CN204027504U - A kind of inner bore chamfering measurement mechanism - Google Patents
A kind of inner bore chamfering measurement mechanism Download PDFInfo
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- CN204027504U CN204027504U CN201420337341.3U CN201420337341U CN204027504U CN 204027504 U CN204027504 U CN 204027504U CN 201420337341 U CN201420337341 U CN 201420337341U CN 204027504 U CN204027504 U CN 204027504U
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- inner bore
- pressure head
- bore chamfering
- measurement
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- 238000005259 measurement Methods 0.000 title claims abstract description 60
- 238000003754 machining Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000000875 corresponding Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 235000020127 ayran Nutrition 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000001105 regulatory Effects 0.000 description 1
Abstract
The utility model belongs to machining measurement mechanism, be definitely a kind of can measurement products inner bore chamfering and the measurement mechanism of the inner bore chamfering degree of depth.Comprise measuring table and the vertical gauge stand being fixed thereon, one side of described gauge stand middle and upper part is fixed with the crossbeam of horizontal positioned, described crossbeam is fixed with dial gauge away from the top of one end of described gauge stand, crossbeam is run through in the lower end of described dial gauge, and be connected with downward sounding rod, the end of described sounding rod lower end is connected with measurement pressure head, the end of described measurement pressure head lower end is conical, and conical pointed end, the cone angle of described measurement pressure head is greater than or less than the twice of the inner bore chamfering angle of measured product.Be related to size by the twice that changes the cone angle of conical measurement pressure head and the inner bore chamfering angle of measured product, measure angle and the degree of depth of product inner bore chamfering; Described apparatus structure is simple, easy to use, and cost is low, is convenient at the scene the quick and precisely quality of testing product.
Description
Technical field
The utility model belongs to machining measurement mechanism, be definitely a kind of can measurement products inner bore chamfering and the measurement mechanism of the inner bore chamfering degree of depth.
Background technology
In mechanical processing industry, often need on product, hole, concentrate or needs are installed in order to reduce stress, need to carry out chamfer machining at endoporus place.Whether whether exact relationship is qualified to the quality of product for the angle of interior chamfering, diameter.
At present, be that production standard feeler gauge carries out large bulk measurement for the measurement one of the angle of the interior chamfering of product, measuring accuracy is not high, cannot meet the requirement of high-precision product.Also exist another kind of mode to use exactly projector, but use projector product need to be cut open from center, can cause damage to product like this, and it is lower to measure efficiency, can not meet the strict demand of product to quality.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of inner bore chamfering measurement mechanism, is intended to solve in the process of product processing, and, measuring process not high to the chamfering measuring accuracy of product endoporus damaged the problem of product quality.
The technical scheme that the utility model solves the problems of the technologies described above is as follows: a kind of inner bore chamfering measurement mechanism, comprise measuring table and the vertical gauge stand being fixed thereon, one side of described gauge stand middle and upper part is fixed with the crossbeam of horizontal positioned, described crossbeam is fixed with dial gauge away from the top of one end of described gauge stand, crossbeam is run through in the lower end of described dial gauge, and be connected with downward sounding rod, the end of described sounding rod lower end is connected with measurement pressure head, the end of described measurement pressure head lower end is conical, and conical pointed end, the cone angle of described measurement pressure head is greater than or less than the twice of the inner bore chamfering angle of measured product.
The beneficial effects of the utility model are: by changing the different measurement pressure head of cone angle, in the time that the cone angle of described measurement pressure head is less than the twice of interior orifice angle of measured product, when measurement, measure pressure head and can be deep into product endoporus depths, the size of measurement products surface and endoporus depths respectively, thereby calculate the height of chamfering, and then calculate the angle of chamfering by trigonometric function, can realize easily the nondestructive measurement of inner bore chamfering angle; In the time that the cone angle of described measurement pressure head is greater than the twice of interior orifice angle of measured product, by measuring moving up and down of pressure head, drive sounding rod moves up and down, thereby the pointer of dial gauge is offset, measure pressure head and prop up measured position, calculate the diameter of chamfering by the reader of dial gauge.Described apparatus structure is simple, easy to use, and cost is low, is convenient at the scene the quick and precisely quality of testing product.
On the basis of technique scheme, the utility model can also do following improvement.
Further, described beam-end is provided with locking device, and the lower end of described dial gauge is fixed on the top of crossbeam away from one end of described gauge stand by locking device.
Adopt the beneficial effect of above-mentioned further scheme to be: by locking device can regulating and controlling dial gauge in the degree of depth running through of described crossbeam.
Further, described locking device adopts the mode of bolt tightening.
Adopt the beneficial effect of above-mentioned further scheme to be: thus fixing dial gauge can not occur because of the pulling force of the measurement pressure head of lower end sliding affecting measuring accuracy in the time measuring.
Further, between described measurement pressure head and described sounding rod, adopt screw thread to be fixedly connected with.
