CN213946483U

CN213946483U - Mechanical clamping arm for machine manufacturing

Info

Publication number: CN213946483U
Application number: CN202022749593.5U
Authority: CN
Inventors: 王晚英; 周玉宁; 王力
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-08-13
Anticipated expiration: 2030-11-25

Abstract

The utility model provides a mechanical clamping arm for machine-building relates to mechanical clamping arm technical field, including organism and clamping device, the organism is mechanical clamping arm, the one end of organism is rotated and is connected with the rotor arm, the one end that the organism was kept away from to the rotor arm is equipped with clamping device, clamping device includes the rectangular block, the one end and the rotor arm fixed connection of rectangular block, the spout has been seted up to the one end that the rotor arm was kept away from to the rectangular block, the inner wall sliding connection of spout has two sliding plates. The utility model discloses, thereby in getting into the standing groove, make the connecting rod break away from the fixture block, thereby make two arm lock loosen the screw, thereby can solve current mechanical clamping arm and carrying out centre gripping during operation, long screw that need the not equidimension of centre gripping, and traditional robotic arm's size all is fixed, just need to change clamping device when the screw that needs the centre gripping size to differ, will lead to the problem of greatly reduced efficiency like this.

Description

Mechanical clamping arm for machine manufacturing

Technical Field

The utility model relates to a mechanical clamping arm technical field especially relates to a mechanical clamping arm for machine-building.

Background

The mechanical arm is an automatic mechanical device which is widely applied in the technical field of robots, can be seen in the fields of industrial manufacturing, entertainment service, space exploration and the like, and has a common characteristic of receiving instructions despite different forms.

When the existing mechanical clamping arm is used for clamping, screws with different sizes need to be clamped for a long time, the sizes of the traditional mechanical arms are fixed, and clamping devices need to be replaced when screws with different clamping sizes are needed, so that the efficiency is greatly reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a mechanical clamping arm for mechanical manufacturing.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a mechanical clamping arm for machine manufacturing comprises a machine body and a clamping device, wherein the machine body is the mechanical clamping arm, one end of the machine body is rotatably connected with a rotating arm, one end of the rotating arm far away from the machine body is provided with a clamping device, the clamping device comprises a rectangular block, one end of the rectangular block is fixedly connected with the rotating arm, one end of the rectangular block, which is far away from the rotating arm, is provided with a sliding chute, the inner wall of the sliding chute is connected with two sliding plates in a sliding way, the two sliding plates are symmetrically distributed by the central axis of the sliding chute, telescopic rods are welded at the ends of the two sliding plates close to each other, the telescopic rods are composed of two hollow rods with different sizes, the surface of the small rod is connected with the inner wall of the large rod in a sliding mode, one end, far away from the sliding plate, of the telescopic rod is fixedly connected with clamping arms, the clamping arms are C-shaped, and the telescopic rod is sleeved with two pipes in a sliding mode.

Preferably, a second spring is arranged in the telescopic rod, and two ends of the second spring are fixedly connected with the two pipes respectively.

Preferably, the side walls of the two clamping arms are fixedly connected with a clamping block and a connecting rod respectively, a hole is formed in the surface of the clamping block and penetrates through the clamping block, the connecting rod is L-shaped, the long arm end of the connecting rod is rotatably connected with two limiting blocks, and the two limiting blocks are symmetrically distributed with the central axis of the connecting rod.

Preferably, the standing groove has all been seted up to the both sides of connecting rod long arm end, the inner wall of standing groove rotates and is connected with the stopper, the stopper is the slope form, the first spring of one end fixedly connected with of stopper, the other end and the standing groove fixed connection of first spring.

Preferably, the one end of rotor arm is equipped with protector, protector includes eight sliding blocks, and two liang of a set of eight sliding blocks, the one end and the rotor arm fixed connection of sliding block, the sliding block is "U" font, the inner wall sliding connection of sliding block has splint, splint are "U" font, the surface cover of rotor arm has the crash pad, the one end and the splint laminating of rotor arm are kept away from to the crash pad.

