Centering device and method

Abstract

The invention discloses a centering device and method, and aims to overcome the defects that automatic centering cannot be achieved in the assembling process of shaft parts and assembling holes in workpieces, installation is inconvenient, and the assembling efficiency is low. The floating device comprises a base and a floating installation platform, at least three floating assemblies are installed on the periphery of the floating installation platform on the base, each floating assembly comprises a floating buffer part, and the floating buffer parts abut against the floating installation platform. And through the arrangement of the centering device, the shaft parts can be automatically centered in a floating mode during installation, installation is facilitated, and the installation efficiency can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of shaft assembly, and more particularly to a centering device and method. Background Art

[0002] In daily factory production, parts assembly is an indispensable operation process, and there are many ways to assemble. In the process of parts assembly, especially the assembly between shaft parts and matching holes, when the assembly requirement is interference assembly, the part shape profiling positioning method is usually used for assembly. However, this positioning method, when the gap in the profiling area is too large or too small, there will be a situation where the shaft parts cannot be inserted smoothly, causing deformation and damage to the parts. If the traditional shape profiling positioning method is used in the case of fully automatic assembly, the stability of the assembly and the qualified rate of the product will be lower. Summary of the invention

[0003] In order to overcome the above-mentioned shortcomings, the present invention provides a centering device and method, which can automatically align the shaft parts by floating during installation, thereby facilitating installation and improving installation efficiency.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: a centering device, including a base and a floating installation platform, at least three floating components are installed on the periphery of the floating installation platform on the base, the floating components include floating buffers, and the floating buffers are supported on the floating installation platform.

[0005] Under normal circumstances, the workpiece is placed and fixed on the floating installation platform. The workpiece is provided with an assembly hole that matches the shaft parts. The shaft parts move from top to bottom. When the shaft parts begin to contact the assembly holes that match them, the floating installation platform drives the workpiece to translate with a certain offset, thereby ensuring the smooth insertion of the shaft parts and the quality of the assembly. At this point, the assembly of the shaft parts is completed. Under certain circumstances, the centering device can also be inverted, that is, the upper workpiece is floating. Through the setting of the centering device, the shaft parts can float and automatically align during installation, which facilitates installation and helps to improve installation efficiency.

[0006] Preferably, the floating buffer is a floating spring.

[0007] A floating spring is used as a floating buffer, which has a good buffering and floating effect on the floating installation platform.

[0008] Preferably, the floating assembly further comprises a connecting seat, to which a movable abutting seat is connected, and the floating buffer member abuts against the abutting seat.

[0009] The abutment seat is installed on the connecting seat, and the floating buffer abuts on the abutment seat, which is stable and reliable. The abutment seat can be moved and adjusted to adjust the buffering force of the floating buffer, thereby achieving fine adjustment of the position of the floating installation platform, which is flexible and convenient.

[0010] Preferably, connecting columns are installed on the floating installation platform and on the floating buffer component respectively, and the floating buffer component is connected to the connecting columns.

[0011] The installation of the connecting column on the floating mounting platform facilitates the connection of the floating buffer.

[0012] Preferably, a protective cover is installed on the base, the protective cover covers the floating assembly, and slots are provided on the protective cover, and the edges of the slots cover the edges of the floating installation platform.

[0013] The setting of the protective cover enables the floating component to be hidden inside, thereby playing a protective role for the floating component.

[0014] Preferably, a detachable calibration shaft is installed on the base, a calibration hole is provided on the floating mounting platform, and the calibration shaft is movably plug-in connected to the calibration hole.

[0015] The calibration shaft is installed on the base. When installing the floating installation platform, the floating installation platform and the calibration shaft are assembled together. At this time, the calibration shaft calibrates and positions the floating installation platform to ensure the accuracy of the installation position of the floating installation platform.

[0016] Preferably, a plurality of support rods are connected to the floating installation platform, the lower ends of the support rods are connected to rollers, and the rollers are supported on the base; bearings are installed between the support rods and the floating installation platform.

[0017] The support rod supports the floating installation platform. Since the floating installation platform is floating, during the floating displacement of the floating installation platform, the installation of bearings and rollers ensures the smooth movement of the floating installation platform to avoid jamming.

