An automatic feeding device for powder metallurgy automotive gears

Abstract

This invention discloses an automatic unloading device for powder metallurgy automotive gears, belonging to the field of automotive parts processing technology. It includes a molding press, with a support frame at the outlet end of the molding press. A stepped fixing frame is fixed to the side of the support frame near the outlet of the molding press. From high to low, the stepped fixing frame is equipped with a gear double-sided cleaning component and a defective product crushing component. A powder recovery component is installed on the side wall of the molding press. A gear clamping and placing component is installed on the top of the support frame, and a weighing and tilting component is installed on the gear clamping and placing component. This invention, through its compact structure with the integrated gear double-sided cleaning component, weighing and tilting component, gear clamping and placing component, powder recovery component, and defective product crushing component, integrates multiple functions such as cleaning, detection, sorting, crushing, and recovery at the outlet end of the molding press. The actions are smoothly connected, with a high degree of automation, and can seamlessly integrate with existing powder metallurgy production lines, significantly improving operational efficiency.

Description

Technical Field

[0001] This invention belongs to the field of automotive parts processing technology, specifically relating to an automatic unloading device for powder metallurgy automotive gears. Background Technology

[0002] Powder metallurgy is a technology that produces metal powders and manufactures them into products through processes such as forming and sintering. Due to its advantages such as high material utilization, low energy consumption, and short process, it is widely used in the mass production of precision parts such as automotive gears.

[0003] In the molding process of powder metallurgy automotive gears, after the press completes the pressing, a large amount of residual metal powder will adhere to the surface of the gear, which needs to be cleaned; at the same time, a certain proportion of defective products (such as missing corners, uneven density, etc.) will be generated during the production process, and these defective products need to be recycled.

[0004] Traditional material feeding methods usually rely on manual operation. Workers need to take the gears out of the mold press, manually brush off the surface powder, and then weigh the gears (the weight of powder metallurgy gears is a key indicator for judging their density and whether they are qualified). Finally, good products are placed on the tray and defective products are discarded. This process is not only labor-intensive and inefficient, but manual powder cleaning can also cause dust to fly, pollute the workshop environment and endanger the health of workers. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide an automatic feeding device for powder metallurgy automotive gears.

[0006] The technical solution adopted to solve the above technical problems is: an automatic feeding device for powder metallurgy automotive gears, including a molding press, a support frame is provided at the discharge end of the molding press, a stepped fixed frame is fixedly connected to the side of the support frame near the discharge of the molding press, a gear double-sided cleaning component and a defective product crushing component are installed sequentially from high to low on the stepped fixed frame, and a powder recovery component is installed on the side wall of the molding press.

[0007] The powder recovery component works in conjunction with the gear double-sided cleaning component and the defective product crushing component to recover the cleaned powder. A gear clamping and placing component is installed on the top of the support frame. The gear double-sided cleaning component works in conjunction with the gear clamping and placing component to clean both sides of the clamped gear. A weighing and flipping component for gear quality inspection is installed on the gear clamping and placing component. The weighing and flipping component enables the magnetic attraction of good gears and the discarding of defective gears. A conveyor line is provided below the gear clamping and placing component, and a tray is conveyed on the conveyor line.

[0008] Furthermore, the gear double-sided cleaning assembly includes symmetrically arranged vertically positioned limiting strip shells. The inner walls of the two limiting strip shells are slidably connected to symmetrically arranged movable plates. A connecting block is fixed to the opposite face of each of the two movable plates. A drive motor is fixed to the center of the side wall of one of the limiting strip shells. A rotating shaft is fixed to the output end of the drive motor. A connecting rod is fixed to the side wall of the rotating shaft through the limiting strip shell. Both ends of the connecting rod are rotatably connected to the connecting rods. The other end of each connecting rod is rotatably connected to the side wall of the adjacent connecting block. A gear cleaning mechanism is provided on the two movable plates.

[0009] Through the above technical solution, the drive motor drives the upper and lower movable plates to move synchronously in opposite directions or in opposite directions through the linkage mechanism, thereby precisely adjusting the distance between the two gear cleaning mechanisms to adapt to gears of different thicknesses, and making the cleaning surface close to the gear end face during cleaning.

[0010] Furthermore, the gear cleaning mechanism includes a fixed cylinder fixedly installed on the opposite sides of two movable plates, and a second drive motor symmetrically fixed on the opposite sides of the two movable plates. The inner sidewalls of the fixed cylinders are rotatably connected to rotating shells. The opposite sides of the two rotating shells are covered with bristles. The sidewalls of the rotating shells away from the adjacent movable plates are provided with air suction holes. The outer sidewalls of the rotating shells are fitted with driven gears. The output ends of the second drive motors are fixedly connected to master gears. The master gears mesh with the adjacent driven gears.

