CN114589477B - Speed reducer housing bearing press-fitting equipment - Google Patents
Speed reducer housing bearing press-fitting equipment Download PDFInfo
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- CN114589477B CN114589477B CN202111483751.XA CN202111483751A CN114589477B CN 114589477 B CN114589477 B CN 114589477B CN 202111483751 A CN202111483751 A CN 202111483751A CN 114589477 B CN114589477 B CN 114589477B
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- positioning core
- core rod
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
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Abstract
The invention discloses a bearing press-mounting device for a speed reducer shell, which comprises a device body and a tool for placing the speed reducer shell, wherein a lifting driving device is arranged on the device body, a pressure rod is connected below the lifting driving device and is vertically arranged, the pressure rod comprises a main rod body and a positioning core rod arranged at the lower end of the main rod body and used for placing a bearing, the diameter of the positioning core rod is smaller than that of the main rod body, and a bearing retaining mechanism is arranged on the positioning core rod; be provided with the location boss that is used for placing the bearing on the frock, still be provided with on the equipment body and be used for shifting the bearing from the location boss and place the material loading manipulator on the location core bar. The press fitting device is matched with a production line, when the bearing of the speed reducer shell is press fitted, the automation degree is high, the press fitting efficiency is high, and the assembly production efficiency of the speed reducer shell is improved.
Description
Technical Field
The invention relates to bearing press-fitting equipment, in particular to speed reducer shell bearing press-fitting equipment.
Background
The reducer is a common mechanical device, and comprises a reducer shell, a gear shaft and other parts, wherein during production and assembly of the reducer, a bearing needs to be pressed on the reducer shell for mounting the gear shaft.
When the existing bearing press-fitting equipment presses the bearing on the shell of the speed reducer, the problems of low automation degree and low press-fitting efficiency exist, and the improvement of the production efficiency is not facilitated.
Such as: chinese patent publication No. CN 104061246A, entitled a press-fitting bearing device, includes: the device comprises a rack, a driving mechanism and a pressing sleeve fixed on the driving mechanism, wherein the driving mechanism is fixed on the rack; the rack comprises an upper plate and a bottom plate which are arranged in parallel, and a side plate which is vertical to the bottom plate is fixed between the upper plate and the bottom plate; a positioning ring is arranged on the bottom plate corresponding to the pressing sleeve; the driving mechanism comprises a screw and a hinge rod fixed at the upper end of the screw, and the hinge rod is perpendicular to the screw; the screw rod vertically penetrates through the upper plate, and a threaded sleeve is arranged between the screw rod and the upper plate. The press-mounting bearing device depends on manual operation, has the problems of low automation degree and low press-mounting efficiency, and is not beneficial to improving the production efficiency.
Disclosure of Invention
The invention aims to solve the problems that the existing bearing press-fitting equipment is low in automation degree and press-fitting efficiency and is not beneficial to improving the production efficiency when a bearing is press-fitted on a speed reducer shell, and provides the bearing press-fitting equipment for the speed reducer shell, which can effectively solve the problems.
The purpose of the invention is realized by the technical scheme as required: a bearing press-mounting device for a speed reducer shell comprises a device body and a tool for placing the speed reducer shell, wherein a lifting driving device is arranged on the device body, a pressing rod is connected below the lifting driving device and is vertically arranged, the pressing rod comprises a main rod body and a positioning core rod arranged at the lower end of the main rod body and used for placing a bearing, the diameter of the positioning core rod is smaller than that of the main rod body, and a bearing retaining mechanism is arranged on the positioning core rod; be provided with the location boss that is used for placing the bearing on the frock, still be provided with on the equipment body and be used for shifting the bearing from the location boss and place the material loading manipulator on the location core bar.
