CN203472187U - Top dead center height adjusting device - Google Patents
Top dead center height adjusting device Download PDFInfo
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- CN203472187U CN203472187U CN201320370530.6U CN201320370530U CN203472187U CN 203472187 U CN203472187 U CN 203472187U CN 201320370530 U CN201320370530 U CN 201320370530U CN 203472187 U CN203472187 U CN 203472187U
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- limit casing
- top dead
- cylinder body
- master cylinder
- threaded engagement
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Abstract
The utility model relates to a top dead center height adjusting device for adjusting the height of a top dead center of a high-speed press. The top dead center height adjusting device is characterized in that the top dead center height adjusting device comprises a limiting part (112) and a gap eliminating part (134); the limiting part (112) comprises a spiral limiting sleeve (2); a first main body of the spiral limiting sleeve (2) is provided with a first limiting end surface (22); the position, relative to the side wall of an inner cavity (52) of a main cylinder body (5), of the first limiting end surface (22) in the vertical direction V, namely the height of the top dead center, can be adjusted by screwing and adjusting thread match; the gap eliminating part (134) is provided with an action rod; the action rod is set to apply an action force to the spiral limiting sleeve (2), so the contacting surface of the thread match is always pressed at the same side, and the gap of the thread match is eliminated. The precision of the closing stroke of a die of the press is ensured.
Description
Technical field
The utility model relates to forcing press (B30B), particularly the top dead-centre arrangement for adjusting height of high-speed blanking press (B30B 15/00).
Background technology
High-speed blanking press from low speed to high speed, cold machine in the transition process of heat engine, slide block top dead-centre precision changes greatly, cannot meet the needs of precision stamping.For reducing defect rate, must carry out fine motion adjustment to the top dead-centre of slide block.
The drift that patent documentation CN01112192.0 openly sets punch press starts the fluid operation loop of the upper and lower dead-centre position of cylinder; this loop comprises the first emulation distributor (5) of a dispense pressure fluid; this distributor at one end has a slide bar and can be connected in output the upper section (2a) that starts this chamber (2) that cylinder (1) slides within it, and can be connected in one for supplying with the first pump (8) and the electric valve member (6) of at least one low pressure snap action of low-pressure fluid with input; Slide bar (5a) can utilize one to have the corresponding regulating part (4) that continuous micrometer moves and put in place by contacting to be pushed into.This patent documentation regulates upper dead center position with slide bar.
The upper dead center position adjuster of the open plate shearing machine knife rest of patent documentation CN200620170668.1, it mainly adopts regulating shaft to stretch out left wallboard, at the inner gear of installing of regulating shaft, wheel and rack engagement, tooth bar is arranged on guide rail bracket, U-shaped plate is fixed in tooth bar side, and travel switch is arranged on U-shaped plate, and guide rail bracket is connected with stroke buting iron frame.This patent documentation regulates upper dead center position with regulating shaft.
The control system of the open press machine slide block stopping top dead center position of patent documentation CN200920283204.5, it comprises electromagnetic varispeed motor and PLC, it is characterized in that, three-phase alternating current tachometer generator signal in described electromagnetic varispeed motor is connected after the first current-limiting resistance and commutation diode successively, the input of access optocoupler, the output of optocoupler is connected after the second current-limiting resistance, obtains the high-speed counting input port of frequency pulse signal access PLC.PLC goes out the present speed of electromagnetic varispeed motor by frequency pulse calculated signals, according to predefined program, realize adjustment slider stopping at certain point.This patent documentation regulates upper dead center position by electromagnetic varispeed motor.
Patent documentation CN201010137898.9 discloses a kind of bottom dead center adjusting mechanism of high-speed blanking press.
The bottom dead center adjusting mechanism of the open high-speed blanking press of patent documentation CN201020148485.6.The precise adjusting device of the open forcing press bottom dead centre of patent documentation CN201120060010.6.
