CN201844809U - Universal circular arc measuring seat - Google Patents
Universal circular arc measuring seat Download PDFInfo
- Publication number
- CN201844809U CN201844809U CN2010205929651U CN201020592965U CN201844809U CN 201844809 U CN201844809 U CN 201844809U CN 2010205929651 U CN2010205929651 U CN 2010205929651U CN 201020592965 U CN201020592965 U CN 201020592965U CN 201844809 U CN201844809 U CN 201844809U
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- China
- Prior art keywords
- measuring seat
- digital display
- sheet
- base
- axis
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a universal circular arc measuring seat. At least two pairs of positioning holes (20) and key slots (19) are arranged on a base (1) of the measuring seat, a method for screwing the cylindrical end part of cylindrical end fastening screws (18) into threaded slots of trapezoidal screw threads of lead screws (3) is adopted, the mutual position of a locking sleeve (2) and the base (1) is fixed, the locking sleeve (2) has the effect of a trapezoidal screw nut, and steel balls (8) have the effects of two radial bearings and one thrust bearing. Compared with the circular arc measuring seat adopting two radial bearings and one thrust bearing, the universal circular arc measuring seat has the simplified structure. The measuring seat is matched with a small clamp, and the detection precision problem of large-radius short circular arcs in the geometrical quantity engineering measurement field can be effectively solved.
Description
Technical field
The utility model belongs to the Machining Technology field, particularly a kind of general arc measuring seat.
Background technology
In geometric sense engineering survey field, the accuracy of detection of the short circular shape size of long radius is difficult to guarantee to be how much generally acknowledged difficult points in Measuring and testing field, and the reason that precision is low is that detection and disposal route are improper.Employing model measuring accuracy is low, and adopts special measuring tool complex structure, poor, the cost height of versatility, adopts three-dimensional to detect and calculate the method for radius, can produce big error to 3 orders of magnitude on the circular arc of one of percentage girth.
Summary of the invention
At above-mentioned prior art problems, the utility model provide a kind of simple in structure, have versatility, general arc measuring seat that cost is low, this measuring seat cooperates with small jig, finishes the accurate measurement to the short circular shape size of long radius.
The general arc measuring seat of the utility model comprises that base, lock sleeve, leading screw, rocking arm, horizontal type digital display footage show window, linear bearing, gland, steel ball, handwheel, horizontal type digital display chi, dial framework, dial gauge, sounding rod, micromatic setting and chaining pin, described base is provided with at least two pairs of pilot holes and keyway, the cross section of described keyway is the inverted T shape shape, and described lock sleeve vertically inserts in the base in the mode of interference fit; Linear bearing and gland are equipped with in the inside of described rocking arm, and square groove is arranged at the bottom of described gland; One end of described leading screw has acme thread, and insert in the lock sleeve in the mode of clearance fit, base and lock sleeve are fixed by cylinder end clamping fixed screw, and the cylindrical end of this cylinder end clamping fixed screw partly screws in the thread groove of acme thread of leading screw, the other end of leading screw passes linear bearing in the mode of interference fit, and its end face is provided with ball recess; Described steel ball is put in the ball recess on the leading screw end face, withstands on above the steel ball in the square groove of gland; Described horizontal type digital display footage show window be installed in rocking arm above, described horizontal type digital display chi passes across horizontal type digital display footage and shows window, the front end of horizontal type digital display chi is equipped with dial framework, narrow outer wide groove in one circle is arranged on the periphery of described handwheel, handwheel is positioned at the top of rocking arm, be fixed on the rocking arm by support, and the side of the groove of the periphery of handwheel is attached on the horizontal type digital display chi; Described dial gauge is installed on the dial framework; Described sounding rod be installed in dial framework below, and be attached on the dial gauge, the bottom of sounding rod is equipped with downward chaining pin; Described micromatic setting comprises excentric shaft, adjustment sheet, pressing plate, it is fan-shaped reconciling sheet, on this covering of the fan, deep-slotted chip breaker is arranged, position in the center of circle of this deep-slotted chip breaker has square hole, and the central point of this square hole is on the center line of the middle camber line of the deep-slotted chip breaker of reconciling sheet, described conciliation sheet is connected with base with bolt by groove, the bottom of described excentric shaft is a macro-axis, top is little axle, the misalignment of little axle is in the center of macro-axis, macro-axis inserts in the keyway, and with keyway be clearance fit, the top of little axle is provided with square block, the size of this square block equates with square hole size on the conciliation sheet, this square block inserts in the square hole of reconciling sheet, and described pressing plate is screwed to be pressed in and reconciles on the sheet; The axis of the axis of the center line on the center line of described pilot hole, the keyway length direction, the axis of lock sleeve, leading screw and the macro-axis of excentric shaft all is in the same plane perpendicular to base.
