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2011年5月30日 星期一

How to Measure Electric Motor Torque

How to Measure Electric Motor Torque
By Raul Avenir, eHow Contributor
updated January 18, 2011

Quoted from: http://www.ehow.com/how_7810276_measure-electric-motor-torque.html

Torque refers to the rotational effect produced when force is applied to an object and is measured in Newton-meter (N.m) in metric system, or pound-feet in U.S. system. Electrical energy, measured in watts, can be used to produce torque, and an electric motor is a good example of electrical energy that can produce torque. Measuring electric motor torque requires using a formula.














A power screwdriver is a good example of electric motor torque.

Instructions
Things You'll Need: Calculator

1. Look at the owner's manual of the electric motor, or electrical appliance that has an electric motor (such as a power screwdriver). Find the rating of the motor in terms of volts, amperes, and rpm. Look at the manufacturer's nameplate or tag attached to the motor, or appliance in case there is no owner's manual.

2. Multiply the number of volts by the amperes to calculate the number of watts of the motor. For example, the number of watts of a power screwdriver with a rated voltage of 120 volts and 4 amperes is 480 watts (120 volts x 4.0 amps = 480 watts).

3. Divide the number of watts by 746 to get the horse power rating of the electrical motor. Using the example numbers, divide 480 watts by 746 to get the equivalent horsepower (480 watts divided by 746 = 0.6434316 horsepower).

4. Multiply the horsepower by 5,252 using a calculator. Using the example figure, multiply 0.6434316 by 5,252 to get 3,379.3027.

5. Divide the answer by the motor's rated number of rpm to get the measurement of the torque in pound-feet. Using the example figure, divide 3,379.3027 by 2,500 rpm to arrive at 1.351721 pound-feet of torque.

HIMAX Electric Screwdriver suggest: If you wanna use electric screwdrivers to assembly precise electronics, you'd better use digital torque meter to measure and adjust the torque of your electric tools to achieve accurate torque control.

Welcome to visit: www.ehimax.com

------------------------------------------------------------------------------------------------------------------------------------

HIMAX Electric Screwdriver www.ehimax.com is a professional electrical tool supplier in China since 2001. Like HIOS, Kilews, Delvo, Kolver, ASA, Conos and so on,  we are proficient in manufacturing electric screwdrivers. HIMAX Electric Screwdrivers are designed especially for the assembly line of  electronic products such as tablet, PC, laptop, digital camera, cell phone, game console, mobile devices and so on. HIMAX Electric Screwdriver possess accurate torque control to accomplish precision screw fasten tasks and can be used in automation system. Fastening small screws, electronic screw and miniature screw is what we are good at.
We also offer  torque screwdriver, torque meter, screw counter, screw feeder, screw driver bits and electric power supply for electric screwdrivers with less cost  but good  quality.
We are so confident of the quality of HIMAX electrical tools and we are one of the best electric screwdriver suppliers among all the China suppliers and even in the world.
Now you can find us on Facebook, Google+, Blogger, Wordpress.com  and Yahoo blogs. You can also follow us on Twitter and Plurk. We provide useful knowledge of electric screwdrivers and electrical tools for plant workers, factory buyers and engineers. Welcome to visit www.ehimax.com .

HIMAX台力牌电动起子www.ehimax.com 始于2001, 位于中国宁波,是专业的电动起子、电动螺丝刀、电批、电动工具制造商及供应商。就像HIOS好握速, Kilews奇力速, Delvo, Kolver, ASA好帮手, Conos技友等品牌, HIMAX台力牌电动起子也是世界最佳电动起子品牌。 HIMAX电动起子/螺丝刀/ 电批是专为精密电子及机械组装线及生产线设计的。因为HIMAX电动起子拥有精确的扭力控制,同时能够锁附各类大小的微型电子螺丝、细小螺丝,因此各项精密产品如平板电脑, 个人电脑, 计算机, 笔记型电脑, 数位相机, 手机行动电话,电视游戏机, 随身小型游戏机, 及其他随身电子产品设备等等,皆可采用HIMAX电动起子进行产品组装以确保生产品质。
我们也以平实的价格供应各式品质优良、物美价廉的起子头/批头、螺丝供料机、螺丝计数器、电动起子电源供应器及各式电动工具、五金工具等。
欢迎参观我们的网站
www.ehimax.com 购各式工具,我们同时也在脸书、Google+、Blogger、Wordpress.com上分享各类电动工具维修操作要诀及相关知识,并定期公布新品资讯及优惠活动。您也可在推特及噗浪上关注我们的最新讯息。 HIMAX台力牌电动起子感谢您的支持!

