Slender loam core positioning structure and detection structure

Abstract

The utility model relates to a slender loam core positioning structure and a detection structure, which are characterized in that the slender loam core positioning structure comprises a slender loam core and a cross-shaped positioning piece embedded in the upper end face of the slender loam core, and the cross-shaped positioning piece comprises a first sheet and a second sheet which are vertically and fixedly arranged. The upper end face of the cross-shaped positioning piece is flush with the upper end face of the slender loam core; the slender loam core positioning structure and the detection structure are reasonable in design, and the installation position of the slender loam core can be conveniently determined.

Description

Technical field:

[0002] The utility model relates to a slender mud core positioning structure and a detection structure for realizing the accurate position of the slender mud core in a sand mold. Background technology:

[0004] At present, large metal castings (length, width and height are all greater than 1 meter) are usually produced using sand molds. These castings have some elongated through holes, which usually need to be made using elongated clay cores. The accuracy of the installation position of the elongated clay cores and their parallelism or perpendicularity to the reference surface directly affect the quality of the finished product.

[0005] At present, the Chinese patent "Sand core positioning structure for large casting mold closing process" with publication number CN216938304U has been retrieved, which includes a sand box, molding sand and a combined core; the molding sand is in the sand box, and the cavity in the molding sand constitutes the mold cavity for casting molding; the combined core is installed in the mold cavity through a core seat; the combined core is composed of a plurality of unit cores, and adjacent unit cores are separated by gap pads; the gap pads are air bags; the air bags are connected to an air pipe, and the air pipe is connected to an air valve; the air pipe is in an air pipe channel; the air pipe channel has two Part, the first air pipe channel is in the gap between the unit cores, and the second air pipe channel is embedded in the molding sand; the position of one end of the second air pipe channel corresponds to the position of the core seat, and the other end of the second air pipe channel is on the side wall of the sand box; the air valve is outside the sand box. Although this patent can greatly save the workload of the production process, reduce production hours, improve work efficiency, enhance quality stability, avoid sand inclusion defects and size deviations; but this patent cannot facilitate the determination of the installation position of the slender mud core and its parallelism or verticality with the reference surface. Summary of the invention:

[0007] In view of the above-mentioned problems, the purpose of the present utility model is to provide a slender mud core positioning structure and a detection structure, which are reasonably designed and are conducive to conveniently determining the installation position of the slender mud core.

[0008] The technical solution of the utility model is as follows:

[0009] The utility model provides a slender mud core positioning structure, which is characterized by comprising a slender mud core and a cross positioning member embedded in the upper end surface of the slender mud core, wherein the cross positioning member comprises a first thin sheet and a second thin sheet fixedly arranged perpendicularly to each other, and the upper end surface of the cross positioning member is flush with the upper end surface of the slender mud core.

[0010] Preferably, the first thin sheet and the second thin sheet are both rectangular thin sheets, and the middle parts of the first thin sheet and the second thin sheet are perpendicular to each other.

[0011] Preferably, the first sheet and the second sheet are made of plastic by integral injection molding.

[0012] Preferably, the first sheet and the second sheet both include two identical rectangular halves, and the cross positioning member includes four rectangular halves, the inner sides of the rectangular halves are fixedly connected, and adjacent rectangular halves are staggered by 90 degrees in the circumferential direction.

[0013] Preferably, the cross intersection of the above-mentioned cross positioning member is located at the center of the upper end surface of the slender mud core.

[0014] The utility model discloses an installation method of the slender mud core positioning structure, which comprises pre-fabricating a slender mud core, and then pressing a cross positioning piece into the center position of the upper end surface of the slender mud core, so that the upper end surface of the cross positioning piece is flush with the upper end surface of the slender mud core, and it can also be ensured that the cross intersection of the cross positioning piece is located at the center of the upper end surface of the slender mud core.

[0015] The utility model realizes a detection structure for the accurate position of a slender mud core in a sand mold, and is characterized in that it comprises a sand mold and a plurality of slender mud cores arranged in the sand mold, a cross positioning piece is embedded in the upper end surface of the slender mud core, the cross positioning piece comprises a first thin sheet and a second thin sheet fixedly arranged perpendicularly to each other, the upper end surface of the cross positioning piece is flush with the upper end surface of the slender mud core, the upper surface of the sand mold is detachably connected with at least one group of horizontally arranged cross reference lines, and the cross of the cross positioning piece is directly opposite to the cross of the cross reference line.

[0016] Preferably, the first thin sheet and the second thin sheet are both rectangular thin sheets, and the middle parts of the first thin sheet and the second thin sheet are perpendicular to each other.

[0017] Preferably, the first sheet and the second sheet are made of plastic by integral injection molding.

