Rotary stator core welding device

Abstract

The invention provides a rotary stator core welding device, and relates to the field of stator core welding, the rotary stator core welding device comprises a welding support table, the front side of the upper end surface of the welding support table is provided with a circular through hole, two bearings B are mounted in the circular through hole, and inner rings of the two bearings B are fixedly connected with a rotating cylinder; the upper end of the rotating cylinder is fixedly connected with a circular rotating table, and a positioning assembly is arranged on the circular rotating table. Through the collaborative design of the positioning assembly and the driving assembly, the expanding and supporting range of the four expanding and supporting rods can be rapidly adjusted, so that stator iron cores of different specifications can be rapidly adapted, the adaptability of the positioning structure on the stator iron core welding device is improved, no assembly needs to be replaced, and the positioning time of the stator iron cores during welding is greatly shortened; the problem that the adaptability of a positioning structure is reduced due to the fact that an existing stator iron core welding device is limited by the fixed size of the positioning structure and is difficult to quickly adapt to stator iron cores of different specifications during use is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of stator core welding, and in particular to a rotary stator core welding device. Background Art

[0002] In motor manufacturing, the stator core is a key component, and its quality has a decisive impact on the motor's performance and service life. The stator core is made of multiple laminated silicon steel sheets. To ensure the integrity and stability of the core, the sheets are welded together.

[0003] The operating process of the existing stator core welding device is as follows: first, multiple silicon steel sheets are placed on a fixed positioning structure that is adapted to the inner circumference size of the silicon steel sheets to complete positioning, then compacted using a downward pressure device, and finally welded using an automatic welding gun. However, due to the fixed size of the positioning structure, it is difficult to quickly adapt to stator cores of different specifications, thereby reducing the adaptability of the positioning structure. In addition, after the stator core is welded, since the downward pressure device on the stator core welding device does not have a reverse lifting function, the stator core needs to be manually lifted off the positioning structure, which not only increases the physical burden on the operator but also affects production efficiency. Summary of the Invention

[0004] The present invention relates to a rotary stator core welding device, which solves the problem that, during use, existing stator core welding devices are limited by the fixed size of a positioning structure, making it difficult to quickly adapt to stator cores of different specifications, thereby reducing the adaptability of the positioning structure. In addition, after welding, the stator core needs to be manually lifted and detached from the positioning structure, which not only increases the physical burden but also affects production efficiency.

[0005] According to a first aspect of the present invention, a rotary stator core welding device is provided, specifically comprising: a welding support platform, wherein a circular through hole is formed on the front side of the upper end of the welding support platform, and two bearings B are installed in the circular through hole, and the inner rings of the two bearings B are fixedly connected to a rotating cylinder; a circular rotating platform is fixedly connected to the upper end of the rotating cylinder, and a positioning assembly is provided on the circular rotating platform; an intermittent drive mechanism is provided at the bottom of the welding support platform; two fixing rods are fixedly connected to the bottom of the welding support platform, and the lower ends of the two fixing rods are fixedly connected to a rectangular support plate; a driving assembly is mounted on the rectangular support plate; four rectangular sliding openings are formed in an annular array on the upper end surface of the circular rotating platform; the positioning assembly includes four expansion rods, and the four expansion rods are respectively slidably connected to the four rectangular sliding openings, and each expansion rod is fixedly connected to two sliding posts; the driving assembly includes a circular driving plate, and eight rectangular driving plates are fixedly connected to the upper end surface of the circular driving plate in an annular array, and each rectangular driving plate has an inclined through hole, and the inclined through hole is slidably connected to the sliding post.

[0006] Furthermore, an L-shaped support frame is fixedly installed on the rear side of the upper end surface of the welding support platform, and a rectangular opening is opened at the lower part of the rear end surface of the L-shaped support frame, four vertical guide rods are fixedly connected to the inside of the rectangular opening, and a sliding block is slidably connected to the inside of the rectangular opening through four vertical guide rods, and an automatic welding gun is installed on the front side of the sliding block; an adjusting motor is installed on the rear end surface of the L-shaped support frame, and a threaded rod is fixedly connected to the lower end of the rotating shaft of the adjusting motor, the lower end of the threaded rod is rotatably connected to the upper end surface of the welding support platform, and a nut is threadedly connected to the outside of the threaded rod, and the nut is fixedly connected to the rear side of the sliding block; a control box is installed on the left side of the front side of the welding support platform.

[0007] Furthermore, the upper end surface of the circular rotating table is provided with four strip grooves in a circular array; the bottom of the rotating cylinder is provided with twelve sliding wheels in a circular array; and each of the rectangular sliding openings has two strip sliding grooves therein.

