CN219746265U

CN219746265U - Casting sand box

Info

Publication number: CN219746265U
Application number: CN202320632369.9U
Authority: CN
Inventors: 宋文涛; 马平洋; 陈永华
Original assignee: Shangqiu Hengxing Casting Co ltd
Current assignee: Shangqiu Hengxing Casting Co ltd
Priority date: 2023-03-28
Filing date: 2023-03-28
Publication date: 2023-09-26
Anticipated expiration: 2033-03-28

Abstract

The utility model discloses a casting sand box, which comprises an upper box body and a lower box body, wherein the upper box body can be placed on the lower box body, a plurality of vertical positioning rods are arranged on the side wall of the upper box body, a plurality of positioning hole seats are arranged on the side wall of the lower box body, and each positioning rod can be inserted into the corresponding positioning hole seat; the side wall of the upper box body is further provided with a plurality of connecting fasteners, each connecting fastener comprises a rotating shaft, a mounting seat, a screw rod and a nut, the mounting seats are fixedly arranged on the side wall of the upper box body, the rotating shaft is hinged with the mounting seats, the middle part of the rotating shaft is vertically connected with the screw rod, the screw rod is in threaded connection with the nut, the side wall of the lower box body is further provided with a plurality of clamping seats, and each screw rod of each connecting fastener can downwards rotate into the corresponding clamping seat. The utility model can improve the positioning precision and the fixing reliability between the upper box body and the lower box body, thereby ensuring the quality of castings.

Description

Casting sand box

Technical Field

The utility model relates to the technical field of casting, in particular to a casting sand box.

Background

Casting is a metal hot working process which is relatively early mastered by humans and has been known for about 6000 years. China has entered the full bloom of bronze castings between 1700 and 1000 years before the first official metase, and has reached quite high levels in technology. Casting is a process in which liquid metal is cast into a casting cavity that conforms to the shape of the part, and after it has cooled to solidify, the part or blank is obtained.

The sand box is filled with molding sand with a sand mold, the sand box is generally divided into an upper box and a lower box, molten iron flows into the sand mold through a pouring cup and a sand inner channel arranged in the upper box, a casting is formed after cooling in the sand mold, the pouring cup is removed from the upper box, the upper box and the lower box are separated, and the casting is taken out. However, when the upper box body and the lower box body are in butt joint, the accuracy of butt joint is ensured, the dimensional accuracy of castings can be ensured, and high-temperature molten iron enters a casting cavity to enable the sand boxes to be heated and expanded, so that the upper box body and the lower box body are easy to displace, the quality of the castings is further affected, and therefore, the positioning and fixing between the upper box body and the lower box body during casting are particularly important.

Disclosure of Invention

In view of the above, the utility model aims to overcome the defects in the prior art, and provide a casting sand box which improves the positioning accuracy and the fixing reliability between an upper box body and a lower box body and ensures the quality of castings.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a casting sand box comprises an upper box body and a lower box body, wherein the upper box body can be placed on the lower box body, a plurality of vertical positioning rods are arranged on the side wall of the upper box body, a plurality of positioning hole seats are arranged on the side wall of the lower box body, and each positioning rod can be inserted into the corresponding positioning hole seat; the side wall of the upper box body is further provided with a plurality of connecting fasteners, each connecting fastener comprises a rotating shaft, a mounting seat, a screw rod and a nut, the mounting seats are fixedly arranged on the side wall of the upper box body, the rotating shaft is hinged with the mounting seats, the middle part of the rotating shaft is vertically connected with the screw rod, the screw rod is in threaded connection with the nut, the side wall of the lower box body is further provided with a plurality of clamping seats, and each screw rod of each connecting fastener can downwards rotate into the corresponding clamping seat.

Further, a chamfer is arranged at the opening of the top of the positioning hole seat.

Further, the bottom of the positioning rod is of an arc structure.

Further, handles are symmetrically arranged on two sides of the upper box body and the lower box body.

Further, the positioning rod, the positioning hole seat, the connecting fastener and the clamping seat are respectively provided with two groups and are arranged in a crossed symmetry manner along the diagonal line of the upper box body and the lower box body.

The beneficial effects of the utility model are as follows:

the upper box body and the lower box body are provided with the matched positioning rod, the positioning hole seat, the connecting fastener and the clamping seat, and the positioning rod is inserted into the positioning hole seat to ensure that the upper box body and the lower box body are accurately butted and the quality of cast after pouring is ensured; the screw rod of the connecting fastener rotates downwards to the corresponding clamping seat, and then the nut is rotated to enable the nut to prop against the lower part of the clamping seat, so that the upper box body and the lower box body are prevented from displacement caused by thermal expansion of the sand box in the vertical direction. The opening at the top of the positioning hole seat is provided with a chamfer, and the bottom of the positioning rod is of an arc structure, so that the positioning rod can be smoothly inserted into the positioning hole seat. Handles are symmetrically arranged on two sides of the upper box body and the lower box body, so that the box body can be conveniently moved. The diagonal line crossed symmetry is adopted to set up the position of locating lever and locating hole seat, connecting fastener and cassette, sets up two sets of locating levers and locating hole seat on a diagonal line and is used for the location, sets up two sets of connecting fastener and cassette on another diagonal line and is used for fixedly, on the basis that reduces the part use, the reliability of box and lower box connection is guaranteed to the maximum extent.

