Squirrel-cage turnover mechanism

Abstract

The invention provides a squirrel-cage type turnover mechanism, and belongs to the technical field of turnover equipment. The problems that the strokes of an upper clamping piece and a lower clamping piece are inconsistent due to single-side bearing of an existing pressing mechanism, and the utilization rate of the pressing mechanism is low are solved. The squirrel cage type turnover mechanism comprises a bottom frame and a squirrel cage frame and further comprises a linkage clamping mechanism, and the linkage clamping mechanism comprises an upper clamping piece, a lower clamping piece, an upper air cylinder with a downward rod head, a lower air cylinder with an upward rod head and a linkage gear set. According to the scheme, through the action of the linkage gear set, the upper and lower clamping pieces, the upper and lower air cylinders and the linkage gear set are combined to form a linkage whole, the upper and lower clamping pieces move synchronously and have the same stroke, the accuracy of the material clamping position is improved, and the utilization rate of the air cylinders is increased.

Description

Technical Field

[0001] The invention belongs to the technical field of turnover equipment, in particular to a squirrel cage type turnover mechanism. Background Art

[0002] The turning machine is an automated device that can turn materials at a certain angle. It can provide safe, stable and efficient process transportation and is widely used in industrial production such as metallurgy, stamping, sheet metal, and molds. Among them, the squirrel cage turning machine is a more common turning mechanism, which generally includes a circular squirrel cage frame and a clamping mechanism installed in the squirrel cage frame. After the clamping mechanism clamps the material, the circular squirrel cage frame rotates under the drive of the driving device and drives the material to turn.

[0003] The Chinese utility model patent with publication number "CN213622163U" discloses a 180-degree squirrel cage type turning machine, including a squirrel cage frame, a fixed frame is provided on the upper and lower sides of the squirrel cage frame, a pair of belt conveyors distributed left and right are provided on the fixed frame for conveying materials, a clamping mechanism is provided between the two belt conveyors, and the clamping mechanism includes a positioning frame composed of fixed rods staggered horizontally and vertically, a plurality of pairs of clamping plates are provided on the side of the positioning frame facing the goods, a pushing cylinder for driving the positioning frame to move up and down is provided on the side of the fixed frame away from the goods, a plurality of suction cups with openings facing the goods are provided on the fixed rod, the pushing cylinder pushes the clamping plates to clamp the materials and further fixes the materials by sucking the materials through the suction cups, and limit blocks protruding from the surfaces of the clamping plates are provided at both ends of the clamping plates to limit the materials.

[0004] The above-mentioned 180-degree squirrel cage turning machine transmits materials through the belt conveyors fixed on the left and right sides, which requires that the size of the materials must strictly comply with the spacing between the two belt conveyors. It has poor universality for materials of different sizes, and the belt has poor stability when transporting heavier materials. In addition, the method of fixing the materials by suction cups and limit blocks at both ends of the clamp has poor effect and narrow application. When the surface of the material is not flat, the suction cup will obviously lose its effect, and the limit blocks at both ends of the clamp require that the size of the material must strictly adapt to the length of the clamp, otherwise the effect of its limiting fixation is almost zero, and the overall structure needs to be improved.

[0005] A Chinese invention patent with publication number "CN107352259A" discloses a squirrel cage turning machine, in which a power roller assembly is provided on the upper and lower sides of the squirrel cage frame, and materials are conveyed through the power roller assembly; a clamping mechanism is also provided on the upper and lower sides of the squirrel cage frame, and the clamping mechanism includes a push cylinder, a push plate, a push guide column and a push linear bearing provided on the rod head of the push cylinder, and the push cylinder pushes the push plate to clamp the materials from the upper and lower sides; clamping parts are provided on the left and right sides of the squirrel cage frame, respectively, and the clamping parts include a sliding sleeve guide column provided on the left and right sides of the squirrel cage frame and fixed on the crossbeam, a fixed crossbeam for connecting multiple sliding sleeves, a clamping cylinder provided on the fixed crossbeam, a clamping guide column, a clamping linear bearing and a clamping push plate fixed on the rod head of the clamping cylinder, and the clamping cylinder pushes the clamping push plate to fix the materials from the left and right sides to prevent the materials from falling off and rolling during the turning process.

[0006] The above-mentioned squirrel cage turning machine only pushes the clamping mechanism arranged on the upper and lower sides of the squirrel cage frame by the pushing cylinder. During the lifting process, the lower clamping mechanism bears the entire weight. When the material to be clamped is heavy, it may cause the pushing strokes of the upper and lower cylinders to be inconsistent, thereby affecting the clamping effect; and the position of the clamping member of this scheme is relatively fixed. When the strokes of the clamping mechanisms on the upper and lower sides are inconsistent, the final stopping position of the material will deviate from the preset positions of the clamping members on the left and right sides, and may tilt or even topple over, seriously affecting the clamping effect, or the optimal position of the clamping member needs to be adjusted before each use. The operation is very cumbersome and complicated, and during the material lifting process, only the clamping mechanism on the lower side works to lift the material, and the clamping mechanism on the upper side is not fully utilized, resulting in a low utilization rate. Summary of the invention

[0007] In view of the shortcomings of the prior art, the purpose of the present invention is to solve the problems of the prior art's clamping mechanism, such as inconsistent strokes of the upper and lower clamping parts and low utilization of the clamping mechanism due to unilateral load-bearing, and to provide a squirrel cage flipping mechanism with optimized structure, precise stroke and high utilization.

