Method for fixing wax pattern module and ceramic pouring cup for shell making of investment casting manipulator

Abstract

The invention belongs to the field of precision investment casting, and particularly relates to a method for fixing a wax pattern module and a ceramic pouring cup for shell making of an investment casting manipulator. According to the technical scheme, according to the fixing method for the wax mold module and the ceramic pouring cup for investment casting mechanical arm shell making, an annular clamping groove is formed in the outer edge of the upper end face of the wax mold module for mechanical arm shell making, and the small end of the ceramic pouring cup and the upper end face of the wax mold module are clamped together through the annular clamping groove; and the small end of the ceramic pouring cup is bonded with the wax mold module through bonding wax. According to the fixing method for the wax mold module and the ceramic pouring cup for shell making of the investment casting manipulator, the problems that a prefabricated pouring cup and a shell making module crack and fall off are solved, the qualification rate of a mold shell can be increased, the production cost can be reduced, and the production efficiency can be improved.

Description

Technical Field

[0001] The invention belongs to the field of investment casting, and in particular relates to a method for fixing a wax mold module and a ceramic pouring cup of an investment casting robot shell. Background Art

[0002] The structural features of the high-temperature alloy thin-walled parts of aircraft engine tail nozzles are complex grid-shaped, multi-ribbed thin-walled parts. However, in the process of manual shell making, there are factors of human operation fluctuations, the quality consistency of the shell is poor, and the shell is prone to defects such as shell bulging, peeling, and cracking.

[0003] With the continuous increase in new aircraft engine development projects, the tail nozzle area has an increasing demand for high-temperature alloy thin-walled parts. In order to reduce the human influence factors of manual shell making, maintain the consistency of shell quality, and reduce labor intensity, robot shell making is the general trend. Robot shell making has high efficiency, high precision, flexibility, repeatable programming, strong adaptability, and minimizes human influence factors.

[0004] The ceramic pouring cup has good heat resistance and can withstand a certain range of temperature changes, ensuring its stability in use. The ceramic pouring cup is made of fine porcelain clay with a fine texture, smooth surface, no peeling or falling off.

[0005] However, the fixing method of the shell making module and the ceramic pouring cup has always been a problem. The position consistency and coaxiality of the ceramic pouring cup and the shell making module are poor, and the fixing method is not strong. Problems such as cracking and falling off of the ceramic pouring cup and the shell making module often occur. Summary of the invention

[0006] The invention provides a method for fixing a wax mold module and a ceramic pouring cup for shell making by an investment casting robot, which solves the problem of cracking and falling off of a prefabricated pouring cup and a shell making module, can improve the mold shell qualification rate, reduce production costs, and improve production efficiency.

[0007] The technical solution of the present invention is as follows:

[0008] A method for fixing a wax mold module and a ceramic pouring cup for a shell made by an investment casting robot. An annular groove is provided on the outer edge of the upper end surface of the wax mold module for the shell made by the robot. The small end of the ceramic pouring cup and the upper end surface of the wax mold module are clamped together through the annular groove; the small end of the ceramic pouring cup and the wax mold module are bonded by bonding wax.

[0009] Furthermore, in the method for fixing the wax mold module and the ceramic pouring cup of the investment casting robot shell, the height of the annular groove is 4-6mm.

[0010] Furthermore, in the method for fixing the wax mold module of the investment casting robot shell and the ceramic pouring cup, a rubber pad is provided at the large end of the ceramic pouring cup.

[0011] Furthermore, in the method for fixing the wax mold module and the ceramic pouring cup of the investment casting robot shell, a through hole is provided at the center of the rubber pad, and a connecting rod installed on the wax mold module passes through the through hole.

[0012] The beneficial effects of the present invention are as follows: the small end of the ceramic pouring cup of the present invention is clamped together with the upper end surface of the wax mold module through the annular clamping groove to form an assembly fixing relationship, which not only ensures the coaxiality of the wax mold module and the ceramic pouring cup, but also plays a reinforcing role, solves the cracking and falling problems of the prefabricated pouring cup and the shell making module, can improve the qualified rate of the mold shell, reduce production costs, and improve production efficiency. The large end of the ceramic pouring cup is provided with a rubber pad, which can effectively prevent debris from entering, thereby ensuring the cleanliness of the cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is the front view of the wax model module;

[0014] Figure 2 It is a side cross-sectional view of the wax model module;

[0015] Figure 3 It is a schematic diagram of fixing the wax mold module and the ceramic pouring cup together;

[0016] Figure 4 It is a side view of the cross section of the wax mold module and the ceramic pouring cup fixed together. DETAILED DESCRIPTION

[0017] like Figure 1-4 As shown, a method for fixing the wax mold module and the ceramic pouring cup of a shell for an investment casting robot is provided. An annular groove 2 is provided on the outer edge of the upper end surface of the wax mold module 1 for the robot shell, and the height of the annular groove 2 is 5 mm. The small end of the ceramic pouring cup 3 and the upper end surface of the wax mold module 1 are clamped together through the annular groove 2; the small end of the ceramic pouring cup 3 and the wax mold module 1 are bonded by bonding wax; a rubber pad 4 is provided on the large end of the ceramic pouring cup 2, and a through hole is provided in the center of the rubber pad 4, and a connecting rod 5 installed on the wax mold module 1 passes through the through hole.

Claims

1. A method for fixing a wax mold module and a ceramic pouring cup for an investment casting robot shell, characterized in that: The outer edge of the upper end surface of the wax mold module of the robot shell is provided with an annular groove, and the small end of the ceramic pouring cup and the upper end surface of the wax mold module are clamped together through the annular groove; the small end of the ceramic pouring cup and the wax mold module are bonded by bonding wax.

2. The method for fixing the wax mold module and the ceramic pouring cup of the investment casting robot shell according to claim 1 is characterized in that: The height of the annular groove is 4-6 mm.

3. The method for fixing the wax mold module and the ceramic pouring cup of the investment casting robot shell according to claim 1 is characterized in that: The ceramic pouring cup has a rubber pad on the large end.

4. The method for fixing the wax mold module and the ceramic pouring cup of the investment casting robot shell according to claim 3 is characterized in that: A through hole is provided at the center of the rubber pad, and a connecting rod installed on the wax mold module passes through the through hole.

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