CN105241351A - Detection apparatus for cam basic circle of camshaft - Google Patents
Detection apparatus for cam basic circle of camshaft Download PDFInfo
- Publication number
- CN105241351A CN105241351A CN201510670920.9A CN201510670920A CN105241351A CN 105241351 A CN105241351 A CN 105241351A CN 201510670920 A CN201510670920 A CN 201510670920A CN 105241351 A CN105241351 A CN 105241351A
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- measuring
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- cam base
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The invention discloses a detection apparatus for a cam basic circle of a camshaft. The detection apparatus comprises a corrector, a measuring assembly, a measuring shaft, a measuring sleeve, and an indicating gauge. The corrector includes a first standard cylinder with a first standard diameter and a second standard cylinder with a second standard diameter. The measuring assembly includes a V-shaped measuring claw, which includes a body and two measuring claws. The two measuring claws are symmetrically disposed below the body, and a certain angle is formed between the two measuring claws. The center of the body is equipped with a through hole. The lower end of the measuring shaft penetrates the through hole. The center of the measuring sleeve is equipped with a measuring shaft accommodation hole used for mounting the measuring shaft. The lower end of the measuring sleeve is fixedly connected to the body. A measuring rod of the indicating gauge is fixed to the measuring sleeve, and a measuring head of the indicating gauge abuts against the top surface of the measuring shaft. The detection apparatus carries out measuring when a camshaft is placed horizontally. During measuring, an accurate positioning effect is achieved, measurement errors are minimized, measuring difficulties are reduced, and great repeatability is exhibited. Moreover, the apparatus has a safer and more convenient detection function.
Description
Technical field
The present invention relates to mechanical field, particularly a kind of pick-up unit of cam base circle of camshaft.
Background technology
The detection of the radius of the cam base circle of camshaft generally adopts outside micrometer, Special calipers, general three coordinate machines or camshaft specialized equipment to measure.For the occasion that camshaft length is shorter, use general three coordinate machines or camshaft specialized equipment to measure without any difficulty, but for the occasion of camshaft length more than 2 meters, use general three coordinate machines or camshaft specialized equipment to carry out measuring more difficult; Because measuring point is only limitted to the zone of transition of cam-shaped line, adopt the measuring result error of outside micrometer or Special calipers larger.
The information being disclosed in this background technology part is only intended to increase the understanding to general background of the present invention, and should not be regarded as admitting or imply in any form that this information structure has been prior art that persons skilled in the art are known.
Summary of the invention
The object of the present invention is to provide a kind of pick-up unit of cam base circle of camshaft, thus overcome the defect that checkout equipment difficulty is large or measuring result error is larger of prior art.
For achieving the above object, the invention provides a kind of pick-up unit of cam base circle of camshaft, the normal diameter of cam base circle is between the first normal diameter and the second normal diameter, pick-up unit comprises: check and correction part, and check and correction part comprises the second standard cylinder that the first standard cylinder that diameter is the first normal diameter and diameter are the second normal diameter; Measurement components, measurement components comprises: V-type measuring jaw, and V-type measuring jaw comprises body and two measuring jaws, and two measuring jaws are arranged symmetrically in the lower end of body, and two measuring jaws have a certain degree, and the center of body is provided with through hole; Measure axle, measure the lower end of axle through through hole; Measuring unit, the center of measuring unit is provided with the measurement axle containing hole for installing and measuring axle, and the lower end of measuring unit is fixedly connected with body; And dial gauge, the gauge rod of dial gauge is fixed on measuring unit, and the gauge head of dial gauge abuts with the end face measuring axle; Wherein, under check and correction state, two measuring jaws contact with check and correction the first standard cylinder of part or the outer circumference surface of the second standard cylinder, and the lower end measuring axle abuts with the outer circumference surface of the first standard cylinder or the second standard cylinder; Under measuring state, two measuring jaws contact with the outer circumference surface of cam base circle, measure the lower end of axle and abut with the outer circumference surface of cam base circle.
Preferably, in technique scheme, check and correction part is provided with transition axis, and the first standard cylinder and the second standard round column symmetry are arranged on the both sides of transition axis; Pick-up unit also comprises: base, and base comprises pedestal and supporting walls, and supporting walls is arranged on the center of pedestal, and the center of the end face of supporting walls is provided with the first arc groove, and the diameter of the first arc groove is identical with the diameter of transition axis; Gland, the center of the bottom surface of gland is provided with diameter second arc groove identical with the diameter of transition axis; Under installment state, transition axis is fixed between the first arc groove and the second arc groove.
