A simple drive type suspension transport vehicle clamp and transfer device

Abstract

The present invention relates to the technical field of suspended transport vehicles, and more specifically to a simple-drive suspended transport vehicle clamp and transfer device, comprising: a fixed frame, a linear drive mounted on the fixed frame, a movable member disposed on the linear drive for longitudinal reciprocating movement; a lifting frame, the lifting frame longitudinally slidably connected to the fixed frame, a first longitudinal limiting member disposed between the lifting frame and the fixed frame; a clamping module, the clamping module comprising a lower pressure frame and a pair of symmetrically arranged clamping claws, the lower pressure frame being pivotally connected to a transmission connecting rod, the movable member being connected to the lower pressure frame, a second longitudinal limiting member being disposed between the lifting frame and the lower pressure frame; the clamping claws being pivotally connected to the lower end of the lifting frame, the transmission connecting rod being pivotally connected to the clamping claws, the clamping claws being located at the lower end of the lower pressure frame; and a tension spring, the upper end of the tension spring being connected to the lifting frame, the lower end of the tension spring being connected to the lower pressure frame. The clamping module has the advantages of simple control, good reliability, and can save manufacturing costs.

Description

Technical Field

[0001] The present invention relates to the technical field of suspended transport vehicles, and in particular to a simple drive type suspended transport vehicle clamp and a transfer device. Background Art

[0002] In modern automated logistics systems and flexible production lines, suspended transport vehicles are widely used for the aerial transfer of materials and workpieces within workshops due to their high space utilization, flexible routing, and high load capacity. The performance of the gripper is crucial in the core process of grasping, moving, and placing workpieces on these vehicles. It requires reliable gripping force, stable lifting and lowering capabilities, and precise opening and closing control.

[0003] Traditional drive-type suspension clamp designs often face the following technical challenges:

[0004] 1. Conflict between motion coordination and structural complexity: Achieving the linkage of the two basic movements of lifting and clamping typically requires multiple independent drive sources (such as lifting cylinders / pneumatic cylinders and clamping cylinders / pneumatic cylinders) or a complex connecting rod and gear mechanism. This not only increases the system's manufacturing cost, weight, and maintenance difficulty, but also increases the complexity of the control system.

[0005] 2. Ensuring action sequence under a single drive: When using a simplified structure with a single drive source, ensuring that the clamping action begins only after the lifting action is in place and maintaining a stable clamping state during the lifting process (especially keeping the open state from accidentally closing) becomes a key challenge. An unreasonable action sequence can lead to clamping failure (e.g., clamping before the workpiece is in place) or interference collision (e.g., the gripper accidentally closes and contacts the equipment during descent).

[0006] Existing clamping designs using a single actuator often struggle to simplify the structure while reliably maintaining the critical operating sequence of maintaining the gripper open before reaching the desired position and accurately triggering the clamping action after reaching the desired position. This can lead to unreliable operation, affecting handling efficiency, and even causing damage to workpieces or equipment. Summary of the Invention

[0007] In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides a simple drive type suspension transport vehicle clamp, which has the advantages of simple control and good reliability, and can save manufacturing costs.

[0008] In order to achieve the above object, the present invention is implemented through the following technical solutions:

[0009] A simple drive type suspension transport vehicle clamp, comprising:

[0010] A fixed frame, on which a linear drive is mounted, and the linear drive is provided with a movable part that moves back and forth longitudinally;

[0011] A lifting frame, the lifting frame is longitudinally slidably connected to the fixed frame, and a first longitudinal limiting member is provided between the lifting frame and the fixed frame;

[0012] The clamping module includes a lower pressure frame and a pair of symmetrically arranged clamping claws. A transmission connecting rod is pivotally connected to the lower pressure frame, and the movable part is connected to the lower pressure frame. A second longitudinal limiting member is provided between the lifting frame and the lower pressure frame; the clamping claws are pivotally connected to the lower end of the lifting frame, and the transmission connecting rod is pivotally connected to the clamping claws; a tension spring, the upper end of the tension spring is connected to the lifting frame, and the lower end of the tension spring is connected to the lower pressure frame;

[0013] When the movable part is restored to the high point, the lifting frame is at the high position and is limited on the lower pressing frame by the second longitudinal limiting member, and the clamping module is in the open state;

[0014] When the movable member descends to the first height, the lifting frame is located in the low position and is restrained on the fixed frame by the first longitudinal limiting member. During this process, due to the action of the tension spring, the lifting frame is always restrained on the lower pressing frame by the second longitudinal limiting member, so as to keep the clamping module in the open state at all times.

[0015] When the movable part continues to descend from the first height to the second height, the tension spring is stretched, and the lower pressing frame moves longitudinally relative to the lifting frame, so that the clamping module is switched between the open state and the closed state.

[0016] The lifting mechanism is a pair of fixedly mounted on two ends of the lifting mechanism, and the lifting mechanism comprises a lifting mechanism, a lifting mechanism comprising a first plate, a second plate, and a third plate, wherein the lifting mechanism comprises a first plate, a second plate, and a third plate.

[0017] Furthermore, in the present application, a simple drive-type suspension transport vehicle clamp is provided, in which a clamping cavity is formed between the lower pressure frame and a pair of clamping claws, a limiting bottom surface is provided on the clamping claws, and a limiting top surface is provided at the bottom of the lower pressure frame; when the clamping module is in the open state, the limiting bottom surfaces of the pair of clamping claws are located on both sides of the clamping cavity, the bottom of the clamping cavity is open, and the limiting top surface is used to limit the top of the clamping cavity; in the process of switching the clamping module from the open state to the closed state, the limiting bottom surfaces of the pair of clamping claws coincide with the bottom of the clamping cavity to close the bottom opening of the clamping cavity, and the limiting top surface descends to compress the longitudinal space of the clamping cavity.

