Full-automatic arranging machine for powder metallurgy part machining

Abstract

The invention relates to the field of powder metallurgy, in particular to a full-automatic arranging machine for powder metallurgy part machining. The full-automatic arranging machine comprises a front mechanical arm, a deburring device, a rear mechanical arm, a powder blowing and grinding device and a material receiving disc. The front manipulator accurately moves towards the metallurgical powder pressing device, grabs the pressed blank, retreats, and executes downward movement operation in the retreating process, so that the A surface of the pressed blank is in close contact with the deburring device, and the preliminary grinding work of the pressed blank is completed; the front manipulator continues to move backwards until the front manipulator reaches the joint position with the rear manipulator, and the pressed blank is stably transferred to the rear manipulator; after the pressed blank is received, the rear manipulator executes an overturning action, so that a powder blowing and grinding device arranged below the rear manipulator can perform secondary grinding on the surface B of the pressed blank, and meanwhile, dust generated in the grinding process is blown away; and then the materials are accurately placed in a material receiving disc by a rear manipulator according to a preset arrangement sequence, so that the whole full-automatic arrangement process is completed.

Description

Technical Field

[0001] The present application relates to the field of powder metallurgy, and in particular to a fully automatic arranging machine for powder metallurgy parts processing. Background Art

[0002] Powder metallurgy is an industrial technology that produces metal powder or uses metal powder (or a mixture of metal powder and non-metallic powder) as raw material, and manufactures metal materials, composite materials and various types of products through forming and sintering.

[0003] Powder metallurgy technology has a series of advantages such as significant energy saving, material saving, excellent performance, high product precision and good stability, which is very suitable for mass production. In addition, some materials and complex parts that cannot be prepared by traditional casting methods and mechanical processing methods can also be manufactured by powder metallurgy technology, so it has received much attention from the industry.

[0004] Powder metallurgy pressing equipment is one of the key equipment in the powder metallurgy process. It is mainly used to press metal powder or a mixture of metal powder and non-metal powder in a mold to form a compact with a certain shape and size.

[0005] In actual production, powder metallurgy pressing equipment usually forms a complete powder metallurgy production line with powder preparation, sintering, post-processing and other equipment to achieve efficient and high-quality production of powder metallurgy products. Summary of the invention

[0006] In order to achieve efficient and high-quality production of powder metallurgy products, the present application provides a fully automatic arranging machine for powder metallurgy parts processing.

[0007] The fully automatic arrangement machine for powder metallurgy parts processing provided in this application adopts the following technical solution: A fully automatic arrangement machine for powder metallurgy parts processing, including a front manipulator, a deburring device, a rear manipulator, a powder blowing and grinding device and a receiving tray. The front manipulator is used to grab the pressed green sheet, move the green sheet to the deburring device, and direct the A side of the green sheet toward the deburring device. The deburring device is used to remove burrs from the compact. The rear manipulator is used to receive the green compact grasped by the front manipulator, flip the green compact, move the green compact to the powder blowing and polishing device, turn the B side of the green compact toward the powder blowing and polishing device, and place the green compact on the receiving tray. The powder blowing and grinding device is used for grinding the compact and blowing away the grinding debris.

[0008] By adopting the above technical solution, the metallurgical powder is pressed into a compact of a predetermined shape by a metallurgical powder pressing device; The front manipulator moves precisely toward the metallurgical powder pressing device and grabs the pressed green sheet. The front manipulator retreats and performs a downward movement operation during the retreat process, so that the A surface of the pressed green sheet is in close contact with the deburring device, thereby completing the preliminary grinding of the pressed green sheet. The front manipulator continues to move backward until it reaches the junction with the rear manipulator, and smoothly transfers the compact to the rear manipulator; After receiving the compact, the rear manipulator performs a flipping action, so that the powder blowing and grinding device arranged below it can perform secondary grinding on the B surface of the compact and blow away the dust generated during the grinding process at the same time; The compacts that have undergone secondary processing are accurately placed in the receiving tray by the rear robot according to the preset arrangement order, thus completing the entire fully automatic arrangement process.

[0009] Preferably, the deburring device comprises a bracket, a rotating disk and bristles. The turntable is rotatably connected to the bracket, and the rotation axis is vertical. The bristles are connected to the upper surface of the rotating disk.

[0010] By adopting the above technical solution, the pressed green body is in contact with the bristles, and the pressed green body and the bristles move relative to each other, and the bristles are used to remove burrs of the pressed green body.

