CN218664175U - Clamp apparatus - Google Patents

Abstract

The utility model relates to a clamping and carrying tool, which aims to solve the problem that the clamping plate in the existing clamp is installed through a pivot so as to cause uneven stress on a clamped object, and the utility model constructs a clamp which comprises a base main body, two clamping plates arranged on the base main body, a hydraulic oil cylinder, an inter-plate transmission mechanism and a slide rail mechanism; the sliding rail mechanism is used for connecting the two clamping plates with the base main body respectively; the inter-plate transmission mechanism comprises a rotating part and two connecting rods, wherein the rotating part and the two connecting rods are rotatably arranged on the base main body; the first ends of the two connecting rods are hinged with the rotating part, the second ends of the two connecting rods are correspondingly hinged with the two clamping plates, and four hinged points on the two connecting rods are arranged in a Z shape and are symmetrical about the rotating shaft center of the rotating part; two ends of the hydraulic oil cylinder are respectively connected with the base main body and one of the clamping plates. The utility model discloses in through two splint synchronous motion of a hydraulic cylinder drive, simple structure, the operation is reliable. When the object is clamped, the force exerted on the clamped object by the two clamping plates is uniformly distributed, and the clamped object is not easily damaged.

Description

Clamp apparatus

Technical Field

The utility model relates to a centre gripping handling tool, more specifically say, relate to an anchor clamps.

Background

When a brick loading is carried in a brickyard, a forklift truck or a forklift is often used, and when the carrying tool is used for operation, the whole vehicle needs to move, so that the operation efficiency is low.

Chinese patent document CN209973656U (application on 26/03/2020/01/21/2019) discloses a brick carrying clamp for an excavator, which is mounted on a bucket rod of the excavator and used for clamping and stacking bricks for loading or transferring. The anchor clamps that double-layered brick was used are installed on the dipper of excavator to form the articulated equipment who is formed by swing arm, dipper and anchor clamps, and the space removes the degree of freedom greatly, removes in a flexible way, and when removing the fragment of brick in the certain limit, the excavator host computer need not to remove, only need do the gyration action and cooperate the action of equipment self alright realize, improves the operating efficiency greatly.

In the clamps in the above documents, the clamping plates are pivotally connected, and when the hydraulic cylinder pushes the clamping plates to clamp bricks, the clamping plates rotate around the pivot instead of translating. When the brick is clamped, the force applied to the brick by rotating the clamping plate close to the brick is not uniform, and the force applied to the brick at the position far away from the pivot is the largest. Excessive forces on the clamps are carried on the bricks, which can cause the bricks to break.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is that splint lead to being pressed from both sides the uneven problem of atress on the thing through the pivot installation in the current anchor clamps, and provide an anchor clamps for splint are the translation, and the atress is even on the object is pressed from both sides.

The utility model discloses a realize that the technical scheme of its purpose is like: the clamp comprises a base main body, two clamping plates arranged on the base main body, a hydraulic oil cylinder, an inter-plate transmission mechanism and a sliding rail mechanism, wherein the inter-plate transmission mechanism is arranged between the two clamping plates;

the slide rail mechanism is used for connecting the two clamping plates with the base main body respectively so that the two clamping plates move in parallel in a way of facing or being opposite to each other on the base main body;

the inter-plate transmission mechanism comprises a rotating part and two connecting rods, wherein the rotating part and the two connecting rods are rotatably arranged on the base main body; the first ends of the two connecting rods are hinged with the rotating part, the second ends of the two connecting rods are correspondingly hinged with the two clamping plates, and four hinged points on the two connecting rods are arranged in a Z shape and are centrosymmetric about the rotating shaft of the rotating part;

one end of the hydraulic oil cylinder is connected with the base main body through a pin shaft, and the other end of the hydraulic oil cylinder is connected with one clamping plate through a pin shaft.

The utility model discloses in, two splint pass through the inter-plate drive mechanism and connect and keep synchronous phase to each other or move back on the back mutually, and the translation is made to one of them splint of hydraulic cylinder drive to make anchor clamps two splint translation actions when pressing from both sides the article, splint exert and act on by the distribution of the power on pressing from both sides the article comparatively even, are difficult for causing the damage by the article of pressing from both sides.

