CN204414523U - A kind of self-locking clamping based on two triggers - Google Patents
A kind of self-locking clamping based on two triggers Download PDFInfo
- Publication number
- CN204414523U CN204414523U CN201420844372.8U CN201420844372U CN204414523U CN 204414523 U CN204414523 U CN 204414523U CN 201420844372 U CN201420844372 U CN 201420844372U CN 204414523 U CN204414523 U CN 204414523U
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- back nut
- pull bar
- bull gear
- die plate
- moving die
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Abstract
The utility model discloses a kind of self-locking clamping based on two triggers, comprise solid plate (1), moving die plate (2), pull bar (3) and mould shifting oil cylinder (4), described solid plate (1) is fixed on one end of pull bar (3), described moving die plate (2) is sheathed on the other end of pull bar (3), and the piston end of described mould shifting oil cylinder (4) is connected to drive moving die plate (2) mobile with moving die plate (2); Described clamping also comprises mould-locking structure; mould-locking structure comprises and pull bar (3) back nut (5), bull gear (6) and the actuating unit that drives bull gear (6) to rotate one to one; described back nut (5) is combined on pull bar (3); the outer rim of back nut (5) is arranged to gear-like, and bull gear all engages to back nut (5) respectively and drives back nut to rotate on corresponding pull bar under the driving of actuating unit.The utility model without the need to using Mode-locking oil cylinder, by the energy consumption utilizing the self-locking between mechanism to reduce locked mode.
Description
Technical field
The utility model relates to injection machine field, specifically a kind of self-locking clamping based on two triggers.
Background technology
The mould-matching structure of existing two-plate injection machine, mainly contains hydraulic direct locking-type and combined type two kinds.Wherein, hydraulic direct locking-type workflow is mainly: first moved by rapid mould-moving oil cylinder pushing moving platen, then by band-type brake structure, pull bar is locked, again by Mode-locking oil cylinder by mold-locked, this hydraulic direct locking-type has automatic mold-adjustment function, but the hydraulic system relative complex required for it, reliability is poor, the size that takes up room compares three-plate type injection machine also not obvious especially advantage, especially time larger for clamp force, need four very large oil cylinders, power is large, and during locked mode and pressurize be need to consume larger energy.Typical combined type, then mainly driving moving platen movement fast by being fixed on Quick cylinder in quiet template, mould being closed, particularly, be relative fixing by positioning and locking device between moving platen with pull bar, then pull pull bar by mold-locked by Mode-locking oil cylinder.In combined type, mode transfer structure is generally divided into following two kinds: one, in Mode-locking oil cylinder, pass through fine adjustment draw rod positions, makes pull bar tooth top agree with the tooth root position entering lock nut, locate and then lock pull bar; Two, regulate into lock nut location by actuating units such as motors, make pull bar agree with the position entering lock nut, locate and then lock pull bar.In these two kinds of mode transfer structures, four pull bars or enter lock nut and all need to increase independent power set, oil piping system complicates simultaneously, adds sizable cost, is not too applicable to middle-size and small-size two-plate injection machine.
Patent (notification number: CN201313365Y) discloses a kind of clamping apparatus of two triggers, comprise moving platen, pull bar, solid plate, pull-rod nut, pull bar pressing plate, mould shifting oil cylinder, band-type brake oil cylinder, two halves formula folding band-type brake nut, band-type brake locating shaft, band-type brake locating shaft pressing plate, drag link bearing, spring, high-voltage lock mould cylinder piston rod, high-voltage lock mould oil cylinder bonnet, high-voltage lock mould cylinder body, high-voltage lock mould oil cylinder front cover, guide copper sleeve, four pull bars of this device and the mode of connection for being completely fixed at solid plate place, band-type brake part and high-voltage lock mould part all design on rear side of moving platen, the adjustment of the band-type brake screw position of four pull bars is completely fixed with solid plate behind unified position by manually adjusting when putting together machines, the stressed length of four pull bars is just the same, the clamp force that four pull bars are shared is also just the same, so the deflection of four pull bars is also just the same.The problems such as this structure can improve locked mode precision, but still existence needs high pressure clamping device, and hydraulic system structure is very complicated, and energy consumption is high.
