CN205300560U - Theoretical profile testing arrangement of conjugate cam - Google Patents
Theoretical profile testing arrangement of conjugate cam Download PDFInfo
- Publication number
- CN205300560U CN205300560U CN201520871747.4U CN201520871747U CN205300560U CN 205300560 U CN205300560 U CN 205300560U CN 201520871747 U CN201520871747 U CN 201520871747U CN 205300560 U CN205300560 U CN 205300560U
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- cam
- roller
- conjugate
- conjugate cam
- axle
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
(B, ) the utility model discloses a theoretical profile testing arrangement of conjugate cam is including cam angle location rotation ware, cam clamping part, main cam profile measurement component and time cam and roller clearance measurement component. The utility model discloses a theoretical profile testing arrangement of conjugate cam can not only the precision measurement goes out conjugate cam's theoretical profile, and easy and simple to handle, and manufacturing cost is cheap relatively. The utility model discloses replacing the high accuracy optical dividing head that costs an arm and a leg with cam angle positioning control ware, utilizing procedure and automatic control to rectify simultaneously, guarantee high resolution, accomplish the accurate positioning and show the angle displacement of cam, angle location recall factor reaches (b) (b) 0.2 (b) (b), and the precision is suitable with high accuracy optical dividing head, moreover convenient to use, main cam profile face is being hugged closely to its first roller under the effect of pressure spring, measure the utmost point footpath of main cam with the amesdial, its conjugate cam profile detects and still includes the function test, when main cam and roller full engagement, utilizes the thickness gage to detect go back to the clearance between cam and the second roller. (B, )
Description
Technical field
This utility model belongs to loom field, is specifically related to a kind of conjugate cam pitch curve test device.
Background technology
At present, positive type conjugate cam mechanism is widely used on high speed loom, positive type conjugate cam mechanism adopts Shape closed, when Warp opening extreme higher position and extreme lower position, workpiece stress is maximum, there is higher pair in the position that stress is maximum and lost efficacy in short-term, under the effect of inertia force, cam bawl departs from cam contour, departs from cam contour from roller and again contacts, and driven rod member produces to rise jumps and strong vibration. Therefore the manufacture and the measurement requirement that realize the positive shedding conjugate cam of Shape closed are high, are the difficult points during cam mechanism manufactures.
Cam contour is not straight line and the combination of circle, and contour curve is variable curvature and the curve becoming lift. What work in cam mechanism is pitch curve, is not cam cam profile. What pitch curve was measured is the track of roller centre, and pitch curve is the length that cam often turns between the cam centre of gyration and the roller centre that an angle is corresponding. Detection pitch curve is a difficult job, and the profile that the actual cam of making goes out with mathematical calculation is difficult to accomplish the high-precision survey tool of consistent, inconsistent error requirements. Pitch curve generally represents with polar coordinates, and measuring profile has two values, and one is angle, and one is pole electrical path length. 360 �� of angles turn 1 �� or 0.5 �� and measure corresponding footpath, pole, and the not high mechanical dividing heads of required precision, high-acruracy survey optical dividing head, high-precision optical dividing head price is significantly high.
Conjugate cam is double-linked cam, it is desirable to roller at any drive position, two rollers and cam can tight mesh, this is difficult to accomplish. Mismachining tolerance and alignment error are required significantly high by tight mesh, the angle error especially installed. Error produces the gap between roller and cam, pushes and clash into.Gap between roller and cam is how many, and gap franchise is how many, will pass through measure and make for determining.
Pitch curve detection includes the mesh degree of the coordinate numerical value of profile, Angle Position deviation, the precision of roller, roller and cam and the surface quality etc. of profile. Measurement to carry out in the constant temperature being free controlled atmosphere to save, to ensure that the Deformation control of cam is in only small scope. The detection of conjugate cam profile also includes Function detection, when main cam and roller are at a fully engaged, detects go back to the gap between cam and roller.
