CN2271423Y

CN2271423Y - Appts for working multiple-threaded roller and arc pinion rack

Info

Publication number: CN2271423Y
Application number: CN 96218327
Authority: CN
Inventors: 王景良; 廉宝珍
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-09-09
Filing date: 1996-09-09
Publication date: 1997-12-31
Anticipated expiration: 2006-09-09

Abstract

The utility model relates to a device for processing multiple-threaded rollers and arc-shaped toothed plates. The utility model is composed of an accuracy lathe, a lathe jack indexing mechanism, a workpiece chucking mechanism, a tracer copying mechanism and a cutter frame, wherein, the lathe jack indexing mechanism is fixedly connected to a lathe chuck; the cutter frame and a lathe leading screw are connected in a follow-up mode, and the cutter frame and the tracer copying mechanism are connected in the follow-up mode. The blank of the field is filled, and a processing problem of a critical member of a roll thread machine with higher efficiency is solved.

Description

The device of processing multiple thread roll and arc tooth plate

The utility model relates to a kind of device of processing multiple thread roll and arc tooth plate, is mainly used to process the multiple thread roll and the multiple thread arc tooth plate of silk roller machine.

Screw (being commonly called as screw) as standard component, its requirement is very big, manufacturing equipment is a thread rolling machine, mainly form by a upright fixedly washboard and a movable washboard, movable washboard passes through the toggle transmission by motor, each reciprocating stroke of connecting rod is twisted into a screw, thereby its efficient is very low, and general per minute is about 250.And silk roller machine such as successive roll formula silk roller machine, Fig. 7 sees in its operation principle and mechanism.This machine has three stations, the width of roll (multiple thread roll 1) and tooth plate 32 is rolled threaded length, three fixed multiple thread arc tooth plates 32 are arranged around the roll, it on it feeder 33, screw blank 34 is rolled into screw by roll 1 and tooth plate 32 gaps, roll 1 whenever revolves and turns around, and can roll into three screws, and its efficient φ can be up to the 1000-1200 root below 6.Two great parts of difficulty of processing are exactly multiple thread roll and multiple thread arc tooth plate on the silk roller machine.

Up to now, the device that does not still have processing multiple thread roll and multiple thread arc tooth plate.

The purpose of this utility model is to fill up the blank of this area and provides a kind of several parts of installing on existing fine turning lathe in the utility model just can process the device of multiple thread roll and arc tooth plate.

The purpose of this utility model can reach by following measure: the utility model is made up of be installed mechanism, profile tracer mechanism and knife rest of fine turning lathe, lathe jack indexing mechanism, workpiece, lathe jack indexing mechanism is fixedly connected on the lathe chuck, knife rest and lathe leading screw are with being dynamically connected, and knife rest and profile tracer mechanism are with being dynamically connected.

The drawing of accompanying drawing is described as follows:

Fig. 1 is total figure of the present utility model, the plane of expression processing multiple thread roll;

Fig. 2 partly cuts open figure for the utility model lathe jack indexing mechanism;

Fig. 3 is the partial view of lathe jack indexing mechanism index dial;

Fig. 4 is the card-loading machine composition of one of the utility model workpiece (multiple thread roll);

Fig. 5 is the A-A cutaway view of Fig. 4;

Fig. 6 is the figure of the utility model processing multiple thread arc tooth plate;

Fig. 7 adopts multiple roller for screw thread that the utility model processes and operating mechanism's schematic diagram of arc tooth plate rolling screw for silk roller machine.

The utility model is described in further detail below in conjunction with embodiment and accompanying drawing:

Fig. 1 expresses the processing unit (plant) of processing multiple thread roll 1.The axle 2 that workpiece (multiple thread roll 1) will be housed is loaded between the head of a bed top 3 and tailstock center 4 of existing fine turning lathe, lathe jack indexing mechanism 7 of the present utility model is housed on the chuck 6 of lathe spindle 5, knife rest 9 is housed on lathe slide carriage 8, profile tracer mechanism 10 is housed at the offside of lathe spindle center line.

