CN211102880U

CN211102880U - Multi-station hydraulic clamp

Info

Publication number: CN211102880U
Application number: CN201922037133.7U
Authority: CN
Inventors: 陈抗; 王欢
Original assignee: Shenzhen Temet Instrument Equipment Co ltd
Current assignee: Shenzhen Temet Instrument Equipment Co ltd
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2020-07-28
Anticipated expiration: 2029-11-22

Abstract

The utility model discloses a multistation hydraulically operated fixture, including urceolus, hydraulic cylinder and clamping device, clamping device sets up inside the urceolus, hydraulic cylinder's piston rod passes through the connecting piece and is connected with clamping device, clamping device includes inner tube and the more than clamping bar, all be equipped with the gap between clamping bar and the clamping bar, the equal welded fastening of lower extreme of clamping bar has the spring, the equal welded fastening of spring lower extreme has the fixing base, all be equipped with a ball groove on the bottom surface of fixing base, the equal movable mounting in ball inslot portion has the spheroid, some of spheroid all extends to the external world along the opening in ball groove, and all offset with the bottom surface of inner tube, it is equipped with the more than opening to encircle the terminal surface round on the terminal surface of inner tube upper. The utility model discloses simple structure, a plurality of work pieces of centre gripping in the clamping device, and the shape of every work piece can all be different to great increase the practicality, and easy operation need not to carry out the change of anchor clamps, great increase efficiency.

Description

Multi-station hydraulic clamp

Technical Field

The utility model relates to an anchor clamps technical field, concretely relates to multistation hydraulically operated fixture.

Background

The clamp is a technological device for clamping workpieces, is widely applied to the technical processes of cutting, drilling, heat treatment, assembly, welding, detection and the like in the mechanical manufacturing process, directly influences the processing precision, the labor productivity, the manufacturing cost of products and the like, and plays an important role in product design and manufacture and production technology preparation of enterprises. At present, a clamp can only clamp the same workpiece, so that when a plurality of workpieces are required to be clamped, a plurality of clamps are required to be arranged, the cost and the structure are complex, meanwhile, the clamp can only clamp one workpiece, if a clamping opening is a circular clamp, the clamp can only clamp a circular tool, once the workpiece is replaced, the clamp needs to be replaced, the efficiency is influenced, and the cost is increased.

Disclosure of Invention

The utility model aims to solve the technical problem that a multistation hydraulically operated fixture is provided to solve the problem that proposes in the above-mentioned background art.

The utility model discloses a realize through following technical scheme: the utility model provides a multistation hydraulically operated fixture, including the urceolus, hydraulic cylinder and clamping device, clamping device sets up inside the urceolus, hydraulic cylinder installs in the inside of urceolus, hydraulic cylinder's piston rod passes through the connecting piece and is connected with clamping device, clamping device includes inner tube and more than one clamping bar, more than one clamping bar evenly distributed is inside the barrel, all be equipped with the gap between clamping bar and the clamping bar, the equal welded fastening of lower extreme of clamping bar has the spring, the equal welded fastening of spring lower extreme has the fixing base, all be equipped with a ball groove on the bottom surface of fixing base, the equal movable mounting in ball inslot portion has the spheroid, the opening that spheroid some all is along the ball groove extends to the external world, and all offset with the bottom surface of inner tube, it is equipped with the opening that is used for pressing from both.

As preferred technical scheme, the connecting piece includes fixed cover, the screw rod, rotatory piece and locating piece, the inside location chamber that forms a circular structure of rotatory piece, be equipped with one on the bottom surface of rotatory piece with the through-hole of location chamber intercommunication, the diameter of through-hole is less than the diameter in location chamber, locating piece movable mounting is in location chamber, locating piece and location chamber all are the setting of circular structure, piston rod one end on the piston rod passes the through-hole and extends to in the location chamber, and with locating piece welded fastening, screw rod welded fastening is in rotatory piece upper end, fixed cover welded fastening is on the bottom surface of inner tube, and be equipped with the screw thread on the internal face of fixed cover, screw rod one end inserts inside fixed cover, and be connected.

As the preferred technical scheme, the inner cylinder and the outer cylinder are both arranged in a conical structure and are matched with each other.

As a preferable technical scheme, more than one air hole is arranged on the outer wall surface of the outer cylinder.

The utility model has the advantages that: the utility model discloses simple structure, a plurality of work pieces of centre gripping in the clamping device, and the shape of every work piece can all be different to great increase the practicality, and easy operation need not to carry out the change of anchor clamps, great increase efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

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

FIG. 2 is a partial cross-sectional view taken at A-A of FIG. 1;

fig. 3 is a partially enlarged view of fig. 2 at B.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected" and "disposed" are to be construed broadly, and may for example be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, fig. 2 and fig. 3, the multi-station hydraulic clamp of the present invention comprises an outer cylinder 1, a hydraulic cylinder 9 and a clamping device, the clamping device is arranged inside the outer barrel 1, the hydraulic oil cylinder 9 is arranged inside the outer barrel 1, a piston rod of the hydraulic oil cylinder 9 is connected with the clamping device through a connecting piece, the clamping device comprises an inner barrel 2 and more than one clamping rod 4, the more than one clamping rod 4 is uniformly distributed inside the barrel 2, gaps are arranged between the clamping rods 4 and the clamping rods 4, springs 7 are welded and fixed at the lower ends of the clamping rods 4, fixing seats 8 are welded and fixed at the lower ends of the springs 7, a ball groove is arranged on the bottom surface of each fixing seat 8, balls 6 are movably arranged inside the ball groove, one part of each ball 6 extends to the outside along the opening of the ball groove, and all prop against the bottom surface of the inner cylinder 2, more than one opening 3 for clamping or loosening the workpiece is arranged on the end surface of the upper end of the inner cylinder 2 around the end surface in a circle.