[0018] Preferably, a plurality of fastening holes are provided on the floating mounting platform.

[0019] The setting of the fastening holes facilitates the installation and fixation of the workpiece.

[0020] Preferably, a lifting support plate is installed on the base, a buffer spring is installed between the support plate and the base, and the floating installation platform is supported on the support plate.

[0021] The buffer spring is installed between the support plate and the base, so that the support plate can move and buffer, and then the floating mounting platform supported on the support plate can also be raised and lowered to buffer, so as to realize the vertical floating of the floating mounting platform. When the shaft parts and the assembly holes on the workpiece are assembled, the shaft parts and the floating mounting platform are close to each other. When the positions of the shaft parts and the assembly holes are deviated, the shaft parts are pushed onto the workpiece on the floating mounting platform. While the floating mounting platform is floating and moving horizontally, it can also move vertically to buffer, thereby improving the self-centering speed and accelerating the assembly speed of the shaft parts and the assembly holes.

[0022] A centering method, which uses a centering device to realize the installation of a shaft part and an assembly hole on a workpiece, comprises the following steps: S1, fixing the workpiece on a floating installation platform; S2, aligning the shaft part with the assembly hole on the workpiece, the shaft part and the centering device approach each other, when the shaft part begins to contact the assembly hole, the floating installation platform drives the workpiece to perform a certain offset translation until the shaft part is successfully inserted into the assembly hole, thereby completing the assembly of the shaft part and the assembly hole on the workpiece.

[0023] Under normal circumstances, the workpiece is placed and fixed on the floating mounting platform. The workpiece is provided with an assembly hole that matches the shaft parts. The shaft parts and the floating mounting platform are close to each other. When the shaft parts begin to contact the assembly holes that match them, the floating mounting platform drives the workpiece to translate with a certain offset, thereby ensuring the smooth insertion of the shaft parts and the quality of the assembly. At this point, the assembly of the shaft parts is completed. Under certain circumstances, the centering device can also be inverted, that is, the upper workpiece is floating. This assembly method facilitates the assembly operation of the shaft parts and the assembly holes, and improves work efficiency.

[0024] Compared with the prior art, the present invention has the following beneficial effects: (1) by setting up the centering device, shaft parts can be automatically centered in a floating manner during installation, which facilitates installation and helps improve installation efficiency; (2) when installing the floating installation platform, the floating installation platform is assembled together with the calibration shaft. At this time, the calibration shaft calibrates and positions the floating installation platform to ensure the accuracy of the installation position of the floating installation platform; (3) when the shaft parts are assembled with the assembly holes on the workpiece, when there is a deviation between the positions of the shaft parts and the assembly holes, the shaft parts are pushed onto the workpiece on the floating installation platform. While the floating installation platform is floating and moving laterally, it can also move vertically for buffering, thereby increasing the self-centering speed and speeding up the assembly speed of the shaft parts and the assembly holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the present invention.

[0026] Figure 2 It is an exploded view of the present invention.

[0027] Figure 3 It is a cross-sectional view of Example 1 of the present invention.

[0028] Figure 4 It is a cross-sectional view of Example 2 of the present invention.

[0029] Figure 5 It is a cross-sectional view of Example 3 of the present invention.

[0030] Figure 6 It is a cross-sectional view of Example 4 of the present invention.

[0031] Figure 7 It is a cross-sectional view of Example 5 of the present invention.

[0032] In the figure: 1, base, 2, floating mounting platform, 3, floating buffer, 4, fastening hole, 5, connecting seat, 6, abutting seat, 7, connecting column, 8, protective cover, 9, slot hole, 10, mounting slot, 11, flange, 12, calibration axis, 13, calibration hole, 14, support rod, 15, roller, 16, bearing, 17, universal ball, 18, support plate, 19, buffer spring, 20, groove, 21, convex ring, 22, limit ring, 23, floating plate, 24, gear ring, 25, push rod, 26, push groove, 27, drive motor, 28, gear, 29, flip seat, 30, fixed seat, 31, flip piston cylinder, 32, gear ring, 33, flip motor, 34, flip wheel, 35, positioning groove, 36, positioning ring. DETAILED DESCRIPTION

