CN211516004U

CN211516004U - Sand box for casting assembled speed reducer box body

Info

Publication number: CN211516004U
Application number: CN201921827406.1U
Authority: CN
Inventors: 马建明
Original assignee: Taixing Jianming Foundry
Current assignee: Taixing Jianming Foundry
Priority date: 2019-10-28
Filing date: 2019-10-28
Publication date: 2020-09-18
Anticipated expiration: 2029-10-28

Abstract

The utility model discloses a sand box for casting of assembled speed reducer box body, which comprises a cope box and a drag box, wherein the cope box is arranged at the upper end of the drag box, the outer walls at the left and right ends of the cope box and the drag box are provided with a die sinking assistor, the lower end of the cope box is provided with an upper outer box raising foot, the upper end of the drag box at the lower side of the upper outer box raising foot is provided with a lower outer box raising foot, before casting, a nut is screwed on the outer wall at the lower end of the lower counterpoint press plate to reduce the distance between the upper counterpoint press plate and the lower counterpoint press plate, thereby compressing a compression spring surrounding the outer side of the circumference of a screw rod, when the die is opened, the compressed compression spring of the loose nut can spring the upper counterpoint press plate and the lower counterpoint press plate mutually, so that a gap is formed at the joint of the cope box and the drag box, thereby being convenient for opening the sand, the taking-out speed of the cast finished product is increased, and the working efficiency is improved.

Description

Sand box for casting assembled speed reducer box body

Technical Field

The utility model belongs to the technical field of speed reducer box casting production is relevant, concretely relates to sand box is used in casting of assembled speed reducer box.

Background

Sand casting refers to a casting process that produces a casting in a sand mold. Steel, iron and most nonferrous metal castings can be obtained by sand casting. Because the molding material used for sand casting is cheap and easy to obtain, the casting mould is simple and convenient to manufacture, and can adapt to single-piece production, batch production and mass production of castings, the basic process in casting production has been long, and when the sand mould is manufactured, a frame which is bottomless, uncovered and surrounds the sand mould is required to prevent the sand from being smashed and extruded outwards, and the frame is called a sand box.

The prior sand box technology for casting the assembled speed reducer box body has the following problems: in the actual casting production process of the sand box for casting the assembled speed reducer box body, the periphery of the sand box is often clamped and fixed to ensure the sealing performance of the sand box, and then the sealing paste and the like are coated to achieve the effect of complete sealing, but the phenomenon that the upper sand box and the lower sand box are tightly sucked and difficult to separate under the interaction between the upper sand box and the lower sand box after the casting is completed can be caused, so that more manpower is required to be consumed, the production time is slowed down, and the working efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sand box is used in casting of assembled speed reducer box to the interact is inhaled tightly and is difficult to the separation problem down between cope flask and the drag flask after the casting that proposes in solving above-mentioned background art is accomplished.

In order to achieve the above object, the utility model provides a following technical scheme: a sand box for casting an assembled speed reducer box body comprises an upper sand box and a lower sand box, wherein the upper sand box is installed at the upper end of the lower sand box, mold opening assistors are arranged on the outer walls of the left end and the right end of the upper sand box and the lower sand box, the lower end of the upper sand box is provided with an upper outer box warping foot, the upper end of the lower sand box on the lower side of the upper outer box warping foot is provided with a lower outer box warping foot, the outer wall of the upper end of the upper outer box warping foot is connected with an upper L-shaped connecting block, the upper end of the upper L-shaped connecting block is connected with an upper aligning pressing plate, one end of the outer side of the upper aligning pressing plate is connected with a pressing bolt, the lower end of the pressing bolt is provided with a screw rod, an upper rubber ring is arranged on the outer wall of the lower end of the upper aligning pressing plate, the lower end of the upper rubber ring is, and a lower rubber ring is arranged on the outer wall of the upper end of the lower alignment pressing plate, and a nut is arranged on the outer wall of the lower end of the lower rubber ring.

Preferably, the outer wall of the front end of the cope flask is provided with an upper positioning clamping block, the outer wall of the front end of the drag flask on the lower side of the upper positioning clamping block is provided with a lower positioning clamping block, the outer walls of the upper ends of the upper positioning clamping block and the lower positioning clamping block are provided with mounting base plates, the mounting base plates are fixedly connected with the upper positioning clamping block and the lower positioning clamping block through positioning bolts, the rear ends of the upper positioning clamping block and the lower positioning clamping block are provided with triangular positioning bolts which vertically penetrate through the mounting base plates, and casting sand chambers are arranged in the cope flask and the drag flask.

