Jig for welding double confluence rows

Abstract

The utility model discloses a jig for welding double bus bars, which is used for clamping an inner side bus bar and an outer side bus bar on a stator assembly and comprises a fixed seat, a lifting seat, an upper chuck, a lower chuck, a material supporting mechanism and a locking action mechanism, wherein the stator assembly is provided with a plurality of first wire ends and a plurality of second wire ends, the outer busbar is provided with a first lead, the inner busbar is provided with a second lead, and the fixed seat is provided with a left positioning part and a right positioning part. When the fixing seat is positioned and assembled on the stator assembly, a left positioning groove is formed between the left positioning part and the stator assembly, and a right positioning groove is formed between the right positioning part and the stator assembly. According to the utility model, the inner side busbar and the outer side busbar can be clamped on the stator assembly at the same time, the inner side busbar and the outer side busbar can be welded at the same time through one-time clamping, the processing time can be saved, and the welding processing efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a jig for double busbar welding. BACKGROUND

[0002] At present, busbars need to be welded on stator assemblies in flat wire motors, and when welding busbars, a tool jig is needed to clamp the busbar and the stator assembly together and then send it into a welding device for welding processing. For example, a flat wire motor stator busbar welding tool is disclosed in Chinese patent No. CN216298378U. With the continuous development and improvement of flat wire motors, an inner busbar and an outer busbar need to be welded on the stator assembly in some flat wire motors, but the existing tool jig cannot clamp the inner busbar and the outer busbar on the stator assembly at the same time, so it needs to be clamped and welded twice, which wastes processing time and affects processing efficiency. SUMMARY

[0003] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a jig for double busbar welding, which can clamp an inner busbar and an outer busbar on a stator assembly at the same time, can realize one-time clamping and simultaneous welding of the inner busbar and the outer busbar, and can save processing time and improve the efficiency of welding processing.

[0004] To solve the above technical problems, the technical scheme of the utility model is as follows: a jig for double busbar welding, which is used to clamp an inner busbar and an outer busbar on a stator assembly, comprises a fixed seat, a lifting seat, an upper chuck, a lower chuck, a material supporting mechanism and a locking action mechanism.

[0005] The stator assembly has a plurality of first wire heads and a plurality of second wire heads;

[0006] The outer busbar has a first lead wire corresponding to the first wire head and used for welding with the corresponding first wire head;

[0007] The inner busbar has a second lead wire corresponding to the second wire head and used for welding with the corresponding second wire head;

[0008] The fixed seat has a left positioning part and a right positioning part, and when the fixed seat is positioned and assembled on the stator assembly, a left positioning groove is formed between the left positioning part and the stator assembly and a right positioning groove is formed between the right positioning part and the stator assembly, and the outer busbar is used to be fitted and installed in the left positioning groove and the right positioning groove to make the first lead wire contact with the corresponding first wire head;

[0009] The upper chuck and the lower chuck are stacked and coaxially connected to the lifting seat;

[0010] The upper clamp disc is provided with a plurality of first upper clamp holes and a plurality of second upper clamp holes, and the lower clamp disc is provided with a plurality of first lower clamp holes and a plurality of second lower clamp holes, the first upper clamp holes are aligned with the corresponding first lower clamp holes, and the second upper clamp holes are aligned with the corresponding second lower clamp holes;

[0011] The material supporting mechanism is connected to the lifting seat and is used to act to support the inner bus bars when the second lead wires on the inner bus bars are sequentially inserted into the corresponding second lower clamp holes and the corresponding second upper clamp holes from bottom to top;

[0012] The lifting seat is slidingly connected to the fixed seat in the up-down direction and has a raised position of sliding upward to a position and a lowered position of sliding downward to a position, and the lifting seat is used to sequentially insert the second wire heads into the corresponding second lower clamp holes and the corresponding second upper clamp holes from bottom to top and to insert the first wire heads and the first lead wires into the corresponding first lower clamp holes and the corresponding first upper clamp holes respectively when sliding to the lowered position;

[0013] The locking action mechanism is connected to the upper clamp disc and the lower clamp disc respectively and is used to drive the upper clamp disc and the lower clamp disc to reversely rotate to a clamping position and then keep the positions of the upper clamp disc and the lower clamp disc, so as to clamp the corresponding first wire heads and the corresponding first lead wires through the first upper clamp holes and the first lower clamp holes and to clamp the corresponding second wire heads and the corresponding second lead wires through the second upper clamp holes and the second lower clamp holes.

[0014] Further, the locking action mechanism includes a first handle, a first locking block, a first locking pin, a second handle, a second locking block and a second locking pin;

[0015] The first handle is connected to the upper clamp disc;

[0016] The first locking block is connected to the lifting seat, and the first locking block is provided with a first locking hole;

[0017] The first locking pin is connected to the first handle, and a pin head in the first locking pin is used to extend into the first locking hole to lock and keep the position of the upper clamp disc after the first handle drives the upper clamp disc to rotate to a clamping position;

[0018] The second handle is connected to the lower clamp disc;

[0019] The second locking block is connected to the lifting seat, and the second locking block is provided with a second locking hole below;

[0020] The second locking pin is connected to the second handle, and a pin head in the second locking pin is used to extend into the second locking hole to lock the position of the lower chuck after the second handle drives the lower chuck to rotate to the clamping position.

