CN107336261A - A kind of pitch-changing mechanism - Google Patents
A kind of pitch-changing mechanism Download PDFInfo
- Publication number
- CN107336261A CN107336261A CN201710521625.6A CN201710521625A CN107336261A CN 107336261 A CN107336261 A CN 107336261A CN 201710521625 A CN201710521625 A CN 201710521625A CN 107336261 A CN107336261 A CN 107336261A
- Authority
- CN
- China
- Prior art keywords
- sliding block
- cylindrical cam
- guide rail
- pitch
- active cylindrical
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J18/00—Arms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25J—MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES
- B25J9/00—Programme-controlled manipulators
- B25J9/0009—Constructional details, e.g. manipulator supports, bases
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- Engineering & Computer Science (AREA)
- Robotics (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention discloses a kind of pitch-changing mechanism, the mechanism mainly includes frame, active cylindrical cam axle, guide rail, at least two sliding blocks and power set；The power set are fixed in frame, pass through transmission belt and the active cylindrical cam axis connection, the active cylindrical cam axle is at least provided with two cam rails vertically, and sliding block quantity and corresponding displacement demand needed for determine the helical pitch of the cam rail with number；The active cylindrical cam axle is connected by driven member with the sliding block, and the sliding block is connected with the guide rail, and the guide rail is fixed in frame, and the sliding block is for linear motion along the guide rail.The present invention has the characteristics of simple in construction, clear principle, precision is of a relatively high, versatile, easy to operate, use cost is low and easy to control.
Description
Technical field
The present invention relates to a kind of device with displacement, more particularly to a kind of pitch-changing mechanism, the mechanism can be fixed in machine
On device people's arm member to realize it is multigroup automation displacement variable pitch device.
Background technology
During automatic loading/unloading is produced and processed, sometimes require that the distance between workpiece increases or reduced than previous station
And multi-disc workpiece above and below simultaneously is needed, if using manual operation, operating efficiency is low and labor intensity is big.Attempting to carry out certainly
During dynamicization loading and unloading, if the distance between multi-disc workpiece displacement is arranged on transfer mechanism progress displacement, need to carry out at least two
The mechanism of secondary displacement, increase cost and debugging inconvenience.
The content of the invention
Given this background, it is necessary to a kind of variable pitch device is provided, to solve the above problems.The present invention provides a kind of displacement machine
Structure, it has, and simple in construction, clear principle, precision are of a relatively high, versatile, easy to operate, use cost is low and controlling party
Just the features such as.
In order to solve above-mentioned technical problem, the present invention is achieved by the following technical solutions：
A kind of pitch-changing mechanism, the mechanism mainly include frame, active cylindrical cam axle, guide rail, at least two sliding blocks and moved
Power apparatus；The power set are fixed in frame, pass through transmission belt and the active cylindrical cam axis connection, the master
Dynamic cylindrical cam axle is at least provided with two cam rails, helical pitch and the number sliding block number needed for of the cam rail vertically
Amount and corresponding displacement demand determine；The active cylindrical cam axle is connected by driven member with the sliding block, the sliding block with
The guide rail connection, the guide rail are fixed in frame, and the sliding block is for linear motion along the guide rail.
In described pitch-changing mechanism, the motor in the power set, which rotates, drives belt dragging active cylindrical cam axle
Rotate so as to the reciprocating motion with movable slider and static, to realize that the change in location of sliding block reaches job requirement.
Due to different displacement requirements of one's work, the corresponding cam rail of different sliding blocks might have intersection.In order that from
Moving part passes through cross transition part, as needed can be designed to the driven member end convex around vertical active cylinder
The bicircular arcs sliding block that axle axis direction rotates.The radius of sliding block circular arc, its size depend on the minimum curvature half of contour curve
Footpath.
