V-shaped workpiece turnover device

Abstract

The utility model provides a kind of V-shaped workpiece turnover device, because having clamping turnover mechanism, lifting mechanism and conveying mechanism, therefore V-shaped workpiece can be conveyed to the below clamping turnover mechanism, lifting mechanism drives clamping turnover mechanism to descend or drives conveying mechanism to ascend, the height of V-shaped workpiece is adjusted to be adapted with clamping turnover mechanism, after clamping its length direction two ends by clamping turnover mechanism, lifting mechanism drives clamping turnover mechanism or conveying mechanism to return to original height again, so that V-shaped workpiece can be turned over without interfering with other structures of device, in this way, it is not necessary to hold the outer circumferential surface of workpiece to realize turnover, it will not cause damage to the component pasted and compressed on the side of V-shaped workpiece, and V-shaped workpiece can be turned over at appropriate height, avoid V-shaped workpiece to meet bracket or other mechanism components in turnover process, to realize stable turnover.

Description

Technical Field

[0001] This utility model belongs to the technical field of liquefied natural gas (LNG) cargo storage production equipment, specifically relating to a V-shaped workpiece flipping device. Background Technology

[0002] Liquefied natural gas (LNG) carriers are used to transport LNG and are equipped with multiple large cargo tanks. To stably store large quantities of LNG and maintain it at a low temperature of around -160°C, the cargo tanks require not only sufficient structural strength but also excellent insulation. Cargo tanks come in various shapes, one type being a roughly rectangular or polygonal membrane-type tank. The construction of this type requires a V-shaped component, shaped like a long V-shape, to form the edges of the rectangular or polygonal structure. This V-shaped component has a multi-layered composite structure. During production, multiple layers of components are glued and pressed together on one side of the V-shaped body. Then, the semi-finished component is flipped over, and multiple layers of components are glued and pressed together on the other side of the V-shaped body.

[0003] Because of the very large size of this V-shaped workpiece, conventional flipping devices are difficult to use for stable flipping. Although there are some large flipping devices for large workpieces, these devices generally require gripping the outer circumference of the workpiece before flipping it. However, since both sides of the aforementioned V-shaped workpiece require bonding and pressing components, such large flipping devices cannot be used.

[0004] Furthermore, since there are various V-shaped workpieces with different angles, such as 90° and 135°, the existing large-scale flipping devices are often unable to adapt to the production of V-shaped workpieces with different angles. This requires the corresponding installation of multiple large-scale flipping devices, which is costly and occupies a large area. Alternatively, when switching products, workers have to manually disassemble and adjust the large-scale flipping equipment to adapt it to V-shaped workpieces with different angles. This is time-consuming and labor-intensive, and the equipment adjustment time accounts for too high a proportion of the total production time, affecting production efficiency. Utility Model Content

[0005] This utility model is made to solve at least one of the above-mentioned problems, and its purpose is to provide a flipping device that can stably flip large V-shaped workpieces and is applicable to V-shaped workpieces at different angles. The technical solution adopted by this utility model is as follows:

[0006] This utility model provides a V-shaped workpiece flipping device for flipping V-shaped workpieces constituting liquefied natural gas cargo tanks. The device comprises: a clamping and flipping mechanism for clamping both ends of the V-shaped workpiece along its length and flipping it; a conveying mechanism for conveying the V-shaped workpiece to be flipped to below the clamping and flipping mechanism and for outputting the flipped V-shaped workpiece; and a lifting mechanism for lifting or lowering the clamping and flipping mechanism or the conveying mechanism, so that the clamping and flipping mechanism can clamp the V-shaped workpiece placed on the conveying mechanism, and flip the V-shaped workpiece while it is separated from the conveying mechanism.

[0007] The V-shaped workpiece flipping device provided by this utility model may also have the following technical features, wherein the clamping and flipping mechanism includes: an active support flipping part for supporting one end of the V-shaped workpiece in the length direction and driving the V-shaped workpiece to flip; a passive support flipping part for supporting the V-shaped workpiece and the other end in the length direction and moving accordingly during the flipping process; and a translation drive part for driving the active support flipping part and / or the passive support flipping part to translate, so that they move closer to each other or further away from each other, thereby clamping or releasing the V-shaped workpiece.

[0008] The V-shaped workpiece flipping device provided by this utility model may also have the following technical features: the two end faces of the V-shaped workpiece in the length direction are V-shaped; the active support flipping part includes: a pair of first support plates, arranged in a V-shape, for supporting one end face; a first angle adjustment component for adjusting the included angle of the pair of first support plates; and a flipping drive component for driving the pair of first support plates and the first angle adjustment component to rotate as a whole, thereby causing the V-shaped workpiece to flip; the passive support flipping part includes: a pair of second support plates, arranged in a V-shape, for supporting the other end face; a second angle adjustment component for adjusting the included angle of the pair of second support plates; and a flipping follow-up reset component for causing the pair of second support plates and the second angle adjustment component to move as a whole during flipping, and for rotating and resetting the pair of second support plates and the second angle adjustment component after flipping.

[0009] The V-shaped workpiece flipping device provided by this utility model may also have the following technical features, wherein both the first angle adjustment component and the second angle adjustment component include: two rotating rods, respectively fixed to a pair of first support plates or a pair of second support plates, and one end of each rotating rod is a rotating shaft; two connecting rods, one end of which is rotatably connected to the middle of the two rotating rods respectively; a connecting plate, the other ends of the two connecting rods being rotatably connected to the lower part of the connecting plate respectively; a slider nut, fixed to the connecting plate; a lead screw, the slider nut being disposed on the lead screw; a transmission component; and an angle adjustment motor, which drives the lead screw to rotate through the transmission component.

