Wheel welding equipment with rotatable stations

Abstract

The invention relates to the technical field of wheel welding, in particular to station-rotatable wheel welding equipment which comprises a base, a rim positioning part, a lifting part, a wheel disk positioning part, an adjusting part, a locking part and a welding machine arm, the rim positioning part is fixedly mounted at the top of the base and used for positioning a rim, and the lifting part is fixedly mounted at the top of the base and used for positioning a wheel disk; and the radial plate positioning part is movably mounted at the top of the rim positioning part up and down. The rim is positioned through the rim positioning part, the bottoms of the outer top ring and the inner top ring of the radial plate positioning part are matched to abut against the upper surface of the radial plate, and the outer top ring is arranged in a complete circular shape, so that the top of the radial plate can be in complete contact with the bottom of the outer top ring, and the radial plate and the rim can be tightly positioned. The technical problem that a welding seam is too large due to the fact that a local position is lack of positioning is solved, and the wheel welding quality is improved.

Description

Technical Field

[0001] The invention relates to the technical field of wheel welding, in particular to a wheel welding device with a rotatable workstation. Background Art

[0002] Wheels are usually composed of tires and hubs. The hub is a cylindrical metal part with the inner contour of the tire supporting the tire and the center mounted on the shaft. Hubs are of various types according to diameter, width, molding method, and material. They are divided into forging and welding. The welding process is to fix the wheel rim and the spoke plate of the hub together by welding, so welding hubs cannot be separated from welding equipment;

[0003] According to a Chinese patent with application publication number CN117464232B, an aluminum alloy wheel hub welding device and welding method are disclosed. The wheel rim is connected with two wheel flanges by setting a clamping connection, and two welding machines rotate and weld the connection between the wheel rim and the two wheel flanges respectively, so as to improve the welding efficiency of the aluminum alloy wheel hub. The output end of the electric cylinder is extended to drive the extrusion plate to squeeze the outside of the wheel flange, and the output end of the servo motor is rotated to drive the wheel flange and the wheel rim to rotate and weld synchronously. A plurality of side pressure plates are respectively attached to the outer wall of the wheel rim to play the role of auxiliary support for the wheel rim to prevent deviation. A grinder is rotated to adhere to the welding part to play the role of grinding the welding part. A collection box is fixed under the wheel flange to collect grinding waste.

[0004] After using the above-mentioned aluminum alloy wheel hub welding equipment, we found that the above-mentioned equipment uses an extrusion disk to extrude and position the middle part of the spoke plate. As the diameter of the hub increases, that is, the distance between the extrusion disk and the rim increases, in this case, only by applying pressure to the middle of the spoke plate, it is difficult to ensure that the weld between the spoke plate and the inner wall of the rim is tight due to the long distance between the positioning point and the welding point. For this reason, we propose a wheel welding equipment with a rotatable workstation to solve the above-mentioned technical problems. Summary of the invention

[0005] The present invention provides the following technical solution: a wheel welding device with a rotatable workstation, comprising:

[0006] Base;

[0007] A wheel rim positioning part, fixedly mounted on the top of the base, for positioning the wheel rim;

[0008] A lifting part, fixedly mounted on the top of the base;

[0009] A spoke plate positioning portion is movably mounted on the top of the rim positioning portion, and the spoke plate positioning portion is used for positioning the spoke plate;

[0010] An adjusting portion, located inside the spoke plate positioning portion, and used to drive the spoke plate positioning portion;

[0011] The locking portion is located at the periphery of the spoke plate positioning portion, and the spoke plate positioning portion is used for up and down positioning of the spoke plate positioning portion.

[0012] As a preferred solution of the present invention, the rim positioning portion includes:

[0013] A servo turntable is fixedly mounted on the inner side of the upper surface of the base;

[0014] A support plate is located on the top of the base, and the bottom of the support plate is fixedly mounted on the top of the output shaft of the servo turntable;

[0015] A cylinder fixing seat is fixedly mounted on the top of the support plate. There are four cylinder fixing seats, which are distributed on the top of the support plate in a "cross shape";

[0016] A servo cylinder is fixedly mounted inside a cylinder fixing seat, and the number of the servo cylinders is four;

[0017] A chuck is fixedly mounted on the end of the output rod of the servo cylinder, and the number of the chucks is four.

[0018] As a preferred solution of the present invention, the lifting part includes:

[0019] A guide rod is fixedly mounted on the top of the base, wherein the guide rods are two in number and the two guide rods are symmetrically distributed about the diagonal line of the base;

[0020] A rodless cylinder is slidably mounted on the outer wall of the guide rod, and the number of the rodless cylinders is two;

[0021] The lifting plate is fixedly mounted on the bottom of the two rodless cylinders.

