CN208557552U

CN208557552U - A kind of mechanical arm convenient for adjusting grasping force

Info

Publication number: CN208557552U
Application number: CN201820858686.1U
Authority: CN
Inventors: 王彬潼
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-06-05
Filing date: 2018-06-05
Publication date: 2019-03-01
Anticipated expiration: 2028-06-05

Abstract

The utility model discloses a kind of mechanical arms convenient for adjusting grasping force of mechanical arm technical field, including shell and rack gear, the inner cavity of shell is arranged in the rack gear, the front inside wall left and right ends of the shell are provided with hydraulic telescopic arm, the back side of the identical gear of two structures is symmetrically fixedly installed with clamp arm, the position that the inner wall of the shell is top is fixedly installed bearing, the inner wall of the bearing is equipped with threaded post, the bottom of the threaded post is screwed with sleeve, the bottom of the sleeve is equipped with elastic component, the top of the bottom connection stressed plate of the elastic component, the inner cavity rotary setting of the shell has transmission gear, the top of the threaded post is connected with change gear, the utility model structure is simple, it is cheap, convenient for adjusting the dynamics of clamping, convenient for clamping various objects, it effectively prevent in clamping process It is middle broken there is a situation where falling or clamping object.

Description

A kind of mechanical arm convenient for adjusting grasping force

Technical field

The utility model relates to mechanical arm technical field, specially a kind of mechanical arm convenient for adjusting grasping force.

Background technique

Automating higher and higher today, manpower transport fades away instead manipulator in factory Arm, although mechanical arm is without rest, working efficiency is very efficient, and can substitute manual work under rugged environment, But tradition machinery arm be to certain fix shape size object achieve the effect that it is best, or to it is firm not It is clamped with object, as the different tubular body of diameter, mechanical arm is difficult to get hold of clamping dynamics, is easy in clamping process It causes to fall alternatively, clamping force is excessive and device is made to be damaged, also there is the mechanical arm with sensor on the market certainly, But involve great expense, it is difficult to commonly used.

Utility model content

The purpose of this utility model is to provide a kind of mechanical arms convenient for adjusting grasping force, to solve above-mentioned background The problem of being proposed in technology.

To achieve the above object, the utility model provides the following technical solutions: a kind of machinery convenient for adjusting grasping force The inner cavity of shell is arranged in arm, including shell and rack gear, the rack gear, and the front inside wall left and right ends of the shell are respectively provided with There is hydraulic telescopic arm, the top position in the left and right ends of the rack gear is provided with stressed plate, the bottom of the stressed plate and liquid The top connection of telescopic arm is pressed, the left and right side of the position of the front inside wall of the shell on the lower is provided with gear, described The left and right ends bottom of stressed plate is provided with tooth socket, and tooth socket fastens with gear surface, the identical gear of two structures The back side be symmetrically fixedly installed with clamp arm, the top position of the inner wall of the shell is fixedly installed bearing, the bearing it is interior Wall is equipped with threaded post, and the bottom of the threaded post is screwed with sleeve, and the bottom of the sleeve is equipped with elastic component, the elasticity The top of the bottom connection stressed plate of part, the inner cavity rotary setting of the shell have transmission gear, and the top of the threaded post connects It is connected to change gear, and the top of change gear engages with transmission gear surface, the front of the transmission gear is provided with connection Column, and connecting column runs through the front table wall of shell, the front of connecting column is fixedly installed adjusting nut.

Preferably, the surface of the clamp arm is equipped with regulating device, and regulating device runs through clamp arm surfaces, the adjusting dress The one end for resting against nearly clamp arm inner wall is provided with rubber parts, the bottom interior wall of the bottom connection clamp arm of the rubber parts.

Preferably, the regulating device includes fixing bearing, and the surface of the fixing bearing is fixedly connected with the inner cavity of clamp arm, The inner wall of the fixing bearing is fixedly installed threaded rod, and the right lateral surface of the threaded rod is screwed with screw shell, the spiral shell Run through the table wall of clamp arm on the left of line sleeve, is provided with nut on the left of the threaded rod, and the outer wall of clamp arm is arranged in nut.

Preferably, the rubber parts is rigid rubber parts, and the surface of rubber parts is evenly arranged with semi-circular non-slip process, The surface of connection screw thread sleeve at the top of the another side of the rubber parts.

Preferably, the surface of the sleeve is provided with square protrusion, and square protrusion is strip straight down, described The front and back inner wall of shell is provided with rectangular sliding slot corresponding with square protrusion.

Preferably, the bottom and left and right ends of the shell are respectively arranged with and rack gear and clamp arm phase close to the position of bottom Corresponding hole.

