A feeding device for pressing and installing lifting lugs

Abstract

The utility model relates to a feeding device for pressing and installing a lifting ear, which comprises: a rotating mechanism, the rotating mechanism comprises a supporting frame and a rotating plate rotatably installed on the top of the supporting frame, the top of the rotating plate is provided with a first station, a second station, a third station and a fourth station distributed in a ring array; a transfer mechanism, the transfer mechanism is arranged at the first station and the fourth station, the transfer mechanism at the first station is used for clamping the lifting ear and placing it on the first station; a detection mechanism, the detection mechanism is arranged at the second station, and is used for detecting the lifting ear on the second station; a flipping mechanism, the flipping mechanism is arranged at the third station, and is used for flipping the lifting ear on the third station; the feeding process of the feeding device for pressing and installing the lifting ear of the utility model is high in automation, does not require manual feeding, significantly improves the feeding efficiency of the lifting ear, and saves costs; and the lifting ear will not be inverted during pressing and will not be reworked.

Description

Technical Field

[0001] The utility model belongs to the technical field of automatic feeding, and in particular relates to a feeding device for pressing and installing a lifting lug. Background Art

[0002] Pressing is a commonly used assembly method, which presses the part to be assembled into another part by applying a certain force to achieve the purpose of fastening. This method is suitable for occasions that require high-strength and high-precision connections, such as machinery manufacturing, aerospace, automobile manufacturing and other industries.

[0003] In the manufacturing industry, many workpieces to be assembled are often of a chimeric structure, that is, one workpiece has a chimeric convex part (such as a shaft) and the other workpiece has a matching concave part (such as a hole). Generally, when processing such assembled workpieces, the matching relationship between the convex part and the concave part is an interference fit or a transition fit. In this case, it is necessary to press the two workpieces together during the assembly process until they are assembled in place. Figure 2 As shown in FIG. 1 , it is a schematic diagram of the structure of the lifting ear 6. The lifting ear 6 includes a lifting ear body 601, a press-fitting hole 602 and a lifting ear protrusion 603. The press-fitting hole 602 penetrates the lifting ear body 601. When press-fitting, the press-fitting hole 602 is pressed into the convex column of the pressing sheet. The lifting ear protrusion 603 is integrally arranged on the inner side wall of the press-fitting hole 602. When press-fitting, the lifting ear protrusion 603 and the convex column are interferingly fitted to improve the stability of the overall structure after press-fitting. Figure 1 , which is a schematic diagram of the structure after the lifting ear 6 and the pressing sheet are pressed together.

[0004] During press-fitting, the operator needs to place the lifting ears one by one on the press-fitting machine, and then the press drives the pressure head down to complete the press-fitting work. However, the manual loading efficiency is low, and the lifting ears are easily placed upside down during placement. At this time, the finished product after press-fitting does not meet the requirements and needs to be reworked (i.e., the pressed lifting ears and pressing sheets are removed and re-pressed), and a large amount of labor investment is required in the early stage, which wastes costs. Utility Model Content

[0005] The utility model provides a feeding device for pressing and installing a lifting ear, which solves the defects of high cost of manual feeding in the prior art and easy reverse placement of the lifting ear, resulting in rework.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a feeding device for pressing and installing a lifting lug, which comprises:

[0007] A rotating mechanism, the rotating mechanism comprising a support frame and a rotating plate rotatably mounted on the top of the support frame, the top of the rotating plate being provided with a first station, a second station, a third station and a fourth station distributed in a circular array;

[0008] A transfer mechanism, wherein the transfer mechanism is arranged at the first station and the fourth station, and the transfer mechanism at the first station is used to clamp the lifting lug and place it on the first station;

[0009] A detection mechanism, the detection mechanism is arranged at the second station and is used to detect the lifting lug on the second station;

[0010] A turning mechanism, which is arranged at the third station and is used to turn over the lifting lug on the third station;

[0011] The transfer mechanism at the fourth station is used to transfer the lifting lug after flipping.

[0012] Optimally, it also includes a positioning mechanism arranged on one side of the support frame, the positioning mechanism includes a positioning frame, a carrier plate fixed on the top of the positioning frame, a carrier groove opened on the top of the carrier plate, an avoidance groove opened at the bottom of the carrier groove and passing through the carrier plate, and a positioning head that can be lifted and lowered in the avoidance groove, and the positioning head gradually expands in diameter from top to bottom.

