CN203035872U - Elastic oscillating guide bar and slider mechanism - Google Patents
Elastic oscillating guide bar and slider mechanism Download PDFInfo
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- CN203035872U CN203035872U CN 201220725103 CN201220725103U CN203035872U CN 203035872 U CN203035872 U CN 203035872U CN 201220725103 CN201220725103 CN 201220725103 CN 201220725103 U CN201220725103 U CN 201220725103U CN 203035872 U CN203035872 U CN 203035872U
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- guide rod
- key element
- sliding pair
- pair key
- elastic
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Abstract
The utility model discloses an elastic oscillating guide bar and slider mechanism and belongs to the field of mechanical principles and theory of mechanism. The elastic oscillating guide bar and slider mechanism comprises a drive rotary arm, elastic guide bars, sliders and a frame. The elastic guide bars are connected with the sliders through revolute pairs C and are connected with the drive rotary arm through prismatic pairs B. The elastic guide bars with a plate spring K are provided, high rigidity elastic connection relation between the drive rotary arm and the sliders is established, and when angular displacement of the drive rotary arm is certain, the sliders in the parallel combination mechanism composed of the elastic oscillating guide bars and the sliders can satisfy different displacement requirements of clamping points, and multi-point synchronous reliable clamping is achieved. The elastic oscillating guide bar and slider mechanism is simple in structural design and has greatly reduced manufacturing cost.
Description
Technical field
The invention belongs to Der Grundsatz der Maschinen and mechanics field, more particularly, relate to a kind of elastics wing guide rod slide-block mechanism.
Background technique
During the design machine tool fixture, usually can run into situation about on the hair side of workpiece a plurality of positions being clamped simultaneously synchronously being held.In order to guarantee all to clamp reliably to be added and hold workpiece respectively stepping up a position, traditional way has two kinds substantially: one is according to the design philosophy of " single-point position drive ", namely at each clamping point an independently drive transmission device is set; Another way is to adopt the design philosophy of " the multiple spot bit synchronization of band load balancing mechanism drives ", namely adopt a drive unit to drive a plurality of clampings simultaneously and carry out member, in order to guarantee that each clamps the execution member and all can play clamping action reliably, need special load balancing mechanism be set clamp carrying out between member and the drive unit, as leverage etc.The former needs a plurality of drive transmission devices, and the latter needs custom-designed load balancing mechanism, and the result is that the structure of machine tool fixture is comparatively complicated, manufacturing expense is higher.
Chinese patent application number: the patent document of 201010613123.4 applyings date: 2010-12-29, a kind of machine tool fixture fastening device is disclosed, this mechanism comprises drive unit, drive link, push rod, bull stick, push rod, carry out bar, described drive unit is fixedly installed in the mechanism, described drive link one end and drive unit are in transmission connection, the other end and push rod are movably connected, described bull stick one end and mechanism flexibly connect, the other end and push rod, push rod flexibly connects, the described push rod the other end flexibly connects with the execution bar, described execution bar middle part flexibly connects by a fulcrum and mechanism, and the front end of execution bar is provided with the clamping element for clamping work pieces.The advantage of this invention is that volume is little, and compact structure can remedy drive unit swing insufficient space and the installation that brings or the restriction of use aspect.But the deficiency of the technological scheme of this invention is that the mechanism of this invention is too complicated, the manufacture cost height.
Summary of the invention
1. the technical problem that will solve
The demand that synchronous clamping is arranged in a plurality of clamping points position at machine tool fixture, and comparatively complicated, the manufacturing expense problem of higher of the structure of machine tool fixture in the prior art, the invention provides a kind of elastics wing guide rod slide-block mechanism, be combining unit in parallel with this mechanism, adopt the mode of centralized driving, can realize machine tool fixture multiple spot bit synchronization reliable grip.
2. technological scheme
Principle of the present invention: by elasticity guide rod member is set, realize driving the big rigidity resilient connection between pivoted arm and the slide block, and constitute elastics wing guide rod slide-block mechanism by driving pivoted arm, elasticity guide rod, slide block and frame.This mechanism has under the situation that the input displacement that drives pivoted arm remains unchanged, the kinetic characteristic that the displacement amount of slide block changes with its load size; Be elementary cell with this elastics wing guide rod slide-block mechanism, carry out the parallel connection combination by the mode of centralized driving, the output link of each elementary cell clamps as one and carries out member, realizes the multiple spot position of clamped object is clamped.
Purpose of the present invention is achieved through the following technical solutions.
A kind of elastics wing guide rod slide-block mechanism of the present invention, it comprises: drive pivoted arm, elasticity guide rod, slide block and frame, described driving pivoted arm is installed on the described frame by revolute pair A, and described slide block is installed on the described frame by sliding pair D; Described elasticity guide rod comprises three parts from left to right successively: revolute pair key element C I, flat spring K and sliding pair key element B II, revolute pair key element on described revolute pair key element C I and the described slide block constitutes revolute pair C, and the sliding pair key element on described sliding pair key element B II and the described driving pivoted arm constitutes sliding pair B; Described elasticity guide rod connects with described slide block by revolute pair C, and described elasticity guide rod connects with described driving pivoted arm by sliding pair B.
