CN115876132A - Automatic detection device for termitomyces albuminosus bag pressing exhaust cam shaft - Google Patents
Automatic detection device for termitomyces albuminosus bag pressing exhaust cam shaft Download PDFInfo
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- CN115876132A CN115876132A CN202310107435.5A CN202310107435A CN115876132A CN 115876132 A CN115876132 A CN 115876132A CN 202310107435 A CN202310107435 A CN 202310107435A CN 115876132 A CN115876132 A CN 115876132A
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- 238000001514 detection method Methods 0.000 title claims abstract description 101
- 238000003825 pressing Methods 0.000 title claims abstract description 34
- 241001327916 Termitomyces albuminosus Species 0.000 title claims abstract description 22
- 230000009191 jumping Effects 0.000 claims abstract description 30
- 238000006073 displacement reaction Methods 0.000 claims abstract description 11
- 239000000523 sample Substances 0.000 claims abstract description 8
- 230000008859 change Effects 0.000 claims abstract description 5
- 230000006835 compression Effects 0.000 claims description 16
- 238000007906 compression Methods 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 7
- 230000000903 blocking effect Effects 0.000 claims description 6
- 238000013519 translation Methods 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000007246 mechanism Effects 0.000 description 9
- 238000004806 packaging method and process Methods 0.000 description 5
- 241000222680 Collybia Species 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000007405 data analysis Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 241000233866 Fungi Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008451 emotion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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Abstract
The invention relates to the technical field of automatic detection, and relates to an automatic detection device for a termitomyces albuminosus bag pressing exhaust camshaft. The servo motor drives the cam shaft to rotate, and the front side of the first detection roller presses the outer contour of the first cam; the contact point of the first cam profile surface and the first detection roller is changed continuously, the rotating radius of the contact point is changed continuously, the first detection frame translates back and forth along the first guide sleeve along with the change of the rotating radius of the contact point, the detection probe of the first sensor translates back and forth along with the first push surface, and the jumping size of each point on the first cam profile along the circumferential direction relative to the rotating axial lead of the cam shaft is collected and stored. The invention respectively detects the jumping amount data of three cams on the camshaft, analyzes the maximum jumping amount of the three groups of data and the angle displacement relation corresponding to the maximum jumping amount, judges whether the data is qualified or not, and detects the data which is inconvenient to detect by a conventional measuring scale and a gauge; avoid bringing the trouble for the adjustment debugging in later stage, improve production efficiency.
Description
Technical Field
The invention relates to the technical field of automatic detection, in particular to an automatic detection device for a termitomyces albuminosus bag pressing exhaust camshaft.
Background
The termitomyces albuminosus bag packaging equipment comprises a cam shaft and three sets of cam mechanisms, wherein the first cam mechanism drives the semi-ring barrel to overturn so that the termitomyces albuminosus bags slide down, the second cam mechanism enables the manipulator to tightly grasp the mouth of the termitomyces albuminosus bag and then press the mouth of the termitomyces albuminosus bag downwards to discharge air in the termitomyces albuminosus bag, the third cam mechanism enables the manipulator tightly grasping the mouth of the termitomyces albuminosus bag to lift upwards, and the cam shaft is provided with three cams which are a first cam, a second cam and a third cam respectively and respectively drive or trigger the first cam mechanism, the second cam mechanism and the third cam mechanism; the first cam, the second cam and the third cam are sequentially arranged on the cam shaft from right to left; a first shaft head is arranged between the first cam and the second cam; a second shaft head is arranged on the left side of the third cam; a driven gear is also arranged on the left side of the second shaft head; the camshaft can be manufactured integrally or can be manufactured into a plurality of split parts and then fixedly connected together. The first shaft head and the second shaft head are connected with other mechanisms through rotating bearings, and power is input through a driven gear to enable the first shaft head and the second shaft head to rotate.
The outer contour closed-loop curves of the first cam, the second cam and the third cam are respectively added with a convex part on the basis of a base circle, the base circle also reserves a circular arc surface of 180 degrees, the convex part occupies the other 180 degrees, the axis of the base circle is superposed with the rotating axis of the camshaft, the convex part is a smooth curve which is far away from the rotating axis of the camshaft relative to the base circle, and a farthest point which is far away from the rotating axis of the camshaft is arranged, and the distance between the farthest point and the base circle is a first maximum jumping amount.
The worker often uses a vernier caliper to detect the maximum jumping amount, one jaw is clamped at the midpoint of the base circular arc surface, and the other jaw is clamped at the farthest point of the boss to measure, however, the midpoint of the base circular arc surface and the farthest point of the boss which are visually measured are not necessarily accurate, and may deviate leftwards or rightwards, which results in deviation of the detection result.
The relative angle of the maximum radius is measured by clamping the cam shaft on the index head, making a static pointer pointing to the farthest point of the first cam, then rocking the index head to make the farthest point of the second cam rotate to align with the pointer, reading out how many total rocking angles are passed, and taking the angle as the included angle between the maximum radius of the first cam and the maximum radius of the second cam, and comparing the included angle with the preset range; the oscillating index head takes longer time, has lower detection efficiency, can not detect all products, only can carry out random inspection, and individual unqualified products are mixed into qualified products without being detected randomly and are assembled in the collybia albuminosa bag packaging equipment. There will also be measurement bias, accumulating into the measured angle, in determining the position of the farthest point.
