement precision of the sliding blocks is improved mechanically.
Preferably, a push-pull screw is arranged on the sliding block and used for improving the unbalanced load resistance and further improving the mechanical precision of the equipment.
Preferably, the valve body is integrated by adopting a cone valve, and the container oil tank is arranged in the power room.
Preferably, the manual and automatic adjustment limit mechanism is driven by an explosion-proof motor, a screw rod is used for adjusting, an actual position is detected through an encoder, current detected in real time by the explosion-proof motor is fed back to a PLC (programmable logic controller) for data analysis, the PLC performs internal processing, adjustment synchronization is guaranteed, related parameters can be displayed and set on a touch screen, the display precision of a positioning position is 0.01mm, and a height adjustment error is not more than 0.05mm.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the large-tonnage upper movable beam and lower movable beam are enabled to be more stable and accurate in the walking process through closed-loop control, stepless and adjustable is realized, and the integral automatic precision is improved.
2. In the invention, the mechanical precision and stability of the whole machine are improved by one grade through the five-beam frame type machine body, the installation is simple and convenient, the working efficiency of installation personnel is improved, the risk coefficient is reduced, and the unnecessary resource waste is reduced.
3. According to the invention, the limit is realized through the manual and automatic adjustment limit mechanism, so that the original manual adjustment is maintained, the digital control can be finished, the intelligent degree of the automatic medicine pressing system of the oil press is improved, and the harm to operators caused by the working procedure with higher danger coefficient is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of a hydraulic system of a high-precision automatic liquid pressing hydraulic machine according to the present invention;
FIG. 2 is a schematic diagram of the overall structure of the manual and automatic adjustment limit mechanism;
fig. 3 is a hydraulic schematic of a hydraulic system.
In the figure: 1. a pull rod; 2. an oil cylinder; 3. a lock nut; 4. an upper cross beam; 5. a right column; 6. an upper movable beam; 7. a left upright post; 8. a protective backing plate; 9. a middle beam; 10. a lower movable beam; 11. a lower cross beam; 21. an explosion-proof motor; 22. an encoder; 23. a bearing; 24. a guide rod; 25. a limit disc; 26. a driving wheel; 27. a screw rod; 28. a limit bump; 29. and a limiting plate.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
The technical scheme of the invention is further described below with reference to the accompanying drawings.
Example 1
1-3, the hydraulic system comprises a machine body, an oil cylinder 2, a manual and automatic adjustment limit mechanism, a stroke limit, a hydraulic system, an electric control system, a safety protection system and auxiliary components, wherein the machine body comprises an upper cross beam 4, a lower cross beam 11, an upper movable beam 6, a lower movable beam 10, a middle beam 9, an upright post and a pull rod 1, the upright post comprises a left upright post 7 and a right upright post 5, the left upright post 7 and the right upright post 5 are fixedly arranged between the lower cross beam 11 and the upper cross beam 4, the middle beam 9 fixedly penetrates through the left upright post 7 and the right upright post 5, the middle beam 9 is positioned between the lower cross beam 11 and the upper cross beam 4, the upper end of the lower cross beam 11 is fixedly connected with the lower end of the pull rod 1, the pull rod 1 is provided with two pull rods, the two pull rods 1 are symmetrically distributed left and right, the pull rod 1 sequentially penetrates through the middle beam 9 and the upper cross beam 4 from bottom to top, the external surface of the pull rod 1 is in threaded connection with a lock nut 3, the lower end surface of the lock nut 3 is tightly contacted with the upper end surface of an upper beam 4, the upper end of the upper beam 4 is fixedly connected with the lower end of an oil cylinder 2, the output end of the oil cylinder 2 is in transmission connection with an upper moving beam 6 and a lower moving beam 10, the upper moving beam 6 is positioned between the upper beam 4 and a middle beam 9, the lower moving beam 10 is positioned between the middle beam 9 and a