An automated device and method for removing risers from cast blanks.

Abstract

This invention provides an automated device and method for removing risers from cast blanks. The device includes a base, on which a carrier plate for suspending the cast blank is slidably mounted. A support is fixedly connected above the base, and a liftable turntable is mounted at the bottom of the support. Multiple flame-cutting heads are mounted on the circumferential sidewalls of the turntable to cut off multiple risers on the top of the cast blank. Multiple mounting grooves, spaced apart from the flame-cutting heads, are provided on the top circumference of the turntable. A swingable rotating plate is mounted within each mounting groove. A rotating shaft is rotatably connected to the sidewall of the rotating plate, and a grinding rod is fixedly connected to the end of the rotating shaft through a mounting groove. Multiple pushing mechanisms are mounted on the top of the turntable to push out the cut risers. This device can automatically remove multiple risers around a large cast blank simultaneously, and automatically grinds the cut surfaces after removal.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of casting processing, in particular to an automatic cutting device and method for the riser of a casting blank. BACKGROUND

[0002] After the casting blank is completed, the riser needs to be cut off, and for some large castings, such as large disc seats or bearing seats, the number of risers on the top is more than one, and the most economical and efficient method for cutting off the riser is to use flame cutting.

[0003] At present, most of the cutting of the riser of the large casting blank is carried out by hand-held flame cutting gun or simple support guide device for automatic cutting, but only one riser can be cut off, and for multiple risers in a circle, automatic and rapid cutting cannot be completed, and due to the uneven surface of the flame cutting, manual polishing is required, which is relatively inconvenient. SUMMARY

[0004] In view of the above problems, the present application provides an automatic cutting device for the riser of a casting blank, which can simultaneously and automatically cut off multiple risers in a circle of a large casting blank, and can automatically polish the cutting surface after cutting.

[0005] To solve the above problems, the technical scheme adopted by the present application is:

[0006] An automatic cutting device for the riser of a casting blank, comprising a base, a load plate for hoisting a casting blank is slidably installed on the base, a support is fixedly connected to the top of the base, a liftable turntable is installed at the bottom of the support, a plurality of flame cutting heads for cutting off multiple risers on the top of the casting blank are installed on the circumferential side wall of the turntable, a plurality of installation grooves are arranged on the top circumference of the turntable and spaced apart from the plurality of flame cutting heads, a swingable rotating plate is installed in the installation groove, a rotating shaft is rotatably connected to the side wall of the rotating plate, a polishing rod is fixedly connected to the end of the rotating shaft which extends out of the installation groove, and a plurality of pushing mechanisms for pushing out the cut risers are installed on the top of the turntable.

[0007] Preferably, a first hydraulic cylinder is installed at one end of the base, and the telescopic end of the first hydraulic cylinder is fixedly connected with the load plate.

[0008] Preferably, a second hydraulic cylinder is installed at the top of the support, a connecting plate is fixedly connected to the telescopic end of the second hydraulic cylinder, and a driving assembly for driving the rotation of the turntable is installed on the connecting plate.

[0009] Preferably, the driving assembly comprises a first motor mounted at the bottom of the connecting plate, a connecting shaft vertically arranged is rotatably connected to the connecting plate, and the connecting shaft and the output shaft of the first motor are connected through a pair of first gear transmissions.

[0010] Preferably, the middle part of the rotating disc is provided with a mounting cavity, a transmission assembly capable of simultaneously driving a plurality of rotating shafts to rotate is mounted in the mounting cavity, and a swing assembly capable of driving the polishing rod to swing is mounted in the mounting groove.

[0011] Preferably, the transmission assembly comprises a second motor mounted in the mounting cavity, a first bevel gear is fixedly connected to the output shaft of the second motor, a plurality of transmission shafts extending into the corresponding mounting grooves are rotatably connected to the inner wall of the mounting cavity, a second bevel gear meshing with the first bevel gear is fixedly connected to the inner side end of the transmission shaft, a second gear is fixedly connected to the extension end of the transmission shaft, and a third gear meshing with the second gear is fixedly connected to the rotating shaft.

[0012] Preferably, the swing assembly comprises a first air cylinder rotatably connected in the mounting groove, the telescopic end of the first air cylinder is rotatably connected to the top of the rotating plate, and the bottom of the rotating plate is rotatably connected in the mounting groove.

[0013] Preferably, the pushing mechanism comprises a second air cylinder radially mounted at the top of the rotating disc, and the telescopic end of the second air cylinder is fixedly connected with a push plate.

