CN110370705A - Segmented multiple-pass hydraulic press - Google Patents
Segmented multiple-pass hydraulic press Download PDFInfo
- Publication number
- CN110370705A CN110370705A CN201910659258.5A CN201910659258A CN110370705A CN 110370705 A CN110370705 A CN 110370705A CN 201910659258 A CN201910659258 A CN 201910659258A CN 110370705 A CN110370705 A CN 110370705A
- Authority
- CN
- China
- Prior art keywords
- piston
- pipeline
- chamber
- cylinder body
- partition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J9/00—Forging presses
- B21J9/10—Drives for forging presses
- B21J9/12—Drives for forging presses operated by hydraulic or liquid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B1/00—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen
- B30B1/32—Presses, using a press ram, characterised by the features of the drive therefor, pressure being transmitted directly, or through simple thrust or tension members only, to the press ram or platen by plungers under fluid pressure
-
- 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
Abstract
The present invention provides a kind of segmented multiple-pass hydraulic presses, including body；Cylinder body is arranged in the body, a partition is fixedly installed in the cylinder body；Secondary piston is slidably arranged in the lower section of the intracorporal partition of the cylinder, and bottom is fixedly installed a secondary piston bar, and bottom end is fixedly connected with a sliding block；Middle piston, is slidably arranged in the top of the intracorporal partition of the cylinder, and bottom is fixedly installed piston rod in one；Piston afterwards is slidably arranged in the top of the intracorporal middle piston of the cylinder, and the bottom of the rear piston is fixedly installed a connecting rod, and the bottom end of the connecting rod is fixedly connected with the middle piston；The segmented multiple-pass hydraulic press is provided with hydraulic plumbing system.Hydraulic press of the invention has the forging and stamping process of two-part and the reseting procedure of third section, by the way of segmented multiple-pass, adapts to the requirement of forging and stamping, improves the quality and production efficiency of forging, use only a hydraulic valve, low cost is easy to maintain.
Description
Technical field
The present invention relates to hydraulic press technical field, in particular to a kind of segmented multiple-pass hydraulic press.
Background technique
With the fast development of the industries such as aerospace, railway locomotive, nonferrous metallurgy, defence and military, large ship, to height
The forging of performance, stamping parts demand are also increasing, while also to the working performance of forging equipment, more stringent requirements are proposed.
Hydraulic press is a kind of common forging equipment, using liquid as working media, using the static pressure of liquid, is passed according to pascal's principle
Pass the products such as energy forging and stamping metal.Hydraulic press can stay longer stroke length (to be divided into install unloading mold, charging discharging etc.
Idle stroke and forging and stamping stroke), idle stroke refers to that hydraulic press work starts to mold to contact the stroke of blank, and forging and stamping stroke refers to mould
Start to carry out the stroke of forging and stamping work after tool contact blank.Generally require hydraulic press movement speed with higher in idle stroke
Degree, and there is preferable reinforcement effect when forging and pressing stroke, and speed should not be too high, achieve the effect that low speed forges and presses.
Traditional hydraulic press is typically necessary to realize complicated function and is equipped with complicated valve path system, it is especially desirable to
The control valve of high quality, and the control valve cost of high quality is high at present, many key technologies are monopolized by foreign countries, associated core skill
Art externally maintains secrecy.The dosage that control valve how is reduced by cleverly design, reduces cost, and realize hydraulic press in idle stroke
The performance different with when forging and stamping stroke, becomes hot spot studied both at home and abroad at present.
Summary of the invention
The present invention provides a kind of segmented multiple-pass hydraulic presses, and its purpose is to the hydraulic press structures for solving traditional to set
Meter is complicated, needs the control valve of built-in multiple high quality, leads to the higher problem of its cost.
