CN102749014A - Tolerance inspection caliper rule - Google Patents
Tolerance inspection caliper rule Download PDFInfo
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- CN102749014A CN102749014A CN2012102258470A CN201210225847A CN102749014A CN 102749014 A CN102749014 A CN 102749014A CN 2012102258470 A CN2012102258470 A CN 2012102258470A CN 201210225847 A CN201210225847 A CN 201210225847A CN 102749014 A CN102749014 A CN 102749014A
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- vernier
- ruler
- tolerance
- sliding seat
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Abstract
The invention relates to a tolerance inspection caliper rule which comprises a straight rule. The straight rule is provided with a fixed end, a sliding seat and a fixed sleeve, wherein the fixed end is a straight rule rod body marked with primary scales and vernier scales on the two sides; the sliding seat is sleeved at the fixed end of the primary scales, similar or equal to the slideable structure with a dial of a standard caliper rule; the fixed sleeve is sleeved at the fixed end of the vernier scales; the fixed sleeve is provided with a size positioning block; one end of the size positioning block is overlapped with the zero scale on the straight rule; two vernier blocks capable of sliding along the length direction of the straight rule and marked with vernier scales are arranged on the inner wall of the fixed sleeve; the two vernier blocks are symmetrical with each other and partially extend out of the fixed sleeve, and racks are arranged on the opposite sides respectively; the straight rule is provided with a regulator for driving the racks to symmetrically move toward opposite directions; and the end surface of the sliding seat and the end surfaces of the two vernier blocks form a flat detection jaw. The tolerance inspection caliper rule provided by the invention realizes simple and convenient tolerance inspection and has high detection efficiency.
Description
Technical field
The present invention relates to a kind of dimensional measurement and the instruments of inspection, relate in particular to a kind of tolerance check slide calliper rule.
Background technology
Tolerance is the permission variation of an actual parameter value.Make for production and processing, formulating the conditional permission product of tolerance physical size can change within certain scope, so that the requirement that reaches shared, exchanges or work in coordination.Product is in manufacture process; Inevitably mismachining tolerance can occur, the actual manufacturing dimension of property product or parts can't reach a certain designated value accurately in batches, requires the physical size of product to have enough precision usually; That is the deviation control of the physical size of product and theoretical size within the specific limits; In described allowed band, it is qualified that product promptly is judged to be, and this allowed band is tolerance; Like size A
; Last tolerance is+0.2, and following tolerance is-0.1, in the production run of workpiece; Require the physical size of product to be not more than theoretical size and last tolerance sum, and be not less than theoretical size and following tolerance sum.
The existing method of kind of calliper that adopts usually detects; Existing slide calliper rule comprise various vernier calipers; Milscale and spiral dial gauge etc. when whether the physical size of testing product or parts meets tolerance, generally adopt two identical chi tools; One detection jaw wherein is adjusted to the pairing size of tolerance, and fixes; Another detection jaw is adjusted to down the pairing size of tolerance, and fixes.During detection, if workpiece can snap in the pairing detection jaw of tolerance, can not snap in down the pairing detection jaw of tolerance simultaneously, then judge to meet tolerance, workpiece is qualified.This metering system needs two chi tools, and need adjust tolerance dimension respectively, and does by turns and measure, and has shortcomings such as size adjustment trouble, measuring process are loaded down with trivial details, inefficiency, is unfavorable for the fast detecting of workpiece; Also having a kind of way is to make special-purpose tolerance to detect tool, and an end is last tolerance dimension, and an end is following tolerance dimension; This tool has the advantage that detection is convenient, efficient is very high, but shortcoming is also very obvious, promptly can only measure a certain tolerance of single size; Do not have a bit versatility to say, and cost of manufacture is high, a product often has a lot of sizes to need management and control; All use a lot of special fixtures, then detecting cost can be very high, directly influences the vitality of product.
Summary of the invention
The present invention has overcome the deficiency of prior art, provides a kind of tolerance simple in structure, that efficient is high to check slide calliper rule.
