CN102243045A - Groove measuring center caliper - Google Patents
Groove measuring center caliper Download PDFInfo
- Publication number
- CN102243045A CN102243045A CN201110186854XA CN201110186854A CN102243045A CN 102243045 A CN102243045 A CN 102243045A CN 201110186854X A CN201110186854X A CN 201110186854XA CN 201110186854 A CN201110186854 A CN 201110186854A CN 102243045 A CN102243045 A CN 102243045A
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- China
- Prior art keywords
- claw
- slide block
- blade
- slider
- left end
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Abstract
The invention discloses a groove measuring center caliper. The caliper comprises a body and a slider which can slide on the body in the horizontal direction, wherein a clamping claw is fixed on the left end of the body; the lower end of the clamping claw is a circular arc face which is bilaterally symmetric; the left end of the slider is greater in width than the right end; the left end face of the slider is vertical to the body; the upper end and the lower end of the slider are arranged respectively above and below the clamping claw; a symmetric center line of the clamping claw is defined as a reference zero line; and as the slider moves on the body in the horizontal direction, the distance between the left end face of the slider and the symmetric center line of the clamping claw is displayed by a graduation or a value. The caliper provided by the invention has the advantages of simple structure, low cost of manufacture and good measuring accuracy, and is suitable for measuring the symmetric degree of the center groove of the inner race of a circular ring in batch.
Description
Technical field
The present invention relates to a kind of survey instrument, concretely, relate to a kind of slide calliper rule that can measure annulus inner ring central channel.
Background technology
Figure 6 shows that the tooth cover in the automobile synchronizer, have one of them central channel that only drawn among three circumferentially uniform central channel 5a(figure on the inner ring of tooth cover 5), central channel 5a is positioned at the inner ring center of tooth cover 5, and with respect to the left and right sides end face symmetry of tooth cover 5, its symmetry requires up to 0.1mm.This Geometrical Tolerance Principle is very high, can influence the gearshift performance of variator and cause neutral gear position incorrect if this form and position tolerance is overproof, plays a part very crucial in automotive transmission.Factory generally adopts contourgraph to control this form and position tolerance, but the costing an arm and a leg of contourgraph, and price is generally about hundreds of thousands, and the frequency that detects is low, is not suitable for the batch detection to product.
Summary of the invention
Technical matters to be solved by this invention provide a kind of simple in structure, cost is low, precision is accurate, is suitable for the slide calliper rule of batch detection annulus inner ring central channel symmetry.
For this reason, a kind of survey groove center slide calliper rule provided by the invention, the slide block (2) that comprises blade (1) and horizontally slip on blade (1) constitutes, key is: the left end of described blade (1) is provided with claw (3), the lower end of described claw (3) is symmetrical arc surface (3a), perpendicular to described blade (1), the lower end that the upper end of slide block (2) is positioned at the upside of described claw (3), slide block (2) is positioned at the downside of described claw (3) to the left end width of described slide block (2) greater than the left side of right-hand member width and slide block (2); The symmetrical center line (3b) of described claw (3) is the benchmark zero line, and when slide block (2) horizontally slipped on blade (1), described slide block (2) left side showed by scale or numerical value to the distance of described claw (3) symmetrical center line (3b).
Described claw is fixed on the left end of described blade by bolt or rivet, measures with the symmetry of the annulus inner ring central channel that adapts to different size.
Described slide block is provided with trip bolt, slide block can be fixed on the blade, after measuring well, slide block can be fastened on the blade, makes things convenient for reading.
As preferably, the bottom of the arc surface of described claw is cut into the arc surface of band tack by surface level, the central channel of annulus inner ring can be surface groove or arc groove, the arc surface bottom of claw is cut into tack, be convenient to arc surface and enter in the central channel smoothly and measure, have the gap between the bottom of claw lower end and central channel.
