Automatic material supporting and picking sling device

Abstract

The automatic material supporting and sling picking and placing device disclosed by the present invention has a lifting table surface located in the holes inside the workbench surface, two jacking pistons and their cylinders respectively located below both ends of the lifting table surface, and each cylinder is connected to a compressed air source. Upper tracks and lower tracks below them are respectively arranged on the left and right sides of the lower surface of the lifting table surface, as well as diagonal support rods that are cross-actively connected between them. Sliders are respectively arranged at the two rod ends of the diagonal support rods and are movably connected to the upper tracks and the lower tracks; a pressure regulating spring may be connected between the two diagonal support rods. The present invention facilitates the picking and placing of the sheet sling, and the combined frame below the lifting table surface gives the lifting table surface sufficient strength and rigidity.

Description

Technical Field

[0001] The present invention relates to a processing fee platform for plates and its hoisting technology. Background Art

[0002] The weight of graphite plates is generally dozens or even hundreds of kilograms (especially when multiple layers are stacked, the weight is even greater). After machining on a machine tool, a sling is passed through each end of the graphite plate, and then the hook of a crane is hooked onto the two slings to lift the graphite plate and transfer it to the next working station. Or the graphite plate from the previous process is hoisted onto this machine tool, and the sling is removed before mechanical processing.

[0003] Due to the large self-weight of the plate, when the plate is placed on the processing platform, its lower surface is closely attached to the tabletop, and it is not easy to pass through or extract the sling from the lower surface of the plate. If the operation is improper, it may damage the graphite plate or injure the operator. Summary of the Invention

[0004] Object of the Invention

[0005] To overcome the drawback that it is not very convenient to hang or place and then remove the sling of the plate to be processed on a traditional graphite processing machine tool, and to provide a processing platform that can be automatically lifted to facilitate the taking and placing of the sling.

[0006] Technical Solution

[0007] The present invention provides an automatic material supporting and sling taking and placing device, which is mainly applied to a surface milling machine. The device of the present invention has a supporting table located in the inner hole of the workbench surface (which can be a closed hole, or a partially open hole, or a hole with a groove locally, or a hole with a local staggered structure, ensuring that the workbench surface does not affect the lifting of the supporting tabletop, mainly referring to the inner side in the length direction of the plate, and the inner side in the width direction of the plate is not limited), two lifting pistons respectively located below both ends of the supporting tabletop, and two cylinders used in combination with them. Each cylinder is respectively connected to a compressed air source.

[0008] During the processing of plates such as graphite plates, the plate blank is hoisted onto the supporting tabletop (the length of the supporting tabletop is less than the length of the plate, and the width is generally greater than the width of the plate) by a traveling crane. Then, the slings at both ends below the plate are manually removed, and then the blank is lowered onto the processing workbench surface (outside the supporting tabletop, the length and width dimensions of the workbench surface are both larger than those of the plate, so that the entire lower bottom surface of the plate falls on the plane jointly formed by the workbench surface and the stationary supporting tabletop) for processes such as planing, milling, and drilling. After the processing is completed, the supporting tabletop and the finished plate are lifted together by the cylinders and the lifting pistons, while the outer workbench surface remains stationary. Below both ends of the lifted plate (exposed from the supporting tabletop), the sling is passed through and sleeved manually or by a manipulator, and then the crane directly hangs the sling and transports it away.

[0009] This also eliminates the trouble of passing the sling through a very small gap (or even no gap) between the workbench surface and the bottom of the plate, greatly improving the processing and lifting efficiency.

[0010] Support feet are provided below the workbench surface.

[0011] Preferably, upper tracks are respectively arranged on the left and right sides of the lower surface of the lifting tabletop, and lower tracks corresponding to the upper tracks are provided below; between the upper track and the lower track on each side, there are two obliquely supporting rods that are cross-connected and movable in the middle position (a connecting rod can be connected between the two cross-connection points to increase the stability of the frame structure). The two rod ends of the obliquely supporting rods are respectively movably connected with sliders, and the sliders can slide in the upper track and the lower track without slipping off.

[0012] With the lifting of the lifting tabletop caused by the lifting and lowering of the jacking piston, the two ends of the obliquely supporting rod respectively slide back and forth in the upper track and the lower track to assist in supporting the lifting tabletop; at the same time, it is ensured that when the cylinder piston fails, the obliquely supporting rod can assist in supporting the lifting tabletop and the plate, and will not fall to the ground below the workbench surface, without affecting the acting force of the machining tool on the plate and the machining process.