[0010] The V-shaped workpiece flipping device provided by this utility model may also have the following technical features, wherein the rotating rod includes: a main rod portion, which is straight and one end of which is the rotating shaft; a secondary rod portion, which is straight and one end of which is connected to the middle of the main rod portion; and a connecting block portion, which is block-shaped and connected to the middle of the main rod portion and is closer to the rotating shaft than the secondary rod portion. The main rod portion and the secondary rod portion have multiple mounting holes, the first support plate and the second support plate have multiple holes corresponding to the mounting holes, the connecting block portion has a connecting hole, and the other end of the connecting rod is rotatably connected to the connecting hole via a connector.

[0011] The V-shaped workpiece flipping device provided by this utility model may also have the following technical features: the first support plate and the second support plate are both rectangular plates with missing corners, and each includes a rigid support plate portion and an elastic pad layer, with the pad layer facing the V-shaped workpiece.

[0012] The V-shaped workpiece flipping device provided by this utility model may also have the following technical features: the flipping follow-up reset assembly further includes a second mounting plate, the second support plate and the second angle adjustment assembly are both disposed on the second mounting plate, and the flipping follow-up reset assembly includes: a rotating shaft, one end of which is fixed to the two mounting plates; a gear and rack transmission assembly, including a gear and a rack disposed at the other end of the rotating shaft; an electromagnetic clutch for engaging or disengaging the gear and the rack; a floating joint; and a reset cylinder, the piston rod of which is connected to the rack through the floating joint for driving the rack to move, thereby driving a pair of second support plates to rotate and reset through the gear and the rotating shaft.

[0013] The V-shaped workpiece flipping device provided by this utility model may also have the following technical features: the flipping drive assembly further includes a first mounting plate, the first support plate and the first angle adjustment assembly are both mounted on the first mounting plate, and the flipping drive assembly includes: a rotating shaft, one end of which is fixed to the first mounting plate; a belt drive assembly; and a flipping motor and a reducer, which drive the rotating shaft to rotate through the belt drive assembly.

[0014] The V-shaped workpiece flipping device provided by this utility model may also have the following technical features: the active support flipping part further includes: a first support arm, wherein the first support plate, the first angle adjustment component, and the flipping drive component are all disposed in the lower middle part of the first support arm; the passive support flipping part further includes: a second support arm, wherein the second support plate, the second angle adjustment component, and the flipping drive component are all disposed in the lower middle part of the second support arm; both the first support arm and the second support arm have through holes in their upper parts; and the translation drive part includes: a translation support rod, wherein both the first support arm and the second support arm are movably sleeved on the translation support rod; a translation guide component for guiding the movement of the first support arm and the second support arm; a translation cylinder for driving one of the first support arm and the second support arm to translate; and a translation motor and a translation transmission component for driving the other of the first support arm and the second support arm to translate.

[0015] The V-shaped workpiece flipping device provided by this utility model may also have the following technical features, wherein the conveying mechanism includes: a chain conveying mechanism for conveying a bracket carrying the V-shaped workpiece; and a pair of guide bars respectively disposed on both sides of the chain conveying mechanism, with their ends folded outwards for guiding the entry and movement of the bracket; and a lifting mechanism disposed above the clamping and flipping mechanism for driving the clamping and flipping mechanism to lift and lower.

[0016] The V-shaped workpiece flipping device provided by this utility model may also have the following technical features, wherein the conveying mechanism includes: a chain conveying mechanism for conveying a bracket carrying the V-shaped workpiece; and a pair of guide bars respectively disposed on both sides of the chain conveying mechanism, with their ends folded outwards for guiding the entry and movement of the bracket; and a lifting mechanism disposed below the conveying mechanism for driving the conveying mechanism to lift.

[0017] The function and effect of the utility model:

[0018] According to the V-shaped workpiece flipping device provided by this utility model, since it has a clamping and flipping mechanism, a lifting mechanism, and a conveying mechanism, it can transport the V-shaped workpiece to the area below the clamping and flipping mechanism. After the lifting mechanism drives the clamping and flipping mechanism to descend to a certain height or drives the conveying mechanism to rise to a certain height, the V-shaped workpiece can be positioned at the height that the clamping and flipping mechanism can clamp. After clamping both ends of the workpiece in the length direction by the clamping and flipping mechanism, the lifting mechanism drives the clamping and flipping mechanism and the clamped V-shaped workpiece to rise to the original height or drives the conveying mechanism to descend to the original height, so that the V-shaped workpiece can be completely separated from the conveying mechanism. Moreover, there will be no interference with the conveying mechanism during the flipping process. The clamping and flipping mechanism then flips the clamped V-shaped workpiece, and after flipping, it descends to the pick-and-place height to place the workpiece. In this way, it is not necessary to hold the outer circumference of the workpiece to achieve the flipping, which will not damage the components that are pasted and pressed on the side of the V-shaped workpiece. Furthermore, the V-shaped workpiece can be flipped at an appropriate height, avoiding the V-shaped workpiece from hitting the bracket or other mechanism parts during the flipping process, thereby achieving stable flipping. Attached Figure Description

[0019] Figure 1 This is a perspective view of the V-shaped workpiece flipping device in Embodiment 1 of this utility model;

[0020] Figure 2 This is a side view of the V-shaped workpiece flipping device in Embodiment 1 of this utility model;

