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CN102601947B - Driving mechanism for die-assembling thrust base - Google Patents

Driving mechanism for die-assembling thrust base Download PDF

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Publication number
CN102601947B
CN102601947B CN201210073622.8A CN201210073622A CN102601947B CN 102601947 B CN102601947 B CN 102601947B CN 201210073622 A CN201210073622 A CN 201210073622A CN 102601947 B CN102601947 B CN 102601947B
Authority
CN
China
Prior art keywords
tailgate
thrust bearing
centre bore
screw
hole
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.)
Expired - Fee Related
Application number
CN201210073622.8A
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Chinese (zh)
Other versions
CN102601947A (en
Inventor
李凌丰
茅旭飞
张振然
管灵波
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang University ZJU
Original Assignee
Zhejiang University ZJU
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhejiang University ZJU filed Critical Zhejiang University ZJU
Priority to CN201210073622.8A priority Critical patent/CN102601947B/en
Publication of CN102601947A publication Critical patent/CN102601947A/en
Application granted granted Critical
Publication of CN102601947B publication Critical patent/CN102601947B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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  • Transmission Devices (AREA)
  • Mounting Of Bearings Or Others (AREA)
  • Rolling Contact Bearings (AREA)

Abstract

The invention discloses a driving mechanism for a die-assembling thrust base, which comprises two guide rods and a ball screw, wherein the guide rods and the ball screw are arranged on a tail plate, and a ball nut is arranged on the center hole of the thrust base; holes at two sides of the thrust base are internally provided with a copper sleeve respectively, and the copper sleeves are respectively sleeved on the two guide rods, and can slide along with the guide rods; a servo motor is taken as the power moving the thrust base, the running of a motor is transmitted to the ball screw by a synchronous toothed belt and a belt wheel, the ball screw only can move along with a linear line, and can move along with the axes of the guide rods along with the thrust base, and a movable template is driven by a dynamic-belt dynamic-toggle rod mechanism, so that the die can be disassembled and assembled, and die locking force can be provided. The whole driving mechanism for the die-assembling thrust base is compact in structure, high in intensity, high in carrying capacity, stable to run, driven by the servo motor and a ball screw assembly, quick to move, and exact to control, so that the defects of large noise, difficulty in maintenance, high energy consumption, and the like of the driving mechanism for the die-assembling thrust base can be overcome.