[0013] Optimally, the rotating mechanism also includes a support plate fixed on the top of the support frame, a ring fixed on the top of the support plate, a rotating part rotatably arranged in the ring, a photoelectric sensor fixed on the top of the ring, and an induction sheet fixed on the outside of the rotating part and cooperating with the photoelectric sensor, and the rotating plate is connected to the rotating part.

[0014] Optimally, the transfer mechanism includes a transfer plate that can be lifted and lowered on the top of the support frame, a rotating plate rotatably installed on the top of the transfer plate, a finger cylinder fixed on both sides of the rotating plate, and a clamping column connected to the finger cylinder, and the clamping column is inserted into the press-fit hole to clamp the lifting ear body.

[0015] Optimally, the detection mechanism includes a detection frame fixed on the top of the support frame, a CCD camera fixed on the detection frame and facing the support frame, and a light source mounted on the CCD camera, and the CCD camera is used to detect the lifting lug on the second station.

[0016] Optimally, the flipping mechanism includes a lifting plate that is liftably arranged on the top of the support frame, a clamping cylinder rotatably installed on one side of the lifting plate, and a clamping plate connected to the clamping cylinder, wherein the clamping plate is used to clamp and flip the lifting ear on the third workstation.

[0017] Optimally, the flipping mechanism further includes an anti-slip protrusion arranged on the inner side of the clamping plate.

[0018] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0019] The utility model discloses a feeding device for pressing and installing a lifting ear, wherein a first station, a second station, a third station and a fourth station are arranged on a rotating plate, and the lifting ear is clamped and transferred to the first station by a transfer mechanism, and after the front and back sides of the lifting ear are detected by a detection mechanism at the second station, if the lifting ear is inverted, it is turned over by a flipping mechanism at the third station, and finally the lifting ear is transferred to the pressing machine by a transfer mechanism at the fourth station. The whole feeding process has a high degree of automation, and does not require manual feeding, which significantly improves the feeding efficiency of the product and saves costs; moreover, the lifting ear will not be inverted during pressing and installation, and rework will not occur. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure after the lifting lug and the pressing sheet are pressed together;

[0021] Figure 2 is a cross-sectional view of the lifting lug;

[0022] Figure 3 It is a schematic diagram of the structure of the utility model;

[0023] Figure 4 It is a structural schematic diagram of the positioning mechanism of the utility model;

[0024] Figure 5 This is the front view of the positioning mechanism of the utility model;

[0025] Figure 6 This is the front view of the rotating mechanism of the utility model;

[0026] Figure 7 This is a structural schematic diagram of the workstation board of the utility model;

[0027] Figure 8 It is a structural schematic diagram of the transfer mechanism of the utility model;

[0028] Fig. 9 It is a structural schematic diagram of the turning mechanism of the utility model;

[0029] Description of reference numerals:

[0030] 1. Positioning mechanism; 101. Positioning frame; 102. Carrying plate; 103. Carrying slot; 104. Avoidance slot; 105. Positioning cylinder; 106. Positioning plate; 107. Positioning column; 108. Positioning head;

[0031] 2. Rotating mechanism; 201. Support frame; 202. Support plate; 203. Ring; 204. Rotating part; 205. Turning plate; 206. Induction sheet; 207. Photoelectric sensor; 208. Station plate; 209. Placement slot; 210. Through slot;

[0032] 3. Transfer mechanism; 301. Transfer cylinder; 302. Transfer plate; 303. First rotating cylinder; 304. Rotating plate; 305. Finger cylinder; 306. Clamping column;

[0033] 4. Detection mechanism; 401. Detection frame; 402. CCD camera; 403. Light source;

[0034] 5. Turning mechanism; 501. Vertical plate; 502. Slide rail; 503. Sliding block; 504. Lifting cylinder; 505. Lifting plate; 506. Second rotating cylinder; 507. Clamping cylinder; 508. Clamping plate; 509. Anti-slip protrusion;

[0035] 6. Lifting ear; 601. Lifting ear body; 602. Press-fit hole; 603. Lifting ear protrusion. DETAILED DESCRIPTION

[0036] The utility model is further described below in conjunction with the embodiments shown in the accompanying drawings.

