Vehicle lifting appliance

Abstract

The invention relates to the technical field of automobile manufacturing process equipment, and discloses a vehicle lifting appliance which comprises a main body frame, a moving assembly, a rotating assembly, at least two sets of lifting arm assemblies arranged at intervals and at least two sets of clamping assemblies. The moving assembly can slide relative to the main body frame in the first direction, and the rotating assembly rotates around a first rotating shaft. The first end of the suspension arm assembly is slidably connected with the rotating assembly, the second end of the suspension arm assembly is located on one side of the body frame, the suspension arm assembly can slide relative to the rotating assembly in the second direction, and the first rotating shaft is parallel to the second direction. The suspension arm assembly can extend or retract in the length direction of the suspension arm assembly so as to drive the clamping assembly to be away from or close to the body frame. According to the vehicle lifting appliance, the position of the clamping assembly and the relative position of the clamping device on the clamping assembly can be flexibly adjusted so as to adapt to the size and the shape of a workpiece, the production requirements of different vehicle types are met, the applicability of the vehicle lifting appliance is improved, and the development cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of automobile manufacturing process equipment, in particular to a vehicle hoist. Background Art

[0002] In automobile manufacturing, hoists play a vital role in the handling of large and heavy parts such as body-in-white, vehicle roof, and side panels. They not only undertake the task of safe and reliable handling, but also need to meet multiple requirements such as precise positioning, automated handling, and adaptability to different models, so as to improve production efficiency, ensure production safety, and reduce production costs. In related technologies, hoists on automobile production lines can usually only hoist one type of component and components of a single model, with low work efficiency, and multiple sets of hoists need to be redesigned for different models, with a long production cycle and high development costs for new models. Summary of the invention

[0003] The technical problem to be solved by the present invention is: in the related art, the hoists on the vehicle automobile production line can usually only hoist one kind of component and the components of a single model, the work efficiency is low, and the cost of developing new models is high.

[0004] In order to solve the above technical problems, the present invention provides a vehicle lifting device, comprising:

[0005] Main frame;

[0006] A moving component, the moving component is slidably connected to the main frame, and the moving component is slidable relative to the main frame along a first direction;

[0007] A rotating assembly, the rotating assembly is rotatably connected to the moving assembly, and the rotating assembly rotates around a first rotating shaft;

[0008] At least two groups of spaced-apart boom assemblies, wherein a first end of the boom assembly is slidably connected to the rotating assembly, a second end of the boom assembly is located at one side of the main frame, the boom assembly is slidable relative to the rotating assembly along a second direction, the second direction intersects the first direction, and the first rotating shaft is parallel to the second direction;

[0009] At least two groups of clamping assemblies, each group of the clamping assemblies is connected to the second end of each group of the boom assemblies in a one-to-one correspondence, the clamping assemblies include a clamp, the clamp is facing one side of the main frame for clamping the workpiece,

[0010] The boom assembly can be extended or shortened along its own length direction to drive the clamping assembly away from the main frame or close to the main frame.

[0011] According to one embodiment of the present invention, the moving component comprises:

[0012] A motion frame connected to the rotating assembly;

[0013] A first sliding block, wherein the first sliding block is fixedly connected to the moving frame, the main frame is provided with a first sliding rail extending along the first direction, the first sliding block is connected to the first sliding rail and can slide along the first sliding rail;

[0014] A first sliding driving member is connected to the moving frame to drive the moving frame to slide relative to the main frame.

[0015] According to one embodiment of the present invention, the rotating assembly comprises:

[0016] a rotating arm, the rotating arm being rotatably connected to the moving assembly;

[0017] A connecting plate, wherein the connecting plate is fixedly connected to the rotating arm, and the boom assembly is slidably connected to the connecting plate;

[0018] A rotation driving member is connected to the rotating arm to drive the rotating arm to rotate relative to the moving assembly.

[0019] According to one embodiment of the present invention, the connecting plate is provided with a second slide rail, the second slide rail extends along the second direction, and the boom assembly is provided with a second slider, the second slider is connected to the second slide rail and can slide along the second slide rail.

[0020] According to one embodiment of the present invention, the moving components and the rotating components are each in two groups, and the two groups of the moving components are respectively arranged at both ends of the main frame, and the moving components are connected one-to-one with the rotating components. The boom components and the clamping components are each in four groups, and the boom components and the clamping components are connected one-to-one with each other, and each group of the moving components is connected to two groups of the boom components.