[0033] The technical solution of the present invention is further described in detail below through specific embodiments and in conjunction with the accompanying drawings: Embodiment 1: A centering device (see attached Figure 1 To Attachment Figure 3 ), comprising a base 1 and a floating installation platform 2, the base 1 being placed below the floating installation platform 2, at least three floating components being installed on the base 1 and the periphery of the floating installation platform 2, in this embodiment, three floating components are evenly arranged in the circumferential direction. The floating component comprises a floating buffer 3, and the floating buffer 3 is supported on the floating installation platform 2. The floating buffer 3 is a floating spring. A plurality of fastening holes 4 are arranged on the floating installation platform 2. The arrangement of the fastening holes 4 facilitates the installation and fixation of the workpiece.

[0034] The floating assembly also includes a connecting seat 5, which is fixedly connected to the base 1. The connecting seat 5 is an L-shaped structure. The connecting seat 5 is connected to a movable abutting seat 6, which is threadedly connected to the connecting seat 5, and the floating buffer 3 abuts on the abutting seat 6. A connecting column 7 is installed on the floating installation platform 2 corresponding to the floating buffer 3, and the floating buffer 3 is connected to the connecting column 7. A gap is provided between the connecting column 7 and the abutting seat 6. A connecting hole is provided on the floating installation platform 2 corresponding to the connecting column 7, and the connecting column 7 is threadedly connected and fastened to the connecting hole.

[0035] The abutment seat 6 is installed on the connection seat 5, and the floating buffer 3 abuts on the abutment seat 6, which is stable and reliable. The abutment seat 6 can be moved and adjusted to adjust the buffering force of the floating buffer 3, thereby achieving fine adjustment of the position of the floating installation platform 2, which is flexible and convenient.

[0036] A protective cover 8 is installed on the base 1. The protective cover 8 is annular in structure. The protective cover 8 covers the floating assembly. A slot 9 is provided on the protective cover 8. The edge of the slot 9 covers the edge of the floating installation platform 2. A mounting groove 10 is provided on the side wall of the protective cover 8 corresponding to the connecting seat 5. The connecting seat 5 is installed at the mounting groove 10. A flange 11 is provided on the inner edge of the upper end of the protective cover 8. The flange 11 covers the outer edge of the upper surface of the floating installation platform 2. The provision of the protective cover 8 hides the floating assembly inside, which plays a protective role for the floating assembly.

[0037] A detachable calibration shaft 12 is installed on the base 1, and a calibration hole 13 is provided on the floating installation platform 2. The calibration shaft 12 is movably plugged and connected with the calibration hole 13. The calibration shaft 12 is installed on the base 1. When the floating installation platform 2 is installed, the floating installation platform 2 and the calibration shaft 12 are sheathed together. At this time, the calibration shaft 12 calibrates and positions the floating installation platform 2 to ensure the accuracy of the installation position of the floating installation platform 2.

[0038] A plurality of support rods 14 are connected to the floating installation platform 2, and the lower ends of the support rods 14 are connected to rollers 15, and the rollers 15 are supported on the base 1; bearings 16 are installed between the support rods 14 and the floating installation platform 2. The support rods 14 support the floating installation platform 2. Since the floating installation platform 2 is floating, during the floating displacement of the floating installation platform 2, the installation of the bearings 16 and the rollers 15 ensures the smooth movement of the floating installation platform 2 and avoids the occurrence of a jamming phenomenon.

[0039] A centering method, using a centering device to realize the installation of a shaft part and an assembly hole on a workpiece, comprises the following steps: S1, fixing the workpiece on a floating installation platform 2; S2, aligning the shaft part with the assembly hole on the workpiece, the shaft part and the centering device approaching each other, when the shaft part begins to contact the assembly hole, the floating installation platform 2 drives the workpiece to perform a certain offset translation until the shaft part is successfully inserted into the assembly hole, thereby completing the assembly of the shaft part and the assembly hole on the workpiece.

[0040] Under normal circumstances, a workpiece is placed and fixed on the floating installation platform 2. The workpiece is provided with an assembly hole that matches the shaft parts. The shaft parts and the floating installation platform 2 are close to each other. When the shaft parts begin to contact the assembly holes that match them, the floating installation platform 2 drives the workpiece to translate with a certain offset, thereby ensuring the smooth insertion of the shaft parts and the quality of the assembly. At this point, the assembly of the shaft parts is completed. Under certain circumstances, the centering device can also be inverted, that is, the upper workpiece is floating. This assembly method facilitates the assembly operation of the shaft parts and the assembly holes, and improves work efficiency.

[0041] Embodiment 2: A centering device (see attached Figure 4 ), comprising a base 1 and a floating installation platform 2, the base 1 being placed below the floating installation platform 2, at least three floating components being installed on the base 1 and the periphery of the floating installation platform 2, in this embodiment, three floating components are evenly arranged in the circumferential direction. The floating component comprises a floating buffer 3, and the floating buffer 3 is supported on the floating installation platform 2. The floating buffer 3 is a floating spring. A plurality of fastening holes 4 are arranged on the floating installation platform 2. The arrangement of the fastening holes 4 facilitates the installation and fixation of the workpiece.

[0042] The floating assembly also includes a connecting seat 5, which is fixedly connected to the base 1. The connecting seat 5 is an L-shaped structure. The connecting seat 5 is connected to a movable abutting seat 6, which is threadedly connected to the connecting seat 5, and the floating buffer 3 abuts on the abutting seat 6. A connecting column 7 is installed on the floating installation platform 2 corresponding to the floating buffer 3, and the floating buffer 3 is connected to the connecting column 7. A gap is provided between the connecting column 7 and the abutting seat 6. A connecting hole is provided on the floating installation platform 2 corresponding to the connecting column 7, and the connecting column 7 is threadedly connected and fastened to the connecting hole.

[0043] The abutment seat 6 is installed on the connection seat 5, and the floating buffer 3 abuts on the abutment seat 6, which is stable and reliable. The abutment seat 6 can be moved and adjusted to adjust the buffering force of the floating buffer 3, thereby achieving fine adjustment of the position of the floating installation platform 2, which is flexible and convenient.

[0044] A protective cover 8 is installed on the base 1. The protective cover 8 is annular in structure. The protective cover 8 covers the floating assembly. A slot 9 is provided on the protective cover 8. The edge of the slot 9 covers the edge of the floating installation platform 2. A mounting groove 10 is provided on the side wall of the protective cover 8 corresponding to the connecting seat 5. The connecting seat 5 is installed at the mounting groove 10. A flange 11 is provided on the inner edge of the upper end of the protective cover 8. The flange 11 covers the outer edge of the upper surface of the floating installation platform 2. The provision of the protective cover 8 hides the floating assembly inside, which plays a protective role for the floating assembly.

[0045] A detachable calibration shaft 12 is installed on the base 1, and a calibration hole 13 is provided on the floating installation platform 2. The calibration shaft 12 is movably plugged and connected with the calibration hole 13. The calibration shaft 12 is installed on the base 1. When the floating installation platform 2 is installed, the floating installation platform 2 and the calibration shaft 12 are sheathed together. At this time, the calibration shaft 12 calibrates and positions the floating installation platform 2 to ensure the accuracy of the installation position of the floating installation platform 2.

[0046] A plurality of support rods 14 are connected to the floating installation platform 2, and the lower ends of the support rods 14 are rotatably connected to the universal balls 17, and the universal balls 17 are supported on the base 1; the support rods 14 are tightly connected to the floating installation platform 2. The support rods 14 support the floating installation platform 2. Since the floating installation platform 2 is floating, the installation of the universal balls 17 ensures the smooth movement of the floating installation platform 2 during the floating deviation of the floating installation platform 2, and avoids the occurrence of jamming.

[0047] A centering method, using a centering device to realize the installation of a shaft part and an assembly hole on a workpiece, comprises the following steps: S1, fixing the workpiece on a floating installation platform 2; S2, aligning the shaft part with the assembly hole on the workpiece, the shaft part and the centering device approaching each other, when the shaft part begins to contact the assembly hole, the floating installation platform 2 drives the workpiece to perform a certain offset translation until the shaft part is successfully inserted into the assembly hole, thereby completing the assembly of the shaft part and the assembly hole on the workpiece.

[0048] Under normal circumstances, a workpiece is placed and fixed on the floating installation platform 2. The workpiece is provided with an assembly hole that matches the shaft parts. The shaft parts and the floating installation platform 2 are close to each other. When the shaft parts begin to contact the assembly holes that match them, the floating installation platform 2 drives the workpiece to translate with a certain offset, thereby ensuring the smooth insertion of the shaft parts and the quality of the assembly. At this point, the assembly of the shaft parts is completed. Under certain circumstances, the centering device can also be inverted, that is, the upper workpiece is floating. This assembly method facilitates the assembly operation of the shaft parts and the assembly holes, and improves work efficiency.

[0049] Embodiment 3: A centering device (see attached Figure 5 ), comprising a base 1 and a floating installation platform 2, the base 1 being placed below the floating installation platform 2, at least three floating components being installed on the base 1 and the periphery of the floating installation platform 2, in this embodiment, three floating components are evenly arranged in the circumferential direction. The floating component comprises a floating buffer 3, and the floating buffer 3 is supported on the floating installation platform 2. The floating buffer 3 is a floating spring. A plurality of fastening holes 4 are arranged on the floating installation platform 2. The arrangement of the fastening holes 4 facilitates the installation and fixation of the workpiece.

[0050] The floating assembly also includes a connecting seat 5, which is fixedly connected to the base 1. The connecting seat 5 is an L-shaped structure. The connecting seat 5 is connected to a movable abutting seat 6, which is threadedly connected to the connecting seat 5, and the floating buffer 3 abuts on the abutting seat 6. A connecting column 7 is installed on the floating installation platform 2 corresponding to the floating buffer 3, and the floating buffer 3 is connected to the connecting column 7. A gap is provided between the connecting column 7 and the abutting seat 6. A connecting hole is provided on the floating installation platform 2 corresponding to the connecting column 7, and the connecting column 7 is threadedly connected and fastened to the connecting hole.

[0051] The abutment seat 6 is installed on the connection seat 5, and the floating buffer 3 abuts on the abutment seat 6, which is stable and reliable. The abutment seat 6 can be moved and adjusted to adjust the buffering force of the floating buffer 3, thereby achieving fine adjustment of the position of the floating installation platform 2, which is flexible and convenient.

[0052] A protective cover 8 is installed on the base 1. The protective cover 8 is annular in structure. The protective cover 8 covers the floating assembly. A slot 9 is provided on the protective cover 8. The edge of the slot 9 covers the edge of the floating installation platform 2. A mounting groove 10 is provided on the side wall of the protective cover 8 corresponding to the connecting seat 5. The connecting seat 5 is installed at the mounting groove 10. A flange 11 is provided on the inner edge of the upper end of the protective cover 8. The flange 11 covers the outer edge of the upper surface of the floating installation platform 2. The provision of the protective cover 8 hides the floating assembly inside, which plays a protective role for the floating assembly.

[0053] A detachable calibration shaft 12 is installed on the base 1, and a calibration hole 13 is provided on the floating installation platform 2. The calibration shaft 12 is movably plugged and connected with the calibration hole 13. The calibration shaft 12 is installed on the base 1. When the floating installation platform 2 is installed, the floating installation platform 2 and the calibration shaft 12 are sheathed together. At this time, the calibration shaft 12 calibrates and positions the floating installation platform 2 to ensure the accuracy of the installation position of the floating installation platform 2.

[0054] A plurality of support rods 14 are connected to the floating installation platform 2, and the lower ends of the support rods 14 are connected to rollers 15, and the rollers 15 are supported on the base 1; bearings 16 are installed between the support rods 14 and the floating installation platform 2. The support rods 14 support the floating installation platform 2. Since the floating installation platform 2 is floating, during the floating displacement of the floating installation platform 2, the installation of the bearings 16 and the rollers 15 ensures the smooth movement of the floating installation platform 2 and avoids the occurrence of a jamming phenomenon.

[0055] A lifting support plate 18 is installed on the base 1, a buffer spring 19 is installed between the support plate 18 and the base 1, and the floating installation platform 2 is supported on the support plate 18. A groove 20 is provided on the base 1, and the buffer spring 19 is installed in the groove 20. A convex ring 21 is provided on the inner wall of the protective cover 8, the support plate 18 is adapted to the inner wall of the convex ring 21, the upper end of the convex ring 21 is connected to the limit ring 22, and the upper end of the support plate 18 abuts on the limit ring 22.

[0056] The buffer spring 19 is installed between the support plate 18 and the base 1, so that the support plate 18 can move and buffer, and then the floating installation platform 2 supported on the support plate 18 can also be raised and lowered to buffer, so as to realize the vertical floating of the floating installation platform 2. When the shaft parts and the assembly holes on the workpiece are assembled, the shaft parts and the floating installation platform 2 are close to each other. When the positions of the shaft parts and the assembly holes are deviated, the shaft parts are pushed against the workpiece on the floating installation platform 2. While the floating installation platform 2 is floating and moving horizontally, it can also move vertically to buffer, thereby improving the self-centering speed and accelerating the assembly speed of the shaft parts and the assembly holes.

[0057] A centering method, which uses a centering device to realize the installation of shaft parts and assembly holes on a workpiece, includes the following steps: S1, the workpiece is mounted and fixed on a floating mounting platform 2; S2, the shaft parts are aligned with the assembly holes on the workpiece, the shaft parts and the centering device are close to each other, when the shaft parts begin to contact the assembly holes, the floating mounting platform 2 drives the workpiece to perform a certain offset translation, and at the same time the support plate 18 moves in the vertical direction for buffering until the shaft parts are successfully inserted into the assembly holes, thereby completing the assembly of the shaft parts and the assembly holes on the workpiece.

[0058] Under normal circumstances, a workpiece is placed and fixed on the floating installation platform 2. The workpiece is provided with an assembly hole that matches the shaft parts. The shaft parts and the floating installation platform 2 are close to each other. When the shaft parts begin to contact the assembly holes that match them, the floating installation platform 2 drives the workpiece to translate with a certain offset, thereby ensuring the smooth insertion of the shaft parts and the quality of the assembly. While the floating installation platform 2 is performing a lateral floating movement, it can also move vertically to buffer, increase the self-centering speed, and speed up the assembly speed of the shaft parts and the assembly holes. At this point, the assembly of the shaft parts is completed. Under certain circumstances, the centering device can also be inverted, that is, the upper workpiece is floating. Through this assembly method, the assembly operation of the shaft parts and the assembly holes is facilitated, and the work efficiency is improved.

[0059] Embodiment 4: A centering device (see attached Figure 6 ), comprising a base 1 and a floating installation platform 2, the base 1 being placed below the floating installation platform 2, at least three floating components being installed on the base 1 and the periphery of the floating installation platform 2, in this embodiment, three floating components are evenly arranged in the circumferential direction. The floating component comprises a floating buffer 3, and the floating buffer 3 is supported on the floating installation platform 2. The floating buffer 3 is a floating spring. A plurality of fastening holes 4 are arranged on the floating installation platform 2. The arrangement of the fastening holes 4 facilitates the installation and fixation of the workpiece.

[0060] The floating assembly also includes a connecting seat 5, which is fixedly connected to the base 1. The connecting seat 5 is an L-shaped structure. The connecting seat 5 is connected to a movable abutting seat 6, which is threadedly connected to the connecting seat 5, and the floating buffer 3 abuts on the abutting seat 6. A connecting column 7 is installed on the floating installation platform 2 corresponding to the floating buffer 3, and the floating buffer 3 is connected to the connecting column 7. A gap is provided between the connecting column 7 and the abutting seat 6. A connecting hole is provided on the floating installation platform 2 corresponding to the connecting column 7, and the connecting column 7 is threadedly connected and fastened to the connecting hole.

[0061] The abutment seat 6 is installed on the connection seat 5, and the floating buffer 3 abuts on the abutment seat 6, which is stable and reliable. The abutment seat 6 can be moved and adjusted to adjust the buffering force of the floating buffer 3, thereby achieving fine adjustment of the position of the floating installation platform 2, which is flexible and convenient.

[0062] A protective cover 8 is installed on the base 1. The protective cover 8 is annular in structure. The protective cover 8 covers the floating assembly. A slot 9 is provided on the protective cover 8. The edge of the slot 9 covers the edge of the floating installation platform 2. A mounting groove 10 is provided on the side wall of the protective cover 8 corresponding to the connecting seat 5. The connecting seat 5 is installed at the mounting groove 10. A flange 11 is provided on the inner edge of the upper end of the protective cover 8. The flange 11 covers the outer edge of the upper surface of the floating installation platform 2. The provision of the protective cover 8 hides the floating assembly inside, which plays a protective role for the floating assembly.

[0063] A detachable calibration shaft 12 is installed on the base 1, and a calibration hole 13 is provided on the floating installation platform 2. The calibration shaft 12 is movably plugged and connected with the calibration hole 13. The calibration shaft 12 is installed on the base 1. When the floating installation platform 2 is installed, the floating installation platform 2 and the calibration shaft 12 are sheathed together. At this time, the calibration shaft 12 calibrates and positions the floating installation platform 2 to ensure the accuracy of the installation position of the floating installation platform 2.

[0064] A plurality of support rods 14 are connected to the floating installation platform 2, and the lower ends of the support rods 14 are connected to rollers 15, and the rollers 15 are supported on the base 1; bearings 16 are installed between the support rods 14 and the floating installation platform 2. The support rods 14 support the floating installation platform 2. Since the floating installation platform 2 is floating, during the floating displacement of the floating installation platform 2, the installation of the bearings 16 and the rollers 15 ensures the smooth movement of the floating installation platform 2 and avoids the occurrence of a jamming phenomenon.

[0065] A support plate 18 capable of being raised and lowered is installed on the base 1, a floating plate 23 capable of being raised and lowered is installed on the base 1, a buffer spring 19 is connected between the support plate 18 and the floating plate 23, and the floating installation platform 2 is supported on the support plate 18. A rotatable gear ring 24 is installed on the base 1, a plurality of pairs of push rods 25 are arranged on the gear ring 24, a plurality of pairs of push grooves 26 are arranged on the inner wall of the floating plate 23, the ends of the push rods 25 are inserted into the push grooves 26, and the push grooves 26 include an upper inclined section and a lower inclined section. A driving motor 27 is installed on the base 1, a gear 28 is installed on the output shaft of the driving motor 27, and the gear 28 is meshed with the gear ring 24 for transmission. A groove 20 is arranged on the base 1, and the floating plate 23 is installed in the groove 20. A convex ring 21 is arranged on the inner wall of the protective cover 8, the support plate 18 is adapted to the inner wall of the convex ring 21, the upper end of the convex ring 21 is connected to the limit ring 22, and the upper end of the support plate 18 abuts against the limit ring 22.

[0066] The buffer spring 19 is installed between the support plate 18 and the base 1, so that the support plate 18 can move and buffer, and then the floating installation platform 2 supported on the support plate 18 can also be raised and lowered to buffer, so as to realize the vertical floating of the floating installation platform 2. When the shaft parts and the assembly holes on the workpiece are assembled, the shaft parts and the floating installation platform 2 are close to each other. When the positions of the shaft parts and the assembly holes are deviated, the shaft parts are pushed onto the workpiece on the floating installation platform 2. While the floating installation platform 2 is floating and moving horizontally, it can also move vertically to buffer, thereby increasing the self-centering speed and speeding up the assembly speed of the shaft parts and the assembly holes. The driving motor 27 drives the ring gear 24 to rotate, and the push rod 25 on the ring gear 24 rotates to drive the floating plate 23 to shake up and down, thereby changing the vertical force shaking of the floating installation platform 2, so as to facilitate the insertion of the shaft parts into the assembly groove.

[0067] A centering method, which uses a centering device to realize the installation of shaft parts and assembly holes on a workpiece, includes the following steps: S1, the workpiece is mounted and fixed on a floating mounting platform 2; S2, the shaft parts are aligned with the assembly holes on the workpiece, the shaft parts and the centering device are close to each other, when the shaft parts begin to contact the assembly holes, the floating mounting platform 2 drives the workpiece to perform a certain offset translation, and at the same time the support plate 18 moves in the vertical direction for buffering until the shaft parts are successfully inserted into the assembly holes, thereby completing the assembly of the shaft parts and the assembly holes on the workpiece.

