CN216234794U

CN216234794U - Pitch-changing mechanism for equal distance

Info

Publication number: CN216234794U
Application number: CN202122866287.4U
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 clamps, in particular to a variable-pitch mechanism for equal distance. 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. In the pitch changing process, all the moving slides are close to or spread at the same time, the time required by the pitch changing is short, the pitch changing efficiency is low, and the equal distance is always kept in the pitch changing process, so that the synchronous pitch changing is realized.

Description

Pitch-changing mechanism for equal distance

Technical Field

The utility model relates to the technical field of mechanical clamps, in particular to a distance changing mechanism for equal distance.

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 a variable pitch mechanism for equal distance, which has the advantage of less driving mechanisms required for realizing variable pitch, and solves the problems that the variable pitch structure in the prior art is large in size and weight, and more driving mechanisms are required for realizing variable pitch.

In order to achieve the purpose, the utility model provides the following technical scheme: a variable-pitch mechanism for equal distance comprises a cross beam, an upper and lower linkage assembly, a rotating hexagonal part, a positive and negative screw rod, a right-handed nut, a plurality of moving slide blocks, a left-handed nut and a moving linear guide rail slide block;

the movable sliding block is installed on the cross beam through the movable linear guide rail sliding block, the movable sliding block is connected with the movable sliding block through a left-handed nut, a positive and negative screw rod and a right-handed nut, the rotary hexagonal penetrates through the upper and lower linkage assembly, the movable sliding block, the left-handed nut, the positive and negative screw rod and the right-handed nut, the rotary hexagonal drives the movable sliding block to rotate through the driving assembly, the rotary hexagonal drives the positive and negative screw rod to rotate, and the positive and negative screw rod drives the movable sliding block to be close to or spread.

Preferably, the lower end of the upper and lower linkage assembly is provided with a steering gear, the steering gear and the upper and lower linkage assembly are integrally formed and are arranged on the upper and lower linkage assembly mounting plates, the upper and lower linkage assembly mounting plates are arranged at the head end of the cross beam, the tail end of the cross beam is provided with another upper and lower linkage assembly mounting plate, and the upper and lower linkage assembly mounting plate at the tail end of the cross beam is provided with another upper and lower linkage assembly.

Preferably, the hexagonal rotation comprises a first hexagonal rotation and a second hexagonal rotation, the driving assembly simultaneously drives the first hexagonal rotation and the second hexagonal rotation, and both the first hexagonal rotation and the second hexagonal rotation drive the positive and negative screws to rotate.

Preferably, the moving linear guide rail sliding blocks are arranged on the inner side surface of the cross beam, and the N moving sliding blocks are sequentially arranged on the sliding blocks of the moving linear guide rail sliding blocks; n-1 positive and negative screw rods are arranged on the side surfaces of the movable sliding blocks in a staggered mode, and the N movable sliding blocks are connected together one by one, N-1 right-handed nuts are arranged at the right-handed ends of the N-1 positive and negative screw rods and are respectively connected with the right sides of the movable sliding blocks, and N-1 left-handed nuts are arranged at the left-handed ends of the N-1 positive and negative screw rods and are respectively connected with the left sides of the movable sliding blocks; the first rotating hexagonal block and the second rotating hexagonal block respectively penetrate through the upper and lower linkage assemblies, the upper and lower linkage assembly mounting plates, the N moving sliding blocks, the N-1 positive and negative screw rods, the N-1 right-handed nuts, the upper and lower linkage assembly mounting plates at the tail end of the beam and the upper and lower linkage assemblies at the tail end of the beam; and the left flange plate and the right flange plate of the cross beam are respectively arranged on the cross beam mounting plate.

Preferably, the number of the moving sliding blocks is six, the moving linear guide rail sliding blocks are arranged on the inner side surface of the cross beam, and the six moving sliding blocks are sequentially arranged on the sliding blocks of the moving linear guide rail sliding blocks;

the positive and negative screw rods are arranged on the side surfaces of the movable sliding blocks in a staggered manner, so that the first movable sliding block is connected with the second movable sliding block, the second movable sliding block is connected with the third movable sliding block, the third movable sliding block is connected with the fourth movable sliding block, the fourth movable sliding block is connected with the fifth movable sliding block, the fifth movable sliding block is connected with the sixth movable sliding block, five right-handed nuts are arranged at the right-handed ends of the five positive and negative screw rods and are respectively connected with the right sides of the movable sliding blocks, and five left-handed nuts are arranged at the left-handed ends of the five positive and negative screw rods and are respectively connected with the left sides of the movable sliding blocks; the first rotating hexagon penetrates through the upper and lower linkage assembly, the upper and lower linkage assembly mounting plate, the six moving sliders, the five positive and negative screw rods, the five right-handed nuts, the upper and lower linkage assembly mounting plate at the tail end of the beam and the upper and lower linkage assembly at the tail end of the beam; and the left flange plate and the right flange plate of the cross beam are respectively arranged on the cross beam mounting plate.

Preferably, the device further comprises a clamp, and the clamp is mounted on the moving slide block.

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. In the pitch changing process, all the moving slides are close to or spread at the same time, the time required by the pitch changing is short, the pitch changing efficiency is low, and the equal distance is always kept in the pitch changing process, so that the synchronous pitch changing is realized.

Drawings

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

In the figure: 1. a cross beam; 2. an upper linkage component mounting plate and a lower linkage component mounting plate; 3. an upper and lower linkage assembly; 4. a diverter; 5. a beam mounting plate; 6. rotating for a first hexagon; 7. rotating the second hexagon; 8. a positive and negative screw; 9. right-hand turning of the nut; 10. moving the slide block; 11. a clamp; 12. a left-handed nut; 13. and moving the linear guide rail slide block.

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, a pitch-variable mechanism for equal distance comprises a beam 1, an upper and lower linkage assembly 3, a rotating hexagonal, a positive and negative screw 8, a right-handed nut 9, a plurality of moving sliders 10, a left-handed nut 12 and a moving linear guide slider 13;

the movable sliding block 10 is installed on the beam 1 through the movable linear guide rail sliding block 13, the movable sliding block 10 is connected with the movable sliding block 10 through the left-handed nut 12, the positive and negative screw rods 8 and the right-handed nut 9, the upper and lower linkage component 3, the movable sliding block 10, the left-handed nut 12, the positive and negative screw rods 8 and the right-handed nut 9 are penetrated through the rotating hexagonal, the rotating hexagonal drives the rotation of the movable sliding block through the driving component, the rotating hexagonal drives the positive and negative screw rods 8 to rotate, and the positive and negative screw rods 8 drive the movable sliding block 10 to be mutually close to or scatter. The device also comprises a clamp 11, and the clamp 11 is installed on the movable slide block 10.

The lower end of the upper and lower linkage assemblies 3 is provided with a steering gear 4, the steering gear 4 and the upper and lower linkage assemblies 3 form a whole and are arranged on the upper and lower linkage assembly mounting plates 2, the upper and lower linkage assembly mounting plates 2 are arranged at the head end of the beam 1, another upper and lower linkage assembly mounting plate 2 is arranged at the tail end of the beam 1, and another upper and lower linkage assembly 3 is arranged on the upper and lower linkage assembly mounting plate 2 at the tail end of the beam 1.

The rotating hexagon comprises a first rotating hexagon 6 and a second rotating hexagon 7, the driving assembly drives the first rotating hexagon 6 and the second rotating hexagon 7 to rotate simultaneously, and the first rotating hexagon 6 and the second rotating hexagon 7 both drive the positive screw and the negative screw 8 to rotate.

The moving linear guide rail sliding blocks 13 are arranged on the inner side surface of the beam 1, and the N moving sliding blocks 10 are sequentially arranged on the sliding blocks of the moving linear guide rail sliding blocks 13; n-1 positive and negative screw rods 8 are arranged on the side surface of the movable slide block 10 in a staggered mode, and the N movable slide blocks 10 are connected together one by one, N-1 right-handed nuts 9 are arranged at the right-handed ends of the N-1 positive and negative screw rods 8 and are respectively connected with the right side of the movable slide block 10, and N-1 left-handed nuts 12 are arranged at the left-handed ends of the N-1 positive and negative screw rods 8 and are respectively connected with the left side of the movable slide block 10; the first rotating hexagonal block 6 and the second rotating hexagonal block 7 respectively penetrate through the upper and lower linkage assemblies 3, the upper and lower linkage assembly mounting plates 2, the N moving sliders 10, the N-1 positive and negative screw rods 8, the N-1 right-handed nuts 9, the upper and lower linkage assembly mounting plates 2 at the tail end of the beam 1 and the upper and lower linkage assemblies 3 at the tail end of the beam 1; the left and right flange plates of the beam 1 are respectively arranged on the beam mounting plate 5.

When the number of the movable sliding blocks 10 is six, the movable linear guide rail sliding blocks 13 are arranged on the inner side surface of the beam 1, and the six movable sliding blocks 10 are sequentially arranged on the sliding blocks of the movable linear guide rail sliding blocks 13;

the positive and negative screw rods 8 are arranged on the side surfaces of the movable sliding blocks 10 in a staggered mode, so that the first movable sliding block 10 is connected with the second movable sliding block 10, the second movable sliding block 10 is connected with the third movable sliding block 10, the third movable sliding block 10 is connected with the fourth movable sliding block 10, the fourth movable sliding block 10 is connected with the fifth movable sliding block 10, the fifth movable sliding block 10 is connected with the sixth movable sliding block 10, five right-handed nuts 9 are arranged at the right-handed ends of the five positive and negative screw rods 8 and are respectively connected with the right sides of the movable sliding blocks 10, and five left-handed nuts 12 are arranged at the left-handed ends of the five positive and negative screw rods 8 and are respectively connected with the left sides of the movable sliding blocks 10; the first rotating hexagon 6 penetrates through the upper and lower linkage assembly 3, the upper and lower linkage assembly mounting plate 2, the six movable sliders 10, the five positive and negative screws 8, the five right-handed nuts 9, the upper and lower linkage assembly mounting plate 2 at the tail end of the beam 1 and the upper and lower linkage assembly 3 at the tail end of the beam 1; the left and right flange plates of the beam 1 are respectively arranged on the beam mounting plate 5.

When the variable pitch is needed to be realized, when the driving rotating hexagonal is driven by a motor of a driving speed reducer, the first rotating hexagonal 6 and the second rotating hexagonal 7 are respectively realized to rotate, further, respective positive and negative screw rods 8 on the first linkage component, the second linkage component, the third linkage component and the fourth linkage component are realized to rotate, the left-handed nut 12 and the right-handed nut 9 are simultaneously closed or scattered to the middle of the clamp 11, and therefore the Z-direction clamp 11 is driven to be simultaneously closed or scattered along the Y direction.

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. A variable pitch mechanism for equal distance is characterized in that: the device comprises a beam (1), an upper and lower linkage assembly (3), a rotary hexagonal, a positive and negative screw (8), a right-handed nut (9), a plurality of movable sliding blocks (10), a left-handed nut (12) and a movable linear guide rail sliding block (13);

remove slider (10) and install on crossbeam (1) through removing linear guide slider (13), remove and be connected through left-handed nut (12), positive and negative screw rod (8) and dextrorotation nut (9) between slider (10) and the removal slider (10), link subassembly (3), removal slider (10), left-handed nut (12), positive and negative screw rod (8) and dextrorotation nut (9) about the hexagonal of rotating runs through, it is rotatory that the hexagonal of rotating drives it through drive assembly, it is rotatory to rotate hexagonal drive positive and negative screw rod (8), and positive and negative screw rod (8) drive and move and draw close together each other or scatter between slider (10).

