CN104344781A - Device for accurately measuring depth of wire rod rolling groove - Google Patents
Device for accurately measuring depth of wire rod rolling groove Download PDFInfo
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- CN104344781A CN104344781A CN201410546101.9A CN201410546101A CN104344781A CN 104344781 A CN104344781 A CN 104344781A CN 201410546101 A CN201410546101 A CN 201410546101A CN 104344781 A CN104344781 A CN 104344781A
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- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The invention discloses a device for accurately measuring the depth of a wire rod rolling groove and relates to the field of measuring devices in machining. The device comprises a dial indicator which is fixedly arranged at the middle of a V-shaped support block by using a fixed screw, wherein a high-strength wear-resisting measurement head with the diameter of 0.3-0.5mm is arranged at the lower end of the dial indicator; an inverted V-shaped groove is formed in the lower part of the V-shaped support block; two sides of the inverted V-shaped groove are bottom surfaces positioned on the same horizontal plane; the dial indicator is arranged in an unthreaded hole on the center line of the inverted V-shaped groove. According to the device disclosed by the invention, the problem about accurate measurement for the depth of a groove with the width of smaller than 3mm and the depth tolerance of 0.01-0.05mm in the machining process and accurate measurement of the depth before surface defects of workpieces are eliminated are solved; the machining quality of the workpiece is guaranteed; the accurate measurement for the defect depth before the surface defects of the workpieces are eliminated is guaranteed, so that the waste of labor force and equipment capacity caused by mistaken measurement and judgment is avoided, and expenditure is reduced.
Description
Technical field
The present invention relates to the measurement mechanism field in machining, be specifically related to the device of accurate slotted line bar roll groove depth in machining.
Background technology
Wire and rod roll there is a lot of groove, as annular groove, keyway, V-type groove, crescent etc.Process in the process of these grooves at lathe and milling machine; often can run into that some groove widths are less than that 3mm or shape, location comparison are special, groove that diameter or depth tolerances require within 0.01 ~ 0.05mm; the diameter of this type of groove or the degree of depth general measurer (as Steel Ruler, milscale, slide calliper rule or pit gauge etc.) are measured; maybe cannot reach accuracy requirement, maybe cannot measure.As: the groove width of lathe process is less than the annular groove of 3mm, because the measuring head diameter of milscale is greater than 3mm, cannot touch ring groove bottom part, thus cannot measure diameter of ring groove with milscale, and by pit gauge or caliper measurements, cannot reach accuracy requirement again.Crescent on screw-thread steel finished product roller arc groove, be positioned at bottom arc groove, and with arc groove axis out of plumb, its degree of depth relative to arc groove is the distance between arc groove minimum point to crescent minimum point, crescent width, between 0.4 ~ 2.5mm, cannot be measured with general measurer at all.
In addition, for the fault in material such as misrun, pore, slag inclusion that surface of the work occurs, carry out by means of allow processing before, its more accurate degree of depth need be known, but due to defect area little, bottom surface uneven, be difficult to, with general gage measuring to minimum point, give by means of allowing processing bring great difficulty, sometimes even due to measurement, error in judgement, cause, by means of allowing failure, causing the waste of manpower and capacity of equipment.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of device, on accurate slotted line bar roll, groove width is less than the degree of depth in process of 3mm, the groove of groove depth tolerance between 0.01 ~ 0.05mm and Surface Flaw by means of the degree of depth before allowing, avoid measuring error, ensure crudy, save process time.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of device of accurate slotted line bar roll groove depth, comprise dial gauge, V-type back-up block, gib screw and high-strength abrasion-proof measuring head, the inverted V-shaped groove to be angle be in described V-type back-up block bottom obtuse angle, the both sides of inverted V-shaped groove are the bottom surface being in same level; V-type back-up block has one perpendicular to the center line of inverted V-shaped groove and the unthreaded hole of bottom surface; The sleeve of described dial gauge is through in the unthreaded hole of V-type back-up block, and described gib screw is arranged on the front surface of V-type back-up block, and gib screw makes dial gauge be fixedly connected with V-type back-up block by solid for the sleeve top of dial gauge in unthreaded hole; Described high-strength abrasion-proof measuring head lower end is the measurement contact of diameter 0.3 ~ 0.5mm, and upper end is the screw rod of long 6mm, nominal diameter M4, and high-strength abrasion-proof measuring head is threaded connection the lower end of the sleeve at dial gauge.
