CN201251416Y - Pin hole symmetry checking device - Google Patents
Pin hole symmetry checking device Download PDFInfo
- Publication number
- CN201251416Y CN201251416Y CNU2008201209781U CN200820120978U CN201251416Y CN 201251416 Y CN201251416 Y CN 201251416Y CN U2008201209781 U CNU2008201209781 U CN U2008201209781U CN 200820120978 U CN200820120978 U CN 200820120978U CN 201251416 Y CN201251416 Y CN 201251416Y
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- CN
- China
- Prior art keywords
- reference column
- dial gauge
- pin
- base plate
- hole
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- Expired - Fee Related
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- A Measuring Device Byusing Mechanical Method (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The utility model relates to a pin hole symmetry checking device which belongs to the technical field of auxiliary devices used for machining pinholes on a shaft. The pin hole symmetry checking device comprises a soleplate which is provided with a dial indicator positioning post and at least one workpiece positioning post; the dial indicator positioning post and the workpiece positioning post are both vertically arranged and fixed with the soleplate through the lower ends of the dial indictor positioning post and the workpiece positioning post; a dial indicator is mounted on a dial indicator fixing post; the lever of the dial indicator is in a horizontal state, and the tip of the lever points to the workpiece positioning post; and the upper end of the workpiece positioning post is provided with a vertical positioning pin. The pin hole symmetry checking device has simple structure, can conveniently check pinholes, and solves the problems existing in the prior art that the checking of the machining accuracy of the pin holes is difficult without a special device for checking the symmetry of the pin holes, and the like.
Description
Technical field
The utility model relates to a kind of pin-and-hole symmetry verifying attachment, belongs to the technical field at the servicing unit of the enterprising marketing of axle hole processing.
Technical background
In the process of axle, often need be on axle pin hole processing.On mismachining tolerance required, the axis that needs to guarantee pin-and-hole and the axis runout degree of axle were that the symmetry of the pin-and-hole axis both sides that are distributed in axle needs in certain error range, otherwise will cause axle and other parts to cooperate can't packing into of back pin.Yet, be not specifically designed to the device that detects the pin-and-hole symmetry in the prior art, brought difficulty for the detection of the machining precision of pin-and-hole.
Summary of the invention
It is a kind of simple in structure that the utility model purpose is to provide, the pin-and-hole symmetry verifying attachment that can detect pin-and-hole easily, solve the device that is not specifically designed to the check of pin-and-hole symmetry that prior art exists, detected problems such as having brought difficulty for the machining precision of pin-and-hole.
Above-mentioned technical purpose of the present utility model mainly solves by the following technical programs: it comprises base plate, described base plate is provided with dial gauge reference column and at least one workpiece reference column, dial gauge reference column and workpiece reference column all vertically are provided with and all fix by their lower end and base plate, dial gauge is installed on the dial gauge fixed leg, the table bar of dial gauge is the level of state and the gauge outfit of showing bar is pointed to the workpiece reference column, and described workpiece reference column upper end is provided with vertical register pin.During check, the axle that is processed with pin-and-hole cooperated by the register pin on pin-and-hole and the workpiece reference column be positioned on the workpiece reference column, the axis of dial gauge table bar and the axis of axle are positioned on the same surface level, the gauge outfit of dial gauge table bar contacts with the surface of axle, on the horizontal direction axle is turned an angle, read first minimum value of dial gauge; And then horizontal direction is rotated 180 ° or axle taken off rotate 180 ° and be enclosed within on the register pin of workpiece reference column by pin-and-hole again with axle, the another side of axle is contacted with the gauge outfit of dial gauge table bar, again detected axle is turned an angle back and forth, read second minimum value of dial gauge this moment, first minimum value and second minimum value are compared, if both equate or difference again in the error allowed band, the symmetry that then shows a last pin-and-hole meets the requirements, otherwise shows that then the error of symmetry of a last pin-and-hole is undesirable.It is very convenient to adopt the utility model to be used for detecting the symmetry of a last pin-and-hole, can improve a last pin-and-hole symmetry situation efficiency of test.
