CN2640663Y

CN2640663Y - Automatic tool withdrawal carrier

Info

Publication number: CN2640663Y
Application number: CN 03260556
Authority: CN
Inventors: 王慰祖
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-09-19
Filing date: 2003-09-19
Publication date: 2004-09-15
Anticipated expiration: 2013-09-19

Abstract

The utility model relates to an automatic tool withdrawal knife rest, which has two shaft holes in transverse and lenthways direction, a cutter body is arranged in the transverse shaft hole, a tool withdrawal shaft is arranged in the lengthways shaft hole; a returning spring is sleeved with the shaft rod of the external tool withdrawal shaft; one end of the returning spring is pressed in the end surface of the knife rest, while the other end is pressed in the screw cap of the front tool withdrawal shaft; a clip plate is fixed on the back of the cutter body, a returning spring is sleeved with the cutter body which is arranged between the clip plate and the knife rest; the tail end of the transverse shaft hole is connected with the lengthways shaft hole, the clip plate is pressed in the big end shaft diameter of the tool withdrawal shaft; a cutter body resetting device is arranged in the superior part of the knife rest. When in use, according to the length of the screw thread in the blueprint to determine the position of the workpiece sloping baffle, the cross slide handle of the lathe only has the feeding operation, making the slip plate drop to the position with minor diameter from the position with major diameter, achieving tool withdrawal; after returning to the initial position, the lathe presses the spanner, the returning spring makes the cutter body return to the position of workpiece tool withdrawal shaft with major diameter, to start the second feeding operation. The utility model has a simple structure and steady operation, and is safe and convenient, greatly increasing the processing quality and the work efficiency of the screw thread, the utility model cam be widely expanded and used.

Description

The automatic withdrawal knife rest

Affiliated field: the utility model relates to a kind of automatic withdrawal knife rest.

Background technology: engine lathe leading screw work, mainly be that the operator is according to the lathe cross-slide, the random upper slitter of handle scale, random withdrawing, only with operator's memory operation, the machining screw precision is low like this, and machining accuracy is the duty that depends on the operator, be easy to generate accidental error, speed is slower during withdrawing, and operating efficiency is lower.

Summary of the invention: the purpose of this utility model provides the automatic withdrawal knife rest of a kind of machining accuracy height, stable processing quality.The purpose of this utility model realizes by following structure: the utility model is a kind of automatic withdrawal knife rest, knife rest has horizontal and vertical two axis holes, laterally in the axis hole cutter hub is installed, vertically in the axis hole withdrawing axle is installed, the shaft rod upper sleeve of withdrawing axle outside reinstalls multiple spring, this returning spring one end is compressed on that the other end is compressed on the nut of withdrawing axle front portion on the knife rest end face, a clamp is fixed at the cutter hub rear portion, suit back-moving spring on the cutter hub between clamp and the knife rest, laterally the axis hole rear portion is communicated with vertical axis hole, clamp is compressed on the big end diameter of axle of withdrawing axle, and a cutter hub resetting means is installed on knife rest top.The utlity model has simple in structurely, make easily, characteristics such as withdrawing is accurate, and is easy to use.When using written or printed documents to use new shape, according to reach size in the drawing, determine part slanting baffle position, lathe cross-slide handle is only done the feed operation, during withdrawing because slanting baffle position is fixing, and this moment, knife rest still advanced, and makes the axle bed falling of the clamp at cutter hub rear portion along the cutter shaft that goes down, make clamp fall the minor diameter position, finish withdrawing from major diameter.Lathe presses spanner after returning initial position, and back-moving spring makes cutter hub turn back to part withdrawing axle major diameter position, beginning feed for the second time operation.If the utility model car system M64 * 6 * 150 (reaches), 5 cuttves just can be finished, improve 1.5 times of work efficiency than commonsense method.The utility model volume is less, just like an indexable turning tool, can change at any time, has characteristics such as easy to use.The utility model is rational in infrastructure, and is stable, safe ready, and screw processing quality and operating efficiency obtain bigger raising, can extensively promote the use of.

Description of drawings:

Fig. 1 is the utility model structure cutaway view

Fig. 2 is the vertical view cutaway drawing of Fig. 1

The specific embodiment:

The utility model as shown in Figure 1 is a kind of automatic withdrawal knife rest, cutter hub 1 is installed in the knife rest 2, knife rest 2 has horizontal and vertical two axis holes, laterally in the axis hole cutter hub 1 is installed, as shown in Figure 2, vertically in the axis hole withdrawing axle 3 is installed, the shaft rod upper sleeve of withdrawing axle 3 outsides reinstalls multiple spring 4, these returning spring 4 one ends are compressed on that the other end is compressed on the nut 5 of withdrawing axle front portion on the knife rest end face, a clamp 6 is fixed at cutter hub 1 rear portion, and suit back-moving spring 7 on the cutter hub between clamp 6 and the knife rest, and laterally the axis hole rear portion is communicated with vertical axis hole, clamp 6 is compressed on the big end diameter of axle of withdrawing axle 3, and a cutter hub resetting means is installed on knife rest 2 tops.Described cutter hub resetting means has a chute 8 for the horizontal axis hole in knife rest 2 front portions, backing pin 9 is fixed on the cutter hub and is positioned at chute 8,10 of spanners are fixed on knife rest 2 outsides, and spanner 10 is hinged on the spanner seat 11, and spanner 10 front portions are arc and the chute 8 that is positioned at backing pin 9.Nut 5 anterior certain distances are being fixed slanting baffle 12.Install and fix adjustable blade 13 on the cutter hub 1.

Claims

1, a kind of automatic withdrawal knife rest, cutter hub (1) is installed in the knife rest (2), it is characterized in that: knife rest (2) has horizontal and vertical two axis holes, laterally in the axis hole cutter hub (1) is installed, vertically in the axis hole withdrawing axle (3) is installed, the outside shaft rod upper sleeve of withdrawing axle (3) reinstalls multiple spring (4), these returning spring (4) one ends are compressed on that the other end is compressed on the nut (5) of withdrawing axle front portion on the knife rest end face, a clamp (6) is fixed at cutter hub (1) rear portion, suit back-moving spring (7) on the cutter hub between clamp (6) and the knife rest, laterally the axis hole rear portion is communicated with vertical axis hole, clamp (6) is compressed on the big end diameter of axle of withdrawing axle (3), and a cutter hub resetting means is installed on knife rest (2) top.

2, a kind of automatic withdrawal knife rest according to claim 1, it is characterized in that: described cutter hub resetting means is for having a chute (8) at the anterior horizontal axis hole of knife rest (2), backing pin (9) is fixed on the cutter hub and is positioned at chute (8), spanner (10) seat is fixed on knife rest (2) outside, spanner (10) is hinged on the spanner seat (11), and spanner (10) is anterior to be arc and the chute (8) that is positioned at backing pin (9).

3, a kind of automatic withdrawal knife rest according to claim 1 and 2 is characterized in that: the anterior certain distance of nut (5) is being fixed slanting baffle (12).