CN214920533U

CN214920533U - Discharging device of horizontal numerical control automatic lathe for double machining positions of shaft workpieces

Info

Publication number: CN214920533U
Application number: CN202120480916.7U
Authority: CN
Inventors: 张承琪; 王龙; 吴学亮
Original assignee: Shandong Hengxing Heavy Technology Co ltd
Current assignee: Shandong Hengxing Heavy Technology Co ltd
Priority date: 2021-03-05
Filing date: 2021-03-05
Publication date: 2021-11-30
Anticipated expiration: 2031-03-05

Abstract

The discharging device comprises a V-shaped discharging support groove capable of moving left and right, and a discharging cylinder for supporting and controlling the discharging support groove to move left and right, wherein the edge of the discharging support groove facing the discharging direction is connected and supported on a push rod of the discharging cylinder, a bulge is arranged at the position of the other side of the discharging support groove, which is inclined to the front end, and a contact structure which corresponds to the bulge and is fixed on a lathe bed is arranged. Under the circumstances that can realize automatic feeding, automatic cutout, can also automatic unloading, both ends that can the simultaneous processing axle, cutting efficiency is more than the twice of ordinary axle machine tool, and people's average shaft class work piece machining efficiency improves more than several times.

Description

Discharging device of horizontal numerical control automatic lathe for double machining positions of shaft workpieces

Technical Field

The utility model relates to a lathe specifically is applied to the automatic discharge device on the horizontal numerical control automatic lathe of a two processing positions of axle type work piece, and this kind of lathe can be used to a blank axle type work piece both ends automatic processing simultaneously.

Background

With the socialized division and refinement of the machining industry, shaft products in the life such as electromechanics, metallurgy, ships, automobiles, science and technology, medical treatment, agriculture, animal husbandry, fishery and the like are produced; the processing of conventional shaft products such as gear transmission shafts, conveyor belt carrier roller shafts, positioning pin shafts and the like is generally handed to specialized shaft processing factories.

At present, machine tools for machining shaft products in the market are horizontal lathes, the number of the horizontal lathes is three, one is a common horizontal lathe, the other is a horizontal numerically controlled lathe, and the other is a numerically controlled lathe externally provided with a discharging device on the basis of the horizontal numerically controlled lathe. However, in all of the three types of machine tools, one end of the shaft is clamped firstly, one end of the shaft is machined firstly by using one set of cutting device, and then the other end is machined in reverse, so that the machining efficiency is not high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a be applied to automatic discharge device on two horizontal numerical control automatic lathe of processing position of axle type work piece, overcome the difficult problem that can not simultaneous processing to an axle type work piece both ends among the prior art, can be with axle both ends simultaneous processing, and automatic feeding, location clamp are tight, automatic discharge has changed the technological mode of traditional processing axle type product for axle processing production efficiency improves greatly, has increased product quality's stability, has simplified loaded down with trivial details operation flow.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a double-processing-position horizontal numerical control automatic lathe discharging device for shaft workpieces comprises a feeding device, a cutting device, a discharging device and a PLC (programmable logic controller) numerical control system, wherein the cutting device comprises a front-mounted pneumatic permeable annular chuck, the chuck can clamp the middle part of the shaft workpieces, the chuck is connected to a lathe body through a chuck bearing sleeve, a driven transmission gear is arranged on the chuck and can be driven to rotate by a motor, a tool rest which is driven by a servo motor through a ball screw and can transversely and longitudinally move is arranged on the axial center line of the chuck in the extending direction of two sides, and a cutting tool clamp is arranged on the tool rest; the automatic feeding, the automatic clamping and loosening of the workpiece, the automatic cutting and the automatic discharging are controlled by the PLC numerical control system, the discharging device is arranged on the extension direction of the other side of the central axis of the chuck and is opposite to the feeding device, the discharging device comprises a V-shaped discharging support groove capable of moving left and right and a discharging cylinder for supporting and controlling the discharging support groove to move left and right, the edge of the discharging support groove facing to the discharging direction is connected and supported on a push rod of the discharging cylinder, a bulge is arranged at the position of the other side of the discharging support groove, which is inclined to the front end, and a contact structure which corresponds to the bulge and is fixed on the lathe bed is arranged.

The contact structure is a roller connected with a support rod fixed on the bed body, and the bulge is a wedge iron fixed on the side edge of the discharge bracket.

Due to the adoption of the structural design, the machine tool can realize automatic feeding and automatic cutting, can also automatically discharge, can simultaneously process two end parts of the shaft, has the cutting efficiency more than two times that of a common shaft processing machine tool, even can be used for seeing a plurality of shaft processing lathes, and can improve the processing efficiency of shaft workpieces of the equal-number of people by more than several times.