[0008] Furthermore, each of the expansion rods is fixedly connected to two rectangular sliders, and the rectangular sliders are slidably connected to the strip-shaped sliding grooves.

[0009] Furthermore, the intermittent drive mechanism includes a servo motor and a drive roller, the servo motor is installed at the bottom of the welding support platform, the drive roller is rotatably connected to the bottom of the welding support platform, and the drive roller is fixedly connected to the rotating shaft of the servo motor; two spiral stripes are provided on the outside of the drive roller, and a C-shaped stripe is provided between the two spiral stripes.

[0010] Furthermore, the bottom end surface of the circular driving plate is fixedly connected to a cylinder, and a bearing A is installed in the cylinder, the inner ring of the bearing A is fixedly connected to a square sliding column, and a sliding sleeve is fixedly connected to the left and right sides of the square sliding column, and the two sliding sleeves are slidably connected to two fixed rods respectively; the lower end of the square sliding column is fixedly connected to a driving screw that penetrates the rectangular support plate, and the outside of the driving screw is connected to a threaded cylinder through a thread, and the threaded cylinder is rotatably connected to the bottom of the rectangular support plate, and a driven gear is installed on the outside of the threaded cylinder; the driving assembly also includes a driving motor, which is installed at the bottom of the rectangular support plate, and a driving gear is installed on the upper end of the rotating shaft of the driving motor, and the driving gear is meshed with the driven gear; the front end surface of the square sliding column is evenly provided with a one-way slot.

[0011] Furthermore, the L-shaped support frame is provided with a downward pressing fixing mechanism, and the downward pressing fixing mechanism includes a hydraulic cylinder, which is fixedly installed on the front side of the top end of the L-shaped support frame, and the telescopic rod of the hydraulic cylinder passes through the top of the L-shaped support frame, and the lower end of the telescopic rod of the hydraulic cylinder is rotatably connected to the X-shaped downward pressing frame, and a downward pressing ring is fixedly installed on the bottom of the X-shaped downward pressing frame; an automatic material lifting component is provided on both sides of the X-shaped downward pressing frame.

[0012] Furthermore, the automatic material lifting assembly includes an upper arc plate, which is fixedly connected to the X-shaped lower pressure frame, and the bottom end surface of the upper arc plate is fixedly connected to two guide cylinders in a front-to-back symmetrical shape, each guide cylinder is slidably connected to a lifting slide rod, and the lifting slide rod passes through the upper arc plate, and the upper end of each lifting slide rod is fixedly connected to a circular limit block, the lower ends of the two lifting slide rods are fixedly connected to the lower arc plate, and the front and rear ends of the lower arc plate are fixedly connected to a rectangular support rod.

[0013] Furthermore, it also includes a one-way limit mechanism, which includes a rectangular sliding shell, which is fixedly mounted on the upper part of the rectangular support plate, and a rectangular sliding block is slidably connected to the inside of the rectangular support plate, the rear end face of the rectangular sliding block is fixedly connected to a tightening block that passes through the rear side wall of the rectangular sliding shell, and the rear end of the tightening block is fixedly connected to a one-way limit tooth, and the shape of the one-way limit tooth is triangular; the front end face of the rectangular sliding block is fixedly connected to a pulley that passes through the front side wall of the rectangular sliding shell, and the outside of the pull rope is slidably connected to a pulley, and the pulley is installed on the front side of the bottom of the welding support platform, the outside of the pull rope is located inside the rectangular sliding shell and is provided with a spring, the lower end of the pull rope is fixedly connected to a pedal, and the left and right sides of the pedal are slidably connected to a guide rail, and the two guide rails are fixedly mounted on the two support legs on the front side of the bottom of the welding support platform.

[0014] Furthermore, when the one-way limiting mechanism is in the one-way limiting state, the one-way limiting tooth is engaged with one of the one-way slots.

[0015] The present invention provides a rotary stator core welding device, which has the following beneficial effects: The present invention can quickly adjust the expansion range of the four expansion rods through the coordinated design of the positioning component and the driving component. During specific operation, it is only necessary to control the forward and reverse rotation of the driving motor shaft to move the eight rectangular driving plates up and down at the same time. When the eight rectangular driving plates move downward, they cooperate with the inclined through-holes to move the eight sliding columns and the four expansion rods outward at the same time. When the eight rectangular driving plates move upward, they cooperate with the inclined through-holes to move the eight sliding columns and the four expansion rods inward at the same time. This stepless adjustment mechanism can complete the span adjustment from the minimum inner diameter to the maximum inner diameter in a short time, so that it can quickly adapt to stator cores of different specifications, thereby improving the adaptability of the positioning structure on the stator core welding device, and there is no need to replace any components, which greatly shortens the positioning time of the stator core during welding.