Utility model content
In order to meet the demand, this utility model aims to provide a kind of conjugate cam pitch curve test device.
For realizing above-mentioned technical purpose, reaching above-mentioned technique effect, this utility model is achieved through the following technical solutions:
A kind of conjugate cam pitch curve test device, by cam angle locating rotation device, cam clamping parts, main cam profile measures parts and time cam and roller clearance is measured parts and formed;
Described cam angle locating rotation device includes cam angle locating rotation controller, cam program loader, display, resolver and shaft coupling, described cam angle locating rotation controller connects described cam program loader, described display and described resolver respectively, and the output shaft of described resolver is connected with described shaft coupling;
Described cam clamping parts include axle, conjugate cam, the first roller, the second roller, ring washer, nut, tailstock and top; The main cam of described conjugate cam engages with described first roller, and the cam that returns of described conjugate cam engages with described second roller; Described conjugate cam, described ring washer and described nut are all enclosed within described axle, described axle is provided with a step, the cam that returns of described conjugate cam leans against on the step of described axle, described ring washer nuzzles the main cam of described conjugate cam, described conjugate cam is locked in described axle by described ring washer and described nut, one end of described axle top is withstood by described, described top being arranged on described tailstock, the other end of described axle is connected with the output shaft of described resolver by described shaft coupling;
Described main cam profile is measured parts and is included amesdial, spring, slide block, skateboards slot and portable dial framework; Being provided with one piece of moveable described slide block in described skateboards slot, described slide block top is provided with a circular shaft, and described spring housing is on described circular shaft; Described amesdial is arranged on the extension rod of described portable dial framework, and described amesdial is positioned at the top of described skateboards slot, the measurement head top contact at the top of described skateboards slot Yu described circular shaft of described amesdial; Described slide block bottom and described first roller contact, described first roller is close to the main cam of described conjugate cam under the effect of described spring, and described first roller and described slide block are tight fit;
The described cam that returns includes the double, two roller endplay devices of conjugate cam and a feeler with roller clearance measurement parts, the double, two roller endplay device of described conjugate cam is by described conjugate cam, described first roller, described second roller, first fork and the second fork composition, described first roller and described second roller are separately positioned on described first fork and one end of described second fork, the main cam of described conjugate cam is at a fully engaged with described first roller, clearance delta is there is in returning of described conjugate cam between cam and described second roller, described feeler is utilized to measure the described clearance delta returned between cam and described second roller.
Further, the equal diameters of described first roller and described second roller, and diameter is equal to the diameter of actually used roller.
Further, described extension rod keeps vertical with described portable dial framework scale groove.
The beneficial effects of the utility model are as follows:
This utility model provides a kind of high-precision conjugate cam pitch curve survey tool, it is possible to accurately measure the pitch curve of conjugate cam. This utility model cam angle register control replaces expensive high-precision optical dividing head, utilize program simultaneously and automatically control correction, ensure high-resolution, accomplish to be accurately positioned and show the angular displacement of cam, location, angle recall factor reaches 0.2 ��, precision is suitable with high-precision optical dividing head, and easy to use; First roller of the present utility model is close to main cam contoured surface under the effect of stage clip, measures the footpath, pole of main cam with amesdial; Conjugate cam profile of the present utility model detection also includes Function detection, when main cam and roller are at a fully engaged, utilizes feeler to detect go back to the gap between cam and the second roller.
Described above is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be practiced according to the content of description, below with preferred embodiment of the present utility model and coordinate accompanying drawing to describe in detail. Detailed description of the invention of the present utility model is shown in detail in by following example and accompanying drawing thereof.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by of the present utility model, constitutes the part of the application, and schematic description and description of the present utility model is used for explaining this utility model, is not intended that improper restriction of the present utility model. In the accompanying drawings:
Fig. 1 is conjugate cam pitch curve of the present utility model test apparatus structure schematic diagram;
Fig. 2 is the pitch curve schematic diagram of measurement main cam profile of the present utility model;
Fig. 3 is the double; two roller endplay device gap measuring apparatus schematic diagram of conjugate cam of the present utility model.
