A metal plate clamping and rotating device

Abstract

This invention relates to a metal plate clamping and rotating device, belonging to the technical field of lifting, assembly, and transfer facilities. The device includes a crossbeam supporting a bidirectional threaded screw and a splined shaft, and a temporary storage platform located below the crossbeam. At least four threaded blocks, each forming a helical pair, are spaced apart on the screw. These threaded blocks and the crossbeam form a horizontal moving pair and support a drive wheel. The central hole of the drive wheel passes through the splined shaft and surrounds a lifting strap that engages with it. Hooks are installed at both ends of the lifting strap to hook onto the upper lifting rings of the lifting lugs. The middle of the lifting lugs is hinged to the end of the lifting beam, and a hook at the lower part of the lifting lugs hooks onto one end of a clamping plate. Elastic limiting posts extending downwards are distributed at intervals along the length of the lifting beam. This invention achieves reliable overall clamping of large-sized lead plates, significantly reducing defects such as lead plate deformation, scratches, and dents. It is adaptable to lead plates of different lengths, has a wide range of applications, and can meet the needs of different lead plate assembly angles, providing convenience and speed.

Description

Technical Field

[0001] This invention relates to a clamping and rotating device, and more particularly to a metal plate clamping and rotating device, belonging to the technical field of lifting, assembly and transfer facilities. Background Technology

[0002] When lifting lead plates with large dimensions, the soft and highly malleable nature of lead makes them prone to localized deformation when using traditional lifting tools such as hooks and slings, necessitating re-adjustment during subsequent installation. Furthermore, different installation planes require different installation angles, necessitating rotation of the lead plate to the appropriate angle. Traditional lifting tools are not only inadequate for clamping large, integral lead plates but also lack the ability to adjust rotation angles, thus failing to adequately address the transfer and assembly of large metal plates like lead plates. Summary of the Invention

[0003] The purpose of this invention is to address the problems existing in the prior art by proposing a metal plate clamping and rotating device that can reliably achieve clamping, lifting, and angle adjustment, thereby properly solving the problem of transporting and assembling large-sized metal plates such as lead plates.

[0004] To achieve the above objectives, the basic technical solution of the metal plate clamping and rotating device of the present invention is as follows: it includes a crossbeam supporting a bidirectional threaded screw and a spline shaft, and a temporary storage platform located under the crossbeam. The screw is equipped with at least four threaded blocks that form a helical pair with it at intervals. The threaded blocks and the crossbeam form a horizontal moving pair and support a drive wheel. The central hole of the drive wheel passes through the spline shaft and surrounds a lifting strap that meshes with it. The two ends of the lifting strap are respectively equipped with hooks that hook onto the upper lifting ring of the lifting lug. The middle part of the lifting lug is hinged to the end of the lifting beam, and the hook at the lower part of the lifting lug hooks onto one end of the bearing clamp plate. The lifting beam has downwardly extending elastic limiting posts distributed at intervals along its length.

[0005] In use, metal plates such as lead plates are first placed on a temporary storage platform. The spacing of the threaded blocks is adjusted according to the length using a double-threaded screw. Then, the metal plates to be lifted are supported by the bearing plates of each lifting beam, and the hooks of each lifting strap are hooked onto the corresponding lifting lugs. When lifting the beam, the metal plates can be smoothly raised as needed using the spaced bearing plates. When it is necessary to change the angle of the metal plates, simply rotate the spline shaft so that the lifting straps are driven by the drive wheel and driven wheel to change the height of the hooks at both ends as needed. During this process, the clamping action of the limit post and the bearing plates ensures that the position of the metal plates is stable.

[0006] A further improvement to this invention is that the lead screw has threads with different directions of rotation on its left and right sides. Threads with the same direction of rotation consist of three sections of variable-pitch threads with decreasing pitch from the outside in. Each section of the thread is equipped with threaded blocks that form a helical pair and are evenly spaced. The pitch of each thread changes so that the threaded blocks remain evenly spaced during rotation. In this way, after adjustment as needed, the clamping plate can always maintain uniform clamping support on the metal plate and prevent deformation.

[0007] A further improvement to this invention is that the threaded block supports a driving pulley and a pair of driven pulleys arranged in an inverted triangular pattern; a lifting belt is wound around and meshes with the driving pulley and the pair of driven pulleys, forming a synchronous toothed belt drive. This allows for more reliable adjustment of the lifting angle.

[0008] A further improvement to the present invention is that the top of the threaded block forms a horizontal moving pair through a slider fixed to it and a straight rail fixed to the crossbeam.

[0009] A further improvement to the present invention is that the outer ends of the lead screw and the spline shaft are respectively equipped with a drive handwheel and a rotation handwheel.

[0010] A further improvement of the present invention is that the temporary storage platform includes multiple support platforms with sliding wheels at the bottom, and adjacent support platforms are hinged together by an X-shaped linkage mechanism. Attached Figure Description

[0011] The invention will now be further described in detail with reference to the accompanying drawings.

[0012] Figure 1 This is a three-dimensional structural schematic diagram of Embodiment 1 of the present invention.

[0013] Figure 2 yes Figure 1 A schematic diagram of the planar projection structure of the embodiment.

[0014] Figure 3 yes Figure 2 Side view.

[0015] Figure 4 yes Figure 1 A partial three-dimensional exploded view of the embodiment.

[0016] Figure 5 yes Figure 2 A magnified schematic diagram of the structure at point A.

[0017] Figure 6 yes Figure 5 A side view structural diagram.

[0018] Figure 7 yes Figure 3 A magnified structural diagram of point C.

[0019] Figure 8 yes Figure 1 A schematic diagram of the enlarged lead screw structure in the embodiment.

[0020] Figure 9 and Figure 10 They are Figure 1 A schematic diagram of the hoisting angle in an embodiment. Detailed Implementation

[0021] Example 1

[0022] The basic structure of the metal plate clamping and rotating device in this implementation is as follows: Figure 1 , Figure 2 and Figure 3 As shown, it mainly consists of six spaced screw telescopic mechanisms 2 installed on the crossbeam 1, a sling rotation mechanism 3 meshing with the screw telescopic mechanisms 2, a clamping and hoisting mechanism 4 hooked to the sling rotation mechanism 3, and a temporary storage platform 5 located below it.

[0023] The temporary storage platform 5 includes six support platforms 5-1 with sliding wheels 5-3 at the bottom. Adjacent support platforms 5-1 are hinged together by an X-shaped linkage mechanism 5-2. Therefore, the spacing between the support platforms 5-1 can be adjusted according to the length of different lead plates by means of the linkage mechanism, so that the temporary storage platform 5 has a suitable length.

[0024] like Figure 4 and Figure 5 As shown, the crossbeam 1 supports the bidirectional threaded screw 2-3 and the splined shaft 3-1 parallel to it. The outer ends of the screw 2-3 and the splined shaft 3-1 are respectively equipped with a drive handwheel 2-4 and a drive rotation handwheel 3-5.

[0025] Screw 2-3 Figure 8 As shown, not only do the left and right sections of the thread have different directions of rotation, but the threads with the same direction of rotation are also composed of three variable-pitch threads 2-3.1, 2-3.2, and 2-3.3 with decreasing pitch from the outside to the inside. Each thread section is equipped with thread blocks 2-2 that form a helical pair and are evenly spaced. The pitch variation of each thread ensures that the thread blocks 2-2 are evenly spaced when rotating.

[0026] The top of the threaded block 2-2 forms a horizontal moving pair via the slider 2-1 fixed thereto and the straight rail 1-1 fixed to the crossbeam 1. For example... Figure 6 As shown, the lower part of the threaded block 2-2 is supported by a driving pulley 3-2 and a pair of driven pulleys 3-3 arranged in an inverted triangular pattern. The central spline hole of the driving pulley 3-2 is inserted into the spline shaft 3-1, and together with the belts 3-4 that meander around and mesh with the pair of driven pulleys 3-3, a synchronous toothed belt drive structure is formed.

[0027] like Figure 7As shown, both ends of the sling 3-4 are equipped with hooks 3-4.1 that hook onto the upper rectangular lifting ring of the lifting lug 4-1. The middle part of the lifting lug 4-1 is hinged to the end of the lifting beam 4-2, and the lower hook 4-1.1 of the lifting lug 4-1 hooks onto one end of the bearing clamp 4-4. The lifting beam 4-2 has downwardly extending elastic limiting posts 4-3 spaced along its length.

