CN-117206466-B - Sand mold self-carrying core support device for non-mold processing

CN117206466BCN 117206466 BCN117206466 BCN 117206466BCN-117206466-B

Abstract

The invention discloses a die-free processing sand mold self-carrying core supporting device which comprises a lower seat and an upper seat, wherein a first screw rod is fixedly connected to the upper surface of the lower seat, a threaded cylinder is connected with the first screw rod in a threaded manner, the threaded cylinder is connected with the upper seat in a penetrating and rotating manner through a bearing, a fixing mechanism is arranged in the lower seat, the fixing mechanism comprises a mounting groove formed in the lower seat, the lower seat is slidably connected with an inserting block through the mounting groove, the inserting block is provided with a liquid passing hole and a cavity, the liquid passing hole is used for communicating the cavity with the outside, an annular plate is fixedly connected to the inner side wall of the liquid passing hole, a sliding plate is hermetically and slidably connected in the liquid passing hole, a plurality of springs are fixedly connected between the sliding plate and the annular plate, two third holes are formed in the inserting block, and the third holes are used for communicating the cavity with the outside. The sand core support has the advantages that the core support is more stable, the stable support of the sand core can be ensured, and the internal components can be reused, so that the manufacturing cost of the core support is lower.

Inventors

JIN HUI
SHI CHANGKUN
HAN HAO
LIU WEI
LI RUI

Assignees

安徽应流集团霍山铸造有限公司

Dates

Publication Date: 20260508
Application Date: 20230914

Claims (5)

1. The self-carrying core support device for the sand mold without mold processing comprises a lower seat (1) and an upper seat (2), and is characterized in that a first screw rod (3) is fixedly connected to the upper surface of the lower seat (1), the first screw rod (3) is in threaded connection with a threaded cylinder (4), the threaded cylinder (4) is in through rotation connection with the upper seat (2) through a bearing, and a fixing mechanism is arranged in the lower seat (1); The fixing mechanism comprises a mounting groove (8) formed in a lower seat (1), the lower seat (1) is connected with an inserting block (9) in a sliding manner through the mounting groove (8), the inserting block (9) is provided with a liquid passing hole (11) and a cavity (15), the liquid passing hole (11) is communicated with the outside, an annular plate (12) is fixedly connected to the inner side wall of the liquid passing hole (11), a sliding plate (13) is connected in the liquid passing hole (11) in a sealing sliding manner, a plurality of springs (14) are fixedly connected between the sliding plate (13) and the annular plate (12), the inserting block (9) is provided with two third holes (17), the third holes (17) are communicated with the cavity (15) and the outside, the lower seat (1) is connected with an inserting rod (18) in a sealing sliding manner through the third holes (17), a first fixing block (16) is fixedly connected to the inner bottom wall of the cavity (15), two opposite side walls of the first fixing block (16) are fixedly connected with a second screw rod (19), and the second screw rod (19) is correspondingly connected with the screw rod (18); The hydraulic oil filling device is characterized in that a force application mechanism is arranged in the upper seat (2), the force application mechanism comprises a liquid cavity (7), the liquid cavity (7) is arranged in the upper seat (2), a pump plate (34) is connected in the liquid cavity (7) in a sealing sliding manner, the upper seat (2) is connected with a plurality of connecting rods (32) in a penetrating manner, one ends of the connecting rods (32) penetrate through the liquid cavity (7) and are fixedly connected with the pump plate (34), the other ends of the connecting rods penetrate through the upper seat (2) and are fixedly connected with a pressing plate (33) in an outside and jointly, a first hole (5) is formed in the first screw (3), a second hole (10) is formed in the lower seat (1), the first hole (5) is communicated with the liquid passing hole (11), the first screw (3) is connected with a sliding tube (6) in a sealing sliding manner through the first hole (5), the sliding tube (6) penetrates through the upper seat (2) and is fixedly connected with the liquid cavity (7), and hydraulic oil is filled in the liquid cavity (7).
2. The die-free processing sand mold self-supporting device according to claim 1, wherein the fixing mechanism further comprises two limiting grooves (20), the two limiting grooves (20) are respectively arranged on two opposite inner side walls of the mounting groove (8), the lower seat (1) is slidably connected with two limiting blocks (21) through the limiting grooves (20), the side walls of one opposite side of the two limiting blocks (21) are respectively provided with a fixing groove (22), the limiting blocks (21) are slidably connected with a fixing block two (28) through the fixing grooves (22), two functional cavities (23) are formed in the lower seat (1), a rotating shaft (24) is rotatably connected between the two opposite inner side walls of the functional cavities (23) through bearings, the rotating shaft (24) is in interference fit with a toothed column (25), the toothed column (25) is meshed with a first rack (27) and two second racks (29), the inserting block (9) is provided with two fourth holes (26), the corresponding functional cavities (23) are fixedly connected with the first racks (27) and the second racks (28) through the corresponding racks (27) in a penetrating way, the second rack (29) is connected with the plug block (9) in a penetrating and sliding mode, and one end of the second rack (29) located outside the plug block (9) is fixedly connected with an operation plate (30).
3. A mould-free machining sand mould self-supporting device according to claim 1, characterized in that an operating mechanism is arranged in the upper seat (2), the operating mechanism comprises a driving cavity (36), the driving cavity (36) is formed in the upper seat (2), the threaded cylinder (4) penetrates through the driving cavity (36), a section of the threaded cylinder (4) located in the driving cavity (36) is provided with a driven gear (37) in an interference fit manner, the upper seat (2) is connected with a steering shaft (38) in a penetrating and rotating manner through a bearing, one end of the steering shaft (38) penetrates through to extend into the driving cavity (36) and is provided with a driving gear (39) in an interference fit manner, and the other end of the steering shaft (38) penetrates through to extend to the outside of the upper seat (2) and is fixedly connected with a steering block (40).
4. A die-less machined sand mould self-supporting device as claimed in claim 3, characterized in that the number of teeth of the driving gear (39) is smaller than the number of teeth of the driven gear (37).
5. The die-free machining sand mold self-carrying core supporting device according to claim 1, wherein the upper seat (2) is provided with a balance hole (35), and the balance hole (35) communicates the liquid cavity (7) with the outside.