As preferably, described workpiece reference column lower end is provided with threaded hole, and correspondingly described base plate is provided with counterbore, and screw penetrates from the lower end of counterbore to cooperate with the threaded hole of workpiece reference column lower end base plate and workpiece reference column are fixed together; Or described workpiece reference column lower end is provided with double-screw bolt, and correspondingly described base plate is provided with screw, and the workpiece reference column cooperates with screw on the base plate by the double-screw bolt of its lower end is fixed together workpiece reference column and base plate.Wherein, dismounting easily between workpiece reference column and the base plate, thus can be convenient to replace with workpiece reference column with various outer diameter register pin, to satisfy the check of pin-and-hole symmetry, improved versatility of the present utility model with different apertures.
As preferably, described dial gauge reference column upper end forms the U-shaped portion that comprises left arm and right arm, inboard relative two places of the inboard of described left arm and right arm form arc groove respectively, left arm and right arm are positioned at the arc groove top and are respectively equipped with coaxial isometrical left-hand thread hole and right-hand thread hole, the mounting rod of dial gauge is positioned at U-shaped portion and cooperates with the arc groove of left arm and right arm inboard, and screw cooperates so that the mounting rod that left arm and right arm draw in dial gauge is fixedly clamped in U-shaped portion with the left-hand thread hole and the right-hand thread hole of left arm and right arm respectively.Wherein, form arc groove respectively at inboard relative two places of the inboard of the left arm of U-shaped portion and right arm and can be convenient to cooperate, dial gauge is fixed with the dial gauge mounting rod; In addition, adopt the left-hand thread hole of screw and left arm and right arm and right-hand thread hole to cooperate the mounting rod clamping that left arm and right arm can be drawn in dial gauge, the while also is convenient to the dismounting of dial gauge.
As preferably, be formed with ring-shaped step between described register pin root and the workpiece reference column body, plane, described ring-shaped step place is and is horizontally disposed with.Wherein, form horizontally disposed ring-shaped step at the register pin root and can play effect, rotate in the horizontal direction, so that operation, and guarantee the accuracy of pin-and-hole symmetry check to guarantee axle to the horizontal support of axle to be measured.
As preferably, described base plate is provided with some workpiece reference columns, and the register pin external diameter of described some workpiece reference columns upper end is all unequal.Wherein, some workpiece reference columns are set on the floor, and the check of the unequal pin-and-hole symmetry that satisfies to have different apertures of register pin external diameter of every workpiece reference column upper end, to improve versatility of the present utility model.
As preferably, the height of described some workpiece reference columns is all unequal, the adjustable height of described dial gauge reference column.Wherein, the height of workpiece reference column is designed to unequal, can avoids when carrying out the check of pin-and-hole degree of piling, other idle workpiece locating shaft improves convenience and operability that the utility model uses to the interference of axle to be measured; And wherein, the adjustable height of dial gauge reference column then can be adjusted the height of dial gauge table bar, the different needs of height of living in when locating axle to be measured to adapt to the different workpieces reference column.
As preferably, described dial gauge reference column lower end forms double-screw bolt, and described base plate is provided with the through hole that can pass for the double-screw bolt of dial gauge reference column lower end, and is combined with nut at the double-screw bolt of dial gauge reference column lower end respectively corresponding to the through hole two ends of base plate.When need regulating the height of dial gauge reference column, unclamp the nut at through hole two ends, dial gauge is adjusted to suitable height after, again can be with relative fixed between dial gauge reference column and the base plate with the nut screwing clamping at through hole two ends.
As preferably, described dial gauge reference column comprises and the fixing lower semisection of base plate and the fixing upper semisection of dial gauge, described lower semisection upper end forms jack, described upper semisection lower end forms the inserted link that can slide up and down in the jack of lower semisection, described Socket walls is provided with the lock-screw that inserted link and jack can be located mutually.When needing to regulate the height of dial gauge reference column, as long as unclamp lock-screw, adjust the relative position of upper semisection and lower semisection again, then lock-screw being tightened can be with the locking of the relative position of upper semisection and lower semisection, thereby has realized the adjustment of dial gauge reference column height.
Described dial gauge reference column lower end forms double-screw bolt, is formed with the screw that cooperates with the double-screw bolt of dial gauge reference column lower end on the described base plate.By rotating the dial gauge reference column, the cooperate degree of adjusting the screw on dial gauge reference column lower end double-screw bolt and the base plate can be adjusted the height of dial gauge reference column easily.