2. An equidistance pitch mechanism as claimed in claim 1, wherein: the lower end of the upper linkage component (3) and the lower linkage component (3) is provided with a steering gear (4), the steering gear (4) and the upper linkage component (3) are integrally arranged on the upper linkage component mounting plate and the lower linkage component mounting plate (2), the upper linkage component mounting plate and the lower linkage component mounting plate (2) are arranged at the head end of the cross beam (1), another upper linkage component mounting plate and a lower linkage component mounting plate (2) are arranged at the tail end of the cross beam (1), and another upper linkage component (3) and a lower linkage component are arranged on the upper linkage component mounting plate and the lower linkage component mounting plate (2) at the tail end of the cross beam (1).

3. An equidistance pitch mechanism as claimed in claim 1, wherein: the hexagonal rotation comprises a first hexagonal rotation body (6) and a second hexagonal rotation body (7), the driving assembly drives the first hexagonal rotation body (6) and the second hexagonal rotation body (7) to rotate simultaneously, and the first hexagonal rotation body (6) and the second hexagonal rotation body (7) both drive the positive and negative screw rods (8) to rotate.

4. An equidistance pitch mechanism as claimed in claim 3, wherein: the moving linear guide rail sliding blocks (13) are arranged on the inner side surface of the cross beam (1), and the N moving sliding blocks (10) are sequentially arranged on the sliding blocks of the moving linear guide rail sliding blocks (13); n-1 positive and negative screw rods (8) are arranged on the side surface of the movable sliding block (10) in a staggered mode, the N movable sliding blocks (10) are connected together one by one, N-1 right-handed nuts (9) are arranged at the right-handed ends of the N-1 positive and negative screw rods (8) and are respectively connected with the right side of the movable sliding blocks (10), and N-1 left-handed nuts (12) are arranged at the left-handed ends of the N-1 positive and negative screw rods (8) and are respectively connected with the left side of the movable sliding blocks (10); the rotating hexagonal I (6) and the rotating hexagonal II (7) respectively penetrate through the upper and lower linkage assembly (3), the upper and lower linkage assembly mounting plate (2), the N moving sliders (10), the N-1 positive and negative screw rods (8), the N-1 right-handed nuts (9), the upper and lower linkage assembly mounting plate (2) at the tail end of the beam (1) and the upper and lower linkage assembly (3) at the tail end of the beam (1); the left flange plate and the right flange plate of the cross beam (1) are respectively arranged on the cross beam mounting plate (5).

5. An equidistance pitch mechanism as claimed in claim 4, wherein: the number of the movable sliding blocks (10) is six, the movable linear guide rail sliding blocks (13) are arranged on the inner side surface of the cross beam (1), and the six movable sliding blocks (10) are sequentially arranged on the sliding blocks of the movable linear guide rail sliding blocks (13);

the positive and negative screw rods (8) are arranged on the side surfaces of the movable sliding blocks (10) in a staggered mode, so that the first movable sliding block (10) is connected with the second movable sliding block (10), the second movable sliding block (10) is connected with the third movable sliding block (10), the third movable sliding block (10) is connected with the fourth movable sliding block (10), the fourth movable sliding block (10) is connected with the fifth movable sliding block (10), the fifth movable sliding block (10) is connected with the sixth movable sliding block (10), five right-handed nuts (9) are arranged at the right-handed ends of the five positive and negative screw rods (8) and are respectively connected with the right sides of the movable sliding blocks (10), and five left-handed nuts (12) are arranged at the left-handed ends of the five positive and negative screw rods (8) and are respectively connected with the left sides of the movable sliding blocks (10); the rotating hexagonal I (6) penetrates through the upper and lower linkage assembly (3), the upper and lower linkage assembly mounting plate (2), six moving sliders (10), five positive and negative screw rods (8), five right-handed nuts (9), the upper and lower linkage assembly mounting plate (2) at the tail end of the beam (1) and the upper and lower linkage assembly (3) at the tail end of the beam (1); the left flange plate and the right flange plate of the cross beam (1) are respectively arranged on the cross beam mounting plate (5).

6. An equidistance pitch mechanism as claimed in claim 1, wherein: the device also comprises a clamp (11), wherein the clamp (11) is arranged on the movable sliding block (10).