[0022] As a preferred solution of the present invention, the spoke plate positioning portion includes:

[0023] Plane bearing, fixedly mounted on the bottom of the lifting plate;

[0024] The telescopic sleeve is rotatably mounted on the bottom of the plane bearing;

[0025] An outer top ring is slidably mounted inside the telescopic sleeve, and the number of the outer top rings is multiple, and the multiple outer top rings are sequentially distributed inside and outside, and the inner wall of the outer top ring on the outer side is slidably connected with the outer wall of one of the inner outer top rings;

[0026] The inner top ring is slidably mounted inside the innermost outer top ring, and the outer wall of the inner top ring is slidably connected to the inner wall of the innermost outer top ring.

[0027] As a preferred solution of the present invention, the spoke plate positioning portion further includes:

[0028] The derivation blocks are distributed in a "cross shape" at the top of the outer top ring and the top of the inner top ring, and the adjacent surfaces of the derivation blocks are penetrated with plug holes;

[0029] A connecting column is fixedly mounted on the inner side of the lower surface of the inner top ring, the number of the inner top rings is four, and the four inner top rings are arranged at equal distances in the vertical and horizontal directions;

[0030] A horizontal plate is fixedly mounted on the outer walls of the four connecting columns, wherein the number of the horizontal plates is two, and the two horizontal plates have two layers in total;

[0031] The thrust cylinder is fixedly installed on the top of the lifting plate. A through hole is penetrated through the top of the telescopic sleeve. The output rod of the thrust cylinder movably penetrates the through hole, and the bottom of the output rod of the thrust cylinder is rotatably connected to the top of one of the horizontal plates located on the upper layer.

[0032] As a preferred solution of the present invention, the adjustment unit includes:

[0033] The guide rail frames are distributed in a "cross shape" inside the inner top ring, and there are four guide rail frames, and the bottoms of the four guide rail frames are fixedly connected to the inner side of the lower surface of the inner top ring;

[0034] The linear guide rails are symmetrically distributed on both sides of the top of the guide rail frame with respect to the central axis of the guide rail frame;

[0035] A linear slider is slidably mounted on the periphery of the linear guide rail;

[0036] A loading plate, fixedly mounted on the top of the linear slide;

[0037] The plug rod is fixedly installed on the top of the loading plate, and the plug rod is plugged into the inside of the plug hole located at the top of the inner top ring. There are four plug rods, and the four plug rods are distributed in a "cross shape".

[0038] As a preferred solution of the present invention, the adjustment unit further includes:

[0039] The racks are fixedly mounted on the side of the insertion rod. There are four racks in number. The four racks are equally divided into two layers, upper and lower, and are vertically cross-distributed. The two racks in the upper layer and the two racks in the lower layer are parallel and staggered.

[0040] A gear, located between the plurality of racks, the gear being meshed with the four racks;

[0041] The servo motor is fixedly mounted on the top of a horizontal plate located at the lower layer. The output shaft of the servo motor passes through the horizontal plate and is fixedly connected to the inner wall of the gear.

[0042] As a preferred solution of the present invention, the locking portion includes:

[0043] The lock head is slidably mounted on the side wall of the telescopic sleeve along the radial direction of the telescopic sleeve, penetrates the side wall of the telescopic sleeve, and extends to the inside and outside of the telescopic sleeve. The lock head is plugged into the inside of the socket located at the top of the outer top ring;

[0044] The slide rod is fixedly installed inside the lock head along the radial direction of the telescopic sleeve, penetrates the side wall of the telescopic sleeve, and extends to the inside and outside of the telescopic sleeve;

[0045] The return spring is located on the periphery of the slide rod, and the return spring is fixedly installed between the inner wall of the telescopic sleeve and the inner wall of the lock head on one side close to the insertion rod.

[0046] As a preferred solution of the present invention, the locking portion further includes:

[0047] The metal baffle is fixedly mounted on the top of the guide block located at the top of the outer top ring, and a side surface of the metal baffle close to the inner wall of the telescopic sleeve is flush with a side surface of the guide block close to the inner wall of the telescopic sleeve.

[0048] As a preferred solution of the present invention, it also includes:

[0049] The welding robot arm is fixedly arranged on the side of the base and is used for welding and assembling the rim and the spoke.