[0018] Furthermore, in the present application, a simple drive type suspension transport vehicle clamp is provided, and the clamp includes a mounting plate, a group of L-shaped limit plates arranged at intervals are connected to the mounting plate, and a first limit side edge and a second limit side edge are provided on the L-shaped limit plate. A group of first limit side edges form a limit bottom surface, and a group of second limit side edges form a limit side surface, and the mounting plate is parallel to the limit side surface.

[0019] Furthermore, in the present application, a simple drive-type suspension transport vehicle clamp, the clamping claw also includes a pair of transmission plates perpendicular to the mounting plate, the transmission plates being mounted on either side of the mounting plate, a set of L-shaped limit plates being disposed between the pair of transmission plates, and a first rotation joint and a second rotation joint being pivotally connected to the lifting frame and the transmission connecting rod, respectively, on the transmission plate. When the clamping module is in the open state, the center line connecting the first rotation joint and the second rotation joint is horizontal; when the clamping module is in the closed state, the center line connecting the first rotation joint and the second rotation joint is vertical, with the second rotation joint being below the first rotation joint. As a preferred embodiment of the present application, when the clamping module is in the closed state, the gravity acting on the lifting frame and the tension of the tension spring are aligned in the direction of the center line connecting the first rotation joint and the second rotation joint, thereby forming a dead point to enhance the stability of the clamping module when it is in the closed state.

[0020] Furthermore, in the present application, a simple drive type suspension transport vehicle clamp is provided with a first limiting protrusion on the mounting plate. When the clamping module is reset to the open state, the lower end of the first limiting protrusion contacts the lower pressure frame to limit the lower pressure frame from continuing to move upward and the clamping claw from continuing to flip in the opening direction. As a preferred solution of the present application, based on the above device, it is possible to achieve self-locking positioning of the clamping claw and the lower pressure frame when the clamping module is reset to the open state. Compared with directly controlling the moving stroke of the lower pressure frame to achieve positioning, it can ensure positioning accuracy and improve positioning efficiency, and compared with setting a limiting component on the outside of the clamping module, it has the advantage of a compact structure.

[0021] Furthermore, in the present application, a simple drive type suspension transport vehicle clamp is provided, wherein the L-shaped limiting plate includes a support plate and a side plate, wherein the extension directions of the support plate and the side plate are perpendicular to each other and are integrally connected at the end to form an L-shape, and the first limiting side edge and the second limiting side edge are respectively the inner edges of the support plate and the side plate;

[0022] When the clamping module is in the open state, the front end of the support plate is facing downward and placed vertically, and the side plate is placed horizontally on the upper end of the support plate;

[0023] When the clamping module is in the closed state, the side panels are placed vertically, the support plates are placed horizontally at the lower ends of the side panels, and the front ends of the support plates on the corresponding two side clamping claws are staggered and overlapped.

[0024] Furthermore, the simple drive type suspension transport vehicle clamp in the present application further includes a locking device, which is used to lock the closed state when the clamping module is switched to the closed state. The locking device is provided on the clamping claw on one side, and the locking device includes:

[0025] A locking frame slidably mounted on the mounting plate;

[0026] A lock plate is mounted on the lock frame, the lock plate being arranged on a side of the support plate away from the first limit side edge, the lock plate extending out of the side of the support plate in the thickness direction of the support plate to form a limit stop edge, a transmission surface is provided on a side of the limit stop edge near the front end of the support plate, and the transmission surface is always located at the rear side of the front end of the support plate;

[0027] A return spring elastically connected to the limit bottom surface, the return spring exerts an elastic force on the lock frame to slide toward the front end of the support plate;

[0028] When the clamping module moves from the open state to the closed state, the front end of the support plate on the opposite side of the clamping claw will abut against the transmission surface and push the lock frame to slide, making room for the support plate to move;

[0029] After the clamping module is in the closed state, the front end of the support plate on the opposite side of the clamping claw is disengaged from the transmission surface, and the reset spring pushes the lock frame to reset and move to the limit stop edge below the opposite side of the support plate to limit the rotation of the clamping claw in the opening direction. As a preferred solution of the present application, the clamping module is locked in the closed state by a locking device, and the movable part can lift the clamped material for subsequent transfer. Based on the above device, since a pair of clamping claws rotate synchronously during the process of switching the clamping module between the open and closed states, and when in the closed state, the front ends of the support plates on both sides are staggered and overlapped, then inevitably, in the process of moving to the closed state, the front end of the support plate on one side will pass through the opposite side of the support plate, that is, from the side of the opposite side of the support plate away from the first limit side edge. The front end position of the support plate will move backward on the other side of the support plate, thereby being able to push the lock plate set on the side of the support plate away from the first limit side edge to move to make room for the movement of the support plate. After the clamping module switches to the closed state, the two side plates overlap, so the front ends of the two side plates are located within the side of the opposite side plate. That is, the front ends of the plates do not protrude from the side of the opposite side plate away from the first limiting edge. As a result, the front end of the plate on the opposite side claw is disengaged from the transmission surface. The reset spring pushes the lock frame to return to the limiting edge and is located below the opposite side claw. And because the claws on both sides rotate synchronously, the claw on one side is limited to being unable to rotate, which also prevents the claw on the opposite side from rotating, thereby achieving the locking device locking the clamping module to the closed state.

