CN2705249Y

CN2705249Y - Automatic material feeding mechanism for lathe

Info

Publication number: CN2705249Y
Application number: CN 200320117195
Authority: CN
Inventors: 李耀群
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-10-18
Filing date: 2003-10-18
Publication date: 2005-06-22
Anticipated expiration: 2013-10-18

Abstract

A kind of lathe automatic feed mechanism, comprise front support bracket, the rear support bracket that is connected with lathe and be positioned at deflector chute on the forward and backward bearing support, on supporting before the front end of deflector chute is arranged on, the rear support bracket support is latter half of bin, front support bracket is provided with the motor cabinet that motor and deflector chute front end are installed on it, tail end at deflector chute is provided with the chain wheel support, motor is connected by chain with head sprocket, be provided with feeding rod in the deflector chute, be installed with the chain connecting plate that is fixed on the chain at the afterbody of feeding rod.The utility model adopts that stepper motor is used as power, chain drive, the supporting of fusiformis feeding rod and computer instruction control feeding, makes that the feeding process is freely suitable, steady, frictional force is little, the location high accuracy, and noise is low; Each part life is long, and repair rate is low; Reduced lathe accessories,, further simplified structure not changing under the lathe function; Simple in structure, easy to operate.

Description

A kind of lathe automatic feed mechanism

Technical field

The utility model relates to a kind of lathe automatic feed mechanism, be meant especially a kind of and numerically controlled lathe supporting, small dimension wood rod material automatic feeding mechanism.

Background technology

The supporting small dimension wood rod material automatic feeding mechanism of existing and lathe mostly is Weight type, its version is gate-type, comprise cutting knife, feeding chuck, be positioned at being used on the chuck central axis and control the contact, weight, feeding push rod of bar processing length, bin front support bracket, the rear support bracket that is connected with lathe, be shelved with deflector chute on two bearing supports, the small dimension wood bar is arranged in deflector chute in the process.Its course of work is as follows: cutting knife is with Cutting stick---the feeding chuck unclamps---push rod feeding under the gravity effect of weight---deliver to the contact of control processing length---contact send signal make the feeding chuck clamp---cutter is processed according to setting program---cutting knife is with Cutting stick, so circulation, can not run into the contact until the bar length of sending, lathe sends end of work signal, pull out push rod, work on after sending new bar again to.In this structure, pushing bar, to advance to processed position be by by being that the delivery device of power is realized with weight potential energy.Because the power that acts on delivery device and the bar of weight is nonadjustable, so the power that acts on the bar is both inhomogeneous also discontinuous, the discontinuous variation of power causes vibration big, and the feeding degree of accuracy that puts in place is low and unstable; Noise is big, and vibration is big, influences main shaft processing work precision; Feeding structure member service life is long and machine tool accessories is many.

Summary of the invention

The purpose of this utility model provides the automatic feeding device for lathe that a kind of bar is stressed evenly, charging puts degree of accuracy height in place, the bar vibration is little.

Designed a kind of lathe automatic feed mechanism according to above-mentioned purpose, comprise the front support bracket, the rear support bracket that are connected with lathe, forward and backward bearing support is provided with the deflector chute that is supported, on supporting before the front end of deflector chute is arranged on, the rear support bracket support is latter half of bin, its front support bracket is provided with the motor cabinet that motor and deflector chute front end are installed on it, tail end at deflector chute is provided with the chain wheel support, be equipped with from sprocket wheel on the chain wheel support, head sprocket is installed on the motor shaft, and principal and subordinate's sprocket wheel connects motor by chain and is connected by chain with head sprocket; Be provided with feeding rod in the deflector chute, be installed with the chain connecting plate that is fixed on the chain at the afterbody of feeding rod.