Further technical scheme is: the sleeve of dial gauge and the symmetrical unthreaded hole clearance fit of V-type back-up block.Described unthreaded hole is near the front surface installing gib screw.Unthreaded hole distance front surface is nearer.
Owing to adopting technique scheme, the technical progress acquired by the present invention is:
The invention solves that groove width is less than 3mm, the degree of depth of the groove of groove depth tolerance between 0.01 ~ 0.05mm in process accurately measures problem and Surface Flaw accurately measures problem by means of the degree of depth before allowing, ensure that its crudy, for Surface Flaw by means of allowing, ensure that by means of allowing the front accurate measurement for depth of defect, avoid due to measurement, error in judgement, cause the waste by means of the manpower allowing failure cause and capacity of equipment, reduction of expenditure.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of measured workpiece in the specific embodiment of the invention;
Fig. 3 is principle of work schematic diagram of the present invention.
Wherein: 1, dial gauge; 2, V-type back-up block; 3, gib screw; 4, high-strength abrasion-proof measuring head.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further details:
As shown in Figure 1, this device comprises dial gauge 1, V-type back-up block 2, gib screw 3 and high-strength abrasion-proof measuring head 4.The bottom of V-type back-up block 2 has an inverted V-shaped groove, and the front surface of the through V-type back-up block 2 of inverted V-shaped groove and rear surface, its angle is obtuse angle.The both sides of inverted V-shaped groove are two bottom surfaces, and two bottom surfaces all have one fixed width and being in same level.V-type back-up block 2 has a unthreaded hole, the central axis of this unthreaded hole is in the center line of inverted V-shaped groove, and two plane perpendicular of both sides with inverted V-shaped groove, unthreaded hole is positioned on the center line of the spacing on surface, left and right, and namely the shape of V-type back-up block 2 and groove is symmetrical shape with unthreaded hole axis.Have a screw at the front surface of V-type back-up block 2, described gib screw 3 is arranged in this screw.Unthreaded hole is near the front surface installing gib screw 3, and unthreaded hole distance front surface is nearer.The sleeve of described dial gauge 1 is through in the unthreaded hole of V-type back-up block 2, the sleeve of dial gauge 1 and unthreaded hole are clearance fit, described gib screw 3 is arranged on the front surface of V-type back-up block 2, and gib screw 3 in unthreaded hole, makes dial gauge 1 be fixedly connected with solid for the sleeve top of dial gauge 1 with V-type back-up block 2.Described high-strength abrasion-proof measuring head 4 lower end is the measurement contact of diameter 0.3 ~ 0.5mm, and upper end is the screw rod of long 6mm, nominal diameter M4, and high-strength abrasion-proof measuring head 4 is threaded connection the lower end of the sleeve at dial gauge 1.Through in the unthreaded hole of V-type back-up block 2 after high-strength abrasion-proof measuring head 4 thread end is connected with the bush whorl of dial gauge 1, and fastening with gib screw 3.
This device can be positioned over deviation from circular from and be no more than the arc surface of 0.1mm or flatness error is not more than in the plane of 0.05mm, by V-type back-up block 2V shape face or location, bottom surface, realizes the accurate measurement to groove depth and the fault in material degree of depth.Principle of work is the object using the method compared and measured to reach measurement.
Using method:
1), in the handle assembly arc surface that is placed on the place, position that will measure or plane, note ensureing the close contact of two bottom surfaces (during plane) of V-type back-up block 2 or two V-type faces (during arc surface) and locating surface.Make high-strength abrasion-proof measuring head 4 and arc surface or plane contact under pressure, rotate dial gauge 1 dial plate, make the size pointer of dial gauge 1 all point to " 0 " groove;
2) handle assembly is placed on the position that will measure, and moves gently, observes the rotation situation of dial gauge 1 pointer simultaneously, and during the large indicators turn amplitude peak of dial gauge 1, it is survey measurements that the millimeter that little pointer turns over adds that number of division that large pointer turns is multiplied by 0.01mm.
