CN220179374U

CN220179374U - Folding mechanical arm

Info

Publication number: CN220179374U
Application number: CN202321604688.5U
Authority: CN
Inventors: 张勇
Original assignee: Shaanxi Yihao Technology Development Co ltd
Current assignee: Shaanxi Yihao Technology Development Co ltd
Priority date: 2023-06-21
Filing date: 2023-06-21
Publication date: 2023-12-15
Anticipated expiration: 2033-06-21

Abstract

The utility model discloses a folding mechanical arm, and relates to the technical field of mechanical arms. The folding mechanical arm comprises a base, wherein a cross arm is arranged at the top of the base, a first connecting plate is fixedly connected to the side face of the cross arm, a second connecting plate is arranged on the side face of the first connecting plate, a vertical arm is fixedly connected to one side, far away from the first connecting plate, of the second connecting plate, a positioning block is fixedly connected to the top of the first connecting plate, a hinge is fixedly connected to one side, close to the first connecting plate, of the second connecting plate, and a pin shaft is movably connected between the hinge and the positioning block.

Description

Folding mechanical arm

Technical Field

The utility model relates to the technical field of mechanical arms, in particular to a folding mechanical arm.

Background

The mechanical arm is an automatic mechanical device which is most widely and practically applied in the technical field of robots, can see the figure and the shadow of the mechanical arm in the fields of industrial manufacture, medical treatment, entertainment service, military, semiconductor manufacture, space exploration and the like, has the advantages of large bearing capacity, good rigidity and light dead weight, and can replace people to finish the work which is difficult to finish by manpower.

The utility model of publication number CN216940679U discloses a folding robotic arm, including the xarm, one side fixedly connected with first connecting plate of xarm, the surface threaded connection of first connecting plate has the locating pin, the surface of first connecting plate has the second connecting plate through locating pin threaded connection, the surface threaded connection of second connecting plate has the fixed screw, through tearing down locating pin and other connecting bolt from first connecting plate and second connecting plate in the above-mentioned application file, make first connecting plate and second connecting plate separate, lay down the upside of xarm with the vertical arm rotation around the hinge, accomplish folding in order to reduce occupation space and make things convenient for the transportation, it is more troublesome when demolishing first connecting plate and second connecting plate, need take off several connecting bolt, and is time consuming and power, and connecting bolt takes off the back and loses easily, very inconvenient.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a folding mechanical arm which solves the problems in the background art. In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a folding robotic arm, includes the base, the top of base is provided with the xarm, the side fixedly connected with first connecting plate of xarm, the side of first connecting plate is provided with the second connecting plate, one side fixedly connected with erects the arm of first connecting plate is kept away from to the second connecting plate, first connecting plate top fixedly connected with locating piece, one side fixedly connected with hinge that the second connecting plate is close to first connecting plate, swing joint has the round pin axle between hinge and the locating piece, the both ends threaded connection of round pin axle has the nut, the inside of second connecting plate is provided with convenient folding mechanism, convenient folding mechanism includes fixture block, draw-in groove, atmospheric pressure storehouse, fixture block fixedly connected with is kept away from one side of xarm at first connecting plate, set up flutedly on the fixture block, the inside of recess is kept away from one side of erecting the arm through spring sliding connection, slot, spout are seted up at the top of draw-in groove, atmospheric pressure storehouse fixedly connected with is in the inside of second connecting plate, the one end of atmospheric pressure storehouse is provided with the gasbag, the other end inside sliding connection of atmospheric pressure storehouse has the slider, one side is kept away from the piston rod fixedly connected with the piston rod.

Preferably, the speed reducing mechanism comprises a straight rod and speed reducing particles, the straight rod is hinged to the top of the sliding block, a rubber block is fixedly connected to the top of the straight rod, an elastic rope is fixedly connected to the side face of the straight rod, one end, away from the straight rod, of the elastic rope is fixedly connected with the sliding block, the speed reducing particles are fixedly connected to the top of the sliding groove, the sliding block moves the rubber block rightwards to collide with the speed reducing particles to drive the straight rod to deflect, and large resistance cannot be generated at the moment.