The open high speed stamping lathe punching machine slipper block bottom dead center position compensation adjusting device of patent documentation CN201120211462.X.
Patent documentation CN201120236054.X discloses a kind of slide block assembly with enhanced feature of high-speed blanking press.Patent documentation CN201210066722.8 high-speed fine press bottom dead centre dynamic compensation mechanism.
In prior art, the top dead-centre arrangement for adjusting height of high-speed blanking press has multiple technologies solution, but simple in structure, degree of regulation is high and the technical solution of reliable operation is still the target that those skilled in the art pursue.
Utility model content
Target of the present utility model is to propose the new technical scheme of top dead-centre arrangement for adjusting height, and it is by improving the degree of regulation of top dead-centre height, and the high accuracy that can realize mould closing stroke regulates.
For this reason, the utility model proposes top dead-centre arrangement for adjusting height, it,, for regulating the top dead-centre height of high-speed blanking press, is characterized in that:
Described top dead-centre arrangement for adjusting height comprises limiting component and gap elimination parts;
Described limiting component comprises spiral limit casing, the first main body of described spiral limit casing is arranged between Master cylinder body and main plunger, and described spiral limit casing links together by threaded engagement and described Master cylinder body, described threaded engagement is that trapezoidal thread coordinates;
The first main body of described spiral limit casing has the first spacing end face, described the first spacing end face is the height of top dead-centre described in the location positioning of the sidewall of the upper inner chamber with respect to described Master cylinder body of V in the vertical direction, and the distance between described the first spacing end face and the annular upper end face of described main plunger determines that the upper line displacement of described main plunger is big or small;
By screwing, regulate described threaded engagement can regulate described the first spacing end face position of the sidewall of the upper inner chamber with respect to described Master cylinder body of V, the namely height of described top dead-centre in the vertical direction;
Described gap is eliminated parts and is had actuating rod, and is arranged to described actuating rod and can applies active force to described spiral limit casing, makes the contact-making surface of described threaded engagement be pressed against all the time the same side, and then eliminates the gap of threaded engagement.
The utility model eliminates by gap the gap that parts have eliminated threaded engagement, has guaranteed the precision of the mould closing stroke of forcing press.
Accompanying drawing explanation
With reference to accompanying drawing, the description of feature of the present utility model, advantage and the characteristic specific embodiment by is below able to better understanding, in accompanying drawing:
Fig. 1: the front view of top dead-centre arrangement for adjusting height of the present utility model;
In the drawings, identity element is used same figure notation, and different elements is used different data markers, wherein:
| 1 | Limit casing flange |
| 2 | Spiral limit casing |
| 3 | Plunger piston locking bar (4) |
| 4 | Locking cylinder body (4) |
| 5 | Master cylinder body |
| 6 | Main plunger |
| 21 | Spacing external screw thread |
| 22 | The first spacing end face |
| 41 | Locking cylinder intracoelomic cavity |
| 51 | Spacing internal thread |
| 52 | Master cylinder body inner chamber |
| 62 | Annular upper end face |
| 63 | Thrust cylinder |
| 112 | Limiting component |
| 134 | Parts are eliminated in gap |
And, for ease of understanding and describing the utility model, as shown in Figure 1, the vertical direction of upwards moving with arrow V mark main plunger.
The specific embodiment
With reference to Fig. 1, according to main embodiment of the present utility model, for improving the degree of regulation of the top dead-centre height of forcing press, top dead-centre arrangement for adjusting height of the present utility model comprises limiting component 112 and gap elimination parts 134.Described forcing press comprises Master cylinder body 5 and main plunger 6.Described limiting component 112 comprises spiral limit casing 2, and the first main body of described spiral limit casing 2 is arranged between described Master cylinder body 5 and main plunger 6, and described spiral limit casing 2 links together by threaded engagement and described Master cylinder body 5.As the certainty of measurement of micrometer caliper can reach one thousandth millimeter, the utility model regulates top dead-centre height by threaded engagement, can effectively guarantee degree of regulation.