[0018] Preferably, the first thin sheet and the second thin sheet each include two identical rectangular halves, and the cross positioning member includes four rectangular halves, the inner edges of the rectangular halves are fixedly connected, and adjacent rectangular halves are offset by 90 degrees in the circumferential direction; the cross intersection of the cross positioning member is located at the center of the upper end surface of the slender mud core.

[0019] Preferably, both ends of the cross reference line are tied to nails, and the nails are fixed to the upper surface of the sand mold at corresponding positions.

[0020] The utility model realizes a working method of a detection structure for the accurate position of a slender mud core in a sand mold. The slender mud core having a cross positioning piece installed on the upper end surface is placed in a sand cavity of the sand mold. At least one group of horizontally arranged cross reference lines are detachably connected to the upper surface of the sand mold. The cross intersection of the cross reference lines is the theoretical center point of the slender mud core. When the cross of the cross positioning piece is directly opposite to the cross of the cross reference lines, the actual center point of the slender mud core, that is, the theoretical center point, coincides, so that the position of the slender mud core is accurately positioned. At the same time, when the upper end surface of the slender mud core is flush with or parallel to the parallelly arranged cross reference lines, it can be ensured that the center line of the slender mud core is parallel or perpendicular to the reference surface of the sand mold (the inner side surface or the inner bottom surface of the sand cavity of the sand mold). Description of the drawings:

[0022] The utility model is further described below in conjunction with the accompanying drawings;

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the cross positioning member of the utility model;

[0024] Figure 2 It is a three-dimensional structural schematic diagram of the slender mud core positioning structure of the utility model;

[0025] Figure 3 It is a top view of the slender mud core positioning structure of the utility model;

[0026] Figure 4 It is a top view of the detection structure of the utility model (when the slender mud core is misplaced);

[0027] Figure 5 yes Figure 4 KK cross-section diagram. Specific implementation method:

[0029] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0030] The utility model discloses a slender mud core positioning structure, comprising a slender mud core 1 and a cross positioning member 2 embedded in the upper end surface of the slender mud core 1, wherein the cross positioning member 2 comprises a first thin sheet 201 and a second thin sheet 202 fixedly arranged perpendicularly to each other, and the upper end surface of the cross positioning member is flush with the upper end surface of the slender mud core. Preferably, the cross intersection of the cross positioning member is located at the center of the upper end surface of the slender mud core.

[0031] In one embodiment, the first sheet 201 and the second sheet 202 are both rectangular sheets, and the middle parts of the first sheet 201 and the second sheet 202 are perpendicular to each other.

[0032] In one embodiment, the first sheet 201 and the second sheet 202 may be made of plastic by integral injection molding.

[0033] In one embodiment, the first sheet and the second sheet both include two identical rectangular halves, and the cross positioning member includes four rectangular halves 203. The inner sides of the rectangular halves are fixedly connected, and adjacent rectangular halves are staggered by 90 degrees in the circumferential direction.

[0034] The first sheet 201 and the second sheet 202 may have a length of 5-20 cm, a width of 1-10 cm, and a thickness of 0.5-2 cm.

[0035] The utility model discloses an installation method of the slender mud core positioning structure, which comprises pre-fabricating a slender mud core, and then pressing a cross positioning piece into the center position of the upper end surface of the slender mud core, so that the upper end surface of the cross positioning piece is flush with the upper end surface of the slender mud core, and it can also be ensured that the cross intersection of the cross positioning piece is located at the center of the upper end surface of the slender mud core.

[0036] The utility model realizes a detection structure for the accurate position of a slender mud core in a sand mold, comprising a sand mold A1 and a plurality of slender mud cores 1 arranged in the sand mold A1. The slender mud core 1 can be formed by filling mud and sand in a steel pipe and then solidifying it. The specific solidification method is a conventional means and will not be repeated here.

[0037] A cross positioning member 2 is embedded in the upper end surface of the slender mud core, and the cross positioning member 2 includes a first thin sheet 201 and a second thin sheet 202 fixedly arranged perpendicularly to each other. The upper end surface of the cross positioning member is flush with the upper end surface of the slender mud core. Preferably, the cross intersection of the above-mentioned cross positioning member is located at the center of the upper end surface of the slender mud core.

[0038] The upper surface of the sand mold is detachably connected with at least one set of horizontally arranged cross reference lines A2, the cross of the cross positioning piece is opposite to the cross of the cross reference lines, the cross reference lines are formed perpendicular to each other by horizontal and vertical pulling of two thin wires A3, the two ends of the thin wires are tied to nails A4, and the nails are fixed on the upper surface of the sand mold at the corresponding position, and the position of the nails fixed on the sand mold can be obtained by measuring with a tape measure or the like.