[0011] Preferably, the deburring device further comprises a rotating shaft, a latch and a spring. The rotating shaft is coaxially connected to the lower surface of the rotating disk, and a sliding groove is arranged on the outer periphery of the rotating shaft. The sliding groove is spiral-shaped, and the rotating shaft is vertically slidably connected to the bracket. The latch is connected to the bracket, and the latch is embedded in the slide slot. The spring is connected between the bracket and the rotating shaft, and the spring enables the rotating shaft to have an upward movement tendency.

[0012] By adopting the above technical solution, the front manipulator performs a downward movement operation to bring the A surface of the pressed blank into close contact with the deburring device. During this process: the turntable and the rotating shaft both move downward relative to the bracket, the rotating shaft rotates, and the turntable and the brush rotate accordingly to fully remove the burrs.

[0013] The front manipulator moves backward, and after the front manipulator and the pressed blank are separated from the bristles, the spring drives the rotating shaft and the rotating disk to move upward and reset.

[0014] Preferably, the deburring device further comprises a driving rod and a supporting rod. The driving rod is vertically slidably connected to the bracket, and the upper end of the driving rod is used for the front manipulator to resist. The support rod is connected to the lower end of the driving rod, and the rotating shaft is rotatably connected to the support rod. The spring is connected between the supporting rod and the bracket.

[0015] By adopting the above technical solution, the front manipulator and the driving rod squeeze each other, cooperate with gravity to realize the downward movement of the rotating shaft, and avoid the transmission of force through the pressed billet and the bristles.

[0016] Preferably, the powder blowing and grinding device comprises a cylinder, a grinding wheel, and an air pipe. The grinding wheel is located in the cylinder. One end of the air pipe extends into the cylinder, the air outlet of the air pipe is higher than the grinding wheel, and the other end of the air pipe is used for connecting to an air source.

[0017] By adopting the above technical solution, the rear robot grabs the pressed green sheet and inserts it into the cylinder body. The pressed green sheet is polished in the cylinder body, and the air outlet of the air pipe ejects air. The grinding chips in the cylinder body move downward with the air flow, which is convenient for collecting the grinding chips and maintaining the cleanliness of the production environment.

[0018] Preferably, the powder blowing and polishing device further comprises a pneumatic rotary drive, The other end of the air pipe is used to connect to the exhaust port of the pneumatic rotary actuator, and the air inlet of the pneumatic rotary actuator is used to connect to the air source. The pneumatic rotary drive is used to drive the grinding wheel to rotate.

[0019] By adopting the above technical solution, the pneumatic rotary drive has a fast response and can be used in scenarios with frequent start and stop. The high-pressure gas first causes the pneumatic rotary drive to work to reduce the pressure, and the low-pressure gas is output from the air pipe outlet to reduce the gas flow rate. The low-speed airflow carries the wear debris to move, avoiding the high-speed airflow causing the wear debris to fly around.

[0020] Preferably, the powder blowing and polishing device further includes a solenoid valve and a controller. The solenoid valve is connected between the air source and the pneumatic rotary driver. The controller is used for controlling the solenoid valve.

[0021] By adopting the above technical solution, after the green compact enters the cylinder, the controller controls the solenoid valve to open, the pneumatic rotary driver works, and the air outlet of the air pipe sprays air to grind the B surface of the green compact, and at the same time blow away the dust on the A and B surfaces of the green compact; After grinding is completed, the controller controls the solenoid valve to close, the pneumatic rotary driver stops working, and the air outlet of the air pipe stops jetting.

[0022] Preferably, a plurality of air pipes are provided at intervals along the circumference of the cylinder.

[0023] Preferably, it also includes a collector, The collector is used to collect powder from the deburring device and the powder blowing and grinding device.

[0024] By adopting the above technical solution, the dust generated during the grinding process can be efficiently collected and recycled, and the cleanliness of the production environment can be maintained.

[0025] Preferably, it also includes a conveyor belt, The conveyor belt is used to drive the receiving tray to move along the X direction. The rear manipulator is used to drive the compact to move in the YZ plane, which is perpendicular to the X direction.

[0026] By adopting the above technical solution, the conveyor belt and the rear robot cooperate with each other so that the multiple pressed blanks on the receiving tray are arranged in a rectangular array and are automatically arranged.