[0021] According to one embodiment of the present invention, the boom assembly comprises:

[0022] a fixing member slidably connected to the moving assembly;

[0023] A mounting member connected to the clamping assembly;

[0024] a second sliding driving member connected to the fixing member to drive the fixing member to slide relative to the moving assembly;

[0025] A first connecting arm, the first connecting arm is connected to the fixing member, and the first connecting arm is provided with at least two first positioning holes;

[0026] a second connecting arm, the second connecting arm being connected to the mounting member, the second connecting arm being provided with at least two second positioning holes;

[0027] a first positioning pin, the first positioning pin being inserted into the first positioning hole and the second positioning hole;

[0028] A telescopic driving member, one end of which is connected to the first connecting arm, and the other end of which is connected to the mounting member.

[0029] According to one embodiment of the present invention, the boom assembly also includes a second positioning pin, a first reinforcement arm and a second reinforcement arm, one end of the first reinforcement arm is rotatably connected to the movable assembly, and the other end is provided with at least two third positioning holes, the second reinforcement arm is connected to the mounting member, the second reinforcement arm is provided with at least two fourth positioning holes, and the second positioning pin is inserted into the third positioning hole and the fourth positioning hole.

[0030] According to one embodiment of the present invention, the clamping assembly also includes a connecting shaft and a support member, the connecting shaft is connected to the boom assembly, one end of the support member is rotatably connected to the connecting shaft, and the other end is connected to the clamp, the support member rotates around a second rotating shaft, the second rotating shaft extends along a third direction, and the third direction intersects with both the first direction and the second direction.

[0031] According to one embodiment of the present invention, the vehicle lifting device further comprises a suction cup, wherein the suction cup is used to be connected to the workpiece, and the suction cup is connected to the main frame via a flexible chain.

[0032] According to one embodiment of the present invention, the vehicle hoist further comprises a pressure sensor and a controller, wherein the pressure sensor is disposed on the clamp, and the controller is communicatively connected with the pressure sensor, the moving assembly, the rotating assembly and the boom assembly.

[0033] A vehicle hoist according to an embodiment of the present invention drives a clamping assembly to move in a first direction through a moving assembly, drives the clamping assembly to move in a second direction through a boom assembly, and the boom assembly can drive the clamping assembly away from or close to a main frame, and the rotating assembly drives the clamping assembly to rotate around a first rotating shaft, so that the vehicle hoist has at least four degrees of freedom of movement. During the working process, the position of the clamping assembly can be flexibly adjusted, and the relative positions of the clamps on the multiple groups of clamping assemblies can be adjusted to adapt to the size and shape of the workpiece, to meet the production requirements of different vehicle models, to improve the applicability of the vehicle hoist, and to reduce the development cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is one of the structural schematic diagrams of the vehicle lifting device provided by the embodiment of the present invention.

[0035] Figure 2 This is the second structural schematic diagram of the vehicle lifting device provided by the embodiment of the present invention.

[0036] Figure 3 It is a schematic structural diagram of a vehicle hoisting a body-in-white provided by an embodiment of the present invention.

[0037] Figure 4 It is a structural schematic diagram of a vehicle roof hoisted by a vehicle hoist provided by an embodiment of the present invention.

[0038] Figure 5 It is a structural schematic diagram of a vehicle lifting device lifting side panel subassembly provided in an embodiment of the present invention.

[0039] Figure 6 It is a block diagram of a control system of a vehicle hoist provided in an embodiment of the present invention.

[0040] Reference numerals:

[0041] 100. Vehicle lifting equipment;

[0042] 110. main frame; 111. first slide rail; 112. suction cup; 113. flexible chain;

[0043] 120, moving assembly; 121, moving frame; 1211, first rod; 1212, second rod; 1213, connecting rod; 122, first sliding block; 123, first sliding driving member;

[0044] 130, rotating assembly; 131, rotating arm; 132, connecting plate; 133, second slide rail; 134, rotating driving member; 135, reinforcing rod;

[0045] 140, boom assembly; 1401, first end; 1402, second end; 141, fixing member; 142, mounting member; 143, first connecting arm; 144, second connecting arm; 145, second positioning hole; 146, telescopic driving member; 147, first reinforcing arm; 148, second reinforcing arm; 149, fourth positioning hole;

[0046] 150. Clamping assembly; 151. Clamp; 152. Connecting shaft; 153. Support member;

[0047] 210, body in white; 220, vehicle roof; 230, side panel sub-assembly;

[0048] X, first direction; Y, second direction; Z, third direction. DETAILED DESCRIPTION

[0049] The specific embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following embodiments are used to illustrate the present invention, but are not used to limit the scope of the present invention.