[0016] The present invention adopts the coordinated design of the downward pressing fixing mechanism and the automatic material lifting assembly. After the outer circle of the silicon steel sheets of the stator core is completely welded, when the material is taken out, the telescopic rod of the hydraulic cylinder can move the X-shaped downward pressing frame, the automatic material lifting assembly and the stator core upward in a straight line to realize the automatic lifting of the welded stator core. This innovative design abandons the traditional manual operation method of lifting the stator core from the positioning assembly, significantly reduces the physical burden of the operator, effectively shortens the material taking time, and thus greatly improves the overall production efficiency.

[0017] The present invention realizes the automatic locking function of the four expansion rods during the expansion positioning process through the innovative design of the one-way limit mechanism, which significantly improves the stability and reliability of the stator core welding process. Specifically, when the square slide column moves downward, the one-way slot thereon will slide past the rear end of the one-way limit tooth in sequence. When the square slide column stops moving downward and completes the expansion positioning operation, the spring at the front end of the rectangular sliding block immediately releases the elastic force, pushing the tightening block and the one-way limit tooth to move backward, so that the one-way limit tooth automatically snaps into the corresponding one-way slot. This self-locking structure forms an effective reverse stopping mechanism, which prevents the square slide column from moving upward, thereby ensuring that the four expansion rods maintain a constant radial pressure in the expanded state, thereby improving the accuracy of the stator core during welding.

[0018] The present invention adopts the coordinated design of the pull rope, pulley, pedal and guide rail. When the four expansion rods need to be retracted inward, the pedal can be pressed down by the foot, and the rectangular sliding block, the tightening block and the one-way limit teeth are moved forward by the pull rope, so that the one-way limit teeth are separated from the one-way slot. Then, the control box can be used to control the motor shaft to rotate forward, and finally the four expansion rods can be retracted inward, avoiding the obstruction of the one-way limit teeth to the retraction operation of the four expansion rods, thereby further improving the reliability of the stator core welding device when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the present invention, the accompanying drawings of the present invention will be briefly introduced below.

[0020] In the attached figure: Figure 1 A structural diagram showing the overall structure of the present application; Figure 2 A schematic diagram of a partial cross-section of the L-shaped support frame of the present application is shown; Figure 3 A schematic diagram showing the structure of the present application in a split state is shown; Figure 4 A schematic diagram showing the structure of the present application from a bottom perspective is shown; Figure 5A schematic structural diagram showing a first perspective of the rotating table, rotating cylinder, sliding wheel and intermittent drive mechanism of the present application is shown; Figure 6 A schematic structural diagram from a second perspective of the rotary table, rotating drum, sliding wheel, and intermittent drive mechanism of the present application is shown; Figure 7 It shows a schematic diagram of the structure of the sliding wheel and intermittent drive mechanism after being disassembled; Figure 8 A schematic structural diagram of the rotary table, positioning assembly, and driving assembly of the present application is shown; Figure 9 A schematic diagram of a partially cutaway structure of the rotary table of the present application is shown; Figure 10 A schematic structural diagram of the positioning assembly, the circular driving plate, the rectangular driving plate, and the strip-shaped opening of the present application is shown; Figure 11 It shows a schematic structural diagram of the driving component of the present application; Figure 12 A schematic structural diagram of a square sliding post and a one-way slot of the present application is shown; Figure 13 A schematic diagram of a partially cutaway structure of a square sliding column of the present application is shown; Figure 14 A schematic diagram of the structure of the one-way limiting mechanism of the present application after removing the rectangular sliding housing and the pulley is shown; Figure 15 It shows a schematic structural diagram of the downward pressing fixing mechanism and the automatic material lifting assembly of the present application; Figure 16 A structural schematic diagram of the automatic material lifting component of the present application is shown in a raised state.