[0013] Preferably, a horizontal pressure-regulating spring is respectively connected between a certain position (the position is obtained by calculating the mechanical knowledge of the lever principle) between the middle position and one end of the two obliquely supporting rods on the same side. The length of the pressure-regulating spring in the free state makes an angle ζ (30 < ζ < 150°) formed between the two supporting rods (upper section). When the angle becomes larger, the pressure-regulating spring is in a stretched state, and when the angle becomes smaller, the pressure-regulating spring is in a compressed state. When the spring is stretched or compressed, it can prevent the angle ζ from being too large or too small, otherwise it may be stuck. When the weight of the plate is greater, the pressure-regulating spring is stretched and the elastic force increases, helping the two supporting rods not to form too large an angle, resulting in instability or collapse.

[0014] Further preferably, when there is no plate loaded on the lifting tabletop, the length of the pressure-regulating spring in the free state ensures that the two obliquely supporting rods support the lifting tabletop and keep it in a lifted state slightly higher than the workbench surface. In this way, when the plate is lifted and dropped, the jacking force of the cylinder piston will be lower than the weight of the plate, and the sling can pass through the two ends of the plate, which is beneficial to reducing the pressure of the high-pressure gas source in the cylinder; moreover, the lifting tabletop is more convenient for receiving the plate lifted from above.

[0015] When the plate lifted above the lifting tabletop is put down, since the weight of the plate is small (or the number of plates is small), the existence of the pressure-regulating spring can make the lifting tabletop higher than the workbench surface, and at this time, the sling can be removed from both ends of the plate. The weight change range of the plate that the lifting tabletop can bear without falling can be determined according to the free length and elastic coefficient of the pressure-regulating spring.

[0016] When increasing the number or weight of the plates, the lifting tabletop will gradually drop to the same height as the worktabletop. At this time, the piston can descend to the lowest position, and the compressed air in the cylinder is temporarily released. It is possible to rely on the auxiliary support of the peripheral worktabletop and the inclined support rods to support the heavier plates.

[0017] Further preferably, the upper end of the inclined support rod is connected to the upper slider, and the lower end is connected to the lower roller. There is a non-connected contact relationship between the lower track and the inclined support rod, which changes the sliding friction into rolling friction and reduces the moving resistance. At the same time, it is convenient to remove the mechanical components above for the maintenance or cleaning of the lower track and the cylinder piston.

[0018] Advantageous effects:

[0019] The present invention can pass through the sling at both ends of the heavier workpiece plate on the processing machine tool for hoisting and transporting; or hoist the heavier plate onto the processing machine tool with a sling and conveniently remove the sling so as not to affect the subsequent machining.

[0020] The support platform of the plate is changed into a combination of a fixed worktabletop and a liftable lifting tabletop, which not only ensures the reliable support of the heavier plate, but also facilitates the passing through or removal of the sling through the position change of the lifting tabletop relative to the worktabletop.

[0021] The piston-cylinder assemblies at both ends below the lifting tabletop serve as the main power source for lifting. At the same time, the frame composed of the upper track, inclined support rods, and lower track below the lifting tabletop gives the lifting tabletop sufficient strength and rigidity.

[0022] The connection of the lower roller between the inclined support rod and the lower track ensures the reduction of moving resistance and can be separated for maintenance.

[0023] The connection of the pressure-regulating spring between the two inclined support rods can ensure that the angle between the two inclined support rods is maintained within a suitable range. The free length of the pressure-regulating spring itself prevents excessive closing and excessive rising of the lifting tabletop; the elastic force of the pressure-regulating spring also prevents the support frame from collapsing due to the weight of the too heavy plate. Description of the drawings

[0024] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0025] Figure 2 is another three-dimensional structural schematic diagram of the present invention;

[0026] Figure 3 is the third three-dimensional structural schematic diagram of the present invention.

[0027] In the figure, 1 - lifting tabletop; 2 - upper track; 3 - lower track; 4 - inclined support rod; 5 - intersection bolt; 6 - pressure regulating spring; 7 - lifting piston; 8 - cylinder; 11 - slider; 12 - lower roller; 20 - worktable surface; 30 - plate; 40 - sling. Detailed implementation mode

[0028] Example 1:

[0029] As Figure 1 shown in the automatic material supporting, picking and placing sling device, there is a worktable surface (20) for machining the plate (30). Inside the hole on the inner side of the worktable surface (20), there is a lifting tabletop (1). Below both ends of the lifting tabletop (1), there are respectively a lifting piston (7) capable of lifting the lifting tabletop (1) and a supporting cylinder (8). Each cylinder (8) is connected to a compressed air source; the length of the lifting tabletop (1) is less than the length of the plate, and the length of the worktable surface (20) is greater than the length of the plate.