[0021] Further, the jig for double bus bar welding further comprises at least two first bolts and at least two second bolts;

[0022] The lifting seat is provided with a first arc-shaped groove and a second arc-shaped groove;

[0023] The first bolt is threadedly connected to the first locking block after penetrating through the first arc-shaped groove, so as to lock and connect the first locking block to the lifting seat;

[0024] The second bolt is threadedly connected to the second locking block after penetrating through the second arc-shaped groove, so as to lock and connect the second locking block to the lifting seat.

[0025] Further, the material supporting mechanism comprises a supporting plate, the supporting plate is provided with a material supporting part, and the supporting plate is slidingly connected to the lifting seat and is used to slide to extend the material supporting part below the inner bus bar so as to support the inner bus bar.

[0026] Further, the lifting seat is slidingly connected to the fixing seat through a guide sleeve and a guide column, at least one guide column is connected to the lifting seat, at least one guide sleeve is connected to the fixing seat, and the guide column is slidingly connected to the corresponding guide sleeve;

[0027] At least two latches are connected to the fixing seat, and the stator assembly is provided with latching holes corresponding to the latches, the latches are used to be inserted into the latching holes when the fixing seat is assembled on the stator assembly to position the fixing seat;

[0028] At least two abutting pins are further connected to the fixing seat, and the abutting pins are used to abut against the end face of the stator assembly when the fixing seat is assembled on the stator assembly.

[0029] Further, the jig for double bus bar welding further comprises an anti-falling rod, an anti-falling pin and a supporting rod;

[0030] The upper end of the anti-falling rod is connected to the lifting seat;

[0031] The anti-falling pin is connected to the fixing seat, and a pin head in the anti-falling pin is used to extend below the anti-falling rod and support the anti-falling rod when the lifting seat slides upward to the lifting position;

[0032] The upper end of the supporting rod is connected to the lifting seat, and the lower end of the supporting rod is used to abut against the fixed seat when the lifting seat slides downward to the lowered position to support the lifting seat.

[0033] Further, the outer bus bar is provided with a terminal, and the fixed seat is connected with a positioning mechanism for supporting and positioning the terminal.

[0034] The positioning mechanism comprises a base assembly, a positioning pin, a floating plate, a supporting plate pin and a limiting mechanism.

[0035] The base assembly is connected to the fixed seat.

[0036] The positioning pin is slidably arranged in the base assembly in the up-down direction.

[0037] The floating plate is connected to the lower end of the positioning pin, and the floating plate is used to drive the positioning pin to rise upward when the floating plate is in position, so that the upper end of the positioning pin is inserted into a positioning hole in the terminal and supports the terminal.

[0038] The supporting plate pin is connected to the base assembly, and the pin head of the supporting plate pin is used to protrude below the floating plate when the floating plate is in position and support the floating plate.

[0039] The limiting mechanism is connected to the base assembly and is used to abut against the floating plate when the floating plate is in position to support the floating plate.

[0040] Further, the base assembly comprises a connecting seat, a rotating seat and a locking bolt.

[0041] The connecting seat is connected to the fixed seat, and a third arc-shaped groove is arranged in the connecting seat.

[0042] The rotating seat is rotatably connected to the connecting seat, and the center of the third arc-shaped groove coincides with the rotating shaft of the rotating seat.

[0043] The locking bolt is threadedly connected to the rotating seat after passing through the third arc-shaped groove, and the locking bolt is used to lock and fix the rotating seat after the rotating seat is rotated to a suitable angle.

[0044] The positioning pin is slidably arranged in the rotating seat in the up-down direction, and the supporting plate pin and the limiting mechanism are both connected to the rotating seat.

[0045] Further, the limiting mechanism comprises a limiting screw and a limiting nut.

[0046] The floating plate is provided with a through hole, the upper end of the limiting screw is connected to the rotating seat, and the lower end of the limiting screw passes through the through hole.

[0047] The limiting nut is connected to the lower end of the limiting screw and is located below the floating plate, and is used to abut against the bottom of the floating plate when the floating plate is lowered into position, thereby supporting the floating plate;

[0048] The floating plate and the rotating seat are further provided with reset springs sleeved outside the positioning pins and used to drive the floating plate to move downward.

[0049] Further, the outer bus bar has three terminals, and the positioning pins are provided with two;

[0050] The two positioning pins are slidably arranged on the rotating seat in the up-down direction;

[0051] The floating plate is connected to the lower ends of the two positioning pins, and is used to drive the two positioning pins to rise upward when the floating plate is raised into position, thereby making one of the positioning pins inserted into the positioning hole in the leftmost terminal and supporting the leftmost terminal, and making the other positioning pin inserted into the positioning hole in the rightmost terminal and supporting the rightmost terminal;

[0052] The rotating seat is further provided with a supporting step used to support the middle terminal.

