A device for cutting off the scraps at the corners of metal castings

Abstract

The present invention discloses a device for cutting off the corner scraps of metal castings, which relates to the technical field of cutting off the corner scraps of metal castings and aims to solve the technical problem that the cutting efficiency of the device for cutting off the corner scraps of metal castings for high-strength multi-cavity metal castings is low. The device includes a cutting machine body, a lifting mechanism, a cutting mechanism and a clamping and positioning mechanism; the cutting mechanism includes a mounting seat, the mounting seat is fixedly arranged at the movable end of the lifting mechanism, a variable diameter component is arranged on the mounting seat, and cutting components are arranged on the variable diameter component in an annular and equally spaced structure. Through the structural design of the cutting mechanism, the present invention enables several cutting parts to simultaneously cut the surplus materials at the gating parts around the metal casting, without the need for manual control of the rotation of the metal casting, improving the cutting efficiency of the gating of the metal casting. And through the structural design of the variable diameter component, the rotation adjustment ring enables several vertical plates to simultaneously drive several cutting parts to perform centripetal position adjustment, which is applicable to the gating cutting of various metal castings.

Description

Technical Field

[0001] The present invention relates to the technical field of cutting off scraps from metal castings, and more specifically, to a device for cutting off scraps from metal castings. Background Art

[0002] A metal casting refers to a process product obtained by pouring molten metal into a mold cavity through a casting process and waiting for it to cool and solidify to obtain a casting with a certain shape and performance. Specifically, the casting process of metal castings is as follows: Make a corresponding mold according to the shape and size of the required casting, then put the metal material into a furnace to heat and melt it, pour the melted molten metal into the mold cavity (ensure that the molten metal fills all parts of the cavity), and then cool and solidify to form a solid metal casting with the same shape as the cavity. Finally, take out the casting and clean it to remove sand grains, burrs and flash on the surface of the casting.

[0003] The structural design of the mold cavity of metal castings is closely related to the types, sizes of casting products and the requirements of production efficiency. In order to improve the casting efficiency of metal castings, a multi-metal casting process is usually adopted. A common method is to design a multi-cavity mold, such as the design of a "one mold with multiple cavities" mold cavity. Specifically, multiple cavities are arranged in the same mold according to a certain rule (such as linear arrangement, radial arrangement or grid arrangement), and the main runner branches are connected to multiple cavities, and multiple castings are poured at one time through the shared runner system, improving the casting efficiency and reducing the time cost of single pouring. However, since the cavity is connected to the main runner, when the molten metal fills the cavity through the main runner, cross runner and ingate, the metal in the runner system will solidify at the same time as the casting. Since the cross-sectional area of the runner is large and the heat dissipation is slow, the last solidified metal will remain in the runner, forming gates and risers, resulting in an overall shape as shown in Figure 13 or Figure 14 For some small castings, in particular, in order to save waste materials, an injection molding method as shown in Figure 14 is adopted. The casting has multiple layers from the outside to the inside. Therefore, in order to obtain a metal casting, a cutting device is needed to cut off the residual metal at the connection between the gate and the casting.

[0004] In the prior art, a pouring head separator is usually used to cut "one mold, multiple cavities" type metal castings. However, when using the traditional pouring head separator, the worker needs to control the cutting mechanism with one hand to cut, and control the rotation of the metal casting with the other hand, and then cut one by one. Manual operation is time-consuming and labor-intensive, and the pouring head cutting efficiency is low. Therefore, people have designed a metal casting pouring head cutting device that can cut multiple castings at the same time. For example, the patent with the authorization announcement number CN118404040B discloses a metal casting and forging pouring head cutting device. As a special cutting device, it is provided with two groups of cutting machines for synchronous cutting of two pouring heads, which can be cut in batches, and the two cutting machines in each group cut the same pouring head, which greatly shortens the cutting time of a single pouring head; in addition, the clamping assembly installed on the cutting machine can keep the pouring head clamped during the cutting process, thereby improving the stability of the cutting process. However, the cutting device can actually only cut multiple metal castings located on the same axis at the same time, and cannot cut multiple metal castings from multiple angles at the same time. In order to cut from multiple angles at the same time, multiple sets of cutting machines need to be set up. For high-strength small-sized one-mold multi-cavity metal castings, due to their high cutting force requirements, small drive motors are prone to insufficient power, while large multiple drive motors will cause the device to become larger in size, complex to control, and have high requirements on the control system, which is costly. Therefore, the existing high-strength small-sized one-mold multi-cavity metal castings mostly use single-axis cutting equipment, and the cutting efficiency is low. Therefore, it is necessary to design a device with an integrated transmission structure that can efficiently cut high-strength one-mold multi-cavity metal castings. In view of this, we propose a cutting device for cutting the pouring riser of "one-mold multi-cavity" type metal castings. Summary of the invention

[0005] The object of the present invention is to provide a device for cutting off scraps of metal castings, so as to solve the technical problem that the device for cutting off scraps of metal castings has low cutting efficiency for high-strength single-mold multi-cavity metal castings.