The first main body of described spiral limit casing 2 has the first spacing end face 22, described the first spacing end face 22 is the height of top dead-centre described in the location positioning of the sidewall of the upper inner chamber 52 with respect to described Master cylinder body 5 of V in the vertical direction, and the distance between described the first spacing end face 22 and the annular upper end face 62 of described main plunger 6 determines that the upper line displacement of described main plunger 6 is big or small.As shown in Figure 1, when described main plunger 6 upwards runs to the first spacing end face 22 of the described limiting component of its annular upper end face 62 contact, the thrust cylinder 63 of described main plunger just reaches the range of its rising, and described forcing press just reaches its top dead-centre height.
By screwing, regulate described threaded engagement can regulate described the first spacing end face 22 position of the sidewall of the upper inner chamber 52 with respect to described Master cylinder body 5 of V, the namely height of described top dead-centre in the vertical direction.
Describedly screw adjusting and can be undertaken by stepper motor.Particularly, described stepper motor drives described limiting component 112 rotations, described in carrying out, screw adjusting, thereby regulate described the first spacing end face 22 position of the sidewall of the upper inner chamber 52 with respect to described Master cylinder body 5 of V, the namely height of described top dead-centre in the vertical direction.
Certainly, to screw adjusting be not situation about often needing this, can realize by manual adjustment yet.
Described gap is eliminated parts 134 and is had actuating rod, and is arranged to described actuating rod and can applies active force to described spiral limit casing 2, makes the contact-making surface of described threaded engagement be pressed against all the time the same side, and then forces to eliminate the gap of threaded engagement.
For improving the resistance to deformation intensity of described threaded engagement, preferably, described screw thread is rectangular thread or trapezoidal thread.
According to the first modification of the present utility model, as shown in Figure 1, in the first main body of described spiral limit casing 2, be provided with external screw thread 21, and, correspondingly, on the sidewall of the inner chamber 52 of described Master cylinder body 5, be provided with internal thread 51, thereby form described threaded engagement between described spiral limit casing 2 and described Master cylinder body 5.Such structure is compact, and non-deformability is also better.
According to the second modification (not shown) of the present utility model, described spiral limit casing 2 has the second tubular main body, described the second main body extends in outside the lateral wall of described Master cylinder body 5, in described the second main body, be provided with internal thread, and correspondingly, on the columniform lateral wall of described Master cylinder body 5, be provided with external screw thread 51, thereby form described threaded engagement between described spiral limit casing 2 and described Master cylinder body 5.In this embodiment, the first main body of spiral limit casing 2 is for the location of top dead-centre height, and the second main body of spiral limit casing 2 is for the adjusting of top dead-centre height.
According to the of the present utility model one concrete modification of implementing, elimination parts 134 in gap comprise at least one locking cylinder as described in Figure 1, and described locking cylinder comprises plunger piston locking bar 3 and locking cylinder body 4; And, described actuating rod is described plunger piston locking bar 3, when supplying with hydraulic oil to described locking cylinder, described plunger piston locking bar 3 can apply active force to described spiral limit casing 2, make the contact-making surface of described threaded engagement be pressed against all the time the same side, and then force to eliminate the gap of threaded engagement.Such configuration meets the operation principle of forcing press, and the high-pressure oil passage that can utilize master cylinder provides power for described locking cylinder, and this has greatly simplified the complexity of device.
Preferably, described at least one locking cylinder is four locking cylinders, and they are configured on described Master cylinder body 5 regularly.So just can apply equably active force to described threaded engagement, be conducive to improve positioning precision.
Advantageously, described locking cylinder body 4 is integrated in described Master cylinder body 5, and wherein, the inner chamber 41 of described locking cylinder body 4 directly processes in the body of described Master cylinder body 5.Locking cylinder body is directly made in the bulk material of Master cylinder body, and this has greatly improved the compactedness of whole top dead-centre arrangement for adjusting height, and described device operation is more reliable.