In order to achieve the above object, the present invention provides a kind of segmented multiple-pass hydraulic presses, comprising:
Body is abreast provided with two guide rails in the body；
Cylinder body, the cylinder body are arranged in the body, are fixedly connected with the body, are fixedly installed in the cylinder body
One partition is provided with piston hole in one in the middle part of the partition；
Secondary piston, the secondary piston are slidably arranged in the lower section of the intracorporal partition of the cylinder, and the secondary piston bottom is solid
Surely it is provided with a secondary piston bar, the bottom end of the secondary piston bar passes through the bottom of the cylinder body, is fixedly connected with a sliding block, described
Sliding block is slidably arranged on the guide rail；
Middle piston, the middle piston are slidably arranged in the top of the intracorporal partition of the cylinder, the bottom of the middle piston
It is fixedly installed piston rod in one, middle piston rod setting corresponding with the middle piston hole；
Piston afterwards, the rear piston are slidably arranged in the top of the intracorporal middle piston of the cylinder, the bottom of the rear piston
Portion is fixedly installed a connecting rod, and the bottom end of the connecting rod is fixedly connected with the middle piston；
The bottom and side wall of the secondary piston and the cylinder body surrounds the first chamber, the secondary piston and the partition and institute
The side wall for stating cylinder body surrounds the second chamber, the partition and the middle piston and the side wall of the cylinder body surrounds third chamber, described
The side wall of middle piston and the rear piston and the cylinder body surrounds the 4th chamber, the top and side of the rear piston and the cylinder body
Wall surrounds the 5th chamber；
First chamber is connected to by hydraulic plumbing system, the hydraulic plumbing system by the first pipeline with the 4th chamber, is led to
It crosses the second pipeline and is connected to the third chamber with the 4th chamber, connected the 4th chamber and a two-position four-way valve by third pipeline
It is logical, the 5th chamber is connected to the two-position four-way valve by the 4th pipeline, by the 5th pipeline by the two-position four-way valve
It is connected to a fuel tank, is connected to the two-position four-way valve with an oil pump by the 6th pipeline, the fuel tank and oil pump pass through the 7th
Pipeline connection.
Wherein, the body includes fuselage on fuselage, two root posts and one, and the column is opposite and is fixedly disposed
In the lower fuselage upper surface, the upper fuselage is fixed at the top of the column, and the cylinder body and the upper fuselage are solid
Fixed connection, two guide rails are respectively fixedly disposed on two columns.
It wherein, is clearance fit between the middle piston rod and the middle piston hole.
Wherein, before the middle piston rod is not inserted into the middle piston hole, the middle piston rod bottom end and the partition
Maximum distance between upper surface is equal to the thickness of the middle piston, the difference in height between two communication ports of second pipeline
Equal to the maximum distance between the lower surface of the middle piston and the upper surface of the partition.
Wherein, the two-position four-way valve has the third pipeline and the 5th pipeline connection, the 4th pipeline and the
First connected state of six pipeline connections, and by the third pipeline and the 6th pipeline connection, the 4th pipeline and the 5th
Second connected state of pipeline connection.
Above scheme of the invention have it is following the utility model has the advantages that
Segmented multiple-pass hydraulic press of the invention, it is isostructural by the intracorporal middle piston of cylinder, middle piston rod and partition
Cooperation forms the two-part forging and stamping process of hydraulic press, and first segment is the higher idle stroke section of speed, and second segment is to connect with forging
Reinforcement trip segment at a slow speed after touch, while further including the return stroke section of third section, by the way of segmented multiple-pass, adapt to
The requirement of forging and stamping improves the quality and production efficiency of forging；
Segmented multiple-pass hydraulic press of the invention, uses only a hydraulic valve, and overall construction design is also relatively simple,
So that the cost of hydraulic press is relatively low, and it is easy to maintain, there is certain economic benefit and promotional value.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention.
[description of symbols]
1- guide rail；2- cylinder body；3- partition；Piston hole in 4-；5- secondary piston；6- secondary piston bar；7- sliding block；Piston in 8-；
Piston rod in 9-；Piston after 10-；11- connecting rod；The first chamber of 12-；The second chamber of 13-；14- third chamber；The 4th chamber of 15-；16-
Five chambers；The first pipeline of 17-；The second pipeline of 18-；19- third pipeline；20- two-position four-way valve；The 4th pipeline of 21-；22- the 5th is managed
Road；23- fuel tank；The 6th pipeline of 24-；The 7th pipeline of 25-；26- oil pump；Fuselage under 27-；28- column；The upper fuselage of 29-.
Specific embodiment
To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool
Body embodiment is described in detail.
The present invention is directed to existing hydraulic press complex structural designs, needs the control valve of built-in multiple high quality, it is caused to make
The problem of valence higher cost, provides a kind of segmented multiple-pass hydraulic press.