[0021] Reference Signs List 1. Welding support platform; 101. L-shaped support frame; 102. Rectangular opening; 103. Control box; 104. Adjustment motor; 105. Threaded rod; 106. Nut; 107. Sliding block; 108. Automatic welding gun; 109. Circular through hole; 1010. Fixing rod; 1011. Rectangular support plate; 2. Circular rotating table; 201. Rotating cylinder; 202. Bearing B; 203. Rectangular sliding opening; 204. Strip groove; 205. Sliding wheel; 206. Strip slide; 3. Positioning assembly; 301. Expanding rod; 302. Sliding column; 303. Rectangular slider; 4. Intermittent drive mechanism; 401. Servo motor; 402. Drive roller; 403. Spiral stripes; 404. C-shaped stripes; 5. Driving assembly; 501. Circular driving plate; 502. Cylinder; 503. Bearing A; 504. Square slide column; 505. Sliding sleeve; 506. Threaded cylinder; 507. Driving screw; 508. Driving motor; 509. Rectangular driving plate; 5010. Inclined opening; 5011. One-way slot; 6. Pressing and fixing mechanism; 601. Hydraulic cylinder; 602. X-shaped pressing frame; 603. Pressing ring; 7. Automatic material lifting assembly; 701. Upper curved plate; 702. Guide cylinder; 703. Lifting slide bar; 704. Lower curved plate; 705. Rectangular support rod; 8. One-way limiting mechanism; 801. Rectangular sliding housing; 802. Rectangular sliding block; 803. Tightening block; 804. Pull rope; 805. Pulley; 806. Pedal; 807. Guide rail; 808. One-way limiting tooth. DETAILED DESCRIPTION

[0022] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Example 1: Please refer to Figures 1 to 16 : The present invention proposes a rotary stator core welding device, comprising: a welding support platform 1, a circular through hole 109 is provided on the front side of the upper end face of the welding support platform 1, and two bearings B202 are installed inside the circular through hole 109, and the inner rings of the two bearings B202 are fixedly connected to a rotating cylinder 201; the upper end of the rotating cylinder 201 is fixedly connected to a circular rotating platform 2, and a positioning component 3 is provided on the circular rotating platform 2; an intermittent driving mechanism 4 is provided at the bottom of the welding support platform 1; two fixed rods 1010 are fixedly connected to the bottom of the welding support platform 1, and the lower ends of the two fixed rods 1010 are fixedly connected to a rectangular support plate 1011; a driving component 5 is installed on the rectangular support plate 1011; the upper end face of the circular rotating platform 2 is provided with four rectangular sliding openings 203 in a ring array; the positioning component 3 includes an expansion rod 301, the expansion rod 302, and the expansion rod 303. There are four 01s, and the four expansion rods 301 are slidably connected to the four rectangular sliding openings 203 respectively, and each expansion rod 301 is fixedly connected to two sliding columns 302; the driving component 5 includes a circular driving plate 501, and the upper end surface of the circular driving plate 501 is fixedly connected to eight rectangular driving plates 509 in a ring array, and each rectangular driving plate 509 is provided with an inclined through opening 5010, and the inclined through opening 5010 is slidably connected to the sliding column 302; through the coordinated design of the positioning component 3 and the driving component 5, the expansion range of the four expansion rods 301 can be quickly adjusted. This stepless adjustment mechanism can complete the span adjustment from the minimum inner diameter to the maximum inner diameter in a short time, so that it can quickly adapt to stator cores of different specifications, thereby improving the adaptability of the positioning structure on the stator core welding device.

[0024] An L-shaped support frame 101 is fixedly installed on the rear side of the upper end face of the welding support platform 1, and a rectangular opening 102 is opened at the lower part of the rear end face of the L-shaped support frame 101, four vertical guide rods are fixedly connected to the inside of the rectangular opening 102, and a sliding block 107 is slidably connected to the inside of the rectangular opening 102 through four vertical guide rods, and an automatic welding gun 108 is installed on the front side of the sliding block 107 for automatic welding of the stator core; an adjusting motor 104 is installed on the rear end face of the L-shaped support frame 101, and a threaded rod 105 is fixedly connected to the lower end of the rotating shaft of the adjusting motor 104, the lower end of the threaded rod 105 is rotatably connected to the upper end face of the welding support platform 1, and a nut 106 is threadedly connected to the outside of the threaded rod 105, and the nut 106 is fixedly connected to the rear side of the sliding block 107; a control box 103 is installed on the left front side of the welding support platform 1.

[0025] The upper end surface of the circular rotating table 2 is provided with four strip grooves 204 in a circular array; twelve sliding wheels 205 are installed in a circular array at the bottom of the rotating cylinder 201; two strip slide grooves 206 are provided inside each rectangular slide 203; each expansion rod 301 is fixedly connected to two rectangular sliders 303, and the rectangular sliders 303 are slidably connected to the strip slide grooves 206, so that the expansion rod 301 is effectively guided.