[0008] The purpose of the present invention can be achieved by the following technical solutions:

[0009] A squirrel cage type turning mechanism, comprising a base frame and a squirrel cage frame, wherein a pair of roller brackets are respectively arranged on the front and rear sides of the base frame, the roller brackets are provided with rollers for supporting the squirrel cage frame, and the base frame is also provided with a squirrel cage driving motor for driving the squirrel cage frame to rotate; the squirrel cage frame comprises two circular frames arranged concentrically in front and behind and a plurality of horizontally arranged crossbeams for connecting the two circular frames, power rollers and roller motors for driving the power rollers are respectively arranged on the upper and lower sides of the squirrel cage frame, and rollers are arranged at intervals in the power rollers, characterized in that: the squirrel cage frame also includes a linkage clamping mechanism, which includes an upper clamping member, a lower clamping member, an upper cylinder with a rod head facing downward, and a rod head The upper end of the upper cylinder is fixedly connected to the cross beam, the lower end is fixedly connected to the linkage gear group, and the rod head is extended to be connected to the lower clamping piece; the lower end of the lower cylinder is fixedly connected to the cross beam, the upper end is fixedly connected to the linkage gear group, and the rod head is extended to be connected to the upper clamping piece; the linkage gear group includes a horizontally arranged linkage cross beam, the two ends of the linkage cross beam are respectively fixedly connected to two circular frames, a linkage gear frame is fixedly connected to the middle of the linkage cross beam, a linkage gear is arranged on the linkage gear frame, the left and right sides of the linkage gear are respectively meshed and transmission-connected with the vertically arranged upper rack and lower rack, the upper end of the upper rack is fixedly connected to the upper clamping piece, and the lower end of the lower rack is fixedly connected to the lower clamping piece.

[0010] In the initial state, the rod heads of the upper and lower cylinders extend out, and the upper and lower clamps are located at the high point and the low point respectively. When the material to be turned over is transported to the appropriate position by the power roller and stops, the linkage clamping mechanism is started, the rod heads of the upper and lower cylinders retract and pull the upper and lower clamps closer to the middle, and the rod head of the upper cylinder pulls the lower clamp to support the material to lift upward. At this time, only the lower clamp bears the weight. In the process of lifting the material, only the upper cylinder is doing work, and the lower cylinder is only responsible for pulling back the upper clamp. In this case, on the one hand, it is easy to cause inconsistent strokes of the upper and lower clamps, and on the other hand, the lower cylinder is not fully utilized. Therefore, this scheme sets a linkage gear set in the middle of the upper and lower clamps to keep the strokes of the upper and lower clamps consistent, so that the material can finally stay in the middle of the squirrel cage, and it can also improve the utilization rate of the upper and lower cylinders.

[0011] The linkage crossbeam of the linkage gear set is parallel to the axis of the squirrel cage frame and is arranged on one side of the axis. The linkage gear set will not interfere with the transportation of the material. Under the action of the linkage gear set, the upper and lower clamping parts, the upper and lower cylinders and the linkage gear set itself are combined to form a linkage whole, namely, a linkage clamping mechanism. When the upper and lower cylinders retract and pull the upper and lower clamping parts, the lower clamping part first contacts the material under the pull of the upper cylinder, and the upper and lower cylinders continue to retract, and the upper cylinder pulls the lower clamping part to lift the material. At this time, under the action of the linkage gear set, the force is transmitted to the upper clamping part through the lower rack, the linkage gear, and the upper rack and pulled by the lower cylinder. It can be regarded that the lower cylinder is also indirectly doing work on the lifting of the material at the same time. Therefore, the movement of the upper and lower clamping parts is synchronous, and the stroke is the same, ensuring that the material falls accurately on the center of the squirrel cage frame when clamped. At the same time, in the process of lifting the material, the upper and lower cylinders are fully utilized to improve the utilization rate of the cylinder.

[0012] In the above-mentioned squirrel cage type turning mechanism, an anti-dumping assembly is provided on the same side of the upper and lower clamping members, and the anti-dumping assembly includes a horizontally arranged anti-dumping cylinder and a guide assembly which are fixedly connected to the upper and lower clamping members, the rod head of the anti-dumping cylinder faces into the squirrel cage frame and a guard plate is fixedly connected to the rod head, and the guard plate is parallel to the axis of the squirrel cage frame; the guide assembly includes an anti-dumping guide column and a matching anti-dumping guide rail, and the end of the anti-dumping guide column facing into the squirrel cage frame is fixedly connected to the guard plate.