[0014] Preferably, the side wall of the rotating disc is fixedly provided with an annular air pipe, a plurality of air blowing heads are arranged on the circumferential side wall of the annular air pipe, and the annular air pipe is externally connected with an air pump through a connecting pipe.

[0015] The application also discloses an automatic cutting method for a casting blank riser.

[0016] S1, hoist the cast blank formed by pouring to the object plate, start the first hydraulic cylinder, pull the cast blank to the bottom of the rotating disc, start the second hydraulic cylinder to drive the rotating disc to descend, and make the plurality of flame cutting heads one by one align with the roots of the plurality of risers;

[0017] S2, start the first motor, drive the connecting shaft to rotate through the pair of first gear transmissions, drive the rotating disc to rotate, and then make the flame cutting head pass through the entire riser, and simultaneously complete the cutting of the plurality of risers in one circle;

[0018] S3, after the riser is cut off, start the plurality of second air cylinders to drive the push plate to move, and then push the cut-off riser away from the casting;

[0019] S4, after cutting and pushing, according to the specific quantity of the riser, the first cylinder corresponding to the position is started to push the rotating plate to rotate, and then the polishing rod is rotated to the horizontal direction, at this time the second gear and the third gear are rotated to the meshing state, the second motor is started, a plurality of transmission shafts are driven to rotate through the first bevel gear and a plurality of second bevel gears, and then the rotating shaft and the polishing rod are driven to rotate through the second gear and the third gear, and the polishing rod is driven to move circumferentially through the rotating disc, and the polishing process of multiple cutting surfaces is completed at the same time.

[0020] S5, while cutting, the air pump is started, high-pressure gas enters the annular air pipe through the connecting pipe, and then blows away the polishing debris from the surface of the cast blank through a plurality of air blowing heads, and the cleaning process is completed.

[0021] The beneficial effects of the present application are:

[0022] 1. By installing the lifting rotating disc, a plurality of flame cutting heads are installed on the circumferential side wall of the rotating disc, the cast blank is placed on the object plate by hoisting, the first hydraulic cylinder is used to pull it to the lower side of the rotating disc, the second hydraulic cylinder is started to drive the rotating disc to descend, a plurality of flame cutting heads are aligned with the roots of a plurality of risers one by one, the rotating disc is driven to rotate through the driving assembly, and then the flame cutting head passes through the entire riser, and the cutting of a plurality of risers in a circle is completed.

[0023] 2. By installing the pushing mechanism, the cut-off riser is moved by starting a plurality of second cylinders to drive the push plate, and the cut-off riser is pushed away from the casting.

[0024] 3. By installing the polishing rod, the swing assembly and the transmission assembly, after cutting and pushing, according to the specific quantity of the riser, the first cylinder corresponding to the position is started to push the rotating plate to rotate, and then the polishing rod is rotated to the horizontal direction, at this time the second gear and the third gear are rotated to the meshing state, the second motor is started, a plurality of transmission shafts are driven to rotate through the first bevel gear and a plurality of second bevel gears, and then the rotating shaft and the polishing rod are driven to rotate through the second gear and the third gear, and the polishing rod is driven to move circumferentially through the rotating disc, and the polishing process of multiple cutting surfaces is completed at the same time.

[0025] 4. By installing the annular air pipe and a plurality of air blowing heads, while cutting, the air pump can be started, high-pressure gas is blown to the surface of the cast blank through a plurality of air blowing heads, and the polishing debris is blown away, and the cleaning process is completed. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The structure of the present application is shown in the figure;

[0027] Figure 2 The rotating disc of the present application is shown in the figure;

[0028] Figure 3 isFigure 2 Structure enlarged schematic view of the structure at A in FIG.

[0029] Figure 4 Structure schematic view of the swing assembly proposed by the present application;

[0030] Figure 5 Structure schematic view of the transmission assembly proposed by the present application;

[0031] Figure 6 Structure schematic view of the driving mechanism proposed by the present application.

[0032] In the figure: 1 base, 2 object plate, 3 support, 4 first hydraulic cylinder, 5 cast blank, 51 riser, 6 second hydraulic cylinder, 7 polishing rod, 8 turntable, 9 connecting shaft, 10 second air cylinder, 11 push plate, 12 flame cutting head, 13 mounting groove, 14 first air cylinder, 15 rotating plate, 16 rotating shaft, 17 third gear, 18 second gear, 19 transmission shaft, 20 mounting cavity, 21 first bevel gear, 22 second motor, 23 second bevel gear, 24 annular air pipe, 25 air blowing head, 26 first gear, 27 first motor, 28 connecting plate. DETAILED DESCRIPTION

[0033] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below in combination with the drawings. In the following description, a lot of specific details are set forth in order to fully understand the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application, so the present application is not limited by the specific implementation disclosed below.

