CN201867147U - Tooling for detecting large-diameter circular parts - Google Patents
Tooling for detecting large-diameter circular parts Download PDFInfo
- Publication number
- CN201867147U CN201867147U CN2010205579018U CN201020557901U CN201867147U CN 201867147 U CN201867147 U CN 201867147U CN 2010205579018 U CN2010205579018 U CN 2010205579018U CN 201020557901 U CN201020557901 U CN 201020557901U CN 201867147 U CN201867147 U CN 201867147U
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- arc
- shaped rail
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- axis
- diameter
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a tooling for detecting large-diameter circular parts, which comprises a circular arc-shaped guide rail, two guide sleeves and a vernier scale seat, wherein two guide shafts which extend outwards radially are movably assembled on the circular arc-shaped guide rail along the radial direction, and the extension lines of the axial lines of the two guide shafts both penetrate the center of a circle of the circular arc-shaped guide rail; the two guide sleeves are respectively matched with the two guide shafts by sliding insertion sleeve joint, two extension arms with equivalent length are fixedly arranged on two opposite sides of each one of the guide sleeves by radial extension corresponding to the chord length of a detected workpiece, the extension arms on the two guide sleeves are positioned on a same plane with the circular arc-shaped guide rail, and the two guide sleeves are hinged through the adjacent extension arms and a hinge shaft; and the vernier scale seat is hinged on the hinge shaft, a vernier main scale is matched in the vernier scale seat by sliding insertion sleeve joint, one end of the vernier main scale is fixed on the circular arc-shaped guide rail, and the axial extension line of the vernier main scale penetrates the center of the circle of the circular arc-shaped guide rail. The tooling has the characteristics of simple structure, convenience in use, high measurement precision and the like.
Description
Technical field
The utility model relates to a kind of frock that is used to measure the large-diameter circular diameter of part.
Background technology
In the big machinery processing and manufacturing, run into the diameter measurement problem of some major diameter parts through regular meeting, for example on some large electric equipment, need to use a kind of diameter reach 2000mm, error at 0.3mm with interior joint flange.Measuring method commonly used at present can be divided into following several:
1., directly adopt large-scale vernier caliper or milscale to measure.Adopt this method, it is along with the increase of diameter of part, and the volume of vernier caliper or milscale and weight certainly will increase thereupon, bring difficulty to measurement.
2., measure correlative by instruments such as small-sized slide calliper rule commonly used or milscales and calculate diameter of a circle.Owing to have conversion error in the computation process, therefore the measuring accuracy of this method is lower, can not reach the requirement of machining precision.
3., adopt photoelectric measurement instrument to measure diameter of a circle, but the cost of the photoelectric measurement instrument that this method is used is too high, makes that the measurement cost of circular diameter is higher, is unsuitable for promoting.
The utility model content
The purpose of this utility model is: a kind of simple in structure, easy to use, detection frock of measuring accurate large-diameter circular diameter of part is provided.
The technical scheme of the detection frock of large-diameter circular part of the present utility model is: a kind of detection frock of large-diameter circular diameter of part comprises:
One arc-shaped rail, on this arc-shaped rail radially activity be equipped with the two outward extending radially axis of guides, the axis extended line of two axis of guides all passes the center of circle of arc-shaped rail;
Two orienting sleeves that cooperate respectively at described two axis of guide slip sleeves, on each orienting sleeve relative both sides respectively the chord length of the corresponding workpiece of surveying radially extend and be fixed with two adjutages that length is suitable, the end of each adjutage is respectively arranged with the detection head that is used to aim at the tested part cylindrical, each adjutage and described arc-shaped rail on two orienting sleeves are in same plane, and the detection head between two orienting sleeves on the adjacent adjutage is hinged by hinge axis;
One vernier scale, this vernier scale comprises vernier rod support and the vernier main scale that the slip sleeve cooperates, described vernier rod support cooperates with described hinge axis, one end of described vernier main scale is fixed on the described arc-shaped rail, the other end extends axially and passes described vernier rod support, and the axially-extending line of described vernier main scale passes the center of circle of described arc-shaped rail.