Preferably, in technique scheme, the position that measuring jaw contacts with cam base circle is provided with insert, and insert is made up of wimet.
Preferably, in technique scheme, measure axle and be provided with axial stopper slot, measuring unit is provided with stop screw hole, and stop screw is through stop screw hole, and the end of stop screw is positioned at stopper slot.
Preferably, in technique scheme, the external cylindrical surface measuring the upper end of axle is provided with step surface, and the end face measuring axle containing hole is provided with spring retention groove; Pick-up unit also comprises spring, and spring fitting is between step surface and spring retention groove.
Preferably, in technique scheme, pick-up unit also comprises tight cap, and the end face measuring axle containing hole measurement cover extends to bottom surface, and tight cap is fixed on the end face of measuring unit; The center of tight cap is provided with the center pit of the gauge rod installing dial gauge, and spring retention groove is arranged on the lower end of center pit; The sidewall of tight cap is provided with locking screw nail.
Preferably, in technique scheme, measure the bottom of axle and comprise the abutting shaft part that middle shaft part and diameter be less than middle shaft part, the lower end abutting shaft part is pommel.
Preferably, in technique scheme, the lower end of measuring unit is provided with spacing shaft part, and through hole from top to bottom comprises spacing shaft part containing hole and diameter is less than the abutting shaft part containing hole abutting shaft part containing hole.
Preferably, in technique scheme, the corresponding position of the lower surface of measuring unit and the end face of V-type measuring jaw is arranged with dowel hole respectively.
Preferably, in technique scheme, between the gauge rod of dial gauge and the center pit of tight cap, be provided with lining.
Compared with prior art, the present invention has following beneficial effect:
This device is measured when camshaft horizontal positioned, accurate positioning during measurement, and measuring error is little, and it is less, reproducible to measure difficulty, and detection is safer, convenient.
Accompanying drawing explanation
Fig. 1 is the check and correction assembly of pick-up unit and the wiring layout of measurement components of cam base circle according to camshaft of the present invention.
Fig. 2 is the right view of Fig. 1.
Fig. 3 is the measurement components of pick-up unit and the wiring layout of camshaft of cam base circle according to camshaft of the present invention.
Fig. 4 is the right view of Fig. 3.
Fig. 5 is the structural drawing of the measurement components of the pick-up unit of cam base circle according to camshaft of the present invention.
Fig. 6 is the structural drawing of the measurement components of the pick-up unit of cam base circle according to camshaft of the present invention.
Fig. 7 is the structural drawing of the measurement components of the pick-up unit of cam base circle according to camshaft of the present invention.
Fig. 8 is the structural drawing of the measurement components of the pick-up unit of cam base circle according to camshaft of the present invention.
Fig. 9 is the structural drawing of the measurement components of the pick-up unit of cam base circle according to camshaft of the present invention.
Figure 10 is the structural drawing of the measurement components of the pick-up unit of cam base circle according to camshaft of the present invention.
Figure 11 is the structural drawing of the measurement components of the pick-up unit of cam base circle according to camshaft of the present invention.
Figure 12 is the structural drawing of the measurement components of the pick-up unit of cam base circle according to camshaft of the present invention.
Figure 13 is the structural drawing of the measurement components of the pick-up unit of cam base circle according to camshaft of the present invention.
Figure 14 is the structural drawing of the measurement components of the pick-up unit of cam base circle according to camshaft of the present invention.
Figure 15 is the structural drawing of the measurement components of the pick-up unit of cam base circle according to camshaft of the present invention.
Figure 16 is the structural drawing of the measurement components of the pick-up unit of cam base circle according to camshaft of the present invention.
Figure 17 is the structural drawing of the measurement components of the pick-up unit of cam base circle according to camshaft of the present invention.
Figure 18 is the structural drawing of the measurement components of the pick-up unit of cam base circle according to camshaft of the present invention.
Figure 19 is the structural drawing of the measurement components of the pick-up unit of cam base circle according to camshaft of the present invention.
Figure 20 is the structural drawing of the measurement components of the pick-up unit of cam base circle according to camshaft of the present invention.
Figure 21 is the structural drawing of the measurement components of the pick-up unit of cam base circle according to camshaft of the present invention.
Figure 22 is the structural drawing of the measurement components of the pick-up unit of cam base circle according to camshaft of the present invention.
Figure 23 is the structural drawing of the measurement components of the pick-up unit of cam base circle according to camshaft of the present invention.
