CN214184683U - Rapid shape correction and detection device for long and thin step shaft part - Google Patents
Rapid shape correction and detection device for long and thin step shaft part Download PDFInfo
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- CN214184683U CN214184683U CN202022064718.0U CN202022064718U CN214184683U CN 214184683 U CN214184683 U CN 214184683U CN 202022064718 U CN202022064718 U CN 202022064718U CN 214184683 U CN214184683 U CN 214184683U
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- guide sleeve
- reducing guide
- shaft part
- excircle
- inner hole
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Abstract
The utility model relates to the field of machining, especially, relate to a quick school shape and detection device for elongated step axle part. A first step excircle (41) and a second step excircle (43) are respectively arranged at two ends of the elongated step shaft part (4), the middle section comprises a section to be corrected, and the section to be corrected is provided with a large excircle (42); the device comprises a first reducing guide sleeve (1), a second reducing guide sleeve (2) and a three-dimensional cushion block (3); the first reducing guide sleeve (1) and the second reducing guide sleeve (2) are respectively sleeved on a first step excircle (41) and a second step excircle (43) at two ends of the long and thin step shaft part (4), and the three-dimensional cushion block (3) is sleeved on a section to be corrected of the long and thin step shaft part (4). The device has the advantages of simple structure and convenient use, solves the problems of repetition of the shape correction process of the long and thin step shaft and difficulty in detection of the straightness, stabilizes the processing quality and improves the flow efficiency.
Description
Technical Field
The utility model relates to the field of machining, especially, relate to a quick school shape and detection device for elongated step axle part.
Background
In the processing of slender shafts, especially when the length-diameter ratio of the slender shaft is more than 100: 1, due to serious part deformation caused by cutting force and internal stress, the straightness of the part needs to be ensured through manual shape correction.
In the shape correction process of the long and thin step shaft, the diameters of the outer circles of the steps on the step shaft are different, and the outer circles of the steps cannot be located on the same plane when the part is horizontally placed in a free state, so that the deformation position of the part cannot be directly judged. Generally, a cushion block is needed to be used for heightening the thin rib part of the slender step shaft part, a deformation high point is observed visually and marked, the deformation high point is knocked by pressure to correct the shape, the cushion block is observed for many times and knocked until the thin rib part heightened by the cushion block is aligned, the cushion block is continuously moved, and the next thin rib is heightened until the correction of the whole slender step shaft is completed. When the length of the thin rib of the long and thin step shaft is larger than 200mm and batch shape correction and detection are needed, repeated observation, alignment and adjustment are needed for several times, the challenge to an operator is huge, and the shape correction quality depends on the experience of the operator seriously.
Meanwhile, due to the fact that the rigidity of the long and thin step shaft is poor, straightness cannot be measured through a contact method after shape correction, only parts can roll on the detection platform along the circumferential direction, the change situation of the vertical distance between the thin rib part and the detection platform is observed visually to judge whether the shape correction result meets the requirement, detection standards are difficult to unify, and the accuracy of the detection result needs to be improved urgently.
SUMMERY OF THE UTILITY MODEL
The utility model aims at: the utility model discloses according to the school shape demand of long and thin step axle part, designed a quick school shape and detection device for long and thin step axle part, the device simple structure, convenient to use can fix a position the deformation high point of part fast to behind the school shape, can accurately detect whether the part straightness accuracy meets the demands, solved the problem of relapse and detection of long and thin step axle school shape process, stabilized processingquality, promoted flow efficiency.