[0021] Figure 3 This is a perspective view of the V-shaped workpiece flipping device in use in Embodiment 1 of this utility model;

[0022] Figure 4 This is a perspective view of the active support flipping part in Embodiment 1 of this utility model;

[0023] Figure 5 This is a perspective view of a portion of the active support flipping section in Embodiment 1 of this utility model;

[0024] Figure 6 This is a perspective view of the active support flipping part from another angle in Embodiment 1 of this utility model;

[0025] Figure 7 This is a perspective view of the passive support flipping part in Embodiment 1 of this utility model;

[0026] Figure 8 This is a perspective view of a portion of the passive support flipping section in Embodiment 1 of this utility model;

[0027] Figure 9 This is a perspective view of the passive support flipping part from another angle in Embodiment 1 of this utility model;

[0028] Figure 10This is a perspective view of the V-shaped workpiece flipping device in Embodiment 2 of this utility model;

[0029] Figure 11 This is a side view of the V-shaped workpiece flipping device in Embodiment 2 of this utility model.

[0030] Figure label:

[0031] V-shaped workpiece flipping device 100; frame 10; conveying mechanism 20; chain conveying mechanism 21; guide bar 22; clamping flipping mechanism 30; active support flipping part 32; first support plate 321; support plate part 3211; pad 3212; first angle adjustment assembly 322; belt drive assembly 3221; lead screw 3222; slider nut 3223; connecting plate 3224; connecting rod 3225; rotating rod 3226; angle adjustment motor 3229; flipping drive assembly 323; flipping motor 3231; reducer 3232; belt drive assembly 3233; rotating shaft 3234; first mounting bracket 324; first support arm 325; passive support flipping part 33; second support plate 331; second angle adjustment assembly 332; belt drive assembly 3321; lead screw 3322; Slider nut 3323; Connecting plate 3324; Connecting rod 3325; Rotating rod 3326; Main rod part 32261; Secondary rod part 32262; Connecting block part 32263; Angle adjustment motor 3329; Flip follow-up reset assembly 333; Reset cylinder 3331; Gear and rack transmission assembly 3332; Gear 33321; Rack 33322; Adapter plate 33323; Floating joint 3335; Electromagnetic clutch 3336; Second mounting bracket 334; Second support arm 335; Translation drive part 31; Translation support rod 311; Translation guide assembly 312; Translation cylinder 313; Translation motor 314; Translation transmission assembly 315; Lifting mechanism 40; Lifting motor 41; Scissor lift assembly 42; V-shaped workpiece 200; Bracket 300. Detailed Implementation

[0032] To make the technical means, creative features, objectives and effects of this utility model easy to understand, the following describes the V-shaped workpiece flipping device of this utility model in detail with reference to the embodiments and accompanying drawings.

[0033] <Example 1>

[0034] Figure 1 This is a perspective view of the V-shaped workpiece flipping device in this embodiment. Figure 2 This is a side view of the V-shaped workpiece flipping device in this embodiment. Figure 3 This is a perspective view of the V-shaped workpiece flipping device in use in this embodiment. Figure 3 The image also shows a V-shaped workpiece to be flipped and a tray.

[0035] like Figures 1 to 3 As shown, the V-shaped workpiece flipping device 100 includes a frame 10, a conveying mechanism 20, a clamping and flipping mechanism 30, and a lifting mechanism 40.

[0036] The frame 10 is used to install and support other mechanisms and the V-shaped workpiece to be flipped. It is frame-shaped and consists of multiple metal square rods. Its multiple legs are fixed to the ground to prevent shaking or even tipping during the flipping process.

[0037] The conveying mechanism 20 is located at the lower part of the frame 10 and is used in conjunction with other conveying devices to move the V-shaped workpiece 200 to be flipped and the bracket 300 into the frame 10 for flipping the V-shaped workpiece 200, wherein the V-shaped workpiece 200 is placed on the bracket 300 with its opening facing upward or downward. Other conveying devices may be, for example, matching conveying trolleys or similar conveying devices in another processing equipment located adjacent to the V-shaped workpiece flipping device 100, which push the V-shaped workpiece 200 and the bracket 300 toward the conveying mechanism 20, while the conveying mechanism 20 receives them.

[0038] The conveying mechanism 20 includes a chain-type conveying mechanism 21 and a pair of guide bars 22 disposed on both sides thereof. The chain-type conveying mechanism 21 can adopt a corresponding structure in the prior art, namely, including a conveying drive motor 211, multiple gears driven by the motor through a linkage shaft, and two conveying chains mounted on the gears and arranged parallel to each other, with the conveying chains arranged along the length of the frame 10. The pair of guide bars 22 are respectively disposed on the outer sides of the two conveying chains to guide the tray into the machine and to provide guidance when the chain-type conveying mechanism 21 conveys the tray. The guide bars 22 are elongated, with bent portions at both ends, and the ends of the pair of guide bars 22 bend outwards in opposite directions.

[0039] The clamping and flipping mechanism 30 is used to clamp the two ends of the V-shaped workpiece 200 along its length and flip it.

[0040] The clamping and flipping mechanism 30 includes an active support flipping part 32, a passive support flipping part 33, and a translation drive part 31.

[0041] The active support flipping part 32 and the passive support flipping part 33 move towards each other under the drive of the translation drive part 31, cooperating with each other to abut against the end faces of the V-shaped workpiece 200 at both ends along its length, thereby clamping the V-shaped workpiece 200 and further driving it to flip. During the flipping process, the active support flipping part 32 drives the V-shaped workpiece to flip, while the passive support flipping part 33 cooperates in a driven manner.