The utility model can solve the accuracy of detection problem of the short circular arc of long radius in the geometric sense engineering survey field effectively, and has versatility; Employing partly screws in the cylindrical end of cylinder end clamping fixed screw mode in the thread groove of acme thread of leading screw, has promptly fixed the mutual alignment of lock sleeve and base, makes lock sleeve just play the effect of trapezoidal nut again, simplifies the structure; The effect of two transverse bearings and a thrust bearing has been played in the use of steel ball, than adopting two transverse bearings and a thrust bearing to simplify the structure, rocking arm can be rotated flexibly in 360 ° of scopes of level.
Description of drawings
Fig. 1 is the front view of the general arc measuring seat of the utility model
Fig. 2 is the vertical view of Fig. 1
Fig. 3 is the application synoptic diagram of the general arc measuring seat of the utility model
Fig. 4 is that the A of Fig. 1 is to partial enlarged drawing
Fig. 5 is the sectional view of Fig. 4 along the B-B line
Fig. 6 is the sectional view of Fig. 4 along the C-C line
Among the figure 1, base 2, lock sleeve 3, leading screw 4, Rocker arm 5, horizontal type digital display footage show window 6, linear bearing 7, gland 8, steel ball 9, handwheel 10, horizontal type digital display chi 11, dial framework 12, dial gauge 13, sounding rod 14, micromatic setting 15, excentric shaft 16, reconcile arc surface 25, chaining pin 26, the groove bolt of the arc groove of sheet 17, pressing plate 18, cylinder end clamping fixed screw 19, keyway 20, pilot hole 21, his-and-hers watches pin 22, small jig 23, part to be measured 24, part to be measured
Embodiment
Below in conjunction with accompanying drawing the utility model is done and to be described in further detail:
The general arc measuring seat of the utility model comprises that base 1, lock sleeve 2, leading screw 3, Rocker arm 4, horizontal type digital display footage show window 5, linear bearing 6, gland 7, steel ball 8, handwheel 9, horizontal type digital display chi 10, dial framework 11, dial gauge 12, sounding rod 13, micromatic setting 14 and chaining pin 25, described base 1 is provided with at least two pairs of pilot holes 20 and keyway 19, the cross section of described keyway 19 is the inverted T shape shape, and described lock sleeve 2 vertically inserts in the base 1 in the mode of interference fit; Linear bearing 6 and gland 7 are equipped with in the inside of described Rocker arm 4, and square groove is arranged at the bottom of described gland 7; One end of described leading screw 3 has acme thread, and insert in the lock sleeve 2 in the mode of clearance fit, base 1 and lock sleeve 2 are fixing by cylinder end clamping fixed screw 18, and the cylindrical end of this cylinder end clamping fixed screw 18 partly screws in the thread groove of acme thread of leading screw 3, the other end of leading screw 3 passes linear bearing 6 in the mode of interference fit, and its end face is provided with ball recess; Described steel ball 8 is put in the ball recess on leading screw 3 end faces, withstands on above the steel ball 8 in the square groove of gland 7; Described horizontal type digital display footage show window 5 be installed in Rocker arm 4 above, described horizontal type digital display chi 10 passes across horizontal type digital display footage and shows window 5, the front end of horizontal type digital display chi 10 is equipped with dial framework 11, narrow outer wide groove in one circle is arranged on the periphery of described handwheel 9, handwheel 9 is positioned at the top of Rocker arm 4, be fixed on the Rocker arm 4 by support, and the side of the groove of the periphery of handwheel 9 is attached on the horizontal type digital display chi 10; Described dial gauge 12 is installed on the dial framework 11; Described sounding rod 13 be installed in dial framework 11 below, and be attached on the dial gauge 12, the bottom of sounding rod 13 is equipped with downward chaining pin 25; Described micromatic setting 14 comprises excentric shaft 15, adjustment sheet 16, pressing plate 17, described conciliation sheet 16 is fan-shaped, on this covering of the fan, deep-slotted chip breaker is arranged, position in the center of circle of this deep-slotted chip breaker has square hole, the central point of this square hole is on the center line of the middle camber line of the deep-slotted chip breaker of reconciling sheet 16, reconciling sheet 16 is connected with base 1 with bolt 26 by groove, the bottom of described excentric shaft 15 is a macro-axis, top is little axle, and the misalignment of little axle is in the center of macro-axis, and macro-axis inserts in the keyway 19, and with keyway 19 be clearance fit, the top of little axle is provided with square block, and the size of this square block equates with square hole size on reconciling sheet 16, in the square hole of this square block insertion conciliation sheet 16; Described pressing plate 17 is screwed to be pressed in and reconciles on the sheet 16; The axis of the axis of the center line on the center line of described pilot hole 20, keyway 19 length directions, the axis of lock sleeve 2, leading screw 4 and the macro-axis of excentric shaft 15 all is in the same plane perpendicular to base.