Drawings

FIG. 1 is an assembled perspective view of the present invention;

FIG. 2 is an enlarged perspective view of the loading portion of FIG. 1;

FIG. 3 is a front view corresponding to FIG. 2;

FIG. 4 is a cross-sectional view taken along line I-I of FIG. 3;

FIG. 5 is a corresponding enlarged perspective view of the discharge portion of FIG. 1;

FIG. 6 is a front view corresponding to FIG. 5;

fig. 7 is a left side view corresponding to fig. 6.

In the figure, 1, a lathe bed, 2, a base, 3, a material ejecting cylinder, 4, a material ejecting part, 410, a workpiece top plate, 420, a roller path, 430, a material plate, 5, a material loading device, 510, a movable bracket, 520, a workpiece conveying cylinder, 531, a material feeding cylinder, 6, a chuck, 7, a motor, 8, a positioning device, 9, a material unloading device, 910, an material unloading cylinder, 920, a material unloading bracket, 950, a material unloading bracket, 10, a workpiece, 11, a tool rest a, 12 and a tool rest b.

Detailed Description

A double-processing-position horizontal numerical control automatic lathe for shaft workpieces comprises a feeding device 5, a cutting device, a discharging device 9 and a PLC (programmable logic controller) numerical control system, wherein the cutting device comprises a front pneumatic permeable annular chuck 6, the chuck 6 is connected to a lathe bed 1 through a chuck bearing kit and a chuck shell, and the chuck 6 can clamp the middle part of the shaft workpiece, so that the processing parts at two end parts of the shaft workpiece are exposed in cutting processing areas of the chuck shaft central line in the directions of extension lines at two sides; a driven transmission gear with overlapped shaft center lines is arranged on the chuck and is driven by a motor to rotate; a tool rest a11 and a tool rest b12 which are driven by two servo motors through a ball screw and can move transversely and longitudinally are respectively arranged below the cutting machining area, and cutting tool clamps are arranged on the tool rest a11 and the tool rest b 12; the PLC numerical control system controls automatic feeding, automatic clamping and loosening of workpieces, automatic cutting and automatic discharging.

The feeding device is arranged on one side of the extending direction of the central line of the chuck shaft, a material plate 430, a workpiece top plate 410 driven by a material ejecting cylinder, a workpiece raceway 420 and a workpiece moving bracket 510 driven by a workpiece conveying cylinder are sequentially arranged from back to front, the upper part of the outer side end of the bracket is also provided with a feeding cylinder 531 capable of being pushed towards the chuck direction, and the feeding cylinder is matched with a positioning device arranged on the other side of the chuck to push shaft type workpieces to reach a clamping station.

The movable bracket 510 is a V-shaped bracket, and the bottom of the movable bracket is supported and connected to a push rod of the workpiece conveying cylinder.

The front end and the rear end of the flitch are provided with a height difference which is enough to enable the shaft workpiece to roll forwards by gravity, a lifting shoulder is formed between the front end of the flitch and the rear end of the raceway of the shaft workpiece, the workpiece top plate is arranged at the hollow part of the flitch close to the lifting shoulder, the shape and the size of the workpiece top plate are limited to lifting one shaft workpiece at a time, and when the shaft workpiece is lifted to the top of the lifting shoulder, the shaft workpiece can automatically move along the raceway 420 to the bracket to slide down by the action of gravity.

More than two workpiece top plates are symmetrically arranged, and the lower parts of the workpiece top plates are respectively connected to corresponding synchronous material ejecting cylinder push rods.

The movable bracket supporting base is provided with a structure for manually adjusting the height of the bracket support.

The unloading device 9 is arranged in the extending direction of the other side of the central axis of the chuck, is opposite to the loading device, and comprises a V-shaped unloading bracket 920 capable of moving left and right, an unloading cylinder 910 for supporting and controlling the unloading bracket to move left and right, the edge part of the unloading bracket facing the unloading direction is connected and supported on a push rod of the unloading cylinder, a bulge is arranged at the position of the other side of the unloading bracket 920 deviating from the front end, and a contact structure which is fixed on the base and corresponds to the bulge is arranged, when the unloading bracket reaches the unloading position, the contact structure is matched with the bulge to ensure that the unloading bracket overturns towards the unloading direction so as to ensure that the shaft-type workpiece slides onto the unloading plate by gravity; the contact structure is a roller connected with a support rod fixed on the base, and the protrusion is a wedge fixed on the side edge of the discharge bracket.