The invention is applied to the assembly line of the speed reducer shell and is mainly used for the process of press mounting of the bearing. In the invention, the tool is provided with a positioning mechanism for positioning the speed reducing shell. The tool is arranged on the production line and moves along with the production line. The using method of the invention is as follows: before assembly, positioning the speed reducer shell on a tool, placing the bearing on a positioning boss, moving the tool along with a production line, stopping the tool at the position when the tool moves to the position of bearing press-fitting equipment along with the production line, and starting a bearing press-fitting process; during press mounting, firstly, bearing feeding is carried out, and the bearing placed on the positioning boss is transferred and placed on the positioning core rod below the pressure rod through the feeding manipulator; the feeding manipulator is provided with a clamping jaw which can be clamped and held, the clamping jaw can move in the horizontal and vertical directions, when a bearing is fed, the clamping jaw moves to the position of the bearing and clamps the bearing through the clamping jaw, after the bearing is clamped by the clamping jaw, the bearing is sleeved on the positioning core rod through the horizontal and vertical movements of the clamping jaw, and then the clamping jaw is loosened, and a bearing retaining mechanism on the positioning core rod can ensure that the bearing is retained on the positioning core rod and prevent the bearing from falling off the positioning core rod; after the bearing is loaded, the pressing rod begins to descend under the driving of the lifting driving device, the bearing is pressed into a bearing hole in the speed reducer shell, after the press mounting is completed, the pressing rod rises to reset, the bearing press mounting process is completed, and the tool moves to the next station along with the assembly line to perform the next process. The press fitting device is matched with a production line, when the bearing of the speed reducer shell is press fitted, the automation degree is high, the press fitting efficiency is high, and the assembly production efficiency of the speed reducer shell is improved.
Preferably, the bearing retaining mechanism comprises a guide groove arranged at the lower end of the positioning core rod, the guide groove is transversely arranged, one end of the guide groove penetrates through the side face of the positioning core rod, a ball is arranged in the guide groove, a second spring is arranged between the ball and the bottom of the guide groove, and a check ring used for limiting the ball is arranged at one end of the guide groove. The gyro wheel can remove along the axis of guide way, and the ball is under the effect of spring, and one side protrusion in the lateral surface of location core bar of ball, when the bearing overlaps the location core bar, the ball is located the below of bearing, and the part of ball protrusion in the location core bar can play spacing effect to the bearing for the bearing temporarily keeps on the location core bar, avoids the bearing to drop from the location core bar.
Preferably, the lifting drive device is an electric cylinder.
Preferably, the feeding manipulator is a two-axis moving manipulator.
Preferably, the lower end of the positioning core rod is provided with a round chamfer.
Preferably, the lower end of the main rod body is provided with a guide hole, a cavity is arranged above the guide hole, a step surface is formed between the cavity and the guide hole, the positioning core rod is connected in the guide hole in a sliding manner, the upper end of the positioning core rod extends into the cavity, the side surface of the positioning core rod is provided with a limiting ring, and the limiting ring is positioned above the step surface; a first spring is arranged between the upper end of the positioning core rod and the upper end of the cavity; strip-shaped damping bag bodies are respectively arranged on the inner walls of the two sides of the cavity body, the damping bag bodies are arranged along the vertical direction, the damping bag bodies are made of flexible materials, and magnetorheological fluid is filled in the damping bag bodies; the inner side of the damping bag body is provided with a lead which is arranged on the inner wall of the damping bag body in a spiral way; the two sides of the positioning core rod are respectively and rotatably connected with rollers corresponding to the damping capsule body, and the rollers are in contact with the outer surface of the damping capsule body. When the feeding manipulator sleeves the bearing on the positioning core rod, the following conditions can exist: the bearing can prop against the lower end surface of the positioning core rod in the process that the bearing is sleeved into the