In the utility model, the base body comprises a connecting base, a rotary base arranged on the connecting base through a rotary support, and a rotary motor arranged on the connecting base and used for driving the rotary base to rotate; the hydraulic oil cylinder, the sliding rail mechanism and the inter-plate transmission mechanism are arranged and installed on the rotary base.

The utility model discloses in the anchor clamps install central rotary joint between connection base and the rotary base, hydraulic cylinder's big chamber and loculus pass through the pipeline with central rotary joint connects.

The utility model discloses in the anchor clamps, correspond every splint slide rail mechanism is in including fixed setting two stand pipes that just are parallel to each other on the rotating base, arrange in two separately in the stand pipe and the tip with splint fixed connection's slide bar.

The utility model discloses in the anchor clamps, it is same to correspond two stand pipes of splint about hydraulic cylinder symmetrical arrangement.

Further, the hydraulic oil cylinder and the rotating shaft of the rotating component are arranged on the central plane of the clamping plate; the hinge point of the connecting rod and the clamping plate is positioned on the central plane of the clamping plate. The structure ensures that the resultant force of stress on the clamping plate is positioned in the central plane when the hydraulic oil cylinder drives the clamping plate to move, the clamping plate does not deflect, and the movement is smooth.

In the utility model discloses in the anchor clamps, the rotating base includes first base plate, second base plate and joint support board, first base plate and second base plate are parallel to each other the interval arrangement, the joint support board is located between first base plate and the second base plate and welds with first base plate and second base plate, slide rail mechanism and hydraulic cylinder arrange in the space between first base plate and the second base plate; the slewing bearing is connected with the first base plate. Further, the rotating part is mounted on the second base plate through a rotating shaft and is arranged on one side of the second base plate, which is back to the first base plate. The rotating member is disc-shaped or rod-shaped.

Compared with the prior art, the utility model discloses in, two splint are connected through a hydraulic cylinder drive and through transmission mechanism between the board and are kept synchronous move in opposite directions or back on the body mutually, and two splint translation actions when pressing from both sides the thing are got, exert the distribution of the power that acts on by pressing from both sides the thing comparatively even, are difficult for causing the damage to by pressing from both sides the thing.

Drawings

Fig. 1 is a schematic structural view of the clamp of the present invention.

Fig. 2 is a schematic structural view of the bottom surface of the clamp of the present invention.

Fig. 3 is a schematic structural view of the top surface of the clamp of the present invention.

Part names and serial numbers in the figure:

the connecting device comprises a connecting base 10, a first connecting pin 11, a second connecting pin 12, a rotary motor 13, a central rotary joint 14, a rotary support 20, a rotary base 30, a first base plate 31, a second base plate 32, a connecting support plate 33, a hydraulic oil cylinder 40, a slide rail mechanism 50, a guide pipe 51, a slide rod 52, a first clamping plate 61, a first support 611, a second clamping plate 62, a second support 621, a rotating component 71, a rotating shaft 711, a first connecting rod 72, a first pin 721, a second pin 722, a second connecting rod 73, a third pin 731 and a fourth pin 732.

Detailed Description

The following description of the embodiments refers to the accompanying drawings.

As shown in fig. 1, the clamp in the embodiment of the present invention includes a base main body, two clamping plates installed on the base main body, a hydraulic cylinder 40, an inter-plate transmission mechanism, and a slide rail mechanism 50.

The base main body includes a connection base 10, a rotation base 30 mounted on the connection base through a rotation support 20, and a rotation motor 13 mounted on the connection base 10 for driving the rotation base 31 to rotate. The connecting base 10 is provided with a first connecting pin shaft 11 and a second connecting pin shaft 12, and the first connecting pin shaft 11 and the second connecting pin shaft 12 can be used for being connected with a mounting carrier of a clamp, such as the front end of a bucket rod of an excavator and a bucket connecting rod on the bucket rod, so that the clamp is mounted on the bucket rod of the excavator. If the clamp is to be mechanically connected to another carrier, a corresponding connection interface can be provided.

The slewing pedestal 30 includes a first pedestal plate 31, a second pedestal plate 32, and a connection support plate 33, the first pedestal plate 31 and the second pedestal plate 32 are arranged in parallel at an interval, the connection support plate 33 is located between the first pedestal plate 31 and the second pedestal plate 32 and welded to the first pedestal plate 31 and the second pedestal plate 32, and the slewing bearing 20 is connected to the first pedestal plate 31.