The problem of design of the bicircular arcs sliding block driven member not only solves cam rail crossing instances, and can lead to
The design to cam rail is crossed, is formed by connecting using two oppositely oriented helical grooves, realizes that motor only turns in one direction
The dynamic deflecting campaign that can be achieved with sliding block.In order that sliding block is in every cam rail top intersection upset, it is necessary to makes cam
Guide groove top guide groove contour line radius is more than bicircular arcs slide block wheel profile radius.The sliding block and active cylindrical cam shaft design can
To realize that the bidirectional reciprocating of driven member moves without using reversing arrangement, reduce the complexity of mechanism, improve the use of motor
Life-span.
The present invention can be arranged on mechanical arm and realize its motion in space, can be according to actual behaviour on sliding block
Make installs fixture sucker etc., realize object crawl or absorption etc..
Due to using above-mentioned technical proposal, a kind of pitch-changing mechanism provided by the invention, having compared with prior art so
Beneficial effect：
The present invention rotates active cylindrical cam axle by power set, and sliding block is realized by the design to cam rail
Various displacements motion.During overcoming automatic loading/unloading, sometimes require that the distance between workpiece increase than previous station or
Reduce and need while the working difficult point of multi-disc workpiece up and down, improve operating efficiency.
The present invention has simple in construction, clear principle, precision is of a relatively high, versatile, easy to operate, use cost is low
And the features such as easy to control.
Brief description of the drawings
Fig. 1 is the dimensional structure diagram of variable pitch device in the scheme of the embodiment of the present invention one；
Fig. 2 is the dimensional structure diagram of variable pitch device other direction in the scheme of the embodiment of the present invention one；
Fig. 3 is the dimensional structure diagram for removing a part of frame in the scheme of the embodiment of the present invention one；
Fig. 4 is the structural representation of active cylindrical cam axle in the scheme of the embodiment of the present invention one；
Dimensional structure diagram when Fig. 5 is equal difference variable pitch device most narrow spacing in the scheme of the embodiment of the present invention one；
Fig. 6 be the scheme of the embodiment of the present invention one in equal difference variable pitch device maximum away from when dimensional structure diagram；
Fig. 7 is that the embodiment of the present invention two only rotates the deflecting campaign that can be achieved with sliding block in one direction and cam rail is handed over
The structural representation that driven member designs during fork situation.
Embodiment
Below in conjunction with drawings and examples, the present invention is described in further detail, but is not intended as limiting the present invention
The foundation of system.
Fig. 1 Fig. 2 and Fig. 3 are refer to, is that a kind of equal difference pitch-changing mechanism in the scheme of the embodiment of the present invention one contains 4 sliding blocks
The dimensional structure diagram of equal difference pitch-changing mechanism, the mechanism mainly includes frame 1,2, two cylinders of active cylindrical cam axle are led
3, four sliding blocks 4 of rail and power set 6；The power set 6 are fixed in frame 1, pass through transmission belt and the active
Cylindrical cam axle 2 connects, and the active cylindrical cam axle 2 is provided with four cam rails 5 vertically, and the cam rail 5 is led
Journey determines according to the displacement demand of four sliding blocks 4；The design of the cam rail 5 needs to meet by rotating active cylindrical cam
Axle 2 come realize make driven member with movable slider 4 various displacements work requirement.The active cylindrical cam axle 2 by four from
Moving part is connected with four sliding blocks 4, and each sliding block 4 is sleeved on the guide rail 3 by two horizontal through hole thereon, the guide rail
3 are fixed in frame 1, and four sliding blocks 4 are for linear motion along guide rail 3 on guides 3；Each driven member one end is fastened on cunning
The top of block 4, the other end are inlaid in the cam rail 5 on the active cylindrical cam axle 2.
By the design to the overhead cam guide groove 5 of active cylindrical cam axle 2 realize movement of the driven member in cam rail 5 from
And the displacement motion with movable slider 4 on guides 3, controlled by the rotation of the control active cylindrical cam of power set 6 axle 2
Driven member movement in the cam rail 5 of active cylindrical cam axle 2 is so as to realize the displacement movement of various needs with movable slider 4.
