CN2851726Y

CN2851726Y - Fixed position reciprocating mechanism

Info

Publication number: CN2851726Y
Application number: CN 200520132816
Authority: CN
Inventors: 卢彦豪
Original assignee: Individual
Current assignee: JIUYUAN ELECTRONIC CO Ltd
Priority date: 2005-11-15
Filing date: 2005-11-15
Publication date: 2006-12-27
Anticipated expiration: 2015-11-15

Abstract

The utility model relates to a fixed position reciprocating mechanism, which comprises a first rotating arm, a second rotating arm, a third rotating arm and a first spring, wherein the first rotating arm is provided with a pulley; the second rotating arm is provided with an opened concave slot for accommodating the pulley, and is coupled to the first rotating arm in a rotating way; the concave slot is provided with a first edge wall and a second edge wall; the position of the second edge wall parallel to the first edge wall is provided with a corresponding slit; the pulley is composed of two group of pulleys; the first group of pulleys are coupled to the first edge wall in a sliding way for executing reciprocating slide; the second group of pulleys are coupled to the second edge wall in a sliding way for executing reciprocating slide; the second edge wall can not contact the first group of pulleys; simultaneously, the first edge wall can not contact the second group of pulleys; the third rotating arm is coupled to the second rotating arm in a rotating way; the first spring is coupled to the first edge wall and the second edge wall in an elastic way; the concave slot of the second rotating arm can also be in an enclosed type, and two edge walls of the concave slot are symmetrical in size for accommodating the pulleys. The utility model has the advantages of good stability and repeatability, and easy maintenance.

Description

The fixed position traverse mechanism

(1) technical field:

The utility model provides a kind of fixed position traverse mechanism, belongs to the mechanical pendulum dynamic positioning system.

(2) background note:

Known swing positioning device is mounted with rotating shaft 101,111 as shown in Figure 1 above the pedestal 100, and drive link 11,12,13, and swing arm 10 constitutes a fixing angle (illustrating as example with 90 degree among the figure) with drive link 13; Drive link 11,12 interconnects by connection part 115, and drive link 12,13 interconnects by connection part 125, and drive link 11 is a rotating center with rotating shaft 111, and swing arm 10 is a rotating center with rotating shaft 101; When connection part 115 was rotated down according to the arrow indication, connection part 125 can move to the left side, is moved upward and drive swing arm 10.

It is shown in Figure 2 to see also known techniques, and Fig. 2 shows that connection part 125 can move to the right, moves and drive swing arm 10 when connection part 115 rotates up according to the arrow indication downwards.So, just can move between P1, P2 in the tip of swing arm 10.The start machine can be settled in the tip of swing arm 10, and for example: (pick and place) machine is settled in pickup, the needs that provide the location to come and go.The deficiency of above-mentioned prior art is: when wear and tear in the axle center, system can be because the relation of back clearance (backlash) causes vibrations and noise, and prior shortcoming is: positioning precision is affected.

(3) novel content:

The purpose of this utility model provides a kind of fixed position traverse mechanism, and it uses the location coupling of groove in conjunction with spring, makes the repeatability of activated position stable, and the location reproducibility is good; Can conveniently adjust simultaneously the relation between swing position and the positioning means, easy maintenance.

A kind of fixed position of the utility model traverse mechanism includes:

First pivoted arm has pulley, carries out first reciprocating swing according to first rotating shaft;

Second pivoted arm has open chase groove, holds aforementioned pulley among the chase groove; Rotation is coupled in the first aforementioned pivoted arm, along with first reciprocating swing of this first pivoted arm, and carries out second reciprocating swing according to second rotating shaft; This chase groove has the first limit wall and the second limit wall; This second limit wall is provided with the slit of a correspondence in wall parallel position place, first limit; This pulley is made of two groups of pulleys, and first group of pulley slides and be coupled in the round sliding movement of this first limit wall execution; Second group of pulley slides and is coupled in the round sliding movement of this second limit wall execution; This second limit wall can not touch this first group of pulley; Simultaneously, this first limit wall can not touch this second group of pulley yet;

The 3rd pivoted arm, rotation is coupled in this second pivoted arm, along with second reciprocating swing of this second pivoted arm, and carries out the 3rd reciprocating swing according to this second rotating shaft; And

First spring, elasticity be coupled this first limit wall and this second limit wall are so that the limit wall can fully be carried out sliding movement with corresponding pulley contact.

Wherein, the 3rd group of pulley slides and is coupled in this second limit wall, carries out the sliding movement that comes and goes synchronously with this second group of pulley.

Wherein, first spring, elasticity be coupled this first limit wall and this second limit wall are so that the limit wall can fully be carried out sliding movement with corresponding pulley contact.

Wherein, second spring, elasticity is coupled in this second rotating shaft, makes to have longitudinal elasticity; And cam, be coupled in this second rotating shaft, when this cam rotation, can promote this second rotating shaft and move up and down, cooperate required.

Wherein, the chase groove in this second pivoted arm also can be enclosed, and two limit walls of chase groove are that symmetrical size is held pulley among the chase groove; And rotation is coupled in this first pivoted arm 21, along with first reciprocating swing of this first pivoted arm, carries out P3 to second reciprocating swing between the P4 according to second rotating shaft; And the 3rd pivoted arm, rotation is coupled in this second pivoted arm, along with second reciprocating swing of this second pivoted arm, and carries out P5 to the 3rd reciprocating swing between the P6 according to this second rotating shaft.