[0039] In one embodiment, the first sheet 201 and the second sheet 202 are both rectangular sheets, and the middle parts of the first sheet 201 and the second sheet 202 are perpendicular to each other.

[0040] In one embodiment, the first sheet 201 and the second sheet 202 may be made of plastic by integral injection molding.

[0041] In one embodiment, the first sheet and the second sheet both include two identical rectangular halves, and the cross positioning member includes four rectangular halves 203. The inner sides of the rectangular halves are fixedly connected, and adjacent rectangular halves are staggered by 90 degrees in the circumferential direction.

[0042] The first sheet 201 and the second sheet 202 may have a length of 5-20 cm, a width of 1-10 cm, and a thickness of 0.5-2 cm.

[0043] The utility model realizes a working method of a detection structure for the accurate position of a slender mud core in a sand mold. The slender mud core having a cross positioning piece installed on the upper end surface is placed in a sand cavity of the sand mold. At least one group of horizontally arranged cross reference lines are detachably connected to the upper surface of the sand mold. The cross intersection of the cross reference lines is the theoretical center point of the slender mud core. When the cross of the cross positioning piece is directly opposite to the cross of the cross reference line, the actual center point of the slender mud core, that is, the theoretical center point, coincides, so that the position of the slender mud core is accurately positioned. When the cross of the cross positioning piece is misaligned with the cross of the cross reference line (such as Figure 4 As shown), the slender mud core needs to be moved so that the cross of the cross positioning piece of the slender mud core is opposite to the cross of the cross reference line, and when the upper end surface of the slender mud core is flush with or parallel to the cross reference line set in parallel, it can ensure that the center line of the slender mud core is parallel or perpendicular to the sand mold reference surface (the inner side surface or inner bottom surface of the sand mold sand cavity); but when the upper end surface of the slender mud core is inclined relative to the cross reference line set in parallel, it is necessary to place an inclined wedge block or the like at a certain position between the bottom surface of the slender mud core and the inner bottom surface of the sand mold cavity to ensure that the center line of the slender mud core is parallel or perpendicular to the sand mold reference surface (the inner side surface or inner bottom surface of the sand mold sand cavity).

[0044] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the utility model, which should be included in the scope of the technical solution for protection of the utility model.

Claims

1. A slender mud core positioning structure, characterized in that: It comprises a slender mud core and a cross positioning piece embedded in the upper end surface of the slender mud core, wherein the cross positioning piece comprises a first thin sheet and a second thin sheet fixedly arranged perpendicularly to each other, and the upper end surface of the cross positioning piece is flush with the upper end surface of the slender mud core.

2. The slender mud core positioning structure according to claim 1, characterized in that: The first thin sheet and the second thin sheet are both rectangular thin sheets, and the middle parts of the first thin sheet and the second thin sheet are perpendicularly connected to each other.

3. The slender mud core positioning structure according to claim 1 or 2, characterized in that: The first sheet and the second sheet are made of plastic by integral injection molding.

4. The slender mud core positioning structure according to claim 1, characterized in that: The first sheet and the second sheet both include two identical rectangular halves, and the cross positioning member includes four rectangular halves. The inner sides of the rectangular halves are fixedly connected, and adjacent rectangular halves are staggered by 90 degrees in the circumferential direction.

5. The slender mud core positioning structure according to claim 1, characterized in that: The cross intersection of the cross positioning member is located at the center of the upper end surface of the slender mud core.

6. A detection structure, characterized in that: It includes a sand mold and a plurality of slender clay cores arranged in the sand mold, a cross positioning piece is embedded in the upper end surface of the slender clay core, the cross positioning piece includes a first thin plate and a second thin plate fixedly arranged perpendicularly to each other, the upper end surface of the cross positioning piece is flush with the upper end surface of the slender clay core, and the upper surface of the sand mold is detachably connected with at least one group of horizontally arranged cross reference lines, and the cross of the cross positioning piece is opposite to the cross of the cross reference line.

7. The detection structure according to claim 6, characterized in that: The first thin sheet and the second thin sheet are both rectangular thin sheets, and the middle parts of the first thin sheet and the second thin sheet are perpendicularly connected to each other.

8. The detection structure according to claim 6 or 7, characterized in that: The first sheet and the second sheet are made of plastic by integral injection molding.

9. The detection structure according to claim 6, characterized in that: The first thin sheet and the second thin sheet both include two identical rectangular halves, and the cross positioning member includes four rectangular halves, the inner sides of each rectangular half are fixedly connected, and adjacent rectangular halves are offset by 90 degrees in the circumferential direction; the cross intersection of the cross positioning member is located at the center of the upper end surface of the slender mud core.

10. The detection structure according to claim 6, characterized in that: The two ends of the cross reference line are tied to nails, and the nails are fixed on the upper surface of the corresponding position of the sand mold.

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