CN221232595U - Pressing mechanism for preventing manipulator from shaking - Google Patents

Abstract

The utility model relates to a compressing mechanism capable of preventing a manipulator from shaking, which comprises a compressing base and a compressing plate, wherein the compressing plate is arranged on the compressing base. The compressing mechanism for preventing the manipulator from shaking is simple in structure, convenient to assemble and install, and capable of preventing the manipulator device from shaking in the working process.

Description

Pressing mechanism for preventing manipulator from shaking

Technical Field

The utility model relates to a compressing mechanism, in particular to a compressing mechanism capable of preventing a manipulator from shaking.

Background

A manipulator is an automatic operating device that mimics certain motion functions of a human hand and arm for grasping, handling objects or operating tools in a fixed program.

Chinese patent No. 202011609708.9 discloses a pressing mechanism, a manipulator and an automated production line, wherein the disclosed pressing mechanism presses or releases a first part to be pressed and a second part to be pressed, and the pressing mechanism comprises: and (3) compacting the assembly: the first pressing piece and the second pressing piece are used for pressing the second piece to be pressed; the shaft core is movably arranged on the compression assembly in a penetrating way along the axis of the shaft core; the first pressing piece is arranged between the second pressing piece and the annular boss of the shaft core, and the first piece to be pressed is arranged between the annular boss and the first pressing piece; a rotating member: the shaft core is sleeved with one side, far away from the annular boss, of the compression assembly, and the distance between the end face, close to the compression assembly, of the compression assembly and the compression assembly is gradually reduced along the circumferential direction of the shaft core; the support column between the pressing component and the rotating component is fixed relative to the pressing component and is abutted against the end face; the rotating component is rotated to enable the support column to be in contact with the position with the larger or smaller distance from the pressing component on the end face so as to enable the annular boss to be close to or far away from the pressing component, and therefore the problem that a clamp on an automatic production line is difficult to switch rapidly in the prior art is solved.

However, the prior art has the following problems: the compressing mechanism is relatively complex, the structure is compact, the installation and the replacement of parts are relatively inconvenient, and the operation time of compressing and releasing processes is relatively long and inconvenient.

Disclosure of Invention

In order to solve the problems, the utility model provides the pressing mechanism for preventing the shaking of the mechanical hand, which has the advantages of simple structure, convenient installation and simple operation.

In order to achieve the above purpose, the compressing mechanism for preventing the manipulator from shaking comprises a compressing base and a compressing plate, wherein the compressing plate is arranged on the compressing base, and is characterized in that a first through hole is formed in the compressing base, a second through hole corresponding to the first through hole is formed in the compressing plate, a pull rod penetrates through the space between the first through hole and the second through hole, a bottom plate is fixedly arranged at one end part of the pull rod, which is positioned in the first through hole, a step with the diameter smaller than that of the first through hole is arranged at the upper opening end of the first through hole, a pressure spring is sleeved outside the section of the pull rod between the bottom plate and the step in the first through hole, and the end part of the pull rod, which extends out of the compressing plate, is connected with a compressing cam capable of driving the pull rod to move up and down to compress the compressing plate through rotation of the compressing cam.

During operation, the two ends of the pressure spring are respectively propped against the step and the bottom plate, the step is matched with the bottom plate to provide an installation position for the pressure spring, and the compression mechanism can transmit restoring force to the compression base when the pressure spring contracts under the compression state, so that the compression base has an upward movement trend, and the compression plate is simultaneously acted by the compression cam and the compression base and is fixed at the working position.

Preferably, the upper end of the compression cam is in a convex arc shape, the lower end of the compression cam is in a plane shape, the compression cam is connected with the end part of the pull rod extending out of the compression plate through a rotating shaft of the compression cam, the distance between the shaft core of the rotating shaft and the compression plate is smaller than the edge distance between the shaft core of the rotating shaft and the convex arc-shaped contour line of the compression cam, and the compression cam is provided with a compression cam handle.

Preferably, the pressing base is provided with a fixing groove at a position far away from the pressing working side. The setting of fixed recess makes and compresses tightly the base and can fixed mounting on outside part, can not take place to rock in the course of the work.

Preferably, the lower surface of the pressing plate is provided with a protrusion on the outer circumference. The protrusion sets up to have certain space between the manipulator device that makes pinch strip and compress tightly base and outside, avoids the contact of each part on a large scale on surface, reduces in the course of the work because of the friction leads to the surface damage between each part.