[0006] To solve the above technical problems, the present invention provides the following technical solution: A device for cutting the corner materials of metal castings, including a cutting body. An elevating mechanism is arranged in the cutting cavity of the cutting body. A cutting mechanism for the gate of the metal casting is arranged at the movable end of the elevating mechanism, and a clamping and positioning mechanism is arranged below the cutting mechanism. The cutting mechanism includes a mounting seat, a variable-diameter assembly, a plurality of cutting assemblies, and a rotating assembly. The mounting seat is fixedly arranged at the movable end of the elevating mechanism, and a through cavity is arranged on the mounting seat. The variable-diameter assembly includes a fixed ring, which is arranged on the through cavity. A plurality of vertical plates are arranged at equal intervals in a circular shape below the fixed ring. An adjusting ring is rotatably connected to the fixed ring. The rotating assembly includes an external gear ring B, which is rotatably arranged on the outer edge surface of the adjusting ring. An internal tooth groove is opened on the inner edge surface of the external gear ring B. The cutting assembly includes a cutting part, and a plurality of the cutting parts are respectively arranged at the bottom ends of a plurality of the vertical plates. The input ends of a plurality of the cutting parts and the internal tooth groove are all connected through a variable-diameter transmission part. A plurality of the vertical plates can move centripetally or eccentrically simultaneously, so that the size of the cutting cavity formed by a plurality of the cutting assemblies can be changed. Through the structural design of the cutting mechanism of the present invention, a plurality of cutting parts can cut the surplus materials at the four-week gate parts of the metal casting simultaneously, without manual control of the rotation of the metal casting, improving the cutting efficiency of the gate of the metal casting. And through the structural design of the variable-diameter assembly, the rotating adjusting ring can enable a plurality of vertical plates to drive a plurality of cutting parts to perform centripetal position adjustment simultaneously, which is applicable to the gate cutting of various metal castings. And through the large-power drive of the rotating assembly for a plurality of small cutting assemblies, while ensuring the cutting force, the overall volume of the device is relatively small.

[0007] Preferably, an installation cavity is opened at the top end of the mounting seat, a circular through groove is opened at the bottom end of the installation cavity, and the through cavity is formed by connecting the installation cavity and the circular through groove.

[0008] Preferably, a plurality of centripetal sliding grooves are opened at equal intervals in a circular shape at the top end of the fixed ring. A slider is slidably connected to the centripetal sliding groove. A centripetal rod is fixedly arranged at the centripetal end of the slider. The centripetal ends of a plurality of the centripetal rods respectively pass through a plurality of the centripetal sliding grooves and extend into the fixed ring and are respectively fixedly connected to the top ends of a plurality of the vertical plates. The fixed ring is fixedly arranged on the circular through groove. A plurality of arc cavities are arranged at positions corresponding to a plurality of the centripetal sliding grooves on the fixed ring. A clamping tooth groove in an arc shape is communicated and arranged at the top end of the arc cavity.

[0009] Preferably, a plurality of inclined guide grooves are formed at the bottom end of the adjusting ring corresponding to the positions of the plurality of centripetal sliding grooves. An inclined rod is slidably connected to the inclined guide groove. The centripetal end of the inclined rod is rotatably connected to the centripetal end of the centripetal rod through a movable column. A plurality of gear grooves equal in number to the plurality of inclined guide grooves are formed on the adjusting ring in an annular equidistant structure. A circular groove is provided on one side of the gear groove. The circular groove is communicated with the gear groove through a clamping chute A. A clamping chute B is formed at the bottom end of the circular groove. A rotating ring A is fixedly provided at the bottom end of the adjusting ring. The rotating ring A is rotatably connected to the top end of the fixed ring.

[0010] Preferably, the fixed ring and the adjusting ring are connected by a clamping component. The clamping component includes an elliptical block and a clamping tooth block A. The elliptical block is arranged in the circular groove. The elliptical block is rotatably connected to the circular groove through a connecting shaft. The top end of the connecting shaft passes through the circular groove and extends outside the adjusting ring and is fixedly provided with an adjusting gear. The bottom end of the connecting shaft penetrates into the clamping chute B and is fixedly provided with a plurality of spherical blocks B in an annular equidistant structure. A clamping tooth block B is sleeved at the bottom end of the connecting shaft. The clamping tooth block B is slidably connected to the clamping chute B. The clamping tooth block B is clamped and connected to the clamping tooth groove. A plurality of threaded grooves are formed in the inner cavity of the clamping tooth block B corresponding to the positions of the plurality of spherical blocks B. The threaded grooves are movably connected to the spherical blocks B. Among them, the rotation angle of the threaded groove is 90°. An elliptical guide groove is formed on the surface of the elliptical block. The clamping tooth block A is slidably arranged on the clamping chute A. The clamping tooth block A is movably connected to the elliptical guide groove through a spherical block A.

[0011] Preferably, a plurality of the adjusting gears are meshed and connected through an adjusting component. The adjusting component includes a rotating ring B. The rotating ring B is rotatably arranged at the top end of the adjusting ring. A spiral ring is fixedly provided at the top end of the rotating ring B. An external tooth ring A is fixedly provided on the spiral ring. A plurality of the adjusting gears are all meshed and connected to the external tooth ring A. A worm is meshed and connected to the spiral ring. Adjusting rods are fixedly provided at both ends of the worm. The adjusting rods are rotatably connected to the top end of the adjusting ring through a rotating seat. One of the adjusting rods extends out of the rotating seat at the end far from the worm and is provided with an adjusting thread groove.