As shown in Figure 2, for the crescent of screw-thread steel finished product roller, its cross sectional shape is isosceles trapezoid, be positioned at bottom arc groove, its slot bottom width does not coexist between 0.4 ~ 2.5mm according to rolled screw-thread steel specification, groove depth be from arc groove minimum point to crescent bottom the distance of minimum point, groove depth tolerance 0.03mm, cannot measure with general measurer.
As shown in Figure 3, during with this measurement device, first place it on cylindrical arc surface, high-strength abrasion-proof measuring head 4 is contacted with arc groove minimum point under a certain pressure, rotate dial gauge 1 dial plate, make the size pointer of dial gauge 1 all point to " 0 " groove; Then mobile device, high-strength abrasion-proof measuring head 4 is contacted with at the bottom of crescent, move gently, observe the rotation situation of dial gauge 1 pointer simultaneously, during the large indicators turn amplitude peak of dial gauge 1, it is crescent depth value that the millimeter that little pointer turns over adds that number of division that large pointer turns is multiplied by 0.01mm.
The invention solves that groove width is less than 3mm, the degree of depth of the groove of groove depth tolerance between 0.01 ~ 0.05mm in process accurately measures problem and Surface Flaw accurately measures problem by means of the degree of depth before allowing, ensure that its crudy, for Surface Flaw by means of allowing, ensure that by means of allowing the front accurate measurement for depth of defect, avoid due to measurement, error in judgement, cause the waste by means of the manpower allowing failure cause and capacity of equipment, reduction of expenditure.
Claims (3)
1. the device of an accurate slotted line bar roll groove depth, it is characterized in that: comprise dial gauge (1), V-type back-up block (2), gib screw (3) and high-strength abrasion-proof measuring head (4), the inverted V-shaped groove to be angle be in described V-type back-up block (2) bottom obtuse angle, the both sides of inverted V-shaped groove are the bottom surface being in same level; V-type back-up block (2) has one perpendicular to the center line of inverted V-shaped groove and the unthreaded hole of bottom surface; The sleeve of described dial gauge (1) is through in the unthreaded hole of V-type back-up block (2), described gib screw (3) is arranged on the front surface of V-type back-up block (2), and gib screw (3) makes dial gauge (1) be fixedly connected with V-type back-up block (2) by solid for the sleeve top of dial gauge (1) in unthreaded hole; Described high-strength abrasion-proof measuring head (4) lower end is the measurement contact of diameter 0.3 ~ 0.5mm, and upper end is the screw rod of long 6mm, nominal diameter M4, and high-strength abrasion-proof measuring head (4) is threaded connection the lower end of the sleeve at dial gauge (1).
2. the device of a kind of accurate slotted line bar roll groove depth according to claim 1, is characterized in that: the sleeve of dial gauge (1) and the symmetrical unthreaded hole clearance fit of V-type back-up block (2).
3. the device of a kind of accurate slotted line bar roll groove depth according to claim 1, is characterized in that: described unthreaded hole is near the front surface installing gib screw (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410546101.9A CN104344781A (en) | 2014-10-16 | 2014-10-16 | Device for accurately measuring depth of wire rod rolling groove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410546101.9A CN104344781A (en) | 2014-10-16 | 2014-10-16 | Device for accurately measuring depth of wire rod rolling groove |
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| Publication Number | Publication Date |
|---|---|
| CN104344781A true CN104344781A (en) | 2015-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410546101.9A Pending CN104344781A (en) | 2014-10-16 | 2014-10-16 | Device for accurately measuring depth of wire rod rolling groove |
