Automatic cutting machining device for metal die casting

Abstract

The invention discloses an automatic cutting machining device for metal die castings, and relates to the technical field of cutting devices. The die casting machining device comprises a workbench, a cutting assembly and a driving mechanism used for driving the cutting assembly to move for cutting, a machining table is arranged on the workbench, a plurality of machining openings are formed in the surface of the machining table, and supporting assemblies are installed in the machining openings and used for supporting die castings; the cutting assembly comprises a mounting plate, a straight face cutter and a straight face grinding plate are fixedly arranged on the side wall of the mounting plate, U-shaped connecting pieces are arranged on the two sides of the mounting plate in a sliding mode, an arc face cutter is arranged on the lower side of each connecting piece, and an arc face grinding plate is arranged on the upper side of each connecting piece. The driving mechanism is connected with the cutting assembly; the problem that in the prior art, when a cutting plate cuts a die casting, the side edge chamfering area of the die casting with the side edge chamfering cannot be cut is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cutting devices, in particular to an automatic cutting device for metal die castings. BACKGROUND

[0002] Metal die castings are widely used in the manufacturing fields of automobiles, aerospace, etc. due to their high precision and high strength. During the die casting process, the flash is easily generated due to the process and mold factors, which needs to be treated subsequently. The excess structure directly restricts the quality of the die casting. The existing die casting flash treatment is time-consuming and laborious, and the efficiency is low.

[0003] According to the search, a die casting flash removal device is disclosed in the Chinese patent with the publication number CN118357743A. The device includes a base, an electric push rod installed at the corners of the top outer wall of the base, a bracket fixedly connected to the end of the piston rod of the electric push rod, a motor installed on one side of the bracket, a double screw rod connected to the output shaft of the motor through a coupling, a sliding frame connected to the outer wall of the double screw rod through threads, a rectangular slot formed in the outer wall of the sliding frame, and an inner rod fixedly connected to the inner wall of the rectangular slot. The device can stably cut off the flash when the second cutting plate continues to move, and can completely cut off the protruding flash structure to the greatest extent. The device avoids the phenomenon that the simple pressing structure cannot guarantee that the flash is completely cleaned, the flash is broken and remains, and the flash is bent and tightly pressed against the side edge of the die casting. The device improves the use efficiency of the die casting flash removal device.

[0004] In the above-mentioned application, the cutting plate cannot cut the side edge chamfering area of the die casting with side edge chamfering when cutting the die casting, which needs to be improved. SUMMARY

[0005] The present application aims to provide an automatic cutting device for metal die castings, which solves the problem that the cutting plate cannot cut the side edge chamfering area of the die casting with side edge chamfering when cutting the die casting in the prior art.

[0006] To solve the above-mentioned problems, the present application adopts the following technical means: The utility model provides an automatic cutting device for metal die casting, which comprises a workbench, a cutting assembly and a driving mechanism for driving the cutting assembly to move for cutting, a processing table is arranged on the workbench, a plurality of processing openings are formed on the surface of the processing table, a supporting assembly is installed in each processing opening for supporting the die casting, the cutting assembly comprises a mounting plate, a straight-face cutting tool and a straight-face polishing plate are fixedly arranged on the side wall of the mounting plate, a U-shaped connecting piece is slidably arranged on both sides of the mounting plate, an arc-face cutting tool is arranged on the lower side of the connecting piece, and an arc-face polishing plate is arranged on the upper side of the connecting piece, and the driving mechanism is connected with the cutting assembly.

[0007] Preferably, the symmetry axis of the arc-face cutting tool forms a 45° angle with the cutting edge of the straight-face cutting tool, and the symmetry axis of the arc-face polishing plate forms a 45° angle with the polishing surface of the straight-face polishing plate.