The camshaft supplied by a supplier occasionally has a plurality of overlarge deviations, the deviations can not meet the requirements, but the deviations are inconvenient to detect by using a conventional measuring scale and a gauge, some unqualified camshafts can not be detected, and some unqualified camshafts can not be randomly detected and are regarded as qualified products. The camshaft is installed into the collybia albuminosa bag packaging equipment and then cannot be found out through debugging operation, so that the collybia albuminosa bag packaging equipment is poor in reliability, actions needing to be completed sometimes cannot be completed successfully, more troubles are brought to later-stage adjustment and debugging, the production efficiency is influenced, and the working efficiency is low.
The result of manual detection is easily influenced by subjective factors, emotion and proficiency, the detection result varies from person to person, the detection efficiency is low, and the labor intensity is high.
Disclosure of Invention
The invention provides an automatic detection device for pressing an exhaust camshaft by a termitomyces albuminosus bag, aiming at the defects in the prior art, the automatic detection device can respectively detect the jumping quantity data of three cams on the camshaft, can analyze the maximum jumping quantity of the three groups of data and the angle displacement relation corresponding to the maximum jumping quantity, and judges whether the data are qualified or not, and detects the data which are inconvenient to detect by a conventional measuring scale and a gauge; detect out the too big part of deviation before the assembly, avoid packing into collybia albuminosa fungus bag equipment for packing, avoid bringing the trouble for the adjustment debugging in later stage, improve production efficiency.
In order to achieve the purpose, the invention provides the following technical scheme:
an automatic detection device for pressing an exhaust cam shaft by a termitomyces albuminosus bag comprises a first detector and a rack; a first mounting hole is formed in the rack; the first detector comprises a first guide sleeve, a first guide rod, a first spring, a first detection frame, a first detection roller and a first sensor;
the first guide sleeve is fixedly connected with the rack; the first detection roller is connected with the front end of the first detection frame through a revolute pair; the rear end of the first detection frame is fixedly connected with the front end of the first guide rod; the first guide rod is connected with the first guide sleeve through a sliding pair, and the rear end of the first guide rod is provided with a large-diameter head to block the first guide sleeve and prevent the first guide rod from falling off from the first guide sleeve; the front end of the first spring presses the first detection frame, the rear end of the first spring presses the front end face of the first guide sleeve, and the front side of the first detection roller presses the outer contour of the first cam under the action of the first spring; the first detection frame is provided with a first backward push surface; the first sensor is fixedly arranged in the first mounting hole, and a detection probe of the first sensor extends forwards and abuts against the first push surface; the camshaft rotates, the first detection roller rolls on the outer contour surface of the first cam, the contact point of the outer contour surface of the first cam and the first detection roller is changed continuously, the rotating radius of the contact point is changed continuously, the first detection frame translates back and forth along the first guide sleeve along with the change of the rotating radius of the contact point, the detection probe of the first sensor translates back and forth along with the first pushing surface, the displacement of the back and forth movement is equal to the displacement of the forward and backward translation of the contact point, and the first sensor detects the jumping size of each point on the first cam contour along the circumferential direction relative to the rotating axial lead of the camshaft.
The invention also includes a second detector and a third detector;
the second detector comprises a second guide sleeve, a second detection roller, a second sensor and the like; the second guide sleeve is fixedly connected with the frame; the second sensor is fixedly arranged in the second mounting hole; the front side of the second detection roller presses the outer contour of the second cam; the second sensor detects the jumping size of each point on the second cam profile along the circumferential direction relative to the rotating shaft axis of the camshaft;
the third detector comprises a third guide sleeve, a third detection roller, a third sensor and the like; the third guide sleeve is fixedly connected with the frame; the third sensor is fixedly arranged in the third mounting hole; the front side of the third detection roller presses the outer contour of the third cam; the third sensor detects the jumping size of each point on the third cam profile along the circumferential direction relative to the rotating shaft axis of the cam shaft;
the second detector and the third detector have the same structure and the same installation direction as the first detector. The axial leads of the first detection roller, the second detection roller and the third detection roller are respectively positioned right behind the rotating axial lead of the camshaft.
The invention also includes a right idler assembly; the right carrier roller assembly comprises a right carrier roller frame and two right carrier rollers; the two right carrier rollers are respectively connected with the right carrier roller frame through revolute pairs; the right roller frame is fixedly connected with the rack; the rotating shaft center line of the right carrier roller is arranged along the left-right direction; the two right carrier rollers are arranged in front of the other carrier roller, the heights of the two right carrier rollers are equal, the width of a gap between the two right carrier rollers is smaller than the diameter of a first shaft head, the first shaft head is placed on the common area of the two right carrier rollers, the first shaft head rotates, and the two right carrier rollers passively rotate; and the left end and the right end of the right carrier roller are also provided with carrier roller blocking edges which can block the first shaft head to prevent the left and right movement.
The invention also includes a left idler assembly; the left carrier roller assembly comprises a left carrier roller frame and two left carrier rollers; the two left carrier rollers are respectively connected with the left carrier roller frame through revolute pairs; the left roller frame is fixedly connected with the rack; the rotating shaft center line of the left carrier roller is arranged along the left-right direction; the two left carrier rollers are arranged in front of each other and are equal in height, the width of a gap between the two left carrier rollers is smaller than the diameter of the second shaft head, the second shaft head is placed on the common area of the two left carrier rollers, the second shaft head rotates, and the two left carrier rollers passively rotate. Use right bearing roller subassembly and left bearing roller subassembly to hold the camshaft jointly, stability is better.