Figure 24 is the structural drawing of the measurement components of the pick-up unit of cam base circle according to camshaft of the present invention.
Figure 25 is the structural drawing of the measurement components of the pick-up unit of cam base circle according to camshaft of the present invention.
Main Reference Numerals illustrates:
1-measuring unit, 2-measures axle, 3-V type measuring jaw, 4-insert, and 5-proofreads assembly, 6-dial gauge, the tight cap of 7-, 8-camshaft, 81-cam base circle, 9-spring.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail, but is to be understood that protection scope of the present invention not by the restriction of embodiment.
Clearly represent unless otherwise other, otherwise in whole instructions and claims, term " comprise " or its conversion as " comprising " or " including " etc. by be understood to include the element of stating or ingredient, and do not get rid of other element or other ingredient.
As shown in Figures 1 to 4, measurement components and check and correction assembly 5 is comprised according to the pick-up unit of the cam base circle of the camshaft of the specific embodiment of the invention.As viewed in figures 5-8, measurement components comprises measuring unit 1, measurement axle 2, V-type measuring jaw 3, insert 4, tight cap 7 and spring 9.
As shown in figs. 9-10, measure axle 2 and comprise spring fitting shaft part 22, middle shaft part 21 and abut shaft part 23, the diameter of spring fitting shaft part 22 and abutting shaft part 23 is less than the diameter of middle shaft part 21.The lower end abutting shaft part 23 is pommel 24.The outer circumference surface of middle shaft part 21 is provided with axial stopper slot 25.
As figs 11-13, the center of measuring unit 1 is provided with measures axle containing hole 14, and the upper end measuring axle containing hole 14 is provided with internal thread segment 13, and lower end is provided with spacing shaft part 11.Measuring unit 1 is provided with stop screw hole.Measuring unit 1 is provided with the flange for being connected with V-type measuring jaw 3, and flange is provided with screw 15, and is arranged with two dowel holes 16.
As illustrated in figures 14-16, V-type measuring jaw 3 comprises the lower end that body 31, first measuring jaw 32 and the second measuring jaw 33, first measuring jaw 32 and the second measuring jaw 33 are arranged symmetrically in body 31, and the two has a certain degree.Preferably, two measuring jaws obtain angle is 90 °.The corresponding position of the first measuring jaw 32 and the second measuring jaw 33 is respectively equipped with insert mounting groove 34, for installing insert 4 (as shown in Figure 1).The end face of body 31 is arranged with dowel hole 38 and screw 37.The center of body 31 is provided with through hole, and through hole is up big and down small stepped hole, and larger hole is spacing shaft part containing hole 35, and less hole is for abutting shaft part containing hole 36.
As shown in figs. 17-18, the middle part of tight cap 7 is provided with flange 71, and lower end is provided with connecting portion 72, and the lower end of connecting portion 72 is provided with external thread.The center of tight cap 7 is provided with center pit 73, and the lower end of center pit 73 is provided with spring retention groove 75.The top of tight cap 7 is provided with radial locking screw nail 74.
As viewed in figures 5-8, measure axle 2 and be arranged in the measurement axle containing hole 14 of measuring unit 1, and prevent measurement axle 2 from coming off by stop screw.Tight cap 7 is fixed on the end face of measuring unit 1, spring 9 be arranged on that spring fitting shaft part 22 and middle shaft part 21 formed between step surface and the spring retention groove 75 of tight cap 7, the gauge rod of dial gauge 6 is fixed in the center pit of tight cap 7, and sandwiched lining between the gauge rod of dial gauge 6 and center pit, the gauge head of dial gauge 6 abuts with the end face measuring axle 2.V-type measuring jaw 3 and measuring unit 1 are mutually located by dowel hole and are fixedly connected with, and the spacing shaft part 11 of measuring unit 1 is contained in spacing shaft part containing hole 35, measure the abutting shaft part 23 of axle 2 through abutting shaft part containing hole 36 to downward-extension.
As shown in Figure 19-20, check and correction assembly 5 comprises base 51, check and correction part 52 and gland 53.As shown in fig. 21-22, base 51 comprises pedestal 511 and supporting walls 512, and supporting walls 512 is arranged on the center of pedestal 511, and the center of the end face of supporting walls 512 is provided with the first arc groove 513.
