... 29.8.6.Thời gian nguyên cônggiacông 4 lỗ bắt vít. 29.8.7.Thời gian nguyên cônggiacông lỗ cấp dầu bôi trơn. 30.9.Tính đồ gá giacông nguyên công tiện lỗ 100. 30.Tính sai số cho phép của đồ gá. ... trọng.Ta có chitiếtgiacông và đế để định vị chitiết có tính chất đối xứngnên trọng tâm của chitiết nằm trên đờng đi qua tâm của chitiết nên ta31 KN: Hệ số phụ thuộc vật liệu giacông tra ... tính công nghệ của chi tiết. Chi tiết cần giacông là chitiết dạng hộp, dođó chuẩn tinh chính làmột mặt phẳng và 2 lỗ vuông góc với mặt phẳng đó. Với chitiết của tathì ta nhận thấy tính công...
... thấy giáđỡ là chitiết dạng hộpDo giáđỡ là loại chitiết quan trọng trong một sản phẩm có lắp trục. Giá đỡ làm nhiệm vụ đỡ trục của máy và xác định vị trí tương đối của trụctrong không gian ... Đồán môn học Công Nghệ Chế Tạo Máy Sinh viên: Bùi Hồng Chính ĐỒ ÁN MÔN HỌCCÔNG NGHỆ CHẾ TẠO MÁYI. PHÂN TÍCH CHỨC NĂNG, ĐIỀU KIỆN LÀM VIỆC CỦA CHI TIẾTDựa vào bản vẽ chitiết ta ... Saukhi giacông xong giáđỡ sẽ được lắp bạc đồng hai nửa để lắp và làmnhiệm vụ đỡ trục.Trên giáđỡ có nhiều mặt phải giacông với độ chính xác khác nhau vàcũng có một số bề mặt không phải gia công. ...
... lực kẹp ép bề mặt trụ ngoài của chitiết sátvào mặt khối V5.1.5 Chọn máy: - Dogiacông thô nên t,s cần lớn để làm giảm thời gian gia công. - Chọn máy phay ngang công xôn 6H12 [chế độ cắt GC CK,tr ... D=200 mm phí tổn chế tạo chitiết kể từ công đoạn chế tạo phôi cho tới công đoạn gia công chitiết phải thấp nhất.Khi xác định loại phôi và phương pháp chế tạo phôi cho chitiết ta cần phảiquan ... trường hợp sau khicán không cần phải giacông cơ tiếp theo, điều đó đặc biệt quan trọng khi chếtạo các chitiết bằng thép và hợp kim khó gia công, đắt tiền.=> ;Chi tiếtgiá đẫõn hướng có hình...
... tạo chi tiết, đồng thời tổng phí tổn chế tạo chitiết kể từ công đoạn chế tạo phôi cho tới công đoạn giacôngchi tiết phải thấp nhất Khi xác định loại phôi và phương pháp chế tạo phôi cho chi ... ) Dođóchitiết được khống chế 6 bậc tự do - Sơ đồ định vị: - Máygia công: Máy phay đứng 6H82 + Bề mặt làm việc của bàn: 320 x 1250 mm2 Đồán môn học Công Nghệ Chế Tạo Máy GVHD: ... côngchitiếtgiá đỡ 2. Số liệu đồ án: -Bản vẽ chitiết -Sản lượng : 10000 chi c/năm 3. Nội dung các phần thuyết minh và tính toán: 4.Các bản vẽ :19 bản vẽ A3 ,1A2 5.Ngày giao...
... Với cung cong cần giacông của chitiết sẽ khó gia công, cần một loại đồ gá đặc biệt. Chi tiết có một số bề mặt không cần giacông cắt gọt.Các bề mặt cần gia công: 1. Giacông 2 mặt phẳng B1, ... em hoàn thành đồán này.ĐỒ ÁN MÔN HỌCCÔNG NGHỆ CHẾ TẠO MÁYI. PHÂN TÍCH CHỨC NĂNG, ĐIỀU KIỆN LÀM VIỆC CỦA CHITIẾT Chi tiết C3 la chitiết dạng càng, dùng để gạt những chitiết khác đến vị ... CTK47 Đồán môn học Công Nghệ Chế Tạo Máy II. PHÂN TÍCH TÍNH CÔNG NGHỆ TRONG KẾT CẤU CHI TIẾTDựa vào bản vẽ ta thấy:C3 là một chitiết dạng càng phức tạp, với nhiều bề mặt cần phải gia công...