[0050] Compared with the prior art, the present invention has the following beneficial effects:

[0051] 1. In the present invention, the wheel rim is positioned by the wheel rim positioning part, and the outer top ring and the bottom of the inner top ring of the spoke plate positioning part are pressed against the upper surface of the spoke plate. Since the outer top ring is a complete circular arrangement, the top of the spoke plate can be completely in contact with the bottom of the outer top ring, so that the spoke plate and the wheel rim can be tightly positioned. Compared with the existing means, the technical problem that the weld is too large due to the lack of positioning at a local position is solved, and the quality of wheel welding is improved.

[0052] 2. In the present invention, the servo motor of the adjustment part drives the gear to rotate, thereby pushing the four racks to move in the direction away from the center of the telescopic sleeve, so that the movement of the socket drives the insertion rod to move together, and the insertion rod is connected to the linear guide rail through the connection between the loading plate and the linear slider, which can enhance the stability of the movement of the insertion rod. In the process of the four insertion rods moving away from the center of the telescopic sleeve with the four racks, the four insertion rods are inserted into the sockets at corresponding positions. When the insertion rod is inserted into the top of an outer top ring that matches the specifications of the wheel hub to be welded, the device can be adaptively adjusted according to the positioning range of the wheel hubs of different specifications, and has strong flexibility.

[0053] 3. In the present invention, the lock head is pushed in a direction away from the center of the telescopic sleeve by moving the plug rod. The movement of the lock head drives the sliding rod to move together, causing the reset spring to be compressed and stored, providing reset potential energy for the lock head and the sliding rod, etc., and the plug rod is pushed downward and further drives the socket connected thereto to move downward. The socket moves downward and pushes the outer top ring and the inner top ring at its bottom downward through the connection action of the deduction block. The downward movement of the above-mentioned deduction block also drives the metal baffle to move downward and block the inner side of the remaining socket not plugged by the plug rod, thereby blocking the reset action of the reset spring on the lock head and ensuring that the lock head is still plugged into the remaining socket not plugged by the plug rod, thereby limiting the upper and lower positions of the deduction block of this part, that is, positioning the outer top ring at the bottom of the deduction block of this part up and down, so as to prevent the outer top ring that is not needed from moving downward under the action of gravity and interfering with the normal welding of the hub. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 It is a structural schematic diagram of the present invention;

[0055] Figure 2 It is a schematic diagram of the planar structure of the present invention;

[0056] Figure 3 It is a structural schematic diagram of the base and the rim positioning part in the present invention;

[0057] Figure 4 It is a detailed structural schematic diagram of the wheel rim positioning part in the present invention;

[0058] Figure 5 It is a schematic diagram of the side section structure of the telescopic sleeve in the present invention;

[0059] Figure 6 It is a schematic diagram of the structure of the spoke plate positioning portion from a top perspective in the present invention;

[0060] Figure 7 It is a schematic diagram of the structure of the inner top ring and the connecting column in the present invention;

[0061] Figure 8 It is a schematic diagram of the internal structure of the inner top ring in the present invention;

[0062] Fig. 9 It is a structural schematic diagram of the adjustment part in the present invention;

[0063] Fig.10 For the present invention Fig. 9 A schematic diagram of the enlarged structure of part A;

[0064] Fig.11 It is a schematic diagram of the side cross-section structure of the outer top ring and the inner top ring in the present invention;

[0065] Fig.12 For the present invention Fig.11 Schematic diagram of the enlarged structure of part B.

[0066] In the figure: 100, base; 200, rim positioning part; 201, servo turntable; 202, support plate; 203, cylinder fixing seat; 204, servo cylinder; 205, chuck; 300, lifting part; 301, guide rod; 302, rodless cylinder; 303, lifting plate; 400, spoke plate positioning part; 401, plane bearing; 402, telescopic sleeve; 4002, through hole; 403, outer top ring; 404, inner top ring; 405, guide block; 406, outer top ring; 407, inner top ring; 408, guide block; 409, outer top ring; 410, inner top ring; 411, inner top ring; 412, outer top ring; 413, outer top ring; 414, inner top ring; 415, guide block; 416, outer top ring; 417, inner top ring; 418, inner top ring; 419, inner top ring; 420, outer top ring; 421, inner top ring; 422, inner top ring; 423, outer top ring; 424, inner top ring; 425, outer top ring; 426, inner top ring; 427, outer top ring; 428, inner top ring; 430, inner top ring; 431, outer top ring; 432, inner top ring; 433, outer top ring; 434, inner top ring; 435, inner top ring; 436, outer top ring; 437, outer top ring; 438, inner top ring; 439, inner top ring; 440, inner top ring; 441, inner top ring; 442, inner top ring; 443, outer top ring; 444, inner top ring; 445, inner top ring 06, socket; 407, connecting column; 408, horizontal plate; 409, thrust cylinder; 500, adjustment part; 501, guide frame; 502, linear guide; 503, linear slider; 504, loading plate; 505, insertion rod; 506, rack; 507, gear; 508, servo motor; 600, locking part; 601, lock; 602, slide rod; 603, return spring; 604, metal baffle; 700, welding robot arm. DETAILED DESCRIPTION

[0067] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in 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 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.