As Figure 23-24, second standard cylinder 521, the D01 < D02 of the diameter that check and correction part 52 comprises transition axis 523 and is arranged on transition axis 523 both sides to be the first standard cylinder 522 of the first normal diameter D01 and diameter be the second normal diameter D02.The diameter of transition axis 523 is identical with the diameter of the first arc groove 513.As shown in figure 25, the center of the bottom surface of gland 53 is provided with diameter second arc groove 531 identical with the diameter of transition axis 523, and the symmetria bilateralis of gland 53 is provided with screw 532.Under installment state, transition axis 523 is fixed between the first arc groove 513 and the second arc groove 531.
When using this pick-up unit to measure, comprise the steps:
1) by tested camshaft support on roller wheel bearing assembly, with the clean each working surface of cotton wiped clean.
2) measurement components and check and correction assembly are placed on platform, with the clean each working surface of cotton wiped clean.
3) as shown in Figure 1-2, measurement components is placed in respectively on the first standard cylinder 522 outer circumference surface of check and correction assembly, two of V-type measuring jaw measuring jaws are contacted with the first standard cylinder 522 outer circumference surface, pommel 24 abuts with the outer circumference surface of the first standard cylinder 522, now read the reading of dial gauge, as the first reading of standard A01.Use the same method and measure the second reading of standard A02 on the second standard cylinder 521, the scope between the first reading of standard A01 and the second reading of standard A02 is as critical field.
4) as shown in Figure 3-4, measurement components is placed on any part of the outer circumference surface of the cam base circle 81 of tested camshaft, two of V-type measuring jaw measuring jaws are contacted with the outer circumference surface of cam base circle 81, and pommel 24 abuts with the outer circumference surface of cam base circle 81, now reads the reading A of dial gauge.By judging whether A determines in critical field that whether the radius of tested cam base circle is qualified.
5) rotating cam axle, by step 4) method measure the radius of all cam base circles.
6) measure end with the clean each working surface of cotton wiped clean, oil and deposit and preserve.
This device is measured when camshaft horizontal positioned, accurate positioning during measurement, and measuring error is little, and it is less, reproducible to measure difficulty, and detection is safer, convenient.
The aforementioned description to concrete exemplary of the present invention is to illustrate and the object of illustration.These descriptions not want the present invention to be defined as disclosed precise forms, and obviously, according to above-mentioned instruction, can much change and change.The object selected exemplary embodiment and describe is to explain certain principles of the present invention and practical application thereof, thus those skilled in the art can be realized and utilize various different exemplary of the present invention and various different selection and change.Scope of the present invention is intended to limited by claims and equivalents thereof.
Claims (10)
1. a pick-up unit for the cam base circle of camshaft, the normal diameter of described cam base circle, between the first normal diameter and the second normal diameter, is characterized in that, described pick-up unit comprises:
Check and correction part, described check and correction part comprises the second standard cylinder that the first standard cylinder that diameter is the first normal diameter and diameter are the second normal diameter;
Measurement components, described measurement components comprises:
V-type measuring jaw, described V-type measuring jaw comprises body and two measuring jaws, and two described measuring jaws are arranged symmetrically in the lower end of described body, and two described measuring jaws have a certain degree, and the center of described body is provided with through hole;
Measure axle, the lower end of described measurement axle is through described through hole;
Measuring unit, the center of described measuring unit is provided with the measurement axle containing hole for installing described measurement axle, and the lower end of described measuring unit is fixedly connected with described body; And
Dial gauge, the gauge rod of described dial gauge is fixed on described measuring unit, and the gauge head of described dial gauge abuts with the end face of described measurement axle;
Wherein, under check and correction state, two described measuring jaws contact with the first standard cylinder of described check and correction part or the outer circumference surface of the second standard cylinder, and the lower end of described measurement axle abuts with the outer circumference surface of described first standard cylinder or the second standard cylinder; Under measuring state, two described measuring jaws contact with the outer circumference surface of described cam base circle, and the lower end of described measurement axle abuts with the outer circumference surface of described cam base circle.
2. the pick-up unit of the cam base circle of camshaft according to claim 1, is characterized in that, described check and correction part is provided with transition axis, and described first standard cylinder and the second standard round column symmetry are arranged on the both sides of described transition axis;
Described pick-up unit also comprises:
Base, described base comprises pedestal and supporting walls, and described supporting walls is arranged on the center of described pedestal, and the center of the end face of described supporting walls is provided with the first arc groove, and the diameter of described first arc groove is identical with the diameter of described transition axis;
Gland, the center of the bottom surface of described gland is provided with diameter second arc groove identical with the diameter of described transition axis; Under installment state, described transition axis is fixed between described first arc groove and described second arc groove.