Detailed description of the invention
Below with reference to the accompanying drawings and in conjunction with the embodiments, this utility model is described in detail.
Shown in Figure 1, a kind of conjugate cam pitch curve test device, by cam angle locating rotation device, cam clamping parts, main cam profile measures parts and time cam and roller clearance is measured parts and formed.
Shown in Figure 3, conjugate cam mechanism is generally adopted the double; two roller endplay device of conjugate cam, and the double; two roller endplay device of described conjugate cam is made up of described conjugate cam 7, described first roller 8, described second roller the 9, first fork 20 and the second fork 21.
Described cam angle locating rotation device includes cam angle locating rotation controller 1, cam program loader 2, display 3, resolver 4 and shaft coupling 5, described cam angle locating rotation controller 1 connects described cam program loader 2, described display 3 and described resolver 4 respectively, and the output shaft of described resolver 4 is connected with described shaft coupling 5.
Pitch curve polar coordinates represents, measuring profile has two values, and one is angle, and one is pole electrical path length. Cam circles 360 ��, and profile measurement requirement often turns over angle 1 �� or 0.5 ��, measures corresponding footpath, pole. Cam orientation pivoting controller is exactly High-precision angle location, 1 �� or 0.5 ��. Location data 360,1 �� of interval; Location data 720,0.5 �� of interval. Utilizing program and automatically control correction guarantee high-resolution, location, the angle recall factor of pivoting controller reaches 0.2 ��.
Shown in Figure 2, Fig. 2 represents the schematic diagram of the pitch curve measuring main cam profile, and the first roller is meshed with main cam profile, as Fig. 2 measures the first roller centre B1��B2��B3Length OB to main cam centre of gyration O1��OB2��OB3, measure OB simultaneously1��OB2��OB3Corresponding angle, ��1����2����3��
Described cam clamping parts include axle 6, conjugate cam the 7, first roller the 8, second roller 9, ring washer 10, nut 11, tailstock 12 and top 13;The main cam 71 of described conjugate cam 7 engages with described first roller 8, and the cam 72 that returns of described conjugate cam 7 engages with described second roller 9, described conjugate cam 7, described ring washer 10 is all enclosed within described axle 6, described axle 6 is high accuracy axle, described axle 6 is provided with a step, the cam 72 that returns of described conjugate cam 7 leans against on the step of described axle 6, described ring washer 10 nuzzles the main cam 71 of described conjugate cam 7, described axle 6 offers one section of fine thread, the rotation of described nut 11 is located at fine thread place, described conjugate cam 7 is locked in described axle 6 by described ring washer 10 and described nut 11, one end of described axle 6 is withstood by described top 13, ensure that described axle 6 can rotate, described top 13 are arranged on described tailstock 12, the other end of described axle 6 is connected with the output shaft of described resolver 4 by described shaft coupling 5.
Axle 6 described in elder generation's clamping during installation, rotates described axle 6, corrects the circular runout of described axle 6. Then conjugate cam 7 described in clamping locking in described axle 6, described conjugate cam 7 both ends of the surface must meet the requirement vertical with cam hole.
When detecting disc cam profile, the slave state regardless of roller is direct acting or swing, measures head and be arranged to heart direct acting mode with tested cam during detection.
Described main cam profile is measured parts and is included amesdial 14, spring 15, slide block 16, skateboards slot 17 and portable dial framework 18; Being provided with one piece of moveable described slide block 16 in described skateboards slot 17, described slide block 16 top is provided with a circular shaft, and described spring 15 is enclosed within described circular shaft; Described amesdial 14 is arranged on the extension rod 19 of described portable dial framework 18, and described amesdial 14 is positioned at the top of described skateboards slot 17, the top contact measuring the head top at described skateboards slot 17 and described circular shaft of described amesdial 14; Described slide block 16 bottom contacts with described first roller 8, described first roller 8 is close to the main cam 71 of described conjugate cam 7 under the effect of described spring 15, described first roller 8 is tight fit with described slide block 16, and described first roller 8 is combined into an entirety with described slide block 16.