[0053] After the technical scheme is applied, firstly, the fixing seat is positioned and assembled to the stator assembly, the lifting seat is slid upward to the raised position, the outer busbar is clamped and installed in the left positioning groove and the right positioning groove, after the outer busbar is installed in place, the first lead wire is in contact with the corresponding first wire head, the second lead wire on the inner busbar is sequentially inserted into the corresponding second lower clamping hole and the corresponding second upper clamping hole from bottom to top, after being inserted in place, the inner busbar is held by the material supporting mechanism, and then the installation of the inner busbar is completed, then the lifting seat is slid downward to the lowered position, at this time, the second wire head extends into the corresponding second lower clamping hole and the corresponding second upper clamping hole and is in contact with the second lead wire on the inner busbar, meanwhile, the first wire head and the first lead wire extend into the corresponding first lower clamping hole and the corresponding first upper clamping hole respectively, then the upper clamping disc and the lower clamping disc are driven by the locking action mechanism to rotate reversely to the clamping position, then the position of the upper clamping disc and the lower clamping disc is kept, at this time, the first upper clamping hole and the first lower clamping hole can clamp the corresponding first wire head and the corresponding first lead wire together, and the second upper clamping hole and the second lower clamping hole can clamp the corresponding second wire head and the corresponding second lead wire together, then the first wire head and the first lead wire are welded and connected by being sent into a welding device for welding processing, the second wire head and the second lead wire are welded and connected, the inner busbar and the outer busbar are clamped on the stator assembly at the same time, the inner busbar and the outer busbar can be welded at the same time by one clamping, the welding processing time is saved, and the welding processing efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0054] Figure 1 It is a structure schematic view when the stator assembly, the inner busbar and the outer busbar of the utility model are assembled together.

[0055] Figure 2 It is a structure schematic view when the jig for double busbar welding of the utility model is installed on the stator assembly and the lifting seat is located in the raised position.

[0056] Figure 3 It is a structure schematic view when the jig for double busbar welding of the utility model is installed on the stator assembly and the lifting seat is located in the lowered position.

[0057] Figure 4 It is a structure schematic view of the jig for double busbar welding of the utility model.

[0058] Figure 5 It is another angle structure schematic view of the jig for double busbar welding of the utility model.

[0059] Figure 6The utility model discloses a lifting seat, upper chuck, lower chuck, material supporting mechanism and locking action mechanism's structural diagram.

[0060] Figure 7 The utility model discloses a lifting seat, upper chuck, lower chuck, material supporting mechanism and locking action mechanism's assembly explosion map.

[0061] Figure 8 The utility model discloses a positioning mechanism's structural diagram.

[0062] Figure 9 The utility model discloses a positioning mechanism's sectional view. DETAILED DESCRIPTION

[0063] In order to make the content of the utility model more easily be clearly understood, below according to specific embodiment and combining with the drawing, the utility model is further explained in detail.

[0064] As Figures 1-7 The utility model discloses a jig for double busbar welding, it is used for clamping inside busbar 1 and outside busbar 2 on stator assembly, it includes fixed seat 3, lifting seat 4, upper chuck 5, lower chuck 6, material supporting mechanism and locking action mechanism.

[0065] The stator assembly has a plurality of first wire head 7 and a plurality of second wire head 8.

[0066] The outside busbar 2 has first lead 9 corresponding with the first wire head 7 and used for welding with corresponding first wire head 7.

[0067] The inside busbar 1 has second lead 10 corresponding with the second wire head 8 and used for welding with corresponding second wire head 8.

[0068] The fixed seat 3 has left positioning part 11 and right positioning part 12, when the fixed seat 3 positioning assembly is on the stator assembly, left positioning groove 13 is formed between the left positioning part 11 and the stator assembly and right positioning groove 14 is formed between the right positioning part 12 and the stator assembly, and the outside busbar 2 is used for clamping installation in the left positioning groove 13 and the right positioning groove 14 to make the first lead 9 contact with corresponding first wire head 7.

[0069] The upper chuck 5 and the lower chuck 6 are stacked and coaxially connected on the lifting seat 4.

[0070] The upper clamp disc 5 is provided with a plurality of first upper clamp holes 15 and a plurality of second upper clamp holes 16, and the lower clamp disc 6 is provided with a plurality of first lower clamp holes 17 and a plurality of second lower clamp holes 18, the first upper clamp holes 15 are aligned with the corresponding first lower clamp holes 17, and the second upper clamp holes 16 are aligned with the corresponding second lower clamp holes 18;

[0071] The material supporting mechanism is connected to the lifting seat 4 and is used to act to support the inner bus bar 1 when the second lead 10 on the inner bus bar 1 is sequentially inserted into the corresponding second lower clamp hole 18 and the corresponding second upper clamp hole 16 from bottom to top;

[0072] The lifting seat 4 is slidingly connected to the fixed seat 3 in the up-down direction and has a raised position of sliding to the top and a lowered position of sliding to the bottom, and the lifting seat 4 is used to sequentially insert the second lead 8 into the corresponding second lower clamp hole 18 and the corresponding second upper clamp hole 16 from bottom to top and to insert the first lead 7 and the first lead 9 into the corresponding first lower clamp hole 17 and the corresponding first upper clamp hole 15, respectively, when sliding to the lowered position;

[0073] The locking mechanism is connected to the upper clamp disc 5 and the lower clamp disc 6, respectively, and is used to drive the upper clamp disc 5 and the lower clamp disc 6 to rotate reversely to the clamping position and then keep the position of the upper clamp disc 5 and the lower clamp disc 6, so as to clamp the corresponding first lead 7 and the corresponding first lead 9 through the first upper clamp hole 15 and the first lower clamp hole 17, and to clamp the corresponding second lead 8 and the corresponding second lead 10 through the second upper clamp hole 16 and the second lower clamp hole 18.

