CN218988070U - Snatch structure - Google Patents

Abstract

The utility model relates to a grabbing structure, which is characterized in that: the device comprises a driving cylinder, a guide cylinder body, a grapple seat and a grapple unit; the guide cylinder body is arranged, the grapple unit moves back and forth along the inner wall of the guide cylinder body along with the grapple seat under the drive of the drive cylinder, the grapple unit is pushed by the spring to be pressed on the inner wall of the guide cylinder body, and when the vertical hook section of the grapple unit is positioned in the guide cylinder body, the bottom end of the grapple unit is in a closed state; when the inclined end of the grapple unit is driven to the end face of the guide cylinder body, the bottom end of the grapple unit is gradually opened to form an opening state; then the cylinder is driven to retract the grapple unit, and the end part of the grapple unit is gradually tightened to form grabbing; the grabbing structure is low in cost, simple in structure, good in flexibility, high in safety, strong in environment adaptability and suitable for popularization and use.

Description

Snatch structure

Technical Field

The utility model relates to the technical field of workpiece grabbing, in particular to a grabbing structure.

Background

In the field of industrial automation, the robot arm end gripping action is mainly performed by a rigid robot gripper. However, the rigid mechanical gripper is generally formed by connecting rigid connecting rods through rotary joints, and is driven by rigid devices such as a hydraulic cylinder and a motor, and each connecting rod realizes one degree of freedom, but has the advantages of high cost, complex structure, poor flexibility, low safety and weak environment adaptability.

Disclosure of Invention

The utility model aims to solve the technical problems of high cost, complex structure, poor flexibility, low safety and weak environment adaptability of a general grabbing structure when grabbing workpieces.

In order to solve the technical problems, the technical scheme of the utility model is as follows: the grabbing structure is characterized in that: the device comprises a driving cylinder, a guide cylinder body, a grapple seat and a grapple unit;

the driving cylinder is arranged along the vertical direction, the output end face of the driving cylinder is fixedly connected to one end of the guide cylinder body, and the driving rod of the driving cylinder extends into the guide cylinder body along the vertical direction; a connecting screw rod is arranged at the end part of the driving rod of the driving cylinder along the vertical direction;

the bottom end opening of the guide cylinder body is provided with a cylindrical grapple seat, and a threaded hole matched with a screw rod at the end part of a driving rod of the driving cylinder is formed in the center of the grapple seat along the vertical direction; the grapple seat is arranged on the screw rod, a plurality of first counter bores are formed in the circumferential direction of the side edge, close to the top end, of the grapple seat, and a plurality of hinge shafts are arranged in the circumferential direction of the top end of the grapple seat;

the grapple units comprise vertical sections, inclined sections and vertical hook sections; the top end of the vertical section of the grapple unit is provided with a hinge hole; the top end of the vertical section of the grapple unit is pivoted on a hinge shaft on the grapple seat; a second counter bore is arranged at the position of the inner side of the vertical section of the grapple unit, which corresponds to the first counter bore in height, and a spring is filled between the first counter bore and the second counter bore; the inclined section of the grapple unit is arranged in an outward inclined manner, and a clamping hook is arranged at the bottom end of the vertical hook section of the grapple unit; the grapple unit moves back and forth along the inner wall of the guide cylinder along with the grapple seat driven by the driving cylinder, and is pushed by the spring to be pressed on the inner wall of the guide cylinder.

Further, the top end of the guide cylinder body is provided with a flange plate, and the flange plate is connected with the output end face of the driving cylinder through bolts.

The utility model has the advantages that:

1) According to the utility model, the guide cylinder body is arranged, the grapple unit moves back and forth along the inner wall of the guide cylinder body along with the grapple seat under the drive of the driving cylinder, the grapple unit is pushed by the spring to be pressed on the inner wall of the guide cylinder body, and when the vertical hook section of the grapple unit is positioned in the guide cylinder body, the bottom end of the grapple unit is in a closed state; when the inclined end of the grapple unit is driven to the end face of the guide cylinder body, the bottom end of the grapple unit is gradually opened to form an opening state; then the cylinder is driven to retract the grapple unit, and the end part of the grapple unit is gradually tightened to form grabbing; the grabbing structure is low in cost, simple in structure, good in flexibility, high in safety, strong in environment adaptability and suitable for popularization and use.

Drawings

The utility model will be described in further detail with reference to the drawings and the detailed description.

Fig. 1 is a schematic diagram of a grabbing structure according to the present utility model.

Fig. 2 is another state diagram of a grasping structure according to the utility model.

Fig. 3 is a view showing an opening state of a grapple unit of a grabbing structure according to the present utility model.

Fig. 4 is a top view of a grapple base of a grabbing structure according to the present utility model.