On the end face of arc-shaped rail one end, axially offer blind hole at described vernier rod support, the axis of this blind hole and described vernier main scale are in the same way, be provided with a swivel nut in the blind hole, this swivel nut is located with the vernier rod support by the corresponding slotted hole of offering on the pilot pin that radially is convexly equipped with on its outer peripheral face and the vernier rod support and is slidingly matched, be installed with one and adjust screw mandrel in described swivel nut, the other end of this adjustment screw mandrel extends axially and is threaded with described arc-shaped rail.
An orienting sleeve therein convexes with linking arm near on the adjutage of hinge axis towards the arc-shaped rail direction, the end of linking arm is hinged with a connecting rod, one end of this connecting rod is connected with described pilot pin, the other end of connecting rod is hinged with one and adjusts handle, and the middle part of this adjustment handle is hinged on this orienting sleeve.
On described linking arm, be provided with to cooperate and be used to adjust the reset torsion spring of trend of handle with described connecting rod.
The two ends of described arc-shaped rail radially offer groove respectively, one end of described each axis of guide is respectively equipped with the countervane that is slidingly matched with corresponding groove, is rotatably equipped with the idler wheel mechanism that rolls and cooperate with the arc-shaped rail inner and outer circumferential surfaces on each countervane respectively.
Described idler wheel mechanism is made up of two rollers that cooperate with described arc-shaped rail outer peripheral face rolling and a roller that cooperates with the rolling of arc-shaped rail inner peripheral surface, a described roller that cooperates with the rolling of arc-shaped rail inner peripheral surface is positioned on the axially-extending line of the described axis of guide, roll two rollers cooperating of described and arc-shaped rail outer peripheral face are symmetricly set in the both sides of described axis of guide axially-extending line, in the outer race of described three rollers ring spring are housed.
On described two orienting sleeves, be fixed with handle respectively.
It is little that detection frock of the present utility model has a volume, simple in structure, easy to use, characteristics such as manufacturing cost is lower, and it has made full use of the cylindrical of the principle of three-point circle arc with the corresponding workpiece of surveying of three points of two orienting sleeves that are hinged, can measure between two orienting sleeves hinge axis easily to the distance between the arc-shaped rail by vernier scale, by calculating hinge axis can obtain the workpiece of surveying to the distance of arc-shaped rail and the radius of arc-shaped rail diameter, there is not conversion error therebetween, thereby measure very accurate, can replace existing survey instrument fully, be suitable in the big machinery processing manufacturing industry, promoting widely.
Description of drawings
Fig. 1 is the structural representation of the detection frock of the utility model large-diameter circular diameter of part;
Fig. 2 is the side view of Fig. 1;
Fig. 3 is the rear view of Fig. 1;
Fig. 4 is the A-A cut-open view among Fig. 3.
Embodiment
As shown in Figures 1 to 4, the detection frock of large-diameter circular diameter of part of the present utility model comprises: the arc-shaped rail 2 of a known diameter, radially activity is equipped with the two outward extending radially axis of guides 5 on arc-shaped rail 2, the axially-extending line of two axis of guides 5 is the center of circle by arc-shaped rail 2 all, wherein, radially offer the groove that runs through its inner and outer circumferential surfaces on the end face at the two ends of this arc-shaped rail 2 respectively, two axis of guides 5 respectively with two groove corresponding matching, the end of two axis of guides 5 is fixed with the countervane that is used for inserting corresponding groove respectively, on the countervane of each axis of guide 5 end, be respectively arranged with the idler wheel mechanism of forming by three rollers 4, wherein one of them roller on each countervane rolls with the inner peripheral surface of arc-shaped rail 2 and cooperates, this roller is positioned on the axially-extending line of the corresponding axis of guide 5, two rollers roll with the outer peripheral face of arc-shaped rail 2 and cooperate in addition, this two rollers symmetry is divided into the both sides of the axis of guide 5 axially-extending lines, these three rollers are by a spring constraint that is sleeved on the circle of its periphery simultaneously, make each roller keep contacting with the tight of arc-shaped rail 2, to guarantee that three rollers cooperate with the inner and outer circumferential surfaces of arc-shaped rail 2 all the time, can guarantee the axis of guide on arc-shaped rail 2 when mobile by this three rollers location, its axially-extending line passes the center of circle of arc-shaped rail 2 all the time.
