CN106643392B - Camshaft cam is to pinhole position degree and is examined utensil - Google Patents
Camshaft cam is to pinhole position degree and is examined utensil Download PDFInfo
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- CN106643392B CN106643392B CN201611217851.7A CN201611217851A CN106643392B CN 106643392 B CN106643392 B CN 106643392B CN 201611217851 A CN201611217851 A CN 201611217851A CN 106643392 B CN106643392 B CN 106643392B
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- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
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Abstract
The invention discloses a camshaft cam pair pin hole position degree checking fixture, which comprises a checking fixture body, positioning slide block parts and a measuring device, wherein the positioning slide block parts are distributed on the checking fixture body; the positioning slide block component comprises a slide block assembly, and the lower end of the slide block assembly can be in contact with a measured camshaft; the measuring device is distributed at the end part of the checking fixture body, the measuring device comprises a sliding sleeve bracket and a sliding measuring pin, the upper part of the sliding sleeve bracket is attached and fixed with the lower body surface of the checking fixture body, and the lower part of the sliding sleeve bracket is combined with a cylinder; the axis of the cylinder is provided with a through hole; the sliding measuring pin is matched with the through hole. The gauge has the advantages of compact structure, convenient, accurate, efficient and safe measurement process.
Description
Technical Field
The invention relates to the field of camshaft pin hole measurement, in particular to a camshaft cam pin hole position degree detection tool.
Background
The geometric characteristic item of a camshaft product of an internal combustion engine is detected, and all the items related to the position degree of a pin hole of a camshaft on the camshaft can be detected by special camshaft (crankshaft) measuring equipment generally. But can't be competent at large-scale camshaft, can receive equipment measuring range restriction to there is the problem in the safety when hoist and mount camshaft. The data detected by a common meter making method on the platform has larger errors, and a supplier can only measure the data before assembling. The existence of the contradiction is not beneficial to quality control, and a camshaft cam to pin hole position degree detection tool must be invented and designed again for detecting the camshaft cam to pin hole position degree items.
The above background disclosure is only for the purpose of assisting understanding of the inventive concept and technical solutions of the present invention, and does not necessarily belong to the prior art of the present patent application, and should not be used for evaluating the novelty and inventive step of the present application in the case that there is no clear evidence that the above content is disclosed at the filing date of the present patent application.
Disclosure of Invention
The invention aims to provide a camshaft cam pair pin hole position degree detection tool which is compact in structure, convenient, accurate, efficient and safe in measurement process.
Preferably, the invention can also have the following technical features:
a camshaft cam is to inspection device of pinhole position degree, including examining the concrete body, positioning slide block part, measuring apparatus, the said positioning slide block part is distributed on said examining the concrete body; the positioning slide block component comprises a slide block assembly, and the lower end of the slide block assembly can be in contact with a measured camshaft; the measuring device is distributed at the end part of the checking fixture body, the measuring device comprises a sliding sleeve bracket and a sliding measuring pin, the upper part of the sliding sleeve bracket is attached and fixed with the lower body surface of the checking fixture body, and the lower part of the sliding sleeve bracket is combined with a cylinder; the axis of the cylinder is provided with a through hole; the sliding measuring pin is matched with the through hole.
Furthermore, two V-shaped surfaces are fixed on the lower body surface of the detection tool body; the sliding block assembly comprises an inner sliding block, an outer sliding block and an insert block, wherein the insert block is arranged at the contact position of the inner sliding block and the outer sliding block and the camshaft to be tested.
Furthermore, the positioning slide block component also comprises a slide block sleeve cover plate, a positioning slide block sleeve, a base top plate, a dustproof cover, a flange cap and a dial indicator, wherein the upper end of the outer slide block is fixed on the base top plate, and the lower end of the outer slide block can be in contact with a measured camshaft; the positioning slide block sleeve is of a concave structure; the sliding block sleeve cover plate is fixed on the end surfaces of the two ends of the positioning sliding block sleeve, and a square hole is formed; the detection body is provided with a through hole at a position corresponding to the square hole; the positioning slide block sleeve is fixed on the detection body; the dustproof cover is fixed on the upper body surface of the positioning sliding block sleeve; the flange cap is fixed on the upper body surface of the dustproof cover; the middle part of the flange cap is provided with a through hole for assembling the dial indicator; and the dial indicator probe is in surface contact with the upper body of the basic top plate.
Furthermore, the positioning slide block sleeve and the through hole formed by the slide block sleeve cover plate, the base top plate, the dust cover and the flange cap are combined to form a cavity, and the cavity has a common central line.
Further, the number of the outer sliding blocks is two; the inner sliding block is arranged between the two outer sliding blocks; the outer sliding block is provided with a guide groove; bulges matched with the guide grooves are arranged on the two sides of the inner sliding block; the inner slide block bulge slides into the guide grooves of the two outer slide blocks and can slide up and down in the guide grooves.
The upper end of the compression spring is attached to the flange cap, and the lower end of the compression spring is attached to the foundation top plate; the upper end of the spring is attached to the foundation top plate, and the lower end of the spring is attached to the upper end of the inner sliding block; the side surface of the inner sliding block facing the sliding block sleeve cover plate is provided with two horizontal strip-shaped holes, and the sliding block sleeve cover plate is provided with screw holes corresponding to the strip-shaped holes; the limiting screws are assembled in the screw holes and extend to the strip-shaped holes.
Furthermore, a round hole is formed in the upper end of the inner sliding block; the upper body surface of the foundation top plate is provided with a circular groove, and the lower body surface is provided with a groove; the lower end of the compression spring is arranged in the circular groove; the upper end of the spring is arranged in the groove, and the lower end of the spring is attached to the bottom of the circular hole of the inner slide block.
Furthermore, the measuring device also comprises a flange, a spring II, a limit screw I and an adjusting screw, wherein the front part of the sliding measuring pin is a diamond pin corresponding to the pin hole of the measured camshaft, and the rear part of the sliding measuring pin is a cylinder matched with the through hole of the cylinder; a round hole is formed in the end face of the cylinder, and a screw hole corresponding to the adjusting screw is formed behind the round hole; the flange is fixed on the end face of the cylinder; the second spring is arranged in the cylindrical through hole and is positioned between the sliding measuring pin and the flange; the adjusting screw penetrates through the flange and the second spring in sequence and is screwed into the screw hole of the sliding measuring pin; and the side surface of the cylinder is provided with a screw hole for assembling the first limit screw.
Further, the detection tool comprises handles, and the handles are fixed at two ends of the detection tool body.
Compared with the prior art, the invention has the advantages that: 1) the main positioning of the checking fixture is realized by two V-shaped surfaces on the checking fixture body, the circumferential positioning of the checking fixture relative to the camshaft is realized by two outer sliding blocks and an inner sliding block of a positioning sliding block part, and a diamond-shaped pin part at the front end of a sliding measuring pin can smoothly extend into a pin hole of the measured camshaft to serve as a basis for the qualification of the position degree of the measured cam to the pin hole, so that the correct positioning and the uniqueness can be ensured, the physical idea is clear, the dispute is few, the reliability is high, and the detection difficulty of the overlong camshaft is solved; 2) the basic top plate is used for connecting the compression spring and the first spring, the inner sliding block and the outer sliding block have different stretching amounts according to the size of the cam, and the accuracy of data in the measuring process is determined according to the change of a pointer of the dial indicator; 3) the positioning pin and the bolt are matched for use, so that the connection precision between the parts of the detection tool is ensured, and the accuracy of measured data is ensured; 4) the gauge has the advantages of compact structure, convenient, accurate, efficient and safe measurement process.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic side view of the present invention;
FIG. 3 is a schematic view of the positioning block assembly of the present invention;
FIG. 4 is a schematic view of the structure of the measuring device of the present invention;
FIG. 5 is a partial positional block diagram of the present invention;
FIG. 6 is a top plan view of a portion of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following detailed description and accompanying drawings. It should be emphasized that the following description is merely exemplary in nature and is not intended to limit the scope of the invention or its application.
Non-limiting and non-exclusive embodiments will be described with reference to the following figures, wherein like reference numerals refer to like parts, unless otherwise specified.
As shown in fig. 1 to 6, a camshaft cam is to pinhole location degree detection tool, including detecting the body 9, positioning slide block part, measuring device, positioning slide block part distributes on detecting the body 9, positioning slide block part includes the slider subassembly, the slider subassembly lower extreme can with be surveyed the camshaft contact, measuring device distributes in detecting the body 9 tip, measuring device includes sliding sleeve support 37, slide measuring pin 26, sliding sleeve support 37 upper portion and examine a body 9 lower part of the body facial features laminating and fixed, the lower part combines there is the cylinder, the axle center of cylinder is equipped with the through-hole, slide measuring pin 26 and through-hole cooperation. Sliding sleeve support 37 and examine a body 9 and open and have communicating locating hole to insert the locating pin, use the connected mode of bolt cooperation locating pin with sliding sleeve support 37 with examine a body 9 fixed connection, effectively prevent sliding sleeve support 37 and examine a body 9 slip dislocation, influence measurement accuracy.
Two V-shaped surfaces are fixed on the lower body surface of the detector body 9, and inserts 30 are arranged at the contact positions of the inner slide block 23 and the outer slide block 24 with the detected camshaft. The main positioning of the checking fixture is realized by two V-shaped surfaces on the checking fixture body 9, the circumferential positioning of the checking fixture relative to the camshaft is realized by two outer sliding blocks 24 and inner sliding blocks 23 of the positioning sliding block part, and the rabdosia-shaped pin part at the front end of the sliding measuring pin 26 can smoothly extend into a pin hole of the tested camshaft to serve as a basis for the qualification of the position degree of the tested cam to the pin hole, so that the correct positioning and uniqueness can be ensured, the physical idea is clear, the dispute is few, the reliability is high, and the detection difficulty of the overlong camshaft is solved; the insert 30 has good wear resistance.
The upper end of the outer slide block 24 is fixed on the foundation top plate 22 by bolts, the lower end of the outer slide block can be contacted with a measured camshaft, the positioning slide block sleeve 31 is of a concave structure, the slide block sleeve cover plate 32 is fixed on the end surfaces of the protrusions at the two ends of the positioning slide block sleeve 31 and forms a square hole, and the detection body is provided with a through hole at the position corresponding to the square hole; the positioning slide block sleeve 31 is fixed on the detection body 9 by a bolt, the dustproof cover 7 is fixed on the upper body surface of the positioning slide block sleeve 31 by a bolt 4, the flange cap 6 is fixed on the upper body surface of the dustproof cover 7 by a locking bolt 5, and the middle part of the flange cap 6 is provided with a through hole assembly dial indicator 25; the probe of the dial indicator 25 is in surface contact with the upper body of the basic top plate 22. The side surface of the flange cap 6 is provided with a screw hole, a locking screw 36 is arranged to lock the dial indicator 25, and the sleeve surface of the dial indicator 25 is sleeved with a bushing 12 to prevent the locking screw 36 from scraping the dial indicator 25; the two outer sliders 24 and the base top plate 22 can slide along the square hole formed by the positioning slider sleeve 31 and the slider sleeve cover plate 32.
The through hole formed by the positioning slide block sleeve 31 and the slide block sleeve cover plate 32, the base top plate 22, the dust cover 7 and the flange cap 6 are combined to form a cavity and have a common central line.
The number of the outer sliding blocks 24 is two, the inner sliding block 23 is arranged between the two outer sliding blocks 24, and the side surface of each outer sliding block 24 is provided with a guide groove; the two sides of the inner slide block 23 are provided with bulges matched with the guide grooves, and the bulges of the inner slide block 24 slide into the guide grooves of the two outer slide blocks 24 and can slide up and down in the guide grooves. The upper end of the compression spring 11 is attached to the flange cap 6, the lower end of the compression spring is attached to the foundation top plate 22, the upper end of the first spring 21 is attached to the foundation top plate 22, and the lower end of the first spring is attached to the upper end of the inner sliding block 23; two horizontal strip-shaped holes are formed in the side face, facing the sliding block sleeve cover plate 32, of the inner sliding block 23, screw holes are formed in the positions, corresponding to the strip-shaped holes, of the sliding block sleeve cover plate 32, and the limiting screws 33 are assembled in the screw holes and extend to the strip-shaped holes. The limiting screw 33 prevents the inner slide block 23 and the outer slide block 24 from sliding out of the through hole in the checking fixture body 9, and can also prevent the inner slide block 23 and the outer slide block 24 from excessively sliding and exceeding the stroke of the probe of the dial indicator 25, so that the dial indicator 25 is damaged.
The upper end of the inner slide block 23 is provided with a round hole, the upper body surface of the foundation top plate 22 is provided with a round groove, the lower body surface is provided with a groove, and the lower end of the compression spring 11 is arranged in the round groove; the upper end of the first spring 21 is arranged in the groove, and the lower end of the first spring is attached to the bottom of the round hole of the inner sliding block 23. The upper and lower surfaces of the base top plate 22 are connected with the springs in different modes, so that the space of the base top plate 22 is fully utilized, and the springs are connected more tightly.
The front part of the sliding measuring pin 26 is a diamond pin corresponding to the pin hole of the measured camshaft, the rear part is a cylinder matched with the through hole of the cylinder of the sliding sleeve bracket 37, the end surface of the cylinder is provided with a round hole, and a screw hole corresponding to the adjusting screw 27 is arranged behind the round hole; the flange 28 is fixed on the end face of the cylinder, the second spring 25 is arranged in the through hole of the cylinder and is positioned between the sliding measuring pin 26 and the flange 28, and the adjusting screw 27 sequentially penetrates through the flange 28 and the second spring 25 and is screwed into the screw hole of the sliding measuring pin 26; the side surface of the cylinder is provided with a screw hole for assembling the first limit screw 29. The first limit screw 29 can be used for tightly closing the position of the sliding measuring pin 26, the adjusting screw 27 is rotated to control the position of the sliding measuring pin 26, the second spring 25 gives elastic buffering to the sliding measuring pin 26, and the sliding measuring pin 26 is more stable in the measuring process.
The handle 3 is fixed at two ends of the detector body 9 by bolts 10.
The specific implementation of the invention is described by using the project of measuring the position degree of the cam to the pin hole by using a C3000-D camshaft product, and the specific steps are as follows:
1) the C3000-D camshaft was hung on the double roller bearing assembly on the test plate and the journal surfaces and work surfaces were wiped clean with clean cotton cloth.
2) To ensure that the camshaft does not rotate (to lower the rollers on the dual roller bearing assembly) throughout the measurement process, the sliding measuring pin 26 is retracted into the guide hole of the sliding sleeve bracket 37 by the adjusting screw 27.
3) Two V-shaped surfaces on the detection body 9 are arranged on two shaft necks of the camshaft to complete main positioning, and then positioning edges of an inner slide block 23 and an outer slide block 24 of the positioning slide block component are arranged on a first-gear air inlet cam of the camshaft (and the inner side surface of the sliding sleeve support 37 is attached to the end surface of the camshaft to be detected).
4) Slowly rotate and examine utensil (two-way), when examining the dial indicator 25 pointer on the utensil and be in the inflection point with dial indicator 25 zero position to keep examining the utensil and do not move for the camshaft.
5) Keeping the checking fixture to rotate relatively to the camshaft (when the checking fixture rotates relatively, the pointer of the dial indicator 25 reflects), slowly rotating the adjusting screw 27, releasing and extending the sliding measuring pin 26, so that the diamond-shaped pin part at the front end of the sliding measuring pin 26 can smoothly extend into the pin hole of the camshaft to be tested, and taking the diamond-shaped pin part as the basis for the qualified position degree of the camshaft to be tested on the pin hole.
6) The sliding measuring pin 26 is retracted into the guide hole of the sliding sleeve bracket 37 by the adjusting screw 27, and the checking fixture is taken down.
7) All working faces of the checking fixture are wiped clean by clean cotton cloth, and the check fixture is oiled and stored.
Those skilled in the art will recognize that numerous variations are possible in light of the above description, and thus the examples are intended to describe one or more specific embodiments.
While there has been described and illustrated what are considered to be example embodiments of the present invention, it will be understood by those skilled in the art that various changes and substitutions may be made therein without departing from the spirit of the invention. In addition, many modifications may be made to adapt a particular situation to the teachings of the present invention without departing from the central concept described herein. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments and equivalents falling within the scope of the invention.
Claims (7)
1. The utility model provides a camshaft cam examines utensil to pinhole position degree which characterized in that: the device comprises a detection body, positioning slide block components and a measuring device, wherein the positioning slide block components are distributed on the detection body; the positioning slide block component comprises a slide block assembly, and the lower end of the slide block assembly can be in contact with a measured camshaft; the measuring device is distributed at the end part of the checking fixture body, the measuring device comprises a sliding sleeve bracket and a sliding measuring pin, the upper part of the sliding sleeve bracket is attached and fixed with the lower body surface of the checking fixture body, and the lower part of the sliding sleeve bracket is combined with a cylinder; the axis of the cylinder is provided with a through hole; the sliding measuring pin is matched with the through hole;
two V-shaped surfaces are fixed on the lower body surface of the detection tool body; the slide block component comprises an inner slide block and an outer slide block,
the number of the outer sliding blocks is two; the inner sliding block is arranged between the two outer sliding blocks; the outer sliding block is provided with a guide groove; bulges matched with the guide grooves are arranged on the two sides of the inner sliding block; the inner slide block bulge slides into the guide grooves of the two outer slide blocks and can slide up and down in the guide grooves;
the positioning slide block component also comprises a slide block sleeve cover plate, a positioning slide block sleeve, a foundation top plate, a dustproof cover, a flange cap and a dial indicator, wherein the upper end of the outer slide block is fixed on the foundation top plate, and the lower end of the outer slide block can be in contact with a tested camshaft; the positioning slide block sleeve is of a concave structure; the sliding block sleeve cover plate is fixed on the end surfaces of the two ends of the positioning sliding block sleeve, and a square hole is formed; the detection body is provided with a through hole at a position corresponding to the square hole; the positioning slide block sleeve is fixed on the detection body; the dustproof cover is fixed on the upper body surface of the positioning sliding block sleeve; the flange cap is fixed on the upper body surface of the dustproof cover; the middle part of the flange cap is provided with a through hole for assembling the dial indicator; and the dial indicator probe is in surface contact with the upper body of the basic top plate.
2. The tool for checking the location degree of the camshaft cam to the pin hole as claimed in claim 1, wherein: the sliding block assembly comprises an insert block, and the insert block is arranged at the contact position of the inner sliding block and the outer sliding block with the camshaft to be tested.
3. The tool for checking the location degree of the camshaft cam to the pin hole as claimed in claim 1, wherein: the positioning slide block sleeve and the through hole formed by the slide block sleeve cover plate, the base top plate, the dust cover and the flange cap are combined to form a cavity, and the cavity has a common central line.
4. The tool for checking the location degree of the camshaft cam to the pin hole as claimed in claim 1, wherein: the upper end of the compression spring is attached to the flange cap, and the lower end of the compression spring is attached to the foundation top plate; the upper end of the spring is attached to the foundation top plate, and the lower end of the spring is attached to the upper end of the inner sliding block; the side surface of the inner sliding block facing the sliding block sleeve cover plate is provided with two horizontal strip-shaped holes, and the sliding block sleeve cover plate is provided with screw holes corresponding to the strip-shaped holes; the limiting screws are assembled in the screw holes and extend to the strip-shaped holes.
5. The tool for checking the location degree of the camshaft cam to the pin hole as claimed in claim 4, wherein: the upper end of the inner sliding block is provided with a round hole; the upper body surface of the foundation top plate is provided with a circular groove, and the lower body surface is provided with a groove; the lower end of the compression spring is arranged in the circular groove; the upper end of the spring is arranged in the groove, and the lower end of the spring is attached to the bottom of the circular hole of the inner slide block.
6. The tool for checking the location degree of the camshaft cam to the pin hole as claimed in claim 1, wherein: the measuring device also comprises a flange, a spring II, a limit screw I and an adjusting screw, wherein the front part of the sliding measuring pin corresponds to the diamond pin of the camshaft to be measured, and the rear part of the sliding measuring pin is a cylinder matched with the through hole of the cylinder; a round hole is formed in the end face of the cylinder, and a screw hole corresponding to the adjusting screw is formed behind the round hole; the flange is fixed on the end face of the cylinder; the second spring is arranged in the cylindrical through hole and is positioned between the sliding measuring pin and the flange; the adjusting screw penetrates through the flange and the second spring in sequence and is screwed into the screw hole of the sliding measuring pin; and the side surface of the cylinder is provided with a screw hole for assembling the first limit screw.
7. The tool for checking the location degree of the camshaft cam to the pin hole as claimed in claim 1, wherein: the gauge body is characterized by further comprising handles, and the handles are fixed at two ends of the gauge body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611217851.7A CN106643392B (en) | 2016-12-26 | 2016-12-26 | Camshaft cam is to pinhole position degree and is examined utensil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611217851.7A CN106643392B (en) | 2016-12-26 | 2016-12-26 | Camshaft cam is to pinhole position degree and is examined utensil |
Publications (2)
| Publication Number | Publication Date |
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| CN106643392A CN106643392A (en) | 2017-05-10 |
| CN106643392B true CN106643392B (en) | 2022-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201611217851.7A Active CN106643392B (en) | 2016-12-26 | 2016-12-26 | Camshaft cam is to pinhole position degree and is examined utensil |
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Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2639842Y (en) * | 2003-07-04 | 2004-09-08 | 湖南金信化工有限责任公司 | Crank shaft measuring tool |
| CN102721341B (en) * | 2012-06-29 | 2014-09-03 | 长城汽车股份有限公司 | Comprehensive inspection device for measuring position of crankshaft hole |
| CN103486932B (en) * | 2013-08-30 | 2016-01-13 | 广西玉柴机器股份有限公司 | Detect the device of bent axle geometric configuration |
| CN103604342B (en) * | 2013-11-25 | 2016-04-13 | 广西玉柴机器股份有限公司 | Tappet bottom face height difference gauge |
| DE102014205451A1 (en) * | 2014-03-24 | 2015-09-24 | Mahle International Gmbh | Measuring method for quality inspection of a built-up camshaft module |
| CN104019714B (en) * | 2014-06-09 | 2016-11-23 | 广西玉柴机器股份有限公司 | Detection flywheel pin-and-hole and the cubing crossing nail group position degree |
| CN104296617B (en) * | 2014-10-20 | 2017-01-18 | 广西玉柴机器股份有限公司 | Gauge for pin hole position degree and screw hole set position degree of crank end face |
| CN104374296B (en) * | 2014-11-26 | 2017-08-25 | 江苏鸿华特种装备有限公司 | camshaft signal wheel angle detector |
| CN204718544U (en) * | 2015-06-19 | 2015-10-21 | 盛瑞传动股份有限公司 | A kind of fly-wheel scale line start angle cubing |
| CN105066883B (en) * | 2015-08-26 | 2017-11-24 | 神龙汽车有限公司 | A kind of method of quick measurement revolving parts end face pin hole position |
| CN204963715U (en) * | 2015-09-23 | 2016-01-13 | 四川飞亚汽车零部件有限公司 | Bent axle signal disc pinhole position degree detects instrument |
| CN206300581U (en) * | 2016-12-26 | 2017-07-04 | 广西玉柴机器股份有限公司 | A kind of cam of camshaft is to pin hole position cubing |
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2016
- 2016-12-26 CN CN201611217851.7A patent/CN106643392B/en active Active
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