As shown in Figure 1, the embodiment provides a kind of segmented multiple-pass hydraulic presses, comprising: body, the machine
It is abreast provided with two guide rails 1 in vivo；Cylinder body 2, the cylinder body 2 are arranged in the body, are fixedly connected with the body,
A partition 3 is fixedly installed in the cylinder body 2, the middle part of the partition 3 is provided with piston hole 4 in one；Secondary piston 5, before described
Piston 5 is slidably arranged in the lower section of the partition 3 in the cylinder body 2, and 5 bottom of secondary piston is fixedly installed a secondary piston bar
6, the bottom end of the secondary piston bar 6 passes through the bottom of the cylinder body 2, is fixedly connected with a sliding block 7, the sliding block 7 is slidably set
It sets on the guide rail 1；Middle piston 8, the middle piston 8 is slidably arranged in the top of the partition 3 in the cylinder body 2, described
The bottom of middle piston 8 is fixedly installed piston rod 9 in one, the middle piston rod 9 setting corresponding with the middle piston hole 4；Afterwards
Piston 10, the rear piston 10 are slidably arranged in the top of the middle piston 8 in the cylinder body 2, the bottom of the rear piston 10
It is fixedly installed a connecting rod 11, the bottom end of the connecting rod 11 is fixedly connected with the middle piston 8；The secondary piston 5 and institute
The bottom and side wall for stating cylinder body 2 surrounds the first chamber 12, and the side wall of the secondary piston 5 and the partition 3 and the cylinder body 2 surrounds
The side wall of second chamber 13, the partition 3 and the middle piston 8 and the cylinder body 2 surrounds third chamber 14, the middle piston 8 with
The side wall of piston 10 and the cylinder body 2 surrounds the 4th chamber 15, the top and side of the rear piston 10 and the cylinder body 2 after described
Wall surrounds the 5th chamber 16；Hydraulic plumbing system, the hydraulic plumbing system is by the first pipeline 17 by first chamber 12 and the
The third chamber 14, is connected to by the connection of four chambers 15 by the second pipeline 18 with the 4th chamber 15, by third pipeline 19 by described the
Four chambers 15 are connected to a two-position four-way valve 20, are connected the 5th chamber 16 with the two-position four-way valve 20 by the 4th pipeline 21
It is logical, the two-position four-way valve 20 is connected to a fuel tank 23 by the 5th pipeline 22, by the 6th pipeline 24 by described two four
Port valve 20 is connected to an oil pump 26, and the fuel tank 23 is connected to oil pump 26 by the 7th pipeline 25.
Segmented multiple-pass hydraulic press described in the above embodiment of the present invention, cylinder body 2 are fixed on body, setting
It is fixedly connected in 6 bottom end of secondary piston bar in cylinder body 2 with the sliding block 7 being slidably arranged on guide rail 1, forge die is mountable to slide
7 bottom of block pushes down on the forging and stamping output that sliding block 7 forms hydraulic press by secondary piston bar 6.It is successively set from the bottom up in cylinder body 2
Be equipped with secondary piston 5, partition 3, middle piston 8 and rear piston 10, wherein partition 3 and cylinder body 2 are fixed, can not move, secondary piston 5, in
Piston 8 is equal with the sectional area of rear piston 10, can slide up and down in cylinder body 2.Secondary piston bar 6 is set to the bottom of secondary piston 5
End, is fixedly connected with secondary piston 5, sliding block 7 along guide rail 1 slide through secondary piston 5 slide up and down drive, with secondary piston 5
Movement synchronizes.The fixed partition 3 of setting one, opens up piston hole 4 in one in the middle part of partition 3 between secondary piston 5 and middle piston 8,
Piston rod 9 in the bottom end fixed setting one of middle piston 8, size match with middle piston hole 4.Therefore, middle piston 8 moves down
When secondary piston 5 can be pushed to move down by hydraulic power transmission, during middle piston rod 9 does not enter in the leading portion stroke that middle piston 8 moves down
When in piston hole 4, third chamber 14 and the second chamber 13 are connected state, preceding since middle piston 8 is equal with the sectional area of secondary piston 5
Piston 5 is understood under action of hydraulic force with middle piston 8 with identical speed rapid decrease, is at this time the hollow travel stage of hydraulic press,
That is the first stroke stage.In the middle piston rod 9 enter in after piston hole 4, being connected to for third chamber 14 and the second chamber 13, middle work will be separated
Stopper rod 9 pushes the movement of the downward reinforcement of secondary piston 5 by hydraulic power transmission, and according to pascal's principle, pressure ratio is equal to secondary piston 5 at this time
With the ratio between the sectional area of middle piston rod 9, hydraulic press enters reinforcement stroke stage, i.e. second stroke stage.Middle piston 8 and rear piston
10 are fixedly connected by a connecting rod 11, therefore when injecting hydraulic oil into the 5th chamber 16 by oil pump 26, by piston after driving
10 and drive in piston 8 move downward simultaneously.
