Spectral test block forming die

Abstract

The utility model discloses a spectrum test block forming mold, belongs to the technical field of metal casting, and is mainly used for solving the problems of large material waste and low repeated utilization rate of a traditional resin sand mold. The mold comprises a model mechanism, a fixing mechanism and a clamping mechanism, wherein the model mechanism realizes parting surface mold closing through concave-convex matching of a left model and a right model which are made of brass, so that the contour precision of a test block is ensured; the fixing mechanism adopts a No.45 steel base, and a model is fixed through a round pin, a flat pin and an inner hexagonal screw, so that no dislocation during mold assembly is ensured; the clamping mechanism quickly fastens the base through a butterfly nut and a movable joint screw, and operation is easy and convenient. According to the utility model, the thermal conductivity is improved and the cooling of the test block is accelerated through metal materials, the die assembly accuracy is ensured by combining a dual positioning structure (the positioning pin and the round flat pin), the production efficiency is remarkably improved, the service life of the die is remarkably prolonged, and the die is suitable for batch production of high-precision spectrum test blocks and has economical efficiency and environmental friendliness.

Description

TECHNICAL FIELD

[0001] The utility model relates to metal casting field, concretely for a mould for spectroscopy test block forming especially suitable for batch production high-precision spectroscopy test block's metal casting. BACKGROUND

[0002] Spectroscopy test block product such as Figure 1 As shown, the shape is similar to wine cup, 4mm thick cylindrical plane is test block observation metallographic structure face, middle connecting column 10mm straight sprue, upper end horn mouth shape is pouring cup, design horn shape pouring is convenient, secondly, it is convenient for operator to hold when polishing metallographic structure.

[0003] The original design spectroscopy test block forming mould is resin sand type, because production product batch is big, duration is long, the spectroscopy test block yield to be used is big, causes the large waste of resin sand, simultaneously, it is necessary to make a large number of spectroscopy test block sand type spare, causes production cost to increase, and the waste degree is big.According to the numerous characteristics of the original sand type spectroscopy test block casting of the above, the utility model provides a kind of metal casting mould, through optimization structure design and material selection, the problem of low production efficiency and high cost is solved. SUMMARY

[0004] The utility model aims at providing a kind of spectroscopy test block forming mould, by the cooperation of model mechanism, fixed mechanism and clamping mechanism, realize quick closing, accurate positioning and high repeat use rate.

[0005] To achieve the above object, the present application adopts the following technical scheme: a kind of spectroscopy test block forming mould, comprising:

[0006] Model mechanism is composed of left model and right model, the left model is combined with the right model by concave-convex cooperation to realize closing;

[0007] Fixed mechanism includes left fixed base and right fixed base, the left model and right model are fixed on left fixed base and right fixed base by positioning pin and inner hexagonal screw respectively, the left fixed base is combined with the right fixed base by round pin, flat pin and its corresponding pin hole to realize accurate closing;

[0008] Clamping mechanism includes butterfly nut and knuckle screw, one end of the knuckle screw is fixed on left fixed base or right fixed base, the other end is fastened by butterfly nut rotation, so that left fixed base and right fixed base are clamped.

[0009] Preferably, the material of the left model and the right model is brass.

[0010] Preferably, the material of the left fixed base and the right fixed base is 45 steel, and the surface hardness after heat treatment is HRC28-32.

[0011] Preferably, the butterfly nut and the universal screw rod of the clamping mechanism are standard parts.

[0012] Compared with the prior art, the present application has the following advantages: 1. The metal material mold has good heat conductivity, the cooling speed of the test block is fast, and the production efficiency is high; 2. The positioning pin and the pin hole, and the round flat pin double cooperation ensure the mold closing accuracy and avoid the wrong type; 3. The butterfly nut clamping mechanism is convenient to disassemble and assemble, and is suitable for batch production; 4. The mold has long service life, low cost and better environmental protection than the traditional resin sand mold. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a schematic view of the structure of a spectral test block;

[0014] Figure 2 is a schematic view of the overall structure of the mold;

[0015] Figure 3 is a schematic view of the disassembly of the model and the base;

[0016] Figure 4 is a sectional view of the clamping mechanism;

[0017] Figure 5 is a sectional view of the mold and the test block.

[0018] In the figure, 1 is a model mechanism, 2 is a clamping mechanism, 3 is a fixing mechanism, 101 is a left model, 102 is a right model, 201 is a butterfly nut, 202 is a universal screw rod, 301 is a left fixed base, and 302 is a right fixed base. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0020] In view of the problems of large material waste and low reuse rate of the traditional resin sand mold, the present application provides a spectral test block forming mold, as shown in Figures 2-5As shown, including model mechanism 1, clamping mechanism 2, fixed mechanism 3. Model mechanism 1: the shape of the test block is a rotary body mechanism, the center of the circular hole is divided into two parts, and the left and right models are convenient for matching. It is composed of left model 101 and right model 102, and the left model 101 and the right model 102 are combined through concave-convex matching relationship. Fixed mechanism 3, including left fixed base 301 and right fixed base 302, the left model 101 and the right model 102 are fixed on the left fixed base 301 and the right fixed base 302 through positioning pin and inner hexagonal screw, and the left fixed base 301 and the right fixed base 302 are combined through round pin, flat pin and corresponding pin hole to realize precise mold closing; The opening and closing position of the model should be accurate to prevent the appearance of the wrong type, and the model is placed on the fixed base respectively, and the positioning pin is matched between the bases to realize precise mold closing. Clamping mechanism 2, including butterfly nut 201 and articulated screw 202, one end of the articulated screw 202 is fixed on the left fixed base 301 or the right fixed base 302, and the other end is fastened by rotating the butterfly nut 201 to make the left fixed base 301 and the right fixed base 302 clamped. The model is fixed on the base, the base is combined by positioning pin and positioning hole to realize mold closing, and the two bases are fastened by butterfly nut 201 connecting rod mechanism. The model is made of brass, which has good heat conductivity. The fixed mechanism 3 is made of 45 steel, the surface is heat treated, the hardness is adjusted to HRC28-32, the surface strength and wear resistance are increased, and the butterfly nut 201 and the articulated screw 202 are standard parts.

[0021] The whole step of the spectral test block forming mold is as follows:

[0022] Step one: position the bottom surface of the left and right model blocks and the fixed base with two Φ8 positioning pins, and then fix them together with two M8 inner hexagonal screws. The bottom of the left model 101 has two M8 screw holes and two Φ8 pin holes. Insert the Φ8 pin into the pin hole, then position the model pin to the position of the pin hole on the left fixed base 301, and fix it on the fixed base. Pass the two M8 screws through the through hole of the fixed base to fix the left model 101 on the left fixed base 301. The right model 102 and the right fixed base 302 are fixed in the same way.

[0023] Step two: match the round and flat pins of the left and right fixed bases with the round and flat sleeves to make the left and right models completely close. Check whether the model is closed in place. The convex round pin and flat pin of the right fixed base 302 correspond to the concave round pin hole and flat pin hole of the left fixed base 301, and the concave and convex parts of the left and right models match and contact.

[0024] Step three: after mold closing, rotate the butterfly nut 201 connecting rod to the fixed base clamping groove, rotate the butterfly nut 201, and fasten the base. Thus, the whole spectral test block forming mold is assembled.

[0025] Step four: the flat side of the spectral test block molding mold is placed on the flat workbench, the metal liquid is poured along the horn mouth by using the pouring tool, the pouring is stopped until the pouring is full, the test block is taken out after the cooling to a certain temperature and the rotation of the butterfly nut 201 to the loosening state and the mold opening.

[0026] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A spectral tile forming mold characterized by, The utility model relates to a left model (101) and a right model (102) are combined through concave-convex cooperation, and the left model (101) and the right model (102) are fixed on the left fixed base (301) and the right fixed base (302) through locating pin and internal hexagonal screw respectively, and the left fixed base (301) and the right fixed base (302) are combined through round pin, flat pin and the corresponding pin hole cooperation, and the left fixed base (301) and the right fixed base (302) are clamped through the butterfly nut (201) and the articulated screw rod (202) of one end fixed on the left fixed base (301) or the right fixed base (302) and the other end rotation fastening. The left model (101) and the right model (102) are made of brass. The left fixed base (301) and the right fixed base (302) are made of 45# steel, and the surface heat treatment hardness is HRC28-32. The butterfly nut (201) and the articulated screw rod (202) of the clamping mechanism (2) are standard parts.

2. The spectral mastix molding die of claim 1, wherein: ​ 3. The spectral mastix molding die of claim 1, wherein: ​ 4. The spectral mastix molding die of claim 1, wherein: ​

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