The clamp plates include a first clamp plate 61 and a second clamp plate 62, and the first clamp plate 61 and the second clamp plate 62 are each connected to the swivel base 30 by a slide rail mechanism.

The slide rail mechanism 50 is disposed in a space between the first base plate 31 and the second base plate 32, and includes a guide tube 51 fixedly provided on the swivel base, and a slide bar 52 disposed in the guide tube 51 and having an end fixedly connected to the corresponding clamp plate. In the present embodiment, the guide tube 51 is fixedly disposed on the second base plate 32 through a rib plate, and in other embodiments, the guide tube 51 may also take other fixing forms, for example, fixed on the first base plate 31.

The slide rail mechanism corresponding to the same splint comprises two sets of guide tubes 51 and a slide rod 52, and the guide tubes 51 are parallel to each other. The number of the guide tubes 51 and the slide rods 52 may be increased as necessary.

The hydraulic cylinder 40 is disposed in a space between the first base plate 31 and the second base plate 32, and has one end connected to the second base plate 31 by a pin and the other end connected to the first clamp plate 61 by a pin. The extension and contraction of the hydraulic cylinder 41 can push the first clamping plate 61 to make translational sliding under the guiding action of the guide pipe 51 and the slide rod 52.

As shown in fig. 3, a central swivel joint 14 is installed between the connection base 10 and the swivel base 30, a sleeve of the central swivel joint 14 is fixedly connected with the connection base 10, a mandrel of the central swivel joint 14 is fixedly connected with a first base plate 31 of the swivel base 30, an oil line interface on the mandrel is connected with a large cavity and a small cavity of the hydraulic cylinder 40 through a pipeline, and an oil line interface on the sleeve is connected with a hydraulic control system on a bearing host machine, such as an excavator host machine, through a pipeline.

The inter-plate transmission mechanism comprises a rotating part 71 and two connecting rods which are rotatably arranged on the base main body; the first ends of the two connecting rods are hinged with the rotating part 71, the second ends of the two connecting rods are correspondingly hinged with the two clamping plates, and the four hinged points on the two connecting rods are arranged in a Z shape and are symmetrical about the center of the rotating shaft of the rotating part.

As shown in fig. 2, in the present embodiment, the rotating member 71 has a disk shape, is rotatably mounted on the second base plate 32 through the rotating shaft 711, and is disposed on the side of the second base plate 32 facing away from the first base plate 31, and the rotating shaft center of the rotating member 71 is point a.

The first end of the first link 72 is hinged to the rotating member 71 through a first pin 721, and the hinge point is point B. The first clamping plate 61 is provided with a first support 611, the second end of the first connecting rod 72 is hinged with the first support 611 through a second pin 722, and the hinge point is point C.

The first end of the second link 73 is hinged to the rotating member 71 through a third pin 731, and the hinge point is point D. A second support 621 is disposed on the second clamping plate 62, and a second end of the second link 73 is hinged to the second support 621 through a fourth pin 762, and the hinge point is point E.

As shown in fig. 2, the hinge points C, B, D, E are arranged in a "Z" shape, the three points B, a, D are on the same straight line, the three points C, a, E are on the same straight line, and the straight line where the three points CAE are located is located in the central plane of the first clamping plate 61 and the second clamping plate 62, the hydraulic cylinder 40 is also arranged on the central plane of the first clamping plate 61 and the second clamping plate 62, and the two guide tubes 51 of the same clamping plate are mirror-symmetrical with respect to the central plane. The structure ensures that the resultant force of stress on the clamping plate is positioned in the central plane when the hydraulic oil cylinder drives the clamping plate to move, the clamping plate does not deflect, and the movement is smooth.

In this embodiment, the rotating member 71 may also be a rod, wherein the middle portion is rotatably connected to the second base plate through a rotating shaft, and the two ends are connected to the two connecting rods through a pin.