Description

The transmission mechanism of matched moulds thrust bearing
Technical field
The present invention relates to a kind of injection machine matched moulds parts, relate in particular to a kind of transmission mechanism of matched moulds thrust bearing.
Background technology
In the matched moulds parts of injection machine, seesawing by the power amplification of elbow-bar mechanism of thrust bearing, obtains the opening and closing movement of moving platen.Yet traditional fluid power system, after continuously operation and oil temperature change, its characteristic is difficult to keep, and control accuracy is affected, and hydraulic system noise is large, maintenance difficulty, energy consumption are high.
Summary of the invention
The object of the invention is to, for defects such as conventional hydraulic drive system noise are large, maintenance is difficult, energy consumption is high, provides a kind of transmission mechanism of matched moulds thrust bearing.The present invention is driven by servomotor, by tooth form synchronous belt and ball screw assembly,, converts rotatablely moving of motor to thrust bearing move forward and backward, and realizes the opening and closing movement of moving platen.
The object of the invention is to be achieved through the following technical solutions: a kind of transmission mechanism of matched moulds thrust bearing, it comprises: feed screw nut, synchronous pulley, pressure ring, rear screw rod bushing, angular contact bearing, screw mandrel fixed cover, screw mandrel flange, front screw rod bushing, thrust bearing, two guide posts, ball nut ball-screw and tailgates; Wherein, described synchronous pulley is connected with one end of ball-screw by flat key, and fastening by feed screw nut; Ball-screw one end cantilever support is in angular contact bearing, and the outer ring of angular contact bearing is installed in screw mandrel fixed cover; In the both sides of angular contact bearing, front screw rod bushing and rear screw rod bushing are installed respectively, front screw rod bushing is fixed by screw mandrel flange, and rear screw rod bushing is fixed by pressure ring, and screw mandrel flange and pressure ring are fastened on the both ends of the surface of screw mandrel fixed cover.Screw mandrel fixed cover is installed in the tailgate centre bore of tailgate; Ball nut is fixed in the thrust bearing centre bore of thrust bearing, and ball nut is enclosed within outside ball-screw; One end of a guide post is fixedly mounted in the tailgate left hole of tailgate, and the other end is successively through the interior fixing copper sheathing of thrust bearing left hole of thrust bearing and the supported hole on tailgate left socle; One end of another root guide post is fixedly mounted in the tailgate right ports of tailgate, and the other end is successively through the interior fixing copper sheathing of thrust bearing right ports of thrust bearing and the supported hole on tailgate right support.
Further, described tailgate is comprised of rear surface and the tailgate left socle, the tailgate right support that are fixed on rear surface, on rear surface, there are tailgate centre bore and the tailgate left hole and two the tailgate right ports that are symmetrically distributed in tailgate centre bore both sides, on tailgate left socle, there is a supported hole coaxial with tailgate left hole, on tailgate right support, there is a supported hole coaxial with tailgate right ports; The axis of the axis of tailgate left hole, tailgate right ports is parallel with the axis of centre bore, and in same plane.
Further, the center of described thrust bearing is thrust bearing centre bore, bilateral symmetry distribution thrust bearing left hole and the thrust bearing right ports of thrust bearing centre bore, and each communicates thrust bearing left hole and thrust bearing right ports with a lubricating oil hand-hole; Tailgate centre bore equates with the distance between thrust bearing left hole with distance and thrust bearing centre bore between tailgate left hole; The axis of thrust bearing centre bore, thrust bearing left hole and thrust bearing right ports is parallel and in same plane.
The invention has the beneficial effects as follows, whole thrust bearing transmission mechanism compact conformation, takes up space little.Thrust bearing is led by two guide posts, and has copper sheathing and lubricating oil, and motion is steadily quiet, and resistance is little, and energy consumption is low.The structural design of the each several parts such as tailgate, thrust bearing, guide post, fixed cover, makes that thrust bearing transmission mechanism intensity is large, bearing capacity is strong, thereby large clamp force can be provided.By driven by servomotor, ball-screw auxiliary driving, is swift in motion, precise control.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, patent of the present invention is further illustrated.
