Equipment for automatic precision shaping of powder metallurgy gear

Abstract

The utility model discloses a powder metallurgy gear automatic precision shaping device which comprises a bottom plate, a shaping die is embedded in the bottom plate, a feeding die is slidably connected to the top of the bottom plate and located on one side of the shaping die, an electric push rod is fixedly connected to the top of the bottom plate, and the feeding die is fixedly connected with a piston rod of the electric push rod. A placing groove is formed in the feeding die, a feeding cylinder is fixedly connected to the top of the feeding die and located above the placing groove through a third mounting frame, a notch is formed in the middle of the feeding cylinder, a plurality of positioning teeth are fixedly connected to the inner surfaces of the feeding cylinder and the placing groove, and a downward pressing assembly is arranged at the top of the bottom plate and located on one side of the shaping die. A pressing plate is slidably connected into the feeding cylinder notch, and a control assembly used for driving the pressing plate to move is arranged at the top of the bottom plate. Through the structure, the functions of automatic feeding, precise shaping and automatic receiving of the powder metallurgy gear are achieved, the shaping efficiency and precision are improved, the labor cost and the labor intensity are reduced, and practicability is high.

Description

Technical Field

[0001] This utility model relates to the field of powder metallurgy gear processing technology, and in particular to a device for automatic precision shaping of powder metallurgy gears. Background Art

[0002] Powder metallurgy gears are widely used in motorcycles, power tools, and automotive parts. However, due to the characteristics of powder metallurgy gear production, the gear teeth will undergo slight deformation after sintering. Therefore, the sintered powder metallurgy gears need to be precisely shaped to ensure that the powder metallurgy gears meet the requirements for use.

[0003] In the prior art, a search revealed a Chinese patent disclosing "A Powder Metallurgy Gear Shaping Device," application number "202121395827.9." This patent mainly includes a base plate and a support. A shaping mold is mounted on the upper surface of the base plate, and an ejector cylinder is located at the lower end of the base plate. An ejector shaft is mounted at the output end of the ejector cylinder. The other end of the ejector shaft passes through the base plate and the shaping mold, extending into the interior of the shaping mold. A T-shaped ejector plate matching the shaping mold is fixedly connected to the other end of the ejector shaft. A sponge pad matching the shaping mold is mounted on the outer wall of the T-shaped ejector plate. Four evenly distributed support rods are fixedly connected to the upper surface of the base plate, and a top plate is fixedly connected to the upper surface of the four support rods. A stamping cylinder is mounted on the upper surface of the top plate, and a stamping shaft is mounted at the output end of the stamping cylinder. The lower end of the stamping shaft passes through the top plate and is fixedly connected to a stamping plate. While this patent features convenient automatic lubricant application... However, when performing precision gear shaping, operators need to place the gear into the shaping mold, and after the shaping is completed, it needs to be removed from the mold for unloading. This manual operation is labor-intensive and inefficient, which is not conducive to achieving the high-efficiency production needs of enterprises. Therefore, this utility model provides a device for automatic precision shaping of powder metallurgy gears to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic precision shaping device for powder metallurgy gears, which realizes the functions of automatic feeding, precision shaping and automatic material collection of powder metallurgy gears, improves shaping efficiency and accuracy, reduces labor costs and labor intensity, and is highly practical.

[0005] To achieve the above objectives, an automatic precision forming device for powder metallurgy gears is provided, comprising a base plate, a forming mold embedded inside the base plate, a feeding mold slidably connected to the top of the base plate and one side of the forming mold, an electric push rod fixedly connected to the top of the base plate, the feeding mold being fixedly connected to the piston rod of the electric push rod, a placement groove being formed inside the feeding mold, a feeding cylinder being fixedly connected to the top of the feeding mold and above the placement groove via a third mounting bracket, a slot being formed in the middle of the feeding cylinder, multiple positioning teeth being fixedly connected to the inner surfaces of both the feeding cylinder and the placement groove, a pressing component being provided on the top of the base plate and one side of the forming mold, a pressure plate being slidably connected inside the slot of the feeding cylinder, and a control component for moving the pressure plate being provided on the top of the base plate.

[0006] According to the aforementioned equipment for automatic precision shaping of powder metallurgy gears, the control component includes two second mounting brackets fixedly connected to the top of the base plate and located on both sides of the feeding cylinder, a guide rod fixedly connected to the top of one of the second mounting brackets, a lead screw rotatably connected to the top of the other second mounting bracket, and a motor fixedly connected to the top of the base plate and located at the bottom end of the lead screw. The bottom end of the lead screw is fixedly connected to the output shaft of the motor, the bottom end of the guide rod is fixedly connected to the base plate, the end of the pressure plate near the lead screw is threadedly connected to the lead screw, and the end of the pressure plate near the guide rod is slidably connected to the guide rod.

