CN104390553A - Auxiliary measuring device of inner bore ring slot - Google Patents
Auxiliary measuring device of inner bore ring slot Download PDFInfo
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- CN104390553A CN104390553A CN201410744932.7A CN201410744932A CN104390553A CN 104390553 A CN104390553 A CN 104390553A CN 201410744932 A CN201410744932 A CN 201410744932A CN 104390553 A CN104390553 A CN 104390553A
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- positioning tube
- grooves
- measuring
- internal circular
- slide block
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Abstract
The invention provides an auxiliary measuring device of an inner bore ring slot. The auxiliary measuring device comprises a measuring head which comprises two measuring slide blocks, wherein the measuring slide blocks are assembled on a positioning barrel in a sliding manner along the radial direction; the positioning barrel is provided with an outer peripheral surface fitted with the inner peripheral surface of the inner bore of the measured piece. The auxiliary measuring device of the inner bore ring slot disclosed by the invention has an unmeasured state and a measured state, wherein under an unmeasured state, the measuring slide blocks completely retract in the positioning barrel, and the outer ends of the measuring slide blocks are not exposed of the outer peripheral surface of the positioning barrel; under the measured state, the measuring slide blocks extend out of the outer peripheral surface of the positioning barrel, and the outer ends of the measuring slide blocks are in thrust limit fit in the outward direction of the slot bottom of an inner ring slot. The auxiliary measuring device of the inner bore ring slot disclosed by the invention can be used for guaranteeing that the measuring head is vertical to the inner bore axis of the measured piece, is accurate in measured data, very simple in structure and relatively low in using cost.
Description
Technical field
The present invention relates to internal circular-grooves aided measurement device.
Background technology
The inner hole wall of some parts is provided with annular groove, and these annular groove measurements are got up two of very inconvenient, common vernier caliper to measure claws and can not be reached annular groove inside, so just cannot measure these internal circular-grooves, affect the crudy of part.
Notification number is that the Chinese invention patent of CN101706242 discloses a kind of duplex measuring scale of internal ring groove, measuring head is equipped with in the end of the sounding rod of this dip stick, measuring head is made up of two symmetrical sliding shoes, the opposite face of two sliding shoes is provided with tooth bar, sounding rod is provided with and the tooth bar meshed gears on two sliding shoes, rotation measuring bar with make two sliding shoes mutually away from and go deep into the bottom land of annular groove, the size of inner groove is measured by the rotational angle radial dimension of inner groove being converted into sounding rod, but this dip stick when measuring often because sounding rod can accurately not ensure and the dead in line of measured bore and offseting in endoporus, can not ensure to cause the measuring head of sounding rod end to contact with the bottom land of inner groove in the plane perpendicular to interior axially bored line, the size measuring the inner groove come like this will be greater than the physical size of inner groove, produce larger error, have a strong impact on measuring accuracy.
Summary of the invention
The object of the present invention is to provide the internal circular-grooves aided measurement device that a kind of measuring accuracy is higher.
Internal circular-grooves aided measurement device of the present invention adopts following technical scheme: internal circular-grooves aided measurement device, comprise measuring head, described measuring head comprises two and measures slide block, described measurement slide block is radially slidedly assemblied on positioning tube, described positioning tube has the outer circumference surface for matching with the endoporus inner peripheral surface of measured piece, described internal circular-grooves aided measurement device has unmeasured state and measuring state two states, measure slide block to be fully retracted in positioning tube and positioning tube outer peripheral face is not exposed in its outer end when unmeasured state, measure when measuring state slide block stretch out the outer peripheral face of positioning tube and its outer end for thrust is spacing in outward direction coordinates with the bottom land of inner groove.
When described internal circular-grooves aided measurement device is also included in use lower surface for contacting with the downside cell wall of internal circular-grooves, upper surface is for the support backing plate of the lower end of supporting and location cylinder.
Described two measurement slide blocks are positioned on the straight line of same and positioning tube intersect vertical axis.
The measuring head of internal circular-grooves aided measurement device of the present invention is radially slidedly assemblied on positioning tube, positioning tube has the outer circumference surface for matching with the endoporus inner peripheral surface of measured piece, when measuring, positioning tube is inserted in measured piece endoporus, inner peripheral surface due to the outer peripheral face of positioning tube and measured piece endoporus coincide and coordinates, therefore the dead in line of positioning tube and measured piece endoporus in whole measuring process by the position assurance of positioning tube and measured piece endoporus, the measuring head that radially slide-and-guide is assemblied on positioning tube can contact with the bottom land of inner groove perpendicular to positioning tube axis, the size of inner groove can be measured so accurately.