Preferably, the sliding pair key element on the described driving pivoted arm is female surface, and the sliding pair key element B II of described elasticity guide rod is male surface.
Preferably, the sliding pair key element on the described driving pivoted arm is male surface, and the sliding pair key element B II of described elasticity guide rod is female surface.
Preferably, the sliding pair key element on the described slide block is female surface or male surface.
The cross section of the revolute pair key element C I that preferably, contacts with described slide block on the described elasticity guide rod is for circular.
3. beneficial effect
Than prior art, the invention has the advantages that:
(1) the present invention has designed a kind of elasticity guide rod, this elasticity guide rod comprises revolute pair key element C I, flat spring K and sliding pair key element B II, the elasticity guide rod connects with slide block by revolute pair C, the elasticity guide rod connects with the driving pivoted arm by sliding pair B, the flat spring K that employing has a spring function is that the present invention designs the most ingenious part as the main body of elasticity guide rod, can effectively realize driving the big rigidity resilient connection between pivoted arm and the slide block, and constitute the slide-block mechanism that has the elastics wing guide rod by driving pivoted arm, elasticity guide rod, slide block;
(2) than the mentality of designing of " single-point position drive " of the prior art, the multiple spot bit synchronization of load balancing mechanism " band drive ", the present invention has broken through traditional design, realized under the certain prerequisite of the angular displacement that drives pivoted arm, each slide block in the parallel combined mechanism that is made of elastics wing guide rod slide block can adapt to and respectively steps up the different displacement demand in a position, reach the purpose that the multiple spot bit synchronization is reliably stepped up, and structural design is simple, and manufacturing expense reduces greatly.
Description of drawings
Fig. 1 is the structural representation of sliding rod type elastics wing guide rod slide-block mechanism;
Fig. 2 is three groups of sliding rod type elastics wing guide rod slide block parallel combined mechanism plan views;
Fig. 3 is the axonometric drawing of sliding rod type elasticity guide rod;
Fig. 4 is the structural representation of sliding bush type elastics wing guide rod slide-block mechanism;
Fig. 5 is the axonometric drawing of sliding bush type elasticity guide rod.
Number in the figure title: 1, drive pivoted arm; 2, elasticity guide rod; 3, slide block; 4, frame; 5, be held workpiece.
Embodiment
Below in conjunction with Figure of description and specific embodiment, the present invention is described in detail.
What present embodiment 1 designed is sliding rod type elastics wing guide rod slide-block mechanism.Concrete structure is as follows.
As shown in Figure 1, the sliding rod type elastics wing guide rod slide-block mechanism of present embodiment 1 comprises driving pivoted arm 1, elasticity guide rod 2, slide block 3 and 4 four constituent elements of frame.
As shown in Figure 3, the main body of elasticity guide rod 2 is flat spring K, the left end of flat spring K is provided with revolute pair key element C I, the right-hand member of flat spring K is provided with sliding pair key element B II, revolute pair key element on revolute pair key element C I and the slide block 3 constitutes revolute pair C, and sliding pair key element B II constitutes sliding pair B with the sliding pair key element that drives on the pivoted arm 1.The revolute pair key element C I that contacts with slide block 3 on the elasticity guide rod 2 is for circular.The lower end surface of slide block 3 be held workpiece 5 and contact.
Drive pivoted arm 1 and be installed on the frame 4 by revolute pair A, slide block 3 is installed on the frame 4 by sliding pair D, and elasticity guide rod 2 connects with slide block 3, connects with driving pivoted arm 1 by sliding pair B by revolute pair C.
When driving pivoted arm 1 rotates around it secondary A swing, move by the guide passage direction of elasticity guide rod 2 drive slide blocks 3 along its sliding pair D, the size H(of the displacement amount of the vertical direction of slide block 3 and frame 4 is that the rotation center of circle of revolute pair A is to the horizontal equivalent of the vertical straight line in place, the center of circle of the circular cross-section of the revolute pair key element C I of elasticity guide rod 2), the angular displacement of driving pivoted arm 1 and the stiffness coefficient K(of elasticity guide rod 2 can guarantee that 3 pairs of clamping point positions of slide block adapt to and the clamping force demand in the error of its Normal direction because the stiffness coefficient of elasticity guide rod 2 is through custom-designed) relevant with the external force F on acting on slide block 3:
As Fig. 1, Fig. 3, the sliding pair key element on the driving pivoted arm 1 of present embodiment 1 is female surface, and sliding pair key element B II is male surface.Concrete structure is as follows: the outer surface of the sliding pair key element B II on the elasticity guide rod 2 is the cylndrical surface; As Fig. 2, drive the sliding pair structural element that pivoted arm 1 is provided with three inner cylindrical surfaces, respectively with three groups of sliding rod type elastics wing guide rod slide-block mechanisms in elasticity guide rod 2 on external cylindrical surface sliding pair key element B II match, formation is by the combined mechanism that drives three sliding rod type elastics wings of pivoted arm 1 centralized driving guide rod slide-block mechanism, and the group number of sliding rod type elastics wing guide rod slide-block mechanism can be selected as required.