Drawings

FIG. 1 is a schematic diagram of a combined structure of the present utility model;

FIG. 2 is a second schematic diagram of the assembled structure of the present utility model;

FIG. 3 is a schematic diagram of an exploded construction of the present utility model;

FIG. 4 is a schematic view of a partial enlarged structure of a positioning rod according to the present utility model;

FIG. 5 is a schematic view of a positioning hole seat in a partially enlarged structure according to the present utility model;

FIG. 6 is a schematic view of a connection structure of a connection fastener and a holder according to the present utility model.

In the figure: 1-upper box, 2-lower box, 3-locating rod, 4-locating hole seat, 401-chamfer, 5-connecting fastener, 501-rotating shaft, 502-mounting seat, 503-screw, 504-nut, 6-clamping seat and 7-handle.

Description of the embodiments

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-6, the casting sand box structure schematic diagram provided by the utility model comprises an upper box body 1 and a lower box body 2, wherein the upper box body 1 can be placed on the lower box body 2, and handles 7 are symmetrically arranged on two sides of the upper box body 1 and the lower box body 2, so that the box body can be conveniently moved. Be provided with a plurality of vertical locating levers 3 on the lateral wall of last box 1, be provided with a plurality of locating hole seats 4 on the lower box 2 lateral wall to every locating lever 3 all can insert in the corresponding locating hole seat 4, and locating lever 3 inserts in the locating hole seat 4 and is used for guaranteeing to go up box 1 and lower box 2 butt joint accuracy, guarantees casting quality after the pouring.

The side wall of the upper box body 1 is further provided with a plurality of connecting fasteners 5, each connecting fastener 5 comprises a rotating shaft 501, a mounting seat 502, a screw 503 and a nut 504, the mounting seat 502 is fixedly arranged on the side wall of the upper box body 1, the rotating shaft 501 is hinged with the mounting seat 502, the middle part of the rotating shaft 501 is vertically connected with the screw 503, the screw 503 is in threaded connection with the nut 504, the side wall of the lower box body 2 is further provided with a plurality of clamping seats 6, and each screw 503 of each connecting fastener 5 can rotate downwards into the corresponding clamping seat 6 so as to ensure that the upper box body 1 and the lower box body 2 cannot displace in the vertical direction due to thermal expansion of a sand box.

As shown in fig. 5, a chamfer 401 is arranged at the top opening of the positioning hole seat 4; as shown in fig. 4, the bottom of the positioning rod 3 has a circular arc structure, which can help the positioning rod 3 to be smoothly inserted into the positioning hole seat 4.

As shown in fig. 1 and 2, the positioning rod 3 and the positioning hole seat 4, the connecting fastener 5 and the clamping seat 6 are respectively provided with two groups, and are arranged along the diagonal line of the upper box body 1 and the lower box body 2 in a crossed symmetrical manner, two groups of the positioning rod 3 and the positioning hole seat 4 are arranged on one diagonal line for positioning, and two groups of the connecting fastener 5 and the clamping seat 6 are arranged on the other diagonal line for fixing, so that the connection reliability of the upper box body 1 and the lower box body 2 is ensured to the greatest extent on the basis of reducing the use of parts.

The working principle is as follows:

during combination, the handles 7 on two sides of the upper box body 1 are held by two hands, the positioning rods 3 on the upper box body 1 are aligned with the positioning hole seats 4 on the lower box body 2, the positioning rods 3 are inserted into the positioning hole seats 4, the upper box body 1 is installed on the lower box body 2, then the screw rod 503 is rotated downwards, the screw rod 503 is rotated into the clamping seat 6, then the nut 504 is rotated to enable the nut 504 to be abutted under the clamping seat 6, gaskets and elastic washers can be installed on the nut 504 to improve pretightening force, and the fact that displacement of the upper box body 1 and the lower box body 2 cannot occur in the vertical direction due to thermal expansion of the sand boxes is ensured.

Finally, it is noted that the above-mentioned embodiments are merely for illustrating the technical solution of the present utility model, and that other modifications and equivalents thereof by those skilled in the art should be included in the scope of the claims of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.

Claims

1. A casting flask, characterized in that: the novel box comprises an upper box body (1) and a lower box body (2), wherein the upper box body (1) can be placed on the lower box body (2), a plurality of vertical positioning rods (3) are arranged on the side wall of the upper box body (1), a plurality of positioning hole seats (4) are arranged on the side wall of the lower box body (2), and each positioning rod (3) can be inserted into the corresponding positioning hole seat (4); the utility model discloses a box, including box (1) and nut, go up and be provided with on the lateral wall of box (1) still a plurality of connecting fastener (5), connecting fastener (5) are including pivot (501), mount pad (502), screw rod (503) and nut (504), mount pad (502) are fixed to be set up on the lateral wall of box (1), pivot (501) are articulated with mount pad (502), pivot (501) middle part is connected with screw rod (503) perpendicularly, screw rod (503) and nut (504) threaded connection, still be provided with a plurality of cassette (6) on box (2) lateral wall down to in screw rod (503) of every connecting fastener (5) all can rotate to corresponding cassette (6).

2. The casting flask according to claim 1, wherein: and a chamfer (401) is arranged at the opening of the top of the positioning hole seat (4).

3. The casting flask according to claim 2, wherein: the bottom of the positioning rod (3) is of an arc structure.

4. The casting flask according to claim 1, wherein: the two sides of the upper box body (1) and the lower box body (2) are symmetrically provided with handles (7).

5. The casting flask according to claim 1, wherein: the locating rod (3) and the locating hole seat (4), the connecting fastener (5) and the clamping seat (6) are respectively arranged in two groups and are arranged in a crossed symmetrical mode along the diagonal line of the upper box body (1) and the lower box body (2).