Turnover device capable of turning over carrier
By combining a lever and a floating mechanism with a pulley structure to create a tilting device, the design difficulty and high cost caused by axial docking in existing technologies have been solved, achieving low-cost, stable and efficient vehicle tilting.
Patent Information
- Application Number
- CN202520089148.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-14
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2035-01-14
AI Technical Summary
The existing tilting device of the tilting vehicle requires vertical translational freedom when axially docking, which leads to high design difficulty, high cost and affects the production line cycle time.
The rotating seat is rotated by a lever, combined with a floating mechanism and pulley structure to reduce docking difficulty and friction. A cylinder is used as the vertical drive unit to reduce control complexity.
The design of the flipping device is low-cost and easy to connect, which avoids obstructing the movement of the vehicle, keeps the production line pace from slowing down, and reduces the difficulty of control and friction loss.
Smart Images
Figure CN223813050U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to automatic equipment technical field, concretely relates to a turnover device of overturnable carrier. BACKGROUND
[0002] Some products with more complicated processes need to be processed from opposite sides of the workpiece in the production process, so the workpiece needs to be overturned multiple times. Generally, a robot is arranged at the work station where overturning is needed in the automatic line, and the robot needs to have multi-degree-of-freedom action capability of taking out the workpiece from the carrier, overturning the workpiece, and putting the workpiece into the carrier again. The arrangement of multiple robots makes the cost of the automatic line higher.
[0003] The existing overturnable carrier includes a fixed seat and a rotating seat rotatably connected to the fixed seat. A workpiece placing position is arranged on the rotating seat, and the workpiece placing position is open on the side and is provided with a machining communication port at the bottom. When the overturnable carrier is used, the rotating seat is driven to rotate 180 degrees by a turnover device, and then the back of the workpiece can be machined from above through the machining communication port.
[0004] Generally, the driving structure of the turnover device is arranged in the form of a rotary clutch with the rotating seat to axially abut against the rotating seat from the axis of the rotating seat and coaxially drive the rotating seat to rotate.
[0005] However, the advancing direction of the carrier is consistent with the axial direction of the axis of the rotating seat. The axial abutment requires the driving structure of the turnover device to have a translational degree of freedom perpendicular to the axial plane and also requires an axial translational degree of freedom. In addition, the driving structure needs to enter the front of the carrier. In order to ensure that its entry and exit do not affect the normal advancement of the carrier, the production line beat needs to be slowed down. In addition, the axial abutment requires a high progress requirement, which increases the design difficulty and the translational control difficulty of the driving structure. UTILITY MODEL CONTENTS
[0006] The utility model aims to provide a turnover device of an overturnable carrier which has a lower cost, is easy to abut against, and does not hinder the advancement of the carrier.
[0007] The turnover device of the overturnable carrier provided by the utility model can overturn the overturnable carrier, the overturnable carrier includes a rotating seat rotatable about an axis; a swing rod is arranged on the rotating seat, and the swing rod rotates synchronously with the rotating seat; the turnover device includes: a translation mechanism including a moving end, the moving end being movable in a plane perpendicular to the axis; a floating mechanism connected to the moving end, the floating mechanism including a floating end, the floating end being vertically floatable; and a driving structure connected to the floating end, used for lifting the swing rod to swing the swing rod upward and used for pressing the swing rod to swing the swing rod downward.
