A multi-end ring rotor and welding equipment thereof

Abstract

The present invention relates to the technical field of motor production equipment, and discloses a multi-end ring rotor and welding equipment thereof, comprising a rotor core, two end rings and a plurality of copper bars, each end ring being composed of a plurality of copper rings arranged at equal distances. A multi-end ring rotor welding equipment comprises a turntable, on which a bar positioning assembly, a bar clamping assembly and an end ring clamping assembly are connected; the bar positioning assembly is used to place a plurality of copper bars distributed in a ring shape, the bar clamping assembly is used to cooperate with the bar positioning assembly to clamp a plurality of copper bars, and the bar clamping assembly and the bar positioning assembly are clamped together to form two clamping points on each copper bar so that each copper bar remains parallel. The present invention stacks two bar positioning disks and two bar clamping disks, so that a plurality of copper bars pass through in a specific arrangement, and when the two bar clamping disks rotate, the two bar clamping disks can cooperate with the two bar positioning disks to clamp a plurality of copper bars that pass through, and form two clamping points on each copper bar.

Description

Technical Field

[0001] The invention relates to the technical field of motor production equipment, and in particular to a multi-end ring rotor and welding equipment thereof. Background Art

[0002] The motor rotor is the core component of the motor. The motor rotor is mainly composed of a rotor core, end rings and guide bars. During the manufacturing process of the motor rotor, the end rings at both ends of the rotor core need to be welded to ensure that the end rings at both ends can be fixed on multiple guide bars.

[0003] In the prior art, for example, the patent document with publication number CN109639067A proposes a rotor end ring welding fixing device, including a base, a bearing is arranged on the base, and a rotating disk is arranged on the bearing; a welding fixture base is fixed on the rotating disk; a threaded through hole is arranged in the middle of the welding fixture base; a positioning sleeve is cylindrical, and a thread is arranged on the outer side corresponding to the threaded through hole arranged in the middle of the welding fixture base; the positioning sleeve of the inserted welding fixture is higher than the height of the welding fixture base; the height of the positioning sleeve of the embedded welding fixture is less than the height of the welding fixture base; the invention has universality, can reduce the frequent replacement of welding fixtures, improve production efficiency and reduce production costs.

[0004] However, the above-mentioned existing technical solutions still have limitations in actual use. In the prior art, in order to obtain better heat dissipation performance, the components that make up the rotor are generally configured to be composed of multiple sub-components, thereby increasing the gaps between the components to improve the heat dissipation performance. However, the above-mentioned technical solutions are more suitable for the traditional single thick end ring and are difficult to be applied to the positioning and installation of multiple thin end rings. The above-mentioned existing technology is also difficult to assist in the installation of the rotor, guide bars and end rings, and it is still necessary to manually install the rotor, guide bars and end rings as semi-finished products in advance, which is inconvenient to use. Summary of the invention

[0005] The object of the present invention is to provide a multi-end ring rotor and welding equipment thereof to solve the problems in the prior art that it is difficult to apply multiple thin end rings to the positioning and installation, and it is difficult to assist in the installation of the rotor, guide bars and end rings.

[0006] In order to solve the above technical problems, the present invention specifically provides the following technical solutions:

[0007] A multi-end ring rotor, comprising:

[0008] The rotor core is composed of a plurality of equally spaced rotor plates, and the plurality of rotor plates are all located on the same central axis;

[0009] Two end rings, which are respectively located at two ends of the rotor core, and each of the end rings is composed of a plurality of copper rings arranged at equal distances;

[0010] A plurality of copper conducting bars are used to pass through the plurality of rotor plates of the rotor core and the plurality of copper rings of the two end rings.

[0011] As a preferred solution of the present invention, a through hole is provided at the center of each rotor plate, and a conductor bar through hole is provided on each rotor plate for the copper conductor bar to pass through, and a plurality of the conductor bar through holes are evenly distributed around the center of the rotor plate.

[0012] As a preferred solution of the present invention, each of the copper rings is provided with a conductor bar welding hole for the copper conductor bar to pass through, and a plurality of the conductor bar welding holes are evenly distributed around the center of the copper ring, and the four inner walls of each of the conductor bar welding holes are inclined surfaces so that the size of the port on one side is larger than the size of the port on the other side.

[0013] In order to solve the above technical problems, the present application further provides a multi-end ring rotor welding device, comprising a turntable, to which a guide bar positioning assembly, a guide bar clamping assembly and an end ring clamping assembly are connected;

[0014] The conductor bar positioning assembly is used to place a plurality of copper conductor bars distributed in a ring shape;

[0015] The conductor bar clamping assembly is used to cooperate with the conductor bar positioning assembly to clamp a plurality of copper conductor bars, and the conductor bar clamping assembly and the conductor bar positioning assembly can clamp together to form two clamping points on each copper conductor bar so that each copper conductor bar remains parallel;

[0016] The end ring clamping assembly is used to clamp the copper ring and keep it in a horizontal state.

[0017] As a preferred solution of the present invention, the guide bar positioning assembly includes a first sliding frame fixedly connected to the turntable, a first slider being longitudinally slidably connected in the first sliding frame, a first screw rod being rotatably connected to the first sliding frame for passing through the first slider and being threadedly connected to the first slider, a first rotary handle being provided on the top of the first screw rod, connecting blocks being connected to the first sliding frame and the first slider, guide bar positioning disks being provided on the two connecting blocks for allowing multiple copper guide bars to pass through, and central axes of the two guide bar positioning disks always coincide.

[0018] As a preferred solution of the present invention, the connecting block is fixedly connected to one side of the first sliding frame or the first sliding block, and a semicircular frame is provided on the other side of the connecting block, and a limiting ring is connected to the bottom end of the semicircular frame, and the limiting ring and the semicircular frame are on the same central axis;

[0019] The guide bar positioning disk is fixedly connected to the inner side of the semicircular frame, the guide bar positioning disk is parallel to the limiting ring, and there is a gap between the bottom end of the guide bar positioning disk and the limiting ring.

[0020] As a preferred solution of the present invention, a plurality of guide bar guide grooves for the copper guide bar to pass through are provided on the guide bar positioning disk, and the plurality of guide bar guide grooves are evenly distributed around the center of the guide bar positioning disk, and the inner diameter of one end of the guide bar guide groove is consistent with the width of the copper guide bar and smaller than the inner diameter of the other end of the guide bar guide groove.

[0021] As a preferred solution of the present invention, the guide bar clamping assembly includes a second sliding frame fixedly connected to the turntable, a second sliding block is slidably connected to the second sliding frame, an electric push rod for driving the second sliding block to slide is installed on the second sliding frame, the second sliding block is provided with a vertical rod, two elastic ropes are connected to the vertical rod, and the ends of the two elastic ropes are connected to the guide bar clamping disk.

[0022] As a preferred solution of the present invention, the guide bar clamping disk is rotatably connected to the inner side of one of the semicircular frames, and the guide bar clamping disk is located between the corresponding guide bar positioning assembly and the limiting ring, a limiting block for connecting the elastic rope is provided on the outer side of the guide bar clamping disk, and a plurality of clamping notches are provided on the guide bar clamping disk, and the plurality of clamping notches are distributed around the center of the guide bar clamping disk;

[0023] When the limiting block contacts one end of the semicircular frame, the plurality of clamping notches overlap with the corresponding plurality of guide bar guide grooves.

[0024] As a preferred scheme of the present invention, the end ring clamping assembly includes a third sliding frame fixedly connected to the turntable, a third sliding block is longitudinally slidably connected to the third sliding frame, a second screw rod is rotatably connected to the third sliding frame for passing through the third sliding block and threadedly connected to the third sliding block, a second rotary handle is provided on the top of the second screw rod, two clamping arms symmetrically distributed about the central axis of the third sliding block are rotatably connected to the third sliding block, a movable rod for passing through the other clamping arm is rotatably connected to one of the clamping arms, a spring located between the two clamping arms is sleeved on the movable rod, an arc-shaped positioning groove for supporting the copper ring is provided on the inner sides of the two clamping arms, and a scale line for indicating the height of the third sliding block is provided on the third sliding frame.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The present invention changes the single end rings at both ends of the traditional rotor into multiple sub-copper rings. There are gaps between the multiple sub-copper rings, which is more conducive to heat dissipation than the traditional integral end rings. The sub-copper rings are thinner than the traditional end rings, so the connection strength requirements after welding are lower, and it is more suitable for low-power welding equipment;

[0027] 2. The present invention stacks the two guide bar positioning disks of the guide bar positioning assembly and the two guide bar clamping disks of the guide bar clamping assembly, so that multiple copper guide bars pass through in a specific arrangement. When the two guide bar clamping disks rotate, the two guide bar clamping disks can cooperate with the two guide bar positioning disks to clamp the multiple copper guide bars that pass through, and form two clamping points on each copper guide bar to ensure that the multiple copper guide bars always remain parallel, which is convenient for the subsequent installation of multiple rotor plates and multiple copper rings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0029] Figure 1 It is a front view of the multi-end ring rotor of the present invention;

[0030] Figure 2 is a schematic diagram of a rotor sheet of the present invention;

[0031] Figure 3 is a schematic diagram of a copper ring of the present invention;

[0032] Figure 4 For the present invention Figure 3 The enlarged view of point A in the middle;

[0033] Figure 5 It is a structural schematic diagram of the multi-end ring rotor welding equipment of the present invention;

[0034] Figure 6 It is a structural schematic diagram of a guide bar positioning assembly and a guide bar clamping assembly of the present invention;

[0035] Figure 7 It is a schematic diagram of the local structure of the connecting block of the present invention;

[0036] Figure 8 It is a schematic diagram of the guide bar positioning disk of the present invention;

[0037] Fig. 9 It is a schematic diagram of the guide bar clamping disk of the present invention;

[0038] Fig.10 It is a structural schematic diagram of the end ring clamping assembly of the present invention;

[0039] Fig.11 It is a connection schematic diagram of the movable rod of the present invention.

[0040] Reference numerals:

[0041] 1. Rotor core; 2. End ring; 3. Copper guide bar; 4. Rotating plate; 5. Guide bar positioning assembly; 6. Guide bar clamping assembly; 7. End ring clamping assembly;

[0042] 11, rotor sheet; 111, guide bar through hole; 21, copper ring; 211, guide bar welding hole;

[0043] 51. first slide frame; 52. first slide block; 53. first screw rod; 54. connecting block; 55. guide bar positioning plate; 56. first rotary handle;

[0044] 541, semicircular frame; 542, limiting ring; 551, guide bar guide groove;

[0045] 61. second sliding frame; 62. second sliding block; 63. electric push rod; 64. vertical rod; 65. elastic rope; 66. guide bar clamping plate;

[0046] 661, limit block; 662, clamping notch;

[0047] 71. third sliding frame; 72. third sliding block; 73. second screw rod; 74. second rotary handle; 75. clamping arm; 76. movable rod; 77. spring; 78. arc-shaped positioning groove. DETAILED DESCRIPTION

[0048] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0049] The components of the embodiments of the present invention generally described and shown in the drawings herein may be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0050] Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present invention.

[0051] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0052] Combine the following Figures 1 to 11As shown, an embodiment of the present invention provides a multi-end ring rotor, comprising:

[0053] The rotor core 1 is composed of a plurality of equally spaced rotor plates 11, and the plurality of rotor plates 11 are all located on the same central axis;

[0054] Two end rings 2, which are respectively located at two ends of the rotor core 1, and each end ring 2 is composed of a plurality of copper rings 21 arranged at equal distances;

[0055] A plurality of copper conductive bars 3 are used to pass through a plurality of rotor plates 11 of the rotor core 1 and a plurality of copper rings 21 of the two end rings 2 .

[0056] A through hole is formed at the center of each rotor plate 11 , and a conductor bar through hole 111 for the copper conductor bar 3 to pass through is formed on each rotor plate 11 . A plurality of conductor bar through holes 111 are evenly distributed around the center of the rotor plate 11 .

[0057] Each copper ring 21 is provided with a conductor bar welding hole 211 for the copper conductor bar 3 to pass through. The plurality of conductor bar welding holes 211 are evenly distributed around the center of the copper ring 21. The four inner walls of each conductor bar welding hole 211 are inclined surfaces so that the size of the port on one side is larger than the size of the port on the other side.

[0058] The present invention changes the single end ring 2 at both ends of the traditional rotor core 1 into an end ring 2 composed of multiple copper rings 21. There are gaps between the multiple copper rings 21, which is more conducive to heat dissipation than the traditional integral end ring 2. The copper ring 21 is thinner than the traditional end ring 2, so the connection strength requirements after welding are lower, and it is more suitable for low-power welding equipment.

[0059] It is worth noting that since the rotor core 1 is composed of multiple rotor plates 11, the end ring 2 is composed of multiple copper rings 21, and multiple copper conductors 3 need to be passed through the multiple rotor plates 11 and the copper rings 21, a conductor through hole 111 for the multiple copper conductors 3 to pass through is opened on the rotor plate 11, and a conductor welding hole 211 for the multiple copper conductors 3 to pass through is opened on the copper ring 21. In addition, it is necessary to fix the position of the copper ring 21 on the multiple copper conductors 3, so the installed copper ring 21 needs to be welded and fixed, and the inner wall structure of the conductor welding hole 211 is designed with an inclined surface, so that there is a space for filling the welding material between the conductor welding hole 211 and the passed copper conductor 3, which facilitates the subsequent welding of the copper ring 21.

[0060] In order to solve the above-mentioned technical problem of manufacturing a multi-end ring rotor, the present application further provides a multi-end ring rotor welding device, including a turntable 4, to which a guide bar positioning assembly 5, a guide bar clamping assembly 6 and an end ring clamping assembly 7 are connected;

[0061] A conductor bar positioning assembly 5, which is used to place a plurality of copper conductor bars 3 distributed in a ring shape;

[0062] The conductor bar clamping assembly 6 is used to cooperate with the conductor bar positioning assembly 5 to clamp a plurality of copper conductor bars 3, and the conductor bar clamping assembly 6 and the conductor bar positioning assembly 5 can clamp together to form two clamping points on each copper conductor bar 3 so that each copper conductor bar 3 remains parallel;

[0063] The end ring clamping assembly 7 is used to clamp the copper ring 21 and keep the copper ring 21 in a horizontal state.

[0064] The present invention stacks the two guide bar positioning disks 55 of the guide bar positioning assembly 5 and the two guide bar clamping disks 66 of the guide bar clamping assembly 6, so that multiple copper guide bars 3 pass through in a specific arrangement. When the two guide bar clamping disks 66 rotate, the two guide bar clamping disks 66 can cooperate with the two guide bar positioning disks 55 to clamp the multiple copper guide bars 3 that pass through, and form two clamping points on each copper guide bar 3 to ensure that the multiple copper guide bars 3 always remain parallel, which is convenient for the subsequent installation of multiple rotor plates 11 and multiple copper rings 21.

[0065] The end ring clamping assembly 7 provided in the present invention can clamp the copper ring 21 passing through a plurality of copper conductor bars 3, and can adjust the height of the clamped copper ring 21, so as to facilitate fixing the copper ring 21 at any height for welding.

[0066] Among them, the guide bar positioning assembly 5 includes a first sliding frame 51 fixedly connected to the turntable 4, a first slider 52 is longitudinally slidably connected in the first sliding frame 51, a first screw rod 53 for passing through the first slider 52 and threadedly connected to the first slider 52 is rotatably connected to the first sliding frame 51, a first rotary handle 56 is provided on the top of the first screw rod 53, the first sliding frame 51 and the first slider 52 are both connected to connecting blocks 54, and the two connecting blocks 54 are both provided with guide bar positioning disks 55 for multiple copper guide bars 3 to pass through, and the central axes of the two guide bar positioning disks 55 always coincide.

