Turnover device

Abstract

The utility model belongs to the field of turnover equipment, and particularly relates to a turnover device which is characterized in that when the turnover device is used, two ends of a large-scale boom-shaped workpiece are respectively arranged on hanging belts between two stand columns in two turnover machines, driving assemblies in the two turnover machines act simultaneously, the hanging belts are driven by a driving motor to operate, and the large-scale boom-shaped workpiece is turned over. The workpiece is driven to turn over by utilizing the friction force between the hanging belt and the workpiece, the turning device is simple in structure and low in cost, the workpiece can be safely and reliably turned over, and the production efficiency and the safety degree are effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of turnover device, in particular to a turnover device. BACKGROUND

[0002] In the production and assembly process of large equipment, it is often necessary to perform a turnover operation on a large workpiece (especially a large arm support-shaped workpiece). For example, in the assembly process of a concrete pump truck arm support, a 180° turnover operation is required for the arm support.

[0003] Under the existing technical conditions, it is mostly relied on a simple lifting device to hook a certain part of the workpiece, and the contact part of the object with the ground is used as the pivot for the turnover. There are many uncertain factors in the operation process of this kind of turnover, and the safety is low, and the workpiece is easy to fall and cause damage. CONTENT OF THE UTILITY MODEL

[0004] The embodiment of the present application provides a turnover device, which aims to realize safe and reliable turnover operation on a large arm support-shaped workpiece.

[0005] To achieve the above-mentioned purpose, the present application provides a turnover device, comprising two turnover machines which are spaced apart in a first direction, the turnover machine comprising a bearing frame, a lifting belt and a driving assembly, the bearing frame comprising a base and two upright columns arranged on the base, the two upright columns being spaced apart in a second direction, the second direction being perpendicular to the first direction, the driving assembly comprising a driving pulley, a driven pulley, a driving motor and a plurality of guide wheels, the driving pulley and the driven pulley being respectively rotatably arranged at the upper ends of the two upright columns, the driving motor being connected to the driving pulley, the plurality of guide wheels being respectively arranged on the base and the two upright columns, the lifting belt being arranged between the driving pulley, the driven pulley and the plurality of guide wheels, the part of the lifting belt between the two upright columns being naturally drooping, and the lifting belt being used for hoisting the workpiece.

[0006] Optionally, the turnover device further comprises a righting and centering mechanism, the righting and centering mechanism being arranged on the base on the side of one of the turnover machines away from the other turnover machine, and the righting and centering mechanism being used for righting and clamping the workpiece located on the two turnover machines.

[0007] Optionally, the righting and centering mechanism comprises a driving mechanism arranged on the base and two clamping arms arranged on the driving mechanism, and the two clamping arms are capable of relatively opening and closing movement in the second direction under the action of the driving mechanism.

[0008] Optionally, the spacing of the two bearing frames in the first direction is adjustable.

[0009] Optionally, a guide rail extending along the first direction is arranged on the ground below the bearing frame, and a walking mechanism capable of moving along the guide rail is arranged on the base.

[0010] Optionally, two guide rails are arranged, and the walking mechanism comprises two rows of rolling wheels arranged on the lower end of the base, a motor fixed on the lower end of the base, and a gear mounted on the output shaft of the motor, the two rows of rolling wheels are arranged on the two guide rails respectively, and the side surface of one of the guide rails is provided with a rack extending along the length direction of the guide rail, and the rack and the gear are in meshing relationship.

[0011] Optionally, the turnover device further comprises two jacks, and the two jacks are arranged between the two turnover machines, and the two jacks are used for jointly jacking the workpiece.

[0012] Optionally, the distance between the two jacks in the first direction is less than the length of the workpiece to be turned over.