[0008] Further, the arc-face cutting tool is composed of a plurality of cutting tools arranged in a stack and gradually changing in inner diameter, the arc-face polishing plate is composed of a plurality of polishing plates arranged in a stack and gradually changing in inner diameter, the outer side walls of the cutting tools and the polishing plates are respectively fixedly connected with horizontally arranged elastic telescopic rods, and the other ends of the elastic telescopic rods are fixedly connected with the connecting piece.

[0009] Still further, the connecting piece comprises a U-shaped connecting body, first electric push cylinders are fixedly arranged on the upper and lower sides of the connecting body, semicircular mounting racks are fixedly connected with the driving ends of the first electric push cylinders, and the mounting racks are used for mounting the arc-face cutting tool and the arc-face polishing plate.

[0010] Still further, an adjusting module is fixedly arranged on the side wall of the mounting plate, the adjusting module adopts an electric sliding table or an electric push cylinder, and the adjusting module is used for driving the connecting piece to move in the same direction or in the opposite direction.

[0011] Still further, the driving mechanism comprises a support fixedly arranged at the top end of the workbench, a second motor, a rotating plate, a cross sliding table, a first air cylinder and a U-shaped frame, the second motor drives the rotating plate to rotate, the cross sliding table drives the cutting assembly to move, and the first air cylinder and the U-shaped frame realize clamping and positioning of the die casting.

[0012] Still further, the supporting assembly comprises a support frame arranged in the processing opening, a plurality of groups of elastically telescopic supporting arms rotatably arranged on the outer side of a stand column, the supporting arms comprise an arm body, a clamping block slidably arranged in a sliding groove and a first elastic member.

[0013] Further, the stand column is internally provided with a mounting cavity, a pressing head is slidably arranged in the mounting cavity, the pressing head is made of ferromagnetic material, a supporting protrusion is fixedly connected to the side wall of the pressing head, and a second elastic member is arranged between the pressing head and the mounting cavity.

[0014] Further, an annular groove is formed on the upper surface of the lower surface of the processing table, a magnetic ring is fixedly arranged in the groove, and the magnetic ring cooperates with the ferromagnetic pressing head in the supporting assembly to assist the downward pressing action of the supporting arm through magnetic attraction force during processing.

[0015] Further, the device further comprises a scraper, the scraper is fixedly connected to the bottom end of the stand column of the supporting frame and moves with the rotation of the processing table, is used for collecting the cutting debris generated in the cutting process, and automatically cleans through the collection port at the lower part of the workbench, thereby improving the processing efficiency.

[0016] The application provides a metal die casting automatic cutting processing device. The straight-face cutting knife, the straight-face polishing plate, the arc-face cutting knife and the arc-face polishing plate are arranged at an angle of 45°, which can not only cut and polish the side edge flash of the die casting, but also accurately process the excess structure in the side edge chamfer area, solves the problem that the traditional device cannot be adapted to chamfer processing, and realizes the comprehensiveness of flash cleaning.

[0017] The arc-face cutting knife and the arc-face polishing plate are stacked by a plurality of groups of components with gradually changed inner diameters, and can be automatically adapted according to the chamfer size in cooperation with the elastic expansion rod; the adjusting module can adjust the position of the connecting piece to adapt to die castings of different length and width sizes, and simultaneously adapt to the processing requirements of workpieces of various shapes such as square, circular, block and shell.

[0018] The motor, the cross slide and the cylinder in the driving mechanism act cooperatively to realize accurate positioning of the cutting assembly and clamping of the workpiece, prevent deviation during processing, and the supporting assembly cooperates with the clamping block, the elastic member and the magnetic ring to ensure stable support of the workpiece and non-interference with the processing flow.

