CN109494037A - A kind of efficient resistance trimming technique of high-precision low resistance alloy Chip-R - Google Patents
A kind of efficient resistance trimming technique of high-precision low resistance alloy Chip-R Download PDFInfo
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- CN109494037A CN109494037A CN201811372790.0A CN201811372790A CN109494037A CN 109494037 A CN109494037 A CN 109494037A CN 201811372790 A CN201811372790 A CN 201811372790A CN 109494037 A CN109494037 A CN 109494037A
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- resistance value
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- alloy chip
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
- H01C17/22—Apparatus or processes specially adapted for manufacturing resistors adapted for trimming
- H01C17/24—Apparatus or processes specially adapted for manufacturing resistors adapted for trimming by removing or adding resistive material
- H01C17/245—Apparatus or processes specially adapted for manufacturing resistors adapted for trimming by removing or adding resistive material by mechanical means, e.g. sand blasting, cutting, ultrasonic treatment
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C7/00—Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material
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- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
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- Manufacturing & Machinery (AREA)
- Punching Or Piercing (AREA)
Abstract
The object of the present invention is to provide a kind of efficient resistance trimming techniques of high-precision low resistance alloy Chip-R, comprising: 1) raw material material strip is by punching machine and mould punching at fixed-size alloy Chip-R；2) by each test resistance value of all alloy Chip-Rs, then stepping；3) for the alloy Chip-R in different Standard resistance ranges, the position of product after each feeding is adjusted, by alloy Chip-R punching press notch；4) after product is fed to stamping position, product short side position is limited by chute feeder in lower die；5) product after resistance trimming surveys resistance again, continues stepping；6) the alloy Chip-R away from target resistance value 1%-5% less than normal carries out different degrees of punching press again, to continue up to target Standard resistance range, improves resistance yield.Punching type resistance trimming of the present invention is simple to equipment requirement, it is only necessary to which mold, punching machine and feed device can work continuously without chemical contamination, high production efficiency.
Description
Technical field
The invention belongs to technical field of electronic components, in particular to a kind of high-precision low resistance alloy Chip-R is efficient
Resistance trimming technique.
Background technique
It uses or disclosed resistance trimming technique at present, in a manner of use chemical corrosion liquid corrosion resistance body or laser resistor trimming
Based on, environment generation is polluted because chemical corrosion liquid mostly uses nitrate, hydrocarbons etc. easy using chemical corrosion liquid resistance trimming,
Harm etc. is generated safely to operating personnel's body and mind, and uses laser resistor trimming, then because there are nuance, electricity for resistance material resistivity
Hindering size, there are nuances, and the resistance value of each resistance is inconsistent, causes resistance product yield after laser resistor trimming not high, individual particle
Although resistance is lasered resistor trimming on one side survey resistance while, yield is high but resistance trimming fuel factor pair that is inefficient, and generating when laser resistor trimming
The lattice arrangement and its performance of alloy material also have a degree of influence, therefore traditional resistance trimming mode becomes restriction production effect
One step of key of rate.
The difference of alloy Chip-R size and resistivity after dividing particle causes resistance value that can be distributed in a section, because
Requirement of the alloy Chip-R to resistance accuracy is high, cause the alloy Chip-R yield of high-precision (such as ± 1% or ± 0.5%) compared with
It is low, it is therefore desirable to which that the resistance resistance trimming less than normal to resistance value guarantees resistance value in accuracy rating.
Summary of the invention
According to R=ρ × L/S；R is resistance, Ω；ρ is resistivity, Ω m；L is resistance body length, m；S is resistance
Body cross-sectional area, m2, the principle of resistance trimming of the present invention is by changing resistor body cross-sectional area size to make resistance increase
Greatly, arc or semicircular scarce is punched at resistor body edge by punching machine and mold present invention firstly provides a kind of
Mouth changes resistor body cross-sectional area to reach the mode of resistance trimming, and secondly the distribution of alloy Chip-R resistance value is made for a moment
Individual particle resistance and the gap of target resistance value are different, different so as to cause the amplitude of resistance trimming, and the present invention is by rushing
Before incised notch mouth resistance according to resistance value difference is divided into different stalls to be punched out different size of notch and reach raising resistance trimming
Efficiency increases the purpose of resistance yield.
