CN112571055A - Planet row stacking assembly process and equipment - Google Patents

Planet row stacking assembly process and equipment Download PDF

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Publication number
CN112571055A
CN112571055A CN202011586154.5A CN202011586154A CN112571055A CN 112571055 A CN112571055 A CN 112571055A CN 202011586154 A CN202011586154 A CN 202011586154A CN 112571055 A CN112571055 A CN 112571055A
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China
Prior art keywords
shaft
planet
pin
gasket
supporting
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Granted
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CN202011586154.5A
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Chinese (zh)
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CN112571055B (en
Inventor
郑健
李文冠
李健
张启飞
温宪志
齐杰
张建坤
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Shengrui Transmission Co Ltd
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Shengrui Transmission Co Ltd
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Publication of CN112571055A publication Critical patent/CN112571055A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P21/00Machines for assembling a multiplicity of different parts to compose units, with or without preceding or subsequent working of such parts, e.g. with programme control
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H57/00General details of gearing
    • F16H2057/0062Tools specially adapted for assembly of transmissions
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50Manufacturing or production processes characterised by the final manufactured product

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automatic Assembly (AREA)

Abstract

The invention relates to the technical field of transmissions, and discloses a planet row stacking assembly process and equipment, wherein the process comprises the following steps: s1: pressing an inner sleeve and a roller pin of the roller bearing into a shaft hole of the star wheel to form a first planet wheel assembly; s2: detecting the first planet wheel assembly, and after confirming that no drop stitch exists, placing an upper gasket and a lower gasket on the upper end face and the lower end face of the first planet wheel assembly to form a second planet wheel assembly; s3: detecting a second planet wheel assembly, and assembling the second planet wheel assembly on a planet carrier to form a planet carrier assembly after confirming that the stacking posture is correct; s4: and assembling a pin shaft for the planet carrier assembly. The equipment for realizing the process comprises a first station tool, a second station tool, a third station tool, a fourth station tool, a first pneumatic clamping jaw and a second pneumatic clamping jaw. The process sequence is reasonable, the automatic detection can be realized by combining the equipment operation, the needle bearing missing needle is prevented, and the risks of wrong and missing installation of other parts and the like can be avoided.

Description

Planet row stacking assembly process and equipment
Technical Field
The invention relates to the technical field of transmissions, in particular to a planet row stacking assembly process and equipment.
Background
The planet row of 8AT gearbox adopts 4 planet wheels and sun gear intermeshing's special design structure, and assembly complexity and required precision all are higher than other gearboxes, and the assembly adopts manual assembly more, because manual operation fills up bearing and other parts and easily neglected loading, misloading etc. seriously influences the performance and the durability of gearbox.
Disclosure of Invention
The invention provides a planet row stacking assembly process and equipment, which solve the problem that manual assembly in the prior art is easy to neglect assembly and misassembly, and are high in assembly efficiency and reliable in assembly quality.
The technical scheme of the invention is realized as follows: a planet row stacking assembly process comprises the following steps:
s1: pressing an inner sleeve and a roller pin of the roller bearing into a shaft hole of the star wheel to form a first planet wheel assembly;
s2: detecting the first planet wheel assembly, and after confirming that no drop stitch exists, placing an upper gasket and a lower gasket on the upper end face and the lower end face of the first planet wheel assembly to form a second planet wheel assembly;
s3: detecting a second planet wheel assembly, and assembling the second planet wheel assembly on a planet carrier to form a planet carrier assembly after confirming that the stacking posture is correct;
s4: and assembling a pin shaft for the planet carrier assembly.
Preferably, step S1 includes
S11: the first pneumatic clamping jaw moves to the position right above the first pneumatic supporting table, and the first pneumatic clamping jaw is in a closed state;
s12: the auxiliary supporting sleeve rises until the upper end face of the auxiliary supporting sleeve is tightly attached to the lower side face of the first pneumatic clamping jaw (91), and the supporting and positioning shaft extends into the positioning groove of the first pneumatic clamping jaw;
s13: placing the planet wheel in the positioning groove and sleeving the planet wheel outside the supporting and positioning shaft;
s14: placing a needle bearing on the upper end face of the planet wheel, supporting the needle bearing by a shaft shoulder of a supporting and positioning shaft, and extending the upper end of the supporting and positioning shaft into the inner sleeve;
s15: the first press-fitting head descends to apply downward pressure to the inner sleeve and the roller pin; the supporting and positioning shaft and the first press-fitting head synchronously descend until the inner sleeve and the roller pin are pressed in place;
s16: when the inner sleeve and the roller pin are detected to be pressed in place, the auxiliary supporting sleeve descends to reset, and the first pressing head ascends to reset.