[0030] Furthermore, a simple drive type suspension transport vehicle clamp in the present application also includes an unlocking protrusion, which is arranged on the lock frame or lock plate. The unlocking protrusion is used to cooperate with the external unlocking component to drive the lock frame to move to the limit edge to release the limit of the opposite side support plate.

[0031] A transfer device comprises: a suspension transport vehicle, the above-mentioned clamping device is installed on the bottom of the suspension transport vehicle, and a fixing frame is connected to the bottom of the suspension transport vehicle;

[0032] The transfer platform is provided with a plurality of longitudinally extending partition cavities, which extend beyond the upper end surface and a pair of side surfaces of the transfer platform. The plurality of partition cavities are arranged along the arrangement direction of the L-shaped limiting plates. The upper end surface of the transfer platform is provided with limiting grooves for placing materials. When the clamping module switches from an open state to a closed state, the support plate passes through the partition cavities to limit the materials placed on the limiting grooves in the clamping cavities.

[0033] The unlocking seat is arranged at the unloading station. When the suspension transport vehicle moves to the unloading station, the unlocking seat is used to push the unlocking protrusion to move to the limit stop edge to release the limit of the opposite side support plate.

[0034] It can be seen from the above technical solution that the present invention has the following beneficial effects:

[0035] The present invention provides a simple, drive-based, suspended transport vehicle clamp. Its principle is as follows: during use, the clamp is moved to a preset height above the material to be transferred via a suspended transport vehicle. The movable member returns to its highest point, and a linear actuator simply drives the movable member down to a second height, sequentially lowering the clamp module and switching from an open state to a closed state to clamp the material. Thus, utilizing a tension spring, two-stage limiters, and a linkage mechanism, a single actuator ensures that the clamp operates in a strict and reliable sequence: descending, remaining open to the bottom, and continuing to descend to trigger clamping. This provides the advantages of simple control, high reliability, and reduced manufacturing costs.

[0036] The present invention provides a simple drive type suspension transport vehicle clamp, which forms synchronous bottom support and top downward pressure through the synchronous linkage limitation of the limiting bottom surface and the limiting top surface, thereby realizing synchronous upper and lower limitation of the longitudinal direction of the material to be taken.

[0037] The present invention provides a transfer device capable of realizing efficient transfer of materials, and is particularly suitable for the transfer of bagged flexible materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 This is a structural diagram of a simple drive-type suspension transport vehicle clamp in an embodiment of the present application (the movable part is reset to the high point);

[0039] Figure 2 for Figure 1 Exploded diagram of components;

[0040] Figure 3 This is an exploded schematic diagram of the components of the lifting frame and the clamping module in an embodiment of the present application;

[0041] Figure 4 Schematic diagram of the structure of the lower pressure frame in the embodiment of the present application;

[0042] Figure 5 This is a schematic structural diagram of a claw for installing a locking device in an embodiment of the present application;

[0043] Figure 6 for Figure 5 Exploded diagram of the claw components in the game;

[0044] Figure 7 This is a structural diagram of a simple drive-type suspension transport vehicle clamp in an embodiment of the present application (the movable part is lowered to a first height);

[0045] Figure 8 This is a structural diagram of a simple drive-type suspension transport vehicle clamp in an embodiment of the present application (the movable part is lowered to the second height);

[0046] Figure 9Schematic diagram of the clamping module in an embodiment of the present application moving from an open state to a closed state;

[0047] Figure 10 This is a working principle diagram of a transfer device in Example 2 of the present application (corresponding to steps S1 to S4);

[0048] Figure 11 This is a working principle diagram of a transfer device in Example 2 of the present application (corresponding to step S6);

[0049] Figure 12 This is a schematic structural diagram of the transfer platform in Example 2 of the present application;

[0050] Figure 13 This is a schematic structural diagram of the unlocking seat in Example 2 of the present application.

[0051] In the picture:

[0052] 1-fixed frame; 11-linear drive; 111-movable member; 12-second positioning plate;

[0053] 2-lifting frame; 21-tension spring; 22-first vertical plate; 23-first positioning plate; 24-horizontal plate;

[0054] 3-lower pressure frame; 31-transmission connecting rod; 32-third positioning plate; 33-limiting bottom plate; 330-through slot; 34-second vertical plate; 35-connecting plate; 36-top plate; 37-guide rod; 371-compression spring; 38-pressure seat; 39-pressure block;

[0055] 4 - Claw; 41 - L-shaped limiting plate; 411 - Limiting bottom surface; 4110 - First limiting side edge; 412 - Limiting side surface; 4120 - Second limiting side edge; 413 - Support plate; 4130 - Slide groove; 414 - Side plate; 42 - Mounting plate; 421 - First limiting protrusion; 422 - Guide pillar; 423 - Limiting plate; 43 - Transmission plate; 431 - First rotating joint; 432 - Second rotating joint; 441 - Locking frame; 4411 - Sliding seat; 442 - Locking plate; 4421 - Limiting edge; 4422 - Transmission surface; 443 - Return spring; 444 - Sliding connecting plate; 4441 - Positioning protrusion; 445 - Unlocking protrusion;

[0056] 5- Suspension transport vehicle;

[0057] 6-transfer platform; 60-interval cavity; 61-limiting groove;

[0058] 7-Unlock seat. DETAILED DESCRIPTION

[0059] Example 1

[0060] Combine Figure 1A simple drive type suspension transport vehicle clamp is shown, comprising:

[0061] A fixed frame 1, on which a linear drive 11 is mounted, and on which a movable member 111 for longitudinal reciprocating motion is disposed;