The invention also includes a drive assembly; the driving assembly comprises a servo motor and a driving gear; the shell of the servo motor is fixedly connected with the rack; the driving gear is fixedly connected with an output shaft of the servo motor; the driving gear is meshed with the driven gear, and the servo motor drives the cam shaft to rotate.
The invention also comprises a right compression roller assembly; the right compression roller assembly comprises a right compression frame, a right compression roller and a right heavy hammer; the rack is provided with a right hinge hole; the first end of the right pressing frame is fixedly connected with the right heavy hammer; the second end of the right pressing frame is provided with a right pressing frame hinge hole, and the right pressing frame hinge hole and the right hinge hole are connected through a hinge; the middle parts of the right pressing roller and the right pressing frame are connected through a rotating pair, and the rotating axis is arranged along the left and right direction. The right compression roller is pressed right above the first shaft head, so that the cam shaft is prevented from shaking.
The invention also comprises a left press roll component; the left compression roller assembly comprises a left compression frame, a left compression roller and a left heavy hammer; a left hinge hole is formed in the machine frame; the first end of the left pressing frame is fixedly connected with the left heavy hammer; the second end of the left pressing frame is hinged with the left hinge hole; the left compression roller is connected with the middle part of the left compression frame through a rotating pair, and the rotating axis is arranged along the left-right direction. The left compression roller is pressed right above the second shaft head to prevent the cam shaft from shaking.
The device also comprises a PLC controller, and the first sensor, the second sensor, the third sensor and the servo motor are electrically connected with the PLC controller respectively.
The invention also comprises a positioning shaft which is provided with a first positioning cylindrical surface, a second positioning cylindrical surface and a third positioning cylindrical surface; the first positioning cylindrical surface, the second positioning cylindrical surface and the third positioning cylindrical surface are sequentially arranged from right to left on the positioning shaft; a first positioning shaft head is arranged between the first positioning cylindrical surface and the second positioning cylindrical surface; a second positioning shaft head is also arranged on the left side of the third positioning cylindrical surface; the positioning shaft can be manufactured integrally or can be manufactured into a plurality of split parts and then fixedly connected together. The diameters of the first positioning cylindrical surface, the second positioning cylindrical surface, the third positioning cylindrical surface, the first positioning shaft head and the second positioning shaft head are respectively equal to the diameter of a base circle of the first cam, the diameter of a base circle of the second cam, the diameter of a base circle of the third cam, the diameter of the first shaft head and the diameter of the second shaft head, and the axial lines of the first positioning cylindrical surface, the second positioning cylindrical surface, the third positioning cylindrical surface, the first positioning shaft head and the second positioning shaft head are all overlapped; the first positioning shaft head and the second positioning shaft head are respectively placed above the pair of right supporting rollers and the pair of left supporting rollers, the first detection roller, the second detection roller and the third detection roller of the first detector, the second detector and the third detector are respectively pressed on the first positioning cylindrical surface, the second positioning cylindrical surface and the third positioning cylindrical surface, and at the moment, the detection numerical values of the first sensor, the second sensor and the third sensor are respectively defined as zero millimeters.
The beneficial effects of the invention are: the jumping amount data of the three cams on the camshaft can be respectively detected, the maximum jumping amount of the three groups of data and the angle displacement relation corresponding to the maximum jumping amount can be analyzed, whether the data are qualified or not is judged, and the data which are inconvenient to detect by a conventional measuring scale and a gauge are detected; parts with overlarge deviation are detected before assembly, so that the situation that termitomyces albuminosus bag packaging equipment is installed is avoided, the trouble for later adjustment and debugging is avoided, and the production efficiency is improved; the automatic and intelligent detection level is improved, the interference of subjective factors is avoided, and the detection result is objective and real; the detection efficiency is high, and the labor intensity is low; the detection efficiency is improved, then the detection can be carried out completely, and the unqualified camshaft is prevented from being mixed into qualified products.
In this way, not only three cams of the camshaft are measured, but also the profile of one cam, a plurality of cams, and the angular positional relationship therebetween.
Drawings
FIG. 1 is a front view of a camshaft;
FIG. 2 is a schematic three-dimensional structure of embodiment 1 of the present invention, in a state where no camshaft is mounted;
FIG. 3 is a schematic three-dimensional structure of embodiment 1 of the present invention, in a state where a camshaft is mounted;
fig. 4 is a front view of the first detector 21;
fig. 5 is a schematic three-dimensional structure of the right idler assembly, left idler assembly, drive assembly and frame combination;
fig. 6 is a schematic three-dimensional structure of a right idler assembly;
fig. 7 is a schematic three-dimensional structure of a left idler assembly;
FIG. 8 is a schematic three-dimensional view of a right nip roll assembly;
FIG. 9 is a schematic three-dimensional view of the left nip roll assembly;
FIG. 10 is a schematic three-dimensional structure of a drive assembly;
FIG. 11 is a graph of the data of the jumping amount of the outer contour of the three cams according to the rotation angle in a rectangular coordinate system;
FIG. 12 is a view in the direction E of FIG. 1, showing the positions of only three cams;
FIG. 13 is a front view of the positioning shaft.
In the figure:
1-a camshaft; 11-a first cam; 12-a second cam; 13-a third cam; 14-a first stub shaft; 15-second axle head; 16-a driven gear;
21-a first detector; 211-a first guide sleeve; 212-a first guide bar; 213-a first spring; 214-a first testing stand; 2141-a first push surface; 215-a first detection roller; 216 — first sensor; 22-a second detector; 221-a second guide sleeve; 225-a second detection roller; 226-a second sensor; 23-a third detector; 231-a third guide sleeve; 235-a third detection roller; 236-a third sensor;
3-a right idler assembly; 31-right carrier roller frame; 32-right idler; 321-carrier roller blocking edge;
4-a left idler assembly; 41-left carrier roller frame; 42-left carrier roller;
5-a drive assembly; 51-a servo motor; 52-a drive gear;
6-right press roll assembly; 61-right pressing frame; 62-a right press roll; 63-right weight dropper; 64-right pressing frame reaming;
7-a left press roll assembly; 71-left pressing frame; 72-left press roll; 73-left weight; 74-left pressure frame reaming;
8-a frame; 81-a first mounting hole; 82-a second mounting hole; 83-third mounting hole; 84-right reaming; 85-left reaming;
9-positioning the shaft; 91-a first positioning cylinder; 92-a second positioning cylinder; 93-a third positioning cylinder; 94-a first positioning stub shaft; 95-second positioning stub shaft.
Detailed Description
The technical solutions in the present invention will be clearly and completely described below with reference to the embodiments and the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Embodiment 1, an automatic detection apparatus for a termitomyces albuminosus bag pressing exhaust camshaft, as shown in fig. 2 to 10, comprises a first detector 21 and a frame 8; a first mounting hole 81 is formed in the frame 8; the first detector 21 includes a first guide sleeve 211, a first guide rod 212, a first spring 213, a first detecting frame 214, a first detecting roller 215, and a first sensor 216;
the first guide sleeve 211 is fixedly connected with the frame 8; as shown in fig. 4, the first detecting roller 215 is coupled to the front end of the first detecting frame 214 by a revolute pair; the rear end of the first detection frame 214 is fixedly connected with the front end of the first guide rod 212; the first guide rod 212 is connected with the first guide sleeve 211 through a sliding pair, and a large-diameter head is arranged at the rear end of the first guide rod 212 to block the first guide sleeve 211 and prevent the first guide rod 212 from falling out of the first guide sleeve 211; the front end of the first spring 213 presses the first detecting frame 214, the rear end of the first spring 213 presses the front end surface of the first guide sleeve 211, and the front side of the first detecting roller 215 presses the outer contour of the first cam 11 under the action of the first spring 213; the first detecting frame 214 is provided with a first push surface 2141 facing backwards; the first sensor 216 is fixedly installed in the first installation hole 81, and a detection probe of the first sensor 216 extends forward to abut against the first pushing surface 2141; when the camshaft rotates, the first detection roller 215 rolls on the outer contour surface of the first cam 11, the contact point between the outer contour surface of the first cam 11 and the first detection roller 215 is changed, the rotation radius of the contact point is changed, the first detection frame 214 translates back and forth along the first guide sleeve 211 along with the change of the rotation radius of the contact point, the detection probe of the first sensor 216 translates back and forth along the first pushing surface 2141, the displacement of the back and forth translation is equal to the displacement of the back and forth translation of the contact point, and the first sensor 216 detects the jumping size of each point on the contour of the first cam 11 along the circumferential direction relative to the rotation axis of the camshaft 1.
The present embodiment further includes a second detector 22 and a third detector 23;
as shown in fig. 2 and 3, the second detector 22 includes a second guide sleeve 221, a second detection roller 225, a second sensor 226, and the like; the second guide sleeve 221 is fixedly connected with the frame 8; the second sensor 226 is fixedly mounted in the second mounting hole 82; the front side of the second detection roller 225 presses the outer contour of the second cam 12; the second sensor 226 detects the runout size of each point in the circumferential direction on the profile of the second cam 12 with respect to the rotational axis of the camshaft 1;
the third detector 23 includes a third guide sleeve 231, a third detection roller 235, a third sensor 236, and the like; the third guide sleeve 231 is fixedly connected with the frame 8; the third sensor 236 is fixedly mounted in the third mounting hole 83; the front side of the third detection roller 235 presses the outer contour of the third cam 13; the third sensor 236 detects the runout size of each point in the circumferential direction on the profile of the third cam 13 with respect to the rotational axis of the camshaft 1;
the second detector 22 and the third detector 23 have the same structure and the same installation direction as the first detector 21. The axial centers of the first detecting roller 215, the second detecting roller 225, and the third detecting roller 235 are located right behind the rotational axial center of the camshaft 1, respectively.
The embodiment also comprises a right carrier roller assembly 3; as shown in fig. 5 and 6, the right idler assembly 3 includes a right idler frame 31 and two right idlers 32; the two right carrier rollers 32 are respectively connected with the right carrier roller frame 31 through revolute pairs; the right roller frame 31 is fixedly connected with the frame 8; the rotating shaft center line of the right carrier roller 32 is arranged along the left-right direction; one of the two right supporting rollers 32 is arranged in front of the other, the height is equal, the width of a gap between the two right supporting rollers 32 is smaller than the diameter of the first shaft head 14, the first shaft head 14 is placed on the common area of the two right supporting rollers 32, the first shaft head 14 rotates, and the two right supporting rollers 32 passively rotate; the left end and the right end of the right carrier roller 32 are further provided with carrier roller blocking edges 321 which can block the first shaft head 14 to prevent the left end and the right end from moving.
The embodiment also comprises a left carrier roller assembly 4; as shown in fig. 5 and 7, the left idler assembly 4 includes a left idler frame 41 and two left idlers 42; the two left carrier rollers 42 are respectively connected with the left carrier roller frame 41 through revolute pairs; the left roller frame 41 is fixedly connected with the frame 8; the rotating shaft center line of the left carrier roller 42 is arranged along the left-right direction; the two left supporting rollers 42 are arranged in front of each other and are equal in height, the width of a gap between the two left supporting rollers 42 is smaller than the diameter of the second shaft head 15, the second shaft head 15 is placed on the common area of the two left supporting rollers 42, the second shaft head 15 rotates, and the two left supporting rollers 42 passively rotate. The right carrier roller component 3 and the left carrier roller component 4 are used for supporting the camshaft 1 together, and the stability is good.
The present embodiment further comprises a drive assembly 5; as shown in fig. 5 and 10, the driving assembly 5 includes a servo motor 51 and a driving gear 52; the shell of the servo motor 51 is fixedly connected with the frame 8; the driving gear 52 is fixedly connected with an output shaft of the servo motor 51; the driving gear 52 is meshed with the driven gear 16, and the servo motor 51 drives the camshaft 1 to rotate.
The embodiment also comprises a right compression roller assembly 6; as shown in fig. 2, fig. 3 and fig. 8, the right roller assembly 6 includes a right roller frame 61, a right roller 62 and a right weight 63; a right hinge hole 84 is formed in the frame 8; the first end of the right pressing frame 61 is fixedly connected with a right heavy hammer 63; a second end of the right pressing frame 61 is provided with a right pressing frame hinge hole 64, and the right pressing frame hinge hole 64 and the right hinge hole 84 are connected through a hinge; the right press roll 62 is connected with the middle part of the right press frame 61 through a rotating pair, and the rotating axis is arranged along the left-right direction. The right pressing roller 62 is pressed right above the first spindle head 14 to prevent the camshaft 1 from shaking.
The embodiment also comprises a left press roll component 7; as shown in fig. 2, 3 and 9, the left pressing roller assembly 7 includes a left pressing frame 71, a left pressing roller 72 and a left weight 73; a left hinge hole 85 is formed in the machine frame 8; the first end of the left pressing frame 71 is fixedly connected with the left heavy hammer 73; the second end of the left pressing frame 71 is hinged with the left hinge hole 85; the left press roll 72 is connected with the middle part of the left press frame 71 through a rotating pair, and the rotating shaft center line is arranged along the left-right direction. The left press roller 72 is pressed right above the second spindle head 15, preventing the camshaft 1 from wobbling.
The system further comprises a PLC controller, and the first sensor 216, the second sensor 226, the third sensor 236 and the servo motor 51 are electrically connected with the PLC controller respectively.
The present embodiment further includes a positioning shaft 9, as shown in fig. 13, the positioning shaft 9 is provided with a first positioning cylindrical surface 91, a second positioning cylindrical surface 92, and a third positioning cylindrical surface 93; the first positioning cylindrical surface 91, the second positioning cylindrical surface 92 and the third positioning cylindrical surface 93 are sequentially arranged from right to left on the positioning shaft 9; a first positioning shaft head 94 is arranged between the first positioning cylindrical surface 91 and the second positioning cylindrical surface 92; a second positioning shaft head 95 is also arranged on the left side of the third positioning cylindrical surface 93; the positioning shaft 9 can be manufactured integrally or can be made into a plurality of separate bodies and then fixedly connected together. The diameters of the first positioning cylindrical surface 91, the second positioning cylindrical surface 92, the third positioning cylindrical surface 93, the first positioning shaft head 94 and the second positioning shaft head 95 are respectively equal to the diameter of the base circle of the first cam 11, the diameter of the base circle of the second cam 12, the diameter of the base circle of the third cam 13, the diameter of the first shaft head 14 and the diameter of the second shaft head 15; the first positioning spindle head 94 and the second positioning spindle head 95 are respectively placed above the pair of right support rollers 32 and the pair of left support rollers 42, the first detection roller 215, the second detection roller and the third detection roller of the first detector 21, the second detector 22 and the third detector 23 are respectively pressed on the first positioning cylindrical surface 91, the second positioning cylindrical surface 92 and the third positioning cylindrical surface 93, and the detection values of the first sensor 216, the second sensor 226 and the third sensor 236 are respectively defined as zero mm.
The working process of this embodiment is such.
1. The positioning shaft 9 with a clean surface is placed above the right carrier roller 32 and the left carrier roller 42, the first positioning shaft head 94 is in contact with the pair of right carrier rollers 32, the front shaft shoulder and the rear shaft shoulder of the first positioning shaft head 94 are respectively embedded between the carrier roller blocking edges 321, and the second positioning shaft head 95 is in contact with the pair of left carrier rollers 42; turning over the right press roll assembly 6 to press the right press roll 62 right above the first shaft head 14; turning over the left press roll assembly 7 to enable the left press roll 72 to be pressed right above the first shaft head 14; the first detecting roller 215, the second detecting roller 225, and the third detecting roller 235 are pressed against the first positioning cylindrical surface 91, the second positioning cylindrical surface 92, and the third positioning cylindrical surface 93, respectively, and at this time, the detection values of the first sensor 216, the second sensor 226, and the third sensor 236 are defined as zero, respectively. The positioning shaft 9 is removed.
2. The camshaft 1 with the clean surface is placed above the right carrier roller 32 and the left carrier roller 42, the first shaft head 14 is in contact with the pair of right carrier rollers 32, the front shaft shoulder and the rear shaft shoulder of the first shaft head 14 are respectively embedded between the carrier roller retaining edges 321, and the second shaft head 15 is in contact with the pair of left carrier rollers 42; meshing the driven gear 16 with the drive gear 52; the first detecting roller 215, the second detecting roller 225 and the third detecting roller 235 are respectively pressed on the base circular arc surfaces of the first cam 11, the second cam 12 and the third cam 13; turning over the right press roll assembly 6 to press the right press roll 62 right above the first shaft head 14; the left press roll assembly 7 is turned over so that the left press roll 72 is pressed directly over the first stub shaft 14, so that the first stub shaft 14 and the right idler 32 are in correct contact, and the second stub shaft 15 and the left idler 42 are in correct contact.
3. The first sensor 216, the second sensor 226, and the third sensor 236 start to detect three cams, respectively, and the PLC controller starts to collect three sets of data.
4. The servo motor 51 drives the camshaft 1 to rotate, and the right carrier roller 32, the left carrier roller 42, the right press roller 62 and the left press roller 72 respectively and passively rotate; the front side of the first detection roller 215 presses the outer contour of the first cam 11 by the first spring 213; the first detection roller 215 rolls on the outer contour surface of the first cam 11, the contact point between the outer contour surface of the first cam 11 and the first detection roller 215 is changed continuously, the rotation radius of the contact point is changed continuously, the first detection frame 214 translates back and forth along the first guide sleeve 211 along with the change of the rotation radius of the contact point, the detection probe of the first sensor 216 translates back and forth along the first pushing surface 2141, the displacement of the back and forth translation is equal to the displacement of the back and forth translation of the contact point, and the first sensor 216 collects and stores the jumping size of each point on the contour of the first cam 11 along the circumferential direction relative to the rotation axis of the camshaft 1.
Similarly, the second sensor 226 detects and stores the run-out size of each point in the circumferential direction on the profile of the second cam 12 with respect to the rotational axis of the camshaft 1, and the third sensor 236 detects and stores the run-out size of each point in the circumferential direction on the profile of the third cam 13 with respect to the rotational axis of the camshaft 1.
The camshaft 1 rotates in the counterclockwise direction when viewed from the right to the left, and the lobe of the third cam 13 is detected first, then the lobe of the second cam 12 is detected, and finally the lobe of the first cam 11 is detected.
5. Data analysis on maximum amount of bounce. As shown in fig. 12, the base circle diameter D1 of the first cam 11 is 64 mm, and the distance of the farthest point thereof from the base circle is the first maximum amount of bounce T1=23 mm; the base circle diameter D2 of the second cam 12 is 84 mm, and the distance of the farthest point thereof from the base circle is a second maximum runout amount T2=28 mm; the base circle diameter of the third cam 13 is equal to the base circle diameter of the second cam 12, D2=84 mm, and the distance of the farthest point from the base circle is the third maximum bounce amount T3=22 mm; the three farthest points and the vertical line of the rotating shaft axis of the camshaft are respectively three maximum radiuses; the tolerance requirement of the three maximum jumping amounts is that the upward or downward deviation is allowed to be 0.2 mm;
as shown in fig. 11, the curve C3 is a curve of the variation of the detected jump size of each point in the circumferential direction of the profile of the third cam 13 with respect to the rotational axis of the camshaft 1 with respect to the rotational angle, the curve C2 is a curve of the variation of the detected jump size of each point in the circumferential direction of the profile of the second cam 12 with respect to the rotational axis of the camshaft 1 with respect to the rotational angle, and the curve C1 is a curve of the detected jump size of each point in the circumferential direction of the profile of the first cam 11 with respect to the rotational axis of the camshaft 1 with respect to the rotational angle. Wherein, the points T3, T2 and T1 are the highest points of the three curves respectively and correspond to the maximum jumping amount from the rotating axis of the camshaft 1 on the profiles of the third cam 13, the second cam 12 and the first cam 11 respectively.
Respectively calculating the maximum values of three groups of bounce amount data of the third cam 13, the second cam 12 and the first cam 11, namely the actually measured three maximum bounce amounts T3, T2 and T1, and respectively judging whether the three bounce amount data fall into a preset allowable range; whether the maximum bounce amount T3 of the third cam 13 falls within the interval range [21.8, 22.2] in units of millimeters; whether the maximum amount of bounce T2 of the second cam 12 falls within the interval range [27.8, 28.2] in millimeters; whether the maximum bounce amount T1 of the first cam 11 falls within the interval range [22.8, 23.2] in units of millimeters; if one of the above maximum jumping amounts does not fall into the corresponding interval range, the camshaft is disqualified.
6. Data analysis on the angular difference. As shown in fig. 1 and 12, the maximum radius of the second cam 12 is 60 ° clockwise from the maximum radius of the first cam 11, allowing a deviation of 0.3 ° upward or downward, viewed from right to left; the maximum radius of the third cam 13 is 90 ° clockwise from the maximum radius of the first cam 11, allowing a deviation of 0.4 ° upwards or downwards; if the maximum amount of play or the relative angular deviation is too large to exceed the above-described range, the three cam mechanisms may not properly perform the corresponding functions.
Calculating the absolute value of the difference between the angles A2 and A1 corresponding to the maximum bounce amount T2 of the second cam 12 and the maximum bounce amount T1 of the first cam 11, namely calculating the absolute value A = | -A1-A2 |, judging whether the absolute value falls into a preset angle interval range [59.7 DEG, 60.3 DEG ], and if the absolute value A does not fall into the interval range, determining that the camshaft is unqualified.
Calculating the absolute value of the difference between the angles B3 and B1 corresponding to the maximum bounce amount T3 of the third cam 13 and the maximum bounce amount T1 of the first cam 11, namely calculating the absolute value of the angle difference B = | -B1-B3 |, judging whether the absolute value falls into a preset angle interval range [89.6 DEG, 90.4 DEG ], and if the absolute value of B does not fall into the interval range, determining that the camshaft is unqualified.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the present invention and its equivalent technology, it is intended that the present invention also include such modifications and variations.
Claims (10)
1. An automatic detection device for an exhaust camshaft pressed by a termitomyces albuminosus bag comprises a first detector (21) and a rack (8); the method is characterized in that: a first mounting hole (81) is formed in the rack (8); the first detector (21) comprises a first guide sleeve (211), a first guide rod (212), a first spring (213), a first detection frame (214), a first detection roller (215) and a first sensor (216);
the first guide sleeve (211) is fixedly connected with the frame (8); the first detection roller (215) is connected with the front end of the first detection frame (214) through a revolute pair; the rear end of the first detection frame (214) is fixedly connected with the front end of the first guide rod (212); the first guide rod (212) is connected with the first guide sleeve (211) through a moving pair; the front end of the first spring (213) presses the first detection frame (214), the rear end of the first spring (213) presses the front end surface of the first guide sleeve (211), and the front side of the first detection roller (215) presses the outer contour of the first cam (11) under the action of the first spring (213); a first push surface (2141) facing backwards is arranged on the first detection frame (214); the first sensor (216) is fixedly arranged in the first mounting hole (81), and a detection probe of the first sensor (216) extends forwards and abuts against the first push surface (2141); further comprising a second detector (22) and a third detector (23); the second detector (22) comprises a second guide sleeve (221), a second detection roller (225) and a second sensor (226); the second guide sleeve (221) is fixedly connected with the frame (8); the second sensor (226) is fixedly arranged in the second mounting hole (82); the front side of the second detection roller (225) presses the outer contour of the second cam (12); the third detector (23) comprises a third guide sleeve (231), a third detection roller (235) and a third sensor (236); the third guide sleeve (231) is fixedly connected with the frame (8); the third sensor (236) is fixedly arranged in the third mounting hole (83); the front side of the third detection roller (235) presses the outer contour of the third cam (13); the second detector (22) and the third detector (23) have the same structure and the same installation direction as the first detector (21); the axes of the first detection roller (215), the second detection roller (225) and the third detection roller (235) are respectively positioned right behind the rotating axis of the camshaft (1).
2. The apparatus of claim 1, wherein the means for automatically detecting when an exhaust camshaft is pressed by an termitomyces albuminosus bag comprises: the device also comprises a right carrier roller assembly (3); the right carrier roller assembly (3) comprises a right carrier roller frame (31) and two right carrier rollers (32); the two right carrier rollers (32) are respectively connected with a right carrier roller frame (31) through revolute pairs; the right roller frame (31) is fixedly connected with the rack (8); the rotating shaft center line of the right carrier roller (32) is arranged along the left-right direction; the two right carrier rollers (32) are arranged in front of each other, the heights of the two right carrier rollers are equal, the width of a gap between the two right carrier rollers (32) is smaller than the diameter of the first shaft head (14), and the first shaft head (14) is placed on the common area of the two right carrier rollers (32); and carrier roller blocking edges (321) are further arranged at the left end and the right end of the right carrier roller (32).
3. The apparatus of claim 2, wherein the means for automatically detecting when an exhaust camshaft is pressed by an termitomyces albuminosus bag comprises: also comprises a drive assembly (5); the driving assembly (5) comprises a servo motor (51) and a driving gear (52); the shell of the servo motor (51) is fixedly connected with the rack (8); the driving gear (52) is fixedly connected with an output shaft of the servo motor (51); the driving gear (52) is meshed with the driven gear (16), and the servo motor (51) drives the camshaft (1) to rotate.
4. The apparatus of claim 3, wherein the means for automatically detecting when an exhaust camshaft is pressed by a termitomyces albuminosus bag comprises: the device also comprises a right compression roller assembly (6); the right compression roller assembly (6) comprises a right compression frame (61), a right compression roller (62) and a right heavy hammer (63); a right hinge hole (84) is formed in the frame (8); the first end of the right pressing frame (61) is fixedly connected with a right heavy hammer (63); a right pressing frame hinge hole (64) is formed in the second end of the right pressing frame (61), and the right pressing frame hinge hole (64) is connected with the right hinge hole (84) through a hinge; the middle parts of the right press roll (62) and the right press frame (61) are connected through a rotating pair, and the rotating axis is arranged along the left and right direction; the right pressing roller (62) is pressed right above the first shaft head (14).
5. The apparatus of claim 4, wherein the means for automatically detecting when an exhaust camshaft is pressed by a termitomyces albuminosus bag comprises: the device also comprises a PLC controller, wherein the first sensor (216), the second sensor (226), the third sensor (236) and the servo motor (51) are electrically connected with the PLC controller respectively.
