机械制图与计算机绘图习题集（21世纪技能创新型人才培养系列教材·机械设计制造系列）
本习题集作为《机械制图与计算机绘图》教材的配套习题集。本习题集以培养学生创新能力和综合素质为出发点，选题新颖，内容丰富，知识点覆盖全面，主要特点如下：（1）贯彻最新机械制图技术和制图国家标准。（2）按照知识点编撰，习题的编排由易到难，循序渐进，以适应不同专业和不同层次教学的要求。（3）习题灵活多变，具有一定的深度和广度，有利于拓宽学生的知识面。（4）习题与生产岗位实际紧密结合，有较强的针对性和实用性。（5）配套习题集答案，方便教师授课和学生学习。
作业一 线型练习
作业指导
一、图名
图名为“线型练习”
二、内容
按图形要求绘制各种线段。
三、目的
熟悉图幅、图线及字体等制图标准，初步掌握绘图仪器与工具的正确使用方法。
四、要求
1. 选用A4 幅面的图纸，鉴别图纸正反面，竖放，正确固定图纸，用正确的线型绘制图框线及标题栏。
2. 绘图比例1∶1，图面布置要匀称，同类图线应粗细一致，作图要准确。
3. 绘制同心圆时，应先画小圆在画大圆。
4. 绘制完底稿后要认真检查，再按图线标准描深。
5. 根据例图正确标注尺寸，字体工整。
6. 标题栏中的图名、校名用10 号字，日期用3.5 号字，其余均用5 号字书写。
7. 保持图面清洁。
Shipping Overview:
• Shipping: Standard Domestic Shipping within the United States charges USD 4.99. Standard International Shipping from United Kingdom, Germany and Japan to the United States charges 14.99.
• Order Processing: Please allow 1-2 business days for order processing and preparation before shipment.
• Domestic Shipping: Orders within the U.S. are shipped via USPS or FedEx, depending on the origin of the product. The average transit time is 3-7 business days.
• International Shipping: Currently, we only ship within the USA.
• Tracking Information: Every order is trackable. You will receive a tracking number once your order has been shipped. Products may be shipped from various global fulfillment centers.
Shipping Delays:
Please note that shipping times may vary due to factors beyond our control, such as weather conditions, natural disasters, or peak holiday periods. While we strive to ensure timely delivery, the exact arrival time cannot be guaranteed and is managed by the shipping carrier.
Shipping Options:
-
Standard Delivery: Most orders are shipped within 3-7 business days. Larger items may utilize LTL shipping for safe handling.
-
Handling Time: We handle shipments on business days (Monday - Friday), with a preparation time of 1-2 days.
-
Additional Charges: Some items require additional shipping charges due to their size, weight, or special handling. These charges are specified on the product pages and are not eligible for shipping discounts.
-
Exclusions: Gift cards, packaging, taxes, and prior purchases do not count toward the minimum purchase requirement for free shipping. This offer is valid only for shipments to U.S. addresses, including Puerto Rico.
Delivery Details:
-
Estimates: Standard shipping within the US typically takes 3-7 business days. These are estimates and not guarantees.
-
Shipping Restrictions: We ship to all 50 states, Washington, DC, U.S. territories, and APO/FPO/DPO addresses. Shipping options vary based on the delivery address.
-
Remote Areas: Shipments to remote areas may incur additional charges or require pickup from a nearby shipping partner’s location.
Shipping Confirmation:
You will receive a shipping confirmation email with a tracking number as soon as your order is dispatched. If you do not receive this email immediately, please be assured that your items will arrive within the estimated delivery window provided at checkout.
Order Modifications:
If you need to cancel or modify your order, please contact our customer support immediately.
Issues with Delivery:
If your order shows as delivered but you have not received it, please contact the shipping carrier directly to resolve the issue. For persistent problems, contact our customer service at cs@everymarket.com.
Customer Support:
Our team is available 24/7 to assist you with any questions or concerns regarding your order. We are committed to ensuring a smooth shopping experience.
