Casting mold structure

Abstract

The utility model discloses a casting mold structure which comprises a mold plate, a mounting groove is formed in the mold plate, a plurality of positioning pins are arranged at the inner bottom of the mounting groove, an insert is mounted in the mounting groove through the positioning pins, and a positioning convex block is arranged on the inner side wall of the mounting groove and used for being attached to the side wall of the insert. The mold has the advantages that the risk that the insert topples over can be reduced, the positioning precision of the insert is improved, and the casting qualification rate of products is increased.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of casting mold, in particular to a casting mold structure. BACKGROUND

[0002] In the gravity casting process of casting technology, the insert is a very important part in the blank product. The cylinder sleeve plays a role in better eliminating residual stress, reducing deformation and crack tendency, etc. At the same time, the processing of the product blank is a very critical step, and the processing of the insert is the key to a good insert product.

[0003] In the prior art, the means for preventing the insert from deviating from the casting mold is to use positioning pins on the mold structure. The advantage of such mold positioning is that it is convenient to install and will not fall off, but the disadvantage is that if the insert is not lowered in place during the blank casting process, uneven processing will occur when the insert is processed, leading to problems such as insert deformation, affecting the appearance and performance of the whole machine. The installation of the insert in the gravity casting is a very important step. Before pouring, the insert needs to be installed in the mold positioning pin within a short time to make the insert more stable and not deviate left and right, so as to ensure that the casting obtains good quality. At present, the insert adopts the positioning mode of positioning pins. Since the pin hole fitting gap is usually 0.2mm, and the fitting depth is within 20mm, the insert block is easy to tilt, resulting in a position deviation of 1-2mm when processing the upper hole of the insert block in the subsequent process, which cannot meet the product technical requirements, causing the casting blank to be scrapped. If the positioning accuracy is to be improved, the length of the pin must be lengthened, but after lengthening, there are problems such as difficulty in installing the insert block, fast deformation of the pin, and short service life. CONTENT OF THE UTILITY MODEL

[0004] The main purpose of the present application is to provide a casting mold structure, which aims to solve the technical problem that the insert in the existing casting mold is easy to tilt, affecting the subsequent casting blank qualification rate.

[0005] To achieve the above-mentioned purpose, the present application provides a casting mold structure, which comprises a mold plate, the mold plate is provided with an installation slot, the inner bottom of the installation slot is provided with a plurality of positioning pins, the installation slot is installed with an insert through the plurality of positioning pins, the inner side wall of the installation slot is provided with a positioning protrusion, and the positioning protrusion is used for abutting the side wall of the insert.

[0006] Optionally, the insert comprises an arc-shaped sleeve, the arc-shaped sleeve is used for cooperating with an arc-shaped protrusion on the mold plate, the positioning protrusion abuts the side wall of the arc-shaped sleeve, and the arc-shaped sleeve is connected with a connecting part on both sides, and the connecting part is used for cooperating with the positioning pin.

[0007] Optionally, the two inner side walls of the installation slot are each provided with at least two positioning protrusions, and the two positioning protrusions on the same side are located on both sides of the arc-shaped protrusion on the mold plate.

[0008] Optionally, there are four positioning protrusions in total, and the four positioning protrusions are all integrally connected to the arc-shaped protrusion on the template.

[0009] Optionally, a mounting hole cooperating with the positioning pin is provided on the connecting portion, and the mounting hole is a through hole.

[0010] Optionally, the side wall of the connecting portion is provided with a plurality of reinforcing ribs.

[0011] Optionally, the positioning pin is detachably connected to the inner bottom of the mounting slot.

[0012] Optionally, the positioning pin is integrally connected to the inner bottom of the mounting slot.

