CN215473251U - Horizontal four-column hydraulic machine with speed conversion - Google Patents
Horizontal four-column hydraulic machine with speed conversion Download PDFInfo
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- CN215473251U CN215473251U CN202121570481.1U CN202121570481U CN215473251U CN 215473251 U CN215473251 U CN 215473251U CN 202121570481 U CN202121570481 U CN 202121570481U CN 215473251 U CN215473251 U CN 215473251U
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Abstract
The utility model relates to a horizontal four-column hydraulic press with fast and slow conversion, which comprises a machine body base, wherein a workbench and a cross beam are respectively positioned at the left end and the right end of the machine body base, four corners are respectively connected with each other through stand columns, a sliding block is arranged between the workbench and the cross beam, the center of the right end of the sliding block is connected with a piston rod of a main cylinder, four corners of the sliding block are respectively provided with a guide sleeve, and four stand columns respectively penetrate through the corresponding guide sleeves; the middle of the bottom surface of the sliding block is fixedly provided with a wheel support, the lower end face of the wheel support is welded with two support lug plates which are parallel to each other and extend downwards, a wheel shaft is arranged between the two support lug plates, two ends of the wheel shaft are respectively supported in the support lug plates through bearings, the middle of the wheel shaft is provided with a roller through a flat key, the bottom of the roller is supported on a quenching plate, and the quenching plate is fixed at the middle of the machine body base and extends along the axis of the left and right directions of the quenching plate. The horizontal four-column hydraulic machine with the fast and slow conversion function can prevent the oil cylinder from creeping at a low speed, and improve the precision of a workpiece.
Description
Technical Field
The utility model relates to a horizontal four-column hydraulic machine with speed conversion, belonging to the technical field of hydraulic machines.
Background
The prior four-column hydraulic machine generally has the upper beam at the uppermost end and is sequentially connected with the sliding block and the workbench through the upright post, a relatively long stretching stroke is often needed in a copper pipe part and related applications thereof, and the adoption of the four-column horizontal hydraulic machine is an economic method.
The four-column horizontal hydraulic machine adopts the sliding blocks to directly contact with the rails, and the copper guide plate is used as a friction pair between the sliding blocks and the rails, so that the friction resistance is reduced. Because the slider is supported on the rail by the copper guide plate and is guided by the four upright posts, the friction force generated when the slider moves has uncertainty, the processing difficulty of the slider is increased, the requirement on the working environment is higher, the phenomenon that the oil cylinder crawls at a low speed is easily generated, and the precision of a workpiece is influenced. The precision and the stability of the die and the machine tool are obviously influenced.
How to reduce the frictional resistance when the horizontal hydraulic press of four posts is tensile operating mode, prevent that the hydro-cylinder from producing the phenomenon of low-speed crawl and taking place, improve the finished piece precision to and how to realize many tonnage finished pieces at same lathe, realize the production of few input, low energy consumption, be the subject that the hydraulic press field is awaited the solution.
In addition, because the gravity of the sliding block of the horizontal hydraulic machine points to the base of the machine body, the sliding block cannot be fast moved by means of dead weight, the working efficiency is influenced, how to realize that the machine tool has a faster moving speed under the condition of not increasing power is realized, the work preparation time of the machine tool is reduced, the working efficiency is improved, and the problem to be solved is also solved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the problems in the prior art and provide a horizontal four-column hydraulic machine with fast-slow speed conversion, which can prevent an oil cylinder from creeping at a low speed and improve the precision of a workpiece.
In order to solve the technical problems, the horizontal four-column hydraulic machine with fast and slow conversion comprises a machine body base, a workbench and a cross beam are respectively positioned at the left end and the right end of the machine body base, four corners are respectively connected with each other through stand columns, a sliding block is arranged between the workbench and the cross beam, the center of the right end of the sliding block is connected with a piston rod of a main cylinder, four corners of the sliding block are respectively provided with a guide sleeve, and four stand columns respectively penetrate through the corresponding guide sleeves; the middle of the bottom surface of the sliding block is fixedly provided with a wheel support, the lower end face of the wheel support is welded with two support lug plates which are parallel to each other and extend downwards, a wheel shaft is arranged between the two support lug plates, two ends of the wheel shaft are respectively supported in the support lug plates through bearings, the middle of the wheel shaft is provided with a roller through a flat key, the bottom of the roller is supported on a quenching plate, and the quenching plate is fixed to the middle of the machine body base and extends along the axis of the machine body base in the left-right direction.