As modification, locking cylinder is fixed in the periphery of master cylinder regularly.Locking cylinder can utilize standard parts and components like this, is conducive to reduce the processing cost of whole device.
According to another concrete modification of implementing of the present utility model, as shown in Figure 1, described limiting component 112 also comprises limit casing flange 1, together with described limit casing flange 1 is permanently connected with described spiral limit casing; And, when supplying with hydraulic oil to described locking cylinder, described hydraulic oil vertically V upwards raises described plunger piston locking bar 3, described plunger piston locking bar 3 leans the lower surface of described limit casing flange 1, and the thrust that vertically V makes progress is passed to described spiral limit casing 2, make the contact-making surface of described threaded engagement be pressed against all the time the upper side for the screw thread of described spiral limit casing 2, and then force to eliminate the gap of threaded engagement.The push type configuration installation and maintenance of this gap elimination parts is all fairly simple, and practicality is better.
According to another modification (not shown) of the present utility model, described limiting component 112 also comprises limit casing flange 1, together with described limit casing flange 1 is permanently connected with described spiral limit casing; Described plunger piston locking bar 3 and described limit casing flange 1 link together by mode that can not relative displacement on V in the vertical direction; And, when supplying with hydraulic oil to described locking cylinder, described hydraulic oil vertically V pulls described plunger piston locking bar 3 downwards, and the downward pulling force of V is vertically passed to described spiral limit casing 2, make the contact-making surface of described threaded engagement be pressed against all the time the next side for the screw thread of described spiral limit casing 2, and then force to eliminate the gap of threaded engagement.The tension-type configuration effort of this gap elimination parts is reliable, and operating error is little, easily operation.
Be conducive to, the lower surface of described limit casing flange 1 has annular T-slot, the upper end of described plunger piston locking bar 3 correspondingly has an annular groove, the upper end of described plunger piston locking bar 3 is plugged in described T-slot, thereby described plunger piston locking bar 3 and described limit casing flange 1 link together by mode that can not relative displacement on V in the vertical direction.
As modification, on described limit casing flange 1, have annular slotted hole, the slotted hole of described annular is passed in the upper end of described plunger piston locking bar 3, and with nut, strengthens the upper end of plunger piston locking bar 3 in described limit casing flange 1 upper surface one side, makes it no longer from described slotted hole, to deviate from.Thereby described plunger piston locking bar 3 and described limit casing flange 1 link together by mode that can not relative displacement on V in the vertical direction, but at circumferencial direction, described limit casing flange 1 can rotate relative to described plunger piston locking bar 3.
To those skilled in the art, it can also be the form of trapezoid block that parts are eliminated in described gap, particularly, described limit casing flange 1 has tapered inferior surface, the trapezoid block that at least one can move radially is installed on the upper surface of described master cylinder, the tapered inferior surface mating reaction of described trapezoid block and described limit casing flange 1, thereby described trapezoid block radially moves inward and can raise described limit casing flange 1, thus the gap of eliminating described threaded engagement.
Advantageously, as shown in Figure 1, the internal diameter of described spiral limit casing 2 is a bit larger tham the external diameter of the thrust cylinder 63 of described main plunger 6, thereby described main plunger 6 can freely move up and down described spiral limit casing 2 is interior.So just can not hinder described main plunger 6 to promote slide block.