[0050] In the description of the embodiments of the present invention, the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0051] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific situations.

[0052] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present invention. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0053] For the convenience of description, in the following text and Figures 1 to 6 X is used to represent the first direction, Y is used to represent the second direction, and Z is used to represent the third direction. The first direction, the second direction, and the third direction all intersect pairwise. Further, the first direction, the second direction, and the third direction are perpendicular to each other pairwise.

[0054] As Figure 1 shown, a vehicle lifting device 100 according to an embodiment of the present invention includes a main body frame 110, a moving component 120, a rotating component 130, at least two groups of spaced-apart boom components 140, and at least two groups of clamping components 150.

[0055] Specifically, the moving assembly 120 is slidably connected to the main frame 110, and the moving assembly 120 is slidable relative to the main frame 110 along the first direction X. The rotating assembly 130 is rotatably connected to the moving assembly 120, and the rotating assembly 130 rotates around the first rotation axis. The first rotation axis is located in the plane where the main frame 110 is located, so that the rotating assembly 130 swings in the third direction relative to the main frame 110. Figure 1 As shown, the first end 1401 of the boom assembly 140 is slidably connected to the rotating assembly 130, and the second end 1402 of the boom assembly 140 is located at one side of the main frame 110. Specifically, the second end 1402 is located in the negative direction of the third direction Z relative to the first end 1401. The boom assembly 140 is slidable relative to the rotating assembly 130 along the second direction Y. Figure 1 In the example, each set of clamping assemblies 150 is connected to each set of boom assemblies 140 in a one-to-one correspondence, and the first rotation axis is parallel to the second direction Y. The clamping assembly 150 is connected to the second end 1402 of the boom assembly 140, and the clamping assembly 150 includes a clamp 151, and the clamp 151 faces one side of the main frame 110 for clamping the workpiece. The boom assembly 140 is connected along its own length direction (such as Figure 2 The direction indicated by the arrow a in FIG. 1 can be extended or shortened to drive the clamping assembly 150 away from the main frame 110 or close to the main frame 110.

[0056] By moving the moving assembly 120 relative to the main frame 110 in the first direction X, the rotating assembly 130, the boom assembly 140 and the clamping assembly 150 are driven to move in the first direction X; by rotating the rotating assembly 130 relative to the moving assembly 120, the boom assembly 140 and the clamping assembly 150 are driven to rotate relative to the main frame 110 around the first rotation axis; by moving the boom assembly 140 relative to the rotating assembly 130 in the second direction Y, the clamping assembly 150 is driven to move in the second direction Y; the boom assembly 140 is extended or shortened to drive the clamping assembly 150 away from the main frame 110 or close to the main frame 110. In this way, the vehicle hoist 100 has at least four degrees of freedom of movement. During operation, the position of the clamping assembly 150 is adjusted through the moving assembly 120, the rotating assembly 130 and the arm assembly 140, and the relative positions of the clamps 151 on the multiple clamping assemblies 150 are adjusted to meet the requirements of hoisting the body-in-white 210, the vehicle roof 220 or the side panel subassembly 230, and to hoist different parts of the same vehicle model. In addition, for different vehicle models, the position of the clamping assembly 150 can also be adjusted to adapt to different vehicle models, meet the production requirements of different vehicle models, improve the applicability of the vehicle hoist 100, and reduce development costs.

[0057] For example, when the body-in-white 210 needs to be hoisted, the position of the clamp 151 is adjusted through the moving assembly 120, the rotating assembly 130 and the arm assembly 140, so that the clamp 151 clamps the upper edge of the door opening of the body-in-white 210 and ensures that the body can maintain balance during the movement of the body; when the vehicle roof 220 needs to be hoisted, the clamp 151 is adjusted through the moving assembly 120, the rotating assembly 130 and the arm assembly 140 to adapt to the length, width, height and other dimensions of the vehicle roof 220. The versatility of the vehicle hoist 100 in the vehicle production process is improved, and the cost is reduced.

[0058] According to a vehicle hoist 100 of an embodiment of the present invention, the moving assembly 120 drives the clamping assembly 150 to move along the first direction X, the boom assembly 140 drives the clamping assembly 150 to move along the second direction Y, and the boom assembly 140 can drive the clamping assembly 150 away from or close to the main frame 110, and the rotating assembly 130 drives the clamping assembly 150 to rotate around the first rotating shaft, so that the vehicle hoist 100 has at least four degrees of freedom of movement. During the working process, the position of the clamping assembly 150 can be flexibly adjusted, and the relative positions of the clamps 151 on the multiple groups of clamping assemblies 150 can be adjusted to adapt to the size and shape of the workpiece, adapt to the production requirements of different vehicle models, improve the applicability of the vehicle hoist 100, and reduce the development cost.