As an improvement of the utility model, fast-forward hydraulic cylinders are symmetrically arranged at two ends of the main cylinder, and the left ends of plungers of the fast-forward hydraulic cylinders are respectively connected with the sliding blocks.
As a further improvement of the utility model, the master cylinder is a piston cylinder, the fast-forward hydraulic cylinder is a plunger cylinder, the total pressure oil pipe is connected with an oil supply pipe of the fast-forward hydraulic cylinder and an inlet of a cartridge valve C6, an outlet of the cartridge valve C6 is connected with a plug cavity of the master cylinder, the plug cavity of the master cylinder is also connected with an oil tank through a liquid filling valve, and the oil supply pipe of the fast-forward hydraulic cylinder is respectively connected with oil ports of the fast-forward hydraulic cylinders; the hydraulic control port of the cartridge valve C6 is connected with the port A of the electromagnetic directional valve YV60, the port P of the electromagnetic directional valve YV60 is connected with the middle outlet of the shuttle valve S6, the left inlet of the shuttle valve S6 is connected with the outlet of the cartridge valve C6, the right inlet of the shuttle valve S6 is connected with the inlet of the cartridge valve C6, and the port T of the electromagnetic directional valve YV60 is connected with the oil tank.
As a further improvement of the utility model, an oil pump outlet pipeline is connected with an inlet of a cartridge valve C3, an outlet of a cartridge valve C3 is connected with an inlet of a cartridge valve C5, and an outlet of a cartridge valve C5 is connected with a rod cavity oil port of the master cylinder; the hydraulic control port of the cartridge valve C5 is connected with the port A of the electromagnetic directional valve YV6, the port P of the electromagnetic directional valve YV6 is connected with the outlet of the cartridge valve C5, and the port T of the electromagnetic directional valve YV6 is connected with the oil tank.
Compared with the prior art, the utility model has the following beneficial effects: 1. when the sliding block is in a stretching working condition, the generated lateral force is transmitted to the roller supported on the rail, the rolling friction of the roller replaces the sliding friction of the copper guide plate, and the running resistance of the sliding block is obviously reduced.
2. When the slide block is in idle stroke, only a small fast forward hydraulic cylinder is enabled to work, so that the slide block moves at a high speed, and the working efficiency is improved.
3. When a small workpiece is produced, a large-tonnage machine tool is not needed, and a tonnage conversion technology is used, so that the small-tonnage low-energy-consumption work is realized; by using the tonnage conversion technology, more application ranges of the machine tool are realized, and the investment cost is reduced.
Drawings
FIG. 1 is a front view of a horizontal four-column hydraulic machine with fast and slow speed change-over according to the present invention.
Fig. 2 is a top view of fig. 1.
Fig. 3 is a left side view of the present invention.
Fig. 4 is an enlarged view of a portion a in fig. 3.
Fig. 5 is a hydraulic schematic of the present invention.
Fig. 6 is an action table of fig. 5.
In the figure: 1. a body base; 2. a work table; 3. a column; 4. a cross beam; 5. a slider; 6. a master cylinder; 7. a guide sleeve; 8. a wheel support; 9. a support ear plate; 10. a wheel axle; 11. a tapered roller bearing; 11a, a bearing gland; 12. a roller; 13. quenching a plate; 14. and fast forward the hydraulic cylinder.