[0008] From the above scheme can be seen, in order to avoid hindering the carrier forward and avoid slowing down the line beat, relative to the rotating clutch axial docking means, the utility model considers with the mode of the driving lever to drive the rotating seat of the carrier, the driving structure is far away from the carrier and can enter and exit the matching position faster when the driving lever extends to the outer periphery of the rotating seat; in addition, the driving structure only needs to meet the requirements of the plane movement freedom under the setting, which reduces the cost, reduces the design difficulty and reduces the docking difficulty; further, the utility model also makes further improvement for reducing the control difficulty and reducing the cost, mainly setting the floating mechanism, considering that the action of lifting the driving lever and pressing down the driving lever is realized by the driving structure, and the driving structure for lifting the driving lever is located below the driving lever, and the driving structure for pressing down the driving lever is located above the driving lever, so that the driving structure is at different heights under the two different driving conditions, and the driving structure can reach the two different heights during the 180-degree turning action of the rotating seat, so that the vertical driving unit with low cost and single stroke such as air cylinder cannot be used in the translation mechanism, and the cost is high and the control difficulty is also increased. The setting of the floating mechanism makes the driving structure have a floating distance, so that even if the air cylinder is used as the vertical driving unit, even if the moving end is at the same horizontal position, the driving structure can also float between the two different heights, and the upward floating of the driving structure is naturally completed by using the reaction force of pressing down the driving lever, which is a clever structure, reduces the cost and reduces the control difficulty.
[0009] A further scheme is that the driving structure comprises a pulley, and a rotation center line of the pulley is parallel to the shaft center, and the pulley cooperates with the driving lever.
[0010] From the above, it can be seen that the setting of the pulley avoids friction between the driving structure and the driving lever, improves the smoothness of the action and reduces the loss.
[0011] A further scheme is that an outer periphery of the pulley is provided with a groove surrounding itself, and the driving lever cooperates with the groove.
[0012] From the above, it can be seen that the cooperation of the groove and the driving lever can achieve the positioning effect in the axial direction, improving the stability of the action process.
[0013] A further scheme is that the driving lever is a round rod, and a bottom surface of the groove is an arc surface.
[0014] From the above, it can be seen that under this setting, when the outer periphery surface of the driving lever cooperates with the bottom surface of the groove, the bottom surface of the groove can tend to guide the driving lever to the central deep part of the groove, prevent the driving lever from coming out of the groove, and ensure that the driving action is completed smoothly.
[0015] A further scheme is that a floating stroke of the floating end is equal to the sum of a first size of the driving lever and a second size of the pulley; the first size is a cross-sectional size of the driving lever perpendicular to the shaft center; and the second size is a minimum diameter of an abutting surface of the pulley abutting against the driving lever.
[0016] From the above, under this setting, the distance between the two limit positions of the up and down floating of the floating end, that is, the floating stroke is exactly the height difference of the two different positions of the pulley in two different driving conditions, and the cooperation effect of the driving structure and the swing rod is better.
[0017] Further, the swing rod is a round rod, and the first dimension is the diameter of the swing rod.
[0018] Further, the moving end comprises a connecting block, and the connecting block is provided with a through hole arranged vertically; the floating end comprises a floating frame and a sliding rod, an inner periphery of the floating frame is provided with a floating space, the sliding rod is arranged vertically in the floating space, the connecting block is arranged in the floating space, and the sliding rod passes through the through hole; and the floating mechanism further comprises a spring, the spring is sleeved on the sliding rod, and the spring abuts between the floating frame and the connecting block, and the floating frame is kept at the lower limit position under the restoring force of the spring.
[0019] From the above, under this setting, the vertical floating of the floating frame is realized by the spring.
[0020] Further, the floating frame comprises an abutting surface arranged towards the floating space, and the spring abuts against the abutting surface; and the floating frame further comprises a limiting protrusion protruding from the abutting surface towards the floating space, and the limiting protrusion is in limiting cooperation with the connecting block in the vertical direction.
[0021] From the above, the vertical floating of the floating frame is realized by the spring, and the inaccuracy of the floating stroke may be caused by the instability of the compression degree of the spring, which will affect the stability and reliability of the driving cooperation. Therefore, the utility model further comprises a limiting protrusion, the limiting protrusion is higher than the spring, and the limiting protrusion can abut against the connecting block before the spring is compressed to the maximum, and therefore, the floating stroke is accurately limited by the limiting protrusion.
