CN2529724Y

CN2529724Y - Radially combined dog

Info

Publication number: CN2529724Y
Application number: CN 02230486
Authority: CN
Inventors: 谢广林
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-04-03
Filing date: 2002-04-03
Publication date: 2003-01-08
Anticipated expiration: 2012-04-03

Abstract

The utility model relates to a radially combined dog. The dog is provided with a positioning part which is assorted with the positioning part of the dog mat, and the positioning parts are fixed through a longitudinally fastening element(6). The dog(1) is provided with an axial assistant screw hole(4) which is used for fixing a fitting. An open fine regulating washer is arranged between the dog(1) and the dog mat. The utility model can also suitable to the processing of work piece the clamping surface of which takes an abnormal shape by changing a dog mat with an abnormal surface which is matched with the work piece. The utility model has the advantages of rational stress, increasing the precision, saving the material, expanding the use range of the dog plate, replacing various particular tools, shortening the processing assistant time and thereby increasing the production efficiency.

Description

The claw that can radially make up

Technical field

The utility model relates to the parts of metal cutting equipment, mainly is a kind of claw that can radially make up.

Background technology

There are a series of deficiencies in the scroll chuck of universal fixturing, and little as its clamping force, clamping is limited in scope, can only the clamping regular shape as the cylindrical workpiece that waits; In use can cause precise decreasing because of various factors.The usual method that addresses the above problem is to join the car claw.And claw generally all must be difficult to turning through quenching, in case of necessity can only reface behind clamping face weldering the preceding paragraph soft metal of claw, and it is more loaded down with trivial details time-consuming to work; And the hard card pawl has just lost certain versatility after becoming soft claw, and wearing and tearing easily or else can clamping blank and other workpiece.

Movable jaw of the prior art is coupled to each other in the axial direction by bolt by left and right sides two parts and forms (see figure 1).It can realize positive pawl and two kinds of forms of anti-pawl, can regulate when clamping precision descends.But because the left and right sides two-part radial fit gap X very little (generally below 0.1mm), so adjustable range is extremely limited, regulated quantity also is difficult to hold, and operates loaded down with trivial details time-consumingly, can't reach higher precision.In order to satisfy some clamping requirements, prepare soft claw by the mode of changing right-hand part.But because the right-hand part volume is big, need the groove with degree of precision, hole and end face that processing in the above matches with the left side, step etc. again, cause improvement cost big, also very time-consuming.

And for example Chinese patent ZL91215058.0 disclosed a kind of " the circumferential edge axis hole is located soft claw " (see figure 2) also is to make claw two parts in axial connection by bolt.But the suffered fastening force of right-hand part is axial, and caught workpiece is radially to the counter-force that palmula produces, and this unreasonable design can cause the claw insufficient rigidity, influences the stable and precision of clamping, has limited the clamping scope simultaneously.

Summary of the invention

The utility model technical issues that need to address are, under the prerequisite that guarantees certain strength and stiffness, provide a kind of design stressed rationally, both kept original versatility of common claw and function in the prior art, can realize the claw that can radially make up of some specificity again easily according to various situations.It can utilize soft pawl easily, enlarges the clamping scope, improves the clamping condition, improve and the maintenance clamping precision, and easy to adjust, save material.

Claw of the present utility model has the location division that cooperates with palmula and the fixing fastener hole of palmula on it, it is characterized in that described location division is on the axial vane surface of claw, and described fastener hole is in the location division and is radially.Match with the location division of palmula in the claw location division, and radially fixing by securing member.Described axial vane surface can be on the claw body, also can be the face on one or split boss or the ladder boss; Described location division can be groove, hole, platform, post of different shape etc.The design's palmula and claw are realized cooperating with the location division, and fix by securing member, and the three is combined into one diametrically, and this just makes that the counter-force direction of the fastening force of palmula and workpiece is consistent, makes force-bearing situation more reasonable.Be laid with the axially auxiliary screw that is used for fixing annex on the claw, its effect be when needed fixedly servicing unit realize the clamping requirement that some are specific; Auxiliary screw can be arranged on the top of claw side as required, below or both sides, and quantity is more than 1.Boss often has two kinds of schemes in the position of claw, and the one, make claw L-shaped in the bottom, the auxiliary screw of fixing fitting is laid in the pawl side of boss top; The 2nd, make claw be "T"-shaped at the middle part, auxiliary screw then is laid in the pawl side of boss upper and lower.The claw upper positioning body often adopts groove, because this structure is more stable, groove can be a rectangle, also can be key shape.The utility model can be adjusted clamping precision by the mode of placing pad between claw and palmula, and regulated quantity can realize by the thickness of pad; The utility model has improved the interchangeability of claw greatly, even non-first wife's chuck also can reach higher precision.Pad can be made the U-shaped opening, is convenient to lay.Clamping face of the present utility model is realized by changing palmula.Claw can be selected palmula according to processing request, uses the soft pawl of becoming of soft palmula, uses the hard pawl that becomes of hard pad; Replacing has the palmula of the shaped face that matches with workpiece, and can adapting to clamping, to look like bus be non-directional rotary body (round platform, spindle, cucurbit body etc.), or the processing of the workpiece of the part of multiple edge body (triangular prism, square column, rectangular post etc.).