The hydraulic oil of segmented multiple-pass hydraulic press, passes through hydraulic plumbing system described in the above embodiment of the present invention
Driving and water conservancy diversion transmit hydraulic coupling in each intracavitary circulation.In the first stroke stage of hydraulic press, hydraulic oil is acted in oil pump 26
Under from the 6th pipeline 24 enter two-position four-way valve 20, then from the 4th pipeline 21 enter the 5th chamber 16 in, after being pushed by hydraulic coupling
Piston 10 and middle piston 8 move down.It is when middle piston 8 moves down, piston hole 4 in the hydraulic oil indentation in third chamber 14 is laggard
Enter the second chamber 13, pushes secondary piston 5 to move down by hydraulic coupling.At this point, the hydraulic oil in the first chamber 12 passes through the first pipeline
17 flow into the 4th chambers 15, then pass sequentially through third pipeline 19 and the 5th pipeline 22 is back to fuel tank 23, form following for hydraulic oil
Circulation is logical.In the middle the hydraulic press second stroke stage in the entrance of piston rod 9 after piston hole 4, middle piston rod 9 is by middle piston hole 4
Blocking, the hydraulic oil in third chamber 14 will flow into the 4th chamber 15 by the second pipeline 18, then pass sequentially through third pipeline 19 and the
Five pipelines 22 are back to fuel tank 23.
Return stroke stage after hydraulic press completes forging and stamping, i.e. third trip stage, hydraulic oil is under the effect of oil pump 26
From the 6th pipeline 24 enter two-position four-way valve 20, then from third pipeline 19 enter the 4th chamber 15 in, then from the first pipeline 17 into
Enter the first chamber 12, pushes secondary piston 5 to move up by hydraulic coupling.Secondary piston 5 squeezes the hydraulic oil in the second chamber 13 when moving up,
By hydraulic coupling push in piston 8 and rear piston 10 move up, final secondary piston 5, middle piston 8 and rear piston 10 are reset to
Initial position prepares the forging and stamping process for starting next hydraulic press.
Wherein, the body includes fuselage 29 in fuselage 27, two root posts 28 and one, and the column 28 is opposite and solid
27 upper surface of lower fuselage is set surely, and the upper fuselage 27 is fixed at the top of the column 28, the cylinder body 2
It is fixedly connected with the upper fuselage 29, two guide rails 1 are respectively fixedly disposed on two columns 28.Lower fuselage 27 is made
For the support base of entire hydraulic press, column 28 is vertically mounted to the two sides of lower fuselage, and upper fuselage 29 is fixedly mounted in two
The top of root post 28.Cylinder body 2 is fixedly mounted on upper fuselage 29, and positioned at the surface of lower fuselage 27, forging is placed on
The upper surface of lower fuselage 27, forge die are mounted on 7 bottom of sliding block, and sliding block 7 is under the promotion of the secondary piston bar 6 of 2 bottom of cylinder body
Along 1 slide downward of guide rail, simultaneously reinforcement is contacted with forging, completes forging and stamping process.
Wherein, it is clearance fit between the middle piston rod 9 and the middle piston hole 4, enables in the insertion of middle piston rod 9
It is slided in piston hole 4 and along middle 4 inner sidewall of piston hole, while in the middle in the entrance of piston rod 9 after piston hole 4, it can be preferably by
Piston hole 4 blocks, and the second chamber 13 of blocking is connected to third chamber 14, it is ensured that during hydraulic press passes through in second stroke stage reinforcement
Is transmitted to the upper surface of secondary piston 5 by hydraulic coupling for 9 bottom of piston rod.