[0012] Preferably, the cutting part includes an installation unit and a linkage shaft A. The installation unit is rotatably arranged at the bottom end of the centripetal side of the vertical plate. A cutting blade is installed on the installation unit. The linkage shaft A is rotatably arranged at the bottom end of the eccentric side of the vertical plate. And the linkage shaft A is fixedly connected to the installation unit. A bevel gear A is fixedly provided on the linkage shaft A.

[0013] Preferably, the transmission part includes a bevel gear B, which is meshed and connected with the bevel gear A. A linkage shaft B is fixedly provided on the bevel gear B. The top end of the linkage shaft B is rotatably connected to the bottom end of the centripetal rod. A swivel A rotatably connected to the linkage shaft B is provided above the bevel gear B. A first sprocket A fixedly connected to the linkage shaft B is provided above the swivel A. A distance rod A is rotatably connected to the swivel A. A swivel C is rotatably provided at one end of the distance rod A away from the swivel A. A distance rod B arranged staggered with the distance rod A is rotatably connected to the swivel C. A linkage shaft C is rotatably provided inside the swivel C. Two ends of the linkage shaft C are respectively fixed with A second sprocket A and a first sprocket B are provided, and the second sprocket A and the first sprocket A are connected by chain A. A swivel X is rotatably provided at one end of the distance rod B away from the swivel C. The top end of the swivel X passes through the arc cavity and is rotatably connected to the bottom end of the adjusting ring. A linkage shaft X is rotatably connected inside the swivel X. The bottom end of the linkage shaft X passes through the bottom end of the swivel X and is fixedly provided with a second sprocket B. The second sprocket B and the first sprocket B are connected by chain B. The top end of the linkage shaft X passes through the gear groove and is fixedly provided with a transmission gear A. The transmission gear A is meshed with the internal tooth groove, and the transmission gear A is engaged with the engaging tooth block A.

[0014] Preferably, the rotating assembly also includes a transmission gear B and a fixed seat, the transmission gear B is meshed and connected with the outer gear ring B, the transmission gear B is rotatably connected to the bottom end of the mounting cavity through a gear shaft, the fixed seat is fixed on the mounting seat, a motor is fixed on the fixed seat, and the motor output shaft is fixedly connected to the gear shaft.

[0015] Preferably, the lifting mechanism is a screw lifting structure, and the clamping and positioning mechanism is a three-jaw chuck structure.

[0016] The beneficial effects of the present invention are:

[0017] 1. The present invention, through the structural design of the cutting mechanism, enables a plurality of cutting parts to simultaneously cut the excess material at the gate parts around the metal casting, without the need to manually control the rotation of the metal casting, thereby improving the cutting efficiency of the metal casting gate. In addition, through the structural design of the variable diameter assembly, the rotating adjustment ring can enable a plurality of vertical plates to simultaneously drive a plurality of cutting parts to adjust their positions in the centripetal direction, which is suitable for gate cutting of various metal castings. The large power of the rotating assembly drives a plurality of small cutting assemblies, thereby ensuring the cutting force while keeping the overall volume of the device small.

[0018] 2. Through the structural design of the clamping component in the present invention, when the rotary adjustment gear is rotated, the coupling drives the elliptical block to rotate, the ball block B moves relative to the threaded groove, so that the clamping tooth block B slides on the clamping chute B, controlling the clamping and detachment of the clamping tooth block B and the clamping tooth groove. When the clamping tooth block B is clamped with the clamping tooth groove, the adjustment ring cannot rotate. At the same time, the rotation of the elliptical block causes the relative movement between the elliptical guide groove and the ball block A, so that the clamping tooth block A slides relative to the clamping chute A, which is convenient for adjustment, time-saving and labor-saving, thus further solving the technical problem of low gate cutting efficiency of the current metal casting scrap cutting device.

[0019] 3. Through the structural design of the adjustment gear in the present invention, when the adjustment screw groove is rotated by a tool, the adjustment rod drives the worm to rotate, so that the worm ring drives the external tooth ring A to rotate, and several adjustment gears rotate simultaneously, thus adjusting several clamping components at the same time. And this structure has a self-locking ability, and there is no need for additional fixation after the clamping component is adjusted, which is convenient for adjustment, time-saving and labor-saving, thus further solving the technical problem of low gate cutting efficiency of the current metal casting scrap cutting device.

[0020] 4. Through the structural design of the rotating component, cutting component, variable diameter component, clamping component and adjustment component in the present invention, when the adjustment screw groove is rotated by a tool and the clamping tooth block B is clamped with the clamping tooth groove, the clamping tooth block A slides relative to the clamping chute A and disengages from the transmission gear A, and the adjustment ring cannot rotate. At this time, by rotating the output shaft of the external control motor, several cutting blades can be driven to rotate for simultaneously cutting the surplus materials at the gate parts around the metal casting. When the adjustment screw groove is rotated by a tool and the clamping tooth block B is disengaged from the clamping tooth groove, the clamping tooth block A slides relative to the clamping chute A and is clamped with the transmission gear A. At this time, by rotating the output shaft of the external control motor, since the transmission gear A cannot rotate relative to the adjustment ring, a relatively fixed structure is formed, so the external tooth ring B drives the adjustment ring to rotate through the transmission gear A, for controlling and adjusting the positions of several cutting parts according to the type and size of the metal casting. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the overall structural schematic diagram of the present invention;