positioning core rod by the feeding manipulator due to the fact that the moving position of the feeding manipulator is not in place, the bearing is not accurately aligned with the positioning core rod, and position deviation exists between the bearing and the positioning core rod, so that the bearing cannot be sleeved into the positioning core rod, and at the moment, the bearing can still be clamped by the feeding manipulator to move upwards, so that the bearing and the feeding manipulator are easily damaged due to overlarge stress; in the invention, the positioning core rod can move up and down relative to the main rod body, and the invention has the advantages that: when the bearing cannot be accurately sleeved into the positioning core rod due to position deviation, the bearing can prop against the lower end face of the positioning core rod, so that the positioning core rod can be subjected to upward jacking force, and when the jacking force reaches a certain magnitude, the positioning core rod can move upwards, so that the bearing moving upwards is avoided, and the bearing and the feeding manipulator are prevented from being damaged due to overlarge stress; then, technicians can timely remove the faults to ensure the smooth operation of the production line. In the invention, the roller is locally sunk into the damping capsule, when the positioning core rod moves up and down relative to the main rod body, the roller can roll along the surface of the damping capsule, and when the roller rolls on the surface of the damping capsule, the roller can generate resistance to the movement of the positioning core rod, so that the roller has the advantages that: when the positioning core rod moves downwards under the action of the first spring, the positioning core rod can move downwards at a slower speed due to the existence of resistance, so that the impact force between the positioning core rod and the main rod body is reduced; meanwhile, the magnetorheological fluid is filled in the damping capsule body, the viscosity of the magnetorheological fluid can be changed under the influence of a magnetic field, and the higher the magnetic field is, the higher the viscosity of the magnetorheological fluid is; the lead arranged on the inner side of the damping bag body is connected with an external power supply, after the lead is electrified, the spiral lead can apply a certain magnetic field to the magnetorheological fluid, and the size of the magnetic field is determined by the electrified current of the lead; meanwhile, the higher the viscosity of the magnetorheological fluid is, the higher the resistance of the roller wheel when rolling on the stripy bag body is, and the larger the damping force when the positioning core rod moves up and down is; therefore, the resistance of the positioning core rod during the up-and-down movement can be conveniently adjusted by adjusting the size of the electrified current of the lead, so that a resistance threshold is arranged on the positioning core rod, and the positioning core rod can move upwards to realize the avoidance of the bearing only when the jacking force borne by the positioning core rod is greater than the resistance threshold; the resistance threshold is adjusted to be a proper size, so that the upward acting force of the bearing on the positioning core rod is smaller than the resistance threshold when the bearing is normally loaded, the positioning core rod can be kept still when the bearing is normally loaded, and the influence on the normal loading of the bearing caused by the movement of the positioning core rod is avoided.
Preferably, the damping bladder is made of rubber.
Preferably, wheel carriers are respectively arranged on two sides of the positioning core rod, and the roller is rotationally connected to the wheel carriers.
The invention has the beneficial effects that: the press fitting device is matched with a production line, when the bearing of the speed reducer shell is press fitted, the automation degree is high, the press fitting efficiency is high, and the assembly production efficiency of the speed reducer shell is improved.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a partial cross-sectional view of the strut.
Fig. 3 is an enlarged view of a portion B in fig. 2.
Fig. 4 is an enlarged view of a portion a in fig. 2.
In the figure: 1. the device comprises a device body, 2, a lifting driving device, 3, a pressure lever, 4, a tool, 5, a feeding manipulator, 6, a positioning boss, 7, a speed reducer shell, 8, a bearing, 9, a main rod body, 10, a positioning core rod, 11, a cavity, 12, a first spring, 13, a limiting ring, 14, a damping capsule, 15, a wheel carrier, 16, a roller, 17, a lead, 18, a guide groove, 19, a ball, 20, a retainer ring, 21 and a second spring.
Detailed Description
The invention is further described by the following detailed description in conjunction with the accompanying drawings.
Example 1:
as shown in fig. 1 to 4, the press-fitting equipment for the bearings of the speed reducer shell comprises an equipment body 1 and a tool 4 for placing the speed reducer shell 7. The tool 4 is provided with a positioning mechanism for positioning the speed reduction shell. The speed reducer housing 7 can be positioned on the tool 4. The lifting driving device 2 is arranged on the equipment body 1, and the lifting driving device 4 is an electric cylinder. The lower part of the lifting driving device 2 is connected with a pressure lever 3, and the pressure lever 3 is vertically arranged. The compression bar 3 comprises a main bar body 9 and a positioning core bar 10 arranged at the lower end of the main bar body 9 and used for placing the bearing 8, and the diameter of the positioning core bar 10 is smaller than that of the main bar body 9. The lower end of the positioning core rod 10 is provided with a round chamfer. The positioning core rod 10 is provided with a bearing retaining mechanism. The bearing holding mechanism comprises a guide groove 18 arranged at the lower end of the positioning core rod, the guide groove 18 is transversely arranged, and one end of the guide groove 18 penetrates through the side surface of the positioning core rod 10. The guide groove 18 is provided with a ball 19, a second spring 21 is arranged between the ball 19 and the bottom of the guide groove 18, and one end of the guide groove 18 is provided with a retainer ring 20 for limiting the ball 19. The tool 4 is provided with a positioning boss 6 for placing a bearing 8. The equipment body 1 is also provided with a feeding manipulator 5 for transferring and placing the bearing 8 from the positioning boss 6 onto the positioning core rod 10. The feeding manipulator 5 is a two-axis moving manipulator. The feeding robot 5 is prior art. But be provided with on the material loading manipulator and press from both sides the clamping jaw of getting handheld, the clamping jaw can carry out the removal of level and vertical direction, when the bearing material loading, the clamping jaw removes earlier to the position at bearing place and presss from both sides the bearing through the clamping jaw, the clamping jaw is cliied behind the bearing, through the removal of clamping jaw level and vertical direction, with the bearing cover to the location core bar on, loosen the clamping jaw afterwards, the bearing retaining mechanism on the location core bar can ensure that the bearing keeps on the location core bar, prevent that the bearing from dropping from the location core bar.
The lower extreme of the main rod body 9 is provided with the guiding hole, and the top of guiding hole is provided with cavity 11, forms the step face between cavity 11 and the guiding hole. The positioning core rod 10 is slidably connected in the guide hole, and the upper end of the positioning core rod 10 extends into the cavity 11. The side surface of the positioning core rod 10 is provided with a limiting ring 13, and the limiting ring 13 is positioned above the step surface. A first spring 12 is arranged between the upper end of the positioning core rod 10 and the upper end of the cavity 11. The inner walls of the two sides of the cavity 11 are respectively provided with a strip-shaped damping bag body 14, and the damping bag bodies 14 are arranged along the vertical direction. The dampening bladder 14 is made of a flexible material. In the present invention, the damping bladder 14 is made of rubber. The damping bladder 14 is filled with magnetorheological fluid. The inner side of the dampening capsule 14 is provided with wires 17, which wires 17 are arranged in a spiral-like manner on the inner wall of the dampening capsule 14. The two sides of the positioning core bar 10 are respectively connected with a wheel frame 15 corresponding to the damping capsule 14 in a rotating way, and the wheel frame 15 is connected with a roller 16 in a rotating way. The rollers 16 are in contact with the outer surface of the damping bladder 14. The rollers 16 are partially recessed into the dampening bladders 14. The roller 16 may roll along the surface of the damping bladder 14. When the feeding manipulator sleeves the bearing on the positioning core rod, the following conditions can exist: the bearing can prop against the lower end surface of the positioning core rod in the process that the bearing is sleeved into the positioning core rod by the feeding manipulator due to the fact that the moving position of the feeding manipulator is not in place, the bearing is not accurately aligned with the positioning core rod, and position deviation exists between the bearing and the positioning core rod, so that the bearing cannot be sleeved into the positioning core rod, and at the moment, the bearing can still be clamped by the feeding manipulator to move upwards, so that the bearing and the feeding manipulator are easily damaged due to overlarge stress; in the invention, the positioning core rod can move up and down relative to the main rod body, which has the advantages that: when the bearing cannot be accurately sleeved into the positioning core rod due to position deviation, the bearing can prop against the lower end face of the positioning core rod, so that the positioning core rod can be subjected to upward jacking force, and when the jacking force reaches a certain magnitude, the positioning core rod can move upwards, so that the bearing moving upwards is avoided, and the bearing and the feeding manipulator are prevented from being damaged due to overlarge stress; then, technicians can timely remove the faults to ensure the smooth operation of the production line. In the invention, the roller is locally sunk into the damping capsule, when the positioning core rod moves up and down relative to the main rod body, the roller can roll along the surface of the damping capsule, and when the roller rolls on the surface of the damping capsule, the roller can generate resistance to the movement of the positioning core rod, so that the roller has the advantages that: when the positioning core rod moves downwards under the action of the first spring, the positioning core rod can move downwards at a slower speed due to the existence of resistance, so that the impact force between the positioning core rod and the main rod body is reduced; meanwhile, the magnetorheological fluid is filled in the damping capsule body, the viscosity of the magnetorheological fluid can be changed under the influence of a magnetic field, and the higher the magnetic field is, the higher the viscosity of the magnetorheological fluid is; the lead arranged on the inner side of the damping capsule body is connected with an external power supply, after the lead is electrified, the spiral lead can apply a certain magnetic field to the magnetorheological fluid, and the size of the magnetic field is determined by the electrified current of the lead; meanwhile, the higher the viscosity of the magnetorheological fluid is, the higher the resistance of the roller wheel when the roller wheel rolls on the strip-shaped capsule body is, and the higher the damping force when the positioning core rod moves up and down is; therefore, the resistance of the positioning core rod during moving up and down can be conveniently adjusted by adjusting the size of the electrified current of the lead, so that a 'resistance threshold' is arranged on the positioning core rod, and the positioning core rod can move up to realize avoidance of the bearing only when the top thrust force borne by the positioning core rod is greater than the 'resistance threshold'; by adjusting the resistance threshold to a proper value, the upward acting force of the bearing on the positioning core rod is smaller than the resistance threshold when the bearing is normally loaded, so that the positioning core rod can be kept still when the bearing is normally loaded, and the influence of the movement of the positioning core rod on the normal loading of the bearing is avoided.
The invention is applied to the assembly line of the speed reducer shell and is mainly used for the process of press mounting of the bearing. In the invention, the tool is arranged on the production line and moves along with the production line. The using method of the invention is as follows: before assembly, positioning the speed reducer shell on a tool, placing the bearing on a positioning boss, moving the tool along with a production line, stopping the tool at the position when the tool moves to the position of bearing press-fitting equipment along with the production line, and starting a bearing press-fitting process; during press mounting, the bearing is loaded, and the bearing placed on the positioning boss is transferred and placed on the positioning core rod below the pressure rod through the loading manipulator; after the bearing is loaded, the pressing rod begins to descend under the driving of the lifting driving device, the bearing is pressed into a bearing hole in the speed reducer shell, after the press mounting is completed, the pressing rod rises to reset, the bearing press mounting process is completed, and the tool moves to the next station along with the assembly line to perform the next process. The press fitting device is matched with a production line, when the bearing of the speed reducer shell is press fitted, the automation degree is high, the press fitting efficiency is high, and the assembly production efficiency of the speed reducer shell is improved.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (7)
1. The press-mounting equipment for the bearing of the speed reducer shell is characterized by comprising an equipment body and a tool for placing the speed reducer shell, wherein a lifting driving device is arranged on the equipment body, a pressing rod is connected below the lifting driving device and is vertically arranged, the pressing rod comprises a main rod body and a positioning core rod which is arranged at the lower end of the main rod body and is used for placing the bearing, the diameter of the positioning core rod is smaller than that of the main rod body, and a bearing retaining mechanism is arranged on the positioning core rod; the tool is provided with a positioning boss for placing the bearing, and the equipment body is also provided with a feeding manipulator for transferring the bearing from the positioning boss and placing the bearing on the positioning core rod; the lower end of the main rod body is provided with a guide hole, a cavity is arranged above the guide hole, a step surface is formed between the cavity and the guide hole, the positioning core rod is connected in the guide hole in a sliding manner, the upper end of the positioning core rod extends into the cavity, the side surface of the positioning core rod is provided with a limiting ring, and the limiting ring is positioned above the step surface; a first spring is arranged between the upper end of the positioning core rod and the upper end of the cavity; strip-shaped damping bag bodies are respectively arranged on the inner walls of the two sides of the cavity body, the damping bag bodies are arranged along the vertical direction, the damping bag bodies are made of flexible materials, and magnetorheological fluid is filled in the damping bag bodies; the inner side of the damping bag body is provided with a lead which is arranged on the inner wall of the damping bag body in a spiral way; the two sides of the positioning core rod are respectively and rotatably connected with rollers corresponding to the damping capsule body, and the rollers are in contact with the outer surface of the damping capsule body.