In this embodiment, when the hydraulic cylinder extends, the first clamping plate performs translational movement (leftward movement in fig. 2) under the pushing action of the hydraulic cylinder and the guiding action of the slide rail mechanism, the first clamping plate pulls the rotating member to rotate counterclockwise through the first connecting rod, the rotating member pushes the second clamping plate to perform translational movement rightward under the guiding action of the slide rail mechanism through the second connecting rod, and the first clamping plate and the second clamping plate perform synchronous translational movement in a back-to-back manner, so that a clamped object clamped between the first clamping plate and the second clamping plate is released.

When a piston rod of the hydraulic oil cylinder retracts, the first clamping plate moves in a translation mode (moves rightwards in the drawing 2) under the pulling action of the hydraulic oil cylinder and the guiding action of the sliding rail mechanism, the first clamping plate pushes the rotating part to rotate clockwise through the first connecting rod, the rotating part pulls the second clamping plate to move in a translation mode leftwards under the guiding action of the sliding rail mechanism through the second connecting rod, and the first clamping plate and the second clamping plate synchronously translate in the opposite direction, so that clamped objects between the first clamping plate and the second clamping plate are clamped.

In the present invention, the jig is used for stacking rectangular bricks, rectangular cartons, or wooden boxes. When the clamp clamps an object, the two clamping plates are in opposite translation, the action force of the clamping plates on the clamped object is uniformly distributed, and the damage of a local area of the clamped object caused by overlarge stress can not be caused.

The utility model discloses in, through two splint synchronous motion of a hydraulic cylinder drive, drive mechanism simple structure between wherein, the operation is reliable.

Claims (10)

1. A clamp comprises a base main body, two clamping plates arranged on the base main body, a hydraulic oil cylinder, an inter-plate transmission mechanism and a sliding rail mechanism, wherein the inter-plate transmission mechanism is arranged between the two clamping plates;

the slide rail mechanism is used for connecting the two clamping plates with the base main body respectively so that the two clamping plates move in parallel in a way of facing or being opposite to each other on the base main body;

the inter-plate transmission mechanism comprises a rotating part and two connecting rods, wherein the rotating part and the two connecting rods are rotatably arranged on the base main body; first ends of the two connecting rods are hinged with the rotating part, second ends of the two connecting rods are correspondingly hinged with the two clamping plates, and four hinged points on the two connecting rods are arranged in a Z shape and are centrosymmetric about a rotating shaft of the rotating part;

one end of the hydraulic oil cylinder is connected with the base main body through a pin shaft, and the other end of the hydraulic oil cylinder is connected with one clamping plate through a pin shaft.

2. The clamp of claim 1, wherein said base body comprises a connection base, a swivel base mounted on said connection base by a swivel support, a swivel motor mounted on said connection base for driving the swivel base to rotate; the hydraulic oil cylinder, the sliding rail mechanism and the inter-plate transmission mechanism are arranged and installed on the rotary base.

3. The clamp of claim 2, wherein a central swivel joint is mounted between the connection base and the swivel base, and the large cavity and the small cavity of the hydraulic cylinder are connected with the central swivel joint through pipelines.

4. The clamp of claim 2, wherein said slide mechanism corresponding to each of said clamping plates comprises two guide tubes fixedly disposed on said rotating base and parallel to each other, and a slide rod disposed in said two guide tubes and having an end fixedly connected to said clamping plate.

5. A clamp according to claim 4, wherein two guide tubes corresponding to the same clamping plate are symmetrically arranged about said hydraulic ram.

6. A clamp according to claim 5, wherein the axes of rotation of said hydraulic rams and said rotatable members are disposed in a central plane of said clamping plate.

7. The clamp of claim 6 wherein the hinge point of said link to said clamping plate is located in the center plane of said clamping plate.

8. The fixture of any one of claims 4 to 7, wherein said swivel base comprises a first base plate, a second base plate and a connecting support plate, said first base plate and said second base plate being arranged in parallel spaced apart relation to each other, said connecting support plate being located between and welded to said first base plate and said second base plate, said slide mechanism and said hydraulic ram being arranged in a space between said first base plate and said second base plate; the slewing bearing is connected with the first base plate.

9. The chuck of claim 8, wherein said rotating member is mounted to said second base plate by a pivot and is disposed on a side of said second base plate facing away from said first base plate.

10. The clamp of claim 9, wherein said rotating member is in the form of a disk or a rod.

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