CN111231394A - Pressing method of four-column hydraulic press - Google Patents

Abstract

The invention discloses a pressing method of a four-column hydraulic machine, which relates to the technical field of hydraulic machines, and particularly relates to a pressing method of a four-column hydraulic machine. According to the pressing method of the four-column hydraulic press, the system overall control does not contain a proportional servo valve or a proportional pump link, the servo-driven hydraulic press has the advantages of energy conservation, low noise, small temperature rise, good flexibility, high efficiency, convenience in maintenance and the like, and the servo-driven hydraulic press can save electricity by 30-70% compared with the traditional hydraulic press according to different processing technologies and production beats.

Description

Pressing method of four-column hydraulic press

Technical Field

The invention relates to the technical field of hydraulic presses, in particular to a pressing method of a four-column hydraulic press.

Background

The hydraulic machine is a machine which takes liquid as a working medium and is manufactured according to the Pascal principle and used for transmitting energy to realize various processes, generally consists of a local machine, a power system and a hydraulic control system, and is classified into a valve hydraulic machine, a liquid hydraulic machine and an engineering hydraulic machine; a hydraulic press is a machine for processing products such as metal, plastic, rubber, wood, powder, etc. using hydrostatic pressure, and is commonly used in pressing and press forming processes, such as: the principle of the forging press is that machines which are manufactured by using the Pascal law and are driven by using liquid pressure intensity are various, and certainly, the machines have various purposes according to the requirements, such as an oil press and a hydraulic press, the total pressure generated by the hydraulic press is large, and the hydraulic press is commonly used for forging and stamping, and the forging hydraulic press is divided into a die forging hydraulic press and a free forging hydraulic press.

However, the existing hydraulic machine has poor buffering performance in the use process, and the hydraulic bar is easy to generate large impact force on the workbench and the base when contacting with the workbench, so that the workbench is damaged, and the use requirements of people can not be well met.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a pressing method of a four-column hydraulic press, which solves the problems that the hydraulic press provided in the background art has poor buffering performance in the use process, and a large impact force is easily generated on a workbench and a base when a hydraulic bar is contacted with the workbench, so that the lower workbench is damaged, the use requirements of people cannot be well met, and the like.

In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides a suppression method of four post hydraulic presses, includes supporting pedestal and hydraulic pressure mechanism, the top of supporting pedestal is provided with main body frame, and main body frame's top middle part is provided with the processing base, the top of processing base is provided with hydraulic pressure mechanism, hydraulic pressure mechanism includes hydraulic pressure post, fixed cover, installation panel, light filling lamp, sliding sleeve, guide post and pushes down the panel, and the middle part of hydraulic pressure post is provided with fixed cover, the place ahead of fixed cover is provided with the light filling lamp, the below of hydraulic pressure post is provided with the installation panel, and the below of installation panel is provided with and pushes down the panel, the sliding sleeve all is provided with inside the left and right sides both ends of pushing down the panel, and the inside of sliding sleeve is provided with the.

Optionally, the support base includes a base frame, fixing rivets, support blocks and base support legs, the fixing rivets are arranged inside the base frame, the support blocks are arranged below the left end and the right end of the base frame, and the base support legs are arranged below the support blocks.

Optionally, the base frame is connected to the lower end of the main body frame by fixing rivets, and the support blocks and the base support legs are symmetrical with respect to a central axis of the base frame.

Optionally, the main body frame comprises a main body shell, a movable door, a connecting hinge, a lifting handle, a pressure-bearing panel, a connecting column, a connecting screw, a supporting lath and a top plate, the movable door is arranged at the left end and the right end of the main body shell, the connecting hinge is arranged at the rear end of the movable door, the lifting handle is arranged at the front end of the movable door, the pressure-bearing panel is arranged above the main body shell, the connecting column is arranged above the left end and the right end of the pressure-bearing panel, the connecting screw is arranged inside the connecting column, the supporting lath is arranged above the connecting screw, and the top plate is arranged above the supporting lath.

Optionally, the movable doors are symmetrical about a central axis of the main body housing, and the movable doors are connected with the main body housing through connecting hinges.

Optionally, the pressure-bearing panel and the connecting column are welded, and the supporting lath is connected with the connecting column through a connecting screw.

Optionally, the processing base includes operation platform, button groove, links up panel, locking screw, processing platform, operation platform's front end is provided with the button groove, and operation platform's top is provided with and links up the panel, both ends all are provided with locking screw around linking up the panel, and the top that links up the panel is provided with the processing platform.

