CN217414057U - Self-adaptive clamping jaw structure - Google Patents

Abstract

The utility model discloses a self-adaptation clamping jaw structure, including clamping jaw cylinder finger, clamping jaw cylinder finger is gone up and is equipped with the self-adaptation clamp splice to blank one side, and the self-adaptation clamp splice is connected through rotation of axes with clamping jaw cylinder finger, and the self-adaptation clamp splice be equipped with towards blank one side with blank surface complex contact surface. The utility model discloses when centre gripping blank state, clamping jaw cylinder finger removes, and self-adaptation clamp splice contact blank's clamping face makes the self-adaptation clamp splice use the rotation axis as axle autogiration and laminate completely, plays the effect that increases area of contact (become the face contact by line contact) to reach the clamp of blank state and press from both sides tightly, and avoid the three injuries of machined surface. The utility model discloses an use and to avoid destroying machined surface to can be suitable for the clamping jaw of drawing die face and face of cylinder around the processing, can improve the reliability and the suitability that snatch when the automatic work piece of going up and down of robot.

Description

Self-adaptive clamping jaw structure

Technical Field

The utility model relates to a blank centre gripping technical field, concretely relates to self-adaptation clamping jaw structure.

Background

The mesh is signed and is used three-jaw cylinder installation area spike tooth finger to centre gripping blank to carry out automatic lathe processing from top to bottom more, and the contact of clamping jaw cylinder finger and blank is line contact, can leave the tooth trace on the blank surface to because of line contact's area of contact is less, has the product phenomenon that drops.

The invention patent of publication No. CN107932549A discloses a self-adaptive under-actuated steering three-finger robot clamping jaw, and the invention patent of publication No. CN113799162A discloses a robot grabbing paw facing to a special-shaped object.

The utility model discloses a utility model patent of publication No. CN216180639U discloses a cam flexible manipulator device that is general in multistation system, and the clamping jaw is made by flexible material, utilizes elastic deformation stress clamping material, has good adaptability. The use of flexible materials presents the problem of an untightened grip.

The patent of invention of publication No. CN113954117A discloses an adaptive gripper based on van der waals force and friction force, in which a plurality of dry adhesion components can be angularly adjusted according to the irregular clamping surface of the member to be clamped, so that the adhesion pad of each dry adhesion component can be completely adhered to the clamping surface of the member to be clamped, thereby achieving the purpose of stable clamping. The technical scheme has the problem of complex structure.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the problem among the prior art, provide a self-adaptation clamping jaw structure.

In order to solve the technical problem, the utility model adopts the following technical scheme:

the utility model provides a self-adaptation clamping jaw structure, includes that clamping jaw cylinder indicates, clamping jaw cylinder indicates to be equipped with the self-adaptation clamp splice towards blank one side, and the self-adaptation clamp splice is connected through the rotation of rotation axis with clamping jaw cylinder finger, and the self-adaptation clamp splice towards blank one side be equipped with blank surface complex contact surface.

Furthermore, the clamping jaw cylinder fingers are vertically arranged, the rotating shaft is a round pin which is horizontally arranged on the clamping jaw cylinder fingers, a horizontal mounting hole is formed in the self-adaptive clamping block, and the self-adaptive clamping block is mounted on the round pin through the mounting hole and is in running fit with the round pin.

Furthermore, the end part of the round pin is provided with a clamp spring for fixing.

Furthermore, the clamping surface of the blank is a drawing surface or a cylindrical surface, and the contact surface of the self-adaptive clamping block is a cylindrical cambered surface matched with the cylindrical surface or a cambered surface with an inclination matched with the drawing surface.

Furthermore, the self-adaptive clamping block is of a horizontally-arranged convex structure, a connecting part of the self-adaptive clamping block and the rotating shaft is arranged at the small end, and the fingers of the clamping jaw air cylinder are provided with avoidance grooves matched with the small end; the contact surface of the self-adaptive clamping block is arranged at the large end.

Furthermore, the clamping jaw air cylinder fingers are three, and the three clamping jaw air cylinder fingers are arranged on the clamping jaw air cylinder.

The utility model has the advantages that:

the utility model discloses when centre gripping blank state, clamping jaw cylinder finger removes, and self-adaptation clamp splice contact blank's clamping face makes the self-adaptation clamp splice use the rotation axis as axle autogiration and laminate completely, plays the effect that increases area of contact (become the face contact by line contact) to reach the clamp of blank state and press from both sides tightly, and avoid the three injuries of machined surface.

The utility model discloses an use and to avoid destroying machined surface to can be suitable for the clamping jaw of drawing die face and face of cylinder around the processing, can improve the reliability and the suitability that snatch when the automatic work piece of going up and down of robot.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a bottom view of FIG. 1;

FIG. 3 is a front view of FIG. 1;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

fig. 5 is a schematic view of the present invention applied to a pulling module.

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

The first embodiment is as follows:

as shown in fig. 1 to 4, the present embodiment provides an adaptive clamping jaw structure, which includes a clamping jaw cylinder 4 and three clamping jaw cylinder fingers 3 mounted on the clamping jaw cylinder 4.