In order to achieve the above object, the technical solution of the present invention is as follows:
A kind of efficient resistance trimming technique of high-precision low resistance alloy Chip-R, comprising: 1) raw material material strip passes through punching machine and mold
Strike out fixed-size alloy Chip-R；2) it by each test resistance value of all alloy Chip-Rs, then sorts into several
A gear, specific stepping are as follows: one sets the goal, and alloy Chip-R that resistance value aimed at precision is 1% can sort and become: target resistance value
Other than less than normal 5%, target resistance value 4%-5% less than normal, target resistance value 3%-4% less than normal, target resistance value 2%-3% less than normal, target
Resistance value 1%-2% less than normal, in target resistance value 1%, target resistance value bigger than normal 1% or more；Resistance in target resistance value 1% is as non-defective unit
It is taken out, the alloy Chip-R other than target resistance value less than normal 5% and other than target resistance value bigger than normal 1% is used as can not resistance trimming product
It is removed, target resistance value 4%-5% less than normal, target resistance value 3%-4% less than normal, target resistance value 2%-3% less than normal, target resistance value is inclined
Small 1%-2% is as resistance trimming product；3) for the alloy Chip-R in different Standard resistance ranges, according to the difference of itself and target resistance value
Position away from product after the inconsistent each feeding of adjustment, stamps out different size of arc for alloy Chip-R or semicircle lacks
Mouthful, achieve the purpose that resistance trimming in batches；4) after product is fed to stamping position, product short side position (at left and right sides of feed direction)
It is limited by chute feeder in lower die, and product long side position then controls pre-positioning block position and exhaust hood by adjusting prelocalization screw
Stroke is realized；5) product after resistance trimming surveys resistance again, continues stepping, is divided into target resistance value 2%-1.8% less than normal, target resistance value
1.8%-1.6% less than normal, target resistance value 1.6%-1.4% less than normal, target resistance value 1.4%-1.2% less than normal, target resistance value are less than normal
1.2%-1.0% is that non-defective unit takes out in target resistance value 1%；6) the alloy Chip-R of target resistance value 1%-2% less than normal is
The opposite side of resistance trimming notch carries out different degrees of punching press according to the difference of Standard resistance range again, to continue up to target resistance value
Range improves resistance yield.
Preferably, the punch steps in step 3) specifically: mold and punching head uses fabricated structure, and punching formed punch is embedded in
In binder formed punch, punching formed punch and binder formed punch form the movable structure of combined type, and the movable punch structure of the combined type passes through
Stripper plate is fixed together with cope plate, movable between the movable punch structure of the combined type and stripper plate, stripper plate with it is upper
It is linked together between template by spring.When spring is uncompressed, binder formed punch because length it is longer exposing outside, punching formed punch because
Length is shorter to be hidden in binder formed punch, and when upper mold integrally pushes, guide post shares lower template guide pillar hole, until binder formed punch is pushed down
Product and stripper plate share lower template, and product is fixed at this time completes, and continue the spring for pushing, connecting between cope plate and stripper plate
Shrink, be punched formed punch at this time and be gradually exposed to being completely exposed and touch product, from product long side side stamp out a notch and with
Lower template resistance trimming cavity plate is shared, and punching press resistance trimming notch is completed.
Preferably, the product in step 3) and step 5), after product is fed to stamping position, at left and right sides of feed direction
Short side position is limited by chute feeder in lower die, and product long side position then controls pre-positioning block position by adjusting prelocalization screw
It sets with exhaust hood stroke and realizes.
The beneficial effects of the present invention are:
1. punching type resistance trimming is simple to equipment requirement, it is only necessary to which mold, punching machine and feed device can continuously be made without chemical contamination
Industry, high production efficiency.
2. the resistance trimming after sorting resistance value gear greatly improves resistance trimming efficiency, more subtly sorting and resistance trimming is into one again
Step improves product yield.
3. resistance trimming and survey resistance carry out in two kinds of equipment, resistance trimming and test product resistance value can carry out simultaneously, no sequencing,
Improve production efficiency.
4. adjustable position limiting structure realizes the controllability of different stalls product resistance trimming to target resistance value, tune can be adjusted
The size of notch is hindered, knockdown punch structure, which is fixed it before product punching, ensure that die cutting accuracy, that is, ensure that
Resistance trimming precision.
5. the resistance trimming technique does not damage resistance alloy material characteristic, the resistance of production has high-precision, high reliability, low temperature
The advantages of spending coefficient, overcomes the deficiencies in the prior art, has good prospects for commercial application.
6. upper mold is made of cope plate, stripper plate, guide post, spring, formed punch；Lower die is made of lower template and mold insert, mold insert
It is conveniently replaceable when the lower die edge of a knife is worn.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of stamping die of the present invention；
Fig. 2 is the side schematic view of Fig. 1；
Fig. 3 is the structural schematic diagram of punching die lower template.
In figure: 1, cope plate；2, lower template；3, mold insert；4, stripper plate；5, guide post；6, spring；7, formed punch.
Specific embodiment
One embodiment of the present invention is further illustrated with reference to the accompanying drawings.