[0011] Through the above technical solution, the drive motor drives the rotating shell to rotate at high speed, which drives the bristles to rotate and clean the upper and lower surfaces of the gear. At the same time, the suction hole, in conjunction with the powder recovery component, actively sucks up the stripped powder while cleaning, preventing secondary pollution.

[0012] Furthermore, the defective product crushing assembly includes a crushing box with a feed inlet at the top. Two crushing rollers are rotatably connected to the inner walls of both sides of the crushing box. A crushing chamber is formed inside the crushing box, which contacts the rolling surfaces of the two crushing rollers. A discharge port is formed through the bottom of each crushing chamber. There are two discharge ports, each located directly below the two crushing rollers. An arc-shaped filter screen is fixedly installed on the inner wall of each discharge port. A gear is fixedly connected to one end of each crushing roller outside the crushing box, and the two gears mesh with each other. A connecting frame is fixedly connected to the side wall of the crushing box, and a reduction motor is installed on the connecting frame. The output end of the reduction motor is fixedly connected to one end of a single crushing roller. A collection hopper is fixedly connected to the bottom of the crushing box.

[0013] With the above technical solution, after the defective gears fall into the crushing box, they are crushed by two relatively rotating crushing rollers. The crushed powder falls into the collection hopper through the arc-shaped filter screen, which is convenient for subsequent recycling. The substandard particles continue to be repeatedly crushed in the crushing chamber until they pass through the filter screen, ensuring that the particle size of the recycled powder is uniform.

[0014] Furthermore, the powder recovery assembly includes a dust pump and a transition box fixed to the side wall of the molding machine. The air inlet of the dust pump is connected to a main dust suction hose, and the other end of the main dust suction hose is connected to a branch hose one and a branch hose two. The two air inlets of the branch hose one are respectively connected to two fixed cylinders. The air inlet of the branch hose two is connected to the bottom end of the collection hopper. A dust conveying hose is connected between the air outlet of the dust pump and the top of the transition box. A filter plate is installed obliquely on the inner side wall of the transition box. A recovery port is opened on the side wall of the transition box facing the molding machine. The recovery port is located above the filter plate and communicates with the feeding chamber of the molding machine. An exhaust hole is opened at the bottom end of the transition box.

[0015] Through the above technical solution, the dust pump simultaneously draws the powder generated by the gear cleaning component and the defective product crushing component into the transition box. After being separated by the filter plate, the powder is directly sent back to the feeding chamber of the molding press through the recycling port for reuse. The gas is discharged from the exhaust port, realizing the closed-loop recycling of powder, saving raw materials and being environmentally friendly.

[0016] Furthermore, the gear clamping and placement assembly includes an X-axis guide rail slide fixed to the top of the support frame. A Y-axis guide rail slide is fixedly connected to the lower surface of the slider of the X-axis guide rail slide. A lifting electric cylinder and a limiting strip shell are radially fixed to the lower surface of the slider of the Y-axis guide rail slide. A lifting plate is slidably connected to the inner side wall of the limiting strip shell. The movable end of the lifting electric cylinder is fixedly connected to the top of the lifting plate. A multi-stage pushing electric cylinder and an auxiliary telescopic rod are fixedly installed on the upper surface of the lifting plate. An electric gripper is fixedly installed on the movable end of the multi-stage pushing electric cylinder and the auxiliary telescopic rod. The multi-stage pushing electric cylinder pushes the electric gripper through the space between the two rotating shells to clamp the gear. When the multi-stage pushing electric cylinder is fully retracted, the electric gripper is located directly above the weighing and flipping assembly.

[0017] Through the above technical solution, when clamping and picking up gears, the X-axis guide rail slide, Y-axis guide rail slide and lifting electric cylinder realize the precise movement of electric grippers in three-dimensional space; the multi-stage electric cylinder can extend into the cleaning station to clamp the gears, and after retraction, the gears are placed on the weighing and flipping component, with smooth and efficient operation.

[0018] Furthermore, the weighing and tilting assembly includes a rotating bracket fixed to the lower side wall of the lifting plate. A rotating seat is rotatably connected to the inner side wall of the rotating bracket. A servo motor is fixedly connected to one outer side wall of the rotating bracket. The output end of the servo motor is fixedly connected to the side wall of the rotating seat. A movable groove is opened at the top of the rotating seat. A pressure sensor is installed at the bottom of the inner wall of the movable groove. A weighing platform is slidably connected in the movable groove. An electromagnet is embedded inside the weighing platform.

