CN104467270A - Drive structure of ball screw of injection molding machine - Google Patents
Drive structure of ball screw of injection molding machine Download PDFInfo
- Publication number
- CN104467270A CN104467270A CN201310412850.8A CN201310412850A CN104467270A CN 104467270 A CN104467270 A CN 104467270A CN 201310412850 A CN201310412850 A CN 201310412850A CN 104467270 A CN104467270 A CN 104467270A
- Authority
- CN
- China
- Prior art keywords
- ball screw
- motor
- spline
- bearing
- drive structure
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/06—Means for converting reciprocating motion into rotary motion or vice versa
- H02K7/061—Means for converting reciprocating motion into rotary motion or vice versa using rotary unbalanced masses
- H02K7/063—Means for converting reciprocating motion into rotary motion or vice versa using rotary unbalanced masses integrally combined with motor parts, e.g. motors with eccentric rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
- H02K7/081—Structural association with bearings specially adapted for worm gear drives
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/08—Structural association with bearings
- H02K7/085—Structural association with bearings radially supporting the rotary shaft at only one end of the rotor
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to a drive structure of a ball screw of an injection molding machine. The drive structure comprising a ball screw and a motor is characterized in that a bearing is installed at one end of a rotor of the motor and is fixed at a bearing seat by a bearing pressing plate; the bearing seat is fixedly connected with a mounting seat of the ball screw; and one end of the ball screw passes through the bearing seat and is in transmission connection with the motor in a spline connection mode. A synchronous belt and a coupler are removed, the motor and the ball screw are transmitted based on the spline connection, and the radial force is carried by the bearing seat. And the high mounting precision is guaranteed. The internal spline is used for transmitting the torque; the screw rod of 3 screw channels with 45-degree rectangular teeth is used for transmission; and the lead of the screw rod is increased. Moreover, the structure is simple and compact; the mounting precision is high; the transmission synchronous performance is good; an identical effect of the elastic coupler connection can be realized; directly-driven ball screw motion can be realized; maintenance is not required; and the cost is saved.
Description
Technical field
The present invention relates to a kind of Drive Structure of injection molding machine ball screw.
Background technology
Ball screw is a kind of transmission actuator of the motion that is in line by convert rotational motion, because of the advantage such as have transmission accuracy and efficiency is high and frictional resistance is little, is widely used in various industrial equipment and precision instrument.Current most domestic injection molding machine belongs to hydraulic drive injection molding machine, and energy consumption is high, along with reaching its maturity and environmental protection and energy-conservation needs of servomotor technology, the appearance of fully electric injection machine, power-driven system has casted off once and for all the oil pressure actuated system that full hydraulic press oil pump motor produces, and adopt servomotor Direct driver, drive mechanism adopts ball screw and synchronous belt, although increased substantially the control precision of injection molding machine dynamical system, also the machinery noise problem of hydraulic oil to the pollution of environment and generation is solved, but during due to synchronous belt drive, often there is following following problem: postponing appears in (1) action, must be squeezed during startup and could occur action, (2) belt has inertia, and when servomotor action stops, the action of output also can continue portion of time, (3) the pliability meeting produce power loss of belt, (4) belt replacing frequency is higher, and maintenance cost is high.Therefore need to design a kind of Drive Structure being exclusively used in the ball screw of injection mechanism of injection machine.
Summary of the invention
Technical problem to be solved by this invention is the Drive Structure providing a kind of simple and compact for structure, installation accuracy is high, drive coordination is good injection molding machine ball screw for the above-mentioned state of the art.
The present invention solves the problems of the technologies described above adopted technical scheme: a kind of Drive Structure of injection molding machine ball screw, comprise ball screw and motor, it is characterized in that: one end of the rotor of described motor is provided with bearing, bearing is fixed in bearing pedestal by bearing plate, bearing pedestal is fixedly connected with the mount pad of described ball screw, and one end of ball screw is connected with motor-driven through the mode of bearing pedestal by splined.
As improvement, described spline is made up of the internal spline of working in coordination and external splines, external splines is set in one end of ball screw, be fixedly connected with ball screw by spline briquetting, inner spline housing is located at outside external splines, and the cylindrical outer surface of internal spline and the rotor inner wall of motor offset and with rotor synchronous axial system.
As improvement, described spline is rectangular spline, pressure angle 45 degree, and tooth pitch is 9 ~ 11mm, adopts 3 spiral shell road transmissions.
Improve again, the mount pad of described ball screw is provided with a transducer, the other end of described motor is provided with for sensor-lodging and the encoder controlled ball screw activity, and described encoder is arranged in the housing of motor by encoder holder, and is fixed by bonnet.
Compared with prior art, the invention has the advantages that: cancel Timing Belt and shaft coupling, motor and ball screw are by splined transmission, radial load is born by bearing pedestal, ensure higher installation accuracy simultaneously, adopt internal spline transmitting torque, the screw drive of 3 Luo Dao of rectangular teeth 45 degree, the helical pitch of screw rod strengthens.The present invention is simple and compact for structure, and installation accuracy is high, drive coordination good, can reach and connect identical effect with spring coupling, and realizes the motion of the ball screw of Direct driver, and Maintenance free, has saved cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the driving mechanism of the embodiment of the present invention.
Embodiment
Below in conjunction with accompanying drawing embodiment, the present invention is described in further detail.
As shown in Figure 1, the Drive Structure of the injection molding machine ball screw of the present embodiment, comprise ball screw 1, motor 2, the mount pad 3 of ball screw, bearing pedestal 4, encoder 10 and transducer 31 etc., ball screw 1 is supported in mount pad 3, transducer 31 is arranged on mount pad 3, motor 2 comprises motor casing 23, rotor 22 and stator 21, one end of rotor 22 is provided with bearing 5, bearing 5 is fixed in bearing pedestal 4 by bearing plate 6, bearing pedestal 4 is coaxially fixedly connected with the mount pad 3 of ball screw 1, one end of ball screw 1 is in transmission connection by the mode of splined and motor 2 through bearing pedestal 4, spline is made up of the internal spline 7 of working in coordination and external splines 8, external splines 8 is set in the end of ball screw 1, be fixedly connected with by spline briquetting 9 bolt one end with ball screw 1, internal spline 7 is set in outside external splines 8, the cylindrical outer surface of internal spline 7 and rotor 22 inwall of motor 2 offset and with rotor 22 synchronous axial system, one end bolt of internal spline 7 is fixedly connected with rotor 22, internal spline 7 and external splines 8 are rectangular spline, pressure angle 45 degree, tooth pitch is 9 ~ 11mm, adopt 3 spiral shell road transmissions, such employing internal spline 7 transmitting torque, the helical pitch of screw rod strengthens, and cancel Timing Belt and shaft coupling, make structure more simply compact, bearing pedestal 4 is adopted to bear radial load, ensure higher installation accuracy simultaneously, to reach the effect be connected with spring coupling, and realize the injection molding machine ball screw of Direct driver, encoder 10 is arranged on the other end of motor 1, encoder 10 is arranged in motor casing 23 by encoder holder, and fixed by bonnet 11, encoder 10 is for receiving sensor 31 signal and control ball screw 1 action, improves the synchronism of transmission.
Claims (4)
1. the Drive Structure of an injection molding machine ball screw, comprise ball screw and motor, it is characterized in that: one end of the rotor of described motor is provided with bearing, bearing is fixed in bearing pedestal by bearing plate, bearing pedestal is fixedly connected with the mount pad of described ball screw, and one end of ball screw is connected with motor-driven through the mode of bearing pedestal by splined.
2. Drive Structure according to claim 1, it is characterized in that: described spline is made up of the internal spline of working in coordination and external splines, external splines is set in one end of ball screw, be fixedly connected with ball screw by spline briquetting, inner spline housing is located at outside external splines, and the cylindrical outer surface of internal spline and the rotor inner wall of motor offset and with rotor synchronous axial system.
