CN211778701U

CN211778701U - But robot arm is with multi-angle bending's combination formula spring

Info

Publication number: CN211778701U
Application number: CN201922384606.0U
Authority: CN
Inventors: 李冬山; 李慧
Original assignee: Guangdong Spring Industry Co ltd
Current assignee: Guangdong Spring Industry Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-10-27
Anticipated expiration: 2029-12-26

Abstract

The utility model relates to a spring technical field specifically is a but robot arm is with combination formula spring of multi-angle bending, including the bottom plate, be equipped with first fixed cover on the bottom plate, be equipped with the first ring channel that is linked together with the external world in the first fixed cover, the top of bottom plate is equipped with the roof, and the bottom surface of roof just is equipped with the fixed cover of second to the position of first fixed cover, just is equipped with the second ring channel that is linked together with the external world to the position of first ring channel in the fixed cover of second, is equipped with the elasticity guide pillar between the fixed cover of first fixed cover and second, around being equipped with the spring on the. The utility model discloses easy to assemble can be towards the certain degree of arbitrary angle bending, facilitates the use.

Description

But robot arm is with multi-angle bending's combination formula spring

Technical Field

The utility model relates to the technical field of springs, specifically be a but robot arm is with multi-angle bending's combination formula spring.

Background

Along with the continuous development of science and technology, the application of robot is also more and more extensive, generally installs robotic arm on the robot and simulates the action or the action of people, generally installs combination formula spring on the robotic arm, but general combination formula spring can not carry out multi-angle bending, and then can restrict the normal motion of robotic arm. In view of the above, we propose a multi-angle bendable combined spring for a robot arm.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a but robot arm is with multi-angle bending's combination formula spring to the general combination formula spring that proposes in solving above-mentioned background art can not carry out multi-angle bending, and then can restrict the problem of robot arm normal motion.

In order to achieve the above object, the utility model provides a following technical scheme:

the combined spring capable of being bent at multiple angles for the robot arm comprises a bottom plate, wherein a first fixing sleeve is arranged on the bottom plate, a first annular groove communicated with the outside is formed in the first fixing sleeve, a top plate is arranged above the bottom plate, a second fixing sleeve is arranged at the position, right opposite to the first fixing sleeve, of the bottom plate, a second annular groove communicated with the outside is formed in the position, right opposite to the first annular groove, of the second fixing sleeve, a second through hole communicated with the outside is formed in the top wall of the second annular groove, an elastic guide pillar is arranged between the first fixing sleeve and the second fixing sleeve, a spring is wound on the elastic guide pillar, one tail end of the spring is tightly welded on the groove wall of the first annular groove, and the other tail end of the spring is tightly welded on the groove wall of the second annular groove.

Preferably, a first through hole communicated with the outside is formed in the center of the top plate.

Preferably, the bottom end of the elastic guide pillar is tightly bonded to the bottom wall of the first annular groove.

Preferably, a fixing plate is tightly bonded to the top end of the elastic guide pillar, the fixing plate is located below the top plate, a screw rod is tightly welded to the position, opposite to the first through hole, of the fixing plate, and the screw rod penetrates through the first through hole.

Preferably, a gasket is sleeved on the screw rod, a fastening nut is further connected to the screw rod in a threaded manner, and the gasket is located between the fastening nut and the top plate.

Preferably, an outer flexible protective sleeve is further tightly bonded between the first fixed sleeve and the second fixed sleeve, and the elastic guide pillar and the spring are both located inside the outer flexible protective sleeve.

Preferably, a plurality of groups of threaded holes which are arranged in a matrix form and communicated with the outside are arranged in the bottom plate and the top plate.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a spring that sets up between first fixed cover and the fixed cover of second, because the length of spring is longer relatively, can be with the certain angle of spring towards arbitrary direction bending, and through the elasticity guide pillar that sets up, because the elasticity guide pillar has better elasticity, it can be crooked along with the bending of spring, under no exogenic action, spring and elasticity guide pillar can the reconversion, thereby reach the effect that the spring can carry out multi-angle bending, it can not carry out multi-angle bending to have solved general combination formula spring, and then can restrict the problem of the normal motion of robot arm.

2. The utility model discloses a multiunit screw hole that sets up on bottom plate and roof is convenient for install bottom plate and roof on the arm of robot, has solved general combination formula spring and has not been convenient for install the problem on the robot arm.