[0068] See also Figures 1 to 12 The technical solution provided by the present invention specifically includes the following embodiments:

[0069] A wheel welding device with a rotatable workstation includes a base 100, a rim positioning part 200, a lifting part 300, a spoke positioning part 400, an adjusting part 500, a locking part 600 and a welding robot arm 700. The rim positioning part 200 is fixedly installed on the top of the base 100 and is used for positioning the wheel rim. The lifting part 300 is fixedly installed on the top of the base 100. The spoke positioning part 400 is movably installed on the top of the rim positioning part 200. The spoke positioning part 400 is used for positioning the spoke. The adjusting part 500 is located inside the spoke positioning part 400. The adjusting part 500 is used to drive the spoke positioning part 400. The locking part 600 is located on the periphery of the spoke positioning part 400. The spoke positioning part 400 is used for positioning the spoke up and down. The welding robot arm 700 is fixedly arranged on the side of the base 100 and is used for welding and assembling the rim and the spoke.

[0070] For further details, please refer to Figure 4 As shown:

[0071] The rim positioning part 200 includes a servo turntable 201, a support plate 202, a cylinder fixing seat 203, a servo cylinder 204 and a chuck 205. The servo turntable 201 is fixedly installed on the inner side of the upper surface of the base 100. The support plate 202 is located at the top of the base 100. The bottom of the support plate 202 is fixedly installed on the top of the output shaft of the servo turntable 201. The cylinder fixing seat 203 is fixedly installed on the top of the support plate 202. There are four cylinder fixing seats 203. The four cylinder fixing seats 203 are distributed in a "cross shape" on the top of the support plate 202. The servo cylinder 204 is fixedly installed inside the cylinder fixing seat 203. There are four servo cylinders 204. The chuck 205 is fixedly installed on the end of the output rod of the servo cylinder 204. There are four chucks 205.

[0072] Specifically, the wheel rim is placed on the top of the base 100 and on the periphery of the rim positioning part 200, and the output rods of the four servo cylinders 204 of the rim positioning part 200 are pushed outward synchronously, so that the four chucks 205 are pressed against the inner wall of the wheel rim, thereby automatically positioning the wheel rim to ensure the stability of the wheel rim during the welding process. During the welding process, the output shaft of the servo turntable 201 drives the support plate 202 to rotate, further driving the four cylinder fixing seats 203, the servo cylinder 204 and the chuck 205 to rotate together, and then carrying the wheel rim and the spoke plate positioned by the four chucks 205 to rotate together, and performing 360-degree rotation welding on them.

[0073] For further details, please refer to Figure 2 As shown:

[0074] The lifting part 300 includes a guide rod 301, a rodless cylinder 302 and a lifting plate 303. The guide rod 301 is fixedly installed on the top of the base 100. There are two guide rods 301. The two guide rods 301 are symmetrically distributed about the diagonal of the base 100. The rodless cylinder 302 is slidably installed on the outer wall of the guide rod 301. There are two rodless cylinders 302. The lifting plate 303 is fixedly installed on the bottom of the two rodless cylinders 302.

[0075] Specifically, the spoke plate is placed on the top of the rim so that the outer ring of the spoke plate fits with the inner wall of the rim, and the two rodless cylinders 302 move downward along the two guide rods 301. The two rodless cylinders 302 move downward through the connection of the lifting plate 303 to push the spoke plate positioning part 400 downward and against the upper surface of the spoke plate, so as to position the spoke plate on the rim and ensure the stability of the spoke plate during welding.

[0076] For further details, please refer to Figure 5 to Figure 11 As shown:

[0077] The spoke plate positioning portion 400 includes a plane bearing 401, a telescopic sleeve 402, an outer top ring 403, an inner top ring 404, a guide block 405, a socket 406, a connecting column 407, a horizontal plate 408 and a thrust cylinder 409. The plane bearing 401 is fixedly installed at the bottom of the lifting plate 303, the telescopic sleeve 402 is rotatably installed at the bottom of the plane bearing 401, the outer top ring 403 is slidably installed inside the telescopic sleeve 402, the number of the outer top rings 403 is multiple, and the multiple outer top rings 403 are distributed inside and outside in sequence, and the inner wall of the outer top ring 403 on the outside is slidably connected to the outer wall of an inner outer top ring 403, the inner top ring 404 is slidably installed inside the innermost outer top ring 403, the outer wall of the inner top ring 404 is slidably connected to the inner wall of the innermost outer top ring 403, the guide block 405 are distributed in a "cross shape" at the top of the outer top ring 403 and the top of the inner top ring 404, and the adjacent surfaces of the guide block 405 are penetrated with a plug hole 406, and the connecting column 407 is fixedly installed on the inner side of the lower surface of the inner top ring 404. There are four connecting columns 407, and the four connecting columns 407 are arranged at equal distances vertically and horizontally. The horizontal plate 408 is fixedly installed on the outer wall of the four connecting columns 407. There are two horizontal plates 408, and the two horizontal plates 408 have two layers of upper and lower layers. The thrust cylinder 409 is fixedly installed on the top of the lifting plate 303, and the top of the telescopic sleeve 402 is penetrated with a through hole 4002. The output rod of the thrust cylinder 409 movably penetrates the through hole 4002, and the bottom of the output rod of the thrust cylinder 409 is rotatably connected to the top of a horizontal plate 408 located on the upper layer;

[0078] The adjusting part 500 includes a guide rail frame 501, a linear guide rail 502, a linear slider 503, a loading plate 504, an insert rod 505, a rack 506, a gear 507 and a servo motor 508. The guide rail frames 501 are distributed in a "cross shape" inside the inner top ring 404. There are four guide rail frames 501. The bottoms of the four guide rail frames 501 are fixedly connected to the inner side of the lower surface of the inner top ring 404. The linear guide rails 502 are symmetrically distributed on both sides of the top of the guide rail frame 501 with the central axis of the guide rail frame 501. The linear slider 503 is slidably installed on the periphery of the linear guide rail 502. The loading plate 504 is fixedly installed on the top of the linear slider 503. The insert rod 505 is fixedly installed on the top of the loading plate 504. 05 is plugged into the inside of the socket 406 located at the top of the inner top ring 404, there are four plug rods 505, and the four plug rods 505 are distributed in a "cross shape", and the rack 506 is fixedly installed on the side of the plug rod 505. There are four racks 506, and the four racks 506 are equally divided into two layers, and are vertically cross-distributed. The two racks 506 on the upper layer and the two racks 506 on the lower layer are all parallel and staggered. The gear 507 is located between the multiple racks 506, and the gear 507 is meshed with the four racks 506. The servo motor 508 is fixedly installed on the top of a horizontal plate 408 located on the lower layer, and the output shaft of the servo motor 508 passes through the horizontal plate 408 and is fixedly connected to the inner wall of the gear 507.

[0079] Specifically, the pressing size of the spoke plate positioning part 400 is adjusted according to the specifications of the welded hub. Specifically, by starting the servo motor 508, the output shaft of the servo motor 508 drives the gear 507 to rotate, thereby pushing the four racks 506 to move away from the center of the telescopic sleeve 402, so that the insertion hole 406 moves and drives the insertion rod 505 to move together. The insertion rod 505 is connected to the linear guide rail 502 through the connection between the loading plate 504 and the linear slider 503, which can enhance the stability of the movement of the insertion rod 505. The four insertion rods 505 move with the four racks 506. In the process of moving away from the center of the telescopic sleeve 402, the insertion rod 505 is inserted into the socket 406 at the corresponding position. When the insertion rod 505 is inserted into the socket 406 at the top of an outer top ring 403 that matches the specifications of the wheel hub to be welded, the servo motor 508 is immediately turned off. Thereafter, the horizontal plate 408 is pushed downward by the output rod of the thrust cylinder 409. The horizontal plate 408 moves downward and moves the inner top ring 404, the guide frame 501, the insertion rod 505, etc. downward through the connection of the four connecting columns 407. The insertion rod 505 is pushed downward and further The plug-in socket 406 is driven to move downward, and the plug-in socket 406 moves downward, and the outer top ring 403 and the inner top ring 404 at the bottom thereof are pushed downward by the connecting action of the guide block 405. The inner top ring 404 pushed downward by the plug rod 505 together with the bottom of the outer top ring 403 extend out from the bottom of the telescopic sleeve 402, and then the two rodless cylinders 302 are started, and the two rodless cylinders 302 move downward along the two guide rods 301. The two rodless cylinders 302 move downward, and the spoke plate positioning part 400 is moved upward by the connecting action of the lifting plate 303. The wheel rim and the spoke are welded together by a welding robot arm 700 arranged on the side of the base 100. Since the outer top ring 403 is a complete circle, the top of the spoke can be completely in contact with the bottom of the outer top ring 403, so that the spoke and the wheel rim can be tightly positioned. Compared with the existing means, the technical problem of excessively large welds due to lack of positioning in local positions is solved, thereby improving the quality of wheel welding.