[0022] Figure 2 is the split structural schematic diagram of the lifting mechanism, cutting mechanism and clamping and positioning mechanism of the present invention;

[0023] Figure 3 is the structural schematic diagram of the cutting mechanism of the present invention;

[0024] Figure 4 is the split structural schematic diagram of the cutting mechanism of the present invention;

[0025] Figure 5 is the partial structural split schematic of the cutting mechanism of the present inventionFigure 1 ;

[0026] Figure 6 Partial structural split diagram of the cutting mechanism of the present invention Figure 2 ;

[0027] Figure 7 Split structural diagram of the fixed ring and the adjusting ring of the present invention;

[0028] Figure 8 Structural diagram of the clamping component and the adjusting component of the present invention;

[0029] Figure 9 Split structural diagram of the clamping component of the present invention;

[0030] Figure 10 Structural diagram of the cutting component and the rotating component of the present invention;

[0031] Figure 11 Structural diagram of the cutting component of the present invention;

[0032] Figure 12 Split structural diagram of the transmission part of the present invention;

[0033] Figure 13 Overall schematic diagram of a metal casting to be cut;

[0034] Figure 14 Overall schematic diagram of another metal casting to be cut.

[0035] Explanation of the reference numerals in the figure:

[0036] 1. Cutting body; 2. Lifting mechanism; 3. Cutting mechanism; 4. Mounting seat; 5. Reducing diameter component; 6. Cutting component; 7. Rotating component; 8. Clamping component; 9. Adjusting component; 10. Clamping and positioning mechanism;

[0037] 41. Mounting cavity; 42. Circular groove;

[0038] 51. Fixed ring; 52. Centripetal chute; 53. Slide block; 54. Centripetal rod; 55. Vertical plate; 56. Adjusting ring; 57. Inclined guide groove; 58. Inclined rod; 59. Movable column;

[0039] 511. Arc cavity; 512. Clamping tooth groove;

[0040] 561. Gear groove; 562. Circular groove; 563. Clamping chute B; 564. Rotating ring A; 565. Clamping chute A;

[0041] 61. Cutting part; 62. Transmission part;

[0042] 611. Installation unit; 612. Cutting blade; 613. Linking shaft A; 614. Bevel gear A;

[0043] 621. Bevel gear B; 622. Linking shaft B; 623. Swivel ring A; 624. First sprocket A; 625. Spacing rod A; 626. Swivel ring C; 627. Spacing rod B; 628. Linking shaft C; 629. Second sprocket A; 630. Chain A; 631. Swivel ring X; 632. Second sprocket B; 633. Chain B; 634. Transmission gear A; 635. Linking shaft X; 636. First sprocket B;

[0044] 71. Outer gear ring B; 72. Inner tooth groove; 73. Transmission gear B; 74. Gear shaft; 75. Fixed seat; 76. Motor;

[0045] 81. Oval block; 82. Coupling shaft; 83. Adjusting gear; 84. Ball block B; 85. Clamping tooth block B; 86. Thread groove; 87. Oval guide groove; 88. Clamping tooth block A; 89. Ball block A;

[0046] 91. Rotating ring B; 92. Scroll ring; 93. Worm; 94. Adjusting rod; 95. Rotating seat; 96. Adjusting screw groove; 97. Outer gear ring A. Detailed implementation mode

[0047] As Figures 1 to 12 shown, a device for cutting the corner scraps of metal castings according to the present invention includes a cutting machine body 1, a lifting mechanism 2, a cutting mechanism 3, and a clamping and positioning mechanism 10;

[0048] The lifting mechanism 2 is arranged in the cutting cavity of the cutting machine body 1. The lifting mechanism 2 is a prior art of screw lifting structure and will not be elaborated here;

[0049] The cutting mechanism 3 includes a mounting seat 4, a diameter-changing assembly 5, and a rotating assembly 7;

[0050] The mounting seat 4 is fixedly arranged at the movable end of the lifting mechanism 2. An installation cavity 41 is opened at the top end of the mounting seat 4, and a circular through groove 42 is opened at the bottom end of the installation cavity 41. The installation cavity 41 and the circular through groove 42 are communicated to form a through cavity;

[0051] The variable-diameter component 5 includes a fixed ring 51, which is fixed on the circular through groove 42. The top end of the fixed ring 51 is provided with a number of centripetal sliding grooves 52 in an annular equidistant structure. A slider 53 is slidably connected to the centripetal sliding groove 52. A centripetal rod 54 is fixed to the centripetal end of the slider 53. The centripetal end of the centripetal rod 54 passes through the slider 53 and extends into the fixed ring 51 and is fixed with a vertical plate 55. An adjusting ring 56 is rotatably connected to the fixed ring 51. The bottom end of the adjusting ring 56 is provided with a number of inclined guide grooves 57 corresponding to the positions of the number of centripetal sliding grooves 52. An inclined rod 58 is slidably connected to the inclined guide groove 57. The centripetal end of the inclined rod 58 is rotatably connected to the centripetal end of the centripetal rod 54 through a movable column 59. Through the above arrangement of the present invention, when the adjusting ring 56 rotates, the rotation intersection position of the centripetal end of the inclined rod 58 and the centripetal end of the centripetal rod 54 changes, so that the movable column 59 drives the centripetal rod 54 and the vertical plate 55 to slide along the centripetal sliding groove 52 with the slider 53, so that a number of cutting parts 61 change simultaneously, and the inclined rod 58 slides on the inclined guide groove 57.