... nhám.* Kẹp chặt: dùng cơ cấu kẹp bằng ren để kẹp chitiết từ mặt đầu của chi tiết vuông góc với mặt gia công. Chọn máy: máy phay đứng 6H10. Công suất máy Nm = 7 KWChọn dao : Dao phay mặt đầu có ... khoa giao cho nhiệm vụ làm đồán môn học với đề tài: Thiết kế quy trình công nghệ giacôngchitiết “Thân đồ gá ”. Sau khi nhận được đề tài được sự hướng dẫn chỉbảo tận tình của các thầy cô giáo, ... Khoa Cơ Khí13 ĐồÁn Môn Học Công Nghệ Chế Tạo Máy [δ]bu = 320 MpaII. Phân tích tính công nghệ trong kết cấu của chi tiết Từ bản vẽ chitiết ta thấy :- Mặt trên của thân đồ gá có đủ độ...
... MSSV:09203063 ĐồÁnCông Nghệ Chế Tạo Máy GVHD: NGUYỄN PHI TRUNG1 9810 1135276412IV.Các phương ángia công: ?7SVTH: NGUYỄN CHÍ TRUNG MSSV:09203063 ĐồÁnCông Nghệ Chế Tạo Máy GVHD: NGUYỄN ... XF9=22C9=?ZŽYdpGUY@aV€0A[MVU01@JNJ0A@;V=:;I~@NaFR4C0>Tphương ángiacông 1R?8SVTH: NGUYỄN CHÍ TRUNG MSSV:09203063 ĐồÁnCông Nghệ Chế Tạo Máy GVHD: NGUYỄN PHI TRUNG BỘ GIÁO DỤC VÀ ĐÀO TẠO CỘNG HÒA XÃ HỘI CHỦ ... $GepGURny>2e2FpGUH1[—\!Tp;H1Ho—\!TpdH1[?RIII. Các phương ángia công: ?6SVTH: NGUYỄN CHÍ TRUNG MSSV:09203063 ĐồÁnCông Nghệ Chế Tạo Máy GVHD: NGUYỄN PHI TRUNGRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRj=02JNEMỤC...
... tạo chi tiết, đồng thời tổng phí tổn chế tạo chitiết kể từ công đoạn chế tạo phôi cho tới công đoạn giacôngchitiết phải thấp nhất.Khi xác định loại phôi và phương pháp chế tạo phôi cho chi ... PHƯƠNG PHÁP GIA CÔNG TA CHỌN RA TRÌNH TỰ GIACÔNG VÀ SƠ ĐỒ ĐỊNH VỊ NHƯ SAU:Phương án 1STTNguyên công Bề mặt gia công Bề mặt định vị Máy Ghi chú1Phay thô + tinh11 17, ngoài Máy phay đứng ... đóchitiết được khống chế 6 bậc tự do- Sơ đồ định vị:- Máygia công: SVTH : HỒ NGỌC NAM Trang 30 Đồán môn học Công Nghệ Chế Tạo Máy GVHD: LÊ TRUNG THỰCCHƯƠNG VII : PHIẾU TỔNG HP NGUYÊN CÔNGSTTNộidungbướcSơ...
... của chi tiết; thời gian này có thể đợc thựchiện bằng máy hoặc bằng tay và trong từng trờng hợp giacông cụ thể có công thức tính tơng ứng).Tp - Thời gian phụ ( thời gian cần thiết để ngời công ... nào đó, còn tất cả các bề mặt gia công khác của chitiết thì tra theo Sổ tay Công nghệ [7].Nguyên công tính chế độ cắt( trùng nguyên công thiết kế đồ gá): Nguyên công 9 Phay rÃnh phân phối nhiên ... ngời công nhân gá, tháo chi tiết, mở máy, chọn chế độ cắt, dịch chuyển ụ dao và bàn máy, kiểm tra kíchthớc của chitiết ). Khi xác định thời gian nguyên công ta có thể giá trị gầnđúng Tp =...
... của đồ gá. Hình chi u thứ nhất của chitiết phảI đợc thể hiện đúng vị trí đang giacông trên máy. 26 Nội dung thuyết minh và tính toán Đồán môn học Công Nghệ Chế Tạo Máy 1. Phân tích chức ... k2=19 - Nếu chitiết đợc giacông bằng dao định hình và dao định kích thớc thì sai số của đồ gá không ảnh hởng đến kích thớc và sai số hình dáng của bề mặt gia công. - Khi giacông bằng phiến ... của chi tiết: Theo đề bài thiết kế: Thiết kế qui trình công nghệ chế tạo chitiết tay biên với sản lợng 8000 chi tiết/ năm, điều kiện sản xuất tự do.Tay biên là một dạng chitiết trong họ chi...