Preferably, the one end fixedly connected with fat jacket of rotor arm, the inside of fat jacket is hollow, the inner wall fixedly connected with third spring of fat jacket, the one end fixedly connected with slide bar of fat jacket is kept away from to the third spring, slide bar and fat jacket sliding connection, the through-hole has been seted up to the short arm end of splint, the size of through-hole and the size phase-match of slide bar.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. in the utility model, by arranging the clamping device, the screw is positioned between the two clamping arms by rotating the rectangular block to the screw position, at the moment, the two sliding plates in the chute are driven by the cylinder, so that the two sliding plates drive the two clamping arms to move towards the direction close to each other, so that the two clamping arms clamp the screw, when the screw is overlarge, the two clamping arms move towards the direction far away from each other by the telescopic rod, at the moment, the second spring provides a reverse force for the clamping arms, so that the screw is clamped by the clamping arms, when the two clamping arms approach to each other, the connecting rods at the two sides of the clamping arms drive the limiting block to move towards the clamping block, when the limiting block touches the clamping block, the limiting block is contracted towards the inside of the placing groove, when the limiting block passes through the clamping block, the spring in the placing groove pops the limiting block, at the moment, one end of the limiting block is attached to the clamping block, so that the two clamping arms are fixed, when the two clamping arms need to be loosened, two arm lock remove to the direction of keeping away from each other, the pulling force is received to the stopper this moment, make the stopper rotate to the direction of keeping away from first spring, thereby get into the standing groove, make the connecting rod break away from the fixture block, thereby make two arm lock loosen the screw, thereby can solve current mechanical clamping arm when carrying out centre gripping work, the screw of the equidimension of long needs centre gripping not, and traditional robotic arm's size all is fixed, just need to change clamping device when the screw that needs the centre gripping size to differ, the problem that will lead to greatly reduced efficiency like this.

2. The utility model discloses in, through setting up protector, through pulling splint, make splint remove to the direction of keeping away from the rotor arm, at this moment, with the crashproof pad stopper go into between splint and the rotor arm, extrude the slide bar in to the telescopic this moment, push back splint to the normal position again, make through-hole and slide bar on the splint be in same straight line, loosen the slide bar in the telescopic this moment, make the third spring rebound the normal position with the slide bar, thereby make the slide bar pass the through-hole on splint surface, make splint fixed, thereby make splint fixed with the crashproof pad, thereby traditional mechanical clamping arm does not have the protection pad can be solved, when operating personnel is close to, mechanical arm's problem can be hit.

Drawings

Fig. 1 is a schematic perspective view of a mechanical clamping arm for machine manufacturing according to the present invention;

FIG. 2 is a schematic structural view of a clamping device in a mechanical clamping arm for machine manufacturing according to the present invention;

fig. 3 is a schematic structural view of a portion a in fig. 2 of a mechanical clamping arm for machine manufacturing according to the present invention;

FIG. 4 is a schematic structural view of a telescopic rod of a mechanical clamping arm for machine manufacturing according to the present invention;

FIG. 5 is a schematic structural view of a mechanical clamping arm sleeve for machine manufacturing according to the present invention;

fig. 6 is the utility model provides a schematic structural diagram of mechanical clamping arm splint for machine-building.

Illustration of the drawings: 1. a body; 2. a rotating arm; 3. a clamping device; 301. a rectangular block; 302. A chute; 303. a sliding plate; 304. a telescopic rod; 305. clamping arms; 306. a connecting rod; 307. A clamping block; 308. a placement groove; 309. a limiting block; 310. a first spring; 311. a second spring; 4. a guard; 41. a slider; 42. a splint; 43. sleeving a barrel; 44. a third spring; 45. a slide bar; 46. and a through hole.

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the limitations of the specific embodiments of the present disclosure.

Embodiment 1, as shown in fig. 1-6, the utility model provides a mechanical clamping arm for machine-building, including organism 1 and clamping device 3, organism 1 is mechanical clamping arm, and the one end of organism 1 rotates and is connected with rotor arm 2.

The specific arrangement and function of the holding means 3 and the shielding means 4 will be described in detail below.