Preferably, step S2 includes
S21: placing the lower gasket into a gasket groove of the lower gasket positioning support platform;
s22: the gasket supporting shaft moves upwards until the upper end of the gasket supporting shaft extends into the shaft sleeve and the shaft shoulder of the gasket supporting shaft is positioned at the lower side of the first pneumatic clamping jaw;
s23: the first pneumatic clamping jaw is opened, and the first planet wheel assembly is adsorbed by the gasket supporting shaft;
s24: the gasket supporting shaft continues to move upwards until the first planet wheel assembly is positioned on the moving track of the second pneumatic clamping jaw, and an upper gasket is placed on the upper end face of the planet wheel;
s25: pushing the second pneumatic clamping jaw, and enabling the second planet wheel assembly to enter the clamping cavity;
s26: the gasket back shaft resets, and check out test set detects second planet wheel subassembly and piles up whether correct.
Preferably, step S3 includes
S31: mounting the planet carrier on a first planet carrier support platform;
s32: pushing the second planet wheel component into the planet wheel mounting position of the planet carrier through a push plate;
s33: placing a guide pin at the upper end of the inner sleeve, controlling the second press-fitting head to move downwards, applying pressure at the upper end of the guide pin until the inner sleeve falls off, and lifting and resetting the second press-fitting head;
s34: controlling the guide pin to fall, and placing the planet wheel shaft on the upper end surface of the guide pin when the upper end of the guide pin enters the shaft hole of the planet wheel; then the guide pin and the planet gear shaft descend together until the planet gear shaft is installed in place;
s35: the guide pin maintains the supporting state of the planet wheel shaft, and an auxiliary pin is inserted into a pin hole of the planet carrier; the guide pin is then removed.
As a preferable technical scheme, when a plurality of planet wheels are needed on the planet carrier, the steps S1-S3 are repeatedly executed, and the stacked second planet wheel assemblies are sequentially mounted on the planet carrier; and then, the step S4 is repeatedly executed to complete the installation of all the pins on one planet carrier.
Preferably, in step S4, the auxiliary pin in the pin hole is pulled out, and then the second carrier support table is rotated so that the pin hole is aligned with the pin shaft auxiliary tool, and the pin shaft is inserted into the pin hole.
The equipment for realizing the planet row stacking assembly process comprises
The first station tool is used for installing an inner sleeve and a roller pin of the roller pin bearing into a shaft hole of the planet wheel to form a first planet wheel assembly;
the second station tool is used for detecting whether the first planet wheel assembly has missed stitches or not, assembling the upper gasket, the lower gasket and the first planet wheel assembly to form a second planet wheel assembly, and detecting whether the second planet wheel assembly is correctly stacked or not;
the third station tool is used for assembling the second planet wheel assembly and the planet carrier;
the fourth station tool is used for installing the pin shaft into the pin hole of the planet carrier;
the first pneumatic clamping jaw is used for supporting the planet wheel and transferring the first planet wheel assembly from the first station tool to the second station tool;
and the second pneumatic clamping jaw is used for transferring the second planetary wheel assembly from the second station tool to the fourth station tool.
As a preferred technical scheme, the first station tool comprises a first manual press and a first pneumatic support table; the first pneumatic support platform comprises an auxiliary support sleeve, a support positioning shaft and a compression spring; the auxiliary supporting sleeve can lift relative to the first pneumatic clamping jaw; a shaft mounting hole is arranged in the middle of the upper end surface of the auxiliary support sleeve, and the lower end of the support positioning shaft is fixed in the shaft mounting hole through a compression spring; the supporting and positioning shaft is a stepped shaft with a small upper end and a large lower end.
According to the preferable technical scheme, the second station tool comprises a gasket mounting table and detection equipment;
the gasket mounting table comprises a lower gasket positioning support table, and a gasket groove for containing a lower gasket is arranged on the upper end surface of the lower gasket positioning support table; the bottom wall of the gasket groove is provided with a guide hole, a gasket support shaft is arranged in the guide hole, the gasket support shaft can move up and down relative to the guide hole, and the gasket support shaft has magnetism; the gasket supporting shaft is a stepped shaft, the outer diameter of the upper end of the gasket supporting shaft is smaller than the inner diameter of the lower gasket, and the outer diameter of the lower end of the gasket supporting shaft is larger than the inner diameter of the lower gasket;
the detection equipment comprises two industrial cameras which are used for photographing the upper end face and the lower end face of the first planet wheel assembly respectively.