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| CN (1) | CN104344781A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106091892A (en) * | 2016-08-26 | 2016-11-09 | 慈溪市汇丽机电有限公司 | A kind of device measuring the high accuracy inner circle seal groove degree of depth |
| CN106767320A (en) * | 2016-12-02 | 2017-05-31 | 中国航天科技集团公司长征机械厂 | A kind of detecting tool for quick and precisely detecting part pit defect depth dimensions |
| CN111906593A (en) * | 2020-08-12 | 2020-11-10 | 云南玉溪玉昆钢铁集团有限公司 | Measuring device for milling crescent groove on roller and measuring mode thereof |
| CN114353638A (en) * | 2021-12-27 | 2022-04-15 | 东北轻合金有限责任公司 | Method for measuring defect depth of local pits on surface of round product |
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| CN201476748U (en) * | 2009-07-16 | 2010-05-19 | 江苏罡阳动力转向器厂 | Measuring tool for quickly measuring slot and hole depth processing precision of workpieces in batches |
| CN201548174U (en) * | 2009-10-28 | 2010-08-11 | 江西申工工具有限公司 | Key slot depth scale |
| CN202074926U (en) * | 2011-05-24 | 2011-12-14 | 青岛吉恒汽车零部件有限公司 | Groove depth measuring apparatus |
| CN202692910U (en) * | 2012-08-15 | 2013-01-23 | 浙江恒成硬质合金有限公司 | Groove depth measuring instrument |
| CN202814302U (en) * | 2012-08-20 | 2013-03-20 | 中国石油集团渤海石油装备制造有限公司 | Supersonic wave flaw detection contrast sample tube notch depth measuring apparatus |
| CN103115554A (en) * | 2013-02-01 | 2013-05-22 | 安阳鑫盛机床股份有限公司 | Device and method for measuring depth of annular grooves in large-sized workpiece holes |
| CN203061907U (en) * | 2012-11-30 | 2013-07-17 | 阳光硅谷电子科技有限公司 | Groove-depth on-line measuring device of contact type multi-line cutting machine main-roller roller groove |
| CN203385370U (en) * | 2013-07-15 | 2014-01-08 | 天润曲轴股份有限公司 | Crankshaft semicircular keyway depth detection tool |
| CN203464882U (en) * | 2013-09-28 | 2014-03-05 | 山东瑞祥模具有限公司 | Flat bottom hole and narrow groove depth measuring instrument |
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2014
- 2014-10-16 CN CN201410546101.9A patent/CN104344781A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU419714A1 (en) * | 1971-01-11 | 1974-03-15 | Экспериментальный научно исследовательский институт металлорежущих станков | INDICATOR DEVICE FOR THE CONTROL OF THE WIDTH AND NOSYMMETRICITY OF THE LOCATION OF GROOVES |
| CN201476748U (en) * | 2009-07-16 | 2010-05-19 | 江苏罡阳动力转向器厂 | Measuring tool for quickly measuring slot and hole depth processing precision of workpieces in batches |
| CN201548174U (en) * | 2009-10-28 | 2010-08-11 | 江西申工工具有限公司 | Key slot depth scale |
| CN202074926U (en) * | 2011-05-24 | 2011-12-14 | 青岛吉恒汽车零部件有限公司 | Groove depth measuring apparatus |
| CN202692910U (en) * | 2012-08-15 | 2013-01-23 | 浙江恒成硬质合金有限公司 | Groove depth measuring instrument |
| CN202814302U (en) * | 2012-08-20 | 2013-03-20 | 中国石油集团渤海石油装备制造有限公司 | Supersonic wave flaw detection contrast sample tube notch depth measuring apparatus |
| CN203061907U (en) * | 2012-11-30 | 2013-07-17 | 阳光硅谷电子科技有限公司 | Groove-depth on-line measuring device of contact type multi-line cutting machine main-roller roller groove |
| CN103115554A (en) * | 2013-02-01 | 2013-05-22 | 安阳鑫盛机床股份有限公司 | Device and method for measuring depth of annular grooves in large-sized workpiece holes |
| CN203385370U (en) * | 2013-07-15 | 2014-01-08 | 天润曲轴股份有限公司 | Crankshaft semicircular keyway depth detection tool |
| CN203464882U (en) * | 2013-09-28 | 2014-03-05 | 山东瑞祥模具有限公司 | Flat bottom hole and narrow groove depth measuring instrument |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106091892A (en) * | 2016-08-26 | 2016-11-09 | 慈溪市汇丽机电有限公司 | A kind of device measuring the high accuracy inner circle seal groove degree of depth |
| CN106767320A (en) * | 2016-12-02 | 2017-05-31 | 中国航天科技集团公司长征机械厂 | A kind of detecting tool for quick and precisely detecting part pit defect depth dimensions |
| CN111906593A (en) * | 2020-08-12 | 2020-11-10 | 云南玉溪玉昆钢铁集团有限公司 | Measuring device for milling crescent groove on roller and measuring mode thereof |
| CN114353638A (en) * | 2021-12-27 | 2022-04-15 | 东北轻合金有限责任公司 | Method for measuring defect depth of local pits on surface of round product |
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Application publication date: 20150211 |