CN117308732B - Phase correction method for split eccentric gear - Google Patents
Phase correction method for split eccentric gear Download PDFInfo
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- CN117308732B CN117308732B CN202311460841.6A CN202311460841A CN117308732B CN 117308732 B CN117308732 B CN 117308732B CN 202311460841 A CN202311460841 A CN 202311460841A CN 117308732 B CN117308732 B CN 117308732B
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- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000012937 correction Methods 0.000 title claims abstract description 19
- 238000001514 detection method Methods 0.000 claims abstract description 22
- 238000012545 processing Methods 0.000 claims abstract description 21
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000003754 machining Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
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- Gears, Cams (AREA)
Abstract
The invention discloses a phase correction method of a split type eccentric gear, which is characterized in that a connecting shaft on an eccentric hub is arranged in a central hole of a reference gear ring, then teeth symmetrical along the cutting tooth reference on the left side and the right side are marked with serial numbers in sequence by taking the cutting tooth reference on the reference gear ring as the center; a group of teeth marked with serial numbers on the reference gear ring are clamped into a detection device with a dial indicator, and the minimum reading value on the dial indicator is detected and recorded; then clamping a detection device in a group of symmetrical teeth, and recording the minimum reading value on the dial indicator by the same method; comparing the minimum values of the two readings, and if the minimum values exceed the allowable deviation range, finely adjusting the phase of the eccentric hub until the deviation between the minimum values of the two readings is within the allowable deviation range; the eccentric wheel hub and the reference gear ring are fixed, so that the split eccentric gear is assembled and the phase is corrected; the method has the advantages of simplifying the processing technology, particularly having low requirements on processing equipment and processing phase precision, and reducing the processing difficulty and processing cost.
Description
Technical Field
The invention relates to an eccentric gear used in a transmission system of a press machine, in particular to a phase correction method of a split type eccentric gear.
Background
Eccentric gears are used very widely in presses as one of the components of the drive train for driving the connecting rod up and down. The eccentric gear comprises a reference tooth and an eccentric part, the phase difference between the reference tooth and the eccentric part of the eccentric gear can have an important influence on the synchronism between the action points of the press, so that the slide block is inclined, the quality of a product is influenced, and even the equipment is possibly damaged, which is the key point of the eccentric gear in the processing. The traditional eccentric gears are basically of an integrated structure, the eccentricity of the eccentric gears and the relative position precision of the center of the eccentric part and the center line of the reference tooth are mainly ensured through machining, so that the purpose of reducing the phase difference between the eccentric part and the reference tooth is realized, but the integrated eccentric gears are very complex in machining process, high in machining difficulty and high in cost, and the requirements on machining equipment are also very high.
Disclosure of Invention
The invention aims to solve the technical problem of providing a phase correction method of a split type eccentric gear, which combines a reference gear ring and an eccentric hub in the eccentric gear after being independently processed, and corrects the phase in the combining process so as to reduce the integral processing difficulty and the processing cost of the eccentric gear.
The technical scheme adopted for solving the technical problems is as follows: the phase correction method of the split type eccentric gear comprises a reference gear ring and an eccentric hub, wherein a central hole is formed in the reference gear ring, a connecting shaft is integrally and eccentrically arranged on the eccentric hub, the connecting shaft is inserted into the central hole, the connecting shaft is in constant diameter with the central hole and is matched with the central hole according to a matching tolerance, and the eccentric hub is fixed with the reference gear ring through a bolt; the phase correction method comprises the following specific steps:
(1) Placing a reference gear ring on the correction platform and enabling the reference gear ring to be in a horizontal state;
(2) Drawing a datum line on the upper surface of the eccentric hub along the central point of the connecting shaft and the central point of the eccentric hub, and fixing an adjusting block on the outer circumferential surface of the eccentric hub, wherein the adjusting block is symmetrical along the datum line;
(3) The connecting shaft on the eccentric hub is arranged in the central hole of the reference gear ring, the reference line on the eccentric hub is aligned with the cutting tooth reference marked on the reference gear ring during assembly, then an adjusting seat is fixedly arranged on the upper surface of the reference gear ring, the adjusting seat is symmetrical along the cutting tooth reference, the lower end of the adjusting block is inserted into the adjusting seat, the left end and the right end of the adjusting seat are respectively screwed into adjusting screws, and the adjusting screws are propped against the left side and the right side of the adjusting block;