Preferably, lower L type connecting block and last L type connecting block all warp foot and last outer container perk foot fixed connection with lower outer container respectively through the welded mode.

Preferably, the lower end of the screw rod penetrates through the lower alignment pressure plate and is fixedly connected with the lower alignment pressure plate through a nut.

Preferably, the lower alignment pressure plate is provided with an insertion hole corresponding to the screw rod, and the circumferential diameter of the insertion hole on the lower alignment pressure plate is larger than that of the screw rod.

Preferably, the circle centers of the upper rubber ring and the lower rubber ring are vertically on the same straight line.

Preferably, the compression spring is circumferentially outward of the screw.

Preferably, the cross sectional area of the lower outer box warped foot is the same as that of the upper outer box warped foot.

Compared with the sand case technique for the casting of current assembled speed reducer box, the utility model provides a sand case for the casting of assembled speed reducer box possesses following beneficial effect:

1. the utility model discloses an add on the upper and lower both ends outer wall that upper outer container perk foot and lower outer container perk foot and establish L type connecting block and lower L type connecting block, the upper and lower both ends of L type connecting block and lower L type connecting block are connected with upper counterpoint clamp plate and lower counterpoint clamp plate respectively, the right-hand member at upper counterpoint clamp plate is fixed with the clamp bolt, the screw rod of clamp bolt lower extreme passes through lower counterpoint clamp plate and passes through the nut to be fixed, leave the gap between screw rod and the jack, make when compressing tightly upper counterpoint clamp plate and lower counterpoint clamp plate, the screw rod can not forced to break off the bend, thereby influence next use, be provided with compression spring outside the circumference of screw rod, the upper and lower both ends of compression spring are connected with upper rubber ring and lower rubber ring respectively, make upper counterpoint clamp plate and lower counterpoint clamp plate have the restoring force;

2. the utility model discloses before the pouring, through screwing up the nut of revolving on counterpoint clamp plate lower extreme outer wall down, will go up counterpoint clamp plate and the distance between the counterpoint clamp plate down and reduce, thereby the compression surrounds the compression spring in the screw rod circumference outside, when the die sinking, the compression spring that not hard up nut compressed will go up counterpoint clamp plate and the mutual bounce-off of counterpoint clamp plate down, make cope flask and drag flask junction appear the gap, thereby the convenience is opened the sand box, take out the casting finished product, easy operation is convenient, can accomplish the separation of cope flask and drag flask rapidly, accelerate the off-the-shelf speed of taking out of casting, and the work efficiency is improved.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:

FIG. 1 is a schematic structural view of a sand box for casting an assembled speed reducer box body according to the present invention;

fig. 2 is a schematic side view of the mold opening assisting device according to the present invention;

fig. 3 is an enlarged schematic structural view of the mold opening aid provided by the present invention;

in the figure: 1. a cope flask; 2. a drag flask; 3. a mold opening assistor; 4. tilting the feet of the lower outer box; 5. raising the feet of the upper outer box; 6. positioning the bolt; 7. installing a base plate; 8. a lower positioning clamp block; 9. an upper positioning clamping block; 10. A triangular positioning bolt; 11. a casting sand chamber; 12. an upper alignment pressure plate; 13. a hold-down bolt; 14. gluing a rubber ring; 15. a compression spring; 16. a screw; 17. a rubber ring is arranged; 18. a nut; 19. a lower alignment pressing plate; 20. a lower L-shaped connecting block; 21. and an upper L-shaped connecting block.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a sand box for casting an assembled speed reducer box body comprises an upper sand box 1 and a lower sand box 2, wherein the upper sand box 1 is installed at the upper end of the lower sand box 2, mold opening auxiliary devices 3 are arranged on the outer walls of the left end and the right end of the upper sand box 1 and the lower sand box 2, an upper outer box raising foot 5 is arranged at the lower end of the upper sand box 1, a lower outer box raising foot 4 is arranged at the upper end of the lower sand box 2 below the upper outer box raising foot 5, the cross sectional areas of the lower outer box raising foot 4 and the upper outer box raising foot 5 are the same, the upper sand box 1 and the lower sand box 2 can be aligned and folded up and down, the upper sand box 1 and the lower sand box 2 are fixed by a triangular positioning bolt 10 which is vertically inserted at the front ends of the upper sand box 1 and the lower sand box 2 to prevent dislocation, four corners of the lower outer box raising foot 4 and the upper outer box raising foot 5 are pressed by the four mold opening auxiliary devices 3 on the, the upper end of the upper L-shaped connecting block 21 is connected with an upper aligning pressure plate 12, one end of the outer side of the upper aligning pressure plate 12 is connected with a pressure bolt 13, the lower end of the pressure bolt 13 is provided with a screw rod 16, the outer wall of the lower end of the upper aligning pressure plate 12 is provided with a rubber ring 14, the lower end of the rubber ring 14 is connected with a compression spring 15, the compression spring 15 surrounds the outer side of the circumference of the screw rod 16, when a screwing nut 18 on the outer wall of the lower end of the lower aligning pressure plate 19 is screwed down, the distance between the upper aligning pressure plate 12 and the lower aligning pressure plate 19 is reduced, so that the compression spring 15 surrounding the outer side of the circumference of the screw rod 16 is compressed, when the mold is opened, the compression spring 15 compressed by the loosening nut 18 enables the upper aligning pressure plate 12 and the lower aligning pressure plate 19 to be mutually.