[0037] like Figure 2 As shown in FIG. 1 , it is a schematic diagram of the structure of the lifting ear 6. The lifting ear 6 includes a lifting ear body 601, a press-fitting hole 602 and a lifting ear protrusion 603. The press-fitting hole 602 penetrates the lifting ear body 601. When press-fitting, the press-fitting hole 602 is pressed into the convex column of the pressing sheet. The lifting ear protrusion 603 is integrally arranged on the inner side wall of the press-fitting hole 602. When press-fitting, the lifting ear protrusion 603 and the convex column are interferingly fitted to improve the stability of the overall structure after press-fitting. Figure 1 , which is a schematic diagram of the structure after the lifting ear 6 and the pressing sheet are pressed together.

[0038] like Figure 3 The figure is a schematic diagram of the structure of the feeding device for the press-fitting of the lifting lug of the utility model, which includes a positioning mechanism 1, a rotating mechanism 2, a transfer mechanism 3, a detection mechanism 4 and a flipping mechanism 5. The top ring of the rotating mechanism 2 is provided with a first station, a second station, a third station and a fourth station, and the angle between each adjacent two stations is 90° to ensure coordination with the subsequent working mechanisms.

[0039] The positioning mechanism 1 is used to position the lifting ear 6 transported here, so that the transfer mechanism 3 at the first station can accurately clamp the lifting ear 6 and place it on the first station; the detection mechanism 4 is arranged at the second station, and is used to detect the front and back sides of the lifting ear 6; the flipping mechanism 5 is arranged at the third station, and is used to flip the inverted lifting ear 6; finally, the transfer mechanism 3 at the fourth station clamps the lifting ear 6 on the fourth station and transfers it to the pressing machine for pressing the lifting ear 6 and the pressing sheet.

[0040] like Figure 3 As shown, the rotating mechanism 2 is used to drive the lifting lug 6 to rotate between four stations, thereby completing the steps of conveying, detecting, turning over and loading the lifting lug 6. Figure 6 As shown, the rotating mechanism 2 includes a support frame 201, a support plate 202, a collar 203, a rotating part 204, a rotating plate 205, a sensing sheet 206, a photoelectric sensor 207, a station plate 208, a placement slot 209 and a through slot 210. The support frame 201 is fixed on the machine platform by screws, and the support plate 202 is fixed on the top of the support frame 201.

[0041] The ring 203 is fixed on the top of the support plate 202, and the rotating part 204 is rotatably arranged in the ring 203. A rotating mechanism connected to the rotating part 204 is fixed inside the ring 203 to drive the rotating part 204 to rotate (the rotating mechanism uses a commercially available NJ60-5C hollow rotating platform to avoid the position of the detection frame 401).

[0042] The rotating plate 205 is fixed on the top of the rotating part 204 , and the rotating plate 205 is driven to rotate by the rotating part 204 , so as to drive the lifting lug 6 to rotate between the four stations, thereby completing the steps of conveying, detecting, turning over and loading the lifting lug 6 .

[0043] The photoelectric sensor 207 is fixed on the top of the collar 203, and the induction sheet 206 is fixed on the outside of the rotating part 204 and cooperates with the photoelectric sensor 207. By setting the photoelectric sensor 207 and the induction sheet 206 that cooperate with each other, the accuracy of the initial position of the rotating plate 205 is ensured, and the transfer mechanism 3 at the first station ensures that the lifting ear 6 is accurately clamped to the first station.

[0044] like Figure 3 As shown, four workstation plates 208 are fixed on the top of the rotating plate 205, and the four workstation plates 208 are respectively located at the first workstation, the second workstation, the third workstation and the fourth workstation. Figure 7 As shown, the placement groove 209 is provided at the top of the station plate 208, and the transfer mechanism 3 at the first station clamps the ear 6 and places it in the placement groove 209, and is driven by the rotating plate 205 to rotate to the subsequent station. The through groove 210 is provided at the bottom of the placement groove 209 and passes through the station plate 208. The through groove 210 is used to avoid the bottom structure of the ear 6 on the one hand, and to avoid the clamping plate 508 of the flip mechanism 5 on the other hand.

[0045] like Figure 4 , 5 As shown, it is a structural diagram of the positioning mechanism 1. The positioning mechanism 1 is connected to an external conveyor belt mechanism. The conveyor belt mechanism transports the lifting ear 6 to the positioning mechanism 1. After the lifting ear 6 is positioned by the positioning mechanism 1, the transfer mechanism 3 at the first station transfers the positioned lifting ear 6 to other stations to ensure the accuracy of subsequent detection, flipping and blanking (when the conveyor belt mechanism transports the lifting ear 6 to the positioning mechanism 1, the position of the lifting ear 6 on the loading slot 103 is prone to deviation. If it is clamped directly, it is easy to fail to clamp).

[0046] The conveyor belt mechanism is a conventional belt conveying mechanism, which consists of a bracket, a conveyor belt, a conveyor roller and a driving motor. The conveyor roller is rotatably installed on the bracket, and the conveyor belt is wound around two groups of conveyor rollers, one group of which is connected to the driving motor. The conveyor roller is driven to rotate by the driving motor, and then the conveyor belt is driven to rotate to complete the transportation of the lifting lug 6 (the conveyor belt mechanism is a conventional belt conveying mechanism, and its specific structure is not described in detail here).

[0047] like Figure 4 , 5 As shown, the positioning mechanism 1 includes a positioning frame 101, a carrier plate 102, a loading slot 103, an avoidance slot 104, a positioning cylinder 105, a positioning plate 106, a positioning column 107 and a positioning head 108. The positioning frame 101 is fixed on the machine platform by screw fastening, the carrier plate 102 is fixed on the top of the positioning frame 101, and the loading slot 103 is opened at the bottom of the carrier plate 102 and is used to carry the lifting lug 6 transported thereto by the conveyor belt mechanism.

[0048] The avoidance groove 104 is vertically opened at the bottom of the loading groove 103 and penetrates the loading plate 102 . The avoidance groove 104 is used to avoid the bottom structure of the lifting ear 6 on the one hand, and to provide an avoidance space for the subsequent lifting movement of the positioning column 107 and the positioning head 108 on the other hand.

[0049] The cylinder body of the positioning cylinder 105 is fixed on the top of the positioning frame 101 , and the positioning plate 106 is connected to the piston rod of the positioning cylinder 105 . The positioning plate 106 is driven by the positioning cylinder 105 to perform lifting motion, and then the positioning head 108 completes the positioning of the lifting ear 6 .

[0050] The positioning posts 107 are fixed to the top of the positioning plate 106, and the number of the positioning posts 107 is the same as the number of the press-fit holes 602 on the lifting ears 6. The positioning head 108 is integrally connected to the top of the positioning posts 107, such as Figure 5 As shown, the diameter of the positioning head 108 gradually expands from top to bottom, that is, the positioning head 108 is in a truncated cone shape. When the positioning cylinder 105 drives the positioning head 108 to rise, the positioning head 108 will be inserted into the press-fitting hole 602 of the lifting ear 6. Due to the setting of the truncated cone structure of the positioning head 108, when the position of the lifting ear 6 in the loading slot 103 deviates, the positioning head 108 will guide the lifting ear 6 back to the correct position. This facilitates the transfer mechanism 3 at the first station to accurately clamp the lifting ear 6.

[0051] There are two groups of transfer mechanisms 3, which are located at the first station and the fourth station respectively. The transfer mechanism 3 at the first station is used to clamp the lifting lug 6 on the loading slot 103 and transfer it to the placement slot 209; the transfer mechanism 3 at the fourth station is used to clamp the lifting lug 6 after flipping and transfer it to the subsequent press machine for press fitting. Figure 8As shown, the transfer mechanism 3 includes a transfer cylinder 301 , a transfer plate 302 , a first rotating cylinder 303 , a rotating plate 304 , a finger cylinder 305 and a clamping column 306 .

[0052] The transfer cylinder 301 is fixed on the top of the support frame 201, and the transfer plate 302 is connected to the transfer cylinder 301, and the transfer plate 302 is driven to move up and down by the transfer cylinder 301. The first rotating cylinder 303 is fixed on the top of the transfer plate 302, and the rotating plate 304 is connected to the rotating part of the first rotating cylinder 303, and the rotating plate 304 is driven to rotate by the first rotating cylinder 303.