[0034] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or there can be an intervening element. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation.

[0035] Referring to Figures 1-6 An automatic cutting device for the riser of a cast blank, comprising a base 1, a object plate 2 for hoisting the cast blank 5 is slidably installed on the base 1, a first hydraulic cylinder 4 is installed at one end of the base 1, and the telescopic end of the first hydraulic cylinder 4 is fixedly connected with the object plate 2. The cast blank formed by pouring is hoisted to the object plate 2, and the first hydraulic cylinder 4 is started to be pulled to the lower side of the turntable 8.

[0036] The upper part of the base 1 is also fixedly connected with a support 3, the bottom of the support 3 is provided with a liftable rotating disc 8, the top of the support 3 is provided with a second hydraulic cylinder 6, the telescopic end of the second hydraulic cylinder 6 is fixedly connected with a connecting plate 28, the connecting plate 28 is provided with a driving assembly capable of driving the rotating disc 8 to rotate, the driving assembly comprises a first motor 27 installed at the bottom of the connecting plate 28, the connecting plate 28 is rotatably connected with a vertically arranged connecting shaft 9, the connecting shaft 9 is in transmission connection with the output shaft of the first motor 27 through a pair of first gears 26, a plurality of flame cutting heads 12 capable of cutting off a plurality of risers 51 at the top of the cast blank 5 are installed on the circumferential side wall of the rotating disc 8, the plurality of flame cutting heads 12 are aligned with the roots of the plurality of risers 51, the first motor 27 is started, the connecting shaft 9 is driven to rotate through the pair of first gears 26, so that the rotating disc 8 is driven to rotate, and then the flame cutting heads 12 pass through the entire riser 51, and the cutting of the plurality of risers 51 is completed at one time.

[0037] A plurality of installation grooves 13 spaced from the plurality of flame cutting heads 12 are arranged circumferentially on the top of the rotating disc 8, a rotatable rotating plate 15 is installed in the installation groove 13, a rotating shaft 16 is rotatably connected with the side wall of the rotating plate 15, the distal end of the rotating shaft 16 extends out of the installation groove 13 and is fixedly connected with a polishing rod 7, a mounting cavity 20 is arranged in the middle of the rotating disc 8, a transmission assembly capable of simultaneously driving a plurality of rotating shafts 16 to rotate is installed in the mounting cavity 20, a swing assembly capable of driving the polishing rod 7 to swing is installed in the installation groove 13, the first cylinder 14 at the corresponding position is started to drive the rotating plate 15 to rotate according to the specific number of risers, and then the polishing rod 7 is rotated to the horizontal direction.

[0038] The transmission assembly comprises a second motor 22 installed in the mounting cavity 20, a first bevel gear 21 is fixedly connected with the output shaft of the second motor 22, a plurality of transmission shafts 19 extending into the corresponding installation groove 13 are rotatably connected with the inner wall of the mounting cavity 20, a second bevel gear 23 meshing with the first bevel gear 21 is fixedly connected with the inner side end of the transmission shaft 19, a second gear 18 is fixedly connected with the extension end of the transmission shaft 19, a third gear 17 meshing with the second gear 18 is fixedly connected with the rotating shaft 16, the swing assembly comprises a first cylinder 14 rotatably connected in the installation groove 13, the telescopic end of the first cylinder 14 is rotatably connected with the top of the rotating plate 15, the bottom of the rotating plate 15 is rotatably connected in the installation groove 13, the polishing rod rotates while moving circumferentially, and the polishing process of a plurality of cutting surfaces is completed at one time.

[0039] A plurality of pushing mechanisms capable of pushing the cut risers 51 out are installed on the top of the rotating disc 8, the pushing mechanism comprises a second cylinder 10 radially installed on the top of the rotating disc 8, the telescopic end of the second cylinder 10 is fixedly connected with a push plate 11, a plurality of second cylinders 10 are started to drive the push plate 11 to move, so that the cut risers 51 can be pushed away from the castings.