[0052] A number of arc cavities 511 are provided at the positions of the fixed ring 51 corresponding to the number of centripetal sliding grooves 52. The top end of the arc cavity 511 is communicated with a clamping tooth groove 512 having an arc structure.

[0053] The adjusting ring 56 is provided with a number of gear grooves 561 equal to the number of the inclined guide grooves 57 in an annular equidistant structure. A circular groove 562 is provided on one side of the gear groove 561. The circular groove 562 is communicated with the gear groove 561 through a clamping sliding groove A565. A clamping sliding groove B563 is provided at the bottom end of the circular groove 562. The bottom end of the adjusting ring 56 is fixed with a rotating ring A564, and the rotating ring A564 is rotatably connected to the top end of the fixed ring 51.

[0054] The fixed ring 51 and the adjusting ring 56 are connected by a clamping component 8. The clamping component 8 includes an elliptical block 81 and a clamping tooth block A88. The elliptical block 81 is arranged in the circular groove 562. The elliptical block 81 and the circular groove 562 are rotationally connected through a connecting shaft 82. The top end of the connecting shaft 82 passes through the circular groove 562 and extends outside the adjusting ring 56 and is fixedly provided with an adjusting gear 83. The bottom end of the connecting shaft 82 penetrates into the clamping chute B563 and is fixedly provided with a plurality of spherical blocks B84 in an annular equidistant structure. A clamping tooth block B85 is sleeved on the bottom end of the connecting shaft 82. The clamping tooth block B85 is slidably connected with the clamping chute B563. The clamping tooth block B85 is clamped and connected with the clamping tooth groove 512. A plurality of threaded grooves 86 are opened on the inner cavity of the clamping tooth block B85 at positions corresponding to the plurality of spherical blocks B84. The threaded grooves 86 are movably connected with the spherical blocks B84. Among them, the rotation angle of the threaded groove 86 is 90°. An elliptical guide groove 87 is opened on the surface of the elliptical block 81. The clamping tooth block A88 is slidably arranged on the clamping chute A565. The clamping tooth block A88 is movably connected with the elliptical guide groove 87 through a spherical block A89. Through the structural design of the clamping component 8 in the present invention, when the adjusting gear 83 is rotated, the connecting shaft 82 drives the elliptical block 81 to rotate, and the spherical block B84 moves relative to the threaded groove 86, so that the clamping tooth block B85 slides on the clamping chute B563 to control the clamping and separation of the clamping tooth block B85 and the clamping tooth groove 512. When the clamping tooth block B85 is clamped with the clamping tooth groove 512, the adjusting ring 56 cannot rotate. At the same time, the rotation of the elliptical block 81 makes the elliptical guide groove 87 and the spherical block A89 move relative to each other, so that the clamping tooth block A88 slides relative to the clamping chute A565.

[0055] A plurality of adjusting gears 83 are meshed and connected through an adjusting component 9. The adjusting component 9 includes a rotating ring B91. The rotating ring B91 is rotatably arranged at the top end of the adjusting ring 56. A spiral ring 92 is fixedly arranged at the top end of the rotating ring B91. An external tooth ring A97 is fixedly arranged on the spiral ring 92. A plurality of adjusting gears 83 are all meshed and connected with the external tooth ring A97. A worm 93 is meshed and connected with the spiral ring 92. Adjusting rods 94 are fixedly arranged at both ends of the worm 93. The adjusting rods 94 and the top end of the adjusting ring 56 are rotationally connected through a rotating seat 95. One end of an adjusting rod 94 far from the worm 93 passes through the rotating seat 95 and is provided with an adjusting thread groove 96. Through the structural design of the adjusting gear 83 in the present invention, when the adjusting thread groove 96 is rotated by a tool, the adjusting rod 94 drives the worm 93 to rotate, so that the spiral ring 92 drives the external tooth ring A97 to rotate, so that a plurality of adjusting gears 83 rotate simultaneously, thereby adjusting a plurality of clamping components 8 simultaneously. And this structure has a self-locking ability. After the clamping component 8 is adjusted, no additional fixation is required, and the adjustment is convenient, time-saving and labor-saving, thereby further solving the technical problem of low gate cutting efficiency of the current metal casting scrap cutting device.

[0056] The cutting component 6 includes a cutting part 61 and a transmission part 62.

[0057] The cutting part 61 includes a mounting unit 611 and a linkage shaft A613. The mounting unit 611 is rotatably arranged at the bottom end of the centripetal side of the vertical plate 55. A cutting blade 612 is mounted on the mounting unit 611. The linkage shaft A613 is rotatably arranged at the bottom end of the eccentric side of the vertical plate 55, and the linkage shaft A613 is fixedly connected to the mounting unit 611. A bevel gear A614 is fixedly arranged on the linkage shaft A613. The mounting unit 611 of the present invention is the prior art for mounting the cutting blade 612, and will not be elaborated here. Through the above settings, the present invention enables the rotation of the bevel gear A614 to drive the rotation of the linkage shaft A613, the mounting unit 611, and the cutting blade 612.