2. A press-fitting device for a bearing of a casing of a speed reducer according to claim 1, wherein the bearing holding mechanism comprises a guide groove provided at a lower end of the positioning core rod, the guide groove is transversely provided, one end of the guide groove penetrates through a side surface of the positioning core rod, a ball is provided in the guide groove, a second spring is provided between the ball and a bottom of the guide groove, and one end of the guide groove is provided with a retainer ring for limiting the ball.
3. A reducer housing bearing press-fitting apparatus as set forth in claim 1, wherein said elevating drive means is an electric cylinder.
4. A reducer housing bearing press-fitting device according to claim 1, wherein the feeding manipulator is a two-axis moving manipulator.
5. A press-fitting equipment for bearings of speed reducer casings as claimed in claim 1, wherein the lower end of the positioning core rod is provided with a round chamfer.
6. A reducer housing bearing press-fitting apparatus as set forth in claim 1, wherein said damping bladder is made of rubber.
7. A press-fitting device for bearings of a speed reducer casing as claimed in claim 1, wherein wheel carriers are respectively provided on both sides of the positioning core bar, and the rollers are rotatably connected to the wheel carriers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111483751.XA CN114589477B (en) | 2021-12-07 | 2021-12-07 | Speed reducer housing bearing press-fitting equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111483751.XA CN114589477B (en) | 2021-12-07 | 2021-12-07 | Speed reducer housing bearing press-fitting equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114589477A CN114589477A (en) | 2022-06-07 |
| CN114589477B true CN114589477B (en) | 2023-02-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111483751.XA Active CN114589477B (en) | 2021-12-07 | 2021-12-07 | Speed reducer housing bearing press-fitting equipment |
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| CN (1) | CN114589477B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101733625B (en) * | 2009-12-28 | 2011-06-29 | 力帆实业(集团)股份有限公司 | Device for press-fitting crank case bearing |
| CN201815844U (en) * | 2010-09-08 | 2011-05-04 | 上海内燃机研究所 | Bearing elastic pressing rod used for motorcycle engine case body bearing press-mounting device |
| CN202418406U (en) * | 2012-02-19 | 2012-09-05 | 谭晓婧 | Double-discharge rod magnetorheological elastomer damper |
| CN107877132B (en) * | 2017-12-15 | 2023-12-15 | 昆山市工研院智能制造技术有限公司 | Multi-station oil seal with counter-force support and bearing press-fitting equipment |
| CN207656212U (en) * | 2017-12-15 | 2018-07-27 | 昆山市工研院智能制造技术有限公司 | A kind of double-station gear and bearing press mounting equipment |
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2021
- 2021-12-07 CN CN202111483751.XA patent/CN114589477B/en active Active
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| CN114589477A (en) | 2022-06-07 |
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