[0059] like Figure 2 As shown, according to some embodiments of the present invention, the moving assembly 120 includes a moving frame 121, a first slider 122 and a first sliding drive 123. The moving frame 121 is connected to the rotating assembly 130, and the moving frame 121 is a frame structure to reduce the weight of the vehicle hoist 100. The first slider 122 is fixedly connected to the moving frame 121, and the main frame 110 is provided with a first slide rail 111 extending along the first direction X. The first slider 122 is connected to the first slide rail 111 and can slide along the first slide rail 111. Figure 2 In the example, the first slide rail 111 is block-shaped, the first slider 122 is groove-shaped, and the first slider 122 is sleeved on the first slide rail 111. The first sliding drive member 123 is connected to the motion frame 121 to drive the motion frame 121 to slide relative to the main frame 110, and the first sliding drive member 123 can be an electric push rod. In some embodiments, the motion frame 121 may include a first rod 1211 and a second rod 1212 arranged at intervals, and a connecting rod 1213 connecting the first rod 1211 and the second rod 1212, the first slider 122 is provided on the first rod 1211, one end of the first sliding drive member 123 is connected to the main frame 110, and the other end is connected to the first rod 1211, and the first sliding drive member 123 drives the first rod 1211 to move by telescopic push rod, thereby driving the motion frame 121 to move.

[0060] According to some embodiments of the present invention, the rotating assembly 130 includes a rotating arm 131, a connecting plate 132 and a rotating driving member 134. The rotating arm 131 is rotatably connected to the moving assembly 120, and the rotating arm 131 is rotatable around the first rotating shaft. Specifically, the rotating arm 131 can be connected to the second rod 1212 through a pivot shaft. The connecting plate 132 is fixedly connected to the rotating arm 131, and the rotating arm 131 can drive the connecting plate 132 to rotate, and the boom assembly 140 is slidably connected to the connecting plate 132. The rotating driving member 134 is connected to the rotating arm 131 to drive the rotating arm 131 to rotate relative to the moving assembly 120. In some embodiments, the rotating driving member 134 can be an electric push rod, one end of the rotating driving member 134 is connected to the moving frame 121, and the other end is connected to the rotating arm 131, and the rotating arm 131 is driven to rotate relative to the moving frame 121 through the extension and contraction of the push rod.

[0061] like Figure 2 As shown, there are two rotating arms 131 and two rotating driving members 134, and the two rotating arms 131 are arranged at intervals, each rotating driving member 134 is connected to each rotating arm 131 one by one, the connecting plate 132 connects the two rotating arms 131, and a reinforcing rod 135 is connected between the two rotating arms 131 to improve the stability of the rotating assembly 130.

[0062] like Figure 2 As shown, according to some embodiments of the present invention, the connecting plate 132 is provided with a second slide rail 133, the second slide rail 133 extends along the second direction Y, and the boom assembly 140 is provided with a second slider (not shown in the figure), the second slider is connected to the second slide rail 133, and can slide along the second slide rail 133. Specifically, the second slide rail 133 has two parallel grooves, the second slider is block-shaped, the second slider is embedded in the second slide rail 133, and can slide along the second slide rail 133.

[0063] According to some embodiments of the present invention, the moving assembly 120 and the rotating assembly 130 are both in two groups, and the two groups of moving assemblies 120 are respectively disposed at both ends of the main frame 110, and the moving assemblies 120 and the rotating assemblies 130 are connected one by one. Figure 1 As shown, two groups of moving components 120 are respectively arranged at both ends of the main frame 110 in the first direction X, and can slide along the first direction X. There are four groups of boom components 140 and clamping components 150, and the boom components 140 and clamping components 150 are connected one by one. Each group of moving components 120 is connected to two groups of boom components 140. Figure 1 and Figure 2As shown, the connecting plate 132 extends along the second direction Y, and two second slide rails 133 are arranged on the connecting plate 132 at intervals along the second direction Y, and the arm assembly 140 is connected to the second slide rails 133 in a one-to-one correspondence. In this way, the relative positions of the four clamping assemblies 150 are adjusted by the moving assembly 120, the rotating assembly 130 and the arm assembly 140, so that the clamping assembly 150 is hoisted corresponding to the hoisting points on the body-in-white 210, the vehicle roof 220 or the side panel subassembly 230. In addition, since each set of rotating assemblies 130 is connected to two sets of arm assemblies 140, each set of arm assemblies 140 is movably connected to the connecting plate 132, each set of arm assemblies 140 can slide along the second direction Y independently, and the arm assemblies 140 can be extended or shortened, so that the degree of independent adjustment of the four arm assemblies 140 is relatively high, so as to adjust the position of each set of clamping assemblies 150 to keep the hoisted workpiece balanced.