Compared with prior art, the utility model has the beneficial effects that the utility model is driven by rotating adjusting nut Transmission gear rotation, transmission gear drives threaded post to rotate by change gear, since the surface of threaded post is provided with screw thread, set The inner wall of cylinder is provided with corresponding internal screw thread, can make to move under sleeve phase, changes the natural length of elastic component, therefore come Change the elastic force of elastic component, to change the suffered resistance of clamp arm clamping, structure is simple, it is cheap, convenient for adjusting clamping Dynamics is effectively prevent in clamping process broken there is a situation where falling or clamping object convenient for clamping various objects.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the utility model regulating device structural schematic diagram；

Fig. 3 is the utility model side view.

In figure: 1 shell, 2 rack gears, 3 hydraulic telescopic arms, 4 stressed plates, 5 gears, 6 clamp arm, 7 regulating devices, 71 thread bush Cylinder, 72 fixing bearings, 73 threaded rods, 74 nuts, 8 rubber parts, 9 bearings, 10 threaded posts, 11 sleeves, 12 elastic components, 13 deflecting teeth Wheel, 14 transmission gears, 15 adjusting nuts.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of manipulator convenient for adjusting grasping force The inner cavity of shell 1 is arranged in arm, including shell 1 and rack gear 2, rack gear 2, and the front inside wall left and right ends of shell 1 are provided with liquid Telescopic arm 3 is pressed, power is provided for the clamping of clamp arm 6, so that clamp arm 6 is clamped uniform force, the position that the left and right ends of rack gear 2 are top is equal It is provided with stressed plate 4, convenient for connection hydraulic telescopic arm 3 and rack gear 2, band carry-over bar 2 is moved up and down, the bottom of stressed plate 4 and liquid The top connection of telescopic arm 3 is pressed, the left and right side of the position of the front inside wall of shell 1 on the lower is provided with gear 5, passes through tooth Item 2 is rotated with moving gear 5, and the identical gear 5 of two structures rotates round about, keep the bottom of clamp arm 6 close to each other or Separate, the left and right ends bottom of stressed plate 4 is provided with tooth socket, and tooth socket fastens with 5 surface of gear, the identical tooth of two structures The back side of wheel 5 is symmetrically fixedly installed with clamp arm 6, and the top position of the inner wall of shell 1 is fixedly installed bearing 9, convenient for fixed spiral shell The position of line column 10 makes sleeve 11 move up and down, and the inner wall of bearing 9 is equipped with threaded post 10, and the bottom of threaded post 10 is screwed with set Cylinder 11, the bottom of sleeve 11 are equipped with elastic component 12, the top of the bottom connection stressed plate 4 of elastic component 12, the inner cavity rotation of shell 1 Turn to be provided with transmission gear 14, the top of threaded post 10 is connected with change gear 13, by the power of the transmission gear 14 longitudinally rotated It is converted into the power of the change gear 13 of lateral rotation, and the top of change gear 13 engages with 14 surface of transmission gear, driving cog The front of wheel 14 is provided with connecting column, and connecting column runs through the front table wall of shell 1, and the front of connecting column is fixedly installed adjusting Nut 15 makes transmission gear 14 rotate convenient for adjusting in outside.

Wherein, the surface of clamp arm 6 is equipped with regulating device 7, and regulating device 7 runs through 6 surface of clamp arm, and regulating device 7 is leaned on One end of 6 inner wall of nearly clamp arm is provided with rubber parts 8, the bottom interior wall of the bottom connection clamp arm 6 of rubber parts 8, convenient for adjusting rubber The setting angle of part 8 enables rubber parts 8 to be preferably bonded with object of different shapes；

Regulating device 7 includes fixing bearing 72, and the surface of fixing bearing 72 is fixedly connected with the inner cavity of clamp arm 6, fixing bearing 72 inner wall is fixedly installed threaded rod 73, and the right lateral surface of threaded rod 73 is screwed with screw shell 71,71 left side of screw shell Through the table wall of clamp arm 6, the left side of threaded rod 73 is provided with nut 74, and the outer wall of clamp arm 6 is arranged in nut 74, convenient for operation Personnel manually adjust；

Rubber parts 8 is rigid rubber parts, and the surface of rubber parts is evenly arranged with semi-circular non-slip process, rubber parts 8 The surface of connection screw thread sleeve 71, increases the frictional force of clamping, prevents object from falling at the top of another side；

The surface of sleeve 11 is provided with square protrusion, and square protrusion is strip straight down, the front of shell 1 and Back side inner wall is provided with rectangular sliding slot corresponding with square protrusion, moves up and down convenient for sleeve 11, ensure that sleeve 11 is transported Capable stability；

The bottom and left and right ends of shell 1 are respectively arranged with hole corresponding with rack gear 2 and clamp arm 6 close to the position of bottom Hole, it is mobile convenient for rack gear 2 and clamp arm 6.