[0058] The transmission part 62 includes a bevel gear B621, which is meshed and connected with the bevel gear A614. A linkage shaft B622 is fixedly provided on the bevel gear B621. The top of the linkage shaft B622 is rotatably connected to the bottom end of the centripetal rod 54. A swivel A623 rotatably connected to the linkage shaft B622 is provided above the bevel gear B621. A first sprocket A624 fixedly connected to the linkage shaft B622 is provided above the swivel A623. A distance rod A625 is rotatably connected to the swivel A623. A swivel C626 is rotatably provided at one end of the distance rod A625 away from the swivel A623. A distance rod B627 arranged alternately with the distance rod A625 is rotatably connected to the swivel C626. A linkage shaft C628 is rotatably provided in the swivel C626. The linkage shaft C62 The second sprocket A629 and the first sprocket B636 are fixed at both ends respectively, and the second sprocket A629 is connected to the first sprocket A624 through a chain A630. A swivel X631 is rotatably provided at one end of the distance rod B627 away from the swivel C626. The top end of the swivel X631 passes through the arc cavity 511 and is rotatably connected to the bottom end of the adjusting ring 56. A linkage shaft X635 is rotatably connected in the swivel X631. The bottom end of the linkage shaft X635 passes through the bottom end of the swivel X631 and is fixed with a second sprocket B632. The second sprocket B632 is connected to the first sprocket B636 through a chain B633. The top end of the linkage shaft X635 passes through the gear groove 561 and is fixed with a transmission gear A634. The transmission gear A634 is engaged with the engaging tooth block A88. Through the above-mentioned arrangement, the present invention enables the transmission gear A634 to rotate and drive the linkage shaft X635 and the second sprocket B632 to rotate, so that the chain B633 drives the first sprocket B636, the linkage shaft C628 and the second sprocket A629 to rotate, so that the chain A630 drives the first sprocket A624, the linkage shaft B622 and the bevel gear B621 to rotate, thereby causing the bevel gear A614 to rotate, and when the reducing assembly 5 changes diameter, the positions of the cutting portion 61 and the linkage shaft B622 are changed at the same time, so that the distance rod A625 and the distance rod B627 rotate relative to the rotating ring C626, and the two transmission structures are not affected, and when the transmission gear A634 is engaged with the engaging tooth block A88, the transmission gear A634 cannot rotate relative to the adjusting ring 56, forming a relatively fixed structure. The transmission portion 62 of the present invention can also use other transmission methods, which are not elaborated here.

[0059] The rotating assembly 7 includes an outer tooth ring B71, a transmission gear B73, and a fixed seat 75. The outer tooth ring B71 is rotatably arranged on the outer edge surface of the adjusting ring 56. An inner tooth groove 72 is formed on the inner edge surface of the outer tooth ring B71 at a position corresponding to the transmission gear A634. The transmission gear A634 is meshed and connected with the inner tooth groove 72. The transmission gear B73 is meshed and connected with the outer tooth ring B71. The transmission gear B73 is rotatably connected to the bottom end of the installation cavity 41 through a gear shaft 74. The fixed seat 75 is fixedly arranged on the installation seat 4. A motor 76 is fixedly arranged on the fixed seat 75. The output shaft of the motor 76 is fixedly connected with the gear shaft 74. Through the structural design of the rotating assembly 7 in the present invention, by controlling the rotation of the output shaft of the motor 76 through an external control mechanism, the gear shaft 74 drives the transmission gear B73 to rotate, so that the outer tooth ring B71 rotates relative to the adjusting ring 56, and the inner tooth groove 72 drives a plurality of transmission gears A634 to rotate. The structure is compact, the device has a small volume, and a single motor 76 drives a plurality of cutting assemblies 6 to ensure that the cutting force of the cutting assemblies 6 is sufficient.

[0060] A clamping and positioning mechanism 10 is arranged below the cutting mechanism 3. The clamping and positioning mechanism 10 is a three-jaw chuck structure. The clamping and positioning mechanism 10 is used to clamp a multi-cavity metal casting as shown in Figure 13 . The clamping and positioning mechanism 10 is a prior art of a three-jaw chuck structure and will not be elaborated here.

[0061] Working principle: This embodiment provides a device for removing the corner materials of metal castings. During use, first, adjust the positions of a plurality of cutting parts 61 according to the size of the cutting cavity formed by the cutting positions of a plurality of metal castings on the same plane, so as to change the size of the cutting cavity formed by a plurality of cutting assemblies 6; rotate and adjust the screw groove 96 through a tool to disengage the clamping tooth block B85 from the clamping tooth groove 512. The clamping tooth block A88 slides relative to the clamping chute A565 and is clamped with the transmission gear A634. At this time, rotate the output shaft of the external control motor 76. Since the transmission gear A634 cannot rotate relative to the adjusting ring 56, a relatively fixed structure is formed. Therefore, the outer tooth ring B71 drives the adjusting ring 56 to rotate through the transmission gear A634;

[0062] The rotation intersection position of the centripetal end of the inclined rod 58 and the centripetal end of the centripetal rod 54 changes to an appropriate position, so that the movable column 59 drives the centripetal rod 54 and the vertical plate 55 to slide along the centripetal chute 52 with the slider 53, so that a plurality of cutting parts 61 change simultaneously. The inclined rod 58 slides on the inclined guide groove 57. At this time, the fixed-distance rod A625 and the fixed-distance rod B627 rotate relative to the rotating ring C626, and both transmission structures are not affected;