[0068] Under normal circumstances, a workpiece is placed and fixed on the floating installation platform 2. The workpiece is provided with an assembly hole that matches the shaft parts. The shaft parts and the floating installation platform 2 are close to each other. When the shaft parts begin to contact the assembly holes that match them, the floating installation platform 2 drives the workpiece to translate with a certain offset, thereby ensuring the smooth insertion of the shaft parts and the quality of the assembly. While the floating installation platform 2 is performing a lateral floating movement, it can also move vertically to buffer, increase the self-centering speed, and speed up the assembly speed of the shaft parts and the assembly holes. At this point, the assembly of the shaft parts is completed. Under certain circumstances, the centering device can also be inverted, that is, the upper workpiece is floating. Through this assembly method, the assembly operation of the shaft parts and the assembly holes is facilitated, and the work efficiency is improved.

[0069] Embodiment 5: A centering device (see attached Figure 7 ), its structure is similar to any one of the embodiments 1 to 4, the main difference is that in this embodiment, a flip seat 29 and a fixed seat 30 are arranged below the base 1, one end of the flip seat 29 is rotatably mounted on the fixed seat 30, a flip piston cylinder 31 is rotatably mounted on the fixed seat 30, and the telescopic rod of the flip piston cylinder 31 is rotatably connected to the flip seat 29. A gear ring 32 is installed on the base 1, and a flip motor 33 is installed on the flip seat 29. The output shaft of the flip motor 33 is connected to the flip wheel 34, and the flip wheel 34 is meshed with the gear ring 32 for transmission. A positioning groove 35 is arranged on the fixed seat 30, the lower part of the base 1 is adapted to be installed in the positioning groove 35, the upper end of the fixed seat 30 is fastened to the positioning ring 36, and the positioning ring 36 is supported on the gear ring 32. The other structures are the same as any one of the embodiments 1 to 4.

[0070] The assembly hole on the workpiece is often not arranged vertically. At this time, the workpiece posture is adjusted by the operation of the flip piston cylinder 31 and the flip motor 33, so that the assembly hole is in a vertical state and in a coaxial position with the shaft workpiece, which is convenient for assembly operation.

[0071] The above-described embodiments are only preferred solutions of the present invention and are not intended to limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solutions described in the claims.

Claims

1. A centering device, characterized in that: The invention comprises a base and a floating installation platform. At least three floating components are installed on the periphery of the floating installation platform on the base. The floating components comprise floating buffers. The floating buffers are supported on the floating installation platform.

2. A centering device according to claim 1, characterized in that: The floating buffer is a floating spring.

3. A centering device according to claim 1, characterized in that: The floating assembly also includes a connecting seat, a movable abutting seat is connected to the connecting seat, and the floating buffer member abuts against the abutting seat.

4. A centering device according to claim 1, characterized in that: Connecting columns are installed on the floating installation platform and on the floating buffer component correspondingly, and the floating buffer component is connected to the connecting columns.

5. A centering device according to claim 1, characterized in that: A protective cover is installed on the base, the protective cover covers the floating component, a slot hole is arranged on the protective cover, and the edge of the slot hole covers the edge of the floating installation platform.

6. A centering device according to claim 1, characterized in that: A detachable calibration shaft is installed on the base, a calibration hole is arranged on the floating installation platform, and the calibration shaft is movably plug-in connected with the calibration hole.

7. A centering device according to claim 1, characterized in that: A plurality of support rods are connected to the floating installation platform, the lower ends of the support rods are connected to rollers, and the rollers are supported on a base; bearings are installed between the support rods and the floating installation platform.

8. A centering device according to claim 1, characterized in that: A plurality of fastening holes are arranged on the floating installation platform.

9. A centering device according to any one of claims 1 to 8, characterized in that: A lifting support plate is installed on the base, a buffer spring is installed between the support plate and the base, and the floating installation platform is supported on the support plate.

10. A centrifugal method, characterized in that: The installation of shaft parts and assembly holes on a workpiece is achieved by using the centering device described in any one of claims 1 to 9, comprising the following steps: S1, fixing the workpiece on a floating mounting platform; S2, aligning the shaft parts with the assembly holes on the workpiece, the shaft parts and the centering device approaching each other, and when the shaft parts begin to contact the assembly holes, the floating mounting platform drives the workpiece to perform a certain offset translation until the shaft parts are successfully inserted into the assembly holes, thereby completing the assembly of the shaft parts and the assembly holes on the workpiece.

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