As a preferred technical scheme, the third station tooling at least comprises a first planet carrier support platform, a second manual press, a guide pin and an auxiliary pin; the first planet carrier support platform comprises a first rotary support seat, and the first rotary support seat is rotatably arranged on the workbench; an avoiding part is arranged on the first rotary supporting seat, and when the first rotary supporting seat is used, the shaft hole of the planet wheel corresponds to the avoiding part in position and provides a falling channel for the inner sleeve; the outer diameter of the guide pin is larger than the inner diameter of the inner sleeve and smaller than the outer diameter of the inner sleeve; the auxiliary pin is matched with the pin hole;
the fourth station tool comprises a second planet carrier support table and a pin shaft auxiliary tool; the second planet carrier support table is rotatably arranged on the workbench through a rotating seat; the pin shaft auxiliary tool is located on one side of the second planet carrier supporting table and used for installing the pin shaft into the pin hole.
The planet row stacking assembly process is reasonable in process sequence arrangement, automatic detection can be realized by combining equipment operation, needle missing of the needle bearing is prevented, and missing installation of the upper gasket and the lower gasket can be avoided; and the risks of needle scattering due to full rolling needles, missed needle feeding, missed needle installation of other parts and the like caused by manual operation are avoided.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of a planetary row assembly apparatus;
FIG. 2 is a schematic structural diagram of a planet wheel;
FIG. 3 is a schematic structural view of the needle bearing;
FIG. 4 is a top view of FIG. 3;
FIG. 5 is a schematic view of a first station tool in use;
FIG. 6 is a schematic view of a first pneumatic jaw;
FIG. 7 is a schematic view of a second station tooling in use;
FIG. 8 is a schematic view of a second pneumatic jaw in use;
FIG. 9 is a schematic view of a third station tooling in use;
fig. 10 is a schematic view of a use state of the fourth station tool.
In the figure, the position of the upper end of the main shaft,
1-a workbench;
2-a first station tooling; 21-a first manual press; 22-a first pneumatic support table; 221-an auxiliary support sleeve; 222-a compression spring; 223-supporting the positioning shaft;
3-a second station tool; 31-a gasket mount; 311-lower pad positioning support table; 312-pad support shaft;
4-a third station tooling; 41-a second manual press; 42-a first planet carrier support table; 421-a first rotary supporting seat; 422-auxiliary handle; 423-avoiding part; 43-positioning the cylinder; 44-a guide pin;
5-a fourth station tooling; 51-a rotating seat; 52-a second planet carrier support table; 53-auxiliary tooling for the pin shaft; 531-pin shaft accommodating cavity; 532-push rod;
6-a planet carrier; 61-pin holes;
7-a planet wheel;
8-needle roller bearing; 81-coat; 82-inner sleeve; 83-rolling needles;
91-a first pneumatic jaw; 911-a first jaw; 92-a second pneumatic jaw; 921-a second jaw; 922-a clamping cavity; 923-push plate;
11-lower gasket.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments, and the description of the embodiments is provided to help understanding of the present invention, but not to limit the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
A planet row stacking assembly process comprises the following steps:
s1: the inner sleeve 82 and the needle roller 83 of the needle bearing 8 are press-fitted into the axial hole of the star wheel 7 to form a first planetary wheel assembly.
S11: the first pneumatic clamping jaw 91 moves to the position right above the first pneumatic supporting table 22, and the first pneumatic clamping jaw 91 is in a closed state;
s12: the auxiliary supporting sleeve 221 is driven by the cylinder to ascend until the upper end face of the auxiliary supporting sleeve 221 clings to the lower side face of the first pneumatic clamping jaw 91, and supports the first pneumatic clamping jaw 91; the supporting and positioning shaft 223 extends into the positioning groove of the first pneumatic clamping jaw 91;
s13: the planet wheel 7 is placed in the positioning groove of the first pneumatic clamping jaw 91 and is sleeved outside the supporting positioning shaft 223;
s14: placing the needle bearing 8 on the upper end surface of the planet wheel 7, and supporting the needle bearing 8 by a shaft shoulder supporting the positioning shaft 223; the upper end of the supporting and positioning shaft 223 extends into the inner sleeve 82 to position the same;
s15: the first press-fitting head 211 descends to apply downward pressure to the inner race 82 and the needle roller 83; the compression spring 222 at the lower side of the support positioning shaft 223 is compressed, and the support positioning shaft 223 descends synchronously with the first press-fitting head 211 until the inner sleeve 82 and the roller pin 83 are pressed in place;
s16: when the compression spring 222 reaches the set compression amount, the auxiliary support sleeve 221 is lowered and returned, and the first press-fitting head 211 is raised and returned. The position where the auxiliary support sleeve 221 is lowered to complete the resetting is used for the purpose of not blocking the transverse movement of the first pneumatic clamping jaw 91, and the specific position is set by the actual equipment; the ascending and resetting position of the first press-fitting head 211 also aims at not influencing the transverse movement of the first pneumatic clamping jaw 91 and facilitating the next placement of the planet wheel 7 and the needle bearing 8 on the first pneumatic clamping jaw 91, and the specific position is based on the actual setting of the equipment.