[0007] According to the aforementioned equipment for automatic precision shaping of powder metallurgy gears, the pressing assembly includes a first mounting bracket fixedly connected to the top of the base plate and having an L-shaped structure, a cylinder fixedly connected to the top of the first mounting bracket, and a pressing block disposed above the shaping mold, wherein the pressing block is fixedly connected to the bottom end of the cylinder piston rod.

[0008] According to the aforementioned equipment for automatic precision shaping of powder metallurgy gears, a U-shaped guide plate is fixedly connected to the bottom of the base plate and below the shaping mold. A receiving box is provided on one side below the guide plate, and the bottom of the guide plate is provided with an inclined surface structure that slopes towards the receiving box.

[0009] According to the aforementioned equipment for automatic precision shaping of powder metallurgy gears, a limiting block is fixedly connected to the top of the base plate on the side of the shaping mold away from the feeding mold, and a limiting block is also fixedly connected to the top of the base plate on the side of the feeding mold near the electric push rod.

[0010] According to the aforementioned equipment for automatic precision shaping of powder metallurgy gears, a movable plate is slidably connected inside the receiving box, and two springs are symmetrically fixed between the bottom of the movable plate and the bottom of the inner surface of the receiving box, and a rubber pad is provided on the top of the movable plate.

[0011] This utility model has the following beneficial effects:

[0012] Compared with existing technologies, this automatic precision shaping equipment for powder metallurgy gears, through its structure including a feeding mold, feeding cylinder, shaping mold, pressure plate, control components, pressing components, and receiving box, realizes the functions of automatic feeding, precision shaping, and automatic receiving of powder metallurgy gears, improving shaping efficiency and accuracy, reducing labor costs and labor intensity, and is highly practical.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0015] Figure 1 This is a schematic diagram of the first overall structure of a device for automatic precision shaping of powder metallurgy gears according to the present invention;

[0016] Figure 2 This is a schematic diagram of the second overall structure of an automatic precision shaping device for powder metallurgy gears according to the present invention;

[0017] Figure 3 This is a schematic diagram of the third overall structure of an automatic precision shaping device for powder metallurgy gears according to the present invention;

[0018] Figure 4 This is a structural schematic diagram of the internal cross-section of a guide plate and receiving box for automatic precision shaping of powder metallurgy gears according to this utility model.

[0019] Figure 5 This is a schematic diagram of the feeding cylinder, feeding mold, placement groove, and positioning gear structure of an automatic precision shaping device for powder metallurgy gears according to this utility model.

[0020] Legend:

[0021] 1. Base plate; 2. Shaping mold; 3. Feeding mold; 4. Feeding cylinder; 5. Positioning teeth; 6. Placement groove; 7. Electric push rod; 8. First mounting bracket; 9. Cylinder; 10. Pressure block; 11. Second mounting bracket; 12. Guide rod; 13. Lead screw; 14. Pressure plate; 15. Motor; 16. Limit block; 17. Receiving box; 18. Third mounting bracket; 19. Guide plate; 20. Rubber pad; 21. Movable plate; 22. Spring. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0023] Reference Figure 1-5 This utility model discloses an automatic precision shaping device for powder metallurgy gears, comprising a base plate 1, with a shaping mold 2 embedded inside the base plate 1 for precision shaping of the powder metallurgy gears. A feeding mold 3 is slidably connected to the top of the base plate 1 and to one side of the shaping mold 2, the feeding mold 3 for supporting and positioning the powder metallurgy gears to be shaped. An electric push rod 7 is fixedly connected to the top of the base plate 1; the extension and retraction of the electric push rod 7 drives the feeding mold 3 to slide on the base plate 1, achieving the feeding function. The feeding mold 3 is fixedly connected to the piston rod of the electric push rod 7, and a placement groove 6 is provided inside the feeding mold 3 for placing the powder metallurgy gears to be shaped. The top of the feeding mold 3 and above the placement groove 6 is fixedly connected to the feeding cylinder 4 via the third mounting bracket 18. The feeding cylinder 4 has a slot in the middle. Multiple positioning teeth 5 are fixedly connected to the inner surfaces of the feeding cylinder 4 and the placement groove 6. These positioning teeth 5 can accurately position the gears stored inside the feeding cylinder 4, ensuring the stability and accuracy of the feeding process.