[0064] According to some embodiments of the present invention, the boom assembly 140 includes a fixing member 141, a mounting member 142, a second sliding drive member, a first connecting arm 143, a second connecting arm 144, a first positioning pin and a telescopic drive member 146. The fixing member 141 is slidably connected to the moving assembly 120. The fixing member 141 is U-shaped. A second slider is provided on the outer side of the middle part of the fixing member 141. The second slider is connected to the second slide rail 133 on the connecting plate 132. The second sliding drive member (not shown in the figure) is connected to the fixing member 141 to drive the fixing member 141 to slide relative to the moving assembly 120. The second sliding drive member can be an electric push rod or a motor and a driving gear set. The mounting member 142 is connected to the clamping assembly 150. The mounting member 142 is plate-shaped to increase the area connected to the clamping assembly 150 and improve the connection stability. The first connecting arm 143 is connected to the fixing member 141, and the first connecting arm 143 is provided with at least two first positioning holes. The second connecting arm 144 is connected to the mounting member 142, and the second connecting arm 144 is provided with at least two second positioning holes 145. The first positioning pin is inserted into the first positioning hole and the second positioning hole 145 to connect the first connecting arm 143 and the second connecting arm 144. One end of the telescopic driving member 146 is connected to the first connecting arm 143, and the other end is connected to the mounting member 142. The first positioning pin is used to connect the first connecting arm 143 and the second connecting arm 144. On the one hand, the first connecting arm 143 and the second connecting arm 144 are locked, thereby locking the relative position of the fixing member 141 and the mounting member 142; on the other hand, the connection strength between the telescopic driving member 146 and the mounting member 142 can be strengthened, thereby improving the load-bearing capacity of the boom assembly 140. During operation, the first positioning pin is removed, and the distance between the mounting member 142 and the fixing member 141 is adjusted by telescopic driving member 146, and then the first positioning pin is inserted into the corresponding first positioning hole and second positioning hole 145 to lock the first connecting arm 143 and the second connecting arm 144. It is understandable that there may be two or more first positioning pins.

[0065] like Figure 2 As shown, according to some embodiments of the present invention, the boom assembly 140 further includes a second positioning pin, a first reinforcing arm 147 and a second reinforcing arm 148. One end of the first reinforcing arm 147 is rotatably connected to the moving assembly 120. Specifically, one end of the first reinforcing arm 147 can be rotatably connected to the first rod 1211 of the moving frame through a pivot axis. The other end of the first reinforcing arm 147 is provided with at least two third positioning holes, the second reinforcing arm 148 is connected to the mounting member 142, the second reinforcing arm 148 is provided with at least two fourth positioning holes 149, and the second positioning pin is inserted into the third positioning hole and the fourth positioning hole 149. The first reinforcing arm 147 is connected to the moving assembly 120 to improve the installation stability of the boom assembly 140; the first reinforcing arm 147 and the second reinforcing arm 148 are connected to improve the load-bearing capacity of the boom assembly 140.

[0066] According to some embodiments of the present invention, the clamping assembly 150 further includes a connecting shaft 152 and a support member 153. The connecting shaft 152 is connected to the boom assembly 140. One end of the support member 153 is rotatably connected to the connecting shaft 152. A stepper motor may be provided at the connection between the connecting shaft 152 and the support member 153 to drive the support member 153 to rotate. The other end of the support member 153 is connected to the clamp 151. The support member 153 rotates around a second rotation axis. The second rotation axis extends along a third direction Z. The third direction Z intersects with both the first direction X and the second direction Y. Further, the third direction Z is perpendicular to both the first direction X and the second direction Y. Both the first direction X and the second direction Y are located in the plane where the main frame 110 is located. Figure 1As shown, the connecting shaft 152 extends along the third direction Z, and the connecting shaft 152 is connected to the mounting member 142, the supporting member 153 is rotatably connected to the connecting shaft 152 and is perpendicular to each other, and the second rotating shaft extends along the third direction Z. The clamp 151 is arranged on the supporting member 153, and the clamp 151 has a U-shaped surface facing the positive direction of the third direction Z, and the U-shaped surface is in contact with and fixed to the body-in-white 210, the vehicle roof 220 or the side subassembly 230. The supporting member 153 rotates around the second rotating shaft to drive the clamp 151 to rotate on the horizontal plane to meet the lifting requirements and make the adjustment of the vehicle lifting device 100 more flexible. For example, the position of the clamp 151 of the clamping assembly 150 is adjusted by adjusting the moving assembly 120, the rotating assembly 130 and the boom assembly 140 to lift the body-in-white 210. After the lifting of the body-in-white 210 is completed, the support 153 can be rotated to make the clamp 151 located outside. At this time, the orthographic projection of the clamp 151 on the plane where the main frame 110 is located does not fall on the main frame 110, and the next workpiece (such as the side panel subassembly 230) can be lifted, and the length of the boom assembly 140 does not need to be adjusted, and the adjustment process is more convenient. The clamp 151 can be a pneumatic clamping device, and a flexible gasket is provided in the clamp 151 to protect the hoisted workpiece.