[0013] When the material is lifted and fixed in the center of the cage frame by the linkage clamping mechanism, the anti-dumping assembly on one side is activated, and the anti-dumping cylinder pushes the guard plate forward, and under the support and guidance of the guide assembly, until the guard plate touches the material, and then the cage frame begins to flip. In this solution, the anti-dumping assembly moves synchronously with the upper and lower clamping parts, and its relative position with the upper and lower clamping parts remains unchanged. Therefore, no matter how the shape and size of the material change, or whether the height of the material stops is as expected, when the upper and lower clamping parts clamp the material, the anti-dumping assembly can better adapt and provide a more stable and more precise support effect. In addition, unlike the prior art, the present invention only needs to set up an anti-dumping assembly on one side. During the process of the squirrel cage frame flipping the material 180° along the guard plate side downward and the non-guard plate side upward, the anti-dumping assembly and the upper and lower clamping parts provide support and limiting functions, and anti-dumping is achieved through the material's own gravity, rather than clamping the material through clamping mechanisms in four directions of up, down, left and right as in the prior art. This can effectively reduce the damage to the material contact surface caused by the clamping mechanism during the clamping process.

[0014] In the above-mentioned squirrel cage flipping mechanism, the linkage gear frame includes two limit columns which are horizontally arranged and perpendicular to the linkage beam. One end of the two limit columns is fixedly connected to the linkage beam, and the other end is connected as a whole through a gear mounting plate. A gear shaft penetrating the gear mounting plate is provided in the middle of the gear mounting plate. The end of the gear shaft facing the linkage beam is connected to the linkage gear through a bearing. The linkage gear and the upper and lower racks are all located between the two gear limit columns. The two limit columns are provided with support bearings whose outer circumferences are in contact with the upper and lower racks.

[0015] The linkage gear frame is used to install and fix the linkage gear. The limit columns are located on the left and right sides of the upper and lower racks for limiting to prevent the upper and lower racks and the linkage gears from loosening during operation. At the same time, in order to reduce the friction between the limit column and the rack, which leads to a decrease in transmission efficiency, a bearing is arranged on the limit column, and the outer peripheral surface of the bearing is in contact with the rack.

[0016] In the above-mentioned squirrel cage flipping mechanism, the upper clamping member includes a vertically arranged upper clamping mounting plate, the anti-dumping cylinder and the guide assembly are both fixedly connected to the upper clamping mounting plate on the side facing the outside of the squirrel cage frame, and the guide column and the rod head of the anti-dumping cylinder penetrate the upper clamping mounting plate; the lower clamping member includes a vertically arranged lower clamping mounting plate, the anti-dumping cylinder and the guide assembly are both fixedly connected to the lower clamping mounting plate on the side facing the outside of the squirrel cage frame, and the guide column and the rod head of the anti-dumping cylinder penetrate the lower clamping mounting plate; the left and right sides of the upper and lower clamping mounting plates are both fixedly connected with clamping sliders, and a clamping slide rail compatible with the clamping slider is vertically arranged on the inner side of the circular frame, and the upper and lower clamping mounting plates can slide up and down along the clamping slide rail.

[0017] The anti-dumping cylinder, guide assembly, slider and other components are fixed on the same side by the upper and lower clamping mounting plates to form a whole. The whole is guided to slide synchronously by the slide rail, and the length of the connection part between the rack and the upper and lower clamping mounting plates is increased to increase the connection strength of the rack. Only the rod head of the anti-dumping cylinder and the guide column of the guide assembly are allowed to pass through the upper and lower clamping mounting plates, reducing the other parts of the anti-dumping cylinder and the guide assembly from entering the clamping area of ​​the squirrel cage, reducing the possibility of mutual interference between components, and optimizing the overall structural layout.

[0018] In the above-mentioned squirrel cage turning mechanism, a plurality of spaced clamping arms are provided on the upper and lower clamping mounting plates facing the inner side of the squirrel cage frame, one end of the clamping arm is fixedly connected to the upper and lower clamping mounting plates, and the other end is provided with a raised limit clamping block, and a clamping arm accommodating cavity adapted to the clamping arm is provided on the power roller, the width of the clamping arm is smaller than the spacing between adjacent rollers, the clamping arm can be accommodated in the clamping arm accommodating cavity and the bottom / top of the upper and lower parts of the clamping arm are respectively higher / lower than the contact horizontal plane between the roller and the material.

[0019] During the flipping process, the upper and lower clamp arms are responsible for limiting and supporting the material, and the limit clamp blocks at the ends of the clamp arms can further prevent the material from slipping and tipping. In the initial state or when the flipping is completed, the upper and lower clamp arms can be accommodated between two adjacent rollers, and the upper and lower clamp arms will not protrude from the contact surface between the roller and the material, and will not affect the transportation of the material.

[0020] In the squirrel cage turning mechanism, the upper and lower clamping members are respectively provided with cylinder push seats adapted to the upper and lower cylinders, and the cylinder push seats are provided with floating joints, which are connected to the rod heads of the upper and lower cylinders through the floating joints.

[0021] The cylinder push seat is used to connect with the upper and lower cylinders. However, during the operation of the equipment, vibrations are inevitable, which may cause the rod heads of the upper and lower cylinders to tilt. Working in this state is likely to damage the cylinder rod and the inside of the cylinder. Therefore, a floating joint is provided between the cylinder rod head and the cylinder push seat. This can effectively prevent the cylinder rod from working in a tilted state and extend the service life of the cylinder.

[0022] In the squirrel cage type turning mechanism, a first gear is fixedly connected to the output shaft of the squirrel cage driving motor, and an annular second gear meshing with the first gear is fixedly connected to the outer side of the circular frame.