Therefore, the utlity model has simple in structurely, can detect characteristics such as highly versatile easily to pin-and-hole.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is the plan structure synoptic diagram of Fig. 1;
Fig. 3 is an another kind of structural representation of the present utility model.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1: as depicted in figs. 1 and 2, base plate 1 is provided with dial gauge reference column 2 and a workpiece reference column 3, dial gauge reference column 2 and workpiece reference column 3 all vertically are provided with and are all fixing by their lower end and base plate 1, dial gauge reference column 2 lower ends are provided with threaded hole, correspondingly base plate is provided with counterbore, and screw penetrates from the counterbore lower end to cooperate with the threaded hole of dial gauge reference column lower end dial gauge reference column 2 and base plate are fixed together.Dial gauge 4 is installed on the dial gauge fixed leg 2, dial gauge reference column 2 upper ends form the U-shaped portion 13 that comprises left arm 11 and right arm 12, inboard relative two places of the inboard of left arm 11 and right arm 12 form arc groove respectively, left arm 11 and right arm 12 are positioned at the arc groove top and are respectively equipped with coaxial isometrical left-hand thread hole and right-hand thread hole, the mounting rod 14 of dial gauge 4 is positioned at U-shaped portion 13 and cooperates with the arc groove of left arm and right arm inboard, and screw 15 cooperates so that the mounting rod 14 that left arm and right arm draw in dial gauge 4 is fixedly clamped in U-shaped portion with the left-hand thread hole and the right-hand thread hole of left arm and right arm respectively.The table bar 5 of dial gauge 4 is the level of state and the gauge outfit 6 of showing bar 5 is pointed to workpiece reference columns 3.
During check, as shown in Figure 2, the axle 17 that is processed with pin-and-hole cooperated with the register pin 7 of workpiece reference column 3 upper ends by pin-and-hole be positioned on the workpiece reference column 3, the axis of dial gauge table bar 5 and the axis of axle 17 are positioned on the same surface level, the gauge outfit 6 of dial gauge table bar 5 contacts with the surface of axle 17, as shown by arrow A, on the horizontal direction axle 17 is turned an angle, read first minimum value of dial gauge 4; And then horizontal direction is rotated 180 ° or axle 17 taken off rotate 180 ° and be enclosed within on the register pin 7 of workpiece reference column 3 by pin-and-hole again with axle 17, the another side of axle 17 is contacted with the gauge outfit 6 of dial gauge table bar 5, again detected axle is turned an angle back and forth, read second minimum value of dial gauge 4 this moment, first minimum value and second minimum value are compared, if both equate or difference again in the error allowed band, the symmetry that then shows a last pin-and-hole meets the requirements, otherwise shows that then the error of symmetry of a last pin-and-hole is undesirable.
Embodiment 2: the difference of present embodiment and embodiment 1 is: as shown in Figure 3, base plate 1 is provided with three highly all unequal workpiece reference columns 31,32,33, and register pin 311,321,331 external diameters of workpiece reference column 31,32,33 upper ends are all unequal.The adjustable height of dial gauge reference column 2, the dial gauge reference column comprises and the fixing lower semisection of base plate and the fixing upper semisection of dial gauge, described lower semisection upper end forms jack, described upper semisection lower end forms the inserted link that can slide up and down in the jack of lower semisection, described Socket walls is provided with the lock-screw that inserted link and jack can be located mutually.All the other structures are with embodiment 1.
During check, detect the aperture difference of pin-and-hole according to band, select a workpiece reference column wherein matching with it, the height of adjusting the dial gauge reference column again be the mark post axis of dial gauge and pin bore axis to be measured axis at grade, all the other are operated with embodiment 1.
Claims (10)
1, a kind of pin-and-hole symmetry verifying attachment, comprise base plate, it is characterized in that described base plate is provided with dial gauge reference column and at least one workpiece reference column, dial gauge reference column and workpiece reference column all vertically are provided with and all fix by their lower end and base plate, dial gauge is installed on the dial gauge fixed leg, the table bar of dial gauge is the level of state and the gauge outfit of showing bar is pointed to the workpiece reference column, and described workpiece reference column upper end is provided with vertical register pin.
2, pin-and-hole symmetry verifying attachment according to claim 1, it is characterized in that described workpiece reference column lower end is provided with threaded hole, correspondingly described base plate is provided with counterbore, and screw penetrates from the lower end of counterbore to cooperate with the threaded hole of workpiece reference column lower end base plate and workpiece reference column are fixed together.
3, pin-and-hole symmetry verifying attachment according to claim 1, it is characterized in that described workpiece reference column lower end is provided with double-screw bolt, correspondingly described base plate is provided with screw, and the workpiece reference column cooperates with screw on the base plate by the double-screw bolt of its lower end is fixed together workpiece reference column and base plate.
4, according to claim 1 or 2 or 3 described pin-and-hole symmetry verifying attachments, it is characterized in that described dial gauge reference column upper end forms the U-shaped portion that comprises left arm and right arm, inboard relative two places of the inboard of described left arm and right arm form arc groove respectively, left arm and right arm are positioned at the arc groove top and are respectively equipped with coaxial isometrical left-hand thread hole and right-hand thread hole, the mounting rod of dial gauge is positioned at U-shaped portion and cooperates with the arc groove of left arm and right arm inboard, and screw cooperates so that the mounting rod that left arm and right arm draw in dial gauge is fixedly clamped in U-shaped portion with the left-hand thread hole and the right-hand thread hole of left arm and right arm respectively.
5, according to claim 1 or 2 or 3 described pin-and-hole symmetry verifying attachments, it is characterized in that being formed with ring-shaped step between described register pin root and the workpiece reference column body, plane, described ring-shaped step place is and is horizontally disposed with.
6, according to claim 1 or 2 or 3 described pin-and-hole symmetry verifying attachments, it is characterized in that described base plate is provided with some workpiece reference columns, the register pin external diameter of described some workpiece reference columns upper end is all unequal.
7, pin-and-hole symmetry verifying attachment according to claim 6 is characterized in that the height of described some workpiece reference columns is all unequal, the adjustable height of described dial gauge reference column.
8, pin-and-hole symmetry verifying attachment according to claim 7, it is characterized in that described dial gauge reference column lower end forms double-screw bolt, described base plate is provided with the through hole that can pass for the double-screw bolt of dial gauge reference column lower end, and is combined with nut at the double-screw bolt of dial gauge reference column lower end respectively corresponding to the through hole two ends of base plate.
9, pin-and-hole symmetry verifying attachment according to claim 7, it is characterized in that described dial gauge reference column comprises and the fixing lower semisection of base plate and the fixing upper semisection of dial gauge, described lower semisection upper end forms jack, described upper semisection lower end forms the inserted link that can slide up and down in the jack of lower semisection, described Socket walls is provided with the lock-screw that inserted link and jack can be located mutually.
10, pin-and-hole symmetry verifying attachment according to claim 7 is characterized in that described dial gauge reference column lower end forms double-screw bolt, is formed with the screw that cooperates with the double-screw bolt of dial gauge reference column lower end on the described base plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201209781U CN201251416Y (en) | 2008-07-14 | 2008-07-14 | Pin hole symmetry checking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201209781U CN201251416Y (en) | 2008-07-14 | 2008-07-14 | Pin hole symmetry checking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201251416Y true CN201251416Y (en) | 2009-06-03 |
Family
ID=40747088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201209781U Expired - Fee Related CN201251416Y (en) | 2008-07-14 | 2008-07-14 | Pin hole symmetry checking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201251416Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102419141A (en) * | 2011-08-18 | 2012-04-18 | 大连大显精密轴有限公司 | Multifunctional clamping fixture used for measuring axle workpieces |
| CN102589398A (en) * | 2012-02-24 | 2012-07-18 | 桂林福达曲轴有限公司 | Inspection device for measuring symmetry of crank journal pin hole to journal centre line and inspection method thereof |
| CN103697800A (en) * | 2013-12-30 | 2014-04-02 | 海宁市新艺机电有限公司 | Bottom surface planeness detection device of ring-hole workpiece |
| CN112113492A (en) * | 2019-06-19 | 2020-12-22 | 郑州航天电子技术有限公司 | Jack symmetry detection device |
-
2008
- 2008-07-14 CN CNU2008201209781U patent/CN201251416Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102419141A (en) * | 2011-08-18 | 2012-04-18 | 大连大显精密轴有限公司 | Multifunctional clamping fixture used for measuring axle workpieces |
| CN102589398A (en) * | 2012-02-24 | 2012-07-18 | 桂林福达曲轴有限公司 | Inspection device for measuring symmetry of crank journal pin hole to journal centre line and inspection method thereof |
| CN103697800A (en) * | 2013-12-30 | 2014-04-02 | 海宁市新艺机电有限公司 | Bottom surface planeness detection device of ring-hole workpiece |
| CN112113492A (en) * | 2019-06-19 | 2020-12-22 | 郑州航天电子技术有限公司 | Jack symmetry detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090603 Termination date: 20110714 |