[0062] A lifting frame 2 is longitudinally slidably connected to the fixed frame 1, and a first longitudinal limiting member is provided between the lifting frame 2 and the fixed frame 1;

[0063] The clamping module includes a lower pressure frame 3 and a pair of symmetrically arranged claws 4. A transmission connecting rod 31 is pivotally connected to the lower pressure frame 3, and a movable part 111 is connected to the lower pressure frame 3. A second longitudinal limiting member is provided between the lifting frame 2 and the lower pressure frame 3; the claws 4 are pivotally connected to the lower end of the lifting frame 2, and the transmission connecting rod 31 is pivotally connected to the claws 4; a tension spring 21, the upper end of the tension spring 21 is connected to the lifting frame 2, and the lower end of the tension spring 21 is connected to the lower pressure frame 3;

[0064] like Figure 1 As shown, when the movable member 111 is restored to the high point, the lifting frame 2 is at the high position and is limited on the lower pressing frame 3 by the second longitudinal limiting member, and the clamping module is in the open state;

[0065] like Figure 7 As shown, when the movable member 111 descends to the first height, the lifting frame 2 is in the low position and is restrained on the fixed frame 1 by the first longitudinal limiting member. During this process, due to the action of the tension spring 21, the lifting frame 2 is always restrained on the lower pressing frame 3 by the second longitudinal limiting member, so as to keep the clamping module in the open state at all times.

[0066] like Figure 8 and Figure 9 As shown, when the movable member 111 continues to descend from the first height to the second height, the tension spring 21 is stretched, and the lower pressing frame 3 moves longitudinally relative to the lifting frame 2 to realize the switching of the clamping module between the open state and the closed state.

[0067] Based on the above structure, a simple drive-type suspended transport vehicle clamp works as follows: during use, the clamp is moved to a preset height above the material to be transferred by the suspended transport vehicle. The movable member 111 returns to the highest point, and the linear actuator 11 simply drives the movable member 111 down to a second height, sequentially lowering the clamp module and switching from the open state to the closed state to clamp the material. This provides the advantages of simple control and reduces manufacturing costs.

[0068] In this embodiment, the linear actuator 11 is a driving cylinder, and the movable member 111 is a cylinder push rod.

[0069] Combine Figure 2 and Figure 3As shown, in this embodiment, the lifting frame 2 includes a horizontal plate 24 and a pair of first vertical plates 22 fixed on both sides of the horizontal plate 24. The horizontal plate 24 is located at the upper end of the first vertical plate 22. The claw 4 is pivotally connected to the end of the first vertical plate 22 away from the horizontal plate 24. The first vertical plate 22 is longitudinally slidably connected to the fixed frame 1 through a guide rail and a slider. A first positioning plate 23 extending laterally is provided on the first vertical plate 22, and the first positioning plate 23 is located below the horizontal plate 24.

[0070] The fixing frame 1 is provided with a second positioning plate 12, which is arranged between the transverse plate 24 and the first positioning plate 23;

[0071] A third positioning plate 32 is provided on the lower pressing frame 3, and the third positioning plate 32 is located below the second positioning plate 12;

[0072] The two ends of the tension spring 21 are connected to the horizontal plate 24 and the lower pressure frame 3 respectively;

[0073] Combine Figure 1 As shown, when the movable member 111 is restored to the high point, the first positioning plate 23 abuts against the third positioning plate 32, and the adjacent surfaces of the first positioning plate 23 and the third positioning plate 32 form a second longitudinal limiting member;

[0074] Combine Figure 7 When the movable member 111 is lowered to the first height, the second positioning plate 12 abuts against the transverse plate 24 , and adjacent surfaces of the second positioning plate 12 and the transverse plate 24 form a first longitudinal limiting member.

[0075] Combine Figure 5 and 9 As shown, in this embodiment, a holding cavity is formed between the lower pressing frame 3 and a pair of holding claws 4, a limiting bottom surface 411 is provided on the holding claws 4, and a limiting top surface is provided at the bottom of the lower pressing frame 3;

[0076] When the clamping module is in the open state, the limiting bottom surfaces 411 of the pair of clamping claws 4 are located on both sides of the clamping cavity, the bottom of the clamping cavity is open, and the limiting top surface is used to limit the top of the clamping cavity;

[0077] When the clamping module switches from the open state to the closed state, the limiting bottom surfaces 411 of the pair of claws 4 coincide with the bottom of the clamping cavity to close the bottom opening of the clamping cavity, and the limiting top surface descends to compress the longitudinal space of the clamping cavity.

[0078] The upper and lower longitudinal limits of the material to be taken can be achieved by the synchronous linkage limit of the limit bottom surface 411 and the limit top surface.

[0079] Specific, combined Figure 3 and Figure 4As shown, the lower pressure frame 3 includes a horizontal limiting base plate 33 and a second vertical plate 34 fixed on both sides of the limiting base plate 33. The limiting bottom surface is arranged at the bottom of the limiting base plate 33. The second vertical plate 34 is longitudinally slidably connected to the first vertical plate 22 through guide rails and sliders. The third positioning plate 32 is installed on the second vertical plate 34, and the transmission connecting rod 31 is rotatably connected to the second vertical plate 34.

[0080] A pair of connecting plates 35 are connected between the pair of second vertical plates 34. A top plate 36 is fixed between the pair of connecting plates 35. The top plate 36 is positioned above the limiting base plate 33. A pair of vertical guide rods 37 are positioned between the limiting base plate 33 and the top plate 36. A pressure seat 38 is slidably mounted on the guide rods 37. A pressure block 39 is located at the bottom of the pressure seat 38. The limiting base plate 33 has a slot 330 corresponding to the pressure block 39. A compression spring 371 is mounted on the guide rods 37. The ends of the compression spring 371 abut against the top plate 36 and the pressure seat 38, respectively. In its natural state, the bottom of the pressure block 39 passes through the slot 330 and is located below the limiting base plate 33. The pressure seat 38 is elastically mounted on the lower pressure frame 3. When the clamping module is in the closed position, the pressure block 39 on the pressure seat 38 passes through the limiting base plate 33 to longitudinally compact the material within the clamping cavity. Specifically, the movable member 111 is connected to the top plate 36.

[0081] Combine Figure 5 and Figure 6 As shown, in this embodiment, the clamping claws 4 include a mounting plate 42, to which is connected a set of spaced L-shaped limiting plates 41. The L-shaped limiting plates 41 are provided with first limiting side edges 4110 and second limiting side edges 4120. The first limiting side edges 4110 form a limiting bottom surface 411, and the second limiting side edges 4120 form a limiting side surface 412. The mounting plate 42 is parallel to the limiting side surfaces 412. When the clamping module is in the open state, the limiting side surfaces 412 on the pair of clamping claws 4 are located at the top of the clamping cavity and on either side of the limiting top surface. When the clamping module is in the closed state, the limiting side surfaces 412 on the pair of clamping claws 4 are located on either side of the clamping cavity in the transverse direction. In this embodiment, the claw 4 also includes a pair of transmission plates 43 perpendicular to the mounting plate 42. The transmission plates 43 are installed on both sides of the mounting plate 42. A set of L-shaped limit plates 41 are arranged between the pair of transmission plates 43. The transmission plates 43 are provided with a first rotation joint 431 and a second rotation joint 432 pivotally connected to the lifting frame 2 and the transmission link 31 respectively. When the clamping module is in the open state, the center line of the first rotation joint 431 and the second rotation joint 432 is horizontal; when the clamping module is in the closed state, the center line of the first rotation joint 431 and the second rotation joint 432 is vertical and the second rotation joint 432 is below the first rotation joint 431. When the clamping module is in the closed state, the second rotation joint 432 is located below the first rotation joint 431. Figure 8As shown, the gravity acting on the lifting frame 2 and the tension of the tension spring 21 are aligned with the center line of the first rotating joint 431 and the second rotating joint 432 , thereby forming a dead point to improve the stability of the clamping module when it is in the closed state.

[0082] Combine Figure 3 and Figure 5 As shown, in this embodiment, a first limiting protrusion 421 is provided on the mounting plate 42. When the clamping module is reset to the open state, the lower end of the first limiting protrusion 421 contacts the lower pressure frame 3 to limit the lower pressure frame 3 from further upward movement and the claw 4 from further flipping in the opening direction. Based on the above device, self-locking positioning of the claw 4 and the lower pressure frame 3 can be achieved when the clamping module is reset to the open state. Compared with directly controlling the movement stroke of the lower pressure frame 3 to achieve positioning, it can not only ensure positioning accuracy but also improve positioning efficiency. In addition, compared with setting a limiting member outside the clamping module, it has the advantage of a compact structure. Specifically, a pair of first limiting protrusions 421 are provided on the mounting plate 42. The first limiting protrusions 421 are spaced apart in the arrangement direction of the L-shaped limiting plate 41. The first limiting protrusions 421 are rubber pads connected to the mounting plate 42 by screws.

[0083] Combine Figure 5 As shown, in this embodiment, the L-shaped limiting plate 41 includes a supporting plate 413 and a side plate 414. The supporting plate 413 and the side plate 414 extend perpendicularly to each other and are integrally connected at the end to form an L shape. The first limiting side edge 4110 and the second limiting side edge 4120 are the inner edges of the supporting plate 413 and the side plate 414, respectively.

[0084] When the clamping module is in the open state, the front end of the support plate 413 is vertically placed downward, and the side plate 414 is horizontally placed on the upper end of the support plate 413;

[0085] When the clamping module is in the closed state, the side panels 414 are placed vertically, and the supporting plates 413 are placed horizontally at the lower ends of the side panels 414 , and the front ends of the supporting plates 413 on the corresponding two side clamping claws 4 are staggered and overlapped with each other.

[0086] Combine Figure 5 and Figure 6 As shown, in this embodiment, a locking device is further included. When the clamping module is switched to the closed state, the locking device is used to lock the closed state. The locking device is provided on the claw 4 on one side. The locking device includes:

[0087] A lock frame 441 slidably mounted on the mounting plate 42;

[0088] A lock plate 442 is mounted on the lock frame 441 and is disposed on the side of the support plate 413 away from the first limiting side edge 4110. The lock plate 442 extends from the side of the support plate 413 in the thickness direction thereof to form a limiting stop edge 4421. A transmission surface 4422 is provided on the side of the limiting stop edge 4421 near the front end of the support plate 413. The transmission surface 4422 is always located at the rear side of the front end of the support plate 413.

[0089] A return spring 443 elastically connected to the limiting bottom surface 411 , the return spring 443 applies an elastic force to the lock frame 441 to slide toward the front end of the support plate 413 ;

[0090] When the clamping module moves from the open state to the closed state, the front end of the support plate 413 on the opposite side of the clamping claw 4 abuts against the transmission surface 4422 and pushes the lock frame 441 to slide, thereby making room for the support plate 413 to move.