[0080] For further details, please refer to Figure 6 , Fig.12 As shown:

[0081] The locking portion 600 includes a lock head 601, a slide bar 602, a return spring 603, and a metal baffle 604. The lock head 601 is slidably mounted on the side wall of the telescopic sleeve 402 along the radial direction of the telescopic sleeve 402, penetrates the side wall of the telescopic sleeve 402, and extends to the inside and outside of the telescopic sleeve 402. The lock head 601 is plugged into the inside of the socket 406 located at the top of the outer top ring 403. The slide bar 602 is fixedly mounted inside the lock head 601 along the radial direction of the telescopic sleeve 402, and penetrates the side wall of the telescopic sleeve 402. The side wall of the sleeve 402 extends to the inside and outside of the telescopic sleeve 402, the reset spring 603 is located on the periphery of the slide rod 602, the reset spring 603 is fixedly installed between the inner wall of the telescopic sleeve 402 and the inner wall of the lock head 601 on one side close to the plug rod 505, the metal baffle 604 is fixedly installed on the top of the guide block 405 located on the top of the outer top ring 403, and the side of the metal baffle 604 close to the inner wall of the telescopic sleeve 402 is flush with the side of the guide block 405 close to the inner wall of the telescopic sleeve 402.

[0082] Specifically, the four plug rods 505 are inserted into the corresponding positions of the sockets 406 during the process of moving away from the center of the telescopic sleeve 402 along with the four racks 506, and the movement of the plug rods 505 pushes the lock head 601 in the direction away from the center of the telescopic sleeve 402. The movement of the lock head 601 drives the slide bar 602 to move together, so that the reset spring 603 is compressed and stored, providing reset potential energy for the lock head 601 and the slide bar 602, and the plug rod 505 is pushed downward, further driving the socket 406 connected thereto to move downward. The socket 406 moves downward, and the outer top ring 406 at the bottom thereof is connected thereto through the connection of the guide block 405. 03 and the inner top ring 404 are pushed downward, and the downward movement of the above-mentioned guide block 405 also drives the metal baffle plate 604 to move downward, blocking the inner side of the remaining socket 406 that is not plugged by the plug rod 505, thereby blocking the resetting effect of the reset spring 603 on the lock head 601, ensuring that the lock head 601 is still plugged into the remaining socket 406 that is not plugged by the plug rod 505, thereby limiting the upper and lower positions of the guide block 405 of this part, that is, positioning the outer top ring 403 at the bottom of the guide block 405 of this part up and down, so as to prevent the outer top ring 403 that is not needed from moving downward under the action of gravity and interfering with the normal welding of the hub.

[0083] In the present invention, a wheel welding device with a rotatable workstation is used to place a wheel rim on the top of a base 100 and on the periphery of a wheel rim positioning part 200. The output rods of four servo cylinders 204 of the wheel rim positioning part 200 are pushed outward synchronously to push four chucks 205 outward so that the four chucks 205 are pressed against the inner wall of the wheel rim, thereby automatically positioning the wheel rim.

[0084] After the wheel rim is positioned, the spoke is placed on the top of the wheel rim so that the outer ring of the spoke fits the inner wall of the wheel rim. Here, the pressing size of the spoke positioning part 400 needs to be adjusted according to the specifications of the welded wheel hub. Specifically, by starting the servo motor 508, its output shaft drives the gear 507 to rotate, thereby pushing the four racks 506 to move away from the center of the telescopic sleeve 402, so that the insertion hole 406 moves and drives the insertion rod 505 to move together. The insertion rod 505 is connected to the linear guide rail 502 through the connection between the loading plate 504 and the linear slider 503, which can strengthen the movement of the insertion rod 505. The stability of the movement is ensured. During the process of the four plug rods 505 moving away from the center of the telescopic sleeve 402 along with the four racks 506, the four plug rods 505 are inserted into the corresponding positions of the plug holes 406. The movement of the plug rods 505 pushes the lock head 601 away from the center of the telescopic sleeve 402. The movement of the lock head 601 drives the slide bar 602 to move together, causing the reset spring 603 to be compressed and accumulate force, providing reset potential energy for the lock head 601 and the slide bar 602. When the plug rod 505 is inserted into the plug hole 406 at the top of an outer top ring 403 that matches the specifications of the wheel hub to be welded, the servo motor 508 is immediately turned off.

