Tool for rapidly detecting size of combined sand core

Abstract

The utility model discloses a tool for rapidly detecting the size of a combined sand core, which comprises an upper cover plate, a lower cover plate and a detection plate, a horizontal ruler is arranged at the upper end of the upper cover plate; the detection plate comprises a detection part and a carrying part, an upper detection laser and a lower detection laser which are symmetrical up and down are arranged on the upper end face of the detection part, included angles are formed between the upper detection laser and the detection part and between the lower detection laser and the detection part, and the ray center of the upper detection laser points to the upper edge of the detection part; the ray center of the lower detection laser points to the lower edge of the detection part; the periphery of the upper end face of the lower cover plate is a lower diffuse reflection area, and the periphery of the lower end face of the upper cover plate is an upper diffuse reflection area. According to the combined sand core detection device, unqualified combined sand cores in the combined sand cores can be rapidly detected, the detection efficiency is improved, and the production quality is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of casting, in particular to a tool for quickly detecting the size of a combined sand core. Background Art

[0002] In today's foundry industry, composite sand cores, made up of several different sand cores, are often used. These cores are prone to uneven overall dimensions. Excessively large or small dimensions can lead to defects such as core insertion difficulties, sand squeezing, and black coating. Therefore, dimensional inspection is necessary after assembly. Conventional methods use vernier calipers to measure and compare, identifying cores that don't meet dimensional requirements. However, this method is laborious and time-consuming, significantly limiting production efficiency. Therefore, a method for rapidly inspecting sand core dimensions is needed.

[0003] For example, publication number CN204975220U discloses an open impeller blade forming core assembly, which is composed of a plurality of blade sand cores. The first and second blade sand cores can be respectively synthesized into a whole core by a basic sand core and a remaining sand core.

[0004] The impeller sand core needs to be height-tested after assembly to ensure that the entire core size requirements are met. Utility Model Content

[0005] In view of the above-mentioned defects in the prior art, the purpose of the present invention is to provide a tool for quickly detecting the size of a composite sand core.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A tool for quickly detecting the size of a combined sand core, comprising an upper cover plate, a lower cover plate, and a detection plate; a spirit level is provided at the upper end of the upper cover plate; the detection plate comprises a detection portion and a transport portion, the upper end surface of the detection portion being provided with an upper detection laser and a lower detection laser that are symmetrical in upper and lower directions, the upper detection laser and the lower detection laser forming an angle with the detection portion, the ray center of the upper detection laser pointing to the upper edge of the detection portion, and the ray center of the lower detection laser pointing to the lower edge of the detection portion; the upper end surface of the lower cover plate is surrounded by a lower diffuse reflection area, and the lower end surface of the upper cover plate is surrounded by an upper diffuse reflection area.

[0008] Furthermore, a carrying handle is provided on the side of the upper cover;

[0009] Specifically, two ends of the front end surface of the upper cover plate are respectively provided with a first placement indicating laser and a second placement indicating laser facing directly downward.

[0010] Furthermore, the width of the detection portion is 0.2mm-0.3mm smaller than the theoretical detection number;

[0011] Specifically, both sides of the front end of the detection portion are chamfered;

[0012] Specifically, the angle between the upper detection laser, the lower detection laser and the detection part is 15°;

[0013] Specifically, the housings of the upper detection laser and the lower detection laser are both provided with a connecting plate parallel to the detection portion, the upper end surface of the detection portion is provided with a mounting post, and the connecting plate is connected to the mounting post by screws.

[0014] Furthermore, the width of the transport portion is greater than that of the detection portion, forming a limiting step, and the width of the limiting step is less than the thickness of the lower cover plate.

[0015] In one embodiment of the present invention, a lower finger sleeve is provided at the center of the lower end surface of the transport portion, and an upper finger sleeve is provided at the upper end surface of the transport portion, and at least one upper finger sleeve is provided.

[0016] In another embodiment of the present invention, the transport portion is provided with a transport handle.

[0017] Furthermore, the center of the upper end surface of the lower cover plate is the lower polished surface area, and the center of the lower end surface of the upper cover plate is the upper polished surface area.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The utility model can quickly detect unqualified combined sand cores in a combination sand core, thereby improving detection efficiency and ensuring production quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a structural diagram of a tool for quickly detecting the size of a composite sand core in the utility model;

[0021] Figure 2 This is a structural diagram of the lower cover plate in the utility model;

[0022] Figure 3 It is a structural schematic diagram of the detection board in the utility model.