[0027] In summary, the present application includes at least one of the following beneficial technical effects: The metallurgical powder is pressed into a compact of a predetermined shape by a metallurgical powder pressing device; The front manipulator moves precisely toward the metallurgical powder pressing device and grabs the pressed green sheet. The front manipulator retreats and performs a downward movement operation during the retreat process, so that the A surface of the pressed green sheet is in close contact with the deburring device, thereby completing the preliminary grinding of the pressed green sheet. The front manipulator continues to move backward until it reaches the junction with the rear manipulator, and smoothly transfers the compact to the rear manipulator; After receiving the compact, the rear manipulator performs a flipping action, so that the powder blowing and grinding device arranged below it can perform secondary grinding on the B surface of the compact and blow away the dust generated during the grinding process at the same time; The compacts that have undergone secondary processing are accurately placed in the receiving tray by the rear robot according to the preset arrangement order, thus completing the entire fully automatic arrangement process; The front manipulator performs a downward movement operation to closely contact the A surface of the pressed blank with the deburring device. During this process: the turntable and the rotating shaft move downward relative to the bracket, the rotating shaft rotates, and the turntable and the brush rotate accordingly to fully remove the burrs; The rear robot grabs the pressed green sheet and inserts it into the cylinder. The pressed green sheet is polished in the cylinder. Air is ejected from the air outlet of the air pipe, and the grinding chips in the cylinder move downward with the air flow, which is convenient for collecting the grinding chips and maintaining the cleanliness of the production environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of a fully automatic arranging machine for powder metallurgy parts processing.

[0029] Figure 2 It is a schematic diagram of the front robot and deburring device.

[0030] Figure 3 It is a schematic diagram of a powder blowing and grinding device.

[0031] Explanation of the reference numerals: 1. front manipulator; 2. deburring device; 21. bracket; 22. turntable; 23. bristles; 24. rotating shaft; 241. slideway; 25. driving rod; 26. supporting rod; 27. spring; 3. rear manipulator; 4. powder blowing and grinding device; 41. cylinder; 42. grinding wheel; 43. air pipe; 5. receiving tray; 6. conveyor belt; 7. collector. DETAILED DESCRIPTION

[0032] The present application is further described in detail below in conjunction with the accompanying drawings.

[0033] Powder metallurgy pressing equipment is one of the key equipment in the powder metallurgy process. It is mainly used to press metal powder or a mixture of metal powder and non-metal powder in a mold to form a compact with a certain shape and size.

[0034] Reference Figure 1 The embodiment of the present application discloses a fully automatic arrangement machine for powder metallurgy parts processing, including a front manipulator 1, a deburring device 2, a rear manipulator 3, a powder blowing and grinding device 4 and a receiving tray 5.

[0035] The front manipulator 1 is used to accurately move toward the metallurgical powder pressing device and grab the compact; the front manipulator 1 is used to move backward to move the compact to just above the deburring device 2; the front manipulator 1 is used to move downward to make the A surface of the compact in close contact with the deburring device 2.

[0036] It should be noted that the front robot 1 and the rear robot 3 can take the compact by means of suction cups, electromagnets or clamps, etc., depending on the material and shape of the compact.

[0037] Reference Figure 1 and Figure 2 The deburring device 2 is used to remove burrs from the compact. The deburring device 2 includes a bracket 21, a rotating disk 22 and bristles 23. The rotating disk 22 is horizontal and rotates around its own axis and is connected to the bracket 21. The bristles 23 are connected to the upper surface of the rotating disk 22 and are used to contact the compact.

[0038] When the A surface of the green compact contacts the bristles 23 , the turntable 22 rotates to remove burrs of the green compact using the bristles 23 .

[0039] The deburring device 2 further includes a rotating shaft 24 , a latch, a driving rod 25 , a supporting rod 26 and a spring 27 .

[0040] The rotating shaft 24 is coaxially connected to the lower surface of the rotating disk 22. The outer periphery of the rotating shaft 24 is provided with a slide groove 241. The slide groove 241 is spiral. The rotating shaft 24 is vertically slidably connected to the bracket 21. The latch is fixedly connected to the bracket 21 and is embedded in the slide groove 241.

[0041] The driving rod 25 is vertically slidably connected to the bracket 21 . The driving rod 25 is located at one side of the rotating shaft 24 . The upper end of the driving rod 25 is used for the front manipulator 1 to abut against.

[0042] The support rod 26 is connected to the lower end of the driving rod 25, and the rotating shaft 24 is rotatably connected to the support rod 26. The spring 27 is connected between the support rod 26 and the bracket 21, and the spring 27 makes the rotating shaft 24 have a tendency to move upward.

[0043] In the process of the front manipulator 1 moving downward to make the A surface of the pressed green body in close contact with the deburring device 2: the A surface of the pressed green body first contacts the bristles 23; the front manipulator 1 continues to move downward, the upper ends of the bristles 23 bend, and the front manipulator 1 contacts the upper end of the driving rod 25; the front manipulator 1 continues to move downward, the driving rod 25 and the supporting rod 26 move downward, gravity causes the rotating shaft 24 and the turntable 22 to move downward, the cooperation of the latch and the slide slot 241 causes the rotating shaft 24 and the turntable 22 to rotate, and the bristles 23 move relative to the pressed green body to remove burrs.

[0044] In actual production: based on the model of the pressed blank, the downward movement of the front robot 1 is digitally controlled to control the processing time of the bristles 23 on the pressed blank to complete the deburring; for example, when there are many burrs, the downward movement of the front robot 1 is increased.

[0045] After deburring is completed, the front robot 1 is also used to move backward to hand over the compact to the rear robot 3.

[0046] The rear manipulator 3 is used to receive the compact gripped by the front manipulator 1 and to flip the compact so that the B side of the compact faces the powder blowing and polishing device 4 .

[0047] Specifically: the rear manipulator 3 takes the compact from below the compact, and then the rear manipulator 3 turns over to complete the turning over of the compact.

[0048] Reference Figure 1 and Figure 3 The rear robot 3 is also used to move the compact downward to the powder blowing and grinding device 4.

[0049] The powder blowing and grinding device 4 is used for grinding the compact and blowing away the grinding debris. The powder blowing and grinding device 4 comprises a cylinder 41 , a grinding wheel 42 , a pneumatic rotary driver and an air pipe 43 .

[0050] The grinding wheel 42 is located in the cylinder 41, and the axis of the grinding wheel 42 is horizontal. The grinding wheel 42 can be a felt wheel, a grinding wheel, etc. For example, when the B surface of the pressed green body is a curved surface, a felt wheel is preferred.

[0051] A plurality of air pipes 43 are provided at intervals along the circumference of the cylinder 41. One end of the air pipe 43 extends into the cylinder 41, and the air outlet of the air pipe 43 is higher than the grinding wheel 42. The other end of the air pipe 43 is used to connect to the exhaust port of the pneumatic rotary driver, and the air inlet of the pneumatic rotary driver is used to connect to the air source, and the pneumatic rotary driver is used to drive the grinding wheel 42 to rotate.

[0052] In the drawings of this embodiment, the grinding wheel 42 is made of felt, the axis of the grinding wheel 42 is vertical, and the pneumatic rotary driver is located in the cylinder 41.

[0053] The powder blowing and polishing device 4 also includes a solenoid valve and a controller. The solenoid valve is connected between the air source and the pneumatic rotary driver. The controller is used to control the solenoid valve.

[0054] Specifically: when the green compact enters the cylinder 41 and the sensor or other equipment detects that the green compact is lower than the air outlet of the air pipe 43, the controller controls the solenoid valve to open, the pneumatic rotary driver to work, and the air outlet of the air pipe 43 to spray air, and the rear manipulator 3 moves to grind the B surface of the green compact with the grinding wheel 42, and blow away the dust on the A and B surfaces of the green compact at the same time; After the grinding is completed, the controller controls the electromagnetic valve to close, the pneumatic rotary driver stops working, and the air outlet of the air pipe 43 stops jetting.

[0055] After the grinding is completed, the rear manipulator 3 moves upward to separate from the cylinder 41; the rear manipulator 3 is also used to drive the pressed green body to move in the YZ plane to place the pressed green body on the receiving tray 5; wherein the YZ plane is vertical.

[0056] The fully automatic arrangement machine of this embodiment further comprises a conveyor belt 6, on which the receiving tray 5 is placed. The conveyor belt 6 is used to drive the receiving tray 5 to move along the X direction, which is perpendicular to the YZ plane.

[0057] The grinding chips and dust generated by the deburring device 2 and the powder blowing and grinding device 4 can be recycled. The fully automatic arrangement machine of this embodiment further includes a collector 7 to collect the grinding chips and dust generated by the deburring device 2 and the powder blowing and grinding device 4.

[0058] The implementation principle of a fully automatic arrangement machine for powder metallurgy parts processing in the embodiment of the present application is as follows: a metallurgical powder pressing device presses metallurgical powder into a compact of a predetermined shape; The front manipulator 1 moves precisely toward the metallurgical powder pressing device and grabs the pressed green sheet. The front manipulator 1 retreats and performs a downward movement operation during the retreat process, so that the A surface of the pressed green sheet is in close contact with the deburring device 2, thereby completing the preliminary grinding of the pressed green sheet. The front robot 1 continues to move backward until it reaches the junction with the rear robot 3, and smoothly transfers the compact to the rear robot 3; After receiving the green compact, the rear manipulator 3 performs a flipping action, so that the powder blowing and grinding device 4 arranged below it can perform secondary grinding on the B surface of the green compact and blow away the dust generated during the grinding process at the same time; The compacts that have undergone secondary processing are accurately placed in the receiving tray 5 by the rear robot 3 according to a preset arrangement sequence, thereby completing the entire fully automatic arrangement process.

[0059] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A fully automatic arranging machine for powder metallurgy parts processing, characterized in that: It comprises a front manipulator (1), a deburring device (2), a rear manipulator (3), a powder blowing and grinding device (4) and a receiving tray (5). The front manipulator (1) is used to grab the pressed green sheet, move the green sheet to the deburring device (2), and orient the A surface of the green sheet toward the deburring device (2). The deburring device (2) is used to remove burrs from the compact. The rear manipulator (3) is used to receive the compact grasped by the front manipulator (1), flip the compact, move the compact to the powder blowing and polishing device (4), orient the B side of the compact toward the powder blowing and polishing device (4), and place the compact on a receiving tray (5). The powder blowing and grinding device (4) is used for grinding the compact and blowing away grinding debris; The deburring device (2) comprises a bracket (21), a rotating disk (22) and bristles (23). The rotating disk (22) is rotatably connected to the bracket (21), and the rotating axis is vertical. The bristles (23) are connected to the upper surface of the rotating disk (22); The deburring device (2) further comprises a rotating shaft (24), a latch and a spring (27). The rotating shaft (24) is coaxially connected to the lower surface of the rotating disk (22); a sliding groove (241) is provided on the outer periphery of the rotating shaft (24); the sliding groove (241) is spiral-shaped; the rotating shaft (24) is vertically slidably connected to the bracket (21); The latch is connected to the bracket (21), and the latch is embedded in the slide groove (241); The deburring device (2) further comprises a driving rod (25) and a supporting rod (26). The driving rod (25) is vertically slidably connected to the bracket (21), and the upper end of the driving rod (25) is used for the front manipulator (1) to abut against. When the front robot (1) contacts the upper end of the driving rod (25), the upper end of the bristle (23) contacts the compact and bends. The support rod (26) is connected to the lower end of the driving rod (25), and the rotating shaft (24) is rotatably connected to the support rod (26). The spring (27) is connected between the support rod (26) and the bracket (21), and the spring (27) causes the rotating shaft (24) to have a tendency to move upward.

2. The fully automatic arrangement machine for powder metallurgy parts processing according to claim 1, characterized in that: The powder blowing and grinding device (4) comprises a cylinder (41), a grinding wheel (42), and an air pipe (43). The grinding wheel (42) is located inside the cylinder (41). One end of the air pipe (43) extends into the cylinder (41), an air outlet of the air pipe (43) is higher than the grinding wheel (42), and the other end of the air pipe (43) is used to connect to an air source.

3. The fully automatic arrangement machine for powder metallurgy parts processing according to claim 2, characterized in that: The powder blowing and polishing device (4) further comprises a pneumatic rotary drive, The other end of the air pipe (43) is used to be connected to the exhaust port of the pneumatic rotary drive, and the air inlet of the pneumatic rotary drive is used to be connected to the air source. The pneumatic rotary drive is used to drive the grinding wheel (42) to rotate.

4. The fully automatic arrangement machine for powder metallurgy parts processing according to claim 3, characterized in that: The powder blowing and polishing device (4) further comprises a solenoid valve and a controller. The solenoid valve is connected between the air source and the pneumatic rotary driver. The controller is used for controlling the solenoid valve.

5. The fully automatic arrangement machine for powder metallurgy parts processing according to claim 2, characterized in that: A plurality of air pipes (43) are arranged at intervals along the circumference of the cylinder (41).

6. The fully automatic arranging machine for powder metallurgy parts processing according to claim 1, characterized in that: It also includes a collector (7), The collector (7) is used to collect powder from the deburring device (2) and the powder blowing and grinding device (4).

7. The fully automatic arrangement machine for powder metallurgy parts processing according to claim 1, characterized in that: It also includes a conveyor belt (6), The conveyor belt (6) is used to drive the receiving tray (5) to move along the X direction. The rear manipulator (3) is used to drive the pressed blank to move on the YZ plane, where the YZ plane is perpendicular to the X direction.

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