In a kind of equal difference pitch-changing mechanism of the embodiment, in order to realize the equal difference motion change of sliding block 4, outer cam is led
The helical pitch of groove is 3 times of inner side helical pitch.The design of the cam rail 5 is as shown in schematic diagram 4, by controlling active cylindrical cam axle
2 reciprocating rotation carrys out the movement of control slide block 4.In order to ensure the equal difference displacement of sliding block 4, the design of cam rail 5 is extremely important,
The present embodiment Fig. 4 show the schematic diagram of 4 slider cam guide barrel constructions design, and specific cam rail design can be according to sliding block 4
Change to determine.
Realize that sliding block 4 reaches the displacement movement of various needs by controlling the rotation of active cylindrical cam axle 2.Fig. 5, figure
6 be respectively the present embodiment minimum and maximum displacement when structural representation.
Due to different displacement requirements of one's work, the corresponding cam rail of different sliding blocks might have intersection.Fig. 7 is shown
The embodiment of the present invention two only in one direction rotate can be achieved with it is driven when deflecting campaign and the cam rail crossing instances of sliding block
The structural representation of part design, embodiment two can set driven member end in order that driven member passes through cross transition part
The bicircular arcs sliding block 7 that can be rotated around vertical camshaft line direction is calculated as, referring to shown in the bicircular arcs sliding block 7 in Fig. 7.
Only rotated in one direction by the achievable motor of design to cam rail in embodiment two and can be achieved with sliding block
Displacement motion.In order that sliding block is in every cam rail top intersection upset, it is necessary to makes top groove contour line radius big
In bicircular arcs slide block wheel profile radius, as shown in the label 8 in Fig. 7.
In embodiment one and embodiment two, ball can be used inside the slide block guide rail hole, turns sliding friction
Become rolling friction to reduce frictional resistance.
The present invention can be arranged on mechanical arm during real work and realize its motion in space, can on sliding block 4
With according to practical operation installs fixture or sucker etc..Realize needs during various displacement work.
Claims (3)
- A kind of 1. pitch-changing mechanism, it is characterised in that：The mechanism mainly includes frame, active cylindrical cam axle, guide rail, at least two Sliding block and power set；The power set are fixed in frame, are connected by transmission belt and the active cylindrical cam axle Connect, the active cylindrical cam axle is at least provided with two cam rails vertically, the helical pitch of the cam rail and number according to Required sliding block quantity and corresponding displacement demand determine；The active cylindrical cam axle is connected by driven member with the sliding block, The sliding block is connected with the guide rail, and the guide rail is fixed in frame, and the sliding block is for linear motion along the guide rail.
- 2. pitch-changing mechanism according to claim 1, it is characterised in that：The upper end of slide block passes through roller follower and active The cam rail of cylindrical cam axle is connected.