With reference to Fig. 1, below operation principle of the present utility model is briefly described:
Described top dead-centre arrangement for adjusting height can comprise Master cylinder body, spiral limit casing, main plunger, transmission device, drive unit and locking cylinder.Spiral limit casing is built in Master cylinder body, by trapezoidal thread, is connected with Master cylinder body inwall.When stepper motor drives the rotation of spiral limit casing, spiral limit casing moves up and down along Master cylinder body inwall, distance between spiral limit casing lower surface and main plunger annular upper end face, has determined that the upper line displacement of main plunger is big or small, has also determined slide block top dead-centre height.When spiral limit casing up moves to a certain position and stops, the climb of slide block increases, and the shut height of equipment (mould) reduces; When spiral limit casing down moves to a certain position and stops, the climb of slide block reduces, and the shut height of equipment (mould) increases.In order to improve degree of regulation, this device can have been taked following measures:
(1) thickness that suitably increases spiral limit casing, to strengthen himself rigidity, reduces to produce distortion because main plunger clashes into;
(2) improve the machining accuracy of screw thread pair, reduce screw thread pair gap;
(3) at Master cylinder body along tetra-locking cylinders of Zhou Zengshe, after each adjusting has been moved, to oil cylinder, pass to hydraulic oil, make four plunger piston lockings hold out against all the time spiral limit casing flange, thereby make the screw thread pair of spiral limit casing be pressed against all the time the same side, and then force to eliminate screw thread pair gap.
More than describe preferred specific embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art just can make many modifications and variations according to design concept of the present utility model without creative work.Therefore; all technical staff in the art comply with design concept of the present utility model on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment, all should be within scope of the present utility model and/or by the determined protection domain of claims.
Claims (9)
1.
top dead-centre arrangement for adjusting height, it,, for regulating the top dead-centre height of high-speed blanking press, is characterized in that:
described top dead-centre arrangement for adjusting height comprises limiting component (112) and gap elimination parts (134);
described limiting component (112) comprises spiral limit casing (2), the first main body of described spiral limit casing (2) is arranged between Master cylinder body (5) and main plunger (6), and described spiral limit casing (2) links together by threaded engagement and described Master cylinder body (5), described threaded engagement is that trapezoidal thread coordinates;
the first main body of described spiral limit casing (2) has the first spacing end face (22), described the first spacing end face (22) is the height of top dead-centre described in the location positioning of the sidewall of the upper inner chamber (52) with respect to described Master cylinder body (5) of V in the vertical direction, and the distance between described the first spacing end face (22) and the annular upper end face (62) of described main plunger (6) determines that the upper line displacement of described main plunger (6) is big or small;
by screwing, regulate described threaded engagement can regulate described the first spacing end face (22) position of the sidewall of the upper inner chamber (52) with respect to described Master cylinder body (5) of V, the namely height of described top dead-centre in the vertical direction;
described gap is eliminated parts (134) and is had actuating rod, and is arranged to described actuating rod and can applies active force to described spiral limit casing (2), makes the contact-making surface of described threaded engagement be pressed against all the time the same side, and then eliminates the gap of threaded engagement.
2.
according to top dead-centre arrangement for adjusting height claimed in claim 1, it is characterized in that, in the first main body of described spiral limit casing (2), be provided with external screw thread (21), and, correspondingly, on the sidewall of the inner chamber (52) of described Master cylinder body (5), be provided with internal thread (51), thereby form described threaded engagement between described spiral limit casing (2) and described Master cylinder body (5).
3.
according to top dead-centre arrangement for adjusting height claimed in claim 1, it is characterized in that, described spiral limit casing (2) has the second tubular main body, described the second main body extends in outside the lateral wall of described Master cylinder body (5), in described the second main body, be provided with internal thread, and correspondingly, on the columniform lateral wall of described Master cylinder body (5), be provided with external screw thread (51), thereby form described threaded engagement between described spiral limit casing (2) and described Master cylinder body (5).
4.
according to top dead-centre arrangement for adjusting height claimed in claim 1, it is characterized in that, by stepper motor, drive described limiting component (112) rotation, described in carrying out, screw adjusting, thereby regulate described the first spacing end face (22) position of the sidewall of the upper inner chamber (52) with respect to described Master cylinder body (5) of V, the namely height of described top dead-centre in the vertical direction.