Described front support bracket is the arm shape of stretching in the inclination, the lower end is connected with lathe body, the upper end be provided with one with the through hole of motor cabinet bolster matched in clearance, be provided with a T type that inserts through hole at the place suitable for reading of this through hole and lock adjusting nut, bolster passes T type locking adjusting nut and through hole and by the fastening screw location of passing through-hole wall, bolster is provided with the keyway that is complementary with trip bolt.Pass the through hole of fan-shaped adjusting support one end in the upper end of this motor cabinet bolster and cooperate with this via clearance, fan-shaped adjusting support is by the trip bolt location of passing through-hole wall, and bolster is provided with the keyway that is complementary with trip bolt.Wherein, L moulding mixture frame is installed on the fan-shaped adjusting support, motor is fixedly mounted on the top of bin, has the arcuation groove that is used to install deflector chute on the base plate of bin.Motor shaft is provided with head sprocket, and chain one end is enclosed within on the head sprocket, the other end be enclosed within on the tail end chain wheel support of deflector chute from sprocket wheel, the rear portion of deflector chute is subjected to the support of rear support bracket, also is provided with the chain pre-tightening apparatus on rear support bracket.

The upper end of described rear support bracket is plugged among the adjusting lock nut who adjusts sleeve and lower port thereof, also be provided with the pillar that is matched in clearance with this sleeve and passes this sleeve in adjusting sleeve, pillar is located by the trip bolt that passes barrel with adjusting between sleeve.Top at this pillar is equipped with guide groove material bearing support and chain pre-tightening apparatus from bottom to up successively, and the chain pre-tightening apparatus comprises and be enclosed within and be fixed on pretension sprocket holder on the pillar by trip bolt that the pretension sprocket wheel is installed on the axle that is fixed in the pretension sprocket holder.

Described deflector chute comprises the outer guide groove of steel and the interior guide groove of being made by high-abrasive material, inside and outside guide groove is the hollow pipe, one side pipe wall of outer guide groove by with radial parallel cut away and make it to have an opening equably, then leave an even notch that does not seal on the tube wall of interior guide groove, the notch of interior guide groove is complementary with the opening of outer guide groove, and the cross section of the two interior guide groove of confession location was the location-plate of L type about the guide groove opening part was provided with outside, and location-plate is screwed guide groove mouth place outside.Be positioned at the feeding rod of deflector chute, the afterbody of feeding rod is fixedlyed connected with the chain connecting plate that the upper end is fixed on the chain, is distributed with the fusiformis supporting on the feeding rod body of rod equably, and fusiformis bar front end is equipped with clamping device, the supporting of this fusiformis is fixed into one with feeding rod, and between interior deflector chute movingly.And clamping device comprise fixedly connected with the feeding rod front end and and interior deflector chute between movingly bearing outside, adorn in this cover a plurality of with mandrel hold, running-on is provided with locking nut, bearing cavity is installed with the material folding rotating shaft, and material folding rotating shaft front end is equipped with the feeding chuck by nut.

The utility model compared with prior art adopts that stepper motor is used as power, chain drive, the supporting of fusiformis feeding rod and computer instruction control feeding, makes that the feeding process is freely suitable, steady, frictional force is little, the location high accuracy, and noise is low; Each part life is long, and repair rate is low; Reduced lathe accessories, only need internal diameter be 6 and the guide groove of 32 two kind of specification just can finish the feeding work that diameter is 2～32 bars; Not changing under the lathe function, further simplified structure; Simple in structure, easy to operate.

Description of drawings

Accompanying drawing 1 is that assembling complete section master of the present utility model looks schematic diagram; Accompanying drawing 2 (1), (2) are that the part amplification master of accompanying drawing 1 front support bracket and motor part looks, schematic side view; Accompanying drawing 3 (1), (2) are that the part amplification master of accompanying drawing 1 rear support bracket and chain pre-tightening apparatus part looks, schematic side view; Accompanying drawing 4 (1), (2) are that the complete section master of accompanying drawing 1 deflector chute looks schematic diagram and complete section schematic side view; Accompanying drawing 5 is that the complete section master of accompanying drawing 1 feeding rod looks schematic diagram.

Specific embodiments

Fig. 1 gives basic structure and the structure shown the utility model one embodiment, and its main body comprises front support bracket assembly, rear support bracket assembly and the deflector chute assembly that is supported, and the utility model is described in further detail below with reference to Fig. 1 and other view.

