CN203045337U

CN203045337U - Milling clamp

Info

Publication number: CN203045337U
Application number: CN 201220637847
Authority: CN
Inventors: 顾林男
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-11-28
Filing date: 2012-11-28
Publication date: 2013-07-10
Anticipated expiration: 2022-11-28

Abstract

The utility model relates to a milling clamp. The milling clamp comprises a clamp body, wherein the upper end of the clamp body is a cone which becomes smaller gradually from outside to inside; a clamping jaw which can extend in and out of the clamp body is arranged in the clamp body; a pull rod is also arranged in the clamp body; one end of the pull rod is connected with the clamping jaw; the other end of the pull rod extends out of the clamp body; a positioning ring is arranged in the clamping jaw; the positioning ring is fixedly connected with the clamp body through a fastening piece; and communicated chip discharging holes are formed in the pull rod and the positioning ring. According to the milling clamp provided by the utility model, iron chips generated when the milling clamp is used for machining can be discharged from the bottom of the clamp body along the chip discharging holes, the iron chips are prevented from accumulating in the inside diameter of a bearing sleeve ring, and the surface of the inside diameter of the bearing sleeve ring is prevented from being scratched and simultaneously the machining precision is ensured; and therefore, the machining quality is ensured.

Description

A kind of milling fixture

Technical field

The utility model relates to a kind of milling fixture, relates in particular to a kind of milling fixture that can be discharged to iron filings the clamp body back, belongs to the Workpiece clamping device technical field of machining.

Background technology

When the internal diameter of the middle-size and small-size bearing ring of milling, usually use milling fixture as shown in Figure 1, this comprises clamp body 1, the upper end of described clamp body 1 is the taper that ecto-entad diminishes gradually, is provided with the claw 2 that can stretch into and stretch out clamp body in the described clamp body 1, also has pull bar 3 in the described clamp body, one end of described pull bar 3 links to each other with claw 2, the other end stretches out clamp body 1, is provided with locating ring 4 in the described claw 2, and described locating ring 4 is fixedlyed connected with clamp body by securing member 5.Its operation principle is: bearing ring to be processed is placed on the locating ring 4, outwards spurs pull bar 3, pull bar 3 pulling claws 2 stretch in the clamp body 1, and claw 2 tightens up along the openend taper of clamp body 1, just bearing ring to be processed is clamped.But, using milling fixture to add man-hour, iron filings can be deposited in the internal diameter of bearing ring, may scratch the inside diameter surface of bearing ring or influence machining accuracy, make crudy to guarantee.

The utility model content

The utility model purpose is to provide a kind of can be discharged to the clamp body back to iron filings to guarantee the milling fixture of crudy in order to overcome the deficiencies in the prior art.

For achieving the above object, the technical solution adopted in the utility model is: a kind of milling fixture, comprise clamp body, the upper end of described clamp body is the taper that ecto-entad diminishes gradually, be provided with the claw that can stretch into and stretch out clamp body in the described clamp body, also has pull bar in the described clamp body, one end of described pull bar links to each other with claw, the other end stretches out clamp body, be provided with locating ring in the described claw, described locating ring is fixedlyed connected with clamp body by securing member, is provided with the chip-removal hole that communicates in the described pull bar and in the locating ring.

Preferably, be provided with crumb guiding pipe in the described chip-removal hole.

Preferably, the length of described chip-removal hole is greater than the length of crumb guiding pipe; The upper end of described chip-removal hole is the taper that ecto-entad diminishes gradually; The upper end of described crumb guiding pipe links to each other with the taper lower end of chip-removal hole.

Preferably, described securing member is the countersunk head soket head cap screw.

Because the utilization of technique scheme, the utility model compared with prior art has following advantage:

A kind of milling fixture of the utility model scheme, owing to be provided with the chip-removal hole that communicates in the pull bar and in the locating ring, can discharge the bottom along chip-removal hole from clamp body at the iron filings that use milling fixture to add the generation in man-hour, avoid iron filings to be deposited in the internal diameter of bearing ring, the inside diameter surface that prevents bearing ring is scratched and has guaranteed machining accuracy simultaneously, makes crudy be guaranteed.

Description of drawings

Below in conjunction with accompanying drawing technical solutions of the utility model are described further:

Accompanying drawing 1 is the structural representation of the milling fixture of prior art;

Accompanying drawing 2 is the structural representation of milling fixture of the present utility model;

Wherein: 1, clamp body; 2, claw; 3, pull bar; 4, locating ring; 5, securing member; 6, chip-removal hole; 7, crumb guiding pipe.

The specific embodiment

The utility model is described in further detail below in conjunction with drawings and the specific embodiments.

Described in the utility model a kind of milling fixture as shown in Figure 2, comprise clamp body 1, the upper end of described clamp body 1 is the taper that ecto-entad diminishes gradually, be provided with the claw 2 that can stretch into and stretch out clamp body in the described clamp body 1, also has pull bar 3 in the described clamp body 1, one end of described pull bar 3 links to each other with claw 2, the other end stretches out clamp body 1, be provided with locating ring 4 in the described claw, described locating ring 4 is fixedlyed connected with clamp body by securing member 5, is provided with the chip-removal hole 6 that communicates in the described pull bar 3 with in the locating ring 4; Be provided with crumb guiding pipe 7 in the described chip-removal hole 6; The length of described chip-removal hole 6 is greater than the length of crumb guiding pipe 7; The upper end of described chip-removal hole 6 is the taper that ecto-entad diminishes gradually; The upper end of described crumb guiding pipe 7 links to each other with the taper lower end of chip-removal hole 6; Described securing member 5 is the countersunk head soket head cap screw.

Milling fixture of the present utility model, during use, the iron filings that come out by the milling machine milling can be along crumb guiding pipe 7 from clamp body 1 bottom discharge, avoid iron filings to be deposited in the internal diameter of bearing ring, the inside diameter surface that prevents bearing ring is scratched and has guaranteed machining accuracy simultaneously, makes crudy be guaranteed; Use after a period of time, periodic replacement crumb guiding pipe 7 avoids iron filings to pile up in crumb guiding pipe 7, influences the chip removal effect; If the chip removal effect is bad automatically, can add logical compressed air in the end of chip-removal hole 6, make that the chip removal effect is better.

Below only be concrete exemplary applications of the present utility model, protection domain of the present utility model is not constituted any limitation.All employing equivalents or equivalence are replaced and the technical scheme of formation, all drop within the utility model rights protection scope.

Claims

1. milling fixture, comprise clamp body, the upper end of described clamp body is the taper that ecto-entad diminishes gradually, be provided with the claw that can stretch into and stretch out clamp body in the described clamp body, also have pull bar in the described clamp body, an end of described pull bar links to each other with claw, the other end stretches out clamp body, be provided with locating ring in the described claw, described locating ring is fixedlyed connected with clamp body by securing member, it is characterized in that: be provided with the chip-removal hole that communicates in the described pull bar and in the locating ring.

2. milling fixture according to claim 1 is characterized in that: be provided with crumb guiding pipe in the described chip-removal hole.

3. milling fixture according to claim 2, it is characterized in that: the length of described chip-removal hole is greater than the length of crumb guiding pipe; The upper end of described chip-removal hole is the taper that ecto-entad diminishes gradually; The upper end of described crumb guiding pipe links to each other with the taper lower end of chip-removal hole.

4. according to the described milling fixture of one of claim 1～3, it is characterized in that: described securing member is the countersunk head soket head cap screw.