đồ án gia công chi tiết giá đỡ máy bào

... 29. 8.6.Thời gian nguyên công gia công 4 lỗ bắt vít. 29. 8.7.Thời gian nguyên công gia công lỗ cấp dầu bôi trơn. 30. 9.Tính đồ gá gia công nguyên công tiện lỗ 100. 30. Tính sai số cho phép của đồ gá. ... trọng. Ta có chi tiết gia công và đế để định vị chi tiết có tính chất đối xứng nên trọng tâm của chi tiết nằm trên đờng đi qua tâm của chi tiết nên ta 31 K N : Hệ số phụ thuộc vật liệu gia công tra ... tính công nghệ của chi tiết. Chi tiết cần gia công là chi tiết dạng hộp, do đó chuẩn tinh chính là một mặt phẳng và 2 lỗ vuông góc với mặt phẳng đó. Với chi tiết của ta thì ta nhận thấy tính công...

... thấy giá đỡ là chi tiết dạng hộp Do giá đỡ là loại chi tiết 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 trục trong không gian ... Đồ án môn học  Công Nghệ Chế Tạo Máy Sinh viên: Bùi Hồng Chính ĐỒ ÁN MÔN HỌC CÔNG NGHỆ CHẾ TẠO MÁY I. PHÂN TÍCH CHỨC NĂNG, ĐIỀU KIỆN LÀM VIỆC CỦA CHI TIẾT Dựa vào bản vẽ chi tiết ta ... Sau khi gia công xong giá đỡ sẽ được lắp bạc đồng hai nửa để lắp và làm nhiệm vụ đỡ trục. Trên giá đỡ có nhiều mặt phải gia công với độ chính xác khác nhau và cũng có một số bề mặt không phải gia công. ...

... lực kẹp ép bề mặt trụ ngoài của chi tiết sát vào mặt khối V 5.1.5 Chọn máy: - Do gia công 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 chi tiết kể từ công đoạn chế tạo phôi cho tới công đoạn gia công chi tiết phải thấp nhất. Khi xác định loại phôi và phương pháp chế tạo phôi cho chi tiết ta cần phải quan ... trường hợp sau khi cán không cần phải gia công cơ tiếp theo, điều đó đặc biệt quan trọng khi chế tạo các chi tiết bằng thép và hợp kim khó gia công, đắt tiền. => ;Chi tiết giá đẫõn hướng có hình...

... tạo chi tiết, đồng thời tổng phí tổn chế tạo chi tiết kể từ công đoạn chế tạo phôi cho tới công đoạn gia công chi tiết phải thấp nhất Khi xác định loại phôi và phương pháp chế tạo phôi cho chi ... ) Do đó chi tiết được khống chế 6 bậc tự do - Sơ đồ định vị: - Máy gia công: Máy phay đứng 6H82 + Bề mặt làm việc của bàn: 320 x 1250 mm 2 Đồ án môn học Công Nghệ Chế Tạo Máy GVHD: ... công chi tiết giá đỡ 2. Số liệu đồ án: -Bản vẽ chi tiết -Sản lượng : 10000 chi c/năm 3. Nội dung các phần thuyết minh và tính toán: 4.Các bản vẽ :19 bản vẽ A 3 ,1A2 5.Ngày giao...

... Với cung cong cần gia công của chi tiết sẽ khó gia công, cần một loại đồ gá đặc biệt. Chi tiết có một số bề mặt không cần gia công cắt gọt. Các bề mặt cần gia công: 1. Gia công 2 mặt phẳng B1, ... em hoàn thành đồ án này. ĐỒ ÁN MÔN HỌC CÔNG NGHỆ CHẾ TẠO MÁY I. PHÂN TÍCH CHỨC NĂNG, ĐIỀU KIỆN LÀM VIỆC CỦA CHI TIẾT Chi tiết C3 la chi tiết dạng càng, dùng để gạt những chi tiết khác đến vị ... CTK4 7 Đồ án môn học  Công Nghệ Chế Tạo Máy II. PHÂN TÍCH TÍNH CÔNG NGHỆ TRONG KẾT CẤU CHI TIẾT Dựa vào bản vẽ ta thấy: C3 là một chi tiết dạng càng phức tạp, với nhiều bề mặt cần phải gia công...

