CN216234795U

CN216234795U - Automatic change displacement mechanism

Info

Publication number: CN216234795U
Application number: CN202122866345.3U
Authority: CN
Inventors: 黄勇; 雷钰琛
Original assignee: Wuhan Shen'an Intelligent System Co ltd
Current assignee: Wuhan Shen'an Intelligent System Co ltd
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-04-08
Anticipated expiration: 2031-11-22

Abstract

The utility model relates to the technical field of mechanical fixtures, in particular to an automatic variable pitch mechanism which comprises a linkage assembly, wherein a plurality of movable sliding blocks are arranged on sliding blocks of a linkage guide rail sliding block, two adjacent movable sliding blocks are connected through a positive and negative screw rod, a right-handed nut and a left-handed nut, a rotating hexagonal passes through an upper synchronous wheel hole of an upper linkage assembly and a lower linkage assembly at the rear end of a cross beam, a speed reducing motor assembly is used for driving the positive and negative screw rods to rotate relative to the right-handed nut and the left-handed nut, and the right-handed nut and the left-handed nut drive the two adjacent movable sliding blocks to be close to or spread. According to the utility model, the plurality of movable sliding blocks are connected with each other through the steering gear and the hexagonal optical axis, and the linkage pitch change of the components is realized through only one driving motor. The multi-direction variable pitch can be realized by utilizing the linkage shaft, simultaneously driving a plurality of rows of linkage assemblies to simultaneously operate through one driving motor and combining with other variable pitch mechanisms.

Description

Automatic change displacement mechanism

Technical Field

The utility model relates to the technical field of mechanical clamps, in particular to an automatic variable pitch mechanism.

Background

The variable-pitch clamp is a mechanical device which clamps a plurality of groups of products and realizes mutual distance change according to the requirement of industrial production packaging, and has the advantages of compact structure, high efficiency, multiple compatible packaging modes and the like. The method is mainly applied to the aspects of packaging, processing, detection and the like, and has wide application field and prospect. However, the existing pitch-variable clamp mainly has the following problems: 1. the whole structure is huge, the weight is heavy, and the use space and the movement are limited; 2. the whole change needs many drive mechanisms, and the distance change can not be realized by the joint motion between all groups of clamps, but the drive mechanism needs to be added for each group of clamps needing distance change.

The disadvantages to the above problems are mainly expressed as follows:

1. in terms of structural size and weight, common pitch-variable clamps are formed by mutually arranging and combining a plurality of groups of clamps, and the pitch variation is realized by changing the distance between the clamps, but the clamps among the groups of clamps need a larger space in the pitch variation process due to the driving reason, so that the overall weight is heavier, and the mutual movement is slower and limited.

2. For realizing the distance change, more driving mechanisms are needed, and in order to meet the distance change function among all groups of clamps, the driving mechanism is usually added to each clamp or each formed column or row, so that the driving quantity is increased, and the difficulty of the distance change mechanism in debugging, control and maintenance is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an automatic pitch-changing mechanism which has the advantages of fewer driving mechanisms required for realizing pitch changing and solves the problems that the size and the weight of a pitch-changing structure are large and the number of driving mechanisms required for realizing pitch changing is large in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: an automatic variable pitch mechanism comprises a linkage assembly, wherein the linkage assembly comprises a positive screw, a negative screw, a right-handed nut, a left-handed nut, a beam, a linkage guide rail sliding block, a rotating hexagon and a plurality of moving sliding blocks;

the plurality of moving sliding blocks are installed on the sliding blocks of the linkage guide rail sliding blocks, the two adjacent moving sliding blocks are connected through a positive and negative screw rod, a right-handed nut and a left-handed nut, the rotating hexagonal head penetrates through an upper synchronous wheel hole of an upper linkage component and a lower linkage component at the rear end of the beam and penetrates through the plurality of moving sliding blocks and the positive and negative screw rod, the right-handed nut and the left-handed nut which are connected with each other, the synchronous wheel hole of the upper linkage component and the lower linkage component at the front end of the beam and a speed reduction motor component are used for driving the positive and negative screw rod to rotate relative to the right-handed nut and the left-handed nut, and the right-handed nut and the left-handed nut drive the two adjacent moving sliding blocks to be close to or scattered.

Preferably, the number of the movable sliding blocks is 4, and the movable sliding blocks comprise a first movable sliding block, a second movable sliding block, a third movable sliding block and a fourth movable sliding block; the rotating hexagon comprises a first rotating hexagon and a second rotating hexagon; the linkage assembly also comprises a steering gear and an upper linkage assembly and a lower linkage assembly;

