CN202200093U - Automatic feeding device of machine tool - Google Patents
Automatic feeding device of machine tool Download PDFInfo
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- CN202200093U CN202200093U CN2011202273749U CN201120227374U CN202200093U CN 202200093 U CN202200093 U CN 202200093U CN 2011202273749 U CN2011202273749 U CN 2011202273749U CN 201120227374 U CN201120227374 U CN 201120227374U CN 202200093 U CN202200093 U CN 202200093U
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Abstract
Provided is an automatic feeding device of a machine tool, which is suitable for disc type or shaft type parts whose cross sections are circular or polygon-shaped. A workpiece storage mechanism is a vertical tri-section Z-shaped folding tilted face track. A workpiece lifting mechanism, a workpiece supporting mechanism, a workpiece installing mechanism and a workpiece fixing mechanism are disposed between the lower end of a material warehouse and a feeding track. The workpiece fixing mechanism is connected to a vertical cylinder piston rod of the workpiece lifting mechanism. A horizontal cylinder is disposed on the workpiece installing mechanism. A workpiece detection device is disposed on the feeding track and the cylinder. The integral mechanism is fixed on an installing plate through left and right racks of the material warehouse and a installing plate workpiece lifting rack, and then is installed on the machine tool for usage. The workpiece in the workpiece storage mechanism enters the workpiece supporting mechanism through lifting. Workpiece fetching and the work between the workpiece and the machine tool are completed through the up-and-down movement of the lifting mechanism. The circuit designed based on a control program is communicated with a power supply, a program circuit output terminal and an interface of a machine tool control center.
Description
Technical field
The utility model relates to machine tool auxiliary equipment, and being specially a kind of suitable cross section is circle or polygon) automatic charging device.
Background technology
In today that human cost improves day by day, Machinery Tool Automation becomes development trend.Automatic feed mechanism can replace artificial material loading, and is simple in structure, compact, also flexible more, reliable during use; When structure space compactness, processing workpiece in enormous quantities, can use, the application of this mechanism can realize Digit Control Machine Tool automation processing, saves labour turnover, improves working (machining) efficiency and reliability, and therefore use has more special advantages on producing in enormous quantities.
Summary of the invention
The purpose of the utility model is to provide a kind of lathe automatic charging device, is applicable to that the cross section is circular or polygonal dish class and axial workpiece, and compact overall structure, simple, flexible is saved the space, and cost is low.
A kind of lathe automatic charging device; Comprise the control program module that is communicated with machine tool control system, the circuit of distribution senser element; It is characterized in that workpiece storage mechanism is vertical three sections Z font bending inclined-plane tracks; Between the straight flange of material lower end, storehouse track ends and material storehouse feeding track the workpiece hoisting mechanism that is driven by vertical cylinder is installed; Terminal workpiece support mechanism and the workpiece installing mechanism that float design is installed of workpiece hoisting mechanism; The workpiece fixed mechanism is installed in workpiece support mechanism one end, and the workpiece installing mechanism is connected on the vertical cylinder piston rod and vertical guide rod in the workpiece hoisting mechanism through connecting plate, and horizontal air cylinder and horizontal guide bearing block are installed on the workpiece installing mechanism connecting plate; On feeding track and cylinder, Workpiece detecting device is set; Whole automatic feed mechanism promotes support through material left and right support in storehouse and workpiece and is fixed on the installing plate, only needs installing plate is installed on the lathe and can uses through bolt; Workpiece in the workpiece storage mechanism gets in the workpiece support mechanism through the workpiece hoisting mechanism; The moving up and down of hoisting mechanism accomplish to extract workpiece and workpiece and machine tool chief axis to heart work; Horizontal air cylinder drives workpiece support mechanism and does horizontal movement, by the workpiece installing mechanism workpiece in the workpiece support mechanism is sent into machine tool chief axis; On each operation part, electric sensor is set, and presses the control program design circuit, this circuit communicates with the interface at Machine-Tool Control center through power supply, program circuit output port.
The invention has the beneficial effects as follows:
1, the design of Z font is adopted in the workpiece storage space among the present invention, and compact conformation is saved the space; And Z font track corner adopts particular design, effectively avoids the dead point of the operation of workpiece in track, not only satisfies the dish class and the axial workpiece freely-movable in orbit of circular cross-section; Can satisfy simultaneously the dish class and the axle type part motion in orbit of polygonal cross-section; Workpiece memory space and track space are adjustable, and versatility is good, can satisfy the part of different size.Once deposit a large amount of workpiece in the workpiece storage mechanism, supply automatic charging device that workpiece is constantly sent into workpiece in the machine tool chief axis.
2, material loading process of the present invention adopts workpiece hoisting mechanism and workpiece installing mechanism; The workpiece hoisting mechanism guarantees that effectively each is sent into a workpiece in the workpiece support device; In promoting the cylinder reciprocating motion, accomplish simultaneously and get material and part and main shaft heart work; Once two actions are accomplished in motion, have improved efficient greatly, also make whole automatic charging device compact more simultaneously.The workpiece installing mechanism is fixed on the workpiece hoisting mechanism; After workpiece and machine tool chief axis are to the heart; Workpiece is sent into machine tool chief axis by the workpiece installing mechanism, and the workpiece of the workpiece pressing plate in the workpiece fixed mechanism in can the workpiece pressing supporting mechanism prevents workpiece unexpected landing in installation process.Installing mechanism and machine tool chief axis center are fixed during each material loading, guarantee the reliability of whole feed mechanism.
3, workpiece support mechanism adopts float design among the present invention, and two gripper shoes connect through spring, and distance is adjustable; Workpiece is packed into, and two gripper shoes leave big spacing before the main shaft, and the supporting workpiece two ends make and support steadily; Spring in the workpiece installation process between two gripper shoes is compressed; Spacing reduces, and workpiece one end is exposed at outside the gripper shoe, gets into main shaft.