Detailed Description
As shown in fig. 1 to 4, the horizontal four-column hydraulic press with fast and slow conversion of the utility model comprises a machine body base 1, a workbench 2 and a cross beam 4 are respectively positioned at the left and right ends of the machine body base 1, and four corners are respectively connected with each other through upright columns 3, a slide block 5 is arranged between the workbench 2 and the cross beam 4, the center of the right end of the slide block 5 is connected with a piston rod of a main cylinder 6, four corners of the slide block 5 are respectively provided with a guide sleeve 7, and four upright columns 3 respectively penetrate through the corresponding guide sleeves 7; a wheel support 8 is fixed in the middle of the bottom surface of the sliding block 5, two support lug plates 9 which are parallel to each other and extend downwards are welded on the lower end surface of the wheel support 8, a wheel shaft 10 is installed between the two support lug plates 9, two ends of the wheel shaft 10 are respectively supported in the support lug plates 9 through tapered roller bearings 11, the outer rings of the tapered roller bearings 11 are pressed by bearing press covers 11a, and the bearing press covers 11a are fixed on the support lug plates 9; the middle part of the wheel shaft 10 is provided with a roller through a flat key, the bottom of the roller is supported on a quenching plate, and the quenching plate is fixed at the middle part of the machine body base 1 and extends along the axis of the left direction and the right direction.
In copper pipe finished pieces and related applications thereof, a longer stretching stroke is often needed, a four-column horizontal hydraulic machine is an economical method, rolling friction of rollers for the four-column horizontal hydraulic machine replaces sliding friction of a copper guide plate, running resistance of a sliding block 5 is obviously reduced, low-speed crawling of the hydraulic machine is reduced, manufacturing cost of a machine tool is also reduced, quality stability of the finished pieces is improved, precision of the finished pieces is guaranteed, and defective rate of the finished pieces is reduced.
Because the machine tool adopts a horizontal running mode, the machine tool loses the function of fast running by utilizing the gravity of the sliding block 5, and the moving speed of the sliding block completely depends on the flow of the working oil pump. Fast-forward hydraulic cylinders are symmetrically arranged at two ends of the main cylinder 6, and the left ends of plungers of the fast-forward hydraulic cylinders are respectively connected with the sliding blocks. The main cylinder 6 is a piston cylinder of 400 tons, the fast-forward hydraulic cylinder is a plunger cylinder of 50 tons, three hydraulic cylinders are adopted, and only the fast-forward hydraulic cylinder of small tonnage works during the idle stroke of the slide block, so that the slide block can obtain higher running speed under the condition of the same oil pump flow, and the working efficiency is improved.
As shown in fig. 5 and 6, the total pressure oil pipe is connected with the oil supply pipe of the fast-forward hydraulic cylinder and the inlet of the cartridge valve C6, the outlet of the cartridge valve C6 is connected with the plug cavity of the main cylinder 6, the plug cavity of the main cylinder 6 is also connected with the oil tank through the liquid filling valve DZ, and the oil supply pipe of the fast-forward hydraulic cylinder is respectively connected with the oil ports of the fast-forward hydraulic cylinders; the hydraulic control port of the cartridge valve C6 is connected with the port A of the electromagnetic directional valve YV60, the port P of the electromagnetic directional valve YV60 is connected with the middle outlet of the shuttle valve S6, the left inlet of the shuttle valve S6 is connected with the outlet of the cartridge valve C6, the right inlet of the shuttle valve S6 is connected with the inlet of the cartridge valve C6, and the port T of the electromagnetic directional valve YV60 is connected with the oil tank.
When the slide block 5 needs to fast advance, the electromagnetic directional valve YV60 is electrified, the cartridge valve C6 is closed due to pressure build-up of a hydraulic control port, oil supply of a main cylinder plug cavity is cut off, pressure oil completely enters the small-tonnage fast-forward hydraulic cylinder, due to the fact that the cylinder diameter of the fast-forward hydraulic cylinder is small, the operation speed of the slide block 5 is high under the same flow rate, and oil is supplemented in the plug cavity of the main cylinder 6 through the liquid filling valve DZ.
An oil pump outlet pipeline is connected with an inlet of a cartridge valve C3, an outlet of a cartridge valve C3 is connected with an inlet of a cartridge valve C5, and an outlet of a cartridge valve C5 is connected with a rod cavity oil port of the main cylinder 6; the hydraulic control port of the cartridge valve C5 is connected with the port A of the electromagnetic directional valve YV6, the port P of the electromagnetic directional valve YV6 is connected with the outlet of the cartridge valve C5, and the port T of the electromagnetic directional valve YV6 is connected with the oil tank.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention. In addition to the above embodiments, the present invention may have other embodiments. All technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention. Technical features of the present invention which are not described may be implemented by or using the prior art, and will not be described herein.