the first moving slide block, the second moving slide block, the third moving slide block and the fourth moving slide block are respectively arranged on a slide block of a linkage guide rail slide block, the first moving slide block, the second moving slide block, the third moving slide block and the fourth moving slide block are connected through a positive and negative screw rod, a right-handed nut and a left-handed nut, the steering gear is arranged on an upper and lower linkage assembly at the rear end of the beam, the first rotating hexagon penetrates through an upper synchronous wheel hole of the upper and lower linkage assembly at the rear end of the beam and penetrates through the first moving slide block, the second moving slide block, the third moving slide block, the fourth moving slide block, the positive and negative screw rod, the right-handed nut and the left-handed nut which are mutually connected, a synchronous wheel hole of the upper and lower linkage assembly at the front end of the beam and a speed reduction motor assembly; the second rotating hexagon penetrates through a steering gear, a lower synchronous wheel hole of an upper and lower linkage assembly at the rear end of the beam, the first moving slide block, the second moving slide block, the third moving slide block, the fourth moving slide block, a forward and reverse screw rod, a right-handed nut and a left-handed nut which are connected with each other, and a lower synchronous belt wheel hole of the upper and lower linkage assembly at the front end of the beam.

Preferably, the gear motor assembly of the linkage assembly is mounted on the gear motor mounting plate and integrally mounted at the front end of the cross beam, the upper and lower linkage assemblies are mounted at the front and rear ends of the cross beam, and the linkage guide rail sliding blocks are mounted on the inner side of the cross beam.

Preferably, the number of the linkage assemblies is a plurality, and the plurality of the linkage assemblies are driven by one speed reducing motor assembly and mutually transmit power through the linkage shaft.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model needs fewer driving mechanisms for realizing variable pitch. A plurality of movable sliding blocks are connected with each other through a steering gear and a hexagonal optical axis, and linkage pitch changing of the components is realized only through one driving motor. The multi-direction variable pitch can be realized by utilizing the linkage shaft, simultaneously driving a plurality of rows of linkage assemblies to simultaneously operate through one driving motor and combining with other variable pitch mechanisms.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

In the figure: 1. a positive and negative screw; 2. right-hand turning of the nut; 3. a left-handed nut; 4. a geared motor assembly; 5. a speed reducing motor mounting plate; 6. an upper and lower linkage assembly; 7. the upper and lower linkage assembly mounting plate I; 8. a cross beam; 9. moving the first sliding block; 10. moving a second sliding block; 11. moving a third sliding block; 12. moving the sliding block IV; 13. a second upper and lower linkage assembly mounting plate; 14. a diverter; 15. rotating for a first hexagon; 16. rotating the second hexagon; 17. a linkage guide rail slide block; 18. a third upper and lower linkage assembly mounting plate; 19. a linkage shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1, an automatic pitch-changing mechanism comprises a linkage assembly, wherein the linkage assembly comprises a positive screw 1, a negative screw 1, a right-handed nut 2, a left-handed nut 3, a beam 8, a linkage guide rail slide block 17, a rotating hexagon and a plurality of moving slide blocks;

a plurality of removes the slider and installs on linkage guide rail slider 17's slider, through positive and negative screw rod 1 between two adjacent removal sliders, right-handed nut 2, left-handed nut 3 is connected, the last synchronizing wheel hole of the upper and lower linkage subassembly 6 of crossbeam 8 rear end is passed to the rotation hexagonal, and pass a plurality of removal slider and its interconnect's positive and negative screw rod 1, right-handed nut 2 and left-handed nut 3, the synchronizing wheel hole of the upper and lower linkage subassembly 6 of crossbeam 8 front end, and gear motor subassembly 4, gear motor subassembly 4 is used for driving positive and negative screw rod 1 and is rotatory relative right-handed nut 2 and left-handed nut 3, right-handed nut 2 and left-handed nut 3 drive two adjacent removal sliders and draw close together or scatter.

When the device is used, the number of the movable sliding blocks is 4, namely a movable sliding block I9, a movable sliding block II 10, a movable sliding block III 11 and a movable sliding block IV 12; the rotating hexagon comprises a first rotating hexagon 15 and a second rotating hexagon 16;

the first moving slide block 9, the second moving slide block 10, the third moving slide block 11 and the fourth moving slide block 12 are respectively arranged on a slide block of a linkage guide rail slide block 17, the first moving slide block 9, the second moving slide block 10, the third moving slide block 11 and the fourth moving slide block 12 are connected through a forward and backward screw rod 1, a right-handed nut 2 and a left-handed nut 3, a steering gear 14 is arranged on an up-and-down linkage assembly 6 at the rear end of a cross beam 8, a rotating hexagonal first 15 penetrates through an upper synchronous wheel hole of the up-and-down linkage assembly 6 at the rear end of the cross beam 8 and penetrates through the first moving slide block 9, the second moving slide block 10, the third moving slide block 11, the fourth moving slide block 12 and the forward and backward screw rod 1, the right-handed nut 2 and the left-handed nut 3 which are connected with each other, a synchronous wheel hole of the up-and-down linkage assembly 6 at the front end of the cross beam 8 and a speed reducing motor assembly 4; the gear motor component 4 of the linkage component is arranged on the gear motor mounting plate 5 and is integrally arranged at the front end of the beam 8, the up-down linkage component 6 is arranged at the front end and the rear end of the beam 8, and the linkage guide rail slide block 17 is arranged at the inner side of the beam 8. The second rotating hexagonal block 16 penetrates through a steering gear 14, a lower synchronous wheel hole of the upper and lower linkage assembly 6 at the rear end of the beam 8, a first moving slide block 9, a second moving slide block 10, a third moving slide block 11, a fourth moving slide block 12, a forward and reverse screw rod 1, a right-handed nut 2 and a left-handed nut 3 which are connected with each other, and a lower synchronous belt wheel hole of the upper and lower linkage assembly 6 at the front end of the beam 8.