[0040] In addition, the side wall of the rotating disc 8 is fixedly provided with an annular air pipe 24, the circumferential side wall of the annular air pipe 24 is provided with a plurality of air blowing heads 25, the annular air pipe 24 is externally connected with an air pump through a connecting pipe, the air pump is started, high-pressure gas enters the annular air pipe 24 through the connecting pipe, and then is blown to the surface of the cast blank through the plurality of air blowing heads 25, so that the polishing debris is blown away, and the cleaning process is completed.

[0041] The application further discloses an automatic cutting method for the riser of a cast blank.

[0042] S1, hoist the cast blank formed by pouring to the loading plate 2, start the first hydraulic cylinder 4, pull the cast blank to the lower side of the rotating disc 8, start the second hydraulic cylinder 6 to drive the rotating disc 8 to descend, and make the plurality of flame cutting heads 12 one by one align with the roots of the plurality of risers 51;

[0043] S2, start the first motor 27, drive the connecting shaft 9 to rotate through a pair of first gears 26, that is, drive the rotating disc 8 to rotate, and then make the flame cutting head 12 pass through the entire riser 51, and complete the cutting of the plurality of risers 51 in one circle;

[0044] S3, after the riser 51 is cut off, start the plurality of second air cylinders 10 to drive the push plate 11 to move, so that the cut-off riser 51 can be pushed away from the cast blank;

[0045] S4, after the cutting and pushing are completed, according to the specific number of the risers, start the first air cylinder 14 at the corresponding position to drive the rotating plate 15 to rotate, and then rotate the polishing rod 7 to the horizontal direction, at this time, the second gear 18 and the third gear 17 are rotated to the meshing state, start the second motor 22, drive the plurality of transmission shafts 19 to rotate through the first bevel gear 21 and the plurality of second bevel gears 23, and then drive the rotating shaft 16 and the polishing rod 7 to rotate through the second gear 18 and the third gear 17, and at the same time, drive the polishing rod 7 to move circumferentially through the rotating disc 8, and complete the polishing process of the plurality of cutting surfaces at the same time;

[0046] S5, at the same time of cutting, start the air pump, high-pressure gas enters the annular air pipe 24 through the connecting pipe, and then is blown to the surface of the cast blank through the plurality of air blowing heads 25, so that the polishing debris is blown away, and the cleaning process is completed.

[0047] The cast blank is hoisted onto the carrier plate 2. The first hydraulic cylinder 4 is activated to pull it below the turntable 8. The second hydraulic cylinder 6 is activated to drive the turntable 8 to descend, so that multiple flame cutting heads 12 are aligned with the roots of multiple risers 51. The first motor 27 is activated, which drives the connecting shaft 9 to rotate through a pair of first gears 26, thereby driving the turntable 8 to rotate. This allows the flame cutting heads 12 to pass through the entire riser 51, completing the cutting of multiple risers 51 in one circle. After the risers 51 are cut off, multiple second cylinders 10 are activated to drive the push plate 11 to move, thus pushing the cut risers 51 away from the casting.

[0048] After cutting and feeding are completed, the first cylinder 14 at the corresponding position can be activated to push the rotating plate 15 to rotate, according to the specific number of risers, thereby rotating the grinding rod 7 to a horizontal position. Figure 4 As shown, the second gear 18 and the third gear 17 are engaged, activating the second motor 22. This motor, via the first bevel gear 21 and multiple second bevel gears 23, simultaneously drives multiple drive shafts 19 to rotate. The second and third gears 18 then drive the rotating shaft 16 and the grinding rod 7 to rotate, while the turntable 8 moves the grinding rod 7 circumferentially, completing the grinding process on multiple cut surfaces. Simultaneously, an air pump is activated, and high-pressure gas enters the annular air pipe 24 through a connecting pipe. This gas is then blown onto the surface of the casting blank through multiple air nozzles 25, removing grinding debris and completing the cleaning process.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automated cutting-off device of a casting blank sprue, comprising a base (1), characterized in that, The base (1) is slidably installed with a carrier plate (2) for hanging casting blank (5), the upper part of the base (1) is further fixedly connected with a support (3), the bottom of the support (3) is installed with a liftable turntable (8), the circumferential side wall of the turntable (8) is installed with a plurality of flame cutting heads (12) which can cut off a plurality of risers (51) on the top of the casting blank (5), a plurality of installation grooves (13) are circumferentially arranged on the top of the turntable (8), a plurality of rotatable rotating plates (15) are installed in the installation grooves (13), rotating shafts (16) are rotatably connected to the side walls of the rotating plates (15), the ends of the rotating shafts (16) extend out of the installation grooves (13) and are fixedly connected with polishing rods (7), a plurality of pushing mechanisms which can push out the cut risers (51) are installed on the top of the turntable (8), an annular air pipe (24) is fixedly installed on the side wall of the turntable (8), a plurality of air blowing heads (25) are arranged on the circumferential side wall of the annular air pipe (24), and the annular air pipe (24) is connected with an air pump through a connecting pipe; A mounting cavity (20) is arranged in the middle of the turntable (8), a transmission assembly which can simultaneously drive a plurality of rotating shafts (16) to rotate is installed in the mounting cavity (20), and a swing assembly which can drive the polishing rod (7) to swing is installed in the installation groove (13); The transmission assembly comprises a second motor (22) installed in the mounting cavity (20), a first bevel gear (21) is fixedly connected to the output shaft of the second motor (22), a plurality of transmission shafts (19) are rotatably connected to the inner wall of the mounting cavity (20) and extend into the corresponding installation grooves (13), second bevel gears (23) are fixedly connected to the inner side ends of the transmission shafts (19) and mesh with the first bevel gear (21), second gears (18) are fixedly connected to the extension ends of the transmission shafts (19), and third gears (17) are fixedly connected to the rotating shafts (16) and mesh with the second gears (18); The swing assembly comprises a first air cylinder (14) rotatably connected in the installation groove (13), the extension end of the first air cylinder (14) is rotatably connected to the top of the rotating plate (15), and the bottom of the rotating plate (15) is rotatably connected in the installation groove (13).