2011年5月24日 星期二

How to check whether the screw is fastened if fasten by manpower?

How to check whether the screw is fastened if fasten by manpower?

Question:
In the assembly lines of the electronics factories, operators usually use electric screwdrivers to fasten the screws on their products with certain torque, say, 20kgf-cm. My question is, what is the most economical and fast way to check whether every screw is fastened in the factories?

In more detail, what will be the approach for operators themselves to check the screws or for QC (Quality Control) staffs to inspect?
Now we are use electric screwdrivers with fixed torque, but I worry that workers may operate the electric screws wrongly or the electric screwdrivers are not so accurate and then fail to fasten every screw.

Answer:
The most convenient way is use torque-controlled electric screwdrivers, and set them to a certain torque.
Sometimes you can use torque wrench to calibrate electric screwdrivers, but the friction coefficient will affect the calibration.
This kind of man-made mistakes is indeed hard to avoid, unless your factory can inspect all the screws to achieve 100% quality control which is costly.

The solutions of this problem may be:
1.     Add electric sensor on electric screwdrivers – costly.
2.     Set a standard for operators to apply. For example, trigger or press the electric screwdrivers for XX seconds once when fasten a screw – difficult to enforce.
3.     Fasten all the screws with torque wrench – waste of time.

HIMAX Electric Screwdriver recommend: Usually adjust the torque of electric screwdrivers with digital torque meters.

Original Text原文 http://tw.knowledge.yahoo.com/question/question?qid=1609071007283
Translated by HIMAX Electric Screwdriver 

以人工鎖附螺絲該如何查有無鎖緊

問題:
生產線人員,以電動起子在一個產品上,很多地方,鎖螺絲扭力約20kgf-cm,如何用最省時方式及最實惠方式自主檢查或由另一人檢查每一顆螺絲都是正確鎖緊的

由作業人員自主檢查,鎖完螺絲後,用什麼方式做自主檢查,QC人員作抽檢。目前已是用設定好扭力值得電動起子,目前是怕一天下來,怕作業人員有閃失,沒鎖緊但以為有鎖緊了

答覆:
很多都是用有分段式的電動起子,把它調整至該範圍不就好了?
若怕是否準確,買隻扭力扳手比對校正就好了,但磨擦係數會影響鎖緊值

這種是屬於人為問題,的確很難去避免
若要達100%合格QC必須全檢
但您又想自主檢查就達到
1.
那必須有防呆裝置,在電動起子裝感應器----價格高
2.
訂定標準,例如下壓幾秒----須全員配合,風險高,但可降低不良率
3.
直接以扭力扳手鎖緊-----浪費時間

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HIMAX Electric Screwdriver www.ehimax.com is a professional electrical tool supplier in China since 2001. Like HIOS, Kilews, Delvo, Kolver, ASA, Conos and so on,  we are proficient in manufacturing electric screwdrivers. HIMAX Electric Screwdrivers are designed especially for the assembly line of  electronic products such as tablet, PC, laptop, digital camera, cell phone, game console, mobile devices and so on. HIMAX Electric Screwdriver possess accurate torque control to accomplish precision screw fasten tasks and can be used in automation system. Fastening small screws, electronic screw and miniature screw is what we are good at.
We also offer  torque screwdriver, torque meter, screw counter, screw feeder, screw driver bits and electric power supply for electric screwdrivers with less cost  but good  quality.
We are so confident of the quality of HIMAX electrical tools and we are one of the best electric screwdriver suppliers among all the China suppliers and even in the world.
Now you can find us on Facebook, Google+, Blogger, Wordpress.com  and Yahoo blogs. You can also follow us on Twitter and Plurk. We provide useful knowledge of electric screwdrivers and electrical tools for plant workers, factory buyers and engineers. Welcome to visit www.ehimax.com .