Whether normally testing agency can detect automatic feed mechanism operation; If cylinder piston rod positional fault in the feed mechanism or workpiece successfully are not sent in the supporting mechanism by storing mechanism; Explain that all the automatic feed mechanism working condition is unusual; This control program can give a warning to machine tool control system, and autostop.
Description of drawings
Fig. 1 is the structural front view of lathe automatic charging device of the present invention;
Fig. 2 a is the left view of Fig. 1;
Fig. 2 b is the right view of Fig. 1;
Fig. 3 is the vertical view of Fig. 1;
Fig. 4 a ~ 4d is the waist-shaped hole sketch map on the material storehouse track 11 ~ 14;
Fig. 5 is the workpiece support structural scheme of mechanism;
Fig. 6 a is a workpiece fixed mechanism front view;
Fig. 6 b is a workpiece fixed mechanism left view;
Fig. 7 a1 is hydraulic electric motor and hydraulic electric motor fan control circuitry;
Fig. 7 a2 is the control circuit of contactor KM50;
Fig. 7 a3 is the oild chuck solenoid valve control circuit;
Fig. 7 b1 is an oild chuck PLC I/O output control circuit;
Fig. 7 b2 is an oild chuck PLC I/O input control circuit;
Fig. 7 c1 is a feed mechanism pneumatic operated valve control circuit;
Fig. 7 c2 is a feed mechanism PLC I/O output control circuit;
Fig. 7 c3 is the PLC I/O of a feed mechanism system input control circuit.
The specific embodiment
The design's lathe automatic charging device; Comprise the control program module that is communicated with machine tool control system, the circuit of distribution senser element; It is characterized in that workpiece storage mechanism is vertical three sections Z font bending inclined-plane tracks; Between the straight flange of material track lower end, lower end, storehouse and material storehouse feeding track the workpiece hoisting mechanism that is driven by vertical cylinder is installed; Terminal workpiece support mechanism and the horizontal air cylinder that float design is installed of material storehouse feeding track, the workpiece installing mechanism is provided with Workpiece detecting device on feeding track and cylinder between workpiece support mechanism and machine tool chief axis; Workpiece in the workpiece storage mechanism gets in the workpiece support mechanism through the workpiece hoisting mechanism; The moving up and down of hoisting mechanism accomplish to extract workpiece and workpiece and machine tool chief axis to heart work; Horizontal air cylinder drives workpiece support mechanism and does horizontal movement, by the workpiece installing mechanism workpiece in the workpiece support mechanism is sent into machine tool chief axis.Structure is as shown in Figure 1, and whole automatic feed mechanism is fixed on the installing plate 1 through material storehouse left socle 2, material storehouse right support 3 and workpiece hoisting mechanism support 4, with bolt installing plate 1 is fixed with lathe head of a bed riser and just can be used.
Workpiece storage mechanism: see Fig. 1 and Fig. 2 b; During assembling some stay bolts are passed by the bolt hole on the material storehouse front side board 9; Mounting hole on upper end, two sheet stock storehouses that horizontal respectively insertion is from top to bottom arranged track 11, two sheet stock storehouse intermediate orbits 12, lower end, the two sheet stock storehouses track 13 and through the nut parallel interval, the bolt hole from another side plate 10 passes again, and fix with nut; Be fixed on biside plate 9, the top edge of two sheet stock storehouses upper ends track 11 between 10, two sheet stock storehouse intermediate orbits 12, lower end, two sheet stock storehouses track 13 constitutes the inclined-plane of three sections bending tracks of Z font from top to bottom; Material storehouse feeding track 14 is shown in Fig. 4 d; Identical with the structure of three sections bending tracks 11 ~ 13; Horizontal direction leaves the space between lower end, said material storehouse track 13 and the material storehouse feeding track 14, supplies the motion of workpiece hoisting mechanism, sees Fig. 1,3; Two sheet stock storehouse feeding track 14 origin or beginnings are with vertically workpiece hoisting mechanism upper end is crossing, and material feeding track 14 track lower ends, storehouse are that its orbital plane of workpiece outlet becomes 45 with level; Workpiece relies on gravitational sliding in orbit perpendicular to material storehouse side plate 9,10 and track 11 ~ 14 top edges.
Workpiece hoisting mechanism: see Fig. 1, Fig. 2 a; The workpiece hoisting mechanism is installed on the hoisting mechanism support 4 through hoisting mechanism installing plate 40; Vertically cylinder 5 is installed on the hoisting mechanism installing plate 40 through bolt with vertical guide rod shaft bearing 38; Two vertical guide rod bearings 39 are installed in the vertical guide rod shaft bearing 38; Two vertical guide rods 6 pass vertical guide rod bearing 39 and parallel with the piston rod of vertical cylinder 5, and vertically the piston rod of cylinder 5 and vertical guide rod 6 front ends, material taking piece support 16 all are fixed on workpiece installing mechanism connecting plate 31 horizontal planes through nut, and material taking piece 15 is installed on the material taking piece support 16 through bolt; Between the end and material storehouse feeding track 14 straight flanges of material lower end, storehouse track 13, workpiece baffle plate 17 is installed in material taking piece support 16 belows; Two vertical cylinder guide rod 6 rear ends are connected with vertical cylinder limiting plate 36 through nut, and vertically locating piece 37 is equipped with in guide rod shaft bearing 38 upper ends.Vertically cylinder protective cover 32 is installed in hoisting mechanism installing plate 40 tops through bolt, covers vertical cylinder 5, vertically guide rod shaft bearing 38, vertically guide rod bearing 39, vertically cylinder limiting plate 36, locating piece 37.