[0067] The connecting block 54 is fixedly connected to one side of the first sliding frame 51 or the first sliding block 52. A semicircular frame 541 is provided on the other side of the connecting block 54. A limiting ring 542 is connected to the bottom end of the semicircular frame 541. The limiting ring 542 and the semicircular frame 541 are on the same central axis.

[0068] The guide bar positioning disk 55 is fixedly connected to the inner side of the semicircular frame 541 . The guide bar positioning disk 55 is parallel to the limiting ring 542 . There is a gap between the bottom end of the guide bar positioning disk 55 and the limiting ring 542 .

[0069] The guide bar positioning disk 55 is provided with a plurality of guide bar guide grooves 551 for the copper guide bar 3 to pass through. The plurality of guide bar guide grooves 551 are evenly distributed around the center of the guide bar positioning disk 55. The inner diameter of one end of the guide bar guide groove 551 is consistent with the width of the copper guide bar 3 and is smaller than the inner diameter of the other end of the guide bar guide groove 551.

[0070] Specifically, when installing a multi-end ring rotor, it is necessary to first fix multiple copper bars 3 in a circular arrangement, and it is necessary to ensure that all copper bars 3 remain parallel. When using this device, it is necessary to first pass multiple copper bars 3 through the bar guide grooves 551 on the two bar positioning disks 55 in sequence. Since the lower bar positioning disk 55 is installed on the first slide frame 51 through the connecting block 54, the height position of the lower bar positioning disk 55 is at the bottom and the height cannot be adjusted. At this time, the bottom ends of the multiple copper bars 3 passing through the two bar positioning disks 55 will directly contact the upper surface of the rotating disk 4, so that the two ends of the multiple copper bars 3 are flush. Depending on the different specifications of the rotor to be installed, there may be different widths of the end rings at both ends of the terminal. The first knob 56 can be turned to make the first slider 52 rise and fall in the first slide frame 51 under the action of the thread, thereby adjusting the spacing between the two bar positioning disks 55.

[0071] Furthermore, in order to facilitate the copper conductor bars 3 to pass through the conductor bar guide groove 551, the conductor bar guide groove 551 is formed into a trapezoidal structure, and the copper conductor bars 3 can extend from the larger end of the conductor bar guide groove 551 when passing through the conductor bar guide groove 551. When clamping is required to keep all the copper conductor bars 3 parallel, the conductor bar clamping assembly 6 can clamp all the copper conductor bars 3 passing through the conductor bar guide groove 551 from the larger end of the conductor bar guide groove 551 to the smaller end, thereby improving the accuracy of the positions and angles of the multiple copper conductor bars 3.

[0072] It is worth noting that since the copper conductor bar 3 needs to pass through the conductor bar guide grooves 551 on the two conductor bar positioning disks 55 in sequence, and a limiting ring 542 for supporting the conductor bar clamping assembly 6 is provided under each conductor bar positioning disk 55, the inner diameter of the limiting ring 542 needs to be slightly smaller than the diameter of the conductor bar positioning disk 55, so that the copper conductor bar 3 will not be blocked by the limiting ring 542 when passing through the conductor bar guide groove 551 vertically.

[0073] Among them, the guide bar clamping assembly 6 includes a second sliding frame 61 fixedly connected to the turntable 4, and a second slider 62 is slidably connected to the second sliding frame 61. An electric push rod 63 for driving the second slider 62 to slide is installed on the second sliding frame 61. The second slider 62 is provided with a vertical rod 64, and two elastic ropes 65 are connected to the vertical rod 64. The ends of the two elastic ropes 65 are connected to the guide bar clamping disk 66.

[0074] The guide bar clamping plate 66 is rotatably connected to the inner side of the half circular frame 541, and the guide bar clamping plate 66 is located between the corresponding guide bar positioning assembly 5 and the limiting ring 542. A limiting block 661 for connecting the elastic rope 65 is provided on the outer side of the guide bar clamping plate 66. A plurality of clamping notches 662 are provided on the guide bar clamping plate 66, and the plurality of clamping notches 662 are distributed around the center of the guide bar clamping plate 66.

[0075] When the limiting block 661 contacts one end of the semicircular frame 541 , the plurality of clamping notches 662 overlap with the corresponding plurality of guide bar guide grooves 551 .

[0076] Specifically, the guide bar clamping assembly 6 is achieved by installing two guide bar clamping plates 66 respectively under the two guide bar positioning plates 55, and providing a plurality of clamping slots 662 on the guide bar clamping plates 66 to cooperate with the plurality of guide bar guide grooves 551 for the copper guide bars 3 to pass through. After the plurality of copper guide bars 3 pass through the two guide bar positioning plates 55 and the two guide bar clamping plates 66, the two guide bar clamping plates 66 can be controlled to rotate so that the two guide bar clamping plates 66 can push all the copper guide bars 3 from one end of the guide bar guide groove 551 to the other end until all the copper guide bars 3 are clamped at the end of the guide bar guide groove 551 with a smaller size. When all the copper guide bars 3 are clamped by the two guide bar clamping plates 66, all the copper guide bars 3 are in a parallel state.

[0077] Furthermore, the rotation of the two guide bar clamping plates 66 is specifically controlled by extending the output end of the electric push rod 63 so that the second slider 62 slides on the second slide frame 61, and the vertical rod 64 fixedly connected to the second slider 62 slides and moves synchronously. At this time, the moving vertical rod 64 elastically pulls the two guide bar clamping plates 66 through two elastic ropes 65, thereby causing the two guide bar clamping plates 66 to rotate.

[0078] Furthermore, since the semicircular frame 541 is a circular frame structure with a notch, and the outer side of the guide bar clamping disk 66 is provided with a limit block 661 that can move in the notch of the semicircular frame 541, in the initial state of the guide bar clamping disk 66, the limit block 661 is at one end of the semicircular frame 541. At this time, the multiple clamping notches 662 on the guide bar clamping disk 66 overlap with the multiple guide bar guide grooves 551 on the guide bar positioning disk 55, which is convenient for passing the copper guide bar 3. When the guide bar clamping disk 66 rotates, the multiple clamping notches 662 on the guide bar clamping disk 66 gradually begin to not overlap with the multiple guide bar guide grooves 551 on the guide bar positioning disk 55. At this time, the structure between the two adjacent guide bar clamping disks 66 plays the role of a clamping structure, cooperating with the inner wall of the guide bar guide groove 551 to clamp the copper guide bar 3.

[0079] It is worth noting that the guide bar clamping plate 66 is installed between the guide bar positioning plate 55 and the corresponding semicircular frame 541, and the outer edge of the bottom end of the guide bar clamping plate 66 is supported by the semicircular frame 541, and the semicircular frame 541 does not cover the multiple limit blocks 661, so the guide bar clamping plate 66 can rotate and the weight is supported by the semicircular frame 541, and the copper guide bar 3 will not be blocked by the semicircular frame 541 when passing through the limit block 661.

[0080] Among them, the end ring clamping assembly 7 includes a third sliding frame 71 fixedly connected to the turntable 4, a third sliding block 72 is longitudinally slidably connected to the third sliding frame 71, a second screw rod 73 for passing through the third sliding block 72 and threadedly connected to the third sliding block 72 is rotatably connected to the third sliding frame 71, a second rotary handle 74 is provided on the top of the second screw rod 73, two clamping arms 75 symmetrically distributed about the central axis of the third sliding block 72 are rotatably connected to the third sliding block 72, a movable rod 76 for passing through the other clamping arm 75 is rotatably connected to one clamping arm 75, a spring 77 located between the two clamping arms 75 is sleeved on the movable rod 76, an arc-shaped positioning groove 78 for supporting the copper ring 21 is provided on the inner side of the two clamping arms 75, and a scale line for indicating the height of the third sliding block 72 is provided on the third sliding frame 71.

[0081] Specifically, after all the copper conductor bars 3 are clamped, it is first necessary to weld the multiple copper rings 21 of the end ring 2 at one end of the rotor. This is done by first passing a copper ring 21 through multiple copper conductor bars 3 and then using the end ring clamping assembly 7 to clamp the copper conductor bar 3 to facilitate welding of the copper conductor bar 3. The specific clamping method is to rotate the second rotary handle 74 so that the third slider 72 is lifted and lowered under the action of the thread on the second screw rod 73. When the two clamping arms 75 on the third slider 72 are lifted and lowered to an appropriate height, the two clamping arms 75 are pushed apart, and the copper ring 21 passing through multiple copper conductor bars 3 is inserted into the arc-shaped positioning groove 78 between the two clamping arms 75. Then, the second rotary handle 74 is rotated to adjust the height of the copper ring 21 until the copper ring 21 clamped on the two clamping arms 75 is at the corresponding welding position on the multiple copper conductor bars 3.

[0082] When the two clamping arms 75 are opened, the two clamping arms 75 rotate. At this time, the movable rod 76 rotatably connected on one clamping arm 75 continues to extend into the other clamping arm 75. At this time, the spring 77 is continuously squeezed by the ends of the two clamping arms 75. When the copper ring 21 is placed in the arc-shaped positioning groove 78 on the two clamping arms 75, the two clamping arms 75 are released, and the spring 77 can be released so that the two clamping arms 75 clamp the copper ring 21. The copper ring 21 is in the arc-shaped positioning groove 78 of the two clamping arms 75, indicating that the copper ring 21 is at a constant height on the third slider 72. At this time, when the third slider 72 is raised and lowered, the height of the copper ring 21 can be intuitively reflected by observing the scale line on the third slide frame 71, which is convenient for more accurate welding of the copper ring 21.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, 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 invention.

Claims

1. A welding device for a multi-end ring rotor, comprising a turntable (4) and a multi-end ring rotor, characterized in that: The multi-end ring rotor comprises a rotor core (1), which is composed of a plurality of rotor plates (11) arranged at equal intervals, and the plurality of rotor plates (11) are all located on the same central axis; Two end rings (2), which are respectively located at two ends of the rotor core (1), and each of the end rings (2) is composed of a plurality of copper rings (21) arranged at equal distances; A plurality of copper conductive bars (3) for passing through the plurality of rotor sheets (11) of the rotor core (1) and the plurality of copper rings (21) of the two end rings (2); A through hole is provided at the center of each rotor plate (11), and a conductor bar through hole (111) for the copper conductor bar (3) to pass through is provided on each rotor plate (11), and a plurality of conductor bar through holes (111) are evenly distributed around the center of the rotor plate (11); Each of the copper rings (21) is provided with a conductor bar welding hole (211) for the copper conductor bar (3) to pass through, a plurality of the conductor bar welding holes (211) are evenly distributed around the center of the copper ring (21), and four inner walls of each of the conductor bar welding holes (211) are inclined surfaces so that the size of a port on one side is larger than the size of a port on the other side; The rotating disk (4) is connected to a guide bar positioning assembly (5), a guide bar clamping assembly (6) and an end ring clamping assembly (7); The conductor bar positioning assembly (5) is used to place a plurality of copper conductor bars (3) distributed in a ring shape; The conductor bar clamping assembly (6) is used to cooperate with the conductor bar positioning assembly (5) to clamp a plurality of copper conductor bars (3), and the conductor bar clamping assembly (6) and the conductor bar positioning assembly (5) can clamp together to form two clamping points on each copper conductor bar (3) so that each copper conductor bar (3) remains parallel; An end ring clamping assembly (7) for clamping the copper ring (21) and keeping the copper ring (21) in a horizontal state; The guide bar positioning assembly (5) comprises a first slide frame (51) fixedly connected to the rotating disk (4), a first slider (52) being longitudinally slidably connected inside the first slide frame (51), a first screw rod (53) being rotatably connected to the first slide frame (51) for passing through the first slider (52) and being threadedly connected to the first slider (52), a first rotary handle (56) being provided at the top end of the first screw rod (53), a connecting block (54) being connected to the first slide frame (51) and the first slider (52), two connecting blocks (54) being provided with guide bar positioning disks (55) for allowing a plurality of the copper guide bars (3) to pass through, and the central axes of the two guide bar positioning disks (55) always coincide with each other.