After the assembly of the first planetary gear assembly is completed, the first pneumatic clamping jaw 91 conveys the first planetary gear assembly to the second station tooling 3.
S2: detecting the first planet wheel assembly, and after confirming that no dropped stitch exists, placing an upper gasket and a lower gasket 11 on the upper end surface and the lower end surface of the first planet wheel assembly to form a second planet wheel assembly;
photographing the upper end surface and the lower end surface of the first planet wheel assembly by two industrial cameras respectively positioned at the upper side and the lower side of the first pneumatic clamping jaw 91 to confirm that no missing stitch exists; of course, the detection process may also be performed manually. Since the first pneumatic clamping jaw 91 only supports part of the needle roller 83, part of the lower needle roller 83 is still exposed, and whether the lower needle roller 83 leaks or not can be checked through the detection equipment 32 or manually; and the upper roller needles are completely exposed outside at the moment, so that the inspection is more convenient.
S21: placing the lower gasket 11 to the gasket groove of the lower gasket positioning support table 311;
s22: the gasket support shaft 312 moves upwards under the driving of the cylinder until the gasket support shaft extends into the shaft sleeve 82 and the shaft shoulder of the gasket support shaft is positioned at the lower side of the first pneumatic clamping jaw 91;
s23: the first pneumatic clamping jaw 91 is opened to provide a channel for the upward movement of the gasket support shaft 312, and after the first pneumatic clamping jaw 91 is opened, the first planetary wheel assembly is adsorbed by the gasket support shaft 312;
s24: the pad supporting shaft 312 continues to move upwards until the first planetary gear assembly moves to the moving track of the second pneumatic clamping jaw 92, and an upper pad is placed on the upper end face of the planetary gear 7;
s25: pushing second pneumatic clamping jaw 92 and the second planetary wheel assembly into clamping cavity 922;
s26: the pad support shaft 312 is reset; the detection device 32 detects whether the second planetary wheel assembly stack is correct. The replacement of the pad support shaft 312 is to return the pad support shaft 312 to the lower pad positioning support table 311 to prepare for the next placement of the lower pad 11.
S3: detecting the second planet wheel assembly, after confirming that the stacking posture is correct, conveying the second planet wheel assembly to a third tool by using a second pneumatic clamping jaw 92, and assembling the second planet wheel assembly on a planet carrier 6 to form a planet carrier assembly;
s31: mounting the planet carrier 6 on the first planet carrier support table 42;
s32: pushing the second planet wheel assembly into the planet wheel mounting position of the planet carrier 6 through the push plate 923;
s33: placing the guide pin 44 at the upper end of the inner sleeve 82, controlling the second press-fitting head on the second manual press 41 to move downwards, and applying pressure at the upper end of the guide pin 44 until the inner sleeve 82 falls off;
s34: the second press-fitting head is lifted and reset to provide a space for placing the planet wheel shaft; the guide pin 44 is controlled to fall, and when the upper end of the guide pin 44 enters the shaft hole of the planet wheel 7, the planet wheel shaft is placed on the upper end surface of the guide pin 44; then the guide pin 44 descends together with the planet shaft until the planet shaft is installed in place;
s35: the guide pin 44 maintains the support state of the planetary gear shaft, and an auxiliary pin is inserted into the pin hole 61 of the planet carrier 6; the guide pin 44 is then removed.
In steps S33 and S34, the fall of the guide pin 44 may be manually controlled, or the positioning cylinder 43 may be passed. When the positioning cylinder 43 is used to assist the assembly, the positioning cylinder 43 may position the second planetary wheel assembly in step S32, for example, the positioning rod of the positioning cylinder 43 extends into the inner sleeve 82 to position the second planetary wheel assembly.
