Iron type sand coated casting shape correcting device

Abstract

The application relates to the technical field of iron-type sand-coating, in particular to an iron-type sand-coating casting shape correcting device, which comprises a correcting table, a mounting through hole is arranged in the center position of the correcting table, a fixed supporting plate is fixedly arranged at the lower side of one end of the correcting table, a threaded hole is arranged in the fixed supporting plate, a casting convenient fixing mechanism is installed on the correcting table, a mounting through hole is arranged in the correcting table, a fixed adsorption cylinder is fixedly installed in the mounting through hole, a piston plate is inserted into the fixed adsorption cylinder, when the casting is corrected, the smooth flat bottom surface of the casting is covered on the upper side of the mounting through hole, then the threaded driving rod is rotated, the inclined plane push frame can be driven to move under the action of the threads, the auxiliary sealing ring can be pushed upwards and moved under the action of the inclined plane push frame, the smooth flat bottom surface of the casting is contacted with the sealing air cushion, and the sealing property is further ensured.

Description

Technical Field

[0001] This invention relates to the field of iron mold sand coating technology, specifically to a device for correcting the shape of iron mold sand-coated castings. Background Technology

[0002] Sand coating in iron molds is a commonly used casting process in the foundry industry. After molding, burrs will appear on the surface, requiring workers to clean and trim them using tools to ensure production quality. When trimming the shape, the casting needs to be fixed to ensure it remains stable throughout the process. This not only ensures smooth trimming but also guarantees the quality of the trimming. If the casting moves during the trimming process, errors may occur, causing damage to the casting, and in severe cases, scrapping the casting and resulting in economic losses. Currently, for castings with smooth, flat bottoms, special clamps are still manufactured based on their shape for fixation. This method is costly and cumbersome to operate, hindering rapid casting fixation and affecting the efficiency of casting trimming. Summary of the Invention

[0003] The purpose of this invention is to provide a device for correcting the shape of iron mold sand-coated castings, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A device for straightening the shape of sand-coated iron castings includes a straightening table with a through hole at its center. A fixed support plate is fixedly mounted on the lower side of one end of the straightening table, and a threaded hole is provided on the fixed support plate. A convenient casting fixing mechanism is mounted on the straightening table. The convenient casting fixing mechanism includes a fixed suction cylinder, an auxiliary sealing ring, a first spring, a piston plate, a second spring, a movable insert rod, a movable connecting rod, an inclined push frame, a bearing, and a threaded drive rod. The fixed suction cylinder is inserted into and welded into the through hole. An upper convex ring is fixedly mounted on the upper end of the fixed suction cylinder, and the upper end face of the upper convex ring is flush with the upper end face of the straightening table. A mating insertion hole is provided at the center of the lower end of the fixed suction cylinder, and the mating insertion hole communicates with the interior of the fixed suction cylinder. Two insertion holes are symmetrically provided on the fixed suction cylinder on both sides of the mating insertion hole, and the insertion holes penetrate to the upper end face of the fixed suction cylinder.

[0006] Preferably, the auxiliary sealing ring is sleeved on the upper convex ring, and a sealing gas pad is provided on the upper end surface of the auxiliary sealing ring. Insertion rods are symmetrically fixed on both sides of the lower end of the auxiliary sealing ring. The insertion rods are inserted into the insertion holes, and a first spring is sleeved on the insertion rods. The first spring is located on the lower side of the fixed adsorption cylinder.

[0007] Preferably, the lower end of the plug rod is fixedly provided with a mounting bracket, a rotating wheel is installed on the mounting bracket, the piston plate is inserted into the fixed adsorption cylinder, and the upper end face of the piston plate is flush with the upper end face of the upper convex ring when the piston plate is not in operation.

[0008] Preferably, a hollow fitting rod is fixedly provided at the lower end of the piston plate. The hollow fitting rod is inserted into the fitting hole, and a circular base is fixedly provided at the lower end of the hollow fitting rod. A second spring is sleeved on the hollow fitting rod, and the second spring is located on the lower side of the fixed adsorption cylinder.

[0009] Preferably, an L-shaped plate is fixedly provided on one side of the circular chassis, a limit rod is fixedly provided at the lower end of the L-shaped plate, a movable insert rod is inserted into the hollow fitting rod, and a connecting frame is welded to the lower end of the movable insert rod.

[0010] Preferably, a movable connecting rod is hinged to the connecting frame, and the other end of the movable connecting rod is movably connected to the inclined push frame.

[0011] Preferably, the inclined pusher has a bearing hole, a bearing is installed in the bearing hole, the bearing is fitted with a threaded drive rod, the threaded drive rod is threaded into the threaded hole, and a mating frame is fixedly provided on the lower side of the inclined pusher, and a movable connecting rod is hinged on the mating frame.