[0026] The intermittent drive mechanism 4 includes a servo motor 401 and a drive roller 402. The servo motor 401 is installed at the bottom of the welding support platform 1, and the drive roller 402 is rotatably connected to the bottom of the welding support platform 1, and the drive roller 402 is fixedly connected to the rotating shaft of the servo motor 401; two spiral stripes 403 are provided on the outside of the drive roller 402, and a C-shaped stripe 404 is provided between the two spiral stripes 403; the spiral stripes 403 and the C-shaped stripe 404 can be slidably connected to the sliding wheel 205; the rotating shaft of the servo motor 401 rotates one circle each time. When the servo motor 401 rotates the drive roller 402, the spiral stripe 403 and the C-shaped stripe 404 for one circle, the sliding wheel 205 rotates the rotating cylinder 201 and the circular rotating table 2 for one tenth of a circle, that is, thirty degrees; through the setting of the intermittent drive mechanism 4, the circular rotating table 2, the positioning assembly 3 and multiple silicon steel sheets can be intermittently rotated, thereby realizing 360-degree welding of the outer periphery of multiple silicon steel sheets.

[0027] The bottom end surface of the circular driving plate 501 is fixedly connected to a cylinder 502, and a bearing A503 is installed in the cylinder 502. The inner ring of the bearing A503 is fixedly connected to a square sliding column 504. A sliding sleeve 505 is fixedly connected to the left and right sides of the square sliding column 504, and the two sliding sleeves 505 are respectively slidably connected to the two fixed rods 1010; the lower end of the square sliding column 504 is fixedly connected to a driving screw 507 that passes through the rectangular support plate 1011, and the outside of the driving screw 507 is connected to a threaded cylinder 506 through a thread, and the threaded cylinder 506 is rotatably connected At the bottom of the rectangular support plate 1011, a driven gear is installed on the outside of the threaded cylinder 506; the driving component 5 also includes a driving motor 508, which is installed at the bottom of the rectangular support plate 1011, and a driving gear is installed on the upper end of the rotating shaft of the driving motor 508, and the driving gear is engaged with the driven gear; the front end surface of the square sliding column 504 is evenly provided with a one-way card slot 5011, and the vertical cross-section shape of the one-way card slot 5011 is triangular; the driving motor 508, the servo motor 401, and the adjustment motor 104 are all electrically connected to the control box 103.

[0028] The L-shaped support frame 101 is provided with a downward pressing fixing mechanism 6, which includes a hydraulic cylinder 601, which is fixedly installed on the front side of the top of the L-shaped support frame 101, and the telescopic rod of the hydraulic cylinder 601 passes through the top of the L-shaped support frame 101, and the lower end of the telescopic rod of the hydraulic cylinder 601 is rotatably connected to the X-shaped downward pressing frame 602 to avoid obstruction to the intermittent rotation of the circular rotary table 2, the positioning component 3 and the multiple silicon steel sheets, and a downward pressing ring 603 is fixedly installed on the bottom of the X-shaped downward pressing frame 602; an automatic lifting component 7 is provided on the left and right sides of the X-shaped downward pressing frame 602; the automatic lifting component 7 includes an upper curved plate 701, the upper curved plate 701 is fixedly connected to the X-shaped downward pressing frame 602, and the bottom end surface of the upper curved plate 701 is symmetrically connected to two guide cylinders 702 in a front-to-back shape, and each guide cylinder 702 is slidably connected to a lifting slide rod 70 3, and the lifting slide 703 passes through the upper arc plate 701, and the upper end of each lifting slide 703 is fixedly connected to a circular limit block, the lower end of the two lifting slides 703 is fixedly connected to the lower arc plate 704, and the front and rear ends of the lower arc plate 704 are fixedly connected to a rectangular support rod 705; the width of the strip groove 204 is greater than the width of the rectangular support rod 705, which facilitates the rectangular support rod 705 to quickly fall into the strip groove 204; through the coordinated design of the downward pressing fixing mechanism 6 and the automatic lifting assembly 7, after the outer circle of the silicon steel sheet of the stator core is completely welded, when the material is taken out, the telescopic rod of the hydraulic cylinder 601 can be used to move the X-shaped lower pressing frame 602, the automatic lifting assembly 7 and the stator core upward in a straight line to realize automatic lifting of the welded stator core, reduce the physical burden of the operator, shorten the material taking time, and thus improve the overall production efficiency.