Description of the embodiments

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

A gripping structure as shown in fig. 1 to 4 includes a driving cylinder 1, a guide cylinder 2, a grapple base 3, and a grapple unit 4.

The driving cylinder 1 is arranged along the vertical direction, the output end face of the driving cylinder 1 is fixedly connected to one end of the guide cylinder body 2, and a driving rod of the driving cylinder 1 extends into the guide cylinder body 2 along the vertical direction; the driving rod end of the driving cylinder 1 is provided with a connecting screw 11 in the vertical direction.

The bottom end opening of the guide cylinder body 2 is provided with a grapple seat 3 in a cylindrical structure, and a threaded hole matched with a screw 11 at the end part of a driving rod of the driving cylinder 1 is arranged at the center of the grapple seat 3 along the vertical direction; the grapple seat 3 is installed on the screw rod, and the side circumference that is close to the top on the grapple seat 3 is provided with a plurality of first counter bores, and the top circumference of grapple seat 3 is provided with a plurality of articulated shafts.

The grapple units 4 are provided with a plurality of grapple units 4, and each grapple unit 4 comprises a vertical section, an inclined section and a vertical hook section; the top end of the vertical section of the grapple unit 4 is provided with a hinge hole; the top end of the vertical section of the grapple unit 4 is pivoted on a hinge shaft on the grapple seat; a second counter bore is arranged at the position of the inner side of the vertical section of the grapple unit 4, which corresponds to the first counter bore in height, and a spring is filled between the first counter bore and the second counter bore; the inclined section of the grapple unit 4 is arranged in an outward inclined way, and a clamping hook is arranged at the bottom end of the vertical hook section of the grapple unit 4; the grapple unit 4 moves back and forth along the inner wall of the guide cylinder 2 along with the grapple seat 3 driven by the driving cylinder 1, and the grapple unit 4 is pushed by a spring to be pressed on the inner wall of the guide cylinder 2.

The top end of the guide cylinder body 2 is provided with a flange plate which is connected with the output end face of the driving cylinder 1 through bolts.

The working principle of the utility model is as follows: the guide cylinder body is arranged, the grapple unit moves back and forth along the inner wall of the guide cylinder body along with the grapple seat under the drive of the drive cylinder, the grapple unit is pushed by the spring to be pressed on the inner wall of the guide cylinder body, and when the vertical hook section of the grapple unit is positioned in the guide cylinder body, the bottom end of the grapple unit is in a closed state; when the inclined end of the grapple unit is driven to the end face of the guide cylinder body, the bottom end of the grapple unit is gradually opened to form an opening state; then the cylinder is driven to retract the grapple unit, and the end part of the grapple unit is gradually tightened to form grabbing; the grabbing structure is low in cost, simple in structure, good in flexibility, high in safety, strong in environment adaptability and suitable for popularization and use.

It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims (2)

1. A snatch structure, its characterized in that: the device comprises a driving cylinder, a guide cylinder body, a grapple seat and a grapple unit;

the driving cylinder is arranged along the vertical direction, the output end face of the driving cylinder is fixedly connected to one end of the guide cylinder body, and the driving rod of the driving cylinder extends into the guide cylinder body along the vertical direction; a connecting screw rod is arranged at the end part of the driving rod of the driving cylinder along the vertical direction;

the bottom end opening of the guide cylinder body is provided with a cylindrical grapple seat, and a threaded hole matched with a screw rod at the end part of a driving rod of the driving cylinder is formed in the center of the grapple seat along the vertical direction; the grapple seat is arranged on the screw rod, a plurality of first counter bores are formed in the circumferential direction of the side edge, close to the top end, of the grapple seat, and a plurality of hinge shafts are arranged in the circumferential direction of the top end of the grapple seat;

the grapple units comprise vertical sections, inclined sections and vertical hook sections; the top end of the vertical section of the grapple unit is provided with a hinge hole; the top end of the vertical section of the grapple unit is pivoted on a hinge shaft on the grapple seat; a second counter bore is arranged at the position of the inner side of the vertical section of the grapple unit, which corresponds to the first counter bore in height, and a spring is filled between the first counter bore and the second counter bore; the inclined section of the grapple unit is arranged in an outward inclined manner, and a clamping hook is arranged at the bottom end of the vertical hook section of the grapple unit; the grapple unit moves back and forth along the inner wall of the guide cylinder along with the grapple seat driven by the driving cylinder, and is pushed by the spring to be pressed on the inner wall of the guide cylinder.

2. A gripping structure according to claim 1, characterized in that: the top end of the guide cylinder body is provided with a flange plate, and the flange plate is connected with the output end face of the driving cylinder through bolts.

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