Optionally, the button grooves are equidistantly distributed at the front end of the operating platform, the connecting panel is tightly attached to the operating platform, and the connecting panel is connected with the operating platform through the locking screws.

Optionally, the central axis of the hydraulic column coincides with the central axis of the pressing panel, and the mounting panel is tightly attached to the pressing panel.

Optionally, the specific operation steps are as follows:

(1) check before boot as follows: whether each travel switch, the limit switch and the limit stop iron are sensitive or not, the die or the press fitting clamping fixture are fixed reliably, each button (or wrench) of the electric control cabinet is placed at a non-working position, whether the handle, the knob and the button are damaged or not is checked, and whether main parts, components and fasteners are firmly checked for abnormal loosening or not is checked through electrical grounding or not.

(2) The oil level of the inspection equipment is not lower than the lower limit of the oil level indication, the outer surfaces of the upright post and the plunger are kept clean, and engine oil is injected firstly during each operation.

(3) The sundries on the working table surface, the die or the press-fitting clamping fixture are removed, the working pressure and the slide block stroke are adjusted, the empty vehicle runs for 2 to 3 minutes, the machine tool runs without abnormal sound, vibration, temperature rise, smell, smoke and the like, all the parts are normal, and the machine tool can start to work.

(4) When the workpiece is corrected or pressed, the workpiece is placed in the center of the upper sliding block, the workpiece is not biased, the pressure head is required to be slowly close to the workpiece, and the workpiece is prevented from being forced to enter and exit. Before starting up each shift, after pressure testing, whether the mold cracks or not should be checked.

The invention provides a pressing method of a four-column hydraulic press, which has the following beneficial effects:

1. the invention forms the supporting base of the device by the matching of the base frame, the fixing rivet, the supporting block and the base support leg, and the whole device is fixed and supported by the base frame, so as to keep the stability of the equipment in the using process. Compared with the traditional hydraulic press, the energy-saving effect is remarkable, and the servo drive hydraulic press can save electricity by 30-70% compared with the traditional hydraulic press according to different processing technologies and production beats.

2. The processing base of the device is formed by matching the operating platform, the button groove, the connecting panel, the locking screw and the processing platform, an internal gear pump or a high-performance vane pump is generally adopted as an oil pump of a servo driving hydraulic machine, an axial plunger pump is generally adopted as a traditional hydraulic machine, and the noise of the internal gear pump or the vane pump is 5 dB-10 dB lower than that of the axial plunger pump under the same flow and pressure; the motor runs at rated speed when the servo drive hydraulic machine is pressed and returned, and the emission noise of the servo drive hydraulic machine is 5 dB-10 dB lower than that of the traditional hydraulic machine.

3. The invention forms the hydraulic mechanism of the device by the cooperation of the hydraulic column, the fixed sleeve, the mounting panel, the light supplement lamp, the sliding sleeve, the guide column and the pressing panel, the pressure, the speed and the position of the servo drive hydraulic machine are controlled by full closed loop digital control, the degree of automation is high, the precision is good, in addition, the pressure and the speed can be controlled by programming, various process requirements can be met, remote automatic control can also be realized, the speed of the servo control hydraulic machine can be greatly improved by proper acceleration and deceleration control and energy optimization, the working beat is improved by a plurality of times compared with the traditional hydraulic machine, and the working beat can reach 10/min-15/min.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a left side view of the present invention;

FIG. 3 is a schematic diagram of the right-view structure of the present invention;

FIG. 4 is a schematic view of a front view half-section structure of the present invention;

fig. 5 is an enlarged schematic view of the structure at a in fig. 1 according to the present invention.