2. The welding equipment for a multi-end ring rotor according to claim 1, characterized in that: The connecting block (54) is fixedly connected to one side of the first sliding frame (51) or the first sliding block (52); a semicircular frame (541) is provided on the other side of the connecting block (54); a limiting ring (542) is connected to the bottom end of the semicircular frame (541); the limiting ring (542) and the semicircular frame (541) are located on the same central axis; The guide bar positioning disk (55) is fixedly connected to the inner side of the semicircular frame (541); the guide bar positioning disk (55) is parallel to the limiting ring (542); and there is a gap between the bottom end of the guide bar positioning disk (55) and the limiting ring (542).

3. The welding equipment for a multi-end ring rotor according to claim 2, characterized in that: The guide bar positioning disk (55) is provided with a plurality of guide bar guide grooves (551) for the copper guide bar (3) to pass through; the plurality of guide bar guide grooves (551) are evenly distributed around the center of the guide bar positioning disk (55); the inner diameter of one end of the guide bar guide groove (551) is consistent with the width of the copper guide bar (3) and is smaller than the inner diameter of the other end of the guide bar guide groove (551).

4. The welding equipment for a multi-end ring rotor according to claim 3, characterized in that: The guide bar clamping assembly (6) comprises a second sliding frame (61) fixedly connected to the rotating disk (4); a second sliding block (62) is slidably connected to the second sliding frame (61); an electric push rod (63) for driving the second sliding block (62) to slide is installed on the second sliding frame (61); a vertical rod (64) is provided on the second sliding block (62); two elastic ropes (65) are connected to the vertical rod (64); and the ends of the two elastic ropes (65) are connected to the guide bar clamping disk (66).

5. The welding equipment for a multi-end ring rotor according to claim 4, characterized in that: The guide bar clamping disk (66) is rotatably connected to the inner side of a semicircular frame (541), and the guide bar clamping disk (66) is located between the corresponding guide bar positioning assembly (5) and the limiting ring (542), and a limiting block (661) for connecting the elastic rope (65) is provided on the outer side of the guide bar clamping disk (66), and a plurality of clamping notches (662) are provided on the guide bar clamping disk (66), and the plurality of clamping notches (662) are distributed around the center of the guide bar clamping disk (66); When the limiting block (661) contacts one end of the semicircular frame (541), the plurality of clamping notches (662) overlap with the corresponding plurality of guide bar guide grooves (551).

6. The welding equipment for a multi-end ring rotor according to claim 1, characterized in that: The end ring clamping assembly (7) comprises a third slide frame (71) fixedly connected to the rotating disk (4), a third slider (72) being longitudinally slidably connected to the third slide frame (71), a second screw rod (73) being rotatably connected to the third slider (72) and being threadedly connected to the third slider (72), a second rotary handle (74) being provided at the top of the second screw rod (73), two clamping arms (75) being rotatably connected to the third slider (72) and being symmetrically distributed about the central axis of the third slider (72), a movable rod (76) being rotatably connected to one of the clamping arms (75) and being used to pass through the other clamping arm (75), a spring (77) being sleeved on the movable rod (76) and being located between the two clamping arms (75), an arc-shaped positioning groove (78) for supporting the copper ring (21) being provided on the inner sides of the two clamping arms (75), and a scale line for indicating the height of the third slider (72) being provided on the third slide frame (71).

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