[0012] Compared with the prior art, the beneficial effects of the present invention are: the present invention has a reasonable structural design and strong functionality, and has the following advantages:

[0013] 1. An installation through hole is provided on the straightening table. A fixed suction cylinder is fixedly installed in the installation through hole, and a piston plate is inserted into the fixed suction cylinder. When straightening the casting, its smooth flat bottom surface is covered on the upper side of the installation through hole. Then, rotating the threaded drive rod will drive the inclined pusher to move under the action of the thread. In turn, under the action of the inclined pusher, the auxiliary sealing ring can be pushed upward, so that the sealing gasket contacts the smooth flat bottom surface of the casting, further ensuring the sealing performance.

[0014] 2. As the threaded drive rod rotates, the piston plate moves downward under the action of the movable connecting rod. Under the premise of ensuring sealing, a negative pressure can be formed in the fixed adsorption cylinder, which can tightly adsorb and fix the casting on the straightening table, thereby achieving the fixation of the casting and facilitating the normal operation of the straightening work. The operation is very simple and convenient, and the casting can be fixed quickly. The structure is simple, the cost is low, and it is very practical. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the assembly of the correction table.

[0016] Figure 2 A schematic diagram showing the fit and connection of the mechanism for conveniently fixing castings.

[0017] Figure 3 An exploded view of the assembly at the fixed adsorption cylinder.

[0018] In the diagram: 1. Correction table; 11. Mounting through hole; 12. Fixed support plate; 13. Threaded hole; 2. Fixed suction cylinder; 21. Upper convex ring; 22. Mating insertion hole; 23. Insertion hole; 3. Auxiliary sealing ring; 31. Sealing air cushion; 32. Insertion rod; 33. First spring; 34. Mounting bracket; 35. Rotary wheel; 4. Piston plate; 41. Hollow mating rod; 42. Circular base; 43. Second spring; 44. L-shaped plate; 45. Limiting rod; 5. Movable insertion rod; 51. Connecting bracket; 6. Movable connecting rod; 7. Inclined push bracket; 71. Bearing hole; 72. Mating bracket; 8. Bearing; 9. Threaded drive rod. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Please see Figures 1 to 3 The present invention provides a technical solution:

[0021] A device for straightening the shape of sand-coated iron castings includes a straightening table 1. A through hole 11 is provided at the center of the straightening table 1, and a fixed support plate 12 is fixedly mounted on the lower side of one end of the straightening table 1. A threaded hole 13 is provided on the fixed support plate 1. A convenient casting fixing mechanism is installed on the straightening table 1. The convenient casting fixing mechanism includes a fixed suction cylinder 2, an auxiliary sealing ring 3, a first spring 33, a piston plate 4, a second spring 43, a movable insert rod 5, a movable connecting rod 6, an inclined pusher 7, a bearing 8, and a threaded drive. Rod 9 and fixed adsorption cylinder 2 are inserted into and welded into the mounting through hole 11. The upper end of the fixed adsorption cylinder 2 is fixedly provided with an upper convex ring 21, the upper end face of the upper convex ring 21 is flush with the upper end face of the correction table 1. A mating insertion hole 22 is opened at the center of the lower end of the fixed adsorption cylinder 2. The mating insertion hole 22 is connected to the interior of the fixed adsorption cylinder 2. Two insertion holes 23 are symmetrically opened on both sides of the mating insertion hole 22 on the fixed adsorption cylinder 2. The insertion holes 23 penetrate to the upper end face of the fixed adsorption cylinder 2.

[0022] An auxiliary sealing ring 3 is sleeved on the upper convex ring 21, and a sealing gas pad 31 is provided on the upper end surface of the auxiliary sealing ring 3. Insertion rods 32 are symmetrically fixed on both sides of the lower end of the auxiliary sealing ring 3. The insertion rods 32 are inserted into the insertion holes 23, and a first spring 33 is sleeved on the insertion rods 32. The first spring 33 is located on the lower side of the fixed adsorption cylinder 2. A mounting bracket 34 is fixedly provided at the lower end of the insertion rods 32. A rotating wheel 35 is installed on the mounting bracket 34. The piston plate 4 is inserted into the fixed adsorption cylinder 2, and its upper end surface is flush with the upper end surface of the upper convex ring 21 when the piston plate 4 is not in operation. The two ends of the first spring 33 are respectively welded to the lower end surface of the fixed adsorption cylinder 2 and the upper end surface of the mounting bracket 34.

[0023] A hollow fitting rod 41 is fixedly installed at the lower end of the piston plate 4. The hollow fitting rod 41 is inserted into the fitting hole 22, and a circular base plate 42 is fixedly installed at the lower end of the hollow fitting rod 41. A second spring 43 is sleeved on the hollow fitting rod 41. The second spring 43 is located on the lower side of the fixed adsorption cylinder 2. The two ends of the second spring 43 are respectively welded to the lower end surface of the fixed adsorption cylinder 2 and the upper end surface of the circular base plate 42.

[0024] An L-shaped plate 44 is fixedly installed on one side of the circular base 42. A limit rod 45 is fixedly installed at the lower end of the L-shaped plate 44. A movable insert rod 5 is inserted into the hollow mating rod 41. A connecting frame 51 is welded to the lower end of the movable insert rod 5. A movable connecting rod 6 is hinged on the connecting frame 51. The other end of the movable connecting rod 6 is movably connected to the inclined push frame 7. The diameter of the movable insert rod 5 is equal to the inner diameter of the hollow mating rod 41, and the movable insert rod 5 can move freely.