Preferably, the diameter of the pin shaft hole formed in the hinge is larger than that of the pin shaft, the depth of the clamping groove is larger than that of the clamping block, the first connecting plate and the second connecting plate cannot move relatively due to the fact that the nut which is screwed down at first, and the first connecting plate can move to the inside of the second connecting plate in a small range after the nut is unscrewed.

Preferably, the arc-shaped block is located in the slot in the initial state, the cambered surface of the arc-shaped block is left, the arc-shaped block is clamped in the slot at the beginning to enable the first connecting plate and the second connecting plate to be unable to be separated, and the cambered surface of the arc-shaped block can retract into the groove when being extruded.

Preferably, the air bag is in an expansion state under the action of no external force, the bottom of the sliding block and the top of the clamping block are positioned on the same horizontal plane, when the air bag is extruded, the air bag is internally extruded to enter the air pressure bin, so that the piston rod moves rightwards to drive the sliding block to move into the slot.

Preferably, the deceleration particles and the rubber blocks are made of the same rubber material, the rubber blocks are close to the deceleration particles, the rubber blocks collide with the deceleration particles when moving leftwards, and the rubber blocks made of the rubber materials collide with the deceleration particles to generate larger resistance.

The utility model provides a folding mechanical arm. The beneficial effects are as follows:

(1) The utility model is provided with the convenient folding mechanism, so that when the folding is needed, nuts at two ends of the pin shaft can be unscrewed, the first connecting plate is extruded to the second connecting plate and then pulled out backwards, the first connecting plate and the second connecting plate can be separated, and at the moment, the vertical arm can be rotated around the hinge to be placed on the upper side of the cross arm, and the folding is completed, so that the occupied space is reduced, and the transportation is convenient.

(2) The utility model has the advantages that the speed of the backward movement of the sliding block can be further slowed down by arranging the speed reducing mechanism, so that the first connecting plate can be smoothly pulled out backward, and the situation that the faster arc-shaped block of the backward movement of the sliding block is blocked into the slot again is avoided.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is an enlarged view of the structure of the present utility model at A;

FIG. 3 is a cross-sectional view of the overall structure of the present utility model;

FIG. 4 is a schematic view of a convenient folding mechanism according to the present utility model;

FIG. 5 is an enlarged view of the structure of the present utility model at B;

fig. 6 is a schematic diagram of the structure of the speed reducing mechanism of the present utility model.

In the figure: 1. a base; 2. a cross arm; 3. a first connection plate; 4. a second connecting plate; 5. a vertical arm; 6. a positioning block; 7. a hinge; 8. a pin shaft; 9. a nut; 10. the folding mechanism is convenient; 101. a clamping block; 102. a groove; 103. an arc-shaped block; 104. a clamping groove; 105. a slot; 106. a chute; 107. an air pressure bin; 108. an air bag; 109. a piston rod; 110. a slide block; 11. a speed reducing mechanism; 111. a straight rod; 112. a rubber block; 113. an elastic rope; 114. and decelerating the particles.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Example 1

