A kind of change step mechanism
Technical field
The present invention relates to automated machine field, particularly a kind of change step mechanism.
Background technology
At present, in order to reduce equipment, wait for aborning the time of material, abundant raising equipment mobility, conventionally the spacing of supplied materials product is designed to half step distance, but due to space constraint or technological characteristics requirement, in the production process of rear end, product is placed is spaced apart large step pitch, so need product to become step pitch in carrying operation; Simultaneously in order to reduce the production material cost of product, increase economic efficiency, as certain metalwork, its roughly technological process be punching press, electroplate, cut and pack, in punching course, in order to make full use of material, conventionally product spacing is designed into minimum as much as possible, but on the packing carrier band using in shipment, the spacing that product is placed is designed to large step pitch conventionally, so in being cut to packaging process, need to become step pitch to product; At present, once two kinds of change step pitches are the most conventional, a kind of is the change step mechanism that adopts two members, a member maintains static, another is driven and is carried out open and close action by cylinder, be opened for large step pitch, closure is half step distance, be two products of every circulation carrying, another kind of for adopting the change step mechanism of three members, motionless in the middle of a member is fixed on, two other member is positioned at both sides, by different cylinders, driven and carried out open and close action respectively, above-mentioned two schemes has certain limitation, and degree of automation is not high.
Therefore need a kind of new technical scheme to address the above problem.
Summary of the invention
The problem and shortage existing for above-mentioned prior art, the object of this invention is to provide a kind of change step mechanism ,Ben mechanism simple in structure, and handling efficiency is high.
For achieving the above object, the technical solution used in the present invention is a kind of change step mechanism, comprises thumb, forefinger, middle finger, the third finger, little finger, cylinder, floating junction, contiguous block, pushing block, block, limiting stopper, guide rod, sucker and gas-tpe fitting; Described thumb, forefinger, middle finger, the third finger and little finger length are arranged in order and are separately installed with a sucker and gas-tpe fitting from long to short, from right to left, described thumb left side is provided with draw-in groove, limiting stopper is fixed in this draw-in groove, and the inner side of described limiting stopper is provided with the step suitable with forefinger, middle finger, the third finger and little finger size; Guide rod one end is connected through little finger, the third finger, middle finger and forefinger and thumb, and its other end and limiting stopper are connected, this guide rod and forefinger, middle finger, the third finger and little finger bearing fit; Described cylinder is fixedly mounted on the thumb back side, and be connected by floating junction and contiguous block, one end of described contiguous block and pushing block is connected, the other end of this pushing block is successively through thumb, forefinger, middle finger, the third finger and little finger, and be connected with limiting stopper, block be positioned at little finger left side and with pushing block sliding block joint.
As preferably, one end that pushing block is connected with limiting stopper is echelon form, and is provided with successively from right to left the groove suitable with forefinger, middle finger, the third finger and little finger width.
As preferably, on the left of limiting stopper, be provided with a rectangular channel, the size of this rectangular channel and block is suitable.
As preferably, guide rod quantity is two, lays respectively at the both sides of pushing block.
As preferably, thumb, forefinger, middle finger, the third finger and little finger quantity are several.
As preferably, block size is greater than described little finger inside for the size of the groove through pushing block.
The present invention compared to existing technology, its advantage provides a kind of change step mechanism for the Handling device in production facilities for the present invention, this mechanism structure is simple, adopt several members to form change step mechanism of the present invention, can effectively improve handling efficiency, thereby greatly improve the production efficiency of equipment, improve production capacity, reach good economic benefit.
Accompanying drawing explanation
Fig. 1 is the structural representation of closure state of the present invention;
Fig. 2 is the structural representation of open mode of the present invention;
Thumb 1, forefinger 2, middle finger 3, the third finger 4, little finger 5, cylinder 6, floating junction 7, contiguous block 8, pushing block 9, block 10, limiting stopper 11, guide rod 12, sucker 13 and gas-tpe fitting 14.
The specific embodiment
As depicted in figs. 1 and 2, thumb 1, forefinger 2, middle finger 3, the third finger 4 and little finger 5 length are arranged in order and are separately installed with a gas-tpe fitting 14 that is positioned at the sucker 13 of its bottom and is positioned at bottom from long to short, from right to left, thumb 1 left side is provided with draw-in groove, limiting stopper 11 is fixed in this draw-in groove, and the inner side of limiting stopper 11 is provided with the step suitable with forefinger 2, middle finger 3, the third finger 4 and little finger 5 sizes; One end of two guide rods 12 is all connected with thumb 1 through little finger 5, nameless 4, middle finger 3, forefinger 2, and its other end is all connected with limiting stopper 11, these two guide rods 12 all with forefinger 2, middle finger 3, the third finger 4 and little finger 5 bearing fits; Cylinder 6 is fixedly mounted on the back side of thumb 1, and be connected by floating junction 7 and contiguous block 8, contiguous block 8 is connected with one end of pushing block 9, the other end of this pushing block 9 is connected with limiting stopper 11 through thumb 1, forefinger 2, middle finger 3, the third finger 4, little finger 5 successively, and the other end of pushing block 9 is echelon form, and be provided with successively from right to left the groove suitable with forefinger 2, middle finger 3, the third finger 4 and little finger 5 width; Pushing block 9 is positioned at the centre of two guide rods 12, block 10 be positioned at little finger 5 left sides and with pushing block 9 sliding block joints, the left side of limiting stopper 11 is provided with a rectangular channel, the size of this rectangular channel and block 10 is suitable, this rectangular channel just in time can hold this block 10, and the size of block 10 is greater than little finger 5 inside for the size of the groove through pushing block 9.
The change step mechanism that the present invention is comprised of thumb 1, forefinger 2, middle finger 3, the third finger 4 and little finger 5 these five members, can set the quantity of member according to the actual requirements, and this quantitative range is more reasonable between 3 to 20; Sucker 13 and gas-tpe fitting 14 are for being connected external vacuum system and picking and placeing product.
As shown in Figure 1, when this mechanism is closed, cylinder 6 stretches out by floating junction 7 and drives the block 10 on pushing block 9 to move right, drive forefinger 2, middle finger 3, the third finger 4 and little finger 5 to move right along guide rod 12, when time close to each other between member and member, the present invention is in closure state, the step pitch that now becomes step mechanism is half step distance, described half step distance by thumb 1, forefinger 2, middle finger 3, nameless 4 and self width of little finger 5 determine, and this width can design according to the spacing of supplied materials product.The present invention adopts five members, and thumb 1, forefinger 2, middle finger 3, the third finger 4 and little finger 5, can once pick up five products, can require to increase or reduce member according to actual production.
As shown in Figure 2, cylinder 6 is retracted, by floating junction 7, drive pushing block 9 to move right, forefinger 2, middle finger 3, the third finger 4 and little finger 5 are along guide rod 12 to left movement, step on limiting stopper 11 matches with the groove on pushing block 9, forefinger 2, middle finger 3, the third finger 4 and little finger 5 are correspondingly attached on the step of limiting stopper 11, this time, mechanism was in open mode, the step pitch of mechanism is now large step pitch, described large step pitch is determined by position and the size of the groove of pushing block 9 and the step of limiting stopper 11, the particular location of the step of the groove of its pushing block 9 and limiting stopper 11 and size can design according to the spacing of back segment production technology demand, through so once carrying, the product of five half step distances can be become to large step pitch, carry out again follow-up processes.
Same, the present invention can oppositely use this change step mechanism according to actual needs, by large step pitch, becomes half step distance, can carry out efficiently the upper carrying product of asynchronous distance.