Automobile aluminum alloy die casting excess material cutting device
By using a multi-motor driven positioning and cutting assembly, combined with a damping spring and a dual-blade system, the positioning adaptability and cutting accuracy problems of existing automotive aluminum alloy die-casting scrap removal devices have been solved, achieving efficient and precise scrap removal.
Patent Information
- Application Number
- CN202511941916.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-22
- Publication Date
- 2026-01-30
AI Technical Summary
Existing aluminum alloy die-casting scrap removal devices for automobiles suffer from problems such as poor positioning adaptability, insufficient clamping force, low cutting accuracy, inflexible adjustment of cutting components, and incomplete removal, which affect processing efficiency and accuracy.
Employing a multi-motor driven positioning and cutting assembly, combined with damping springs and a clamping plate structure, it enables flexible adjustment of clamping spacing and angle. In conjunction with a dual-blade cutting system, it adapts to die-cast parts of different sizes and shapes, improving cutting accuracy and efficiency.
It achieves precise positioning and stable clamping of die-cast parts of different sizes and shapes, improves cutting accuracy and efficiency, ensures that the workpiece surface is not damaged, and enhances adaptability and versatility.
Smart Images
Figure CN121423716A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of die casting excess material cutting tools, and in particular to an automobile aluminum alloy die casting excess material cutting device. BACKGROUND
[0002] The automobile aluminum alloy die casting is widely applied to the manufacturing of core components such as automobile engines, chassis and vehicle bodies due to the excellent characteristics of light weight, high strength and good formability. The excess material cutting, as a key subsequent process after the die casting forming, is directly related to the dimensional accuracy, surface quality and assembly adaptability of the product. The machining efficiency and cutting precision play a decisive role in the overall production quality and capacity of automobile parts. The existing automobile aluminum alloy die casting excess material cutting device has many deficiencies. The positioning adaptability is poor. The traditional positioning structure is difficult to flexibly adjust the clamping distance and angle, and cannot adapt to die castings of different sizes and shapes. Moreover, the clamping force lacks buffer adjustment, which easily causes scratches on the workpiece surface or unstable clamping, affecting the subsequent cutting precision. The movement and angle adjustment of the cutting assembly are limited. The movement precision in the horizontal, vertical and height directions is insufficient. The cutting angle and inclination adjustment is not flexible, and it is difficult to accurately align the excess material at complex positions, resulting in incomplete cutting. The cutting tool is single, lacks switching function of large and small cutter heads, and cannot balance the efficient rough cutting of large area excess material and the accurate fine cutting of small area and fine part excess material. The positioning assembly and the cutting assembly have poor cooperative linkage. The distance adjustment between the two is complicated, and the ability to adapt to die castings of different heights is weak, further restricting the stability and universality of the cutting operation. Therefore, the above problems need to be improved. SUMMARY
[0003] The application aims to solve the problems in the prior art and provides an automobile aluminum alloy die casting excess material cutting device.
[0004] To achieve the above-mentioned purpose, the application adopts the following technical scheme: an automobile aluminum alloy die casting excess material cutting device, comprising a machine table, two machine boxes are installed on the top surface of the machine table, two first electric push rods are installed in the machine boxes, lifting plates are connected to the output shafts of the two first electric push rods on the same side, connecting frames are installed on the proximal ends of the two lifting plates, a driven lifting assembly is installed in the machine box, and a positioning assembly is installed between the two connecting frames.
[0005] Preferably, the driven lifting assembly comprises a rotating shaft longitudinally connected to the upper end of the cabinet, connecting gears are installed at both ends of the rotating shaft, mounting frames are fixed to the proximal faces of the two lifting plates, driving racks meshing with the connecting gears are installed at the front and rear ends of the mounting frames, driven racks are driven by the other sides of the connecting gears, the driven racks are provided with guide openings, the top surface of the cabinet is provided with sliding openings matching the driven racks, connecting plates are installed on the top surfaces of the two driven racks on the same side, and cutting-off assemblies are installed on the connecting plates.
[0006] Preferably, the positioning assembly comprises first motors installed on the connecting frames, a lifting frame is commonly connected to the output shafts of the two first motors, a U-shaped frame is installed on the bottom surface of the lifting frame, a second motor is installed on the inner bottom surface of the U-shaped frame, a rotating frame is connected to the upper end of the output shaft of the second motor through a flange, and two arc-shaped slot openings for the rotation of the U-shaped frame are formed in the top surface of the rotating frame.