The axial of chuck that axially be meant described in the utility model.

The utility model design is stressed rationally, can improve precision, again economical with materials; It has enlarged the usage range of chuck, can substitute various special fixtures, has shortened processing non-cutting time, thereby has improved production efficiency.The utility model can be selected during for use the various palmulas that form series according to size, purposes as the annex supply.

Description of drawings

Fig. 1, Fig. 2 are the background technology schematic diagrames;

Fig. 3 is key shape grooved profile figure on the claw;

Fig. 4 is embodiment 1 schematic diagram;

Fig. 5 is the A-A echelon sectional view of Fig. 4;

Fig. 6 is the B-B cutaway view of Fig. 4;

Fig. 7,8, the 9th, palmula clamping face is used schematic diagram;

Figure 10 is U-shaped opening pad figure.

The specific embodiment

Below in conjunction with accompanying drawing the utility model is further described.

Embodiment 1.See Fig. 4,5,6, this routine claw 1 has the axial boss 1-1 of an one to be located at the bottom of claw 1, makes claw L-shaped; The above and below of boss respectively has the convex body precision-fit of cuboid groove 1-3,1-2 and upper and lower palmula 3,2 (can install U-shaped opening pad in case of necessity additional, see Figure 10), and radially fixedly make the three be implemented in radially combination with bolt 6 by hole 5, closely combine as a whole.2 auxiliary screws 4 are laid in the top of pawl side boss.When workpiece 8 is special-shaped, the clamping face that then plays palmula 2 also is the abnormity that matches, and is commonly used as the round platform (see figure 8); As circle drum (see figure 7); As square (see figure 9).

This type of claw simplicity of design compactness.Because claw is subjected to force direction consistent with the pulling force of bolt when clamping, and point to the bearing-surface of palmula on claw, clamping power helps the fastening of palmula, thereby needn't add the antarolium volume for consideration intensity, also big locating slot needn't be set and reduce claw intensity.Securing member has only a bolt, and the mounting or dismounting of palmula are more convenient.

Embodiment 2.On 9,10,11 on Fig. 1, establish groove (can be rectangle, also can be key shape shown in Figure 3), join palmula, and, be ladder projective table type claw by bolting.

Claims

1, a kind of claw that can radially make up has the location division that cooperates with palmula and the fixing fastener hole of palmula on it, it is characterized in that described location division is on the axial vane surface of claw (1), and described fastener hole (5) is in the location division and is radially.

2, the claw that can radially make up according to claim 1 is characterized in that described location division matches with the location division of palmula, and radially fixing by securing member (6).

3, the claw that can radially make up according to claim 1 and 2 is characterized in that being laid with on it axially auxiliary screw (4) that is used for fixing annex.

4, the claw that can radially make up according to claim 1 and 2 is characterized in that described location division is a groove, and the location division of palmula is the convex body that matches.

5, the claw that can radially make up according to claim 3 is characterized in that described location division is a groove, and the location division of palmula is the convex body that matches.

6,, it is characterized in that having between described claw (1) and the palmula fine setting pad of opening according to claim 1 or the 2 or 5 described claws that can radially make up.

7, the claw that can radially make up according to claim 3 is characterized in that having between described claw (1) and the palmula fine setting pad of opening.

8, the claw that can radially make up according to claim 4 is characterized in that having between described claw (1) and the palmula fine setting pad of opening.

9,, it is characterized in that the described clamping face of palmula (2) down is the shaped face that matches with workpiece according to claim 1 or 2 or 5 or the 7 or 8 described claws that can radially make up.

10, the claw that can radially make up according to claim 3 is characterized in that the described clamping face of palmula (2) down is the shaped face that matches with workpiece.