Vertically vertical guide rod 6 plays guide effect during cylinder 5 guide rod vertical motions; Drive workpiece installing mechanism connecting plate 31 and do vertical motion together, and then the material taking piece support 16 that is installed on the workpiece installing mechanism connecting plate 31 drives material taking piece 15 and workpiece baffle plate 17 reciprocating motion between material lower end, storehouse track 13 and material storehouse feeding track 14.When vertically the piston rod of cylinder 5 reached near the limit travel position, vertically the vertical cylinder limiting plate 36 of guide rod 6 rear ends contacted with locating piece 37, and vertically cylinder 5 stop motions can guarantee vertical cylinder 5 and material taking piece 15 limit inferior position accurate positionings like this.
Workpiece installing mechanism: see Fig. 2 a; Horizontal air cylinder 7 is installed on workpiece installing mechanism connecting plate 31 vertical planes through bolt with horizontal guide bearing block 34; Horizontal guide bearing 35 is installed in the horizontal guide bearing block 34; Two horizontal guide 8 are passed horizontal guide bearing 35 and parallel with horizontal air cylinder 7 piston rods, and the piston rod of horizontal air cylinder 7 and horizontal guide 8 front ends are connected on the workpiece support mechanism connecting plate 18 through nut.Two horizontal guide 8 rear ends are connected with horizontal guide connecting plate 42.Horizontal air cylinder protective cover 33 is installed on the workpiece installing mechanism connecting plate 31 through bolt, covers horizontal air cylinder 7, horizontal guide bearing block 34, horizontal guide bearing 35 and horizontal guide connecting plate 42.
Horizontal air cylinder drives workpiece support mechanism and does horizontal movement, and during horizontal air cylinder 7 withdrawals, the workpiece that drives in the workpiece support mechanism moves to major axes orientation, and when horizontal air cylinder 7 fell back on the back extreme position, workpiece was loaded in the machine tool hydraulic chuck 41.
Workpiece support mechanism: see Fig. 5; Workpiece support mechanism is installed on the piston rod and horizontal guide 8 of horizontal air cylinder 7 through supporting mechanism connecting plate 18; Adjustment piece 19 is installed on the workpiece support mechanism connecting plate 18 by bolt; Workpiece fixed support plate 20 is installed on the adjustment piece 19 by bolt, and workpiece fixed support plate 20 inside are equipped with 43, two gripper shoe guide rods 23 of two gripper shoe guide rod bearings and are passed support guide rod bearing 43; Gripper shoe guide rod 23 1 ends are fixing through nut and unsteady gripper shoe 21; The other end is fixing through nut and unsteady support limit plate 24, and two compression springs 22 are contained in respectively on the gripper shoe guide rod 23, and two compression springs, 22 other end ends withstand on and float between gripper shoe 21 and the workpiece fixed support plate 20.
The support limit plate 24 that floats contact with bolt 44 on the workpiece fixed support plate 20, and the restriction distance between gripper shoe 21 and the fixed support plate 20 of floating is highly controlled distance between unsteady gripper shoe and the workpiece fixed support plate 20 through adjusting bolt 44.
The workpiece fixed mechanism: see Fig. 6 a, b, the workpiece fixed mechanism is installed in an end of fixed support plate 20 in the workpiece support mechanism, plays the effect of workpiece in the fixation workpiece supporting mechanism.Workpiece pressing plate 29 is installed on the workpiece plate bracket 28 by bolt; Workpiece plate bracket 28 lower ends are perpendicular to unsteady support limit plate 24; Workpiece pressing plate 29 can rotate around bolt, and extension spring 30 two ends are joining work pieces pressing plate 29 rear ends and workpiece plate bracket 28 tops respectively, and workpiece pressing plate 29 rear ends receive the stretching of extension spring 30; Upwards lift, front end is workpiece pressing downwards just.Workpiece pressing plate 29 rear ends are equipped with stay bolt 27b, cooperate with workpiece pressing plate limiting plate 27a on being installed in material right side, storehouse support 3.
Workpiece detection mechanism: expect on the storehouse side plate 9 before workpiece sensing switch bracket 25 is installed in through bolt; Sense switch 26 is installed on the workpiece sensing switch bracket 25 through carrying nut; Be positioned at feeding track 14 tops, also comprise being arranged on sensors vertical, horizontal air cylinder 5,7 piston rod position.
On the material storehouse side plate 9, see Fig. 1 before workpiece sensing switch bracket 25 is installed in through bolt, above the workpiece sensing switch bracket 25 waist-shaped hole is arranged; Can adjust the distance of workpiece sensing switch 26 feeding track 14 to the material storehouse; Detect the workpiece of different size, system judges that through reading magnetic switch signal on the cylinder cylinder action stretches out or retracted mode, and whether detect whole automatic feed mechanism action normal; Workpiece sensing switch 26 detects workpiece and feeds back to machine tool numerical control system later on; The lathe operate as normal, if workpiece sensing switch 26 does not detect workpiece signal, then lathe is reported to the police and is stopped.
Shown in accompanying drawing, Fig. 7 a1 is hydraulic electric motor and hydraulic electric motor fan control circuitry, exchanges three-phase 380V power supply through cable L11; L21, L31 is connected with three-phase motor starter QF50, QF50 output cable U51; V51, W51 is connected KM50 output cable U5 with the upper end that contactor KM50 is made war; V5, W5 connect the terminal U1 on three-phase alternating current extinguisher F50 and the hydraulic electric motor M50, V1 successively; W1, the last terminals P E of M50 is connected the final start and stop control that realizes hydraulic electric motor with earthing rod in the Hydraulic Station; DC control supply 24M, OM connects the terminal A1 on the hydraulic electric motor fan M51 through cable, A2, the start-up control of realization hydraulic electric motor fan.24M is DC control supply 24V, and OM is DC control supply 0V; Three-phase alternating current extinguisher F50 is used for the electric arc that the contact moment closing course of absorbing contact device KM50 produces, and the electric arc that prevents to produce is to the interference of other electrical part, the service life of also having improved contactor KM50 greatly simultaneously.
Fig. 7 a2 is the control circuit of contactor KM50; The upper end that two cross streams control power supply 110V is made war through cable 110A and relay K A50 is connected; Relay K A50 lower end battle is connected through the upper end of cable 517 with contactor KM50 coil; The lower end of contactor KM50 coil is connected with AC power 0 through cable; At KM50 coil two ends single-phase extinguisher F51 is installed, is used for preventing that contactor KM50 coil moment from getting the interference to system signal of electric arc that the process of electric adhesive produces, the service life of also having improved contactor KM50 greatly simultaneously.When the battle of relay K A50 is closed, the coil of contactor KM50 will get electric adhesive, and the battle of the contactor KM50 among Fig. 7 a1 will be closed simultaneously; Hydraulic electric motor M50 will start immediately; And for oild chuck provides hydraulic power, when breaking off with battle that should relay K A50, the coil of contactor KM50 breaks off dead electricity; To break off the battle of KM50 among Fig. 7 a1 simultaneously, hydraulic electric motor M50 will stop immediately.
Fig. 7 a3 is the oild chuck solenoid valve control circuit; The power line 24M of dc source 24M connects the upper end that relay K A51 is made war; The lower end that relay K A51 is made war connects the upper end of relay K A52 close point through cable KJ1; The lower end of relay K A52 close point is through the upper end of cable KJ2 connection magnetic valve YV51, and magnetic valve YV51 lower end connects DC control supply OM.When KA51 was made war closure, magnetic valve YV51 got electric adhesive, finally realized the control of oild chuck chucking valve; In like manner direct current supply line 24M connects the upper end that relay K A52 is made war; The lower end that relay K A52 is made war connects the upper end of relay K A51 close point through cable KS1; The lower end of relay K A51 close point connects magnetic valve YV52 upper end terminal through cable KS2, and YV52 lower end terminal connects DC control supply OM.When relay K A52 is made war closure, magnetic valve YV52 will get electric adhesive, the control that final realization is unclamped valve to oild chuck.This circuit adopts is a pair of bidirectional electromagnetic valve YV51 and YV52 to the chucking of oild chuck and unclamps control; What the hardware of relay K A51 and KA52 was connected employing simultaneously is mechanical interlock, has effectively promoted the reliability of oild chuck logic control through the special circuit design of this kind.
Fig. 7 b1 is an oild chuck PLC I/O output control circuit: being installed of this lathe bar is used through oild chuck and automatic feed mechanism, thus the logic control of oild chuck be finally realize the feed mechanism bar be installed can be reliable and stable core technology.What the control system of this numerical control loading and unloading lathe adopted is Siemens 802s system, and this system is that high level direct current 24V is effective.Dc source OM connects the terminal 500 ~ 502 of coupling terminal block XT2 upper end respectively through cable; The corresponding terminal in XT2 lower end connects the upper end of relay K A50 ~ 2 respectively through cable; Relay K A50 ~ 2 lower ends connect the corresponding terminal of last the 2nd ~ 4 pin of PLC interface X200 respectively through cable 500 ~ 502 and connect; The OPADD that each pin is corresponding is respectively Q0.5 ~ 7, and the state through the PLC OPADD carries out the relevant PLC logic control.When the Q0.5 conducting, relay coil KA50 gets electric adhesive, the battle of Fig. 7 a2 repeat circuit KA50 closure is finally realized the start-up control of hydraulic electric motor simultaneously; In the time of the Q0.6 conducting, relay coil KA51 gets electric adhesive, closed, the close point disconnection battle of Fig. 7 a3 repeat circuit KA51 simultaneously, and magnetic valve YV51 will get electric adhesive, finally realize the chucking control of oild chuck; In the time of the Q0.7 conducting, relay coil KA52 gets electric adhesive, closed, the close point disconnection battle of Fig. 7 a3 repeat circuit KA52 simultaneously, and magnetic valve YV52 will get electric adhesive, finally realize the control of unclamping of oild chuck.
Fig. 7 b2 is an oild chuck PLC I/O input control circuit: dc source 24V is connected with the upper end of sense switch SQ51 ~ 4 respectively through cable; The lower end of sense switch SQ51 ~ 4 through cable CHK, CCJ, CSK, CHP respectively with coupling terminal block XT2 on terminal CHK, CCJ, CSK, CHP be connected; The corresponding terminal in XT2 lower end connects through corresponding with last the 2nd ~ 5 pin of the PLC interface X103 respectively terminal of cable; The INADD that each pin is corresponding is respectively I3.0 ~ 3, and the state through the PLC OPADD carries out the relevant PLC logic control.When SQ51 was closed, system will receive this input signal, the final logic control that realizes that the chucking to oild chuck unclamps; When SQ52 was closed, system will receive this signal, finally realized the detection identification whether PLC has tightened oild chuck; With should SP2 closed the time, system will receive this input signal, finally realizes the detection identification whether PLC has unclamped oild chuck; With should SQ53 closed the time, system will receive this signal, finally realizes the detection identification whether PLC has unclamped oild chuck; With should SQ54 closed the time, system will receive this input signal, realizes finally whether pressure detects identification to PLC normally to oild chuck.
Fig. 7 c1 is a feed mechanism pneumatic operated valve control circuit; Dc source 24M connects the cylinder upper end that circuit relay electrical equipment KA81 makes war that makes progress through cable; The lower end that relay K A81 is made war connects the upper end of relay K A82 close point through cable QS1; The lower end of relay K A82 close point is through the upper end of cable QS connection magnetic valve YV81, and the lower end of magnetic valve YV81 connects dc source OM through cable; When the battle of relay K A81 is closed, magnetic valve YV81 will get electric adhesive, and the vertical cylinder of feed mechanism will move upward.In like manner DC control supply 24M connects the upper end that relay K A82 is made war through cable in the downward circuit of cylinder; The lower end that relay K A82 is made war connects the upper end of relay K A81 close point through cable QX1; The lower end of relay K A81 close point is through the upper end of cable QX connection magnetic valve YV82, and the lower end of magnetic valve YV82 connects dc source OM through cable; When the battle of relay K A82 is closed, magnetic valve YV82 will get electric adhesive, and the vertical cylinder of feed mechanism will move downward.YV81, YV82 are one group of bidirectional electromagnetic valve, and what the hardware of the relay K A81 of this circuit and KA82 was connected employing simultaneously is mechanical interlock, and the special circuit design of this kind has effectively promoted the reliability of vertical cylinder operation logic.In like manner DC control supply 24M connects the upper end that relay K A83 is made war through cable in the control circuit of the cylinder left and right sides; The lower end that relay K A83 is made war connects the upper end of magnetic valve YV83 through cable QZ; The lower end of magnetic valve YV83 connects dc source OM through cable, and when the battle of relay K A83 is closed, magnetic valve YV83 will get electric adhesive; The horizontal cylinder of feed mechanism will be to left movement simultaneously; When breaking off the battle of relay K A83, magnetic valve YV83 breaks off dead electricity, simultaneously owing to the horizontal cylinder of promotion is moved right by the reaction force of mechanical spring.
Fig. 7 c2 is a feed mechanism PLC I/O output control circuit; With Fig. 7 b1; Dc source OM connects the terminal 403,404,405 of coupling terminal block XT8 upper end respectively through cable; The corresponding terminal in XT8 lower end is connected with the upper end of relay K A81 ~ 3 respectively through cable; The lower end of relay K A81 ~ 3 is through the connection of corresponding with last the 7th ~ 9 pin of the PLC interface X201 respectively terminal of cable 403,404,405, and the OPADD of each pin correspondence is respectively Q1.5 ~ 7, and the state through the PLC OPADD carries out the relevant PLC logic control.In the time of the Q1.5 conducting, relay coil KA81 will get electric adhesive, and the battle of the relay K A81 among Fig. 7 c1 will be closed simultaneously, and close point will be broken off, and finally realizes the motion control that feed mechanism vertical direction cylinder makes progress; With should the Q1.6 conducting time, relay coil KA82 will get electric adhesive, and the battle of the relay K A82 among Fig. 7 c1 will be closed simultaneously, and close point will be broken off, and finally realizes the downward motion control of feed mechanism vertical direction cylinder; With should the Q1.7 conducting output time, relay coil KA83 will get electric adhesive, and the battle of the relay K A83 among Fig. 7 c1 will be closed simultaneously, finally realizes the motion control left of feed mechanism horizontal direction cylinder.
Fig. 7 c3 is the PLC I/O of a feed mechanism system input control circuit; With Fig. 7 b2; SQ81 ~ 6 are feed mechanism external detection switch; Dc source 24V connects the upper end of SQ81 ~ 6 respectively through cable; SQ81 ~ 6 lower ends are connected terminal DWL, KWL, SJX, XJX, ZJX and the YJX of coupling terminal block XT8 upper end respectively through cable DWL, KWL, SJX, XJX, ZJX and YJX, and the corresponding terminal in XT8 lower end is through corresponding with last the 4th ~ 9 pin of the PLC interface X104 respectively terminal connection of cable, and the INADD of each pin correspondence is I4.2 ~ 7; Each INADD is respectively applied for nothing and expects that detection, material loading detection in advance, limes superiors detection, limit inferior detection, limit on the left detection, limit on the right-right-hand limit detect, and the status signal that feeds back through sense switch SQ81 ~ 6 carries out the relevant PLC logic control.
Operation principle of the present invention:
This device initial position is that vertical cylinder 5 is in retracted mode, and material taking piece 15 is in the limes superiors position, and workpiece baffle plate 17 blocks the workpiece of feed bin the inside, and horizontal air cylinder 7 is in the state of stretching out (like Fig. 3).
It is 4 steps that whole material loading process is divided into:
Step 1: get the material process.Vertically cylinder 5 stretches out; Drive material taking piece 15 and move downward, when vertical cylinder 5 reached the limit inferior position, unit one slided into material taking piece 15 tops below the material storehouse; The workpiece of back in the material storehouse, can be guaranteed that material taking piece 15 only promotes a workpiece at every turn when promoting by the unit one retaining like this.
Step 2: lifting process.Workpiece slides into after material taking piece 15 tops; Vertically cylinder 5 begins withdrawal; Driving material taking piece 15 moves upward; Workpiece is risen on the material storehouse feeding track 14 from material track 13 positions, lower end, storehouse by material taking piece 15, slip into workpiece fixed support plate 20 and workpiece through the gravity effect along material storehouse feeding track 14 again and float in the workpiece support mechanism that gripper shoe 21 formed, other workpiece by workpiece baffle plate 17 retainings in feed bin.
Step 3: centering (getting material) process.Workpiece slip into workpiece support mechanism later on vertically cylinder 5 stretch out once more, the workpiece pressing plate 29 rear ends spring 30 that is stretched upwards stretches, workpiece pressing plate 29 front ends are fixed on workpiece on two gripper shoes in the supporting mechanism downwards, prevent the workpiece landing.When vertically cylinder moved downward extreme position, the workpiece centre in the workpiece support mechanism overlapped with the center of oild chuck 41.
Step 4: charging process.Workpiece centre is aimed at after the center of oild chuck 41, and horizontal air cylinder 7 begins withdrawal, drives workpiece support mechanism and moves to oild chuck 41 directions; The unsteady gripper shoe 21 of workpiece in horizontal air cylinder 7 motion processes in the workpiece support mechanism at first touches the front end face of oild chuck 41; Along with horizontal air cylinder 7 continues motion, the compression spring 22 that workpiece floats between gripper shoe 21 and the workpiece fixed support plate 20 is compressed, and workpiece one end exposes workpiece support mechanism; Get into oild chuck 41; When horizontal air cylinder 7 is withdrawn into extreme position, oild chuck 41 clamping work pieces, workpiece installs.
Horizontal air cylinder 7 stretches out once more, and the unsteady gripper shoe 21 of workpiece is compressed spring 22 and ejects, and horizontal air cylinder reaches after the extreme position, and vertically cylinder 5 begins withdrawal, and repeating step 2 so circulates repeatedly, and workpiece is by in the main shaft of constantly packing into automatically.
Claims (9)
1. lathe automatic charging device; Comprise the control program module that is communicated with machine tool control system, the circuit of distribution senser element; It is characterized in that workpiece storage mechanism is the vertical three sections bending inclined-plane tracks of Z font; Between the straight flange of material lower end, storehouse track ends and material storehouse feeding track the workpiece hoisting mechanism that is driven by vertical cylinder is installed; Terminal workpiece support mechanism and the workpiece installing mechanism that float design is installed of workpiece hoisting mechanism; The workpiece fixed mechanism is installed in workpiece support mechanism one end, and the workpiece installing mechanism is connected on the vertical cylinder piston rod and vertical guide rod in the workpiece hoisting mechanism through connecting plate, and horizontal air cylinder and horizontal guide bearing block are installed on the workpiece installing mechanism connecting plate; On feeding track and cylinder, Workpiece detecting device is set; Whole automatic feed mechanism promotes support through the material left and right sides, storehouse support and workpiece and is fixed on the installing plate, only needs installing plate is installed on the lathe and can uses through bolt; Workpiece in the workpiece storage mechanism gets in the workpiece support mechanism through the workpiece hoisting mechanism; The moving up and down of hoisting mechanism accomplish to extract workpiece and workpiece and machine tool chief axis to heart work; Horizontal air cylinder drives workpiece support mechanism and does horizontal movement, by the workpiece installing mechanism workpiece in the workpiece support mechanism is sent into machine tool chief axis.
2. lathe automatic charging device according to claim 1 is characterized in that the structure of workpiece storage mechanism: the top edge that is fixed on upper end, two sheet stock storehouses track (11) between the biside plate (9,10), two sheet stock storehouse intermediate orbits (12), two sheet stock storehouses lower end track (13) by some stay bolts constitutes the inclined-plane of three sections bending tracks of Z font from top to bottom; Material storehouse feeding track (14) is identical with the structure of the three sections bending tracks in upper, middle and lower (11 ~ 13); Horizontal direction leaves the space between material lower end, storehouse track (13) and the material storehouse feeding track (14); Supply the motion of workpiece hoisting mechanism; Two sheet stock storehouse feeding track (14) origin or beginnings are with vertically workpiece hoisting mechanism upper end is crossing, and material storehouse feeding track (14) track lower end is that its orbital plane of workpiece outlet becomes 45 with level; Workpiece relies on gravitational sliding in orbit perpendicular to material storehouse side plate (9,10) and track (11 ~ 14) top edge.
3. lathe automatic charging device according to claim 1; It is characterized in that the workpiece hoisting mechanism is installed on the hoisting mechanism support (4) through hoisting mechanism installing plate (40); Vertically cylinder (5) and vertical guide rod shaft bearing (38) are installed on the hoisting mechanism installing plate (40) through bolt; Two vertical guide rod bearings (39) are installed in the vertical guide rod shaft bearing (38); Two vertical guide rods (6) pass vertical guide rod bearing (39) and parallel with the piston rod of vertical cylinder (5); Vertically the piston rod of cylinder (5) and vertical guide rod (6) front end, material taking piece support (16) all are fixed on workpiece installing mechanism connecting plate (31) horizontal plane through nut; The material taking piece support (16) that material taking piece (15) is installed is fixed on the workpiece installing mechanism connecting plate (31), is positioned between the end and material storehouse feeding track (14) straight flange of material lower end, storehouse track (13), and workpiece baffle plate (17) is installed in material taking piece support (16) below; Two vertical cylinder guide rods (6) rear end is connected with vertical cylinder limiting plate (36) through nut, and vertically locating piece (37) is equipped with in guide rod shaft bearing (38) upper end; Vertically cylinder protective cover (32) is installed in hoisting mechanism installing plate (40) top through bolt, covers vertical cylinder (5), vertical guide rod shaft bearing (38), vertical guide rod bearing (39), vertical cylinder limiting plate (36), locating piece (37).
4. according to the described lathe automatic charging device of claim 1; It is characterized in that workpiece support mechanism is installed on the piston rod and horizontal guide (8) of horizontal air cylinder (7) through supporting mechanism connecting plate (18); Adjustment piece (19) is installed on the workpiece support mechanism connecting plate (18) by bolt; Workpiece fixed support plate (20) is installed on the adjustment piece (19) by bolt; Workpiece fixed support intralamellar part is equipped with two gripper shoe guide rod bearings (43), and two gripper shoe guide rods (23) pass support guide rod bearing (43), and gripper shoe guide rod (23) one ends are fixing through nut and unsteady gripper shoe (21); The other end is fixing through nut and unsteady support limit plate (24); Two compression springs (22) are contained in respectively on the gripper shoe guide rod (23), and two compression spring other end ends withstand between unsteady gripper shoe (21) and the workpiece fixed support plate (20), and unsteady support limit plate (24) contacts with bolt (44) on the workpiece fixed support plate (20); Distance between unsteady gripper shoe (21) of restriction and the fixed support plate (20) is highly controlled the distance between gripper shoe and the workpiece fixed support plate (20) of floating through regulating bolt (44).
5. according to the described lathe automatic feed mechanism of claim 1; It is characterized in that workpiece installing mechanism horizontal air cylinder (7) and horizontal guide bearing block (34) are installed on workpiece installing mechanism connecting plate (31) vertical plane through bolt; Horizontal guide bearing (35) is installed in the horizontal guide bearing block (34); Two horizontal guide (8) are passed horizontal guide bearing (35) and parallel with horizontal air cylinder (7) piston rod, and the piston rod of horizontal air cylinder (7) and horizontal guide (8) front end are connected on the workpiece support mechanism connecting plate (18) through nut; Two horizontal guide (8) rear end is connected with horizontal guide connecting plate (42); Horizontal air cylinder protective cover (33) is installed on the workpiece installing mechanism connecting plate (31) through bolt, covers horizontal air cylinder (7), horizontal guide bearing block (34), horizontal guide bearing (35) and horizontal guide connecting plate (42).
6. according to the described lathe automatic feed mechanism of claim 1; It is characterized in that the workpiece fixed mechanism is installed in an end of fixed support plate in the workpiece support mechanism (20); Workpiece pressing plate (29) is installed on the workpiece plate bracket (28) by bolt; Workpiece plate bracket (28) lower end is perpendicular to unsteady support limit plate (24), and workpiece pressing plate (29) can rotate around bolt, and workpiece pressing plate (29) rear end is connected by extension spring (30) with workpiece plate bracket (28) top; Workpiece pressing plate (29) rear end is equipped with stay bolt (27b), cooperates with workpiece pressing plate limiting plate (27a) on being installed in material right side, storehouse support (3), and vertical cylinder (5) was withdrawn when the workpiece hoisting mechanism rose; The workpiece fixed mechanism rises thereupon; When workpiece hoisting mechanism during to extreme position, workpiece pressing plate limiting plate (27a) to pressing down, overcomes the pulling force of extension spring (30) with the stay bolt (27b) of workpiece pressing plate (29) rear end; Workpiece pressing plate (29) front end is lifted, make workpiece can slip into workpiece support mechanism.
7. lathe automatic feed mechanism according to claim 1; It is characterized in that a: workpiece detection mechanism: expect on the storehouse side plate (9) before workpiece sensing switch bracket (25) is installed in through bolt; Sense switch (26) is installed on the workpiece sensing switch bracket (25) through carrying nut; Be positioned at feeding track (14) top, also comprise being arranged on sensor vertical, horizontal air cylinder (5,7) piston rod position; B: vertically cylinder is spacing: cylinder limiting plate (36) adjustable positions, controlled system material taking piece (15) limit inferior position; When vertically the piston rod of cylinder (5) reached near the limit travel position, vertically the vertical cylinder limiting plate (36) of guide rod (6) rear end contacted with locating piece (37), and vertically cylinder (5) stop motion is to guarantee vertical cylinder limit inferior position accurate positioning.
8. according to the described lathe automatic feed mechanism of claim 2 ~ 5; It is characterized in that component specification is adjustable: side plate (9,10) width spacing can be regulated through the nut on the stay bolt before and after the material storehouse; Upper end, material storehouse track (11), material storehouse intermediate orbit (12), material lower end, storehouse track (13) and feeding track (14) vertical direction all have waist-shaped hole, regulate each section orbit altitude spacing through nut; Each track corner is the obtuse angle; Material taking piece (15), workpiece support mechanism connecting plate (18) also all have waist-shaped hole at vertical direction, and adjustment piece (19) is adjustable supports mechanism vertical position above that; The waist-shaped hole of horizontal direction is arranged on the adjustment piece (19), and fixed support plate (20) moves horizontally above it, adjustment workpiece horizontal direction position; The workpiece sensing switch bracket has waist-shaped hole above (25), and adjustment workpiece sensing switch (26) has each parts of waist-shaped hole to be used for the workpiece adjustment position according to different size to the distance of material storehouse feeding track (14).