Wherein, before the middle piston rod 9 is not inserted into the middle piston hole 4, middle 9 bottom end of piston rod and it is described every
Maximum distance between 3 upper surface of plate is equal to the thickness of the middle piston 8, between two communication ports of second pipeline 18
Difference in height is equal to the maximum distance between the lower surface of the middle piston 8 and the upper surface of the partition 3.When hydraulic press is located at the
When the one stroke stage, middle 9 bottom end of piston rod moves down and is progressively closer to the upper surface of partition 3, since the thickness of middle piston 8 is equal to
Maximum distance between middle 9 bottom end of piston rod and 3 upper surface of partition, therefore the middle piston hole of partition 3 is not entered in middle piston rod 9
When in 4, the side wall of middle piston 8 can block the high-order communication port of the second pipeline 18, so that the hydraulic oil in third chamber 14 can not
It is back in the 4th chamber 15, and then is pressed into middle piston hole 4 and the second chamber 13 from the second pipeline 18, hydraulic coupling therefrom piston
8 lower surface is transferred to the upper surface of secondary piston 5.And when hydraulic press enters the second stroke stage, it is living in the middle insertion of piston rod 9
In consent 4, the side wall of middle piston 8 has been lower than the high-order communication port of the second pipeline 18 at this time, and the second pipeline 18 is connected to third chamber 14
With the 4th chamber 15 so that hydraulic oil when middle piston 8 continues to move down in third chamber 14 will be back to the 4th chamber 15, and according to
It is secondary that fuel tank 23 is recycled to by third pipeline 19 and the 5th pipeline 22, to prevent during the hydraulic oil in third chamber 14 is detained and hinders
Piston 8 continues to move down.The hydraulic coupling on secondary piston 5 is transmitted by 9 bottom end of middle piston rod being located in middle piston hole 4 at this time, according to
According to pascal's principle, the effect of pressurization is formed.
Wherein, the two-position four-way valve 20 have the third pipeline 19 is connected to the 5th pipeline 22, it is described 4th manage
The first connected state that road 21 is connected to the 6th pipeline 24, and the third pipeline 19 is connected to the 6th pipeline 24, is described
The second connected state that 4th pipeline 21 is connected to the 5th pipeline 22.When hydraulic press is located at the first stroke stage, two-position four-way
Valve 20 is the first connected state, and hydraulic oil passes sequentially through the 6th pipeline 24 and the 4th pipeline 21 under the action of oil pump 26, is entered
In 5th chamber 16, the hydraulic coupling that piston 10 moves down after pushing is generated, the hydraulic oil in the first chamber 12 will pass through the first pipeline at this time
17 flow into the 4th chambers 15, and extra hydraulic oil is flowed back in fuel tank 23 by third pipeline 19 and the 5th pipeline 22 in the 4th chamber 15.
When hydraulic press is located at the second stroke stage, two-position four-way valve 20 keeps the first connected state, effect of the hydraulic oil in oil pump 26
Under pass sequentially through the 6th pipeline 24 and the 4th pipeline 21, into the 5th chamber 16, generate the hydraulic coupling that moves down of piston 10 after promotion,
The hydraulic oil in third chamber 14 will flow into the 4th chamber 15 by the second pipeline 18 at this time, and the hydraulic oil in the first chamber 12 passes through first
Pipeline 17 flows into the 4th chamber 15, and extra hydraulic oil flows back to fuel tank 23 by third pipeline 19 and the 5th pipeline 22 in the 4th chamber 15
It is interior.And when hydraulic press is located at the third trip stage, two-position four-way valve 20 switches to the second connected state, and hydraulic oil is in oil at this time
Pump 26 under the action of pass sequentially through the 6th pipeline 24 and third pipeline 19, into the 4th chamber 15, then by the first pipeline 17 into
Enter the first chamber 12, generates the hydraulic coupling for pushing secondary piston 5 to move up, the 4th pipeline 21 is connected to the 5th pipeline 22 at this time, the 5th chamber
Hydraulic oil in 16 will pass sequentially through the 4th pipeline 21 and the 5th pipeline 22 is back in fuel tank 23, forms the recycle stream of hydraulic oil
It is logical.
