Automatic material receiving device for CNC lathe

Abstract

The present invention proposes an automatic material feeder for a CNC lathe, comprising a material feeder box, the material feeder box is installed in the lathe, and a material feeder mechanism is movably provided on the upper part of the material feeder box, a flow guide mechanism is provided on the lower part of the material feeder box, and a sewage discharge mechanism is provided on the bottom of the material feeder box; the material feeder mechanism and the flow guide mechanism are both connected to the lathe operation panel. The present invention collects workpieces when the lathe cuts the workpiece, and there is no need to manually break the blank, which reduces the manual operation part, realizes the overall fully automated process of material feeding and transmission, greatly improves the production efficiency, has a compact overall structural design, is easy to disassemble and assemble, and has a simple control method, which avoids the situation of collision during the existing manual material feeding.

Description

Technical Field

[0001] The invention relates to the technical field of material feeding of numerically controlled lathes, and in particular to an automatic material feeder for numerically controlled lathes. Background Art

[0002] CNC lathes and turning centers are high-precision, high-efficiency automated machine tools. With a multi-station turret or a power turret, the machine tool has a wide range of processing technology performance, and can process linear cylinders, oblique cylinders, arcs, and various threads, grooves, worms and other complex workpieces. CNC lathes can automatically process parts by compiling corresponding CNC programs. After the programmer compiles the program, it is input into the CNC device to command the machine tool to achieve high-precision automatic processing. At present, in the production and processing of CNC lathes, it is still necessary to manually collect the workpieces that have been cut. On the one hand, the efficiency of manual collection is slow, and on the other hand, the workpieces are prone to be damaged during the manual collection process, which affects the processing quality of the workpieces. Summary of the invention

[0003] In view of the technical problem that the current production and processing of CNC lathes still relies on manual collection of workpieces completed by cutting, on the one hand, the manual collection efficiency is slow, and on the other hand, the workpieces are easily damaged during the manual collection process, which affects the processing quality of the workpieces, the present invention proposes an automatic material collector for CNC lathes.

[0004] In order to solve the above problems, the technical solution of the present invention is achieved as follows:

[0005] An automatic material receiver for a numerically controlled lathe comprises a material receiving box, which is installed in the lathe and has a material receiving mechanism movably arranged on the upper part of the material receiving box, a flow guiding mechanism arranged on the lower part of the material receiving box, and a sewage discharge mechanism arranged on the bottom of the material receiving box; the material receiving mechanism and the flow guiding mechanism are both connected to the lathe operation panel.

[0006] Preferably, a material feeding assembly is arranged outside the lathe and below the material receiving box, and the material feeding assembly is connected to the lathe operation panel.

[0007] Preferably, an upper bottom plate and a lower bottom plate are provided in the material receiving box, and both the upper bottom plate and the lower bottom plate are fixed at the bottom of the material receiving box, the upper bottom plate is movably connected to the material receiving mechanism, the lower bottom plate is connected to the lathe through a mounting flange, a flow guide mechanism is provided at the lower part of the lower bottom plate, a sewage discharge mechanism is provided at the bottom of the lower bottom plate, and a material feeding assembly is provided below the lower bottom plate and outside the lathe.

[0008] Preferably, the feeding assembly includes a conveyor belt bracket, a conveyor wheel is provided on the conveyor belt bracket, a conveyor belt is sleeved on the conveyor wheel and the conveyor wheel is connected to the output end of the conveyor motor through a belt; an infrared sensor is provided on the conveyor belt bracket, and the infrared sensor and the conveyor motor are both connected to the lathe operation panel.

[0009] Preferably, the material receiving mechanism includes a cover and a cylinder, the cover is movably arranged on the upper part of the upper base plate by a hinge and the cover is located directly below the main shaft inside the lathe, the cover is movably connected to the cylinder, the cylinder is installed on the upper base plate through a cylinder bracket and the cylinder is movably arranged on the cylinder bracket, and the cylinder is connected to the lathe operation panel.

[0010] Preferably, a hinged seat is provided at the rear of the cover, and the hinged seat is movably connected to the telescopic end of the cylinder through a support rod and an elbow joint.

[0011] Preferably, the flow guiding mechanism comprises a vibrator, which is mounted on the lower part of the lower base plate and connected to the lathe operation panel.

[0012] Preferably, the sewage discharge mechanism comprises a sewage discharge trough and sewage discharge holes, the sewage discharge trough is located below the sewage discharge holes and the sewage discharge holes are evenly arranged at the bottom of the lower base plate.

[0013] Preferably, a PLC controller is provided in the lathe operating panel, and the PLC controller is respectively connected to the cylinder in the material receiving mechanism, the vibrator in the flow guiding mechanism, and the infrared sensor and the conveying motor in the material feeding assembly through corresponding relays.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention collects workpieces when the lathe cuts them. A material receiving box is added inside the lathe, and a movable flip cover is provided on the upper part of the material receiving box, so that the workpieces cut by the lathe can be quickly collected. At the same time, the cover is closed after collection. During the workpiece processing stage, the cutting fluid can be prevented from entering the material receiving box, and the iron filings can be reduced from falling into the material receiving box. There is no need to manually break the blank, which reduces the manual operation part.

[0016] 2. The present invention arranges a conveying component outside the lathe. When the workpiece in the receiving box falls onto the conveying belt through the lower bottom plate, the infrared sensor detects the workpiece, and the conveying motor starts to drive the workpiece to move, thereby realizing a fully automated process of receiving and transmitting the material, greatly improving the production efficiency. The overall structure is compact in design, easy to disassemble and assemble, and has a simple control method, thus avoiding the situation of collision and damage caused by existing manual receiving of materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is the front view of the material receiving box in the present invention.

[0019] Figure 2 It is a side view of the material receiving box in the present invention.

[0020] Figure 3 It is the control ladder diagram of the cylinder in the present invention.

[0021] Figure 4 It is the control ladder diagram of the vibrator in the present invention.

[0022] Figure 5 It is the external wiring diagram of the cylinder in the present invention.

[0023] Figure 6 It is the external wiring diagram of the vibrator in the present invention.

[0024] In the figure, 1 is a receiving box, 2 is an upper base plate, 3 is a lower base plate, 4 is a cover, 5 is a mounting flange, 6 is a cylinder, 7 is a hinge, 8 is a vibrator, 9 is a cylinder bracket, and 10 is a support rod. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0026] like Figure 1 As shown, an automatic material receiver for a CNC lathe comprises a material receiving box 1, which is installed in the lathe. The material receiving box assembly is installed in the internal space of the lathe and is located below the main shaft, forming an angle of 30 degrees with the horizontal plane. A material receiving mechanism is movably arranged on the upper part of the material receiving box 1, and material receiving and sealing are achieved by adjusting the material receiving mechanism to close or open. A material feeding assembly is arranged outside the lathe and below the material receiving box 1, and the material feeding assembly is connected to the lathe operation panel. A flow guide mechanism is arranged at the lower part of the material receiving box 1, and a sewage discharge mechanism is arranged at the bottom of the material receiving box 1; the material receiving mechanism and the flow guide mechanism are both connected to the lathe operation panel.

[0027] like Figure 2As shown, the material receiving box 1 is provided with an upper bottom plate 2 and a lower bottom plate 3, the material receiving box is welded to the upper bottom plate and the lower bottom plate as a whole, there are 6 mounting holes on the upper bottom plate, which are respectively used to connect the cylinder bracket and the hinge, the upper bottom plate 2 and the lower bottom plate 3 are both fixed to the bottom of the material receiving box 1, the upper bottom plate 2 is movably connected to the material receiving mechanism, the lower bottom plate 3 is connected to the lathe through the mounting flange 5, the mounting flange is welded to the left end face of the material box, the left end face of the material box is at an angle of 60 degrees to the horizontal, a baffle is installed on the front end face of the lathe, 10 studs are evenly distributed around the baffle, and 5 studs are arranged around the mounting flange. The material receiving box is fixed on the inner side of the front end surface of the lathe by a mounting flange. The material receiving box is inclined upward and forms an angle of 30 degrees with the horizontal. When the lid is opened, it is directly below the main shaft of the lathe. A flow guide mechanism is arranged at the lower part of the lower base plate 3, and a sewage discharge mechanism is arranged at the bottom of the lower base plate 3. The base plate has rectangular grooves and evenly distributed circular holes for discharging the cutting fluid entering the device. The sewage discharge mechanism includes a sewage discharge trough and sewage discharge holes. The sewage discharge trough is located below the sewage discharge holes and the sewage discharge holes are evenly arranged at the bottom of the lower base plate 3. The lower base plate has drainage holes evenly distributed with a diameter of 3 mm and two drainage troughs with a width of 1 mm.

[0028] A material feeding assembly is arranged below the lower base plate 3 and outside the lathe, and the material feeding assembly includes a conveyor belt bracket, a conveyor wheel is arranged on the conveyor belt bracket, a conveyor belt is sleeved on the conveyor wheel, and the conveyor wheel is connected to the output end of the conveyor motor through a belt; an infrared sensor is arranged on the conveyor belt bracket, and the infrared sensor and the conveyor motor are both connected to the lathe operation panel.

[0029] The material receiving mechanism includes a cover 4 and a cylinder. The cover 4 is movably arranged on the upper part of the upper base plate 2 through a hinge 7 and the cover 4 is located directly below the main shaft inside the lathe. The upper base plate and the cover are fixed as a whole through a hinge. The cover can rotate around the axis of the hinge. The cover can rotate at a maximum angle of about 120 degrees. The hinge is used to connect the upper base plate and the cover. The cover is completely closed during the workpiece processing to prevent the cutting fluid from entering the material receiving box. When the workpiece is about to be cut off, the cover is opened to complete the material receiving function, and the cover forms an angle of 30 degrees with the horizontal plane; the cylinder is in a fully retracted state, and the push rod of the cylinder is extended to drive the cover to rotate counterclockwise. When the push rod is extended to the maximum stroke, the upper edge of the cover is close to the upper edge of the material box. When the bottom surface of the cover is in a horizontal state, the workpiece to be cut can be received, and it has a maximum material receiving area. The cover is in a fully closed working state, which is used for the workpiece processing stage. It can prevent the cutting fluid from entering the material receiver and reduce the iron filings falling on the material receiver.

[0030] The cover 4 is movably connected to the cylinder. There are two holes for connecting air pipes on the cylinder body. The extension and retraction of the push rod can be controlled by connecting a 0.7MPa air source. A hinged seat is arranged at the rear of the cover 4. The hinged seat is movably connected to the telescopic end of the cylinder through a support rod 10 and an elbow joint. The cylinder is mounted on the upper base plate 2 through a cylinder bracket 9 and the cylinder is movably arranged on the cylinder bracket 9 through a cylinder mounting seat. The cylinder mounting seat is U-shaped with coaxial through holes on both sides. Two studs pass through the through holes and are fixed to the threaded holes of the cylinder body. The cylinder can rotate with the stud as the axis. The cylinder is fixed to the cylinder bracket through two pins so as to rotate around the two pins at a certain angle. The cylinder consists of a cylinder body and a push rod. The push rod head is equipped with an elbow joint. When the cylinder push rod is extended, the cover can be pushed to rotate counterclockwise around the hinge of the hinge. When the push rod reaches the maximum stroke, the cover can be completely closed. When the push rod is retracted, the cover can be pulled to rotate clockwise around the hinge of the hinge. When the push rod is retracted to the starting position, the cover can be fully opened. The cylinder is connected to the lathe operation panel.

[0031] The guide mechanism includes a vibrator 8, which is installed at the lower part of the lower base plate 3 and is connected to the lathe operation panel; a PLC controller is arranged in the lathe operation panel, and the PLC controller is connected to the cylinder in the material receiving mechanism, the vibrator 8 in the guide mechanism, and the infrared sensor and the conveying motor in the material feeding assembly through corresponding relays. During operation, the opening and closing of the lid can be achieved by controlling the extension and retraction of the cylinder.

[0032] like Figure 3 and Figure 4 The following are the control ladder diagrams of the cylinder and vibrator. M100.0 corresponds to the material receiving box switch, and M100.1 corresponds to the vibrator control. Figure 5 and Figure 6 The diagrams are the external wiring diagrams of the cylinder and the vibrator. The two points correspond to the external wiring ports. In actual use, as long as the code is written into the processing program, the automatic control relay selection RXM2LB2BD, IN1, IN2, corresponds to the output interface of the software control M100.0, M100.1 respectively; 24V and GND are connected to the power supply of the lathe; when the opening operation is performed, the high level state of M100.0 and M100.1 controls the relays K1 and K2 to close, so that the 24V power supply is directly added to the controlled equipment to achieve the purpose of powering on, and then control whether the equipment is powered on or not. The CNC lathe can enter the corresponding M code in the processing program. After the program is executed, the PLC input terminal receives the input signal, and the output terminal outputs the electrical signal to control the reversal of the two-position five-way solenoid valve, thereby changing the direction of the gas path, driving the cylinder piston rod to extend and retract, and finally achieving the purpose of controlling the opening and closing of the material receiver cover; similarly, the lathe can enter the corresponding M code, and control the on and off of the two-position two-way solenoid valve through the PLC to achieve the purpose of controlling the vibration and stop of the vibrator.

[0033] During the processing of the workpiece of the material receiver, the cover is in a closed state; when the processing is about to be completed, that is, when the last 1-2mm is cut off, the corresponding M code is executed to control the cover to open, and the workpiece falls on the cover after being cut; then the corresponding M code is executed to control the cover to close, and the workpiece immediately rolls down the slope of the bottom plate; at the same time, the corresponding M code is executed to control the vibrator to turn on to prevent the workpiece from hanging on the sponge gasket due to the sharp corner in the center; after the workpiece is sent out from the notch on the baffle, it falls on the conveyor belt fixed on the front end face of the lathe; after the sensor detects the workpiece, the conveyor belt starts, and the workpiece is transmitted to a certain distance to the right, completing the process of material receiving and transmission.

[0034] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic material feeder for a CNC lathe, characterized in that: The material receiving box (1) comprises a material receiving box (1), the material receiving box (1) is installed in a lathe, and a material receiving mechanism is movably provided on the upper part of the material receiving box (1), a flow guiding mechanism is provided on the lower part of the material receiving box (1), and a sewage discharge mechanism is provided on the bottom of the material receiving box (1); the material receiving mechanism and the flow guiding mechanism are both connected to the lathe operation panel; A material feeding assembly is arranged outside the lathe and below the material receiving box (1), and the material feeding assembly is connected to the lathe operation panel; An upper bottom plate (2) and a lower bottom plate (3) are arranged in the material receiving box (1), the upper bottom plate (2) and the lower bottom plate (3) are both fixed to the bottom of the material receiving box (1), the upper bottom plate (2) is movably connected to the material receiving mechanism, the lower bottom plate (3) is connected to the lathe via a mounting flange (5), a flow guide mechanism is arranged at the bottom of the lower bottom plate (3), a sewage discharge mechanism is arranged at the bottom of the lower bottom plate (3), and a material feeding assembly is arranged below the lower bottom plate (3) and outside the lathe; The material receiving box (1) forms an angle of 30 degrees with the horizontal plane, and the left end surface of the material receiving box (1) forms an angle of 60 degrees with the horizontal plane; The flow guiding mechanism comprises a vibrator (8), the vibrator (8) being mounted on the lower part of the lower base plate (3) and the vibrator (8) being connected to the lathe operation panel; The material receiving mechanism comprises a cover (4) and a cylinder, the cover (4) being movably arranged on the upper part of the upper base plate (2) via a hinge (7) and the cover (4) being located directly below the main shaft inside the lathe, the cover (4) being movably connected to the cylinder, the cylinder being mounted on the upper base plate (2) via a cylinder bracket (9) and the cylinder being movably arranged on the cylinder bracket (9), and the cylinder being connected to the lathe operation panel; The rear part of the cover (4) is provided with an articulated seat, which is movably connected to the telescopic end of the cylinder via a support rod (10) and an elbow joint.

2. The automatic material receiving device for CNC lathe according to claim 1, characterized in that: The feeding assembly includes a conveyor belt bracket, a conveyor wheel is arranged on the conveyor belt bracket, a conveyor belt is sleeved on the conveyor wheel and the conveyor wheel is connected to the output end of the conveyor motor through a belt; an infrared sensor is arranged on the conveyor belt bracket, and the infrared sensor and the conveyor motor are both connected to the lathe operation panel.

3. The automatic material receiving device for CNC lathe according to claim 2, characterized in that: The sewage discharge mechanism comprises a sewage discharge trough and sewage discharge holes, the sewage discharge trough is located below the sewage discharge holes and the sewage discharge holes are evenly arranged at the bottom of the lower base plate (3).

4. The automatic material receiving device for CNC lathe according to claim 3, characterized in that: A PLC controller is arranged in the lathe operation panel, and the PLC controller is respectively connected to the cylinder in the material receiving mechanism, the vibrator (8) in the flow guiding mechanism, and the infrared sensor and the conveying motor in the material feeding assembly through corresponding relays.

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