Embodiment 1: Fig. 1 is referred to:
A kind of efficient resistance trimming technique of high-precision low resistance alloy Chip-R, comprising: 1) raw material material strip passes through punching machine and mold
Strike out fixed-size alloy Chip-R；2) it by each test resistance value of all alloy Chip-Rs, then sorts into several
A gear, specific stepping are as follows: one sets the goal, and alloy Chip-R that resistance value aimed at precision is 1% can sort and become: target resistance value
Other than less than normal 5%, target resistance value 4%-5% less than normal, target resistance value 3%-4% less than normal, target resistance value 2%-3% less than normal, target
Resistance value 1%-2% less than normal, in target resistance value 1%, target resistance value bigger than normal 1% or more；Resistance in target resistance value 1% is as non-defective unit
It is taken out, the alloy Chip-R other than target resistance value less than normal 5% and other than target resistance value bigger than normal 1% is used as can not resistance trimming product
It is removed, target resistance value 4%-5% less than normal, target resistance value 3%-4% less than normal, target resistance value 2%-3% less than normal, target resistance value is inclined
Small 1%-2% is as resistance trimming product；3) for the alloy Chip-R in different Standard resistance ranges, according to the difference of itself and target resistance value
Position away from product after the inconsistent each feeding of adjustment, stamps out different size of arc for alloy Chip-R or semicircle lacks
Mouthful, achieve the purpose that resistance trimming in batches；Mold and punching head uses fabricated structure, and upper mold is by cope plate, stripper plate, guide post, spring, punching
Head composition；Lower die is made of lower template and mold insert, and mold insert is conveniently replaceable when the lower die edge of a knife is worn.Punching formed punch is embedded in
In binder formed punch, punching formed punch and binder formed punch form the movable structure of combined type, and the movable punch structure of the combined type passes through
Stripper plate is fixed together with cope plate, movable between the movable punch structure of the combined type and stripper plate, stripper plate with it is upper
It is linked together between template by spring.When spring is uncompressed, binder formed punch because length it is longer exposing outside, punching formed punch because
Length is shorter to be hidden in binder formed punch, and when upper mold integrally pushes, guide post shares lower template guide pillar hole, until binder formed punch is pushed down
Product and stripper plate share lower template, and product is fixed at this time completes, and continue the spring for pushing, connecting between cope plate and stripper plate
Shrink, be punched formed punch at this time and be gradually exposed to being completely exposed and touch product, from product long side side stamp out a notch and with
Lower template resistance trimming cavity plate is shared, and punching press resistance trimming notch is completed.4) after product is fed to stamping position, product short side position (is sent on edge
At left and right sides of material direction) it is limited by chute feeder in lower die, and product long side position is then by adjusting fixed before the control of prelocalization screw
Position block position and exhaust hood stroke are realized；5) product after resistance trimming surveys resistance again, continues stepping, it is less than normal to be divided into target resistance value
2%-1.8%, target resistance value 1.8%-1.6% less than normal, target resistance value 1.6%-1.4% less than normal, target resistance value 1.4%- less than normal
1.2%, target resistance value 1.2%-1.0% less than normal are that non-defective unit takes out in target resistance value 1%；6) target resistance value 1%-2% less than normal
Alloy Chip-R first time resistance trimming notch opposite side according to Standard resistance range difference carry out different degrees of punching press again,
To continue up to target Standard resistance range, resistance yield is improved.
Product short side position in step 3) and step 5), after product is fed to stamping position, at left and right sides of feed direction
It sets, is limited by chute feeder in lower die, and product long side position is then by adjusting prelocalization screw control pre-positioning block position with after
Cylinder stroke is realized.
The above is not intended to limit the scope of the present invention, and all technical spirits according to the present invention are to above
Any modification, equivalent variations and modification made by embodiment, in the range of still falling within technical solution of the present invention.
Claims (5)
1. a kind of efficient resistance trimming technique of high-precision low resistance alloy Chip-R, it is characterised in that: include: 1) raw material material strip it is logical
Punching machine and mould punching are crossed into fixed-size alloy Chip-R；2) by each test resistance value of all alloy Chip-Rs, so
After sort into several gears；3) for the alloy Chip-R in different Standard resistance ranges, according to the gap of itself and target resistance value
The position of product, stamps out different size of arc for alloy Chip-R or semicircle lacks after the inconsistent each feeding of adjustment
Mouthful, achieve the purpose that resistance trimming in batches；4) after product is fed to stamping position, product short side position (at left and right sides of feed direction)
It is limited by chute feeder in lower die, and product long side position then controls pre-positioning block position and exhaust hood by adjusting prelocalization screw
Stroke is realized；5) product after resistance trimming surveys resistance again, continues stepping；6) the alloy patch electricity away from target resistance value 1%-5% less than normal
The opposite side hindered in first time resistance trimming notch carries out different degrees of punching press according to the difference of Standard resistance range again, to continue up to mesh
Standard resistance range is marked, resistance yield is improved.
