A kind of automobile steering wheel rim processing is grabbed with device

Abstract

The application provides a kind of automobile steering wheel rim processing grabbing device, belongs to the field of grabbing equipment, the automobile steering wheel rim processing grabbing device includes: moving frame and grabbing polishing assembly, the first linear slide is arranged on the upper portion of the moving frame, the first linear slide is provided with the first bidirectional slide at the moving end, the grabbing polishing assembly includes first lifting frame, second lifting frame, first gripper, rotary clamping plate, drive roller, second linear slide, rotary lifting frame, rotating shaft and polishing head, the polishing head is installed at the bottom of the rotating shaft. The redundant steps of "grabbing the rim - transferring the rim - grabbing again and sending to the polishing device" in the traditional process are eliminated, the transfer and polishing operations are completed simultaneously in a single transfer process, the processing cycle is greatly shortened, the equipment investment and space occupation are reduced, and the overall production efficiency of the automobile steering wheel rim is significantly improved.

Description

TECHNICAL FIELD

[0001] The application relates to the field of grabbing devices, in particular to a grabbing device for processing a steering wheel steel ring of an automobile. BACKGROUND

[0002] In the processing flow of the steering wheel steel ring of the automobile, after the steel material is processed into a ring shape, the formed steel ring needs to be transferred by means of a grabbing device. Usually, the grabbing device first grabs and places the steel ring on the upper part of a conveyor or a transfer trolley, and then the steel ring needs to be grabbed again by another grabbing device from the conveyor or the transfer trolley and moved to a polishing device for loading and polishing. Such an operation mode needs to go through multiple procedures of "grabbing the steel ring - transferring the steel ring - grabbing the steel ring again and sending it to the polishing device", which not only increases the steps of the overall processing, but also reduces the production efficiency to some extent. SUMMARY

[0003] The application aims to solve at least one of the technical problems existing in the prior art. To this end, the application provides a grabbing device for processing a steering wheel steel ring of an automobile, which can realize integrated design of grabbing, moving and polishing, eliminates the redundant steps of grabbing the steel ring - transferring the steel ring - grabbing again and sending it to the polishing device in the traditional process, synchronously completes the transfer and polishing operations in a single moving process, greatly shortens the processing cycle, reduces the equipment investment and space occupation, and significantly improves the overall production efficiency of the steering wheel steel ring of the automobile.

[0004] According to the grabbing device for processing a steering wheel steel ring of an automobile provided by the application, the moving frame is provided with a first straight line sliding rail at the upper part, and a first bidirectional sliding rail is arranged at the moving end of the first straight line sliding rail. The grabbing and polishing assembly comprises a first lifting frame, a second lifting frame, a first grabbing hand, a rotating clamping plate, a driving roller, a second straight line sliding rail, a rotating lifting frame, a rotating shaft and a polishing head. The rotating shaft is provided with a nut at the bottom. The first lifting frame, the second lifting frame, the first grabbing hand and the rotating clamping plate are all arranged symmetrically. The driving roller is provided with two. The first lifting frame is fixedly connected with the sliding end of the first bidirectional sliding rail at the upper part. The second lifting frame is arranged at one side of the lifting end of the first lifting frame. The first grabbing hand is fixedly connected with the lifting end of the second lifting frame. The bottom of the rotating clamping plate is provided with an arc-shaped groove. The upper part of the rotating clamping plate is rotatably connected with the lifting end of the first lifting frame. The rotating end of the driving roller is located inside the arc-shaped groove. The driving roller is rotatably connected with the rotating clamping plate. The second straight line sliding rail is arranged at one side of the middle part of the first straight line sliding rail. The upper part of the rotating lifting frame is rotatably connected with the sliding end of the second straight line sliding rail. The rotating shaft is symmetrically provided with two. The rotating shaft is rotatably connected with the lifting end of the rotating lifting frame. The polishing head is installed at the bottom of the rotating shaft.

[0005] According to the automobile steering wheel steel ring processing grabbing device, the mobile frame and the grabbing and polishing assembly can effectively solve the problem of low efficiency caused by multiple grabbing and transferring processes in the traditional processing flow, and can bring significant benefits. The overall position is adjusted through the moving end of the mobile frame, and the position of the first lifting frame, the second lifting frame and the related grabbing and clamping parts can be flexibly adjusted through the cooperative sliding of the first linear guide rail and the first bidirectional guide rail, so that the precise grabbing and transferring of the formed steel ring are realized. During operation, the first gripper first grabs and lifts the steel ring, and then completes stable clamping through the cooperation of the rotating clamping plate and the driving roller, while the first gripper is slightly loosened and limited to ensure the stable position of the steel ring during the transferring process. The key advantage is that the polishing operation can be completed simultaneously during the grabbing and transferring process without additional transfer process. The second linear guide rail drives the rotating lifting frame to move, so that the symmetrical polishing heads are accurately positioned outside the steel ring. After the lifting end of the rotating lifting frame is lowered, the rotating end of the rotating clamping plate is rotated to allow the polishing head to adhere to the steel ring. The driving roller drives the steel ring to rotate, and the rotation of the polishing head is realized to polish the steel ring in all directions. This integrated design of "grabbing-transferring-polishing" eliminates the redundant steps of "grabbing the steel ring-transferring the steel ring-grabbing and sending to the polishing device" in the traditional process, and simultaneously completes the transferring and polishing operations during a single transferring process, greatly shortens the processing cycle, reduces the equipment investment and space occupation, and significantly improves the overall production efficiency of the automobile steering wheel steel ring.

[0006] In addition, the automobile steering wheel steel ring processing grabbing device according to the embodiment of the application also has the following additional technical features:

[0007] According to the application, the mobile frame bottom is provided with a third linear guide rail, the third linear guide rail includes a first motor, a first screw and a first sliding block, the first motor, the first screw and the first sliding block are symmetrically arranged, the output end of the first motor is fixedly connected with one end of the first screw, the first screw is threadedly connected with the first sliding block, and the first sliding block is fixedly connected with the mobile frame bottom.

[0008] According to the application, the first linear guide rail includes a second motor, a second screw and a second sliding block, the second motor is fixedly connected with one side of the mobile frame, the output end of the second motor is fixedly connected with one end of the second screw, the second screw is rotatably connected with the mobile frame, the second sliding block is slidably connected with the mobile frame, and the second screw is threadedly connected with the second sliding block. The first bidirectional guide rail is arranged on one side of the second sliding block.