lower beam 11, the upper end surface and the lower end surface of the middle beam 9 are both provided with a protective backing plate 8, the manual and automatic adjustment limit mechanism comprises an explosion-proof motor 21, a guide rod 24 and a limit plate 29, the output end of the explosion-proof motor 21 is provided with an encoder 22, the output end of the explosion-proof motor 21 is provided with a bearing 23 and a screw rod 27, the lower end of the screw rod 27 is provided with a limited-range bump 28, the external surface of the screw rod 27 is provided with a limited-range disk 25, the screw rod 27 is sleeved with the driving wheel 26 on the outer surface, the guide rod 24 is in penetrating and movable connection with the limit disc 25, the limit plate 29 is located on the outer side of the limit collision block 28, the electric control system is composed of an electronic pump, a servo valve, a motion controller and a valve body, the electric control system enables the traveling process of the upper moving beam 6 and the lower moving beam 10 with large tonnage to be stable and accurate through closed loop control, the hydraulic system comprises an oil container tank and a hydraulic oil way, the safety protection system comprises a safety limit device, the safety limit device has an interlocking function with the action process of the oil cylinder 2, the auxiliary part comprises an equal-height block, and the equal-height block is used for manually adjusting the height.
Further, the upper beam 4, the lower beam 11, the upper movable beam 6, the lower movable beam 10 and the middle beam 9 form a five-beam frame structure.
Furthermore, the upper moving beam 6 and the lower moving beam 10 are both connected with guide rails through sliding blocks, and the guide rails adopt a 'quadrangle octahedral' shape, so that the guiding distance is increased, and the movement precision of the sliding blocks is improved mechanically.
Further, a push-pull screw is arranged on the sliding block and used for improving the unbalanced load resistance and further improving the mechanical precision of the equipment.
Further, the valve body is integrated by adopting a cone valve, and the container oil tank is arranged in a power room.
Further, the manual and automatic adjustment limit mechanism is driven by the explosion-proof motor 21, the screw rod 27 is used for adjusting, the actual position is detected through the encoder 22, the current detected by the explosion-proof motor 21 in real time is fed back to the PLC for data analysis, the PLC performs internal processing, adjustment synchronization is guaranteed, related parameters can be displayed and set on the touch screen, the display precision of the positioning position is 0.01mm, and the height adjustment error is not more than 0.05mm.
In the embodiment, the machine body comprises an upper cross beam 4, a lower cross beam 11, an upper movable beam 6, a lower movable beam 10, a middle beam 9, an upright post, a pull rod 1, the upper cross beam 4 and the middle beam 9, wherein the pull rod 1 and the tightening lock nut 3 are used for carrying out overpressure pre-tightening, the upper movable beam 6 and the lower movable beam 10 are matched to form a five-beam frame structure, and when any movable Liang Shandong is selected through hydraulic driving control, the strength of the whole machine can be ensured, and the integral rigidity is also improved; the sliding block adopts a square octahedral guide rail, so that the guiding distance is increased, and the movement precision of the sliding block is mechanically improved; the sliding block is pushed and pulled by the screw to adjust, so that the adjustment is convenient, the unbalanced load resistance is improved, and the mechanical precision of the equipment is further improved; when the powder is pressed, the upper moving beam and the lower moving beam simultaneously operate to ensure that the powder is stressed uniformly and the density of the finished product is more uniform.
The electrical control system of the oil press consists of an electronic pump, a servo valve, a motion controller and other elements, the running process of the large-tonnage movable beam is smoother and more accurate through closed-loop control, and all the parameters such as pressure, speed, position and the like can be displayed and set in a touch screen, so that stepless adjustment is realized; and an advanced cone valve integrated valve body is adopted, and an integrated oil tank is arranged in a power room, so that the installation and maintenance are more convenient and simpler.
