Positioning tool for assembling rear shell mold piece of 3-ton loading machine

Abstract

The utility model discloses a die assembling and positioning tool for a rear shell die piece of a 3-ton loading machine. An aluminum plate base is a square aluminum plate, and the side length of the aluminum plate base is larger than the outer diameter of a lower-layer die piece of the rear shell of the 3-ton loading machine. The number of the stand columns is two, the stand columns are cylindrical, the diameter of each stand column is matched with a hole of a middle-layer mold piece of a rear shell of the 3-ton loading machine so that the mold piece can be conveniently sleeved, the upper ends of the stand columns are small-diameter cylinders, the diameter of each stand column is matched with the inner diameter of a circular ring, the lower ends of the stand columns are in a flange shape, the stand columns are locked on the aluminum plate base through two screws, and the two stand columns are arranged in a left area and a right area. The two circular rings are respectively sleeved on the small-diameter cylinders at the upper ends of the two upright posts during working, and the outer diameter of each circular ring is matched with a hole of an upper-layer mold sheet of a rear shell of the 3-ton loading machine. The device is simple and compact in structure, low in manufacturing cost and convenient and efficient to operate, and solves the problem that the dimensional accuracy of a casting is affected by deformation of a mold sheet in the forming, demolding and blowing process and dislocation of the mold sheet in the subsequent mold assembling process in the prior art.

Description

TECHNICAL FIELD

[0001] The utility model relates to loader parts lost foam casting auxiliary device technical field, concretely relates to 3 tons loader rear shell mould piece group mould positioning frock. BACKGROUND

[0002] Adopting lost foam vacuum casting, because the modeling material does not use adhesive and sand core, greatly reduces the waste, and is called green casting. Because lost foam casting needs to adopt foam pattern, for the complex structure part such as 3 tons loader rear shell, its foam pattern cannot be integrally formed, and is commonly combined by upper, middle and lower three layers of mould pieces, and in actual operation, the piece processing of the white mould mould piece of each layer is carried out first, and then each layer of mould piece is bonded and combined. The existing problem is that: because the deformation of the white mould mould piece is inevitable in the forming and drying process, the misalignment between the mould pieces occurs when the mould pieces are combined manually, and finally the size precision of the casting is affected. Therefore, it is necessary to design a frock to position and fix the mould pieces before bonding. SUMMARY

[0003] The utility model discloses a kind of 3 tons loader rear shell mould piece group mould positioning frock with simple and compact structure, low manufacturing cost, convenient and efficient operation, solve the size precision of casting being affected by the deformation of mould piece in the forming demoulding blow process and the misalignment of subsequent mould piece group mould process in prior art.

[0004] To achieve the above object, the utility model 3 tons loader rear shell mould piece group mould positioning frock includes aluminium plate base 1, stand 2, circular ring 3 and screw 4;The aluminium plate base 1 is a square aluminium plate, and the side length is greater than the outer diameter of 3 tons loader rear shell lower layer mould piece 5;The stand 2 is provided with two, and is cylindrical, and its diameter is matched with the hole of 3 tons loader rear shell middle layer mould piece 6 to facilitate the sleeve of mould piece into stand 2, the upper end of this stand 2 is small-diameter cylinder, and its diameter is matched with the inner diameter of circular ring 3, the lower end of stand 2 is flange-shaped, and two screws 4 are locked on the aluminium plate base 1, and the two stands 2 are arranged in left and right two areas;The circular ring 3 is provided with two, and is respectively sleeved on the upper end small-diameter cylinder of two stands 2 when working, and the outer diameter of this circular ring 3 is matched with the hole of 3 tons loader rear shell upper layer mould piece 7.

[0005] The utility model 3 tons loader rear shell mould piece group mould positioning frock has the following technical features and beneficial effects:

[0006] 1, after mould piece group mould bonding, it can ensure that the size precision of mould piece meets the requirements, and solve the size precision of casting being affected by the deformation of 3 tons loader rear shell mould piece in the forming demoulding blow process and the misalignment of subsequent mould piece group mould process in prior art.

[0007] 2. This fixture uses screws to fix two columns to an aluminum plate base. It has a simple and compact structure, low manufacturing cost, and is convenient and efficient to use. Attached Figure Description

[0008] Figure 1 This is a top view schematic diagram of the positioning tooling for the rear shell module assembly of a 3-ton loader according to this utility model.

[0009] Figure 2 yes Figure 1 Schematic diagram of the AA section structure.

[0010] Figure 3 This is a top view of the working state of the positioning tooling for the rear shell module assembly of a 3-ton loader according to this utility model.

[0011] Figure 4 yes Figure 3 Schematic diagram of the cross-sectional structure of the middle BB.

[0012] Attached reference numerals: 1. Aluminum plate base; 2. Column; 3. Ring; 4. Screw; 5. Lower layer module of the rear housing of the 3-ton loader; 6. Middle layer module; 7. Upper layer module. Detailed Implementation

[0013] The specific implementation method of the positioning tooling for the rear shell module assembly of the 3-ton loader of this utility model will be further described in detail below with reference to the accompanying drawings.

[0014] Figures 1-4 As shown, the positioning fixture for the rear housing module assembly of a 3-ton loader includes an aluminum plate base 1, columns 2, rings 3, and screws 4. The aluminum plate base 1 is a square aluminum plate with a side length greater than the outer diameter of the lower module 5 of the 3-ton loader's rear housing. Two columns 2 are provided, cylindrical in shape, with their diameters matching the holes in the middle module 6 of the 3-ton loader's rear housing to facilitate the module fitting into the columns 2. The upper end of the column 2 is a small-diameter cylinder, the diameter of which matches the inner diameter of the ring 3. The lower end of the column 2 is flange-shaped. The columns 2 are locked onto the aluminum plate base 1 by two screws 4, and the two columns 2 are arranged in two left and right areas. Two rings 3 are provided, which are respectively fitted onto the small-diameter cylinders at the upper ends of the two columns 2 during operation. The outer diameter of the rings 3 matches the holes in the upper module 7 of the 3-ton loader's rear housing.

[0015] like Figures 3-4 As shown, the operation of the positioning fixture for the rear shell module assembly of the 3-ton loader of this utility model during deformation correction is as follows:

[0016] 1. First, use hot melt adhesive to bond the lower mold 5 and the middle mold 6 of the rear shell of the 3-ton loader together. Then, insert the assembled lower mold 5 and the middle mold 6 of the rear shell of the 3-ton loader into the column 2 and place them on the aluminum plate base 1.

[0017] 2. Put two rings 3 on the upper end of two columns 2 respectively;

[0018] 3. Put two round holes of the upper die 7 on two rings 3;

[0019] 4. Fix the upper die 7 and the middle die 6 with hot melt glue, i.e. complete the die assembly bonding;

[0020] 5. After the die assembly bonding, take out two rings 3, and then take out the die assembly;

[0021] 6. Repeat the above steps to deform and correct the next die and die assembly.

Claims

1. A 3 ton loader rear housing die set positioning fixture characterized by: It includes aluminum plate base (1), stand (2), round ring (3) and screw (4); the aluminum plate base (1) is a square aluminum plate, and the side length is greater than the outer diameter of the lower layer mould piece (5) of the rear shell of 3-ton loader; the stand (2) is provided with two, is cylindrical, and the diameter is matched with the hole of the middle layer mould piece (6) of the rear shell of 3-ton loader to facilitate the mould piece to be sleeved into the stand (2), the upper end of the stand (2) is a small-diameter cylinder, the diameter is matched with the inner diameter of the round ring (3), the lower end of the stand (2) is flange-shaped, the stand (2) is locked on the aluminum plate base (1) through two screws (4), and the two stands (2) are arranged in left and right two areas; the round ring (3) is provided with two, and the upper end small-diameter cylinder of the two stands (2) is sleeved in the working time, and the outer diameter of the round ring (3) is matched with the hole of the upper layer mould piece (7) of the rear shell of 3-ton loader.

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