2. An apparatus for automated removal of a sprue from a cast blank according to claim 1, wherein A first hydraulic cylinder (4) is installed at one end of the base (1), and the extension end of the first hydraulic cylinder (4) is fixedly connected with the carrier plate (2).

3. An apparatus for automated removal of a sprue from a cast blank according to claim 1, wherein A second hydraulic cylinder (6) is installed on the top of the support (3), the extension end of the second hydraulic cylinder (6) is fixedly connected with a connecting plate (28), and a driving assembly which can drive the turntable (8) to rotate is installed on the connecting plate (28).

4. An apparatus for automated removal of a sprue from a cast blank according to claim 3, wherein The driving assembly comprises a first motor (27) installed at the bottom of the connecting plate (28), a connecting shaft (9) is rotatably connected to the connecting plate (28) and arranged vertically, and the connecting shaft (9) and the output shaft of the first motor (27) are drivingly connected through a pair of first gears (26).

5. An apparatus for automated removal of a sprue from a cast blank according to claim 1, wherein The pushing mechanism comprises a second air cylinder (10) radially mounted on the top of the rotating disc (8), and the telescopic end of the second air cylinder (10) is fixedly connected with a push plate (11).

6. A method of cutting off a sprue based on the automated cutting-off device of a cast blank according to any one of claims 1 to 5, characterized in that, The method comprises the following specific steps: S1, hoist the cast blank formed by pouring to the load plate (2), start the first hydraulic cylinder (4), pull the cast blank to the bottom of the rotating disc (8), start the second hydraulic cylinder (6) to drive the rotating disc (8) to descend, and make the plurality of flame cutting heads (12) one by one align with the roots of the plurality of risers (51); S2, start the first motor (27), rotate the connecting shaft (9) through a pair of first gears (26), which can drive the rotating disc (8) to rotate, and then make the flame cutting head (12) pass through the entire riser (51), and complete the cutting of the plurality of risers (51) in one circle; S3, after cutting off the riser (51), start the plurality of second air cylinders (10) to drive the push plate (11) to move, which can push the cut-off riser (51) away from the casting; S4, after cutting and pushing, according to the specific number of risers, start the first air cylinder (14) at the corresponding position to push the rotating plate (15) to rotate, and then rotate the polishing rod (7) to the horizontal direction, at this time, the second gear (18) and the third gear (17) are in meshing state, start the second motor (22), rotate the plurality of transmission shafts (19) through the first bevel gear (21) and the plurality of second bevel gears (23), and then rotate the rotating shaft (16) and the polishing rod (7) through the second gear (18) and the third gear (17), and at the same time, the polishing rod (7) is moved circumferentially through the rotating disc (8), and the polishing process of the plurality of cutting surfaces is completed; S5, at the same time of cutting, start the air pump, high-pressure gas enters the annular air pipe (24) through the connecting pipe, and then blows to the surface of the cast blank through the plurality of air blowing heads (25), blows away the polishing debris, and completes the cleaning process.

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