The application process and the embodiment of the arc measuring seat that the utility model is general are as follows:
Step 1, installation part 23 to be measured, small jig 22, register pin and his-and-hers watches pin 21
Earlier register pin is inserted in the pilot hole 20 of base 1 of the general arc measuring seat of the utility model, then part 23 to be measured is fixed on the small jig 22, end with small jig 22 is enclosed within on the little axle of register pin and excentric shaft 15 again, and register pin, excentric shaft 15 is clearance fit with the assembling of small jig 22, and then load onto and reconcile sheet 16, as shown in Figure 5, rotate adjustment sheet 16 then, driving excentric shaft 15 rotates, because of the center of the little axle of excentric shaft is eccentric, therefore the rotation of excentric shaft 15 can make little axis change in the distance of directions X with respect to the axis of macro-axis, as shown in Figure 4, the rotation of excentric shaft 15 simultaneously can drive small jig 22 again and rotate, and an end of small jig 22 is to be fixed on the register pin, therefore small jig 22 can only be around the rotation of register pin trace, thereby the centerline that reaches the center of the arc surface that makes part 23 to be measured and keyway 19 length directions on the base 1 is in a plane perpendicular to base, then with the groove bolt, nut is small jig 22 fixedly, reconcile sheet 16 and base 1, as shown in Figure 5; In other pilot hole 20, insert his-and-hers watches pin 21 again.
The arc surface 24 of the arc groove of step 2, measurement part to be measured, as shown in Figure 3, specific as follows:
1, adjust the height of sounding rod 13: turn leading screw 3, Rocker arm 4 is risen or descend, when sounding rod 13 during, screw lock-screw at suitable height, fixedly leading screw 3;
2, adjust the position of sounding rod 13: show window 5 slip horizontal type digital display chis 10 along horizontal type digital display footage, thereby driving sounding rod 13 moves, make chaining pin 25 press close to his-and-hers watches pin 21, control hand wheel 9 then, utilize friction force fine setting horizontal type digital display chi 10, the left surface of chaining pin 25 is attached on the right of his-and-hers watches pin 21, promptly is in position 1;
3, his-and-hers watches: this moment, the left surface and the rocking arm centre distance of chaining pin 25 were 300mm-5mm (his-and-hers watches pin 21 radiuses)=295mm, and dial gauge 12 and apparent window 5 numerical value of horizontal type digital display footage all are adjusted to " zero ";
4, measure part 23 to be measured: show window 5 slip horizontal type digital display chis 10 along horizontal type digital display footage, thereby driving sounding rod 13 laterally moves, the left surface of chaining pin 25 is contacted with the arc surface 24 of the arc groove of part to be measured, promptly be in position 2 control hand wheel 9 then, utilize friction force fine setting horizontal type digital display chi 10, make the indicating value of dial gauge 12 be " zero ", and read the numerical value of digital display window 5 in the horizontal type digital display chi, the difference that the 295mm that calculates during with his-and-hers watches deducts this numerical value gained is the radius value of arc surface 24 of the arc groove of part to be measured, rotation rocking arm 3, the jerk value that dial gauge 12 shows is if in desired tolerance, and then the arc surface 24 of the arc groove of part to be measured is qualified.
The horizontal type digital display chi that the utility model adopted also can adopt the grating chi, and measuring error can reach 0.001mm.