[0022] Further, the translation mechanism comprises a horizontal moving assembly and a vertical moving assembly; the horizontal moving assembly comprises a platform, a motor, a screw rod, a screw nut, a sliding rail assembly and a horizontal moving piece; the vertical moving assembly comprises a pneumatic cylinder and a moving end; the motor and the sliding rail assembly are arranged on the platform, the screw rod is arranged horizontally, the motor drives the screw rod to rotate, the screw nut is fixedly connected with the horizontal moving piece, the screw nut is in cooperation with the screw rod, and the horizontal moving piece is slidingly connected with the platform through the sliding rail assembly; the pneumatic cylinder is fixedly connected with the horizontal moving piece, the pneumatic cylinder is arranged vertically, and the moving end is connected to the end of the piston rod of the pneumatic cylinder.
[0023] From the above, the arrangement of the screw rod assembly makes the horizontal moving assembly have better stability and better moving precision, and due to the arrangement of the floating mechanism, the pneumatic cylinder can meet the action requirement of the vertical moving assembly, thereby reducing the cost.
[0024] A further embodiment is that, along the axial direction of the axis, the horizontal moving member extends into an elongated shape, and at least one side of the horizontal moving member is sequentially connected to a vertical moving component, a floating mechanism, and a driving structure; and / or, along the axial direction of the axis, at least one side of the floating end is connected to a driving structure.
[0025] As can be seen from the above, under this setting, a more suitable position can be selected to set the drive structure according to different layouts on the automated production line, thereby improving the applicability of the flipping device. Attached Figure Description
[0026] Figure 1 This is a structural diagram showing the combination of the flipping device of the flipping vehicle of this utility model and the flipping vehicle.
[0027] Figure 2 This is a structural diagram of the moving end, floating mechanism, and driving structure in an embodiment of the flipping device of the flipping vehicle of this utility model.
[0028] Figure 3 This is a structural diagram of an embodiment of the flipping device of the flippable vehicle of this utility model.
[0029] Figure 4 This is a schematic diagram of an embodiment of the flipping device of the flipping vehicle of this utility model and the flipping vehicle in the first state.
[0030] Figure 5 This is a schematic diagram of an embodiment of the flipping device of the flippable vehicle of this utility model and the flippable vehicle in the second state.
[0031] Figure 6 This is a schematic diagram of an embodiment of the flipping device of the flipping vehicle of this utility model and the flipping vehicle in a third state.
[0032] Figure 7 This is a schematic diagram of an embodiment of the flipping device of the flipping vehicle of this utility model and the flipping vehicle in the fourth state.
[0033] Figure 8 This is a schematic diagram illustrating the design principle of the floating stroke in an embodiment of the flipping device of the flipping vehicle of this utility model. Detailed Implementation
[0034] See Figure 1 , Figure 4 and Figure 7 The tiltable carrier includes a fixed base 91 and a rotating base 92 rotatably connected to the fixed base 91 about an axis 90. A swing rod 93, which is a round rod, is provided at the circumference of the rotating base 92. The swing rod 93 rotates synchronously with the rotating base 92 and can swing in a plane perpendicular to the axis 90. Furthermore, to ensure the rotating base 92 can remain stable... Figure 4The front face is upwardly shown and the rotating seat 92 is ensured to be stable in the Figure 7 The back face is upwardly shown after the turning, and the turning device is also provided with a first elastic buckle 941 and a second elastic buckle 942, which are respectively arranged on the horizontal two sides of the shaft 90. The horizontal swing rod 93 of the rotating seat 92 in the front face upwardly state is buckled with the first elastic buckle 941, and the horizontal swing rod 93 of the rotating seat 92 in the back face upwardly state is buckled with the second elastic buckle 942. In addition, when the swing rod 93 needs to be clamped into or out of the first elastic buckle 941 or the second elastic buckle 942, the swing rod needs to apply a force to the elastic buckle to open the entrance of the elastic buckle. The axial direction of the shaft 90 is the first horizontal direction.
[0035] Referring to Figures 1 to 3 , the turning device includes a translation mechanism 2, a floating mechanism 3, and a driving structure 4.
[0036] The translation mechanism 2 includes a horizontal moving assembly and a vertical moving assembly. The horizontal moving assembly includes a platform 1, a motor 21, a lead screw 22, a lead screw nut 23, a horizontal moving piece 24, and a slide rail assembly 25. The vertical moving assembly includes a vertical plate 26, an air cylinder 27, and a moving end 28.