Claims (4)
1. The utility model provides a take horizontal four post hydraulic presses of fast and slow speed conversion, includes the fuselage base, workstation and crossbeam are located the fuselage base respectively about both ends and four bights respectively through stand interconnect, be equipped with the slider between workstation and the crossbeam, the right-hand member center of slider links to each other its characterized in that with the piston rod of master cylinder: four corners of the sliding block are respectively provided with a guide sleeve, and four upright posts respectively penetrate through the corresponding guide sleeves; the middle of the bottom surface of the sliding block is fixedly provided with a wheel support, the lower end face of the wheel support is welded with two support lug plates which are parallel to each other and extend downwards, a wheel shaft is arranged between the two support lug plates, two ends of the wheel shaft are respectively supported in the support lug plates through bearings, the middle of the wheel shaft is provided with a roller through a flat key, the bottom of the roller is supported on a quenching plate, and the quenching plate is fixed to the middle of the machine body base and extends along the axis of the machine body base in the left-right direction.
2. The horizontal four-column hydraulic machine with fast and slow switching according to claim 1, characterized in that: and fast-forward hydraulic cylinders are symmetrically arranged at two ends of the main cylinder, and the left ends of plungers of the fast-forward hydraulic cylinders are respectively connected with the sliding blocks.
3. The horizontal four-column hydraulic machine with fast and slow switching according to claim 2, characterized in that: the main cylinder is a piston cylinder, the fast-forward hydraulic cylinder is a plunger cylinder, the total pressure oil pipe is connected with an oil supply pipe of the fast-forward hydraulic cylinder and an inlet of a cartridge valve C6, an outlet of the cartridge valve C6 is connected with a plug cavity of the main cylinder, the plug cavity of the main cylinder is also connected with an oil tank through a liquid filling valve, and the oil supply pipe of the fast-forward hydraulic cylinder is respectively connected with oil ports of the fast-forward hydraulic cylinders; the hydraulic control port of the cartridge valve C6 is connected with the port A of the electromagnetic directional valve YV60, the port P of the electromagnetic directional valve YV60 is connected with the middle outlet of the shuttle valve S6, the left inlet of the shuttle valve S6 is connected with the outlet of the cartridge valve C6, the right inlet of the shuttle valve S6 is connected with the inlet of the cartridge valve C6, and the port T of the electromagnetic directional valve YV60 is connected with the oil tank.
4. The horizontal four-column hydraulic machine with fast and slow switching according to claim 3, characterized in that: an oil pump outlet pipeline is connected with an inlet of a cartridge valve C3, an outlet of a cartridge valve C3 is connected with an inlet of a cartridge valve C5, and an outlet of a cartridge valve C5 is connected with a rod cavity oil port of the master cylinder; the hydraulic control port of the cartridge valve C5 is connected with the port A of the electromagnetic directional valve YV6, the port P of the electromagnetic directional valve YV6 is connected with the outlet of the cartridge valve C5, and the port T of the electromagnetic directional valve YV6 is connected with the oil tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121570481.1U CN215473251U (en) | 2021-07-12 | 2021-07-12 | Horizontal four-column hydraulic machine with speed conversion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121570481.1U CN215473251U (en) | 2021-07-12 | 2021-07-12 | Horizontal four-column hydraulic machine with speed conversion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215473251U true CN215473251U (en) | 2022-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121570481.1U Active CN215473251U (en) | 2021-07-12 | 2021-07-12 | Horizontal four-column hydraulic machine with speed conversion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215473251U (en) |
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2021
- 2021-07-12 CN CN202121570481.1U patent/CN215473251U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220221 Address after: 225000 No. 17, shepherd Road, high tech Industrial Development Zone, Yangzhou City, Jiangsu Province Patentee after: Jiangsu Yangli Hydraulic Equipment Co.,Ltd. Address before: No.18, Yangli Road, Yangzhou hi tech Industrial Development Zone, Hanjiang District, Yangzhou City, Jiangsu Province 225127 Patentee before: JIANGSU GUOLI FORGING MACHINE TOOL Co.,Ltd. |
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| TR01 | Transfer of patent right |