Referring to fig. 1-5, a folding mechanical arm comprises a base 1, a cross arm 2 is arranged at the top of the base 1, a first connecting plate 3 is fixedly connected to the side surface of the cross arm 2, a second connecting plate 4 is arranged on the side surface of the first connecting plate 3, a vertical arm 5 is fixedly connected to one side of the second connecting plate 4 away from the first connecting plate 3, a positioning block 6 is fixedly connected to the top of the first connecting plate 3, a hinge 7 is fixedly connected to one side of the second connecting plate 4 close to the first connecting plate 3, a pin shaft 8 is movably connected between the hinge 7 and the positioning block 6, nuts 9 are connected to two ends of the pin shaft 8 in a threaded manner, a convenient folding mechanism 10 is arranged in the second connecting plate 4, the convenient folding mechanism 10 comprises a clamping block 101, a clamping groove 104 and an air pressure bin 107, the clamping block 101 is fixedly connected to one side of the first connecting plate 3 away from the cross arm 2, a groove 102 is formed in the clamping block 101, an arc-shaped block 103 is connected to the inside of the groove 102 in a sliding manner through a spring, the clamping groove 104 is arranged on one side of the second connecting plate 4 far away from the vertical arm 5, the diameter of a pin shaft hole arranged on the hinge 7 is larger than the diameter of the pin shaft 8, the depth of the clamping groove 104 is larger than the width of the clamping block 101, the first connecting plate 3 and the second connecting plate 4 cannot move relatively due to the fact that the nut 9 is screwed down at the beginning, after the nut 9 is unscrewed, the first connecting plate 3 can move to the inside of the second connecting plate 4 in a small range, the slot 105 and the chute 106 are arranged at the top of the clamping groove 104, the arc-shaped block 103 is positioned in the slot 105 in an initial state, the cambered surface of the arc-shaped block 103 is leftwards, the arc-shaped block 103 is clamped in the slot 105 at the beginning, the first connecting plate 3 and the second connecting plate 4 cannot be separated, the cambered surface of the arc-shaped block 103 can retract into the groove 102 when being extruded, the air pressure bin 107 is fixedly connected to the inside the second connecting plate 4, one end of the air pressure bin 107 is provided with the air bag 108, the other end of the air pressure bin 107 is internally and slidably connected with a piston rod 109, one side, away from the air pressure bin 107, of the piston rod 109 is fixedly connected with a sliding block 110, the air bag 108 is in an expansion state under the action of no external force, the bottom of the sliding block 110 and the top of the clamping block 101 are in the same horizontal plane, when the air bag 108 is extruded, the air bag 108 is internally extruded to enter the air pressure bin 107, the piston rod 109 is enabled to move rightwards to drive the sliding block 110 to move into the slot 105, and the top of the sliding block 110 is provided with a speed reducing mechanism 11.

When the integral device needs to be transported, the nut 9 can be unscrewed firstly, the first connecting plate 3 is extruded towards the direction of the second connecting plate 4, the clamping block 101 moves towards the inside of the clamping groove 104 at the moment, the cambered surface of the arc-shaped block 103 is extruded into the retraction groove 102, the clamping block 101 cannot be influenced to move towards the inside of the clamping groove 104, then the clamping block 101 extrudes the air bag 108 to enable air pressure in the air bag 108 to enter the air pressure bin 107, the air pressure enters the air pressure bin 107 to drive the piston rod 109 to move rightwards, the piston rod 109 moves rightwards to drive the sliding block 110 to move into the slot 105, the first connecting plate 3 is pulled out quickly at the moment, the arc-shaped block 103 can be separated from the second connecting plate 4 because the sliding block 110 cannot be clamped into the slot 105, the vertical arm 5 is rotated around the hinge 7 to be put on the upper side of the cross arm 2, and the folding is completed, so that occupied space is reduced, and the transportation is convenient.

Example two

Referring to fig. 1-6, on the basis of the first embodiment, the speed reducing mechanism 11 includes a straight rod 111 and speed reducing particles 114, the straight rod 111 is hinged at the top of the sliding block 110, the top of the straight rod 111 is fixedly connected with a rubber block 112, a side surface of the straight rod 111 is fixedly connected with an elastic rope 113, one end of the elastic rope 113 away from the straight rod 111 is fixedly connected with the sliding block 110, the speed reducing particles 114 are fixedly connected at the top of the sliding groove 106, the sliding block 110 moves the rubber block 112 rightwards to drive the straight rod 111 to deflect by collision with the speed reducing particles 114, no larger resistance is generated at this moment, the speed reducing particles 114 and the rubber block 112 are made of the same rubber material, the rubber block 112 is close to the speed reducing particles 114, the rubber block 112 collides with the speed reducing particles 114 when moving leftwards, and the rubber block 112 made of rubber material collides with the speed reducing particles 114 to generate larger resistance.