9. lathe automatic feed mechanism according to claim 1 is characterized in that circuit design:
A: hydraulic electric motor and hydraulic electric motor fan control circuitry exchange three-phase 380V power supply through cable (L11, L21; L31) be connected three-phase motor starter (QF50) lower end cable (U51, V51 with three-phase motor starter (QF50); W51) be connected contactor (KM50) lower end cable (U5, V5 with the upper end that contactor (KM50) is made war; W5) connect terminal (U1 on three-phase alternating current extinguisher (F50) and the hydraulic electric motor (M50) successively; V1, W1), the terminal (PE) on the hydraulic electric motor (M50) is connected with the earthing rod in the Hydraulic Station; (A1 A2), realizes the start-up control of hydraulic electric motor fan to DC control supply (24M, OM) through the terminal on the cable connection hydraulic electric motor fan (M51);
B: the control circuit of contactor (KM50); Two cross streams control power supply 110V connects the upper end that relay (KA50) is made war through cable 110A; The lower end that relay (KA50) is made war connects the upper end of contactor (KM50) coil through cable (517); The lower end of contactor (KM50) coil is connected with AC power 0 through cable, at contactor (KM50) coil two ends single-phase extinguisher (F51) is installed;
C: oild chuck solenoid valve control circuit; The power line 24M of dc source 24V connects the upper end that relay (KA51) is made war through cable; The lower end that relay (KA51) is made war connects the upper end of relay (KA52) close point through cable (KJ1); The lower end cable (KJ2) of relay (KA52) close point connects the upper end of magnetic valve (YV51); The terminal of magnetic valve (YV51) lower end connects dc source OM through cable, and in like manner dc source 24V connects the upper end that relay (KA52) is made war through cable 24M, and the lower end that relay (KA52) is made war connects the upper end of relay (KA51) close point through cable (KS1); The lower end of relay (KA51) close point connects magnetic valve (YV52) upper end terminal through cable (KS2), and the terminal of magnetic valve (YV52) lower end connects dc source (OM) through cable;
D: dc source OM connects the terminal (500 ~ 502) of coupling terminal block (XT2) upper end respectively through cable; The corresponding terminal in coupling terminal block (XT2) lower end connects the upper end of relay (KA50 ~ 2) respectively through cable; Relay (KA50 ~ 2) lower end connects PLC interface (X200) respectively through cable (500 ~ 502) and goes up the corresponding terminal connection of pin (2 ~ 4); The OPADD that each pin is corresponding is respectively (Q0.5 ~ 7), and the state through the PLC OPADD carries out the relevant PLC logic control;
E: feed mechanism pneumatic operated valve control circuit: control vertical cylinder upwards in the circuit of operation DC control supply 24M connect the upper end that relay (KA81) is made war through cable; The lower end that relay (KA81) is made war connects the upper end of relay (KA82) close point through cable (QS1); The lower end of relay (KA82) close point is through the upper end of cable (QS) connection magnetic valve (YV81), and the lower end of magnetic valve (YV81) connects dc source (OM) through cable; In like manner promote in the circuit that vertical cylinder moves downward; Setting and magnetic valve (YV81) are all one group bidirectional electromagnetic valve (YV82); Connect the upper end that relay (KA82) is made war by DC control supply 24M through cable; The lower end that relay (KA82) is made war connects the upper end of relay (KA81) close point through cable (QX1); The lower end of relay (KA81) close point is through the upper end of cable (QX) connection magnetic valve (YV82), and the lower end of magnetic valve (YV82) connects dc source (OM) through cable; The hardware of relay (KA81, KA82) connects the mechanical interlocked circuit of employing; In like manner DC control supply 24M connects the upper end that relay (KA83) is made war through cable in the horizontal air cylinder circuit; The lower end that relay (KA83) is made war is through the upper end of cable (QZ) _ connection magnetic valve (YV83), and the lower end of magnetic valve (YV83) connects dc source (OM) through cable;
F: dc source 24V is connected with the upper end of sense switch (SQ51 ~ 4) respectively through cable; The lower end of sense switch (SQ51 ~ 4) through cable (CHK, CCJ, CSK, CHP) respectively with coupling terminal block (XT2) on terminal (CHK, CCJ, CSK, CHP) be connected; The corresponding terminal in coupling terminal block (XT2) lower end is gone up the corresponding terminal of pin (2 ~ 5) with (PLC) interface (X103) respectively through cable and is connected; The INADD that each pin is corresponding is respectively (I3.0 ~ 3), and the state through the PLC OPADD carries out the relevant PLC logic control;
G: feed mechanism PLC output control circuit: dc source (OM) connects the terminal (403,404,405) of coupling terminal block (XT8) upper end respectively through cable; The corresponding terminal in coupling terminal block (XT8) lower end is connected with the upper end terminal of relay (KA81 ~ 3) respectively through cable; The lower end of relay (KA81 ~ 3) is gone up the corresponding terminal of pin (7 ~ 9) with PLC interface (X201) respectively through cable (403,404,405) and is connected; The OPADD that each pin is corresponding is respectively (Q1.5 ~ 7), and the state through the PLC OPADD carries out the relevant PLC logic control;
H: the PLC I/O of feed mechanism system input control circuit; Dc source 24V is joint detection switch (SQ81 ~ 6) respectively; Its corresponding output connects the terminal of coupling terminal block XT8 upper end respectively; The corresponding terminal in coupling terminal block (XT8) lower end is gone up the corresponding terminal of pin (4 ~ 9) with PLC interface X104 respectively and is connected; The INADD (I4.2 ~ 7) that each pin is corresponding, the status signal that feeds back through sense switch (SQ81 ~ 6) carries out the relevant PLC logic control; When workpiece can detect signal through sensor when below sensor, and feed back to the control system, prove the automatic feed mechanism operation normally, can report to the police and quit work automatically if any the abnormal conditions lathe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202273749U CN202200093U (en) | 2011-06-30 | 2011-06-30 | Automatic feeding device of machine tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202273749U CN202200093U (en) | 2011-06-30 | 2011-06-30 | Automatic feeding device of machine tool |
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| CN202200093U true CN202200093U (en) | 2012-04-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011202273749U Expired - Fee Related CN202200093U (en) | 2011-06-30 | 2011-06-30 | Automatic feeding device of machine tool |
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| CN102248436A (en) * | 2011-06-30 | 2011-11-23 | 沈阳机床股份有限公司 | Automatic feeding device for machine tool and manufacturing method thereof |
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| CN108100617A (en) * | 2017-12-29 | 2018-06-01 | 上海宁远精密机械有限公司 | The Z-type feeding rack device of adjustable-angle and width |
| CN109623463A (en) * | 2018-12-12 | 2019-04-16 | 襄阳龙思达智控技术有限公司 | A kind of axis material beveler automatic loading and unloading device |
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