[0053] Finger cylinders 305 are fixed on both sides of the rotating plate 304, and are used to clamp the lugs 6 on the loading slots 103 and transfer them to the placement slots 209. By arranging finger cylinders 305 on both sides of the rotating plate 304, the efficiency of clamping and transferring is improved.

[0054] The clamping column 306 is fixed on the finger cylinder 305 to clamp the ear 6 on the loading slot 103. The clamping column 306 is not cylindrical, but semi-cylindrical. When clamping the ear 6, the clamping column 306 is lowered and inserted into the press-fitting hole 602, and then moves outward to expand and support the ear 6 from the inside.

[0055] Since the pressing hole 602 is provided with a lifting lug protrusion 603 , the clamping column 306 is designed to be semi-cylindrical, which can meet the clamping requirements and avoid interference.

[0056] The detection mechanism 4 is fixed on the support frame 201 and is located at the second station. The detection mechanism 4 includes a detection frame 401, a CCD camera 402 and a light source 403. The detection frame 401 is fixed on the top of the support frame 201, and the CCD camera 402 is fixed on the detection frame 401 and faces the station board 208 at the second station, and is used to detect whether the front and back positions of the ear 6 on the station board 208 are correct. The light source 403 is mounted on the CCD camera 402 to provide sufficient light illumination for the CCD camera 402 to improve the accuracy of the detection result.

[0057] The detection frame 401 is fixed on the top of the support frame 201 and passes through the support plate 202, the ring 203, the rotating part 204 and the rotating plate 205, so the rotation of the rotating plate 205 will not affect the detection frame 401 (through holes are opened on the support plate 202, the ring 203, the rotating part 204 and the rotating plate 205 to avoid the position of the detection frame 401, and the rotating plate 205 is driven to rotate by the hollow rotating platform, and the hollow rotating platform can also avoid the position of the detection frame 401).

[0058] like Fig. 9As shown, the flip mechanism 5 is fixed on the top of the support frame 201 and is located at the third station. The flip mechanism 5 is used to flip the unqualified lifting lug 6. The flip mechanism 5 includes a vertical plate 501, a slide rail 502, a slider 503, a lifting cylinder 504, a lifting plate 505, a second rotating cylinder 506, a clamping cylinder 507, a clamping plate 508 and an anti-slip protrusion 509. The vertical plate 501 is vertically fixed on the top of the support frame 201, the slide rail 502 is fixed on the inner side of the vertical plate 501, and the slider 503 is slidably installed on the slide rail 502. The lifting plate 505 is fixed on the slider 503 and is connected to the lifting cylinder 504. The lifting cylinder 504 drives the lifting plate 505 to move up and down.

[0059] The second rotating cylinder 506 is fixed on the lifting plate 505, the clamping cylinder 507 is fixed on the rotating part of the second rotating cylinder 506, and the clamping plate 508 is fixed on the clamping cylinder 507. The clamping cylinder 507 drives the clamping plate 508 to clamp the ear 6 on the third workstation, and with the cooperation of the second rotating cylinder 506 and the lifting cylinder 504, the flipping of the ear 6 is completed.

[0060] The inner side of the clamping plate 508 is provided with an anti-slip protrusion 509 to improve the stability of the clamping ear 6 and prevent the ear 6 from falling off the clamping claw cylinder 507 when turning over.

[0061] The feeding process of the feeding device for pressing and installing the lifting lugs of the utility model is as follows:

[0062] First, the conveyor belt mechanism conveys the lifting lug 6 to the loading slot 103, and the positioning cylinder 105 drives the positioning plate 106 to move up and down, and then the positioning head 108 completes the positioning of the lifting lug 6, so that the transfer mechanism 3 at the first station can accurately clamp the lifting lug 6;

[0063] The transfer mechanism 3 at the first station clamps the lifting lug 6 on the loading slot 103 and places it in the placement slot 209. The rotating plate 205 drives the lifting lug 6 to rotate to the second station. The detection mechanism 4 detects the lifting lug 6 to ensure that the front and back of the lifting lug 6 are accurate.

[0064] The rotating plate 205 continues to rotate to drive the lifting lug 6 to rotate to the third station. If the lifting lug 6 is inverted, the flipping mechanism 5 flips it 180°, otherwise, no corresponding flipping operation is required.