When the sliding block 110 moves rightwards to enter the slot 105, the sliding block 110 moves rightwards to collide with the deceleration particles 114 to drive the straight rod 111 to deflect, no larger resistance is generated at this time, the elastic rope 113 drives the straight rod 111 to restore, the air bag 108 resumes to drive the rubber block 112 to move leftwards to collide with the deceleration particles 114, and the rubber block 112 made of rubber collides with the deceleration particles 114 to generate larger resistance.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims

1. Folding robotic arm, including base (1), its characterized in that: the folding type folding mechanism comprises a base (1), wherein a cross arm (2) is arranged at the top of the base (1), a first connecting plate (3) is fixedly connected to the side face of the cross arm (2), a second connecting plate (4) is arranged on the side face of the first connecting plate (3), a vertical arm (5) is fixedly connected to one side, far away from the first connecting plate (3), of the second connecting plate (4), a positioning block (6) is fixedly connected to the top of the first connecting plate (3), a hinge (7) is fixedly connected to one side, close to the first connecting plate (3), of the second connecting plate (4), a pin shaft (8) is movably connected between the hinge (7) and the positioning block (6), nuts (9) are connected to two ends of the pin shaft (8) in a threaded mode, and a convenient folding mechanism (10) is arranged inside the second connecting plate (4);

the utility model provides a convenient folding mechanism (10) includes fixture block (101), draw-in groove (104), atmospheric pressure storehouse (107), one side that xarm (2) was kept away from in first connecting plate (3) is connected to fixture block (101), set up fluted (102) on fixture block (101), the inside of fluted (102) is through spring sliding connection having arc type piece (103), one side that erects arm (5) was kept away from in second connecting plate (4) is seted up to draw-in groove (104), slot (105), spout (106) have been seted up at the top of draw-in groove (104), inside at second connecting plate (4) is connected to atmospheric pressure storehouse (107), one end in atmospheric pressure storehouse (107) is provided with gasbag (108), the inside sliding connection in other end in atmospheric pressure storehouse (107) has piston rod (109), one side fixedly connected with slider (110) are kept away from in piston rod (109), the top of slider (110) is provided with reduction gears (11).

2. A folding robotic arm as claimed in claim 1, wherein: the speed reducing mechanism (11) comprises a straight rod (111) and speed reducing particles (114), the straight rod (111) is hinged to the top of the sliding block (110), a rubber block (112) is fixedly connected to the top of the straight rod (111), an elastic rope (113) is fixedly connected to the side face of the straight rod (111), one end, far away from the straight rod (111), of the elastic rope (113) is fixedly connected with the sliding block (110), and the speed reducing particles (114) are fixedly connected to the top of the sliding groove (106).

3. A folding robotic arm as claimed in claim 1, wherein: the diameter of the pin shaft hole formed in the hinge (7) is larger than that of the pin shaft (8), and the depth of the clamping groove (104) is larger than the width of the clamping block (101).

4. A folding robotic arm as claimed in claim 1, wherein: the arc-shaped block (103) is positioned in the slot (105) in an initial state, and the cambered surface of the arc-shaped block (103) is leftwards.

5. A folding robotic arm as claimed in claim 1, wherein: the air bag (108) is in an expanded state under the action of no external force, and the bottom of the sliding block (110) and the top of the clamping block (101) are positioned on the same horizontal plane.

6. A folding robotic arm as claimed in claim 2, wherein: the deceleration particles (114) and the rubber blocks (112) are made of the same rubber material, and the rubber blocks (112) are close to the deceleration particles (114).