CN201537824U

CN201537824U - Machining fixture

Info

Publication number: CN201537824U
Application number: CN2009200357028U
Authority: CN
Inventors: 谈伟; 刘金浦; 恽洪园; 程凯; 潘元庆; 庄伟忠; 吴勇高
Original assignee: CHANGZHOU D-MAX PRECISION DRIVE Co Ltd
Current assignee: CHANGZHOU D-MAX PRECISION DRIVE Co Ltd
Priority date: 2009-03-17
Filing date: 2009-03-17
Publication date: 2010-08-04
Anticipated expiration: 2019-03-17

Abstract

The utility model relates to a machining fixture, which is formed by a core bar, a clamping sleeve and a fastener. The core bar is a cylinder body, one end of the core bar is provided with an ejector shaft with an ejector tip while the other end is provided a conical-face shaft tail and the middle portion is provided with shaft shoulders, the ejector shaft is provided with at least one through hole in radial direction of the shaft, the clamping sleeve is formed by two bearing bushes, each bearing bush is provided with at least one through hole in the radial direction of the bush, the clamping sleeve is sleeved on the circumference of the ejector shaft of the core bar, and the fastener is fastened by sequentially passing the through holes of one shaft bush, the ejector shaft and the other bearing bush. Adopting the fixture, short shaft parts can be conveniently clamped, and be conveniently machined with knife tools, and since diameter of the fixture is relatively small, the knife tools do not contact with the fixture.

Description

A kind of machined frock clamp

Technical field

The utility model relates to a kind of machined frock clamp, relates to a kind of machined frock clamp of short and small axle class in particular.

Background technology

In machined for the processing of axial workpiece, need before processing, it to be fixed on the lathe by anchor clamps, usually adopt scroll chuck clamping axial workpiece at present on the lathe, but use scroll chuck to clamp then particularly inconvenience of reprocessing for short and small axial workpiece, very heavy when clamping on the one hand, operate not aspect, adding the inconvenience in man-hour on the other hand, cutter is very likely run into the catching of chuck and the phenomenon that occurs forging a knife.

The utility model content

For solving the problems of the technologies described above, the utility model provides a kind of technical scheme of machined frock clamp, and the axial workpiece that the clamping easily of this frock clamp is short and small is avoided the phenomenon that occurs forging a knife.

The utility model adopts following technical scheme to realize the purpose of this utility model: a kind of machined frock clamp, it is characterized in that: frock clamp is by plug, chuck, securing member is formed, described plug is a cylinder, one end of plug is to have top apical axis, the other end is provided with conical surface tailing axle, the middle part is provided with the shaft shoulder, apical axis a through hole radially is set at least, described chuck is made up of two bearing shells, every bearing shell a through hole radially is set at least, bearing shell is sleeved on the apical axis periphery of plug, and securing member passes through bearing shell successively, apical axis, the through hole of bearing shell is fastening.

Described plug is a circular cylinder, and the diameter of the shaft shoulder of plug is greater than the diameter that has top apical axis.

Respectively there is a circle bulge loop at the edge of the axial two ends inner surface of described bearing shell.

The axial end portion of described bearing shell does not contact with the shaft shoulder.

Described securing member comprises screw bolt and nut.

Have top apical axis by a top end that withstands workpiece, the outside of apical axis and the sub-fraction of workpiece are wrapped up by two bearing shells, the bulge loop of the inner surface at the axial two ends of bearing shell clamps apical axis and workpiece respectively, thereby securing member makes workpiece, bearing shell and closely fixing mutually with top apical axis by through hole, the shaft shoulder of plug, conical surface tailing axle carry out fastening, location respectively by the chuck on the lathe, taper hole again in the frock clamp, the other end of workpiece positions by the clamping on the lathe is top simultaneously, thereby realizes the purpose of frock clamp.

The axial workpiece that the utility model clamping easily is short and small, cutter can carry out clamping processing to short and small axial workpiece easily, and process is easy to operate, and because the diameter of the utility model anchor clamps is less relatively, so cutter is difficult for touching anchor clamps.

Description of drawings

Fig. 1 is the structural representation of the utility model in user mode.

Fig. 2 is a vertical view of the present utility model.

Among the figure: the 1-plug, the 1-1-apical axis, the 1-2-shaft shoulder, 1-3-conical surface tailing axle, the 2-1-bearing shell, the 2-2-bulge loop, the 3-bolt, the 4-nut, the 5-workpiece, the 6-clamping is top.