Described axle 6 rotates with described main cam 71, described main cam 71 turns over an angle, described first roller 8 is mobile with the variation of footpath, cam pole, described slide block 16 circular shaft moves with described first roller 8, the measurement head of described amesdial 14 and described slide block 16 circular shaft top contact, read amount of movement from described amesdial 14.
The effect of described portable dial framework 18 is to extend measurement scope, and described extension rod 19 can move up and down along the table scale groove of described amesdial 14, and the movement of described extension rod 19 must keep vertical with the scale groove of described portable dial framework 18. With described main cam 71 basic circle for zero point, measure the lift of described main cam 71. The range of described amesdial 14 is little, if lift is more than the range of described amesdial 14, and extension rod 19 range extension of removable described portable dial framework 18.
Because measuring the pitch curve of cam, so the diameter of described first roller 8 and described second roller 9 is necessarily equal to the diameter of actually used roller and the equal diameters of described first roller 8 and described second roller 9.
The described cam that returns includes the double; two roller endplay devices of conjugate cam and a feeler with roller clearance measurement parts, when the main cam 71 of described conjugate cam 7 is at a fully engaged with described first roller 8, there is gap between cam 72 and described second roller 9 in returning of described conjugate cam 7.Shown in Figure 3, Fig. 3 represents that conjugate cam is two disc cams, and the double; two roller endplay device of conjugate cam exists clearance delta, utilizes described feeler to measure the size of the described clearance delta returned between cam 72 and described second roller. Feeler is used to two lamellar gauges of gap length between face that combine of inspection, directly reads the size in gap with clearance gauge.
The machining accuracy of the double; two roller endplay device of conjugate cam is made up of the tolerance of pitch curve and each rod member, and the tolerance of each rod member includes the rod members such as the established angle of centre-to-centre spacing, the bar length of double rocking lever, the angle of double rocking lever, conjugate cam and the tolerance of assembling key element. The combination of these tolerances determines roller and the gap gone back between cam contour, and gap length determines the dynamic performance of conjugate cam mechanism, and gap length is the most important precision of conjugation mechanism. Gap is the comprehensive of tolerance, and high accuracy conjugate cam manufacturing cost is significantly high, and clearance requirement is below 0.01 millimeter.
Above-described embodiment, simply to illustrate that technology of the present utility model design and feature, its objective is to be in that to allow one of ordinary skilled in the art will appreciate that content of the present utility model and to implement according to this, can not limit protection domain of the present utility model with this. The change of every equivalence done by the essence of this utility model content or modification, all should be encompassed in protection domain of the present utility model.
Claims (3)
1. a conjugate cam pitch curve test device, it is characterised in that: measured parts and time cam formed with roller clearance measurement parts by cam angle locating rotation device, cam clamping parts, main cam profile;
Described cam angle locating rotation device includes cam angle locating rotation controller (1), cam program loader (2), display (3), resolver (4) and shaft coupling (5), described cam angle locating rotation controller (1) connects described cam program loader (2), described display (3) and described resolver (4) respectively, and the output shaft of described resolver (4) is connected with described shaft coupling (5);
Described cam clamping parts include axle (6), conjugate cam (7), the first roller (8), the second roller (9), ring washer (10), nut (11), tailstock (12) and top (13), the main cam (71) of described conjugate cam (7) engages with described first roller (8), and the cam (72) that returns of described conjugate cam (7) engages with described second roller (9), described conjugate cam (7), described ring washer (10) and described nut (11) are all enclosed within described axle (6), described axle is provided with a step on (6), the cam (72) that returns of described conjugate cam (7) leans against on the step of described axle (6), described ring washer (10) nuzzles the main cam (71) of described conjugate cam (7), described conjugate cam (7) is locked in described axle (6) by described ring washer (10) and described nut (11), one end of described axle (6) is withstood by described top (13), described top (13) are arranged on described tailstock (12), the other end of described axle (6) is connected with the output shaft of described resolver (4) by described shaft coupling (5),
Described main cam profile is measured parts and is included amesdial (14), spring (15), slide block (16), skateboards slot (17) and portable dial framework (18); Being provided with one piece of moveable described slide block (16) in described skateboards slot (17), described slide block (16) top is provided with a circular shaft, and described spring (15) is enclosed within described circular shaft; Described amesdial (14) is arranged on the extension rod (19) of described portable dial framework (18), described amesdial (14) is positioned at the top contact of the top of described skateboards slot (17), the measurement head of described amesdial (14) top at described skateboards slot (17) and described circular shaft;Described slide block (16) bottom contacts with described first roller (8), described first roller (8) is close to the main cam (71) of described conjugate cam (7) under the effect of described spring (15), and described first roller (8) and described slide block (16) are tight fit;
The described cam that returns includes the double, two roller endplay devices of conjugate cam and a feeler with roller clearance measurement parts, the double, two roller endplay device of described conjugate cam is by described conjugate cam (7), described first roller (8), described second roller (9), first fork (20) and the second fork (21) composition, described first roller (8) and described second roller (9) are separately positioned on one end of described first fork (20) and described second fork (21), the main cam (71) of described conjugate cam (7) is at a fully engaged with described first roller (8), clearance delta is there is in returning of described conjugate cam (7) between cam (72) and described second roller (9), described feeler is utilized to measure the described clearance delta returned between cam (72) and described second roller.
2. conjugate cam pitch curve tests device according to claim 1, it is characterised in that: the equal diameters of described first roller (8) and described second roller (9), and diameter is equal to the diameter of actually used roller.
3. conjugate cam pitch curve tests device according to claim 1, it is characterised in that: described extension rod (19) keeps vertical with the scale groove of described portable dial framework (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520871747.4U CN205300560U (en) | 2015-11-04 | 2015-11-04 | Theoretical profile testing arrangement of conjugate cam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520871747.4U CN205300560U (en) | 2015-11-04 | 2015-11-04 | Theoretical profile testing arrangement of conjugate cam |
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| Publication Number | Publication Date |
|---|---|
| CN205300560U true CN205300560U (en) | 2016-06-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520871747.4U Withdrawn - After Issue CN205300560U (en) | 2015-11-04 | 2015-11-04 | Theoretical profile testing arrangement of conjugate cam |
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| Country | Link |
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| CN (1) | CN205300560U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105180880A (en) * | 2015-11-04 | 2015-12-23 | 吴江万工机电设备有限公司 | Conjugate cam theoretical profile testing device |
| CN109458915A (en) * | 2018-12-21 | 2019-03-12 | 焦作大学 | A kind of detecting tool and detection method of profile of plate cam |
-
2015
- 2015-11-04 CN CN201520871747.4U patent/CN205300560U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105180880A (en) * | 2015-11-04 | 2015-12-23 | 吴江万工机电设备有限公司 | Conjugate cam theoretical profile testing device |
| CN105180880B (en) * | 2015-11-04 | 2017-09-19 | 吴江万工机电设备有限公司 | A kind of conjugate cam pitch curve test device |
| CN109458915A (en) * | 2018-12-21 | 2019-03-12 | 焦作大学 | A kind of detecting tool and detection method of profile of plate cam |
| CN109458915B (en) * | 2018-12-21 | 2020-12-22 | 焦作大学 | Detection tool and detection method for profile of disc cam |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160608 Effective date of abandoning: 20170919 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20160608 Effective date of abandoning: 20170919 |