Fig. 1 is tailgate cutaway view;
Fig. 2 is thrust bearing partial sectional view;
Fig. 3 is the transmission mechanism overall schematic of matched moulds thrust bearing;
Fig. 4 is power transfer path schematic perspective view.
In figure: tailgate left hole 1, tailgate centre bore 2, tailgate right ports 3, tailgate left socle 4, tailgate right support 5, thrust bearing left hole 6, lubricating oil hand-hole 7, thrust bearing centre bore 8, thrust bearing right ports 9, feed screw nut 10, synchronous pulley 11, pressure ring 12, rear screw rod bushing 13, angular contact bearing 14, screw mandrel fixed cover 15, screw mandrel flange 16, front screw rod bushing 17, copper sheathing 18, thrust bearing 19, guide post 20, ball nut 21, ball-screw 22, tailgate 23.
The specific embodiment
As shown in Figure 1, tailgate 23 is comprised of rear surface and the tailgate left socle 4, the tailgate right support 5 that are fixed on rear surface, on rear surface, there are tailgate centre bore 2 and the tailgate left hole 1 and two the tailgate right ports 3 that are symmetrically distributed in tailgate centre bore 2 both sides, on tailgate left socle 4, there is a supported hole coaxial with tailgate left hole 1, on tailgate right support 5, there is a supported hole coaxial with tailgate right ports 3.The axis of the axis of tailgate left hole 1, tailgate right ports 3 is parallel with the axis of centre bore 2, and in same plane.
As shown in Figure 2, thrust bearing 19 center is thrust bearing centre bore 8, bilateral symmetry distribution thrust bearing left hole 6 and the thrust bearing right ports 9 of thrust bearing centre bore 8, and thrust bearing left hole 6 and thrust bearing right ports 9 respectively communicate with a lubricating oil hand-hole 7.Tailgate centre bore 2 equates with the distance between thrust bearing left hole 6 with distance and thrust bearing centre bore 8 between tailgate left hole 1.The axis of thrust bearing centre bore 8, thrust bearing left hole 6 and thrust bearing right ports 9 is parallel and in same plane.
As shown in Figure 3 and Figure 4, the transmission mechanism of matched moulds thrust bearing of the present invention comprises: feed screw nut 10, synchronous pulley 11, pressure ring 12, rear screw rod bushing 13, angular contact bearing 14, screw mandrel fixed cover 15, screw mandrel flange 16, front screw rod bushing 17, thrust bearing 19, two guide posts 20, ball nut 21 ball-screws 22 and tailgates 23.
Synchronous pulley 11 is connected with one end of ball-screw 22 by flat key, and for preventing that synchronous pulley 11 from deviating from, outside is fastening by feed screw nut 10; Ball-screw 22 one end cantilever support are in angular contact bearing 14, and the outer ring of angular contact bearing 14 is installed in screw mandrel fixed cover 15.Before install respectively the both sides of angular contact bearing 14, screw rod bushing 17 and rear screw rod bushing 13 rotate and fixing part with isolation.Front screw rod bushing 17 is fixing by screw mandrel flange 16, and rear screw rod bushing 13 is fixed by pressure ring 12, to form the enclosure space of bearing portions.Screw mandrel flange 16 and pressure ring 12 use screw fastenings are in the both ends of the surface of screw mandrel fixed cover 15.Screw mandrel fixed cover 15 is installed in the tailgate centre bore 2 of tailgate 23.Ball nut 21 is fixed in the thrust bearing centre bore 8 of thrust bearing 19, and ball nut 21 is enclosed within outside ball-screw 22.
One end of a guide post 20 is fixedly mounted in the tailgate left hole 1 of tailgate 23, and the other end is successively through the interior fixing copper sheathing 18 of thrust bearing left hole 6 of thrust bearing and the supported hole on tailgate left socle 4.One end of another root guide post 20 is fixedly mounted in the tailgate right ports 3 of tailgate 23, and the other end is successively through the interior fixing copper sheathing 18 of thrust bearing right ports 9 of thrust bearing and the supported hole on tailgate right support 5; Two guide post 20 axis are parallel, equidistant, and copline.
The course of work of the present invention is as shown in Figure 4: motor is arranged on the left surface of tailgate 23, and the rotation of motor is passed to ball-screw 22 by synchronous cog belt and synchronous pulley 11, the power moving as thrust bearing 19.When ball-screw 22 rotates, ball nut 21 can not rotate, and can only move along the axis of ball-screw 22, so the axis along guide post 20 moves together with thrust bearing 19.By regulating the rotary speed of motor and point-to-point speed and the direction that direction of rotation can be controlled thrust bearing 19, and the motion of thrust bearing 19 drives elbow-bar mechanism to drive moving platen, realizes die sinking, the mould assembling action of moving platen, and clamp force is provided.