[0013] The beneficial effects that this application can achieve are as follows:

[0014] The present application includes a template, which is provided with a mounting groove, and a plurality of positioning pins are provided on the inner bottom of the mounting groove. The mounting groove is provided with an insert through the plurality of positioning pins, and the inner side wall of the mounting groove is provided with a positioning protrusion, and the positioning protrusion is used to fit the side wall of the insert. Based on the structure of the present application, when installing the insert, the side wall of the insert is aligned with the positioning protrusion and inserted into the mounting groove, and the positioning and installation are performed by the positioning pins and the insert at the same time, thereby reducing the risk of the insert deviation after the insert is fixed with the positioning pin, and the positioning protrusion is pressed against both sides of the insert, which can effectively prevent the insert from tipping over due to the gap between the positioning pin and the insert, and the efficiency of the insert installation is higher and the positioning accuracy of the insert is better, thereby ensuring the qualified rate of the subsequent casting blank. Moreover, after adopting this structure, the height of the positioning pin can be reduced to 10mm, avoiding frequent replacement of deformed positioning pins. The life of the positioning pin is the same as that of the mold, and the replacement cost is greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] To more clearly illustrate the specific embodiments of this application or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0016] Fig. 1 This is a schematic structural diagram of a casting mold structure in an embodiment of the present application;

[0017] Fig. 2 This is a schematic diagram of a partially exploded structure of a casting mold structure in an embodiment of the present application;

[0018] Fig. 3 Schematic diagram of the structure of the insert in the embodiment of the present application.

[0019] Reference numerals:

[0020] 110 - template, 111 - mounting groove, 120 - positioning pin, 130 - insert, 131 - arc kit, 132 - connecting part, 133 - mounting hole, 134 - reinforcement rib, 140 - positioning protrusion.

[0021] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0023] It should be noted that all directional indications in the embodiments of the present application (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0024] In this application, unless otherwise specified or limited, the terms "connection" and "fixed" should be understood in a broad sense. For example, "connection" can mean fixed connection, detachable connection, or integration; it can mean mechanical connection or electrical connection; it can mean direct connection or indirect connection through an intermediate medium; it can mean internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0025] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present application, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement it. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0026] Example

[0027] Referring to Figs. 1-3 The embodiment provides a casting mold structure, which comprises a mold plate 110, wherein a mounting groove 111 is arranged on the mold plate 110, a plurality of positioning pins 120 are arranged on the inner bottom of the mounting groove 111, an insert 130 is mounted on the mounting groove 111 through the plurality of positioning pins 120, and a positioning protrusion 140 is arranged on the inner side wall of the mounting groove 111 and used for abutting against the side wall of the insert 130.

[0028] In the embodiment, when the insert 130 is mounted, the insert 130 is inserted into the mounting groove 111 with the side wall aligned with the positioning protrusion 140, and the insert 130 is positioned and mounted through the positioning pins 120 and the insert 130, so that, after the insert 130 is fixed through the positioning pins 120, the risk of deviation of the insert 130 is reduced, and the two sides of the insert 130 are abutted against through the positioning protrusion 140, so that the insert 130 can be effectively prevented from toppling due to the gap between the positioning pins 120 and the insert 130, the mounting efficiency of the insert 130 is higher, the positioning precision of the insert 130 is better, and therefore the qualified rate of a subsequent casting blank is ensured, and the height of the positioning pins 120 can be reduced to 10 mm after the structure is adopted, so that the positioning pins 120 are prevented from being frequently replaced due to deformation, the service life of the positioning pins 120 is the same as that of the mold, and the replacement cost is greatly reduced.

[0029] As an optional implementation, the insert 130 comprises an arc-shaped sleeve 131, the arc-shaped sleeve 131 is used for cooperating with an arc-shaped protrusion on the mold plate 110, the positioning protrusion 140 is abutted against the side wall of the arc-shaped sleeve 131, and the two sides of the arc-shaped sleeve 131 are connected with connecting portions 132, and the connecting portions 132 are used for cooperating with the positioning pins 120.

[0030] In the embodiment, due to the structural form of the casting mold, the mold plate 110 has the arc-shaped protrusion, and the arc-shaped protrusion is in the mounting groove 111, so that the insert 130 can be prevented from interfering with the arc-shaped protrusion through the arc-shaped sleeve 131, the connecting portions 132 are cooperatively connected with the positioning pins 120, and the arc-shaped sleeve 131 is abutted against through the positioning protrusion 140, so that, on the basis of the connecting portions 132 being limited through the positioning pins 120, the arc-shaped sleeve 131 is also limited through the positioning protrusion 140, stress is uniformly distributed, and therefore the insert 130 is firmly fixed and mounted in the mounting groove 111, and the reasonable layout of the limiting position of the insert 130 through the positioning protrusion 140 further reduces the risk of toppling of the insert 130.