A sand box for casting an assembled speed reducer box body comprises a lower L-shaped connecting block 20 connected to the outer wall of the lower end of a lower outer box warping foot 4, a lower L-shaped connecting block 20 and an upper L-shaped connecting block 21 are respectively and fixedly connected with the lower outer box warping foot 4 and an upper outer box warping foot 5 in a welding mode, the upper end and the lower end of the lower L-shaped connecting block 20 and the upper end of the upper L-shaped connecting block 21 are respectively and fixedly connected with an upper contraposition pressing plate 12 and a lower contraposition pressing plate 19 in a welding mode, the integral stability of a mold opening assisting device 3 when being connected with an upper sand box 1 and a lower sand box 2 can be ensured, the lower end of the lower L-shaped connecting block 20 is connected with the lower contraposition pressing plate 19, a jack corresponding to a screw rod 16 is arranged on the lower contraposition pressing plate 19, the circumferential diameter of the jack on the lower contraposition pressing plate 19 is larger than that of the screw rod 16, a gap, screw rod 16 can not break curved off with the fingers and thumb by force to the influence is used, is provided with down rubber ring 17 on the upper end outer wall of counterpoint clamp plate 19 down, goes up rubber ring 14 and is vertical on a straight line with the centre of a circle of lower rubber ring 17, goes up rubber ring 14 and is connected with compression spring 15 down between the inner wall of rubber ring 17 subtend, and embedded in the inner wall of last rubber ring 14 and lower rubber ring 17 in the upper and lower both ends of compression spring 15, thereby makes compression spring 15 can fix and counterpoint between clamp plate 12 and the clamp plate 19 down at last counterpoint.

A sand box for casting an assembled speed reducer box body comprises a nut 18 arranged on the outer wall of the lower end of a lower rubber ring 17, the lower end of a screw rod 16 penetrates through a lower aligning pressure plate 19 and is fixedly connected with the lower aligning pressure plate through the nut 18, the upper end of a compression bolt 13 is fixedly welded on an upper aligning pressure plate 12, the upper aligning pressure plate 12 and the lower aligning pressure plate 19 can be mutually extruded through screwing the nut 18, so that an upper sand box 1 and a lower sand box 2 are tightly pressed, sealing paste is coated between gaps of lower outer box warped feet 4 and upper outer box warped feet 5, molten iron cannot flow out during casting, an upper positioning clamping block 9 is arranged on the outer wall of the front end of the upper sand box 1, a lower positioning clamping block 8 is arranged on the outer wall of the front end of the lower sand box 2 on the lower side of the upper positioning clamping block 9, an installation base plate 7 is arranged on the outer walls of the upper positioning clamping block 9 and the lower positioning clamping block 8, the installation base plate 7 is fixedly connected with the upper, the rear ends of the upper positioning clamping block 9 and the lower positioning clamping block 8 are provided with a triangular positioning bolt 10 which vertically penetrates through, and the interiors of the cope flask 1 and the drag flask 2 are provided with a casting sand chamber 11.