[0029] Example 2, based on Example 1, Figure 1 and Figure 13As shown, it also includes a one-way limiting mechanism 8, which includes a rectangular sliding shell 801, which is fixedly mounted on the upper part of the rectangular support plate 1011, and a rectangular sliding block 802 is slidably connected inside the rectangular support plate 1011, and the rear end face of the rectangular sliding block 802 is fixedly connected to a tightening block 803 that passes through the rear side wall of the rectangular sliding shell 801, and the rear end of the tightening block 803 is fixedly connected to a one-way limiting tooth 808, and the shape of the one-way limiting tooth 808 is triangular; the front end face of the rectangular sliding block 802 is fixedly connected to a pull rope 804 that passes through the front side wall of the rectangular sliding shell 801, and the pull rope 804 is slidably connected to the outside of the pull rope 805, and the pulley 805 It is installed on the front bottom side of the welding support platform 1, and the outside of the pull rope 804 is located inside the rectangular sliding shell 801 and is provided with a spring. The lower end of the pull rope 804 is fixedly connected to a pedal 806, and the left and right sides of the pedal 806 are slidably connected to a guide rail 807, and the two guide rails 807 are fixedly installed on the two support legs on the front bottom side of the welding support platform 1; when the one-way limiting mechanism 8 is in the one-way limiting state, the one-way limiting tooth 808 is engaged with one of the one-way slots 5011; through the setting of the one-way limiting mechanism 8, the automatic locking function of the four expansion rods 301 during the expansion positioning process is realized, which significantly improves the stability and reliability of the stator core welding process.

[0030] The working principle of the present invention is as follows: when in use, the multiple silicon steel sheets to be welded are first placed on the upper part of the four rectangular support rods 705, and then the telescopic rod of the hydraulic cylinder 601 drives the X-shaped lower pressure frame 602, the automatic lifting assembly 7 and the multiple silicon steel sheets to move downward in a straight line. When the four rectangular support rods 705 fall into the four strip grooves 204, the hydraulic cylinder 601 stops operating, and then the control box 103 controls the driving motor 508 to reverse the rotation shaft. At this time, the driving gear will drive the driven gear and the threaded barrel 506 to rotate forward, and then drive the screw 507 to move downward with the square slide column 504, bearing A503, cylinder 502, circular drive plate 501 and eight rectangular drive plates 509 under the action of the thread. At the same time, the eight rectangular drive plates 509 that move downward cooperate with the inclined through-hole 5010 to drive the eight slide columns 302 to move outward at the same time, thereby driving the four expansion supports. The rods 301 move outward at the same time, so that the silicon steel sheets of the stator core are expanded and centered, so that the silicon steel sheets of the stator core are on the same axis as the circular rotating table 2, and through the cooperation of the positioning component 3 and the driving component 5, the expansion range of the four expansion rods 301 can be quickly adjusted, so that stator cores of different specifications can be quickly adapted, thereby improving the adaptability of the positioning structure on the stator core welding device; then, the telescopic rod of the hydraulic cylinder 601 drives the X-shaped lower pressure frame 602 and the lower pressure ring 603 to move downward in a straight line, and the silicon steel sheets of the stator core are compacted by the lower pressure ring 603, and then the control box 103 controls the adjustment motor 104 to rotate the threaded rod 105 forward and reverse, and the nut 106 drives the sliding block 107 and the automatic welding gun 108 to move up and down under the action of the thread, and then the automatic welding gun 108 is used to weld multiple silicon steel sheets; During the welding process of multiple silicon steel sheets, the control box 103 controls the rotating shaft of the servo motor 401 to rotate one circle, causing the driving roller 402, the spiral stripes 403 and the C-shaped stripes 404 to rotate one circle. Then, the sliding wheel 205, under the action of the spiral stripes 403, causes the rotating cylinder 201 and the circular rotating table 2 to rotate one tenth of a circle, that is, thirty degrees, thereby causing the positioning component 3 and the multiple silicon steel sheets to rotate thirty degrees. By performing such intermittent rotational motion, 360-degree welding can be performed on the outer periphery of the multiple silicon steel sheets.

[0031] After the outer circle of the silicon steel sheet of the stator core is completely welded, first, the pedal 806 is stepped down by the foot, and the rectangular sliding block 802, the tightening block 803 and the one-way limit tooth 808 are moved forward by the pull rope 804, so that the one-way limit tooth 808 is separated from the one-way slot 5011, and then the control box 103 is used to control the motor 508 to rotate forward. At this time, the driving gear will drive the driven gear and the threaded cylinder 506 to reverse, and then drive the screw 507 to move the square sliding column 504, the bearing A503, the cylinder 502, the circular driving plate 501 and the eight rectangular driving plates 509 simultaneously under the action of the thread. When it moves upward, the eight rectangular driving plates 509 that move upward cooperate with the inclined through-holes 5010 to move the eight sliding columns 302 inward at the same time, thereby moving the four expansion rods 301 inward at the same time, so that the silicon steel sheets of the stator core lose their expansion and fixing function, and then the telescopic rod of the hydraulic cylinder 601 drives the X-shaped lower pressure frame 602, the automatic lifting assembly 7 and the stator core to move upward in a straight line, so that the welded stator core is automatically lifted. Therefore, there is no need to manually lift the stator core from the positioning assembly 3, which not only greatly reduces the physical burden of the operator, but also effectively improves the production efficiency.

