Island type rotary casting production process and equipment for automobile parts

Abstract

The invention provides an island type rotary casting production process and equipment for automobile parts, and belongs to the field of casting production of the automobile parts. Rotary casting assemblies are arranged on the rear machine base in a left-right symmetry mode, and each rotary casting assembly internally comprises a rotary cylinder. Casting boxes are symmetrically arranged on the left side and the right side between the rear machine base and the front machine base correspondingly, and guide pipes are arranged between the casting boxes and the adjacent rotating cylinders; an automatic casting assembly is arranged between the inner walls of the left side and the right side of the front machine base. According to the automatic feeding device, the rotary casting assembly and the automatic casting assembly are matched with each other, feeding can be conducted on the multiple casting boxes in sequence in the rotary casting forming process, manual assistance is not needed for automatic feeding, more labor is saved, and due to the fact that the specifications of the casting boxes are consistent, the production efficiency is improved. The pouring flow can be kept consistent when the casting barrel moves by the length of the fixed distance, and therefore it is guaranteed that the forming quality of cast parts is good.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile parts casting production, in particular to an island-type rotary casting production process and equipment for automobile parts. Background Art

[0002] Island-type rotary casting is a casting method that uses centrifugal force to inject liquid metal into a rotating mold. It is primarily used to produce tubular, sleeve-shaped, and bimetallic composite castings (such as seamless steel pipes and bearing sleeves). Its function is to evenly distribute the molten metal through high-speed rotation and rapidly solidify it, forming a hollow structure without the need for a core. It also effectively removes gas and impurities, increasing the density of the casting. In the production of automotive parts, wheel hubs are often cast using this method.

[0003] During existing rotary casting, high-temperature molten metal needs to be slowly poured into the rotating cylinder. Usually, two people work together to use a metal rod to penetrate the casting cylinder, and work together to support and lift it, and tilt it so that the high-temperature molten metal inside enters the casting box first under the action of gravity, and then enters the rotating cylinder through the drainage pipe. Sometimes, for convenience, several rotating cylinders are usually arranged in a row, so that after filling one casting cylinder, the operator moves the casting cylinder to pour the next casting cylinder. This method has obvious disadvantages in actual production. First, it requires manual operation and is not automated enough. The operation process has high requirements on manpower. Second, when two or more casting cylinders need to be cast at the same time, it is impossible to accurately achieve the same amount of high-temperature molten metal poured into the casting cylinder in a single time, which makes it easy to make the thickness of the parts uneven during molding.

[0004] Therefore, we propose an island-type rotational casting production process and equipment for automobile parts to solve the above problems. Summary of the Invention

[0005] In view of the shortcomings of the prior art, the present invention provides an island-type rotary casting production process and equipment for automobile parts to solve the problems raised in the above background technology.

[0006] The purpose of the present invention can be achieved through the following technical solutions:

[0007] An island-type rotary casting production process for automobile parts includes the following steps: Step 1: connecting the casting equipment to a power source, starting the rotary casting assembly through a controller to rotate the inner rotating cylinder, pouring high-temperature molten metal into the casting cylinder to a certain height through an external device, and then starting the motor through a control device to start the casting operation;

[0008] Step 2: The motor drives the screw to rotate through the worm, and the threaded fit between the screw and the moving frame drives the moving frame to slowly move along the length direction of the shell. When the moving frame moves, the push frame on it pushes the rotating part to drive the support tube and the casting tube filled with high-temperature molten metal to move, so that the support tube and the casting tube slide along the outside of the central axis;

[0009] Step 3: At the same time, the rotating worm drives the rotating shaft to rotate by meshing with the worm wheel, and drives the connecting shaft and the threaded tube on it to rotate through the pulley and belt below. When the threaded tube rotates, it cooperates with the rod body through the thread between it and the rod body. At the same time, the rod body is restricted by the sleeve rod, so that the rod body drives the lifting rod to move up slowly through the sleeve rod. When the lifting rod moves up, it pushes the swing arm to drive the central shaft to rotate slowly, so that the central shaft further drives the casting tube to rotate, so that the high-temperature molten metal inside is poured into the adjacent casting box. After that, the high-temperature molten metal enters the rotating drum through the guide tube for centrifugal molding.

