CN203091772U

CN203091772U - Adjustable hump hydraulic chuck

Info

Publication number: CN203091772U
Application number: CN 201320108891
Authority: CN
Inventors: 高中服; 林健
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-03-11
Filing date: 2013-03-11
Publication date: 2013-07-31
Anticipated expiration: 2023-03-11

Abstract

The utility model relates to an adjustable hump hydraulic chuck which comprises a main shell body. Two sides of the upper portion of the main shell body extend upwards to form a hump structure which is convex at two sides and concave in the middle. Radial guiding grooves are formed in tops of the convex portions at two sides of the main shell body. Sliding blocks are arranged in the radial guiding grooves. Inclined holes are formed at the bottoms of the sliding blocks. Axial arm of force holes are further formed in the convex portions at two sides of the main shell body. Clamping arms of force are arranged in the axial arm of force holes. Bottoms of the clamping arms of force are connected with a pull mechanism through connection rods. Clamping blocks matched with the inclined holes at the bottoms of the sliding blocks are arranged on tops of the clamping arms of force. Clamping teeth are further arranged on tops of the sliding blocks. A clamping block is fixedly connected at the top of each sliding block through a screw. The bottom of the clamping block is provided with clamping teeth which are meshed with the clamping teeth on the top of the sliding block. The adjustable hump hydraulic chuck is especially suitable for inner hole machining of long-axis pipe fittings, can be freely manufactured to be lengthened by a certain degree within certain length limitation and can meet the technical requirements of a workpiece without a central framed bent. The adjustable hump hydraulic chuck has the advantage of being convenient to use.

Description

Adjustable hump oild chuck

Technical field

The utility model relates to a kind of chuck, specifically is a kind of adjustable hump oild chuck.

Background technology

Existing chuck comprises main casing, the folder arm of force, shrouding, and the described folder arm of force is arranged in the inclined hole of main casing inside, and folder arm of force bottom is connected with the pulling force active module; The pulling force active module is connected with the main casing bottom by the shrouding that its lower end is provided with, pulling force active module bottom is connected with pull bar by lock nut, the tension arm top is fixed with the rest shoe fixed bit, present this structure chuck major axis pipe fitting processing endoporus need be used the fixedly clamping processing of center framed bent, and some workpiece profile is special-shaped, then can't use the fixedly clamping processing of center framed bent.

The utility model content

The purpose of this utility model is to provide a kind of adjustable hump oild chuck, be adapted to major axis pipe fitting processing endoporus especially, this chuck can be made arbitrarily in certain-length and extend certain length, needn't use the center framed bent, all can reach the specification requirement of workpiece, have characteristics easy to use.

For achieving the above object by the following technical solutions:

A kind of adjustable hump oild chuck, comprise main casing, its feature in: the both sides on described main casing top extend upward, formation is the umbilicate hump structure of both sides projection, and the top of main casing both sides lug boss offers the radially-directed groove, is provided with slide block in the radially-directed groove, bottom at slide block has inclined hole, also have axial arm of force hole in the lug boss of main casing both sides, in this axial arm of force hole the folder arm of force is set, folder arm of force bottom is connected with tensile machine by connecting rod; Be provided with the fixture block that the slider bottom inclined hole cooperates at the top of the described folder arm of force; Also be provided with latch in slider top, have a fixture block to be connected in slider top, also be provided with the latch that is meshed with the slider top latch in the bottom of fixture block by screw.

In the middle of main casing, have the through hole that runs through main casing intermediate recess portion and connecting rod.

The both sides on the utility model main casing top extend upward, formation is the umbilicate hump structure of both sides projection, cooperate this hump structure that the axial arm of force hole of the inner employing of main casing is arranged, the fixture block of the folder arm of force by the top promotes slide block and moves, this structure is adapted to major axis pipe fitting processing endoporus especially, and the utility model can be made arbitrarily in certain-length and extend certain length, and needn't adopt the center framed bent, all can reach the specification requirement of workpiece, have characteristics easy to use.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the utility model side portion structure schematic diagram;

Fig. 3 is the structural representation of the utility model lower hollow.

The specific embodiment

As shown in Figure 1, 2, a kind of adjustable hump oild chuck, comprise main casing 1, the both sides on described main casing 1 top extend upward, formation is the umbilicate hump structure of both sides projection, the top of main casing 1 both sides lug boss 11 offers radially-directed groove 12, be provided with slide block 3 in the radially-directed groove 12, have inclined hole 31 in the bottom of slide block 3, in the lug boss 11 of main casing both sides, also have axial arm of force hole 13, the folder arm of force 2 is set in this axial arm of force hole 13, and the folder arm of force 2 bottoms are connected with the hydraulic pressure tensile machine by connecting rod 4; Be provided with the fixture block 21 that slider bottom inclined hole 31 cooperates at the top of the described folder arm of force 2; Also be provided with latch at slide block 3 tops, have a fixture block 5 to be connected in slide block 3 tops, also be provided with the latch that is meshed with the latch on slider top surface in the bottom of fixture block 5 by screw.

Hydraulic pressure tensile machine pulling connecting rod when the utility model uses, the folder arm of force is moved down, the fixture block at folder power wall top is contained in the inclined hole of slide block, and the folder arm of force promotes slide block when moving down and moves to the centre, thereby fixture block is simultaneously along with slide block moves clamping work pieces to the centre; Owing to adopt the latch engagement between fixture block and the slide block, only need unclamp screw between fixture block and the slide block slightly when transferring the fixture block radial position, make the fixture block bottom and the latch of slider top break away from mutually, this moment, fixture block just can be along radially-directed groove adjusting position radially, to adapt to the clamping demand of different size workpiece, the chuck of relative existing structure, adjustment mode of the present utility model is more convenient.

At the workpiece of some length overlength, the utility model has the through hole that runs through main casing intermediate recess portion and connecting rod in the middle of main casing, make that bottom of the present utility model is a hollow structure in addition, just has not been subjected to the restriction of hump height during fixation workpiece like this.

Claims

1. adjustable hump oild chuck, comprise main casing, its feature in: the both sides on described main casing top extend upward, formation is the umbilicate hump structure of both sides projection, and the top of main casing both sides lug boss offers the radially-directed groove, is provided with slide block in the radially-directed groove, bottom at slide block has inclined hole, also have axial arm of force hole in the lug boss of main casing both sides, in this axial arm of force hole the folder arm of force is set, folder arm of force bottom is connected with tensile machine by connecting rod; Be provided with the fixture block that the slider bottom inclined hole cooperates at the top of the described folder arm of force; Also be provided with latch in slider top, have a fixture block to be connected in slider top, also be provided with the latch that is meshed with the slider top latch in the bottom of fixture block by screw.

2. a kind of adjustable hump oild chuck as claimed in claim 1 is characterized in that: have the through hole that runs through main casing intermediate recess portion and connecting rod in the middle of main casing.