[0024] When the gear to be shaped is stored inside the feeding cylinder 4, the positioning teeth 5 play a positioning role to ensure the accuracy of subsequent gear feeding. During feeding, the gear falls into the placement groove 6 and the positioning teeth 5 ensure the accuracy of positioning. The electric push rod 7 pushes the feeding mold 3 and the gear inside it to the shaping mold 2. The pressure block 10 moves downward so that the gear passes through the mold cavity of the shaping mold 2 to shape the powder metallurgy gear. This realizes automatic feeding and precision shaping of powder metallurgy gears, improves shaping efficiency and accuracy, reduces labor costs and labor intensity, and has strong practicality.

[0025] A pressure plate 14 is slidably connected inside the groove of the feeding cylinder 4. The pressure plate 14 is used to press the powder metallurgy gear into the placement groove 6 during the feeding process. The top of the base plate 1 is provided with a control component for moving the pressure plate 14. The control component includes two second mounting brackets 11 fixedly connected to the top of the base plate 1 and located on both sides of the feeding cylinder 4, a guide rod 12 fixedly connected to the top of one of the second mounting brackets 11, a lead screw 13 rotatably connected to the top of the other second mounting bracket 11, and a motor 15 fixedly connected to the top of the base plate 1 and located at the bottom end of the lead screw 13. The bottom end of the lead screw 13 is fixedly connected to the output shaft of the motor 15, and the bottom end of the guide rod 12 is fixedly connected to the base plate 1. The end of the pressure plate 14 near the lead screw 13 is threadedly connected to the lead screw 13, and the end of the pressure plate 14 near the guide rod 12 is slidably connected to the guide rod 12, providing a stable sliding track for the pressure plate 14.

[0026] The rotation of motor 15 drives lead screw 13 to rotate, thereby causing pressure plate 14 to slide on guide rod 12. Pressure plate 14 moves downward to control the downward movement of gear inside feeding cylinder 4, which can realize the pressing function during feeding process, so that the gear to be shaped can be smoothly fed into the placement groove 6.

[0027] A pressing assembly is provided on the top of the base plate 1 and on one side of the forming mold 2. The pressing assembly includes a first mounting bracket 8 with an L-shaped structure fixedly connected to the top of the base plate 1, a cylinder 9 fixedly connected to the top of the first mounting bracket 8, and a pressing block 10 located above the forming mold 2. The pressing block 10 is fixedly connected to the bottom end of the piston rod of the cylinder 9.

[0028] After the gear is fed to the top of the forming mold 2 by the moving feeding mold 3, the pressing block 10 can be driven to press down by the extension and retraction of the cylinder 9, compressing the gear into the mold cavity inside the forming mold 2, and performing precision forming of the powder metallurgy gear.

[0029] A U-shaped guide plate 19 is fixedly connected to the bottom of the base plate 1 and below the forming mold 2. A receiving box 17 is provided on one side below the guide plate 19 to collect the shaped powder metallurgy gears. The bottom of the guide plate 19 is designed with an inclined surface structure that slopes towards the receiving box 17, facilitating the smooth sliding of the shaped gears into the receiving box 17. A movable plate 21 is slidably connected inside the receiving box 17. Two springs 22 are symmetrically fixed between the bottom of the movable plate 21 and the bottom of the inner surface of the receiving box 17. A rubber pad 20 is provided on the top of the movable plate 21 to buffer the impact force when the gear falls, protecting the gear from damage. When the gear falls into the receiving box 17, it will land on the movable plate 21 and move downwards through the elastic action of the springs 22, reducing collisions and damage between gears.

[0030] A limiting block 16 is fixedly connected to the top of the base plate 1 on the side of the forming mold 2 away from the feeding mold 3. A limiting block 16 is also fixedly connected to the top of the base plate 1 on the side of the feeding mold 3 near the electric push rod 7. The limiting block 16 is used to limit the sliding range of the feeding mold 3 on the base plate 1 to ensure the stable operation of the equipment and the accuracy of the forming process.

[0031] Working principle: When the pressure plate 14 moves to the top and stores the gear to be shaped inside the feeding cylinder 4, the positioning teeth 5 play a positioning role to ensure the accuracy of subsequent gear feeding. The rotation of the motor 15 can drive the lead screw 13 to rotate, thereby driving the pressure plate 14 to slide on the guide rod 12. The downward movement of the pressure plate 14 controls the downward movement of the gear inside the feeding cylinder 4, which can realize the pressing function during the feeding process, so that the gear to be shaped can be smoothly fed into the placement groove 6.