[0030] After the lifting tabletop (1) drives the plate above it to rise, it can pass through the sling below both ends of the plate or take away the existing sling (40) from below both ends of the plate (30).

[0031] On the left and right sides of the lower surface of the lifting tabletop (1), upper tracks (2) are respectively arranged. Below the upper tracks (2) corresponding thereto, there are lower tracks (3). Between the upper track (2) and the lower track (3) on each side, there are respectively two inclined support rods (4) cross-actively connected at the middle position. The upper rod end and the lower rod end of the inclined support rod (4) are respectively movably connected with sliders, and the sliders can slide in the upper track (2) or the lower track (3) without slipping off.

[0032] As Figure 2 shown, Figure 1 the slider (11) connected to the lower rod end in

[0033] Example 2:

[0034] As Figure 3 shown in the automatic material supporting, picking and placing sling device, there is a worktable surface (20) for machining the plate. Inside the hole on the inner side of the worktable surface (20), there is a lifting tabletop (1). Below both ends of the lifting tabletop (1), there are respectively a lifting piston (7) capable of lifting the lifting tabletop (1) and a supporting cylinder (8). The lifting power can be provided by a hydraulic press. The length of the lifting tabletop (1) is less than the length of the plate, and the length of the worktable surface (20) is greater than the length of the plate.

[0035] Upper rails (2) are respectively arranged on the left and right sides of the lower surface of the lifting tabletop (1), and lower rails (3) are provided below the corresponding upper rails (2). Between the upper rail (2) and the lower rail (3) on each side, there are two diagonal support rods (4) that are cross-connected and movable at the middle position. The upper rod end of the diagonal support rod (4) is movably connected with a slider, and the slider can slide in the upper rail (2) without slipping off. The lower rod end is connected with a lower roller (12), and the lower roller (12) can roll in the lower rail (3).

[0036] A horizontal pressure regulating spring (6) is connected between certain positions of the two diagonal support rods (4) on the same side; the length of the pressure regulating spring (6) in the free state makes an angle ζ formed between the two support rods (4), where 90 < ζ < 120°.

[0037] When no sheet material (30) is loaded on the lifting tabletop, the length of the pressure regulating spring in the free state ensures that the two diagonal support rods (4) support the lifting tabletop (1) and keep it slightly higher than the workbench surface (20).

Claims

1. An automatic material supporting and sling picking and placing device has a workbench surface for machining the plates placed on it. There is a lifting table surface (1) in the inner holes of the workbench surface (20). Below both ends of the lifting table surface (1), there are a jacking piston (7) capable of lifting the lifting table surface (1) and a supporting cylinder (8) supporting it; characterized in that: The length of the lifting table surface (1) is less than the length of the plate, the length of the workbench surface (20) is greater than the length of the plate, and the width of the workbench surface (20) is greater than the width of the plate; After the lifting table surface (1) drives the plate above it to rise, it can pass through the sling under both ends of the plate or take away the existing sling under both ends of the plate; Upper tracks (2) are respectively arranged on the left and right sides of the lower surface of the lifting table surface (1). There are lower tracks (3) corresponding to the upper tracks (2). Between the upper track (2) and the lower track (3) on each side, there are two obliquely supporting rods (4) cross-actively connected at the middle positions. The upper rod ends of the obliquely supporting rods (4) are movably connected with sliders, and the sliders can slide in the upper tracks (2) without slipping off; A horizontal pressure regulating spring (6) is connected between the two obliquely supporting rods (4) on the same side; When no plate is loaded on the lifting table surface (1), the length of the pressure regulating spring (6) in the free state makes an angle ζ formed between the two obliquely supporting rods (4), where 30° < ζ < 150°; and at this time, the two obliquely supporting rods (4) can support the lifting table surface (1) and keep it slightly higher than the workbench surface (20).

2. The automatic material supporting and picking sling device according to claim 1, wherein: The lower ends of the obliquely supporting rods (4) are connected with lower rollers (12), and the relationship between the lower track (3) and the lower rollers (12) is contact without connection.

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