[0031] As an optional implementation, the two inner side walls of the mounting groove 111 are each provided with at least two positioning protrusions 140, and the two positioning protrusions 140 on the same side are respectively located on the two sides of the arc-shaped protrusion on the mold plate 110.

[0032] In the embodiment, the two inner side walls of the mounting groove 111 abut against at least two positioning protrusions 140, and the positioning protrusions 140 are distributed on both sides of the arc-shaped protrusion. By reasonably arranging the positioning protrusions 140, uniform stress is formed on the insert 130, the clamping stability of the insert 130 is improved, and the risk of the insert 130 toppling is further reduced.

[0033] As an optional embodiment, the four positioning protrusions 140 are integrally connected to the arc-shaped protrusion on the mold plate 110.

[0034] In the embodiment, the number of the positioning protrusions 140 should be as small as possible to reduce the difficulty of mold manufacturing. Therefore, four positioning protrusions 140 are arranged to ensure the basic anti-toppling effect of the insert 130. The positioning protrusions 140 are integrally connected to the arc-shaped protrusion on the mold plate 110, the structure is compact, the structural strength is high, and the positioning protrusions 140 are not easy to be damaged.

[0035] As an optional embodiment, the connecting portion 132 is provided with a mounting hole 133 matched with the positioning pin 120. The mounting hole 133 is a through hole. When mounting, the installation gap between the mounting hole 133 and the positioning pin 120 can be conveniently observed from the outside through the through hole, so as to improve the installation precision.

[0036] As an optional embodiment, the side wall of the connecting portion 132 is provided with a plurality of reinforcing ribs 134. The connecting portion 132 is a stress part. The strength of the connecting portion 132 can be improved by the reinforcing ribs 134, so as to improve the service life of the insert 130.

[0037] As an optional embodiment, the positioning pin 120 is detachably connected to the inner bottom of the mounting groove 111. A pin hole can be arranged at the inner bottom of the mounting groove 111, so that the positioning pin 120 can be detachably mounted, so as to replace the deformed positioning pin 120.

[0038] As an optional embodiment, the positioning pin 120 is integrally connected to the inner bottom of the mounting groove 111. The connection strength is high, the deformation is not easy, and the service life is longer.

[0039] The above is only the preferred embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation using the contents of the specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the present application.

Claims

1. A casting mold structure, characterized in that: It includes a template, which is provided with a mounting groove, a plurality of positioning pins are provided on the inner bottom of the mounting groove, an insert is installed in the mounting groove through the plurality of positioning pins, and a positioning protrusion is provided on the inner side wall of the mounting groove, and the positioning protrusion is used to fit the side wall of the insert.

2. A casting mold structure according to claim 1, characterized in that: The insert includes an arc-shaped kit, which is used to cooperate with the arc-shaped protrusion on the template. The positioning protrusion is attached to the side wall of the arc-shaped kit. Both sides of the arc-shaped kit are connected with connecting parts, which are used to cooperate and connect with the positioning pin.

3. A casting mold structure according to claim 2, characterized in that: At least two positioning protrusions are provided on both inner side walls of the installation groove, and the two positioning protrusions on the same side are respectively located on both sides of the arc-shaped protrusion on the template.

4. A casting mold structure according to claim 3, characterized in that: There are four positioning protrusions in total, and the four positioning protrusions are all integrally connected to the arc-shaped protrusions on the template.

5. A casting mold structure according to any one of claims 2 to 4, characterized in that: The connecting portion is provided with a mounting hole that cooperates with the positioning pin, and the mounting hole is a through hole.

6. A casting mold structure according to any one of claims 2 to 4, characterized in that: The side wall of the connecting portion is provided with a plurality of reinforcing ribs.

7. A casting mold structure according to any one of claims 1 to 4, characterized in that: The positioning pin is detachably connected to the inner bottom of the installation slot.

8. A casting mold structure according to any one of claims 1 to 4, characterized in that: The positioning pin is integrally connected to the inner bottom of the installation slot.

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