3. the pick-up unit of the cam base circle of camshaft according to claim 1, is characterized in that, the position that described measuring jaw contacts with described cam base circle is provided with insert, and described insert is made up of wimet.
4. the pick-up unit of the cam base circle of camshaft according to claim 3, it is characterized in that, described measurement axle is provided with axial stopper slot, and described measuring unit is provided with stop screw hole, stop screw is through described stop screw hole, and the end of stop screw is positioned at described stopper slot.
5. the pick-up unit of the cam base circle of camshaft according to claim 4, is characterized in that, the external cylindrical surface of the upper end of described measurement axle is provided with step surface, and the end face of described measurement axle containing hole is provided with spring retention groove;
Described pick-up unit also comprises spring, and described spring fitting is between described step surface and described spring retention groove.
6. the pick-up unit of the cam base circle of camshaft according to claim 5, it is characterized in that, described pick-up unit also comprises tight cap, and described measurement axle containing hole extends to bottom surface from the end face of described measuring unit, and described tight cap is fixed on the end face of described measuring unit; The center of described tight cap is provided with the center pit of the gauge rod installing described dial gauge, and described spring retention groove is arranged on the lower end of described center pit; The sidewall of described tight cap is provided with locking screw nail.
7. the pick-up unit of the cam base circle of camshaft according to claim 1, is characterized in that, the bottom of described measurement axle comprises the abutting shaft part that middle shaft part and diameter are less than described middle shaft part, and the lower end of described abutting shaft part is pommel.
8. the pick-up unit of the cam base circle of camshaft according to claim 7, it is characterized in that, the lower end of described measuring unit is provided with spacing shaft part, and described through hole from top to bottom comprises the abutting shaft part containing hole that spacing shaft part containing hole and diameter are less than described abutting shaft part containing hole.
9. the pick-up unit of the cam base circle of camshaft according to claim 1, is characterized in that, the corresponding position of the lower surface of described measuring unit and the end face of described V-type measuring jaw is arranged with dowel hole respectively.
10. the pick-up unit of the cam base circle of camshaft according to claim 6, is characterized in that, is provided with lining between the gauge rod of described dial gauge and the center pit of described tight cap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510670920.9A CN105241351A (en) | 2015-10-15 | 2015-10-15 | Detection apparatus for cam basic circle of camshaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510670920.9A CN105241351A (en) | 2015-10-15 | 2015-10-15 | Detection apparatus for cam basic circle of camshaft |
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| CN105241351A true CN105241351A (en) | 2016-01-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510670920.9A Pending CN105241351A (en) | 2015-10-15 | 2015-10-15 | Detection apparatus for cam basic circle of camshaft |
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Cited By (5)
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| CN106705799A (en) * | 2016-12-26 | 2017-05-24 | 重庆市银钢通科技有限公司 | Cam excircle detection device |
| CN108637796A (en) * | 2018-05-20 | 2018-10-12 | 余静远 | A kind of centralizer and centering method |
| CN108827120A (en) * | 2018-09-05 | 2018-11-16 | 广西玉柴机器股份有限公司 | A kind of internal groove diameter measuring device |
| CN111307021A (en) * | 2020-03-03 | 2020-06-19 | 浙江中技建设工程检测有限公司 | Diameter measuring device for outer wall of cambered surface structure and using method thereof |
| CN113091579A (en) * | 2019-12-23 | 2021-07-09 | 长春市春求科技开发有限公司 | Gauge for measuring symmetry and height of combined teeth |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106705799A (en) * | 2016-12-26 | 2017-05-24 | 重庆市银钢通科技有限公司 | Cam excircle detection device |
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| CN108637796B (en) * | 2018-05-20 | 2019-09-17 | 泰州市天宇交通器材有限公司 | A kind of centralizer and centering method |
| CN108827120A (en) * | 2018-09-05 | 2018-11-16 | 广西玉柴机器股份有限公司 | A kind of internal groove diameter measuring device |
| CN108827120B (en) * | 2018-09-05 | 2024-02-09 | 广西玉柴机器股份有限公司 | Internal groove diameter measuring device |
| CN113091579A (en) * | 2019-12-23 | 2021-07-09 | 长春市春求科技开发有限公司 | Gauge for measuring symmetry and height of combined teeth |
| CN111307021A (en) * | 2020-03-03 | 2020-06-19 | 浙江中技建设工程检测有限公司 | Diameter measuring device for outer wall of cambered surface structure and using method thereof |
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Application publication date: 20160113 |