[0074] Specifically, first, the fixed seat 3 is positioned and assembled on the stator assembly, and the lifting seat 4 is slid upward to the raised position. The outer busbar 2 is clamped and installed in the left positioning slot 13 and the right positioning slot 14, and after the outer busbar 2 is installed in place, the first lead 9 is in contact with the corresponding first wire head 7. The second lead 10 on the inner busbar 1 is sequentially inserted into the corresponding second lower clamping hole 18 and the corresponding second upper clamping hole 16 from bottom to top, and after being inserted into place, the inner busbar 1 is held by the material supporting mechanism, thereby completing the installation of the inner busbar 1. Then, the lifting seat 4 is slid downward to the lowered position, at which time the second wire head 8 extends into the corresponding second lower clamping hole 18 and the corresponding second upper clamping hole 16 and is in contact with the second lead 10 on the inner busbar 1, and the first wire head 7 and the first lead 9 extend into the corresponding first lower clamping hole 17 and the corresponding first upper clamping hole 15, respectively. Then, the locking action mechanism drives the upper clamping disc 5 and the lower clamping disc 6 to rotate in opposite directions to the clamping position, and then maintains the position of the upper clamping disc 5 and the lower clamping disc 6, at which time the first upper clamping hole 15 and the first lower clamping hole 17 can clamp the corresponding first wire head 7 and the corresponding first lead 9 together, and the second upper clamping hole 16 and the second lower clamping hole 18 can clamp the corresponding second wire head 8 and the corresponding second lead 10 together, and then they are sent into the welding equipment for welding processing to weld the first wire head 7 and the first lead 9 together and weld the second wire head 8 and the second lead 10 together, realizing the simultaneous clamping of the inner busbar 1 and the outer busbar 2 on the stator assembly, realizing the simultaneous welding of the inner busbar 1 and the outer busbar 2 in one clamping, thereby saving the welding processing time and improving the welding processing efficiency.

[0075] In the present embodiment, the number of the first wire head 7, the first lead 9, the first upper clamping hole 15 and the first lower clamping hole 17 are equal and one-to-one corresponding, and the number of the second wire head 8, the second lead 10, the second upper clamping hole 16 and the second lower clamping hole 18 are equal and one-to-one corresponding. In addition, the first upper clamping hole 15 also communicates with the corresponding second upper clamping hole 16, and the first lower clamping hole 17 also communicates with the corresponding second lower clamping hole 18. The specific shape of the first upper clamping hole 15, the second upper clamping hole 16, the first lower clamping hole 17 and the second lower clamping hole 18 is well known to those skilled in the art, and will not be described in detail in the present embodiment.

[0076] As shown in Figures 2-7 The locking action mechanism includes a first handle 19, a first locking block 20, a first locking pin 21, a second handle 22, a second locking block 23 and a second locking pin 24, for example but not limited to the following structure.

[0077] The first handle 19 is connected with the upper chuck 5;

[0078] The first locking block 20 is connected on the lifting seat 4, and the first locking block 20 is provided with a first locking hole 25;

[0079] The first locking pin 21 is connected on the first handle 19, and the pin head in the first locking pin 21 is used to extend into the first locking hole 25 after the first handle 19 drives the upper chuck 5 to rotate to the clamping position, so as to lock and keep the position of the upper chuck 5;

[0080] The second handle 22 is connected with the lower chuck 6;

[0081] The second locking block 23 is connected on the lifting seat 4, and the second locking block 23 is provided with a second locking hole 26 below;

[0082] The second locking pin 24 is connected on the second handle 22, and the pin head in the second locking pin 24 is used to extend into the second locking hole 26 after the second handle 22 drives the lower chuck 6 to rotate to the clamping position, so as to lock and keep the position of the lower chuck 6. Specifically, the first handle 19 and the second handle 22 drive the upper chuck 5 and the lower chuck 6 to rotate reversely, when the upper chuck 5 and the lower chuck 6 are both rotated to the clamping position, the pin head in the first locking pin 21 extends into the first locking hole 25 to lock and keep the position of the upper chuck 5, and the pin head in the second locking pin 24 extends into the second locking hole 26 to lock and keep the position of the lower chuck 6, at this time, the first upper chuck hole 15 and the first lower chuck hole 17 can clamp the corresponding first wire head 7 and the corresponding first lead wire 9 through misalignment, and the second upper chuck hole 16 and the second lower chuck hole 18 can clamp the corresponding second wire head 8 and the corresponding second lead wire 10 through misalignment. In this embodiment, the first locking pin 21 can be a first index pin, and the second locking pin 24 can be a second index pin, when the upper chuck 5 is rotated to the clamping position, the pin head of the first index pin is aligned with the first locking hole 25 and is popped out to extend into the first locking hole 25 under the driving of the spring, when the lower chuck 6 is rotated to the clamping position, the pin head of the second index pin is aligned with the second locking hole 26 and is popped out to extend into the second locking hole 26 under the driving of the spring.

[0083] As shown in Figures 5-7 The jig for double bus welding can further include at least two first bolts 27 and at least two second bolts 28;

[0084] The lifting seat 4 is provided with a first arc-shaped groove 29 and a second arc-shaped groove 30;

[0085] The first bolt 27 is screwed on the first locking block 20 after passing through the first arc-shaped slot 29, thereby locking the first locking block 20 on the lifting seat 4.