[0063] Place the remaining material main shaft of the metal casting on the clamping and positioning mechanism 10 for clamping and positioning, and pay attention to aligning the gate position with the position of the cutting blade 612;

[0064] The output shaft of the motor 76 is rotated through external control, causing the relative adjustment ring 56 to rotate. The rotation of the internal tooth groove 72 drives the rotation of a number of transmission gears A634. The rotation of the transmission gears A634 can drive the rotation of the linkage shaft X635 and the second sprocket B632, causing the chain B633 to drive the first sprocket B636, the linkage shaft C628 and the second sprocket A629 to rotate, and causing the chain A630 to drive the first sprocket A624, the linkage shaft B622 and the bevel gear B621 to rotate, thereby causing the bevel gear A614 to rotate, and the linkage shaft A613, the mounting unit 611 and the cutting blade 612 to rotate. The movable end of the lifting mechanism 2 is lowered through the external control mechanism to drive the entire cutting mechanism 3 to descend, and the surplus materials at the surrounding gate parts of the metal casting are cut simultaneously until the cutting is completed;

[0065] If cutting is to be performed on a metal casting as Figure 14 shown, the metal casting can be cut from the outside to the inside with reference to the above steps until the cutting of the innermost metal casting is completed.

[0066] The embodiments disclosed in the present invention are preferred embodiments, but are not limited thereto. Those of ordinary skill in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not depart from the spirit of the present invention, they are within the protection scope of the present invention.

Claims

1. A device for cutting off the corner scraps of metal castings, characterized in that, It includes a cutting body (1), a lifting mechanism (2) is arranged in the cutting cavity of the cutting body (1), a cutting mechanism (3) for the gate of a metal casting is arranged at the movable end of the lifting mechanism (2), and a clamping and positioning mechanism (10) is arranged below the cutting mechanism (3); The cutting mechanism (3) includes a mounting seat (4), a diameter-changing component (5), a plurality of cutting components (6) and a rotating component (7); The mounting seat (4) is fixedly arranged at the movable end of the lifting mechanism (2), and a through cavity is arranged on the mounting seat (4); The diameter-changing component (5) includes a fixed ring (51), the fixed ring (51) is arranged on the through cavity, a plurality of centripetal sliding grooves (52) are arranged at the top of the fixed ring (51) in an annular and equally spaced structure, a slider (53) is slidably connected to the centripetal sliding groove (52), a centripetal rod (54) is fixedly arranged at the centripetal end of the slider (53), a plurality of vertical plates (55) are arranged at the bottom of the fixed ring (51) in an annular and equally spaced structure, the centripetal ends of the plurality of centripetal rods (54) respectively pass through the plurality of centripetal sliding grooves (52) and extend into the fixed ring (51) and are respectively fixedly connected to the tops of the plurality of vertical plates (55), an adjusting ring (56) is rotatably connected to the fixed ring (51), a plurality of arc cavities (511) are arranged on the fixed ring (51) at positions corresponding to the plurality of centripetal sliding grooves (52), and a clamping tooth groove (512) in an arc structure is communicated with the top of the arc cavity (511); A plurality of inclined guide grooves (57) are arranged at the bottom of the adjusting ring (56) at positions corresponding to the plurality of centripetal sliding grooves (52), an inclined rod (58) is slidably connected to the inclined guide groove (57), the centripetal end of the inclined rod (58) is rotatably connected to the centripetal end of the centripetal rod (54) through a movable column (59), a plurality of gear grooves (561) equal in number to the plurality of inclined guide grooves (57) are arranged on the adjusting ring (56) in an annular and equally spaced structure, a circular groove (562) is arranged on one side of the gear groove (561), the circular groove (562) is communicated with the gear groove (561) through a clamping sliding groove A (565), a clamping sliding groove B (563) is arranged at the bottom of the circular groove (562), and a rotating ring A (564) is fixedly arranged at the bottom of the adjusting ring (56), and the rotating ring A (564) is rotatably connected to the top of the fixed ring (51); The fixed ring (51) and the adjusting ring (56) are connected by a clamping component (8). The clamping component (8) includes an elliptical block (81) and a clamping tooth block A (88). The elliptical block (81) is arranged in the circular groove (562). The elliptical block (81) and the circular groove (562) are rotationally connected by a connecting shaft (82). The top end of the connecting shaft (82) penetrates out of the circular groove (562) and extends outside the adjusting ring (56) and is fixedly provided with an adjusting gear (83). The bottom end of the connecting shaft (82) penetrates into the clamping sliding groove B (563) and is fixedly provided with a plurality of ball blocks B (84) in an annular equidistant structure. A clamping tooth block B (85) is sleeved on the bottom end of the connecting shaft (82). The clamping tooth block B (85) is slidably connected with the clamping sliding groove B (563). The clamping tooth block B (85) is clamped and connected with the clamping tooth groove (512). A plurality of threaded grooves (86) are formed in the inner cavity of the clamping tooth block B (85) at positions corresponding to the plurality of ball blocks B (84). The threaded grooves (86) are movably connected with the ball blocks B (84). Wherein, the rotation angle of the threaded groove (86) is 90°. An elliptical guide groove (87) is formed on the surface of the elliptical block (81). The clamping tooth block A (88) is slidably arranged on the clamping sliding groove A (565). The clamping tooth block A (88) is movably connected with the elliptical guide groove (87) through a ball block A (89); The rotating component (7) includes an external tooth ring B (71). The external tooth ring B (71) is rotatably arranged on the outer edge surface of the adjusting ring (56). An internal tooth groove (72) is formed on the inner edge surface of the external tooth ring B (71); The cutting component (6) includes a cutting part (61). A plurality of the cutting parts (61) are respectively arranged at the bottom ends of the plurality of vertical plates (55). The input ends of the plurality of cutting parts (61) and the internal tooth groove (72) are all connected by a variable-diameter transmission part (62); The cutting part (61) includes a linkage shaft A (613). A bevel gear A (614) is fixedly arranged on the linkage shaft A (613); The transmission part (62) includes a bevel gear B (621), the bevel gear B (621) is meshed and connected with the bevel gear A (614), a linkage shaft B (622) is fixedly arranged on the bevel gear B (621), the top end of the linkage shaft B (622) is rotationally connected with the bottom end of the centripetal rod (54), above the bevel gear B (621), there is a rotating ring A (623) rotationally connected with the linkage shaft B (622), above the rotating ring A (623), there is a first sprocket A (624) fixedly connected with the linkage shaft B (622), a fixed-distance rod A (625) is rotationally connected to the rotating ring A (623), at one end of the fixed-distance rod A (625) away from the rotating ring A (623), a rotating ring C (626) is rotatably arranged, a fixed-distance rod B (627) arranged in a staggered manner with the fixed-distance rod A (625) is rotationally connected to the rotating ring C (626), a linkage shaft C (628) is rotatably arranged in the rotating ring C (626), at both ends of the linkage shaft C (628), a second sprocket A (629) and a first sprocket B (636) are respectively fixedly arranged, the second sprocket A (629) is in transmission connection with the first sprocket A (624) through a chain A (630), at one end of the fixed-distance rod B (627) away from the rotating ring C (626), a rotating ring X (631) is rotatably arranged, the top end of the rotating ring X (631) penetrates out of the arc cavity (511) and is rotationally connected with the bottom end of the adjusting ring (56), a linkage shaft X (635) is rotationally connected in the rotating ring X (631), the bottom end of the linkage shaft X (635) penetrates out of the bottom end of the rotating ring X (631) and is fixedly provided with a second sprocket B (632), the second sprocket B (632) is in transmission connection with the first sprocket B (636) through a chain B (633), the top end of the linkage shaft X (635) penetrates into the gear slot (561) and is fixedly provided with a transmission gear A (634), the transmission gear A (634) is meshed and connected with the internal tooth slot (72), and the transmission gear A (634) is in clamping fit with the clamping tooth block A (88); A plurality of the vertical plates (55) can move centripetally or eccentrically simultaneously, so that the size of the cutting cavity formed by a plurality of the cutting assemblies (6) can be changed.