5.
top dead-centre arrangement for adjusting height according to described in any one in claim 1 to 4, is characterized in that, described gap is eliminated parts (134) and comprised at least one locking cylinder, and described locking cylinder comprises plunger piston locking bar (3) and locking cylinder body (4); And, described actuating rod is described plunger piston locking bar (3), when supplying with hydraulic oil to described locking cylinder, described plunger piston locking bar (3) can apply active force to described spiral limit casing (2), make the contact-making surface of described threaded engagement be pressed against all the time the same side, and then force to eliminate the gap of threaded engagement.
6.
according to top dead-centre arrangement for adjusting height claimed in claim 5, it is characterized in that, described at least one locking cylinder is four locking cylinders, they are configured on described Master cylinder body (5) regularly.
7.
according to top dead-centre arrangement for adjusting height claimed in claim 5, it is characterized in that, described locking cylinder body (4) is integrated in described Master cylinder body (5), and wherein, the inner chamber (41) of described locking cylinder body (4) directly processes in the body of described Master cylinder body (5).
8.
according to top dead-centre arrangement for adjusting height claimed in claim 5, it is characterized in that, described limiting component (112) also comprises limit casing flange (1), together with described limit casing flange (1) is permanently connected with described spiral limit casing; And, when supplying with hydraulic oil to described locking cylinder, described hydraulic oil vertically V upwards raises described plunger piston locking bar (3), described plunger piston locking bar (3) leans the lower surface of described limit casing flange (1), and the thrust that vertically V makes progress is passed to described spiral limit casing (2), make the contact-making surface of described threaded engagement be pressed against all the time the upper side for the screw thread of described spiral limit casing (2), and then force to eliminate the gap of threaded engagement.
9.
according to top dead-centre arrangement for adjusting height claimed in claim 5, it is characterized in that, described limiting component (112) also comprises limit casing flange (1), together with described limit casing flange (1) is permanently connected with described spiral limit casing; Described plunger piston locking bar (3) and described limit casing flange (1) link together by mode that can not relative displacement on V in the vertical direction; And, when supplying with hydraulic oil to described locking cylinder, described hydraulic oil vertically V pulls described plunger piston locking bar (3) downwards, and the downward pulling force of V is vertically passed to described spiral limit casing (2), make the contact-making surface of described threaded engagement be pressed against all the time the next side for the screw thread of described spiral limit casing (2), and then force to eliminate the gap of threaded engagement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320370530.6U CN203472187U (en) | 2013-06-26 | 2013-06-26 | Top dead center height adjusting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320370530.6U CN203472187U (en) | 2013-06-26 | 2013-06-26 | Top dead center height adjusting device |
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| Publication Number | Publication Date |
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| CN203472187U true CN203472187U (en) | 2014-03-12 |
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| CN201320370530.6U Expired - Fee Related CN203472187U (en) | 2013-06-26 | 2013-06-26 | Top dead center height adjusting device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104589695A (en) * | 2015-02-04 | 2015-05-06 | 中精集团有限公司 | Precise adjustment device of closing dead point position of full-automatic hydraulic fine-blanking press |
| CN113833685A (en) * | 2021-11-26 | 2021-12-24 | 北京中科科仪股份有限公司 | Molecular pump spindle collecting amount measuring device and measuring method |
-
2013
- 2013-06-26 CN CN201320370530.6U patent/CN203472187U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104589695A (en) * | 2015-02-04 | 2015-05-06 | 中精集团有限公司 | Precise adjustment device of closing dead point position of full-automatic hydraulic fine-blanking press |
| CN113833685A (en) * | 2021-11-26 | 2021-12-24 | 北京中科科仪股份有限公司 | Molecular pump spindle collecting amount measuring device and measuring method |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140312 Termination date: 20210626 |
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| CF01 | Termination of patent right due to non-payment of annual fee |