[0023] In the figure: 1. Upper cover; 1.1. First placement indicator laser; 1.2. Carrying handle; 1.3. Level; 1.4. Second placement indicator laser;

[0024] 2. Lower cover; 2.1. Lower diffuse reflection area; 2.2. Lower glossy area;

[0025] 3. Detection board; 3.1. Detection unit; 3.2. Transport unit; 3.3. Lower finger sleeve; 3.4. Upper finger sleeve; 3.5. Upper detection laser; 3.6. Lower detection laser; 3.7. Connecting plate; 3.8. Mounting column;

[0026] 4. Combined sand core. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] See also Figure 1 The utility model provides a tool for quickly detecting the size of a combined sand core, which includes an upper cover plate 1, a lower cover plate 2, and a detection plate 3.

[0029] A level ruler 1.3 is provided at the upper end of the upper cover plate 1 for detecting the levelness of the upper and lower end surfaces of the combined sand core 4. A carrying handle 1.2 is provided on the side of the upper cover plate 1 to facilitate the inspection personnel to move the upper cover plate 1. The two ends of the front end surface of the upper cover plate 1 are respectively provided with a first placement indication laser 1.1 and a second placement indication laser 1.4 facing directly downward to indicate the position of the upper cover plate 1 for easy placement.

[0030] Among them, a plurality of level rulers 1.3 can be provided to facilitate determination of the maximum inclination angle.

[0031] The detection plate 3 includes a detection portion 3.1 and a transport portion 3.2. The width of the detection portion 3.1 is 0.2mm-0.3mm smaller than the theoretical detection number. The two sides of the front end of the detection portion 3.1 are chamfered to facilitate the insertion of the detection portion 3.1 between the upper cover plate 1 and the lower cover plate. The upper end surface of the detection portion 3.1 is provided with an upper detection laser 3.5 and a lower detection laser 3.6 symmetrically arranged in a vertical direction. The upper detection laser 3.5 and the lower detection laser 3.6 are both at an angle of 15° with the detection portion 3.1. 5 points to the upper edge of the detection part 3.1, and the center of the ray of the lower detection laser 3.6 points to the lower edge of the detection part 3.1. The housings of the upper detection laser 3.5 and the lower detection laser 3.6 are both provided with a connecting plate 3.7 parallel to the detection part 3.1. The upper end surface of the detection part 3.1 is provided with a mounting post 3.8, and the connecting plate 3.7 is connected to the mounting post 3.8 by screws; the width of the transport part 3.2 is larger than the detection part 3.1, forming a limit step, and the width of the limit step is less than the thickness of the lower cover 2.

[0032] The center of the detection laser beam is directed toward the edge of the detection portion 3.1, so that the laser spot is partially located on the detection portion 3.1 and partially passes through the detection portion 3.1, which facilitates confirmation that the angle of the detection laser is arranged normally.

[0033] The power supply for the indicator laser can be externally connected through a lead, or a mobile power supply can be provided on the upper cover 1. In order to reduce the weight of the detection board 3, the power supply for the detection laser is externally connected through a lead.

[0034] It should be noted that the laser and level 1.3 are both existing technologies and can be purchased.

[0035] For inspecting parts with a small height, a lower finger sleeve 3.3 is provided at the center of the lower end surface of the transport part 3.2, and an upper finger sleeve 3.4 is provided on the upper end surface of the transport part 3.2. Two upper finger sleeves 3.4 are provided, the lower finger sleeve 3.3 serves as a thumb sleeve, and the upper finger sleeve 3.4 serves as an index finger sleeve and a middle finger sleeve. Four upper finger sleeves 3.4 can also be provided to assist all fingers in applying force, wherein the middle finger sleeve and the thumb sleeve correspond to each other for ergonomics.

[0036] For inspecting parts with large height, the transport portion 3.2 is provided with a transport handle for grasping or transporting using tools.

[0037] The center of the upper end surface of the lower cover plate 2 is the lower polished surface area 2.2, and the surrounding area of ​​the upper end surface of the lower cover plate 2 is the lower diffuse reflection area 2.1. The center of the lower end surface of the upper cover plate 1 is the upper polished surface area, and the surrounding area of ​​the lower end surface of the upper cover plate 1 is the upper diffuse reflection area. The lower polished surface area 2.2 and the upper polished surface area are used to contact the combined sand core 4, and the lower diffuse reflection area 2.1 and the upper diffuse reflection area are used to scatter the laser emitted by the detection plate 3 to generate a scattered light source, so that the detection personnel can observe the gap conveniently.