[0019] The first motor drives the processing table to rotate to realize automatic circulation of the workpiece, the driving mechanism can complete workpiece overturning and multi-surface processing, reduces manual intervention, the scraper automatically collects cutting debris with the rotation of the processing table, and the supporting arm can be automatically reset, thereby improving the processing efficiency and reducing the subsequent cleaning cost. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a perspective view of the application; Figure 2 It is a schematic view of the workbench structure of the application; Figure 3 It is a schematic view of the cutting assembly structure of the application; Figure 4Another structural schematic view of the cutting assembly of the present application; Figure 5 A partial sectional view of the connecting piece of the present application; Figure 6 A structural schematic view of the driving mechanism of the present application; Figure 7 A structural schematic view of the support assembly of the present application; Figure 8 A structural schematic view of the support frame of the present application; Figure 9 An enlarged view of A of the present application; Figure 8 Figure 10 A structural schematic view of the internal structure of the stand of the present application; Figure 11 Another structural schematic view of the internal structure of the stand of the present application.

[0021] Wherein, 1 - workbench, 2 - first motor, 3 - machining table, 4 - cutting assembly, 401 - mounting plate, 402 - straight surface cutting knife, 403 - arc surface cutting knife, 405 - connecting piece, 406 - straight surface polishing plate, 407 - arc surface polishing plate, 408 - elastic telescopic rod, 409 - adjusting module, 4051 - connecting body, 4052 - first electric push cylinder, 4053 - mounting frame, 4054 - fixed wall, 4055 - stop block, 4056 - positioning hole, 4057 - second electric push cylinder, 4058 - third electric push cylinder, 4059 - fourth electric push cylinder, 5 - driving mechanism, 501 - second motor, 502 - cross slide, 503 - first air cylinder, 504 - U-shaped frame, 505 - third motor, 506 - rotating plate, 507 - second air cylinder, 6 - machining opening, 7 - support assembly, 71 - support frame, 72 - scraper, 74 - magnetic ring, 75 - pressing block, 711 - stand, 712 - support arm, 713 - clamping groove, 715 - support protrusion, 716 - extrusion head, 717 - second elastic member, 7121 - arm body, 7122 - clamping block, 7123 - first elastic member, 8 - bracket. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0023] ​Therefore, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the application as claimed, but merely represents selected embodiments of the application. Based on the embodiments of the application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the application.

[0024] It should be noted that the embodiments and features in the embodiments of the application can be combined with each other without conflict.

[0025] It should be noted that: similar reference numerals and letters in the following drawings represent similar items, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0026] In the description of the application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly understood by those skilled in the art, and are only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application. In addition, the terms "first", "second" and the like are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0027] In the description of the application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0028] Please refer to the accompanying drawings Figure 1 - the accompanying drawings Figure 3The utility model provides a kind of metal die casting automatic cutting processing device, including workbench 1, cutting assembly 4 and the driving mechanism 5 for driving cutting assembly 4 to move to cut, cutting assembly 4 includes mounting plate 401, the side wall of mounting plate 401 is fixed with straight face cutting tool 402, and the symmetry axis of cambered surface cutting tool 403 is 45 ° angle with straight face cutting tool 402 blade, the both sides of mounting plate 401 are slidably provided with U-shaped connecting piece 405, connecting piece 405 lower side is provided with semicircular cambered surface cutting tool 403, the inside one end of cambered surface cutting tool 403 is located straight face cutting tool 402 blade directly below, and cambered surface grinding plate 407 is provided on the upper side of connecting piece 405, and the side wall of mounting plate 401 is fixed with straight face grinding plate 406, the inside one end of cambered surface grinding plate 407 is located straight face grinding plate 406 grinding surface directly below, and the symmetry axis of cambered surface grinding plate 407 is 45 ° angle with straight face grinding plate 406 grinding surface, the side wall of mounting plate 401 is fixed with adjusting module 409 for adjusting the position of connecting piece 405, straight face cutting tool 402 blade and straight face grinding plate 406 grinding surface are in the same vertical plane, and cambered surface cutting tool 403 and cambered surface grinding plate 407 are single and can be fixed with the connecting piece 405 connected respectively.

[0029] Specifically, after die casting, the die casting is placed below the cutting assembly 4, the position of the cutting assembly 4 is adjusted by the driving mechanism 5, so that the blade of the straight face cutting tool 402 is located at the side edge of the die casting, then the side edge flash of the die casting can be cut by lowering the straight face cutting tool 402, and the side edge of the die casting can be polished by the straight face grinding plate 406, thereby improving the cleaning effect of the flash of the die casting, and by adjusting the positions of the cambered surface cutting tool 403 and the cambered surface grinding plate 407 at the chamfered side edge of the die casting, the chamfer of the side edge of the die casting can be cut and polished when the cambered surface cutting tool 403 and the cambered surface grinding plate 407 are lowered, so that the side edge flash of the die casting can be cleaned comprehensively.

[0030] In another embodiment, referring to the accompanying drawings Figure 4 The adjusting module 409 adopts an electric sliding table with a bidirectional screw or two electric push cylinders, when the adjusting module 409 adopts the electric sliding table, the two sliding blocks of the electric sliding table are fixedly connected with the two connecting pieces 405 respectively, when the adjusting module 409 adopts the electric push cylinders, the driving ends of the two electric push rods are fixedly connected with the connecting pieces 405 respectively, and the electric sliding table is adopted in the embodiment.

[0031] Specifically, the two connecting pieces 405 are driven to move synchronously towards each other or in opposite directions by the operation of the electric sliding table, so that the positions of the cambered surface cutting tool 403 and the cambered surface grinding plate 407 can be adjusted according to the size of the die casting, and the device is suitable for die castings with different sizes.

[0032] In another embodiment, referring to the accompanying drawings Figure 3 - the accompanying drawings Figure 5, the arc surface polishing plate 407 is composed of a plurality of polishing plates arranged in stack and gradually decreasing or increasing in inner diameter, the arc surface cutting tool 403 is composed of a plurality of cutting tools arranged in stack and gradually decreasing or increasing in inner diameter, the outer side walls of the polishing plate and the cutting tool are respectively fixedly provided with the horizontally arranged elastic expansion rod 408, the elastic expansion rod 408 controls the moving track of the cutting tool and the polishing plate to be 45° with the blade of the straight surface cutting tool 402 and the polishing surface of the straight surface polishing plate 406, the other end of the elastic expansion rod 408 is fixedly connected with the connecting piece 405, in the embodiment, the polishing plate and the cutting tool are respectively provided with three groups, the specific number can be flexibly adjusted, and the embodiment is not limited, when the arc surface cutting tool 403 and the arc surface polishing plate 407 are multiple, the adjacent arc surface cutting tool 403 or arc surface polishing plate 407 can be slidably connected, and the arc surface cutting tool 403 or arc surface polishing plate 407 abutting the connecting piece 405 can also be slidably connected with the connecting piece 405, so that the stability is enhanced.

[0033] Specifically, the elastic expansion rod 408 is stretched to the maximum amplitude, so that the outer walls of the multiple groups of polishing plates are on the same vertical arc surface and concentrically distributed, the outer walls of the multiple groups of cutting tools are on the same vertical arc surface and concentrically distributed, in use, the cutting tool and the polishing plate are controlled to move and abut the side chamfer of the die casting by the adjusting module 409, under the action of the extrusion force, the cutting tool and the polishing plate smaller than the chamfer size move to the rear side, and the cutting tool and the polishing plate matching the chamfer size abut the chamfer, so that according to the different chamfer sizes of the side chamfer of the die casting, the matching cutting tool and polishing plate can be selected, and the die casting with various chamfer sizes can be used.

[0034] In another embodiment, please refer to the accompanying Figure 4 -attached Figure 5 The two sharp ends of the cutting tool and the polishing plate smaller than the chamfer size abut the chamfer of the die casting and produce linear scratches and wear on the chamfer surface during lifting, the following scheme is proposed in the embodiment to solve the above problems, the surface of the connecting piece 405 is fixedly provided with the fourth electric push cylinder 4059, the driving end of the fourth electric push cylinder 4059 is fixedly provided with the blocking block 4055, the surface of the polishing plate and the cutting tool is provided with the positioning hole 4056, the surface of the connecting piece 405 is fixedly provided with the horizontally arranged second electric push cylinder 4057, the driving end of the second electric push cylinder 4057 is fixedly provided with the vertically arranged third electric push cylinder 4058.

[0035] Specifically, the third electric push cylinder 4058 is driven by the second electric push cylinder 4057 to move to below the positioning hole 4056, and then the third electric push cylinder 4058 is extended to insert into the positioning hole 4056, so as to connect the chamfer size smaller cutting tool or polishing plate, and then the second electric push cylinder 4057 is retracted to pull back the chamfer size smaller cutting tool or polishing plate, so as to avoid the edge of the chamfer size smaller cutting tool or polishing plate from scratching the chamfer when moving and reducing the wear effect, and the fourth electric push cylinder 4059 is extended to push the blocking block 4055 to move to the outside of the chamfer size matching cutting tool or polishing plate, so as to form a limiting effect, so that the cutting tool or polishing plate can be stably attached to the chamfer outer surface, avoiding the elastic shaking caused by the elastic telescopic rod 408, thereby improving the chamfer cutting or polishing effect.

[0036] In another embodiment, please refer to the accompanying drawings Figure 4 -Appendix Figure 5 The connecting piece 405 includes a U-shaped connecting body 4051, and the upper and lower sides of the connecting body 4051 are respectively fixedly provided with a first electric push cylinder 4052. The driving end of the first electric push cylinder 4052 is fixedly provided with a semicircular mounting rack 4053, which is used to connect the fourth electric push cylinder 4059. The outer side of the connecting piece 405 is fixedly provided with a fan-shaped fixed wall 4054, which is used to connect the elastic telescopic rod 408 and the second electric push cylinder 4057.

[0037] Specifically, after the position of the cutting tool or polishing plate is adjusted, the first electric push cylinder 4052 is moved to drive the mounting rack 4053 to move, so as to adjust the position of the cutting tool or polishing plate, so that one end of the chamfer size matching cutting tool or polishing plate is in the same vertical plane with the straight face cutting tool 402 blade and the straight face polishing plate 406 polishing surface, so that the chamfer can be machined at the same time when the side of the die casting is machined.

[0038] In another embodiment, please refer to the accompanying drawings Figure 6 The workbench 1 is fixedly provided with a support 8 at the top end, and the driving mechanism 5 includes a second motor 501 fixedly arranged at the top end of the support 8. The driving end of the second motor 501 is fixedly connected with a rotating plate 506, and the two sides of the rotating plate 506 are respectively fixedly provided with a cross slide 502. The sliding block of the cross slide 502 is fixedly provided with a first air cylinder 503, and the driving end of the first air cylinder 503 is fixedly connected with a U-shaped rack 504. The inner side of the U-shaped rack 504 is fixedly provided with a third motor 505, and the driving end of the third motor 505 is fixedly connected with the mounting plate 401. The center of the rotating plate 506 is fixedly provided with a second air cylinder 507.

[0039] Specifically, the second motor 501 drives the rotating plate 506 to rotate, adjusts the cutting area of the cutting assembly 4, polishes the four sides of the die casting, the cross slide 502 drives the cutting assembly 4 to move, the position of the cutting assembly 4 can be adjusted according to the size of the die casting, so that the cutting assembly 4 can cut the side of the die casting, and the second motor 501 and the cross slide 502 cooperate to drive the die casting to move, the position of the die casting can be adjusted, and the second cylinder 507 extends against the die casting to achieve the effect of automatic positioning and clamping, so as to avoid the die casting from shifting during cutting, and the third motor 505 drives the cutting assembly 4 to overturn 180°, so that the cutting and polishing can be performed from bottom to top or from top to bottom; when processing the square die casting, the cross slide 502 drives the cutting assembly 4 to clamp the die casting, the first cylinder 503 is operated to adjust the height of the die casting, and finally the third motor 505 is operated to drive the die casting to overturn 90°, so that the original upper and lower surfaces of the die casting are adjusted to the front and rear surfaces, so that the cutting assembly 4 can process the six surfaces thereof; when processing the circular die casting, the above steps can be used to process the upper and lower surfaces of the circular die casting, and when processing the side of the circular die casting, the third motor 505 drives the cutting assembly 4 to rotate from horizontal to vertical, the cross slide 502 drives the cutting assembly 4 to move, so that the straight surface cutting tool 402 or the curved surface cutting tool 403 is first abutted against the side of the circular die casting, and then the cutting assembly 4 is rotated by the second motor 501, so that the side of the circular die casting and the upper and lower corner areas thereof are cut, and the curved surface cutting tool 403 and the curved surface polishing plate 407 are abutted against the side of the circular die casting for polishing, so that the flash of the circular die casting can be effectively removed, and the device is suitable for processing die castings of various shapes.

[0040] In another embodiment, please refer to the accompanying Figure 2 and the accompanying Figure 7 , the workbench 1 is provided with a U-shaped workbench 1, and a first motor 2 is fixedly arranged at the center of the workbench 1. The driving end of the first motor 2 is fixedly provided with a machining table 3. A plurality of machining openings 6 are formed in the surface of the machining table 3. A supporting assembly 7 for supporting the die casting is arranged in the machining opening 6.

[0041] Specifically, the die casting is placed on the supporting assembly 7, and the machining table 3 is rotated by the first motor 2, so that the die casting is sequentially rotated to the lower side of the cutting assembly 4 for automatic cutting.

[0042] In another embodiment, please refer to the accompanying Figure 8 - the accompanying Figure 9The support frame 71 comprises a column 711, the bottom end of the column 711 is fixedly provided with a scraper 72, one end of the scraper 72 is fixedly connected with the machining table 3, the outer side of the column 711 is rotatably provided with four groups of support arms 712 which can elastically stretch and retract, the inner side wall of the machining port 6 is provided with a clamping groove 713, the bottom of the U-shaped frame 504 is fixedly provided with a pressing block 75, the support arm 712 comprises an arm body 7121, one end of the arm body 7121 is provided with a sliding groove, a clamping block 7122 is slidably arranged in the sliding groove, a first elastic member 7123 is fixedly arranged between the clamping block 7122 and the sliding groove, the lower table surface of the workbench 1 is provided with a collecting port, when the scraper 72 rotates with the machining table 3, the cutting debris falling in the cutting process can be pushed into the collecting port, and a collecting box is arranged below the collecting port, so that the cutting debris can be conveniently collected.

[0043] Specifically, the clamping block 7122 is inserted into the inside of the clamping groove 713 through the elastic force of the first elastic member 7123, so as to limit the support arm 712 and make the support arm 712 keep horizontal, when the die casting is placed on the column 711, the die casting is supported by the support arm 712 to prevent it from falling; when the die casting is in block shape, the die casting is tightly fixed by the second cylinder 507 and the column 711 when the die casting is conveyed to the cutting assembly 4, at this time, the U-shaped frame 504 is driven to descend by the second cylinder 507 and the cross slide 502, so that the pressing block 75 is inserted into the clamping groove 713, the clamping block 7122 is taken out of the clamping groove 713, and the support arm 712 is rotated downward under the influence of its own gravity, so as to avoid the influence of the support arm 712 on the descent of the cutting assembly 4, so that the cutting assembly 4 can cut and polish the lower side area of the die casting; when the die casting is a shell with the bottom upwardly concave, the clamping blocks 7122 on the left and right sides are pressed downward by the pressing block 75, so that the support arms 712 on the left and right sides of the die casting rotate downward, while the support arms 712 on the front and back sides of the die casting keep horizontal to support the shell, so as to avoid the die casting from falling, and when the die casting is cut on the front and back sides, the die casting can be clamped and driven to rotate 90° by the cutting assembly 4, so that the cutting assembly 4 always cuts and processes on the left and right sides of the die casting, so as to support and process the die casting in block shape and shell shape.

[0044] In another embodiment, please refer to the accompanying drawings Figure 10 - the accompanying drawings Figure 11 The inside of the column 711 is provided with a mounting cavity, the mounting cavity is slidably provided with an extrusion head 716, the surface of the column 711 is provided with a plurality of through grooves, the extrusion head 716 is made of ferromagnetic material, a plurality of support protrusions 715 penetrating through the through grooves are fixedly connected with the side wall of the extrusion head 716, and the second elastic member 717 is fixedly arranged between the extrusion head 716 and the mounting cavity.

[0045] Specifically, when the block-shaped die casting is placed on the column 711, the pressing head 716 is pressed downward by the gravity of the die casting, so that the downward movement of the pressing head 716 does not push the reset member to slide outward, and after the finished die casting is taken out, the pressing head 716 slides upward by the elastic force of the second elastic member 717, so that the supporting protrusion 715 pushes the supporting arm 712 to rotate upward to be kept horizontal, so that the clamping block 7122 is automatically inserted into the clamping groove 713 again, so that the supporting arm 712 is restored, thereby supporting the subsequent placed die casting for machining.

[0046] In another embodiment, please refer to the accompanying Figure 11 When the die casting is placed on the column 711, the pressing head 716 cannot be pressed downward, so that the pressing head 716 affects the downward rotation of the supporting arm 712, and the following solutions are proposed to solve the above problems. The upper surface of the lower surface of the machining table 3 is provided with an annular groove, and the magnetic ring 74 is fixedly arranged in the groove. The pressing head 716 is made of ferromagnetic material, and the magnetic ring 74 is located at the cutting assembly 4.

[0047] When the die casting is conveyed to the lower side of the cutting assembly 4 for cutting, the pressing head 716 is rotated to the upper side of the magnetic ring 74, and the magnetic attraction force between the magnetic ring 74 and the pressing head 716 makes the pressing head 716 descend, thereby avoiding the downward rotation of the supporting arm 712 when supporting the shell die casting, and improving the application range of the device.

[0048] The working principle is that the die casting is placed on the supporting frame 71, the machining table 3 is rotated by the first motor 2, the die casting is rotated to the lower side of the cutting assembly 4 for automatic cutting, and the automatic machining of the metal die casting is realized.

[0049] The position of the cutting assembly 4 is adjusted by the driving mechanism 5, so that the cutting edge of the straight face cutting knife 402 is located at the side edge of the die casting. Then, the straight face cutting knife 402 is lowered to cut the flash of the side edge of the die casting, and the straight face polishing plate 406 is used to polish the side edge of the die casting, thereby improving the cleaning effect of the flash of the die casting. By adjusting the positions of the curved face cutting knife 403 and the curved face polishing plate 407 at the chamfered side edge of the die casting, the chamfered side edge of the die casting can be cut and polished when the curved face cutting knife 403 and the curved face polishing plate 407 are lowered, thereby the flash of the side edge of the die casting can be cleaned comprehensively.

[0050] When the block-shaped die casting is placed on the column 711, the pressing head 716 is pressed down by the gravity of the die casting, so that the pressing head 716 does not push the reset member to slide outward. After the finished die casting is taken out, the pressing head 716 slides upward by the elastic force of the second elastic member 717, so that the supporting protrusion 715 pushes the supporting arm 712 to rotate upward to be kept horizontal, so that the clamping block 7122 is inserted into the clamping groove 713 again, so that the supporting arm 712 is restored, thereby supporting the subsequent placed die casting to be machined.