On two axis of guides 5 respectively slip cap orienting sleeve 6 is housed, relative both sides are radially extended two adjutages that length is suitable that are provided with the excircle of workpiece chord length of the surveying setting of corresponding institute respectively on the outer peripheral face of two orienting sleeves 6, end at each adjutage is respectively arranged with the detection head 7 that is used to aim at the tested part cylindrical, the detection head 7 of two adjacent adjutages is hinged by hinge axis between two orienting sleeves 6, makes that each adjutage and the arc-shaped rail 2 on two orienting sleeves 6 is in the same plane.On hinge axis and be hinged with a vernier rod support 10, sliding to wear in this vernier rod support 10 is provided with vernier main scale 8, and an end of this vernier main scale 8 is fixed on the center of arc-shaped rail 2, thereby makes the axis of vernier main scale 8 pass the center of circle of arc-shaped rail 2.Arc-shaped rail 2, the axis of guide 5, orienting sleeve 6 and vernier rod support 10 become the basic frame structure of the detection frock of the utility model large-diameter circular diameter of part with vernier main scale 8 mutual group.
For the ease of in measurement, finely tuning to guarantee the requirement of measuring accuracy, on the end face of arc-shaped rail 2 one ends, axially offer blind hole at vernier rod support 10, the axis of this blind hole and vernier main scale 8 are in the same way, be provided with a swivel nut 9 in the blind hole, this swivel nut 9 is located with vernier rod support 10 by the corresponding slotted hole of offering on the pilot pin that radially is convexly equipped with on its outer peripheral face and the vernier rod support 10 and is slidingly matched, be installed with one and adjust screw mandrel 1 in this swivel nut 10, the other end of this adjustment screw mandrel 1 extends axially and is threaded with arc-shaped rail 2.
In order to be convenient to operation more, an orienting sleeve 6 therein convexes with linking arm near on the adjutage of hinge axis towards arc-shaped rail 2 directions, the end of linking arm is hinged with a connecting rod 11, one end of this connecting rod 11 is connected with pilot pin on the swivel nut 9, the other end of connecting rod 11 is hinged with one and adjusts handle 13, the middle part of this adjustment handle 13 is hinged on this orienting sleeve 6, also is provided with to cooperate with connecting rod 11 on linking arm to be used to adjust the torsion spring that handle is in the trend of resetting.On two orienting sleeves 6, also be fixed with a handle of holding when using respectively.
Use to this detection frock describes below: at first, because wherein two orienting sleeves 6 are hinged, therefore only have two between two orienting sleeves and be positioned at the end points of adjutage end in the outside and three points of pin joint of two inboard adjutages, two detection heads 7 that are positioned at the adjutage end in the outside are defined as A point and B point respectively, the hinged detection head 7 of two inboard adjutages is defined as the O point, thereby can utilize the principle of three fixed circles to determine a circle.Then with vernier scale to zero, should detect frock earlier and adjust near the minimum measuring position, the definite circle of three points of A O B this moment is as basic circle and record its numerical value, numerical value is preferably integer, so that calculating is engraved in this numerical value on the arc guide rail.
