CN205200720U

CN205200720U - Spiral processing equipment

Info

Publication number: CN205200720U
Application number: CN201520979347.5U
Authority: CN
Inventors: 姚健
Original assignee: Chongqing Jianshe Motorcycle Co Ltd
Current assignee: Chongqing Jianshe Industry Group Co Ltd; Chongqing Jianshe Motorcycle Co Ltd
Priority date: 2015-12-01
Filing date: 2015-12-01
Publication date: 2016-05-04
Anticipated expiration: 2025-12-01

Abstract

The utility model discloses a spiral processing equipment, it can realize standard before the thread processing advance with thread processing after the standard move back, guarantee the rotatory synchronous relation of feeding with the knife rest of main shaft, and then satisfy spiral processing requirement. Including the lathe, the lathe has knife rest, main shaft, X axle servo motor, Y axle servo motor, Z axle servo motor all install on the lathe, X axle servo motor control lathe saddle X axial motion, Z axle servo motor control lathe saddle Z axial motion, Y axle servo motor control main shaft is rotatory, and the corner of main shaft is controlled to the corner of the unit pulse through Y axle servo motor, realizes the rotatory synchronous relation of feeding with the knife rest of main shaft.

Description

Screw processing equipment

Technical field

The utility model relates to screw processing field, particularly relates to a kind of screw processing equipment.

Background technology

WQ230 product is the up-to-date military fight pistol succeeded in developing voluntarily of China, and have structure advanced person, novelty, simple to operate, cartridge capacity is large, the features such as the firepower duration is long, and precision is good, and reliability is high, and duties are good, has independence, autonomous intellectual property.See Fig. 1, be the structural representation of the military fight pistol of WQ230, WQ230 product design adopts gun barrel turn round rigid locking mechanism, this mechanism is primarily of compositions such as gun barrel 2, gunlock 1, connection seat, kickers.WQ230 product blocking mechanism, locking good rigidity, locking supporting surface is convenient to arrange symmetrical with axis of bore, and favourable to fire accuracy, reliable operation, structure is simple, is the shining point of WQ230 product.See Fig. 2 a, Fig. 2 b, Fig. 2 c, for gunlock and gun barrel design of part process schematic representation, (" A " point for after gun barrel locking, gunlock helicoid starting point, measures, is of a size of 37.2 by 41 ° and φ 19.2 ₀ ^{+ 0.10}), take measures from technique, ensure that on gunlock and gun barrel, between two close lock supporting surface, laminating is good, has enough locking rigidity, realize that locking is reliable, precision strike.As can be seen here, the crudy of locking helical directly affects into the performance of rifle.

Helical method for processing in trial-manufacturing process:

During the trial-production of WQ230.1.02-1 gunlock, gunlock screw processing has come with C6132 engine lathe.Because WQ230 product gunlock spiral is a with neither head nor tail spiral, pitch large (7mm), spiral groove width (3.6 ₀ ^{+ 0.18}) and dark and be blind hole inside spin, cutter revolves the back of the body to be grown, and difficulty of processing is large.It is again the first significant dimensions of gunlock that spiral plays spot size 37.2H10 (Z101), and size often overproof 0.01 just affect gun barrel rotation 30 ' 52 ", directly affect locking and properties of product.During processing spiral, point Roughing and fine machining.Rough turn cutting edge roundness is narrow, and point twice remove surplus, and finish turning ensures processing dimension.The subject matter existed is that operator adds man-hour, and stress, fatiguability, labour intensity are large, and when requiring turning screw processing in processing, realize standard and open standard and stop, slightly do not note just easily touching cutter, crudy is difficult to guarantee.

The problem that lathe in machining gunlock spiral runs into:

Digit Control Machine Tool is the abbreviation of numerically-controlled machine tool, also known as NC lathe.It has adapt to strong, machining accuracy is high, crudy is stable and production efficiency advantages of higher, integrated application many-sided technological achievements such as electronic computer, automatic control, servo-drive, accurate measurement and novel mechanical structures.The kinematic system of numerically controlled lathe: by knife rest longitudinal direction (Z-direction) and laterally (X to) motion form, two servomotors are adopted to drive respectively, through ball screw to slide plate and knife rest, do not need the drive disk assembly such as change gear, polished rod, driving-chain short precision is high.Multifunctional numerical control lathe adopts direct current or exchange Spindle control unit (servomotor) to carry out drive shaft, it can do infinitely variable speeds by control instruction, without the need to carrying out speed change by multi-stage gear pair again between main shaft, therefore the structure of numerically controlled lathe greatly simplifies, its precision and rigidity improve greatly, automatically can complete the machining of inside and outside circle cylinder, taper seat, arc surface, end face, screw thread etc.

Lathe in machining screw thread drives by main shaft servomotor, passes to pulse coder by synchronous pulley and Timing Belt 1:1.As the spindle turns, pulse coder just sends and detects pulse signal to digital control system, make the rotation of spindle drive motor and the cutting feeding of knife rest keep synchronized relation, when namely realizing machining screw, main shaft is gone around, and knife rest moves the movement relation of a workpiece helical pitch to Z-direction.

On Digit Control Machine Tool during cutting thread, no matter be G33 (screw chasing), G76 (screw chasing combined-circulation), or G92 (thread cutting circulation) keep strict velocity ratio relation along the Z-direction feeding in pitch direction and the rotation of machine tool chief axis.But cutting thread on Digit Control Machine Tool, owing to there being the deceleration working angles of feed mechanism after the acceleration of feed mechanism before cutting thread or cutting thread, will having and introduce distance δ 1 and cross over distance δ 2 for this reason.See Fig. 3, for feed mechanism before numerically controlled lathe, laggardly give mechanism kinematic schematic diagram, δ 1 is relevant with the dynamic characteristic of lathe dragging system with the numerical value of δ 2, relevant with the precision of screw thread with the pitch of screw thread.General δ 1 is 2 ~ 5mm, takes large values to coarse pitch and high-precision screw thread; δ 2 is generally taken as about 1/4 of δ 1.Gunlock locking helical is short, require high and process in a narrow space, enough do not allow bit space, allows the feed mechanism of numerically controlled lathe carry out the process of acceleration or deceleration.And on Digit Control Machine Tool during cutting thread, thread head and screw thread tail are the intervals of a varying pitch, without strict, fixing, regulation pitch, therefore be not suitable for the processing of WQ230.1.02-1 gunlock spiral.

Utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of screw processing equipment is provided, standard before it can realize screw thread process enter with screw thread process after standard move back, ensure that main shaft rotates and the synchronized relation of knife rest feeding, and then meet screw processing requirement.

The purpose of this utility model is achieved in that

A kind of screw processing equipment, comprise lathe, described lathe has knife rest, main shaft, also comprise the X-axis servomotor of milling machine digital-control processing system, Y-axis servomotor, Z axis servomotor, described X-axis servomotor, Y-axis servomotor, Z axis servomotor is installed on lathe, described X-axis Serve Motor Control lathe saddle X-motion, described Z axis Serve Motor Control lathe saddle Z-motion, described Y-axis Serve Motor Control main shaft rotates, the corner of main shaft is controlled by the corner of the unit pulse of Y-axis servomotor, realize main shaft and rotate the synchronized relation with knife rest feeding.

Further, this process equipment is for processing gunlock locking helical.Standard before this process equipment can realize screw processing easily enter with screw processing after standard move back, meet the process requirements of gunlock locking helical.

In order to reduce the improvement cost of lathe, preferably, described lathe is engine lathe.

Owing to have employed technique scheme, the utility model has following beneficial effect:

Milling machine digital-control processing system is by three driven by servomotor, the servomotor controlling Y-axis is placed on lathe spindle, be used for controlling the rotation (controlling the corner of main shaft with the corner of unit pulse) of main shaft, X-axis Serve Motor Control lathe saddle X-motion, Z axis Serve Motor Control lathe saddle Z-motion, main shaft rotates and knife rest, is because they are all the same interpolation relations adopted, can simultaneously precision maneuver.It just not Digit Control Machine Tool get on the bus screw advancement to the acceleration of mechanism or cutting thread after the deceleration working angles of feed mechanism, the standard before screw thread process can being realized easily enter with screw thread process after standard move back.Realize main shaft to rotate with the synchronized relation of knife rest feeding to meet screw processing requirement.So, transform by CNC milling machine system the processing that common round car can meet this kind of spiral.By the Economic analysis to engine lathe---the standard determined opens the enforcement demonstration that standard stops screw processing scheme, solves the technical barrier in this Product processing.This product is produced by hundreds of thousands and be also demonstrate that its feasibility---can product quality be ensured, the requirement of batch production can be met, alleviate operator's labour intensity dramatically, cutting-tool's used life is improved, reduce the cost of charp tool, reach the object of expection, due to its standard that can realize when turning spiral open, standard stops and when processing spiral, there is comparatively high manufacturing accuracy, so to processing that is without a head, the little spatially spiral of anury, guarantee ability is strong, and is widely used on other products.

Accompanying drawing explanation

Fig. 1 is the structural representation of the military fight pistol of WQ230;

Fig. 2 a, Fig. 2 b, Fig. 2 c are gunlock and gun barrel design of part process schematic representation;

Fig. 3 be feed mechanism before numerically controlled lathe, laggard give mechanism kinematic schematic diagram;

Fig. 4 is structural representation of the present utility model;

Fig. 5 a is handpiece structure schematic diagram;

Fig. 5 b is joint nested structure schematic diagram;

Fig. 5 c is the C-C schematic diagram of Fig. 5 b.

Reference numeral

In accompanying drawing, 1 is gunlock, and 2 is gun barrel, and 3 is knife rest, and 4 is X-axis servomotor, and 5 is Y-axis servomotor, and 6 is Z axis servomotor, and 7 is helicoid.

Detailed description of the invention

See Fig. 4, be a kind of preferred embodiment of screw processing equipment, this process equipment is for processing gunlock locking helical.Comprise lathe, in the present embodiment, described lathe is engine lathe.Described lathe has knife rest 3, main shaft, also comprise the X-axis servomotor 4 of milling machine digital-control processing system, Y-axis servomotor 5, Z axis servomotor 6, described X-axis servomotor 4, Y-axis servomotor 5, Z axis servomotor 6 are installed on lathe, described X-axis servomotor 4 controls lathe saddle 3X axially-movable, described Z axis servomotor 6 controls lathe saddle 3Z axially-movable, described Y-axis servomotor 5 controls main shaft and rotates, controlled the corner of main shaft by the corner of the unit pulse of Y-axis servomotor 5, realize main shaft and rotate the synchronized relation with knife rest 3 feeding.The servomotor of the Y of milling machine digital-control processing system is placed on lathe spindle or dividing head, the standard before screw thread process can being realized easily enter with screw thread process after standard move back or the numerical control scale-division of dividing head.

See Fig. 5 a, Fig. 5 b, Fig. 5 c, helicoid starting point checks on φ 29.2 circle, the pitch of helicoid is the right-handed thread of 4mm, this screw processing equipment successfully meets the processing of the locking helical of WQ111 product 9.04-6 head and 9.02-37 joint cover, and the processing difficulties of this two part is resolved.Workman achieves people's multi-machine operation, and labour intensity obtains and greatly reduces, and product quality obtains larger lifting.

What finally illustrate is, above preferred embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model by above preferred embodiment, but those skilled in the art are to be understood that, various change can be made to it in the form and details, and not depart from the utility model claims limited range.

Claims

1. a screw processing equipment, comprise lathe, described lathe has knife rest, main shaft, it is characterized in that: the X-axis servomotor also comprising milling machine digital-control processing system, Y-axis servomotor, Z axis servomotor, described X-axis servomotor, Y-axis servomotor, Z axis servomotor is installed on lathe, described X-axis Serve Motor Control lathe saddle X-motion, described Z axis Serve Motor Control lathe saddle Z-motion, described Y-axis Serve Motor Control main shaft rotates, the corner of main shaft is controlled by the corner of the unit pulse of Y-axis servomotor, realize main shaft and rotate the synchronized relation with knife rest feeding.

2. screw processing equipment according to claim 1, is characterized in that: this process equipment is for processing gunlock locking helical.

3. screw processing equipment according to claim 1, is characterized in that: described lathe is engine lathe.