In the figure: 1. a support base; 101. a base frame; 102. fixing the rivet; 103. a support block; 104. a base support leg; 2. a main body frame; 201. a main body housing; 202. a movable door; 203. connecting a hinge; 204. lifting the handle; 205. a pressure-bearing panel; 206. connecting the column; 207. a connecting screw; 208. a support panel; 209. a top plate; 3. processing a base; 301. an operating platform; 302. a button slot; 303. joining the panels; 304. locking screws; 305. a processing table; 4. a hydraulic mechanism; 401. a hydraulic column; 402. fixing a sleeve; 403. installing a panel; 404. a light supplement lamp; 405. a sliding sleeve; 406. a guide post; 407. the panel is pressed down.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," 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 is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 5, the present invention provides a technical solution: a pressing method of a four-column hydraulic machine comprises a supporting base 1 and a hydraulic mechanism 4, wherein a main body frame 2 is arranged above the supporting base 1, a processing base 3 is arranged in the middle of the upper portion of the main body frame 2, the supporting base 1 comprises a base frame 101, fixing rivets 102, supporting blocks 103 and base supporting feet 104, the fixing rivets 102 are arranged inside the base frame 101, the supporting blocks 103 are arranged below the left end and the right end of the base frame 101, the base supporting feet 104 are arranged below the supporting blocks 103, the base frame 101 is connected with the lower end of the main body frame 2 through the fixing rivets 102, the supporting blocks 103 and the base supporting feet 104 are respectively symmetrical relative to the central axis of the base frame 101, the supporting base 1 of the device is formed through the matching among the base frame 101, the fixing rivets 102, the supporting blocks 103 and the base supporting feet 104, and the whole device is fixedly supported by the base frame 101, the stability of the equipment in the using process is kept, compared with a common hydraulic machine, the servo hydraulic machine does not contain a proportional servo valve or a proportional pump link in the overall control of the system, and the servo hydraulic machine has the advantages of energy conservation, low noise, small temperature rise, good flexibility, high efficiency, convenience in maintenance and the like, can replace most of the conventional common hydraulic machines, and has wide market prospect. Compared with the traditional hydraulic press, the energy-saving effect is remarkable, and the servo drive hydraulic press can save electricity by 30-70% compared with the traditional hydraulic press according to different processing technologies and production beats;

the main body frame 2 comprises a main body shell 201, a movable door 202, a connecting hinge 203, a lifting handle 204, a pressure-bearing panel 205, a joining column 206, a connecting screw 207, a supporting lath 208 and a top plate 209, wherein the left end and the right end of the main body shell 201 are respectively provided with the movable door 202, the rear end of the movable door 202 is provided with the connecting hinge 203, the front end of the movable door 202 is provided with the lifting handle 204, the pressure-bearing panel 205 is arranged above the main body shell 201, the joining column 206 is arranged above the left end and the right end of the pressure-bearing panel 205, the connecting screw 207 is arranged inside the joining column 206, the supporting lath 208 is arranged above the connecting screw 207, the top plate 209 is arranged above the supporting lath 208, the movable doors 202 are symmetrical relative to the central axis of the main body shell 201, the movable door 202 is connected with the main body shell 201 through the connecting hinge 203, the pressure-bearing panel 205 is welded with the joining column 206, and, (ii) a

The hydraulic mechanism 4 is arranged above the processing base 3, the processing base 3 comprises an operation platform 301, a button groove 302, a linking panel 303, locking screws 304 and a processing table 305, the button groove 302 is arranged at the front end of the operation platform 301, the linking panel 303 is arranged above the operation platform 301, the locking screws 304 are arranged at the front end and the rear end of the linking panel 303, the processing table 305 is arranged above the linking panel 303, the button groove 302 is equidistantly distributed at the front end of the operation platform 301, the linking panel 303 is tightly attached to the operation platform 301, the linking panel 303 is connected with the operation platform 301 through the locking screws 304, the processing base 3 of the device is formed by matching the operation platform 301, the button groove 302, the linking panel 303, the locking screws 304 and the processing table 305, a gear pump or a high-performance vane pump is generally adopted by a servo driving hydraulic pump, the traditional hydraulic machine generally adopts an axial plunger pump, and the noise of an internal gear pump or a vane pump is 5dB to 10dB lower than that of the axial plunger pump under the same flow and pressure; the motor runs at a rated rotating speed when the servo drive hydraulic machine is pressed and returned, and the emission noise of the servo drive hydraulic machine is 5 dB-10 dB lower than that of the traditional hydraulic machine;

the hydraulic mechanism 4 comprises a hydraulic column 401, a fixing sleeve 402, an installation panel 403, a light supplement lamp 404, a sliding sleeve 405, a guide post 406 and a pressing panel 407, the middle part of the hydraulic column 401 is provided with the fixing sleeve 402, the front part of the fixing sleeve 402 is provided with the light supplement lamp 404, the lower part of the hydraulic column 401 is provided with the installation panel 403, the lower part of the installation panel 403 is provided with the pressing panel 407, the insides of the left end and the right end of the pressing panel 407 are respectively provided with the sliding sleeve 405, the inside of the sliding sleeve 405 is provided with the guide post 406, the central axis of the hydraulic column 401 is coincided with the central axis of the pressing panel 407, the installation panel 403 is tightly jointed with the pressing panel 407, the hydraulic mechanism 4 of the device is formed by the cooperation among the hydraulic column 401, the fixing sleeve 402, the installation panel 403, the light supplement lamp 404, the sliding sleeve 405, the guide post 406 and the pressing panel 407, the pressure, the automation degree is high, and the precision is good. In addition, the pressure and the speed can be controlled in a programmable way, so that various process requirements are met, and remote automatic control can be realized;

the specific operation steps are as follows:

(1) check before boot as follows: whether each travel switch, the limit switch and the limit stop iron are sensitive or not, the die or the press fitting clamping fixture are fixed reliably, each button (or wrench) of the electric control cabinet is placed at a non-working position, whether the handle, the knob and the button are damaged or not is checked, and whether main parts, components and fasteners are firmly checked for abnormal loosening or not is checked through electrical grounding or not.

(2) The oil level of the inspection equipment is not lower than the lower limit of the oil level indication, the outer surfaces of the upright post and the plunger are kept clean, and engine oil is injected firstly during each operation.

(3) The sundries on the working table surface, the die or the press-fitting clamping fixture are removed, the working pressure and the slide block stroke are adjusted, the empty vehicle runs for 2 to 3 minutes, the machine tool runs without abnormal sound, vibration, temperature rise, smell, smoke and the like, all the parts are normal, and the machine tool can start to work.

(4) When the workpiece is corrected or pressed, the workpiece is placed in the center of the upper sliding block, the workpiece is not biased, the pressure head is required to be slowly close to the workpiece, and the workpiece is prevented from being forced to enter and exit. Before starting up each shift, after pressure testing, whether the mold cracks or not should be checked.

In summary, when the pressing method of the four-column hydraulic press is used, the specific operation steps are as follows:

(1) check before boot as follows: whether each travel switch, the limit switch and the limit stop iron are sensitive or not, the die or the press fitting clamping fixture are fixed reliably, each button (or wrench) of the electric control cabinet is placed at a non-working position, whether the handle, the knob and the button are damaged or not is checked, and whether main parts, components and fasteners are firmly checked for abnormal loosening or not is checked through electrical grounding or not.

(2) The oil level of the inspection equipment is not lower than the lower limit of the oil level indication, the outer surfaces of the upright post and the plunger are kept clean, and engine oil is injected firstly during each operation.

(3) The sundries on the working table surface, the die or the press-fitting clamping fixture are removed, the working pressure and the slide block stroke are adjusted, the empty vehicle runs for 2 to 3 minutes, the machine tool runs without abnormal sound, vibration, temperature rise, smell, smoke and the like, all the parts are normal, and the machine tool can start to work.

(4) When the workpiece is corrected or pressed, the workpiece is placed in the center of the upper sliding block, the workpiece is not biased, the pressure head is required to be slowly close to the workpiece, and the workpiece is prevented from being forced to enter and exit. Before starting up each shift, after pressure testing, whether the mold cracks or not is checked;

an internal gear pump or a high-performance vane pump is generally adopted as an oil pump of the servo driving hydraulic machine, an axial plunger pump is generally adopted as a traditional hydraulic machine, and the noise of the internal gear pump or the vane pump is 5 dB-10 dB lower than that of the axial plunger pump under the same flow and pressure; the motor runs at rated speed when the servo drive hydraulic press is pressed and returned, the emission noise is 5 dB-10 dB lower than that of the traditional hydraulic press, the pressure, speed and position of the servo drive hydraulic press are controlled by full closed loop digital control, the automation degree is high, and the precision is good. In addition, the pressure and the speed can be controlled in a programmable way, so that various process requirements are met, and remote automatic control can be realized.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (10)

1. A pressing method of a four-column hydraulic machine comprises a support base (1) and a hydraulic mechanism (4), and is characterized in that: a main body frame (2) is arranged above the supporting base (1), a processing base (3) is arranged in the middle of the upper part of the main body frame (2), a hydraulic mechanism (4) is arranged above the processing base (3), the hydraulic mechanism (4) comprises a hydraulic column (401), a fixed sleeve (402), an installation panel (403), a light supplement lamp (404), a sliding sleeve (405), a guide column (406) and a pressing panel (407), a fixing sleeve (402) is arranged in the middle of the hydraulic column (401), a light supplement lamp (404) is arranged in front of the fixing sleeve (402), an installation panel (403) is arranged below the hydraulic column (401), and a pressing panel (407) is arranged below the mounting panel (403), sliding sleeves (405) are arranged inside the left end and the right end of the pressing panel (407), and guide columns (406) are arranged inside the sliding sleeves (405).