The upper and lower linkage components are fixed through the upper and lower linkage component mounting plates, and the upper and lower linkage component mounting plates comprise an upper and lower linkage component mounting plate I7, an upper and lower linkage component mounting plate II 13 and an upper and lower linkage component mounting plate III 18.

The number of the linkage assemblies is a plurality, and the linkage assemblies are driven by one speed reducing motor assembly 4 and mutually transmit power through a linkage shaft 19.

Compared with the prior art, the utility model needs fewer driving mechanisms for realizing variable pitch. A plurality of movable sliding blocks are connected with each other through a steering gear 14 and a hexagonal optical axis, and linkage distance changing of the components is achieved through only one driving motor. The multi-direction variable pitch can be realized by utilizing the linkage shaft 19, simultaneously driving a plurality of rows of linkage assemblies to simultaneously operate through one driving motor and combining with other variable pitch mechanisms.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an automatic change displacement mechanism, includes linkage assembly, its characterized in that: the linkage assembly comprises a positive and negative screw rod (1), a right-handed nut (2), a left-handed nut (3), a cross beam (8), a linkage guide rail sliding block (17), a rotating hexagonal block and a plurality of moving sliding blocks;

a plurality of removes the slider and installs on the slider of linkage guide rail slider (17), connects through positive and negative screw rod (1), right-handed nut (2), left-handed nut (3) between two adjacent removal sliders, the last synchronizing wheel hole that the upper and lower linkage subassembly (6) of crossbeam (8) rear end was passed to the rotation hexagonal to pass positive and negative screw rod (1), right-handed nut (2) and left-handed nut (3) of a plurality of removal slider and interconnect, the synchronizing wheel hole of upper and lower linkage subassembly (6) of crossbeam (8) front end, and gear motor subassembly (4), gear motor subassembly (4) are used for driving positive and negative screw rod (1) and rotate relative right-handed nut (2) and left-handed nut (3), and right-handed nut (2) and left-handed nut (3) drive two adjacent removal sliders and draw close together or scatter.

2. An automated pitch change mechanism according to claim 1, wherein: the number of the movable sliding blocks is 4, and the movable sliding blocks comprise a first movable sliding block (9), a second movable sliding block (10), a third movable sliding block (11) and a fourth movable sliding block (12); the rotating hexagon comprises a rotating hexagon I (15) and a rotating hexagon II (16); the linkage assembly also comprises a steering gear (14) and an upper linkage assembly and a lower linkage assembly (6);

the moving slide block I (9), the moving slide block II (10), the moving slide block III (11) and the moving slide block IV (12) are respectively arranged on a slide block of a linkage guide rail slide block (17), the moving slide block I (9), the moving slide block II (10), the moving slide block III (11) and the moving slide block IV (12) are connected through a positive and negative screw rod (1), a right-handed nut (2) and a left-handed nut (3), the steering gear (14) is arranged on an upper and lower linkage assembly (6) at the rear end of the cross beam (8), the rotating hexagonal I (15) penetrates through an upper synchronous wheel hole of the upper and lower linkage assembly (6) at the rear end of the cross beam (8) and penetrates through the moving slide block I (9), the moving slide block II (10), the moving slide block III (11), the moving slide block IV (12) and the positive and negative screw rod (1), the right-handed nut (2) and the left-handed nut (3) which are connected with each other, and a synchronous wheel hole of the upper and lower linkage assembly (6) at the front end of the cross beam (8), and a geared motor assembly (4); the rotating hexagonal second part (16) penetrates through a lower synchronous wheel hole of the upper and lower linkage assembly (6) at the rear end of the steering gear (14), the cross beam (8), the first moving slide block (9), the second moving slide block (10), the third moving slide block (11), the fourth moving slide block (12), a forward and reverse screw rod (1), a right-handed nut (2) and a left-handed nut (3) which are connected with each other, and a lower synchronous belt wheel hole of the upper and lower linkage assembly (6) at the front end of the cross beam (8).

3. An automated pitch change mechanism according to claim 1, wherein: the speed reducing motor assembly (4) of the linkage assembly is arranged on the speed reducing motor mounting plate (5) and integrally arranged at the front end of the cross beam (8), the upper and lower linkage assembly (6) is arranged at the front end and the rear end of the cross beam (8), and the linkage guide rail sliding block (17) is arranged on the inner side of the cross beam (8).

4. An automated pitch change mechanism according to claim 1, wherein: the number of the linkage assemblies is a plurality, the linkage assemblies are driven by one speed reducing motor assembly (4), and power is transmitted through the linkage shafts (19) mutually.