[0042] Figure 4 This is a perspective view of the active support flipping part in this embodiment. Figure 5This is a perspective view of the active support flipping section structure in this embodiment. Figure 5 The first support plate is omitted in the text; Figure 6 This is a perspective view of the active support flipping part at another angle in this embodiment.

[0043] like Figures 4 to 6 As shown, the active support flipping part 32 includes a pair of first support plates 321, a first angle adjustment component 322, a flipping drive component 323, a first mounting bracket 324, and a first support arm 325.

[0044] The first support plate 321 is generally rectangular with two corners missing, and a pair of first support plates 321 are arranged opposite each other with the smaller corner missing end. Each first support plate 321 includes a support plate part 3211 and a pad layer 3212 stacked along its thickness direction. The support plate part 3211 is a rigid plate, and the pad layer 3212 has a certain degree of elasticity. In use, the side with the pad layer 3212 faces the V-shaped workpiece to better clamp the workpiece and avoid damage to it.

[0045] Angle adjustment assembly 322 is used to adjust the included angle between a pair of first support plates 321, enabling it to accommodate V-shaped workpieces at different angles. Angle adjustment assembly 322 includes an angle adjustment motor 3229, a transmission component, and a guide component. The transmission component includes a belt drive assembly 3221, a lead screw 3222, a slider nut 3223, a connecting plate 3224, a connecting rod 3225, and a rotating rod 3226. The guide component includes a guide rail 3227 and a slider (not shown, obscured by other structures).

[0046] The belt drive assembly 3221 includes a driving gear, a driven gear, and a belt. The driving gear is mounted on the output shaft of the angle adjustment motor 3229. The driven gear is coaxially mounted with the lead screw 3222, and the two can rotate synchronously. The belt is fitted onto the driving gear and the driven gear. The lead screw 3222 extends vertically. A slider nut 3223 is fitted onto the lead screw 3222 and fixed to the connecting plate 3224. One end of each of the two connecting rods 3225 is rotatably connected to one of the two corners of the lower part of the connecting plate 3224, and the other end is connected to the rotating rod 3226.

[0047] The rotating rod 3226 includes a main rod portion 32261, a secondary rod portion 32262, and a connecting block portion 32263. Both the main rod portion 32261 and the secondary rod portion 32262 are elongated rods with multiple mounting holes distributed along their length. One end of the secondary rod portion 32262 is connected to the middle of the main rod portion 32261, forming a T-shape. The connecting block portion 32263 is trapezoidal and is connected to the main rod portion 32261 near one end. A connecting hole is provided on the connecting block portion 32263, and the other end of the connecting rod 3225 is connected to the connecting block portion 32263 via a connector. The first support plate 321 is also provided with multiple mounting holes corresponding to the mounting holes on the main rod 32261 and the auxiliary rod 32262. It is fixed to the rotating rod 3226 by multiple fasteners, so that the rotating rod 3226 can stably drive the first support plate 321 to rotate about one end of the rotating rod 3226 as the axis of rotation.

[0048] The guide rail is fixed on the first mounting bracket 324 and extends vertically. The slider is slidably fitted onto the guide rail and fixed with the slider nut 3223.

[0049] Angle adjustment motor 323 drives the first support plate 321 to rotate via transmission component 322, thereby adjusting the included angle between the two first support plates 321 to accommodate V-shaped workpieces at different angles. Specifically, motor 323 drives the drive gear to rotate, which in turn drives the driven gear and lead screw 3222 to rotate via belt. This causes the lead screw 3222 to move the slider nut 3223 up or down, and the connecting plate 3224 moves up or down accordingly, driving the rotating rod 3226 to rotate via connecting rod 3225. This causes the two first support plates 321 to rotate in the same direction or in opposite directions, adjusting the included angle between them.

[0050] A pair of first support plates 321 and an angle adjustment component 322 are both mounted on the first mounting frame 324. The flipping drive component 323 is used to drive the first mounting frame 324 to rotate, thereby causing the pair of first support plates 321 to rotate as a whole, which in use drives the clamped V-shaped workpiece to flip.

[0051] The flip drive assembly 323 includes a flip motor 3231, a reducer 3232, a belt drive assembly 3233, a rotating shaft 3234, and bearings.

[0052] The reducer 3232 is fixed to one side of the first support arm 325, and the tilting motor 3231 is positioned above the reducer 3232. The belt drive assembly 3233 includes a driving gear, a driven gear, and a belt. The driving gear is mounted on the output shaft of the reducer 3232, and the driven gear is coaxially mounted with the rotating shaft 3234 and can rotate synchronously. The belt is fitted onto the driving gear and the driven gear. One end of the rotating shaft 3234 is connected to the driven gear, and the other end is fixed to the middle of the first mounting plate 324.

[0053] The flipping motor 3231 drives the drive gear to rotate via the reducer 3232, which in turn drives the driven gear and the rotating shaft 3234 via the belt, thereby driving the first mounting plate 324 and the pair of first support plates 321 mounted on it to rotate as a whole. Thus, when in use, it can drive the clamped V-shaped workpiece 200 to rotate and flip the V-shaped workpiece 200.

[0054] Figure 7 This is a perspective view of the passively supported flipping part in this embodiment. Figure 8 This is a perspective view of the passive support flipping section structure in this embodiment. Figure 9 This is a perspective view of the passive support flipping part from another angle in this embodiment.