[0007] Preferably, third motors are installed at four ends of the bottom surface of the rotating frame, the output shafts of the third motors penetrate the rotating frame and are connected with driving gears, the driving gears are meshingly driven by moving racks on one side, guide frames are installed at four ends of the top surface of the rotating frame, guide boxes are slidably connected to the guide frames, the guide boxes are connected with the moving racks, moving frames are installed on the top surfaces of the guide boxes, and the moving frames slide in the lifting frame.
[0008] Preferably, mounting plates are fixed to the top surfaces of the moving frames, a plurality of equidistant damping springs are installed on the inner side surfaces of the mounting plates, clamping plates are movably hinged to the damping shafts of the damping springs, and rubber plates are installed on the inner side surfaces of the clamping plates.
[0009] Preferably, the cutting-off assembly comprises positioning frames longitudinally installed on the top surfaces of the connecting plates, first guide rods and first lead screws are respectively installed at the front and rear ends of the two positioning frames, a fourth motor is installed at the rear end of the top surface of one of the positioning frames, the output shaft of the fourth motor is connected with the first lead screw through a shaft coupling, a moving frame is longitudinally arranged between the two positioning frames, the front end of the moving frame is slidably connected with the first guide rod, and the rear end of the moving frame is threadedly connected with the first lead screw.
[0010] Preferably, a second lead screw and a second guide rod are respectively longitudinally installed at both sides of the inner upper end of the moving frame, a fifth motor is installed at the rear end of the top surface of the moving frame, and the fifth motor is connected with the second lead screw through a shaft coupling; the moving frame is slidably connected with a moving seat, and the moving seat is threadedly connected and slidably connected with the second lead screw and the second guide rod on both sides.
[0011] Preferably, the top surface of the moving seat is provided with a sixth motor, the output shaft of the sixth motor penetrates the moving seat and is connected with a second electric push rod through a flange, the lower end of the output shaft of the second electric push rod is movably connected with a cutting frame, and the side of the second electric push rod is movably connected with a third electric push rod, and the output shaft of the third electric push rod is movably connected with the side of the cutting frame.
[0012] Preferably, the cutting frame is movably connected with a tool holder, the side of the cutting frame is provided with a seventh motor, the output shaft of the seventh motor is connected with the tool holder, the two ends of the tool holder are respectively provided with a first cutter and a second cutter, and the other side of the tool holder is respectively provided with an eighth motor and a ninth motor, the output shafts of the eighth motor and the ninth motor are respectively connected with the first cutter and the second cutter, and the diameter of the first cutter is larger than that of the second cutter.
[0013] Compared with the prior art, the beneficial effects of the present application are that: through the cooperation of the third motor, the drive gear, the moving rack, the guide frame, the moving frame, the damping spring, the clamping plate and the rubber plate, the distance between the clamping plates can be flexibly adjusted to adapt to aluminum alloy die castings of different sizes, the damping spring provides a buffer clamping force to avoid damage to the workpiece due to excessive clamping force, the rubber plate enhances the clamping stability and protects the surface of the workpiece from being scratched, and the cooperation of the second motor and the rotating frame realizes precise positioning of the die casting angle and ensures that the excess material is directly opposite the cutting part; through the cooperation of the first electric push rod, the lifting plate, the drive rack, the connecting gear, the driven rack and the connecting plate, the positioning assembly and the cutting assembly can be driven to synchronously and reversely lift, the distance between the two can be flexibly adjusted, the excess material cutting requirements of die castings of different heights can be adapted, and the operation adaptability of the device is improved; through the cooperation of the sixth motor, the second electric push rod, the third electric push rod, the seventh motor, the tool holder and the double cutter, the horizontal angle, the cutting height and the inclination angle of the cutter can be flexibly adjusted, different diameter cutters can be switched to adapt to large area rough cutting and small area fine cutting requirements, and the flexibility and efficiency of the cutting operation are improved. BRIEF DESCRIPTION OF DRAWINGS
[0014] The drawings described herein are used to provide further understanding of the present application, constitute a part of the present application, and the illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings: Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present application; Figure 2 It is a schematic diagram of the internal structure of the case of the present application; Figure 3 It is a schematic diagram of the driven lifting assembly of the present application; Figure 4 It is a schematic diagram of the position relationship between the positioning assembly and the cutting assembly of the present application; Figure 5Fig. 1 is a perspective view of the driven lifting assembly and positioning assembly of the present application; Figure 6 Fig. 2 is a perspective view of the positioning assembly of the present application; Figure 7 Fig. 3 is a top perspective view of the positioning assembly of the present application; Figure 8 Fig. 4 is a schematic view of the connection between the drive gear and the moving rack of the present application; Figure 9 Fig. 5 is a perspective view of the cutting assembly of the present application; Figure 10 Fig. 6 is a schematic view of the connection between the cutting frame and the second electric push rod of the present application.
[0015] Fig. 1 is a perspective view of the driven lifting assembly and positioning assembly of the present application; DETAILED DESCRIPTION
[0016] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application.
[0017] Embodiment 1: refer to Fig. 1 Figures 1 to 10The application discloses an automobile aluminum alloy die casting excess material cutting device, which comprises a machine table 1, machine cases 2 are installed on the top surface of the machine table 1, two first electric push rods 3 are installed in the machine cases 2, lifting plates 4 are connected to the output shafts of the two first electric push rods 3 on the same side, connecting frames 5 are installed on the proximal ends of the two lifting plates 4, a driven lifting assembly is installed in the machine case 2, and a positioning assembly is installed between the two connecting frames 5.
[0018] In the second embodiment, the difference from the technical scheme of the first embodiment is that Figure 4 、 Figure 6 、 Figure 7As shown, the third motor 17 is installed at the bottom of the rotating frame 16, the output shaft of the third motor 17 penetrates the rotating frame 16, and a drive gear 18 is connected to the output shaft of the third motor 17, one side of the drive gear 18 is engaged with a moving rack 19, and a guide frame is installed at the top of the rotating frame 16, a guide frame 20 is slidably connected to the guide frame, the guide frame 20 is connected to the moving rack 19, a moving frame 21 is installed at the top of the guide frame 20, and the moving frame 21 is slidably arranged in the lifting frame 13; the third motor 17 is arranged to facilitate adjustment of the clamping range of the clamping plate 24; the drive gear 18 is arranged to facilitate control of the movement of the moving rack 19; the moving rack 19 is arranged to facilitate adjustment of the distance between the clamping plates 24 to adapt to different sizes of die castings; the guide frame 20 is arranged to facilitate smooth sliding of the moving frame 21; the moving frame 21 is arranged to facilitate synchronous approach or away of the clamping plate 24; the moving frame 21 is fixedly connected to a mounting plate 22, a plurality of equidistant damping springs 23 are installed on the inner side of the mounting plate 22, the damping shaft of the damping spring 23 is movably hinged to a clamping plate 24, and a rubber plate is installed on the inner side of the clamping plate 24; the mounting plate 22 is arranged to facilitate connection of the moving frame 21 and the clamping plate 24; the damping spring 23 is arranged to facilitate provision of a buffer clamping force to avoid damage to the die casting caused by excessive clamping force; the clamping plate 24 and the rubber plate are arranged to facilitate clamping of the die casting; the cutting assembly includes a positioning frame 25 longitudinally installed on the top of the connecting plate 11, a first guide rod 27 and a first lead screw 26 are respectively installed at the front and rear ends of the two positioning frames 25, a fourth motor 28 is installed at the top of one side of the positioning frame 25, the output shaft of the fourth motor 28 is connected to the first lead screw 26 through a shaft coupling, a moving frame 29 is longitudinally arranged between the two positioning frames 25, the front end of the moving frame 29 is slidably connected to the first guide rod 27, and the rear end of the moving frame 29 is threadedly connected to the first lead screw 26; the positioning frame 25 is arranged to facilitate provision of support and installation basis for transverse movement of the cutting assembly; the first lead screw 26, the first guide rod 27, and the fourth motor 28 are arranged to facilitate control of transverse movement of the moving frame 29; the moving frame 29 is arranged to facilitate provision of support and installation basis for longitudinal movement of the cutting assembly.
[0019] Example three: the technical scheme is basically the same as that of example one, the difference is that Figure 8 , Figure 9 , Figure 10As shown, the second lead screw 30 and the second guide rod 31 are longitudinally arranged on both sides of the upper end of the moving frame 29, the fifth motor 32 is arranged on the top surface of the moving frame 29, and the fifth motor 32 is connected with the second lead screw 30 through a coupling; the moving seat 33 is slidingly connected with the moving frame 29, and the moving seat 33 is threadedly connected with the second lead screw 30 and slidingly connected with the second guide rod 31; the longitudinal movement of the moving seat 33 is controlled through the second lead screw 30, the second guide rod 31 and the fifth motor 32; the cutting frame 36 and the cutter disc assembly are carried through the moving seat 33; the sixth motor 34 is arranged on the top surface of the moving seat 33, the output shaft of the sixth motor 34 penetrates the moving seat 33, and the second electric push rod 35 is connected with the output shaft through a flange, the lower end of the output shaft of the second electric push rod 35 is movably connected with the cutting frame 36, one side of the second electric push rod 35 is movably connected with the third electric push rod 37, and the output shaft of the third electric push rod 37 is movably connected with one side of the cutting frame 36; the horizontal angle of the cutting cutter disc is adjusted through the sixth motor 34, and the excess material in different directions is adapted; the cutting height of the cutter disc is adjusted through the second electric push rod 35, and the thickness of the excess material of the die casting is adapted; the cutter disc assembly is installed through the cutting frame 36; the inclination angle of the cutting frame 36 is adjusted through the third electric push rod 37, so that the cutter disc is attached to the surface of the excess material; the tool holder 38 is rotatably connected in the cutting frame 36, the seventh motor 39 is arranged on one side of the cutting frame 36, the output shaft of the seventh motor 39 is connected with the tool holder 38, the first cutter disc 40 and the second cutter disc 42 are arranged at both ends of the tool holder 38, the eighth motor 41 and the ninth motor 43 are arranged on the other side of the tool holder 38, the output shafts of the eighth motor 41 and the ninth motor 43 are connected with the first cutter disc 40 and the second cutter disc 42 respectively, and the diameter of the first cutter disc 40 is larger than that of the second cutter disc 42; the first cutter disc 40 and the second cutter disc 42 are installed through the tool holder 38; the first cutter disc 40 and the second cutter disc 42 are arranged to cut the excess material of different sizes.
[0020] Working principle: in the embodiment, the application further provides a use method of the automobile aluminum alloy die casting excess material cutting device, which comprises the following steps: Step one, first connect all the electrical equipment in the device (including the first electric push rod 3, each motor, etc.) and complete the power supply, ensure stable power supply; then, according to the size of the aluminum alloy die casting to be processed, adjust the initial distance between the positioning assembly and the cutting assembly: start the first electric push rod 3 installed in the machine case 2 on both sides of the machine 1, the output shaft of the first electric push rod 3 drives the lifting plate 4 to move up and down, and the connecting frame 5 near the lifting plate 4 moves synchronously with the lifting plate 4; the mounting bracket 8 near the lifting plate 4 drives the driving rack 9 to move up and down synchronously, because the driving rack 9 is engaged with the connecting gear 7 at both ends of the upper end shaft 6 inside the machine case 2, the lifting power of the driving rack 9 is converted into the rotating power of the connecting gear 7; the connecting gear 7 on the other side is engaged with the driven rack 10 to drive the driven rack 10 to slide smoothly along the sliding port opened on the top surface of the machine case 2, and then drive the connecting plate 11 on the top surface of the two driven racks 10 on the same side to move up and down in the opposite direction of the lifting plate 4, finally realize the accurate pre-adjustment of the distance between the positioning assembly and the cutting assembly, and lay the foundation for subsequent workpiece clamping and cutting operation; Step two, when the distance pre-adjustment is completed, adjust the clamping angle of the positioning assembly according to the specific shape of the die casting: start the first motor 12 on the connecting frame 5 to adjust the longitudinal height of the lifting frame 13, so that the U-shaped frame 14 is at the adaptive clamping height; then start the second motor 15 installed on the inner bottom surface of the U-shaped frame 14, the output shaft of the second motor 15 drives the rotating frame 16 to rotate through the flange, the arc-shaped slot opened on the top surface of the rotating frame 16 provides guidance for the rotation of the U-shaped frame 14, ensuring smooth rotation; through the rotation of the rotating frame 16, the subsequent clamping structure is adjusted synchronously to make the clamping plate 24 adapt to the shape of the die casting, ensuring the fit of subsequent clamping; Step three, when the clamping angle is adjusted in place, clamp and fix the die casting: start the third motor 17 at the four ends of the bottom surface of the rotating frame 16, the output shaft of the third motor 17 penetrates the rotating frame 16 and drives the driving gear 18 to rotate; the driving gear 18 is engaged with the moving rack 19 to drive the guiding frame 20 on the four ends of the top surface of the rotating frame 16 to slide smoothly, and the moving frame 21 connected with the guiding frame 20 moves synchronously along the lifting frame 13, so that the clamping plate 24 inside the mounting plate 22 on the top surface of the moving frame 21 moves towards the die casting; the multiple equidistant damping springs 23 connected between the mounting plate 22 and the clamping plate 24 provide buffering clamping force, and the rubber plate on the inner surface of the clamping plate 24 increases the friction force, avoiding damage to the die casting due to excessive clamping force; finally, through the movable hinged structure of the damping spring 23 and the clamping plate 24, the clamping plate 24 tightly adheres to the surface of the die casting, completing the firm fixation of the die casting; Step four, when the die casting is fixed, drive the cutting assembly to move to the starting cutting position of the excess material: start the fourth motor 28 connected to the top surface of the rear end of the positioning frame 25 of the top surface of the connecting plate 11, and the output shaft of the fourth motor 28 drives the first lead screw 26 between the two positioning frames 25 to rotate through the shaft coupling; because the first guide rod 27 and the first lead screw 26 are respectively installed at the front and rear ends of the two positioning frames 25, the moving frame 29 connected with the first lead screw 26 in screw and with the first guide rod 27 in sliding moves stably along the longitudinal direction; at the same time, start the fifth motor 32 at the top surface of the rear end of the moving frame 29, and the fifth motor 32 drives the second lead screw 30 inside the upper end of the moving frame 29 to rotate through the shaft coupling, and the moving seat 33 connected with the second lead screw 30 in screw and with the second guide rod 31 in sliding on the other side of the moving frame 29 moves stably; through the horizontal movement driven by the fourth motor 28 and the longitudinal movement driven by the fifth motor 32, the cutting frame 36 and the cutter head assembly below the moving seat 33 are accurately moved to the starting cutting position of the excess material of the die casting, and the accurate positioning of the cutting path is completed; Step five, when the cutting path positioning is completed, the excess material cutting operation is carried out and the equipment is finished: first, according to the area size and position accuracy requirement of the excess material, start the seventh motor 39 on one side of the cutting frame 36, the output shaft of the seventh motor 39 drives the cutter holder 38 rotatingly connected in the cutting frame 36 to rotate, and switch to the adaptive cutter head (the first cutter head 40 with larger diameter at one end of the cutter holder 38 is selected for large-area excess material, and the second cutter head 42 with smaller diameter at the other end is selected for small-area or fine-position excess material); then start the eighth motor 41 or the ninth motor 43 connected with the corresponding cutter head, drive the selected cutter head to rotate at high speed; start the sixth motor 34 on the top surface of the moving seat 33, the output shaft of the sixth motor 34 drives the second electric push rod 35 to rotate, adjusts the horizontal cutting angle of the cutter head; at the same time, start the third electric push rod 37 movably hinged on one side of the second electric push rod 35, the output shaft of the third electric push rod 37 pushes the cutting frame 36 to tilt around the hinged point with the second electric push rod 35, so that the high-speed rotating cutter head closely contacts the surface of the excess material; start the second electric push rod 35, the output shaft of the second electric push rod 35 drives the high-speed rotating cutter head to move downward, and the excess material cutting operation is carried out; during the cutting process, the positions of the moving frame 29 and the moving seat 33 can be continuously fine-tuned through the fourth motor 28 and the fifth motor 32, to ensure that the excess material is completely cut off; after all the excess material cutting is completed, the power supply of all electrical equipment is turned off, and the finishing treatment after the equipment is used is completed.
[0021] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical solution and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.
Claims
1. An automobile aluminum alloy die casting excess material cutting device, comprising a machine table (1), characterized in that: The machine platform (1) top surface both sides are equipped with machine case (2), the machine case (2) is equipped with two first electric push rod (3) inside, same side two first electric push rod (3) output shaft is connected with lifting plate (4), two lifting plate (4) proximal end is equipped with connecting frame (5), and the machine case (2) is equipped with driven lifting assembly inside, two connecting frame (5) between installation is equipped with positioning assembly.
2. The apparatus for cutting off the excess material of an automobile aluminum alloy die casting according to claim 1, wherein: The driven lifting assembly includes longitudinal rotation connection in the machine case (2) inside upper end pivot (6), the pivot (6) both ends are equipped with connecting gear (7), two lifting plate (4) proximal face is fixedly connected with mounting bracket (8), the mounting bracket (8) front and rear end is equipped with the drive rack (9) with connecting gear (7) meshing, the connecting gear (7) other side meshing transmission driven rack (10), the driven rack (10) is equipped with guide opening, the machine case (2) top surface is equipped with the sliding port of cooperation driven rack (10), same side two driven rack (10) top surface is equipped with connecting plate (11), the connecting plate (11) is equipped with cutting assembly on.