Drawings

Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;

fig. 2 is an exploded view of embodiment 1 of the present invention;

fig. 3 is a sectional view of a second fixing sleeve of the present invention;

fig. 4 is a schematic structural view of the spring of the present invention;

fig. 5 is a schematic structural diagram of embodiment 2 of the present invention.

In the figure: 1. a base plate; 10. a first fixing sleeve; 11. a first annular groove; 12. a top plate; 121. a first through hole; 13. a second fixing sleeve; 131. a second annular groove; 132. a second through hole; 14. a spring; 15. an elastic guide post; 151. a fixing plate; 152. a screw; 16. a gasket; 17. fastening a nut; 18. an outer flexible protective sleeve; 2. a threaded bore.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Example 1

A combined spring capable of being bent in multiple angles for a robot arm is shown in figures 1 to 4 and comprises a bottom plate 1, wherein a first fixing sleeve 10 is arranged on the upper surface of the bottom plate 1, and the first fixing sleeve 10 and the bottom plate 1 are of an integrally formed structure, so that the structure is firmer and more stable;

a first annular groove 11 communicated with the outside is arranged in the first fixing sleeve 10, a top plate 12 is arranged above the bottom plate 1, a first through hole 121 communicated with the outside is arranged at the central position of the top plate 12, a second fixing sleeve 13 is arranged at the position, opposite to the first fixing sleeve 10, of the bottom surface of the top plate 12, a second annular groove 131 communicated with the outside is arranged at the position, opposite to the first annular groove 11, in the second fixing sleeve 13, a second through hole 132 communicated with the outside is arranged on the top wall of the second annular groove 131, an elastic guide pillar 15 is arranged between the first fixing sleeve 10 and the second fixing sleeve 13, the bottom end of the elastic guide pillar 15 is tightly bonded on the bottom wall of the first annular groove 11, a fixing plate 151 is tightly bonded at the top end of the elastic guide pillar 15, the fixing plate 151 is positioned below the top plate 12, a screw 152 is tightly welded at the position, opposite to, the screw 152 is sleeved with a gasket 16, the gasket 16 is of an annular structure, the middle of the annular structure is provided with a through hole communicated with the outside, the screw 152 is also in threaded connection with a fastening nut 17, the gasket 16 is positioned between the fastening nut 17 and the top plate 12, and the top plate 12 is fixed on the elastic guide pillar 15 when the fastening nut 17 is screwed down by utilizing the threaded connection between the fastening nut 17 and the screw 152;

the elastic guide post 15 is wound with a spring 14, one end of the spring 14 is tightly welded on the groove wall of the first annular groove 11, and the other end of the spring 14 is tightly welded on the groove wall of the second annular groove 131.

In this embodiment, the elastic guide post 15 is made of a rubber material with good elasticity, so that the elastic guide post 15 can be bent under the action of external force, and the elastic guide post 15 can be restored to the original state after the external force is removed.

Specifically, the length of the spring 14 is 10 to 20cm, and the length of the part of the spring 14 located outside the first annular groove 11 and the second annular groove 131 is three times the sum of the lengths of the part of the spring 14 located inside the first annular groove 11 and the second annular groove 131, so that the spring 14 can be bent at a certain angle in any direction.

Further, still closely bond between first fixed cover 10 and the second fixed cover 13 and have outside flexible protective sheath 18, outside flexible protective sheath 18 is hollow structure, elasticity guide pillar 15 and spring 14 all are located the inside of outside flexible protective sheath 18, outside flexible protective sheath 18 adopts rubber materials to make, rubber materials has better elasticity, guarantee that outside flexible protective sheath 18 has certain expansion ability, when the partly main part of elasticity guide pillar 15 supports on outside flexible protective sheath 18 in the crooked emergence of elasticity guide pillar 15, outside flexible protective sheath 18 can be along with the crooked emergence deformation of elasticity guide pillar 15, guarantee that outside flexible protective sheath 18 can not influence the normal bending of elasticity guide pillar 15, in addition through the outside flexible protective sheath 18 that sets up, including protection of elasticity guide pillar 15 and spring 14, can improve its holistic pleasing to the eye degree.