[0065] Finally, the rotating plate 205 drives the lifting lug 6 to rotate to the fourth station, and the transfer mechanism 3 at the fourth station clamps the turned lifting lug 6 and transfers it to the subsequent press-fitting machine for press-fitting. The entire loading process has a high degree of automation, and no manual loading is required, which improves the loading efficiency and saves costs; and the lifting lug 6 will not be inverted during press-fitting, and rework will not occur.

[0066] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A feeding device for pressing a lifting ear, wherein the lifting ear (6) comprises a lifting ear body (601), a pressing hole (602) penetrating the lifting ear body (601), and a lifting ear protrusion (603) integrally connected to the inner side wall of the pressing hole (602), characterized in that: It includes: A rotating mechanism (2), the rotating mechanism (2) comprising a support frame (201) and a rotating plate (205) rotatably mounted on the top of the support frame (201), the top of the rotating plate (205) being provided with a first station, a second station, a third station and a fourth station distributed in a ring array; A transfer mechanism (3), the transfer mechanism (3) being arranged at the first station and the fourth station, the transfer mechanism (3) at the first station being used for clamping the lifting lug (6) and placing it on the first station; A detection mechanism (4), the detection mechanism (4) being arranged at the second workstation and used for detecting the lifting lug (6) on the second workstation; A turning mechanism (5), the turning mechanism (5) being arranged at the third station and used for turning over the lifting lug (6) on the third station; The transfer mechanism (3) at the fourth station is used to transfer the lifting lug (6) after flipping.

2. A feeding device for pressing and mounting a lifting lug according to claim 1, characterized in that: It also includes a positioning mechanism (1) arranged on one side of the support frame (201), the positioning mechanism (1) including a positioning frame (101), a carrier plate (102) fixed on the top of the positioning frame (101), a carrier groove (103) opened on the top of the carrier plate (102), an avoidance groove (104) opened at the bottom of the carrier groove (103) and penetrating the carrier plate (102), and a positioning head (108) arranged in the avoidance groove (104) in a liftable manner, the positioning head (108) gradually expanding in diameter from top to bottom, and the lifting ear (6) is placed in the carrier groove (103).

3. A feeding device for pressing and mounting a lifting lug according to claim 1, characterized in that: The rotating mechanism (2) further comprises a support plate (202) fixed on the top of the support frame (201), a collar (203) fixed on the top of the support plate (202), a rotating portion (204) rotatably arranged in the collar (203), a photoelectric sensor (207) fixed on the top of the collar (203), and a sensing sheet (206) fixed on the outside of the rotating portion (204) and cooperating with the photoelectric sensor (207), and the rotating plate (205) is connected to the rotating portion (204).

4. A feeding device for pressing and mounting a lifting lug according to claim 1, characterized in that: The transfer mechanism (3) comprises a transfer plate (302) which is liftably arranged on the top of the support frame (201), a rotating plate (304) which is rotatably installed on the top of the transfer plate (302), a finger cylinder (305) fixed on both sides of the rotating plate (304), and a clamping column (306) connected to the finger cylinder (305), wherein the clamping column (306) is inserted into the press-fitting hole (602) to clamp the lifting ear body (601).

5. The feeding device for pressing and mounting the lifting lug according to claim 1, characterized in that: The detection mechanism (4) comprises a detection frame (401) fixed on the top of the support frame (201), a CCD camera (402) fixed on the detection frame (401) and facing the support frame (201), and a light source (403) sleeved on the CCD camera (402), wherein the CCD camera (402) is used to detect the lifting lug (6) on the second workstation.

6. A feeding device for pressing and mounting a lifting lug according to claim 1, characterized in that: The flipping mechanism (5) comprises a lifting plate (505) which is liftably arranged on the top of the support frame (201), a clamping cylinder (507) which is rotatably installed on one side of the lifting plate (505), and a clamping plate (508) connected to the clamping cylinder (507), wherein the clamping plate (508) is used to clamp and flip the lifting lug (6) on the third workstation.

7. A feeding device for pressing and mounting a lifting lug according to claim 6, characterized in that: The turning mechanism (5) further comprises an anti-slip protrusion (509) arranged on the inner side of the clamping plate (508).

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