[0023] In the prior art, chain and sprocket transmission is usually adopted, which has a large meshing gap, low positioning accuracy, and the circular frame will shake. Therefore, this solution adopts a large ring gear transmission, which effectively avoids the above problems and can extend the service life of the equipment.

[0024] In the squirrel cage type turning mechanism, a proximity switch is provided at a position of the bottom frame close to the bottom of the outer side surface of the circular frame, and an induction frame is adaptively provided at the upper part and the bottom of the outer side surface of the circular frame.

[0025] During the forward rotation or flipping of the squirrel cage, the induction frames located at the top and bottom of the circular frame will trigger the proximity switches respectively. The proximity switches are used to control the deceleration and stop of the rotation of the squirrel cage, limit the flipping angle of the equipment to 180°, and improve the automation of the equipment.

[0026] In the squirrel cage type turning mechanism, turning bumpers are provided at the upper and lower parts of the inner side of the circular frame, and a buffer matched with the position of the turning bumpers is provided on the bottom frame.

[0027] During the overturning process of the squirrel cage frame, the overturning bumpers and buffers at the upper and lower parts of the circular frame cooperate with each other to stop and buffer the overturning of the circular frame.

[0028] In the above-mentioned squirrel cage type turning mechanism, a protective net frame surrounding the squirrel cage frame is provided at the edge of the base frame, material inlets and outlets for material transportation are provided on the front and rear sides of the protective net frame, and maintenance doors are provided on the left and right sides of the protective net frame.

[0029] The protective net frame protects the equipment and staff, preventing foreign objects or personnel from falling into the working flip machine. Maintenance doors are set on the left and right sides of the protective net frame, and the maintenance doors can be opened to facilitate staff to maintain and repair the equipment.

[0030] Compared with the prior art, the technical effects of the present invention are:

[0031] First, the squirrel cage flipping mechanism uses the action of the linkage gear group, and the upper and lower clamping parts, the upper and lower cylinders and the linkage gear group itself are combined to form a linkage whole (i.e., a linkage clamping mechanism). When the upper and lower cylinders retract and pull the upper and lower clamping parts, the force is transmitted to the upper clamping part through the lower rack, the linkage gear, and the upper rack, and is pulled by the lower cylinder. It can be regarded as the lower cylinder also indirectly doing work on the lifting of the material at the same time. Therefore, the movement of the upper and lower clamping parts is synchronous, and the stroke is also the same, ensuring that the material falls precisely on the center position of the squirrel cage frame when clamped. At the same time, in the process of lifting the material, the upper and lower cylinders are fully utilized, thereby improving the utilization rate of the cylinders.

[0032] Second, the anti-dumping assembly of the squirrel cage flipping mechanism moves synchronously with the upper and lower clamping parts, and its relative position with the upper and lower clamping parts remains unchanged. Therefore, no matter how the shape and size of the material change, or whether the stopping height of the material meets expectations, when the upper and lower clamping parts clamp the material, the anti-dumping assembly can adapt better and provide a more stable and precise support effect.

[0033] Third, the squirrel cage flipping mechanism only needs to be equipped with an anti-dumping assembly on one side. The anti-dumping assembly and the upper and lower clamping parts provide support and limiting functions, and anti-dumping is achieved through the material's own gravity, without clamping the material through clamping mechanisms in four directions of up, down, left and right. This can effectively reduce the damage to the material contact surface caused by the clamping mechanism during the clamping process. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the actual installation of the squirrel cage flip mechanism.

[0035] Figure 2 This is the schematic diagram of the squirrel cage flip mechanism structure

[0036] Figure 3 It is a schematic diagram of the structure of the linkage gear set of the squirrel cage flipping mechanism.

[0037] Figure 4 It is a side view of the squirrel cage flip mechanism diagram.

[0038] Figure 5 It is a schematic diagram of the matching structure of the upper clamping parts and the power roller table of the squirrel cage type turning mechanism.

[0039] Figure 6It is a schematic diagram of the anti-dumping assembly structure of the squirrel cage type overturning mechanism.

[0040] Figure 7 It is a schematic diagram of the clamping arm structure of the squirrel cage type turning mechanism.

[0041] Figure 8 This squirrel cage flip mechanism Figure 2 Schematic diagram of area A in the middle.

[0042] Fig. 9 It is a schematic diagram of the structure of the proximity switch and the induction frame of the squirrel cage type turning mechanism.

[0043] Fig.10 It is a schematic diagram of the structure of the flipping bumper and buffer of the squirrel cage flipping mechanism.