HIMAX台力牌电动起子www.ehimax.com 始于2001, 位于中国宁波,是专业的电动起子、电动螺丝刀、电批、电动工具制造商及供应商。就像HIOS好握速, Kilews奇力速, Delvo, Kolver, ASA好帮手, Conos技友等品牌, HIMAX台力牌电动起子也是世界最佳电动起子品牌。 HIMAX电动起子/螺丝刀/ 电批是专为精密电子及机械组装线及生产线设计的。因为HIMAX电动起子拥有精确的扭力控制,同时能够锁附各类大小的微型电子螺丝、细小螺丝,因此各项精密产品如平板电脑, 个人电脑, 计算机, 笔记型电脑, 数位相机, 手机行动电话,电视游戏机, 随身小型游戏机, 及其他随身电子产品设备等等,皆可采用HIMAX电动起子进行产品组装以确保生产品质。
我们也以平实的价格供应各式品质优良、物美价廉的起子头/批头、螺丝供料机、螺丝计数器、电动起子电源供应器及各式电动工具、五金工具等。
欢迎参观我们的网站
www.ehimax.com 购各式工具,我们同时也在脸书、Google+、Blogger、Wordpress.com上分享各类电动工具维修操作要诀及相关知识,并定期公布新品资讯及优惠活动。您也可在推特及噗浪上关注我们的最新讯息。 HIMAX台力牌电动起子感谢您的支持!

2011年5月9日 星期一

Welcome to Download HIMAX Product Brochure !

The Best Electric Screwdriver from Taiwan.
Welcome to Download HIMAX Product Brochure!

 

                       

------------------------------------------------------------------------------------------------------------------------------------

HIMAX Electric Screwdriver www.ehimax.com is a professional electrical tool supplier in China since 2001. Like HIOS, Kilews, Delvo, Kolver, ASA, Conos and so on,  we are proficient in manufacturing electric screwdrivers. HIMAX Electric Screwdrivers are designed especially for the assembly line of  electronic products such as tablet, PC, laptop, digital camera, cell phone, game console, mobile devices and so on. HIMAX Electric Screwdriver possess accurate torque control to accomplish precision screw fasten tasks and can be used in automation system. Fastening small screws, electronic screw and miniature screw is what we are good at.
We also offer  torque screwdriver, torque meter, screw counter, screw feeder, screw driver bits and electric power supply for electric screwdrivers with less cost  but good  quality.
We are so confident of the quality of HIMAX electrical tools and we are one of the best electric screwdriver suppliers among all the China suppliers and even in the world.
Now you can find us on Facebook, Google+, Blogger, Wordpress.com  and Yahoo blogs. You can also follow us on Twitter and Plurk. We provide useful knowledge of electric screwdrivers and electrical tools for plant workers, factory buyers and engineers. Welcome to visit www.ehimax.com .

HIMAX台力牌电动起子www.ehimax.com 始于2001, 位于中国宁波,是专业的电动起子、电动螺丝刀、电批、电动工具制造商及供应商。就像HIOS好握速, Kilews奇力速, Delvo, Kolver, ASA好帮手, Conos技友等品牌, HIMAX台力牌电动起子也是世界最佳电动起子品牌。 HIMAX电动起子/螺丝刀/ 电批是专为精密电子及机械组装线及生产线设计的。因为HIMAX电动起子拥有精确的扭力控制,同时能够锁附各类大小的微型电子螺丝、细小螺丝,因此各项精密产品如平板电脑, 个人电脑, 计算机, 笔记型电脑, 数位相机, 手机行动电话,电视游戏机, 随身小型游戏机, 及其他随身电子产品设备等等,皆可采用HIMAX电动起子进行产品组装以确保生产品质。
我们也以平实的价格供应各式品质优良、物美价廉的起子头/批头、螺丝供料机、螺丝计数器、电动起子电源供应器及各式电动工具、五金工具等。
欢迎参观我们的网站
www.ehimax.com 购各式工具,我们同时也在脸书、Google+、Blogger、Wordpress.com上分享各类电动工具维修操作要诀及相关知识,并定期公布新品资讯及优惠活动。您也可在推特及噗浪上关注我们的最新讯息。 HIMAX台力牌电动起子感谢您的支持!