[0025] The inclined pusher 7 has a bearing hole 71, a bearing 8 is installed in the bearing hole 71, the bearing 8 is fitted with a threaded drive rod 9, the threaded drive rod 9 is threaded in the threaded hole 13, and a mating frame 72 is fixedly installed on the lower side of the inclined pusher 7, and a movable connecting rod 6 is hinged on the mating frame 72.

[0026] When straightening the casting, the smooth, flat bottom surface of the casting is placed over the mounting through hole 11. Then, the threaded drive rod 9 is rotated. Under the action of the inclined plane, the rotating wheel 35 is pushed upward, which in turn pushes the auxiliary sealing ring 3 upward, causing the sealing air pad 31 to contact the bottom surface of the casting and compress it. This ensures the seal between the casting and the upper convex ring 21. When the rotating wheel 35 is on the flat part of the inclined pusher 7, the auxiliary sealing ring 3 remains stable and no longer moves upward. During this process, the connecting frame 51 is pushed downward by the movable connecting rod 6. Move until the lower end of the connecting frame 51 contacts the limiting rod 45, thus preventing the connecting frame 51 from moving further downward relative to the hollow mating rod 41. Then, as the threaded drive rod 9 rotates, it drives the inclined pusher 7 to continue moving. Under the action of the movable connecting rod 6, the hollow mating rod 41 will be pushed downward, which in turn will drive the piston plate 4 downward. This creates a negative pressure in the fixed adsorption cylinder 2 while ensuring sealing, thus firmly adsorbing and fixing the casting on the straightening table 1. The operation is simple, convenient and quick. Reverse rotation of the threaded drive rod 9 will reset the piston plate 4, allowing the casting to be released.

[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for straightening the shape of iron mold sand-coated castings, comprising a straightening table (1), characterized in that: The center of the straightening table (1) is provided with an installation through hole (11), and a fixed support plate (12) is fixedly provided on the lower side of one end of the straightening table (1). The fixed support plate (12) is provided with a threaded hole (13). A casting convenient fixing mechanism is installed on the straightening table (1). The casting convenient fixing mechanism includes a fixed adsorption cylinder (2), an auxiliary sealing ring (3), a first spring (33), a piston plate (4), a second spring (43), a movable insert rod (5), a movable connecting rod (6), an inclined push frame (7), a bearing (8), and a threaded drive rod (9). The fixed adsorption cylinder (2) Inserted into the mounting through hole (11) and welded into the mounting through hole (11), the upper end of the fixed adsorption cylinder (2) is fixedly provided with an upper convex ring (21), the upper end face of the upper convex ring (21) is flush with the upper end face of the correction table (1), a mating insertion hole (22) is opened at the center of the lower end of the fixed adsorption cylinder (2), the mating insertion hole (22) is connected to the interior of the fixed adsorption cylinder (2), and two insertion holes (23) are symmetrically opened on the fixed adsorption cylinder (2) on both sides of the mating insertion hole (22), the insertion holes (23) penetrate to the upper end face of the fixed adsorption cylinder (2); The auxiliary sealing ring (3) is sleeved on the upper convex ring (21), and a sealing air cushion (31) is provided on the upper end surface of the auxiliary sealing ring (3). Insertion rods (32) are symmetrically fixed on both sides of the lower end of the auxiliary sealing ring (3). The insertion rods (32) are inserted into the insertion holes (23), and a first spring (33) is sleeved on the insertion rods (32). The first spring (33) is located on the lower side of the fixed adsorption cylinder (2). The lower end of the plug rod (32) is fixedly provided with a mounting bracket (34), and a rotating wheel (35) is installed on the mounting bracket (34). The piston plate (4) is inserted into the fixed adsorption cylinder (2), and the upper end face of the piston plate (4) is flush with the upper end face of the upper convex ring (21) when it is not working. A hollow fitting rod (41) is fixedly provided at the lower end of the piston plate (4). The hollow fitting rod (41) is inserted into the fitting hole (22). A circular base plate (42) is fixedly provided at the lower end of the hollow fitting rod (41). A second spring (43) is sleeved on the hollow fitting rod (41). The second spring (43) is located on the lower side of the fixed adsorption cylinder (2). An L-shaped plate (44) is fixedly installed on one side of the circular chassis (42), and a limit rod (45) is fixedly installed at the lower end of the L-shaped plate (44). A movable insert rod (5) is inserted into the hollow fitting rod (41), and a connecting frame (51) is welded to the lower end of the movable insert rod (5). A movable connecting rod (6) is hinged on the connecting frame (51), and the other end of the movable connecting rod (6) is movably connected to the inclined push frame (7); The inclined pusher (7) has a bearing hole (71) and a bearing (8) is installed in the bearing hole (71). The bearing (8) is fitted with a threaded drive rod (9). The threaded drive rod (9) is threadedly connected in the threaded hole (13). A mating frame (72) is fixedly installed on the lower side of the inclined pusher (7). A movable connecting rod (6) is hinged on the mating frame (72).

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