CN203317761U - Elbow blank stroke energy-saving hydraulic press - Google Patents
Elbow blank stroke energy-saving hydraulic press Download PDFInfo
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- CN203317761U CN203317761U CN2013203500823U CN201320350082U CN203317761U CN 203317761 U CN203317761 U CN 203317761U CN 2013203500823 U CN2013203500823 U CN 2013203500823U CN 201320350082 U CN201320350082 U CN 201320350082U CN 203317761 U CN203317761 U CN 203317761U
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- elbow
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- arm
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Abstract
The utility model relates to a press using hydraulic plunger, in particular to an elbow blank stroke energy-saving hydraulic press, which comprises a press frame, a movable beam, a main oil cylinder and a guiding mechanism, wherein the movable beam is arranged between the upper beam and the lower beam of the press frame and can move vertically along the guiding mechanism; the main oil cylinder is arranged on the upper beam; the press has a working stroke and a blank stroke; the working stroke is performed by the main oil cylinder. The structural key point is that the elbow blank stroke energy-saving hydraulic press further comprises elbow mechanisms and an elbow driving device; the two elbow mechanisms are distributed symmetrically to each other along the press middle line; the other ends of the upper elbow and the lower elbow of each elbow mechanism are connected with the main oil cylinder plunger end and the movable beam through direct hinging or hinging via a transition component; the elbow driving device is transversally connected between the two elbow mechanisms through hinging; the elbow driving device comprises an oil cylinder or a cylinder; by virtue of driving through the elbow driving device, the two elbow mechanisms bend outwards or inwards, the stretching and the bending of the elbow correspond to the upper end point and the lower end point of the blank stroke of the press respectively, so that the blank driving is completed. The elbow blank stroke energy-saving hydraulic press is low in energy consumption, and can be manufactured easily and maintained conveniently.
Description
Technical field
The present invention relates to the press with hydraulic plunger, particularly relate to a kind of toggle link idle stroke energy-saving hydraulic press.
Background technology
In prior art, the master cylinder idle stroke of long stroke direct press type hydraulic press is relatively long, generally reaches 4/5 left and right of whole impulse stroke.During work, hydraulic cylinder first passes through idle stroke, just starts real pressing process while touching workpiece.Quick when descending at press, master cylinder must adopt the repairing of large flow prefill valve to guarantee downstream rate, and during pressurization because the master cylinder volume is large, hydraulic oil compression and expansion and frame strain cause suitable energy loss.
For solving above-mentioned technical problem, the main thought of prior art scheme is that the course of work is divided into to two sections of main-cylinder stroke and auxiliary cylinders strokes, in pressure process, idle stroke is completed by auxiliary cylinders, then the master cylinder that adopts mechanical way compensation idle stroke to cause and the space between beam, final master cylinder pressurization execution.
Due in the press structure of this class, drive the master cylinder of walking beam only need guarantee that the impulse stroke of hydraulic press gets final product, the master cylinder stroke shortens greatly.Simultaneously, because the master cylinder volume reduces greatly, the also minimizing widely of hydraulic power oil volume that when master cylinder pressurization and release, the hydraulic oil compression is expanded and consumed, reduced energy consumption, correspondingly reduced the power of main oil pump and as the accumulator volume of supplementary energy.More existing solutions are as follows:
As the CN101062598 master cylinder adopts double-head piston, piston rod hollow, the cylindricality tooth bar passes through piston rod, after the auxiliary cylinders stroke finishes, adopts mechanical device to hold the cylindricality tooth bar tightly, the compensation idle stroke.Its shortcoming is to adopt double-head piston that the master cylinder effective area is reduced.
As ZL03258511.X and 03258513.6 adopts master cylinder inverted structure, during upper limit, the cylinder piston portion stretches into upper beam, and after the auxiliary cylinders stroke finishes, the baffle plate of upper beam stretches out, the main oil cylinder piston that compensation is caused by idle stroke and the gap between upper beam.Its shortcoming is that master cylinder is unfixing, and hydraulic hose makes it be difficult to arrange in active state, and the life-span of hydraulic hose will significantly shorten;
As mentioned above, thisly in prior art utilize the main and auxiliary mode of oil cylinder alternation that helps to bring following several weak point: hydraulic system is complicated, the running easy break-down, the energy consumption of auxiliary cylinder is still not little, and manufacture and the maintenance of hydraulic system proposed to higher requirement.