[0019] With the above technical solution, when the electric gripper places the gear on the weighing platform, the pressure sensor performs precise weighing. The sensor detects the weight of the gear in real time to determine whether it is a defective product, lacking material or too heavy. After the detection is completed, if it is a defective product, the servo motor drives the rotating seat to rotate 180° and pour the defective product into the crushing component for crushing and recycling. If it is a good product, the electromagnet is energized to magnetically attract the gear to prevent it from slipping. With the three-dimensional movement of the X-axis guide rail slide, Y-axis guide rail slide, and lifting electric cylinder, the good gear is precisely and orderly moved to the top of the display plate. After the electromagnet is de-energized, the gear is easily released and placed on the display plate, realizing automatic sorting.

[0020] Furthermore, a control terminal is installed on the side wall of the support frame. The control terminal is electrically connected to the conveyor line, drive motor one, drive motor two, reduction motor, dust pump, X-axis guide rail slide, Y-axis guide rail slide, lifting electric cylinder, propulsion multi-stage electric cylinder, electric gripper, servo motor, pressure sensor, and electromagnet.

[0021] Through the above technical solution, the control terminal receives signals from various sensors and coordinates the control of all actuators to achieve a fully automated process from material picking, cleaning, detection, sorting to crushing and recycling, without the need for manual intervention.

[0022] The beneficial effects of this invention are as follows:

[0023] (1) By setting up a gear double-sided cleaning component and a weighing and flipping component, the automatic double-sided cleaning, weight detection and good and bad sorting of the molded automotive gears can be carried out at the same time. No manual operation is required, which greatly improves the material unloading and cleaning efficiency. At the same time, the detection and good and bad sorting of the gears can provide high-quality gear blanks for subsequent gear processing and improve the yield of finished gear products.

[0024] (2) By setting up gear clamping and placement components, weighing and flipping components, X-axis guide rail slide, Y-axis guide rail slide, and lifting electric cylinder drive, the weighing and flipping components can move precisely in three-dimensional space. With the cooperation of the conveyor line and the tray, good gears can be automatically and neatly placed into the tray, reducing labor intensity, with smooth action connection and high degree of automation, and can be seamlessly connected to the existing powder metallurgy production line.

[0025] (3) By setting up a defective product crushing component and a powder recovery component, the powder cleaned by the gear double-sided cleaning component and the powder crushed by the defective product crushing component are all recovered into the feeding chamber of the molding press through a dust pump and a transition box, realizing the closed-loop recycling of metal powder, which avoids dust pollution of the environment and saves production costs. Attached Figure Description

[0026] Figure 1 This is a perspective view of an automatic feeding device for powder metallurgy automotive gears according to the present invention;

[0027] Figure 2 This is a partial perspective view of an automatic feeding device for powder metallurgy automotive gears according to the present invention;

[0028] Figure 3 This is a perspective view of the gear double-sided cleaning component of an automatic unloading device for powder metallurgy automotive gears according to the present invention;

[0029] Figure 4 This is a structural diagram of the gear cleaning mechanism of an automatic feeding device for powder metallurgy automotive gears according to the present invention;

[0030] Figure 5 This is a perspective view of the defective crushing component of an automatic feeding device for powder metallurgy automotive gears according to the present invention.

[0031] Figure 6 This is a cross-sectional view of the defective crushing component of an automatic feeding device for powder metallurgy automotive gears according to the present invention.

[0032] Figure 7 This is a structural diagram of the powder recovery component of an automatic feeding device for powder metallurgy automotive gears according to the present invention.

[0033] Figure 8 This is a perspective view of the gear clamping and placement assembly of an automatic powder metallurgy automotive gear unloading device according to the present invention.

[0034] Figure 9 This is a structural diagram of the weighing and turning component of an automatic feeding device for powder metallurgy automotive gears according to the present invention.

[0035] Reference numerals: 1. Molding machine; 2. Support frame; 3. Stepped fixing frame; 4. Gear double-sided cleaning assembly; 5. Defective product crushing assembly; 6. Powder recovery assembly; 7. Gear clamping and placing assembly; 8. Weighing and flipping assembly; 9. Conveying line; 10. Placing tray; 11. Control terminal; 401. Limiting strip shell one; 402. Movable plate; 403. Connecting block; 404. Drive motor one; 405. Rotating shaft; 406. Connecting rod one; 407. Connecting rod two; 408. Gear cleaning mechanism; 4081. Fixed cylinder; 4082. Rotating shell; 4083. Brush bristles; 4084. Suction hole; 4085. Driven gear; 4086. Drive motor two; 4087. Main gear; 501. Crushing box; 5011. Feed inlet; 5012. Crushing chamber; 5013. Discharge port; 5 02. Crushing roller; 503. Gear; 504. Connecting frame; 505. Gear motor; 506. Collection hopper; 507. Arc-shaped filter screen; 601. Dust pump; 602. Main dust suction hose; 603. Branch hose one; 604. Branch hose two; 605. Dust conveying hose; 606. Transition box; 6061. Recovery port; 6062. Exhaust port; 607. Filter plate; 701. X-axis guide rail slide; 702. Y-axis guide rail slide; 703. Lifting electric cylinder; 704. Limiting strip shell two; 705. Lifting plate; 706. Multi-stage propulsion electric cylinder; 707. Auxiliary telescopic rod; 708. Electric gripper; 801. Rotating bracket; 802. Rotary seat; 803. Servo motor; 804. Movable groove; 805. Pressure sensor; 806. Weighing platform; 807. Electromagnet. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0037] like Figures 1-9 As shown, an automatic feeding device for powder metallurgy automotive gears in this embodiment includes a molding press 1. The discharge end of the molding press 1 is provided with a support frame 2. A stepped fixing frame 3 is fixedly connected to the side of the support frame 2 near the discharge end of the molding press 1. A gear double-sided cleaning component 4 and a defective product crushing component 5 are installed sequentially from high to low on the stepped fixing frame 3. A powder recovery component 6 is installed on the side wall of the molding press 1.