[0086] The second bolt 28 is screwed on the second locking block 23 after passing through the second arc-shaped slot 30, thereby locking the second locking block 23 on the lifting seat 4. The advantage of this design is that the position of the first locking block 20 can be adjusted by unscrewing the first bolt 27, and the position of the second locking block 23 can be adjusted by unscrewing the second bolt 28. Specifically, the rotation axis of the upper chuck 5, the rotation axis of the lower chuck 6, the center of the first arc-shaped slot 29, and the center of the second arc-shaped slot 30 all coincide with the central axis of the stator assembly. Specifically, the lifting seat 4 is provided with an arc-shaped sliding groove, and the upper chuck 5 and the lower chuck 6 are coaxially connected in the arc-shaped sliding groove.

[0087] As shown in Figures 2-7 The material supporting mechanism, for example but not limited to, includes a supporting plate 31 having a material supporting portion 32, and the supporting plate 31 is slidingly connected to the lifting seat 4 and is used to slide to extend the material supporting portion 32 below the inner busbar 1 to support the inner busbar 1. Specifically, when the inner busbar 1 is installed in place, the supporting plate 31 is slid to extend the material supporting portion 32 below the inner busbar 1 to support the inner busbar 1, thereby preventing the inner busbar 1 from falling off the lifting seat 4. After welding is completed, the supporting plate 31 is slid to withdraw the material supporting portion 32 from below the inner busbar 1 to release the support of the inner busbar 1, and then the fixing seat 3 connected to the lifting seat 4 is removed from the stator assembly. In this embodiment, the supporting plate 31 is slidingly connected to the lifting seat 4 by a plurality of stepped screws 33; wherein the lifting seat 4 is provided with a sliding fitting groove 34 corresponding to the stepped screws 33, the stepped screws 33 are connected to the supporting plate 31 and are slidingly fitted in the corresponding sliding fitting groove 34, thereby slidingly connecting the supporting plate 31 to the lifting seat 4. Further specifically, the supporting plate 31 is connected with a handle 35, the lifting seat 4 is provided with a through groove 36, the handle 35 passes through the through groove 36 and is connected with the supporting plate 31, and the supporting plate 31 can be slid by the handle 35.

[0088] As shown in Figures 2-7As shown, the lifting seat 4 can be slidingly connected to the fixed seat 3 through a guide sleeve 37 and a guide column 38, at least one guide column 38 is connected to the lifting seat 4, and at least one guide sleeve 37 is connected to the fixed seat 3, the guide column 38 is slidingly connected in the corresponding guide sleeve 37, so that the lifting seat 4 is slidingly connected to the fixed seat 3 in the up-down direction;

[0089] At least two latches 39 are connected to the fixed seat 3, and the stator assembly is provided with a corresponding insertion hole for the latches 39, the latches 39 are used to be inserted into the insertion hole when the fixed seat 3 is assembled on the stator assembly to position the fixed seat 3.

[0090] At least two abutting pins 40 are also connected to the fixed seat 3, which are used to abut against the end face of the stator assembly when the fixed seat 3 is assembled on the stator assembly; in particular, the abutting pins 40 are used to abut against the end face of the stator core in the stator assembly, and a fixed handle is connected to the fixed seat 3, thereby facilitating the taking and placing of the fixed seat 3.

[0091] As shown in Figures 2-7 , the jig for double busbar welding can also include an anti-falling rod 41, an anti-falling pin 42, and a support rod 43.

[0092] The upper end of the anti-falling rod 41 is connected to the lifting seat 4.

[0093] The anti-falling pin 42 is connected to the fixed seat 3, and the pin head in the anti-falling pin 42 is used to extend below the anti-falling rod 41 and support the anti-falling rod 41 when the lifting seat 4 is slid upward to the raised position, thereby keeping the lifting seat 4 in the raised position; in this embodiment, the anti-falling pin 42 can be a third indexing pin, the pin head of the third indexing pin abuts against the side wall of the anti-falling rod 41 under the pushing force of the spring when the lifting seat 4 is lowered, and the pin head of the third indexing pin automatically extends below the anti-falling rod 41 and supports the anti-falling rod 41 under the pushing force of the spring when the lifting seat 4 is slid upward to the raised position, and the pin head of the third indexing pin is retracted by pulling the third indexing pin when the lifting seat 4 needs to be lowered.

[0094] The upper end of the support rod 43 is connected to the lifting seat 4, and the lower end of the support rod 43 is used to abut against the fixed seat 3 when the lifting seat 4 is slid downward to the lowered position, so as to support the lifting seat 4.

[0095] As shown in Figure 1 , 2 , 3, 4, 8, 9, the outer busbar 2 also has a terminal 44, and the fixed seat 3 also has a positioning mechanism for supporting and positioning the terminal 44.