[0037] The platform 1 is fixed at a high position by a support. The motor 21 is fixed on the platform 1, and the output shaft of the motor 21 extends along a second horizontal direction perpendicular to the shaft 90. The lead screw 22 also extends along the second horizontal direction. The lead screw 22 is coaxially connected with the output shaft of the motor 21. The motor 21 drives the lead screw 22 to rotate.
[0038] Two groups of slide rail assemblies 25 are installed on the platform 1. The slide rail assemblies 25 extend along the second horizontal direction, and the two groups of slide rail assemblies 25 are respectively arranged on opposite sides of the lead screw 22 along the first horizontal direction. The horizontal moving piece 24 is slidingly connected with the platform 1 through the two groups of slide rail assemblies 25. The lead screw nut 23 is fixedly connected with the horizontal moving piece 24. The lead screw nut 23 cooperates with the lead screw 22. In this way, the motor 21 can drive the horizontal moving piece 24 to translate along the second horizontal direction when the motor 21 works.
[0039] Referring to Figure 3 , the horizontal moving piece 24 is an elongated plate extending along the second horizontal direction. In this embodiment, one side of the horizontal moving piece 24 is sequentially connected with the vertical moving assembly, the floating mechanism 3, and the driving structure 4 along the second horizontal direction. In fact, the other side of the horizontal moving piece 24 also has a reserved mounting position 20 for mounting a second vertical moving assembly, a floating mechanism 3, and a driving structure 4.
[0040] The upper end of the vertical plate 26 is fixedly connected to the horizontal moving part 24, and a pneumatic cylinder 27 is arranged vertically on the vertical plate 26, with the piston rod end of the pneumatic cylinder 27 arranged downward, and a moving end 28 connected to the piston rod end of the pneumatic cylinder 27.
[0041] The moving end 28 is a connecting block, and two vertical through holes 280 are arranged on the connecting block. The floating mechanism 3 comprises a floating end 31 and a spring 33, and the floating end 31 comprises a floating frame 310 and a slide rod 32. The inner periphery of the floating frame 310 is provided with a floating space 300, and two slide rods 32 are arranged vertically in the floating space 300, and the connecting block is arranged in the floating space 300, and the two slide rods 32 pass through the two through holes 280 respectively, so that the floating frame 310 can slide up and down relative to the moving end 28.
[0042] Further, two springs 33 are respectively sleeved on the two slide rods 32, and the springs 33 abut between the floating frame 310 and the connecting block. Specifically, the inner side of the lower part of the floating frame 310 is provided with an abutting surface 311 upwardly arranged toward the floating space 300, the lower end of the spring 33 abuts on the abutting surface 311, and the upper end of the spring 33 abuts on the lower side of the connecting block. Under the restoring force of the spring 33, the floating frame 310 is kept in the lower limit position.
[0043] The floating frame 310 further comprises a limiting protrusion 312 upwardly protruding from the abutting surface 311 toward the floating space 300, and a limiting boss 313 downwardly protruding from the upper part of the inner side toward the floating space 300, and the limiting protrusion 312 and the limiting boss 313 are arranged vertically opposite and spaced apart. Under this arrangement, as shown in Figure 2 , the floating frame 310 in the lower limit position abuts against the limiting boss 313, and the floating frame 310 in the upper limit position abuts against the limiting protrusion 312, that is, the floating space of the floating frame 310 is limited in the interval between the limiting protrusion 312 and the limiting boss 313, and the vertical dimension of the interval and the vertical dimension of the connecting block determine the vertical floating stroke of the floating frame 310.
[0044] Referring to Figures 1 to 3 , the driving structure 4 is a pulley, and in the first horizontal direction, two driving structures 4 are respectively arranged on the opposite sides of the bottom of the floating frame 310, and the rotation center line of the pulley is parallel to the shaft center 90. Further, in order to match the cylindrical outer contour of the swing rod 93, the outer periphery of the pulley is provided with a groove 41 around itself, the bottom surface of the groove 41 is an arc surface, and the bottom surface of the groove 41 is an abutting surface 411 abutting against the swing rod 93.