[0085] Afterwards, the output rod of the thrust cylinder 409 pushes the horizontal plate 408 downward, and the horizontal plate 408 moves downward, and through the connection of the four connecting columns 407, the inner top ring 404, the guide rail frame 501, the insertion rod 505, etc. move downward, and the insertion rod 505 is pushed downward and further drives the socket 406 connected thereto to move downward, and the socket 406 moves downward and pushes the outer top ring 403 and the inner top ring 404 at the bottom thereof downward through the connection of the derivation block 405, and the downward movement of the above-mentioned derivation block 405 also drives the metal stopper The plate 604 moves downward and blocks the inner side of the remaining insertion hole 406 that is not inserted by the insertion rod 505, thereby blocking the reset spring 603 from restoring the lock head 601, ensuring that the lock head 601 is still inserted in the remaining insertion hole 406 that is not inserted by the insertion rod 505, thereby limiting the upper and lower positions of the derivation block 405 of this part, that is, positioning the outer top ring 403 at the bottom of the derivation block 405 of this part up and down, and the inner top ring 404 pushed downward by the insertion rod 505 together with the bottom of the outer top ring 403 protrudes from the bottom of the telescopic sleeve 402, Then the two rodless cylinders 302 are started, and the two rodless cylinders 302 move downward along the two guide rods 301. The two rodless cylinders 302 move downward and push the spoke plate positioning part 400 downward through the connection effect of the lifting plate 303, so that the outer top ring 403 extending from the bottom of the telescopic sleeve 402 and the bottom of the inner top ring 404 are against the upper surface of the spoke plate. Subsequently, the wheel rim and the spoke plate are welded together by the welding robot arm 700 provided on the side of the base 100. During the welding process, the support plate 202 is driven to rotate by the output shaft of the servo turntable 201. The outer top ring 403 is a complete circle, so that the top of the spoke can be completely in contact with the bottom of the outer top ring 403, so that the spoke and the wheel rim can be tightly positioned. Compared with the existing means, the technical problem of excessive weld due to lack of positioning in a local position is solved, thereby improving the quality of wheel welding.

[0086] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A wheel welding device with a rotatable workstation, characterized in that: include: Base (100); A wheel rim positioning portion (200) is fixedly mounted on the top of the base (100) and is used for positioning the wheel rim; A lifting part (300) is fixedly mounted on the top of the base (100); A spoke plate positioning portion (400) is movably mounted on the top of the rim positioning portion (200) and is used for positioning the spoke plate; An adjusting portion (500) is located inside the spoke plate positioning portion (400), and the adjusting portion (500) is used to drive the spoke plate positioning portion (400); The locking portion (600) is located at the periphery of the spoke plate positioning portion (400), and the spoke plate positioning portion (400) is used for vertical positioning of the spoke plate positioning portion (400).

2. The wheel welding equipment with rotatable workstations according to claim 1, characterized in that: The rim positioning portion (200) comprises: A servo turntable (201) is fixedly mounted on the inner side of the upper surface of the base (100); A support plate (202) is located on the top of the base (100), and the bottom of the support plate (202) is fixedly mounted on the top of the output shaft of the servo turntable (201); A cylinder fixing seat (203) is fixedly mounted on the top of the support plate (202), wherein the number of the cylinder fixing seats (203) is four, and the four cylinder fixing seats (203) are distributed in a "cross" shape on the top of the support plate (202); A servo cylinder (204) is fixedly mounted inside the cylinder fixing seat (203), and the number of the servo cylinders (204) is four; The chuck (205) is fixedly mounted on the end of the output rod of the servo cylinder (204), and the number of the chucks (205) is four.

3. The wheel welding equipment with rotatable workstations according to claim 2, characterized in that: The lifting part (300) comprises: A guide rod (301) is fixedly mounted on the top of the base (100), wherein the number of the guide rods (301) is two, and the two guide rods (301) are symmetrically distributed about the diagonal line of the base (100); A rodless cylinder (302) is slidably mounted on the outer wall of the guide rod (301), and the number of the rodless cylinders (302) is two; The lifting plate (303) is fixedly mounted on the bottom of the two rodless cylinders (302).

4. The wheel welding equipment with rotatable workstations according to claim 3, characterized in that: The spoke plate positioning portion (400) comprises: A plane bearing (401) is fixedly mounted on the bottom of the lifting plate (303); The telescopic sleeve (402) is rotatably mounted on the bottom of the plane bearing (401); An outer top ring (403) is slidably mounted inside the telescopic sleeve (402), wherein the outer top rings (403) are multiple in number, and the multiple outer top rings (403) are sequentially distributed inside and outside, and the inner wall of the outer top ring (403) on the outer side is slidably connected to the outer wall of one of the outer top rings (403) on the inner side; The inner top ring (404) is slidably mounted inside the innermost outer top ring (403), and the outer wall of the inner top ring (404) is slidably connected to the inner wall of the innermost outer top ring (403).