Preferably, the connection between the pull rod and the bottom plate can be provided with a screwing hole in the bottom plate, a thread is arranged in the screwing hole, a screwing column with a smaller diameter and matched with the screwing hole is arranged at the lower end of the pull rod, and the screwing column is matched with the screwing hole, so that the pull rod is fixed with the bottom plate and can be adjusted in the upper and lower positions, a compression cam arranged on the pull rod can be adjusted in height, and then the interval between the compression cam and the compression plate can be adjusted according to the compression requirement, so that the compression force of the compression plate can be adjusted to a proper size to adapt to the movement of the manipulator device.

In real time, the upper half part of the compression cam handle can be provided with knurls, and the knurls improve the surface roughness of the compression cam handle, so that the compression cam handle cannot slip in the use process.

The compressing mechanism for preventing the manipulator from shaking is simple in structure, convenient to assemble and install, and simple to operate, and can enable the compressing plate to compress the manipulator device only by rotating the compressing cam handle, so that shaking does not occur in the working process of the manipulator device.

Drawings

FIG. 1 is a diagram of the working state of the pressing mechanism for preventing the shaking of the mechanical hand;

FIG. 2 is a non-operating state diagram of the hold-down mechanism of the present utility model for preventing robot shake;

fig. 3 is an enlarged view of the pressing mechanism a of the present utility model for preventing the shake of the manipulator.

Wherein: the clamping base 1, the first through hole 11, the fixing groove 12, the step 13, the clamping plate 2, the second through hole 21, the protrusion 22, the bottom plate 3, the screwing hole 31, the pull rod 4, the screwing column 41, the pressure spring 5, the clamping cam 6, the rotating shaft 7, the cotter pin 71, the clamping cam handle 8 and the manipulator device 9.

Detailed Description

The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.

Example 1

As shown in fig. 1, the pressing mechanism for preventing the shake of the manipulator provided in this embodiment includes a pressing base 1 and a pressing plate 2, the pressing plate 2 is disposed on the pressing base 1, a first through hole 11 disposed in the pressing base 1, a second through hole 21 corresponding to the first through hole 11 is disposed on the pressing plate 2, a pull rod 4 is disposed between the first through hole 11 and the second through hole 21 in a penetrating manner, a bottom plate 3 is fixedly disposed at an end portion of the pull rod 4 located in the first through hole 11, a step 13 with a diameter smaller than that of the first through hole 11 is disposed at an upper opening end of the first through hole 11, a compression spring 5 is sleeved on a section of the pull rod 4 between the bottom plate 3 and the step 13 in the first through hole 11, and an end portion of the pull rod 4 extending out of the pressing plate 2 is connected with a pressing cam 6 capable of driving the pull rod 4 to move up and down to press the pressing plate 2 through rotation of the pressing cam 6.

The upper end of the compression cam 6 provided by the embodiment is in a convex arc shape, the lower end of the compression cam 6 is in a plane shape, the compression cam 6 extends out of the end connection of the compression plate 2 through the rotating shaft 7 and the pull rod 4, the distance between the shaft core of the rotating shaft 7 and the compression plate 2 is smaller than the edge distance between the shaft core of the rotating shaft 7 and the convex arc-shaped contour line of the compression cam 6, and the compression cam 6 is provided with a compression cam handle 8.

When the mechanical arm device 9 needs to be fixed at ordinary times, the pressing cam handle 8 is rotated, the upper end of the pressing cam 6 is in contact with the pressing plate 2, so that the pressing plate 2 is pressed down, one side of the pressing plate 2, which is close to the mechanical arm device 9, is pressed and fixed to the mechanical arm device 9, meanwhile, the distance between the shaft core of the pressing cam 6 rotating mandrel 7 and the pressing plate 2 is shorter than the distance between the pressing cam 6 and the pressing cam 6, the pressing cam 6 can lift the pull rod 4 upwards in a pressing state, so that the bottom plate 3 is driven to move upwards along with the pull rod 4, then the compression spring 5 contracts to provide restoring force for two ends, the pulling force is transmitted to the pull rod 4 to move downwards, so that the pressing cam is driven to lock the pressing plate 2 on the pressing base 1, and the pressing plate 2 is fixed at the pressing working position under the action of the pressing cam 6 and the pressing base 1, so that the pressing and fixing of the mechanical arm device is guaranteed. As shown in fig. 2, when the manipulator device is not required to be fixed, only the pressing cam handle 8 is required to be rotated, so that the pressing cam 6 rotates to a position where the lower end is planar and corresponds to the pressing plate 2, the pressing cam 6 releases the pressing plate 2, the compression spring 5 returns to a free state, and the pressing plate 2 is not located at the working position of the pressing manipulator device.