When measuring, screw mandrel 1 is adjusted in rotation earlier, make the size of 3 the determined circles of A O B on two orienting sleeves 6 be slightly larger than the tested part size, hold handle with two handgrips and will detect three points of A O B of orienting sleeve 6 on the frock near the tested part surface, 2 of A on two orienting sleeves, B contact with the excircle of tested part, the O point does not contact, and three points of A O B this moment determine that the center of circle of circle and the center of circle of tested part do not overlap.Pull adjustment handle 13 with hand, adjusting handle 13 rotates around its pin joint, an end of adjusting handle 13 close vernier scales is moved and drivening rod 11 rotations to arc-shaped rail 2 directions, connecting rod 11 rotates the drive pilot pin around its pin joint and moves to the direction away from arc-shaped rail 2, pilot pin drives swivel nut 9 simultaneously and moves, swivel nut 9 moves in the same way by adjusting screw mandrel 1 pulling arc-shaped rail 2, the trend that arc-shaped rail 2 mobile has the center of circle of breaking the circle that three points of A O B determine to overlap with the center of circle of arc-shaped rail 2, the condition that must overlap for the center of circle that keeps the definite circle of circle that three points of A O B determine and arc-shaped rail 2, the O point also certainly will move in the same way with arc-shaped rail 2, thereby outer peripheral face near tested part, and finally contact with this part outer peripheral face, reach tested part, 2 three centers of circle of circle that three points of A O B are determined and arc-shaped rail overlap.At this moment the reading according to vernier scale calculates the diameter that just can obtain tested part.
When concrete application, because the size of tested part is very big sometimes, length that like this certainly will will prolong two axis of guides, it is very heavy thereby the volume that can cause this detection frock strengthens, using can be very inconvenient, therefore every suit detects frock and can prepare several arc-shaped rails that are in the different-diameter scope more, during use, according to the arc-shaped rail of tested part size Selection in this scope.
Claims (7)
1. the detection frock of a large-diameter circular diameter of part is characterized in that it comprises:
One arc-shaped rail, this circumferential slidable fit in arc-shaped rail upper edge has the two outward extending radially axis of guides, and the axis extended line of two axis of guides all passes the center of circle of arc-shaped rail;
Two orienting sleeves that cooperate respectively at described axis of guide slip sleeve, on each orienting sleeve relative both sides respectively the chord length of the corresponding workpiece of surveying radially extend and be fixed with two adjutages that length is suitable, the end of each adjutage is respectively arranged with the detection head that is used to aim at the tested part cylindrical, each adjutage and described arc-shaped rail on two orienting sleeves are in same plane, and adjutage adjacent between two orienting sleeves is hinged by hinge axis;
One vernier scale, this vernier scale comprises vernier rod support and the vernier main scale that the slip sleeve cooperates, described vernier rod support cooperates with described hinge axis, one end of described vernier main scale is fixed on the described arc-shaped rail, the other end extends axially and passes described vernier rod support, and the axially-extending line of described vernier main scale passes the center of circle of described arc-shaped rail.
2. the detection frock of large-diameter circular diameter of part according to claim 1, it is characterized in that, on the end face of arc-shaped rail one end, axially offer blind hole at described vernier rod support, the axis of this blind hole and described vernier main scale are in the same way, be provided with a swivel nut in the blind hole, this swivel nut is located with the vernier rod support by the corresponding slotted hole of offering on the pilot pin that radially is convexly equipped with on its outer peripheral face and the vernier rod support and is slidingly matched, be installed with one and adjust screw mandrel in described swivel nut, the other end of this adjustment screw mandrel extends axially and is threaded with described arc-shaped rail.
3. the detection frock of large-diameter circular diameter of part according to claim 2, it is characterized in that, an orienting sleeve therein convexes with linking arm near on the adjutage of hinge axis towards the arc-shaped rail direction, the end of linking arm is hinged with a connecting rod, one end of this connecting rod is connected with described pilot pin, the other end of connecting rod is hinged with one and adjusts handle, and the middle part of this adjustment handle is hinged on this orienting sleeve.
4. the detection frock of large-diameter circular diameter of part according to claim 3 is characterized in that, is provided with to cooperate with described connecting rod on described linking arm to be used to adjust the torsion spring that handle is in the trend of resetting.