Summary of the invention
The object of the invention is to overcome weak point of the prior art, and provide a kind of hydraulic system relatively simple, the idle stroke energy consumption is less, the toggle link idle stroke energy-saving hydraulic press of easily manufacturing, safeguarding.
The objective of the invention is to realize by following approach.
Toggle link idle stroke energy-saving hydraulic press, comprise press frame, moved cross beam, master cylinder and guiding mechanism, moved cross beam is placed between the entablature and sill of press frame, can move up and down along guiding mechanism, master cylinder is placed on entablature, press has impulse stroke and idle stroke, wherein impulse stroke is completed by master cylinder, it forms main points and is, also include elbow-bar mechanism and toggle link drive unit, it is symmetrical along the press center line that elbow-bar mechanism has two pairs, and another termination of the two elbow arms up and down of every secondary elbow-bar mechanism is connected with master cylinder plunger end and moved cross beam respectively, this connection or directly the hinge joint or by transition member, undertaken hinged, between two secondary elbow-bar mechanism, horizontal cross-over connection has the toggle link drive unit, cross-over connection place is hinged, include oil cylinder or cylinder in the toggle link drive unit, driving through the toggle link drive unit, two secondary elbow-bar mechanism or simultaneously outwardly-bent or simultaneously curve inwardly, the elbow arm is crooked and stretch the two-end-point up and down of corresponding press idle stroke respectively and complete by this idle stroke with it.
Like this, rely on the toggle link drive unit control the bending of two secondary elbow-bar mechanism and stretch and realize idle stroke, in this process, by the distinctive expansion power of elbow-bar mechanism and speed characteristics, fair speed is arranged and along with fast travel is slowed down gradually in the incipient stage of fast-descending stroke, in fast lifting stroke after completing pressing process, initial lifting force maximum meets the requirement of knockout press, and speed improves gradually simultaneously.Like this, in the impact that reduces fast-descending, lifting process, have again faster descend, hoisting velocity, and the spent energy consumption of toggle link drive unit is lower.
Purpose of the present invention can also realize by following approach.
Described master cylinder quantity is a plurality of, tie-beam by the guiding mechanism guiding of the common connection of the piston end of a plurality of master cylinders, and the upper elbow and arm of two secondary elbow-bar mechanism is hinged with this tie-beam respectively.
The rigidity that like this, just can realize a plurality of master cylinders is synchronous.
Transition member is a kind of transition arm, and this transition arm one end and main oil cylinder piston end or moved cross beam are affixed, and the other end and elbow arm are hinged.
Cross-over connection place of toggle link drive unit two ends and elbow-bar mechanism or on the elbow arm or in hinge joint place of upper and lower two elbow arms.
The further optimization of toggle link drive unit is, a kind of:
The toggle link drive unit is comprised of linear drive apparatus, and this linear drive apparatus is a kind of in oil cylinder, cylinder or electric pushrod, and two ends are hinged with corresponding elbow-bar mechanism respectively.
Like this, piston rod is flexible drives the elbow-bar mechanism bending and stretches.Another kind is:
The toggle link drive unit is comprised of linear drive apparatus, cross bar and transiting rod, this linear drive apparatus is a kind of in oil cylinder, cylinder or electric pushrod, linear drive apparatus or be fixed on moved cross beam or with main oil cylinder piston is connected, its piston rod vertically stretches out with horizontal and symmetrical cross bar and is connected along the press axis, the cross bar two ends are hinged with a transiting rod respectively, and the symmetrical and symmetrical hinge joint of the transiting rod other end of two identical transiting rods is in the elbow arm of corresponding elbow-bar mechanism or the hinged place of upper and lower two elbow arms.
Like this, piston rod ejects, and by cross bar, drives transiting rod, and the transiting rod of swing drives the elbow-bar mechanism bending or stretches.
Also comprise the push rod pair that limits two groups of elbow-bar mechanism minimum ranges, push rod is to comprising two push rods that are distributed in respectively on two groups of elbow-bar mechanism and are fixedly connected with the elbow arm, the two elbow arm conllinear up and down of two groups of elbow-bar mechanism or in self-locking state the time, above-mentioned two push rods engage and touch.
Like this, two push rod ends contacts when the toggle link drive unit drives two groups of elbow-bar mechanism to make upper and lower two elbow arm stretchings to conllinear or self-locking state, effectively spacing two groups of elbow-bar mechanism are the stress in conllinear or self-locking in the stroke end.
Beneficial effect: fast travel that the present invention has utilized the toggle winding machine, it is long that relative prior art has fast travel, and fair speed is arranged and along with fast travel is slowed down gradually in the incipient stage of fast-descending stroke, in fast lifting stroke after completing pressing process, initial lifting force maximum meets the requirement of knockout press, speed improves gradually simultaneously, has reduced the impact of fast-descending lifting process.
The accompanying drawing explanation
Fig. 1 is the structural representation of the described toggle link idle stroke of the embodiment of the present invention one energy-saving hydraulic press;
Fig. 2 is the structural representation of the described toggle link idle stroke of the embodiment of the present invention two energy-saving hydraulic press;
Fig. 3 is the structural representation of the described toggle link idle stroke of most preferred embodiment of the present invention energy-saving hydraulic press;
In figure:
1. press frame 2. master cylinder 3. toggle link drive unit 3.1 cross bar 3.2 transiting rod 3.3 piston rod 4. guiding mechanism 5. moved cross beam 6. elbow-bar mechanism
6.1 lower elbow and arm 6.2 upper elbow and arm 6.3 transition arm 7. push rod 8. tie-beams.
The specific embodiment
Embodiment 1
With reference to Fig. 1, toggle link idle stroke energy-saving hydraulic press, comprise press frame 1, moved cross beam 5, master cylinder 2 and guiding mechanism 4, moved cross beam 5 is placed between the entablature and sill of press frame 1, can move up and down along guiding mechanism 4, master cylinder 2 is placed on entablature, press has impulse stroke and idle stroke, wherein impulse stroke is completed by master cylinder 2, also include elbow-bar mechanism 6 and toggle link drive unit 3, it is symmetrical along the press center line that elbow-bar mechanism 6 has two pairs, and another termination of two elbow arm 6.1 6.2 up and down of every secondary elbow-bar mechanism is connected with master cylinder 2 plunger end and moved cross beam 5 respectively, this connection is to be undertaken hinged by transition arm 6.3, these transition arm 6.3 other ends and master cylinder 2 piston ends or moved cross beam are affixed, between two secondary elbow-bar mechanism, horizontal cross-over connection has toggle link drive unit 3, cross-over connection place is hinged, include oil cylinder in toggle link drive unit 3, driving through toggle link drive unit 3, two secondary elbow-bar mechanism 6 are simultaneously outwardly-bent, the elbow arm is crooked and stretch the two-end-point up and down of corresponding press idle stroke respectively and complete by this idle stroke with it.
The cross-over connection of toggle link drive unit 3 two ends and elbow-bar mechanism 6 be in upper and lower two elbow arms 6.1 6.2 hinge joint place.
Toggle link drive unit 3 is comprised of the cylinder body of oil cylinder and the piston rod 3.3 at two ends, and this two ends piston rod 3.3 is hinged with corresponding elbow-bar mechanism respectively.
Also comprise 7 pairs of push rods that limit two groups of elbow-bar mechanism 6 minimum ranges, push rod is to comprising two push rods 7 that are distributed in respectively on two groups of elbow-bar mechanism and are fixedly connected with the elbow arm, the two elbow arm conllinear up and down of two groups of elbow-bar mechanism 6 or in self-locking state the time, above-mentioned two push rods 7 engage and touch.
Like this, two push rod ends contacts when the toggle link drive unit drives two groups of elbow-bar mechanism to make upper and lower two elbow arm stretchings to conllinear or self-locking state, effectively spacing two groups of elbow-bar mechanism are the stress in conllinear or self-locking in the stroke end.
Like this, utilize elbow-bar mechanism 6 to realize fast travel, fair speed is arranged and along with fast travel is slowed down gradually in the incipient stage of fast-descending stroke, in fast lifting stroke after completing pressing process, initial lifting force maximum meets the requirement of knockout press, speed improves gradually simultaneously, has reduced the impact of fast-descending lifting process.Simultaneously, 7 pairs of ends contacts of push rod when toggle link drive unit 3 drives two groups of elbow-bar mechanism 6 to make upper and lower two elbow arm 6.1 6.2 stretch conllinear or self-locking state, effectively guaranteed two groups of elbow-bar mechanism in the stroke end stress in conllinear or self-locking.
It is same as the prior art that the present embodiment is not stated part.
With reference to Fig. 2, toggle link idle stroke energy-saving hydraulic press is from the different of embodiment 1: have two master cylinders 2 hinged with corresponding elbow-bar mechanism by transition arm 6.3 respectively.Two secondary elbow-bar mechanism 6 curve inwardly simultaneously.Toggle link drive unit 3 is comprised of oil cylinder, cross bar 3.1 and transiting rod 3.2, oil cylinder is fixed on moved cross beam, its piston rod 3.3 vertically stretches out with horizontal and symmetrical cross bar 3.1 and is connected along the press axis, cross bar 3.1 two ends are hinged with a transiting rod 3.2 respectively, and the symmetrical and symmetrical hinge joint of transiting rod 3.2 other ends of two identical transiting rods 3.2 is on the upper elbow and arm 6.2 of corresponding elbow-bar mechanism 6.Like this, piston rod 3.3 ejects, and by cross bar 3.1, drives transiting rod 3.2, and the transiting rod 3.2 of swing drives elbow-bar mechanism 6 bendings or stretches.The cross-over connection of toggle link drive unit 3 two ends and elbow-bar mechanism 6 is on upper elbow and arm 6.2 to be located.Push rod in embodiment mono-is not set in this embodiment.
It is identical with embodiment mono-that the present embodiment is not stated part,
Most preferred embodiment:
With reference to Fig. 3, toggle link idle stroke energy-saving hydraulic press is from the different of embodiment 2: upper elbow and arm 6.2 by the secondary elbow-bar mechanism 6 of tie-beam 8, two of guiding mechanism 4 guiding of the common connection of the piston end of described two master cylinders 2 is hinged with this tie-beam 8 respectively.The oil cylinder of toggle link drive unit 3 is fixed on tie-beam 8.
It is identical with embodiment bis-that the present embodiment is not stated part.
The operation principle of embodiment 1,2 and most preferred embodiment 3 is as follows:
The closing stroke of hydraulic press: at first by the action of the hydraulic cylinder of toggle link drive unit 3, drive elbow-bar mechanism to stretch until upper and lower two elbow arms 6.1 6.2 stretch conllinear or self-locking state, moved cross beam 5 is descending fast simultaneously, completes idle stroke.After elbow-bar mechanism 6 is stretched, upper and lower mould, close to closure state, now carries out the short distance pressurization by master cylinder, realizes the large-tonnage press power.
The opening stroke of hydraulic press: at first master cylinder 2 pressure releases, then overcome the bonding force of upper and lower mould and drive moved cross beam 5 short distance backhauls by elbow-bar mechanism 6 actions, the elbow arm recovery of the last Driven by Hydraulic Cylinder elbow-bar mechanism by toggle link drive unit 3, overlapping, make moved cross beam 5 rapid movements to the press original position.
Claims (8)
1. toggle link idle stroke energy-saving hydraulic press, comprise press frame, moved cross beam, master cylinder and guiding mechanism, moved cross beam is placed between the entablature and sill of press frame, can move up and down along guiding mechanism, master cylinder is placed on entablature, press has impulse stroke and idle stroke, wherein impulse stroke is completed by master cylinder, it is characterized in that, also include elbow-bar mechanism and toggle link drive unit, it is symmetrical along the press center line that elbow-bar mechanism has two pairs, and another termination of the two elbow arms up and down of every secondary elbow-bar mechanism is connected with master cylinder plunger end and moved cross beam respectively, this connection or directly the hinge joint or by transition member, undertaken hinged, between two secondary elbow-bar mechanism, horizontal cross-over connection has the toggle link drive unit, cross-over connection place is hinged, include oil cylinder or cylinder in the toggle link drive unit, driving through the toggle link drive unit, two secondary elbow-bar mechanism or simultaneously outwardly-bent or simultaneously curve inwardly, the elbow arm is crooked and stretch the two-end-point up and down of corresponding press idle stroke respectively and complete by this idle stroke with it.
2. toggle link idle stroke energy-saving hydraulic press according to claim 1, it is characterized in that, described master cylinder quantity is a plurality of, tie-beam by the guiding mechanism guiding of the common connection of the piston end of a plurality of master cylinders, and the upper elbow and arm of two secondary elbow-bar mechanism is hinged with this tie-beam respectively.
3. toggle link idle stroke energy-saving hydraulic press according to claim 1, is characterized in that, transition member is a kind of transition arm, and this transition arm one end and main oil cylinder piston end or moved cross beam are affixed, and the other end and elbow arm are hinged.
4. toggle link idle stroke energy-saving hydraulic press according to claim 1, is characterized in that, cross-over connection place of toggle link drive unit two ends and elbow-bar mechanism or on the elbow arm or in hinge joint place of upper and lower two elbow arms.
5. according to the described toggle link idle stroke of claim 1 or 4 energy-saving hydraulic press, it is characterized in that, the toggle link drive unit is comprised of linear drive apparatus, and this linear drive apparatus is a kind of in oil cylinder, cylinder or electric pushrod, and two ends are hinged with corresponding elbow-bar mechanism respectively.
6. according to the described toggle link idle stroke of claim 1 or 4 energy-saving hydraulic press, it is characterized in that, the toggle link drive unit is by linear drive apparatus, cross bar and transiting rod form, this linear drive apparatus is oil cylinder, a kind of in cylinder or electric pushrod, linear drive apparatus or be fixed on moved cross beam or with main oil cylinder piston is connected, its piston rod vertically stretches out with horizontal and symmetrical cross bar and is connected along the press axis, the cross bar two ends are hinged with a transiting rod respectively, symmetrical and the symmetrical hinge joint of the transiting rod other end of two identical transiting rods is in the elbow arm of corresponding elbow-bar mechanism or the hinged place of upper and lower two elbow arms.
7. toggle link idle stroke energy-saving hydraulic press according to claim 1, it is characterized in that, described master cylinder quantity is a plurality of, tie-beam by the guiding mechanism guiding of the common connection of the piston end of a plurality of master cylinders, the upper elbow and arm of two secondary elbow-bar mechanism is hinged with this tie-beam respectively, the toggle link drive unit is by oil cylinder or cylinder, cross bar and transiting rod form, oil cylinder or cylinder or be fixed on tie-beam, its piston rod vertically stretches out with horizontal and symmetrical cross bar and is connected along the press axis, the cross bar two ends are hinged with a transiting rod respectively, symmetrical and the symmetrical hinge joint of the transiting rod other end of two identical transiting rods is in the elbow arm of corresponding elbow-bar mechanism or the hinged place of upper and lower two elbow arms.
8. toggle link idle stroke energy-saving hydraulic press according to claim 1, it is characterized in that, also comprise the push rod pair that limits two groups of elbow-bar mechanism minimum ranges, push rod is to comprising two push rods that are distributed in respectively on two groups of elbow-bar mechanism and are fixedly connected with the elbow arm, the two elbow arm conllinear up and down of two groups of elbow-bar mechanism or in self-locking state the time, above-mentioned two push rods engage and touch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203500823U CN203317761U (en) | 2013-06-18 | 2013-06-18 | Elbow blank stroke energy-saving hydraulic press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203500823U CN203317761U (en) | 2013-06-18 | 2013-06-18 | Elbow blank stroke energy-saving hydraulic press |
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| Publication Number | Publication Date |
|---|---|
| CN203317761U true CN203317761U (en) | 2013-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203500823U Withdrawn - After Issue CN203317761U (en) | 2013-06-18 | 2013-06-18 | Elbow blank stroke energy-saving hydraulic press |
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| Country | Link |
|---|---|
| CN (1) | CN203317761U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103286970A (en) * | 2013-06-18 | 2013-09-11 | 福建海源自动化机械股份有限公司 | Toggle rod idle stroke energy-saving hydraulic machine |
| CN107661922A (en) * | 2017-07-04 | 2018-02-06 | 高丽元 | A kind of die mould cutting integration machine |
-
2013
- 2013-06-18 CN CN2013203500823U patent/CN203317761U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103286970A (en) * | 2013-06-18 | 2013-09-11 | 福建海源自动化机械股份有限公司 | Toggle rod idle stroke energy-saving hydraulic machine |
| CN103286970B (en) * | 2013-06-18 | 2015-12-02 | 福建海源自动化机械股份有限公司 | Toggle link idle stroke energy-saving hydraulic press |
| CN107661922A (en) * | 2017-07-04 | 2018-02-06 | 高丽元 | A kind of die mould cutting integration machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131204 Effective date of abandoning: 20151202 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |