CN114211307A - Processing method of transmission input shaft - Google Patents
Processing method of transmission input shaft Download PDFInfo
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- CN114211307A CN114211307A CN202111651858.0A CN202111651858A CN114211307A CN 114211307 A CN114211307 A CN 114211307A CN 202111651858 A CN202111651858 A CN 202111651858A CN 114211307 A CN114211307 A CN 114211307A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 14
- 238000003672 processing method Methods 0.000 title claims abstract description 4
- 238000013461 design Methods 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 14
- 238000012545 processing Methods 0.000 abstract description 12
- 238000003754 machining Methods 0.000 abstract description 11
- 230000009286 beneficial effect Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000009191 jumping Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/20—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring workpiece characteristics, e.g. contour, dimension, hardness
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- Engineering & Computer Science (AREA)
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Abstract
The invention relates to the technical field of transmission input shaft machining, in particular to a method for machining a transmission input shaft. The method comprises the following steps: step 1: clamping the input shaft on a numerical control lathe, and turning the input shaft, wherein a right cutter turns an A surface, a D surface and an E surface on the input shaft, and a left cutter turns a B surface and a C surface on the input shaft; step 2: measuring the distance between the C, D surfaces to obtain a CD measured value, subtracting the CD measured value from a CD design value to obtain a CD error value, and when the CD error value is greater than the CD design value, enabling the left knife and the right knife to be close to each other; when the CD error value is smaller than the CD design value, the left knife and the right knife are far away from each other; and step 3: repeating the step 1, and turning the next input shaft; and 4, step 4: and repeating the step 2 and the step 3 until the measured CD measured value is equal to the CD designed value. The processing method of the input shaft of the transmission can improve the processing precision of the input shaft.
Description
Technical Field
The invention relates to the technical field of transmission input shaft machining, in particular to a method for machining a transmission input shaft.
Background
The input shaft in the derailleur needs to rotate when using, so can install bearing and bearing jump ring on the input shaft, and for the installation of convenient bearing and bearing jump ring, still need carry out lathe work to the input shaft to the position of processing installation bearing and bearing jump ring. While turning has certain error, but traditional bearing jump ring has multiple different width, can select corresponding bearing jump ring according to actual width when the installation.
However, the increase of the types of the bearing clamp springs can also increase the processing procedures, the processing cost and the storage cost, and on the basis, the bearing clamp springs with the same width are used in the transmission at present, so that the corresponding bearing clamp springs cannot be selected according to the actual installation width, and the requirement on the turning precision of the installation position is higher. In the actual machining process, as the number of parts machined by the lathe increases, the left and right blades of the lathe are worn, the width of the machined mounting position increases, and finally the precision is deteriorated, so that a machining method with higher precision is needed.
Disclosure of Invention
The invention aims to provide a method for processing an input shaft of a transmission, which is used for improving the processing precision of the input shaft.
In order to achieve the purpose, the invention adopts the following technical scheme: a method for processing an input shaft of a transmission comprises the following steps:
step 1: clamping the input shaft on a numerical control lathe, and turning the input shaft, wherein a right cutter turns an A surface, a D surface and an E surface on the input shaft, a left cutter turns a B surface and a C surface on the input shaft, and the diameters of the cross sections of the C surface and the D surface are equal;
step 2: taking the input shaft off the numerical control lathe, measuring the distance between C, D surfaces to obtain a CD measured value, subtracting the CD measured value from a CD design value to obtain a CD error value, and moving at least one of the left cutter and the right cutter to enable the left cutter and the right cutter to be close to each other when the CD error value is greater than the CD design value, wherein the moving distance is equal to the CD error value; when the CD error value is smaller than the CD design value, at least one of the left knife and the right knife is moved to enable the left knife and the right knife to be away from each other, and the moving distance is equal to the CD error value;
and step 3: repeating the step 1, and turning the next input shaft;
and 4, step 4: and repeating the step 2 and the step 3 until the measured CD measured value is equal to the CD designed value.
The beneficial effect of this scheme does:
1. the CD design value in the scheme is a numerical value on a design drawing. The moving distance of the turning tool in the numerical control lathe can be determined by changing the moving distance, and the positions of the A surface, the B surface, the C surface, the D surface and the E surface are determined.
2. Steps 1 to 4 in the scheme are used for debugging the numerical control lathe, and the input shaft can be directly clamped on the numerical control lathe after debugging, so that batch processing can be performed on the input shaft.
3. In the scheme, only one clamping is carried out when one input shaft is turned, and the measured value of the CD is greater than the designed value of the CD as an example: after measuring the CD measured value in step 2, turning the next input shaft in step 3. Rather than clamping the shaft again on the numerically controlled lathe and re-turning either the C-plane or the D-plane until the CD measurements after turning are satisfactory. According to the scheme, adverse effects on turning caused by clamping errors can be avoided only by once clamping, so that the adjustment precision of the turning tool is improved, and the machining precision of the input shaft is improved. In addition, the traditional debugging usually needs to carry out clamping twice or more, when the secondary clamping is carried out for debugging, jumping tolerance during clamping can be accumulated, finally, the debugging accuracy is reduced continuously, and the processing precision is also reduced.
Further, step 4, recording the standard position of the E surface after the measured CD value is equal to the designed CD value; further comprising the step 5: clamping the next input shaft on the numerically controlled lathe, moving the right cutter to the side close to the E surface until the right cutter abuts against the E surface, recording the actual position of the E surface, calculating the length between the actual position of the E surface and the standard position of the E surface to obtain an adjusting error value, and inputting the adjusting error value in the numerically controlled lathe to compensate the cutter setting points of the A surface, the B surface, the C surface and the D surface.
The beneficial effect of this scheme does: and 5, integrally adjusting the turning positions of the surface A, the surface B, the surface C and the surface D according to the position of the surface E of each clamped input shaft when the input shafts are subjected to batch processing. Axial skew takes place easily when the input shaft centre gripping, adopts step 5 can make the lathe tool along with the synchronous skew of input shaft when turning A face, B face, C face and D face to make A face, B face, C face and the D face after the turning can not take place the skew on the input shaft, avoid the centre gripping error to produce adverse effect to the precision, effectively improve the machining precision.
Further, step 2 and step 4 measure the CD measurements using a length micrometer.
The beneficial effect of this scheme does: the length micrometer is simple to measure and accurate in measurement.
Further, after the transmission shaft is turned in the step 5, measuring a CD measured value, and after the CD measured value is greater than or equal to a CD design value, repeating the steps 1, 2, 3 and 4 to adjust at least one of the left cutter and the right cutter.
The beneficial effect of this scheme does: when the number of the input shafts for turning is too large, the turning tools can be worn, and the wear of the turning tools can be found in time in the scheme, so that the reduction of the processing precision is avoided.
Further, in the step 5, the turning sequence of the surface A, the surface D and the surface E is sequentially the surface E, the surface D and the surface A; and turning the C surface in the B surface and the C surface.
The beneficial effect of this scheme does: turning order in this scheme of adoption, the displacement of lathe tool is shorter, and machining efficiency is higher.
Further, in the step 5, turning is performed on the A surface, the D surface and the E surface, and then turning is performed on the B surface and the C surface.
The beneficial effect of this scheme does: turning order in this scheme of adoption, the displacement of lathe tool is shorter, and machining efficiency is higher.
Drawings
FIG. 1 is an elevational, vertical cross-sectional view of an input shaft machined in an embodiment of the present invention.
Detailed Description
The following is further detailed by way of specific embodiments:
examples
A method for processing an input shaft of a transmission comprises the following steps:
step 1: as shown in fig. 1, the input shaft is clamped on a numerically controlled lathe, which is used in this embodiment, and the input shaft extends along the Z axis of the three-dimensional space coordinate axis in the numerically controlled lathe; turning the input shaft according to the design value of the input shaft, wherein an E surface, a D surface and an A surface are sequentially turned on the input shaft through a right cutter, a C surface is turned on the input shaft through a left cutter, then a B surface is turned, and the diameters of the cross sections of the C surface and the D surface are equal;
step 2: taking down the input shaft from the numerically controlled lathe, measuring the distance between the C, D surfaces by using a length micrometer to obtain a CD measured value, and subtracting the CD measured value from a CD design value to obtain a CD error value, wherein the CD measured value-CD design value is adopted in the embodiment; when the CD error value is larger than zero, at least one of the left knife and the right knife is moved to enable the left knife and the right knife to be close to each other, and the moving distance is equal to the CD error value; when the D error value is less than zero, at least one of the left knife and the right knife is moved to enable the left knife and the right knife to be away from each other, and the moving distance is equal to the CD error value; the design value of the CD in this example is the length of the CD on the drawing, and takes the length of the CD on the drawing as an example, at this time, the design value of the CD is 11 mm.
And step 3: repeating the step 1, and turning the next input shaft;
and 4, step 4: repeating the step 2 and the step 3, continuously adjusting at least one of the left cutter and the right cutter until the measured CD value is equal to the CD design value, recording the standard position of the E surface, recording the value of the E surface on the Z axis of the three-dimensional space coordinate axis in the embodiment to obtain the standard value of the E surface, and automatically recording the positions of the B surface, the C surface and the D surface of the A surface in the three-dimensional space coordinate axis in the numerical control lathe;
and 5: clamping the next input shaft on the numerically controlled lathe, moving the right cutter to the side close to the E surface until the right cutter abuts against the E surface, recording the actual position of the E surface, recording the actual value of the E surface on the Z axis of the three-dimensional space coordinate axis in the embodiment to obtain the actual value of the E surface, and obtaining the adjustment error value by using the actual value of the E surface-the standard value of the E surface; the position of the surface A, the surface B, the surface C and the surface D, recorded in the upper numerical control lathe, on the Z axis of the position of the three-dimensional space coordinate axis + the error value adjustment are compensated, so that the surface A, the surface B, the surface C and the surface D actually turned by the turning tool synchronously deviate along with the input shaft, and the positions of the surface A, the surface B, the surface C and the surface D on the input shaft cannot be changed, and the machining precision is further reduced;
and (3) taking the input shaft off the numerically controlled lathe after the input shaft is turned, measuring the CD measured value of the next input shaft by using a length micrometer, repeating the steps 1, 2, 3 and 4 when the CD measured value is greater than or equal to the CD designed value, and adjusting at least one of the left cutter and the right cutter.
The foregoing is merely an example of the present invention and common general knowledge in the art of designing and/or characterizing particular aspects and/or features is not described in any greater detail herein. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several variations and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (6)
1. A processing method of a transmission input shaft is characterized in that: the method comprises the following steps:
step 1: clamping the input shaft on a numerical control lathe, and turning the input shaft, wherein a right cutter turns an A surface, a D surface and an E surface on the input shaft, a left cutter turns a B surface and a C surface on the input shaft, and the diameters of the cross sections of the C surface and the D surface are equal;
step 2: taking the input shaft off the numerical control lathe, measuring the distance between C, D surfaces to obtain a CD measured value, subtracting the CD measured value from a CD design value to obtain a CD error value, and moving at least one of the left cutter and the right cutter to enable the left cutter and the right cutter to be close to each other when the CD error value is greater than the CD design value, wherein the moving distance is equal to the CD error value; when the CD error value is smaller than the CD design value, at least one of the left knife and the right knife is moved to enable the left knife and the right knife to be away from each other, and the moving distance is equal to the CD error value;
and step 3: repeating the step 1, and turning the next input shaft;
and 4, step 4: and repeating the step 2 and the step 3 until the measured CD measured value is equal to the CD designed value.
2. The method of claim 1, wherein: step 4, recording the standard position of the E surface after the measured CD measured value is equal to the designed CD value; further comprising the step 5: clamping the next input shaft on the numerically controlled lathe, moving the right cutter to the side close to the E surface until the right cutter abuts against the E surface, recording the actual position of the E surface, calculating the length between the actual position of the E surface and the standard position of the E surface to obtain an adjusting error value, and inputting the adjusting error value in the numerically controlled lathe to compensate the cutter setting points of the A surface, the B surface, the C surface and the D surface.
3. The method of claim 2, wherein: and 2, measuring the CD measured value by adopting a length micrometer in the steps 2 and 4.
4. The method of claim 2, wherein: and 5, after the transmission shaft is turned in the step 5, measuring a CD measured value, repeating the steps 1, 2, 3 and 4 after the CD measured value is greater than or equal to a CD design value, and adjusting at least one of the left cutter and the right cutter.
5. The method of claim 2, wherein: in the step 5, turning the surface A, the surface D and the surface E sequentially to form the surface E, the surface D and the surface A; and turning the C surface in the B surface and the C surface.
6. The method of claim 5, wherein: in the step 5, turning is firstly carried out on the surface A, the surface D and the surface E, and then turning is carried out on the surface B and the surface C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111651858.0A CN114211307A (en) | 2021-12-30 | 2021-12-30 | Processing method of transmission input shaft |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111651858.0A CN114211307A (en) | 2021-12-30 | 2021-12-30 | Processing method of transmission input shaft |
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| Publication Number | Publication Date |
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| CN114211307A true CN114211307A (en) | 2022-03-22 |
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| CN202111651858.0A Pending CN114211307A (en) | 2021-12-30 | 2021-12-30 | Processing method of transmission input shaft |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104874865A (en) * | 2014-12-13 | 2015-09-02 | 余姚市庆达机械有限公司 | Generating machining tool for star wheel teeth of single-screw air compressors |
| CN107415060A (en) * | 2017-09-26 | 2017-12-01 | 长沙理工大学 | Precision machining method for small-caliber rotation axis symmetrical optical curved surface element |
| CN110405527A (en) * | 2019-06-17 | 2019-11-05 | 福州创杰机械有限公司 | A kind of special purpose machine tool of processing cylinder sleeve |
| CN213350842U (en) * | 2020-10-31 | 2021-06-04 | 安徽远大轴承科技有限公司 | Numerical control lathe for processing bearing ring |
| WO2021193728A1 (en) * | 2020-03-26 | 2021-09-30 | ファナック株式会社 | Control device for machine tool, control system, and control method |
-
2021
- 2021-12-30 CN CN202111651858.0A patent/CN114211307A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104874865A (en) * | 2014-12-13 | 2015-09-02 | 余姚市庆达机械有限公司 | Generating machining tool for star wheel teeth of single-screw air compressors |
| CN107415060A (en) * | 2017-09-26 | 2017-12-01 | 长沙理工大学 | Precision machining method for small-caliber rotation axis symmetrical optical curved surface element |
| CN110405527A (en) * | 2019-06-17 | 2019-11-05 | 福州创杰机械有限公司 | A kind of special purpose machine tool of processing cylinder sleeve |
| WO2021193728A1 (en) * | 2020-03-26 | 2021-09-30 | ファナック株式会社 | Control device for machine tool, control system, and control method |
| CN213350842U (en) * | 2020-10-31 | 2021-06-04 | 安徽远大轴承科技有限公司 | Numerical control lathe for processing bearing ring |
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Application publication date: 20220322 |