阅读说明：本技术 用于低床身设备的盘类零件自动转盘料仓及其控制系统 (Automatic rotary disc storage bin for disc parts of low-lathe-bed equipment and control system of automatic rotary disc storage bin ) 是由 张华� 赵雷 陈华 余衡 杨川 赵志雄 骆冬智 *** 吕佳阳 邓江山 周会佳 于 2019-07-31 设计创作，主要内容包括：本发明涉及自动化生产设备领域,具体涉及用于低床身设备的盘类零件自动转盘料仓及其控制系统,包括低床身座、升降送料机构、间歇运动机构和旋转料仓机构,所述间歇运动机构包括交流电机、凸轮分割器和间歇旋转盘,所述旋转料仓机构包括若干以中心孔为轴心安装在间歇旋转盘上的固定底盘组和导杆,所述升降送料机构包括升降支撑架、伺服电机、直线提升模组和推料板,此设计为机床自动上下料的前端设备,配合工业机器人等自动化设备使用,针对盘类零件开发,具有较强的通用性,适用于齿轮、链轮等盘类零件的加工送料,在使用过程中,盘类零件自动转盘料仓能够有效的降低上料高度,减小体积,降低机床自动上下料工作站的设计难度,降低成本。(The invention relates to the field of automatic production equipment, in particular to an automatic turntable bin for disc parts of low-lathe-bed equipment and a control system thereof, which comprises a low-lathe-bed seat, a lifting and feeding mechanism, an intermittent movement mechanism and a rotary bin mechanism, wherein the intermittent movement mechanism comprises an alternating current motor, a cam divider and an intermittent rotary disk, the rotary bin mechanism comprises a plurality of fixed base disc groups and guide rods which are arranged on the intermittent rotary disk by taking a central hole as an axis, the lifting and feeding mechanism comprises a lifting support frame, a servo motor, a linear lifting module and a material pushing plate, the automatic feeding and discharging front-end equipment is designed into front-end equipment for automatic feeding and discharging of a machine tool, is matched with automatic equipment such as an industrial robot and the like for use, has stronger universality aiming at the development of disc parts, is suitable for the processing and feeding of the disc parts such as gears, chain wheels and, the volume is reduced, the design difficulty of the automatic feeding and discharging workstation of the machine tool is reduced, and the cost is reduced.)

1. A automatic carousel feed bin of dish class part for low lathe bed equipment, its characterized in that: the intermittent motion mechanism (3) is arranged in the box-type low-bed body seat (1), and the rotary bin mechanism (4) is arranged at the top of the low-bed body seat (1);

the intermittent motion mechanism (3) comprises an alternating current motor (30), a cam divider (31) and an intermittent rotating disc (32), a central hole is formed in an upper plane plate (11) of the low-lathe-bed base (1), an input shaft of the cam divider (31) is connected to the alternating current motor (30), an index plate (33) of the cam divider (31) penetrates through the central hole to protrude out of the upper plane plate of the low-lathe-bed base (1), and the intermittent rotating disc (32) is rigidly connected to the index plate (33);

the rotary bin mechanism (4) comprises a plurality of fixed base plate groups (40) and guide rods (41) which are arranged on the intermittent rotary disc (32) by taking a central hole as an axis, at least three guide rods (41) are arranged on one fixed base plate group (40), the three guide rods (41) are uniformly distributed around the axis of the fixed base plate group (40), disc parts (5) are sleeved on the guide rods (41) and are sequentially overlapped and stacked on the fixed base plate group (40), the number of the fixed base plate groups (40) is equal to that of cam rollers on the dividing plate (33), and the spacing included angles are the same;

the lifting and feeding mechanism (2) comprises a lifting support frame (20), a servo motor (21), a linear lifting module (22) and a material pushing plate (23), wherein a through hole (12) is further formed in an upper plane plate (11) of the low-lathe-bed base (1), when a cam divider (31) stops, one group of fixed bottom disc sets (40) is arranged in the center of the through hole (12), the lifting support frame (20) is installed on the upper plane plate (11) of the low-lathe-bed base (1), the side position of the through hole (12) on the other side of the fixed bottom disc sets (40) is deviated, the linear lifting module (22) is installed on the lifting support frame (20), the material pushing plate (23) is installed on the linear lifting module (22), the servo motor (21) is installed at the bottom of the linear lifting module (22) to drive the vertical lifting movement, and the servo motor (21) is located inside the low-lathe bed base (1), when the material pushing plate (23) is lifted, the material pushing plate passes through the through hole (12) from the lower part of the upper plane plate (11) of the low-lathe-body base (1) upwards and then drives the fixed base plate set (40) to be lifted vertically along the guide rod (41).

2. The automatic carousel feed bin of disc parts for low-bed equipment of claim 1, wherein: the fixed base plate group (40) comprises a lower base plate (401), a middle adjusting plate (402) and an upper pressing plate (403) which are sequentially stacked, at least three guide rail grooves (4011) extending from the edge of the lower base plate (401) to the central axis of the lower base plate (401) are formed in the lower base plate (401), and the lower ends of the three guide rods (41) are respectively installed in the three guide rail grooves (4011); the middle adjusting disk (402) is provided with at least three arc-shaped strip holes (4021) for the guide rod (41) to pass through, and the three arc-shaped strip holes (4021) are in a vortex-shaped vortex direction along the central shaft of the middle adjusting disk (402); the upper pressing disc (403) is at least provided with three linear bar holes (4031) for the guide rod (41) to pass through, and the positions of the guide rail groove (4011), the arc bar holes (4021) and the linear bar holes (4031) are communicated up and down.

3. The automatic carousel bin of disc parts for low-bed equipment of claim 2, wherein: the intermittent rotary disk (32) between two adjacent groups of fixed base disk groups (40) is provided with groove holes (320) which are recessed towards the direction of the central hole, the plurality of groove holes (320) divide the peripheral section of the intermittent rotary disk (32) into the bearing convex blocks (321) with the same number as the fixed base disk groups (40), the diameters of the lower base disk (401) and the middle adjusting disk (402) are narrower than the width of the bearing convex blocks (321), and the diameter of the upper pressing disk (403) is wider than the width of the bearing convex blocks (321).

4. The automatic carousel bin of disc parts for low-bed equipment of claim 3, wherein: the section of the material pushing plate (23) is U-shaped, the closed bottom end part of the U-shaped material pushing plate (23) is installed on the linear lifting module (22), the opening end of the U-shaped material pushing plate (23) faces the direction of the bearing convex block (321), and the width of the gap between the opening ends of the U-shaped material pushing plate (23) is larger than the width of the bearing convex block (321) and smaller than or equal to the diameter of the upper pressing disc (403).

5. The automatic carousel bin of disc parts for low-bed equipment of claim 3, wherein: and a stress supporting column (13) surrounding the index plate (33) for one circle is further arranged between the intermittent rotating disk (32) and the upper plane plate (11) of the low-bed body seat (1), the upper end of the stress supporting column (13) is in a bead shape, and the upper top surface of the stress supporting column (13) is in contact with the lower bottom surface of the intermittent rotating disk (32).

6. The automatic carousel bin of disc parts for low-bed equipment of claim 4, wherein: the linear lifting module (22) comprises a ball screw (220), a linear sliding rail (221), a screw slider (222) and a linear slider (223), the linear sliding rail (221) is fixed on the lifting support frame (20), the ball screw (220) is connected to an output shaft of the servo motor (21) through a coupler, the screw slider (222) is sleeved on the ball screw (220), the middle part of the linear slider (223) is fixed on the screw slider (222), the two side edge parts of the linear slider are clamped on the linear sliding rail (221) to slide up and down, and the closed bottom end part of the U-shaped material pushing plate (23) is fixed on the linear slider (223).

7. The control system for the automatic rotating disk magazine of disk parts for low-bed equipment according to any one of claims 1 to 6, characterized in that: the system comprises a PLC control system, an HMI touch screen (7), a correlation sensor (6), a proximity switch (8), an operation button, a robot input signal, a robot output signal and a signal lamp, wherein the HMI touch screen (7) is communicated with the PLC control system, the correlation sensor (6), the proximity switch (8), the operation button and the robot input signal are connected to the input end of the PLC control system, and the servo motor (21), an alternating current motor (30), the signal lamp and the robot output signal are connected to the output end of the PLC control system;

the HMI touch screen (7) is arranged on a touch pad for a human-computer interaction interface, the control button is arranged on the touch pad, and the touch pad is fixed on an upper plane plate (11) of the low-bed body seat (1) through a support upright post (71);

the correlation sensor (6) is divided into a correlation sensor transmitting end (60) and a correlation sensor receiving end (61), the correlation sensor transmitting end (60) and the correlation sensor receiving end (61) take the linear lifting module (22) as a symmetrical center line, and are respectively positioned on the left side and the right side of the disk part (5) at the highest position on the linear lifting module (22);

proximity switch (8) divide into from last upper limit sensor, initial point sensor and the lower limit sensor of installing on sharp lift module (22) down in proper order.

8. The control system for the automatic rotating disc storage bin of disc parts for low-lathe-bed equipment according to claim 7, characterized in that: the PLC control system is internally divided into a manual control program and an automatic operation program.

9. The control system for the automatic rotating disc magazine of disc parts for low-bed equipment according to claim 8, characterized in that: the manual control program comprises

The data processing module stores and calculates the speed and the lifting height of the linear lifting module and the running distance of the touch proximity switch, the running speeds of the servo motor and the alternating current motor and the rotating angle of the intermittent rotating disk,

an alarm module for giving an alarm when the material pushing plate moves to the position close to the switch,

the rotating disk control module controls the angular displacement of the intermittent rotating disk according to the number of the fixed chassis groups,

a lifting module control module for controlling the operation mode of the linear lifting module,

the reset module resets after the material pushing plate moves to the highest position of the linear lifting module and resets to the lowest position,

and the automatic state switching module is switched to an automatic running program mode.

10. The control system for the automatic rotating disc magazine of disc parts for low-bed equipment according to claim 8, characterized in that: the operation control method of the automatic turntable bin for the disc parts (5) after the automatic operation program is started comprises the following steps:

step one, clicking a starting switch, entering an automatic operation program mode, initializing after the automatic operation is started, resetting an intermittent motion mechanism (3) and a lifting feeding mechanism (2) and returning to a zero position,

step two, the first group of fixed base plate group (40) filled with the disc parts (5) and the guide rod (41) move to the position of the through hole (12) right in front of the linear lifting module (22),

thirdly, the linear lifting module (22) starts to lift and operate from the zero position, the material pushing plate 923 drives the upper pressing disc (403) to lift, the uppermost disc part (5) on the fixed base disc set (40) touches the correlation sensor (6), the linear lifting module (22) stops after decelerating and operating the height of one disc part (5), the disc parts (5) are sent to the set height and counted,

step four, the industrial robot grabs a disk part (5) at the uppermost end,

step five, the linear lifting module (22) is lifted again, and the process is circulated until all the disc parts (5) on the same group of the fixed base disc set (40) and the guide rod (41) are grabbed,

and sixthly, resetting the linear lifting module (22), returning to the zero position, operating the intermittent motion mechanism (3), rotating the intermittent rotating disk (32), rotating the next adjacent group of fixed base disk group (40) and guide rod (41) to the position of the through hole (12) right in front of the linear lifting module (22), and recycling the third step and the fourth step.

Technical Field

The invention relates to the field of automatic feeding equipment of machine tools, in particular to an automatic turntable stock bin for disc parts of low-lathe-bed equipment and a control system thereof.

Background

Industrial robots are gradually entering the machining manufacturing industry and are standardized as a standard unit in production. The single industrial robot cannot work, and the single industrial robot can work only by being combined with peripheral equipment to form a work station system with a specific function. In machining type manufacturing enterprises, the production of a large number of parts depends on machine tools, and the clamping of the parts of the machine tools is finished manually. The automatic feeding and discharging of the machine tool are achieved by replacing manual work, namely the work station formed by the industrial robot and the peripheral equipment of the robot is matched with the machine tool.

In the automatic loading and unloading workstation of machine tool, except industrial robot, the most important peripheral equipment is automatic feed bin. The automatic storage bin is mainly used for orderly arranging the workpieces which are placed out of order, accurately separating the workpieces one by one according to the grasping requirement of the robot and sending the workpieces to an automatic position.

The turntable storage bin is a common structure of an automatic storage bin for disc parts, is used for automatically storing the disc parts, and is matched with an industrial robot to realize automatic feeding and discharging of the robot. Common carousel feed bin is because hoist mechanism is in the lathe bed lower part, and the bedding is higher, and the height of feed bin is higher, gets material, pay-off height higher, because this structure is specific, and industrial robot that is not convenient for snatchs and manual loading.

Disclosure of Invention

The invention aims to provide an automatic turntable stock bin for disc parts of low-lathe-bed equipment and a control system thereof, which have the characteristics of good rigidity, high strength, difficult deformation and the like, can effectively reduce the feeding height, reduce the volume, reduce the design difficulty of an automatic feeding and discharging workstation of a machine tool and reduce the cost.

In order to achieve the purpose, the technical scheme of the invention is as follows:

a automatic carousel feed bin of dish class part for low lathe bed equipment includes low lathe bed seat, lift feeding mechanism, intermittent motion mechanism and rotatory feed bin mechanism, intermittent motion mechanism installs in box low lathe bed seat, rotatory feed bin mechanism installs at low lathe bed seat top.

The intermittent motion mechanism comprises an alternating current motor, a cam divider and an intermittent rotating disk, a central hole is formed in an upper plane plate of the low-lathe-body base, an input shaft of the cam divider is connected to the alternating current motor, an index plate of the cam divider penetrates through the central hole to protrude out of the upper plane plate of the low-lathe-body base, and the intermittent rotating disk is rigidly connected to the index plate.

The rotary bin mechanism comprises a plurality of fixed base plate groups and guide rods, the fixed base plate groups and the guide rods are mounted on the intermittent rotary disk by taking the center hole as an axis, at least three guide rods are arranged on one fixed base plate group, the three guide rods are uniformly distributed around the axis of the fixed base plate group, the plate parts are sleeved on the guide rods and are sequentially overlapped and stacked on the fixed base plate groups, the number of the fixed base plate groups is equal to that of the cam rollers on the index plate, and the interval included angles are the same.

The lifting feeding mechanism comprises a lifting support frame, a servo motor, a linear lifting module and a material pushing plate, wherein a through hole is further formed in an upper plane plate of the low lathe bed base, when the cam divider stops, one group of fixed bottom plate groups are arranged in the center of the through hole, the lifting support frame is arranged on the upper plane plate of the low lathe bed base, the lifting support frame is arranged at the side position of the through hole at the other side of the fixed bottom plate groups, the linear lifting module is arranged on the lifting support frame, the material pushing plate is arranged on the linear lifting module, the servo motor is arranged at the bottom of the linear lifting module and drives the linear lifting module to move up and down, the servo motor is arranged in the box-type low lathe bed base, and the fixed bottom plate groups are driven to vertically lift along guide rods after the lower part of the upper plane plate of the low lathe bed base penetrates through the.

The beneficial effect of above-mentioned design is: this feed bin is the automatic front end equipment who goes up unloading of lathe, and the cooperation automation equipment such as industrial robot uses, to the development of dish class part, has stronger commonality, is applicable to the processing pay-off of dish class parts such as gear, sprocket, and cooperation industrial robot realizes the automatic unloading of going up of gear, wheel sprocket lathe. In the use, the automatic carousel feed bin of dish class part can effectual reduction material loading height, reduces the volume, reduces the automatic design degree of difficulty of unloading workstation on lathe, reduce cost.

The fixed base plate group comprises a lower base plate, a middle adjusting plate and an upper pressing plate which are sequentially stacked, at least three guide rail grooves extending from the edge of the lower base plate to the central axis of the lower base plate are formed in the lower base plate, and the lower ends of the three guide rods are respectively arranged in the three guide rail grooves; the middle adjusting disk is provided with at least three arc-shaped strip holes for the guide rod to pass through, and the three arc-shaped strip holes are in a vortex-shaped rotation direction along the central shaft of the middle adjusting disk; the upper pressing disc is at least provided with three linear bar holes for the guide rod to pass through, and the positions of the guide rail groove, the arc bar holes and the linear bar holes are communicated up and down. The effect on lower chassis is for the installation to fix the guide arm, make three vertical upwards fixed of guide arm, the effect of guide arm is that it overlaps in proper order to be convenient for a set class part and put, the effect of well adjustment disk is the spacing distance between the three guide arm of fine setting, make it stack the dish class part of different diameters size, the effect of going up the pressure disk is the position that compresses tightly guide arm and well adjustment disk, the dish class part dislocation of stacking about avoiding the in-process of scraping wings class part is carried to the flitch each other, thereby avoid industrial robot can't pinpoint snatch the error of part and appear.

And the diameter of the lower chassis and the middle adjusting disk is narrower than the width of the bearing convex blocks, and the diameter of the upper pressing disk is wider than the width of the bearing convex blocks.

Further inject, the cross-section of scraping wings is the U font, and the closed bottom end portion of U font scraping wings is installed on sharp promotion module, and the open end of U font scraping wings is towards bearing the protruding piece direction, and the open end centre clearance width of U font scraping wings is greater than the width that bears the protruding piece, is less than or equal to the diameter that compresses tightly the dish on the width of bearing. Bear the weight of protruding piece, recess hole and U font scraping wings three's cooperation design, be convenient for stack whole in the time of promoting for sharp promotion module and compress tightly the dish up lifting on, and chassis and well adjusting disk diameter are less down, can stabilize the guide arm in the original position, and the height of lifting at every turn all lets the dish type part of highest position arrange in wait for the station of snatching on to cooperate industrial robot to snatch a dish type part.

Further limiting, a stress supporting column surrounding the dividing plate for a circle is further arranged between the intermittent rotating disk and the upper plane plate of the low-lathe-body seat, the upper end of the stress supporting column is in a bead shape, and the upper top surface of the stress supporting column is in contact with the lower bottom surface of the intermittent rotating disk. The fixed base plate group for stacking the disc parts is heavy in weight borne on the intermittent rotating disc, if the intermittent rotating disc is supported only by the dividing disc at the position of the central hole, the outer edge of the intermittent rotating disc far away from the position of the central hole is easy to deform or even break, so that the intermittent rotating disc is stably supported by the stress supporting column in design, and the bearing capacity of the intermittent rotating disc is enhanced.

Further inject, the straight line promotes the module and includes ball, linear slide rail, lead screw slider and sharp slider, linear slide rail fixes on lift support frame, ball passes through the coupling joint on servo motor's output shaft, lead screw slider cover is on ball, the intermediate part of sharp slider is fixed on lead screw slider, both sides limit portion joint slide on linear slide rail goes up and down on linear slide rail, and the closed bottom end portion of U font scraping wings is fixed on linear slider. The disc parts are driven to move upwards accurately, and the workpieces on the single fixed base disc group are separated one by one.

A control system that is used for automatic carousel feed bin of dish class part of low lathe bed equipment, including PLC control system, HMI touch-sensitive screen, correlation sensor, proximity switch, operating button, robot input signal, robot output signal and signal lamp, communicate between HMI touch-sensitive screen and the PLC control system, correlation sensor, proximity switch, operating button and robot input signal access PLC control system's input, servo motor, AC motor, signal lamp and robot output signal connection PLC control system's output. The HMI touch screen is arranged on the touch pad for a human-computer interaction interface, the control button is arranged on the touch pad, and the touch pad is fixed on the upper plane plate of the low bed body seat through the support upright post. The correlation sensor is divided into a correlation sensor transmitting end and a correlation sensor receiving end, and the correlation sensor transmitting end and the correlation sensor receiving end are respectively positioned on the left and right symmetrical sides of the disk part at the highest position on the linear lifting module by taking the linear lifting module as a symmetrical central line. The proximity switch is divided into an upper limit sensor, an original point sensor and a lower limit sensor which are sequentially installed on the linear lifting module from top to bottom.

Further, the PLC control system is internally divided into a manual control program and an automatic operation program.

Further limiting, the manual control program comprises a data processing module, an alarm module, a rotating disk control module, a lifting module control module, a reset module and an automatic state switching module, wherein the data processing module has the functions of storing and calculating the speed and the lifting height of the linear lifting module and the running distance of a touch proximity switch, storing and calculating the running speeds of a servo motor and an alternating current motor and storing and calculating the rotating angle of an intermittent rotating disk; the alarm module is used for giving an alarm when the material pushing plate runs to the position close to the switch; the rotating disc control module controls the angular displacement of the intermittent rotating disc according to the number of the fixed chassis groups; the lifting module control module is used for controlling the operation mode of the linear lifting module; the reset module has the function of resetting after the material pushing plate runs to the highest position of the linear lifting module and resetting to the lowest position; the automatic state switching module is used for switching to an automatic operation program mode.

Further, the control button is divided into a start switch, a stop switch and a pause switch, and the operation control method of the automatic turntable bin for the disc parts after the automatic operation program is started comprises the following steps:

step one, clicking a starting switch, entering an automatic operation program mode, initializing after the automatic operation is started, resetting an intermittent motion mechanism and a lifting feeding mechanism, returning to a zero position,

step two, the first group of fixed base plate group filled with the plate parts and the guide rod move to the position of the through hole right in front of the linear lifting module,

step three, the linear lifting module starts to lift and operate from the zero position, the material pushing plate drives the upper pressing disc to lift, the uppermost disc part on the fixed base disc group touches the correlation sensor, the linear lifting module stops after decelerating and operating for the height of one disc part, the disc parts are sent to the set height and counted,

step four, the industrial robot grabs the topmost disc part,

step five, the linear lifting module is lifted again, the process is circulated until all the disc parts on the same group of fixed base disc set and the guide rod are grabbed,

and step six, resetting the linear lifting module, returning to the zero position, operating the intermittent motion mechanism, rotating the intermittent rotating disc, rotating the next adjacent group of fixed base disc group and the guide rod to the position of the through hole right in front of the linear lifting module, and recycling the step three and the step four.

Control system adopts two kinds of modes of controlling of manual control procedure and automatic operation procedure, make control more nimble, proximity switch's design, the running stroke of strict control straight line promotion module, combine correlation sensor's use, it is more accurate to make its delivery disk class part location, thereby can avoid the removal of disk class part to lead to the condition that industrial robot error snatched to appear, guarantee whole feeding process's smoothness nature and continuity, whole PLC control system safety and stability in the operation engineering, reliable high efficiency, satisfy enterprise automated production's demand, reduce manpower resources's use, accelerate production efficiency, and the saving production cost.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic perspective view of the low bed base, the elevation feeding mechanism and the intermittent motion mechanism of the present invention;

FIG. 3 is a schematic diagram of a three-dimensional explosion structure of the low bed base, the lifting and feeding mechanism and the intermittent motion mechanism of the present invention;

FIG. 4 is a schematic perspective view of the rotary bin mechanism of the present invention mounted on an intermittent rotary disc;

FIG. 5 is a schematic diagram of a three-dimensional explosion structure of the elevating and feeding mechanism of the present invention;

fig. 6 is a schematic diagram of a three-dimensional explosion structure of the rotary bin mechanism of the present invention;

FIG. 7 is a schematic perspective view of the horizontal conveying mechanism, the reversing mechanism and the turnover hopper mechanism of the present invention in an initial state during movement;

FIG. 8 is a schematic view of a system architecture for interfacing the PLC control system and HMI touch screen of the present invention;

FIG. 9 is a manual program operating interface of an HMI touch screen of the present invention;

fig. 10 is a flowchart of the operation state of the automatic control program of the present invention.

Detailed Description

In order to make the technical means, the original features, the achieved objects and the effects of the present invention easily understood, the present invention will be further described with reference to the following embodiments, wherein the cam divider is prior art, and the working principle thereof is not specifically described in the present embodiment.

The automatic turntable bin for the disc parts of the low-lathe-bed equipment, as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 6, comprises a low-lathe-bed base 1, a lifting feeding mechanism 2, an intermittent motion mechanism 3 and a rotary bin mechanism 4, wherein the low-lathe-bed base 1 is of a box-type cabinet body structure, the intermittent motion mechanism 3 is installed in the box-type low-lathe-bed base 1, and the rotary bin mechanism 4 is installed at the top of the low-lathe-bed base 1. The circuit connection of the control system of the whole equipment can be connected in the low bed body base 1, so that the circuit is prevented from being exposed outside to influence the use and influence the safety of a processing area. Intermittent motion mechanism 3's effect is exactly to drive rotatory feed bin mechanism 4 and is regularity, intermittent type nature rotation, and the rotational frequency of 2 cooperation intermittent motion mechanisms of lift feeding mechanism 3 promotes the dish class part 5 on the rotatory feed bin mechanism 4 of low level and carries to the high level, and the industrial robot of being convenient for can snatch the within range and to the automatic feeding plate class 5 parts of machine tool.

The intermittent motion mechanism 3 comprises an alternating current motor 30, a cam divider 31 and an intermittent rotating disk 32, a central hole is formed in an upper plane plate 11 of the low-lathe-bed base 1, an input shaft of the cam divider 31 is connected to the alternating current motor 30, the whole cam divider 31 and the alternating current motor 30 are located in the low-lathe-bed base 1, an index plate 33 of the cam divider 31 penetrates through the central hole to protrude out of the upper plane plate 11 of the low-lathe-bed base 1, and the intermittent rotating disk 32 is rigidly connected to the index plate 33.

The rotary bin mechanism 4 comprises a fixed base plate group 40 and guide rods 41 which are arranged on the intermittent rotary disk 32 by taking a central hole as an axis, wherein three guide rods 41 are arranged on one fixed base plate group 40, the three guide rods 41 are uniformly distributed around the axis of the fixed base plate group 40, disk parts 5 are sleeved on the guide rods 41 and are sequentially stacked on the fixed base plate group 40 in an overlapping mode, the number of the fixed base plate groups 40 is equal to that of cam rollers on the index plate 33, and the interval included angles are the same. In the design of the invention, 8 fixed base disc groups 40 are arranged on one intermittent rotating disc 32 in a rotating way, 8 equally-divided cam rollers are arranged on the dividing disc 33, and the distribution angle of the 8 cam rollers is the same as that of the fixed base disc groups 40, namely when the cam rollers are driven by a grooved wheel shaft of the cam divider 31 to rotate for an angle of one station, the fixed base disc groups 40 operate for the same angle.

Preferably, the fixed base plate group 40 comprises a lower base plate 401, a middle adjusting plate 402 and an upper pressing plate 403 which are stacked in sequence, the lower base plate 401 is provided with three guide rail grooves 4011 extending from the edge of the lower base plate to the central axis thereof, and the lower ends of the three guide rods 41 are respectively installed in the three guide rail grooves 4011 for clamping; three arc-shaped bar holes 4021 for the guide rod 41 to pass through are formed in the middle adjusting disc 402, and the three arc-shaped bar holes 4021 are in a vortex-shaped rotation direction along the central axis of the middle adjusting disc 402; three linear bar holes 4031 for the guide rod 41 to pass through are formed in the upper pressing disc 403, and the positions of the guide rail groove 4011, the arc bar holes 4021 and the linear bar holes 4031 are communicated up and down. When the disc part 5 is installed, the lower base plate 401 is fixed on the intermittent rotating disc 32, then the bottom of the guide rod 41 slides inwards from the edge of the guide rail groove 4011, because the matching is tight, a rubber hammer can be used for hammering in during installation, then the middle adjusting disc 402 is sleeved downwards from the top of the guide rod 41, at this time, the disc part 5 can be taken out to compare the distance between the three guide pipes, the disc part 5 can be sleeved in, when the disc part 5 cannot be sleeved in, the guide rod 41 is moved, the middle adjusting disc 402 is rotated, the guide rod 41 slides in the arc strip hole 4021 for fine adjustment, after the disc part is adjusted in place, the upper pressing disc 403 is sleeved, the guide rod 41 can only move radially but cannot rotate due to the straight strip hole 1, then the upper pressing disc 403 has the function of fixing the positions between the three guide rods 41, and the disc parts 4035 can be stacked upwards sequentially along the guide rod 41 without dislocation.

The lifting feeding mechanism 2 comprises a lifting support frame 20, a servo motor 21, a linear lifting module 22 and a material pushing plate 23, a through hole 12 is further formed in an upper plane plate 11 of the low-lathe-body base 1, when the cam divider 31 stops, one group of fixed bottom disc sets 40 are arranged in the middle of the through hole 12, the lifting support frame 20 is installed on the upper plane plate 11 of the low-lathe-body base 1, the side position of the through hole 12 on the other side, away from the fixed bottom disc set 41, of the lifting support frame 20 is located, and the linear lifting module 22 is installed on the lifting support frameIn the step 20, the material pushing plate 23 is mounted on the linear lifting module 22 to be lifted and lowered, the servo motor 21 is mounted at the bottom of the linear lifting module 22 to drive the linear lifting module to move up and down, and the servo motor 21 is located inside the box-type low-lathe-bed base 1, and when the material pushing plate 23 is lifted, the material pushing plate passes through the through hole 12 from below the upper plane plate 11 of the low-lathe-bed base 1 to drive the fixed bottom disc group 40 to be lifted vertically along the guide rod 41. The main parameter chosen by the servo motor 21 is the torque, which should be sufficient to lift the disc-like part 5. The maximum diameter phi of a single material bin for containing a workpiece is 120mm, and the height of the guide rod 41 is 550 mm. The material of the disc type part 5 is calculated by steel parts, and the maximum lifting load is about 194 kg. Servo motor 21 requires torque T-M-g-PB/2 pi-194 kgx9.8m/s²2 × 0.005mm/6.28 — 1.51N.M (M is the lifting load mass, G is the gravitational acceleration, and PB is the ball screw pitch). The linear lifting module 22 itself has a certain weight and the lifting module also has a certain acceleration during starting and lifting, calculated as 3 times the rated torque, i.e. about 4.5N.M torque is required. On the premise of meeting the safety guarantee of functional requirements, the method is considered from the aspects of familiarity and economy of enterprises. A Tadada corporation servo, ECMA Low inertia AC servo ECMA-C2-1010ES, configured with drive ASD-B2-1021. The output torque was 6.37N.M and the power was 1 kw.

Preferably, the intermittent rotary disk 32 between two adjacent groups of fixed base disk groups 40 is provided with a recessed slot 320 recessed towards the central hole direction, the plurality of recessed slot 320 divides the peripheral section of the intermittent rotary disk 32 into the same number of bearing convex blocks 321 as the fixed base disk groups 40, and 8 fixed base disk groups 40, then there are 8 bearing convex blocks 321, the bearing convex blocks 321 are integrally formed with the intermittent rotary disk 32, and the diameter of the lower base disk 401 and the diameter of the middle regulating disk 402 are narrower than the width of the bearing convex blocks 321, and the diameter of the upper pressing disk 403 is wider than the width of the bearing convex blocks 321, so that when the material pushing plate 23 ascends, only the upper pressing disk 403 with the largest diameter is lifted, the fixed base disk groups 40 on which the plurality of disk-like parts 5 are stacked, and the guide rod 41 can not be displaced after the upper pressing disk 403 is lifted.

Preferably, the section of the material pushing plate 23 is U-shaped, the closed bottom end of the U-shaped material pushing plate 23 is installed on the linear lifting module 22, the open end of the U-shaped material pushing plate 23 faces the direction of the bearing protrusion block 321, and the width of the gap between the open ends of the U-shaped material pushing plate 23 is greater than the width of the bearing protrusion block 321 and less than or equal to the diameter of the upper pressing disc 403. In addition, the supporting plates are further arranged on the symmetrical inner side walls of the U-shaped material pushing plate 23, after the material pushing plate 23 lifts and jacks the upper pressing disc 403, the supporting plates increase a supporting force at the bottom of the upper pressing disc 403, and the phenomenon that the linear lifting module 22 is deviated in lifting height due to the fact that the linear lifting module slides downwards after clamping the upper pressing disc 403 is avoided, and therefore the manipulator cannot be positioned and grabbed.

In the preferred embodiment of the present invention, a stressed supporting column 13 (as shown in fig. 3) surrounding the index plate 33 for one circle is further disposed between the intermittent rotary disk 32 and the upper plane plate 11 of the low-bed base 1, the upper end of the stressed supporting column 13 is in the shape of a bead, the upper top surface of the stressed supporting column 13 is in contact with the lower bottom surface of the intermittent rotary disk 32, and in order to ensure the strength and bearing capacity of the intermittent rotary disk 32 after all the fixed bottom disk groups 40 are filled with the disk-like parts 5, the stressed supporting column 13 is supported at a position of one-half diameter of the intermittent rotary disk 32, and also ensure the balance of the whole intermittent rotary disk 32 after the parts of one of the fixed bottom disk groups 40 are grabbed, so as to avoid tilting to one side with a large.

In a preferred embodiment of the present invention, the linear lifting module 22 includes a ball screw 220, a linear slide rail 221, a screw slider 222 and a linear slider 223, the linear slide rail 221 is fixed on the lifting support frame 20, the ball screw 220 is connected to an output shaft of the servo motor 21 through a coupling, the screw slider 222 is sleeved on the ball screw 220, a middle portion of the linear slider 223 is fixed on the screw slider 222, two side portions are clamped on the linear slide rail 221 to slide up and down, and a closed bottom end portion of the U-shaped material pushing plate 23 is fixed on the linear slider 223. When the servo motor 21 drives the ball screw 220 to rotate, the screw rod slide block 222 is transmitted by the ball screw 220 to move up and down, and further drives the connected linear slide block 223 to move, the linear slide rail 221 serves as a guide rail of the linear slide block 223 to control the path stroke of the linear slide block 223, the material pushing plate 23 is continuously lifted by the servo motor 21 in a first stage and a second stage in the path stroke, the upper pressing disc 403 and the disc parts 5 of the upper pressing disc are driven to ascend in a first stage and move to a set height for the industrial robot to grab, and then the matching movement among the mechanism parts is completed by combining a control system and a control program, so that the purpose of processing from a low position to a high position of the disc parts 5 is achieved, and the design difficulty of an automatic feeding and discharging workstation of a.

A control system that is used for automatic carousel feed bin of dish class part of low lathe bed equipment, including PLC control system, HMI touch-sensitive screen 7, correlation sensor 6, proximity switch 8, operating button, robot input signal, robot output signal and signal lamp, adopt RS485 communication protocol intercommunication between HMI touch-sensitive screen and the PLC control system, correlation sensor, proximity switch, operating button and robot input signal access PLC control system's input, servo motor 21, alternating current motor 30, signal lamp and robot output signal connect PLC control system's output, as shown in figure 7.

The HMI touch screen 7 is arranged on a touch pad for a human-computer interaction interface, the control button is arranged on the touch pad, and the touch pad is fixed on the upper plane plate 11 of the low bed body base 1 through a support upright 71. Manual manipulation interface on HMI touchscreen 7 as shown in fig. 8, the HMI touchscreen employs the welan TP3071 IH. The design is programmed using the easy builder pro software. The HMI mainly comprises a startup picture, a manual picture, an IO check picture, a parameter setting picture, an automatic operation picture, an alarm picture and a help picture.

The correlation sensor 6 is divided into a correlation sensor transmitting end 60 and a correlation sensor receiving end 61, the correlation sensor transmitting end 60 and the correlation sensor receiving end 61 are respectively positioned at the left and right symmetrical sides of the disk part 5 at the highest position on the linear lifting module 22 by taking the linear lifting module 22 as a symmetrical central line, and are kept flush. The correlation sensor 6 is mainly used for detecting that the disc part 5 rises to the right position and determining the lifting height of the disc part 5, and the industrial robot also can send a signal to the control system when grabbing the disc part 5 at the middle vacant position, so that the servo motor 21 is driven to operate to enable the linear lifting module 22 to lift the disc part 5 with one height, and the operation is circulated so as to realize the purpose of continuous feeding.

The proximity switch 8 is divided into an upper limit sensor, an original point sensor and a lower limit sensor which are sequentially installed on the linear lifting module 22 from top to bottom, the upper limit sensor is used for warning the highest point of the operation of the material pushing plate 23, the original point sensor is used for detecting the positions of the linear lifting module 22 and the material pushing plate 23 when the linear lifting module 22 and the material pushing plate 23 reset to the zero point, the lower line sensor is used for warning the lowest point of the operation of the material pushing plate 23, the upper line sensor and the lower line sensor are matched with each other to limit the operation stroke of the material.

Preferably, the requirements of safety, stability, high efficiency, convenient operation and simple maintenance of the equipment are ensured according to the actual requirements of the mechanical, electrical, safety, mechanical and electrical equipment standard GB5226.1-2008/ICE 60204-1:2005 in combination with enterprises. The system selects a PLC as a control core, and an HMI touch screen is a human-computer interaction interface. The interior of the PLC control system is divided into a manual control program and an automatic operation program, and the programs are written by adopting a mode of combining a ladder diagram and SFC flow chart programming, as shown in figure 9.

Preferably, a manual control program is operated on the HMI touch screen 7, and the manual control program includes a data processing module, an alarm module, a rotating disk control module, a lifting module control module, a reset module, and an automatic state switching module.

Wherein, the data processing module is used for: the speed and the lifting height of the linear lifting module, the running distance of the touch proximity switch, the running speeds of the servo motor and the alternating current motor and the rotating angle of the intermittent rotating disk are stored and calculated.

The alarm module has the functions of: and when the material pushing plate runs to the position close to the switch, an alarm is given.

The rotating disc control module has the functions of: and controlling the angular displacement of the intermittent rotating disk according to the number of the fixed chassis groups.

The lifting module control module has the functions of: and controlling the operation mode of the linear lifting module.

The reset module has the functions of: and when the material pushing plate moves to the highest position of the linear lifting module, resetting to the lowest position. The automatic state switching module has the functions of: and switching to an automatic running program mode.

For the model selection problem of the PLC system, on the premise of meeting the functional requirements, stability and reliability, a large number of Mitsubishi FX3U series PLC hosts adopted on the market are selected according to the requirements of a system framework and the familiarity of enterprise personnel. According to the input and output requirements, 8 bits of digital input, 1 bit of pulse output and 4 bits of digital output are selected, and the communication with the HMI adopts an RS485 communication mode. For the later expansion and upgrading of equipment, an FX3U-16MT host of Mitsubishi corporation is selected, digital input 8 bits and digital output 8 bits are selected, RS485 communication and RS232 communication are compatible, 100kHZ three-way pulse output is realized, and the expansibility is good.

Preferably, the operation button is divided into a start switch, a stop switch and a pause switch, and the operation control method of the automatic turntable bin for disc parts after starting the automatic operation program comprises the following steps, wherein the operation control method is controlled by a PLC control program, as shown in fig. 10:

step one, clicking a starting switch, entering an automatic operation program mode, initializing after the automatic operation is started, resetting an intermittent motion mechanism 3 and a lifting feeding mechanism 2, returning to a zero position,

step two, the fixed base plate group 40 and the guide rod 41 which are filled with the disc parts 5 in the first group run to the position of the through hole 12 right in front of the linear lifting module 22,

step three, the linear lifting module 22 starts to lift and operate from the zero position, the material pushing plate 23 drives the upper pressing disc 403 to lift, the uppermost disc part 5 on the fixed base disc group 40 touches the correlation sensor 6, the linear lifting module 22 stops after decelerating and operating by the height of one disc part 5, the disc parts 5 are sent to the set height and counted,

step four, the industrial robot grabs the uppermost disc part 5,

step five, the linear lifting module 22 is lifted again, and the process is circulated until all the disc parts 5 on the same group of the fixed base disc set 40 and the guide rod 41 are grabbed,

and step six, resetting the linear lifting module 22, returning to the zero position, operating the intermittent motion mechanism 3, rotating the intermittent rotating disk 32, rotating the next adjacent group of fixed base disk groups 40 and the guide rod 41 to the position of the through hole 12 right in front of the linear lifting module 22, and recycling the step three and the step four.

The diameter range of the tray type parts 5 designed by the invention is phi 60 to phi 120mm according to the enterprise requirements.

The automatic turntable stock bin for the disc parts of the low-lathe-bed equipment and the control system thereof are described in detail above. The description of the embodiments is only for the purpose of helping understanding the method of the present invention and the core idea thereof, and it should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.