Description

Sand mold self-carrying core support device for non-mold processing Technical Field The invention relates to the technical field of casting, in particular to a self-carrying core support device for a non-mould processing sand mould. Background Sand casting refers to a casting method for producing castings in a sand mold, steel, iron and most nonferrous alloy castings can be obtained by the sand casting method, and because the molding materials used in the sand casting are cheap and easy to obtain, the casting mold is simple and convenient to manufacture, and is suitable for single-piece production, batch production and mass production of castings, the sand casting process is a basic process in casting production for a long time, in the casting process of some parts with central holes, sand cores are generally required to be used in the casting process, in the casting process of the sand cores, casting components with gradually-formed central holes are generally required to be used for supporting the sand cores by using a core supporting device in order to ensure that the positions of the sand cores are not changed and are stable. In the prior art, the existing chaplet is generally a simple I-shaped supporting block, the height of the existing chaplet cannot be freely adjusted, chaplets with different heights are manufactured according to different sand core heights, the use is very inconvenient, the chaplet and a sand mold are generally in direct contact, and certain connection is not available, so that the chaplet is easily flushed to be misplaced by molten metal in the casting process, the supporting effect of the sand core is greatly reduced, the casting is seriously scrapped, and unnecessary loss is caused. Disclosure of Invention The invention aims to solve the problems in the prior art, and provides a die-free processing sand mold self-carrying core support device. In order to achieve the above purpose, the present invention adopts the following technical scheme: the self-contained core support device for the non-mould processing sand mould comprises a lower seat and an upper seat, wherein a first screw is fixedly connected to the upper surface of the lower seat, a threaded cylinder is connected with the first screw in a threaded manner, the threaded cylinder and the upper seat are connected in a penetrating and rotating manner through a bearing, and a fixing mechanism is arranged in the lower seat; The fixing mechanism comprises a mounting groove formed in a lower seat, the lower seat is slidably connected with an inserting block through the mounting groove, the inserting block is provided with a liquid passing hole and a cavity, the liquid passing hole is used for communicating the cavity with the outside, an annular plate is fixedly connected to the inner side wall of the liquid passing hole, a sliding plate is fixedly connected to the inside of the liquid passing hole in a sealing sliding manner, a plurality of springs are fixedly connected between the sliding plate and the annular plate, two third holes are formed in the inserting block, the third holes are used for communicating the cavity with the outside, the lower seat is provided with an inserting rod in a sealing sliding manner through the third holes, a first fixing block is fixedly connected to the bottom wall in the cavity, and two opposite side walls of the first fixing block are fixedly connected with second screws which are in threaded connection with the corresponding inserting rods. Further, fixed establishment still includes two spacing grooves, two the spacing groove is seted up respectively on two inside walls that the mounting groove is relative, the lower seat is through spacing groove sliding connection has two stoppers, two the fixed slot has all been seted up to the lateral wall of stopper opposite side, the stopper has fixed block two through fixed slot sliding connection, two function chambeies have been seted up in the lower seat, be connected with the pivot through the bearing rotation between two inside walls that the function chamber is relative, pivot interference fit has the tooth post, tooth post meshing has a first rack and two second racks, two fourth holes have been seted up to the inserted block, the fourth hole will correspond the function chamber communicates with the external world, first rack is through fourth hole through block lateral wall and extend to in the fixed slot, first rack and corresponding two fixed block fixed connection, second rack and inserted block run through sliding connection, the one end fixedly connected with operation panel that the second rack is located the inserted block outside. Further, be provided with force application mechanism in the upper seat, force application mechanism includes the liquid chamber, the liquid chamber is seted up in the upper seat, sealed sliding connection in liquid chamber has the pump board, upper seat runs through sliding connection has a plurality of c