3. Drive Structure according to claim 2, is characterized in that: described spline is rectangular spline, pressure angle 45 degree, and tooth pitch is 9 ~ 11mm, adopts 3 spiral shell road transmissions.
4. the Drive Structure according to claim 1 or 2 or 3, it is characterized in that: the mount pad of described ball screw is provided with a transducer, the other end of described motor is provided with for sensor-lodging and the encoder controlled ball screw activity, described encoder is arranged in the housing of motor by encoder holder, and is fixed by bonnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310412850.8A CN104467270A (en) | 2013-09-12 | 2013-09-12 | Drive structure of ball screw of injection molding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310412850.8A CN104467270A (en) | 2013-09-12 | 2013-09-12 | Drive structure of ball screw of injection molding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104467270A true CN104467270A (en) | 2015-03-25 |
Family
ID=52912827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310412850.8A Pending CN104467270A (en) | 2013-09-12 | 2013-09-12 | Drive structure of ball screw of injection molding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104467270A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106142483A (en) * | 2015-04-22 | 2016-11-23 | 江苏天源试验设备有限公司 | A kind of precise injection machine |
| CN106594304A (en) * | 2016-12-30 | 2017-04-26 | 能发伟业铁岭阀门股份有限公司 | Dual-sealing butterfly valve with overhaul sealing ring driven by servo motor |
| CN109904990A (en) * | 2019-03-06 | 2019-06-18 | 深圳市领略数控设备有限公司 | A kind of encoder divergence type direct driving motor |
| CN115366338A (en) * | 2022-09-21 | 2022-11-22 | 博创智能装备股份有限公司 | Motor direct-drive mechanism for injection molding machine injection mechanism |
| CN117001967A (en) * | 2023-10-07 | 2023-11-07 | 博创智能装备股份有限公司 | Injection molding machine with high repetition precision and control system thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1863660A (en) * | 2003-09-13 | 2006-11-15 | 德马格艾戈泰克有限公司 | Injection assembly for injection molding machine |
| CN1988993A (en) * | 2004-07-26 | 2007-06-27 | 住友重机械工业株式会社 | Injection apparatus |
| CN102126278A (en) * | 2010-01-17 | 2011-07-20 | 宁波长飞亚塑料机械制造有限公司 | Injection device |
| CN102666173A (en) * | 2009-12-21 | 2012-09-12 | Ntn株式会社 | Sensor-equipped bearing device for wheel having integrated in-wheel motor |
-
2013
- 2013-09-12 CN CN201310412850.8A patent/CN104467270A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1863660A (en) * | 2003-09-13 | 2006-11-15 | 德马格艾戈泰克有限公司 | Injection assembly for injection molding machine |
| CN1988993A (en) * | 2004-07-26 | 2007-06-27 | 住友重机械工业株式会社 | Injection apparatus |
| CN102666173A (en) * | 2009-12-21 | 2012-09-12 | Ntn株式会社 | Sensor-equipped bearing device for wheel having integrated in-wheel motor |
| CN102126278A (en) * | 2010-01-17 | 2011-07-20 | 宁波长飞亚塑料机械制造有限公司 | Injection device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106142483A (en) * | 2015-04-22 | 2016-11-23 | 江苏天源试验设备有限公司 | A kind of precise injection machine |
| CN106142483B (en) * | 2015-04-22 | 2024-02-23 | 江苏天源试验设备有限公司 | Precise injection molding machine |
| CN106594304A (en) * | 2016-12-30 | 2017-04-26 | 能发伟业铁岭阀门股份有限公司 | Dual-sealing butterfly valve with overhaul sealing ring driven by servo motor |
| CN109904990A (en) * | 2019-03-06 | 2019-06-18 | 深圳市领略数控设备有限公司 | A kind of encoder divergence type direct driving motor |
| CN115366338A (en) * | 2022-09-21 | 2022-11-22 | 博创智能装备股份有限公司 | Motor direct-drive mechanism for injection molding machine injection mechanism |
| CN117001967A (en) * | 2023-10-07 | 2023-11-07 | 博创智能装备股份有限公司 | Injection molding machine with high repetition precision and control system thereof |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150325 |