[0091] After the clamping module is in the closed state, the front end of the support plate 413 on the opposite side of the clamping claw 4 is separated from the transmission surface 4422, and the reset spring 443 pushes the lock frame 441 to reset and move to the limit stop edge 4421 below the opposite side of the support plate 413 to limit the clamping claw 4 from rotating in the opening direction.

[0092] The clamping module is locked in the closed state by the locking device, and the movable part 111 can lift the clamped material to facilitate subsequent transfer. Based on the above device, since a pair of claws 4 rotate synchronously during the process of switching the clamping module between the open and closed states, and when in the closed state, the front ends of the support plates 413 on both sides are staggered and overlapped, then inevitably, as Figure 9 As shown, during the movement to the closed state, the front end of the support plate 413 on one side will pass through the support plate 413 on the opposite side, that is, it will be exposed from the side of the support plate 413 on the opposite side away from the first limiting side edge 4110, and the front end position of the support plate 413 will move backward on the support plate 413 on the other side, thereby pushing the locking plate 442 set on the side of the support plate 413 away from the first limiting side edge 4110 to move to make room for the support plate 413 to move. After the clamping module switches to the closed state, the supporting plates 413 on both sides overlap, so the front ends of the supporting plates 413 on both sides are located within the side of the opposite supporting plate 413, that is, the front ends of the supporting plates 413 do not protrude from the side of the opposite supporting plate 413 away from the first limiting side edge 4110. As a result, the front ends of the supporting plates 413 on the opposite holding claw 4 are disengaged from the transmission surface 4422, and the locking frame 441 is reset to the limiting edge 4421 below the opposite holding claw 413 due to the push of the return spring 443. In addition, because the holding claws 4 on both sides rotate synchronously, the holding claw 4 on one side is limited to being unable to rotate, which also prevents the holding claw 4 on the opposite side from rotating, thereby achieving the locking device locking the clamping module to the closed state.

[0093] There are three locking plates 442, one set of which is spaced apart in the same direction as the L-shaped stop plates 41. In this embodiment, the transmission surface 4422 is located at the front end of the locking plate 442, near the support plate 413, and has a rounded corner. When the clamping module moves from the open to the closed position, the support plate 413 on the opposite side of the clamping claw 4 abuts the transmission surface 4422, pushing the lock frame 441 to slide. During this process, the front end of the support plate 413 and the transmission surface 4422 will slide relative to each other. By defining the shape and position of the transmission surface 4422 in this embodiment, the stability of the sliding movement is improved.

[0094] In this embodiment, a pair of sliding seats 4411 are provided on the lock frame 441. A pair of guide posts 422 are fixed to the side of the mounting plate 42 away from the L-shaped limit plate 41. A limit plate 423 is provided on the end of the guide post 422 away from the mounting plate 42. The sliding seat 4411 is slidably mounted on the guide post 422. The return spring 443 is mounted on the guide post 422 with its two ends respectively abutting against the limit plate 423 and the sliding seat 4411.

[0095] The locking plate 442 is provided with a sliding connecting plate 444 , the sliding connecting plate 444 is provided with a positioning protrusion 4441 , and the supporting plate 413 connected to the locking plate 442 is provided with a sliding groove 4130 , and the positioning protrusion 4441 is slidably set in the sliding groove 4130 .

[0096] The locking frame 441 is slidably connected to the mounting plate 42 through the sliding seat 4411 and the guide column 422, and the sliding groove 4130 and the positioning protrusion 4441 are slidably connected to support the locking plate 442 to ensure the stability of the sliding movement of the locking frame 441 and the locking plate 442 relative to the claw 4 and improve the load-bearing capacity after locking the clamping module.

[0097] This embodiment further includes an unlocking protrusion 445, which is disposed on the lock frame 441 or the lock plate 442. The unlocking protrusion 445 is configured to cooperate with an external unlocking member to move the lock frame 441 to the position-limiting stop 4421, thereby releasing the position of the opposite support plate 413. In this embodiment, the unlocking protrusion 445 is disposed on the side of one set of lock plates 442 away from the support plate 413.

[0098] Example 2

[0099] This embodiment provides a transfer device, comprising:

[0100] like Figure 10 The suspension transport vehicle 5 shown in the figure has a clamping device according to the above embodiment 1 installed at the bottom thereof, and the fixing frame 1 is connected to the bottom of the suspension transport vehicle 5;

[0101] like Figure 12The transfer platform 6 shown in FIG. 1 is provided with a plurality of longitudinally extending partition cavities 60, which extend beyond the upper end surface and a pair of side surfaces of the transfer platform 6. The plurality of partition cavities 60 are arranged along the arrangement direction of the L-shaped limiting plates 41. The upper end surface of the transfer platform 6 is provided with limiting grooves 61 for placing materials. When the clamping module switches from an open state to a closed state, the support plate 413 passes through the partition cavities 60 to confine the materials placed on the limiting grooves 61 in the clamping cavities.

[0102] like Figure 13 The unlocking seat 7 shown is arranged at the unloading station. When the suspension transport vehicle 5 moves to the unloading station, the unlocking seat 7 is used to push the unlocking protrusion 445 to move to the limiting edge 4421 to release the limitation of the opposite side support plate 413.

[0103] Based on the above device, efficient transfer of materials can be achieved, and it is particularly suitable for the transfer of bagged flexible materials.