[0051] Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can make modifications to the technical solutions recorded in the foregoing embodiments, or make equivalent replacements to part of the technical features, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An apparatus for automatically cutting a metal die casting, characterized by comprising: The utility model provides a cutting device for die casting, including workbench (1), cutting assembly (4) and drive mechanism (5) for driving the cutting assembly (4) moves to carry out cutting, workbench (1) is provided with processing platform (3) on, the processing platform (3) surface is seted up with a plurality of processing port (6), the processing port (6) is installed with support assembly (7) in, for supporting die casting, cutting assembly (4) includes mounting plate (401), the side wall of mounting plate (401) is fixedly set with straight face cutting knife (402) and straight face polishing plate (406), the both sides of mounting plate (401) are slidably provided with the connecting piece (405) of U shape, the downside of connecting piece (405) is provided with arc face cutting knife (403), and the upside is provided with arc face polishing plate (407), drive mechanism (5) is connected with cutting assembly (4).

2. The apparatus according to claim 1, wherein The symmetry axis of the arc face cutting knife (403) and the cutting edge of the straight face cutting knife (402) form a 45° angle, and the symmetry axis of the arc face polishing plate (407) and the polishing surface of the straight face polishing plate (406) form a 45° angle.

3. The apparatus according to claim 1, wherein The arc face cutting knife (403) is composed of a plurality of cutting knives arranged in layers and gradually changing in inner diameter, and the arc face polishing plate (407) is composed of a plurality of polishing plates arranged in layers and gradually changing in inner diameter. The outer side walls of the cutting knives and the polishing plates are respectively fixedly connected with horizontally arranged elastic expansion rods (408), and the other ends of the elastic expansion rods (408) are fixedly connected with the connecting piece (405).

4. The apparatus according to claim 1, wherein The connecting piece (405) includes a U-shaped connecting body (4051), and first electric push cylinders (4052) are fixedly arranged on the upper and lower sides of the connecting body (4051). The driving ends of the first electric push cylinders (4052) are fixedly connected with semicircular mounting racks (4053) for mounting the arc face cutting knife (403) and the arc face polishing plate (407). Fan-shaped fixed walls (4054) are fixedly arranged on the outer sides of the connecting piece (405).

5. The apparatus according to claim 1, wherein An adjusting module (409) is fixedly arranged on the side wall of the mounting plate (401). The adjusting module (409) is an electric sliding table or an electric push cylinder, which is used to drive the connecting piece (405) to move in the same direction or in the opposite direction.

6. The apparatus according to claim 1, wherein The drive mechanism (5) includes a bracket (8) fixedly arranged at the top end of the workbench (1), a second motor (501), a rotating plate (506), a cross sliding table (502), a first air cylinder (503), and a U-shaped rack (504). The second motor (501) drives the rotating plate (506) to rotate. The cross sliding table (502) drives the cutting assembly (4) to move. The first air cylinder (503) and the U-shaped rack (504) realize clamping and positioning of the die casting.

7. The apparatus according to claim 1, wherein The support assembly (7) comprises a support frame (71) arranged in the machining opening (6), which comprises a stand (711) and four groups of elastically expandable support arms (712) rotatably arranged outside the stand (711), wherein each support arm (712) comprises an arm body (7121), a clamping block (7122) slidably arranged in a sliding groove, and a first elastic member (7123).

8. The apparatus according to claim 7, wherein The stand (711) is internally provided with a mounting cavity, and an extrusion head (716) is slidably arranged in the mounting cavity, wherein the extrusion head (716) is made of ferromagnetic material, a support protrusion (715) is fixedly connected to the sidewall of the extrusion head (716), and a second elastic member (717) is arranged between the extrusion head (716) and the mounting cavity.

9. The apparatus according to claim 1, wherein The lower surface of the machining table (3) is provided with an annular groove, and a magnetic ring (74) is fixedly arranged in the groove, wherein the magnetic ring (74) cooperates with the ferromagnetic extrusion head (716) in the support assembly (7) to assist the downward pressing action of the support arm (712) through magnetic attraction force during machining.

10. The apparatus according to claim 7, wherein The device further comprises a scraper (72) fixedly connected to the bottom end of the stand (711) of the support frame (71) and movable with the rotation of the machining table (3), which is used to collect the cutting debris generated during cutting and automatically clean the debris through the collecting port at the lower part of the workbench (1), thereby improving the machining efficiency.

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