Further, by arranging support backing plate, when measuring, support backing plate is placed on the downside cell wall of internal circular-grooves, positioning tube is placed directly in and supports on backing plate and can measure, do not need lower end positioning tube being inserted to always endoporus, substantially reduce the length of positioning tube when the endoporus of measured piece is comparatively dark and annular groove is positioned at the upper end of endoporus, make whole measuring process more convenient, save the material manufacturing positioning tube.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of measured piece;
Fig. 2 is the perspective exploded view of a kind of internal circular-grooves aided measurement device embodiment of the present invention;
Fig. 3 is the assembling schematic diagram of positioning tube and measurement slide block in Fig. 2;
Schematic diagram when Fig. 4 is positioning tube insertion measured piece;
Schematic diagram when Fig. 5 is internal circular-grooves aided measurement device of the present invention measurement.
Embodiment
The embodiment of a kind of internal circular-grooves aided measurement device of the present invention: as Figure 2-3, comprise positioning tube 1, positioning tube 1 has the outer circumference surface coordinated that to coincide with the inner peripheral surface of the endoporus of measured piece, the barrel of positioning tube 1 is provided with two radial mounting holes 12 extended, two mounting holes 12 for rectangular opening and mutually correspondence are located at positioning tube axis both sides, the slidable fit that radially leads in mounting hole 12 has measures slide block 2, measure slide block 2 be rectangular block and be positioned on the straight line of same and positioning tube intersect vertical axis, be illustrated in figure 3 the assembly relation measuring slide block 2 and positioning tube 1, measure slide block 2 mutual away from and the two ends can stretching out positioning tube 1 are retaining tips 21, retaining tips is circular arc, retaining tips is for contacting with the bottom land of measured bore annular groove and the spacing cooperation of block on the direction away from positioning tube axis in use, internal circular-grooves aided measurement device of the present invention in use, positioning tube 1 is inserted in measured piece endoporus, endoporus inner peripheral surface due to the outer circumference surface of positioning tube and measured piece coincide and coordinates, the endoporus dead in line of positioning tube and measured piece, now promote to measure slide block 2 make it stretch out positioning tube 1 and make the retaining tips of measurement slide block 2 and the bottom land close contact of measured bore annular groove, measure slide block for two and then measure two distances measured between the two ends end face of slide block 2 in positioning tube by vernier caliper or go-no go gauge, this distance is added namely the length of two measurement slide blocks 2 obtain the size of internal circular-grooves, measure slide block 2 can to slide completely the inside of indentation positioning tube 1, interference can not be produced when being entered in measured piece endoporus by positioning tube plug-in mounting.
The endoporus of measured piece 100 be the constant through hole of annular groove upper and lower both sides diameter or for blind hole but the cecum of blind hole be not the side cell wall of annular groove time, as shown in Figure 4, this internal circular-grooves aided measurement device also comprises support backing plate 3, when measuring, strong point backing plate 3 is placed on the side bottom land 101 of measured bore annular groove, positioning tube is placed on and supports on backing plate 3 and make measurement slide block be positioned at the height corresponding with annular groove bottom land, the length that positioning tube stretches into measured piece endoporus can be reduced like this, reduce the entire length of positioning tube, operate convenient, when the bottom land of the internal circular-grooves of measured piece 100 is curved surface on the axial cross section of annular groove, the maximum radial dimension wanting to measure annular groove needs the maximum groove depth position measuring slide block and annular groove to be positioned at sustained height, as shown in Figure 5, when annular groove is V-type annular groove, need the axial location of the mounting hole set on positioning tube to make to measure the centre position that slide block just corresponds to annular groove when positioning tube loads the endoporus of measured piece, in this case, need whether to have according to positioning tube to support the axial location that backing plate support sets mounting hole, when there being support backing plate to support, support the half that should equal annular groove axial depth at the bottom of the height of backing plate and positioning tube cylinder to the axial distance sum of the retaining tips measuring slide block, the retaining tips measuring slide block can be set to top tip structure, so that retaining tips contacts with at the bottom of the most deep trouth of V-type groove.
In the present embodiment, measure slide block for two and be positioned at one with on the straight line of positioning tube intersect vertical axis, in other embodiments, two measurement slide blocks can parallel interval be arranged, and now need when measuring to measure to measure the distance at measurement slide block bearing of trend that slide block is positioned at the two ends of positioning tube.
Internal circular-grooves aided measurement device of the present invention can ensure when measuring to measure slide block perpendicular to interior axially bored line, measurement data is accurate, the measurement of various annular groove can be applicable to, structure is simple, easy to operate, endoporus measured by the survey instrument adopting this internal circular-grooves aided measurement device that vernier caliper or go-no go gauge etc. can be coordinated general, reduces production cost.
Claims (3)
1. internal circular-grooves aided measurement device, comprise measuring head, described measuring head comprises two and measures slide block, it is characterized in that, described measurement slide block is radially slidedly assemblied on positioning tube, described positioning tube has the outer circumference surface for matching with the endoporus inner peripheral surface of measured piece, described internal circular-grooves aided measurement device has unmeasured state and measuring state two states, measure slide block to be fully retracted in positioning tube and positioning tube outer peripheral face is not exposed in its outer end when unmeasured state, measure when measuring state slide block stretch out the outer peripheral face of positioning tube and its outer end for thrust is spacing in outward direction coordinates with the bottom land of inner groove.