Return & Refund Policy Overview
Please review our return and refund policies below to ensure a smooth transaction process.
Return Policy
-
Duration: You have 30 days from receiving your item to initiate a return.
-
Condition: Items must be unworn, unwashed, with original tags and packaging intact.
-
Shipping Costs: Customers are responsible for return shipping costs.
-
Packaging: Ensure returned items are well-packaged to avoid damage during transit.
-
Tracking: Use a trackable and insured shipping method as we are not liable for items lost or damaged on return.
-
Initiating a Return: Contact us at cs@everymarket.com to start your return. We will provide a return shipping label and instructions upon approval. Returns without prior approval will not be accepted.
How to Return
-
Method: Returns must be sent back by mail to the address provided in the return instructions.
Return Label
-
Defective Products: Return labels are provided for defective items.
-
Non-Defective Returns: Customers are responsible for obtaining their return shipping label.
Product Conditions for Return
-
Eligible Products: Returns are only accepted for items in new condition.
Nonreturnable Items
Certain items are not eligible for return:
-
Electronic devices after 30 days (e.g., computers, laptops, Kindles)
-
Gift cards, prepaid game cards
-
Perishable goods, live insects, some jewelry, some health and personal care items
-
Customized or personalized products
-
Items with special shipping restrictions
Refund Policy
-
Window: Eligible products may be returned within 30 days of delivery for a refund.
-
Refund Method: Refunds are processed to the original payment method or as store credit for items purchased with gift cards.
-
Processing Time: Refunds are processed within 3-5 business days after we receive the return; please allow additional time for shipping and bank processing.
Claims
Inspect your order upon arrival and report any defects, damages, or incorrect items immediately to allow us to address the issue. For claims, contact our support team with details of the issue.
Exchange Policy
For the quickest service, return your original item and place a new order for the desired product once your return is accepted.
Return Address
EveryMarket Customer Service 2101 E Terra Ln, O'Fallon, MO 63366
Customer Support
Available 24/7 for any questions or assistance needed:
-
Phone: +1 636-312-5925
-
Email: cs@everymarket.com
本习题集作为《机械制图与计算机绘图》教材的配套习题集。本习题集以培养学生创新能力和综合素质为出发点，选题新颖，内容丰富，知识点覆盖全面，主要特点如下：（1）贯彻最新机械制图技术和制图国家标准。（2）按照知识点编撰，习题的编排由易到难，循序渐进，以适应不同专业和不同层次教学的要求。（3）习题灵活多变，具有一定的深度和广度，有利于拓宽学生的知识面。（4）习题与生产岗位实际紧密结合，有较强的针对性和实用性。（5）配套习题集答案，方便教师授课和学生学习。
作业一 线型练习
作业指导
一、图名
图名为“线型练习”
二、内容
按图形要求绘制各种线段。
三、目的
熟悉图幅、图线及字体等制图标准，初步掌握绘图仪器与工具的正确使用方法。
四、要求
1. 选用A4 幅面的图纸，鉴别图纸正反面，竖放，正确固定图纸，用正确的线型绘制图框线及标题栏。
2. 绘图比例1∶1，图面布置要匀称，同类图线应粗细一致，作图要准确。
3. 绘制同心圆时，应先画小圆在画大圆。
4. 绘制完底稿后要认真检查，再按图线标准描深。
5. 根据例图正确标注尺寸，字体工整。
6. 标题栏中的图名、校名用10 号字，日期用3.5 号字，其余均用5 号字书写。
7. 保持图面清洁。
Shipping Overview:
• Shipping: Standard Domestic Shipping within the United States charges USD 4.99. Standard International Shipping from United Kingdom, Germany and Japan to the United States charges 14.99.
• Order Processing: Please allow 1-2 business days for order processing and preparation before shipment.
• Domestic Shipping: Orders within the U.S. are shipped via USPS or FedEx, depending on the origin of the product. The average transit time is 3-7 business days.
• International Shipping: Currently, we only ship within the USA.