The technical scheme of the utility model is that: a rapid shape correction and detection device for a long and thin step shaft part is characterized in that a first step excircle 41 and a second step excircle 43 are respectively arranged at two ends of the long and thin step shaft part 4, the middle section comprises a section to be corrected, and the section to be corrected is provided with a large excircle 42; the device comprises a first reducing guide sleeve 1, a second reducing guide sleeve 2 and a three-dimensional cushion block 3; the first reducing guide sleeve 1 and the second reducing guide sleeve 2 are respectively sleeved on a first step excircle 41 and a second step excircle 43 at two ends of the long and thin step shaft part 4, and the three-dimensional cushion block 3 is sleeved on a section to be corrected of the long and thin step shaft part 4;
the center of the first reducing guide sleeve 1 is provided with two-stage step inner holes which are respectively marked as a first-stage step inner hole 11 of the first reducing guide sleeve and a second-stage step inner hole 12 of the first reducing guide sleeve, the first-stage step inner hole 11 of the first reducing guide sleeve is matched with a first-position step excircle 41 on the slender step shaft part 4, and the diameter of the first-stage step inner hole 12 of the first reducing guide sleeve is smaller than that of the first-stage step inner hole 11 of the first reducing guide sleeve, so that the axial position of the first reducing guide sleeve 1 is limited; the diameter of the excircle of the first reducing guide sleeve 1 is the same as the diameter of the large excircle 42 on the long and thin step shaft part 4;
the center of the second reducing guide sleeve 2 is provided with two-stage step inner holes which are respectively marked as a first-stage step inner hole 21 of the second reducing guide sleeve and a second-stage step inner hole 22 of the second reducing guide sleeve, the first-stage step inner hole 21 of the second reducing guide sleeve is matched with a second-position step excircle 43 on the slender step shaft part 4, and the diameter of the second-stage step inner hole 22 of the second reducing guide sleeve is smaller than that of the first-stage step inner hole 21 of the second reducing guide sleeve, so that the axial position of the first reducing guide sleeve 1 is limited; the diameter of the excircle of the second reducing guide sleeve 2 is the same as the diameter of the large excircle 42 on the long and thin step shaft part 4;
the three-dimensional cushion block 3 is of a semi-cylindrical structure, a semi-cylindrical through hole is formed in the center of the three-dimensional cushion block along the axial direction, the semi-cylindrical through hole is matched with the excircle of the section to be corrected of the slender step shaft part 4, and the diameter of the excircle of the three-dimensional cushion block 3 is the same as that of the large excircle 42 of the slender step shaft part 4; the three-dimensional cushion blocks 3 need to be used in pairs to realize the shape correction and the inspection of the section to be corrected in a sectional manner.
In a possible embodiment, at least one of the first stepped outer circle 41 and the second stepped outer circle 43 at both ends of the elongated stepped shaft part 4 is further extended with an external thread section along the axial direction; the diameter of the external thread section is matched with the first reducing guide sleeve second step inner hole 12 of the first reducing guide sleeve 1 or the second reducing guide sleeve second step inner hole 22 of the second reducing guide sleeve 2.
In one possible embodiment, the first step inner hole 11 of the first reducing guide sleeve 1 is in transition connection with the second step inner hole 12 of the first reducing guide sleeve through a first chamfer 13; a first-stage step inner hole 21 of the second reducing guide sleeve 2 is in transition connection with a second-stage step inner hole 22 of the second reducing guide sleeve through a second chamfer 23; by arranging the chamfer, a first step excircle 41 and a second step excircle 43 of the slender step shaft part 4 can be guided to be respectively installed in the first step inner hole 11 of the first reducing guide sleeve 1 and the second step inner hole 21 of the second reducing guide sleeve 2 in a sliding fit manner.
In a possible embodiment, the length of the first step inner hole 11 of the first reducing guide sleeve 1 is determined according to the length of the first step outer circle 41 of the long and thin step shaft part 4, the range is 1/2-2/3 of the length of the first step outer circle 41, so that inaccurate matching between the first reducing guide sleeve 1 and the first step outer circle 41 of the long and thin step shaft part 4 is prevented when the length of the first step inner hole 11 of the first reducing guide sleeve is too short, and meanwhile, the phenomenon that the length of the first reducing guide sleeve 1 exceeds the first step outer circle 41 to influence an operator to observe the deformation condition of the outer circle to be corrected when the length of the first step inner hole 11 of the first reducing guide sleeve is too long is prevented.
In a possible embodiment, the length of the first step inner hole 21 of the second reducing guide sleeve 2 is determined according to the length of the second step outer circle 43 of the slender step shaft part 4, and the range is 1/2-2/3 of the length of the second step outer circle 43, so that inaccurate matching between the second reducing guide sleeve 2 and the second step outer circle 43 of the slender step shaft part 4 is prevented when the length of the first step inner hole 21 of the second reducing guide sleeve is too short, and meanwhile, the phenomenon that the length of the second reducing guide sleeve 2 exceeds the second step outer circle 43 to influence an operator to observe the deformation condition of the excircle to be corrected when the length of the first step inner hole 21 of the second reducing guide sleeve is too long is prevented.
In one possible embodiment, the length of the solid cushion block 3 is set according to the diameter of the outer circle of the solid cushion block 3, and the length-diameter ratio range is 1: 4-1: 6 or more; the deformation condition that an operator observes an excircle to be corrected is prevented from being influenced due to the fact that the three-dimensional cushion block 3 is too short in length, unstable in positioning and inconvenient to operate and use.
When the diameters of the first step excircle 41 and the second step excircle 43 at the two ends of the long and thin step shaft part 4 are the same, the first reducing guide sleeve 1 and the second reducing guide sleeve 2 are completely the same; meanwhile, according to the characteristics of the slender stepped shaft part to be corrected, the first reducing guide sleeve 1 and the second reducing guide sleeve 2 can be used simultaneously, and the first reducing guide sleeve 1 or the second reducing guide sleeve 2 can also be used only.
Use the utility model discloses an effect does: 1, aiming at the shape correction processing of the long and thin step shaft, the problem that the deformation high point is difficult to observe due to the fact that the outer diameters of parts are inconsistent is solved by using the reducing guide sleeve, and repeated adjustment is not needed in the shape correction process; 2, the deformation high point of the excircle to be corrected can be found out visually and accurately by utilizing the three-dimensional cushion block, and the excircle to be corrected is corrected directly without marking for many times in the process of correction; 3, the multi-step shaft part is converted into the single-diameter step shaft by utilizing the reducing guide sleeve and the three-dimensional cushion block, the straightness can be checked by directly using the feeler gauge, and the result is accurate and reliable. The relevant size in the device is designed to be adaptive size, can be used for shape correction processing of all step shaft parts, and has wide application range.
Drawings
FIG. 1: the structure of the utility model is schematically illustrated
FIG. 2: the utility model discloses well first reducing guide pin bushing 1 structure picture
FIG. 3: the utility model discloses well second reducing guide pin bushing 2 structure picture
FIG. 4: the utility model discloses well somatic cushion 3 structures picture
FIG. 5: the embodiment of the utility model provides a 4 schematic structure views of long and thin step axle parts
Wherein: 1-a first reducing guide sleeve, 11-a first-stage step inner hole of the first reducing guide sleeve, 12-a second-stage step inner hole of the first reducing guide sleeve, and 13-a first chamfer; 2-a second reducing guide sleeve, 21-a first-stage step inner hole of the second reducing guide sleeve, 22-a second-stage step inner hole of the second reducing guide sleeve, and 23-a second chamfer; 3, a three-dimensional cushion block; 4-slender step shaft part, 41-first step excircle, 42-big excircle, 43-second step excircle, 44-external screw thread.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the present invention, and the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; there may be communication between the interiors of the two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 5, a first step outer circle 41 and a second step outer circle 43 are respectively arranged at two ends of the elongated step shaft part 4, the middle section comprises a section to be corrected, and the section to be corrected is provided with a large outer circle 42; an external thread section 44 extends from one end of the second step excircle 43 along the axial direction;
as shown in fig. 1-4, a rapid shape correction and detection device for a long and thin step shaft part comprises a first reducing guide sleeve 1, a second reducing guide sleeve 2 and a three-dimensional cushion block 3; the first reducing guide sleeve 1 and the second reducing guide sleeve 2 are respectively sleeved on a first step excircle 41 and a second step excircle 43 at two ends of the long and thin step shaft part 4, and the three-dimensional cushion block 3 is sleeved on a section to be corrected of the long and thin step shaft part 4;
the center of the first reducing guide sleeve 1 is provided with two-stage step inner holes which are respectively marked as a first-stage step inner hole 11 of the first reducing guide sleeve and a second-stage step inner hole 12 of the first reducing guide sleeve, the first-stage step inner hole 11 of the first reducing guide sleeve is matched with a first-position step excircle 41 on the slender step shaft part 4, and the diameter of the first-stage step inner hole 12 of the first reducing guide sleeve is smaller than that of the first-stage step inner hole 11 of the first reducing guide sleeve, so that the axial position of the first reducing guide sleeve 1 is limited; the diameter of the excircle of the first reducing guide sleeve 1 is the same as the diameter of the large excircle 42 on the long and thin step shaft part 4;
the center of the second reducing guide sleeve 2 is provided with two-stage step inner holes which are respectively marked as a first-stage step inner hole 21 of the second reducing guide sleeve and a second-stage step inner hole 22 of the second reducing guide sleeve, the first-stage step inner hole 21 of the second reducing guide sleeve is matched with a second-position step excircle 43 on the slender step shaft part 4, and the diameter of the second-stage step inner hole 22 of the second reducing guide sleeve is smaller than that of the first-stage step inner hole 21 of the second reducing guide sleeve, so that the axial position of the first reducing guide sleeve 1 is limited; the diameter of the excircle of the second reducing guide sleeve 2 is the same as the diameter of the large excircle 42 on the long and thin step shaft part 4;
the three-dimensional cushion block 3 is of a semi-cylindrical structure, a semi-cylindrical through hole is formed in the center of the three-dimensional cushion block along the axial direction, the semi-cylindrical through hole is matched with the excircle of the section to be corrected of the slender step shaft part 4, and the diameter of the excircle of the three-dimensional cushion block 3 is the same as that of the large excircle 42 of the slender step shaft part 4; the three-dimensional cushion blocks 3 need to be used in pairs to realize the shape correction and the inspection of the section to be corrected in a segmented manner;
the diameter of the external thread section 44 is matched with the second-stage step inner hole 22 of the second reducing guide sleeve 2;
a first step inner hole 11 of a first reducing guide sleeve of the first reducing guide sleeve 1 is in transition connection with a second step inner hole 12 of the first reducing guide sleeve through a first chamfer 13; a first-stage step inner hole 21 of the second reducing guide sleeve 2 is in transition connection with a second-stage step inner hole 22 of the second reducing guide sleeve through a second chamfer 23;
the length of a first step inner hole 11 of the first reducing guide sleeve 1 is determined according to the length of a first step outer circle 41 of the long and thin step shaft part 4, and the length is 1/2 of the length of the first step outer circle 41;
the length of a first-stage step inner hole 21 of the second reducing guide sleeve 2 is determined according to the length of a second-position step outer circle 43 of the slender step shaft part 4, and the length is 1/2 of the length of the second-position step outer circle 43;
the length of the three-dimensional cushion block 3 is set according to the diameter of the outer circle of the three-dimensional cushion block 3, and the length-diameter ratio is 1: 4.
Examples
The following takes the shaping process of a certain type of elongated stepped shaft component as an example with reference to fig. 1-5. The method comprises the following specific steps:
1. the first step excircle 41 of the slender step shaft part 4 is arranged in a first step inner hole 11 of the first reducing guide sleeve 1 in a sliding fit mode, so that the end face of the first step excircle 41 is attached to the first step inner hole 11 of the first reducing guide sleeve, and axial displacement of the first reducing guide sleeve 1 is limited;
2. the external thread section 44 of the slender step shaft part 4 is arranged in a second step inner hole 22 of the second reducing guide sleeve 2 in a sliding fit mode, and the second step excircle 43 is arranged in a first step inner hole 21 of the second reducing guide sleeve 2 in a sliding fit mode along a second chamfer 23;
3. the diameters of the steps of the slender step shaft part 4 except the excircle to be corrected are the same by using the first reducing guide sleeve 1 and the second reducing guide sleeve 2;
4. rotating a slender step shaft part 4 with a first reducing guide sleeve 1 and a second reducing guide sleeve 2 arranged at two ends on a shape correction platform for 360 degrees along the circumferential direction, and observing the deformation position of an excircle to be corrected;
5. the three-dimensional cushion blocks 3 are respectively arranged on two sides of the deformation high point, so that the excircle to be corrected is arranged in the semi-cylindrical inner hole of the three-dimensional cushion block 3;
6. the deformation high point is knocked by pressure to correct the shape;
7. after the shape is corrected, the rotation is continued for 360 degrees along the circumferential direction, so that the slender step shaft part 4 rotates in the semi-cylindrical inner holes of the two three-dimensional cushion blocks 3, and the deformation condition of the corrected part is observed;
8. when one shaping step is finished, continuing to repeat the step 4-7;
9. after the to-be-corrected excircle of the long and thin stepped shaft part 4 is corrected, the clearance gauge is used for checking the distance between the outer cylindrical surfaces of the first reducing guide sleeve 1 and the second reducing guide sleeve 2 and the correction platform, the clearance gauge is used for checking the distance between the outer cylindrical surfaces of the two three-dimensional cushion blocks 3 and the correction platform, and the distance is the straightness of the long and thin stepped shaft part 4;
10. and (4) repeating the steps 4-9 until the straightness of the long and thin step shaft part 4 meets the requirement.
When the part structure changes, can use this device split, use one or several first reducing guide pin bushing 1, one or several second reducing guide pin bushing 2, mated three-dimensional cushion 3.
The device solves the problems of repeated observation, marking and adjustment in the shape correction of the long and thin step shaft, and solves the problem that the shape correction cannot be accurately detected. And the rapid shape correction and detection can be realized.
The above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equally replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application, and are intended to be included within the scope of the present application.
Claims (6)
1. The quick shape correction and detection device for the long and thin stepped shaft part is characterized in that a first stepped excircle (41) and a second stepped excircle (43) are respectively arranged at two ends of the long and thin stepped shaft part (4), the middle section comprises a section to be corrected, and the section to be corrected is provided with a large excircle (42); the device comprises a first reducing guide sleeve (1), a second reducing guide sleeve (2) and a three-dimensional cushion block (3); the first reducing guide sleeve (1) and the second reducing guide sleeve (2) are respectively sleeved on a first step excircle (41) and a second step excircle (43) at two ends of the long and thin step shaft part (4), and the three-dimensional cushion block (3) is sleeved on a section to be corrected of the long and thin step shaft part (4);
two-stage step inner holes are formed in the center of the first reducing guide sleeve (1) and are respectively marked as a first-stage step inner hole (11) of the first reducing guide sleeve and a second-stage step inner hole (12) of the first reducing guide sleeve, the first-stage step inner hole (11) of the first reducing guide sleeve is matched with a first-position step excircle (41) on the long and thin step shaft part (4), and the diameter of the first-stage step inner hole (12) of the first reducing guide sleeve is smaller than that of the first-stage step inner hole (11) of the first reducing guide sleeve, so that the axial position of the first reducing guide sleeve (1) is limited; the diameter of the excircle of the first reducing guide sleeve (1) is the same as that of the large excircle (42) on the slender step shaft part (4);
two-stage step inner holes are formed in the center of the second reducing guide sleeve (2) and are respectively marked as a first-stage step inner hole (21) of the second reducing guide sleeve and a second-stage step inner hole (22) of the second reducing guide sleeve, the first-stage step inner hole (21) of the second reducing guide sleeve is matched with a second-position step excircle (43) on the slender step shaft part (4), and the diameter of the second-stage step inner hole (22) of the second reducing guide sleeve is smaller than that of the first-stage step inner hole (21) of the second reducing guide sleeve, so that the axial position of the first reducing guide sleeve (1) is limited; the diameter of the excircle of the second reducing guide sleeve (2) is the same as that of the large excircle (42) on the long and thin step shaft part (4);
the three-dimensional cushion block (3) is of a semi-cylindrical structure, a semi-cylindrical through hole is formed in the center of the three-dimensional cushion block along the axial direction, the semi-cylindrical through hole is matched with the excircle of the section to be corrected of the slender step shaft part (4), and the diameter of the excircle of the three-dimensional cushion block (3) is the same as that of the large excircle (42) of the slender step shaft part (4); the three-dimensional cushion blocks (3) need to be used in pairs.
2. The rapid sizing and detecting device for the elongated stepped shaft part according to claim 1, wherein at least one of the first stepped outer circle (41) and the second stepped outer circle (43) at both ends of the elongated stepped shaft part (4) is further extended with an external thread section along the axial direction; the diameter of the external thread section is matched with a first reducing guide sleeve second-stage step inner hole (12) of the first reducing guide sleeve (1) or a second reducing guide sleeve second-stage step inner hole (22) of the second reducing guide sleeve (2).
3. The rapid sizing and detection device for the elongated step shaft part as claimed in claim 2, wherein the first step inner hole (11) of the first reducing guide sleeve (1) is transitionally connected with the second step inner hole (12) of the first reducing guide sleeve through a first chamfer (13); and a first step inner hole (21) of a second reducing guide sleeve of the second reducing guide sleeve (2) is in transitional connection with a second step inner hole (22) of the second reducing guide sleeve through a second chamfer (23).
4. The rapid sizing and inspection device for elongated step shaft parts according to claim 1, wherein the length of the first step inner bore (11) of the first reducing guide sleeve (1) is determined according to the length of the first step outer circle (41) of the elongated step shaft part (4) in the range of 1/2-2/3 of the length of the first step outer circle (41).
5. The rapid sizing and inspection device for elongated stepped shaft parts according to claim 1, wherein the length of the second stepped inner bore (21) of the second reducer guide (2) is determined according to the length of the second stepped outer circle (43) of the elongated stepped shaft part (4) in the range of 1/2-2/3 of the length of the second stepped outer circle (43).
6. The rapid sizing and detection device for the elongated stepped shaft part according to claim 1, wherein the length of the solid block (3) is set according to the diameter of the outer circle of the solid block (3), and the length-diameter ratio ranges from 1: 4-1: 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022064718.0U CN214184683U (en) | 2020-09-18 | 2020-09-18 | Rapid shape correction and detection device for long and thin step shaft part |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022064718.0U CN214184683U (en) | 2020-09-18 | 2020-09-18 | Rapid shape correction and detection device for long and thin step shaft part |
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| CN214184683U true CN214184683U (en) | 2021-09-14 |
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| CN202022064718.0U Active CN214184683U (en) | 2020-09-18 | 2020-09-18 | Rapid shape correction and detection device for long and thin step shaft part |
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