2. internal circular-grooves aided measurement device according to claim 1, it is characterized in that, when described internal circular-grooves aided measurement device is also included in use lower surface for contacting with the downside cell wall of internal circular-grooves, upper surface is for the support backing plate of the lower end of supporting and location cylinder.
3. internal circular-grooves aided measurement device according to claim 1 and 2, is characterized in that, described two measurement slide blocks are positioned on the straight line of same and positioning tube intersect vertical axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410744932.7A CN104390553A (en) | 2014-12-09 | 2014-12-09 | Auxiliary measuring device of inner bore ring slot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410744932.7A CN104390553A (en) | 2014-12-09 | 2014-12-09 | Auxiliary measuring device of inner bore ring slot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104390553A true CN104390553A (en) | 2015-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410744932.7A Pending CN104390553A (en) | 2014-12-09 | 2014-12-09 | Auxiliary measuring device of inner bore ring slot |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106123740A (en) * | 2016-08-26 | 2016-11-16 | 山东钢铁股份有限公司 | A kind of forklift door frame channel-section steel certain height inner width survey tool and measuring method thereof |
| CN106643374A (en) * | 2015-10-28 | 2017-05-10 | 科华控股股份有限公司 | Special-purpose testing fixture for detecting position of workpiece bore semi-trapezoid ring groove |
| CN108286922A (en) * | 2018-01-12 | 2018-07-17 | 杭州前进齿轮箱集团股份有限公司 | A kind of measurement head for vernier caliper measurement deep trouth |
| CN110174066A (en) * | 2019-04-22 | 2019-08-27 | 陕西法士特齿轮有限责任公司 | Cubing and processing method and its method of inspection of the sharp slot to axial end distance on axis |
| CN110657730A (en) * | 2019-08-27 | 2020-01-07 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Internal groove diameter measuring device and measuring method |
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| DE4116815A1 (en) * | 1991-05-23 | 1992-11-26 | Schwenk Oskar Gmbh & Co Kg | Spreading sensor for length measurement in hollow chambers, esp. bores - has tubes with slotted end and radial sensing pins on diametrically opposed end apertures acted upon by needle-shaped spreading pin |
| CN101319864A (en) * | 2008-06-25 | 2008-12-10 | 无锡富瑞德精密机械有限公司 | Plug gauge head pore diameter measurement mechanism |
| CN203518911U (en) * | 2013-08-27 | 2014-04-02 | 常州华尔澜工具有限公司 | Aperture measurement device |
| CN203837627U (en) * | 2014-05-15 | 2014-09-17 | 常州机电职业技术学院 | Measuring device for inner hole groove |
| CN204346279U (en) * | 2014-12-09 | 2015-05-20 | 许继集团有限公司 | A kind of internal circular-grooves aided measurement device |
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2014
- 2014-12-09 CN CN201410744932.7A patent/CN104390553A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4116815A1 (en) * | 1991-05-23 | 1992-11-26 | Schwenk Oskar Gmbh & Co Kg | Spreading sensor for length measurement in hollow chambers, esp. bores - has tubes with slotted end and radial sensing pins on diametrically opposed end apertures acted upon by needle-shaped spreading pin |
| CN101319864A (en) * | 2008-06-25 | 2008-12-10 | 无锡富瑞德精密机械有限公司 | Plug gauge head pore diameter measurement mechanism |
| CN203518911U (en) * | 2013-08-27 | 2014-04-02 | 常州华尔澜工具有限公司 | Aperture measurement device |
| CN203837627U (en) * | 2014-05-15 | 2014-09-17 | 常州机电职业技术学院 | Measuring device for inner hole groove |
| CN204346279U (en) * | 2014-12-09 | 2015-05-20 | 许继集团有限公司 | A kind of internal circular-grooves aided measurement device |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106643374A (en) * | 2015-10-28 | 2017-05-10 | 科华控股股份有限公司 | Special-purpose testing fixture for detecting position of workpiece bore semi-trapezoid ring groove |
| CN106123740A (en) * | 2016-08-26 | 2016-11-16 | 山东钢铁股份有限公司 | A kind of forklift door frame channel-section steel certain height inner width survey tool and measuring method thereof |
| CN106123740B (en) * | 2016-08-26 | 2020-01-07 | 山东钢铁股份有限公司 | Tool and method for measuring specific height and inner width of forklift gantry channel steel |
| CN108286922A (en) * | 2018-01-12 | 2018-07-17 | 杭州前进齿轮箱集团股份有限公司 | A kind of measurement head for vernier caliper measurement deep trouth |
| CN110174066A (en) * | 2019-04-22 | 2019-08-27 | 陕西法士特齿轮有限责任公司 | Cubing and processing method and its method of inspection of the sharp slot to axial end distance on axis |
| CN110657730A (en) * | 2019-08-27 | 2020-01-07 | 中国航空工业集团公司金城南京机电液压工程研究中心 | Internal groove diameter measuring device and measuring method |
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Application publication date: 20150304 |