The specific embodiment

Embodiment of the present utility model as shown in Figure 1 and Figure 2, a kind of machined frock clamp is made up of plug 1, chuck, securing member; One end of plug 1 is to have top apical axis 1-1, and the other end is provided with conical surface tailing axle 1-3, and the middle part is provided with shaft shoulder 1-2, and apical axis 1-1 radially is provided with a through hole; Chuck is made up of two bearing shell 2-1, and every bearing shell 2-1 radially is provided with a through hole equally; Securing member is made up of bolt 3 and nut 4.

Apical axis 1-1 of the present utility model is wrapped up by two bearing shell 2-1 with the outside of top apical axis 1-1 and the sub-fraction of workpiece 5 by the top workpiece 5 that withstands, and the inner surface at the axial two ends of bearing shell 2-1 clamps apical axis 1-1 and workpiece 5 respectively.

Be more effective axial workpiece and the location of clamping, the edge of the inner surface at the axial two ends of bearing shell 2-1 respectively is provided with a circle bulge loop 2-2.

For reducing the size of frock clamp, the diameter of apical axis 1-1 that makes plug 1 is less than the diameter of plug 1 middle part shaft shoulder 1-2.

In the time will processing short and small workpiece 5, for better clamping effect is arranged, at first need on the end face of workpiece 5, respectively to process an aperture, then workpiece 5 is placed between the clamping top 6 on this frock clamp and the lathe, the top 1-1 of plug 1 and the clamping on the lathe top 6 withstand on respectively in the aperture on workpiece 5 end faces, the bulge loop 2-2 at the axial inner surface edge of bearing shell 2-1 this moment place is clamped in respectively on the apical axis 1-1 of workpiece 5 and plug 1, workpiece 5 is located reliably like this, fastening by through hole with securing member, fastening nut 4, thereby make workpiece 5, bearing shell 2-1 and closely fixing mutually with top apical axis 1-1, frock clamp and workpiece 5 are processed by shaft shoulder 1-2 and workpiece 5 that plug 1 is fixed in chuck on the lathe and clamping top 6 respectively again, the taper hole of the conical surface tailing axle 1-3 of plug 1 and the machine tool chief axis location that cooperatively interacts wherein, scroll chuck on the lathe blocks the shaft shoulder 1-2 of plug 1, and cutter promptly can carry out processing to workpiece 5 easily.

In order to produce the location of frictional influence bearing shell 2-1 between the shaft shoulder 1-2 that prevents bearing shell 2-1 and plug 1, leave the gap between the shaft shoulder 1-2 of the axial end portion of described bearing shell 2-1 and plug 1.

When the utility model is applicable to and produces in enormous quantities to the clamping of workpiece 5, easy to operate, as workpiece 5 for the different-diameter size, the utility model has plug 1, chuck, the securing member of different size to match with it, the axial workpiece that clamping easily is short and small, cutter can carry out clamping processing to short and small axial workpiece easily, and because the diameter of frock clamp is less relatively, so cutter is difficult for touching anchor clamps.

Claims

1. machined frock clamp, it is characterized in that: by plug (1), chuck, securing member is formed, described plug (1) is a cylinder, one end of plug (1) is to have top apical axis (1-1), the other end is provided with conical surface tailing axle (1-3), the middle part is provided with the shaft shoulder (1-2), apical axis (1-1) a through hole radially is set at least, described chuck is made up of two bearing shells (2-1), every bearing shell (2-1) a through hole radially is set at least, bearing shell (2-1) is sleeved on apical axis (1-1) periphery of plug (1), by two bearing shells (2-1), the through hole of apical axis (1-1) utilizes securing member to make two bearing shells (2-1) and apical axis (1-1) fastening mutually.

2. machined frock clamp according to claim 1 is characterized in that: described plug (1) is a circular cylinder, and the diameter of the shaft shoulder (1-2) of plug (1) is greater than the diameter that has top apical axis (1-1).

3. machined frock clamp according to claim 1 is characterized in that: respectively there is a circle bulge loop (2-2) at the edge of the axial two ends inner surface of described axle (2-1).

4. according to claim 1 or 3 described machined frock clamps, it is characterized in that: the axial end portion of described bearing shell (2-1) does not contact with the shaft shoulder (1-2).

5. machined frock clamp according to claim 1 is characterized in that: described securing member comprises bolt (3) and nut (4).