[0044] In the figure, 1 is a base frame, 11 is a roller bracket, 12 is a roller, 13 is a squirrel cage drive motor, 131 is a first gear, 132 is a second gear, 2 is a squirrel cage frame, 21 is a circular frame, 22 is a beam, 221 is a linkage beam, 23 is a power roller, 231 is a roller motor, 232 is a roller, 233 is a clamping arm accommodating chamber, 24 is a linkage clamping mechanism, 241 is an upper clamping member, 241a is an upper clamping mounting plate, 242 is a lower clamping member, 242a is a lower clamping mounting plate, 243 is an upper cylinder, 244 is a lower cylinder, 245 is a linkage gear set, 246 is a linkage gear frame, 246a is a limit column, 2 46b is a gear mounting plate, 246c is a gear shaft, 246d is a support bearing, 247 is a linkage gear, 248 is an upper rack, 249 is a lower rack, 25 is an anti-dumping assembly, 251 is an anti-dumping cylinder, 252 is a guide assembly, 253 is a guard plate, 254 is an anti-dumping guide column, 255 is an anti-dumping guide rail, 261 is a clamping slider, 262 is a clamping slide rail, 271 is a clamping arm, 272 is a limit clamping block, 28 is a cylinder push seat, 281 is a floating joint, 3 is a proximity switch, 31 is an induction frame, 4 is a flip bumper, 41 is a buffer, 5 is a protective net frame, 51 is a material inlet and outlet, and 52 is a maintenance door. DETAILED DESCRIPTION

[0045] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0046] like Figure 1 As shown, a squirrel cage type turning mechanism comprises a base frame 1, a squirrel cage frame 2 and a protective net frame 5 arranged at the edge of the base frame 1 and surrounding the squirrel cage frame 2. The setting of the protective net frame 5 prevents foreign objects or personnel from falling into the working turning machine. The front and rear sides of the protective net frame 5 are provided with material inlets and outlets 51 for material transportation. The left and right sides of the protective net frame 5 are provided with maintenance doors 52. The maintenance doors 52 can be opened to facilitate the maintenance and repair of the equipment by the staff.

[0047] Further, such as Figure 2 As shown, a pair of roller brackets 11 are respectively provided on the front and rear sides of the base frame 1, and rollers 12 for supporting the squirrel cage frame 2 are provided on the roller brackets 11. The base frame 1 is also provided with a squirrel cage driving motor 13 for driving the squirrel cage frame 2 to rotate; the squirrel cage frame 2 includes two circular frames 21 arranged concentrically in front and back and a plurality of horizontally arranged beams 22 for connecting the two circular frames 21, and power rollers 23 and roller motors 231 for driving the power rollers 23 to operate are respectively provided on the upper and lower sides of the squirrel cage frame 2, and rollers 232 are arranged at intervals in the power roller 23, and the power roller 23 transports the material to a preset position.

[0048] As a preferred solution, Figure 2 , Figure 8 As shown, a first gear 131 is fixedly connected to the output shaft of the squirrel cage drive motor 13, and an annular second gear 132 meshing with the first gear 131 is fixedly connected to the outer side of the circular frame 21. In the prior art, chain sprocket transmission is usually adopted, which has a large meshing gap and low positioning accuracy, resulting in the shaking of the circular frame 21. Therefore, this solution adopts a large ring gear transmission, which effectively avoids the above problems and can extend the service life of the equipment.

[0049] Further, such as Figure 2 , Figure 3As shown, the cage frame 2 also includes a linkage clamping mechanism 24, which is arranged at the left side of the center of the cage frame 2 and will not interfere with the transportation of materials. A counterweight block is arranged on the crossbeam 22 at the right side of the center of the cage frame 2 to balance the weight of the left linkage clamping mechanism 24. The linkage clamping mechanism 24 includes an upper clamping member 241, a lower clamping member 242, an upper cylinder 243 with a rod head facing downward, a lower cylinder 244 with a rod head facing upward, and a linkage gear set 245. The upper end of the upper cylinder 243 is fixedly connected to the crossbeam 22, and the lower end is fixedly connected to the linkage gear set 245. The rod head extends out and is connected to the lower clamping member 242; the lower cylinder 244 The lower end is fixedly connected to the cross beam 22, the upper end is fixedly connected to the linkage gear set 245, and the rod head is extended and connected to the upper clamping piece 241; the linkage gear set 245 includes a horizontally arranged linkage cross beam 221, the two ends of the linkage cross beam 221 are respectively fixedly connected to the two circular frames 21, and a linkage gear frame 246 is fixedly connected to the middle part of the linkage cross beam 221. The linkage gear frame 246 is provided with a linkage gear 247, and the left and right sides of the linkage gear 247 are respectively meshed and transmission connected with the vertically arranged upper rack 248 and lower rack 249, the upper end of the upper rack 248 is fixedly connected to the upper clamping piece 241, and the lower end of the lower rack 249 is fixedly connected to the lower clamping piece 242. Under the action of the linkage gear set 245, the upper and lower clamping members 241, 242, the upper and lower cylinders 243, 244 and the linkage gear set 245 itself are combined to form a linkage whole, namely the linkage clamping mechanism 24. When the upper and lower cylinders 243, 244 retract and pull the upper and lower clamping members 241, 242, the lower clamping member 242 first contacts the material under the pull of the upper cylinder 243, and the upper and lower cylinders 243, 244 continue to retract, and the upper cylinder 243 pulls the lower clamping member 242 to lift the material. At this time, Under the action of the linkage gear set 245, the force is transmitted to the upper clamping member 241 through the lower rack 249, the linkage gear 247, and the upper rack 248, and is pulled by the lower cylinder 244. It can be regarded that the lower cylinder 244 is also indirectly doing work on lifting the material at the same time. Therefore, the movement of the upper and lower clamping members 241 and 242 is synchronous, and the stroke is also the same, ensuring that the material falls accurately on the center position of the squirrel cage frame 2 when clamped. At the same time, in the process of lifting the material, the upper and lower cylinders are fully utilized, thereby improving the utilization rate of the cylinders.

[0050] As a preferred solution, the linkage gear frame 246 includes two horizontally arranged limit columns 246a that are perpendicular to the linkage cross beam 221. One end of the two limit columns 246a is fixedly connected to the linkage cross beam 221, and the other end is connected to the linkage cross beam 221 through a gear mounting plate 246b. A gear shaft 246c that passes through the gear mounting plate 246b is provided in the middle of the gear mounting plate 246b. One end of the gear shaft 246c that faces the linkage cross beam 221 is connected to the linkage gear 247 through a bearing. The linkage gear 247 and the upper and lower racks 248 and 249 are all located between the two gear limit columns 246a. The two limit columns A support bearing 246d is provided on 246a, and the outer circumference of the support bearing 246d is in contact with the upper and lower racks 248, 249. The limit column 246a is located on the left and right sides of the upper and lower racks 248, 249 for limiting. In order to avoid loosening of the engagement between the upper and lower racks 248, 249 and the linkage gear 247 during operation, and at the same time to reduce the friction between the limit column 246a and the rack which leads to a decrease in transmission efficiency, a support bearing 246d is provided on the limit column 246a. The outer circumference of the support bearing 246d is in contact with the rack. When the upper and lower racks 248, 249 move up and down, the support bearing 246d rotates accordingly.

[0051] Further, such as Figure 5 , Figure 6As shown, an anti-dumping assembly 25 is provided on the outer sides of the upper and lower clamping members 241, 242. The anti-dumping assembly 25 includes an anti-dumping cylinder 251 and a guide assembly 252 which are horizontally arranged and fixedly connected to the upper and lower clamping members 241, 242. The rod head of the anti-dumping cylinder 251 faces the squirrel cage frame 2 and is fixedly connected to a guard plate 253. The guard plate 253 is parallel to the axis of the squirrel cage frame 2; the guide assembly 252 includes an anti-dumping guide column 254 and an anti-dumping guide rail 255 matched therewith. The end of the anti-dumping guide column 255 facing the squirrel cage frame 2 is fixedly connected to the guard plate 253. When the material is lifted and fixed at the center of the cage frame 2 under the action of the linkage clamping mechanism 24, the anti-dumping assembly 25 located on one side is started, and the anti-dumping cylinder 254 pushes the guard plate 253 forward, and under the support and guidance of the guide component 252, until the guard plate 253 is against the material, and then the cage frame 2 begins to flip, and the anti-dumping assembly 25 moves synchronously with the upper and lower clamping members 241, 242, and its relative position with the upper and lower clamping members 241, 242 remains unchanged. Therefore, no matter how the shape and size of the material change, and whether the stopping height of the material meets expectations, when the upper and lower clamping members 241, 242 clamp the material, the anti-dumping assembly 25 can better adapt and provide a more stable and more precise support effect. In addition, the present solution only needs to set the anti-dumping assembly 25 on one side. When the squirrel cage frame 2 flips the material 180° in the direction of the side with the guard plate 253 downward and the side without the guard plate 253 upward, the anti-dumping assembly 25 and the upper and lower clamping members 241, 242 provide support and limiting functions, and anti-dumping is achieved through the gravity of the material itself, rather than clamping the material through the clamping mechanisms in the four directions of up, down, left and right as in the prior art. This can effectively reduce the damage to the material contact surface caused by the clamping mechanism during the clamping process.

[0052] As a preferred solution, Figure 4 , Figure 5As shown, the upper clamping member 241 includes a vertically arranged upper clamping mounting plate 241a, the anti-dumping cylinder 251 and the guide assembly 252 are both fixedly connected to the upper clamping mounting plate 241a facing the outside of the squirrel cage frame 2, and the anti-dumping guide column 254 and the rod head of the anti-dumping cylinder 255 penetrate the upper clamping mounting plate 241a; the lower clamping member 242 includes a vertically arranged lower clamping mounting plate 242a, the anti-dumping cylinder 251 and the guide assembly 252 are both fixedly connected to the lower The clamping mounting plate 242a faces the outer side of the squirrel cage frame 2, and the rod heads of the anti-dumping guide column 254 and the anti-dumping cylinder 255 penetrate the lower clamping mounting plate 242a; the left and right sides of the upper and lower clamping mounting plates 241a, 242a are fixedly connected with clamping slide blocks 261, and the inner side of the circular frame 21 is vertically provided with clamping slide rails 262 adapted to the clamping slide blocks 261, and the upper and lower clamping mounting plates 241a, 242a can slide up and down along the clamping slide rails 262. The anti-dumping cylinder 251, the guide assembly 252, the slide block 261 and other components are fixed on the same side by the upper and lower clamping mounting plates 241a, 242a to form an integral body, and the integral body is guided to slide synchronously by the slide rails 262, and the length of the connecting part between the rack and the upper and lower clamping mounting plates 241a, 242a can also be increased, thereby increasing the connection strength of the rack. Only allowing the rod head of the anti-dumping cylinder 251 and the guide column of the guide assembly 252 to pass through the upper and lower clamping mounting plates 241a, 242a can reduce the number of other parts of the anti-dumping cylinder 251 and the guide assembly 252 entering the clamping area in the squirrel cage frame 2, reduce the possibility of mutual interference between components, and optimize the overall structural layout.