• Tracking Information: Every order is trackable. You will receive a tracking number once your order has been shipped. Products may be shipped from various global fulfillment centers.
Shipping Delays:
Please note that shipping times may vary due to factors beyond our control, such as weather conditions, natural disasters, or peak holiday periods. While we strive to ensure timely delivery, the exact arrival time cannot be guaranteed and is managed by the shipping carrier.
Shipping Options:
-
Standard Delivery: Most orders are shipped within 3-7 business days. Larger items may utilize LTL shipping for safe handling.
-
Handling Time: We handle shipments on business days (Monday - Friday), with a preparation time of 1-2 days.
-
Additional Charges: Some items require additional shipping charges due to their size, weight, or special handling. These charges are specified on the product pages and are not eligible for shipping discounts.
-
Exclusions: Gift cards, packaging, taxes, and prior purchases do not count toward the minimum purchase requirement for free shipping. This offer is valid only for shipments to U.S. addresses, including Puerto Rico.
Delivery Details:
-
Estimates: Standard shipping within the US typically takes 3-7 business days. These are estimates and not guarantees.
-
Shipping Restrictions: We ship to all 50 states, Washington, DC, U.S. territories, and APO/FPO/DPO addresses. Shipping options vary based on the delivery address.
-
Remote Areas: Shipments to remote areas may incur additional charges or require pickup from a nearby shipping partner’s location.
Shipping Confirmation:
You will receive a shipping confirmation email with a tracking number as soon as your order is dispatched. If you do not receive this email immediately, please be assured that your items will arrive within the estimated delivery window provided at checkout.
Order Modifications:
If you need to cancel or modify your order, please contact our customer support immediately.
Issues with Delivery:
If your order shows as delivered but you have not received it, please contact the shipping carrier directly to resolve the issue. For persistent problems, contact our customer service at cs@everymarket.com.
Customer Support:
Our team is available 24/7 to assist you with any questions or concerns regarding your order. We are committed to ensuring a smooth shopping experience.
Return & Refund Policy Overview
Please review our return and refund policies below to ensure a smooth transaction process.
Return Policy
-
Duration: You have 30 days from receiving your item to initiate a return.
-
Condition: Items must be unworn, unwashed, with original tags and packaging intact.
-
Shipping Costs: Customers are responsible for return shipping costs.
-
Packaging: Ensure returned items are well-packaged to avoid damage during transit.
-
Tracking: Use a trackable and insured shipping method as we are not liable for items lost or damaged on return.
-
Initiating a Return: Contact us at cs@everymarket.com to start your return. We will provide a return shipping label and instructions upon approval. Returns without prior approval will not be accepted.
How to Return
-
Method: Returns must be sent back by mail to the address provided in the return instructions.
Return Label
-
Defective Products: Return labels are provided for defective items.
-
Non-Defective Returns: Customers are responsible for obtaining their return shipping label.
Product Conditions for Return
-
Eligible Products: Returns are only accepted for items in new condition.
Nonreturnable Items
Certain items are not eligible for return:
-
Electronic devices after 30 days (e.g., computers, laptops, Kindles)
-
Gift cards, prepaid game cards
-
Perishable goods, live insects, some jewelry, some health and personal care items
-
Customized or personalized products
-
Items with special shipping restrictions
Refund Policy
-
Window: Eligible products may be returned within 30 days of delivery for a refund.
-
Refund Method: Refunds are processed to the original payment method or as store credit for items purchased with gift cards.
-
Processing Time: Refunds are processed within 3-5 business days after we receive the return; please allow additional time for shipping and bank processing.
Claims
Inspect your order upon arrival and report any defects, damages, or incorrect items immediately to allow us to address the issue. For claims, contact our support team with details of the issue.
Exchange Policy
For the quickest service, return your original item and place a new order for the desired product once your return is accepted.
Return Address
EveryMarket Customer Service 2101 E Terra Ln, O'Fallon, MO 63366
Customer Support
Available 24/7 for any questions or assistance needed:
-
Phone: +1 636-312-5925
-
Email: cs@everymarket.com
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