What if I plug the power supply of electric screwdriver into a socket with wrong voltage

Question: 
What if I plug the power supply of electric screwdriver into a socket with wrong voltage?

As the question, I carelessly plug of the power supply of electric screwdriver (110V) into 220V socket when I used it in foreign factory.
Then, the socket and the power pack itself got some slight flame and became totally breakdown.
My question is, does anybody know which component will be broken in this situation? Or it’s just broken at all?
Can I get it fixed?

Answer:
If you plug the power supply of electric screwdriver into the socket with wrong voltage, the variable capacitor or resistance inside the power pack may be burn out.
Sometimes the whole PCB inside the power pack can be damaged.
The cost to repair it can cost as much as buying a new one.

----------------------------------------------------------------------------------------------------------------
You can get something like HIMAX CLT-50 power supply, which is proficient in electric screwdrivers, and can switch between 110V to 220V.
Product link: http://www.ehimax.com/productDetail.asp?id=48

Translated by HIMAX Electric Screwdriver

原文(Original Text) http://tw.knowledge.yahoo.com/question/question?qid=1010070808109

問題: 電動起子充電器插錯電源

如題
不慎將110v插入220v插座, 然後充電座有發出1點閃光, 然後整個停擺
請問是哪個零件故障, 或是整台都壞了?
麻煩知道的幫忙唄, 感恩喔

回答: 那是內部的變壓電容或電阻  燒毀了  甚至連整個線路版的 線路都受損了

若要維修 到不如買個新的

------------------------------------------------------------------------------------------------------------------------------------

HIMAX Electric Screwdriver www.ehimax.com is a professional electrical tool supplier in China since 2001. Like HIOS, Kilews, Delvo, Kolver, ASA, Conos and so on,  we are proficient in manufacturing electric screwdrivers. HIMAX Electric Screwdrivers are designed especially for the assembly line of  electronic products such as tablet, PC, laptop, digital camera, cell phone, game console, mobile devices and so on. HIMAX Electric Screwdriver possess accurate torque control to accomplish precision screw fasten tasks and can be used in automation system. Fastening small screws, electronic screw and miniature screw is what we are good at.
We also offer  torque screwdriver, torque meter, screw counter, screw feeder, screw driver bits and electric power supply for electric screwdrivers with less cost  but good  quality.
We are so confident of the quality of HIMAX electrical tools and we are one of the best electric screwdriver suppliers among all the China suppliers and even in the world.
Now you can find us on Facebook, Google+, Blogger, Wordpress.com  and Yahoo blogs. You can also follow us on Twitter and Plurk. We provide useful knowledge of electric screwdrivers and electrical tools for plant workers, factory buyers and engineers. Welcome to visit www.ehimax.com .

HIMAX台力牌电动起子www.ehimax.com 始于2001, 位于中国宁波,是专业的电动起子、电动螺丝刀、电批、电动工具制造商及供应商。就像HIOS好握速, Kilews奇力速, Delvo, Kolver, ASA好帮手, Conos技友等品牌, HIMAX台力牌电动起子也是世界最佳电动起子品牌。 HIMAX电动起子/螺丝刀/ 电批是专为精密电子及机械组装线及生产线设计的。因为HIMAX电动起子拥有精确的扭力控制,同时能够锁附各类大小的微型电子螺丝、细小螺丝,因此各项精密产品如平板电脑, 个人电脑, 计算机, 笔记型电脑, 数位相机, 手机行动电话,电视游戏机, 随身小型游戏机, 及其他随身电子产品设备等等,皆可采用HIMAX电动起子进行产品组装以确保生产品质。
我们也以平实的价格供应各式品质优良、物美价廉的起子头/批头、螺丝供料机、螺丝计数器、电动起子电源供应器及各式电动工具、五金工具等。
欢迎参观我们的网站
www.ehimax.com 购各式工具,我们同时也在脸书、Google+、Blogger、Wordpress.com上分享各类电动工具维修操作要诀及相关知识,并定期公布新品资讯及优惠活动。您也可在推特及噗浪上关注我们的最新讯息。 HIMAX台力牌电动起子感谢您的支持!