For achieving the above object; The technical scheme that the present invention adopts is: a kind of tolerance check slide calliper rule; Comprise ruler, said ruler is provided with stiff end, sliding seat and fixed cover, and said stiff end is the said ruler body of rod that master calibration and vernier graduation are carved with in both sides; Said sliding base sleeve is being carved with the stiff end of said master calibration; Similar or be equal to slidably structure of standard vernier caliper band dial plate, said fixed cover is enclosed within the stiff end that is carved with said vernier graduation, and said fixed cover is provided with the sizing piece; One end of said sizing piece overlaps with zero graduation on the said ruler; Said fixed cover inwall is provided with and can slides and be carved with two vernier pieces of vernier graduation along the ruler length direction, and said two vernier pieces symmetrically, part extends said fixed cover, and said two vernier piece opposite sides are respectively arranged with tooth bar; Said ruler is provided with and drives the regulator of said tooth bar toward the reverse direction symmetric motion, and the end face of the end face of said sliding seat and said two vernier pieces constitutes smooth detection jaw.
In preferred embodiment of the present invention; A kind of tolerance check slide calliper rule comprise that further the xsect of said two vernier pieces is L-shaped; One side of said L shaped vernier piece is the test side; Opposite side is the tolerance adjustable side, fits in the side that said two vernier pieces are relative and the side of said ruler, and the upper surface of said two vernier pieces is concordant with the upper surface of said ruler.
In preferred embodiment of the present invention, a kind of tolerance check slide calliper rule comprise that further said master calibration is minimum scale with 1mm, and said vernier graduation is minimum scale with 0.9mm.
In preferred embodiment of the present invention; A kind of tolerance check slide calliper rule comprise that further said regulator comprises knob and the pull bar that is fixed on the knob bottom; Said pull bar passes said ruler and is fixed with the gear that can be meshed with said tooth bar in the pull bar lower end; The ball that be provided with spring in the said pull bar, is connected with spring laterally has the arc groove that supplies said ball to spring in the said ruler.
In preferred embodiment of the present invention, a kind of tolerance check slide calliper rule further comprise between said sliding seat and the said ruler, be equipped with lock screw between said two vernier pieces and the said ruler.
In preferred embodiment of the present invention, a kind of tolerance check slide calliper rule comprise that further said sliding seat is symmetrical along said ruler center.
The invention solves the defective that exists in the background technology, the present invention is simple in structure, convenient and practical, not only can be used as survey instrument; Can also be as the instruments of inspection of various workpiece; When the examining workpieces size, adjustment criteria size and desired tolerance are more convenient, and it is direct, easy to measure gimmick; In the scope of overall length dimension restriction, can detect any tolerance of arbitrary dimension; General fully, check and measurement are accurate, efficient is high, have significantly reduced the instrument purchase cost and the use cost of check and field of measurement.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is the structural representation of the preferred embodiments of the present invention;
Fig. 2 is the regulator syndeton synoptic diagram of the preferred embodiments of the present invention;
Fig. 3 is gear of the preferred embodiments of the present invention and the motion state diagram after the engagement of two tooth bars;
Among the figure: 1, ruler, 2, sliding seat, 3, fixed cover, 4, the sizing piece, 5, the vernier piece, 6, the vernier piece; 7, detect jaw, 8, detect jaw, 9, tooth bar, 10, tooth bar, 11, regulator, 12, knob; 13, pull bar, 14, gear, 15, spring, 16, ball, 17, arc groove; 18, lock screw, 19, lock screw, 20, lock screw, 21, stiff end, 22, stiff end.
Embodiment
Combine accompanying drawing and embodiment that the present invention is done further detailed explanation now, these accompanying drawings are the synoptic diagram of simplification, basic structure of the present invention only is described in a schematic way, so it only show the formation relevant with the present invention.
As shown in Figure 1; A kind of tolerance straightedge comprises ruler 1, and said ruler 1 is provided with stiff end 21,22 and sliding seat 2 and fixed cover 3; Said stiff end 21 is carved with said ruler 1 body of rod of master calibration A for both sides; Said stiff end 22 is carved with said ruler 1 body of rod of vernier graduation B for both sides, said sliding seat 2 be enclosed within both sides be carved with master calibration A said stiff end 21 ruler 1 body of rod on, similar or be equal to slidably structure of standard vernier caliper band dial plate; Said sliding seat 2 is symmetry along said ruler 1 center; Can said sliding seat 2 be arranged to isosceles trapezoid, said fixed cover 3 is enclosed within both sides and is carved with on ruler 1 body of rod of said stiff end 22 of vernier graduation B, and said fixed cover 3 is provided with sizing piece 4; One end of said sizing piece 4 aligns with zero graduation on the said ruler 1; Said fixed cover 3 inwalls are provided with and can slide and be carved with two vernier pieces 5,6 of vernier graduation C along ruler 1 length direction, and said two vernier pieces 5,6 symmetrically, part extends said fixed cover 3, and said two vernier pieces, 5,6 opposite sides are respectively arranged with tooth bar 9; Said ruler 1 is provided with and drives the regulator 11 of said tooth bar 9,10 toward the reverse direction symmetric motion, and the end face of the end face of said sliding seat 2 and said two vernier pieces 5,6 constitutes smooth detection jaw 7,8.
The xsect of preferred said two the vernier pieces 5,6 of the present invention is L-shaped; One side of said L shaped vernier piece 5,6 is the test side; Opposite side is the tolerance adjustable side; Fit in the side that said two vernier pieces 5,6 are relative and the side of said ruler 1, the upper surface of said two vernier pieces 5,6 is concordant with the upper surface of said ruler 1, and the vernier graduation C on the vernier piece 5,6 is alignd with vernier graduation B on the ruler 1.
Said master calibration A is minimum scale with 1mm, and said vernier graduation B, C are minimum scale with 0.9mm.In order to be widely used in the desired tolerance of different workpieces, can also the vernier graduation C on vernier graduation B on the ruler 1 and the vernier piece 5,6 be arranged to 20 fens degree, 50 fens specifications such as degree, this specification is consistent with the vernier graduation definition of vernier caliper.
Like Fig. 2, shown in Figure 3; For the ease of the check symmetric deviations; Improve checkability, the preferred said regulator 11 of the present invention comprises knob 12 and the pull bar 13 that is fixed on knob 12 bottoms, and said pull bar 13 passes said ruler 1 and is fixed with the gear 14 that can be meshed with said tooth bar 9,10 in pull bar 13 lower ends; Be provided with the ball 16 of spring 15, connection spring 15 in the said pull bar 13, laterally have the arc groove 17 that supplies said ball 16 to spring in the said ruler 1.Ball 16 is fitted with ruler 1 medial surface, when up lifting knob 12, when ball 16 moves to arc groove 17 positions; Spring 15 springs in the arc groove 17 ball 16 through elastic force, and knob 12 blocks with pull bar 13, and this moment, gear 14 moved to the correspondence position of tooth bar 9,10; With tooth bar the 9, the 10th, be connected with a joggle, turn knob 12 drives tooth bar 9,10 toward opposite-oriented movement through gear 14; And the distance of motion equates, this moment vernier piece 5,6 simultaneously round about equidistance move; When pushing knob 12, when ball 16 shifted out arc groove 17, gear 14 separated with tooth bar 9,10, and this moment, vernier piece 5,6 was independent separately mobile.
Be provided with lock screw 18 between said sliding seat 2 and the said ruler 1, be respectively equipped with lock screw 19,20 between said two vernier pieces 5,6 and the said ruler 1.
Principle of work of the present invention is following:
When the tolerance of examining workpieces, basic size is A1, and the upper deviation is+B1; Lower deviation is-B2, at first pushes knob 12, makes ball 16 shift out arc groove 17; This moment, vernier piece 5,6 was independent separately mobile, and next regulates sliding seat 2 to A1 scales, through lock screw 18 sliding seat 2 is fixed on the ruler 1; Again the bearing of trend of vernier piece 5 from " 0 " scale toward vernier graduation B moved to B1, the bearing of trend of vernier piece 6 from " 0 " scale toward master calibration A moved to B2, through lock screw 19,20 two vernier pieces 5,6 are fixed on the ruler 1 again; At last workpiece is inserted from detection jaw 7 between sliding seat 2 and the vernier piece 5 and the detection jaw 8 between sliding seat 2 and the vernier piece 6 continuously,, but can not insert the detection jaw 8 between sliding seat 2 and the vernier piece 6 if can insert the detection jaw 7 between sliding seat 2 and the vernier piece 5; The size that this workpiece then is described is less than the upper deviation but greater than lower deviation; Tolerance meets dimensional requirement in institute's claimed range, workpiece is qualified; If can not insert the detection jaw 7 between sliding seat 2 and the vernier piece 5, explain that then the size of this workpiece surpasses the upper deviation, this workpiece is defective; If can insert the detection jaw 8 between sliding seat 2 and the vernier piece 6, the size that this workpiece then is described does not meet dimensional requirement less than lower deviation, and this workpiece is defective.
When the tolerance of examining workpieces, basic size is A1, and the upper deviation is+B1; Lower deviation is-B1, at first up lifts knob 12, makes ball 16 move to arc groove 17 positions; This moment vernier piece 5,6 simultaneously round about equidistance move, next regulates sliding seat 2 to A1 scales, through lock screw 18 sliding seat 2 is fixed on the ruler 1; Again vernier piece 5,6 is moved to " 0 " scale position, drive the bearing of trend of vernier piece 5 from " 0 " scale toward vernier graduation B and move to B1, vernier piece 6 also moves to B1 from the bearing of trend of the past master calibration A of " 0 " scale simultaneously; Through lock screw 19,20 vernier piece 5,6 is fixed on the ruler 1 again; At last workpiece is inserted from detection jaw 7 between sliding seat 2 and the vernier piece 5 and the detection jaw 8 between sliding seat 2 and the vernier piece 6 continuously,, but can not insert the detection jaw 8 between sliding seat 2 and the vernier piece 6 if can insert the detection jaw 7 between sliding seat 2 and the vernier piece 5; The size that this workpiece then is described is less than the upper deviation but greater than lower deviation; Tolerance meets dimensional requirement in institute's claimed range, this workpiece is qualified; If can not insert the detection jaw 7 between sliding seat 2 and the vernier piece 5, explain that then the size of workpiece surpasses the upper deviation, this workpiece is defective; If can insert the detection jaw 8 between sliding seat 2 and the vernier piece 6, the size that this workpiece then is described does not meet dimensional requirement less than lower deviation, and this workpiece is defective.
When the tolerance of examining workpieces, detect jaw 7 and also can be used as the check of lower deviation and detect the check of jaw 8 as the upper deviation, the moving direction of vernier piece 5,6 is just in time opposite with said method during check.
Above foundation desirable embodiment of the present invention is enlightenment, and through above-mentioned description, the related personnel can carry out various change and modification fully in the scope that does not depart from this invention technological thought.The technical scope of this invention is not limited to the content on the instructions, must confirm technical scope according to the claim scope.
Claims (6)
1. a tolerance is checked slide calliper rule; Comprise ruler, it is characterized in that: said ruler is provided with stiff end, sliding seat and fixed cover, and said stiff end is the said ruler body of rod that master calibration and vernier graduation are carved with in both sides; Said sliding base sleeve is being carved with the stiff end of said master calibration; Similar or be equal to slidably structure of standard vernier caliper band dial plate, said fixed cover is enclosed within the stiff end that is carved with said vernier graduation, and said fixed cover is provided with the sizing piece; One end of said sizing piece overlaps with zero graduation on the said ruler; Said fixed cover inwall is provided with and can slides and be carved with two vernier pieces of vernier graduation along the ruler length direction, and said two vernier pieces symmetrically, part extends said fixed cover, and said two vernier piece opposite sides are respectively arranged with tooth bar; Said ruler is provided with and drives the regulator of said tooth bar toward the reverse direction symmetric motion, and the end face of the end face of said sliding seat and said two vernier pieces constitutes smooth detection jaw.
2. a kind of tolerance check slide calliper rule according to claim 1; It is characterized in that: the xsect of said two vernier pieces is L-shaped; One side of said L shaped vernier piece is the test side; Opposite side is the tolerance adjustable side, fits in the side that said two vernier pieces are relative and the side of said ruler, and the upper surface of said two vernier pieces is concordant with the upper surface of said ruler.
3. a kind of tolerance check slide calliper rule according to claim 1, it is characterized in that: said master calibration is minimum scale with 1mm, and said vernier graduation is minimum scale with 0.9mm.
4. a kind of tolerance check slide calliper rule according to claim 1; It is characterized in that: said regulator comprises knob and the pull bar that is fixed on the knob bottom; Said pull bar passes said ruler and is fixed with the gear that can be meshed with said tooth bar in the pull bar lower end; The ball that be provided with spring in the said pull bar, is connected with spring laterally has the arc groove that supplies said ball to spring in the said ruler.
5. a kind of tolerance check slide calliper rule according to claim 1 is characterized in that: between said sliding seat and the said ruler, be equipped with lock screw between said two vernier pieces and the said ruler.
6. a kind of tolerance check slide calliper rule according to claim 1, it is characterized in that: said sliding seat is symmetry along said ruler center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210225847.0A CN102749014B (en) | 2012-07-03 | 2012-07-03 | Tolerance inspection caliper rule |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210225847.0A CN102749014B (en) | 2012-07-03 | 2012-07-03 | Tolerance inspection caliper rule |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102749014A true CN102749014A (en) | 2012-10-24 |
| CN102749014B CN102749014B (en) | 2014-07-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210225847.0A Active CN102749014B (en) | 2012-07-03 | 2012-07-03 | Tolerance inspection caliper rule |
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| Country | Link |
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| CN (1) | CN102749014B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034297A (en) * | 2014-06-26 | 2014-09-10 | 孙硕添 | Device for automatically measuring diameter of tree |
| CN104374254A (en) * | 2014-11-18 | 2015-02-25 | 山东蓬翔汽车有限公司 | Special detection tool for axle housing counteraction rod supporting frame |
| CN106882918A (en) * | 2017-04-08 | 2017-06-23 | 贵州大学 | Micro-nano nozzle forging instrument apparatus and forging method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58186001A (en) * | 1982-04-24 | 1983-10-29 | Ryohei Tanmachi | Divided measuring instrument |
| CN85205763U (en) * | 1985-12-30 | 1986-11-19 | 丁福明 | Square calliper which is able to be used as gauge |
| CN1244652A (en) * | 1998-08-12 | 2000-02-16 | 陈其良 | Caliper with locking button |
| JP2006258597A (en) * | 2005-03-17 | 2006-09-28 | Jfe Steel Kk | Caliper |
| CN202692892U (en) * | 2012-07-03 | 2013-01-23 | 苏州路之遥科技股份有限公司 | Tolerance inspection caliper rule |
-
2012
- 2012-07-03 CN CN201210225847.0A patent/CN102749014B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58186001A (en) * | 1982-04-24 | 1983-10-29 | Ryohei Tanmachi | Divided measuring instrument |
| CN85205763U (en) * | 1985-12-30 | 1986-11-19 | 丁福明 | Square calliper which is able to be used as gauge |
| CN1244652A (en) * | 1998-08-12 | 2000-02-16 | 陈其良 | Caliper with locking button |
| JP2006258597A (en) * | 2005-03-17 | 2006-09-28 | Jfe Steel Kk | Caliper |
| CN202692892U (en) * | 2012-07-03 | 2013-01-23 | 苏州路之遥科技股份有限公司 | Tolerance inspection caliper rule |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104034297A (en) * | 2014-06-26 | 2014-09-10 | 孙硕添 | Device for automatically measuring diameter of tree |
| CN104374254A (en) * | 2014-11-18 | 2015-02-25 | 山东蓬翔汽车有限公司 | Special detection tool for axle housing counteraction rod supporting frame |
| CN106882918A (en) * | 2017-04-08 | 2017-06-23 | 贵州大学 | Micro-nano nozzle forging instrument apparatus and forging method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102749014B (en) | 2014-07-23 |
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