5. The wheel welding equipment with rotatable workstations according to claim 4, characterized in that: The spoke plate positioning portion (400) further comprises: The guide blocks (405) are distributed in a "cross" shape at the top of the outer top ring (403) and the top of the inner top ring (404), and the adjacent surfaces of the guide blocks (405) are penetrated by insertion holes (406); A connecting column (407) is fixedly mounted on the inner side of the lower surface of the inner top ring (404), wherein the number of the inner top rings (404) is four, and the four inner top rings (404) are arranged at equal distances in the vertical and horizontal directions; A horizontal plate (408) is fixedly mounted on the outer wall of the four connecting columns (407), wherein the number of the horizontal plates (408) is two, and the two horizontal plates (408) are arranged in two layers, upper and lower; The thrust cylinder (409) is fixedly mounted on the top of the lifting plate (303); a through hole (4002) is formed through the top of the telescopic sleeve (402); an output rod of the thrust cylinder (409) movably passes through the through hole (4002); and the bottom of the output rod of the thrust cylinder (409) is rotatably connected to the top of a horizontal plate (408) located on the upper layer.

6. The wheel welding equipment with rotatable workstations according to claim 5, characterized in that: The adjustment unit (500) comprises: The guide rail frames (501) are distributed in a "cross" shape inside the inner top ring (404), and there are four guide rail frames (501). The bottoms of the four guide rail frames (501) are fixedly connected to the inner side of the lower surface of the inner top ring (404); The linear guide rails (502) are symmetrically distributed on both sides of the top of the guide rail frame (501) with respect to the central axis of the guide rail frame (501); A linear slider (503) is slidably mounted on the periphery of the linear guide rail (502); A loading plate (504) is fixedly mounted on the top of the linear slider (503); The insertion rod (505) is fixedly mounted on the top of the loading plate (504), and the insertion rod (505) is inserted into the inside of the insertion hole (406) located at the top of the inner top ring (404). There are four insertion rods (505), and the four insertion rods (505) are distributed in a "cross shape".

7. The wheel welding equipment with rotatable workstations according to claim 6, characterized in that: The adjustment unit (500) further includes: The rack (506) is fixedly mounted on the side of the insertion rod (505). There are four racks (506) in number. The four racks (506) are equally divided into two layers, upper and lower, and are vertically cross-distributed. The two racks (506) in the upper layer and the two racks (506) in the lower layer are parallel and staggered. A gear (507) is located between the plurality of racks (506), wherein the gear (507) is meshed with the four racks (506); The servo motor (508) is fixedly mounted on the top of a horizontal plate (408) located at the lower layer. The output shaft of the servo motor (508) passes through the horizontal plate (408) and is fixedly connected to the inner wall of the gear (507).

8. The wheel welding equipment with rotatable workstations according to claim 7, characterized in that: The locking portion (600) comprises: The lock head (601) is slidably mounted on the side wall of the telescopic sleeve (402) along the radial direction of the telescopic sleeve (402), penetrates the side wall of the telescopic sleeve (402), and extends to the inside and outside of the telescopic sleeve (402), and the lock head (601) is inserted into the inside of the socket (406) located at the top of the outer top ring (403); The slide bar (602) is fixedly mounted inside the lock head (601) along the radial direction of the telescopic sleeve (402), penetrates the side wall of the telescopic sleeve (402), and extends to the inside and outside of the telescopic sleeve (402); The return spring (603) is located on the periphery of the slide rod (602), and the return spring (603) is fixedly installed between the inner wall of the telescopic sleeve (402) and the inner wall of one side of the lock head (601) close to the insertion rod (505).

9. The wheel welding equipment with rotatable workstations according to claim 8, characterized in that: The locking portion (600) further comprises: The metal baffle (604) is fixedly mounted on the top of the guide block (405) located on the top of the outer top ring (403), and a side surface of the metal baffle (604) close to the inner wall of the telescopic sleeve (402) is flush with a side surface of the guide block (405) close to the inner wall of the telescopic sleeve (402).

10. The wheel welding equipment with rotatable workstations according to claim 9, characterized in that: Also includes: The welding robot arm (700) is fixedly arranged on the side of the base (100) and is used for welding and assembling the rim and the spoke plate.

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