Planetary Carrier Laser Welding Device

Abstract

The present application relates to a planetary carrier laser welding device, which includes a workbench, on which a chassis is arranged; a disk positioning mechanism is used to cooperate with the planetary disk of the planetary carrier; the shaft positioning mechanism includes a pressing member, the pressing member is arranged at the central axis of the chassis, and the pressing member is used to position the planetary shaft of the planetary carrier; the cage positioning mechanism includes a first positioning component and a second positioning component, the first positioning component includes a column, a first driving component and a second driving component arranged on the workbench; the second positioning component includes a pressing column and a third driving component, the third driving component is used to drive the pressing column to be movably arranged on the workbench, and the pressing column cooperates with the column to clamp the planetary cage of the planetary carrier. This planetary carrier laser welding device solves the problem of high preparation cost of the planetary carrier.

Description

Technical Field

[0001] This application relates to the field of laser welding technology, and particularly to a planetary carrier laser welding device. Background Art

[0002] As a key component in an automotive transmission, the planetary carrier requires high precision and stable quality. Its common manufacturing method is to perform precision machining on the relevant dimensions of the upper and lower surfaces of the inner cavity of the planetary carrier after welding, resulting in very high production costs. Since local machining of the upper and lower bottom plates requires machining allowances to be reserved on the upper and lower bottom plates, the material cost increases and it is not conducive to the lightweight design of the vehicle. Summary of the Invention

[0003] The purpose of this application is to provide a planetary carrier laser welding device, which solves the problem of relatively high preparation cost of the planetary carrier.

[0004] To this end, an embodiment of this application provides a planetary carrier laser welding device, including:

[0005] A workbench, on which a chassis is provided;

[0006] A workbench, on which a chassis is provided;

[0007] A disk positioning mechanism, arranged on the chassis, and the disk positioning mechanism is used to position the planetary disk of the planetary carrier;

[0008] A shaft positioning mechanism, including a pressing member, the pressing member is arranged at the central axis of the chassis, and the pressing member is used to position the planetary shaft of the planetary carrier; and

[0009] A cage positioning mechanism, including a first positioning component and a second positioning component. The first positioning component includes a column, a first driving component and a second driving component arranged on the workbench. The first driving component is used to drive the column to move along the axial direction of the chassis, and the second driving component is used to drive the column to move along the radial direction of the chassis; the second positioning component includes a pressing column and a third driving component, the third driving component is used to drive the pressing column to be movably arranged on the workbench, and the pressing column cooperates with the column to clamp the planetary cage of the planetary carrier.

[0010] In a possible implementation manner, the disk positioning mechanism includes a plurality of disk positioning members, the plurality of disk positioning members are circumferentially spaced apart on the chassis, and the disk positioning members are used to cooperate with the planetary disk of the planetary carrier.

[0011] In a possible implementation, the shaft positioning mechanism further includes a shaft driving assembly. The pressing member is provided with a plurality of pressing portions at circumferential intervals on the chassis. The plurality of pressing portions are movably arranged on the pressing member in the radial direction of the chassis. The shaft driving assembly is used to drive the movement of the plurality of pressing portions. The shaft positioning mechanism limits the planetary shaft of the planet carrier through the plurality of pressing portions.

[0012] In a possible implementation, the wall surface of the side of the pressing portion facing away from the pressing member is adapted to the inner wall surface of the planetary shaft.

[0013] In a possible implementation, the shaft driving assembly includes a shaft driving member and a shaft transmission assembly arranged on the workbench. The shaft transmission assembly includes:

[0014] A rotating member, arranged inside the pressing member. The central axis of the rotating member coincides with the central axis of the chassis. The shaft driving member is used to drive the rotation of the rotating member; and

[0015] A plurality of telescopic members, connected to the rotating member, and the plurality of telescopic members are in one-to-one correspondence and cooperation with the plurality of pressing portions. One end of the telescopic member is connected to the pressing portion. The rotation of the rotating member drives the telescopic member to move in the radial direction of the chassis.

[0016] In a possible implementation, the first positioning assembly further includes:

[0017] A positioning seat, which is assembled and connected to the workbench. A base is provided on the side of the positioning seat facing the chassis. The positioning seat is provided with a first avoidance hole penetrating in the radial direction of the chassis; and

[0018] A sliding seat, arranged on the base. The second driving assembly is used to drive the sliding seat to move in the radial direction of the chassis. The upright column and the first driving assembly are both arranged on the sliding seat.

[0019] In a possible implementation, the third driving assembly includes:

[0020] A swing arm, a second avoidance hole is penetrated through the middle position of the swing arm in the thickness direction of the swing arm itself. The positioning seat is arranged in the second avoidance hole. The swing arm is rotatably connected to the positioning seat. One end of the swing arm is connected to the pressing column; and

[0021] A third driving member, connected to the other end of the swing arm. The third driving member is used to drive the rotation of the swing arm.

[0022] In a possible implementation, a swing rod is provided on the sliding seat. The swing rod is arranged on the side of the column away from the planetary shaft. One end of the swing rod is rotatably arranged on the sliding seat, and the other end of the swing rod is used to abut against the circumferential side of the planetary cage.

[0023] In a possible implementation, the column is movably arranged on the first driving assembly, and the pressing column is movably arranged on the third driving assembly to adjust the flatness and parallelism between the planes on the opposite sides of the column and the pressing column.

[0024] In a possible implementation, a plurality of cage positioning mechanisms are evenly spaced in the circumferential direction of the chassis.

[0025] During the welding process of the planet carrier, first place the planetary disk of the planet carrier on the chassis, and limit and fix the position of the planetary disk through the disk positioning mechanism; then place the planetary shaft of the planet carrier on the chassis, and limit and fix the position of the planetary shaft through the abutting member; finally, move the column to above the planetary disk through the first positioning assembly, and move a certain distance away from the planetary disk along the axis direction of the chassis. Then place the planetary cage of the planet carrier on the chassis, support the planetary cage through the column, and drive the movement of the pressing column to abut against the upper surface of the planetary cage. Fix the planetary cage through the mutual cooperation of the column and the support column, and then weld and fix the planetary cage on the planetary disk through welding. In this way, not only the welding quality can be guaranteed, but also the height of the welding position can be determined through the movement of the column along the axis direction of the chassis. After welding, the process capability of the upper and lower surface dimensions of the inner cavity of the planet carrier is good, and the spacing tolerance between the two planes is within the specified range. After welding, there is no need to perform precision machining on the relevant dimensions of the upper and lower surfaces of the inner cavity of the planet carrier, reducing production costs. Description of the Drawings

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings in the embodiments or the prior art descriptions. Obviously, the following drawings are some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. In addition, in the drawings, the same components use the same reference numerals, and the drawings are not drawn according to the actual scale.

[0027] Figure 1 Shows a schematic structural diagram of a planet carrier laser welding device provided by an embodiment of the present application;

[0028] Figure 2 Shows Figure 1 The schematic structural diagram for embodying the first positioning assembly;

[0029] Figure 3Shown Figure 1 in a top view;

[0030] Figure 4 Shown Figure 1 a schematic structural diagram for embodying the cage positioning mechanism in

[0031] Figure 5 Shown Figure 1 a schematic structural diagram for embodying the planetary disc structure in

[0032] Figure 6 Shown Figure 1 a schematic structural diagram for embodying the disc positioning mechanism in

[0033] Explanation of reference numerals:

[0034] 1, planet carrier; 11, planetary disc; 12, planetary shaft; 13, planetary cage;

[0035] 2, workbench; 21, chassis;

[0036] 3, disc positioning mechanism; 4, shaft positioning mechanism;

[0037] 5, cage positioning mechanism; 51, first positioning component;

[0038] 511, column; 5111, support; 5112, adjustment disc; 5113, notch;

[0039] 512, second driving component; 513, positioning seat; 514, first avoidance hole; 515, sliding seat; 516, swing rod;

[0040] 52, second positioning component; 521, pressing column; 522, third driving component; 5221, swing arm; 5222, third driving part; 5223, second avoidance hole. Detailed implementation manners

[0041] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some but not all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the scope of protection of the present application.

[0042] As Figures 1-6 shown, an embodiment of the present application provides a laser welding device for a planet carrier 1, and the laser welding device for the planet carrier 1 includes:

[0043] a workbench 2, on which a chassis 21 is provided;

[0044] The disk positioning mechanism 3 is arranged on the chassis 21 and is used to cooperate with the planetary disk 11 of the planet carrier 1;

[0045] The shaft positioning mechanism 4 includes a pressing member arranged at the central axis of the chassis 21, and the pressing member is used to position the planetary shaft 12 of the planet carrier 1; and

[0046] The cage positioning mechanism 5 includes a first positioning component 51 and a second positioning component 52. The first positioning component 51 includes a column 511 arranged on the workbench 2, a first driving component and a second driving component 512. The first driving component is used to drive the column 511 to move along the axial direction of the chassis 21, and the second driving component 512 is used to drive the column 511 to move along the radial direction of the chassis 21; the second positioning component 52 includes a pressing column 521 and a third driving component 522. The third driving component 522 is used to drive the pressing column 521 to be movably arranged on the workbench 2, and the pressing column 521 cooperates with the column 511 to clamp the planetary cage 13 of the planet carrier 1.

[0047] During the welding process of the planet carrier 1, first, the planetary disk 11 of the planet carrier 1 is placed on the chassis 21, and the positions of the planetary disk 11 are limited and fixed by a plurality of disk positioning mechanisms 3 on the chassis 21; then, the planetary shaft 12 of the planet carrier 1 is placed on the chassis 21, and the pressing member is cooperated with the planetary shaft 12 to limit and fix the planetary shaft 12; finally, the column 511 is moved above the planetary disk 11 by the first positioning component 51 and moved a certain distance away from the planetary disk 11 along the axial direction of the chassis 21, and then the planetary cage 13 of the planet carrier 1 is placed on the chassis 21. The column 511 is used to support the planetary cage 13, and the movement of the pressing column 521 is driven to abut against the upper surface of the planetary cage 13. The planetary cage 13 is fixed by the mutual cooperation of the column 511 and the column, and then the planetary cage 13 is welded and fixed on the planetary disk 11 by welding. In this way, not only the welding quality can be guaranteed, but also the height of the welding position is determined by the movement of the column 511 along the axial direction of the chassis 21. After welding, the process capability of the upper and lower surface dimensions of the inner cavity of the planet carrier 1 is good, the spacing tolerance between the two planes is within the specified range, and it is not necessary to perform precision machining on the relevant dimensions of the upper and lower surfaces of the inner cavity of the planet carrier 1 after welding, reducing the production cost.

[0048] Specifically, the disk positioning mechanism 3 includes a disk positioning member arranged on the chassis 21, and a limiting member is arranged at the corresponding position of the planetary disk 11 of the planet carrier 1 and the disk positioning member. The planetary disk 11 is limited and fixed in the horizontal plane direction by matching the limiting member of the planetary disk 11 with the disk positioning member on the chassis 21.

[0049] Optionally, a plurality of disk positioning members are provided, and the plurality of disk positioning members are circumferentially spaced apart on the chassis 21; the plurality of disk positioning members are used to ensure the stability and accuracy of the positioning of the planetary disk 11.

[0050] Specifically, the shaft positioning mechanism 4 includes a pressing member disposed in the middle of the chassis 21 and a shaft driving assembly. The pressing member extends along the axis direction of the chassis 21. A plurality of pressing portions are circumferentially spaced apart on the pressing member. The plurality of pressing portions are movably disposed on the pressing member in the radial direction of the chassis 21. The shaft driving assembly is used to drive the movement of the plurality of pressing portions; the shaft positioning mechanism 4 limits the planetary shaft 12 of the planetary carrier 1 through the plurality of pressing portions; the shaft driving assembly drives the movement of the plurality of pressing portions, so as to tighten and fix the planetary shaft 12.

[0051] In some embodiments, the wall surface of the pressing portion facing away from the pressing member is adapted to the inner wall surface of the planetary shaft 12. By setting the outer wall surface of the pressing portion and the inner wall surface of the planetary shaft 12 to be in a mutually cooperating shape, when the pressing portion is tightened to fix the planetary shaft 12, the pressing portion can contact the planetary shaft 12 with the largest area, thereby ensuring the reliability of the pressing portion to fix the planetary shaft 12.

[0052] In some embodiments, the shaft driving assembly includes a shaft driving member disposed on the workbench 2 and a shaft transmission assembly. The shaft transmission assembly includes:

[0053] A rotating member disposed inside the pressing member. The central axis of the rotating member coincides with the central axis of the chassis 21. The shaft driving member is used to drive the rotation of the rotating member; and

[0054] A plurality of telescopic members connected to the rotating member, and the plurality of telescopic members are in one-to-one correspondence with the plurality of pressing portions. One end of the telescopic member is connected to the pressing portion. The rotation of the rotating member drives the telescopic member to move in the radial direction of the chassis 21.

[0055] By driving the rotation of the rotating member through the shaft driving member, under the transmission action of the telescopic member, the rotation of the rotating member will drive the pressing portion to move in the radial direction of the chassis 21. By connecting the plurality of telescopic members to the rotating member, the rotation of the rotating member will drive the synchronous movement of the plurality of telescopic members, so that the plurality of pressing portions can move synchronously, so as to ensure the stability of the pressing portion to fix the planetary shaft 12.

[0056] As Figures 1-6 shown, in some embodiments, the first positioning assembly 51 further includes:

[0057] A positioning seat 513, which is assembled and connected to the workbench 2. A base is provided on one side of the positioning seat 513 facing the chassis 21. The positioning seat 513 is provided with a first avoidance hole 514 penetrating along the radial direction of the chassis 21; and

[0058] A sliding seat 515 is arranged on the base. The second driving component 512 is used to drive the sliding seat 515 to move along the radial direction of the chassis 21. The column 511 and the first driving component are both arranged on the sliding seat 515.

[0059] A slide rail is arranged on the base, and the extending direction of the slide rail is parallel to the moving direction of the sliding seat 515. A sliding groove matching with the slide rail is arranged on the sliding seat 515. The cooperation of the slide rail and the sliding groove ensures the stability of the movement of the sliding seat 515. The first driving component is arranged on the sliding seat 515, and the column 511 is arranged on the first driving component; therefore, the movement of the sliding seat 515 will drive the synchronous movement of the column 511.

[0060] The first driving component includes a first air cylinder, which is detachably fixed on the sliding seat 515 by bolts. The column 511 is fixedly connected to the piston rod of the first air cylinder, and the piston rod of the first air cylinder is arranged vertically; the movement of the column 511 is driven by the expansion and contraction of the piston rod of the first air cylinder, so as to realize the lifting of the column 511.

[0061] The second driving component 512 includes a second air cylinder, which is detachably fixed on the base by bolts. The piston rod of the second air cylinder is fixedly connected to the sliding seat 515; therefore, the expansion and contraction of the piston rod of the second air cylinder will drive the reciprocating movement of the sliding seat 515.

[0062] In some embodiments, the third driving component 522 includes:

[0063] A swing arm 5221, a second avoidance hole 5223 is penetrated along the thickness direction of the middle position of the swing arm 5221. The positioning seat 513 is arranged in the second avoidance hole 5223. The swing arm 5221 is rotatably connected to the positioning seat 513. One end of the swing arm 5221 is connected to the pressing column 521; and

[0064] A third driving member 5222 is connected to the other end of the swing arm 5221. The third driving member 5222 is used to drive the rotation of the swing arm 5221.

[0065] The third driving member 5222 includes a third air cylinder, which is hinged on the workbench 2. The piston rod of the third air cylinder is hinged to the end of the swing arm 5221 far from the pressing column 521; therefore, the expansion and contraction of the piston rod of the third air cylinder will drive the up and down reciprocating swing of the swing arm 5221.

[0066] Specifically, the swing arm 5221 and the positioning seat 513 are rotationally connected through a rotating assembly. The rotating assembly includes a rotating pin. One end of the rotating pin is fixedly connected to the swing arm 5221, and the other end of the rotating pin penetrates the positioning seat 513 and is connected with a positioning block. There are two rotating assemblies, and the two rotating pins of the two rotating assemblies are respectively connected to the positioning seats 513 on both sides of the first avoidance hole 514. The rotating pin is connected to the positioning seat 513 through the positioning block, and the swing arm 5221 can be rotatably arranged on the positioning seat 513 through the through-fit of the rotating pin and the positioning seat 513.

[0067] Optionally, a plurality of rotating holes are arranged at intervals along the axial direction of the chassis 21 on the positioning seat 513. The rotating holes are used for cooperating with the rotating pins. The rotating pins pass through the rotating holes to be connected with the positioning blocks, and the rotating pins and the positioning blocks are detachably connected; so that the rotating pins can selectively cooperate with the rotating holes at different heights. Of course, the detachable connection between the rotating pin and the positioning block includes plugging and screwing or other methods.

[0068] In some embodiments, the column 511 is movably arranged on the first driving assembly, and the pressing column 521 is movably arranged on the third driving assembly 522 to adjust the flatness and parallelism between the planes on the opposite sides of the column 511 and the pressing column 521; by adjusting the column 511 or the pressing column 521 or adjusting the column 511 and the pressing column 521 simultaneously, the flatness and parallelism of the two planes on the opposite sides of the column 511 and the pressing column 521 are adjusted, and further the flatness and parallelism of the surface of the planet carrier 1 clamped by the column 511 and the pressing column 521 are ensured, so as to ensure the welding quality.

[0069] Optionally, the column 511 is rotatably arranged on the first driving assembly, and the pressing column 521 is rotatably arranged on the third driving assembly 522; or the column 511 is detachably arranged on the first driving assembly, and the pressing column 521 is detachably arranged on the third driving assembly 522, and the column 511 and / or the pressing column 521 can be adjusted during installation.

[0070] In some embodiments, the pressing column 521 is detachably arranged on the swing arm 5221. The pressing column 521 includes a connecting end, and the connecting end is detachably arranged on the swing arm 5221; different pressing columns 521 can be replaced according to different welding requirements. In this application, the detachable connection is not described in detail, and the foregoing detachable connection includes but is not limited to screwing, plugging or embedding.

[0071] Such as Figures 1-6As shown, in some embodiments, the column 511 includes a support 5111 disposed on the sliding seat 515 and an adjustment disk 5112 disposed on the support 5111. The adjustment disk 5112 is detachably disposed on the support 5111, and the side of the adjustment disk 5112 away from the support 5111 is used to cooperate with the planetary cage 13. By detachably disposing the adjustment disk 5112 on the support 5111, after the column 511 supports the planetary cage 13, the parallelism and flatness of the planetary cage 13 can be ensured by replacing the adjustment disk 5112.

[0072] In some embodiments, the adjustment disk 5112 is connected to the support 5111 by a plurality of suction attachments through negative pressure adsorption, and the negative pressure of each suction attachment is adjusted by a control member. The adjustment disk is fixed by negative pressure through a plurality of suction attachments to ensure the reliability of the installation of the adjustment disk 5112. Exemplarily, the suction attachment includes a suction cup disposed on the support 5111, or the suction attachment is a suction hole opened on the support 5111.

[0073] Optionally, the negative pressure of each suction attachment is adjusted by a control member, and the negative pressure of all suction attachments can be controlled simultaneously by the control member. Similarly, there may also be a plurality of control members, and the plurality of control members are arranged in one-to-one correspondence with the plurality of suction attachments. By adjusting the negative pressure suction of each suction attachment through the plurality of control members, the installation and disassembly of the adjustment disk 5112 can be ensured, and at the same time, the adjustment disk 5112 can be adjusted to ensure the flatness and parallelism of the adjustment disk after installation.

[0074] In some embodiments, two notches 5113 are symmetrically disposed on the adjustment disk 5112, and the notch 5113 is U-shaped based on the orthographic projection of the support 5111; the two notches 5113 facilitate the user to pick up the adjustment disk 5112. A negative pressure connection port may also be opened on the support 5111, and the negative pressure connection port is communicated with the negative pressure port; the notch 5113 penetrates through the adjustment disk 5112 along the axial direction of the adjustment disk 5112. When the adjustment disk is installed on the support 5111, one of the notches 5113 corresponds to the negative pressure connection port; so that the negative pressure connection port can be connected to the negative pressure member through the notch 5113, which is convenient for connection, reduces the length of the pipeline connection, and reduces the loss.

[0075] Optionally, the negative pressure member is communicated with the negative pressure connection port through a negative pressure pipeline; one end of the negative pressure pipeline is provided with a negative pressure plug, and the negative pressure plug is a right-angle plug. The negative pressure pipeline is connected to the negative pressure connection port through the negative pressure plug; and the height of the negative pressure plug is less than the thickness of the adjustment disk 5112; so that after connection, the negative pressure plug will not contact the planetary cage 13, thereby ensuring the parallelism and flatness of the planetary cage 13 during welding.

[0076] In some embodiments, a swing rod 516 is provided on the sliding seat 515. The swing rod 516 is disposed on a side of the column 511 away from the planetary shaft 12. One end of the swing rod 516 is rotatably provided on the sliding seat 515, and the other end of the swing rod 516 is for abutting against the circumferential side of the planetary cage 13. The rotation of the swing rod 516 is used to further limit the planetary cage 13, thereby ensuring the stability of the components of the planet carrier 1 during the welding process.

[0077] As Figures 1-6 shown, in some embodiments, a plurality of cage positioning mechanisms 5 are evenly spaced in the circumferential direction of the chassis 21. The plurality of cage positioning mechanisms 5 are used to enhance the stability of the limitation on the planetary cage 13. Optionally, four cage positioning mechanisms 5 are provided, and the four cage positioning mechanisms 5 are evenly spaced in the circumferential direction of the chassis 21. The planetary cage 13 is fixedly welded to the planetary disk 11 through four feet. The four cage positioning mechanisms 5 can fix the planetary cage 13 near the four feet. At the same time, the planetary cage 13 is supported by a plurality of columns 511, which can further ensure the dimensions, flatness, and parallelism of the upper and lower surfaces of the inner cavity of the planet carrier 1 after welding. At the same time, due to the movement of the column 511 in the axial direction of the chassis 21, after the planet carrier 1 is welded, the column 511 can be taken out of the planet carrier 1 by moving in the radial direction of the chassis 21, which is convenient for operation.

[0078] In summary, for the laser welding device of the planet carrier 1 provided in this embodiment, the upper and lower surfaces of the inner cavity of the planet carrier 1 after welding do not need to be precision machined, which reduces the increase in material cost and is conducive to the lightweight design of the automobile. The operator can complete the welding work of the planet carrier 1 with one-time clamping, that is, a kind of planet carrier 1 only needs to be welded once, and no further finishing is required subsequently, and it can still meet the relevant dimensional accuracy requirements, reducing the manufacturing cost. The welded workpiece is easy to take out and can be adapted to mass production. The process capability of the dimensions of the upper and lower surfaces of the inner cavity of the planet carrier 1 after welding is good. The spacing tolerance between the two planes is within the specified range, the parallelism can be controlled within the specified range, and the flatness can be controlled within the specified range, and no defective products are generated.

[0079] It should be noted that the "one embodiment", "embodiment", "exemplary embodiment", "some embodiments", etc. mentioned in the specification indicate that the described embodiment may include specific features, structures, or characteristics, but not necessarily every embodiment includes the specific feature, structure, or characteristic. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when combining an embodiment to describe a specific feature, structure, or characteristic, implementing such a feature, structure, or characteristic in combination with other embodiments, whether explicitly or implicitly described, is within the knowledge scope of those skilled in the art.

[0080] It should be easily understood that the terms "on", "above", and "over" in this disclosure should be interpreted in the broadest manner, such that "on" not only means "directly on something", but also includes the meaning of "on something" with intermediate features or layers therebetween, and "above" or "over" not only include the meaning of "above or over something", but may also include the meaning of "above or over something" with no intermediate features or layers therebetween (i.e., directly on something).

[0081] In addition, for ease of description, spatial relative terms may be used in this document, such as "below", "beneath", "under", "above", "over", etc., to describe the relationship of one element or feature to another element or feature as shown in the figures. Spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the drawings. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatial relative descriptive terms used in this document may be interpreted accordingly.