[0038] The lower diffuse reflection area 2.1 and the upper diffuse reflection area are realized by frosting, and the peripheral depths of the lower diffuse reflection area 2.1 and the upper diffuse reflection area are greater than the insertion depth of the detection part 3.1.

[0039] When in use, place the combined sand core 4 on the lower polished area 2.2 of the lower cover plate 2, turn on the first placement indicator laser 1.1 and the second placement indicator laser 1.4, suspend the upper cover plate 1, and move the upper cover plate 1 above the combined sand core 4. The two light spots are convenient for the observer to direct. After alignment, the operator puts down the upper cover plate 1, observes the level ruler 1.3, and selects the lowest and highest points of the maximum inclination angle as the detection positions.

[0040] Turn on the upper detection laser 3.5 and the lower detection laser 3.6, face the lower end surface of the detection plate 3, pick up the detection plate through the lower finger sleeve 3.3 and the upper finger sleeve 3.4 or use the transfer handle to insert the detection plate 3 between the upper cover 1 and the lower cover 2.

[0041] If the detection plate 3 cannot enter between the upper cover plate 1 and the lower cover plate 2, the size is too small. If it enters between the upper cover plate 1 and the lower cover plate 2, the laser will be emitted to the edge of the detection part 3.1, generating a scattered light source in the diffuse reflection area, highlighting the gap, and judging whether the size is too large according to the sand core requirements.

[0042] The detection plate 3 only detects one height value, but has high efficiency and can quickly detect an unqualified combined sand core 4 in a combined sand core.

[0043] All components not discussed in detail in this application and the connection methods of the components in this application are well-known technologies in the technical field and can be directly applied without further explanation.

[0044] In this utility model, the term "plurality" refers to two or more, unless otherwise specified. Terms such as "installed," "connected," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean fixed, removable, or integral; "connected" can mean directly or indirectly through an intermediary. Those skilled in the art will understand the specific meanings of these terms in this utility model based on specific circumstances.

[0045] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by terms such as "up", "down", "left", "right", "front" and "back" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the present invention.

[0046] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0047] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A tool for quickly detecting the size of a composite sand core, comprising an upper cover plate and a lower cover plate, characterized in that: Also included are test panels; A level is provided at the upper end of the upper cover plate; The detection plate includes a detection part and a transport part, and the upper end surface of the detection part is provided with an upper detection laser and a lower detection laser that are symmetrical in the upper and lower directions; The upper detection laser, the lower detection laser and the detection part form an angle, the ray center of the upper detection laser points to the upper edge of the detection part, and the ray center of the lower detection laser points to the lower edge of the detection part; The periphery of the upper end surface of the lower cover plate is a lower diffuse reflection area, and the periphery of the lower end surface of the upper cover plate is an upper diffuse reflection area.

2. A tool for quickly detecting the size of a composite sand core according to claim 1, characterized in that: A carrying handle is provided on the side of the upper cover; The two ends of the front end surface of the upper cover plate are respectively provided with a first placement indicating laser and a second placement indicating laser facing directly downward.

3. A tool for quickly detecting the size of a composite sand core according to claim 1, characterized in that: The width of the detection part is 0.2mm-0.3mm smaller than the theoretical detection number; Both sides of the front end of the detection part are chamfered; The angles between the upper detection laser, the lower detection laser and the detection part are both 15°; The housings of the upper detection laser and the lower detection laser are both provided with a connecting plate parallel to the detection part. The upper end surface of the detection part is provided with a mounting post. The connecting plate is connected to the mounting post by screws.

4. A tool for quickly detecting the size of a composite sand core according to claim 1, characterized in that: The width of the conveying portion is greater than that of the detecting portion, forming a limiting step, and the width of the limiting step is less than the thickness of the lower cover plate.

5. The tool for quickly detecting the size of a composite sand core according to claim 1, characterized in that: A lower finger sleeve is provided at the center of the lower end surface of the transport portion, and an upper finger sleeve is provided at the upper end surface of the transport portion, and at least one upper finger sleeve is provided.

6. The tool for quickly detecting the size of a composite sand core according to claim 1, characterized in that: The transport portion is provided with a transport handle.

7. The tool for quickly detecting the size of a composite sand core according to claim 1, characterized in that: The center of the upper end surface of the lower cover plate is the lower polished surface area, and the center of the lower end surface of the upper cover plate is the upper polished surface area.

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