Here, a step 13 with a diameter smaller than that of the first through hole 11 is formed at the upper opening end of the first through hole 11, a pressure spring 5 is sleeved outside a section of the pull rod 4 between the bottom plate 3 and the step 13 in the first through hole 11, and two ends of the pressure spring 5 respectively prop against the step 13 and the bottom plate 3. Step 13 cooperates with bottom plate 3, provides flexible spacing for pressure spring 5 to make hold-down mechanism under the state of compressing tightly, can transmit restoring force to compressing tightly on base 1 when pressure spring 5 contracts, thereby make compressing tightly board 2 lock on compressing tightly base 1, fix in the working position, and realize the fixed to the manipulator device, make the manipulator device do not take place the phenomenon of shake in the course of the work.

Example 2

In the pressing mechanism for preventing shake of a manipulator described in this embodiment, as shown in fig. 3, a screwing hole 31 is formed in the bottom plate 3, a thread is formed in the screwing hole 31, and a screwing column 41 with a smaller diameter and adapted to the screwing hole 31 is formed at the lower end of the pull rod 4. The screw column 41 is matched with the screw hole 31, so that the pull rod 4 can be adjusted in the vertical position, the height of the compression cam 6 arranged on the pull rod 4 can be adjusted, the interval between the compression cam 6 and the compression plate 2 can be adjusted according to the compression requirement, and the compression force of the compression plate 2 can be adjusted to a proper size so as to adapt to the movement of the manipulator device 9; the pressing base 1 is provided with a fixing groove 12 at the side far away from the pressing working side. The fixing groove 12 is provided to enable the pressing base 1 to be fixedly mounted on an external component without shaking during operation.

Example 3

As shown in fig. 1, the pressing mechanism for preventing the shake of the manipulator provided in this embodiment is that a protrusion 22 is provided on the circumference of the lower surface of the pressing plate 2 near the outer side, and the protrusion is provided to enable a certain gap to exist between the pressing plate 2 and the pressing base 1 and between the pressing plate and the external manipulator device, so as to avoid the contact of the surfaces of all the components in a large area, and reduce the surface damage caused by friction between all the components in the working process; the upper half of the compression cam handle 8 may be provided with knurling. The knurling arrangement improves the surface roughness of the compression cam handle 8, so that the compression cam handle 8 cannot slip in the use process; the fixation of the pivot shaft 7 to the compression cam 6 and the pull rod 4 is achieved by means of a cotter pin 71. The provision of cotter pin 71 allows for easy fixation of the rotating spindle 7 and cotter pin 71 for easy installation and replacement.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (4)

1. The utility model provides a prevent hold-down mechanism of manipulator shake, including compressing tightly base (1) and pressure strip (2), pressure strip (2) are arranged in on compressing tightly base (1), characterized by is compressing tightly first through-hole (11) that are equipped with in base (1), be equipped with on pressure strip (2) with first through-hole (11) corresponding second through-hole (21), run through between first through-hole (11) and second through-hole (21) and be provided with pull rod (4), be located fixed being provided with bottom plate (3) on the tip of first through-hole (11) at pull rod (4), be provided with at the upper mouth end of first through-hole (11) and form step (13) that the diameter is less than first through-hole (11), pull rod (4) position section overcoat in bottom plate (3) in first through-hole (11) and step (13) is equipped with pressure spring (5), the end connection that pull rod (4) stretches out pressure strip (2) has accessible to compress tightly cam (6) and rotate and drive pull rod (4) and compress tightly cam (6) of pressure strip (2).

2. The pressing mechanism for preventing mechanical hand shake according to claim 1, wherein the upper end of the pressing cam (6) is in a convex arc shape, the lower end of the pressing cam is in a plane shape, the pressing cam (6) is connected with the end part of the pull rod (4) extending out of the pressing plate (2) through a rotating shaft (7), the distance between the shaft core of the rotating shaft (7) and the pressing plate (2) is smaller than the edge distance between the shaft core of the rotating shaft (7) and the convex arc-shaped contour line of the pressing cam (6), and the pressing cam handle (8) is arranged on the pressing cam (6).

3. The pressing mechanism for preventing the manipulator shake according to claim 1, wherein the pressing base (1) is provided with a fixing groove (12) away from the pressing working side.

4. The pressing mechanism for preventing shake of a manipulator according to claim 1, wherein the lower surface of the pressing plate (2) is provided with a protrusion (22) on the outer circumference.