2. The device for cutting off the corner scraps of a metal casting according to claim 1, characterized in that, The top end of the mounting seat (4) is provided with a mounting cavity (41), the bottom end of the mounting cavity (41) is provided with a round through slot (42), and the through cavity is formed by communicating the mounting cavity (41) and the round through slot (42).

3. The device for cutting off the corner scraps of the metal casting according to claim 2, characterized in that, The fixed ring (51) is fixedly arranged on the round through slot (42).

4. The device for cutting off the corner waste of metal castings according to claim 3, characterized in that, It further includes an adjusting component (9), and the adjusting component (9) includes a rotating ring B (91). The rotating ring B (91) is rotatably arranged at the top end of the adjusting ring (56). A spiral ring (92) is fixedly arranged at the top end of the rotating ring B (91). An external tooth ring A (97) is fixedly arranged on the spiral ring (92). A plurality of the adjusting gears (83) are all meshed and connected with the external tooth ring A (97). A worm (93) is meshed with the spiral ring (92). Adjusting rods (94) are fixedly arranged at both ends of the worm (93). The adjusting rods (94) and the top end of the adjusting ring (56) are rotatably connected through a rotating seat (95). One end of one of the adjusting rods (94) far away from the worm (93) penetrates through the rotating seat (95) and is provided with an adjusting screw groove (96).

5. The device for cutting off the corner scraps of metal castings according to claim 4, characterized in that, The cutting part (61) further includes a mounting unit (611). The mounting unit (611) is rotatably arranged at the bottom end of the centripetal side of the vertical plate (55). A cutting blade (612) is mounted on the mounting unit (611). A linkage shaft A (613) is rotatably arranged at the bottom end of the eccentric side of the vertical plate (55), and the linkage shaft A (613) is fixedly connected with the mounting unit (611).

6. The device for cutting off the corner scraps of metal castings according to claim 5, characterized in that, The rotating component (7) further includes a transmission gear B (73) and a fixed seat (75). The transmission gear B (73) is meshed and connected with the external tooth ring B (71). The transmission gear B (73) and the bottom end of the mounting cavity (41) are rotatably connected through a gear shaft (74). The fixed seat (75) is fixedly arranged on the mounting seat (4). A motor (76) is fixedly arranged on the fixed seat (75). The output shaft of the motor (76) is fixedly connected with the gear shaft (74).

7. The device for cutting off the corner scraps of the metal casting according to claim 6, wherein, The lifting mechanism (2) is a screw rod lifting structure, and the clamping and positioning mechanism (10) is a three-jaw chuck structure.

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