[0055] like Figures 7 to 9 As shown, the passive support flipping part 33 includes a pair of second support plates 331, a second angle adjustment component 332, a flipping follow-up reset component 333, a second mounting bracket 334, and a second support arm 335.

[0056] The structures of the second support plate 331, the second angle adjustment component 332, the second mounting bracket 324, and the second support arm 335 are basically the same as those of the first support plate 321, the second angle adjustment component 332, the first mounting bracket 324, and the first support arm 325. That is, the second support plate 331 also includes a support plate part and a pad layer; the second angle adjustment component 332 also includes a belt drive component 3321, a lead screw 3322, a slider nut 3323, a connecting plate 3324, a connecting rod 3325, a rotating rod 3326, and an angle adjustment motor 3229. It drives a pair of second support plates 332 to rotate in the same way to adjust their included angle, so it will not be described in detail.

[0057] The flip-follow-up reset assembly 333 is used to cooperate with the flip-drive assembly 323 when it drives the first support plate 321, so that the second support plate 331 can follow the movement, thereby flipping the V-shaped workpiece, and to reset the pair of second support plates 331 after flipping. If the power on both sides is synchronized when flipping the workpiece, the resulting rotational error will affect the workpiece. Therefore, in this embodiment, the flipping is driven only by the active force (active support flipping part 32).

[0058] The flip-follow-up reset assembly 333 includes a reset cylinder 3331, a gear and rack transmission assembly 3332, a rotating shaft, a bearing, a floating joint 3335, and an electromagnetic clutch 336.

[0059] The reset cylinder 3331 is mounted on the second support arm 335, with its piston rod pointing vertically downwards. The gear and rack transmission assembly 3332 includes a gear 33321, a rack 33322, and an adapter plate 33323. The gear 33321 is located on one end of the rotating shaft, and the rack 33322 is mounted on the second support arm 335 and extends vertically. The adapter plate 33323 is mounted on one side of the upper end of the rack 33322. The reset cylinder 3331 is connected to the adapter plate 33323 via a floating joint 3335. The other end of the rotating shaft is fixed to a connecting plate 3324, driving the connecting plate 3324 and a pair of second support plates 331 to rotate as a whole. The electromagnetic clutch 336 is located on one end of the rotating shaft 3333, closer to the outer end of the rotating shaft than the gear 33321, and is used to drive the gear 33321 to move, thereby causing the gear 33321 to mesh or disengage from the rack 33322.

[0060] The translation drive unit 31 is used to drive the active support flipping unit 32 and the passive support flipping unit 33 to translate, so that the first support plate 321 and the second support plate 331 move closer to each other or further away from each other, thereby clamping or releasing the V-shaped workpiece 200.

[0061] The translation drive unit 31 includes a translation support rod 311, a translation guide assembly 312, a translation cylinder 313, a translation motor 314, and a translation transmission assembly 315.

[0062] The translational support rod 311 is a relatively thick square rod. The upper ends of the first support arm 325 and the second support arm 335 are both equipped with corresponding square through holes, which are sleeved on the translational support rod 311 and can move along its length.

[0063] The translation guide assembly 312 includes multiple guide rails and a slider. The guide rails are horizontally arranged on two sides of the translation support rod 311. The slider is fixed on the inner sidewall of the square through hole of the first support arm 325 and the second support arm 335 and is slidably fitted into the guide rail.

[0064] The translation cylinder 313 is used to drive the active support tilting part 32 to translate. The translation cylinder 313 is installed below one end of the translation support rod 311, and its piston rod is horizontally facing the first support arm 325.

[0065] The translation motor 314 and the translation transmission assembly 315 are used to drive the passive support tilting part 33 to translate. The translation motor 314 is mounted on the other end of the translation support rod 311. The translation transmission assembly 315 includes a lead screw and a lead screw nut. The lead screw nut is fixed to the second support arm 335. The translation motor 314 is used to drive the lead screw to rotate, thereby driving the passive support tilting part 33 to translate through the lead screw nut.

[0066] The lifting mechanism 40 is used to drive the clamping and tilting mechanism 30 to move up and down, thereby enabling the clamping and tilting mechanism 30 to descend to a predetermined pick-and-place height, at which it clamps and places the V-shaped workpiece supported on the bracket, and enabling the clamping and tilting mechanism 30 to rise to a predetermined tilting safety height, at which it tilts the V-shaped workpiece, preventing the V-shaped workpiece from interfering with other mechanism components during the tilting process. The lifting mechanism 40 includes a lifting motor 41 and a lifting transmission assembly, the structure of which is prior art and will not be described in detail.

[0067] like Figure 3 As shown, in use, the angles of the pair of first support plates 321 and the pair of second support plates 331 are first adjusted by the first angle adjustment component 322 and the second angle adjustment component 332 respectively, so that they match the V-shaped workpiece 200 to be flipped. At the same time, other conveying devices cooperate with the conveying mechanism 20 to convey the bracket 300 carrying the V-shaped workpiece 200 with the opening facing upward to the lower part of the frame 10.

[0068] Then, the lifting mechanism 40 drives the clamping and flipping mechanism 30 to descend to the predetermined pick-up and drop height. The translation drive unit 31 drives the active support flipping unit 32 and the passive support flipping unit 33 to translate towards the V-shaped workpiece 200 until a pair of first support plates 321 and a pair of second support plates 331 abut against the end faces of both ends of the V-shaped workpiece 200 in the length direction, clamping the V-shaped workpiece 200.