The front support bracket assembly comprises the front support bracket 1 that is to tilt last semi-girder shape, and the motor cabinet assembly is installed on this bearing support, and the lower end is connected with lathe body.The motor cabinet assembly comprises the bolster 3 that is installed in the through hole on the front support bracket, one T type locking adjusting nut 5 is arranged on the mouth of this through hole, bolster passes T type locking adjusting nut and through hole and by trip bolt 4 location of passing through-hole wall, has the keyway that matches with trip bolt on bolster.Fan-shaped adjusting support 37 is installed in the upper end of this bolster, and by the trip bolt location, bolster is provided with the keyway that matches with trip bolt each other.The L moulding mixture frame of fixing with bolt 42 46 is installed on fan-shaped adjusting support, and motor 36 is fixedly mounted on the top of bin, has the arcuation groove that is used to install the deflector chute assembly on the base plate of bin.Motor shaft is provided with head sprocket 45, and chain one end is enclosed within on the head sprocket, the other end be enclosed within on the tail end chain wheel support 35 of deflector chute from sprocket wheel, the rear portion of deflector chute is subjected to the support of rear support bracket, also is provided with the chain pre-tightening apparatus on rear support bracket.

The rear support bracket assembly comprise base and plug-in mounting and be fixed on pole 49 on the base 48, the upper end of this pole is inserted among the adjusting lock nut 25 who adjusts sleeve 26 and lower port thereof, have one to be matched in clearance with this sleeve and to pass the pillar 27 of this sleeve in adjusting sleeve, pillar is located by the trip bolt that passes barrel with adjusting between sleeve.Top at this pillar is equipped with guide groove material bearing support 28 and chain pre-tightening apparatus from bottom to up successively, the chain pre-tightening apparatus comprises and is enclosed within and is fixed on pretension sprocket holder 29 on the pillar by trip bolt that pretension sprocket wheel 30 is installed on the axle 32 that is fixed in the pretension sprocket holder.

Be subjected to the deflector chute of forward and backward branching bolster supporting to comprise the outer guide groove 34 of steel and the interior guide groove of making by high-abrasive material 33, inside and outside guide groove is the hollow pipe, one side pipe wall of outer guide groove by with radial parallel cut away and make it to have an opening equably, then leave an even notch that does not seal on the tube wall of interior guide groove, the notch of interior guide groove is complementary with the opening of outer guide groove, and the cross section of the two interior guide groove of confession location was the location-plate 41 of L type about the guide groove opening part was provided with outside, and location-plate is screwed guide groove mouth place outside.And the afterbody that is positioned at the feeding rod of deflector chute is fixedlyed connected with the chain connecting plate 21 that the upper end is fixed on the chain, is distributed with fusiformis supporting 20 on feeding rod 18 bodies of rod equably, and fusiformis bar front end is equipped with clamping device.This clamping device comprises the bearing outside 16 of fixedlying connected with the feeding rod front end, adorn in this cover and a plurality ofly hold 13, be generally 2～6, be provided with locking nut 12 at running-on with mandrel, be fixed with material folding rotating shaft 10 in the bearing, material folding rotating shaft front end is equipped with feeding chuck 9 by nut 11.

In process, the action of pay-off is exactly feeding and reloads.Its feeding process is, the lathe cutoff tool with Cutting stick after, the collet of lathe unclamps, simultaneously the stepper motor of feed mechanism puts in place and stops operating by the instruction feeding of computer, each cutter is cut off by cutting off tool at last by instruction works after the clamp on the lathe.So move in circles, contact with travel switch on the fan-shaped adjusting support until the connecting plate on the chain, the feeding process stops lathe and sends end of work signal, enters next step the program of reloading.

When reloading, anchor clamps on the lathe unclamp, stepper motor resets, feeding rod retreats to deflector chute and headstock boundary, unclamp L type location-plate, take out the material tail by fan-shaped adjusting support, bar is packed into pushes in the deflector chute behind the feeding chuck of feeding rod again, tighten L type location-plate lock-screw, enter the feeding program.During feeding,, make feeding agile, steady because feeding rod has reduced coefficient of friction significantly with adopting the fusiformis supporting; Add man-hour, bearing and lathe spindle rotate simultaneously, have effectively avoided the bump of material tail to deflector chute, and the feeding noise is greatly reduced, and each corresponding part life obtains prolonging, and can cooperate feeding, the material returned of stepper motor like clockwork.

Claims

1, a kind of lathe automatic feed mechanism, comprise the front support bracket (1), the rear support bracket that are connected with lathe, forward and backward bearing support is provided with the deflector chute that is supported, and supports before the front end of deflector chute is arranged on, the rear support bracket support is latter half of bin, it is characterized in that

Front support bracket is provided with on it motor cabinet that motor (36) and deflector chute front end are installed, and is provided with chain wheel support (35) at the tail end of deflector chute, is equipped with from sprocket wheel on the chain wheel support, and head sprocket is installed on the motor shaft, and principal and subordinate's sprocket wheel is connected by chain (6);

Be provided with feeding rod (18) in the deflector chute, be installed with the chain connecting plate (23) that is fixed on the chain at the afterbody of feeding rod.

2, feed mechanism according to claim 1, it is characterized in that described front support bracket is the arm shape of stretching in the inclination, the lower end is connected with lathe body, the upper end be provided with one with the through hole of motor cabinet bolster (3) matched in clearance, be provided with a T type that inserts through hole at the place suitable for reading of this through hole and lock adjusting nut (5), bolster passes T type locking adjusting nut and through hole and by fastening screw (4) location of passing through-hole wall, bolster is provided with the keyway that is complementary with trip bolt.

3, feed mechanism according to claim 2, the upper end that it is characterized in that described motor cabinet bolster is passed the through hole of fan-shaped adjusting support (37) one ends and is cooperated with this via clearance, fan-shaped adjusting support is by the trip bolt location of passing through-hole wall, and bolster is provided with the keyway that is complementary with trip bolt.

4, feed mechanism according to claim 3 is characterized in that on the described fan-shaped adjusting support L moulding mixture frame (46) being installed, and motor is fixedly mounted on the top of bin, has the arcuation groove that is used to install deflector chute on the base plate of bin.

5, according to claim 2 or 3 or 4 described feed mechanisms, it is characterized in that motor shaft is provided with head sprocket, chain one end is enclosed within on the head sprocket, the other end be enclosed within on the tail end chain wheel support of deflector chute from sprocket wheel, the rear portion of deflector chute is subjected to the support of rear support bracket, also is provided with the chain pre-tightening apparatus on rear support bracket.

6, feed mechanism according to claim 5, the upper end that it is characterized in that described rear support bracket is plugged among the adjusting lock nut (25) who adjusts sleeve (26) and lower port thereof, also be provided with the pillar (27) that is matched in clearance with this sleeve and passes this sleeve in adjusting sleeve, pillar is located by the trip bolt that passes barrel with adjusting between sleeve.

7, feed mechanism according to claim 6, it is characterized in that guide groove material bearing support (28) and chain pre-tightening apparatus being installed from bottom to up successively on the top of described pillar, the chain pre-tightening apparatus comprises and is enclosed within and is fixed on pretension sprocket holder (29) on the pillar by trip bolt that pretension sprocket wheel (30) is installed on the axle (32) that is fixed in the pretension sprocket holder.

8, according to claim 2 or 3 or 4 described feed mechanisms, it is characterized in that described deflector chute comprises the outer guide groove (34) of steel and the interior guide groove of being made by high-abrasive material (33), in, outer guide groove is the hollow pipe, one side pipe wall of outer guide groove by with radial parallel cut away and make it to have an opening equably, then leave an even notch that does not seal on the tube wall of interior guide groove, the notch of interior guide groove is complementary with the opening of outer guide groove, and the cross section of the two interior guide groove of confession location was the location-plate (41) of L type about the guide groove opening part was provided with outside, and location-plate is screwed guide groove mouth place outside.

9, feed mechanism according to claim 8, it is characterized in that being positioned at the feeding rod of deflector chute, the afterbody of feeding rod is fixedlyed connected with the chain connecting plate that the upper end is fixed on the chain, be distributed with fusiformis supporting (20) on feeding rod (18) body of rod equably, fusiformis bar front end is equipped with clamping device.

10, feed mechanism according to claim 9 is characterized in that the supporting of described fusiformis is fixed into one with feeding rod, and between interior deflector chute movingly.

11, feed mechanism according to claim 9, it is characterized in that described clamping device comprise fixedly connected with the feeding rod front end and and interior deflector chute between movingly bearing outside (16), adorn in this cover a plurality of with mandrel hold (13), running-on is provided with locking nut (12), bearing cavity is installed with material folding rotating shaft (10), and material folding rotating shaft front end is equipped with feeding chuck (9) by nut (11).