[0032] During the downward movement of the square slide column 504, Figure 13 As shown, the one-way slot 5011 on the square slide 504 will slide over the rear end of the one-way limit tooth 808 in sequence, and when the square slide 504 stops moving downward, the rectangular sliding block 802 moves backward with the tightening block 803 and the one-way limit tooth 808 under the action of the spring force at its front end, so that the one-way limit tooth 808 is automatically stuck into the corresponding one-way slot 5011, and at this time the square slide 504 cannot move upward, so that the four expansion rods 301 in the expanded state are effectively locked and limited, avoiding the four expansion rods 301 from being loosened under force, thereby significantly improving the reliability of the four expansion rods 301 when expanding and positioning the stator core.

[0033] In this article, there are several points to note: 1. The drawings of the embodiments of the present invention only relate to the structures related to the embodiments of the present invention. Other structures may refer to conventional designs.

[0034] 2. In the absence of conflict, the embodiments of the present invention and the features therein may be combined with each other to form new embodiments.

[0035] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A rotating stator core welding device, comprising: A welding support platform (1), wherein a circular through hole (109) is provided on the front side of the upper end of the welding support platform (1), and two bearings B (202) are installed inside the circular through hole (109), and the inner rings of the two bearings B (202) are fixedly connected to a rotating cylinder (201); it is characterized in that the upper end of the rotating cylinder (201) is fixedly connected to a circular rotating platform (2), and a positioning component (3) is provided on the circular rotating platform (2); an intermittent driving mechanism (4) is provided at the bottom of the welding support platform (1); two fixed rods (1010) are fixedly connected to the bottom of the welding support platform (1), and the lower ends of the two fixed rods (1010) are fixedly connected to a rectangular support plate (1011); a driving assembly is installed on the rectangular support plate (1011). The circular rotating table (2) has an upper end surface with four rectangular sliding openings (203) in a circular array; the positioning assembly (3) includes expansion rods (301), the number of the expansion rods (301) is four, and the four expansion rods (301) are respectively slidably connected to the four rectangular sliding openings (203), and each expansion rod (301) is fixedly connected to two sliding columns (302); the driving assembly (5) includes a circular driving plate (501), the upper end surface of the circular driving plate (501) is fixedly connected to eight rectangular driving plates (509) in a circular array, and each rectangular driving plate (509) is provided with an inclined opening (5010), and the inclined opening (5010) is slidably connected to the sliding column (302).

2. The rotary stator core welding device according to claim 1, characterized in that: An L-shaped support frame (101) is fixedly installed on the rear side of the upper end surface of the welding support platform (1), and a rectangular opening (102) is opened at the lower part of the rear end surface of the L-shaped support frame (101), four vertical guide rods are fixedly connected inside the rectangular opening (102), and a sliding block (107) is slidably connected inside the rectangular opening (102) through the four vertical guide rods, and an automatic welding gun (108) is installed on the front side of the sliding block (107); an adjustment motor (104) is installed on the rear end surface of the L-shaped support frame (101), and a threaded rod (105) is fixedly connected to the lower end of the rotating shaft of the adjustment motor (104), the lower end of the threaded rod (105) is rotatably connected to the upper end surface of the welding support platform (1), and a nut (106) is threadedly connected to the outside of the threaded rod (105), and the nut (106) is fixedly connected to the rear side of the sliding block (107); a control box (103) is installed on the left side of the front side of the welding support platform (1).

3. The rotary stator core welding device according to claim 1, characterized in that: The upper end surface of the circular rotating table (2) is provided with four strip grooves (204) in a circular array; the bottom of the rotating cylinder (201) is provided with twelve sliding wheels (205) in a circular array; and each rectangular sliding opening (203) is provided with two strip sliding grooves (206) therein.

4. The rotary stator core welding device according to claim 3, characterized in that: Two rectangular sliders (303) are fixedly connected to each expansion rod (301), and the rectangular sliders (303) are slidably connected to the strip-shaped slide groove (206).