[0096] The positioning mechanism comprises a base assembly, a positioning pin 45, a floating plate 46, a supporting plate pin 47 and a limiting mechanism;

[0097] The base assembly is connected to the fixed seat 3;

[0098] The positioning pin 45 is slidably fitted in the base assembly in the up-down direction;

[0099] The floating plate 46 is connected to the lower end of the positioning pin 45, and the floating plate 46 is used to drive the positioning pin 45 to rise up when it is raised up to position, so that the upper end of the positioning pin 45 is inserted into the positioning hole in the terminal 44 and supports the terminal 44;

[0100] The supporting plate pin 47 is connected to the base assembly, and the pin head of the supporting plate pin 47 is used to extend below the floating plate 46 and support the floating plate 46 when the floating plate 46 is raised up to position;

[0101] The limiting mechanism is connected to the base assembly and is used to abut against the floating plate 46 when the floating plate 46 is lowered to position to support the floating plate 46. Specifically, after the outer bus bar 2 is clamped and fitted in the left positioning groove 13 and the right positioning groove 14, the floating plate 46 is manually lifted up to drive the positioning pin 45 to rise up, so that the upper end of the positioning pin 45 is inserted into the positioning hole in the terminal 44 and supports the terminal 44. When the floating plate 46 is raised up to position, the pin head of the supporting plate pin 47 extends below the floating plate 46 and supports the floating plate 46, thereby keeping the floating plate 46 raised. After the welding is completed, the supporting plate pin 47 is pulled to retract the pin head of the supporting plate pin 47 to release the support of the floating plate 46, and then the floating plate 46 and the positioning pin 45 can be lowered to position. Specifically, the supporting plate pin 47 can be a fourth index pin. When the floating plate 46 is lowered, the pin head of the fourth index pin abuts against the side wall of the floating plate 46 under the pushing force of the spring. When the floating plate 46 is slid up to position, the pin head of the fourth index pin automatically extends below the floating plate 46 and supports the floating plate 46 under the pushing force of the spring. The specific structures of the first index pin, the second index pin, the third index pin and the fourth index pin are well known to those skilled in the art, and will not be described in detail in this embodiment.

[0102] As shown in Figure 1 , 2 , 3, 4, 8, 9, the base assembly can comprise a connecting seat 48, a rotating seat 49 and a locking bolt 50;

[0103] The connecting seat 48 is connected to the fixing seat 3, and a third arc-shaped slot 51 is arranged in the connecting seat 48;

[0104] The rotating seat 49 is rotatably connected to the connecting seat 48, and the center of the third arc-shaped slot 51 coincides with the rotating shaft of the rotating seat 49;

[0105] The locking bolt 50 is threadedly connected to the rotating seat 49 after penetrating through the third arc-shaped slot 51, and the locking bolt 50 is used for locking and fixing the rotating seat 49 after the rotating seat 49 is rotated to a proper angle;

[0106] The positioning pin 45 is slidably arranged on the rotating seat 49 in the up-down direction, and the supporting plate pin 47 and the limiting mechanism are both connected to the rotating seat 49.

[0107] As shown in Figure 8 、 9 The limiting mechanism comprises a limiting screw 52 and a limiting nut 53.

[0108] The floating plate 46 is provided with a through hole, the upper end of the limiting screw 52 is connected to the rotating seat 49, and the lower end of the limiting screw 52 penetrates through the through hole;

[0109] The limiting nut 53 is connected to the lower end of the limiting screw 52 and is located below the floating plate 46, and the limiting nut 53 is used for abutting against the bottom of the floating plate 46 when the floating plate 46 is lowered to a position, thereby supporting the floating plate 46;

[0110] The floating plate 46 and the rotating seat 49 are further provided with a reset spring 54 which is sleeved outside the positioning pin 45 and is used for driving the floating plate 46 to move downwardly; in the embodiment, the rotating seat 49 is provided with a copper sleeve, and the positioning pin 45 is slidably arranged in the copper sleeve.

[0111] In the embodiment, the outer busbar 2 is provided with three terminals 44, and the positioning pin 45 is provided with two.

[0112] The two positioning pins 45 are both slidably arranged on the rotating seat 49 in the up-down direction;

[0113] The floating plate 46 is connected to the lower ends of the two positioning pins 45, and the floating plate 46 is used for driving the two positioning pins 45 to be raised upwardly when the floating plate 46 is raised to a position, thereby making one of the positioning pins 45 inserted into the positioning hole in the leftmost terminal 44 and supporting the leftmost terminal 44, and making the other positioning pin 45 inserted into the positioning hole in the rightmost terminal 44 and supporting the rightmost terminal 44;

[0114] The rotating seat 49 is further provided with a supporting step 55 for supporting the middle terminal 44.

[0115] In summary, first, the fixed seat 3 is positioned and assembled on the stator assembly, and the lifting seat 4 is slid upward to the raised position. The outer busbar 2 is clamped and installed in the left positioning groove 13 and the right positioning groove 14, and after the outer busbar 2 is installed in place, the first lead 9 is in contact with the corresponding first wire head 7. The second lead 10 on the inner busbar 1 is sequentially inserted into the corresponding second lower clamping hole 18 and the corresponding second upper clamping hole 16 from bottom to top, and after being inserted in place, the inner busbar 1 is supported by the material supporting mechanism, thereby completing the installation of the inner busbar 1. Then, the lifting seat 4 is slid downward to the lowered position, at which time the second wire head 8 extends into the corresponding second lower clamping hole 18 and the corresponding second upper clamping hole 16 and is in contact with the second lead 10 on the inner busbar 1, and the first wire head 7 and the first lead 9 extend into the corresponding first lower clamping hole 17 and the corresponding first upper clamping hole 15, respectively. Then, the upper clamping disc 5 and the lower clamping disc 6 are driven by the locking action mechanism to rotate reversely to the clamping position, and then the positions of the upper clamping disc 5 and the lower clamping disc 6 are maintained, at which time the first upper clamping hole 15 and the first lower clamping hole 17 can clamp the corresponding first wire head 7 and the corresponding first lead 9 together, and the second upper clamping hole 16 and the second lower clamping hole 18 can clamp the corresponding second wire head 8 and the corresponding second lead 10 together, and then they are sent into the welding equipment for welding processing to weld the first wire head 7 and the first lead 9 together and weld the second wire head 8 and the second lead 10 together, realizing that the inner busbar 1 and the outer busbar 2 are clamped on the stator assembly at the same time, realizing that the inner busbar 1 and the outer busbar 2 can be welded at the same time by one clamping, thereby saving the welding processing time and improving the welding processing efficiency.