[0104] How to use the transfer device Figure 10 and Figure 11 As shown, the following steps are included:

[0105] Step S1: Reset, the movable member 111 is restored to the high point, and the suspension transport vehicle 5 moves to the holding cavity facing the limiting groove 61;

[0106] Step S2: descending, the movable member 111 descends to a first height, the lifting frame 2 is located at a low position, and the second positioning plate 12 abuts against the horizontal plate 24;

[0107] Step S3: Clamping. The movable member 111 descends to a second height, and the support plate 413 passes through the partition cavity 60 from the side of the transfer platform 6 until the clamping module is in a closed state and locked by the locking device. At this time, the support plate 413 supports the bottom of the material on the limiting groove 61, and the side plates 414 on both sides limit the ends of the material. The pressing block 39 elastically presses on the top of the material.

[0108] Step S4: rising, the movable member 111 rises to the first positioning plate 23 and abuts against the second positioning plate 12 to move the clamping module to the top of the transfer platform 6;

[0109] Step S5: Moving, the suspension transport vehicle 5 moves toward the unloading station. During this process, the movable member 111 descends until the second positioning plate 12 abuts against the transverse plate 24;

[0110] Step S6: Unloading, the suspension transport vehicle 5 moves to the unloading station, and when the suspension transport vehicle 5 is in place, the suspension transport vehicle 5 Figure 11As shown, the rightward drive causes the unlocking protrusion 445 to come into contact with the unlocking seat 7. The unlocking protrusion 445 moves to the limit stop 4421, releasing the limit on the opposite side support plate 413. The movable member 111 rises and resets, opening the clamping cavity and placing the material at the unloading station. It should be noted that during the process of the movable member 111 rising to the first height, the tension of the tension spring 21 causes the cross plate 24 to abut against the second positioning plate 12, preventing the lifting frame 2 from rising synchronously with the clamping module, causing the material to fall after being lifted, resulting in excessive impact during the unloading process.

[0111] The technical principles of the present invention have been described above in conjunction with specific embodiments. These descriptions are intended solely to illustrate the principles of the present invention and are not to be construed in any way as limiting the scope of protection of the present invention. Based on the explanations herein, those skilled in the art will be able to conceive of other specific embodiments of the present invention without inventive effort, and such embodiments will fall within the scope of protection of the present invention.

Claims

1. A simple drive type suspension transport vehicle clamp, characterized by: include: A fixed frame (1), a linear drive (11) is mounted on the fixed frame (1), and a movable member (111) is provided on the linear drive (11) for longitudinal reciprocating movement; A lifting frame (2), the lifting frame (2) is longitudinally slidably connected to the fixed frame (1), and a first longitudinal limiting member is provided between the lifting frame (2) and the fixed frame (1); A clamping module, the clamping module comprises a lower pressure frame (3) and a pair of symmetrically arranged clamping claws (4), a transmission connecting rod (31) is pivotally connected to the lower pressure frame (3), a movable member (111) is connected to the lower pressure frame (3), and a second longitudinal limiting member is provided between the lifting frame (2) and the lower pressure frame (3); the clamping claws (4) are pivotally connected to the lower end of the lifting frame (2), and the transmission connecting rod (31) is pivotally connected to the clamping claws (4); a tension spring (21), the upper end of the tension spring (21) is connected to the lifting frame (2), and the lower end of the tension spring (21) is connected to the lower pressure frame (3); When the movable part (111) is restored to the high point, the lifting frame (2) is at a high position and is limited on the lower pressing frame (3) by the second longitudinal limiting component, and the clamping module is in an open state; When the movable member (111) descends to a first height, the lifting frame (2) is located at a low position and is limited on the fixed frame (1) by a first longitudinal limiting component; When the movable member (111) continues to descend from the first height to the second height, the lower pressing frame (3) moves longitudinally relative to the lifting frame (2) to switch the clamping module between the open state and the closed state; The lifting frame (2) includes a transverse plate (24) and a first vertical plate (22) fixed in pairs on both sides of the transverse plate (24), the transverse plate (24) is located at the upper end of the first vertical plate (22), the claw (4) is pivotally connected to the end of the first vertical plate (22) away from the transverse plate (24), the first vertical plate (22) is longitudinally slidably connected to the fixed frame (1), and a first positioning plate (23) extending transversely is provided on the first vertical plate (22), and the first positioning plate (23) is located below the transverse plate (24); A second positioning plate (12) is provided on the fixing frame (1), and the second positioning plate (12) is arranged between the transverse plate (24) and the first positioning plate (23); A third positioning plate (32) is provided on the lower pressing frame (3), and the third positioning plate (32) is located below the second positioning plate (12); The two ends of the tension spring (21) are respectively connected to the horizontal plate (24) and the lower pressure frame (3); When the movable member (111) is restored to the high point, the first positioning plate (23) abuts against the third positioning plate (32), and the adjacent surfaces of the first positioning plate (23) and the third positioning plate (32) form a second longitudinal limiting member; When the movable member (111) descends to the first height, the second positioning plate (12) abuts against the transverse plate (24), and adjacent surfaces of the second positioning plate (12) and the transverse plate (24) form a first longitudinal limiting member; A holding cavity is formed between the lower pressing frame (3) and the pair of holding claws (4), the holding claws (4) are provided with a limiting bottom surface (411), and the bottom of the lower pressing frame (3) is provided with a limiting top surface; When the clamping module is in an open state, the limiting bottom surfaces (411) of the pair of clamping claws (4) are located on both sides of the clamping cavity, the bottom of the clamping cavity is open, and the limiting top surface is used to limit the top of the clamping cavity; During the process of switching the clamping module from an open state to a closed state, the limiting bottom surfaces (411) of the pair of clamping claws (4) are aligned with the bottom of the clamping cavity to close the bottom opening of the clamping cavity, and the limiting top surfaces descend to compress the longitudinal space of the clamping cavity.