2. the efficient resistance trimming technique of high-precision low resistance alloy Chip-R according to claim 1, it is characterised in that: described
Stepping in step 2 are as follows: one sets the goal, and alloy Chip-R that resistance value aimed at precision is 1% can sort and become: target resistance value is inclined
Other than small 5%, target resistance value 4%-5% less than normal, target resistance value 3%-4% less than normal, target resistance value 2%-3% less than normal, target resistance
It is worth 1%-2% less than normal, in target resistance value 1%, target resistance value bigger than normal 1% or more；Resistance in target resistance value 1% is as non-defective unit quilt
It takes out, the alloy Chip-R other than target resistance value less than normal 5% and other than target resistance value bigger than normal 1% is used as can not resistance trimming product quilt
It rejects, target resistance value 4%-5% less than normal, target resistance value 3%-4% less than normal, target resistance value 2%-3% less than normal, target resistance value is less than normal
1%-2% is as resistance trimming product.
3. the efficient resistance trimming technique of high-precision low resistance alloy Chip-R according to claim 1, it is characterised in that: step
3) punch steps in specifically: mold and punching head uses fabricated structure, and punching formed punch is embedded in binder formed punch, is punched formed punch
The movable structure of combined type is formed with binder formed punch, the movable punch structure of the combined type passes through stripper plate and is fixed on cope plate
Together, movable between the movable punch structure of the combined type and stripper plate, it is connected between stripper plate and cope plate by spring
Together.
4. the efficient resistance trimming technique of high-precision low resistance alloy Chip-R according to claim 1, it is characterised in that: step
5) stepping in, is divided into target resistance value 2%-1.8% less than normal, target resistance value 1.8%-1.6% less than normal, and target resistance value is less than normal
1.6%-1.4%, target resistance value 1.4%-1.2% less than normal, target resistance value 1.2%-1.0% less than normal are in target resistance value 1%
Non-defective unit takes out.
5. the efficient resistance trimming technique of high-precision low resistance alloy Chip-R according to claim 1, it is characterised in that: step
3) and in step 5), after product is fed to stamping position, product short side position at left and right sides of feed direction, by being sent in lower die
Hopper limit, and product long side position then controls pre-positioning block position by adjusting prelocalization screw and exhaust hood stroke comes in fact
It is existing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811372790.0A CN109494037A (en) | 2018-11-19 | 2018-11-19 | A kind of efficient resistance trimming technique of high-precision low resistance alloy Chip-R |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811372790.0A CN109494037A (en) | 2018-11-19 | 2018-11-19 | A kind of efficient resistance trimming technique of high-precision low resistance alloy Chip-R |
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| CN109494037A true CN109494037A (en) | 2019-03-19 |
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| CN201811372790.0A Pending CN109494037A (en) | 2018-11-19 | 2018-11-19 | A kind of efficient resistance trimming technique of high-precision low resistance alloy Chip-R |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111863365A (en) * | 2019-04-28 | 2020-10-30 | 深圳市杰普特光电股份有限公司 | Resistance trimming machine and resistance trimming method thereof |
| CN112201424A (en) * | 2020-10-22 | 2021-01-08 | 深圳市海纳特自动化科技有限公司 | Process for correcting resistance value by removing material |
| CN112404624A (en) * | 2020-11-03 | 2021-02-26 | 深圳市业展电子有限公司 | Machining process for measuring resistance and wire cutting |
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| CN105244130A (en) * | 2015-11-03 | 2016-01-13 | 深圳市美隆电子有限公司 | Manufacturing method of super-micro alloy resistor |
| CN106952702A (en) * | 2016-11-11 | 2017-07-14 | 东莞华恒电子有限公司 | A kind of metal plate structure high power high value precision Chip-R manufacture craft and Chip-R |
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| CN101587766A (en) * | 2009-03-23 | 2009-11-25 | 贝迪斯电子有限公司 | Method for manufacturing precise metal strip resistor |
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| CN102074326A (en) * | 2009-11-24 | 2011-05-25 | 兴亚株式会社 | Resistance value regulating method of resistor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111863365A (en) * | 2019-04-28 | 2020-10-30 | 深圳市杰普特光电股份有限公司 | Resistance trimming machine and resistance trimming method thereof |
| CN112201424A (en) * | 2020-10-22 | 2021-01-08 | 深圳市海纳特自动化科技有限公司 | Process for correcting resistance value by removing material |
| CN112404624A (en) * | 2020-11-03 | 2021-02-26 | 深圳市业展电子有限公司 | Machining process for measuring resistance and wire cutting |
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