[0028] During hoisting, the lead plate W is first placed on the temporary storage platform 5. The drive handwheel 2-4 is rotated according to its length, causing the threaded block 2-2 to shift via the lead screw 2-3, positioning the lifting straps 3-4 at ideal intervals. The lead plate W is then positioned between the lifting beam 4-2 and the supporting clamp 4-4, and hooked by the hook 4-1.1. The rectangular lifting lug 4-1 is then hooked and lifted upwards using the hook 3-4.1. The lead plate W is then securely held by the evenly distributed limiting posts 4-3 and the corresponding supporting clamp 4-4 due to the adaptive rotation of the lifting lug 4-1 around its hinge center. Not only does the clamping force increase with the weight of the lead plate W, but the evenly spaced lifting beams and uniformly distributed limiting posts effectively prevent deformation and scratches on the lead plate. The limiting posts 4-3 at both ends of the lifting beam 4-2, which do not contact the surface of the lead plate W, extend elastically, limiting the lateral displacement of the lead plate W.

[0029] When it is necessary to adjust the assembly angle of the lead plate, turn the drive handwheel 3-5, which drives each driving wheel 3-2 and each driven wheel 3-3 to rotate synchronously through the spline shaft 3-1, so that the hooks at both ends of the sling 3-4 can be raised and lowered as needed. Figure 9 , Figure 10 As shown, the lead plate is rotated to a suitable angle. Practice has proven that this embodiment has the following significant beneficial effects:

[0030] 1. It achieves reliable overall clamping of large-size lead plates, significantly reducing defects such as lead plate deformation, scratches, and dents.

[0031] 2. It is compatible with lead plates of different lengths and has a wide range of applications.

[0032] 3. It achieves rotation within a range of ±90°, thus meeting the needs of different lead plate assembly angles, which is convenient and quick.

[0033] The above embodiments do not limit the scope of the invention. Equivalent changes made in accordance with the concept of the invention are still within the scope of protection of the invention.

Claims

1. A metal plate clamping and rotating device, characterized in that: The device includes a crossbeam supporting a bidirectional threaded screw and a splined shaft, and a temporary storage platform located below the crossbeam. The screw is equipped with at least four threaded blocks that form a helical pair with it at intervals. The threaded blocks and the crossbeam form a horizontal sliding pair and support a drive wheel. The central hole of the drive wheel passes through the splined shaft and surrounds a lifting strap that engages with it. Both ends of the lifting strap are equipped with hooks that hook onto the upper lifting rings of the lifting lugs. The middle part of the lifting lugs is hinged to the end of the lifting beam, and the hook at the lower part of the lifting lugs hooks onto one end of the support plate. The lifting beam has downwardly extending elastic limiting posts distributed at intervals along its length.

2. The metal plate clamping and rotating device according to claim 1, characterized in that: The lead screw has threads with different directions of rotation on its left and right sides. The threads with the same direction of rotation are composed of three variable pitch threads with decreasing pitch from the outside to the inside. Each thread is equipped with thread blocks that form a helical pair and are evenly distributed. The pitch of each thread changes so that the thread blocks are evenly spaced when the screw rotates.

3. The metal plate clamping and rotating device according to claim 2, characterized in that: The threaded block supports a driving pulley and a pair of driven pulleys arranged in an inverted triangular pattern; the driving pulley and the pair of driven pulleys are surrounded by a belt that meshes with them, forming a synchronous toothed belt drive.

4. The metal plate clamping and rotating device according to claim 3, characterized in that: The top of the threaded block forms a horizontal moving pair via a slider fixed to it and a straight rail fixed to the crossbeam.

5. The metal plate clamping and rotating device according to claim 4, characterized in that: The outer ends of the lead screw and splined shaft are respectively equipped with a drive handwheel and a rotation handwheel.

6. The metal plate clamping and rotating device according to any one of claims 1 to 5, characterized in that: The temporary storage platform includes multiple support platforms with sliding wheels at the bottom, and adjacent support platforms are hinged together by an X-shaped linkage mechanism.

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