In the embodiment, the connecting piece comprises a fixed sleeve 11, a screw 12, a rotating block 13 and a positioning block 16, a positioning cavity 14 with a circular structure is formed inside the rotating block 13, a through hole 15 communicated with the positioning cavity 14 is formed on the bottom surface of the rotating block 13, the diameter of the through hole 15 is smaller than that of the positioning cavity 14, the positioning block 16 is movably arranged in the positioning cavity 14, the positioning block 16 and the positioning cavity 14 are both arranged in a circular structure, one end of a piston rod on the piston rod 9 penetrates through the through hole 15 to extend into the positioning cavity 14 and is fixedly welded with the positioning block 16, the screw 12 is fixedly welded at the upper end of the rotating block 13, the fixed sleeve 11 is fixedly welded on the bottom surface of the inner cylinder 2, threads are arranged on the inner wall surface of the fixed sleeve 11, one end of the screw 12 is inserted into the fixed sleeve 11 and is meshed with the, and after the rotating block is rotated, the screw rod can be screwed out from the fixed sleeve, so that the inner cylinder can be taken down, and each clamping rod can be independently replaced.

In the embodiment, the inner cylinder 2 and the outer cylinder 1 are both arranged in a conical structure, and the inner cylinder 2 is matched with the outer cylinder 1, so that the inner diameter of the inner cylinder can be reduced after the inner cylinder is pressed down.

In this embodiment, the outer wall surface of the outer cylinder 1 is provided with more than one air hole 10, so that the air permeability is increased, the heat dissipation effect is also increased, and the oil pipe on the hydraulic oil cylinder can extend to the outside along the air holes.

The inner cylinder is driven to retract a piston rod of the hydraulic oil cylinder after the completion of the downward movement, the piston rod is moved to the inner cylinder, the inner cylinder can clamp the inner cylinder inwards by taking the opening as a clamping space through the extrusion of the inner wall of the outer cylinder in the downward movement process, the inner diameter of the inner cylinder can be reduced in the clamping process of the inner cylinder, the clamping rod can be extruded by the reduction of the inner diameter, the internal workpieces can be effectively clamped and fixed through the clamping rod clamped inwards, more or less clamping rods which are contacted with the internal workpieces are arranged on each surface of each workpiece, the workpieces in different shapes can be adapted, one clamping device can clamp and fix a plurality of workpieces, and the operation is simple.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the creative work should be covered within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope defined by the claims.

Claims

1. The utility model provides a multistation hydraulically operated fixture which characterized in that: including the urceolus, hydraulic cylinder and clamping device, clamping device sets up inside the urceolus, hydraulic cylinder installs in the inside of urceolus, hydraulic cylinder's piston rod passes through the connecting piece and is connected with clamping device, clamping device includes inner tube and more than one clamping bar, more than one clamping bar evenly distributed is inside the barrel, all be equipped with the gap between clamping bar and the clamping bar, the equal welded fastening of lower extreme of clamping bar has the spring, the equal welded fastening of spring lower extreme has the fixing base, all be equipped with a ball groove on the bottom surface of fixing base, the equal movable mounting in ball inslot portion has the spheroid, a spheroidal partly all extends to the external world along the opening in ball groove, and all offset with the bottom surface of inner tube, it is used for pressing from both sides the opening of tight or unclamping the work piece.

2. The multi-station hydraulic clamp according to claim 1, wherein: the connecting piece is including fixed cover, the screw rod, rotatory piece and locating piece, the inside location chamber that forms a circular structure of rotatory piece, be equipped with one on the bottom surface of rotatory piece with the through-hole of location chamber intercommunication, the diameter of through-hole is less than the diameter in location chamber, locating piece movable mounting is in location chamber, locating piece and location chamber all are the setting of circular structure, piston rod one end on the piston rod passes the through-hole and extends to in the location chamber, and with locating piece welded fastening, screw rod welded fastening is in rotatory piece upper end, fixed cover welded fastening is on the bottom surface of inner tube, and be equipped with the screw thread on the internal face of fixed cover, inside fixed cover is inserted to screw rod one end.

3. The multi-station hydraulic clamp according to claim 1, wherein: the inner cylinder and the outer cylinder are both arranged in a conical structure and are matched with each other.

4. The multi-station hydraulic clamp according to claim 1, wherein: more than one air hole is arranged on the outer wall surface of the outer cylinder.