[0053] Further, such as Figure 5 , Figure 7 As shown, the upper and lower clamping mounting plates 241a, 242a are provided with a plurality of spaced clamping arms 271 on one side facing the squirrel cage frame 2, one end of the clamping arm 271 is fixedly connected to the upper and lower clamping mounting plates 241a, 242a, and the other end is provided with a protruding limiting clamp block 272, and a clamping arm accommodating cavity 233 adapted to the clamping arm 271 is provided on the power roller 23, the width of the clamping arm 271 is smaller than the spacing between adjacent rollers 232, the clamping arm 271 can be accommodated in the clamping arm accommodating cavity 233, and the bottom / top of the upper and lower parts of the clamping arm 271 are respectively higher / lower than the contact horizontal plane between the roller 232 and the material. During the flipping process, the upper and lower clamping arms 271 are responsible for limiting and supporting the material, and the limiting clamp block 272 at the end of the clamping arm 271 can further prevent the material from slipping and tipping. In the initial state or when the turning is completed, the upper and lower clamping arms 271 can be accommodated between two adjacent rollers, and the upper and lower clamping arms 271 will not protrude from the contact surface between the roller 232 and the material, and will not affect the transportation of the material.

[0054] Further, such as Figure 4 , Figure 5As shown, the upper and lower clamping members 241, 242 are respectively provided with cylinder push seats 28 adapted to the upper and lower cylinders 243, 244, and the cylinder push seats 28 are provided with floating joints 281, which are connected to the rod heads of the upper and lower cylinders 243, 244 through the floating joints 281. The cylinder push seats 28 are used to connect with the upper and lower cylinders 243, 244, but during the operation of the equipment, vibrations may inevitably occur, which may cause the rod heads of the upper and lower cylinders 243, 244 to tilt. Working in this state is likely to damage the rod of the cylinder and the inside of the cylinder, so a floating joint 281 is provided between the cylinder rod head and the cylinder push seat, which can effectively prevent the cylinder rod from working in a tilted state.

[0055] Further, such as Fig. 9 As shown, the bottom frame 1 is provided with a proximity switch 3 at a position close to the bottom of the outer side of the circular frame 21, and the upper and bottom of the outer side of the circular frame 21 are adapted to be provided with a sensing frame 31. During the forward rotation or flipping process of the squirrel cage frame 2, the sensing frame 31 located at the upper and bottom of the circular frame 21 will trigger the proximity switch 3 respectively, and the proximity switch 3 is used to control the deceleration and stop of the rotation of the squirrel cage frame 2, limit the flip angle of the equipment to 180°, and improve the automation degree of the equipment.

[0056] Further, such as Fig.10 As shown, the upper and lower parts of the inner side of the circular frame 21 are provided with a flip bumper 4, and a buffer 41 is provided on the bottom frame 1 to match the position of the flip bumper 4. The flip bumper 4 and the buffer 41 at the upper and lower parts of the circular frame 21 cooperate with each other to stop and buffer the flipping of the circular frame 21.

[0057] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope defined by the claims of the present invention.

Claims

1. A squirrel cage type turning mechanism, comprising a base frame (1) and a squirrel cage frame (2), wherein a pair of roller brackets (11) are respectively arranged on the front and rear sides of the base frame (1), and rollers (12) for supporting the squirrel cage frame (2) are arranged on the roller brackets (11), and a squirrel cage driving motor (13) for driving the squirrel cage frame (2) to rotate is also arranged on the base frame (1); the squirrel cage frame (2) comprises two circular frames (21) arranged concentrically in front and back and a plurality of horizontal beams (22) for connecting the two circular frames (21), and power rollers (23) and roller motors (231) for driving the power rollers (23) are respectively arranged on the upper and lower sides of the squirrel cage frame (2), and rollers (232) are arranged in intervals in the power rollers (23), characterized in that: The squirrel cage frame (2) further comprises a linkage clamping mechanism (24), the linkage clamping mechanism (24) comprising an upper clamping member (241), a lower clamping member (242), an upper cylinder (243) with a rod head facing downward, a lower cylinder (244) with a rod head facing upward, and a linkage gear set (245); the upper end of the upper cylinder (243) is fixedly connected to the crossbeam (22), the lower end is fixedly connected to the linkage gear set (245), and the rod head extends out to connect to the lower clamping member (242); the lower end of the lower cylinder (244) is fixedly connected to the crossbeam (22), the upper end is fixedly connected to the linkage gear set (245), and the rod head extends out to connect to the upper clamping member (241); The linkage gear set (245) comprises a linkage crossbeam (221) arranged horizontally, the two ends of the linkage crossbeam (221) are respectively fixedly connected to the two circular frames (21), the middle part of the linkage crossbeam (221) is fixedly connected to a linkage gear frame (246), the linkage gear frame (246) is provided with a linkage gear (247), the left and right sides of the linkage gear (247) are respectively meshed and transmission-connected with an upper rack (248) and a lower rack (249) arranged vertically, the upper end of the upper rack (248) is fixedly connected to an upper clamping member (241), and the lower end of the lower rack (249) is fixedly connected to a lower clamping member (242).