[0069] Subsequently, the lifting mechanism 40 drives the clamping and flipping mechanism 30 that clamps the V-shaped workpiece 200 to rise to the predetermined flipping height. The flipping drive assembly 323 of the active support flipping part 32 drives a pair of first support plates 321 to flip as a whole. The electromagnetic clutch 3336 of the passive support flipping part 33 causes the gear and rack to separate. The passive support flipping part 33 only moves during the flipping process, thereby realizing the flipping of the V-shaped workpiece 200.

[0070] Finally, the lifting mechanism 40 lowers the clamping and flipping mechanism 30, which holds the flipped V-shaped workpiece 200, to the pick-and-place height. The translation drive unit 31 drives the active support flipping unit 32 and the passive support flipping unit 33 to translate in opposite directions, releasing the V-shaped workpiece 200. The flipped V-shaped workpiece 200 is then placed on the bracket 300, and can be sent out by the conveying mechanism 20 along with the bracket 300. After the workpiece is released, the electromagnetic clutch 3336 of the passive support flipping unit 33 engages the gear and rack, and the reset cylinder 3331 drives a pair of second support plates 331 to rotate and reset via the gear and rack transmission assembly 3332 and the rotating shaft.

[0071] The role and effect of the embodiments

[0072] According to the V-shaped workpiece flipping device provided in this embodiment, since it has a clamping and flipping mechanism, a lifting mechanism, and a conveying mechanism, it can convey the V-shaped workpiece to the area below the clamping and flipping mechanism. After the lifting mechanism drives the clamping and flipping mechanism to descend to the pick-and-place height, the clamping and flipping mechanism clamps both ends of the workpiece in the length direction. Then, the lifting mechanism drives the clamping and flipping mechanism and the clamped V-shaped workpiece to rise to a safe flipping height. The clamping and flipping mechanism then flips the clamped V-shaped workpiece. After flipping, it descends to the pick-and-place height to place the workpiece. In this way, it is not necessary to hold the outer circumference of the workpiece to achieve flipping, which will not damage the components that are pasted and pressed on the side of the V-shaped workpiece. Moreover, it can flip the V-shaped workpiece at an appropriate height, avoiding the V-shaped workpiece from hitting the bracket or other mechanism parts during the flipping process, thereby achieving stable flipping.

[0073] In this embodiment, the clamping and flipping mechanism includes an active support flipping section, a passive support flipping section, and a translation drive section. Each support flipping section includes a pair of support plates arranged in a V-shape. Therefore, translation allows the two pairs of support plates to move closer or further apart, thereby clamping or releasing the V-shaped end faces at both ends of the V-shaped workpiece along its length, achieving stable clamping. Furthermore, during the flipping process, only the active support flipping section drives the clamped V-shaped workpiece to flip, while the passive support flipping section follows suit and resets after rotation. This avoids unwanted torsion of the workpiece due to rotational errors caused by synchronous power on both sides, resulting in more stable workpiece flipping, ensuring workpiece quality, and eliminating the need for synchronous control on both sides, thus simplifying automation control.

[0074] Furthermore, the passive support flipping section uses an electromagnetic clutch to switch the state of the gear and rack transmission assembly, so that the gear and rack mesh or disengage, thereby enabling a pair of second support plates to move during the flipping process, and enabling the cylinder to drive the pair of second support plates to rotate and reset through the gear and rack transmission assembly. The switching of the usage state does not require manual intervention, making it more convenient to use.

[0075] Furthermore, both the active support tilting section and the passive support tilting section include angle adjustment components, which can adjust the included angle of a pair of support plates. This allows the two pairs of support plates to effectively clamp V-shaped workpieces at different angles, expanding the applicability of the device. Specifically, the angle adjustment component includes a motor, a belt drive assembly, a lead screw, a connecting plate, a connecting rod, and a rotating rod fixed to the support plates. Therefore, it can achieve high-precision angle adjustment, and the connecting rod structure ensures that the pair of support plates always maintain the corresponding adjustment angle, thereby matching the included angle of the support plates with the end face shape of the V-shaped workpiece.

[0076] Furthermore, each support plate includes a rigid support plate portion and an elastic pad layer. The elastic pad layer contacts both ends of the V-shaped workpiece, thus clamping the workpiece well. Even if the clamping force fluctuates, the elastic pad layer can also play a certain buffering role and will not damage the workpiece.

[0077] Furthermore, the translation drive unit includes a translation cylinder, a translation motor, and a translation transmission assembly (screw assembly), which are used to drive the active support flipping part and the passive support flipping part to translate, so that they move closer to each other or further away from each other. That is, the positioning and clamping method of using a cylinder on one side and a motor on the other side can not only adapt to a large range of workpiece lengths, but also achieve a good clamping effect for V-shaped workpieces of different lengths, and the equipment cost is lower.

[0078] Furthermore, the conveying mechanism includes a chain conveyor and a pair of guide bars, which can horizontally transport the tray carrying the V-shaped workpiece into the device without manual handling. Since the V-shaped workpiece is large and the overall weight of the workpiece and tray is heavy, this significantly saves manpower and improves efficiency. In addition, the guide bars, with their ends folded outwards and their middle sections parallel to each other, guide the entering tray, making it easier for it to enter the designated position in the device without requiring high-precision alignment, thus facilitating related automated control.

[0079] <Example 2>

[0080] This embodiment provides a V-shaped workpiece flipping device. In this embodiment, the same symbols are assigned to the same constituent elements as in the embodiment, and the corresponding descriptions are omitted.

[0081] Figure 10 This is a perspective view of the V-shaped workpiece flipping device in this embodiment. Figure 11 This is a side view of the V-shaped workpiece flipping device in this embodiment.