In the processing process, shaft processing blank workpieces are transversely stacked at the rear part of a material plate 430, the workpieces roll forwards under the action of gravity, the workpieces close to the front end of the material plate are sequentially abutted together, the workpiece at the foremost end is abutted against a lifting shoulder, a workpiece top plate at the front end part of the material plate moves upwards to just lift the foremost workpiece 10, the workpieces slide into a moving bracket 510V-shaped groove along a rolling way 420 after rising to the highest point, the workpiece is carried by the V-shaped groove and is transversely dragged to move from left to right by a workpiece conveying cylinder 520, the workpiece top plate is reset downwards after triggering stroke limiting, the workpieces are pushed by a feeding cylinder to push a pneumatic chuck 6 from left to right in the feeding V-shaped groove, when the workpieces pass through the center of the pneumatic chuck, the feeding cylinder stops after completing a first contact switch, the workpiece limiting device moves downwards to be in place, the feeding cylinder 531 again pushes the workpieces to move from left to right, after contacting the workpiece positioning device 8 on the right side of the air chuck, the air chuck clamps the workpiece. The workpiece conveying cylinder and the feeding cylinder move leftwards and return to the original positions, the workpiece positioning device rises upwards, and the workpiece top plate lifts the standby workpiece upwards again. And when the spare workpiece slides into the feeding V-shaped groove. The motor drives the air chuck to rotate under the driving of the system. Meanwhile, the system can drive two tool rests carried by two groups of XY-axis servo motors on the left side and the right side of the pneumatic chuck to move. Each tool rest is provided with a plurality of tool positions, and the required process cutting is automatically carried out on two ends (outer circle and inner hole) of the workpiece. After the machining is finished, the cutter position is restored to the original position, and a line of the workpiece running transversely is avoided. After the pneumatic chuck loosens the machined workpiece for three seconds, the right unloading bracket 920 transversely moves to the pneumatic chuck from right to left to prepare for receiving materials. After two seconds, the left movable bracket 510 carries the spare workpiece to move from left to right, after the trigger stroke is limited, the workpiece top plate is reset downwards, the feeding cylinder pushes the spare workpiece to eject the machined workpiece from left to right from the pneumatic chuck, and the added workpiece slides into the discharging bracket 920 of the discharging cylinder; and the feeding cylinder stops after the first contact switch is completed, and the workpiece limiting device moves downwards to be in place. After two seconds, the feeding cylinder again pushes the spare workpiece to move from left to right. Meanwhile, the unloading bracket drags the added workpiece and moves from left to right to the rightmost end of the unloading bracket 920, and the rightmost end is provided with an inclined overturning block wedge iron. The bracket of unloading can unload the layer board 950 upset slope right the place ahead after contacting the protruding gyro wheel of upset piece, and the work piece that has processed rolls to unloading layer board 950 along with the slope of the bracket of unloading, accomplishes the processing, and remaining work piece also can be by this order cycle and processing in proper order, and the work piece is all processed and is accomplished.

Claims

1. A double-processing-position horizontal numerical control automatic lathe discharging device for shaft workpieces comprises a feeding device, a cutting device, a discharging device and a PLC (programmable logic controller) numerical control system, wherein the cutting device comprises a front-mounted pneumatic permeable annular chuck, the chuck can clamp the middle part of the shaft workpieces, the chuck is connected to a lathe body through a chuck bearing sleeve, a driven transmission gear is arranged on the chuck and is driven to rotate by a motor, a tool rest which is driven by a servo motor through a ball screw and can transversely and longitudinally move is respectively arranged on the axial center line of the chuck in the extending direction of two sides, and a cutting tool clamp is arranged on the tool rest; the automatic feeding, automatic clamping and loosening, automatic cutting and automatic discharging device is characterized in that the discharging device is arranged on the extension direction of the other side of the central axis of the chuck and is opposite to the feeding device and comprises a V-shaped discharging support groove capable of moving left and right and a discharging cylinder for supporting and controlling the discharging support groove to move left and right, the edge of the discharging support groove facing to the discharging direction is connected and supported on a push rod of the discharging cylinder in a shaft mode, a bulge is arranged at the position, which is inclined to the front end, of the other side of the discharging support groove, and a contact structure which corresponds to the bulge and is fixed on a lathe bed is arranged.

2. The discharging device of a horizontal numerically controlled automatic lathe for double processing positions of shaft workpieces as claimed in claim 1, wherein said contact structure is a roller connected to a support rod fixed on the lathe bed, and said protrusion is a wedge fixed on the side of said discharging bracket.