6. The apparatus of claim 5, wherein the means for automatically detecting when an exhaust camshaft is pressed by an termitomyces albuminosus bag comprises: the device is characterized by also comprising a positioning shaft (9), wherein the positioning shaft (9) is provided with a first positioning cylindrical surface (91), a second positioning cylindrical surface (92) and a third positioning cylindrical surface (93); the first positioning cylindrical surface (91), the second positioning cylindrical surface (92) and the third positioning cylindrical surface (93) are sequentially arranged from right to left on the positioning shaft (9); a first positioning shaft head (94) is arranged between the first positioning cylindrical surface (91) and the second positioning cylindrical surface (92); a second positioning shaft head (95) is also arranged on the left side of the third positioning cylindrical surface (93); the diameters of the first positioning cylindrical surface (91), the second positioning cylindrical surface (92), the third positioning cylindrical surface (93), the first positioning shaft head (94) and the second positioning shaft head (95) are respectively equal to the diameter of a base circle of the first cam (11), the diameter of a base circle of the second cam (12), the diameter of a base circle of the third cam (13), the diameter of the first shaft head (14) and the diameter of the second shaft head (15), and the axial lines of the first positioning cylindrical surface (91), the second positioning cylindrical surface (92), the third positioning cylindrical surface (93), the first positioning shaft head (94) and the second positioning shaft head (95) are all coincided; a first positioning shaft head (94) is placed above a pair of right supporting rollers (32), a first detection roller (215), a second detection roller and a third detection roller of a first detector (21), a second detector (22) and a third detector (23) are respectively pressed on a first positioning cylindrical surface (91), a second positioning cylindrical surface (92) and a third positioning cylindrical surface (93), and detection values of a first sensor (216), a second sensor (226) and a third sensor (236) are respectively defined to be zero millimeters.
7. An automatic detection method for pressing an exhaust camshaft by a termitomyces albuminosus bag is characterized in that: the camshaft (1) is placed above the right carrier rollers (32), the first shaft head (14) is in contact with the pair of right carrier rollers (32), and the front shaft shoulder and the rear shaft shoulder of the first shaft head (14) are respectively embedded between the carrier roller blocking edges (321); the driven gear (16) is meshed with the driving gear (52); the first detection roller (215), the second detection roller (225) and the third detection roller (235) are respectively pressed on the base circular arc surfaces of the first cam (11), the second cam (12) and the third cam (13); turning over the right press roll assembly (6) to enable the right press roll (62) to be pressed right above the first shaft head (14);
the first sensor (216), the second sensor (226) and the third sensor (236) respectively detect three cams, and the PLC acquires three groups of data;
the servo motor (51) drives the camshaft (1) to rotate; the front side of the first detection roller (215) is pressed against the outer contour of the first cam (11) under the action of a first spring (213); the first detection roller (215) rolls on the outer contour surface of the first cam (11), the contact point of the outer contour surface of the first cam (11) and the first detection roller (215) is changed continuously, the rotating radius of the contact point is changed continuously, the first detection frame (214) translates back and forth along the first guide sleeve (211) along with the change of the rotating radius of the contact point, the detection probe of the first sensor (216) translates back and forth along the first push surface (2141), the displacement of the back and forth movement is equal to the displacement of the back and forth translation of the contact point, and the first sensor (216) acquires and stores the jumping size data of each point on the contour of the first cam (11) along the circumferential direction relative to the rotating axis of the camshaft (1);
similarly, the second sensor (226) detects and stores data of the run-out size of each point in the circumferential direction on the profile of the second cam (12) with respect to the rotational axis of the camshaft (1), and the third sensor (236) detects and stores data of the run-out size of each point in the circumferential direction on the profile of the third cam (13) with respect to the rotational axis of the camshaft (1).
8. The method of claim 7, wherein the method comprises the following steps: respectively calculating the maximum values of three groups of jumping amount data of the third cam (13), the second cam (12) and the first cam (11), namely three actually measured maximum jumping amounts T3, T2 and T1, and respectively judging whether the three actually measured maximum jumping amounts fall into a preset allowable range; whether the maximum runout T3 of the third cam (13) falls within an interval range [21.8, 22.2] in mm; whether the maximum amount of bounce T2 of the second cam (12) falls within an interval range [27.8, 28.2] in millimeters; whether the maximum bounce momentum T1 of the first cam (11) falls within an interval range [22.8, 23.2] in millimeters; and if one of the maximum jumping quantities does not fall into the corresponding interval range, the camshaft is unqualified.
9. The method of claim 8, wherein the method comprises the steps of: calculating the absolute value of the difference between the angles A2 and A1 corresponding to the maximum jumping amount T2 of the second cam (12) and the maximum jumping amount T1 of the first cam (11), namely calculating the absolute value A = | -A1-A2 |, judging whether the absolute value falls into a preset angle interval range [59.7 DEG, 60.3 DEG ], and if the absolute value A does not fall into the interval range, determining that the camshaft is unqualified.
10. The method for automatically detecting that an exhaust camshaft is pressed by a termitomyces albuminosus bag according to claim 8 or 9, wherein: and calculating the absolute value of the difference between the angles B3 and B1 corresponding to the maximum jumping amount T3 of the third cam (13) and the maximum jumping amount T1 of the first cam (11), namely calculating the absolute value B = | -B1-B3 |, judging whether the absolute value falls into a preset angle interval range [89.6 DEG, 90.4 DEG ], and if B does not fall into the interval range, determining that the camshaft is unqualified.
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| CN116638256A (en) * | 2023-07-16 | 2023-08-25 | 江苏亚太特种铸钢厂有限公司 | Machining process for stabilizing roller with mechanical safety protection structure |
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