[0067] According to some embodiments of the present invention, the vehicle lifting device 100 further includes a suction cup 112, which is used to connect to the workpiece, and the suction cup 112 is connected to the main frame 110 through a flexible chain 113. There can be four suction cups 112 and four flexible chains 113, and the suction cups 112 and the flexible chains 113 are connected one by one, and the four flexible chains 113 are distributed in an array on the main frame 110 to fix the workpiece.

[0068] According to some embodiments of the present invention, the vehicle hoist 100 further includes a pressure sensor and a controller. The pressure sensor is provided on the clamp 151 to detect the pressure on the side of the clamp 151 facing the main frame 110. The controller is in communication connection with the pressure sensor, the moving assembly 120, the rotating assembly 130 and the boom assembly 140. Specifically, the controller is in communication connection with the first sliding drive 123, the second sliding drive, the rotating drive 134 and the telescopic drive 146. The controller obtains the detection pressure value of the pressure sensor. When the detection pressure value remains stable, the clamp 151 has hoisted the workpiece. At this time, the first sliding drive 123, the rotating drive 134 and the telescopic drive 146 are controlled to be locked, and the position of the clamp 151 is fixed to ensure safety during the hoisting process.

[0069] The vehicle hoist 100 also includes a distance measuring sensor, which is arranged on both sides of the production line and is communicatively connected with the controller. The distance measuring sensor is used to detect the length, width and height of the workpiece to be hoisted. The controller obtains the length detection value, width detection value and height detection value of the distance measuring sensor, and controls the first sliding drive member 123 to move according to the length detection value, width detection value and height detection value to drive the moving assembly 120 to move along the first direction X, controls the rotation drive member 134 to move to drive the rotating assembly 130 to rotate around the first rotation axis, controls the second sliding drive member to move to drive the boom assembly 140 to move along the second direction Y, and controls the telescopic drive member 146 to move to drive the clamping assembly 150 away from or close to the main frame 110, thereby adjusting the position of the clamping assembly 150 in the third direction Z.

[0070] like Figure 6 As shown, Figure 6 The control system block diagram of the vehicle hoist 100 provided in the embodiment of the present invention, in which r(t) is the input quantity and y(t) is the output quantity, which may include the elongation of the first sliding drive member 123, the elongation of the second sliding drive member, the elongation of the rotating drive member 134 and the elongation of the telescopic drive member 146. In some embodiments, the controller is a PID controller, which controls the movement of the moving assembly 120, the rotating assembly 130 and the boom assembly 140 according to the pressure value detected by the pressure sensor and the length detection value, width detection value and height detection value of the distance sensor to hoist the workpiece and keep the workpiece balanced. In the PID controller tuning process, BPNN (BP neural network) can be used for training to obtain PID parameters with good performance.

[0071] An embodiment is provided below to facilitate understanding of the working process of the vehicle lifting device 100 of the present invention:

[0072] When hoisting the BIW 210, according to the size of the BIW 210 detected by the distance measuring sensor, the push rod of the first sliding driving member 123 is driven or shortened, so that the first sliding block 122 slides along the first sliding rail 111, so as to drive the moving frame 121 to slide relative to the main frame 110 in the first direction X, thereby driving the rotating assembly 130 to move, and the rotating assembly 130 drives the arm assembly 140 and the clamping assembly 150 to move, so as to adjust the distance between the arm assemblies 140 on the two sets of rotating assemblies 130 in the first direction X, and adjust the position of the clamp 151 on the clamping assembly 150 in the first direction X. The push rod of the rotating driving member 134 is driven to extend or shorten, so that the rotating arm 131 rotates relative to the moving frame 121, and the rotating arm 131 drives the connecting plate 132 to move, thereby driving the arm assembly 140 and the clamping assembly 150 to move, so as to adjust the opening angle of the arm assembly 140.

