CN85205795U

CN85205795U - Non-refacing versatile lathe tool

Info

Publication number: CN85205795U
Application number: CN 85205795
Authority: CN
Inventors: 李旭淮
Original assignee: Yin Boxian
Current assignee: Yin Boxian
Priority date: 1985-12-03
Filing date: 1985-12-03
Publication date: 1987-02-04

Abstract

Two throw-away blades with centre holes are arranged on the left and the right of an arbor, which can complete the lathe processing and the boring processing simultaneously and is suitable for various common lathes and numerical control lathes. The two throw-away blades can be firmly fastened simultaneously by adopting the pin pull-pad type blade fastening device and using a screw to contortedly bunt the back inclined plane of the kidney hole on a cutter pad. Compared with the prior art, the utility model simplifies the structure of the cutter and reduces the elements. Simultaneously, the non-obstruction in front of the cutter makes the chip removal expedite, so the cutting condition is improved. In the accompanying diagram, 1 is the arbor, 2 is the screw, 3 is the throw-away blade, and 4 is the pin.

Description

Non-refacing versatile lathe tool

The present invention is a kind of metal cutting tool.

Existing throw away multiservice car cutter, two interchangeable throw away chips are housed on a knife bar, car can be finished in the direction and the tool position that do not change lathe spindle, boring, cut three kinds of processing, be applicable to various engine lathes and numerically controlled lathe, has multipurpose (reducing the tool magazine storage), seriation, throwaway tool can be pressed advantages such as all size batch process, but reasonable inadequately part is arranged still on cutter structure, (step is finished car to throw away multiservice car cutter shown in the 184th page of (1) U.S. machinist Za Chi (American Machinist) third phase nineteen eighty-three (always rolling up 127), boring, scabble the cutter of face), the device for fastening of its two blades is, every blade is respectively with a screw, one block pressur plate, an edge bearing and other clamping element tighten up, structure is complicated, and the existence of pressing plate also can influence the smoothness of chip removal; (2) DRP B23B-29/00(PS3008 008 and for example; AT01.03.80-OT10.09.81-VT28.04.83) the throw away multiservice car cutter shown in (car, boring gang tool), its knife bar is fited by two knife bars and forms, promptly two every on blades have a knife bar, vertical opposite face of two knife bars is the energy toothed surface of interlock mutually, two knife bars are fited together the structure more complicated by the screw method that tightens up.

The objective of the invention is, under the prerequisite that keeps this class throw away multiservice car cutter advantage, improve its structure, simplify unnecessary element, strengthen globality.

Main points of the present invention are to adopt lever pin to draw the blade device for fastening of cushion; Two throw away chips that have centre bore, a public edge bearing, two pins (1 in 5 and the accompanying drawing 3 in the accompanying drawing 1) about be equipped with edge bearing (3 in the accompanying drawing 3) front portion, center, edge bearing rear portion has a rear that the slot on one inclined-plane (2 in the accompanying drawing 3) is arranged, pass knife bar front end centre with a screw (3 in the accompanying drawing 1), when tightening screw, screw is from top to bottom on the roof pressure edge bearing during inclined-plane, slot rear, just edge bearing can be pulled back, thereby two throw away chips (4 in the accompanying drawing 1) that centre bore is enclosed within on two pins pull back simultaneously, be fixed tightly in knife bar (1 and the accompanying drawing 2 in the accompanying drawing 1) about in two cutter grooves.Because edge bearing broaching tool sheet has enough pulling force, therefore tighten up reliable.

This blade device for fastening is compared with prior art (1) (U.S.'s lathe tool), has three advantages: (1) has reduced a screw, edge bearing, two block pressur plates and other clamping element, does not subtract and tighten up effect, thereby reduces cost; (2) because of having cancelled the pressing plate of blade front, make chip removal smooth and easy, thereby can improve cutting data; Can lack a tight screw at every turn when (3) tightening up blade, slightly save time.Once had the people on throw away bit, to adopt lever pin to draw the blade of cushion to tighten up method, but it tighten up a throw away chip with an edge bearing and a screw.The present invention only uses an edge bearing and a screw on throw away multiservice car cutter, just can tighten up two throw away chips simultaneously, and is simple in structure, and has multiservice car cutter advantage.

Knife bar among the present invention, two bars of having quoted the single lever-type in the aforementioned prior art (1) (U.S.'s lathe tool) and having given up in prior art (2) (West Germany's lathe tool) are unified formulas, i.e. two blades about settling on the knife bar, make cutter have the stability of globality and operation, simplified cutter structure, and reduced cost.

This cutter varies in size according to the dimensions of selected throw away chip, cutter can be made the different series specification of size, is applicable to the engine lathe and the numerically controlled lathe of various models.

Accompanying drawing 1 is the cutter overview, 1-knife bar among the figure; The 2-edge bearing; The 3-screw; The 4-throw away chip; The 5-pin; Accompanying drawing 2 is the knife bar view; Accompanying drawing 3 is the view of edge bearing and pin combination, 1-pin among the figure, 2-slot, 3-edge bearing.

Claims

1, by knife bar, edge bearing and the two a kind of throw away multiservice car cutter that can finish car, boring, processing in the lathe previous step that throw away chip machinery is assembled into, it is characterized in that adopting lever pin to draw the blade device for fastening of cushion, by a screw broaching tool pad, thereby two throw away chips that have centre bore that will be placed on this edge bearing tighten up simultaneously.

2,, it is characterized in that two throw away chips are positioned on the same knife bar according to the described throw away multiservice car of claim 1 cutter.

3, according to claim 1 and 2 described throw away multiservice car cuttves, it is characterized in that two public edge bearings of throw away chip, two pins about the front portion of edge bearing has, the rear portion has a slot, and the rear of slot is an inclined-plane.

4, according to the described throw away multiservice car of claim 3 cutter, the centre bore of two throw away chips is enclosed within respectively on two pins of same edge bearing.