(4) The teeth symmetrical along the cutting tooth reference on the left and right sides are marked with serial numbers in sequence by taking the cutting tooth reference on the reference tooth ring as the center;
(5) A detection device with a dial indicator is clamped in a tooth valley of a group of teeth marked with serial numbers on a reference gear ring, the dial indicator is in a horizontal placement state, a measuring head on the dial indicator is propped against the outer circumferential surface of an eccentric hub, the dial indicator on the detection device is stably rotated around a clamping point of the detection device in the tooth valley, and the minimum reading value of the dial indicator is recorded; then clamping a detection device in a group of symmetrical teeth which are symmetrical with the group of teeth along the cutting tooth reference, and recording the minimum reading value on the dial indicator by the same method;
(6) Comparing the two minimum readings measured in the step (5), and if the two minimum readings are within the allowable deviation range, fixing the eccentric hub and the reference gear ring by using bolts; if the deviation exceeds the allowable range of the deviation, rotating adjusting screws at two sides of the adjusting block, and finely adjusting the phase of the eccentric hub by pushing the adjusting block until the deviation between the minimum values of the two readings is within the allowable range;
(7) And installing the eccentric hub and the reference gear ring which are mutually fixed into processing equipment, processing at least two pin holes which are uniformly distributed along the circumferential direction between the connecting shaft and the central hole, then assembling pins in the pin holes, driving headless screws between the pins and the reference gear ring for anti-loosening treatment, and realizing the assembly of the split type eccentric gear and correcting the phase.
Further, the specific method of the step (1) is as follows: a plurality of cushion blocks and height adjusting feet which are uniformly distributed are arranged on the correction platform along the circumferential direction, the cushion blocks are positioned on the inner ring, the height adjusting feet are positioned on the outer ring, the reference gear ring is horizontally arranged on the cushion blocks and the height adjusting feet, and the reference gear ring is in a horizontal state by adjusting the height adjusting feet.
Further, in step (5), detection device include perpendicular fixed measuring rod and connecting rod, measuring rod be used for the card to go into in the tooth valley of two adjacent teeth and closely laminate with the tooth edge, the connecting rod be in the horizontality, the percentage table fix the tip of connecting rod.
In the step (6), after the deviation between the minimum values of the two readings is adjusted to be within the allowable range, before the eccentric hub and the reference gear ring are fixed, a group of teeth with different serial numbers are replaced, and the method of the steps (5) and (6) is repeated to verify the phase adjustment.
Compared with the prior art, the invention has the advantages that:
(1) Compared with the traditional way of integrally processing the eccentric gear, the method simplifies the processing technology, particularly has low requirements on processing equipment and processing phase precision, and reduces the processing difficulty and processing cost;
(2) The standard requirements for different eccentric amounts only need to redesign the eccentric wheel hub, the standard gear ring does not need to be changed, and the standard gear ring has better universality when applied to the equipment with standardized specifications;
(3) And the assembly of the eccentric gear and the opening of the phase correction working space are convenient for hoisting parts and is beneficial to improving the working efficiency especially for phase adjustment.
Drawings
FIG. 1 is an exploded schematic view of a split eccentric gear of the present invention;
FIG. 2 is a view showing the state of placement of the reference ring gear of step (1) of the present invention;
FIG. 3 is a schematic diagram showing the state of step (3) of the present invention;
FIG. 4 is a top view of FIG. 3 at A;
FIG. 5 is a partial schematic view of the step (4) of the present invention after the teeth of the reference ring gear are marked with serial numbers;
FIG. 6 is a schematic diagram showing the detection state of step (5) of the present invention;
FIG. 7 is a perspective view showing a locked state of the detection device on the reference ring gear in the step (5) of the present invention;
FIG. 8 is a schematic diagram showing the state of step (7) of the present invention;
fig. 9 is a cross-sectional view showing the connection of the pin to the connecting shaft and the reference ring gear in step (7) of the present invention.
Detailed Description
The invention is described in further detail below with reference to the embodiments of the drawings.
As shown in fig. 1, the split type eccentric gear comprises a reference gear ring 1 and an eccentric hub 2, wherein a central hole 11 is formed in the reference gear ring 1, a connecting shaft 3 is integrally and eccentrically arranged on the eccentric hub 2, the connecting shaft 3 is inserted into the central hole 11, the connecting shaft 3 and the central hole 11 are in equal diameter and are matched according to a matching tolerance, and the eccentric hub 2 and the reference gear ring 1 are fixed through bolts 4.
The phase correction method of the split eccentric gear comprises the following specific steps:
(1) A plurality of cushion blocks 6 and height adjusting pins 7 which are uniformly distributed are arranged on the correction platform 5 along the circumferential direction, the cushion blocks 6 are positioned on an inner ring, the height adjusting pins 7 are positioned on an outer ring, the reference gear ring 1 is horizontally arranged on the cushion blocks 6 and the height adjusting pins 7, and the reference gear ring 1 is in a horizontal state by adjusting the height adjusting pins 7, as shown in fig. 2;
(2) Drawing a datum line 21 on the upper surface of the eccentric hub 2 along the central point of the connecting shaft 3 and the central point of the eccentric hub 2, and fixing an adjusting block 22 on the outer circumferential surface of the eccentric hub 2, wherein the adjusting block 22 is symmetrical along the datum line 21;
(3) The connecting shaft 3 on the eccentric hub 2 is arranged in the central hole 11 of the reference gear ring 1, the datum line 21 on the eccentric hub 2 is aligned with the gear cutting datum 12 marked on the reference gear ring 1 during assembly (the gear cutting datum 12 is marked during the processing of the reference gear ring 1 and is the datum position during the gear processing and is the common practice), then an adjusting seat 13 is fixedly arranged on the upper surface of the reference gear ring 1, the adjusting seat 13 is symmetrical along the gear cutting datum 12, the lower end of an adjusting block 22 is inserted into the adjusting seat 13, adjusting screws 14 are respectively screwed into the left end and the right end of the adjusting seat 13, and the adjusting screws 14 are abutted against the left side and the right side of the adjusting block 22, as shown in fig. 3 and 4;
(4) The teeth symmetrical along the cutting tooth reference 12 on the left and right sides are marked with serial numbers in sequence by taking the cutting tooth reference 12 on the reference gear ring 1 as the center, as shown in fig. 5;
(5) The detection device with the dial indicator 82 is clamped in the tooth valley of a group of teeth (namely two adjacent teeth such as the teeth with the serial numbers of 19 and 20) marked with serial numbers of the reference gear ring 1, the detection device comprises a detection rod 8 and a connecting rod 81 which are mutually and vertically fixed, the detection rod 8 is used for being clamped in the tooth valley of the two adjacent teeth and tightly attached to the edge of the teeth, the connecting rod 81 is in a horizontal state, the dial indicator 82 is fixed at the end part of the connecting rod 81, the dial indicator 82 is also in a horizontal placement state, a measuring head on the dial indicator 82 is abutted against the outer circumferential surface of the eccentric hub 2, the connecting rod 81 is stably rotated by taking the detection rod 8 as the center, the dial indicator 82 is contacted with different positions of the outer circumferential surface of the eccentric hub 2, and the minimum value of the reading on the dial indicator 82 is recorded, and the point corresponding to the minimum value is the tangent point of an arc formed by rotation of the dial indicator 82 and the outer circumferential surface of the eccentric hub 2, as shown in fig. 6 and 7; then, the detection device is clamped in a group of symmetrical teeth (namely, teeth with the serial numbers of 19 and 20 positioned at the other side of the cutting tooth reference 12) which are symmetrical with the group of teeth along the cutting tooth reference 12, and the minimum reading value on the dial indicator is recorded by the same method;
(6) Comparing the two minimum readings measured in the step (5), and if the two minimum readings are within the allowable deviation range, fixing the eccentric hub 2 and the reference gear ring 1 by using bolts 4; if the deviation is beyond the allowable range, the adjusting screw 14 at the two sides of the adjusting block 22 is rotated, and the phase of the eccentric hub 2 is finely adjusted by pushing the adjusting block 22 until the deviation between the minimum values of the two readings is within the allowable range;
(7) The eccentric hub 2 and the reference gear ring 1 which are mutually fixed are installed in processing equipment, at least two pin holes which are uniformly distributed along the circumferential direction are processed between the connecting shaft 3 and the central hole 11, then a pin 9 is assembled in the pin holes, a headless screw 91 is driven between the pin 9 and the reference gear ring 1, and meanwhile, edge knocking and loosening prevention treatment is carried out, as shown in fig. 8 and 9, the assembly of the split eccentric gear is finally realized, and the phase is corrected.
In the above embodiment, the height-adjusting foot 7 is a commercially available height-adjustable existing component.
In the method, in the step (6), after the deviation between the minimum values of the two readings is adjusted to be within the allowable range, before the eccentric hub 2 and the reference gear ring 1 are fixed, a group of teeth with different serial numbers (such as teeth with serial numbers 10 and 11) can be replaced, the phase adjustment is verified by repeating the methods of the steps (5) and (6), and after the verification, the eccentric hub 2 and the reference gear ring 1 are fixed.
The scope of the present invention includes, but is not limited to, the above embodiments, and any alterations, modifications, and improvements made by those skilled in the art are intended to fall within the scope of the invention.
Claims (4)
1. The phase correction method of the split type eccentric gear comprises a reference gear ring and an eccentric hub, wherein a central hole is formed in the reference gear ring, a connecting shaft is integrally and eccentrically arranged on the eccentric hub, the connecting shaft is inserted into the central hole, the connecting shaft is in constant diameter with the central hole and is matched with the central hole according to a matching tolerance, and the eccentric hub is fixed with the reference gear ring through a bolt; the method is characterized in that: the phase correction method comprises the following specific steps:
(1) Placing a reference gear ring on the correction platform and enabling the reference gear ring to be in a horizontal state;
(2) Drawing a datum line on the upper surface of the eccentric hub along the central point of the connecting shaft and the central point of the eccentric hub, and fixing an adjusting block on the outer circumferential surface of the eccentric hub, wherein the adjusting block is symmetrical along the datum line;
(3) The connecting shaft on the eccentric hub is arranged in the central hole of the reference gear ring, the reference line on the eccentric hub is aligned with the cutting tooth reference marked on the reference gear ring during assembly, then an adjusting seat is fixedly arranged on the upper surface of the reference gear ring, the adjusting seat is symmetrical along the cutting tooth reference, the lower end of the adjusting block is inserted into the adjusting seat, the left end and the right end of the adjusting seat are respectively screwed into adjusting screws, and the adjusting screws are propped against the left side and the right side of the adjusting block;
(4) The teeth symmetrical along the cutting tooth reference on the left and right sides are marked with serial numbers in sequence by taking the cutting tooth reference on the reference tooth ring as the center;
(5) A detection device with a dial indicator is clamped in a tooth valley of a group of teeth marked with serial numbers on a reference gear ring, the dial indicator is in a horizontal placement state, a measuring head on the dial indicator is propped against the outer circumferential surface of an eccentric hub, the dial indicator on the detection device is stably rotated around a clamping point of the detection device in the tooth valley, and the minimum reading value of the dial indicator is recorded; then clamping a detection device in a group of symmetrical teeth which are symmetrical with the group of teeth along the cutting tooth reference, and recording the minimum reading value on the dial indicator by the same method;
(6) Comparing the two minimum readings measured in the step (5), and if the two minimum readings are within the allowable deviation range, fixing the eccentric hub and the reference gear ring by using bolts; if the deviation exceeds the allowable range of the deviation, rotating adjusting screws at two sides of the adjusting block, and finely adjusting the phase of the eccentric hub by pushing the adjusting block until the deviation between the minimum values of the two readings is within the allowable range;
(7) And installing the eccentric hub and the reference gear ring which are mutually fixed into processing equipment, processing at least two pin holes which are uniformly distributed along the circumferential direction between the connecting shaft and the central hole, then assembling pins in the pin holes, driving headless screws between the pins and the reference gear ring for anti-loosening treatment, and realizing the assembly of the split type eccentric gear and correcting the phase.
2. The phase correction method of a split eccentric gear as claimed in claim 1, wherein: the specific method of the step (1) is as follows: a plurality of cushion blocks and height adjusting feet which are uniformly distributed are arranged on the correction platform along the circumferential direction, the cushion blocks are positioned on the inner ring, the height adjusting feet are positioned on the outer ring, the reference gear ring is horizontally arranged on the cushion blocks and the height adjusting feet, and the reference gear ring is in a horizontal state by adjusting the height adjusting feet.
3. The phase correction method of a split eccentric gear as claimed in claim 1, wherein: in the step (5), the detection device comprises a detection rod and a connecting rod which are vertically fixed, wherein the detection rod is used for being clamped into the tooth valleys of two adjacent teeth and is tightly attached to the edges of the teeth, the connecting rod is in a horizontal state, and the dial indicator is fixed at the end part of the connecting rod.
4. The phase correction method of a split eccentric gear as claimed in claim 1, wherein: in the step (6), after the deviation between the minimum values of the two readings is adjusted to be within the allowable range, before the eccentric hub and the reference gear ring are fixed, a group of teeth with different serial numbers are replaced, and the methods of the steps (5) and (6) are repeated to verify the phase adjustment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311460841.6A CN117308732B (en) | 2023-11-02 | 2023-11-02 | Phase correction method for split eccentric gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311460841.6A CN117308732B (en) | 2023-11-02 | 2023-11-02 | Phase correction method for split eccentric gear |
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| Publication Number | Publication Date |
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| CN117308732A CN117308732A (en) | 2023-12-29 |
| CN117308732B true CN117308732B (en) | 2024-04-12 |
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| CN202311460841.6A Active CN117308732B (en) | 2023-11-02 | 2023-11-02 | Phase correction method for split eccentric gear |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05296760A (en) * | 1992-04-16 | 1993-11-09 | Toyota Motor Corp | Eccentric measuring device for gear tooth |
| CN1944039A (en) * | 2006-10-16 | 2007-04-11 | 江苏省徐州锻压机床厂 | Synchronous chucking for double point press gear-mating, correction and detection and its application |
| JP2012103216A (en) * | 2010-11-12 | 2012-05-31 | Toyota Motor Corp | Misalignment measurement method and misalignment measurement device for gear |
| CN103196344A (en) * | 2013-03-22 | 2013-07-10 | 南通锻压设备股份有限公司 | Eccentric gear and eccentric body synchronous calibrating method and eccentric gear and eccentric body calibrating device |
| WO2014092523A1 (en) * | 2012-11-23 | 2014-06-19 | Universite Sidi Mohamed Ben Abdellah | Device for controlling the alignment of transmission shafts |
| CN109211073A (en) * | 2018-10-29 | 2019-01-15 | 武汉重工铸锻有限责任公司 | Detect the measuring device and measuring method of coaxial blind hole inner circle coaxiality deviation up and down |
| CN109434577A (en) * | 2018-11-28 | 2019-03-08 | 泰州市新亚传动设备有限公司 | A kind of special helical gear eccentric correction device |
| CN110926314A (en) * | 2019-12-18 | 2020-03-27 | 荣成锻压机床有限公司 | Synchronous detection method for eccentric surfaces of double-eccentric gear |
| CN211783257U (en) * | 2020-01-20 | 2020-10-27 | 湖北新华光信息材料有限公司 | Eccentric detection device of many sizes glass type spare |
| CN114801280A (en) * | 2022-04-27 | 2022-07-29 | 金丰（中国）机械工业有限公司 | Gear phase correction device and method for multi-station punching machine |
| CN115014754A (en) * | 2022-06-01 | 2022-09-06 | 中南大学 | Detection device and detection method for angular error consistency of duplicate gear |
-
2023
- 2023-11-02 CN CN202311460841.6A patent/CN117308732B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05296760A (en) * | 1992-04-16 | 1993-11-09 | Toyota Motor Corp | Eccentric measuring device for gear tooth |
| CN1944039A (en) * | 2006-10-16 | 2007-04-11 | 江苏省徐州锻压机床厂 | Synchronous chucking for double point press gear-mating, correction and detection and its application |
| JP2012103216A (en) * | 2010-11-12 | 2012-05-31 | Toyota Motor Corp | Misalignment measurement method and misalignment measurement device for gear |
| WO2014092523A1 (en) * | 2012-11-23 | 2014-06-19 | Universite Sidi Mohamed Ben Abdellah | Device for controlling the alignment of transmission shafts |
| CN103196344A (en) * | 2013-03-22 | 2013-07-10 | 南通锻压设备股份有限公司 | Eccentric gear and eccentric body synchronous calibrating method and eccentric gear and eccentric body calibrating device |
| CN109211073A (en) * | 2018-10-29 | 2019-01-15 | 武汉重工铸锻有限责任公司 | Detect the measuring device and measuring method of coaxial blind hole inner circle coaxiality deviation up and down |
| CN109434577A (en) * | 2018-11-28 | 2019-03-08 | 泰州市新亚传动设备有限公司 | A kind of special helical gear eccentric correction device |
| CN110926314A (en) * | 2019-12-18 | 2020-03-27 | 荣成锻压机床有限公司 | Synchronous detection method for eccentric surfaces of double-eccentric gear |
| CN211783257U (en) * | 2020-01-20 | 2020-10-27 | 湖北新华光信息材料有限公司 | Eccentric detection device of many sizes glass type spare |
| CN114801280A (en) * | 2022-04-27 | 2022-07-29 | 金丰（中国）机械工业有限公司 | Gear phase correction device and method for multi-station punching machine |
| CN115014754A (en) * | 2022-06-01 | 2022-09-06 | 中南大学 | Detection device and detection method for angular error consistency of duplicate gear |
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| Publication number | Publication date |
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| CN117308732A (en) | 2023-12-29 |
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