[0082] It should be noted that in this document, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprise", "include", or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or device that comprises a series of elements includes not only those elements, but also other elements not expressly listed, or elements that are inherent to such process, method, article, or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article, or device that comprises the element.

[0083] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A planet carrier laser welding device, characterized in that Comprising: A workbench, on which a chassis is provided; A disk positioning mechanism, arranged on the chassis, and the disk positioning mechanism is used for positioning the planetary disk of the planet carrier; A shaft positioning mechanism, including a pressing member, the pressing member is arranged at the central axis of the chassis, and the pressing member is used for positioning the planetary shaft of the planet carrier; And A cage positioning mechanism, including a first positioning component and a second positioning component, the first positioning component includes a column, a first driving component and a second driving component arranged on the workbench, the first driving component is used for driving the column to move along the axial direction of the chassis, and the second driving component is used for driving the column to move along the radial direction of the chassis; the second positioning component includes a pressing column and a third driving component, the third driving component is used for driving the pressing column to be movably arranged on the workbench, and the pressing column cooperates with the column to clamp the planetary cage of the planet carrier.

2. The planet carrier laser welding device according to claim 1, characterized in that The disk positioning mechanism includes a plurality of disk positioning members, the plurality of disk positioning members are circumferentially spaced apart on the chassis, and the disk positioning members are used for cooperating with the planetary disk of the planet carrier.

3. The planet carrier laser welding device according to claim 1, characterized in that, The shaft positioning mechanism further includes a shaft driving component, the pressing member is provided with a plurality of pressing portions at circumferential intervals on the chassis, the plurality of pressing portions are movably arranged on the pressing member along the radial direction of the chassis, and the shaft driving component is used for driving the movement of the plurality of pressing portions; the shaft positioning mechanism limits the planetary shaft of the planet carrier through the plurality of pressing portions.

4. The planetary carrier laser welding device according to claim 3, wherein, The wall surface of the side of the pressing portion facing away from the pressing member is adapted to the inner wall surface of the planetary shaft.

5. The planet carrier laser welding device according to claim 3, characterized in that, The shaft driving component includes a shaft driving member and a shaft transmission component arranged on the workbench, and the shaft transmission component includes: A rotating member, arranged inside the pressing member, the central axis of the rotating member coincides with the central axis of the chassis, and the shaft driving member is used for driving the rotation of the rotating member; and A plurality of telescopic members, connected to the rotating member, and the plurality of telescopic members are in one-to-one correspondence with the plurality of pressing portions, one end of the telescopic member is connected to the pressing portion, and the rotation of the rotating member drives the telescopic member to move along the radial direction of the chassis.

6. The planetary carrier laser welding device according to claim 1, characterized in that, The first positioning component further includes: A positioning seat, assembled and connected to the workbench, a base is arranged on the side of the positioning seat facing the chassis, and a first avoidance hole is axially penetrated through the positioning seat along the radial direction of the chassis; and A sliding seat, arranged on the base, the second driving component is used for driving the sliding seat to move along the radial direction of the chassis, and the column and the first driving component are both arranged on the sliding seat.

7. The planetary carrier laser welding device according to claim 6, characterized in that, The third driving component includes: A swing arm, a second avoidance hole is axially penetrated through the middle position of the swing arm along its own thickness direction, the positioning seat is arranged in the second avoidance hole, the swing arm is rotatably connected with the positioning seat, and one end of the swing arm is connected to the pressing column; and A third driving member, connected to the other end of the swing arm, and the third driving member is used for driving the rotation of the swing arm.

8. The planet carrier laser welding device according to claim 6, characterized in that, A swing rod is arranged on the sliding seat. The swing rod is arranged on the side of the column away from the planetary shaft. One end of the swing rod is rotatably arranged on the sliding seat, and the other end of the swing rod is used to abut against the circumferential side of the planetary cage.

9. The planetary carrier laser welding device according to claim 1, characterized in that, The column is movably arranged on the first driving component, and the pressing column is movably arranged on the third driving component to adjust the flatness and parallelism between the planes on the opposite sides of the column and the pressing column.

10. The planetary carrier laser welding device according to claim 1, wherein, A plurality of the cage positioning mechanisms are uniformly arranged at intervals in the circumferential direction of the chassis.

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