Claims (7)
1. general arc measuring seat, it is characterized in that comprising that base (1), lock sleeve (2), leading screw (3), rocking arm (4), horizontal type digital display footage show window (5), linear bearing (6), gland (7), steel ball (8), handwheel (9), horizontal type digital display chi (10), dial framework (11), dial gauge (12), sounding rod (13), micromatic setting (14) and chaining pin (25), described base (1) is provided with pilot hole (20) and keyway (19); Described lock sleeve (2) vertically inserts in the base (1); Linear bearing (6) and gland (7) are equipped with in the inside of described rocking arm (4), and square groove is arranged at the bottom of described gland (7); The end that described leading screw (3) has acme thread inserts in the lock sleeve (2), base (1) and lock sleeve (2) are fixing by cylinder end clamping fixed screw (18), and the cylindrical end of this cylinder end clamping fixed screw (18) partly screws in the thread groove of acme thread of leading screw (3), the other end of leading screw (3) passes linear bearing (6) in the mode of interference fit, and its end face is provided with the bulb-shaped recess groove; Described steel ball (8) is put in the ball recess on the end face of leading screw (3), withstands in the square groove of gland (7) above the steel ball (8); Described horizontal type digital display footage show window (5) be installed in Rocker arm 4 above, described horizontal type digital display chi (10) passes across horizontal type digital display footage and shows window (5), the front end of horizontal type digital display chi (10) is equipped with dial framework (11), narrow outer wide groove in one circle is arranged on the periphery of described handwheel (9), handwheel (9) is positioned at the top of rocking arm (4), be fixed on the rocking arm (4) by support, and the side of the groove of the periphery of handwheel 9 is attached on the horizontal type digital display chi (10); Described dial gauge (12) is installed on the dial framework (11); Described sounding rod (13) be installed in dial framework (11) below, and be attached on the dial gauge (12), the bottom of sounding rod (13) is equipped with downward chaining pin (25); Described micromatic setting (14) comprises excentric shaft (15), adjustment sheet (16), pressing plate (17), described conciliation sheet (16) is fan-shaped, on this covering of the fan, deep-slotted chip breaker is arranged, described conciliation sheet (16) is connected with base 1 with bolt (26) by groove, and the bottom of described excentric shaft (15) is a macro-axis, and top is little axle, the misalignment of little axle is in the center of macro-axis, macro-axis inserts in the keyway (19), and the top of little axle is inserted and reconciled in the sheet (16), and described pressing plate (17) is pressed in reconciles on the sheet (16).
2. general arc measuring seat as claimed in claim 1, the cross section that it is characterized in that described keyway (19) is the inverted T shape shape.
3. general arc measuring seat as claimed in claim 1 is characterized in that the interference fit that is assembled between described lock sleeve (2) and the base (1).
4. general arc measuring seat as claimed in claim 1 is characterized in that the clearance fit that is assembled between described leading screw (3) and the lock sleeve (2).
5. general arc measuring seat as claimed in claim 1 is characterized in that the clearance fit that is assembled between the macro-axis of described excentric shaft (15) and the keyway (19).
6. general arc measuring seat as claimed in claim 1, it is characterized in that having square hole on the described conciliation sheet (16), and the central point of this square hole is on the center line of the middle camber line of the deep-slotted chip breaker of reconciling sheet (16), the top of described little axle is provided with square block, and the size of this square block equates with square hole size on the conciliation sheet (16).
7. general arc measuring seat as claimed in claim 1, the axis that it is characterized in that the macro-axis of the axis of axis, leading screw (4) of center line, the center line on keyway (19) length direction, the lock sleeve (2) of described pilot hole (20) and excentric shaft (15) all are in the same plane perpendicular to base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205929651U CN201844809U (en) | 2010-11-05 | 2010-11-05 | Universal circular arc measuring seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205929651U CN201844809U (en) | 2010-11-05 | 2010-11-05 | Universal circular arc measuring seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201844809U true CN201844809U (en) | 2011-05-25 |
Family
ID=44039697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205929651U Expired - Fee Related CN201844809U (en) | 2010-11-05 | 2010-11-05 | Universal circular arc measuring seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201844809U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103528462A (en) * | 2013-10-17 | 2014-01-22 | 中国北车集团大同电力机车有限责任公司 | Size measuring device |
| CN108180815A (en) * | 2017-12-13 | 2018-06-19 | 重庆厚全科技发展有限公司 | A kind of wheel shaft fixed test device |
| CN111750760A (en) * | 2020-06-10 | 2020-10-09 | 中国航发北京航科发动机控制系统科技有限公司 | Device and method for measuring arc size |
| CN114353635A (en) * | 2021-10-29 | 2022-04-15 | 中国航发西安动力控制科技有限公司 | Device and method for measuring gap between non-full-circle arc surfaces in force application state |
-
2010
- 2010-11-05 CN CN2010205929651U patent/CN201844809U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103528462A (en) * | 2013-10-17 | 2014-01-22 | 中国北车集团大同电力机车有限责任公司 | Size measuring device |
| CN103528462B (en) * | 2013-10-17 | 2016-09-21 | 中国北车集团大同电力机车有限责任公司 | Dimension measuring device |
| CN108180815A (en) * | 2017-12-13 | 2018-06-19 | 重庆厚全科技发展有限公司 | A kind of wheel shaft fixed test device |
| CN111750760A (en) * | 2020-06-10 | 2020-10-09 | 中国航发北京航科发动机控制系统科技有限公司 | Device and method for measuring arc size |
| CN111750760B (en) * | 2020-06-10 | 2022-05-17 | 中国航发北京航科发动机控制系统科技有限公司 | Device and method for measuring arc size |
| CN114353635A (en) * | 2021-10-29 | 2022-04-15 | 中国航发西安动力控制科技有限公司 | Device and method for measuring gap between non-full-circle arc surfaces in force application state |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110525 Termination date: 20161105 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |