CN220637183U - Automatic centering device for eccentric shaft and eccentric sleeve during ultrasonic rolling process - Google Patents

Automatic centering device for eccentric shaft and eccentric sleeve during ultrasonic rolling process Download PDF

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Publication number
CN220637183U
CN220637183U CN202321963775.XU CN202321963775U CN220637183U CN 220637183 U CN220637183 U CN 220637183U CN 202321963775 U CN202321963775 U CN 202321963775U CN 220637183 U CN220637183 U CN 220637183U
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China
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eccentric
sleeve
shaft
support
eccentric sleeve
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屈盛官
钟浩
王金涛
曾正锋
李建华
邵徽图
李小强
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South China University of Technology SCUT
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South China University of Technology SCUT
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Abstract

The utility model discloses an automatic centering device for an eccentric shaft and an eccentric sleeve in an ultrasonic rolling process. The utility model can obviously improve the centering precision and centering efficiency of the eccentric shaft and the eccentric sleeve of the RV reducer, thereby improving the ultrasonic rolling processing quality of the eccentric shaft, improving the surface hardness and surface roughness of the eccentric shaft and finally prolonging the service life of the RV reducer.

Description

Automatic centering device for eccentric shaft and eccentric sleeve in ultrasonic rolling process
Technical Field
The utility model belongs to the technical field of processing and manufacturing of RV speed reducers, and particularly relates to an automatic centering device for an eccentric shaft and an eccentric sleeve in an ultrasonic rolling process.
Background
The eccentric shaft is a core transmission component in the RV reducer, and in the transmission process, the eccentric part of the eccentric shaft is in continuous friction contact with the bearing inner ring, so that the eccentric shaft is one of the parts which are most prone to fatigue failure in the RV reducer, and the improvement of the fatigue resistance of the eccentric shaft is a key for prolonging the service life of the whole RV reducer. Ultrasonic rolling is a surface strengthening technology for improving the surface hardness and fatigue resistance of parts, and the ultrasonic rolling technology is applied to the surface strengthening process of the eccentric shaft, so that the surface quality of the eccentric shaft can be obviously improved, and the wear resistance and fatigue resistance of the eccentric shaft are improved.
In the existing technical application of ultrasonic rolling of eccentric shafts, a method of clamping and then rolling is mainly adopted. The method comprises the steps of clamping left and right shaft ends of an eccentric shaft and left and right eccentric sleeves, adjusting the outer circle of the eccentric part of the eccentric shaft to be rolled and the outer circles of the left and right eccentric sleeves to be centered in a manual adjustment mode, screwing a set screw on the eccentric sleeve to fasten the eccentric shaft and the eccentric sleeve together, clamping the whole eccentric shaft and the eccentric sleeve on a machine tool, centering and rotating a main shaft of the machine tool, and carrying out ultrasonic rolling on the eccentric part of the eccentric shaft to generate a uniform strengthening layer on the surface of the eccentric part.
The technical problems are as follows:
the eccentric part of the eccentric shaft and the eccentric sleeve are adjusted to be centered by adopting a manual adjustment mode, so that the efficiency is low, the centering precision is poor, and uniform ultrasonic rolling in the circumferential direction of the eccentric part of the eccentric shaft cannot be ensured.
Therefore, it is desirable to develop an efficient and high-precision automatic centering device for eccentric shafts and eccentric sleeves in an ultrasonic rolling process.
Disclosure of Invention
Aiming at the technical problems existing in the prior art, the utility model aims at: the automatic centering device for the eccentric shaft and the eccentric sleeve in the ultrasonic rolling process can realize the rapid, automatic and accurate centering of the eccentric shaft and the eccentric sleeve, so that the surface of the eccentric shaft is uniformly and ultrasonically rolled and strengthened.
The aim of the utility model is achieved by the following technical scheme:
an automatic centering device for an eccentric shaft and an eccentric sleeve in an ultrasonic rolling process comprises a clamp assembly, a control system, a base, a support and the eccentric shaft;
the eccentric shaft comprises a long shaft end of the eccentric shaft, a first eccentric part of the eccentric shaft, a second eccentric part of the eccentric shaft and a short shaft end of the eccentric shaft;
the clamp assembly comprises a left eccentric sleeve, a belt pulley sleeve and a right eccentric sleeve, wherein the first end of the belt pulley sleeve is connected with the long shaft end of the eccentric shaft, the left eccentric sleeve is connected with the second end of the belt pulley sleeve, and the right eccentric sleeve is connected with the short shaft end of the eccentric shaft;
the support comprises a left support and a right support, the left support and the right support are both arranged on the base, the left support is connected with the left eccentric sleeve, and the right support is connected with the right eccentric sleeve;
the control system comprises a control box, a servo motor, a profile sensor, a belt wheel and a driving belt, wherein the control box and the servo motor are installed on a base, the belt wheel is connected with the servo motor, the driving belt is connected with a belt wheel sleeve and the belt wheel, and the profile sensor is installed on a right support.
Further, a belt pulley sleeve long shaft is arranged at the first end of the belt pulley sleeve, and the belt pulley sleeve long shaft is connected with the left eccentric sleeve; the second end of the pulley sleeve is internally provided with a pulley sleeve inner hole, and the pulley sleeve inner hole is connected with the long shaft end of the eccentric shaft.
Further, the outer circular surface of the belt pulley sleeve is provided with a belt pulley sleeve threaded hole and belt pulley sleeve gear teeth, the belt pulley sleeve threaded hole is fixedly connected with the long shaft end of the eccentric shaft by a set screw, and the belt pulley sleeve gear teeth are connected with the driving belt.
Further, a left eccentric sleeve eccentric inner hole is formed in the left eccentric sleeve, and the left eccentric sleeve eccentric inner hole is connected with the belt wheel sleeve; the left eccentric sleeve is characterized in that a left eccentric sleeve rectangular groove and a left eccentric sleeve threaded hole are formed in the top end of the left eccentric sleeve, the left eccentric sleeve rectangular groove is inserted into the left support and connected with the left support, and the left eccentric sleeve threaded hole is fixedly connected with the long shaft of the belt wheel sleeve by a set screw.
Further, a right eccentric sleeve eccentric inner hole is formed in the right eccentric sleeve, and the right eccentric sleeve eccentric inner hole is connected with the short shaft end of the eccentric shaft; the right eccentric sleeve is characterized in that a right eccentric sleeve rectangular groove and a right eccentric sleeve threaded hole are formed in the top end of the right eccentric sleeve, the right eccentric sleeve rectangular groove is inserted into the right support and connected with the right support, and the right eccentric sleeve threaded hole is fixedly connected with the short shaft end of the eccentric shaft by a set screw.
Further, a left support inner hole is formed in one end of the left support, a left support rectangular sliding block is arranged at the top end of the left support inner hole, and the left support inner hole and the left support rectangular sliding block are connected with a left eccentric sleeve in a matching manner;
the right support inner hole is formed in one end of the right support, a right support rectangular sliding block is arranged at the top end of the right support inner hole, and the right support inner hole and the right support rectangular sliding block are connected with a right eccentric sleeve in a matched mode.
Further, a sensor mounting hole is formed in the upper portion of the inner hole of the right support, and the profile sensor is mounted in the sensor mounting hole.
Further, left support rectangle through-hole and right support rectangle through-hole have been seted up respectively to left support and right support bottom both sides, left support rectangle through-hole and right support rectangle through-hole use the bolt to be connected with the base, left support and right support are adjusted through left support rectangle through-hole and right support rectangle through-hole.
Further, a belt wheel through hole is formed in the center of the belt wheel, and the belt wheel through hole is connected with an output shaft of the servo motor; one end of the belt wheel is provided with belt wheel teeth which are sleeved with the driving belt; the other end of the belt wheel is provided with a belt wheel short shaft, the top end of the belt wheel short shaft is provided with a belt wheel threaded hole, and the belt wheel threaded hole is fixedly connected with an output shaft of the servo motor by a set screw.
Further, the servo motor and the control box are fastened and connected with the base through screws.
The utility model discloses an automatic centering method for an eccentric shaft and an eccentric sleeve in an ultrasonic rolling process, which is realized based on the automatic centering device for the eccentric shaft and the eccentric sleeve in the ultrasonic rolling process, and comprises the following steps:
the long shaft end of the eccentric shaft is arranged in an inner hole of the belt pulley sleeve, and a set screw is screwed into a threaded hole of the eccentric sleeve and is screwed tightly, so that the eccentric shaft is tightly connected with the belt pulley sleeve;
the left eccentric sleeve is arranged in the left support, the right eccentric sleeve is arranged in the right support, the bolt at the bottom of one support is unscrewed, and the support is moved outwards;
the transmission belt is sleeved on gear teeth of the belt wheel sleeve, the eccentric shaft and the belt wheel sleeve which are tightly connected together are respectively installed in the eccentric inner hole of the right eccentric sleeve and the eccentric inner hole of the left eccentric sleeve, the position of the support is adjusted to ensure that the transmission belt is proper in tightness, and the support bolt is screwed to finish the primary installation of the eccentric shaft eccentric sleeve;
starting a servo motor to drive the eccentric shaft to rotate in the inner holes of the two eccentric sleeves, and sending a signal to a control box when the contour sensor detects that the outer circle of the first eccentric part of the eccentric shaft or the outer circle of the second eccentric part of the eccentric shaft rotates to the highest point, and outputting a control signal to the servo motor by the control box to stop the servo motor, so that the high-precision centering of the eccentric shaft and the eccentric sleeve is realized;
the set screw is screwed into the left eccentric sleeve threaded hole and the right eccentric sleeve threaded hole and is screwed down, so that the left eccentric sleeve and the right eccentric sleeve are tightly connected with the tightly connected eccentric shaft and the belt wheel sleeve;
unscrewing bolts at the bottom of the support and moving the support, and taking down the eccentric shaft and the eccentric sleeve after centering for the subsequent ultrasonic rolling process. Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, through the left support rectangular slide block and the right support rectangular slide block on the inner holes of the left support and the right support, the accurate centering of the eccentric holes and the outer circles of the left eccentric sleeve and the right eccentric sleeve can be realized, the eccentric shaft is driven by the high-precision servo motor to rotate in the eccentric holes of the left eccentric sleeve and the right eccentric sleeve, when the profile sensor detects that the top end of the eccentric part of the eccentric shaft reaches the maximum height, the eccentric shaft and the eccentric sleeve are completely centered, then the sensor sends a signal to the servo motor, the servo motor stops rotating, and the set screw on the left eccentric sleeve and the right eccentric sleeve is screwed, so that the high-precision automatic centering process of the eccentric shaft and the eccentric sleeve is completed. By adopting the eccentric shaft and eccentric sleeve centering device, the problems of poor centering precision and low efficiency caused by manual operation can be avoided, and a more uniform strengthening layer can be generated on the surface of the eccentric part of the eccentric shaft in the subsequent ultrasonic rolling strengthening process, so that the fatigue resistance and wear resistance of the eccentric part of the eccentric shaft are improved, and the service life of the RV reducer is finally prolonged.
Drawings
FIG. 1 is a schematic perspective view of an embodiment of the present utility model;
FIG. 2 is an exploded view of an embodiment of the present utility model;
FIG. 3 is a schematic perspective view of a clamp assembly with an eccentric shaft installed in accordance with an embodiment of the present utility model;
FIG. 4 is an exploded view of the clamp assembly after installation of the eccentric shaft in accordance with an embodiment of the present utility model;
FIG. 5 is a schematic perspective view of a left eccentric sleeve according to an embodiment of the present utility model;
fig. 6 is a schematic perspective view of a pulley sleeve according to an embodiment of the present utility model;
FIG. 7 is a schematic perspective view of a right eccentric sleeve according to an embodiment of the present utility model;
FIG. 8 is a schematic perspective view of a left support according to an embodiment of the present utility model;
FIG. 9 is a schematic perspective view of a right support according to an embodiment of the present utility model;
fig. 10 is a schematic perspective view of a pulley according to an embodiment of the present utility model.
In the figure:
1-a clamp assembly; 101-left eccentric sleeve; 102-pulley sleeve; 103-right eccentric sleeve; 1011-eccentric inner hole of left eccentric sleeve; 1012-left eccentric sleeve rectangular groove; 1013-left eccentric sleeve threaded hole; 1021-a long axis of the pulley sleeve; 1022-threaded hole of pulley sleeve; 1023-pulley sleeve gear teeth; 1024-inner bore of pulley sleeve; 1031-eccentric inner hole of right eccentric sleeve; 1032-right eccentric sleeve rectangular groove; 1033-right eccentric sleeve threaded hole; 2-a control system; 201-a control box; 202-a servo motor; 203-a profile sensor; 204-pulleys; 205-a drive belt; 2041-pulley teeth; 2042-threaded bore; 2043-pulley through holes; 3-a base; 4-supporting seats; 401-left support; 402-right support; 4011-left support inner hole; 4012-left support rectangular slider; 4013-left support rectangular through hole; 4021-a right support inner hole; 4022-right support rectangular slider; 4023-right support rectangular through hole; 4024-a contour sensor mounting hole; 5-an eccentric shaft; 501-eccentric shaft long shaft end; 502-a first eccentric part of the eccentric shaft; 503-a second eccentric part of the eccentric shaft; 504-short shaft end of eccentric shaft.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present utility model are within the scope of protection of the present utility model.
Examples:
as shown in fig. 1 to 9, the embodiment provides an automatic centering device for an eccentric shaft and an eccentric sleeve in an ultrasonic rolling process, which comprises a clamp assembly 1, a control system 2, a base 3, a support 4 and an eccentric shaft 5.
The eccentric shaft comprises an eccentric shaft long shaft end 501, an eccentric shaft first eccentric part 502, an eccentric shaft second eccentric part 503 and an eccentric shaft short shaft end 504. The clamp assembly 1 comprises a left eccentric sleeve 101, a belt pulley sleeve 102 and a right eccentric sleeve 103, wherein a first end of the belt pulley sleeve 102 is connected with the left eccentric sleeve 101, a second end of the belt pulley sleeve 102 is connected with an eccentric shaft long shaft end 501, and the right eccentric sleeve 103 is connected with an eccentric shaft short shaft end 504; the support 4 comprises a left support 401 and a right support 402, the left support 401 is connected with the left eccentric sleeve 101 through shaft hole matching, the left support 401 is connected with the base 3 through rectangular through holes on two sides of the bottom, the right support 402 is connected with the right eccentric sleeve 103 through shaft hole matching, the right support 402 is connected with the base 3 through rectangular through holes on two sides of the bottom, and the contour sensor 203 is arranged above an inner hole of the right support 402; the control system 2 comprises a control box 201, a servo motor 202, a profile sensor 203, a belt wheel 204 and a driving belt 205, wherein the control box 201 and the servo motor 202 are installed on the base 3 through screw connection, the belt wheel 204 is connected with the servo motor 202 through shaft hole matching, and the driving belt 205 is installed with the belt wheel 204 and the belt wheel sleeve 102 in a matching way.
In order to facilitate the assembly and disassembly of the eccentric shaft, the left support rectangular through hole 4013 and the right support rectangular through hole 4023 are respectively formed in two sides of the bottoms of the left support 401 and the right support 402, when the eccentric shaft is assembled and disassembled, the connecting bolts on the left support rectangular through hole 4013 and the right support rectangular through hole 4023 are unscrewed, the left support 401 and the right support 402 can move left and right, the eccentric shaft is convenient to install and take out, and meanwhile, the transmission belt 205 can be accurately matched with the belt pulley sleeve 102 and the belt pulley 204 by adjusting the relative positions between the left support 401 and the right support 402, so that the transmission belt 205 is ensured not to deflect in the rotation process.
As shown in fig. 1 to 10, the first end of the pulley sleeve 102 is a left end, the second end is a right end, the first end of the pulley sleeve 102 is provided with a pulley sleeve long shaft 1021, the pulley sleeve long shaft is inserted into the left eccentric sleeve through hole 1011, the second end of the pulley sleeve is provided with a pulley sleeve inner hole 1024 concentric with the outer circle of the pulley sleeve, the pulley sleeve outer circle surface is connected with the eccentric shaft long shaft end 501, the pulley sleeve outer circle surface is provided with a pulley sleeve threaded hole 1022 and pulley sleeve gear teeth 1023, and a fastening screw is screwed into the pulley sleeve threaded hole 1022, so that the fastening connection of the pulley sleeve 102 and the eccentric shaft long shaft end 501 can be realized, and the pulley sleeve gear teeth 1023 are rectangular gear teeth and are connected with the transmission belt 205.
The left eccentric sleeve 101 is internally provided with a left eccentric sleeve eccentric inner hole 1011, the diameter of the left eccentric sleeve eccentric inner hole 1011 is the same as the diameter of a long shaft 1021 of the belt pulley sleeve, the eccentric amount of the eccentric inner hole 1011 is the same as the eccentric amount of the eccentric shaft eccentric part, the diameter of the outer circle of the left eccentric sleeve 101 is the same as the diameter of an inner hole 4011 of the left support, the top end of the left eccentric sleeve is provided with a left eccentric sleeve rectangular groove 1012 which is matched and installed with a left support rectangular slide block 4012 on the inner hole of the left support, the top end of the left eccentric sleeve 101 is provided with a left eccentric sleeve threaded hole 1013, and a set screw is screwed into the left eccentric sleeve threaded hole 1013, so that the left eccentric sleeve 101 and the long shaft 1021 of the belt pulley sleeve are tightly connected.
Further, the position of the left eccentric sleeve rectangular groove 1012 on the top end of the left eccentric sleeve 101 is on the same straight line with the circle center of the outer circle of the left eccentric sleeve 101 and the circle center of the left eccentric sleeve eccentric inner hole 1011, and the position of the left eccentric sleeve rectangular groove 1012 is on both sides of the circle center of the outer circle of the left eccentric sleeve 101, the left support rectangular slide block 4012 on the left support inner hole 4011 is on the top end of the left support inner hole 4011, so that when the left eccentric sleeve 101 is installed in the left support 401, the circle center of the left eccentric sleeve eccentric inner hole 1011 is right below the circle center of the outer circle of the left eccentric sleeve 101, and when the circle center of the first eccentric shaft part 502 or the second eccentric shaft part 503 rotates to the highest point, the circle center of the first eccentric shaft part 502 or the second eccentric shaft part 503 can coincide with the circle center of the outer circle of the left eccentric sleeve 101, thereby realizing accurate centering of the two parts.
The right eccentric sleeve 103 is internally provided with a right eccentric sleeve eccentric inner hole 1031, the diameter of the right eccentric sleeve eccentric inner hole 1031 is the same as that of the eccentric shaft stub end 504, the eccentric amount of the right eccentric sleeve eccentric inner hole 1031 is the same as that of the eccentric shaft eccentric part, the diameter of the outer circle of the right eccentric sleeve 103 is the same as that of the right support inner hole 4021, the top end of the right eccentric sleeve is provided with a right eccentric sleeve rectangular groove 1022 which is matched with a right support rectangular sliding block 4022 on the right support inner hole, the top end of the right eccentric sleeve 103 is provided with a right eccentric sleeve threaded hole 1033, and a set screw is screwed into the right eccentric sleeve threaded hole 1033, so that the right eccentric sleeve 103 and the eccentric shaft stub end 504 can be tightly connected.
Further, the position of the right eccentric sleeve rectangular groove 1032 on the top end of the right eccentric sleeve 103 is on the same straight line with the circle center of the outer circle of the right eccentric sleeve 103 and the circle center of the right eccentric sleeve eccentric inner hole 1031, and the position of the right eccentric sleeve rectangular groove 1032 and the circle center of the right eccentric sleeve eccentric inner hole 1031 are positioned at two sides of the circle center of the outer circle of the right eccentric sleeve 103, the right support rectangular slide block 4022 on the right support inner hole 4021 is positioned at the top end of the right support inner hole 4021, so that when the right eccentric sleeve 103 is installed in the right support 402, the circle center of the right eccentric sleeve eccentric inner hole 1031 is positioned under the circle center of the outer circle of the right eccentric sleeve 103, and when the circle center of the first eccentric shaft part 502 or the second eccentric shaft part 503 rotates to the highest point, the circle center of the first eccentric shaft part 502 or the second eccentric shaft part 503 can coincide with the circle center of the outer circle of the right eccentric sleeve 103, thereby realizing accurate centering.
Further, the center heights of the left support inner hole 4011 and the right support inner hole 4021 are the same, so that the left eccentric sleeve 101, the pulley sleeve 102, the eccentric shaft 5 and the right eccentric sleeve 103 can be horizontally placed in the left support inner hole 4011 and the right support inner hole 4021, and the pulley sleeve 102 and the eccentric shaft 5 after being fastened and connected can rotate around the shaft.
A contour sensor mounting hole 4024 is formed right above the right support rectangular sliding block 4022 on the right support inner hole 4021, and the height of the contour sensor mounting hole 4024 is consistent with the maximum height which can be reached by the eccentric part of the eccentric shaft, so that the contour sensor 203 can accurately identify the maximum height reached by the eccentric part of the eccentric shaft, and high-precision centering of the eccentric shaft and the eccentric sleeve is realized.
The center of the belt wheel 204 is provided with a belt wheel through hole 2043, the diameter of the belt wheel through hole is the same as that of the output shaft of the servo motor, the left end of the belt wheel is provided with belt wheel gear teeth 2041, and the belt wheel gear teeth 2041 are rectangular gear teeth and are sleeved with a transmission belt; the right end of the belt pulley 204 is provided with a belt pulley short shaft, the belt pulley short shaft is provided with a belt pulley threaded hole 2042, and a set screw is screwed into the belt pulley threaded hole 2042, so that the belt pulley 204 and an output shaft of the servo motor can be fastened and connected.
The drive belt 205 is mounted in cooperation with pulley sleeve gear teeth 1023 and pulley gear teeth 2041.
As shown in fig. 1 to 10, the specific use flow of the eccentric shaft and eccentric sleeve automatic centering device used in the ultrasonic rolling process in this embodiment is as follows:
s1: the eccentric shaft end 501 is arranged in the inner hole 1024 of the pulley sleeve, and the set screw is screwed into the threaded hole 1022 of the eccentric sleeve and is screwed down, so that the eccentric shaft 5 is tightly connected with the pulley sleeve 102;
s2: the left eccentric sleeve 101 is arranged in the left support 401, the right eccentric sleeve 103 is arranged in the right support 402, the bolt at the bottom of one support is unscrewed, and the support is moved outwards;
s3: the driving belt 205 is sleeved on the pulley sleeve gear tooth 1023, the eccentric shaft 5 and the pulley sleeve 102 which are tightly connected together are respectively installed in the right eccentric sleeve eccentric inner hole 1031 and the left eccentric sleeve eccentric inner hole 1011, the support position is adjusted to ensure that the tightness of the driving belt 205 is proper, and the support bolt is screwed, so that the initial installation of the eccentric shaft eccentric sleeve is completed;
s4: starting the servo motor 202 to drive the eccentric shaft 5 to rotate in the inner holes of the two eccentric sleeves, and when the contour sensor 203 detects that the outer circle of the first eccentric part 502 or the second eccentric part 503 of the eccentric shaft rotates to the highest point, sending a signal to the control box 201, and outputting a control signal to the servo motor 202 by the control box 201 to stop the servo motor 202 from rotating, so that the high-precision centering of the eccentric shaft 5 and the eccentric sleeves is realized;
s5: the set screw is screwed into the left eccentric sleeve threaded hole 1013 and the right eccentric sleeve threaded hole 1033 and is screwed, so that the left eccentric sleeve 101 and the right eccentric sleeve 103 are tightly connected with the tightly connected eccentric shaft 5 and the belt pulley sleeve 102;
s6: the bolts at the bottom of the support are unscrewed, the support is moved, the eccentric shaft and the eccentric sleeve after centering are taken down for being used in the subsequent ultrasonic rolling process, and a uniform reinforcing layer can be obtained on the surface of the eccentric part of the eccentric shaft.
In summary, the utility model can simply and conveniently realize the preliminary centering of the left and right eccentric sleeves through the matching structure of the left and right supports and the left and right eccentric sleeves; the eccentric shafts and the eccentric sleeves are arranged on the base in a left-right adjustable manner through the support, so that the eccentric shafts and the eccentric sleeves before and after centering can be conveniently installed and taken out; the centering precision of the eccentric part of the eccentric shaft and the left and right eccentric sleeves can be accurately ensured through the interaction of the controller, the profile sensor and the servo motor in the control system, and a uniform reinforcing layer can be rolled out of the eccentric part of the eccentric shaft in the subsequent ultrasonic rolling reinforcing process, so that the wear resistance and fatigue resistance of the eccentric shaft are improved, and even the reliability and service life of the whole RV reducer are improved.
The above examples are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present utility model should be made in the equivalent manner, and the embodiments are included in the protection scope of the present utility model.

Claims (10)

1. The automatic centering device for the eccentric shaft and the eccentric sleeve in the ultrasonic rolling process is characterized by comprising a clamp assembly, a control system, a base, a support and the eccentric shaft;
the eccentric shaft comprises a long shaft end of the eccentric shaft, a first eccentric part of the eccentric shaft, a second eccentric part of the eccentric shaft and a short shaft end of the eccentric shaft;
the clamp assembly comprises a left eccentric sleeve, a belt pulley sleeve and a right eccentric sleeve, wherein the first end of the belt pulley sleeve is connected with the long shaft end of the eccentric shaft, the left eccentric sleeve is connected with the second end of the belt pulley sleeve, and the right eccentric sleeve is connected with the short shaft end of the eccentric shaft;
the support comprises a left support and a right support, the left support and the right support are both arranged on the base, the left support is connected with the left eccentric sleeve, and the right support is connected with the right eccentric sleeve;
the control system comprises a control box, a servo motor, a profile sensor, a belt wheel and a driving belt, wherein the control box and the servo motor are installed on a base, the belt wheel is connected with the servo motor, the driving belt is connected with a belt wheel sleeve and the belt wheel, and the profile sensor is installed on a right support.
2. The automatic centering device for the eccentric shaft and the eccentric sleeve in the ultrasonic rolling process according to claim 1, wherein a belt pulley sleeve long shaft is arranged at the first end of the belt pulley sleeve, and the belt pulley sleeve long shaft is connected with the left eccentric sleeve; the second end of the pulley sleeve is internally provided with a pulley sleeve inner hole, and the pulley sleeve inner hole is connected with the long shaft end of the eccentric shaft.
3. The automatic centering device for the eccentric shaft and the eccentric sleeve in the ultrasonic rolling process according to claim 1, wherein the outer circular surface of the pulley sleeve is provided with a pulley sleeve threaded hole and pulley sleeve gear teeth, the pulley sleeve threaded hole is tightly connected with the long shaft end of the eccentric shaft by adopting a set screw, and the pulley sleeve gear teeth are connected with a transmission belt.
4. The automatic centering device for the eccentric shaft and the eccentric sleeve in the ultrasonic rolling process according to claim 1, wherein a left eccentric sleeve eccentric inner hole is formed in the left eccentric sleeve, and the left eccentric sleeve eccentric inner hole is connected with a belt wheel sleeve; the left eccentric sleeve is characterized in that a left eccentric sleeve rectangular groove and a left eccentric sleeve threaded hole are formed in the top end of the left eccentric sleeve, the left eccentric sleeve rectangular groove is inserted into the left support and connected with the left support, and the left eccentric sleeve threaded hole is fixedly connected with the long shaft of the belt wheel sleeve by a set screw.
5. The automatic centering device for the eccentric shaft and the eccentric sleeve in the ultrasonic rolling process according to claim 1, wherein a right eccentric sleeve eccentric inner hole is formed in the right eccentric sleeve, and the right eccentric sleeve eccentric inner hole is connected with the short shaft end of the eccentric shaft; the right eccentric sleeve is characterized in that a right eccentric sleeve rectangular groove and a right eccentric sleeve threaded hole are formed in the top end of the right eccentric sleeve, the right eccentric sleeve rectangular groove is inserted into the right support and connected with the right support, and the right eccentric sleeve threaded hole is fixedly connected with the short shaft end of the eccentric shaft by a set screw.
6. The automatic centering device for the eccentric shaft and the eccentric sleeve in the ultrasonic rolling process according to claim 1, wherein a left support inner hole is formed in one end of the left support, a left support rectangular sliding block is arranged at the top end of the left support inner hole, and the left support inner hole and the left support rectangular sliding block are connected with the left eccentric sleeve in a matching manner;
the right support inner hole is formed in one end of the right support, a right support rectangular sliding block is arranged at the top end of the right support inner hole, and the right support inner hole and the right support rectangular sliding block are connected with a right eccentric sleeve in a matched mode.
7. The automatic centering device for the eccentric shaft and the eccentric sleeve in the ultrasonic rolling process according to claim 1, wherein a contour sensor mounting hole is formed above the inner hole of the right support, and the contour sensor is mounted in the contour sensor mounting hole.
8. The automatic centering device for the eccentric shaft and the eccentric sleeve in the ultrasonic rolling process according to claim 1, wherein a left support rectangular through hole and a right support rectangular through hole are respectively formed in two sides of the bottom of the left support and the bottom of the right support, the left support rectangular through hole and the right support rectangular through hole are connected with the base through bolts, and the left support and the right support are adjusted through the left support rectangular through hole and the right support rectangular through hole.
9. The automatic centering device for the eccentric shaft and the eccentric sleeve in the ultrasonic rolling process according to claim 1, wherein a belt wheel through hole is formed in the center of the belt wheel, and the belt wheel through hole is connected with an output shaft of a servo motor; one end of the belt wheel is provided with belt wheel teeth which are sleeved with the driving belt; the other end of the belt wheel is provided with a belt wheel short shaft, the top end of the belt wheel short shaft is provided with a belt wheel threaded hole, and the belt wheel threaded hole is fixedly connected with an output shaft of the servo motor by a set screw.
10. The automatic centering device for the eccentric shaft and the eccentric sleeve in the ultrasonic rolling process according to claim 1, wherein the servo motor and the control box are fixedly connected with the base by adopting screws.
CN202321963775.XU 2023-07-25 2023-07-25 Automatic centering device for eccentric shaft and eccentric sleeve during ultrasonic rolling process Active CN220637183U (en)

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Application Number Priority Date Filing Date Title
CN202321963775.XU CN220637183U (en) 2023-07-25 2023-07-25 Automatic centering device for eccentric shaft and eccentric sleeve during ultrasonic rolling process

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Application Number Priority Date Filing Date Title
CN202321963775.XU CN220637183U (en) 2023-07-25 2023-07-25 Automatic centering device for eccentric shaft and eccentric sleeve during ultrasonic rolling process

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117020749A (en) * 2023-07-25 2023-11-10 华南理工大学 Automatic centering device and method for eccentric shaft and eccentric sleeve during ultrasonic rolling process

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117020749A (en) * 2023-07-25 2023-11-10 华南理工大学 Automatic centering device and method for eccentric shaft and eccentric sleeve during ultrasonic rolling process

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