Adopt the beneficial effect of above-mentioned further scheme to be: wearing and tearing occur or damage once measure pressure head, being convenient for changing.
Further, being connected in same vertical direction of described dial gauge and sounding rod and described measurement pressure head.
Adopt the beneficial effect of above-mentioned further scheme to be: ensure to measure pressure head in the time measuring endoporus, measuring shakes the head is vertical all the time, can not draw local derviation to cause measuring accuracy because of measurement inaccurate.
Brief description of the drawings
Fig. 1 is the structural representation of a kind of inner bore chamfering diameter measuring device of the present utility model;
Fig. 2 is the use view of inner bore chamfering diameter measuring device of the present utility model;
Fig. 3 is the schematic cross-section of measured product of the present utility model;
Fig. 4 is the structural representation of a kind of inner bore chamfering angle measurement unit of the present utility model.
In accompanying drawing, the list of parts of each label representative is as follows:
1, measuring table, 2, gauge stand, 3, dial gauge, 4, sounding rod, 5, measure pressure head, 6, locking device, 7, screw thread, 8, product, 9, crossbeam.
Embodiment
Below in conjunction with accompanying drawing, principle of the present utility model and feature are described, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
As shown in Figure 1, a kind of structural representation of inner bore chamfering diameter measuring device.The gauge stand 2 that comprises measuring table 1 and be vertically fixed thereon, one side of described gauge stand 2 middle and upper parts is fixed with horizontal positioned crossbeam 9, the projection from top to bottom of described crossbeam 9 drops on measuring table 1 just, described crossbeam 9 is fixed with dial gauge 3 away from the top of described gauge stand 2 one end, crossbeam is run through in the lower end of wherein said dial gauge 3, and be connected with downward sounding rod 4, the end of the lower end of described sounding rod 4 is connected and is measured pressure head 5 by screw thread 7, the end of described measurement pressure head 5 is conical, and conical pointed end, the cone angle of described measurement pressure head 5 is greater than or less than the twice of the inner bore chamfering angle of measured product 8.
As shown in Figure 2, the use view of inner bore chamfering diameter measuring device; As shown in Figure 3, the schematic cross-section of measured product 8.
The measurement pressure head 5 that adopts cone angle to be greater than the twice of the inner bore chamfering angle of measured product 8 is measured the diameter of inner bore chamfering.
Metering system is as follows particularly: suppose that measured product 8 inner bore chamferings are α, making cone angle is the measurement pressure head 5 of 2 β, β > α, can avoid measuring pressure head 5 tips and be deep into endoporus, and directly measurement pressure head 5 and dial gauge 3 are linked together, keep measuring pressure head 5 vertical.
First, tested product 8 is placed on measuring table, mobile product 8, the A point of the inner bore chamfering both sides of measurement products 8 and the height that B is ordered are designated as respectively A and B respectively to make to measure pressure head 5, distance between A point and B point can be expressed as the outer bore dia 2R of product 8, the theoretical level C=abs (A+B)/2 that calculates measured product 8 endoporus centers, wherein function abs asks absolute value;
Then, product 8 is moved to endoporus center to locating tab assembly pressure head 5, make to measure pressure head 5 and be displaced downwardly to product 8 chamfering places, till propping up endoporus upper end-face edge and can not moving down again, with reference to figure 2, read the reading D of dial gauge, now, the degree of depth of the insertion product endoporus of measurement pressure head 5 is Y=D-C;
According to trigonometric function relation, calculate the diameter W=2R=2YTan β of inner bore chamfering.
As shown in Figure 4, a kind of structural representation of inner bore chamfering angle measurement unit.The twice measurement pressure head 5 that adopts cone angle to be less than the inner bore chamfering angle of measured product 8 is measured the angle of inner bore chamfering.
Metering system is as follows particularly: suppose that tested product 8 inner bore chamferings are α, choosing cone angle is the measurement pressure head 5 of 2 β, β < α, can make to measure pressure head 5 tips and be deep into endoporus, measurement pressure head 5 and dial gauge 3 are linked together, keep measuring pressure head 5 vertical.
The measurement pressure head 5 that uses above-mentioned cone angle to be greater than the twice of the inner bore chamfering angle of measured product 8 is measured the overall diameter 2R of inner bore chamfering, utilizes micrometer inside caliper to measure diameter of bore 2r; Wherein set up the center of circle that E point is endoporus, the inside radius r that the horizontal range that E point and F are ordered is endoporus, the external radius R that the horizontal range that E point and B are ordered is endoporus, measure pressure head 5 lower end position circular cone cusps and be established as G point, the distance that G point and endoporus center of circle E are ordered is h, and the vertical range that G point and B are ordered is to measure the total depth H of pressure head insertion product.