2. The pressing method of a four-column hydraulic press according to claim 1, characterized in that: the supporting base (1) comprises a base frame (101), fixing rivets (102), supporting blocks (103) and base supporting feet (104), the fixing rivets (102) are arranged inside the base frame (101), the supporting blocks (103) are arranged below the left end and the right end of the base frame (101), and the base supporting feet (104) are arranged below the supporting blocks (103).

3. The pressing method of a four-column hydraulic press according to claim 2, characterized in that: the base frame (101) is connected with the lower end of the main body frame (2) through a fixing rivet (102), and the supporting block (103) and the base supporting foot (104) are symmetrical relative to the central axis of the base frame (101).

4. The pressing method of a four-column hydraulic press according to claim 1, characterized in that: the main body frame (2) comprises a main body shell (201), a movable door (202), a connecting hinge (203), a lifting handle (204), a pressure bearing panel (205), a connecting column (206), a connecting screw (207), a supporting lath (208) and a top plate (209), the left end and the right end of the main body shell (201) are both provided with a movable door (202), a connecting hinge (203) is arranged at the rear end of the movable door (202), a lifting handle (204) is arranged at the front end of the movable door (202), a pressure-bearing panel (205) is arranged above the main body shell (201), and the upper parts of the left and right ends of the pressure-bearing panel (205) are respectively provided with a connecting column (206), the inside of the connecting column (206) is provided with a connecting screw (207), and a supporting lath (208) is arranged above the connecting screw (207), and a top plate (209) is arranged above the supporting lath (208).

5. The pressing method of a four-column hydraulic press according to claim 4, characterized in that: the movable doors (202) are symmetrical relative to the central axis of the main body shell (201), and the movable doors (202) are connected with the main body shell (201) through connecting hinges (203).

6. The pressing method of a four-column hydraulic press according to claim 4, characterized in that: the pressure-bearing panel (205) and the joining column (206) are welded, and the supporting battens (208) are connected with the joining column (206) through connecting screws (207).

7. The pressing method of a four-column hydraulic press according to claim 1, characterized in that: processing base (3) are including operation platform (301), button groove (302), link up panel (303), locking screw (304), processing platform (305), the front end of operation platform (301) is provided with button groove (302), and the top of operation platform (301) is provided with links up panel (303), link up the front and back both ends of panel (303) and all be provided with locking screw (304), and the top of linking up panel (303) is provided with processing platform (305).

8. The pressing method of a four-column hydraulic press according to claim 7, wherein: button groove (302) equidistance distributes in the front end of operation platform (301), and links up closely laminating between panel (303) and operation platform (301) to link up panel (303) and be connected with operation platform (301) through locking screw (304).

9. The pressing method of a four-column hydraulic press according to claim 1, characterized in that: the central axis of the hydraulic column (401) coincides with the central axis of the downward pressing panel (407), and the installation panel (403) is tightly attached to the downward pressing panel (407).

10. The pressing method of a four-column hydraulic press according to claim 1, characterized in that: the specific operation steps are as follows:

(1) check before boot as follows: whether each travel switch, the limit switch and the limit stop iron are sensitive or not, the die or the press fitting clamping fixture are fixed reliably, each button (or wrench) of the electric control cabinet is placed at a non-working position, whether the handle, the knob and the button are damaged or not is checked, and whether main parts, components and fasteners are firmly checked for abnormal loosening or not is checked through electrical grounding or not.

(2) The oil level of the inspection equipment is not lower than the lower limit of the oil level indication, the outer surfaces of the upright post and the plunger are kept clean, and engine oil is injected firstly during each operation.

(3) The sundries on the working table surface, the die or the press-fitting clamping fixture are removed, the working pressure and the slide block stroke are adjusted, the empty vehicle runs for 2 to 3 minutes, the machine tool runs without abnormal sound, vibration, temperature rise, smell, smoke and the like, all the parts are normal, and the machine tool can start to work.

(4) When the workpiece is corrected or pressed, the workpiece is placed in the center of the upper sliding block, the workpiece is not biased, the pressure head is required to be slowly close to the workpiece, and the workpiece is prevented from being forced to enter and exit. Before starting up each shift, after pressure testing, whether the mold cracks or not should be checked.

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