The manual and automatic adjustment limit mechanism consists of an explosion-proof motor 21, a screw rod 27, an encoder 22 and the like, can complete limit in single (double) direction pressing, is used for guaranteeing the forming precision and safety of products, and still has enough rigidity and precision under the effect of 1.2 times of the maximum nominal force; the manual and automatic adjustment range limiting mechanism is driven by the explosion-proof motor 21, the screw rod 27 is used for adjusting, the actual position is detected through the encoder 22, the current detected by the explosion-proof motor 21 in real time is fed back to the PLC for data analysis, the PLC is used for internal processing, adjustment synchronization is guaranteed, related parameters can be displayed and set on the touch screen, the display precision of the positioning position is 0.01mm, the height adjustment error is not more than 0.05mm, meanwhile, the safety limiting device has an interlocking function with other action processes of the oil press, and the safety of integral operation is guaranteed.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A hydraulic system of a high-precision automatic liquid medicine pressing hydraulic machine is characterized in that: including fuselage, hydro-cylinder (2), manual and automatic adjustment limit mechanism, stroke spacing, hydraulic system, electrical control system, safety protection system and auxiliary component, the fuselage includes entablature (4), underbeam (11), upper movable beam (6), underbeam (10), intermediate beam (9) and stand, pull rod (1), the stand includes left stand (7) and right stand (5), left stand (7) and right stand (5) all fixed mounting are between underbeam (11) and entablature (4), intermediate beam (9) are fixed run through left stand (7) and right stand (5), intermediate beam (9) are located between underbeam (11) and entablature (4), underbeam (11) upper end and pull rod (1) lower extreme fixed connection, pull rod (1) are provided with two, and two pull rod (1) are bilateral symmetry and distribute, pull rod (1) are movable intermediate beam (9) and entablature (4) from the lower extreme in proper order, pull rod (1) are connected with down end face (4) and lock nut (3) are connected with upper end face (4), the oil cylinder (2) output end transmission is connected with an upper movable beam (6) and a lower movable beam (10), the upper movable beam (6) is positioned between an upper cross beam (4) and a middle beam (9), the lower movable beam (10) is positioned between the middle beam (9) and a lower cross beam (11), the upper end surface and the lower end surface of the middle beam (9) are both provided with a protection base plate (8), the manual and automatic adjustment range limiting mechanism comprises an explosion-proof motor (21), a guide rod (24) and a limiting plate (29), the output end of the explosion-proof motor (21) is provided with an encoder (22), the output end of the explosion-proof motor (21) is provided with a bearing (23) and a screw rod (27), the lower end of the screw rod (27) is provided with a range-limiting bump (28), the outer surface of the screw rod (27) is provided with a limit disc (25), the outer surface of the screw rod (27) is sleeved with a driving wheel (26), the guide rod (24) is in penetrating and movable connection with the limit disc (25), the limit plate (29) is positioned at the outer side of the limit collision block (28), the electric control system consists of an electronic pump, a servo valve, a motion controller and a valve body, the electric control system enables the running process of the upper moving beam (6) and the lower moving beam (10) with large tonnage to be smoother and more accurate through closed loop control, the hydraulic system comprises an oil container tank and a hydraulic oil way, the safety protection system comprises a safety limiting device, the safety limiting device has an interlocking function with the action process of the oil cylinder (2), and the auxiliary component comprises an equal-height block which is used for manually adjusting the height.
2. The hydraulic system of the high-precision automatic liquid pressing hydraulic machine according to claim 1, wherein: the upper cross beam (4), the lower cross beam (11), the upper movable beam (6), the lower movable beam (10) and the middle beam (9) form a five-beam frame structure.
3. The hydraulic system of the high-precision automatic liquid pressing hydraulic machine according to claim 1, wherein: the upper movable beam (6) and the lower movable beam (10) are both connected with guide rails through sliding blocks, the guide rails adopt four-corner octahedral shapes, the guide distance is prolonged, and the movement precision of the sliding blocks is improved mechanically.