Utility model content
In view of this, the utility model provides a kind of self-locking clamping based on two triggers, to solve the technical problem that hydraulic system is complicated, energy consumption is high that prior art exists, proposes the low self-locking mould-locking structure of energy consumption to solve the problems of the technologies described above.
Technical solution of the present utility model is, a kind of self-locking clamping based on two triggers of following structure is provided, comprise solid plate, moving die plate, pull bar and mould shifting oil cylinder, described solid plate is fixed on one end of pull bar, described moving die plate is sheathed on the other end of pull bar, and the piston end of described mould shifting oil cylinder is connected to drive moving die plate to move with moving die plate;
Described clamping also comprises mould-locking structure, described mould-locking structure comprises and pull bar back nut one to one, with back nut back nut drive unit one to one, described pull bar is provided with the external screw thread coordinated with back nut, described back nut is combined on pull bar, the outer rim of back nut is arranged to gear-like, described back nut drive unit comprises pinion, servomotor, motor fixing frame, line slideway and the tumbler be arranged on back nut, described pinion engages with back nut outer rim, pinion is connected with servo motor output shaft, servomotor is arranged on motor fixing frame, described line slideway to be fixedly mounted on moving die plate and plane orthogonal large with moving die plate, described motor fixing frame is slidably connected with line slideway, described tumbler is connected on motor fixing frame simultaneously.
Adopt above structure, the utility model compared with prior art, have the following advantages: adopt the utility model, during matched moulds, under the effect of mould shifting oil cylinder, moving die plate is contacted with the mould on solid plate, again by driven by servomotor pinion rotation, back nut and moving die plate is driven to fit thus, then utilize and back nut is locked simultaneously, back nut is subject to the reaction force of moving die plate and the frictional force with pull bar, back nut is connected with pull rod screw, under described reaction force and frictional force, produce distortion, thus pinning back nut, friction energy simultaneously between screw thread produces stronger self-locking effect, the utility model is without the need to using Mode-locking oil cylinder, by the energy consumption utilizing the self-locking between mechanism to reduce locked mode.
As preferably, the actuating unit that described mould-locking structure also comprises bull gear and drives bull gear to rotate, described bull gear is installed on moving die plate by bearing post, and bull gear all engages to back nut respectively and drives back nut to rotate on corresponding pull bar under the driving of actuating unit.
As preferably, described tumbler is bearing, and bearing inner race is connected with back nut axial restraint, and described motor fixing frame is connected with bearing outer ring.When back nut rotates, drive bearing inner race to rotate, now because bearing outer ring is connected with motor fixing frame, therefore bearing inner race and outer ring relatively rotate thereupon, when not affecting back nut and rotating, can move forward and backward by drive motor fixed mount again.
As preferably, described bull gear is established multiple You Chi district and multiple anodontia district, described multiple You Chi districts at least with back nut one_to_one corresponding, described You Chi district and anodontia district are alternately.This is designed for and prevents the tooth on back nut and the tooth on bull gear from interfering and initiating failure, when namely needing engagement, allows You Chi district engage with back nut, when back nut seesaws fast, then makes the corresponding back nut in anodontia district, to prevent interference of tooth.
As preferably, first tooth that described You Chi district engages with back nut is scalable in bull gear radial direction, is installed on bull gear by elastic reset member.This design can prevent first tooth and back nut from interfering and causing phenomenons such as " stuck ", serves the effect of buffering, follow-up engagement can effectively be carried out.
As preferably, described clamping also comprises controller, and the output shaft of described servomotor is provided with torque sensor, and described servomotor and torque sensor are all electrically connected with controller.Judge whether torque sensor reaches setting value, if reach, control servomotor and stop operating, servomotor response is fast, can realize the fast forwarding and fast rewinding of back nut.
As preferably, described actuating unit is hydraulic motor, and described hydraulic motor is connected with driven wheel, and described driven wheel engages with bull gear.Drive bull gear to rotate by hydraulic motor, driven wheel, much smaller than bull gear, serves the effect of moment amplification.
As preferably, described moving die plate is provided with the displacement transducer moved forward and backward for detecting moving die plate or bull gear, and during die sinking, displacement transducer detects that bull gear gets back to original position, then hydraulic control motor quits work.So that accurately hydraulic control motor.
Accompanying drawing explanation
Fig. 1 is the sectional view of the utility model based on the self-locking clamping of two triggers;
Fig. 2 is the side view of the utility model based on the self-locking clamping of two triggers;
Fig. 3 is the axis side view of the utility model based on the self-locking clamping of two triggers;
As shown in the figure, 1, solid plate, 2, moving die plate, 3, pull bar, 4, mould shifting oil cylinder, 5, back nut, 6, bull gear, 6.1, You Chi district, 6.2, anodontia district, 7, front nut, 8, fuselage guide rail, 9.1, pinion, 9.2, servomotor, 9.3, motor fixing frame, 9.4, line slideway, 9.5, tumbler, 10, hydraulic motor, 11, controller, 12, torque sensor, 13, displacement transducer, 14, bearing post.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail, but the utility model is not restricted to these embodiments.
The utility model contain any make on marrow of the present utility model and scope substitute, amendment, equivalent method and scheme.To have the utility model to make the public and understand thoroughly, in following the utility model preferred embodiment, describe concrete details in detail, and do not have the description of these details also can understand the utility model completely for a person skilled in the art.In addition, the needs in order to illustrate in the accompanying drawing of the utility model, completely accurately do not draw according to actual ratio, are explained at this.
As shown in Figure 1,2 and 3, a kind of self-locking clamping based on two triggers involved by the utility model, comprise solid plate 1, moving die plate 2, pull bar 3 and mould shifting oil cylinder 4, one end of described pull bar 3 is fixed on solid plate 1, described moving die plate 2 is sheathed on the other end of pull bar 3, and the piston end of described mould shifting oil cylinder 4 is connected with moving die plate 2 to drive moving die plate 2 to move;
Described clamping also comprises mould-locking structure, described mould-locking structure comprises and pull bar 3 back nut 5 one to one, with back nut 5 back nut drive unit one to one, described pull bar 3 is provided with the external screw thread coordinated with back nut 5, described back nut 5 is combined on pull bar 3, the outer rim of back nut 5 is arranged to gear-like, described back nut drive unit comprises pinion 9.1, servomotor 9.2, motor fixing frame 9.3, line slideway 9.4 and the tumbler 9.5 be arranged on back nut 5, described pinion 9.1 engages with back nut outer rim, pinion 9.1 is connected with the output shaft of servomotor 9.2, servomotor 9.2 is arranged on motor fixing frame 9.3, described line slideway 9.4 to be fixedly mounted on moving die plate 2 and vertical with moving die plate 2, described motor fixing frame 9.3 is slidably connected with line slideway 9.4, described tumbler 9.5 is connected on motor fixing frame 9.3 simultaneously.
The actuating unit that described mould-locking structure also comprises bull gear 6 and drives bull gear 6 to rotate, described bull gear 6 is installed on moving die plate 2 by bearing post 14, and bull gear 6 all engages to back nut 5 respectively and drives back nut 5 to rotate on corresponding pull bar 3 under the driving of actuating unit.
Such scheme is further limited: pull bar is fixed on solid plate by described front nut.Described mould shifting oil cylinder 4 is connected with moving die plate 2 by mould shifting oil cylinder free bearing, alignment pin and Universal-head.Meanwhile, be provided with fuselage guide rail 8 to slide on fuselage for moving die plate 2.Described pull bar 3 is divided into two parts, is polished rod structure near solid plate 1 part, is screw-rod structure, screws for back nut 5 near moving die plate 2; The quantity of pull bar 3 is consistent with prior art, is four.The installation of described bull gear 6 can also realize in the following manner: namely on moving die plate, install a disk, described bull gear 6 is arranged on disk outer rim, is provided with steel ball therebetween, and bull gear and disk are rotatably connected, just as the structure of bearing; Also by arranging multiple bearing post 14 according to circumferential arrangement on moving die plate, described bull gear is sheathed on bearing post, and bearing post both also can allow its smooth rotation to its location.During matched moulds, drive back nut to screw by back nut drive unit to contact to moving die plate, during die sinking, back nut is then driven to leave, to reserve the space of die sinking, when driving back nut to rotate, slided on line slideway by back nut drive motor fixed mount, because motor fixing frame is connected with tumbler, the rotation of back nut can not be affected.The end of line slideway 9.4 is provided with directional at-tachment seat, to prevent motor fixing frame 9.3 from skidding off line slideway 9.4, also prevents line slideway because conduct oneself with dignity and natural torsion simultaneously.
Described tumbler 9.5 is bearing, and bearing inner race is connected with back nut axial restraint, and described motor fixing frame 9.3 is connected with bearing outer ring.
Described bull gear 6 is established multiple You Chi district 6.1 and multiple anodontia district 6.2, described multiple You Chi districts 6.1 at least with back nut 5 one_to_one corresponding, described You Chi district 6.1 and anodontia district 6.2 are alternately.An available Ge Youchi district matches with actuating unit, and certainly, actuating unit also can coordinate with the inner ring of bull gear 6 (being provided with internal tooth on inner ring).
First tooth that described You Chi district 6.1 engages with back nut 5 is scalable in bull gear 6 radial direction, is installed on bull gear 6 by elastic reset member.Such as, adopt spring as elastic reset member.
Described clamping also comprises controller 11, and the output shaft of described servomotor 9.2 is provided with torque sensor, and described servomotor 9.2 and torque sensor 12 are all electrically connected with controller 11.When back nut 5 contacts with moving die plate 2, moment of torsion rises, and detects that moment of torsion rises and reaches setting value, then control servomotor and stop operating by torque sensor.
Described actuating unit is hydraulic motor 10, and described hydraulic motor 10 is connected with driven wheel, and described driven wheel engages with bull gear 6.Drive bull gear to rotate by hydraulic motor, the driven wheel number of teeth, far fewer than the bull gear number of teeth, serves the effect of moment amplification.
Described moving die plate 2 is provided with the displacement transducer 13 moved forward and backward for detecting bull gear 6, and during die sinking, displacement transducer detects that bull gear gets back to original position, then hydraulic control motor 10 quits work." bull gear gets back to original position " refers to that bull gear rotates back original position, can using its first tooth as detected object.
Described torque sensor, displacement transducer, servomotor are all connected with controller with hydraulic motor, to realize Collaborative Control.
Based on above-mentioned self-locking two trigger clamping, a kind of folding modeling method of self-locking two trigger clamping can be formed, comprise the following steps:
Matched moulds process:
1) mould shifting oil cylinder pulls moving die plate, and moving die plate is just contacted with the mould on solid plate, and mould shifting oil cylinder quits work;
2) servomotor rotation driving pinion rotates, and pinion drives the tooth of back nut outer ring to rotate, and the rotation of driving back nut moves to back nut side to moving die plate direction simultaneously and moving die plate is fitted, and now, servomotor quits work.Servomotor quits work and to be controlled by torque sensor, and torque sensor detects that moment of torsion exceedes setting value, sends feedback signal, quits work to make it;
3) actuating unit drives bull gear to rotate, the tooth engagement that bull gear rotates through on back nut drives back nut to rotate, back nut rotates through the internal thread of its inside and engages with the external screw thread on pull bar, pull bar is out of shape and reaches the deflection corresponding with required clamp force, complete locked mode, and keep clamp force to terminate to matched moulds.Actuating unit can adopt hydraulic motor, and after hydraulic motor to settings, the pressure sensor on oil circuit sends feedback signal after oil pressure being detected, solenoid valve shuts oil circuit, and make hydraulic motor pressure be maintained to part cooling, mould assembling action completes.
Die sinking process:
1) actuating unit reversion, drives bull gear to rotate backward, thus drives back nut reversion, and when bull gear gets back to original position, clamp force disappears, and actuating unit quits work;
2) servomotor reversion drives pinion to rotate backward, and pinion drives back nut to continue to rotate backward, and the internal thread of back nut engages with pull bar outer nut, moves to desired location to leaving rear spiral shell plate direction;
3) mould shifting oil cylinder promotes moving die plate, and make the mould on moving die plate and solid plate be separated to back nut side, mould shifting oil cylinder quits work.
Below be only described with regard to the utility model preferred embodiment, but can not be interpreted as it is limitations on claims.The utility model is not only confined to above embodiment, and its concrete structure allows to change.In a word, all various changes done in the protection domain of the utility model independent claims are all in protection domain of the present utility model.
Claims (8)
1. the self-locking clamping based on two triggers, comprise solid plate (1), moving die plate (2), pull bar (3) and mould shifting oil cylinder (4), described solid plate (1) is fixed on one end of pull bar (3), described moving die plate (2) is sheathed on the other end of pull bar (3), and the piston end of described mould shifting oil cylinder (4) is connected to drive moving die plate (2) mobile with moving die plate (2); It is characterized in that:
Described clamping also comprises mould-locking structure, described mould-locking structure comprises and pull bar (3) back nut (5) one to one, with back nut (5) back nut drive unit one to one, described pull bar (3) is provided with the external screw thread coordinated with back nut (5), described back nut (5) is combined on pull bar (3), the outer rim of back nut (5) is arranged to gear-like, described back nut drive unit comprises pinion (9.1), servomotor (9.2), motor fixing frame (9.3), line slideway (9.4) and the tumbler (9.5) be arranged on back nut (5), described pinion (9.1) engages with back nut outer rim, pinion (9.1) is connected with the output shaft of servomotor (9.2), servomotor (9.2) is arranged on motor fixing frame (9.3), it is upper and vertical with moving die plate (2) that described line slideway (9.4) is fixedly mounted on moving die plate (2), described motor fixing frame (9.3) is slidably connected with line slideway (9.4), described tumbler (9.5) is connected on motor fixing frame (9.3) simultaneously.
2. the self-locking clamping based on two triggers according to claim 1; it is characterized in that: the actuating unit that described mould-locking structure also comprises bull gear (6) and drives bull gear (6) to rotate; described bull gear (6) is installed on moving die plate (2) by bearing post (14), and bull gear (6) all engages to back nut (5) respectively and drives back nut (5) above to rotate at corresponding pull bar (3) under the driving of actuating unit.
3. the self-locking clamping based on two triggers according to claim 1; it is characterized in that: described tumbler (9.5) is bearing; bearing inner race is connected with back nut axial restraint, and described motor fixing frame (9.3) is connected with bearing outer ring.
4. the self-locking clamping based on two triggers according to claim 2; it is characterized in that: described bull gear (6) establishes multiple You Chi district (6.1) and multiple anodontia district (6.2); described multiple You Chi districts (6.1) at least with back nut (5) one_to_one corresponding, described You Chi district (6.1) and anodontia district (6.2) are alternately.
5. the self-locking clamping based on two triggers according to claim 4; it is characterized in that: upper first tooth engaged with back nut (5) in described You Chi district (6.1) is scalable in bull gear (6) radial direction, is installed on bull gear (6) by elastic reset member.
6. the self-locking clamping based on two triggers according to claim 1 and 2; it is characterized in that: described clamping also comprises controller (11); the output shaft of described servomotor (9.2) is provided with torque sensor, and described servomotor (9.2) and torque sensor are all electrically connected with controller.
7. the self-locking clamping based on two triggers according to claim 2; it is characterized in that: described actuating unit is hydraulic motor (10); described hydraulic motor (10) is connected with driven wheel, and described driven wheel engages with bull gear (6).
8. the self-locking clamping based on two triggers according to claim 2; it is characterized in that: described moving die plate (2) is provided with the displacement transducer moved forward and backward for detecting bull gear (6); during die sinking; displacement transducer detects that bull gear gets back to original position, then hydraulic control motor (10) quits work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420844372.8U CN204414523U (en) | 2014-12-26 | 2014-12-26 | A kind of self-locking clamping based on two triggers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420844372.8U CN204414523U (en) | 2014-12-26 | 2014-12-26 | A kind of self-locking clamping based on two triggers |
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| Publication Number | Publication Date |
|---|---|
| CN204414523U true CN204414523U (en) | 2015-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420844372.8U Expired - Fee Related CN204414523U (en) | 2014-12-26 | 2014-12-26 | A kind of self-locking clamping based on two triggers |
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| Country | Link |
|---|---|
| CN (1) | CN204414523U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104527005A (en) * | 2014-12-26 | 2015-04-22 | 饶宾期 | Self-locking type mold closing mechanism based on two-plate machine |
-
2014
- 2014-12-26 CN CN201420844372.8U patent/CN204414523U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104527005A (en) * | 2014-12-26 | 2015-04-22 | 饶宾期 | Self-locking type mold closing mechanism based on two-plate machine |
| CN104527005B (en) * | 2014-12-26 | 2017-07-25 | 中国计量大学 | Self-locking clamping based on two triggers |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150624 Termination date: 20151226 |
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| EXPY | Termination of patent right or utility model |