[0038] The powder recycling component 6 works in conjunction with the gear double-sided cleaning component 4 and the defective product crushing component 5 to recycle the cleaned powder. The top of the support frame 2 is equipped with a gear clamping and placing component 7. The gear double-sided cleaning component 4 works in conjunction with the gear clamping and placing component 7 to clean both sides of the clamped gear. The gear clamping and placing component 7 is equipped with a weighing and flipping component 8 for gear quality inspection. The weighing and flipping component 8 enables the magnetic attraction of good gears and the discarding of defective gears. Below the gear clamping and placing component 7 is a conveyor line 9, on which a tray 10 is conveyed.

[0039] The system integrates molding, cleaning, inspection, sorting, recycling, and conveying into one unit, enabling fully automated feeding of automotive gears, reducing manual intervention, and improving production efficiency. The powder recycling component 6 works in conjunction with the gear double-sided cleaning component 4 and the defective product crushing component 5 to achieve closed-loop recycling of waste materials, saving energy and protecting the environment. The weighing and flipping component 8 distinguishes between good and defective gears. Good gears are magnetically placed, while defective gears are discarded to the defective product crushing component 5 for crushing and recycling, ensuring that only qualified products enter the tray and improving the consistency of the quality of the finished products.

[0040] like Figure 3 As shown, the gear double-sided cleaning assembly 4 includes symmetrically arranged vertically arranged limiting strip shells 401. The inner walls of the two limiting strip shells 401 are slidably connected to symmetrically arranged movable plates 402. The opposite surfaces of the two movable plates 402 are fixedly connected to connecting blocks 403. The center of the side wall of one limiting strip shell 401 is fixedly connected to a drive motor 404. The output end of the drive motor 404 is fixedly connected to a rotating shaft 405. The side wall of the rotating shaft 405 passes through the limiting strip shell 401 and is fixedly connected to a connecting rod 406. Both ends of the connecting rod 406 are rotatably connected to a connecting rod 407. The other end of the connecting rod 407 is rotatably connected to the side wall of the adjacent connecting block 403. The two movable plates 402 are provided with a gear cleaning mechanism 408.

[0041] The drive motor 404 drives the connecting rod 406 to rotate, which in turn drives the two upper and lower connecting rods 407 to move synchronously, so that the two movable plates 402 move towards each other or away from each other. This allows for precise adjustment of the distance between the two gear cleaning mechanisms 408 to accommodate gears of different thicknesses, ensuring that the two cleaning surfaces of the gear cleaning mechanism 408 are at the same distance from the gear end face. This design is highly versatile and does not require frequent fixture replacements. At the same time, the limiting strip shell 401 provides a sliding guide to ensure that the movable plate 402 moves straight and without wobbling.

[0042] like Figure 4As shown, the gear cleaning mechanism 408 includes a fixed cylinder 4081 fixedly installed on the opposite sides of two movable plates 402, and a second drive motor 4086 symmetrically fixed on the opposite sides of the two movable plates 402. The inner sidewalls of the fixed cylinder 4081 are rotatably connected to rotating shells 4082. The opposite sides of the two rotating shells 4082 are covered with bristles 4083. The sidewalls of the rotating shells 4082 away from the adjacent movable plates 402 are provided with air suction holes 4084. The outer sidewalls of the rotating shells 4082 are fitted with driven gears 4085. The output end of the second drive motor 4086 is fixedly connected to a main gear 4087. The main gears 4087 mesh with the adjacent driven gears 4085.

[0043] When cleaning the gears, the two drive motors 4086 simultaneously drive the main gear 4087 to rotate. Through the meshing transmission of the slave gear 4085, the upper and lower rotating shells 4082 are driven to rotate synchronously. The rotating shells 4082 drive the brush bristles 4083 to rotate, performing high-speed bidirectional cleaning on the gear end face and tooth sides to remove residual powder. At the same time, the suction port 4084, in conjunction with the powder recovery component 6, actively sucks up the stripped powder during cleaning to prevent secondary pollution and directly recovers it into the material chamber of the molding press 1, achieving efficient cleaning and powder collection, ensuring the cleanliness of the gears, and improving the yield of gear sintering.

[0044] like Figure 5 , Figure 6 As shown, the defective product crushing assembly 5 includes a crushing box 501. The top of the crushing box 501 has a feed inlet 5011. Two crushing rollers 502 are rotatably connected to the inner walls of both sides of the crushing box 501. The crushing box 501 has a crushing chamber 5012 that contacts the rolling surface of the two crushing rollers 502. The bottom of each crushing chamber 5012 has a discharge port 5013. There are two discharge ports 5013, which are located directly below the two crushing rollers 502. The inner side wall of each discharge port 5013 is fixedly installed with an arc-shaped filter screen 507. One end of each crushing roller 502 located outside the crushing box 501 is fixedly connected with a gear 503. The two gears 503 mesh with each other. A connecting frame 504 is fixedly connected to the side wall of the crushing box 501. A reduction motor 505 is installed on the connecting frame 504. The output end of the reduction motor 505 is fixedly connected to one end of a single crushing roller 502. A collection hopper 506 is fixedly connected to the bottom of the crushing box 501.

[0045] After the defective gear falls into the crushing chamber 501 through the feed inlet 5011, the reduction motor 505 drives a single crushing roller 502 to rotate. Through the gear 503, the other crushing roller 502 rotates relative to it, so that the defective gear is crushed by the two relatively rotating crushing rollers 502. The crushed powder falls into the collection hopper 506 through the arc-shaped filter screen 507 for subsequent recycling. The substandard particles continue to be repeatedly crushed in the crushing chamber 5012 until they pass through the arc-shaped filter screen 507, ensuring that the particle size of the recycled powder is uniform and that it is easy for the molding press 1 to reuse.

[0046] like Figure 2 , Figure 7 As shown, the powder recovery assembly 6 includes a dust pump 601 and a transition box 606 fixed to the side wall of the molding machine 1. The air inlet of the dust pump 601 is connected to a main dust suction hose 602. The other end of the main dust suction hose 602 is connected to a branch hose 1 603 and a branch hose 2 604. The two air inlets of the branch hose 1 603 are respectively connected to two fixed cylinders 4081. The air inlet of the branch hose 2 604 is connected to the bottom of the collection hopper 506. A dust conveying hose 605 is connected through the air outlet of the dust pump 601 and the top of the transition box 606. A filter plate 607 is installed obliquely on the inner side wall of the transition box 606. A recovery port 6061 is opened on the side wall of the transition box 606 facing the molding machine 1. The recovery port 6061 is located above the filter plate 607 and is connected to the feed chamber of the molding machine 1. An exhaust hole 6062 is opened at the bottom of the transition box 606.

[0047] Branch hose 603 connects to the rotating shell 4082 of the gear double-sided cleaning assembly 4, and branch hose 604 connects to the collection hopper 506 of the defective product crushing assembly 5. The dust pump 601 simultaneously draws the powder generated by the two assemblies into the transition box 606 through the main dust suction hose 602 and the dust conveying hose 605. The inclined filter plate 607 separates the gas and powder. The powder is returned directly to the feeding chamber of the molding machine 1 through the recovery port 6061, and the gas is discharged from the exhaust port 6062, realizing closed-loop reuse and reducing raw material loss.

[0048] like Figure 8As shown, the gear clamping and placement assembly 7 includes an X-axis guide rail slide 701 fixed to the top of the support frame 2. A Y-axis guide rail slide 702 is fixedly connected to the lower surface of the slider of the X-axis guide rail slide 701. A lifting electric cylinder 703 and a limiting strip shell 704 are radially fixed to the lower surface of the slider of the Y-axis guide rail slide 702. A lifting plate 705 is slidably connected to the inner side wall of the limiting strip shell 704. The movable end of the lifting electric cylinder 703 is fixedly connected to the top of the lifting plate 705. A multi-stage pushing electric cylinder 706 and an auxiliary telescopic rod 707 are fixedly installed on the upper surface of the lifting plate 705. An electric gripper 708 is fixedly installed on the movable end of the multi-stage pushing electric cylinder 706 and the auxiliary telescopic rod 707. The multi-stage pushing electric cylinder 706 pushes the electric gripper 708 through the two rotating shells 4082 to clamp the gear. When the multi-stage pushing electric cylinder 706 is fully retracted, the electric gripper 708 is located directly above the weighing and flipping assembly 8.

[0049] When clamping and picking up the gear, the X-axis guide slide 701 and Y-axis guide slide 702 provide precise planar movement for picking up the material. The lifting electric cylinder 703 pushes the lifting plate 705 to move up and down along the limiting strip shell 704. The multi-stage electric cylinder 706, in conjunction with the auxiliary telescopic rod 707, pushes the electric gripper 708 horizontally through the gear double-sided cleaning assembly 4 and into the interior of the molding machine 1 to clamp the gear. After clamping the gear, it drives the gear to the gear double-sided cleaning assembly 4. While clamping the gear, the upper and lower end faces of the gear are cleaned. After cleaning, the multi-stage electric cylinder 706 continues to retract, driving the electric gripper 708 and the gear to move above the weighing and tilting assembly 8. The electric gripper 708 places the gear on the weighing and tilting assembly 8 for the next step of inspection. The operation is smooth and efficient.

[0050] like Figure 9 As shown, the weighing and tilting assembly 8 includes a rotating bracket 801 fixed to the lower side wall of the lifting plate 705. A rotating seat 802 is rotatably connected to the inner side wall of the rotating bracket 801. A servo motor 803 is fixedly connected to one side outer wall of the rotating bracket 801. The output end of the servo motor 803 is fixedly connected to the side wall of the rotating seat 802. A movable groove 804 is opened at the top of the rotating seat 802. A pressure sensor 805 is installed at the bottom of the inner wall of the movable groove 804. A weighing platform 806 is slidably connected in the movable groove 804. An electromagnet 807 is embedded inside the weighing platform 806.

[0051] When the electric gripper 708 places the gear on the weighing platform 806, the pressure sensor 805 performs precise weighing. The sensor detects the weight of the gear to determine whether it is a defective product, lacking material, or overweight. After detection, if it is a defective product, the servo motor 803 drives the rotating seat 802 to rotate 180°, tilting the defective product into the defective product crushing component 5 for crushing and recycling. If it is a good product, the electromagnet 807 is energized to magnetically attract the gear and prevent it from slipping. With the three-dimensional movement of the X-axis guide slide 701, Y-axis guide slide 702, and lifting cylinder 703, the good gear is precisely and orderly moved above the display tray 10. After the electromagnet 807 is de-energized, the gear is easily released and placed on the display tray 10, realizing automatic sorting. At the same time, there is a certain space between adjacent gears during placement to prevent adjacent gears from sintering together during subsequent gear sintering, which would cause the gear to be scrapped.

[0052] like Figure 1 As shown, a control terminal 11 is installed on the side wall of the support frame 2. The control terminal 11 is electrically connected to the conveyor line 9, drive motor 404, drive motor 4086, geared motor 505, dust pump 601, X-axis guide rail slide 701, Y-axis guide rail slide 702, lifting electric cylinder 703, multi-stage propulsion electric cylinder 706, electric gripper 708, servo motor 803, pressure sensor 805, and electromagnet 807. The control terminal 11 receives signals from each sensor and coordinates the control of all actuators to realize a fully automated process from material picking, cleaning, detection, sorting to crushing and recycling, without the need for manual intervention.

[0053] The working principle of this embodiment is as follows: When in use, after the system is started, the control terminal 11 coordinates all execution elements to run automatically according to the set program.

[0054] First, the conveyor line 9 transports the empty tray 10 to the designated waiting position. The X-axis guide slide 701 and the Y-axis guide slide 702 move to move the electric gripper 708 to above the discharge end of the molding machine 1. The lifting cylinder 703 pushes the lifting plate 705 down along the limiting strip shell 704, and the multi-stage cylinder 706 extends, so that the electric gripper 708 passes between the two rotating shells 4082 and enters the molding machine 1 to clamp the molded gear. After clamping, the multi-stage cylinder 706 retracts and removes the gear from the molding machine 1.

[0055] The gear is clamped between the two rotating shells 4082 of the gear double-sided cleaning assembly 4. At this time, the drive motor 1 404 drives the two upper and lower movable plates 402 to move towards each other through the connecting rod 1 406 and the connecting rod 2 407, so that the upper and lower bristles 4083 maintain a set distance from the two end faces of the gear. Then, the two drive motors 2 4086 start at the same time, and drive the two rotating shells 4082 to rotate at high speed through the main gear 4087 and the driven gear 4085. The bristles 4083 clean the upper and lower end faces and tooth sides of the gear in both directions. At the same time, the vacuum pump 601 works and sucks away the stripped powder through the branch hose 1 603, the main vacuum hose 602 and the suction hole 4084 on the rotating shell 4082.

[0056] After cleaning, the multi-stage electric cylinder 706 continues to retract, moving the gear onto the weighing platform 806 of the weighing and flipping assembly 8. The electric gripper 708 releases its grip, and the gear falls onto the weighing platform 806 under gravity. The pressure sensor 805 measures the actual weight of the gear and feeds it back to the control terminal 11. The control terminal 11 compares the measured weight with the preset standard range. If the weight is not up to standard (insufficient material or overweight), it is judged as a defective product. If the weight is up to standard, it is judged as a good product.

[0057] For good quality gears, the control terminal 11 commands the electromagnet 807 to be energized, which magnetically fixes the gear on the weighing platform 806. The servo motor 803 keeps the rotating seat 802 horizontal. The X-axis guide slide 701, the Y-axis guide slide 702 and the lifting cylinder 703 work together to accurately move the gear to the top of the swivel plate 10 on the conveyor line 9 and lower it to the set height. Then the electromagnet 807 is de-energized, and the gear is smoothly released into the corresponding position of the swivel plate 10, with a set distance between adjacent gears.

[0058] If the product is determined to be defective, the electromagnet 807 remains de-energized, the servo motor 803 drives the rotating seat 802 to rotate 180°, so that the weighing platform 806 faces downward. The defective gear falls into the feed inlet 5011 of the defective crushing component 5 below due to gravity. The reduction motor 505 drives two meshing gears 503 to drive two crushing rollers 502 to rotate relative to each other, crushing the defective gear. The crushed powder falls into the collection hopper 506 through the arc-shaped filter screen 507, and is then sucked in by the dust pump 601 through the branch hose 604.

[0059] The dust pump 601 sends the powder from the gear double-sided cleaning assembly 4 and the defective product crushing assembly 5 together into the transition box 606 through the dust conveying hose 605. The powder is blocked and settled by the inclined filter plate 607. Clean air is discharged from the exhaust port 6062. The collected powder is returned directly to the feeding chamber of the molding machine 1 through the recycling port 6061, realizing closed-loop reuse.

[0060] After a single gear completes material picking, cleaning, inspection, sorting, and waste recycling, the X / Y / Z axes are reset, and the conveyor line 9 advances one station. The system continues to perform the same process on the next gear until all trays 10 are full or the molding machine 1 finishes discharging. Throughout the process, the control terminal 11 monitors the signals of each sensor in real time and adjusts each actuator in a closed loop, realizing fully automatic and unmanned material feeding operations for automotive gears from molding to finished product tray placement.

[0061] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. An automatic feeding device for powder metallurgy automotive gears, comprising a molding press (1), characterized in that: The discharge end of the molding press (1) is provided with a support frame (2). A stepped fixed frame (3) is fixed to the side of the support frame (2) near the discharge of the molding press (1). A gear double-sided cleaning component (4) and a defective product crushing component (5) are installed in the stepped fixed frame (3) from high to low. A powder recovery component (6) is installed on the side wall of the molding press (1). The powder recycling component (6) works in conjunction with the gear double-sided cleaning component (4) and the defective product crushing component (5) to recycle the cleaned powder. A gear clamping and placing component (7) is installed on the top of the support frame (2). The gear double-sided cleaning component (4) works in conjunction with the gear clamping and placing component (7) to clean both sides of the clamped gear. A weighing and flipping component (8) for gear quality detection is installed on the gear clamping and placing component (7). The weighing and flipping component (8) enables the magnetic attraction of good gears and the discarding of defective gears. A conveying line (9) is provided below the gear clamping and placing component (7). A tray (10) is conveyed on the conveying line (9).

2. The automatic feeding device for powder metallurgy automotive gears according to claim 1, characterized in that, The gear double-sided cleaning assembly (4) includes a symmetrically arranged vertically arranged limiting strip shell (401). The inner walls of the two limiting strip shells (401) are slidably connected to symmetrically arranged movable plates (402). The opposite surfaces of the two movable plates (402) are fixedly connected to connecting blocks (403). A drive motor (404) is fixedly connected to the center of the side wall of one of the limiting strip shells (401). The output end of the drive motor (404) is fixedly connected to a rotating shaft (405). The side wall of the rotating shaft (405) passes through the limiting strip shell (401) and is fixedly connected to a connecting rod (406). Both ends of the connecting rod (406) are rotatably connected to a connecting rod (407). The other end of the connecting rod (407) is rotatably connected to the side wall of the adjacent connecting block (403). The two movable plates (402) are provided with a gear cleaning mechanism (408).

3. The automatic feeding device for powder metallurgy automotive gears according to claim 2, characterized in that, The gear cleaning mechanism (408) includes a fixed cylinder (4081) fixedly installed on the opposite sides of two movable plates (402), and a second drive motor (4086) symmetrically fixed on the opposite sides of the two movable plates (402). The inner sidewall of the fixed cylinder (4081) is rotatably connected to a rotating shell (4082). The opposite sides of the two rotating shells (4082) are covered with bristles (4083). The sidewall of the rotating shell (4082) away from the adjacent movable plate (402) is provided with an air intake hole (4084). The outer sidewall of the rotating shell (4082) is fitted with a driven gear (4085). The output end of the second drive motor (4086) is fixedly connected to a main gear (4087). The main gear (4087) meshes with the adjacent driven gear (4085).