A kind of fixed position of the utility model traverse mechanism, its advantage is: stable good reproducibility, the location reproducibility is good; Can easily adjust simultaneously the relation between swing position and the positioning means, be easy to safeguard.Particularly when rotating shaft core wore and tore, spring closely touched roller with the limit wall of swing arm, does not produce the back clearance phenomenon, can not cause vibrations and noise, the positioning precision height.

(4) description of drawings:

The known swing positioning device of Fig. 1 schematic representation (one).

The known swing positioning device of Fig. 2 schematic representation (two).

Fig. 3 the utility model fixed position traverse mechanism embodiment one top view action (one).

Fig. 4 the utility model fixed position traverse mechanism embodiment one top view action (two).

Fig. 5 the utility model fixed position traverse mechanism embodiment two front views.

Fig. 6 the utility model fixed position traverse mechanism embodiment three front views.

Fig. 7 the utility model fixed position traverse mechanism embodiment four front views.

Fig. 8 the utility model fixed position traverse mechanism embodiment five front views.

Number in the figure is as follows:

100 pedestals, 10 swing arms, 101,111 rotating shafts limit, 11,12,13 drive links

115,125 connection parts, 200 pedestals, 21,22,23 pivoted arms

210,220 rotating shafts, 211 pulleys, 221,222 limit walls, 225 slits

226,229 chase grooves, 231,232 springs, 25 cams, 251 rotating shafts

(5) embodiment:

See also Fig. 3, shown in Figure 4; A kind of fixed position of the utility model traverse mechanism is mounted with rotating shaft 210,220 on pedestal 200;

This first pivoted arm 21 has pulley 211, carries out P1 to first reciprocating swing between the P2 according to first rotating shaft 210;

This second pivoted arm 22 has chase groove 226, holds pulley 211 among chase groove 226; And rotation is coupled in this first pivoted arm 21, along with first reciprocating swing of this first pivoted arm 21, carries out P3 to second reciprocating swing between the P4 according to second rotating shaft 220; And

The 3rd pivoted arm 23, rotation is coupled in this second pivoted arm 22, along with second reciprocating swing of this second pivoted arm 22, and carries out P5 to the 3rd reciprocating swing between the P6 according to this second rotating shaft 220.

See also shown in Figure 5ly, shown chase groove 226 among earlier figures 3 and Fig. 4, and two limit walls of chase groove 226 are symmetry sizes with closed design; Then be to show that chase groove 229 also can be an open by design among Fig. 5, chase groove 229 has the asymmetric first limit wall 221 and the second limit wall 222;

This second limit wall 222 is provided with the slit 225 of a correspondence in the first limit wall, 221 parallel position places, pulley 211, constituted by three groups of pulleys of upper, middle and lower, and the first group of pulley that is positioned at central authorities slides and is coupled in the first aforementioned limit wall 221 and carries out round sliding movement; The 3rd group of pulley that is positioned at second group of top pulley and is positioned at the below, the common slip is coupled in the round sliding movement of these second limit wall, 222 execution; This second limit wall 222 can not touch this first group of pulley; Simultaneously, this first limit wall 221 can not touch this second group of pulley yet.

See also shown in Figure 6ly, Fig. 6 has shown another preferred configuration, promptly is that the 3rd group of pulley can be save, and only adopts two groups of pulleys.

See also shown in Figure 7, on the basis of Fig. 5 and Fig. 6 design, can have additional first spring 231 again, elasticity be coupled this first limit wall 221 and this second limit wall 222, so that the first limit wall 221 can be fully and first group of corresponding pulley contact, carry out sliding movement; The second limit wall 222 can be fully and second group of corresponding pulley contact, carries out sliding movement.

See also shown in Figure 8ly, shown among Fig. 8 can more have additional on the base of design of Fig. 3 to Fig. 7: second spring 232, elasticity are coupled in this second rotating shaft 220, make it have longitudinal elasticity; And cam 25, be coupled in this second rotating shaft 220, when this cam 25 rotates according to rotating shaft 251, can promote this second rotating shaft 220 and move up and down, cooperate required.

Claims

1, a kind of fixed position traverse mechanism, it is characterized in that: it includes:

First pivoted arm has pulley;

Second pivoted arm has open chase groove, holds aforementioned pulley among the chase groove; Rotation is coupled in the first aforementioned pivoted arm; This chase groove has the first limit wall and the second limit wall; This second limit wall is provided with the slit of a correspondence in wall parallel position place, first limit; This pulley is made of two groups of pulleys, and first group of pulley slides and be coupled in the round sliding movement of this first limit wall execution; Second group of pulley slides and is coupled in the round sliding movement of this second limit wall execution; This second limit wall can not touch this first group of pulley; Simultaneously, this first limit wall can not touch this first group of pulley yet;

The 3rd pivoted arm, rotation is coupled in this second pivoted arm; And

First spring, elasticity are coupled in this first limit wall and this second limit wall.

2, a kind of fixed position according to claim 1 traverse mechanism, it is characterized in that: it more includes: the 3rd group of pulley slides and is coupled in this second limit wall, carries out the sliding movement that comes and goes synchronously with this second group of pulley.

3, a kind of fixed position according to claim 1 traverse mechanism, it is characterized in that: it more includes: make its second spring with longitudinal elasticity, elasticity is coupled in this second rotating shaft; And cam, be coupled in this second rotating shaft.

4, a kind of fixed position according to claim 1 traverse mechanism, it is characterized in that: the chase groove in this second pivoted arm is enclosed, and two limit walls of chase groove are the symmetry sizes, hold pulley among the chase groove, and rotation is coupled in this first pivoted arm; And the 3rd pivoted arm rotation be coupled in this second pivoted arm.