[0013] The turnover device provided by the present application has the advantages that: compared with the prior art, when the turnover device is used, the two ends of the large arm frame-shaped workpiece are respectively placed on the lifting belts between the two upright columns in the two turnover machines, the driving assemblies in the two turnover machines simultaneously act, the driving motor drives the lifting belts to rotate, and the workpiece is turned over by the friction force between the lifting belts and the workpiece. The turnover device has simple structure and low cost, can safely and reliably turn over the workpiece, and effectively improves the production efficiency and safety degree. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0015] Among them:

[0016] Figure 1 is the overall structure of the turnover device shown in an embodiment of the present application Figure 1 ;

[0017] Figure 2 is the overall structure of the turnover device shown in an embodiment of the present application Figure 2 ;

[0018] Figure 3 is the front view of the turnover device shown in an embodiment of the present application;

[0019] Figure 4is a perspective structural schematic diagram of a turnover machine in a turnover device according to an embodiment of the present application;

[0020] Figure 5 is a sectional structural schematic diagram of a turnover machine in a turnover device according to an embodiment of the present application;

[0021] Figure 6 is a perspective structural schematic diagram of a righting and centering mechanism in a turnover device according to an embodiment of the present application;

[0022] Figure 7 is an AGV transfer trolley with a V-shaped seat;

[0023] Figure 8 is an AGV transfer trolley with a lifting platform.

[0024] Legend:

[0025] 10, workpiece;

[0026] 100, turnover machine;

[0027] 110, bearing frame; 111, base; 112, stand;

[0028] 120, sling;

[0029] 131, driving pulley; 132, driven pulley; 133, driving motor; 134, upper guide wheel;

[0030] 135, lower guide wheel; 136, limit wheel;

[0031] 200, righting and centering mechanism;

[0032] 210, driving mechanism;

[0033] 220, clamping arm;

[0034] 230, roller;

[0035] 300, walking mechanism;

[0036] 400, guide rail;

[0037] 500, rack;

[0038] 600, jacking machine. DETAILED DESCRIPTION

[0039] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The preferred embodiments of the present application are shown in the drawings. However, the present application can be implemented in many other different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0040] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0041] It should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0042] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the specification of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application.

[0043] For ease of understanding, Figure 1 , Figure 2 and Figure 6 An XY rectangular coordinate system was established, in which the direction of the X-axis is the first direction and the direction of the Y-axis is the second direction.

[0044] Embodiments of this application provide a flipping device, such as... Figures 1-5 As shown, the flipping device includes two flipping machines 100 spaced apart in a first direction. Each flipping machine 100 includes a support frame 110, a sling 120, and a drive assembly. The support frame 110 includes a base 111 and two columns 112 mounted on the base 111. The two columns 112 are spaced apart in a second direction, perpendicular to the first direction. The drive assembly includes a drive pulley 131, a driven pulley 132, a drive motor 133, and multiple guide wheels. The drive pulley 131 and... Driven pulleys 132 are rotatably mounted on the upper ends of the two columns 112. A drive motor 133 is connected to the drive pulley 131 to drive the drive pulley 131 to rotate. Multiple guide wheels are respectively mounted on the base 111 and the two columns 112. A sling 120 is wound around the drive pulley 131, the driven pulley 132 and the multiple guide wheels. The sling 120 operates under the rotation of the drive pulley 131. The part of the sling 120 located between the two columns 112 hangs down naturally for lifting the workpiece.

[0045] In use, the two ends of the large boom-shaped workpiece are placed on the slings 120 located between the two columns 112 in the two flippers 100. The drive components in the two flippers 100 are activated simultaneously, driving the slings 120 to rotate through the drive motor 133, and using the friction between the slings 120 and the workpiece to flip the workpiece.

[0046] This flipping device has a simple structure and low cost, and can safely and reliably flip workpieces, effectively improving production efficiency and safety.

[0047] Among them, such as Figure 5 As shown, the multiple guide wheels include two upper guide wheels 134 and two lower guide wheels 135. The two upper guide wheels 134 are rotatably mounted on the upper ends of the two columns 112 and are located below the driving pulley 131 and the driven pulley 132, respectively. The two lower guide wheels 135 are rotatably mounted at the connection between the lower ends of the two columns 112 and the base 111. The portion of the sling 120 between the driving pulley 131, the upper guide wheels 134, the lower guide wheels 135 and the driven pulley 132 is approximately U-shaped, and the portion between the two columns 112 is approximately V-shaped.