4. The automatic feeding device for powder metallurgy automotive gears according to claim 1, characterized in that, The defective product crushing assembly (5) includes a crushing box (501), with a feed inlet (5011) at the top of the crushing box (501). Two crushing rollers (502) are rotatably connected to the inner walls of both sides of the crushing box (501). A crushing chamber (5012) is formed inside the crushing box (501) that contacts the rolling surfaces of the two crushing rollers (502). A discharge port (5013) is formed at the bottom of each crushing chamber (5012). There are two discharge ports (5013), each located directly below one of the two crushing rollers (502). Arc-shaped filter screens (507) are fixedly installed on the inner side wall of the discharge port (5013). Gears (503) are fixedly connected to one end of the crushing roller (502) located outside the crushing box (501). The two gears (503) mesh with each other. A connecting frame (504) is fixedly connected to the side wall of the crushing box (501). A geared motor (505) is installed on the connecting frame (504). The output end of the geared motor (505) is fixedly connected to one end of a single crushing roller (502). A collection hopper (506) is fixedly connected to the bottom end of the crushing box (501).

5. The automatic feeding device for powder metallurgy automotive gears according to claim 4, characterized in that, The powder recovery assembly (6) includes a dust pump (601) and a transition box (606) fixed to the side wall of the molding machine (1). The air inlet of the dust pump (601) is connected to a main dust suction hose (602). The other end of the main dust suction hose (602) is connected to a branch hose one (603) and a branch hose two (604). The two air inlets of the branch hose one (603) are respectively connected to two fixed cylinders (4081). The air inlet of the branch hose two (604) is connected to the bottom end of the collection hopper (506). A dust conveying hose (605) is connected between the air outlet of the dust pump (601) and the top of the transition box (606). A filter plate (607) is installed obliquely on the inner side wall of the transition box (606). A recovery port (6061) is opened on the side wall of the transition box (606) facing the molding machine (1). The recovery port (6061) is located above the filter plate (607). The recovery port (6061) is connected to the feed chamber of the molding machine (1). An exhaust hole (6062) is opened at the bottom of the transition box (606).

6. The automatic feeding device for powder metallurgy automotive gears according to claim 3, characterized in that, The gear clamping and placement assembly (7) includes an X-axis guide rail slide (701) fixed to the top of the support frame (2). A Y-axis guide rail slide (702) is fixedly connected to the lower surface of the slider of the X-axis guide rail slide (701). A lifting electric cylinder (703) and a limiting strip shell II (704) are radially fixed to the lower surface of the slider of the Y-axis guide rail slide (702). A lifting plate (705) is slidably connected to the inner wall of the limiting strip shell II (704). The movable end of the lifting electric cylinder (703) is connected to the top of the lifting plate (705). The upper surface of the lifting plate (705) is fixedly connected to a multi-stage electric cylinder (706) and an auxiliary telescopic rod (707). The movable ends of the multi-stage electric cylinder (706) and the auxiliary telescopic rod (707) are fixedly installed with electric grippers (708). The multi-stage electric cylinder (706) pushes the electric grippers (708) through the gear between the two rotating shells (4082). When the multi-stage electric cylinder (706) is fully retracted, the electric grippers (708) are located directly above the weighing and flipping assembly (8).

7. The automatic feeding device for powder metallurgy automotive gears according to claim 6, characterized in that, The weighing and flipping assembly (8) includes a rotating bracket (801) fixed to the lower side wall of the lifting plate (705). A rotating seat (802) is rotatably connected to the inner side wall of the rotating bracket (801). A servo motor (803) is fixed to one side outer wall of the rotating bracket (801). The output end of the servo motor (803) is fixedly connected to the side wall of the rotating seat (802). A movable groove (804) is opened at the top of the rotating seat (802). A pressure sensor (805) is installed at the bottom of the inner wall of the movable groove (804). A weighing platform (806) is slidably connected in the movable groove (804). An electromagnet (807) is embedded inside the weighing platform (806).

8. The automatic feeding device for powder metallurgy automotive gears according to claim 7, characterized in that: The support frame (2) is equipped with a control terminal (11) on its side wall. The control terminal (11) is electrically connected to the conveyor line (9), drive motor 1 (404), drive motor 2 (4086), geared motor (505), dust pump (601), X-axis guide rail slide (701), Y-axis guide rail slide (702), lifting electric cylinder (703), propulsion multi-stage electric cylinder (706), electric gripper (708), servo motor (803), pressure sensor (805), and electromagnet (807).

Images