The utility model discloses a theory of operation and use flow: after the utility model is installed, the sand box is used for molding, turning over the sand mould and carrying the sand mould, the sand box can be tightly fixed in the sand mould tamped by the sand box, the four walls of the sand box can bear the lateral pressure of molten metal to the sand mould, the sand box is provided with an aligning device (namely a triangular positioning bolt 10 on an upper positioning clamping block 9 and a lower positioning clamping block 8) and a clamping device when in mold closing, a mould sample is put into the sand to be manufactured into a mould, the prototype and the sand are jointed in a pouring system, the mould sample is removed, the gap of the mould is filled with molten metal, the metal is cooled, the sand mould is knocked off to take out a casting, before pouring, the distance between the upper contraposition pressing plate 12 and the lower contraposition pressing plate 19 is reduced by screwing up a screwing nut 18 on the outer wall at the lower end of the lower contraposition pressing plate 19, thereby compressing a compression spring 15 which is encircled outside the circumference of a screw, the compressed compression spring 15 of the loose nut 18 springs the upper contraposition pressure plate 12 and the lower contraposition pressure plate 19 away from each other, so that a gap appears at the joint of the upper sand box 1 and the lower sand box 2, the sand boxes are conveniently opened, and the casting finished product is taken out.

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

Claims

1. The utility model provides a sand box is used in casting of assembled speed reducer box, includes cope flask (1) and drag flask (2), its characterized in that: the mould opening auxiliary device is characterized in that the upper sand box (1) is arranged at the upper end of the lower sand box (2), the mould opening auxiliary device (3) is arranged on the outer walls of the left end and the right end of the upper sand box (1) and the lower sand box (2), the upper outer box warping feet (5) are arranged at the lower end of the upper sand box (1), the lower outer box warping feet (4) are arranged at the upper end of the lower sand box (2) on the lower side of the upper outer box warping feet (5), the upper L-shaped connecting block (21) is connected onto the outer wall of the upper end of the upper outer box warping feet (5), the upper end of the upper L-shaped connecting block (21) is connected with an upper aligning pressure plate (12), one end of the outer side of the upper aligning pressure plate (12) is connected with a pressure bolt (13), a screw rod (16) is arranged at the lower end of the pressure bolt (13), an upper rubber ring (, lower outer container perk foot (4) be connected with down L type connecting block (20) on the lower extreme outer wall, the lower extreme of lower L type connecting block (20) is connected with down counterpoint clamp plate (19), be provided with down rubber ring (17) on the upper end outer wall of counterpoint clamp plate (19) down, be provided with nut (18) on the lower extreme outer wall of lower rubber ring (17).

2. The sand box for casting the assembled speed reducer case according to claim 1, wherein: the sand casting device is characterized in that an upper positioning clamping block (9) is arranged on the outer wall of the front end of the upper sand box (1), a lower positioning clamping block (8) is arranged on the outer wall of the front end of the lower sand box (2) on the lower side of the upper positioning clamping block (9), an installation base plate (7) is arranged on the outer wall of the upper end of the upper positioning clamping block (9) and the outer wall of the upper end of the lower positioning clamping block (8), the installation base plate (7) is fixedly connected with the upper positioning clamping block (9) and the lower positioning clamping block (8) through positioning bolts (6), a vertically-penetrating triangular positioning bolt (10) is arranged at the rear ends of the upper positioning clamping block (9) and the lower positioning clamping block (8), and a casting sand chamber (11) is arranged inside the upper sand box (1) and.

3. The sand box for casting the assembled speed reducer case according to claim 1, wherein: and the lower L-shaped connecting block (20) and the upper L-shaped connecting block (21) are fixedly connected with the lower outer box warping foot (4) and the upper outer box warping foot (5) respectively in a welding mode.

4. The sand box for casting the assembled speed reducer case according to claim 1, wherein: the lower end of the screw rod (16) penetrates through the lower contraposition pressure plate (19) and is fixedly connected with the lower contraposition pressure plate through a nut (18).

5. The sand box for casting the assembled speed reducer case according to claim 1, wherein: the lower alignment pressing plate (19) is provided with an insertion hole corresponding to the screw rod (16), and the circumferential diameter of the insertion hole in the lower alignment pressing plate (19) is larger than that of the screw rod (16).

6. The sand box for casting the assembled speed reducer case according to claim 1, wherein: the circle centers of the upper rubber ring (14) and the lower rubber ring (17) are vertically on the same straight line.

7. The sand box for casting the assembled speed reducer case according to claim 1, wherein: the compression spring (15) surrounds the screw (16) on the outside of its circumference.

8. The sand box for casting the assembled speed reducer case according to claim 1, wherein: the cross sectional area of the lower outer box warping foot (4) is the same as that of the upper outer box warping foot (5).