5. The rotary stator core welding device according to claim 1, characterized in that: The intermittent drive mechanism (4) comprises a servo motor (401) and a drive roller (402), wherein the servo motor (401) is mounted on the bottom of the welding support platform (1), and the drive roller (402) is rotatably connected to the bottom of the welding support platform (1), and the drive roller (402) is fixedly connected to the rotating shaft of the servo motor (401); two spiral stripes (403) are provided on the outside of the drive roller (402), and a C-shaped stripe (404) is provided between the two spiral stripes (403).

6. The rotary stator core welding device according to claim 1, characterized in that: The bottom end surface of the circular driving plate (501) is fixedly connected to a cylinder (502), and a bearing A (503) is installed in the cylinder (502). The inner ring of the bearing A (503) is fixedly connected to a square sliding column (504). The left and right sides of the square sliding column (504) are fixedly connected to a sliding sleeve (505), and the two sliding sleeves (505) are respectively slidably connected to two fixed rods (1010); the lower end of the square sliding column (504) is fixedly connected to a driving screw (507) that passes through the rectangular support plate (1011), and the driving screw (50 7) A threaded barrel (506) is connected to the outside through a threaded connection, and the threaded barrel (506) is rotatably connected to the bottom of the rectangular support plate (1011), and a driven gear is installed on the outside of the threaded barrel (506); the driving assembly (5) also includes a driving motor (508), the driving motor (508) is installed at the bottom of the rectangular support plate (1011), and a driving gear is installed on the upper end of the rotating shaft of the driving motor (508), and the driving gear is meshed with the driven gear; the front end surface of the square slide column (504) is evenly provided with a one-way slot (5011).

7. The rotary stator core welding device according to claim 1, characterized in that: The L-shaped support frame (101) is provided with a downward pressing fixing mechanism (6), and the downward pressing fixing mechanism (6) includes a hydraulic cylinder (601), and the hydraulic cylinder (601) is fixedly installed on the front side of the top end of the L-shaped support frame (101), and the telescopic rod of the hydraulic cylinder (601) passes through the top of the L-shaped support frame (101), and the lower end of the telescopic rod of the hydraulic cylinder (601) is rotatably connected to the X-shaped downward pressing frame (602), and the bottom of the X-shaped downward pressing frame (602) is fixedly installed with a downward pressing ring (603); an automatic material lifting component (7) is provided on both the left and right sides of the X-shaped downward pressing frame (602).

8. The rotary stator core welding device according to claim 7, characterized in that: The automatic material lifting assembly (7) includes an upper arc plate (701), which is fixedly connected to the X-shaped lower pressure frame (602), and the bottom end surface of the upper arc plate (701) is fixedly connected to two guide cylinders (702) in a front-to-back symmetrical shape, each guide cylinder (702) is slidably connected to a lifting slide rod (703) inside, and the lifting slide rod (703) passes through the upper arc plate (701), and the upper end of each lifting slide rod (703) is fixedly connected to a circular limit block, and the lower ends of the two lifting slide rods (703) are fixedly connected to a lower arc plate (704), and the front and rear ends of the lower arc plate (704) are fixedly connected to a rectangular support rod (705).

9. The rotary stator core welding device according to claim 6, characterized in that: The invention also includes a one-way limiting mechanism (8), wherein the one-way limiting mechanism (8) includes a rectangular sliding shell (801), the rectangular sliding shell (801) is fixedly mounted on the upper part of the rectangular support plate (1011), and a rectangular sliding block (802) is slidably connected inside the rectangular support plate (1011), the rear end surface of the rectangular sliding block (802) is fixedly connected to a top tightening block (803) that passes through the rear side wall of the rectangular sliding shell (801), and the rear end of the top tightening block (803) is fixedly connected to a one-way limiting tooth (808), and the one-way limiting tooth (808) is in the shape of a triangle; the rectangular sliding block (802 ) The front end face is fixedly connected to a pull rope (804) that passes through the front side wall of the rectangular sliding shell (801), and the outside of the pull rope (804) is slidably connected to a pulley (805), and the pulley (805) is installed on the front side of the bottom of the welding support platform (1), the outside of the pull rope (804) is located inside the rectangular sliding shell (801) and is provided with a spring, the lower end of the pull rope (804) is fixedly connected to a pedal (806), and the left and right sides of the pedal (806) are slidably connected to a guide rail (807), and the two guide rails (807) are fixedly installed on the two support legs on the front side of the bottom of the welding support platform (1).

10. The rotary stator core welding device according to claim 9, characterized in that: When the one-way limiting mechanism (8) is in the one-way limiting state, the one-way limiting tooth (808) is engaged with one of the one-way clamping slots (5011).

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