[0009] According to the application, the first bidirectional sliding rail comprises a third motor, a first bidirectional threaded rod and third sliding blocks, the third sliding blocks are symmetrically arranged, the third motor is fixedly connected with one side of the second sliding block, the output end of the third motor is fixedly connected with one end of the first bidirectional threaded rod, the first bidirectional threaded rod is in threaded connection with the third sliding blocks, and the third sliding blocks are in sliding connection with the second sliding block.

[0010] According to the application, the first lifting frame comprises a first frame body, a second frame body and a first telescopic piece, the upper portion of the first frame body is in sliding connection with the inner portion of the second frame body, the output end of the first telescopic piece is fixedly connected with the first frame body, and the upper portion of the second frame body and the end portion of the first telescopic piece are both fixedly connected with the bottom portion of the third sliding block.

[0011] According to the application, the second lifting frame comprises a third frame body, a fourth frame body and a second telescopic piece, the upper portion of the third frame body is in sliding connection with the inner portion of the fourth frame body, the upper portion of the fourth frame body and the end portion of the second telescopic piece are both fixedly connected with one side of the first frame body, the output end of the second telescopic piece is fixedly connected with the third frame body, and the first gripper is fixedly connected with the third frame body.

[0012] According to the application, the rotating clamping plate comprises a first plate body, a third telescopic piece, a second plate body and a fourth telescopic piece, the first plate body, the third telescopic piece, the second plate body and the fourth telescopic piece are all symmetrically arranged, one side of the first plate body is in rotary connection with one side of the first frame body, one side of the second plate body is in rotary connection with the other side of the first plate body, one side of the third telescopic piece is in rotary connection with the first frame body, the output end of the third telescopic piece is in rotary connection with one side of the first plate body, one side of the fourth telescopic piece is in rotary connection with one side of the first plate body, the output end of the fourth telescopic piece is in rotary connection with one side of the second plate body, and the arc-shaped grooves are respectively arranged at the bottom portions of the first plate body and the second plate body and are internally provided with rotating balls.

[0013] According to the application, the driving roller comprises a fourth motor and a grooved roller, the fourth motor is fixedly connected with the upper portion of the second plate body, the output end of the fourth motor is fixedly connected with the grooved roller, and the grooved roller is in rotary connection with the second plate body.

[0014] According to the application, the rotating lifting frame comprises a fifth motor, a rotating block, a fifth frame body, a sixth frame body and a fifth telescopic piece, the fifth motor is fixedly connected with the sliding end of the second linear slide rail, the rotating block is rotatably connected with the bottom of the sliding end of the second linear slide rail, the output end of the fifth motor is in transmission connection with the rotating block, the upper portion of the sixth frame body and the end portion of the fifth telescopic piece are fixedly connected with the rotating block, the upper portion of the fifth frame body is in sliding connection with the interior of the sixth frame body, and the output end of the fifth telescopic piece is fixedly connected with the fifth frame body.

[0015] According to the application, the rotating shaft comprises a sixth motor and a shaft rod, the nut is arranged at the bottom of the shaft rod, the sixth motor is fixedly connected with the fifth frame body, the output end of the sixth motor is in transmission connection with the shaft rod, the shaft rod is arranged in symmetry, and the polishing head is arranged at the bottom of the shaft rod.

[0016] In some ODM factories, their business often only involves a certain process in the production process of automobile steering wheels, for example, only responsible for the forming processing of the steel ring, without involving subsequent polishing processing, in this case, the polishing structure loses its value, and needs to be disassembled, once the polishing structure is not convenient to disassemble, it will become an additional burden for the operation of the grabbing device, affecting the overall operation efficiency and smoothness.

[0017] According to the application, the disassembling and assembling assembly further comprises a base frame, a rotating frame, a third lifting frame, a second grabbing hand, a bidirectional locking piece and an electrical connecting piece, the second linear slide rail comprises a seventh motor, a seventh lead screw, a seventh frame body and a seventh sliding block, the sliding end of the first linear slide rail is provided with a slot, one side of the seventh frame body is provided with an insertion block, the insertion block is inserted into the slot, the bidirectional locking piece is arranged on the upper portion of the sliding end of the first linear slide rail, the locking end of the bidirectional locking piece is inserted into the seventh frame body, the grabbing end of the second grabbing hand is grabbed on the upper portion of the seventh frame body, the rotating frame is rotatably connected with the base frame, the upper portion of the rotating frame is fixedly connected with the upper portion of the third lifting frame, the lifting end of the third lifting frame is fixedly connected with the second grabbing hand, and one side of the electrical connecting piece is arranged on the upper portion of the seventh frame body, and the other side of the electrical connecting piece is arranged on the upper portion of the sliding end of the first linear slide rail.

[0018] The newly added disassembling and assembling assembly brings excellent flexibility and adaptability to the equipment, and perfectly solves the disassembly problem of the polishing structure when the ODM factory only involves part of the process;

[0019] When the factory is only responsible for the forming process of the steel ring without polishing, the polishing structure can be quickly disassembled through the disassembly and assembly. In the specific operation, after the moving frame drives the equipment to approach the base frame, the rotating frame on the base frame rotates to cooperate with the third lifting frame to lift, so that the second gripper is accurately positioned with the seventh frame body of the second linear slide rail. After the second gripper grabs the upper part of the seventh frame body, the bidirectional locking piece releases the locking of the seventh frame body, the third lifting frame lifts to drive the seventh frame body to separate from the sliding end of the first linear slide rail to make the insertion block come out of the insertion slot, the electrical connection piece is synchronously disconnected, the polishing structure including the second linear slide rail, the rotating lifting frame and the polishing head is completely separated from the grabbing frame. This design makes the disassembly and assembly process of the polishing structure efficient and convenient, and can be completed without complex operation. When the polishing process is not needed, the polishing structure can be quickly disassembled to avoid becoming an additional burden of the grabbing device, ensure the lightweight and smoothness of the grabbing operation, and further improve the operation efficiency of the equipment in diversified production scenes to meet the process requirements of factories of different manufacturers.

[0020] According to the present application, the rotating frame comprises an eighth motor and an eighth frame body, the eighth motor is fixedly connected with the base frame, the output end of the eighth motor is in transmission connection with the eighth frame body, and the eighth frame body is in rotation connection with the base frame.

[0021] According to the present application, the third lifting frame comprises a ninth frame body, a tenth frame body and an eighth telescopic piece, the tenth frame body is fixedly connected with the eighth frame body, the eighth telescopic piece is fixedly connected with the eighth frame body, the ninth frame body is in internal sliding connection with the tenth frame body, the output end of the eighth telescopic piece is fixedly connected with the ninth frame body, and the second gripper is fixedly connected with the ninth frame body.

[0022] According to the present application, the grabbing end of the second gripper is provided with a grabbing block, the upper part of the seventh frame body is provided with a limiting frame body, and the grabbing block is inserted into the limiting frame body.

[0023] According to the present application, the bidirectional locking piece comprises a second bidirectional slide rail and a plug rod, the plug rods are symmetrically arranged, one side of the plug rod is fixedly connected with the sliding end of the second bidirectional slide rail, the other side of the plug rod is in sliding connection with the sliding end of the first linear slide rail, the second bidirectional slide rail is arranged on the upper part of the sliding end of the first linear slide rail, and one side of the plug rod is inserted into the seventh frame body.

[0024] According to the application, the electrical connector comprises a sixth telescopic piece, a sixth sliding block, a seventh telescopic piece, an eleventh frame body, a twelfth frame body, a cross plate, a plug, a connecting sleeve and a cross frame, one side of the cross frame is provided with a power distribution box, the end of the sixth telescopic piece is fixedly connected with the sliding end of the first linear sliding rail, the output end of the sixth telescopic piece is fixedly connected with one side of the sixth sliding block, the sixth sliding block is in sliding connection with the sliding end of the first linear sliding rail, the bottom of the twelfth frame body and the end of the seventh telescopic piece are both fixedly connected with the upper part of the sixth sliding block, the bottom of the eleventh frame body is in sliding connection with the inside of the twelfth frame body, the output end of the seventh telescopic piece is fixedly connected with the cross plate, the cross plate is fixedly connected with the eleventh frame body, one side of the cross plate is inserted into the inside of the plug, the plug is fixedly connected with one side of the cross frame, the other side of the cross frame is fixedly connected with the seventh frame body, the plug is in electrical connection with the power distribution box, the plug is inserted into the inside of the connecting sleeve, the connecting sleeve is fixedly connected with the upper part of the sliding end of the first linear sliding rail, the plug is in electrical connection with the connecting sleeve after being inserted into the inside of the connecting sleeve.

[0025] Different types or models of cars have different sizes of steering wheels, which requires different specifications of polishing structures to adapt to them, so the polishing device needs to be replaced. However, the common polishing device replacement equipment has low degree of mechanization, which not only prolongs the time required for replacement, but also reduces the efficiency of replacement work.

[0026] According to the application, the replacement assembly further comprises a plate frame, a third bidirectional sliding rail, a twisting piece, a fifth linear sliding rail, a storage tray and a nut twisting piece, the plate frame is fixedly connected with the upper part of one side of the base frame, the third bidirectional sliding rail is arranged in the middle part of the plate frame, the fifth linear sliding rail is arranged on the upper part of the plate frame, the storage tray is fixedly connected on the upper part of the fifth linear sliding rail, the storage tray is symmetrically and spaced apart to form a storage groove, the polishing head is placed in the inside of the storage groove, the nut twisting piece is arranged at the bottom of the storage groove and is in rotary connection with the storage tray, the twisting piece is symmetrically arranged on the upper part of the sliding end of the third bidirectional sliding rail, and the twisting end of the twisting piece is inserted into the inside of the driving end of the nut twisting piece.

[0027] The newly added replacement assembly greatly improves the mechanization degree of the polishing head replacement work, effectively solving the problems of time-consuming and low efficiency of polishing device replacement when polishing the steering wheel steel ring of different specifications of cars;

[0028] When different specifications of polishing heads need to be replaced, the two polishing heads are rotated to positions that are suitable for the angle of the storage slots on the storage disc before the polishing structure is separated from the grabbing structure. After the separation, the rotating frame drives the third lifting frame and the second gripper to above the storage disc, the fifth linear slide rail sliding end drives the storage disc to move, and the empty storage slot is moved to directly below the rotating shaft. Then, the third lifting frame is lowered, and the polishing head at the bottom of the rotating shaft is inserted into the storage slot. At this time, the third bidirectional slide rail sliding end drives the screwing member to move, the screwing end of the screwing member is inserted into the driving end of the nut screwing member, and the nut at the bottom of the rotating shaft is accurately embedded in the polygonal slot of the nut screwing member. Through mechanical operation, the nut is quickly disassembled, then the third lifting frame is lifted to separate the rotating shaft from the old polishing head, the fifth linear slide rail moves the storage slot with the new specification polishing head to below the rotating shaft, the third lifting frame is lowered again to insert the rotating shaft into the new polishing head, and the screwing member is actuated again to fasten the nut to the bottom of the rotating shaft, thereby completing the installation of the new polishing head.

[0029] The entire replacement process is fully mechanized, without the need for manual intervention in complex steps. Through the cooperation of the third bidirectional slide rail, the fifth linear slide rail, the screwing member and the nut screwing member, the polishing head is quickly disassembled and installed, which not only greatly shortens the replacement time and avoids the efficiency bottleneck caused by the low degree of mechanization in the traditional replacement method, but also significantly improves the accuracy and stability of the replacement operation of different specifications of polishing heads, effectively ensures the continuity of the polishing process in the machining of the steering wheel steel ring of the automobile, and further enhances the adaptability of the equipment to different types of products.

[0030] According to the present application, the screwing member comprises a tenth motor and a screwing head, the tenth motor is fixedly connected with the third bidirectional slide rail sliding end, and the output end of the tenth motor is fixedly connected with the screwing head.

[0031] According to the present application, the nut screwing member comprises a gear plate and a transmission shaft, one side of the transmission shaft is provided with a bevel gear, the other side of the transmission shaft is provided with a polygonal sleeve, the bevel gear is in meshing connection with the gear plate, the gear plate and the transmission shaft are both in rotary connection with the storage disc, and the screwing head is inserted into the polygonal sleeve. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0033] Figure 1 is a structure schematic diagram of a first perspective view of a grabbing device for machining a steering wheel steel ring of an automobile provided by the embodiments of the present application.

[0034] Figure 2 Partial structure diagram of a mobile frame provided for an embodiment of the present application;

[0035] Figure 3 Partial structure diagram of a first straight slide rail provided for an embodiment of the present application;

[0036] Figure 4 Partial structure diagram of a first bidirectional slide rail provided for an embodiment of the present application;

[0037] Figure 5 Partial structure diagram of a first lifting frame and a second lifting frame provided for an embodiment of the present application;

[0038] Figure 6 Partial structure diagram of a rotary lifting frame provided for an embodiment of the present application;

[0039] Figure 7 Partial structure diagram of a rotary lifting frame provided for an embodiment of the present application;

[0040] Figure 8 Partial structure diagram of an electrical connector provided for an embodiment of the present application;

[0041] Figure 9 Partial structure diagram of a rotary frame provided for an embodiment of the present application;

[0042] Figure 10 Partial structure diagram of a replacement assembly provided for an embodiment of the present application;

[0043] Figure 11 Partial structure diagram of a nut tightening member provided for an embodiment of the present application.

[0044] In the figure: 100 - moving frame; 110 - first straight slide rail; 111 - second motor; 112 - second lead screw; 113 - second sliding block; 115 - slot; 120 - first bidirectional slide rail; 121 - third motor; 122 - first bidirectional threaded rod; 123 - third sliding block; 130 - third straight slide rail; 131 - first motor; 132 - first lead screw; 133 - first sliding block; 200 - grabbing and polishing assembly; 210 - first lifting frame; 211 - first frame body; 212 - second frame body; 213 - first telescopic piece; 220 - second lifting frame; 221 - third frame body; 222 - fourth frame body; 223 - second telescopic piece; 230 - first grabber; 240 - rotating clamping plate; 241 - first plate body; 242 - third telescopic piece; 243 - second plate body; 244 - fourth telescopic piece; 248 - arc-shaped slot; 250 - driving roller; 251 - fourth motor; 252 - groove roller; 260 - second straight slide rail; 261 - seventh motor; 262 - seventh lead screw; 263 - seventh frame body; 264 - seventh sliding block; 265 - plug block; 268 - limiting frame body; 270 - rotating lifting frame; 271 - fifth motor; 272 - rotating block; 273 - fifth frame body; 274 - sixth frame body; 275 - fifth telescopic piece; 280 - rotating shaft; 281 - nut; 282 - sixth motor; 283 - shaft rod; 290 - polishing head; 300 - disassembling assembly; 310 - base frame; 320 - rotating frame; 321 - eighth motor; 322 - eighth frame body; 330 - third lifting frame; 331 - ninth frame body; 332 - tenth frame body; 333 - eighth telescopic piece; 340 - second grabber; 341 - grabbing block; 350 - bidirectional locking piece; 351 - second bidirectional slide rail; 352 - plug rod; 360 - electrical connecting piece; 361 - sixth telescopic piece; 362 - sixth sliding block; 363 - seventh telescopic piece; 364 - eleventh frame body; 365 - twelfth frame body; 366 - cross plate; 367 - plug; 368 - connecting sleeve; 369 - cross frame; 3691 - power distribution box; 400 - replacing assembly; 410 - plate frame; 420 - third bidirectional slide rail; 430 - twisting piece; 431 - tenth motor; 432 - twisting head; 440 - fifth straight slide rail; 450 - placing disc; 451 - placing slot; 460 - screw nut piece; 461 - gear disc; 462 - transmission shaft; 463 - bevel gear; 465 - polygon sleeve. DETAILED DESCRIPTION

[0045] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0046] The following description, with reference to the accompanying drawings, describes a gripping device for processing automotive steering wheel steel rims according to an embodiment of this application.

[0047] like Figures 1-11 As shown, a gripping device for processing automotive steering wheel steel rims according to an embodiment of this application includes a movable frame 100 and a gripping and grinding assembly 200.

[0048] The movable frame 100 is equipped with a first linear slide rail 110 on its upper part, and a first bidirectional slide rail 120 is provided at the moving end of the first linear slide rail 110. The gripping and grinding assembly 200 includes a first lifting frame 210, a second lifting frame 220, a first gripper 230, a rotating clamping plate 240, a drive roller 250, a second linear slide rail 260, a rotating lifting frame 270, a rotating shaft 280, and a grinding head 290. A nut 281 is provided at the bottom of the rotating shaft 280. The first lifting frame 210, the second lifting frame 220, the first gripper 230, and the rotating clamping plate 240 are all symmetrically arranged. There are two drive rollers 250. The upper part of the first lifting frame 210 is fixedly connected to the sliding end of the first bidirectional slide rail 120. The second lifting frame 260, the second linear slide rail 270, the second linear slide rail 280, the second linear slide rail 290, the second linear slide rail 210, the second linear slide rail 260, the second linear slide rail 270, the second linear slide rail 280, the second linear slide rail 29 ... 20 is set on one side of the lifting end of the first lifting frame 210. The first gripper 230 is fixedly connected to the lifting end of the second lifting frame 220. The bottom of the rotating clamping plate 240 is provided with an arc-shaped groove 248. The upper part of the rotating clamping plate 240 is rotatably connected to the lifting end of the first lifting frame 210. The rotating end of the drive roller 250 is located inside the arc-shaped groove 248. The drive roller 250 is rotatably connected to the rotating clamping plate 240. The second linear slide rail 260 is set on one side of the middle of the first linear slide rail 110. The upper part of the rotating lifting frame 270 is rotatably connected to the sliding end of the second linear slide rail 260. Two rotating shafts 280 are symmetrically arranged. The rotating shafts 280 are rotatably connected to the lifting end of the rotating lifting frame 270. The grinding head 290 is installed at the bottom of the rotating shaft 280.

[0049] The working process of a gripping device for processing automotive steering wheel steel rims according to a specific embodiment of this application is described below with reference to the accompanying drawings.

[0050] Firstly, the mobile frame 100 drives the first screw rod 132 to rotate through the first motor 131 of the third linear slide rail 130, drives the first sliding block 133 to move, thereby adjusting the position of the overall device, the second motor 111 of the first linear slide rail 110 drives the second screw rod 112 to rotate, drives the second sliding block 113 to drive the first bidirectional slide rail 120 to move, the third motor 121 of the first bidirectional slide rail 120 drives the first bidirectional threaded rod 122 to rotate, drives the third sliding block 123 to drive the first lifting frame 210 to move, and the precision adjustment of the grabbing position is realized.

[0051] Secondly, in the grabbing stage, the first telescopic piece 213 of the first lifting frame 210 is telescopic, drives the second frame body 212 to ascend and descend, the second telescopic piece 223 of the second lifting frame 220 is telescopic, drives the fourth frame body 222 to ascend and descend, the first gripper 230 is grabbed to the steel ring, then the first lifting frame 210 is lifted, the third telescopic piece 242 and the fourth telescopic piece 244 of the rotating clamping plate 240 are actuated, the first plate body 241 and the second plate body 243 are rotated, the arc-shaped groove 248 is fitted to the steel ring, the fourth motor 251 of the driving roller 250 drives the concave roller 252 to rotate, the steel ring is clamped, at the same time, the first gripper 230 is slightly loosened and limited, and the stability of the steel ring is ensured.

[0052] Thirdly, in the polishing stage, the seventh motor 261 of the second linear slide rail 260 drives the seventh screw rod 262 to rotate, drives the seventh sliding block 264 to drive the rotating lifting frame 270 to move. The fifth motor 271 of the rotating lifting frame 270 drives the rotating block 272 to rotate, the fifth telescopic piece 275 is telescopic, drives the sixth frame body 274 to ascend and descend, and the polishing head 290 at the bottom of the rotating shaft 280 is aligned to the outer side of the steel ring. The sixth motor 282 drives the shaft rod 283 to rotate, drives the polishing head 290 to rotate; at the same time, the driving roller 250 drives the steel ring to rotate, and the all-around polishing of the steel ring is realized.

[0053] Therefore, the redundant steps of "grabbing the steel ring-transferring the steel ring-grabbing again and sending to the polishing device" in the traditional process are omitted, the transfer and polishing operations are simultaneously completed in a single transfer process, the processing cycle is greatly shortened, the equipment investment and space occupation are reduced, and the overall production efficiency of the automobile steering wheel steel ring is significantly improved.

[0054] In addition, the grabbing device for machining the automobile steering wheel steel ring according to the embodiment of the application also has the following additional technical features:

[0055] According to the application, Figure 2As shown, the mobile frame 100 is provided with a third linear slide rail 130 at the bottom, the third linear slide rail 130 comprises a first motor 131, a first screw rod 132 and a first sliding block 133, the first motor 131, the first screw rod 132 and the first sliding block 133 are symmetrically arranged, the output end of the first motor 131 is fixedly connected with one end of the first screw rod 132, the first screw rod 132 is threadedly connected with the first sliding block 133, and the first sliding block 133 is fixedly connected with the bottom of the mobile frame 100.

[0056] According to the present application, as shown in the drawings, Figure 3 The first linear slide rail 110 comprises a second motor 111, a second screw rod 112 and a second sliding block 113, the second motor 111 is fixedly connected with one side of the mobile frame 100, the output end of the second motor 111 is fixedly connected with one end of the second screw rod 112, the second screw rod 112 is rotatably connected with the mobile frame 100, the second sliding block 113 is slidably connected with the mobile frame 100, the second screw rod 112 is threadedly connected with the second sliding block 113, and the first bidirectional slide rail 120 is arranged at one side of the second sliding block 113.

[0057] According to the present application, as shown in the drawings, Figure 4 The first bidirectional slide rail 120 comprises a third motor 121, a first bidirectional threaded rod 122 and a third sliding block 123, the third sliding block 123 is symmetrically arranged, the third motor 121 is fixedly connected with one side of the second sliding block 113, the output end of the third motor 121 is fixedly connected with one end of the first bidirectional threaded rod 122, the first bidirectional threaded rod 122 is threadedly connected with the third sliding block 123, and the third sliding block 123 is slidably connected with the second sliding block 113.

[0058] According to the present application, as shown in the drawings, Figure 5 The first lifting frame 210 comprises a first frame body 211, a second frame body 212 and a first telescopic piece 213, the upper portion of the first frame body 211 is slidably connected with the inside of the second frame body 212, the output end of the first telescopic piece 213 is fixedly connected with the first frame body 211, and the upper portion of the second frame body 212 and the end portion of the first telescopic piece 213 are both fixedly connected with the bottom of the third sliding block 123.

[0059] According to the present application, as shown in the drawings, Figure 5 The second lifting frame 220 comprises a third frame body 221, a fourth frame body 222 and a second telescopic piece 223, the upper portion of the third frame body 221 is slidably connected with the inside of the fourth frame body 222, the upper portion of the fourth frame body 222 and the end portion of the second telescopic piece 223 are both fixedly connected with one side of the first frame body 211, the output end of the second telescopic piece 223 is fixedly connected with the third frame body 221, and the first gripper 230 is fixedly connected with the third frame body 221.

[0060] According to the present application, as shown in the drawings, Figure 5As shown, the rotating clamping plate 240 comprises a first plate body 241, a third telescopic piece 242, a second plate body 243 and a fourth telescopic piece 244, which are symmetrically arranged, one side of the first plate body 241 is rotatably connected with one side of the first frame body 211, one side of the second plate body 243 is rotatably connected with the other side of the first plate body 241, one side of the third telescopic piece 242 is rotatably connected with the first frame body 211, the output end of the third telescopic piece 242 is rotatably connected with one side of the first plate body 241, one side of the fourth telescopic piece 244 is rotatably connected with one side of the first plate body 241, and the output end of the fourth telescopic piece 244 is rotatably connected with one side of the second plate body 243, and the arc-shaped grooves 248 are respectively arranged at the bottom of the first plate body 241 and the second plate body 243, and a rotating ball is arranged in each arc-shaped groove 248.

[0061] According to the present application, as shown in the drawings, Figure 4 The driving roller 250 comprises a fourth motor 251 and a grooved roller 252, the fourth motor 251 is fixedly connected with the upper part of the second plate body 243, the output end of the fourth motor 251 is fixedly connected with the grooved roller 252, and the grooved roller 252 is rotatably connected with the second plate body 243.

[0062] According to the present application, as shown in the drawings, Figure 7 The rotating lifting frame 270 comprises a fifth motor 271, a rotating block 272, a fifth frame body 273, a sixth frame body 274 and a fifth telescopic piece 275, the fifth motor 271 is fixedly connected with the sliding end of the second linear slide rail 260, the rotating block 272 is rotatably connected with the bottom of the sliding end of the second linear slide rail 260, the output end of the fifth motor 271 is in transmission connection with the rotating block 272, the upper part of the sixth frame body 274 and the end part of the fifth telescopic piece 275 are fixedly connected with the rotating block 272, the upper part of the fifth frame body 273 is in sliding connection with the inside of the sixth frame body 274, and the output end of the fifth telescopic piece 275 is fixedly connected with the fifth frame body 273.

[0063] According to the present application, as shown in the drawings, Figure 7 The rotating shaft 280 comprises a sixth motor 282 and a shaft rod 283, a nut 281 is arranged at the bottom of the shaft rod 283, the sixth motor 282 is fixedly connected with the fifth frame body 273, the output end of the sixth motor 282 is in transmission connection with the shaft rod 283, the shaft rod 283 is symmetrically arranged, and the polishing head 290 is installed at the bottom of the shaft rod 283.

[0064] In some ODM factories, their business often only involves a certain process in the production process of automobile steering wheels, for example, only responsible for the forming processing of the steel ring, and does not involve the subsequent polishing process, in this case, the polishing structure loses its value, and needs to be disassembled, once the polishing structure is not convenient to disassemble, it will become an additional burden when the grabbing device is operated, affecting the overall operation efficiency and smoothness.

[0065] According to the present application, as Figure 3 and Figures 8-9 The disassembling assembly 300 includes a base frame 310, a rotating frame 320, a third lifting frame 330, a second gripper 340, a bidirectional locking piece 350, and an electrical connecting piece 360. The second linear slide rail 260 includes a seventh motor 261, a seventh lead screw 262, a seventh frame body 263, and a seventh sliding block 264. The sliding end of the first linear slide rail 110 is provided with a slot 115. One side of the seventh frame body 263 is provided with an insertion block 265, which is inserted into the slot 115. The bidirectional locking piece 350 is arranged on the upper part of the sliding end of the first linear slide rail 110. The locking end of the bidirectional locking piece 350 is inserted into the seventh frame body 263. The gripping end of the second gripper 340 is gripped on the upper part of the seventh frame body 263. The rotating frame 320 is rotationally connected with the base frame 310. The upper part of the rotating frame 320 is fixedly connected with the upper part of the third lifting frame 330. The lifting end of the third lifting frame 330 is fixedly connected with the second gripper 340. One side of the electrical connecting piece 360 is arranged on the upper part of the seventh frame body 263. The other side of the electrical connecting piece 360 is arranged on the upper part of the sliding end of the first linear slide rail 110.

[0066] When it is necessary to disassemble the polishing structure, the moving frame 100 drives the whole device to move through the sliding end of the third linear slide rail 130, so that the sliding end of the first linear slide rail 110 approaches the base frame 310. The rotating frame 320 on the base frame 310 rotates under the drive of the eighth motor 321, and the eighth telescopic piece 333 telescopes, driving the tenth frame body 332 to lift, so as to adjust the position of the second gripper 340. The gripping block 341 of the second gripper 340 is accurately positioned inside the limiting frame body 268 on the upper part of the seventh frame body 263 and is gripped and fixed.

[0067] Subsequently, the sliding end of the second bidirectional slide rail 351 drives the insertion rod 352 to move, so that the insertion rod 352 is pulled out from the inside of the seventh frame body 263, and the locking and limiting of the seventh frame body 263 is released. At the same time, the electrical connecting piece 360 starts to act, and the sixth telescopic piece 361 and the seventh telescopic piece 363 respectively drive the related components, so that the plug 367 arranged on the upper part of the seventh frame body 263 is separated from the connecting sleeve 368 on the upper part of the sliding end of the first linear slide rail 110.

[0068] Finally, the eighth telescopic part 333 continues to be telescoped and lifted, driving the seventh frame body 263 grabbed by the second gripper 340 to rise, so that the insertion block 265 on one side of the seventh frame body 263 is detached from the slot 115 of the sliding end of the first linear slide rail 110, realizing the complete separation of the polishing structure composed of the second linear slide rail 260, the rotary lifting frame 270, the rotating shaft 280, the polishing head 290, etc. and the grabbing structure, and completing the disassembly of the polishing structure. When the polishing process is not needed, the polishing structure can be quickly removed, avoiding becoming an additional burden of the grabbing device, ensuring the lightweight and smoothness of the grabbing operation, and further improving the operation efficiency of the equipment in diversified production scenes, meeting the process requirements of different factories.

[0069] According to the present application, as shown in Figure 9 , the rotary frame 320 comprises an eighth motor 321 and an eighth frame body 322, the eighth motor 321 is fixedly connected inside the base frame 310, the output end of the eighth motor 321 is in transmission connection with the eighth frame body 322, and the eighth frame body 322 is in rotary connection with the base frame 310.

[0070] According to the present application, as shown in Figure 9 , the third lifting frame 330 comprises a ninth frame body 331, a tenth frame body 332 and an eighth telescopic part 333, the tenth frame body 332 is fixedly connected with the eighth frame body 322, the eighth telescopic part 333 is fixedly connected with the eighth frame body 322, the ninth frame body 331 is in sliding connection inside the tenth frame body 332, the output end of the eighth telescopic part 333 is fixedly connected with the ninth frame body 331, and the second gripper 340 is fixedly connected with the ninth frame body 331.

[0071] According to the present application, as shown in Figure 9 , the grabbing end of the second gripper 340 is provided with a grabbing block 341, and the upper part of the seventh frame body 263 is provided with a limiting frame body 268, and the grabbing block 341 is inserted inside the limiting frame body 268.

[0072] According to the present application, as shown in Figure 8 , the bidirectional locking part 350 comprises a second bidirectional slide rail 351 and an insertion rod 352, the insertion rod 352 is symmetrically arranged, one side of the insertion rod 352 is fixedly connected with the sliding end of the second bidirectional slide rail 351, the other side of the insertion rod 352 is in sliding connection with the sliding end of the first linear slide rail 110, the second bidirectional slide rail 351 is arranged on the upper part of the sliding end of the first linear slide rail 110, and one side of the insertion rod 352 is inserted into the seventh frame body 263.

[0073] According to the present application, as shown in Figure 3 and Figure 8As shown, the electrical connector 360 includes a sixth telescopic piece 361, a sixth sliding block 362, a seventh telescopic piece 363, an eleventh frame 364, a twelfth frame 365, a horizontal plate 366, a plug 367, a connecting sleeve 368, and a horizontal frame 369. The horizontal frame 369 is provided with a power distribution box 3691 on one side. The end of the sixth telescopic piece 361 is fixedly connected with the sliding end of the first linear sliding rail 110. The output end of the sixth telescopic piece 361 is fixedly connected with one side of the sixth sliding block 362. The sixth sliding block 362 is in sliding connection with the sliding end of the first linear sliding rail 110. The bottom of the twelfth frame 365 and the end of the seventh telescopic piece 363 are both fixedly connected with the upper portion of the sixth sliding block 362. The bottom of the eleventh frame 364 is in sliding connection with the inside of the twelfth frame 365. The output end of the seventh telescopic piece 363 is fixedly connected with the horizontal plate 366. The horizontal plate 366 is fixedly connected with the eleventh frame 364. The side of the horizontal plate 366 is inserted into the inside of the plug 367. The plug 367 is fixedly connected with one side of the horizontal frame 369. The other side of the horizontal frame 369 is fixedly connected with the seventh frame 263. The plug 367 is in electrical connection with the power distribution box 3691. The plug 367 is inserted into the inside of the connecting sleeve 368. The connecting sleeve 368 is fixedly connected with the upper portion of the sliding end of the first linear sliding rail 110. The plug 367 is in electrical connection with the connecting sleeve 368 after being inserted into the inside of the connecting sleeve 368.

[0074] Different types or models of cars have different sizes of steering wheels, which requires different specifications of polishing structures to be matched, so the polishing device needs to be replaced. However, the common polishing device replacement equipment has low degree of mechanization, which not only prolongs the time required for replacement, but also reduces the efficiency of replacement work.

[0075] According to the present application, as Figure 10 and Figure 11 shown, the replacement assembly 400 includes a plate frame 410, a third bidirectional sliding rail 420, a twisting piece 430, a fifth linear sliding rail 440, a storage tray 450, and a nut twisting piece 460. The plate frame 410 is fixedly connected with the upper portion of one side of the bottom frame 310. The third bidirectional sliding rail 420 is arranged in the middle portion of the plate frame 410. The fifth linear sliding rail 440 is arranged on the upper portion of the plate frame 410. The storage tray 450 is fixedly connected with the upper portion of the fifth linear sliding rail 440. The storage tray 450 is symmetrically and spaced apart to form storage grooves 451. The polishing head 290 is placed in the inside of the storage grooves 451. The nut twisting piece 460 is arranged at the bottom of the storage grooves 451. The nut twisting piece 460 is in rotational connection with the storage tray 450. The twisting piece 430 is symmetrically arranged on the upper portion of the sliding end of the third bidirectional sliding rail 420. The twisting end of the twisting piece 430 is inserted into the inside of the driving end of the nut twisting piece 460.

[0076] When it is necessary to replace the grinding head 290, before the grinding structure is separated from the gripping frame, the output end of the sixth motor 282 drives the shaft 283 to rotate, so that the two grinding heads 290 rotate to a position that matches the angle of the storage slot 451 on the storage tray 450. After the grinding structure is separated from the gripping frame, the output end of the eighth motor 321 drives the eighth frame 322 to rotate, and the eighth frame 322 drives the third lifting frame 330 and the second gripper 340 to move above the storage tray 450.

[0077] Next, the third bidirectional slide rail 420 drives the upper part of the sliding end of the screwing member 430 to move, so that the screwing head 432 of the screwing member 430 is inserted into the gear disk 461 of the screwing nut member 460. The tenth motor 431 drives the screwing head 432 to rotate, which drives the transmission shaft 462 to rotate through the gear disk 461. The bevel gear 463 at the end of the transmission shaft 462 meshes with the bevel gear 463 at the end of the polygonal sleeve 465, driving the polygonal sleeve 465 to rotate.

[0078] Subsequently, the sliding end of the fifth linear slide rail 440 drives the storage tray 450 to move, moving the empty storage slot 451 to directly below the rotating shaft 280. The eighth telescopic component 333 extends and retracts, causing the tenth frame 332 to descend, so that the grinding head 290 at the bottom of the rotating shaft 280 is inserted into the storage slot 451. At the same time, the nut 281 at the bottom of the rotating shaft 280 is precisely embedded in the polygonal sleeve 465 of the nut tightening component 460 at the bottom of the storage slot 451, thereby removing the nut 281 from the bottom of the rotating shaft 280.

[0079] Then, the third lifting frame 330 is raised, causing the rotating shaft 280 to disengage from the old grinding head 290. The sliding end of the fifth linear slide rail 440 drives the storage tray 450 to move again, moving the storage slot 451 containing the new grinding head 290 to directly below the rotating shaft 280. The third lifting frame 330 descends, causing the rotating shaft 280 to be inserted into the new grinding head 290. The tightening component 430 is activated again, driving the nut 281 to rotate in the opposite direction through the tightening nut component 460, thus securing it to the bottom of the rotating shaft 280 and completing the installation of the new grinding head 290.

[0080] According to this application, such as Figure 11 As shown, the screwing component 430 includes a tenth motor 431 and a screwing head 432. The tenth motor 431 is fixedly connected to the sliding end of the third bidirectional slide rail 420, and the output end of the tenth motor 431 is fixedly connected to the screwing head 432.

[0081] It should be noted that the second bidirectional slide rail 351 and the third bidirectional slide rail 420 are similar in structure to the first bidirectional slide rail 120, and the fifth linear slide rail 440 is similar in structure to the first linear slide rail 110. Their internal structures will not be described in detail.

[0082] According to this application, such as Figure 11As shown, the screwing nut member 460 comprises a gear disc 461 and a transmission shaft 462, the transmission shaft 462 is provided with a bevel gear 463 on one side, and is provided with a polygonal sleeve 465 on the other side, the bevel gear 463 is in meshing connection with the gear disc 461, the gear disc 461 and the transmission shaft 462 are both in rotary connection with the storage disc 450, and the screwing head 432 is inserted in the polygonal sleeve 465.

[0083] It should be noted that the first telescopic member 213, the second telescopic member 223, the third telescopic member 242, the fourth telescopic member 244, the fifth telescopic member 275, the sixth telescopic member 361, the seventh telescopic member 363 and the eighth telescopic member 333 are any one of an electric push rod, an electric cylinder, a hydraulic cylinder and a pneumatic cylinder.

[0084] Other configurations and operations of the grabbing device for processing a steel ring of an automobile steering wheel according to the embodiments of the present application are known to those skilled in the art, and thus will not be described in detail.

[0085] In several embodiments provided in the present application, it should be understood that the disclosed device and method can also be implemented by other ways. The device embodiments described above are only illustrative.

[0086] The above merely illustrates the specific embodiments of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical range disclosed in the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A gripping device for processing a rim of an automobile steering wheel, characterized in that, include: A movable frame (100) is provided with a first linear slide rail (110) on its upper part, and a first bidirectional slide rail (120) is provided at the moving end of the first linear slide rail (110). A gripping and grinding assembly (200) includes a first lifting frame (210), a second lifting frame (220), a first gripper (230), a rotating clamping plate (240), a drive roller (250), a second linear slide rail (260), a rotating lifting frame (270), a rotating shaft (280), and a grinding head (290). A nut (281) is provided at the bottom of the rotating shaft (280). The first lifting frame (210), the second lifting frame (220), the first gripper (230), and the rotating clamping plate (240) are symmetrically arranged. Two drive rollers (250) are provided. The upper part of the first lifting frame (210) is fixedly connected to the sliding end of the first bidirectional slide rail (120). The second lifting frame (220) is located on one side of the lifting end of the first lifting frame (210). The first gripper... The hand (230) is fixedly connected to the lifting end of the second lifting frame (220). The bottom of the rotating clamping plate (240) is provided with an arc groove (248). The upper part of the rotating clamping plate (240) is rotatably connected to the lifting end of the first lifting frame (210). The rotating end of the drive roller (250) is located inside the arc groove (248). The drive roller (250) is rotatably connected to the rotating clamping plate (240). The second linear slide rail (260) is set on one side of the middle part of the first linear slide rail (110). The upper part of the rotating lifting frame (270) is rotatably connected to the sliding end of the second linear slide rail (260). There are two symmetrically arranged rotating shafts (280). The rotating shafts (280) are rotatably connected to the lifting end of the rotating lifting frame (270). The grinding head (290) is installed at the bottom of the rotating shafts (280). The first lifting frame (210) comprises a first frame body (211), a second frame body (212) and a first telescopic piece (213), the rotating clamping plate (240) comprises a first plate body (241), a third telescopic piece (242), a second plate body (243) and a fourth telescopic piece (244), the first plate body (241), the third telescopic piece (242), the second plate body (243) and the fourth telescopic piece (244) are symmetrically arranged, one side of the first plate body (241) is rotationally connected with one side of the first frame body (211), one side of the second plate body (243) is rotationally connected with the other side of the first plate body (241), one side of the third telescopic piece (242) is rotationally connected with the first frame body (211), the output end of the third telescopic piece (242) is rotationally connected with one side of the first plate body (241), one side of the fourth telescopic piece (244) is rotationally connected with one side of the first plate body (241), and the output end of the fourth telescopic piece (244) is rotationally connected with one side of the second plate body (243), the arc-shaped grooves (248) are respectively arranged in the bottom of the first plate body (241) and the second plate body (243), and rotating balls are arranged in the arc-shaped grooves (248); The driving roller (250) comprises a fourth motor (251) and a grooved roller (252), the fourth motor (251) is fixedly connected with the upper portion of the second plate body (243), the output end of the fourth motor (251) is fixedly connected with the grooved roller (252), and the grooved roller (252) is rotationally connected with the second plate body (243).

2. The grabbing device for processing the rim of a steering wheel of an automobile according to claim 1, characterized in that, The bottom of the moving frame (100) is provided with a third straight line sliding rail (130), the third straight line sliding rail (130) comprises a first motor (131), a first lead screw (132) and a first sliding block (133), the first motor (131), the first lead screw (132) and the first sliding block (133) are symmetrically arranged, the output end of the first motor (131) is fixedly connected with one end of the first lead screw (132), the first lead screw (132) is threadedly connected with the first sliding block (133), and the first sliding block (133) is fixedly connected with the bottom of the moving frame (100).

3. The grabbing device for processing the rim of a steering wheel of an automobile according to claim 1, characterized in that, The first straight line sliding rail (110) comprises a second motor (111), a second lead screw (112) and a second sliding block (113), the second motor (111) is fixedly connected with one side of the moving frame (100), the output end of the second motor (111) is fixedly connected with one end of the second lead screw (112), the second lead screw (112) is rotationally connected with the moving frame (100), the second sliding block (113) is slidingly connected with the moving frame (100), the second lead screw (112) is threadedly connected with the second sliding block (113), and the first bidirectional sliding rail (120) is arranged on one side of the second sliding block (113).

4. The grabbing device for processing the rim of a steering wheel of an automobile according to claim 3, characterized in that, The first bidirectional sliding rail (120) comprises a third motor (121), a first bidirectional threaded rod (122) and third sliding blocks (123), the third sliding blocks (123) are symmetrically arranged, the third motor (121) is fixedly connected with one side of the second sliding block (113), the output end of the third motor (121) is fixedly connected with one end of the first bidirectional threaded rod (122), the first bidirectional threaded rod (122) is in threaded connection with the third sliding blocks (123), and the third sliding blocks (123) are in sliding connection with the second sliding block (113).

5. The grabbing device for processing the rim of a steering wheel of an automobile according to claim 4, characterized in that, The first frame body (211) is in sliding connection with the inner portion of the second frame body (212), the output end of the first telescopic piece (213) is fixedly connected with the first frame body (211), and the upper portion of the second frame body (212) and the end portion of the first telescopic piece (213) are fixedly connected with the bottom portion of the third sliding block (123).

6. The grabbing device for processing the rim of a steering wheel of an automobile according to claim 5, characterized in that, The second lifting frame (220) comprises a third frame body (221), a fourth frame body (222) and a second telescopic piece (223), the upper portion of the third frame body (221) is in sliding connection with the inner portion of the fourth frame body (222), the upper portion of the fourth frame body (222) and the end portion of the second telescopic piece (223) are fixedly connected with one side of the first frame body (211), the output end of the second telescopic piece (223) is fixedly connected with the third frame body (221), and the first gripper (230) is fixedly connected with the third frame body (221).

7. The grabbing device for processing the rim of a steering wheel of an automobile according to claim 1, characterized in that, The rotating lifting frame (270) comprises a fifth motor (271), a rotating block (272), a fifth frame body (273), a sixth frame body (274) and a fifth telescopic piece (275), the fifth motor (271) is fixedly connected with the sliding end of the second linear sliding rail (260), the rotating block (272) is rotatably connected with the bottom portion of the sliding end of the second linear sliding rail (260), the output end of the fifth motor (271) is in transmission connection with the rotating block (272), the upper portion of the sixth frame body (274) and the end portion of the fifth telescopic piece (275) are fixedly connected with the rotating block (272), the upper portion of the fifth frame body (273) is in sliding connection with the inner portion of the sixth frame body (274), and the output end of the fifth telescopic piece (275) is fixedly connected with the fifth frame body (273).

8. The grabbing device for processing the rim of a steering wheel of an automobile according to claim 7, characterized in that, The rotating shaft (280) comprises a sixth motor (282) and a shaft rod (283), the nut (281) is arranged at the bottom portion of the shaft rod (283), the sixth motor (282) is fixedly connected with the fifth frame body (273), the output end of the sixth motor (282) is in transmission connection with the shaft rod (283), the shaft rod (283) is symmetrically arranged, and the polishing head (290) is mounted at the bottom portion of the shaft rod (283).

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