When a plurality of planet wheels 7 are needed on the planet carrier 6, the first planet carrier support platform 42 is rotated, so that the idle planet wheel mounting positions of the planet carrier 6 are opposite to the moving track of the second pneumatic clamping jaw 92; and then, repeating the steps S1-S3, and sequentially mounting the four groups of stacked second planet wheel assemblies on the planet carrier 6.
After the planet carrier assembly is assembled, the planet carrier assembly is transferred to a fourth station tooling 5 manually or by a manipulator.
S4: assembling a pin shaft for the planet carrier assembly;
and pulling out the auxiliary pin in the pin hole 61, and then rotating the second planet carrier support table 52, so that the pin hole 61 where the auxiliary pin is pulled out is aligned with the pin shaft auxiliary tool 53, and the pin shaft is installed in the pin hole.
When the planet carrier 6 has a plurality of planet wheels 7, the step S4 is repeatedly executed to complete the installation of all the pins on one planet carrier 6.
The equipment for realizing the planet row stacking assembly process is used for assembling the needle roller bearing 8, the planet wheel 7, the lower gasket 11, the upper gasket, the planet wheel shaft, the planet carrier 6 and the pin shaft.
As shown in fig. 3 and 4, the needle roller bearing 8 includes an inner sleeve 82, an outer sleeve 81, and a needle roller 83. The kingpin 83 of the needle bearing 8 used in the present application is provided with upper and lower layers, which are separated by a spacer in the middle.
As shown in fig. 1, the apparatus includes a first station tooling 2, a second station tooling 3, a third station tooling 4, and a fourth station tooling 5, as well as a first pneumatic jaw 91 for transferring a first planetary assembly from the first station tooling 2 to the second station tooling 3 and a second pneumatic jaw 92 for transferring a second planetary assembly from the second station tooling 3 to the fourth station tooling 5.
As shown in fig. 1 and 5, the first station tool 2 includes a first pneumatic support table 22 and a first manual press 21. The first hand press 21 is a prior art, and is not modified and will not be described herein. The first pneumatic support platform 22 includes an auxiliary support sleeve 221, a support positioning shaft 223 and a compression spring 222, wherein the auxiliary support sleeve 221 is driven by an air cylinder to lift, and when the auxiliary support sleeve is lifted to a proper position, the auxiliary support sleeve is supported on the lower side of the first pneumatic clamping jaw 91 to counteract the acting force of the first press-fitting head 211 on the first pneumatic clamping jaw 91. The upper end surface of the auxiliary support sleeve 221 is centrally provided with a shaft mounting hole, and the support positioning shaft 223 is fixed in the shaft mounting hole through a compression spring 222. The supporting and positioning shaft 223 is a stepped shaft with a small upper end and a large lower end, and the upper end of the supporting and positioning shaft 223 extends into the inner sleeve 82 to play a role in positioning the needle roller bearing 8; in the press-fitting process of the needle bearing 8 and the planet wheel 7, the needle roller 83 is supported by the shaft shoulder for supporting the positioning shaft 223, so that the needle rollers in the lower needle group are prevented from scattering in the press-fitting process.
As shown in fig. 6, the first pneumatic clamping jaw 91 comprises two first clamping jaws 911, the two first clamping jaws 911 can be butted and separated, and after being butted, a positioning groove is formed in the middle of the first pneumatic clamping jaw 91 for accommodating the planet wheel 7; a through hole is arranged on the bottom wall of the positioning groove, and the inner diameter of the through hole is smaller than the inner diameter of the outer sleeve 81 and larger than the outer diameter of the inner sleeve 82; the requirement of the first pneumatic clamping jaw 91 for supporting the planet wheel 7 is met, and the subsequent leak-proof detection of the needle roller 83 is not influenced.
The outer diameter of the first press-fitting head 211 of the first hand press 21 is smaller than the inner diameter of the outer housing 81 and larger than the outer diameter of the inner housing 82. When the planetary gear set is used, the roller pin 83, the inner sleeve 82 and the outer sleeve 81 can be separated, the roller pin 83 and the inner sleeve 82 are finally installed in the shaft hole of the planetary gear 7, and the outer sleeve 81 is detached for reuse.
And (3) finishing the detection of the leak-proof needle of the first planetary wheel assembly, the installation of the gasket and the detection of whether the superposition of the second planetary wheel assembly is correct or not at the second station tooling 3.
As shown in fig. 1 and 7, the second station tooling 3 includes a pad mounting table 31 and a detection device 32.
The pad mounting table 31 includes a lower pad positioning support table 311, and a pad groove for accommodating the lower pad 11 is provided on an upper end surface of the lower pad positioning support table 311. The bottom wall of the gasket groove is provided with a guide hole, a gasket support shaft 312 is arranged in the guide hole, the gasket support shaft 312 can move up and down relative to the guide hole, and the gasket support shaft 312 has magnetism; the spacer support shaft 312 is a stepped shaft, the outer diameter of the upper end thereof is smaller than the inner diameter of the lower spacer 11, and the outer diameter of the lower end thereof is larger than the inner diameter of the lower spacer 11; a shoulder formed at an upper portion thereof to be supported at a lower side of the lower pad 11 when the pad supporting shaft 312 is raised; the upper end of the pad support shaft 312 is positioned in cooperation with the inner sleeve 82.
As shown in fig. 8, the second pneumatic clamping jaw 92 includes second clamping jaws 921 arranged up and down, a clamping cavity 922 for accommodating the planet wheel 7, the lower pad 11 and the upper pad is formed between the two second clamping jaws 921, a push plate 923 is arranged on one side of the clamping cavity 922, and the push plate 923 is driven by a cylinder; when the planet wheel 7 is located in the clamping cavity 922, the planet wheel 7 can be pushed out of the clamping cavity 922 by the push plate 923.
The inspection equipment 32 includes two industrial cameras for respectively photographing the upper end surface and the lower end surface of the first planetary gear assembly, and the system processes the photographing and judges whether miss stitches occur. The industrial camera and the detection system adopt the Kangnai vision industrial camera and a system matched with the Kangnai vision industrial camera, and are not explained in the prior art. In order to ensure the shooting definition, a light supplement lamp is fixed on the workbench 1.
And (5) finishing the installation of the planet wheel shaft on the third station tool 4. As shown in fig. 9, the third station tooling 4 includes at least a first carrier support table 42 and a second manual press 41.
The first planet carrier support platform 42 comprises a first rotary support seat 421, and the first rotary support seat 421 is rotatably installed on the workbench 1; a plurality of auxiliary handles 422 are uniformly distributed on the outer circumferential surface of the first rotary support seat 421, and are used for controlling the rotation angle of the first rotary support seat 421. The first rotary support seat 421 is provided with an avoiding portion 423, and when the first rotary support seat is used, the shaft hole of the planet wheel 7 corresponds to the avoiding portion 423 in position, so that a falling channel is provided for the inner sleeve 82.
The process is also applied to a guide pin 44, the cross section of the guide pin 44 being circular; the outer diameter of the guide pin 44 is greater than the inner diameter of the inner housing 82 and less than the outer diameter of the inner housing 82.
During assembly, the guide pin 44 is firstly placed at the upper end of the inner sleeve 82, the second manual press 41 applies pressure to the guide pin 44 and the inner sleeve 82, the inner sleeve 82 is ejected out of the planet wheel 7, and the guide pin 44 is temporarily left in the planet wheel 7 to position the roller pin 83; the planet axle is then placed over the top of the redirect pin 44 so that the redirect pin 44 descends with the planet axle until the planet axle is installed. When the auxiliary pin is not installed, the support of the guide pin on the planet wheel shaft is maintained, and the planet wheel shaft is prevented from falling off from the shaft hole; after the auxiliary pin is inserted into the shaft hole of the carrier, the guide pin 44 can be removed.
In the above process, the guide pin 44 may be manually supported and controlled to descend, or a positioning cylinder 43 as shown in fig. 9 may be provided, and the guide pin 44 may be supported and controlled to descend by the positioning cylinder 43.
As shown in fig. 10, the fourth station tooling 5 includes a second planet carrier support table 52 and a pin shaft auxiliary tooling 53.
The second planet carrier support platform 52 is rotatably arranged on the workbench 1 through a rotating seat 51; the pin shaft auxiliary tool 53 is located on one side of the second planet carrier support table 52, and the pin shaft is conveyed into the pin hole 61 through the pin shaft auxiliary tool 53. The pin shaft auxiliary tool 53 is provided with a pin shaft accommodating cavity 531 for accommodating a pin shaft, one end, far away from the second planet carrier support table 52, of the pin shaft accommodating cavity 531 is provided with a push rod 532, and the pin shaft is pushed into a pin hole 61 of the planet carrier 6 through the push rod 532.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims (10)

1. A planet row stacking assembly process is characterized in that: the method comprises the following steps:
s1: pressing an inner sleeve (82) and a roller pin (83) of a roller pin bearing (8) into a shaft hole of a star wheel (7) to form a first planet wheel assembly;
s2: detecting the first planet wheel assembly, and after confirming that no drop stitch exists, placing an upper gasket and a lower gasket (11) on the upper end surface and the lower end surface of the first planet wheel assembly to form a second planet wheel assembly;
s3: detecting the second planet wheel assembly, and assembling the second planet wheel assembly on a planet carrier (6) to form a planet carrier assembly after confirming that the stacking posture is correct;
s4: and assembling a pin shaft for the planet carrier assembly.
2. A planet bar stacking assembly process as claimed in claim 1, wherein: step S1 includes
S11: the first pneumatic clamping jaw (91) moves to the position right above the first pneumatic supporting table (22), and the first pneumatic clamping jaw (91) is in a closed state;
s12: the auxiliary supporting sleeve (221) rises until the upper end face of the auxiliary supporting sleeve (221) is tightly attached to the lower side face of the first pneumatic clamping jaw (91), and the supporting and positioning shaft (223) extends into the positioning groove of the first pneumatic clamping jaw (91);
s13: the planet wheel (7) is placed in the positioning groove and sleeved outside the supporting positioning shaft (223);
s14: placing the needle roller bearing (8) on the upper end face of the planetary wheel (7), supporting the needle roller bearing (8) by a shaft shoulder of the supporting and positioning shaft (223), and extending the upper end of the supporting and positioning shaft (223) into the inner sleeve (82);
s15: the first press-fitting head (211) descends to apply downward pressure to the inner sleeve (82) and the roller pin (83); the supporting and positioning shaft (223) and the first press-fitting head (211) synchronously descend until the inner sleeve (82) and the roller pin (83) are pressed in place;
s16: when the inner sleeve (82) and the roller pin (83) are detected to be pressed in place, the auxiliary supporting sleeve (221) descends to reset, and the first pressing head (211) ascends to reset.
3. A planet bar stacking assembly process as claimed in claim 1, wherein: step S2 includes
S21: placing the lower gasket (11) into a gasket groove of the lower gasket positioning support platform (311);
s22: the gasket supporting shaft (312) moves upwards until the upper end of the gasket supporting shaft extends into the shaft sleeve (82) and the shaft shoulder of the gasket supporting shaft is positioned at the lower side of the first pneumatic clamping jaw (91);
s23: the first pneumatic clamping jaw (91) is opened, and the first planet wheel assembly is adsorbed by the gasket supporting shaft (312);
s24: the gasket supporting shaft (312) continues to move upwards until the first planetary wheel assembly is positioned on the moving track of the second pneumatic clamping jaw (92), and an upper gasket is placed on the upper end face of the planetary wheel (7);
s25: pushing the second pneumatic clamping jaw (92), and enabling the second planetary wheel assembly to enter a clamping cavity (922);
s26: the pad support shaft (312) is reset and the detection device (32) detects whether the second planetary wheel assembly is properly stacked.
4. A planet bar stacking assembly process as claimed in claim 1, wherein: step S3 includes
S31: mounting the planet carrier (6) on a first planet carrier support table (42);
s32: pushing the second planet wheel assembly into the planet wheel mounting position of the planet carrier (6) through a push plate (923);
s33: placing a guide pin (44) at the upper end of the inner sleeve (82), controlling the second press-fitting head to move downwards, applying pressure at the upper end of the guide pin (44) until the inner sleeve (82) falls off, and lifting and resetting the second press-fitting head;
s34: controlling the guide pin (44) to fall, and placing the planet wheel shaft on the upper end surface of the guide pin (44) when the upper end of the guide pin (44) enters the shaft hole of the planet wheel (7); then the guide pin (44) and the planet gear shaft descend together until the planet gear shaft is installed in place;
s35: the guide pin (44) maintains the supporting state of the planet wheel shaft, and an auxiliary pin is inserted into a pin hole (61) of the planet carrier (6); the guide pin (44) is then removed.
5. The planet row stacking assembly process of claim 4, wherein: when a plurality of planet wheels (7) are needed on the planet carrier (6), the steps S1-S3 are repeatedly executed, and the stacked second planet wheel assemblies are sequentially mounted on the planet carrier (6); and then, the step S4 is repeatedly executed to finish the installation of all the pin shafts on one planet carrier (6).
6. A planet bar stacking assembly process as claimed in claim 1, wherein: in step S4, the auxiliary pin in the pin hole (61) is pulled out, and then the second planet carrier support table (52) is rotated so that the pin hole (61) is aligned with the pin shaft auxiliary tool (53), and the pin shaft is fitted into the pin hole (61).
7. Apparatus for carrying out the process for the assembly of a stack of planet rows according to any one of claims 1 to 6, characterized in that: comprises that
The first station tool (2) is used for installing an inner sleeve (82) and a roller pin (83) of a roller pin bearing (8) into a shaft hole of the planet wheel (7) to form a first planet wheel assembly;
the second station tooling (3) is used for detecting whether the first planet wheel assembly has missed stitches or not, assembling the upper gasket and the lower gasket (11) with the first planet wheel assembly to form a second planet wheel assembly, and detecting whether the second planet wheel assembly is correctly stacked or not;
the third station tooling (4) is used for assembling the second planet wheel assembly with the planet carrier (6);
the fourth station tool (5) is used for installing the pin shaft into the pin hole (61) of the planet carrier (6);
the first pneumatic clamping jaw (91) is used for supporting the planet wheel (7) and transferring the first planet wheel assembly from the first station tool (2) to the second station tool (3);
and the second pneumatic clamping jaw (92) is used for transferring the second planetary wheel assembly from the second station tooling (3) to the fourth station tooling (5).
8. The apparatus of claim 7, wherein: the first station tool (2) comprises a first manual press (21) and a first pneumatic support table (22); the first pneumatic support table (22) comprises an auxiliary support sleeve (221), a support positioning shaft (223) and a compression spring (222); the auxiliary supporting sleeve (221) can lift relative to the first pneumatic clamping jaw (91); a shaft mounting hole is arranged in the middle of the upper end face of the auxiliary support sleeve (221), and the lower end of the support positioning shaft (223) is fixed in the shaft mounting hole through a compression spring (222); the supporting and positioning shaft (223) is a stepped shaft with a small upper end and a large lower end.
9. The apparatus of claim 7, wherein: the second station tool (3) comprises a gasket mounting table (31) and detection equipment (32);
the gasket mounting table (31) comprises a lower gasket positioning support table (311), and a gasket groove for accommodating the lower gasket (11) is formed in the upper end face of the lower gasket positioning support table (311); the bottom wall of the gasket groove is provided with a guide hole, a gasket support shaft (312) is arranged in the guide hole, the gasket support shaft (312) can move up and down relative to the guide hole, and the gasket support shaft (312) has magnetism; the gasket supporting shaft (312) is a stepped shaft, the outer diameter of the upper end of the stepped shaft is smaller than the inner diameter of the lower gasket (11), and the outer diameter of the lower end of the stepped shaft is larger than the inner diameter of the lower gasket (11);
the detection device (32) comprises two industrial cameras which are respectively used for photographing the upper end surface and the lower end surface of the first planetary wheel assembly.
10. The apparatus of claim 7, wherein:
the third station tooling (4) at least comprises a first planet carrier supporting table (42), a second manual press (41), a guide pin (44) and an auxiliary pin; the first planet carrier supporting platform (42) comprises a first rotary supporting seat (421), and the first rotary supporting seat (421) is rotatably arranged on the workbench (1); an avoiding part (423) is arranged on the first rotary supporting seat (421), and when the first rotary supporting seat is used, the shaft hole of the planet wheel (7) corresponds to the avoiding part (423) in position, so that a falling channel is provided for the inner sleeve (82); the outer diameter of the guide pin (44) is larger than the inner diameter of the inner sleeve (82) and smaller than the outer diameter of the inner sleeve (82); the auxiliary pin is matched with the pin hole (61);
the fourth station tool (5) comprises a second planet carrier support table (52) and a pin shaft auxiliary tool (53); the second planet carrier support platform (52) is rotatably arranged on the workbench (1) through a rotating seat (51); the pin shaft auxiliary tool (53) is located on one side of the second planet carrier support table (52) and used for installing a pin shaft into the pin hole (61).
CN202011586154.5A 2020-12-29 2020-12-29 Planet row stacking assembly process and equipment Active CN112571055B (en)

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CN116423211A (en) * 2023-06-12 2023-07-14 盛瑞传动股份有限公司 Planet row assembly assembling method
CN116690190A (en) * 2023-08-04 2023-09-05 盛瑞传动股份有限公司 Planet row assembling process

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