[0010] As a preferred embodiment of the present invention, a casting device for island-type rotary casting production of automotive parts comprises a rear base and a front base; a rotary casting assembly is symmetrically arranged on the rear base, and the rotary casting assembly includes a rotary cylinder; a casting box is symmetrically arranged on the rear base and the front base, a guide tube is provided between the casting box and the adjacent rotary cylinder, and an inclined guide plate is fixed between the two casting boxes;

[0011] An automatic casting assembly is provided between the left and right inner walls of the front machine base, and the automatic casting assembly includes a central axis rotatably connected to the upper rear side between the left and right inner walls of the front machine base, and a casting cylinder is provided outside the central axis. The automatic casting assembly also includes a moving assembly provided at the middle of the front side between the left and right inner walls of the front machine base, a moving frame is provided inside the moving assembly, a pushing frame is fixedly provided on the moving frame, a connecting rod is provided on the pushing frame, and rotating parts are respectively sleeved on the left and right sides of the connecting rod, a supporting cylinder is sleeved on the outer side of the casting cylinder, and the rotating part is connected to the supporting cylinder;

[0012] A control component is also provided on one side of the front base, and the control component is connected to the moving component, the front base and the central axis respectively.

[0013] As a preferred embodiment of the present invention, the control component includes a swing arm fixedly provided at one end of the central axis, a fixed frame is fixedly provided on the side of the front machine base close to the swing arm, a motor is fixedly provided on one side of the fixed frame, a worm is fixedly provided at the output end of the motor, one end of the worm is connected to the moving component, the bottom inner wall of the fixed frame is rotatably connected to the rotating shaft, a worm wheel is fixedly provided on the outside of the rotating shaft, the worm wheel is meshed with the worm, the bottom of the fixed frame and located behind the rotating shaft are also rotatably connected to the connecting shaft, the outer lower sides of the rotating shaft and the connecting shaft are fixedly provided with pulleys, a belt is tensioned between the two pulleys, the top of the connecting shaft is fixedly provided with a threaded tube, the inner thread of the threaded tube is connected to a rod body, the front side of the side of the front machine base close to the swing arm is slidably connected to a lifting rod in a vertical direction, and the front end of the lifting rod is fixed with a sleeve rod, and the sleeve rod is movably connected to the rod body.

[0014] As a preferred embodiment of the present invention, the moving assembly includes a shell fixedly connected to the front machine base, a screw is rotatably connected inside the shell, the moving frame is threadedly connected to the outside of the screw, the moving frame is slidably connected in the shell, and one end of the screw is fixedly connected to the adjacent end of the worm.

[0015] As a preferred embodiment of the present invention, connecting parts are fixedly provided on the left and right sides of the front side of the support tube and the middle of the front side of the casting tube, and grooves are respectively provided on the top of the left and right sides of the rear side of the support tube.

[0016] As a preferred embodiment of the present invention, a thickened portion is fixedly provided on the rear upper inner wall of the casting cylinder, and a guide groove is opened in the middle of the thickened portion.

[0017] As a preferred embodiment of the present invention, a plurality of positioning blocks are provided on the outer side of the central shaft, a fixing groove matching the outer contour of the central shaft is provided in the thickened portion, and the central shaft is slidably connected in the fixing groove.

[0018] As a preferred embodiment of the present invention, positioning rods are fixedly provided on the upper and lower sides of the front base close to the swing arm.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. Through the cooperation between the rotary casting components and the automatic casting components, multiple casting boxes can be fed in succession during the rotary casting process. Automatic feeding does not require manual assistance and is more labor-saving. Secondly, due to the consistent specifications of the casting boxes, the pouring flow rate can be kept consistent when the casting cylinder moves a fixed distance, thereby ensuring good molding quality of the cast parts.

[0021] 2. Through the coordination between the control components and the automatic casting components, the automatic angle tilting can be realized during the movement of the casting cylinder, and the automatic movement and pouring operation of the casting cylinder can be realized. There is no need for auxiliary control of the relationship between the moving distance and the tilting angle, and the requirements for the drive motor are relatively low. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] To facilitate understanding by those skilled in the art, the present invention is further described below with reference to the accompanying drawings.

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the three-dimensional (hidden fixing frame) structure of the present invention;

[0025] Figure 3 It is one of the partially enlarged structural schematic diagrams of the present invention;

[0026] Figure 4 yes Figure 1 An enlarged schematic diagram of part A is shown;

[0027] Figure 5 yes Figure 2 An enlarged schematic diagram of part B is shown;

[0028] Figure 6 This is the second partially enlarged structural diagram of the present invention.

[0029] In the figure: 1. rear machine base; 2. front machine base; 3. casting box; 4. rotating cylinder; 5. central axis; 6. casting cylinder; 7. moving frame; 8. pushing frame; 9. connecting rod; 10. rotating part; 11. supporting cylinder; 12. swing arm; 13. fixed frame; 14. motor; 15. worm; 16. rotating shaft; 17. worm gear; 18. connecting shaft; 19. pulley; 20. belt; 21. threaded pipe; 22. rod body; 23. lifting rod; 24. sleeve rod; 25. shell; 26. screw; 27. connecting part; 28. groove; 29. ​​thickened part; 30. positioning rod; 31. inclined guide plate. DETAILED DESCRIPTION

[0030] The technical solutions of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] See also Figures 1-6As shown, an island-type rotary casting production equipment for automobile parts comprises a rear machine base 1 and a front machine base 2; a rotary casting assembly is symmetrically arranged on the rear machine base 1, and the rotary casting assembly includes a rotating drum 4; a casting box 3 is symmetrically arranged on the left and right between the rear machine base 1 and the front machine base 2, a guide pipe is arranged between the casting box 3 and the adjacent rotating drum 4, an inclined guide plate 31 is fixedly arranged between the two casting boxes 3, and rollers are respectively arranged on both sides of the outer side of the rotating drum 4 for facilitating the rotation of the rotating drum 4, one end of the roller on one side is connected to a driving source, and the roller is driven to rotate by the driving source control, and the rotating drum 4 is driven to rotate by the relative friction between the roller and the rotating drum 4, so as to realize the high-temperature molten metal being poured into the casting box 3 and diverted into the rotating rotating drum 4 through the guide pipe for rotary casting molding, and the inclined guide plate 31 is used to support the casting drum 6 that has lost its support at a specific position to ensure its current tilt angle;

[0032] An automatic casting assembly is provided between the left and right inner walls of the front machine base 2, and the automatic casting assembly includes a central axis 5 rotatably connected to the upper rear side between the left and right inner walls of the front machine base 2, and a casting cylinder 6 is provided outside the central axis 5. The automatic casting assembly also includes a moving assembly arranged at the middle of the front side between the left and right inner walls of the front machine base 2, a moving frame 7 is provided in the moving assembly, a pushing frame 8 is fixed on the moving frame 7, a connecting rod 9 is provided on the pushing frame 8, and a plurality of fasteners are provided outside the connecting rod 9 for limiting the two sides of the two rotating parts 10. The left and right sides of the connecting rod 9 are respectively sleeved with rotating parts 10, and the outer side of the casting cylinder 6 is sleeved with a supporting cylinder 11, and the rotating part 10 is connected to the supporting cylinder 11. The pushing frame 8 is used to adapt to the connection height of the rotating part 10, and the connecting rod 9 is used to guide the rotating part 10. At the same time, the rotating part 10 can be pushed by the fasteners at both ends of the connecting rod 9 to make the casting cylinder 6 move synchronously with the moving frame 7;

[0033] In this embodiment, the control component includes a swing arm 12 fixed to one end of the central axis 5, a fixed frame 13 is fixed on one side of the front base 2 near the swing arm 12, a motor 14 is fixed on one side of the fixed frame 13, a worm 15 is fixed on the output end of the motor 14, one end of the worm 15 is connected to the moving component, the bottom inner wall of the fixed frame 13 is rotatably connected to the rotating shaft 16, the outer side of the rotating shaft 16 is fixed with a worm gear 17, the worm gear 17 is meshed with the worm 15, and the bottom of the fixed frame 13 is located at A connecting shaft 18 is also rotatably connected to the rear of the rotating shaft 16. Pulleys 19 are fixed to the outer lower sides of the rotating shaft 16 and the connecting shaft 18. A belt 20 is tensioned between the two pulleys 19. A threaded tube 21 is fixed to the top of the connecting shaft 18. The inner thread of the threaded tube 21 is connected to a rod body 22. A lifting rod 23 is slidably connected to the front side of the front machine base 2 near the swing arm 12 in the vertical direction. A sleeve rod 24 is fixed to the front end of the lifting rod 23, and the sleeve rod 24 is movably connected to the rod body 22.

[0034] It should be noted that the swing arm 12 is used to be pushed and rotated as the lifting rod 23 moves, thereby driving the central shaft 5 to rotate. The motor 14 can drive the screw 26 in the moving assembly to rotate, and at the same time, the front worm 15 and the worm wheel 17 are engaged, and then the connecting shaft 18 is driven to rotate through the transmission of the pulley. The threaded cooperation between the threaded tube 21 and the rod body 22, and the restriction of the rod 24 on the top of the rod body 22 realize the lifting and lowering movement of the rod body 22. It should be noted that the ratio between the moving distance of the mobile frame 7 and the deflection angle of the central shaft 5 is designed by designing the transmission ratio between the two pulleys 19 of the pulley and the transmission ratio between the worm wheel 17 and the worm 15.

[0035] In this embodiment, the moving assembly includes a shell 25 fixedly connected to the front base 2, a screw rod 26 is rotatably connected inside the shell 25, the moving frame 7 is threadedly connected to the outside of the screw rod 26, the moving frame 7 is slidably connected in the shell 25, and one end of the screw rod 26 is fixedly connected to the adjacent end of the worm 15.

[0036] In this embodiment, connecting parts 27 are fixed on the left and right sides of the front side of the support tube 11 and the middle of the front side of the casting tube 6, and grooves 28 are respectively opened on the top of the left and right sides of the rear side of the support tube 11. Through the connecting parts 27 and the fixing rods inserted therein, the support tube 11 and the casting tube 6 can be easily detachably installed.

[0037] In this embodiment, a thickened portion 29 is fixedly provided on the rear upper inner wall of the casting tube 6, and a guide groove is opened in the middle of the thickened portion 29. The thickened portion 29 facilitates passing the central axis 5 through the casting tube 6 while supporting its outside. The guide groove can guide the flow of molten metal.

[0038] In this embodiment, a number of positioning blocks are provided on the outside of the central axis 5, and a fixing groove matching the outer contour of the central axis 5 is opened in the thickened portion 29, and the central axis 5 is slidably connected in the fixing groove. It should be noted that the positioning block is broken along the extension of the central axis 5 at the center position of the two casting boxes 3. When the casting tube 6 is completely moved to disengage from the positioning block, the radial relationship between it and the central axis 5 changes from relative static to relative rotation. However, supported by the middle inclined guide plate 31, it cannot rotate freely and still maintains the deflection angle before disengaging from the positioning block. At the same time, the central axis 5 will still rotate freely. When the casting tube 6 moves to the rear positioning block for alignment and insertion, the casting tube 6 will again maintain a relative static state with the central axis 5 in the radial direction and continue to deflect synchronously with the central axis 5. This design is to ensure that when the casting tube 6 is between the two casting boxes 3, it will not continue to deflect and dump the high-temperature molten metal.

[0039] In this embodiment, positioning rods 30 are fixedly provided on the upper and lower sides of the front base 2 near the swing arm 12 .

[0040] When the present invention is used, the casting equipment is first connected to a power source, and the rotary casting assembly is started through the controller to rotate the inner rotating cylinder 4. The high-temperature molten metal is poured into the casting cylinder 6 to a certain height through an external device. Then, the motor 14 is started through the control device to perform the casting work. The motor 14 drives the screw rod 26 to rotate through the worm 15, and the screw rod 26 and the movable frame 7 are matched with each other through the thread. The movable frame 7 is driven to move slowly along the length direction of the shell 25. When the movable frame 7 moves, the push frame 8 on it pushes the rotating part 10 to drive the support cylinder 11 and the casting cylinder 6 filled with high-temperature molten metal to move, so that the support cylinder 11 and the casting cylinder 6 slide along the outside of the central axis 5. When the worm 15 is engaged with the worm wheel 17, the rotating worm 15 drives the rotating shaft 16 to rotate, and the pulley 19 and the belt 20 thereunder cooperate to drive the connecting shaft 18 and the threaded tube 21 thereon to rotate. When the threaded tube 21 rotates, the threaded engagement between it and the rod body 22 and the restriction of the rod body 22 by the sleeve rod 24 make the rod body 22 drive the lifting rod 23 to move up slowly through the sleeve rod 24. When the lifting rod 23 moves up, it pushes the swing arm 12 to drive the central shaft 5 to rotate slowly, so that the central shaft 5 further drives the casting tube 6 to rotate, so that the high-temperature molten metal inside is poured into the adjacent casting box 3, and then the high-temperature molten metal enters the rotating rotating tube 4 through the guide tube for centrifugal molding.

[0041] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. An island-type rotary casting production process for automobile parts, characterized in that: The following steps are involved: Step 1: Connect the casting device to a power source, start the rotary casting assembly through the controller, rotate the inner rotating cylinder (4), pour high-temperature molten metal into the casting cylinder (6) to a certain height through an external device, and then start the motor 14 through the control device to start the casting operation; Step 2: The motor (14) drives the screw rod (26) to rotate through the worm (15), and the screw rod (26) and the movable frame (7) are engaged with each other through the thread, so that the movable frame (7) moves slowly along the length direction of the housing (25). When the movable frame (7) moves, the push frame (8) on it pushes the rotating part (10) to drive the support tube (11) and the casting tube (6) filled with high-temperature molten metal to move, so that the support tube (11) and the casting tube (6) slide along the outside of the central axis (5); Step 3: At the same time, the rotating worm (15) drives the rotating shaft (16) to rotate by meshing with the worm wheel (17), and drives the connecting shaft (18) and the threaded tube (21) thereon to rotate through the pulley (19) and the belt (20) thereunder. When the threaded tube (21) rotates, the threaded engagement between the threaded tube (21) and the rod body (22) and the restriction of the rod body (22) by the sleeve rod (24) make the rod body (22) drive the lifting rod (23) to move up slowly through the sleeve rod (24). When the lifting rod (23) moves up, it pushes the swing arm (12) to drive the central shaft (5) to rotate slowly, so that the central shaft (5) further drives the casting tube (6) to rotate, so that the high-temperature molten metal in it is poured into the adjacent casting box (3). After that, the high-temperature molten metal enters the rotating drum (4) through the guide pipe for centrifugal molding.