[0116] The above-described specific embodiments further illustrate the technical problems, technical solutions and beneficial effects solved by the utility model in detail. It should be understood that the above-described specific embodiments are merely examples of the utility model and are not intended to limit the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. A jig for dual bus welding, characterized by, It is used for clamping the inner busbar (1) and the outer busbar (2) on the stator assembly, which comprises a fixed seat (3), a lifting seat (4), an upper chuck (5), a lower chuck (6), a material supporting mechanism and a locking action mechanism; The stator assembly has a plurality of first wire heads (7) and a plurality of second wire heads (8); The outer busbar (2) has a plurality of first lead wires (9) corresponding to the first wire heads (7) and used for welding with the corresponding first wire heads (7); The inner busbar (1) has a plurality of second lead wires (10) corresponding to the second wire heads (8) and used for welding with the corresponding second wire heads (8); The fixed seat (3) has a left positioning part (11) and a right positioning part (12), when the fixed seat (3) is positioned and assembled on the stator assembly, a left positioning groove (13) is formed between the left positioning part (11) and the stator assembly, and a right positioning groove (14) is formed between the right positioning part (12) and the stator assembly, and the outer busbar (2) is used for being clamped and installed in the left positioning groove (13) and the right positioning groove (14) to make the first lead wire (9) contact with the corresponding first wire head (7); The upper chuck (5) and the lower chuck (6) are stacked and coaxially connected on the lifting seat (4); The upper chuck (5) is provided with a plurality of first upper chuck holes (15) and a plurality of second upper chuck holes (16), the lower chuck (6) is provided with a plurality of first lower chuck holes (17) and a plurality of second lower chuck holes (18), the first upper chuck hole (15) is aligned with the corresponding first lower chuck hole (17), and the second upper chuck hole (16) is aligned with the corresponding second lower chuck hole (18); The material supporting mechanism is connected to the lifting seat (4) and is used for supporting the inner busbar (1) when the second lead wire (10) on the inner busbar (1) is sequentially inserted into the corresponding second lower chuck hole (18) and the corresponding second upper chuck hole (16) from bottom to top; The lifting seat (4) is slidingly connected to the fixed seat (3) in the upward and downward directions and has a lifting position of sliding upward to a position and a lowering position of sliding downward to a position, and the lifting seat (4) is used for sequentially inserting the second wire head (8) into the corresponding second lower chuck hole (18) and the corresponding second upper chuck hole (16) from bottom to top and inserting the first wire head (7) and the first lead wire (9) into the corresponding first lower chuck hole (17) and the corresponding first upper chuck hole (15) respectively when sliding to the lowering position. The locking action mechanism is connected with the upper clamp plate (5) and the lower clamp plate (6) respectively and is used to drive the upper clamp plate (5) and the lower clamp plate (6) to rotate reversely to the clamping position and then keep the position of the upper clamp plate (5) and the lower clamp plate (6), so as to clamp the corresponding first wire end (7) and the corresponding first lead wire (9) through the first upper clamp hole (15) and the first lower clamp hole (17), and clamp the corresponding second wire end (8) and the corresponding second lead wire (10) through the second upper clamp hole (16) and the second lower clamp hole (18).

2. The fixture for dual bus bar welding of claim 1, wherein, The locking action mechanism comprises a first handle (19), a first locking block (20), a first locking pin (21), a second handle (22), a second locking block (23) and a second locking pin (24); The first handle (19) is connected with the upper clamp plate (5); The first locking block (20) is connected on the lifting seat (4), and a first locking hole (25) is arranged on the first locking block (20); The first locking pin (21) is connected on the first handle (19), and the pin head in the first locking pin (21) is used to extend into the first locking hole (25) after the first handle (19) drives the upper clamp plate (5) to rotate to the clamping position, so as to lock and keep the position of the upper clamp plate (5); The second handle (22) is connected with the lower clamp plate (6); The second locking block (23) is connected on the lifting seat (4), and a second locking hole (26) is arranged below the second locking block (23); The second locking pin (24) is connected on the second handle (22), and the pin head in the second locking pin (24) is used to extend into the second locking hole (26) after the second handle (22) drives the lower clamp plate (6) to rotate to the clamping position, so as to lock and keep the position of the lower clamp plate (6).

3. The fixture for dual bus bar welding of claim 2, wherein, At least two first bolts (27) and at least two second bolts (28) are further included; The lifting seat (4) is provided with a first arc-shaped groove (29) and a second arc-shaped groove (30); The first bolt (27) is threadedly connected on the first locking block (20) after penetrating through the first arc-shaped groove (29), so as to lock and connect the first locking block (20) on the lifting seat (4); The second bolt (28) is threadedly connected on the second locking block (23) after penetrating through the second arc-shaped groove (30), so as to lock and connect the second locking block (23) on the lifting seat (4).