[0048] Furthermore, such as Figure 5 As shown, the support frame 110 is also provided with two sets of limiting wheels 136. The two sets of limiting wheels 136 are respectively set on the opposite inner sides of the upper ends of the two columns 112. Each set of limiting wheels 136 includes two limiting wheels 136 arranged at intervals. The part of the sling 120 used to lift the workpiece is located between the two sets of limiting wheels 136.

[0049] In one embodiment, such as Figures 1-3 As shown, the flipping device also includes a centering and straightening mechanism 200, which is disposed on a base 111 on the side of one of the flipping machines 100 away from the other flipping machine 100. The centering and straightening mechanism 200 is used to straighten and clamp the workpieces located on the two flipping machines 100 to improve the accuracy of the workpiece position before and after flipping.

[0050] Combination Figure 6 As shown, the centering and alignment mechanism 200 includes a drive mechanism 210 disposed on the base 111 and two clamping arms 220 disposed on the drive mechanism 210. The two clamping arms 220 can perform relative opening and closing movements in the second direction under the action of the drive mechanism 210.

[0051] Specifically, the drive mechanism 210 can be implemented by two sets of horizontally and relatively arranged linear slides / cylinders / electric cylinders, or by a lead screw and nut drive in conjunction with a motor. Specifically, the motor is connected to one end of the lead screw, which has two sections of transmission threads with opposite directions. Two nuts are respectively rotatably mounted on the two sections of transmission threads. The lower ends of the two clamping arms 220 are respectively fixed to the two nuts, and the lower ends of the two clamping arms 220 are slidably connected to the linear guide rail extending along the second direction.

[0052] Furthermore, rollers 230 are vertically spaced on the inner sides of the two clamping arms 220. The rollers 230 are used to reduce friction on the workpiece during the clamping and straightening process of the two clamping arms 220.

[0053] In one embodiment, such as Figures 1-3 As shown, the spacing between the two support frames 110 in the first direction is adjustable to accommodate booms of different lengths.

[0054] In one specific embodiment, such as Figures 1-3 As shown, a guide rail 400 extending in a first direction is provided on the ground below the support frame 110, and a traveling mechanism 300 (such as a ground-rail trolley) capable of moving along the guide rail 400 is provided on the base 111. There are two guide rails 400. The traveling mechanism 300 includes two rows of rolling wheels (not shown in the figure) rolling on the lower end of the base 111, a motor (not shown in the figure) fixed to the lower end of the base 111, and a gear (not shown in the figure) mounted on the output shaft of the motor. The two rows of rolling wheels are respectively rolling on the two guide rails 400. A rack 500 extending along the length of the guide rail 400 is provided on the inner side of one of the guide rails 400. The rack 500 meshes with the gear. The motor drives the gear to rotate, and the gear rolls along the rack 500, thereby enabling the support frame 110 to move in the first direction and adjusting the distance between the two support frames 110.

[0055] In one specific embodiment, such as Figures 1-3 As shown, the tilting device also includes two lifting machines 600, which are spaced apart between the two tilting machines 100. The two lifting machines 600 are used to lift the workpiece together. Specifically, the lifting machines 600 can be implemented using a vertically arranged pneumatic / electric / scissor-type lifting mechanism, and a V-shaped seat for positioning the workpiece can be provided on the top of the lifting machine 600.

[0056] It should be noted that the distance between the two lifting machines 600 in the first direction is less than the length of the workpiece being flipped.

[0057] With the above setup, and based on the adjustable spacing between the two support frames 110, the lifting machine 600 is used in conjunction with... Figures 7-8The AGV shown can perform loading and unloading operations on the two flipping machines 100. The specific process is as follows:

[0058] A 1.5T AGV trolley with a lifting platform transports workpiece 10 (taking the basic arm of the crane as an example) from the vertical warehouse area into the space between the two lifting machines 600 of the tilting device, and the AGV trolley sends a positioning command.

[0059] 2. After receiving the instruction, the two lifting machines 600 slowly rise to a certain position until the V-shaped plane position completely lifts the basic arm away from the AGV trolley's support platform; at this time, the AGV trolley receives the instruction to drive away from the working area.

[0060] 3. After the AGV trolley has completely left, the two lifting machines 600 lift the basic boom to the lowest position. At this time, the copper sleeve pressing machine is operated manually to press the copper sleeves on both sides of the tail of the basic boom. The overhead crane is used to lift and assemble the luffing pins onto the luffing support of the basic boom.