- A kind of 3. pitch-changing mechanism according to claim 1, it is characterised in that：The upper end of slide block driven member is designed to The bicircular arcs sliding block rotated around vertical active cylindrical cam axle axis direction.Cam rail top contour line radius is more than bicircular arcs Slide block wheel profile radius.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710521625.6A CN107336261A (en) | 2017-06-30 | 2017-06-30 | A kind of pitch-changing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710521625.6A CN107336261A (en) | 2017-06-30 | 2017-06-30 | A kind of pitch-changing mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107336261A true CN107336261A (en) | 2017-11-10 |
Family
ID=60218135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710521625.6A Pending CN107336261A (en) | 2017-06-30 | 2017-06-30 | A kind of pitch-changing mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107336261A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989972A (en) * | 2017-12-01 | 2018-05-04 | 湖南新硕自动化科技有限公司 | A kind of parallel variable pitch device of cam |
| CN109015715A (en) * | 2018-09-13 | 2018-12-18 | 重庆环视高科技有限公司 | A kind of bottle inspector robot |
| CN109717223A (en) * | 2019-03-18 | 2019-05-07 | 成都康河机械设备有限公司 | Dumpling machine laminating mechanism |
| CN110155716A (en) * | 2019-06-17 | 2019-08-23 | 深圳市美卡达科技有限公司 | A kind of XY twocouese automatic adjustable-pitch device |
| CN110785075A (en) * | 2019-10-28 | 2020-02-11 | 深圳市英赛特机械科技有限公司 | Cylindrical cam transmission structure and plug-in device of plug-in machine |
| CN110805678A (en) * | 2019-10-28 | 2020-02-18 | 深圳市英赛特机械科技有限公司 | Variable-lead cylindrical cam transmission mechanism and wire cutting device of component inserter |
| CN114806809A (en) * | 2022-06-09 | 2022-07-29 | 南京溯远基因科技有限公司 | PCR hot cover subassembly |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4415126A (en) * | 1980-12-24 | 1983-11-15 | Nitto Boseki Co., Ltd. | Traverse motion for use with apparatus for winding continuous elongate elements |
| CN102229359A (en) * | 2011-06-09 | 2011-11-02 | 西北工业大学 | Cylindrical cam flapping wing driving mechanism |
| CN202500973U (en) * | 2012-03-15 | 2012-10-24 | 深圳市精实机电科技有限公司 | Lead-variable transmission mechanism |
| CN104522110A (en) * | 2014-11-26 | 2015-04-22 | 湖南品篁高新技术有限公司 | Automatic noodle grabbing and placing machine |
-
2017
- 2017-06-30 CN CN201710521625.6A patent/CN107336261A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4415126A (en) * | 1980-12-24 | 1983-11-15 | Nitto Boseki Co., Ltd. | Traverse motion for use with apparatus for winding continuous elongate elements |
| CN102229359A (en) * | 2011-06-09 | 2011-11-02 | 西北工业大学 | Cylindrical cam flapping wing driving mechanism |
| CN202500973U (en) * | 2012-03-15 | 2012-10-24 | 深圳市精实机电科技有限公司 | Lead-variable transmission mechanism |
| CN104522110A (en) * | 2014-11-26 | 2015-04-22 | 湖南品篁高新技术有限公司 | Automatic noodle grabbing and placing machine |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989972A (en) * | 2017-12-01 | 2018-05-04 | 湖南新硕自动化科技有限公司 | A kind of parallel variable pitch device of cam |
| CN109015715A (en) * | 2018-09-13 | 2018-12-18 | 重庆环视高科技有限公司 | A kind of bottle inspector robot |
| CN109015715B (en) * | 2018-09-13 | 2024-02-09 | 重庆环视高科技有限公司 | Bottle inspection robot |
| CN109717223A (en) * | 2019-03-18 | 2019-05-07 | 成都康河机械设备有限公司 | Dumpling machine laminating mechanism |
| CN109717223B (en) * | 2019-03-18 | 2024-04-09 | 成都康河机械设备有限公司 | Pressing mechanism of dumpling machine |
| CN110155716A (en) * | 2019-06-17 | 2019-08-23 | 深圳市美卡达科技有限公司 | A kind of XY twocouese automatic adjustable-pitch device |
| CN110785075A (en) * | 2019-10-28 | 2020-02-11 | 深圳市英赛特机械科技有限公司 | Cylindrical cam transmission structure and plug-in device of plug-in machine |
| CN110805678A (en) * | 2019-10-28 | 2020-02-18 | 深圳市英赛特机械科技有限公司 | Variable-lead cylindrical cam transmission mechanism and wire cutting device of component inserter |
| CN114806809A (en) * | 2022-06-09 | 2022-07-29 | 南京溯远基因科技有限公司 | PCR hot cover subassembly |
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Legal Events
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20171110 |
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| WD01 | Invention patent application deemed withdrawn after publication |