What present embodiment 2 designed is sliding bush type elastics wing guide rod slide-block mechanism, and its basic system is with embodiment 1.Its difference is, the cross section of the revolute pair key element C I that contacts with described slide block 3 on the elasticity guide rod 2 is rectangle, in addition, and as shown in Figure 4 and Figure 5, sliding pair key element on the driving pivoted arm 1 of present embodiment 2 is male surface, and the sliding pair key element B II on the elasticity guide rod 2 is female surface.Concrete structure is as follows: as Fig. 5, the sliding pair key element B II on the elasticity guide rod 2 is provided with inner cylindrical surface; As Fig. 4, the sliding pair structural element that drives on the pivoted arm 1 is provided with external cylindrical surface, and the two cooperates formation sliding pair B.As required, the group number by sliding bush type elastics wing guide rod slide-block mechanism in the parallel combined mechanism that drives pivoted arm 1 centralized driving is selectable.
In addition, be female surface or male surface for the sliding pair key element on the slide block 3 among embodiment 1, the embodiment 2, with above-mentioned sliding pair B, can design according to actual clamping demand, and the sectional shape of slide block 3 also can design conglobate, square, rectangle or other shapes according to actual needs.
Below schematically the invention and mode of execution thereof are described, this description does not have restricted, and shown in the accompanying drawing also is one of mode of execution of the invention, and practical structure is not limited thereto.So, if those of ordinary skill in the art is enlightened by it, under the situation that does not break away from this creation aim, without the creationary mode of structure similar to this technological scheme and the embodiment of designing, all should belong to the protection domain of this patent.
Claims (5)
1. elastics wing guide rod slide-block mechanism, it comprises: drive pivoted arm (1), elasticity guide rod (2), slide block (3) and frame (4), it is characterized in that: described driving pivoted arm (1) is installed on the described frame (4) by revolute pair A, and described slide block (3) is installed on the described frame (4) by sliding pair D; Described elasticity guide rod (2) comprises three parts from left to right successively: revolute pair key element C I, flat spring K and sliding pair key element B II, revolute pair key element on described revolute pair key element C I and the described slide block (3) constitutes revolute pair C, and the sliding pair key element on described sliding pair key element B II and the described driving pivoted arm (1) constitutes sliding pair B; Described elasticity guide rod (2) connects with described slide block (3) by revolute pair C, and described elasticity guide rod (2) connects with described driving pivoted arm (1) by sliding pair B.
2. a kind of elastics wing guide rod slide-block mechanism according to claim 1, it is characterized in that: the sliding pair key element on the described driving pivoted arm (1) is female surface, the sliding pair key element B II of described elasticity guide rod (2) is male surface.
3. a kind of elastics wing guide rod slide-block mechanism according to claim 1, it is characterized in that: the sliding pair key element on the described driving pivoted arm (1) is male surface, the sliding pair key element B II of described elasticity guide rod (2) is female surface.
4. according to claim 2 or 3 described a kind of elastics wing guide rod slide-block mechanisms, it is characterized in that: the sliding pair key element on the described slide block (3) is female surface or male surface.
5. according to claim 2 or 3 described a kind of elastics wing guide rod slide-block mechanisms, it is characterized in that: described elasticity guide rod (2) is gone up the cross section of the revolute pair key element C I that contacts with described slide block (3) for circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220725103 CN203035872U (en) | 2012-12-26 | 2012-12-26 | Elastic oscillating guide bar and slider mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220725103 CN203035872U (en) | 2012-12-26 | 2012-12-26 | Elastic oscillating guide bar and slider mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN203035872U true CN203035872U (en) | 2013-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220725103 Expired - Fee Related CN203035872U (en) | 2012-12-26 | 2012-12-26 | Elastic oscillating guide bar and slider mechanism |
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| CN (1) | CN203035872U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047383A (en) * | 2012-12-26 | 2013-04-17 | 南京工程学院 | Slider mechanism with elastic swing guide rods |
-
2012
- 2012-12-26 CN CN 201220725103 patent/CN203035872U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047383A (en) * | 2012-12-26 | 2013-04-17 | 南京工程学院 | Slider mechanism with elastic swing guide rods |
| CN103047383B (en) * | 2012-12-26 | 2015-11-04 | 南京工程学院 | A kind of elastics wing guide rod slide-block mechanism |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130703 Termination date: 20131226 |