2. A casting equipment for island-type rotary casting production of automobile parts, characterized in that: An island-type rotary casting production process for automobile parts according to claim 1 comprises a rear base (1) and a front base (2); a rotary casting assembly is symmetrically arranged on the rear base (1), and the rotary casting assembly includes a rotating cylinder (4); a casting box (3) is symmetrically arranged on the left and right between the rear base (1) and the front base (2), a guide tube is provided between the casting box (3) and the adjacent rotating cylinder (4), and an inclined guide plate (31) is fixedly provided between the two casting boxes (3); An automatic casting assembly is provided between the left and right inner walls of the front machine base (2), the automatic casting assembly comprises a central shaft (5) rotatably connected to the upper rear side between the left and right inner walls of the front machine base (2), a casting cylinder (6) is provided outside the central shaft (5), the automatic casting assembly further comprises a moving assembly provided at the middle of the front side between the left and right inner walls of the front machine base (2), a moving frame (7) is provided inside the moving assembly, a pushing frame (8) is fixedly provided on the moving frame (7), a connecting rod (9) is provided on the pushing frame (8), a rotating part (10) is respectively provided on the left and right sides of the connecting rod (9), a supporting cylinder (11) is provided on the outer side of the casting cylinder (6), and the rotating part (10) is connected to the supporting cylinder (11); A control component is also provided on one side of the front base (2), and the control component is respectively connected to the moving component, the front base (2) and the central shaft (5).

3. The casting equipment for island-type rotary casting production of automobile parts according to claim 2, characterized in that: The control assembly includes a swing arm (12) fixedly mounted on one end of the central shaft (5); a fixed frame (13) is fixedly mounted on one side of the front base (2) near the swing arm (12); a motor (14) is fixedly mounted on one side of the fixed frame (13); a worm (15) is fixedly mounted on the output end of the motor (14); one end of the worm (15) is connected to the moving assembly; a rotating shaft (16) is rotatably connected to the inner wall of the bottom of the fixed frame (13); a worm gear (17) is fixedly mounted on the outside of the rotating shaft (16); the worm gear (17) is meshed with the worm gear (15); the bottom of the fixed frame (13) is located at the rotating shaft. The rear of the shaft (16) is also rotatably connected to a connecting shaft (18), the outer lower sides of the rotating shaft (16) and the connecting shaft (18) are fixedly provided with pulleys (19), a belt (20) is tensioned between the two pulleys (19), a threaded tube (21) is fixedly provided on the top of the connecting shaft (18), the inner thread of the threaded tube (21) is connected to a rod body (22), and a lifting rod (23) is slidably connected to the front side of the front machine base (2) near the swing arm (12) in the vertical direction, and a sleeve rod (24) is fixedly provided at the front end of the lifting rod (23), and the sleeve rod (24) is movably connected to the rod body (22).

4. The casting equipment for island-type rotary casting production of automobile parts according to claim 3, characterized in that: The moving assembly comprises a housing (25) fixedly connected to the front base (2); a screw rod (26) is rotatably connected in the housing (25); the moving frame (7) is threadedly connected to the outside of the screw rod (26); the moving frame (7) is slidably connected in the housing (25); and one end of the screw rod (26) is fixedly connected to the adjacent end of the worm (15).

5. The casting equipment for island-type rotary casting production of automobile parts according to claim 4, characterized in that: Connecting parts (27) are fixedly provided on the left and right sides of the front side of the support tube (11) and the middle of the front side of the casting tube (6), and grooves (28) are respectively provided on the tops of the left and right sides of the rear side of the support tube (11).

6. The casting equipment for island-type rotary casting production of automobile parts according to claim 5, characterized in that: A thickened portion (29) is fixedly provided on the rear upper inner wall of the casting cylinder (6), and a guide groove is provided in the middle of the thickened portion (29).

7. The casting equipment for island-type rotary casting production of automobile parts according to claim 6, characterized in that: A plurality of positioning blocks are provided on the outer side of the central shaft (5), and a fixing groove matching the outer contour of the central shaft (5) is provided in the thickened portion (29), and the central shaft (5) is slidably connected in the fixing groove.

8. The casting equipment for island-type rotary casting production of automobile parts according to claim 7, characterized in that: Positioning rods (30) are fixedly provided on the upper and lower sides of the front base (2) near the swing arm (12).

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