4. A hydraulic system for high precision automatic hydraulic fluid pressure machine according to claim 3, wherein: the sliding block is provided with a push-pull screw for improving the unbalanced load resistance and further improving the mechanical precision of the equipment.
5. The hydraulic system of the high-precision automatic liquid pressing hydraulic machine according to claim 1, wherein: the valve body is integrated by adopting a cone valve, and the container oil tank is arranged in a power room.
6. The hydraulic system of the high-precision automatic liquid pressing hydraulic machine according to claim 1, wherein: the manual and automatic adjustment limit mechanism is driven by an explosion-proof motor (21), a screw rod (27) is used for adjusting, an actual position is detected through an encoder (22), current detected in real time by the explosion-proof motor (21) is fed back to the PLC for data analysis, the PLC performs internal processing, adjustment synchronization is guaranteed, related parameters can be displayed and set on a touch screen, the display precision of a positioning position is 0.01mm, and a height adjustment error is not more than 0.05mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211487084.7A CN116749579A (en) | 2022-11-24 | 2022-11-24 | A high-precision automatic medicine-pressing hydraulic press hydraulic system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211487084.7A CN116749579A (en) | 2022-11-24 | 2022-11-24 | A high-precision automatic medicine-pressing hydraulic press hydraulic system |
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| CN116749579A true CN116749579A (en) | 2023-09-15 |
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| CN202211487084.7A Pending CN116749579A (en) | 2022-11-24 | 2022-11-24 | A high-precision automatic medicine-pressing hydraulic press hydraulic system |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6312629B1 (en) * | 2000-02-04 | 2001-11-06 | The United States Of America As Represented By The Secretary Of The Navy | Apparatus and method for pressing powders |
| CN203157195U (en) * | 2013-01-29 | 2013-08-28 | 合肥海德数控液压设备有限公司 | Five-beam four-column synchronous explosive-pressing hydraulic machine |
| CN109483938A (en) * | 2018-12-04 | 2019-03-19 | 合肥合锻智能制造股份有限公司 | A kind of five beam four-column type pressing hydraulic machines |
| CN209409409U (en) * | 2018-10-26 | 2019-09-20 | 扬州精善达伺服成形装备有限公司 | Hydraulic press with the accurate regulatory function of stroke limits column device |
| CN210292999U (en) * | 2019-08-06 | 2020-04-10 | 合肥海得智能科技有限公司 | Explosive pressing explosion-proof hydraulic machine special for perforating bullet |
| CN219114878U (en) * | 2022-11-24 | 2023-06-02 | 合肥海德数控液压设备有限公司 | High-precision hydraulic system of automatic liquid medicine pressing hydraulic machine |
-
2022
- 2022-11-24 CN CN202211487084.7A patent/CN116749579A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6312629B1 (en) * | 2000-02-04 | 2001-11-06 | The United States Of America As Represented By The Secretary Of The Navy | Apparatus and method for pressing powders |
| CN203157195U (en) * | 2013-01-29 | 2013-08-28 | 合肥海德数控液压设备有限公司 | Five-beam four-column synchronous explosive-pressing hydraulic machine |
| CN209409409U (en) * | 2018-10-26 | 2019-09-20 | 扬州精善达伺服成形装备有限公司 | Hydraulic press with the accurate regulatory function of stroke limits column device |
| CN109483938A (en) * | 2018-12-04 | 2019-03-19 | 合肥合锻智能制造股份有限公司 | A kind of five beam four-column type pressing hydraulic machines |
| CN210292999U (en) * | 2019-08-06 | 2020-04-10 | 合肥海得智能科技有限公司 | Explosive pressing explosion-proof hydraulic machine special for perforating bullet |
| CN219114878U (en) * | 2022-11-24 | 2023-06-02 | 合肥海德数控液压设备有限公司 | High-precision hydraulic system of automatic liquid medicine pressing hydraulic machine |
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