First, measured product 8 is placed on measuring table, make to measure pressure head 5 respectively the A point of the inner bore chamfering both sides of measurement products 8 and the height that B is ordered be respectively A and B, calculate the theoretical level C=abs (A+B)/2 at measured product 8 endoporus centers, wherein function abs asks absolute value; Then, measurement pressure head 5 is deep in product 8 endoporus, makes to measure pressure head 5 edges and prop up endoporus upper end-face edge, read registration D from dial gauge 3, measure pressure head 5 and be inserted into the total depth H=D-C in product 8;
The cone angle of known measurement pressure head 5 is that 2 β and interior pore radius are r, calculates and measures pressure head and enter into the degree of depth h=r/tan β at endoporus center according to trigonometric function relation;
With reference to figure 2, measuring pressure head 5 is the vertical range that B point is corresponding with F point in the relative depth at chamfering place, is expressed as △ H=H-h, and the overall diameter of inner bore chamfering and inner bore chamfering endoporus radius size be poor is the horizontal range that B point is corresponding with F point, is expressed as △ R=R-r;
Finally, calculate the angle [alpha] of inner bore chamfering '=arctan (△ R/ △ H) accurately according to trigonometric function relation.
In the time that the cone angle of described measurement pressure head 5 is less than the twice of interior orifice angle of measured product 8, when measurement, measure pressure head 5 and can be deep into product 8 endoporus depths, the size of measurement products 8 surfaces and endoporus depths respectively, thereby calculate the height of chamfering, and then calculate the angle of chamfering by trigonometric function, can realize easily the nondestructive measurement of inner bore chamfering angle; In the time that the cone angle of described measurement pressure head 5 is greater than the twice of interior orifice angle of measured product 8, by measuring moving up and down of pressure head 5, drive sounding rod 4 to move up and down, thereby the pointer of dial gauge 3 is offset, measure pressure head 5 and prop up measured position, calculate the diameter of chamfering by the reader of dial gauge 3.Described apparatus structure is simple, easy to use, and cost is low, is convenient at the scene quick and precisely angle and the diameter of the inner bore chamfering of testing product.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (5)
1. an inner bore chamfering measurement mechanism, it is characterized in that, comprise measuring table and the vertical gauge stand being fixed thereon, one side of described gauge stand middle and upper part is fixed with the crossbeam of horizontal positioned, described crossbeam is fixed with dial gauge away from the top of one end of described gauge stand, crossbeam is run through in the lower end of described dial gauge, and be connected with downward sounding rod, the end of described sounding rod lower end is connected with measurement pressure head, the end of described measurement pressure head lower end is conical, and conical pointed end, the cone angle of described measurement pressure head is greater than or less than the twice of the inner bore chamfering angle of measured product.
2. a kind of inner bore chamfering measurement mechanism according to claim 1, is characterized in that, described beam-end is provided with locking device, and the lower end of described dial gauge is fixed on the top of crossbeam away from one end of described gauge stand by locking device.
3. a kind of inner bore chamfering measurement mechanism according to claim 2, is characterized in that, described locking device adopts the mode of bolt tightening.
4. a kind of inner bore chamfering measurement mechanism according to claim 1, is characterized in that, between described measurement pressure head and described sounding rod, adopts screw thread to be fixedly connected with.
5. according to the arbitrary described a kind of inner bore chamfering measurement mechanism of claim 1 to 4, it is characterized in that, described dial gauge is connected in same vertical direction with sounding rod and described measurement pressure head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420337341.3U CN204027504U (en) | 2014-06-23 | 2014-06-23 | A kind of inner bore chamfering measurement mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420337341.3U CN204027504U (en) | 2014-06-23 | 2014-06-23 | A kind of inner bore chamfering measurement mechanism |
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| CN204027504U true CN204027504U (en) | 2014-12-17 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104713459A (en) * | 2015-04-01 | 2015-06-17 | 航天精工股份有限公司 | Double-sphere measurement method for counter bore angle |
| CN106705883A (en) * | 2016-12-29 | 2017-05-24 | 苏州逸美德科技有限公司 | Circular hole chamfering radian measuring device and method |
| CN107796284A (en) * | 2017-09-28 | 2018-03-13 | 中国航发动力股份有限公司 | A kind of measuring tool and measuring method of end face V-groove depth |
-
2014
- 2014-06-23 CN CN201420337341.3U patent/CN204027504U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104713459A (en) * | 2015-04-01 | 2015-06-17 | 航天精工股份有限公司 | Double-sphere measurement method for counter bore angle |
| CN104713459B (en) * | 2015-04-01 | 2017-09-22 | 航天精工股份有限公司 | A kind of double ball mensurations of counterbore angle |
| CN106705883A (en) * | 2016-12-29 | 2017-05-24 | 苏州逸美德科技有限公司 | Circular hole chamfering radian measuring device and method |
| CN107796284A (en) * | 2017-09-28 | 2018-03-13 | 中国航发动力股份有限公司 | A kind of measuring tool and measuring method of end face V-groove depth |
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