As shown in fig. 1 and fig. 2, a clamping device 3 is disposed at one end of the rotating arm 2 away from the machine body 1, the clamping device 3 includes a rectangular block 301, one end of the rectangular block 301 is fixedly connected to the rotating arm 2, a sliding slot 302 is disposed at one end of the rectangular block 301 away from the rotating arm 2, two sliding plates 303 are slidably connected to an inner wall of the sliding slot 302, the two sliding plates 303 are symmetrically distributed about a central axis of the sliding slot 302, a telescopic rod 304 is welded to one end of each of the two sliding plates 303 close to each other, the telescopic rod 304 is composed of two hollow rods with different sizes, a surface of the small rod is slidably connected to an inner wall of the large rod, a clamping arm 305 is fixedly connected to one end of the telescopic rod 304 away from the sliding plate 303, by rotating the rectangular block 301 to a screw, a screw is located between the two clamping arms 305, at this time, the two sliding plates 303 in the sliding slot 302 are driven by an air cylinder, so that the two sliding plates 303 drive the two clamping arms 305 to move toward each other, so that the two clamping arms 305 clamp the screw, when the screw is too big, the two clamping arms 305 move towards the direction away from each other through the telescopic rod 304, at this time, the second spring 311 provides a reverse force for the clamping arms 305, so that the clamping arms 305 clamp the screw, the clamping arms 305 are in a "C" shape, the telescopic rod 304 is internally provided with the second spring 311, two ends of the second spring 311 are respectively fixedly connected with the two pipes, the side walls of the two clamping arms 305 are respectively and fixedly connected with the clamping block 307 and the connecting rod 306, the surface of the clamping block 307 is provided with a hole, the hole penetrates through the clamping block 307, when the two clamping arms 305 approach each other, the connecting rods 306 at two sides of the clamping arms 305 drive the limiting block 309 to move towards the clamping block 307, when the limiting block 309 contacts the clamping block 307, the limiting block 309 contracts towards the placing groove 308, when the limiting block 309 passes through the clamping block 307, the spring in the placing groove 308 ejects the limiting block 309, at this time, one end of the limiting block 309 is attached to the clamping block 307, the two clamping arms 305 are fixed, the connecting rod 306 is in an L shape, the long arm end of the connecting rod 306 is rotatably connected with two limiting blocks 309, the two limiting blocks 309 are symmetrically distributed around the central axis of the connecting rod 306, the placing grooves 308 are formed in two sides of the long arm end of the connecting rod 306, the inner wall of each placing groove 308 is rotatably connected with the limiting block 309, the limiting block 309 is in an inclined shape, one end of each limiting block 309 is fixedly connected with a first spring 310, when the two clamping arms 305 are required to be loosened, the two clamping arms 305 move towards the direction away from each other, the limiting block 309 is pulled at the moment, the limiting block 309 is rotated towards the direction away from the first spring 310 and then enters the placing groove 308, the connecting rod 306 is separated from the clamping block 307, the two clamping arms 305 are loosened by screws, and the other end of the first spring 310 is fixedly connected with the placing grooves 308.

The whole clamping device 3 achieves the effect that by arranging the clamping device 3, the screw is positioned between the two clamping arms 305 by rotating the rectangular block 301 to the screw position, at the moment, the two sliding plates 303 in the sliding groove 302 are driven by the air cylinder, so that the two sliding plates 303 drive the two clamping arms 305 to move towards each other, so that the two clamping arms 305 clamp the screw, when the screw is too large, the two clamping arms 305 move towards each other by the telescopic rod 304, at the moment, the second spring 311 provides a reverse force for the clamping arms 305, so that the clamping arms 305 clamp the screw, when the two clamping arms 305 approach each other, the connecting rods 306 at the two sides of the clamping arms 305 drive the limiting block 309 to move towards the clamping block 307, when the limiting block 309 contacts the clamping block 307, the limiting block 309 contracts towards the placing groove 308, and when the limiting block 309 passes through the clamping block 307, the spring in the placing groove 308 ejects the limiting block 309, stopper 309's one end and fixture block 307 are laminated mutually this moment, make two arm lock 305 fixed, when two arm lock 305 are loosened to needs, two arm lock 305 move to the direction of keeping away from each other, stopper 309 receives the pulling force this moment, make stopper 309 rotate to the direction of keeping away from first spring 310, thereby get into in the standing groove 308, make connecting rod 306 break away from fixture block 307, thereby make two arm lock 305 loosen the screw, thereby can solve current mechanical clamping arm when carrying out centre gripping work, it needs the not screw of equidimension of centre gripping to be long, and traditional robotic arm's size is all fixed, just need to change clamping device 3 when the screw that needs the centre gripping size to differ, so will lead to the problem of greatly reduced efficiency.

As shown in fig. 1 and 6, a protection device 4 is disposed at one end of the rotating arm 2, the protection device 4 includes eight sliding blocks 41, each two of the eight sliding blocks 41 are in a group, one end of each sliding block 41 is fixedly connected with the rotating arm 2, each sliding block 41 is in a "U" shape, a clamping plate 42 is slidably connected to the inner wall of each sliding block 41, the clamping plate 42 is moved in a direction away from the rotating arm 2 by pulling the clamping plate 42, at this time, an anti-collision pad is inserted between the clamping plate 42 and the rotating arm 2, at this time, the sliding rod 45 is squeezed into a sleeve 43, the clamping plate 42 is pushed back to the original position, the clamping plate 42 is in a "U" shape, an anti-collision pad is sleeved on the surface of the rotating arm 2, one end of the anti-collision pad, far away from the rotating arm 2, is attached to the clamping plate 42, a sleeve 43 is fixedly connected to one end of the rotating arm 2, the inner portion of the sleeve 43 is hollow, a third spring 44 is fixedly connected to the inner wall of the sleeve 43, a sliding rod 45 is fixedly connected to one end of the third spring 44, far away from the sleeve 43, the sliding rod 45 is connected with the sleeve 43 in a sliding mode, the through hole 46 is formed in the short arm end of the clamping plate 42, the through hole 46 in the clamping plate 42 and the sliding rod 45 are located on the same straight line, the sliding rod 45 in the sleeve 43 is loosened at the moment, the sliding rod 45 is rebounded to the original position through the third spring 44, the sliding rod 45 penetrates through the through hole 46 in the surface of the clamping plate 42, the clamping plate 42 is fixed, the anti-collision cushion is fixed through the clamping plate 42, and the size of the through hole 46 is matched with the size of the sliding rod 45.