[0073] The push rod of the second sliding driving member is driven to extend or shorten, so that the second slider slides along the second slide rail 133, thereby driving the fixing member 141 to slide relative to the connecting plate 132, and then driving the entire boom assembly 140 to slide in the second direction Y, so as to adjust the distance between the two groups of boom assemblies 140 on the rotating assembly 130, and adjust the position of the clamp 151 on the clamp assembly 150 in the second direction Y. The push rod of the telescopic driving member 146 is driven to extend or shorten, so as to drive the mounting member 142 to slide along the length direction (such as the length of the boom assembly 140) of the boom assembly 140. Figure 2 The clamping assembly 150 moves in the direction indicated by the arrow a in the figure, thereby driving the clamping assembly 150 to move closer to or away from the main frame 110, and adjusting the position of the clamp 151 on the clamping assembly 150 in the third direction Z.

[0074] The distance between the arm assembly 140 and the position of the clamp 151 are adjusted by driving the first sliding drive member 123, the rotating drive member 134, the second sliding drive member and the telescopic drive member 146 to correspond to the lifting point on the body in white 210. Figure 3 In the example, the clamp 151 of the clamping device located on the same group of rotating components 130 is connected to the upper side of the same side door opening of the body-in-white 210. When the detection pressure value of the pressure sensor remains unchanged or the change of the detection pressure value is less than a certain value, the body-in-white 210 is hung on the clamp 151. The suction cup 112 is adsorbed on the top surface of the body-in-white 210, the first sliding drive member 123, the rotating drive member 134, the second sliding drive member and the telescopic drive member 146 are controlled to lock or stop moving, the first positioning pin is inserted into the first positioning hole and the second positioning hole 145, thereby locking the first connecting arm 143 and the second connecting arm 144, and the second positioning pin is inserted into the third positioning hole and the fourth positioning hole 149, thereby locking the first reinforcing arm 147 and the second reinforcing arm 148, thereby improving the strength of the boom assembly 140 and improving the safety during the working process. Thereafter, the rotating assembly 130 can be driven to rotate around the first rotating shaft, driving the boom assembly 140 and the clamping assembly 150 to rotate relative to the main frame 110 , thereby driving the body-in-white 210 to flip to a certain angle.

[0075] The hoisting process of the vehicle roof 220 and the side panel subassembly 230 can refer to the hoisting process of the above-mentioned body-in-white 210, and will not be repeated here. Figure 4 As shown, during the hoisting process of the vehicle roof 220, the side of the clamp 151 facing the main frame 110 abuts against one side of the vehicle roof 220, and the suction cup 112 is adsorbed on the other side of the vehicle roof 220; Figure 5As shown, during the hoisting process of the side panel subassembly 230, the clamp 151 of the clamping device located on the same set of rotating components 130 is connected to the upper side of the door opening on the same side panel subassembly 230. It can be understood that when hoisting the side panel subassembly 230, the support member 153 can be driven to rotate around the second rotating shaft so that the clamp 151 rotates to the outside of the vehicle hoist 100 to meet the production requirements of different vehicle models.

[0076] In summary, the embodiment of the present invention provides a vehicle hoist 100 having at least four movements, and the clamping assembly 150 has great adjustment flexibility, which can meet the hoisting requirements of various workpieces and various vehicle models, improve the applicability of the vehicle hoist 100, and reduce development costs.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the present invention, rather than to limit the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention, and these improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A vehicle lifting device (100), characterized in that: include: Main frame (110); A moving component (120), the moving component (120) being slidably connected to the main frame (110), and the moving component (120) being slidable relative to the main frame (110) along a first direction (X); A rotating assembly (130), the rotating assembly (130) being rotatably connected to the moving assembly (120), and the rotating assembly (130) rotating around a first rotating axis; at least two groups of spaced-apart boom assemblies (140), wherein a first end (1401) of the boom assembly (140) is slidably connected to the rotating assembly (130), a second end (1402) of the boom assembly (140) is located on one side of the main frame (110), and the boom assembly (140) is slidable relative to the rotating assembly (130) along a second direction (Y), the second direction intersects the first direction, and the first rotating axis is parallel to the second direction (Y); At least two groups of clamping assemblies (150), each group of the clamping assemblies (150) is connected to the second end (1402) of each group of the boom assemblies (140) in a one-to-one correspondence, the clamping assemblies (150) comprising a clamp (151), the clamp (151) facing one side of the main frame (110) for clamping a workpiece, The boom assembly (140) can be extended or shortened along its own length direction to drive the clamping assembly (150) away from the main frame (110) or close to the main frame (110).