[0045] Referring to Figure 2 and Figure 4, the initial state, the rotating seat 92 is facing upwards, the swing lever 93 is horizontal and buckled with the first elastic buckle 941; the initial state, the floating frame 310 is kept in the lower limit position under the action of the spring 33. The translation mechanism 2 drives the lower end 28, the floating mechanism 3 and the driving structure 4 can move in the plane perpendicular to the shaft 90 (the plane where the paper is located) Figure 4 Firstly, the translation mechanism 2 drives the driving structure 4 to reach the swing lever 93 directly below.
[0046] Referring to Figure 4 and Figure 5 , the translation mechanism 2 drives the driving structure 4 upwards, and the driving structure 4 can provide upward force to make the swing lever 93 break away from the first elastic buckle 941 and swing upwards.
[0047] Referring to Figure 5 and Figure 6 , the translation mechanism 2 drives the driving structure 4 to continue to push the swing lever 93 to swing, one of the settings is that the rotating seat 92 is not restricted during rotation, and under the action of the swing lever 93 and the rotating seat 92 and the inertial force, the swing lever 93 can be rotated to the position to be buckled (the implementation position shown in Figure 5 ) without the action of the driving structure 4 after the driving structure 4 pushes the swing lever 93 to a certain angle; another setting is that the rotating seat 92 is restricted during rotation, and the restriction is, for example, damping structure or floating stop structure, and the driving structure 4 needs to continuously push the swing lever 93 until it reaches the position to be buckled.
[0048] Referring to Figure 6 and Figure 7 , then the translation mechanism 2 drives the driving structure 4 to move downwards to press the swing lever 93. Because the opening starting force of the second elastic buckle 942 is greater than the floating starting force of the floating frame 310, the floating frame 310 moves upwards to the upper limit position relative to the lower end 28 before the second elastic buckle 942 is opened, and at this time, the lower end 28 is in abutment with the limiting protrusion 312. Finally, the second elastic buckle 942 is opened by pressing, the swing lever 93 enters the buckle position of the second elastic buckle 942, the rotating seat 92 is turned by 180 degrees to complete the turnover, and reaches the state of facing upwards.
[0049] Mainly, the utility model considers driving the rotating seat 92 of the carrier by the swing lever 93, the swing lever 93 extends to the outer periphery of the rotating seat 92, so that the driving structure 4 is away from the carrier and can enter and exit the matching position faster, and under the setting, the driving structure 4 only needs to have the plane movement degree of freedom, which meets the requirements, reduces the cost, reduces the design difficulty and reduces the docking difficulty.
[0050] Referring to Figure 4 , Figure 7 and Figure 8In this embodiment, the floating stroke 'a' of the floating end 31 is equal to the sum of the first dimension of the swing rod 93 and the second dimension of the pulley of the driving structure 4. The first dimension is the cross-sectional dimension of the swing rod 93 perpendicular to the axis 90, which in this embodiment is the diameter of the swing rod 93. The second dimension is the minimum diameter of the contact surface 411 of the pulley. Specifically, see [link to documentation]. Figure 3 Since the contact surface 411 is an arc surface, the aforementioned minimum diameter is the diameter of the concave bottom of the contact surface 411 with the rotation center line of the pulley as the center.
[0051] Under this setting, regardless of whether the driving structure 4 is in a certain state... Figure 4 The starting position for lifting the horizontal lever 93 shown is still in the horizontal position below the lever. Figure 7 The downward pressure end position above the horizontal swing arm 93, as shown, is such that the moving end 28 is located at the first horizontal height a; see also Figure 5 and Figure 6 The translation mechanism 2 drives the driving structure 4 so that during the swing of the swing arm 93, the moving end 28 moves from the first horizontal height a to the second horizontal height b, moves horizontally, and then moves back from the second horizontal height b to the first horizontal height a. Due to the setting of the floating mechanism 3, the moving end 28 only needs to move between two height positions. Therefore, without considering multi-stage strokes, a powerful and low-cost cylinder can be selected as the vertical drive unit.