The effect that its whole protector 4 reaches is, through setting up protector 4, through pulling splint 42, make splint 42 to the direction removal of keeping away from rotor arm 2, at this moment, pack into the crashproof pad between splint 42 and rotor arm 2, extrude slide bar 45 in the cask 43 this moment, push splint 42 back to the normal position again, make through-hole 46 and slide bar 45 on the splint 42 be in same straight line, the slide bar 45 in the cask 43 is loosened to this moment, make third spring 44 rebound slide bar 45 to the normal position, thereby make slide bar 45 pass through the through-hole 46 on splint 42 surface, make splint 42 fixed, thereby make splint 42 fix the crashproof pad, thereby can solve traditional mechanical clamping arm and do not have the protection pad, when operating personnel is close to, probably hit the problem of robotic arm.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a mechanical clamping arm for machine-building, includes organism (1) and clamping device (3), its characterized in that: the machine body (1) is a mechanical clamping arm, one end of the machine body (1) is rotatably connected with a rotating arm (2), one end of the rotating arm (2) far away from the machine body (1) is provided with a clamping device (3), the clamping device (3) comprises a rectangular block (301), one end of the rectangular block (301) is fixedly connected with the rotating arm (2), one end of the rectangular block (301) far away from the rotating arm (2) is provided with a sliding groove (302), the inner wall of the sliding chute (302) is connected with two sliding plates (303) in a sliding way, the two sliding plates (303) are symmetrically distributed by the central axis of the sliding chute (302), the telescopic rods (304) are welded at the ends of the two sliding plates (303) close to each other, one end of the telescopic rod (304) far away from the sliding plate (303) is fixedly connected with a clamping arm (305), the clamping arm (305) is C-shaped, and the telescopic rod (304) is sleeved together by two pipes in a sliding manner.

2. A robotic gripper arm for use in the manufacture of machinery according to claim 1, further comprising: a second spring (311) is arranged in the telescopic rod (304), and two ends of the second spring (311) are fixedly connected with the two pipes respectively.

3. A robotic gripper arm for use in the manufacture of machinery according to claim 1, further comprising: the side walls of the two clamping arms (305) are respectively fixedly connected with a clamping block (307) and a connecting rod (306), a hole is formed in the surface of the clamping block (307) and penetrates through the clamping block (307), the connecting rod (306) is L-shaped, the long arm end of the connecting rod (306) is rotatably connected with two limiting blocks (309), and the two limiting blocks (309) are symmetrically distributed with the central axis of the connecting rod (306).

4. A robotic gripper arm for use in the manufacture of machinery according to claim 3, wherein: the connecting rod (306) long arm end's both sides have all been seted up standing groove (308), the inner wall of standing groove (308) rotates and is connected with stopper (309), stopper (309) are the slope form, the one end fixedly connected with first spring (310) of stopper (309), the other end and the standing groove (308) fixed connection of first spring (310).

5. A robotic gripper arm for use in the manufacture of machinery according to claim 1, further comprising: one end of rotor arm (2) is equipped with protector (4), protector (4) include eight sliding blocks (41), and two liang of a set of eight sliding blocks (41), the one end and rotor arm (2) fixed connection of sliding block (41), sliding block (41) are "U" font, the inner wall sliding connection of sliding block (41) has splint (42), splint (42) are "U" font, the surface cover of rotor arm (2) has the crash pad, the crash pad is kept away from the one end and splint (42) of rotor arm (2) and is laminated mutually.

6. A robot gripping arm for machine building according to claim 5, characterized in that: one end fixedly connected with fat bucket (43) of rotor arm (2), the inside of fat bucket (43) is hollow, the inner wall fixedly connected with third spring (44) of fat bucket (43), one end fixedly connected with slide bar (45) of fat bucket (43) are kept away from in third spring (44), slide bar (45) and fat bucket (43) sliding connection, through-hole (46) have been seted up to the short arm end of splint (42), the size of through-hole (46) and the size phase-match of slide bar (45).