2. The vehicle lifting device (100) according to claim 1, characterized in that: The moving component (120) comprises: A motion frame (121), wherein the motion frame (121) is connected to the rotating assembly (130); a first sliding block (122), the first sliding block (122) being fixedly connected to the moving frame (121), the main frame (110) being provided with a first sliding rail (111) extending along the first direction, the first sliding block (122) being connected to the first sliding rail (111) and being slidable along the first sliding rail (111); A first sliding driving member (123), wherein the first sliding driving member (123) is connected to the moving frame (121) to drive the moving frame (121) to slide relative to the main frame (110).

3. The vehicle lifting device (100) according to claim 1, characterized in that: The rotating assembly (130) comprises: A rotating arm (131), the rotating arm (131) being rotatably connected to the moving assembly (120); A connecting plate (132), wherein the connecting plate (132) is fixedly connected to the rotating arm (131), and the suspension arm assembly (140) is slidably connected to the connecting plate (132); A rotating driving member (134) is connected to the rotating arm (131) to drive the rotating arm (131) to rotate relative to the moving assembly (120).

4. The vehicle lifting device (100) according to claim 3, characterized in that: The connecting plate (132) is provided with a second slide rail (133), the second slide rail (133) extends along the second direction, and the boom assembly (140) is provided with a second sliding block, the second sliding block is connected to the second slide rail (133) and can slide along the second slide rail (133).

5. The vehicle lifting device (100) according to claim 3, characterized in that: The movable assembly (120) and the rotating assembly (130) are each in two groups, and the two groups of the movable assembly (120) are respectively arranged at the two ends of the main frame (110), and the movable assembly (120) and the rotating assembly (130) are connected in a one-to-one correspondence. The boom assembly (140) and the clamping assembly (150) are each in four groups, and the boom assembly (140) and the clamping assembly (150) are connected in a one-to-one correspondence, and each group of the movable assembly (120) is connected to two groups of the boom assembly (140).

6. The vehicle lifting device (100) according to claim 1, characterized in that: The boom assembly (140) comprises: A fixing member (141), wherein the fixing member (141) is slidably connected to the moving component (120); A mounting member (142), wherein the mounting member (142) is connected to the clamping assembly (150); a second sliding driving member, the second sliding driving member being connected to the fixing member (141) so as to drive the fixing member (141) to slide relative to the moving assembly (120); A first connecting arm (143), the first connecting arm (143) being connected to the fixing member (141), the first connecting arm (143) being provided with at least two first positioning holes; A second connecting arm (144), the second connecting arm (144) being connected to the mounting member (142), the second connecting arm (144) being provided with at least two second positioning holes (145); A first positioning pin, the first positioning pin being inserted into the first positioning hole and the second positioning hole (145); A telescopic driving member (146), one end of which is connected to the first connecting arm (143), and the other end of which is connected to the mounting member (142).

7. The vehicle lifting device (100) according to claim 6, characterized in that: The boom assembly (140) also includes a second positioning pin, a first reinforcing arm (147) and a second reinforcing arm (148), one end of the first reinforcing arm (147) is rotatably connected to the moving assembly (120), and the other end is provided with at least two third positioning holes, the second reinforcing arm (148) is connected to the mounting member (142), the second reinforcing arm (148) is provided with at least two fourth positioning holes (149), and the second positioning pin is inserted into the third positioning hole and the fourth positioning hole (149).

8. The vehicle lifting device (100) according to claim 1, characterized in that: The clamping assembly (150) also includes a connecting shaft (152) and a supporting member (153), wherein the connecting shaft (152) is connected to the boom assembly (140), one end of the supporting member (153) is rotatably connected to the connecting shaft (152), and the other end is connected to the clamp (151), and the supporting member (153) rotates around a second rotating shaft, and the second rotating shaft extends along a third direction, and the third direction intersects with both the first direction and the second direction.

9. The vehicle lifting device (100) according to claim 1, characterized in that: The vehicle lifting device (100) further comprises a suction cup (112), wherein the suction cup (112) is used to be connected to a workpiece, and the suction cup (112) is connected to the main frame (110) via a flexible chain (113).

10. The vehicle lifting device (100) according to claim 1, characterized in that: The vehicle hoist (100) further comprises a pressure sensor and a controller, wherein the pressure sensor is arranged on the clamp (151), and the controller is communicatively connected with the pressure sensor, the moving assembly (120), the rotating assembly (130) and the boom assembly (140).

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