Guiding and positioning device for part casting machining
By setting the leftover processing guidance mark of the oblique chamfer structure on the casting blank, the upper plane quality problem caused by over-processing of the bottom plane margin during casting is solved, and the upper plane quality is improved and the rework rate is reduced.
Patent Information
- Application Number
- CN202421185639.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-28
- Publication Date
- 2025-02-18
- Estimated Expiration
- 2034-05-28
AI Technical Summary
During the casting process, over-processing of the bottom plane margin results in relatively poor quality of the upper plane, and the defects cannot be removed through processing, which increases the repair rate and possible scrapping.
Design a guide positioning device for casting processing of parts, and set the limit processing guidance mark of the oblique chamfer structure on the blank to ensure sufficient processing volume on the upper plane, and make the casting blank with limit processing mark through mold molding and casting. .
By guiding the upper plane margin processing of casting, we ensure the improvement of the upper plane quality, reduce the welding retrieval and repair rate, and reduce the risk of scrapping.
Smart Images
Figure CN222492134U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of positioning devices, in particular to a guiding positioning device for parts casting processing. Background Art
[0002] Casting, commonly known as sand casting, is a method of pouring liquid metal into a mold cavity that is adapted to the shape and size of the part, and obtaining a blank of a certain shape after it cools and solidifies. During the pouring and solidification process, since the specific gravity of the molten metal is greater than that of sand and slag, sand holes, bubbles and slag inclusions tend to float to the upper surface of the casting; and due to the relationship between gravity and shrinkage compensation, the structure of the bottom plane is denser, and the upper casting plane is relatively prone to defects such as subcutaneous looseness. Therefore, the placement of machining allowance is very particular. The principle is that the surface that needs to be processed must have an allowance. Usually, the upper plane has the largest allowance, followed by the side, and finally the bottom plane.
[0003] However, the processing department often has no concept of casting process or easy processing, and often the bottom plane is over-processed, resulting in less residual processing allowance for the upper plane of relatively poor quality. During this period, the defects of the upper plane exposed cannot be removed by processing due to insufficient allowance, which increases the rework rate of the casting and may even lead to scrapping. Therefore, a guiding and positioning device for part casting processing is proposed. Utility Model Content
[0004] 1. Technical issues to be solved
[0005] In view of the deficiencies of the prior art, the utility model provides a guiding and positioning device for parts casting processing to solve the problems raised in the above background technology.
[0006] (II) Technical solution
[0007] To achieve the above purpose, the utility model provides the following technical solution: a guiding and positioning device for parts casting processing, comprising:
[0008] A blank, the blank comprising a part, a machining allowance and a machining guide mark for the allowance, the machining allowance being arranged outside the part, the machining guide mark for the allowance being arranged on the left side of the upper end of the machining allowance, and the machining guide mark for the allowance being in an oblique chamfer structure;
[0009] The casting upper plane is arranged at the upper end of the blank;
[0010] The upper plane of the finished part is arranged at the upper end of the part; the chamfered surface is forty-five degrees with the upper plane of the casting, and the lower end of the excess processing guide mark is kept flush with the upper plane of the finished part, and the excess processing guide mark plays a warning and guiding role.
[0011] Preferably, a fixing bar is provided at the upper end of the blank, and the fixing bar is horizontally placed at the upper end of the blank, and the fixing bar is used to rest on the upper end of the blank.
[0012] Preferably, side panels are provided on both the front and rear sides of the lower end of the fixing bar, and the side panels are fixedly connected to the fixing bar.
[0013] Preferably, the side panels are arranged at the front and rear sides of the outer portion of the lower end blank of the fixing bar, and the side panels serve to improve the placement stability of the fixing bar.
[0014] Preferably, a processing identification plate is provided on the front side of the upper end of the fixing bar, and the processing identification plate is fixedly connected to the fixing bar.
[0015] Preferably, the inner hollow of the processing identification plate is provided with a processing identification, and the processing identification makes it easy to display the processing items of the blank.
[0016] (III) Beneficial effects
[0017] Compared with the prior art, the utility model provides a guiding and positioning device for parts casting processing, which has the following beneficial effects:
[0018] The utility model uses a casting blank made by mold molding and pouring, and its upper plane has obvious chamfer marks. When the casting blank is processed, the casting upper plane surplus processing is guided to at least make the chamfers flush, ensuring sufficient processing of the upper plane, thereby achieving the purpose of improving the casting upper plane quality and reducing the welding repair rate. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;
[0020] Figure 2 It is a cross-sectional view of the parts and machining allowance of the utility model;
[0021] Figure 3 It is a three-dimensional diagram of the structure of the signboard of the present utility model.
[0022] In the figure: 1. Part; 2. Allowance processing guide mark; 3. Processing allowance; 4. Casting upper plane; 5. Finished part upper plane; 6. Fixing strip; 7. Side panel; 8. Processing identification plate. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] The utility model provides a technical solution, a guiding and positioning device for parts casting processing, please refer to Figure 1 , Figure 2 and Figure 3 ,include:
[0025] The blank comprises a part 1, a machining allowance 3 and a machining allowance guide mark 2, wherein the machining allowance 3 is arranged outside the part 1, the machining allowance guide mark 2 is arranged on the left side of the upper end of the machining allowance 3, and the machining allowance guide mark 2 is in an oblique chamfer structure;
[0026] A casting upper plane 4 is arranged at the upper end of the blank;
[0027] The finished part upper plane 5 is arranged at the upper end of the part 1; the chamfered surface is at forty-five degrees to the casting upper plane 4, and the lower end of the excess machining guide mark 2 is kept flush with the finished part upper plane 5, and the excess machining guide mark 2 serves as a warning and guidance.
[0028] See also Figure 1 and Figure 3 A fixing bar 6 is provided at the upper end of the blank, and the fixing bar 6 is horizontally placed at the upper end of the blank, and the fixing bar 6 is used to rest on the upper end of the blank.
[0029] See also Figure 1 and Figure 3 Side panels 7 are provided on both the front and rear sides of the lower end of the fixing bar 6 , and the side panels 7 are fixedly connected to the fixing bar 6 .
[0030] See also Figure 1 and Figure 3 The side panels 7 are arranged at the front and rear sides of the outer portion of the lower end blank of the fixing bar 6 , and the side panels 7 serve to improve the placement stability of the fixing bar 6 .
[0031] See also Figure 1 and Figure 3 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 .
[0032] See also Figure 1 and Figure 3 The inner part of the processing identification plate 8 is hollowed out to be provided with a processing identification, and the processing identification makes it easy to display the processing items of the blank.
[0033] This solution: according to the drawing of part 1, allowances are placed on the processing surface and important surfaces, and chamfer marks are set on the upper plane. Secondly, a mold is made, and a casting cavity is formed by the mold, and then it is poured into a casting blank with allowance processing marks; finally, according to the processing marks, the processing amount specified by the upper plane is completed, and the processing identification plate 8 is placed on the upper end of the blank through the fixing bar 6 to prompt the content of the processing project.
[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A guiding and positioning device for parts casting processing, characterized in that: include: A blank, the blank comprising a part (1), a machining allowance (3) and a machining allowance guide mark (2), the machining allowance (3) being arranged outside the part (1), the machining allowance guide mark (2) being arranged on the left side of the upper end of the machining allowance (3), and the machining allowance guide mark (2) being in an oblique chamfer structure; A casting upper plane (4) is arranged at the upper end of the blank; The finished product upper plane (5) is arranged on the upper end of the part (1); The chamfered surface is at a forty-five degree angle with the upper plane (4) of the casting, and the lower end of the excess machining guide mark (2) is kept flush with the upper plane (5) of the finished part.
2. A guiding and positioning device for parts casting processing according to claim 1, characterized in that: A fixing bar (6) is arranged at the upper end of the blank, and the fixing bar (6) is horizontally placed at the upper end of the blank.
3. A guiding and positioning device for parts casting processing according to claim 2, characterized in that: Side panels (7) are provided on both the front and rear sides of the lower end of the fixing strip (6), and the side panels (7) are fixedly connected to the fixing strip (6).
4. A guiding and positioning device for parts casting processing according to claim 3, characterized in that: The side panels (7) are arranged on the front and rear sides of the outer portion of the lower end blank of the fixing strip (6).
5. A guiding and positioning device for parts casting processing 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. A guiding and positioning device for parts casting processing according to claim 5, characterized in that: The processing identification plate (8) is hollowed out inside and provided with a processing identification.