To sum up, segmented multiple-pass hydraulic press described in the above embodiment of the present invention, by middle piston 8 in cylinder body 2,
Middle piston rod 9 and the isostructural cooperation of partition 3 form the two-part forging and stamping process of hydraulic press, and first segment is that speed is higher
Idle stroke section, second segment are the reinforcement trip segment after contacting with forging, while further including the return stroke section of third section, using point
The mode of segmentation multiple-pass adapts to the requirement of forging forging and stamping, improves the quality and production efficiency of forging.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (5)
1. a kind of segmented multiple-pass hydraulic press characterized by comprising
Body is abreast provided with two guide rails in the body；
Cylinder body, the cylinder body are arranged in the body, are fixedly connected with the body, be fixedly installed in the cylinder body one every
Plate is provided with piston hole in one in the middle part of the partition；
Secondary piston, the secondary piston are slidably arranged in the lower section of the intracorporal partition of the cylinder, and the secondary piston bottom fixation is set
It is equipped with a secondary piston bar, the bottom end of the secondary piston bar passes through the bottom of the cylinder body, is fixedly connected with a sliding block, the sliding block
It is slidably arranged on the guide rail；
Middle piston, the middle piston are slidably arranged in the top of the intracorporal partition of the cylinder, and the bottom of the middle piston is fixed
It is provided with piston rod in one, middle piston rod setting corresponding with the middle piston hole；
Piston afterwards, the rear piston are slidably arranged in the top of the intracorporal middle piston of the cylinder, and the bottom of the rear piston is solid
Surely it is provided with a connecting rod, the bottom end of the connecting rod is fixedly connected with the middle piston；
The bottom and side wall of the secondary piston and the cylinder body surrounds the first chamber, the secondary piston and the partition and the cylinder
The side wall of body surrounds the second chamber, the partition and the middle piston and the side wall of the cylinder body surrounds third chamber, the middle work
The side wall of plug and the rear piston and the cylinder body surrounds the 4th chamber, and the rear piston is enclosed with the top of the cylinder body and side wall
At the 5th chamber；
First chamber is connected to by the first pipeline by hydraulic plumbing system, the hydraulic plumbing system with the 4th chamber, by the
The third chamber is connected to by two pipelines with the 4th chamber, is connected to the 4th chamber with a two-position four-way valve by third pipeline,
The 5th chamber is connected to the two-position four-way valve by the 4th pipeline, by the 5th pipeline by the two-position four-way valve and one
The two-position four-way valve, is connected to by fuel tank connection by the 6th pipeline with an oil pump, and the fuel tank and oil pump pass through the 7th pipeline
Connection.
2. segmented multiple-pass hydraulic press according to claim 1, which is characterized in that the body include fuselage,
Fuselage in two root posts and one, the column is opposite and is fixedly provided in the lower fuselage upper surface, and the upper fuselage is fixed
The top of the column is set, and the cylinder body is fixedly connected with the upper fuselage, and two guide rails are respectively fixedly disposed at
On two columns.
3. segmented multiple-pass hydraulic press according to claim 1, which is characterized in that the middle piston rod and the middle work
It is clearance fit between consent.
4. segmented multiple-pass hydraulic press according to claim 3, which is characterized in that be not inserted into institute in the middle piston rod
Before stating piston hole, the maximum distance between the middle piston rod bottom end and the partition upper surface is equal to the middle piston
Thickness, the difference in height between two communication ports of second pipeline are equal to the upper of the lower surface of the middle piston and the partition
Maximum distance between surface.