[0082] like Figure 10 and Figure 11 As shown, compared with Embodiment 1, the difference lies in the fact that the structure of the frame 10 and the lifting mechanism 40 is different in this embodiment, and correspondingly, the working process of the V-shaped workpiece flipping device 100 is different.

[0083] Specifically, in this embodiment, the lifting mechanism 40 is disposed at the bottom of the frame 10, and the conveying mechanism 20 is mounted on the lifting mechanism 40. The lifting mechanism 40 is used to drive the conveying mechanism 20 and the V-shaped workpiece 200 thereon to move up and down. The lifting mechanism 40 in this embodiment includes a lifting motor 41 and a scissor-lift assembly 42. The conveying mechanism 20 is disposed at the upper end of the scissor-lift assembly 42. The lifting motor 41 is used to drive the scissor-lift assembly 42 to extend and retract longitudinally, thereby driving the conveying mechanism 20 to move up and down. This lifting structure is existing technology and will not be described in detail.

[0084] Corresponding to the arrangement of the lifting mechanism 40, since there is no need to support the lifting mechanism located above, the structure of the frame 10 is simplified, and the frame 10 does not include the top support structure, side ladders, etc. in Embodiment 1.

[0085] In use, the angles of the pair of first support plates 321 and the pair of second support plates 331 are adjusted by the first angle adjustment component 322 and the second angle adjustment component 332 respectively, so that they match the V-shaped workpiece 200 to be flipped. At the same time, the lifting mechanism 40 first positions the conveying mechanism 20 at a predetermined conveying height (i.e., lowers it to the lowest point), and other conveying devices cooperate with the conveying mechanism 20 to convey the bracket 300 carrying the V-shaped workpiece 200 with the opening facing upward to the lower part of the frame 10.

[0086] Then, the lifting mechanism 40 drives the conveying mechanism 20 to rise to the predetermined pick-up and flip height. The translation drive unit 31 drives the active support flip unit 32 and the passive support flip unit 33 to translate towards the V-shaped workpiece 200 until a pair of first support plates 321 and a pair of second support plates 331 abut against the end faces of both ends of the V-shaped workpiece 200 in the length direction, clamping the V-shaped workpiece 200.

[0087] Subsequently, the lifting mechanism 40 drives the conveying mechanism 20 to descend to its original height, completely separating the conveying mechanism 20 from the V-shaped workpiece 200. The flipping drive assembly 323 of the active support flipping part 32 drives a pair of first support plates 321 to flip as a whole, and the electromagnetic clutch 3336 of the passive support flipping part 33 causes the gear and rack to separate. The passive support flipping part 33 only moves during the flipping process, thereby realizing the flipping of the V-shaped workpiece 200.

[0088] Finally, the lifting mechanism 40 again drives the conveying mechanism 20 to rise to the pick-up and flip height. The translation drive unit 31 drives the active support flipping unit 32 and the passive support flipping unit 33 to translate in the opposite direction, releasing the V-shaped workpiece 200. The flipped V-shaped workpiece 200 is then placed on the bracket 300 mounted on the conveying mechanism 20, and can be sent out again by the conveying mechanism 20 along with the bracket 300. After the workpiece is released, the electromagnetic clutch 3336 of the passive support flipping unit 33 engages the gear and rack, and the reset cylinder 3331 drives a pair of second support plates 331 to rotate and reset via the gear and rack transmission assembly 3332 and the rotating shaft.

[0089] In this embodiment, the other structures are the same as in Embodiment 1, so they will not be described again.

[0090] The function and effect of Example 2:

[0091] Based on the function and effect of the first embodiment, the V-shaped workpiece flipping device provided in this embodiment uses a scissor-type lifting component and is set below the conveying mechanism to lift the conveying mechanism. Therefore, the distance between the V-shaped workpiece and the clamping and flipping mechanism can also be adjusted by lifting, so that the clamping and flipping mechanism can clamp the V-shaped workpiece and flip it with the V-shaped workpiece at a safe flipping height. During the flipping process, it will not interfere with other mechanisms of the device.

[0092] Furthermore, since the lifting mechanism is located at the bottom of the overall device, the top of the frame no longer needs to provide a support structure for it, nor does it require maintenance personnel to go up to the top for inspection and maintenance. Therefore, the frame structure can be simplified and miniaturized.

[0093] The above embodiments are merely illustrative of specific implementations of this utility model, and the utility model is not limited to the scope of the above embodiments. Those skilled in the art should understand that the utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are only for illustrating the principles of the utility model. Various changes and modifications can be made to the utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the utility model as claimed. The scope of protection of this utility model is defined by the appended claims and their equivalents.

[0094] For example, in the above embodiment, the V-shaped workpiece was rotated 180 degrees as an example. In fact, the V-shaped workpiece rotating device can also rotate the V-shaped workpiece to other angles as needed, such as 45 degrees or 90 degrees.

Claims

1. A V-shaped workpiece flipping device for flipping V-shaped workpieces constituting liquefied natural gas cargo tanks, characterized in that, include: A clamping and flipping mechanism is used to clamp both ends of the V-shaped workpiece along its length and flip it over. A conveying mechanism is used to convey the V-shaped workpiece to be flipped to the area below the clamping and flipping mechanism and to output the flipped V-shaped workpiece. as well as A lifting mechanism is used to lift or lower the clamping and flipping mechanism or the conveying mechanism so that the clamping and flipping mechanism can clamp the V-shaped workpiece placed on the conveying mechanism and drive the V-shaped workpiece to flip when the V-shaped workpiece is separated from the conveying mechanism.