In this embodiment, through the spring 14 that sets up between first fixed cover 10 and second fixed cover 13, can be towards certain angle of arbitrary orientation bending with spring 14, in addition through the elastic guide pillar 15 that sets up, it can be crooked along with the bending of spring 14, and under no exogenic action, spring 14 and elastic guide pillar 15 all can keep vertical state, have solved general combination formula spring and can not carry out multi-angle bending, and then can restrict the problem of robot arm normal motion.

Example 2

In the specific operation, in order to facilitate the fixed installation of the bottom plate 1 and the top plate 12 on the external robot arm, therefore, the bottom plate 1 and the top plate 12 are improved on the basis of embodiment 1, as a preferred embodiment, as shown in fig. 5, a plurality of groups of threaded holes 2 arranged in a matrix form and communicated with the outside are respectively arranged in the bottom plate 1 and the top plate 12, so that the bottom plate 1 and the top plate 12 are conveniently and fixedly installed on the external robot arm by using fastening screws at positions corresponding to the threaded holes, and the problem that a common combined spring is inconvenient to install on the robot arm is solved.

The utility model discloses a but robot arm is with combination formula spring of multi-angle bending when using, use external fastening screw with bottom plate 1 and roof 12 fixed mounting also be equipped with the position that corresponds the screw hole on external robot arm, when exogenic action is on bottom plate 1 or roof 12, bottom plate 1 or roof 12 are crooked towards the direction of power, further drive spring 14 and elasticity guide pillar 15 and take place the bending, just realize adjusting spring 14's bending angle this moment, in addition outside flexible protective sheath 18 has certain ability of opening greatly towards the outside, guarantee that outside flexible protective sheath 18 can not block spring 14 and elasticity guide pillar 15's normal bending, it can not carry out multi-angle bending to have solved general combination formula spring, and then can restrict the problem of the normal motion of robot arm.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a but robot arm is with multi-angle bending's combination formula spring, includes bottom plate (1), its characterized in that: the bottom plate (1) is provided with a first fixing sleeve (10), a first annular groove (11) communicated with the outside is arranged in the first fixing sleeve (10), a top plate (12) is arranged above the bottom plate (1), a second fixing sleeve (13) is arranged at the position, facing the first fixing sleeve (10), of the bottom surface of the top plate (12), a second annular groove (131) communicated with the outside is arranged at the position, facing the first annular groove (11), in the second fixing sleeve (13), a second through hole (132) communicated with the outside is arranged on the top wall of the second annular groove (131), an elastic guide pillar (15) is arranged between the first fixing sleeve (10) and the second fixing sleeve (13), a spring (14) is wound on the elastic guide pillar (15), and one tail end of the spring (14) is tightly welded on the groove wall of the first annular groove (11), the other end of the spring (14) is tightly welded on the groove wall of the second annular groove (131).

2. The multi-angle bendable combined spring for a robot arm according to claim 1, wherein: the center of the top plate (12) is provided with a first through hole (121) communicated with the outside.

3. The multi-angle bendable combined spring for a robot arm according to claim 1, wherein: the bottom end of the elastic guide post (15) is tightly adhered to the bottom wall of the first annular groove (11).

4. The multi-angle bendable combined spring for a robot arm of claim 2, wherein: the top end of the elastic guide post (15) is tightly bonded with a fixing plate (151), the fixing plate (151) is located below the top plate (12), a screw rod (152) is tightly welded on the position, opposite to the first through hole (121), of the fixing plate (151), and the screw rod (152) penetrates through the first through hole (121).

5. The multi-angle bendable combined spring for a robot arm according to claim 4, wherein: the screw rod (152) is sleeved with a gasket (16), the screw rod (152) is further connected with a fastening nut (17) in a threaded mode, and the gasket (16) is located between the fastening nut (17) and the top plate (12).

6. The multi-angle bendable combined spring for a robot arm according to claim 1, wherein: an outer flexible protective sleeve (18) is tightly bonded between the first fixed sleeve (10) and the second fixed sleeve (13), and the elastic guide post (15) and the spring (14) are both positioned in the outer flexible protective sleeve (18).

7. The multi-angle bendable combined spring for a robot arm according to claim 1, wherein: the bottom plate (1) and all be equipped with screw hole (2) that a plurality of groups are arranged and are linked together with the external world in top plate (12) are the matrix.