4. The apparatus for dual bus bar welding of claim 1, wherein, The material supporting mechanism comprises a supporting plate (31) provided with a material supporting part (32), and the supporting plate (31) is slidingly connected on the lifting seat (4) and is used to slide to the position that the material supporting part (32) extends below the inner busbar (1) to support the inner busbar (1).

5. The apparatus for dual bus bar welding of claim 1, wherein, The lifting seat (4) is slidably connected to the fixed seat (3) through a guide sleeve (37) and a guide column (38), at least one guide column (38) is connected to the lifting seat (4), at least one guide sleeve (37) is connected to the fixed seat (3), and the guide column (38) is slidably connected in the corresponding guide sleeve (37); At least two latches (39) are connected to the fixed seat (3), and the stator assembly is provided with a corresponding insertion hole for the latches (39), and the latches (39) are used to be inserted into the insertion hole to position the fixed seat (3) when the fixed seat (3) is assembled on the stator assembly; At least two abutting pins (40) are further connected to the fixed seat (3), and the abutting pins (40) are used to abut against the end face of the stator assembly when the fixed seat (3) is assembled on the stator assembly.

6. The apparatus for dual bus bar welding of claim 1, wherein, Further comprising a falling prevention rod (41), a falling prevention pin (42) and a supporting rod (43); The upper end of the falling prevention rod (41) is connected to the lifting seat (4); The falling prevention pin (42) is connected to the fixed seat (3), and the pin head in the falling prevention pin (42) is used to extend below the falling prevention rod (41) and support the falling prevention rod (41) when the lifting seat (4) slides upward to the raised position; The upper end of the supporting rod (43) is connected to the lifting seat (4), and the lower end of the supporting rod (43) is used to abut against the fixed seat (3) to support the lifting seat (4) when the lifting seat (4) slides downward to the lowered position.

7. The fixture for dual bus bar welding of claim 1, wherein, The outer busbar (2) further has a terminal (44), and the fixed seat (3) further has a positioning mechanism for supporting and positioning the terminal (44); The positioning mechanism comprises a base assembly, a positioning pin (45), a floating plate (46), a supporting plate pin (47) and a limiting mechanism; The base assembly is connected to the fixed seat (3); The positioning pin (45) is slidably arranged in the base assembly in the up-down direction; The floating plate (46) is connected to the lower end of the positioning pin (45), and the floating plate (46) is used to drive the positioning pin (45) to rise upward when it rises upward to the position, so that the upper end of the positioning pin (45) is inserted into the positioning hole in the terminal (44) and supports the terminal (44); The supporting plate pin (47) is connected to the base assembly, and the pin head of the supporting plate pin (47) is used to extend below the floating plate (46) and support the floating plate (46) when the floating plate (46) rises upward to the position; The limiting mechanism is connected to the base assembly and is used to abut against the floating plate (46) to support the floating plate (46) when the floating plate (46) descends to the position.

8. The fixture for dual bus bar welding of claim 7, wherein, The base assembly comprises a connecting seat (48), a rotating seat (49) and a locking bolt (50); The connecting seat (48) is connected to the fixed seat (3), and a third arc-shaped groove (51) is arranged in the connecting seat (48); The rotating seat (49) is rotatably connected to the connecting seat (48), and the center of the third arc-shaped slot (51) coincides with the rotating shaft of the rotating seat (49); The locking bolt (50) is threadedly connected to the rotating seat (49) after penetrating through the third arc-shaped slot (51), and is used for locking and fixing the rotating seat (49) after the rotating seat (49) is rotated to a proper angle; The positioning pin (45) is slidably arranged on the rotating seat (49) in the up-down direction, and the supporting plate pin (47) and the limiting mechanism are both connected to the rotating seat (49).

9. The fixture for dual bus bar welding of claim 8, wherein, The limiting mechanism comprises a limiting screw (52) and a limiting nut (53); The floating plate (46) is provided with a through hole, the upper end of the limiting screw (52) is connected to the rotating seat (49), and the lower end of the limiting screw (52) penetrates through the through hole; The limiting nut (53) is connected to the lower end of the limiting screw (52) and is located below the floating plate (46), and is used for abutting against the bottom of the floating plate (46) when the floating plate (46) is lowered to a position, thereby supporting the floating plate (46); The floating plate (46) and the rotating seat (49) are further provided with a reset spring (54) sleeved outside the positioning pin (45) and used for driving the floating plate (46) to move downward.

10. The fixture for dual bus bar welding of claim 8, wherein, The outer busbar (2) is provided with three terminals (44), and the positioning pin (45) is provided with two; Both of the positioning pins (45) are slidably arranged on the rotating seat (49) in the up-down direction; The floating plate (46) is connected to the lower ends of the two positioning pins (45), and is used for driving the two positioning pins (45) to be lifted upward when the floating plate (46) is lifted upward to a position, thereby making one of the positioning pins (45) inserted into the positioning hole in the leftmost terminal (44) and supporting the leftmost terminal (44), and making the other positioning pin (45) inserted into the positioning hole in the rightmost terminal (44) and supporting the rightmost terminal (44); The rotating seat (49) is further provided with a supporting step (55) used for supporting the middle terminal (44).

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