[0061] 4. After the two parts are assembled manually, rotate the copper sleeve press machine back to its original position. Only after the manual confirmation that everything is correct can the button be pressed to start the basic arm flipping operation.

[0062] 5. At this point, the two lifting machines have raised their basic booms to their highest positions (600 lifts each).

[0063] 6. The two traveling mechanisms 300 move towards the base arm at the same time. After moving to the appropriate position according to the specifications of the base arm, they stop. Then the lifting machine 600 slowly descends until the slings 120 of the two tilting machines 100 completely catch the base arm. The two lifting machines 600 continue to descend to the lowest point.

[0064] 7. After the sling 120 of the tilting machine 100 catches the basic arm body, it rotates 180 degrees in the same direction with the center of the basic arm as the rotation center until the arc surface of the basic arm is facing down (at this time, the basic arm may be tilted).

[0065] 8. The centering and alignment mechanism 200 moves closer to the center of the basic arm according to the specifications of the basic arm. At this time, the skewed basic arm is automatically guided to the center by the centering and alignment mechanism 200 on the sling 120.

[0066] 9. When the two lifting machines 600 slowly rise to the point where the V-seat just touches the arc surface of the basic arm, the centering and alignment mechanism 200 opens and returns to its original position, and then the two lifting machines 600 lift the basic arm to its highest position.

[0067] 10. At this time, the two walking mechanisms 300 return to their original positions on both sides, and call the 5T AGV trolley with V-seat to enter the designated position between the two lifting machines 600. After the AGV trolley is in place, the instruction is sent, and the two lifting machines 600 slowly descend until the V-seat on the AGV trolley catches the basic arm. After the two lifting machines 600 have completely descended into place, the AGV trolley transports the basic arm to the next work station.

[0068] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0069] The above embodiments are merely illustrative of several implementation methods of this application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A flipping device, characterized in that, The device includes two tilting machines spaced apart in a first direction. Each tilting machine includes a support frame, a sling, and a drive assembly. The support frame includes a base and two columns mounted on the base. The two columns are spaced apart in a second direction, which is perpendicular to the first direction. The drive assembly includes a drive pulley, a driven pulley, a drive motor, and multiple guide wheels. The drive pulley and the driven pulley are rotatably mounted on the upper ends of the two columns. The drive motor is connected to the drive pulley. The multiple guide wheels are respectively mounted on the base and the two columns. The sling is wound around the drive pulley, the driven pulley, and the multiple guide wheels. The portion of the sling between the two columns hangs down naturally for suspending workpieces.

2. The flipping device according to claim 1, characterized in that, The flipping device further includes a straightening and centering mechanism, which is disposed on the base of one of the flipping machines on the side opposite to the other flipping machine. The straightening and centering mechanism is used to straighten and clamp the workpieces located on the two flipping machines.

3. The flipping device according to claim 2, characterized in that, The centering and alignment mechanism includes a drive mechanism mounted on the base and two clamping arms mounted on the drive mechanism. The two clamping arms can perform relative opening and closing movements in the second direction under the action of the drive mechanism.

4. The flipping device according to any one of claims 1-3, characterized in that, The spacing between the two support frames in the first direction is adjustable.

5. The flipping device according to claim 4, characterized in that, A guide rail extending along the first direction is provided on the ground below the support frame, and a walking mechanism capable of moving along the guide rail is provided on the base.

6. The flipping device according to claim 5, characterized in that, The guide rails are provided in two rows. The walking mechanism includes two rows of rolling wheels that are rolled on the lower end of the base, a motor fixed on the lower end of the base, and a gear mounted on the output shaft of the motor. The two rows of rolling wheels are rolled on the two guide rails respectively. One of the guide rails has a rack extending along the length of the guide rail on its side. The rack meshes with the gear.

7. The flipping device according to claim 4, characterized in that, The flipping device also includes two lifting machines, which are spaced apart between the two flipping machines and are used to lift the workpiece together.

8. The flipping device according to claim 7, characterized in that, The distance between the two lifting machines in the first direction is less than the length of the workpiece being flipped.

Images