Development of multi-purpose collet chuck for vertical milling machine Harold N. Cariño...[et.al].

Thesis (Bachelor of Technology major in Mechanical and Production Technology) -- University of Rizal System-Morong.

EXECUTIVE SUMMARY: This study aimed to develop a Multi-Purpose Collet Chuck for Vertical Milling Machine. It was conducted at the University of Rizal System, Morong Campus in the school year 2015-2016. The researchers utilized an adapted-modified questionnaire-checklist to determine the level of acceptability of the developed Multi-Purpose Collet Chuck for Vertical Milling Machine. It was validated and accomplished by the respondents who provided information for the completion of the study. The result were tallied and computed for analysis. There were two groups of respondents who tested the acceptability of the project. The first group were consisted of five (5) experts who had the knowledge, skills and full awareness on the construction of the developed Multi-Purpose Collet Chuck Milling Machine while the other group consisted of fifteen (15) students who are taking Bachelor of Technology major in Mechanical and Production Technology at the same University. Qualitative description was used in developing the Multi-Purpose Collet Chuck for Vertical Milling Machine and weighted mean was used in determining the acceptability of the Multi-purpose collet chuck for vertical milling machine. To determine its significant difference between the evaluations made by the two groups of respondents, T-test was used. Based on the analysis and interpretation of data, the study revealed that, on the design and construction of the Multi-Purpose Collet Chuck for vertical milling machine, the researchers were able to design a well detailed assembly drawing, pictorial drawing and exploded drawing and constructed multi-purpose collet chuck for vertical milling machine out of locally available materials. Based on the analysis of the gathered data, the following findings are presented. On the design and construction of the project, the developed Multi-Purpose Collet Chuck for Vertical Milling Machine was designed, constructed and developed out of locally available materials. On the try-out and revisions made, the developed Multi-Purpose Collet Chuck for Vertical Milling Machine was tested for operation wherein different flaws and short comings were observed. Through try-out and revisions method the device reached the output's function and attained its objective. The findings revealed that, in terms of safety and maintenance, functionality, durability and usefulness as evaluated by the end-users and experts all variables are verbally interpreted as extremely acceptable. On the significant difference made by the experts and the students in terms of the above variables, this study found that, there is no significant difference on the evaluation made by the respondents in terms of safety and maintenance, functionality, durability and usefulness; hence the null hypothesis was accepted. Based on the findings, the study concluded that, there are no significant difference on the evaluation made by the respondents in terms of safety and maintenance, functionality, durability and usefulness. And, based on the foregoing findings and conclusions, the researchers recommended that, administrators of Universities or Colleges should encourage their students and instructors to develop and construct instructional machines, gadgets and other shop equipment. Assistance must be given to students undergoing similar research or study to defray the high cost of materials needed. Follow-up study may be conducted to improve the overall design of the device to increase its performance.