During measurement, claw stretches in the central channel of annulus inner ring, the arc surface of claw contacts respectively with the left and right sides of the central channel of annulus inner ring, central channel can be surface groove or arc groove, the arc surface of claw and the groove face of annulus are tangent, the left side of slide block is close on the end face of annulus, reads the data of measuring gained from the annulus left and right sides respectively, and two data are subtracted each other the symmetry that is annulus inner ring central channel.When the left side of slide block was close on the end face of annulus, therefore the left and right sides of the central channel of the arc surface of claw and annulus inner ring position contacting respectively can be guaranteed that the data that record have very high degree of accuracy by unique qualification.
Beneficial effect of the present invention: simple in structure, manufacturing cost only needs hundreds of unit, with respect to the contourgraph material benefit more economically of hundreds of thousands; Easy to operate, detect frequency height, be applicable to the symmetry of batch detection annulus inner ring central channel; And precision is accurate, is fit to very much the fast detecting of midget plant's processing site, has vast market prospect.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is that the A of Fig. 1 is to view (only comprising claw and blade).
Fig. 3 be among the present invention claw from the constitutional diagram of an end measuring center groove of automobile synchronizer tooth cover.
Fig. 4 be among the present invention claw from the constitutional diagram of the other end measuring center groove of automobile synchronizer tooth cover.
Fig. 5 is the B portion enlarged drawing of Fig. 4.
Fig. 6 is the structural representation of the tooth cover in the automobile synchronizer.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the present invention is described in further detail:
Survey groove center slide calliper rule as shown in Figure 1 are made up of blade 1, slide block 2, claw 3, trip bolt 4.Blade 1 is strip, and slide block 2 can horizontally slip on blade 1, and blade is similar to the version of vernier in the version of blade and slide block and the vernier caliper commonly used.The left end of blade 1 is provided with claw 3, and the lower end of claw 3 is symmetrical arc surface 3a, and arc surface 3a is the measurement face of slide calliper rule.
The left end width of slide block 2 is greater than the rear end width, and the left side of slide block 2 is perpendicular to blade 1.Claw 3 is positioned at the left side of slide block 2, when slide block 2 slides into extreme position left, fits together with the right side of claw 3.The upper end of slide block 2 is positioned at the upside of claw 3, the lower end of slide block 2 is positioned at the downside of claw 3.The arc surface 3a left-right symmetric of claw 3, its symmetrical center line 3b is the benchmark zero line.Can be provided with scale on the slide calliper rule reading measurement data, or the direct video data of digital display area 2a by being provided with.When slide block 2 horizontally slipped on blade 1, slide block 2 left sides showed by scale or numerical value to the distance of claw 3 symmetrical center line 3b.Slide block 2 is provided with trip bolt 4, slide block 2 can be fixed on the optional position on the blade 1.
In conjunction with Fig. 1, Fig. 2 as can be known, claw 3 and blade 1 adopts split-type structural, has three rivet hole 3c on claw 3 and the blade 1 accordingly, and claw 3 is fixed on the left end of blade 1 by rivet, also can adopt bolted mode.As shown in Figure 5, tack preferably is arranged in the bottom of the arc surface 3a of claw 3, promptly by the arc surface of the band tack of surface level cutting back formation.
As Fig. 3,4, during measurement, the right hand is arrested blade 1, thumb moving slider 2, left hand are taken tooth cover 5, and claw 3 is stretched among the central channel 5a that tooth overlaps 5 inner rings, the arc surface 3a of claw 3 contacts respectively with the inclined-plane, the left and right sides of central channel 5a, and the left side of slide block 2 is close on the end face of tooth cover 5.Read respectively from tooth and overlap the data that gained is measured in 5 left and right sides, two data are subtracted each other and are the symmetry that tooth overlaps 5 inner ring central channel 5a.As shown in Figure 5, the inclined-plane of the arc surface 3a of claw 3 and tooth cover 5 is tangent, and there is certain clearance the bottom of the anchor ring 3a of cutting claw 3 with lower end that guarantees catching 3 and the bottom that tooth overlaps 5 central channel 5a.
Slide calliper rule can measure not only as shown in Figure 5 that central channel is the symmetry on inclined-plane, can the measuring center groove be the symmetry of arc surface also.Change the claw of slide calliper rule, can measure the symmetry of various different size annulus spare endoporus central channels, further saved cost.
Claims (4)
1. survey the groove center slide calliper rule for one kind, the slide block (2) that comprises blade (1) and horizontally slip on blade (1) constitutes, it is characterized in that: the left end of described blade (1) is provided with claw (3), the lower end of described claw (3) is symmetrical arc surface (3a), perpendicular to described blade (1), the lower end that the upper end of slide block (2) is positioned at the upside of described claw (3), slide block (2) is positioned at the downside of described claw (3) to the left end width of described slide block (2) greater than the left side of right-hand member width and slide block (2); The symmetrical center line (3b) of described claw (3) is the benchmark zero line, and when slide block (2) horizontally slipped on blade (1), described slide block (2) left side showed by scale or numerical value to the distance of described claw (3) symmetrical center line (3b).
2. according to the described survey groove center of claim 1 slide calliper rule, it is characterized in that: described claw (3) is fixed on the left end of described blade (1) by bolt or rivet.
3. according to the described survey groove center of claim 1 slide calliper rule, it is characterized in that: described slide block (2) is provided with trip bolt (4), slide block (2) can be fixed on the blade (1).
4. according to the described survey groove center of claim 1 slide calliper rule, it is characterized in that: the bottom of the arc surface (3a) of described claw (3) is cut into the arc surface of band tack by surface level.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110186854XA CN102243045A (en) | 2011-07-06 | 2011-07-06 | Groove measuring center caliper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110186854XA CN102243045A (en) | 2011-07-06 | 2011-07-06 | Groove measuring center caliper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102243045A true CN102243045A (en) | 2011-11-16 |
Family
ID=44961220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110186854XA Pending CN102243045A (en) | 2011-07-06 | 2011-07-06 | Groove measuring center caliper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102243045A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH590450A5 (en) * | 1974-11-25 | 1977-08-15 | Sinoval Ets | Precision caliper rule with replacement guides - has replaceable pads in slider located in groove in measuring rod |
| CN201081652Y (en) * | 2007-09-28 | 2008-07-02 | 陈硕 | Groove dimension and position test meter |
| CN201540083U (en) * | 2009-10-28 | 2010-08-04 | 江西申工工具有限公司 | Depth calipers with double claws |
| CN201803653U (en) * | 2010-07-15 | 2011-04-20 | 贵州凯星液力传动机械有限公司 | High-precision measuring tool for measuring depth of annular groove of inner hole |
| CN202188811U (en) * | 2011-07-06 | 2012-04-11 | 重庆蓝黛动力传动机械股份有限公司 | Measuring groove center caliper |
-
2011
- 2011-07-06 CN CN201110186854XA patent/CN102243045A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH590450A5 (en) * | 1974-11-25 | 1977-08-15 | Sinoval Ets | Precision caliper rule with replacement guides - has replaceable pads in slider located in groove in measuring rod |
| CN201081652Y (en) * | 2007-09-28 | 2008-07-02 | 陈硕 | Groove dimension and position test meter |
| CN201540083U (en) * | 2009-10-28 | 2010-08-04 | 江西申工工具有限公司 | Depth calipers with double claws |
| CN201803653U (en) * | 2010-07-15 | 2011-04-20 | 贵州凯星液力传动机械有限公司 | High-precision measuring tool for measuring depth of annular groove of inner hole |
| CN202188811U (en) * | 2011-07-06 | 2012-04-11 | 重庆蓝黛动力传动机械股份有限公司 | Measuring groove center caliper |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111116 |