[0032] The electric push rod 7 pushes the feeding mold 3 and its internal gears to the forming mold 2. Through the extension and retraction of the cylinder 9, the pressure block 10 can be driven to press down, compressing the gear into the mold cavity inside the forming mold 2, and performing precision forming of the powder metallurgy gear.

[0033] After the gear is shaped, it slides smoothly into the receiving box 17 through the guide plate 19. When the gear falls into the receiving box 17, it will fall on the movable plate 21. The collision and damage between the gears are reduced by the spring 22 and the rubber pad 20, and the receiving work can be completed.

[0034] Through the structure of feeding mold 3, feeding cylinder 4, forming mold 2, pressure plate 14, control components, pressing components and receiving box 17, the automatic feeding, precision forming and automatic receiving functions of powder metallurgy gears are realized, which improves forming efficiency and accuracy, reduces labor costs and labor intensity, and is highly practical.

[0035] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A device for automatic precision shaping of powder metallurgy gears, characterized in that, The system includes a base plate (1), a shaping mold (2) is embedded inside the base plate (1), a feeding mold (3) is slidably connected to the top of the base plate (1) and to one side of the shaping mold (2), an electric push rod (7) is fixedly connected to the top of the base plate (1), the feeding mold (3) is fixedly connected to the piston rod of the electric push rod (7), a placement groove (6) is opened inside the feeding mold (3), a feeding cylinder (4) is fixedly connected to the top of the feeding mold (3) and above the placement groove (6) via a third mounting bracket (18), a slot is opened in the middle of the feeding cylinder (4), and multiple positioning teeth (5) are fixedly connected to the inner surfaces of the feeding cylinder (4) and the placement groove (6), a pressing component is provided on the top of the base plate (1) and to one side of the shaping mold (2), a pressure plate (14) is slidably connected inside the slot of the feeding cylinder (4), and a control component for moving the pressure plate (14) is provided on the top of the base plate (1).

2. The equipment for automatic precision shaping of powder metallurgy gears according to claim 1, characterized in that, The control assembly includes two second mounting brackets (11) fixedly connected to the top of the base plate (1) and located on both sides of the feeding cylinder (4), a guide rod (12) fixedly connected to the top of one of the second mounting brackets (11), a lead screw (13) rotatably connected to the top of the other second mounting bracket (11), and a motor (15) fixedly connected to the top of the base plate (1) and located at the bottom end of the lead screw (13). The bottom end of the lead screw (13) is fixedly connected to the output shaft of the motor (15), the bottom end of the guide rod (12) is fixedly connected to the base plate (1), the end of the pressure plate (14) near the lead screw (13) is threadedly connected to the lead screw (13), and the end of the pressure plate (14) near the guide rod (12) is slidably connected to the guide rod (12).

3. The equipment for automatic precision shaping of powder metallurgy gears according to claim 1, characterized in that, The pressing assembly includes a first mounting bracket (8) fixedly connected to the top of the base plate (1) and having an L-shaped structure, a cylinder (9) fixedly connected to the top of the first mounting bracket (8), and a pressing block (10) located above the shaping mold (2). The pressing block (10) is fixedly connected to the bottom end of the piston rod of the cylinder (9).

4. The equipment for automatic precision shaping of powder metallurgy gears according to claim 3, characterized in that, The bottom of the base plate (1) and below the forming mold (2) is fixedly connected to a U-shaped guide plate (19). A receiving box (17) is provided on one side below the guide plate (19). The bottom of the guide plate (19) is a sloping structure that is inclined towards the receiving box (17).

5. The equipment for automatic precision shaping of powder metallurgy gears according to claim 4, characterized in that, A limiting block (16) is fixedly connected to the top of the base plate (1) and to the side of the shaping mold (2) away from the feeding mold (3). A limiting block (16) is also fixedly connected to the top of the base plate (1) and to the side of the feeding mold (3) near the electric push rod (7).

6. The equipment for automatic precision shaping of powder metallurgy gears according to claim 5, characterized in that, The receiving box (17) has a sliding connection to a movable plate (21). Two springs (22) are symmetrically fixed between the bottom of the movable plate (21) and the bottom of the inner surface of the receiving box (17). A rubber pad (20) is provided on the top of the movable plate (21).

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