2. A squirrel cage turning mechanism according to claim 1, characterized in that: An anti-dumping assembly (25) is provided on the same side of the upper and lower clamping members (241, 242), the anti-dumping assembly (25) comprising an anti-dumping cylinder (251) and a guide assembly (252) which are arranged horizontally and are fixedly connected to the upper and lower clamping members (241, 242), the rod head of the anti-dumping cylinder (251) facing the inside of the squirrel cage frame (2) and a guard plate (253) is fixedly connected to the rod head, and the guard plate (253) is parallel to the axis of the squirrel cage frame (2); the guide assembly (252) comprises an anti-dumping guide column (254) and an anti-dumping guide rail (255) matched therewith, and one end of the anti-dumping guide column (255) facing the inside of the squirrel cage frame (2) is fixedly connected to the guard plate (253).

3. The squirrel cage turning mechanism according to claim 1, characterized in that: The linkage gear frame (246) comprises two horizontally arranged limiting columns (246a) perpendicular to the linkage cross beam (221); one end of the two limiting columns (246a) is fixedly connected to the linkage cross beam (221), and the other end is connected as a whole through a gear mounting plate (246b); a gear shaft (246c) penetrating the gear mounting plate (246b) is provided in the middle of the gear mounting plate (246b); one end of the gear shaft (246c) facing the linkage cross beam (221) is connected to the linkage gear (247) through a bearing; the linkage gear (247) and the upper and lower racks (248, 249) are all located between the two gear limiting columns (246a); and the two limiting columns (246a) are both provided with support bearings (246d) whose outer circumferences are in contact with the upper and lower racks (248, 249).

4. The squirrel cage turning mechanism according to claim 2, characterized in that: The upper clamping member (241) comprises an upper clamping mounting plate (241a) arranged vertically, the anti-dumping cylinder (251) and the guide assembly (252) are both fixedly connected to the side of the upper clamping mounting plate (241a) facing the outside of the squirrel cage frame (2), and the rod heads of the anti-dumping guide column (254) and the anti-dumping cylinder (255) penetrate the upper clamping mounting plate (241a); The lower clamping member (242) comprises a lower clamping mounting plate (242a) arranged vertically, the anti-dumping cylinder (251) and the guide assembly (252) are both fixedly connected to the side of the lower clamping mounting plate (242a) facing the outside of the squirrel cage frame (2), and the rod heads of the anti-dumping guide column (254) and the anti-dumping cylinder (255) penetrate the lower clamping mounting plate (242a); A clamping slide block (261) is fixedly connected to both sides of the upper and lower clamping mounting plates (241a, 242a), and a clamping slide rail (262) adapted to the clamping slide block (261) is vertically arranged inside the circular frame (21), and the upper and lower clamping mounting plates (241a, 242a) can slide up and down along the clamping slide rail (262).

5. The squirrel cage turning mechanism according to claim 4, characterized in that: The upper and lower clamping mounting plates (241a, 242a) are each provided with a plurality of spaced clamping arms (271) on one side facing the squirrel cage frame (2); one end of the clamping arm (271) is fixedly connected to the upper and lower clamping mounting plates (241a, 242a); the other end of the clamping arm (271) is provided with a protruding limit clamping block (272); a clamping arm accommodating cavity (233) adapted to the clamping arm (271) is provided on the power roller conveyor (23); the width of the clamping arm (271) is smaller than the spacing between adjacent rollers (232); the clamping arm (271) can be accommodated in the clamping arm accommodating cavity (233); and the bottom / top of the upper and lower parts of the clamping arm (271) are respectively higher / lower than the contact horizontal plane between the roller (232) and the material.

6. The squirrel cage turning mechanism according to claim 1, characterized in that: The upper and lower clamping members (241, 242) are respectively provided with cylinder push seats (28) adapted to the upper and lower cylinders (243, 244); the cylinder push seats (28) are provided with floating joints (281) and connected to the rod heads of the upper and lower cylinders (243, 244) via the floating joints (281).

7. The squirrel cage turning mechanism according to claim 1, characterized in that: A first gear (131) is fixedly connected to the output shaft of the squirrel cage drive motor (13), and an annular second gear (132) meshing with the first gear (131) is fixedly connected to the outside of the circular frame (21).

8. The squirrel cage turning mechanism according to claim 1, characterized in that: A proximity switch (3) is provided on the bottom frame (1) close to the bottom of the outer side surface of the circular frame (21), and an induction frame (31) is adaptively provided on the upper part and the bottom of the outer side surface of the circular frame (21).

9. The squirrel cage turning mechanism according to claim 1, characterized in that: The upper and lower parts of the inner side of the circular frame (21) are both provided with a turning bump block (4), and a buffer (41) adapted to the position of the turning bump block (4) is provided on the bottom frame (1).

10. The squirrel cage turning mechanism according to claim 1, characterized in that: The edge of the base frame (1) is provided with a protective net frame (5) surrounding the squirrel cage frame (2), the front and rear sides of the protective net frame (5) are provided with material inlets and outlets (51) for material transportation, and the left and right sides of the protective net frame (5) are provided with maintenance doors (52).

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