2. The simple drive type suspension transport vehicle clamp according to claim 1, characterized in that: The claw (4) comprises a mounting plate (42), a group of L-shaped limiting plates (41) arranged at intervals are connected to the mounting plate (42), a first limiting side edge (4110) and a second limiting side edge (4120) are provided on the L-shaped limiting plate (41), a group of first limiting side edges (4110) form a limiting bottom surface (411), a group of second limiting side edges (4120) form a limiting side surface (412), and the mounting plate (42) is parallel to the limiting side surface (412).

3. The simple drive type suspension transport vehicle clamp according to claim 2, characterized in that: The clamping claw (4) further comprises a pair of transmission plates (43) perpendicular to the mounting plate (42), the transmission plates (43) being mounted on both sides of the mounting plate (42), a group of L-shaped limiting plates (41) being arranged between the pair of transmission plates (43), the transmission plates (43) being provided with a first rotation joint (431) and a second rotation joint (432) pivotally connected to the lifting frame (2) and the transmission connecting rod (31) respectively, when the clamping module is in an open state, a center line connecting the first rotation joint (431) and the second rotation joint (432) is horizontal; when the clamping module is in a closed state, a center line connecting the first rotation joint (431) and the second rotation joint (432) is vertical and the second rotation joint (432) is below the first rotation joint (431).

4. The simple drive type suspension transport vehicle clamp according to claim 2, characterized in that: A first limiting protrusion (421) is provided on the mounting plate (42), and when the clamping module is reset to the open state, the lower end of the first limiting protrusion (421) contacts the lower pressing frame (3) to limit the lower pressing frame (3) from continuing to move upward and the clamping claw (4) from continuing to flip in the opening direction.

5. The simple drive type suspension transport vehicle clamp according to claim 3, characterized in that: The L-shaped limiting plate (41) comprises a supporting plate (413) and a side plate (414); the extending directions of the supporting plate (413) and the side plate (414) are perpendicular to each other and are integrally connected at the end to form an L-shape; the first limiting side edge (4110) and the second limiting side edge (4120) are respectively the inner side edges of the supporting plate (413) and the side plate (414); When the clamping module is in the open state, the front end of the support plate (413) is vertically positioned as a whole downward, and the side plate (414) is horizontally positioned on the upper end of the support plate (413); When the clamping module is in a closed state, the side panels (414) are placed vertically, the support plates (413) are placed horizontally at the lower ends of the side panels (414), and the front ends of the support plates (413) on the corresponding two side clamping claws (4) are interlaced and overlapped.

6. The simple drive type suspension transport vehicle clamp according to claim 5, characterized in that: It also includes a locking device, which is used to lock the closed state when the clamping module is switched to the closed state. The locking device is arranged on the clamping claw (4) on one side, and the locking device includes: A lock frame (441) slidably mounted on the mounting plate (42); A locking plate (442) is mounted on the locking frame (441), the locking plate (442) being arranged on a side of the supporting plate (413) away from the first limiting side edge (4110), the locking plate (442) extending out of the side of the supporting plate (413) along the thickness direction of the supporting plate (413) to form a limiting stop edge (4421), a transmission surface (4422) being provided on a side of the limiting stop edge (4421) near the front end of the supporting plate (413), and the transmission surface (4422) being always located at the rear side of the front end of the supporting plate (413); a return spring (443) elastically connected to the limiting bottom surface (411), the return spring (443) applying an elastic force to the lock frame (441) to slide toward the front end of the support plate (413); When the clamping module moves from the open state to the closed state, the front end of the support plate (413) on the opposite side of the clamping claw (4) abuts against the transmission surface (4422) and pushes the locking frame (441) to slide, thereby freeing up space for the support plate (413) to move; When the clamping module is in the closed state, the front end of the support plate (413) on the opposite side clamping claw (4) is separated from the transmission surface (4422), and the reset spring (443) pushes the lock frame (441) to reset and move to the limit stop edge (4421) below the opposite side support plate (413) to limit the clamping claw (4) from rotating in the opening direction.

7. The simple drive type suspension transport vehicle clamp according to claim 6, characterized in that: The locking mechanism further comprises an unlocking protrusion (445), the unlocking protrusion (445) being arranged on the locking frame (441) or the locking plate (442), and the unlocking protrusion (445) being used to cooperate with an external unlocking member to move to drive the locking frame (441) to move to the limiting stop edge (4421) to release the limiting of the opposite side support plate (413).

8. A transfer device, characterized in that: include: A suspended transport vehicle (5), wherein a clamp according to claim 7 is installed at the bottom of the suspended transport vehicle (5), and the fixing frame (1) is connected to the bottom of the suspended transport vehicle (5); A transfer platform (6), wherein the transfer platform (6) is provided with a plurality of longitudinally extending partition cavities (60), the partition cavities (60) extending from the upper end surface and a pair of side surfaces of the transfer platform (6), the plurality of partition cavities (60) being arranged along the arrangement direction of the L-shaped limiting plate (41), and a limiting groove (61) for placing materials is provided on the upper end surface of the transfer platform (6); when the clamping module is switched from an open state to a closed state, the support plate (413) passes through the partition cavity (60) to limit the materials placed on the limiting groove (61) in the clamping cavity; The unlocking seat (7) is provided at the unloading station. When the suspension transport vehicle (5) moves to the unloading station, the unlocking seat (7) is used to push the unlocking protrusion (445) to move to the limit stop edge (4421) to release the limit of the opposite side support plate (413).

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