Guiding and positioning device for part casting machining
By introducing a chamfered structure and a guide and positioning device with a sign in the casting process, the problem of loose surface on the casting was solved, the processing quality and efficiency were improved, and the rework rate was reduced.
Patent Information
- Application Number
- CN202410673396.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-28
- Publication Date
- 2025-11-28
AI Technical Summary
In current casting processes, subsurface porosity defects are prone to occur on the upper surface of castings, resulting in insufficient machining allowance, increasing the rework rate or scrap risk. Furthermore, the lack of casting process concept in the machining department often leads to overmachining of the bottom surface, affecting quality.
Design a guide and positioning device for casting and machining parts. By setting chamfered structures on the blank to provide machining allowance, and adding a fixing strip, combined with the mold shape, ensure that the upper surface has sufficient machining allowance. Machining identification signs are used to indicate machining items.
It improves the quality of the casting surface, reduces the rate of welding repairs, ensures sufficient machining allowance, and enhances processing efficiency and product quality.
Smart Images
Figure CN121017518A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of positioning devices, in particular to a guiding and positioning device for part casting processing. BACKGROUND
[0002] Casting, commonly known as sand casting, is a method of pouring liquid metal into a casting mold cavity that is suitable in shape and size for the part, and obtaining a certain shape blank after cooling and solidification. During pouring and solidification, because the specific gravity of the metal liquid is greater than that of the sand and slag, sand holes, bubbles and slag inclusions often float to the upper surface of the casting; due to gravity and the relationship of feeding, the bottom plane has a relatively dense structure, and the casting upper plane is prone to have loose skin defects. Therefore, the placement of the machining allowance is very important, and the principle is that the surface that needs to be machined should have a machining allowance, and the upper plane usually has the most machining allowance, followed by the side surface, and finally the bottom plane.
[0003] However, the processing department often does not have the concept of casting process or the processing is convenient, and the bottom plane allowance is often over-processed, resulting in a relatively poor upper plane with less machining allowance. The defects exposed on the upper plane during this period often cannot be removed by machining due to insufficient allowance, increasing the repair rate of the casting, and in severe cases, it may lead to scrap. Therefore, a guiding and positioning device for part casting processing is proposed. SUMMARY
[0004] (I) Technical problems solved
[0005] In view of the deficiencies in the prior art, the present application provides a guiding and positioning device for part casting processing to solve the problems raised in the background art.
[0006] (II) Technical solutions
[0007] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a guiding and positioning device for part casting processing, comprising:
[0008] a blank, the blank comprising a part, a machining allowance and a machining allowance guiding mark, the machining allowance being arranged on the outside of the part, the machining allowance guiding mark being arranged on the left side of the upper end of the machining allowance, and the machining allowance guiding mark being in an inclined chamfer structure;
[0009] a casting upper plane arranged at the upper end of the blank;
[0010] a finished part upper plane arranged at the upper end of the part; the chamfered inclined surface is at an angle of forty-five degrees with the casting upper plane, the lower end of the machining allowance guiding mark is flush with the finished part upper plane, and the machining allowance guiding mark plays a warning and guiding role.
[0011] Preferably, the upper end of the blank is provided with a fixing strip, the fixing strip is horizontally placed on the upper end of the blank, and the fixing strip is used to be placed on the upper end of the blank.
[0012] Preferably, the front and rear sides of the lower end of the fixing strip are provided with side plates, and the side plates are fixedly connected with the fixing strip.
[0013] Preferably, the side plates are arranged on the front and rear sides of the outer part of the blank at the lower end of the fixing strip, and the side plates play a role in improving the stability of the fixing strip.
[0014] Preferably, the front side of the upper end of the fixing strip is provided with a processing signboard, and the processing signboard is fixedly connected with the fixing strip.
[0015] Preferably, the inside of the processing signboard is hollowly provided with a processing mark, and the processing mark facilitates the display of the processing items of the blank.
[0016] (Three) beneficial effects
[0017] Compared with the prior art, the present application provides a guiding and positioning device for part casting processing, which has the following beneficial effects:
[0018] The casting blank made by mold modeling pouring has obvious bevel chamfer marks on the upper plane. When the casting blank is processed, the guiding casting upper plane excess processing at least needs to process the bevel chamfer to be flush, so as to ensure sufficient processing amount of the upper plane, so as to improve the quality of the casting upper plane and reduce the welding repair rate. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 It is a whole structure perspective view of the present application;
[0020] Figure 2 It is a part and processing excess sectional view of the present application;
[0021] Figure 3 It is a signboard structure perspective view of the present application.
[0022] In the figure: 1, part; 2, excess processing guiding mark; 3, processing excess; 4, casting upper plane; 5, finished product upper plane; 6, fixing strip; 7, side plate; 8, processing signboard. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0024] The application provides a technical scheme, a guiding and positioning device for part casting processing, please refer to Figure 1 、 Figure 2 and Figure 3 , comprising:
[0025] The blank includes a part 1, a processing allowance 3 and an allowance processing guide mark 2, the processing allowance 3 is arranged on the outside of the part 1, the allowance processing guide mark 2 is arranged on the left side of the upper end of the processing allowance 3, and the allowance processing guide mark 2 is in an inclined chamfer structure.
[0026] A casting upper plane 4 is arranged on the upper end of the blank.
[0027] A finished product piece upper plane 5 is arranged on the upper end of the part 1; the chamfered inclined plane is at an angle of 45 degrees with the casting upper plane 4, the lower end of the allowance processing guide mark 2 is flush with the finished product piece upper plane 5, and the allowance processing guide mark 2 plays a warning and guiding role.
[0028] Please refer to Figure 1 and Figure 3 , the upper end of the blank is provided with a fixed strip 6, the fixed strip 6 is horizontally placed on the upper end of the blank, and the fixed strip 6 is used to be placed on the upper end of the blank.
[0029] Please refer to Figure 1 and Figure 3 , the front and rear sides of the lower end of the fixed strip 6 are both provided with side plates 7, and the side plates 7 are fixedly connected with the fixed strip 6.
[0030] Please refer to Figure 1 and Figure 3 , the side plates 7 are arranged on the front and rear sides of the lower end of the fixed strip 6 outside the blank, and the side plates 7 play a role in improving the stability of the fixed strip 6.
[0031] Please refer to Figure 1 and Figure 3 , the front side of the upper end of the fixed strip 6 is provided with a processing signboard 8, and the processing signboard 8 is fixedly connected with the fixed strip 6.
[0032] Please refer to Figure 1 and Figure 3 , the inside of the processing signboard 8 is provided with a processing mark in a hollow manner, and the processing mark facilitates the display of the processing items of the blank.
[0033] The scheme: according to the drawing of the part 1, the processing allowance is placed on the processing surface and the important surface, and the inclined chamfer mark is arranged on the upper plane, then the mold is made, the mold modeling is used to form the casting cavity, and the blank of the casting part with the allowance processing mark is poured; finally, according to the processing mark, the processing amount specified on the upper plane is completed, the processing signboard 8 is placed on the upper end of the blank through the fixed strip 6, so as to prompt the processing item content.
[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A guiding and positioning device for casting and machining parts, characterized in that, include: The blank includes a part (1), a machining allowance (3) and a machining guide mark (2). The machining allowance (3) is located on the outside of the part (1), and the machining guide mark (2) is located on the left side of the upper end of the machining allowance (3). The machining guide mark (2) has a chamfered structure. Cast the upper surface (4), which is set at the upper end of the blank; The upper surface (5) of the finished part is set at the upper end of the part (1); The chamfered bevel is at a 45-degree angle to the upper surface of the casting (4), and the lower end of the allowance machining guide mark (2) is flush with the upper surface of the finished part (5).
2. The guiding and positioning device for casting and machining parts according to claim 1, characterized in that: A fixing strip (6) is provided at the upper end of the blank, and the fixing strip (6) is placed horizontally at the upper end of the blank.
3. The guiding and positioning device for casting and machining parts according to claim 2, characterized in that: Side plates (7) are provided on both the front and rear sides of the lower end of the fixing strip (6), and the side plates (7) are fixedly connected to the fixing strip (6).
4. The guiding and positioning device for casting and machining parts according to claim 3, characterized in that: The side plate (7) is located on the front and rear sides of the lower end blank of the fixing strip (6).
5. The guiding and positioning device for casting and machining parts according to claim 4, characterized in that: A processing identification plate (8) is provided on the front side of the upper end of the fixing strip (6), and the processing identification plate (8) is fixedly connected to the fixing strip (6).
6. The guiding and positioning device for casting and machining parts according to claim 5, characterized in that: The processing identification plate (8) has a processing identification mark inside its hollowed-out design.