The primary structure of lathe jack indexing mechanism is seen Fig. 1-Fig. 3, index hole 12 is arranged on the index dial 11, present embodiment is used to process 62 and 64 head thread roll and arc tooth plates, so the hole count of index dial is 64 of 62 of inner rings and outer rings, be that calibration hole count on the lathe jack indexing mechanism index dial equals number of starts, latch 13 connects index dial and terminal pads 26.Whenever after processing a head thread, extract latch, and be inserted into next index hole, can process next head thread.Fig. 6 and Fig. 1 represent knife rest 9, mainly are made up of motor 14, belt and belt pulley 15, worm screw 16, worm gear 17 and axle 18, and milling cutter or emery wheel are installed on the axle.Driving pulley, worm screw, worm gear and axle rotation behind the starter motor drive milling cutter 19 or emery wheel 20 rotations with processing work.Knife rest 9 is connected with lathe leading screw 21 and moves with leading screw, and knife rest also is connected in profile tracer mechanism 10 by screw mandrel 22 and moves with pattern 10.For tool setting, in the knife rest rear end dial gauge 23 is housed, and adjusts the accurate position of feed of milling cutter or emery wheel by crank 24.

See Fig. 1 and Fig. 4 for the awl sharp-tooth shaped 25 that processes multiple thread roll afterbody, be provided with profile tracer mechanism 10.This awl sharp-tooth shaped 25 is used for rolling and goes out as wood screw awl point, and process is as follows: when knife rest moves axially with profile tracer mechanism, process at multiple thread roll afterbody and to bore sharp-tooth shaped 25 and see Fig. 4 and Fig. 1.

Fig. 4 and Fig. 5 represent to be loaded on the axle 2 between

top

3 and 4 and the mechanism that is installed of workpiece (multiple thread roll 1).By screw 27 and pressing plate 28 with Work-sheet pressing on axle 2, workpiece is rotated with axle.By jackscrew 29 axle 2 is held out against in embracing on the frame 30, will embrace frame by screw 31 and be fastened on the lathe chuck 6, axle is rotated with fine turning lathe main shaft and chuck together with workpiece.

Fig. 6 represents the utility model processing arc tooth plate, and the knife rest of representing among the figure does not transfer to and machine tool chief axis angle angle in the shape of a spiral as yet.Be installed on the machine tool chief axis chuck arc tooth plate 32 and jack indexing mechanism, successively be installed on the tool axis milling cutter and emery wheel are to be processed into the multiple thread arc tooth plate.The adjustment of its process and awl sharp-tooth shaped processing and operation are identical with aforementioned processing roll 1.

The helical pitch of considering existing precision lathe can not be equal with workpiece fully, and the utility model adopts differential indexing mechanism to eliminate both differences.Concrete calculating and operating process are as follows: as number of starts is 75, pitch is 2.2 millimeters, helical pitch=75 * 2.2=165 millimeter then, and the helical pitch of C620 lathe is 160 millimeters, both differences are 5 millimeters, 0.06667 millimeter of 5 ÷, 75 ≌, promptly the monodentate calibration need eliminate 0.06667 millimeter and just can process qualified workpiece.During process operation, whenever process a head thread after, knife rest is moved 0.0667 millimeter backward, by being loaded on after dial gauge 23 behind the knife rest measures this difference, can process this qualified workpiece.

The utility model has the advantages that: the blank of having filled up this area; On the basis of existing lathe, skilful Solved the processing difficult problem of silk roller machine key component wonderfully.

Claims

1, a kind of device of processing multiple thread roll and arc tooth plate, comprise fine turning lathe, it is characterized in that, form by be installed mechanism, profile tracer mechanism and knife rest of lathe jack indexing mechanism, workpiece, lathe jack indexing mechanism is fixedly connected on the lathe chuck, knife rest and lathe leading screw are with being dynamically connected, and knife rest and profile tracer mechanism are with being dynamically connected.

2, the device of processing multiple thread roll according to claim 1 and arc tooth plate is characterized in that, the calibration hole count on the lathe jack indexing mechanism index dial equals number of starts, has latch to connect index dial and terminal pad.

3, the device of processing multiple thread roll according to claim 1 and arc tooth plate is characterized in that, knife rest is made up of motor, belt pulley, worm screw, worm gear and axle, and milling cutter or emery wheel are installed on the axle.

4, the device of processing multiple thread roll according to claim 1 and arc tooth plate is characterized in that, dial gauge is arranged behind the knife rest.