[0052] In other embodiments, the driving structure is a protrusion or column extending outward relative to the floating end.
[0053] In other embodiments, the floating end can be a floating block or a floating plate.
[0054] In other embodiments, the lever can be a square tube.
[0055] Finally, it should be emphasized that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1.A turnover device of a turnover vehicle, the turnover vehicle comprising a rotating seat rotatable about an axis; characterized in that, a swing lever is arranged on the rotating seat and rotates synchronously with the rotating seat; the turnover device comprises: a translation mechanism comprising a moving end movable in a plane perpendicular to the axis; a floating mechanism connected to the moving end, the floating mechanism comprising a floating end vertically floatable; a driving structure connected to the floating end, the driving structure being configured to lift the swing lever to swing the swing lever upward and to press the swing lever downward to swing the swing lever downward. 2.The turnover device of the turnover vehicle according to claim 1, characterized in that: the driving structure comprises a pulley, a center line of rotation of the pulley being parallel to the axis, and the pulley cooperating with the swing lever. 3.The turnover device of the turnover vehicle according to claim 2, characterized in that: an outer periphery of the pulley is provided with a groove around the pulley, and the swing lever cooperates with the groove. 4.The turnover device of the turnover vehicle according to claim 3, characterized in that: the swing lever is a round rod, and a bottom surface of the groove is an arc surface. 5.The turnover device of the turnover vehicle according to claim 2, characterized in that: a floating stroke of the floating end is equal to a sum of a first dimension of the swing lever and a second dimension of the pulley; the first dimension is a cross-sectional dimension of the swing lever perpendicular to the axis; the second dimension is a minimum diameter of an abutting surface of the pulley abutting against the swing lever. 6.The turnover device of the turnover vehicle according to claim 5, characterized in that: the swing lever is a round rod, and the first dimension is a diameter of the swing lever. 7.The turnover device of the turnover vehicle according to any one of claims 1 to 6, characterized in that: the moving end comprises a connecting block, the connecting block being provided with a through hole arranged vertically; the floating end comprises a floating frame and a slide rod, an inner periphery of the floating frame is provided with a floating space, the slide rod is arranged vertically in the floating space, the connecting block is arranged in the floating space, and the slide rod passes through the through hole; the floating mechanism further comprises a spring, the spring is sleeved on the slide rod, the spring abuts between the floating frame and the connecting block, and the floating frame is kept at a lower limit position under a restoring force of the spring. 8.The turnover device of the turnover vehicle according to claim 7, characterized in that: the floating frame comprises an abutting surface arranged toward the floating space, and the spring abuts against the abutting surface; the floating frame further comprises a limiting protrusion protruding from the abutting surface toward the floating space, and the limiting protrusion is in limiting cooperation with the connecting block in the vertical direction. 9.The turnover device of the turnover vehicle according to any one of claims 1 to 6, characterized in that: the translation mechanism comprises a horizontal moving assembly and a vertical moving assembly; the horizontal moving assembly comprises a platform, a motor, a lead screw, a lead screw nut, a slide rail assembly and a horizontal moving piece; the vertical moving assembly comprises a cylinder and the moving end. The motor and the slide rail assembly are arranged on the platform, the screw rod is arranged horizontally, the motor drives the screw rod to rotate, the screw rod nut is fixedly connected with the horizontal moving piece, the screw rod nut cooperates with the screw rod, and the horizontal moving piece is slidably connected with the platform through the slide rail assembly. The cylinder is fixedly connected with the horizontal moving piece, the cylinder is arranged vertically, and the moving end is connected to the piston rod end of the cylinder. 10.The turnover device of the reversible carrier according to claim 9, characterized in that: In the axial direction of the axis, the horizontal moving piece is extended into an elongated shape, and at least one side of the horizontal moving piece is sequentially connected with the vertical moving assembly, the floating mechanism and the driving structure; And / or, In the axial direction of the axis, at least one side of the floating end is connected with the driving structure.