2. The V-shaped workpiece flipping device according to claim 1, Its features are: The clamping and flipping mechanism includes: An active support and flipping unit is used to support one end of the V-shaped workpiece along its length and drive the V-shaped workpiece to flip. A passive support flipping section is used to support the V-shaped workpiece and the other end in the length direction and moves with it during the flipping process; and The translation drive unit is used to drive the active support flipping unit and / or the passive support flipping unit to translate, so that they move closer to each other or further apart, thereby clamping or releasing the V-shaped workpiece.

3. The V-shaped workpiece flipping device according to claim 2, Its features are: The V-shaped workpiece has two V-shaped ends along its length. The active support flipping part includes: A pair of first support plates, arranged in a V-shape, are used to support one of the end faces; A first angle adjustment component is used to adjust the included angle between a pair of the first support plates; and A flipping drive assembly is used to drive the pair of first support plates and the first angle adjustment assembly to rotate as a whole, thereby causing the V-shaped workpiece to flip. The passive support flipping part includes: A pair of second support plates, arranged in a V-shape, are used to support the other end face; The second angle adjustment component is used to adjust the included angle between a pair of second support plates; The flip-follow-up reset assembly is used to cause the pair of second support plates and the second angle adjustment assembly to move together when flipped, and to rotate and reset the pair of second support plates and the second angle adjustment assembly after flipping.

4. The V-shaped workpiece flipping device according to claim 3, Its features are: Both the first angle adjustment component and the second angle adjustment component include: Two rotating rods are fixed to a pair of first support plates or a pair of second support plates, respectively, and one end of each rotating rod is a rotating shaft; Two connecting rods, one end of which is rotatably connected to the middle of the two rotating rods respectively; A connecting plate, wherein the other ends of the two connecting rods are rotatably connected to the lower part of the connecting plate; The slider nut is fixed to the connecting plate; The lead screw, and the slider nut are mounted on the lead screw; Belt drive assembly; and An angle-adjusting motor drives the lead screw to rotate via the belt drive assembly.

5. The V-shaped workpiece flipping device according to claim 4, Its features are: The rotating rod includes: The main rod is straight, with one end serving as the rotating shaft. The secondary rod is straight and one end is connected to the middle of the main rod; and The connecting block, in the form of a block, is connected to the middle of the main rod and is closer to the rotation axis than the secondary rod. The main rod and the secondary rod are provided with a plurality of mounting holes, and the first support plate and the second support plate are provided with a plurality of holes corresponding to the plurality of mounting holes. The connecting block has a connecting hole, and the other end of the connecting rod is rotatably connected to the connecting hole via a connector.

6. The V-shaped workpiece flipping device according to claim 4, characterized in that: in, Both the first support plate and the second support plate are rectangular plates with missing corners, and each includes a rigid support plate portion and an elastic pad layer, with the pad layer facing the V-shaped workpiece.

7. The V-shaped workpiece flipping device according to claim 3, Its features are: in, The flip-follow-up reset assembly also includes a second mounting plate, on which the second support plate and the second angle adjustment assembly are both mounted. The flip-follow-up reset component includes: One end of the rotating shaft is fixed to the two mounting plates; A gear and rack drive assembly includes a gear and a rack disposed at the other end of the shaft; An electromagnetic clutch is used to engage or disengage the gear and the rack. Floating joints; and The reset cylinder has a piston rod connected to the rack via the floating joint, which drives the rack to move, thereby rotating and resetting a pair of second support plates via the gears and the rotating shaft. The flip-drive assembly further includes a first mounting plate, on which the first support plate and the first angle adjustment assembly are both mounted. The flip drive component includes: One end of the rotating shaft is fixed to the first mounting plate; Transmission components; and A rotating motor and a reducer drive the shaft to rotate via the transmission assembly.

8. The V-shaped workpiece flipping device according to claim 3, Its features are: in, The active support flipping unit also includes: The first support arm, the first support plate, the first angle adjustment component, and the flipping drive component are all disposed in the lower middle part of the first support arm. The passive support flipping part also includes: The second support arm, the second support plate, the second angle adjustment component, and the flipping drive component are all located in the lower middle part of the second support arm. Both the first support arm and the second support arm have through holes at their upper parts. The translation drive unit includes: A translational support rod, wherein both the first support arm and the second support arm are movably sleeved on the translational support rod; A translation guide assembly is used to guide the movement of the first support arm and the second support arm; A translation cylinder for driving one of the first support arm and the second support arm to translate; and A translation motor and a translation transmission assembly are used to drive the first support arm and the other of the second support arm to translate.

9. The V-shaped workpiece flipping device according to claim 1, Its features are: The conveying mechanism includes: A chain conveyor mechanism for conveying a bracket carrying the V-shaped workpiece; and A pair of guide bars are respectively disposed on both sides of the chain conveyor mechanism, with their ends folded outwards, for guiding the entry and movement of the bracket. The lifting mechanism is located above the clamping and flipping mechanism and is used to drive the clamping and flipping mechanism to move up and down.

10. The V-shaped workpiece flipping device according to claim 1, Its features are: The conveying mechanism includes: A chain conveyor mechanism for conveying a bracket carrying the V-shaped workpiece; and A pair of guide bars are respectively disposed on both sides of the chain conveyor mechanism, with their ends folded outwards, for guiding the entry and movement of the bracket. The lifting mechanism is located below the conveying mechanism and is used to drive the conveying mechanism to move up and down.

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