5. according to the detection frock of any described large-diameter circular diameter of part of claim 1 to 4, it is characterized in that, the two ends of described arc-shaped rail radially offer groove respectively, one end of described each axis of guide is respectively equipped with the countervane that is slidingly matched with corresponding groove, is rotatably equipped with the idler wheel mechanism that rolls and cooperate with the arc-shaped rail inner and outer circumferential surfaces on each countervane respectively.
6. the detection frock of large-diameter circular diameter of part according to claim 5, it is characterized in that, described idler wheel mechanism is made up of two rollers that cooperate with described arc-shaped rail outer peripheral face rolling and a roller that cooperates with the rolling of arc-shaped rail inner peripheral surface, a described roller that cooperates with the rolling of arc-shaped rail inner peripheral surface is positioned on the axially-extending line of the described axis of guide, roll two rollers cooperating of described and arc-shaped rail outer peripheral face are symmetricly set in the both sides of described axis of guide axially-extending line, in the outer race of described three rollers ring spring are housed.
7. according to the detection frock of any described large-diameter circular diameter of part of claim 1 to 4, it is characterized in that, on described two orienting sleeves, be fixed with handle respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205579018U CN201867147U (en) | 2010-10-12 | 2010-10-12 | Tooling for detecting large-diameter circular parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205579018U CN201867147U (en) | 2010-10-12 | 2010-10-12 | Tooling for detecting large-diameter circular parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201867147U true CN201867147U (en) | 2011-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205579018U Expired - Lifetime CN201867147U (en) | 2010-10-12 | 2010-10-12 | Tooling for detecting large-diameter circular parts |
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| Country | Link |
|---|---|
| CN (1) | CN201867147U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589396A (en) * | 2012-03-21 | 2012-07-18 | 中铁隆昌铁路器材有限公司 | Three-point identifying arc measuring instrument and measuring method |
| CN103162592A (en) * | 2013-03-06 | 2013-06-19 | 中国航空工业集团公司沈阳发动机设计研究所 | Plug-type axially symmetric spray pipe outlet diameter measuring tool |
| CN103727861A (en) * | 2012-10-10 | 2014-04-16 | 张瑞强 | Circular arc radius measuring ruler |
| CN113551581A (en) * | 2021-07-16 | 2021-10-26 | 钱源 | Direct-reading type electric power large-caliber pipeline inner diameter measuring device |
-
2010
- 2010-10-12 CN CN2010205579018U patent/CN201867147U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589396A (en) * | 2012-03-21 | 2012-07-18 | 中铁隆昌铁路器材有限公司 | Three-point identifying arc measuring instrument and measuring method |
| CN102589396B (en) * | 2012-03-21 | 2014-02-26 | 中铁隆昌铁路器材有限公司 | Three-point identifying arc measuring instrument and measuring method |
| CN103727861A (en) * | 2012-10-10 | 2014-04-16 | 张瑞强 | Circular arc radius measuring ruler |
| CN103162592A (en) * | 2013-03-06 | 2013-06-19 | 中国航空工业集团公司沈阳发动机设计研究所 | Plug-type axially symmetric spray pipe outlet diameter measuring tool |
| CN103162592B (en) * | 2013-03-06 | 2015-09-09 | 中国航空工业集团公司沈阳发动机设计研究所 | A kind of plug axisymmetric nozzle outlet diameter measuring tool |
| CN113551581A (en) * | 2021-07-16 | 2021-10-26 | 钱源 | Direct-reading type electric power large-caliber pipeline inner diameter measuring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: PINGGAO ELECTRIC CO., LTD., HENAN Free format text: FORMER OWNER: PINGGAO GROUP CO., LTD. Effective date: 20131210 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 467000 PINGDINGSHAN, HENAN PROVINCE TO: 467001 PINGDINGSHAN, HENAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20131210 Address after: South East of Pingdingshan city in Henan province 467001 No. 22 Patentee after: Pinggao Electric Co., Ltd., Henan Address before: South East of Pingdingshan city in Henan province 467000 No. 22 Patentee before: Pinggao Group Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110615 |