Claims (1)

1. the transmission mechanism of a matched moulds thrust bearing, it is characterized in that, it comprises: feed screw nut (10), synchronous pulley (11), pressure ring (12), rear screw rod bushing (13), angular contact bearing (14), screw mandrel fixed cover (15), screw mandrel flange (16), front screw rod bushing (17), thrust bearing (19), two guide posts (20), ball nut (21), ball-screw (22) and tailgate (23); Wherein, described synchronous pulley (11) is connected with one end of ball-screw (22) by flat key, and fastening by feed screw nut (10); Ball-screw (22) one end cantilever support is in angular contact bearing (14), and the outer ring of angular contact bearing (14) is installed in screw mandrel fixed cover (15); Front screw rod bushing (17) and rear screw rod bushing (13) are installed respectively in the both sides of angular contact bearing (14), front screw rod bushing (17) is fixing by screw mandrel flange (16), rear screw rod bushing (13) is fixing by pressure ring (12), and screw mandrel flange (16) and pressure ring (12) are fastened on the both ends of the surface of screw mandrel fixed cover (15); Screw mandrel fixed cover (15) is installed in the tailgate centre bore (2) of tailgate (23); Ball nut (21) is fixed in the thrust bearing centre bore (8) of thrust bearing (19), and ball nut (21) is enclosed within outside ball-screw (22); One end of a guide post (20) is fixedly mounted in the tailgate left hole (1) of tailgate (23), and the other end is successively through the interior fixing copper sheathing (18) of thrust bearing left hole (6) of thrust bearing and the supported hole on tailgate left socle (4); One end of another root guide post (20) is fixedly mounted in the tailgate right ports (3) of tailgate (23), and the other end is successively through the interior fixing copper sheathing (18) of thrust bearing right ports (9) of thrust bearing and the supported hole on tailgate right support (5); Described tailgate (23) is comprised of rear surface and the tailgate left socle (4), the tailgate right support (5) that are fixed on rear surface, on rear surface, there is tailgate centre bore (2) and be symmetrically distributed in tailgate left hole (1) and two tailgate right ports (3) of tailgate centre bore (2) both sides, on tailgate left socle (4), there is a supported hole coaxial with tailgate left hole (1), on tailgate right support (5), there is a supported hole coaxial with tailgate right ports (3); The axis of the axis of tailgate left hole (1), tailgate right ports (3) is parallel with the axis of centre bore (2), and in same plane; The center of described thrust bearing (19) is thrust bearing centre bore (8), the bilateral symmetry distribution thrust bearing left hole (6) of thrust bearing centre bore (8) and thrust bearing right ports (9), each communicates thrust bearing left hole (6) and thrust bearing right ports (9) with a lubricating oil hand-hole (7); Distance between tailgate centre bore (2) and tailgate left hole (1) and the distance phase between thrust bearing centre bore (8) and thrust bearing left hole (6); The axis of thrust bearing centre bore (8), thrust bearing left hole (6) and thrust bearing right ports (9) is parallel and in same plane.
CN201210073622.8A 2012-03-20 2012-03-20 Driving mechanism for die-assembling thrust base Expired - Fee Related CN102601947B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210073622.8A CN102601947B (en) 2012-03-20 2012-03-20 Driving mechanism for die-assembling thrust base

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210073622.8A CN102601947B (en) 2012-03-20 2012-03-20 Driving mechanism for die-assembling thrust base

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CN102601947A CN102601947A (en) 2012-07-25
CN102601947B true CN102601947B (en) 2014-07-16

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103072243A (en) * 2012-12-23 2013-05-01 浙江大学 Ball screw pair-driven clamping mechanism
CN108081563A (en) * 2017-12-06 2018-05-29 珠海格力电器股份有限公司 Clamping mechanism and injection molding machine with same
CN109813975A (en) * 2019-03-19 2019-05-28 北京电子科技职业学院 Four axial brake devices and distribution of charges measuring mechanism

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4329070A1 (en) * 1992-08-31 1994-03-10 Nissei Plastics Ind Co Motor=driven mechanism to open and close injection mould - moves one supported mould plate by set of spindles whose ends engage nuts turned by endless toothed belt and two-directional motor
JP2866314B2 (en) * 1994-12-21 1999-03-08 住友重機械工業株式会社 Mold clamping device
CN101733910A (en) * 2008-11-26 2010-06-16 北京化工大学 Combination driving-type compound die mechanism of full electric injection molding machine
CN101977750A (en) * 2008-03-18 2011-02-16 东洋机械金属株式会社 Molding machine
CN202540663U (en) * 2012-03-20 2012-11-21 浙江大学 Transmission mechanism of compound die thrust block

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4329070A1 (en) * 1992-08-31 1994-03-10 Nissei Plastics Ind Co Motor=driven mechanism to open and close injection mould - moves one supported mould plate by set of spindles whose ends engage nuts turned by endless toothed belt and two-directional motor
JP2866314B2 (en) * 1994-12-21 1999-03-08 住友重機械工業株式会社 Mold clamping device
CN101977750A (en) * 2008-03-18 2011-02-16 东洋机械金属株式会社 Molding machine
CN101733910A (en) * 2008-11-26 2010-06-16 北京化工大学 Combination driving-type compound die mechanism of full electric injection molding machine
CN202540663U (en) * 2012-03-20 2012-11-21 浙江大学 Transmission mechanism of compound die thrust block

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Granted publication date: 20140716

Termination date: 20160320