3. The apparatus for cutting off the excess material of an automobile aluminum alloy die casting according to claim 1, wherein: The positioning assembly includes first motor (12) installed on connecting frame (5), two first motor (12) output shaft is commonly connected with lifting frame (13), the lifting frame (13) bottom surface is equipped with U-shaped frame (14), the U-shaped frame (14) inner bottom surface is equipped with second motor (15), the second motor (15) output shaft upper end is connected with rotating frame (16) through flange, the rotating frame (16) top surface circumferential side is equipped with two arc-shaped strip openings for U-shaped frame (14) rotation.
4. The apparatus for cutting off the excess material of an automobile aluminum alloy die casting according to claim 3, wherein: The rotating frame (16) bottom surface four ends are equipped with third motor (17), the third motor (17) output shaft upper end penetrates rotating frame (16), and is connected with drive gear (18), the drive gear (18) one side meshing transmission is equipped with moving rack (19), and the rotating frame (16) top surface four ends are equipped with guide frame, the guide frame is slidably connected with guide frame (20), the guide frame (20) is connected with moving rack (19), and the guide frame (20) top surface is equipped with moving frame (21), the moving frame (21) is placed in lifting frame (13) and slides.
5. The apparatus for cutting off the excess material of an automobile aluminum alloy die casting according to claim 4, wherein: The moving frame (21) top surface is fixedly connected with mounting plate (22), the mounting plate (22) inner side surface is equipped with multiple equidistant damping springs (23), the damping shaft of the damping spring (23) is movably hinged with clamping plate (24), the clamping plate (24) inner side surface is equipped with rubber plate.
6. The apparatus for cutting off the excess material of an automobile aluminum alloy die casting according to claim 2, wherein: The resection assembly includes positioning frame (25) installed on the top surface of connecting plate (11) longitudinally, first guide rod (27) and first lead screw (26) are installed on the front and rear ends of positioning frame (25) respectively, fourth motor (28) is installed on the top surface of the rear end of one side positioning frame (25), the output shaft of fourth motor (28) is connected with first lead screw (26) through coupling, and moving frame (29) is longitudinally arranged between the two positioning frames (25), the front end of moving frame (29) is connected with first guide rod (27) in sliding mode, and the rear end of moving frame (29) is connected with first lead screw (26) in screw mode.
7. The apparatus for cutting off the excess material of an automobile aluminum alloy die casting according to claim 6, wherein: Second lead screw (30) and second guide rod (31) are longitudinally installed on the both sides of the upper end of the inside of moving frame (29), fifth motor (32) is installed on the top surface of the rear end of moving frame (29), and fifth motor (32) is connected with second lead screw (30) through coupling; moving seat (33) is connected with moving frame (29) in sliding mode, and moving seat (33) is connected with second lead screw (30) and second guide rod (31) in screw mode and sliding mode respectively.
8. The apparatus for cutting off the excess material of an automobile aluminum alloy die casting according to claim 7, wherein: Sixth motor (34) is installed on the top surface of moving seat (33), the output shaft of sixth motor (34) penetrates moving seat (33) and is connected with second electric push rod (35) through flange, the lower end of the output shaft of second electric push rod (35) is movably hinged with cutting frame (36), and third electric push rod (37) is movably hinged on one side of second electric push rod (35), and the output shaft of third electric push rod (37) is movably hinged with one side of cutting frame (36).
9. The apparatus for cutting off the excess material of an automobile aluminum alloy die casting according to claim 8, wherein: Knife holder (38) is rotatably connected in cutting frame (36), seventh motor (39) is installed on one side of cutting frame (36), the output shaft of seventh motor (39) is connected with knife holder (38), first cutter (40) and second cutter (42) are installed on the both ends of knife holder (38) respectively, and eighth motor (41) and ninth motor (43) are installed on the other side of knife holder (38) respectively.
10. The apparatus for cutting off the excess material of an automobile aluminum alloy die casting according to claim 9, wherein: The output shafts of eighth motor (41) and ninth motor (43) are connected with first cutter (40) and second cutter (42) respectively, and the diameter of first cutter (40) is larger than that of second cutter (42).