Working principle: when needing to clamp object, hydraulic telescopic arm 3 is shunk, and makes to move under 2 phase of rack gear, rack gear 2 is with movable tooth The rotation of 5 phase opposite directions is taken turns, the bottom of clamp arm 6 is constantly close to each other to grip objects, during rack gear 2 moves up Bounce of the rack gear 2 by elastic component 12, the position of rack gear 2 is more top, and bounce is bigger, becomes the clamping force of clamp arm 6 It is small, prevent object to be damaged since clamping force is excessive, rotating adjusting nut 15, adjusting nut 15 is with nutating gear 14 Rotation, transmission gear 14 drives threaded post 10 to rotate by change gear 13, since the surface of threaded post 10 is provided with screw thread, set The inner wall of cylinder 11 is provided with corresponding internal screw thread, can make to move under 11 phase of sleeve, changes the natural length of elastic component 12, Therefore change the elastic force of elastic component 12, so that changing clamp arm 6 clamps suffered resistance, the dynamics of the bigger clamping of resistance is smaller, The dynamics of the smaller clamping of resistance is bigger, convenient for clamping various different size of objects.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims

1. a kind of mechanical arm convenient for adjusting grasping force, including shell (1) and rack gear (2), it is characterised in that: the rack gear (2) it is arranged in the inner cavity of shell (1), the front inside wall left and right ends of the shell (1) are provided with hydraulic telescopic arm (3), institute The top position in left and right ends for stating rack gear (2) is provided with stressed plate (4), the bottom of the stressed plate (4) and hydraulically extensible The top of arm (3) connects, and the left and right side of the position of the front inside wall of the shell (1) on the lower is provided with gear (5), institute The left and right ends bottom for stating stressed plate (4) is provided with tooth socket, and tooth socket fastens with gear (5) surface, and two structures are identical The back side of the gear (5) is symmetrically fixedly installed with clamp arm (6), and the position that the inner wall of the shell (1) is top is fixedly installed The inner wall of bearing (9), the bearing (9) is equipped with threaded post (10), and the bottom of the threaded post (10) is screwed with sleeve (11), The bottom of the sleeve (11) is equipped with elastic component (12), the top of bottom connection stressed plate (4) of the elastic component (12), institute The inner cavity rotary setting for stating shell (1) has transmission gear (14), and the top of the threaded post (10) is connected with change gear (13), And the top of change gear (13) engages with transmission gear (14) surface, the front of the transmission gear (14) is provided with connection Column, and connecting column runs through the front table wall of shell (1), the front of connecting column is fixedly installed adjusting nut (15).

2. a kind of mechanical arm convenient for adjusting grasping force according to claim 1, it is characterised in that: the clamp arm (6) surface is equipped with regulating device (7), and regulating device (7) runs through clamp arm (6) surface, and the regulating device (7) is close to folder One end of arm (6) inner wall is provided with rubber parts (8), the bottom interior wall of bottom connection clamp arm (6) of the rubber parts (8).

3. a kind of mechanical arm convenient for adjusting grasping force according to claim 2, it is characterised in that: the adjusting dress Setting (7) includes fixing bearing (72), and the surface of the fixing bearing (72) is fixedly connected with the inner cavity of clamp arm (6), the fixing axle The inner wall for holding (72) is fixedly installed threaded rod (73), and the right lateral surface of the threaded rod (73) is screwed with screw shell (71), Run through the table wall of clamp arm (6) on the left of the screw shell (71), is provided with nut (74) on the left of the threaded rod (73), and spiral shell Outer wall of female (74) setting in clamp arm (6).

4. a kind of mechanical arm convenient for adjusting grasping force according to claim 2, it is characterised in that: the rubber parts It (8) is rigid rubber parts, and the surface of rubber parts is evenly arranged with semi-circular non-slip process, the another side of the rubber parts (8) The surface of top connection screw thread sleeve (71).

5. a kind of mechanical arm convenient for adjusting grasping force according to claim 1, it is characterised in that: the sleeve (11) surface is provided with square protrusion, and square protrusion is strip straight down, the front and back of the shell (1) Inner wall is provided with rectangular sliding slot corresponding with square protrusion.

6. a kind of mechanical arm convenient for adjusting grasping force according to claim 1, it is characterised in that: the shell (1) bottom and left and right ends is respectively arranged with hole corresponding with rack gear (2) and clamp arm (6) close to the position of bottom.