DESAIN MESIN LINE BORING MENGGUNAKAN METODE REVERSE ENGINEERING SESUAI KEBUTUHAN USER

LINE BORING MACHINE DESIGN USING REVERSE ENGINEERING METHOD ACCORDING TO USER NEEDS

Line boring adalah proses pengeboran dua buah lubang atau lebih dalam satu komponen supaya mempunyai diameter sama dan sumbu aksial saling memotong (inline/intersect). Contoh pengerjaan ini terdapat pada lubang pin komponen arm dan bucket ekskavator. PT SMS selalu mengerjakan line boring pada produk tersebut dengan menggunakan mesin line boring manual. Kendala yang dialami dalam pengerjaan ini adalah pengoperasian manual, sehingga diperlukan penelitian tentang perancangan mesin line boring semi otomatis sesuai kebutuhan user dengan basis metode reverse engineering. Adapun tahapan penelitian ini, pertama adalah mengamati cara kerja mesin line boring perusahaan, mencari informasi mekanisme mesin yang beredar dipasaran. Mengidentifkasi mesin perusahaan meliputi mekanisme gerak mesin, komponen dan fungsinya. Membuat mekanisme mesin line boring semi otomatis yang berbeda dengan mekanisme mesin yang beredar di pasaran. Dilanjutkan dengan perancangan dan pemodelan mesin line boring semi otomatis dengan bantuan software Solidworks 2014. Bagian akhir penelitian ini adalah analisa desain berupa Interference Detection dan Motion Study pada unit-unit mekanisme mesin line boring semi otomatis. Pada hasil penelitian, desain mesin telah dilakukan simulasi interference detection dan motion study menggunakan Solidworks 2014. Uji interference detection terakhir menunjukan tidak adanya kesalahan berupa tabrakan komponen rakitan. Hasil motion study menunjukan bahwa komponen-komponen mesin dengan dimensi yang dimiliki dapat melakukan gerak satu sama lain. Hal ini menandakan desain transmisi menghasilkan output rpm leadscrew dan gerakan maju pemakanan sesuai keinginan. Hasil motion study juga menunjukan ketika posisi netral tidak menggerakkan leadscrew sehingga tidak adanya laju pemakanan.

Line boring is the process of drilling two or more holes in one component so that they have the same diameter and inline/intersect axial axes. An example of this work is found in the pin holes of the excavator's arm and bucket components. PT SMS always works on line boring for these products using manual line boring machines. The constraint experienced in this work is manual operation, so research is needed on the design of semi-automatic line boring machines according to user needs on the basis of the reverse engineering method. As for the stages of this research, the first is to observe the workings of the company's line boring machines, looking for information on the mechanisms of machines circulating in the market. Identifying the company's machine includes the machine's motion mechanism, its components and functions. Making the mechanism of semi-automatic line boring machines that is different from the machines on the market. Followed by the design and modeling of semi-automatic line boring machines with the help of Solidworks 2014 software. The final part of this research is a design analysis in the form of Interference Detection and Motion Study on semi-automatic line boring machine units. In the research results, the engine design has been simulated for interference detection and motion study using Solidworks 2014. The latest interference detection test shows that there are no errors in the form of collisions of assembled components. The results of the motion study show that the engine components with their dimensions can move one another. This indicates the transmission design produces leadscrew rpm output and feed forward motion as desired. The results of the motion study also show that when the neutral position does not move the leadscrew so there is no infeed rate.