In this embodiment, the gripper cylinder fingers are vertically arranged, blank 1 is vertical cylindric (the product specification of this example is 47mm in inside diameter, high 91 mm), and its inner wall also is the face of cylinder, and three gripper cylinder fingers 3 intermediate cavities of position blank 1, can press from both sides tight blank when gripper cylinder fingers outwards remove.

And a self-adaptive clamping block 2 is arranged on one side, facing the blank 1, of each clamping jaw cylinder finger 3, the self-adaptive clamping blocks 2 are rotatably connected with the clamping jaw cylinder fingers 3 through rotating shafts, and a contact surface matched with the surface of the blank is arranged on one side, facing the blank 1, of each self-adaptive clamping block 2.

The installation mode of the self-adaptive clamping block 2 in the embodiment is as follows:

the rotation axis is round pin 5 of horizontal installation on the clamping jaw cylinder finger, and 5 tip on the round pin are equipped with jump ring 6 and fix. The self-adaptive clamping block 2 is of a horizontally-arranged convex structure, a horizontal mounting hole is formed in the small end of the self-adaptive clamping block, and the self-adaptive clamping block 2 is mounted on the round pin 5 through the mounting hole and is in running fit with the round pin. Meanwhile, the avoidance groove matched with the small end is formed in the clamping jaw cylinder finger 3, and vertical rotation of the self-adaptive clamping block is guaranteed.

The contact surface of the adaptive clamping block 2 is arranged at the big end. In this embodiment, the contact surface is a cylindrical arc surface that is matched with the cylindrical surface of the inner wall of the blank 1.

The utility model discloses when centre gripping blank state, clamping jaw cylinder finger outwards removes simultaneously, and 1 inner wall of self-adaptation clamp splice 2 contact blank makes self-adaptation clamp splice 2 use round pin 5 to laminate completely as axle autogiration, plays the effect that increases area of contact (become the face contact by line contact) to reach the clamp of blank state and press from both sides tightly, and avoid the three injuries of machined surface.

Example two:

as shown in fig. 5, the adaptive clamping jaw structure of the present embodiment is suitable for loading and unloading clamping operations before and after the mold pulling processing. The inner wall of the pulling part blank is provided with a slope which is a pulling surface. Therefore, the contact surface of the self-adaptive clamping block 2 is a cambered surface with inclination matched with the drawing surface of the inner wall of the blank 1.

When the inner wall is subjected to drawing after machining, the reliable clamping state can be achieved through the principle, and three damages to the machined surface are avoided. Therefore, the embodiment can be suitable for the loading and unloading clamping operation before and after the module pulling processing.

The utility model discloses an use and to avoid destroying machined surface, the clamping jaw of drawing die face and face of cylinder around being suitable for processing can improve the reliability and the suitability that snatch when the automatic work piece of going up and down of robot.

The above embodiments are only used for illustrating but not limiting the technical solutions of the present invention, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: the present invention may be modified or substituted with equivalents without departing from the spirit and scope of the invention, which should be construed as being limited only by the claims.

If the terms "first," "second," etc. are used herein to define parts, those skilled in the art will recognize that: the use of "first" and "second" is merely for convenience in describing the invention and to simplify the description, and the words are not intended to have a special meaning unless otherwise stated.

In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.

Claims (6)

1. The utility model provides a self-adaptation clamping jaw structure, includes clamping jaw cylinder finger, its characterized in that: the self-adaptive clamping block is arranged on one side, facing the blank, of the finger of the clamping jaw air cylinder, is rotatably connected with the finger of the clamping jaw air cylinder through a rotating shaft, and a contact surface matched with the surface of the blank is arranged on one side, facing the blank, of the self-adaptive clamping block.

2. An adaptive jaw structure according to claim 1, wherein: the clamping jaw air cylinder fingers are vertically arranged, the rotating shaft is a round pin which is horizontally arranged on the clamping jaw air cylinder fingers, a horizontal mounting hole is formed in the self-adaptive clamping block, and the self-adaptive clamping block is arranged on the round pin through the mounting hole and is in running fit with the round pin.

3. The adaptive jaw structure of claim 2, wherein: the end part of the round pin is provided with a clamp spring for fixing.

4. The adaptive jaw structure of claim 1, wherein: the clamping surface of the blank is a drawing surface or a cylindrical surface, and the contact surface of the self-adaptive clamping block is a cylindrical cambered surface matched with the cylindrical surface or a cambered surface with inclination matched with the drawing surface.

5. An adaptive jaw structure according to any one of claims 1-4, wherein: the self-adaptive clamping block is of a horizontally-arranged convex structure, a connecting part of the self-adaptive clamping block and the rotating shaft is arranged at a small end, and the fingers of the clamping jaw air cylinder are provided with avoidance grooves matched with the small end; the contact surface of the self-adaptive clamping block is arranged at the large end.

6. The adaptive jaw structure of claim 5, wherein: the clamping jaw air cylinder has three fingers, and three clamping jaw air cylinder fingers are installed on the clamping jaw air cylinder.

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