... nhám. * Kẹp chặt: dùng cơ cấu kẹp bằng ren để kẹp chi tiết từ mặt đầu của chi tiết vuông góc với mặt gia công. Chọn máy: máy phay đứng 6H10. Công suất máy N m = 7 KW Chọn dao : Dao phay mặt đầu có ... khoa giao cho nhiệm vụ làm đồ án môn học với đề tài: Thiết kế quy trình công nghệ gia công chi tiết “Thân đồ gá ”. Sau khi nhận được đề tài được sự hướng dẫn chỉ bảo tận tình của các thầy cô giáo, ... Khoa Cơ Khí 13 Đồ Án Môn Học Công Nghệ Chế Tạo Máy [ δ ] bu = 320 Mpa II. Phân tích tính công nghệ trong kết cấu của chi tiết Từ bản vẽ chi tiết ta thấy : - Mặt trên của thân đồ gá có đủ độ...

... MSSV:09203063 Đồ Án Công Nghệ Chế Tạo Máy GVHD: NGUYỄN PHI TRUNG 1 98 10 11 3 5 2 7 6 4 12 IV.Các phương án gia công: ?7 SVTH: NGUYỄN CHÍ TRUNG MSSV:09203063 Đồ Án Công Nghệ Chế Tạo Máy GVHD: NGUYỄN ... X F9=22C9=?ZŽYdpGUY@aV€ 0A[MVU01@JNJ0A@;V=:;I~@NaFR4C0>T phương án gia công 1R ?8 SVTH: NGUYỄN CHÍ TRUNG MSSV:09203063 Đồ Án Công Nghệ Chế Tạo Máy GVHD: NGUYỄN PHI TRUNG BỘ GIÁO DỤC VÀ ĐÀO TẠO CỘNG HÒA XÃ HỘI CHỦ ... $GepGUR ny>2e2FpGUH1[—\!Tp;H1Ho —\!TpdH1[?R III. Các phương án gia công: ?6 SVTH: NGUYỄN CHÍ TRUNG MSSV:09203063 Đồ Án Công Nghệ Chế Tạo Máy GVHD: NGUYỄN PHI TRUNG RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR RRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRRR  j=02JNE MỤC...

... tạo chi tiết, đồng thời tổng phí tổn chế tạo chi tiết kể từ công đoạn chế tạo phôi cho tới công đoạn gia công chi tiết 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 GIA CÔNG VÀ SƠ ĐỒ ĐỊNH VỊ NHƯ SAU: Phương án 1 ST T Nguyên công Bề mặt gia công Bề mặt định vị Máy Ghi chú 1 Phay thô + tinh 11 17, ngoài Máy phay đứng ... đó chi tiết được khống chế 6 bậc tự do - Sơ đồ định vị: - Máy gia công: SVTH : HỒ NGỌC NAM Trang 30 Đồ án môn học Công Nghệ Chế Tạo Máy GVHD: LÊ TRUNG THỰC CHƯƠNG VII : PHIẾU TỔNG HP NGUYÊN CÔNG S T T Nội dung bước Sơ...

... của chi tiết; thời gian này có thể đợc thực hiện bằng máy hoặc bằng tay và trong từng trờng hợp gia công cụ thể có công thức tính tơng ứng). T p - Thời gian phụ ( thời gian cần thiết để ngời công ... nào đó, còn tất cả các bề mặt gia công khác của chi tiết 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 kích thớc của chi tiết ). Khi xác định thời gian nguyên công ta có thể giá trị gần đúng T p =...

... của đồ gá. Hình chi u thứ nhất của chi tiết phảI đợc thể hiện đúng vị trí đang gia công trên máy. 26 Nội dung thuyết minh và tính toán Đồ án môn học Công Nghệ Chế Tạo Máy 1. Phân tích chức ... k 2 =1 9 - Nếu chi tiết đợc gia công 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 gia công bằng phiến ... của chi tiết: Theo đề bài thiết kế: Thiết kế qui trình công nghệ chế tạo chi tiết tay biên với sản lợng 8000 chi tiết/ năm, điều kiện sản xuất tự do. Tay biên là một dạng chi tiết trong họ chi...