5. segmented multiple-pass hydraulic press according to claim 1, which is characterized in that the two-position four-way valve has institute
The first connected state of third pipeline and the 5th pipeline connection, the 4th pipeline and the 6th pipeline connection is stated, and will be described
Second connected state of third pipeline and the 6th pipeline connection, the 4th pipeline and the 5th pipeline connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910659258.5A CN110370705B (en) | 2019-07-22 | 2019-07-22 | Sectional type multi-stroke hydraulic press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910659258.5A CN110370705B (en) | 2019-07-22 | 2019-07-22 | Sectional type multi-stroke hydraulic press |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110370705A true CN110370705A (en) | 2019-10-25 |
| CN110370705B CN110370705B (en) | 2021-02-02 |
Family
ID=68254503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910659258.5A Active CN110370705B (en) | 2019-07-22 | 2019-07-22 | Sectional type multi-stroke hydraulic press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110370705B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113681082A (en) * | 2021-07-30 | 2021-11-23 | 佛山市信新瀚家居科技有限公司 | Section bar cutting equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886645A (en) * | 2009-05-13 | 2010-11-17 | 单才华 | Pneumatic and hydraulic linked cylinder |
| CN103185046A (en) * | 2013-03-14 | 2013-07-03 | 西安交通大学 | Alternating current servo direct-driven supercharged electric hydraulic cylinder with oil tank and supercharging method of electric hydraulic cylinder |
| CN103850994A (en) * | 2014-03-06 | 2014-06-11 | 西安交通大学 | Electric boosting hydraulic cylinder and boosting method thereof |
| CN205388052U (en) * | 2016-01-25 | 2016-07-20 | 罗长云 | Double -pressure oil -gas separation supercharging device |
| DE102016125139A1 (en) * | 2016-12-21 | 2018-06-21 | Festo Ag & Co. Kg | Multi-position cylinder |
-
2019
- 2019-07-22 CN CN201910659258.5A patent/CN110370705B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886645A (en) * | 2009-05-13 | 2010-11-17 | 单才华 | Pneumatic and hydraulic linked cylinder |
| CN103185046A (en) * | 2013-03-14 | 2013-07-03 | 西安交通大学 | Alternating current servo direct-driven supercharged electric hydraulic cylinder with oil tank and supercharging method of electric hydraulic cylinder |
| CN103850994A (en) * | 2014-03-06 | 2014-06-11 | 西安交通大学 | Electric boosting hydraulic cylinder and boosting method thereof |
| CN205388052U (en) * | 2016-01-25 | 2016-07-20 | 罗长云 | Double -pressure oil -gas separation supercharging device |
| DE102016125139A1 (en) * | 2016-12-21 | 2018-06-21 | Festo Ag & Co. Kg | Multi-position cylinder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113681082A (en) * | 2021-07-30 | 2021-11-23 | 佛山市信新瀚家居科技有限公司 | Section bar cutting equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110370705B (en) | 2021-02-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101823096B (en) | Semi-sliding hydraulic bulging technology of automobile axle housing part and die thereof | |
| CN100577317C (en) | Alloyed steel horizontal type indirect extrusion machine | |
| CN101376158B (en) | Machine for processing and squeezing pumping rod with three stations | |
| CN201632573U (en) | Free forging hydraulic power system | |
| CN102632177B (en) | Cylinder-moving type pressing machine for sleeve cylinder | |
| CN104438388A (en) | Bidirectional hydraulic continuous drawing machine | |
| CN110370705A (en) | Segmented multiple-pass hydraulic press | |
| CN202238993U (en) | Device for machining auxiliary shaft of motorcycle gearbox | |
| CN203221173U (en) | Linkage separating and combining type thermoplastic precision forging mould | |
| CN203901502U (en) | Energy-saving ejector for hydraulic refractory brick forming machine | |
| CN207004963U (en) | A kind of novel servo driving and two groups of Quick cylinder combined systems | |
| CN103240378B (en) | Cold-forging mechanism for shaft parts of sedan double clutch transmission, and automatic system of cold-forging mechanism | |
| CN202291180U (en) | Water pressure quick forging machine set | |
| CN201988666U (en) | Quick energy-saving return device of free forging oil press | |
| CN103418728A (en) | Upper die moving platform for large forging press | |
| CN203030659U (en) | External hole punching mechanism | |
| CN202833396U (en) | Ultra-high pressure output integrated oil cylinder | |
| CN208643988U (en) | A kind of die forging hot forging ejection cylinder | |
| CN202877515U (en) | Hydraulic squeezing system of squeeze casting machine | |
| CN202065272U (en) | Sleeve cylinder and down-pulling type free forging press adopting sleeve cylinder | |
| CN201714739U (en) | Composite oil cylinder | |
| CN204640845U (en) | A kind of horizontal hydraulic punch press | |
| CN210586578U (en) | Special machine for forming small elbow | |
| CN208252463U (en) | The pre- pressure booster of integral type | |
| CN2542355Y (en) | Frame-type oil tube thickening machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |