Cylindrical workpiece handling device and method of use thereof

Abstract

This invention discloses a cylindrical workpiece handling device and its usage method, comprising a main frame with limiting slots and mounting holes. Mounting holes are provided on one pair of opposite sides of the main frame, and limiting slots are provided on another pair of opposite sides. A clamping end includes a first clamping part, a second clamping part, a third clamping part, and a fourth clamping part. Each of the first, second, third, and fourth clamping parts includes a first clamping arm and a second clamping arm. The first clamping arm and the second clamping arm are rotatably connected. The first clamping arm is rotatably engaged with the mounting hole via a rotating shaft, and the second clamping arm is slidably engaged with the limiting slots. This device effectively solves the problems of workpiece falling, bumping, and damage, as well as personnel injury, during the handling of cylindrical workpieces that are small in height but large in weight. It has the advantages of clamping cylindrical workpieces and being adaptable to handling cylindrical workpieces of different diameters.

Description

Technical Field

[0001] This invention relates to the field of mechanical manufacturing and handling equipment technology, and more specifically, to a cylindrical workpiece handling device and its method of use. Background Technology

[0002] Currently, during testing, the assembled cylindrical power unit needs to be moved onto the mounting plate for fixation.

[0003] Currently, when handling power units, assembly is typically done manually by hand, moving them to the designated location. This manual handling method has several problems: firstly, the power unit itself is a cylindrical structure, small in height but large in mass, posing a risk of dropping, bumping, or damaging due to improper operation; secondly, improper handling can cause the unit to fall and injure the operator, resulting in low safety and requiring significant effort. Therefore, to address the problems of bumping, dropping, and personnel injury during the handling of cylindrical workpieces that are small in height but large in mass, there is an urgent need for a cylindrical workpiece handling device and its usage method.

[0004] In summary, at least one of the following technical problems exists:

[0005] The main body of the power unit is a cylindrical structure, which is short in height and heavy in mass. Manual handling of the device poses a risk of improper operation, which could lead to the device falling, being bumped, or being damaged.

[0006] Improper handling can cause equipment to fall and injure the operator, resulting in low safety and requiring a lot of effort to move. Summary of the Invention

[0007] The main objective of this invention is to provide a cylindrical workpiece handling device and its usage method, in order to solve at least one of the following technical problems in the prior art: the main body of the power device is cylindrical, with small height and large mass; manual handling devices are prone to falling, bumping, and being damaged due to improper operation; improper handling can easily cause injury to the operator if the device falls, resulting in low safety and requiring a lot of effort during the handling process.

[0008] To achieve the above objectives, according to one aspect of the present invention, a cylindrical workpiece handling device is provided, comprising:

[0009] The main frame is provided with limiting slots and mounting holes, wherein mounting holes are provided on a pair of opposite sides of the main frame, and limiting slots are provided on another pair of opposite sides.

[0010] The clamping end includes a first clamping part, a second clamping part, a third clamping part, and a fourth clamping part. Each of the first clamping part, the second clamping part, the third clamping part, and the fourth clamping part includes a first clamping arm and a second clamping arm. The first clamping arm and the second clamping arm are rotatably connected. The first clamping arm is rotatably engaged with the mounting hole via a rotating shaft, and the second clamping arm is slidably engaged with the limiting slot.

[0011] Preferably, the main frame is rectangular in shape and includes a first support beam, a second support beam, a third support beam, and a fourth support beam. The first and second support beams are arranged opposite to each other, as are the third and fourth support beams. The first support beam has a pair of mounting holes, the second support beam has a pair of mounting holes, the third support beam has a pair of limiting slots, and the fourth support beam has a pair of limiting slots. A second clamping arm is inserted into each limiting slot, and a first clamping arm is rotatably connected to each mounting hole.

[0012] Preferably, a pair of mounting holes on the first support beam are located near the middle of the first support beam, a pair of mounting holes on the second support beam are located near the middle of the second support beam, a pair of limiting slots on the third support beam are located near the middle of the third support beam, and a pair of mounting holes on the fourth support beam are located near the middle of the fourth support beam.

[0013] Preferably, the first clamping arm includes a first clamping rod and a second clamping rod, one end of the first clamping rod and one end of the second clamping rod are connected by a pipe clamp, the length of the first clamping arm is adjustable, and the other end of the first clamping rod is connected to the mounting hole by a rotating shaft.

[0014] Preferably, the end of the second clamping rod connected to the second clamping arm is provided with a concave gear, and the end of the second clamping arm connected to the second clamping rod is provided with a convex gear. The concave gear and the convex gear cooperate with each other. The upper end of the convex gear is provided with a threaded stud. The concave gear is sleeved on the convex gear, and a nut is provided on the stud.

[0015] Preferably, the first clamping arm and the second clamping arm are arranged in a V-shape, and the V-angle of the first clamping arm and the second clamping arm is adjustable.

[0016] Preferably, the rotating shaft is a semi-threaded bolt, wherein one end with threads is fixed to the main frame, and the other end is used for the rotation of the clamping arm.

[0017] Preferably, each of the first clamping arms has a rubber pad on its second clamping rod.

[0018] Preferably, triangular sheet metal is welded to the inner corner of the main frame.

[0019] According to another aspect of the present invention, a method for using a cylindrical workpiece handling device is provided, comprising: First, the cylindrical workpiece to be handled is placed vertically on a worktable. Based on the height of the cylinder, suitable pads are placed on both sides of the cylindrical workpiece to support the clamping device, ensuring that the clamping device is positioned at a suitable height on the cylindrical workpiece. After placing the clamping device, based on the diameter of the cylindrical workpiece, the pipe clamp is opened to adjust the length of the first clamping arm, and the nut is loosened to adjust the relative angle between the first and second clamping arms until the rubber pads on the four first clamping arms are tightly against the cylindrical workpiece and the second clamping arms are firmly fixed in the limiting grooves. The nut is then tightened to clamp the cylinder. Afterwards, the four auxiliary lifting lugs symmetrically located on both sides of the main frame, in conjunction with external lifting straps, are used to vertically transport the item.

[0020] The technical solution of this invention has the following technical effects:

[0021] By setting up clamping ends and adjusting the length and angle of four clamping parts, allowing them to move around a rotation axis, adhere to the cylindrical workpiece, and be fixed in the limiting slot, cylindrical workpieces of different diameters can be clamped. This effectively solves the problem of workpieces being prone to falling, bumping, and being damaged, as well as personnel injury, during the handling of short but heavy cylindrical workpieces. One end of the clamping part can rotate freely around the rotation axis, and the clamping of the cylindrical workpiece is achieved by the circumferential and vertical movement of the clamping part and the fixing of the limiting slot. The clamping part consists of two parts: a first clamping arm and a second clamping arm, which are arranged in a V-shape. Adjusting the length of the first clamping arm and the angle between the first and second clamping arms can accommodate cylindrical workpieces of different diameters. Attached Figure Description

[0022] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0023] Figure 1 A schematic diagram of the cylindrical workpiece handling device according to the present invention is shown;

[0024] Figure 2 It shows Figure 1 Front view of the cylindrical workpiece handling device in the middle;

[0025] Figure 3 It shows Figure 1 Left view of the cylindrical workpiece handling device in the image;

[0026] Figure 4 It shows Figure 1 A top view of the cylindrical workpiece handling device in the image;

[0027] Figure 5 It shows Figure 1 A bottom view of the cylindrical workpiece handling device in the image;

[0028] Figure 6 It shows Figure 1 Right view of the cylindrical workpiece handling device in the middle;

[0029] Figure 7 It shows Figure 1 A partial enlarged view of the concave gear in the cylindrical workpiece handling device;

[0030] Figure 8 It shows Figure 1 A partial enlarged view of the convex gear in the cylindrical workpiece handling device.

[0031] The above figures include the following reference numerals:

[0032] Main frame 1; First clamping part 2; Second clamping part 3; Third clamping part 4; Fourth clamping part 5; First clamping rod 6; Second clamping arm 7; Triangular sheet metal 8; Rubber pad 9; Rotating shaft 10; Pipe clamp 11; Auxiliary lifting lug 12; Limiting slot 13; First support beam 14; Second support beam 15; Third support beam 16; Fourth support beam 17; Convex gear 18; Concave gear 19; First clamping arm 20; Nut 21; Stud 22; Second clamping rod 23. Detailed Implementation

[0033] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] like Figures 1 to 8 As shown, this embodiment of the invention provides a cylindrical workpiece handling device, including a main frame 1. The main frame 1 is provided with a limiting groove 13 and a mounting hole. The main frame 1 has mounting holes on a pair of opposite sides and limiting grooves 13 on another pair of opposite sides. The clamping end includes a first clamping part 2, a second clamping part 3, a third clamping part 4, and a fourth clamping part 5. The first clamping part 2, the second clamping part 3, the third clamping part 4, and the fourth clamping part 5 each include a first clamping arm 20 and a second clamping arm 7. The first clamping arm 20 and the second clamping arm 7 are rotatably connected. The first clamping arm is rotatably engaged with the mounting hole through a rotating shaft 10. The second clamping arm 7 is slidably engaged with the limiting groove 13.

[0035] In this embodiment, the main frame 1 is provided with limiting slots 13 and mounting holes. Mounting holes are provided on a pair of opposite sides of the main frame 1, and limiting slots 13 are provided on another pair of opposite sides. The main frame 1 is rectangular in structure. The main frame 1 includes a first support beam 14, a second support beam 15, a third support beam 16, and a fourth support beam 17. The first support beam 14 and the second support beam 15 are arranged opposite each other, and the third support beam 16 and the fourth support beam 17 are arranged opposite each other. Each limiting slot 13 is provided with a second clamping arm 7, and each mounting hole is rotatably connected to a first clamping arm 20. The length of the first clamping arm 20 is adjustable. The first clamping arm 20 includes a first clamping rod 6 and a second clamping rod 23. One end of the first clamping rod 6 and one end of the second clamping rod 23 are connected by a pipe clamp 11, and the other end of the first clamping rod 6 is connected to a mounting hole via a rotating shaft 10. The end of the second clamping rod 23 connected to the second clamping arm 7 is provided with a concave gear 19, and the end of the second clamping arm 7 connected to the second clamping rod 23 is provided with a convex gear 18. The concave gear 19 and the convex gear 18 cooperate with each other. The upper end of the convex gear 18 is provided with a threaded stud 22, and the concave gear 19 is sleeved on the convex gear 18. The V-angle between the first clamping arm 20 and the second clamping arm 7 is adjustable, and a nut 21 is fitted onto the stud 22.

[0036] In this embodiment, the clamping end includes a first clamping part 2, a second clamping part 3, a third clamping part 4, and a fourth clamping part 5. The first clamping part 2, the second clamping part 3, the third clamping part 4, and the fourth clamping part 5 each include a first clamping arm 20 and a second clamping arm 7. The first clamping arm 20 and the second clamping arm 7 are rotatably connected. The first clamping arm is rotatably engaged with the mounting hole through a rotating shaft 10. The second clamping arm 7 is slidably engaged with the limiting slot 13.

[0037] In this embodiment, a pair of mounting holes on the first support beam 14 are located near the center of the first support beam 14; a pair of mounting holes on the second support beam 15 are located near the center of the second support beam 15; a pair of limiting slots 13 on the third support beam 16 are located near the center of the third support beam 16; and a pair of mounting holes on the fourth support beam 17 are located near the center of the fourth support beam 17. The rotating shaft 10 uses a semi-threaded bolt, with one threaded end fixed to the main frame 1 and the other end used for the rotation of the clamping arm. A rubber pad 9 is provided on the second clamping rod 23. A triangular sheet metal 8 is welded to the inner corner of the main frame 1.

[0038] Specifically, this embodiment is applicable to clamping and handling devices for cylindrical workpieces that are small in height but large in mass. It addresses the problems of manual handling leading to workpiece drops, collisions, and damage, causing injury to operators, and being both unsafe and laborious. It includes a main frame 1 for clamping the cylindrical workpiece, four clamping parts evenly distributed inside the main frame 1 that can rotate around a rotation axis 10, and limiting slots 13 for fixing the clamping parts. Four mounting holes are provided on the upper and lower crossbeams of the main frame 1, and the first clamping arm 20 is fixed to the main frame 1 via the rotation axis 10. The first clamping arm 20 rotates freely around the rotation axis 10 and can move up and down along the rotation axis 10. Limiting slots 13 are provided on the left and right crossbeams of the main frame 1. When clamping the cylinder, the other end of the second clamping arm 7 is parallel to the limiting slot 13, allowing the other end of the second clamping arm 7 to be placed within the limiting slot 13. Four auxiliary lifting lugs 12 are symmetrically located on the outer side of the main frame 1 for use with external lifting straps, etc.

[0039] Specifically, the first clamping arm 20 includes a first clamping rod 6 and a second clamping rod 23. The first end of the first clamping rod 6 is fixed to the rotating shaft 10, and the second end is fixed to the first end of the second clamping rod 23 via a pipe clamp 11. Pushing or pulling the first clamping rod 6 inwards or outwards adjusts the length of the first clamping arm 20. The second end of the second clamping rod 23 is provided with a concave gear 19, and the first end of the second clamping arm 23 is provided with a convex gear 18, allowing for adjustment of the V-shaped clamping section at different angles, suitable for handling cylindrical workpieces of different diameters. A stud 22 with external threads is provided above the convex gear 18 of the second clamping arm 7 for fixing the first clamping arm 20 and the second clamping arm 7.

[0040] Specifically, during the clamping process, a clamping part with rubber pads 9 of appropriate length and angle is selected and placed in the limiting slot 13 to clamp the cylindrical workpiece. This prevents horizontal displacement of the clamping part. During vertical transport, due to gravity, the clamping part remains fixed within the limiting slot 13 and does not experience vertical displacement. The main frame 1 is a rectangular frame structure with triangular sheet metal 8 welded inside to fix the frame and prevent deformation. The upper and lower crossbeams of the main frame 1 are symmetrical about the center line, and four mounting holes are provided near the center. A rotating shaft 10 is installed in the mounting holes to fix one end of the first clamping arm 20 to the main frame 1. The four first clamping arms 20 can rotate freely around the rotating shaft 10 and can move up and down along the rotating shaft 10. The rotating shaft 10 uses semi-threaded bolts; the threaded part is used to fix it to the main frame 1, while the unthreaded part is used for the rotation and up-and-down movement of the first clamping arms 20. The pipe clamp 11 can be locked with screws, nuts 21, or eccentric locking for quick clamping and release. When the angle needs to be adjusted, loosen nut 21 to adjust the relative angle between the first clamping arm 20 and the second clamping arm 7, and tighten nut 21 after adjustment.

[0041] The length of the first clamping arm 20 and the angle between the first clamping arm 20 and the second clamping arm 7 are adjusted according to the diameter of the cylindrical workpiece, so that the first clamping arm 20 is in close contact with the cylinder and the second clamping arm 7 is fixed in the limiting groove 13. By vertically displacing downward along the rotation axis 10, the four second clamping arms 7 can be firmly fixed in the limiting groove 13, thereby clamping the cylindrical workpiece. The limiting groove 13 can be connected to the main frame 1 by screwing, welding, direct forming, etc. The first clamping arm 20 contacts the cylindrical workpiece, and a wider contact surface end can be designed to increase the contact area with the cylinder. Four auxiliary lifting lugs 12 are symmetrically screwed on the outside of the main frame 1 for use with external slings, etc., to facilitate vertical handling of items using lifting tools. Each first clamping arm 20 has a rubber pad 9 on its inner surface, which can play a non-slip buffering role during handling, thereby better protecting the cylindrical workpiece. Furthermore, the cylindrical workpiece can be clamped with less force by externally extending the second clamping arm 7. During the clamping process, the cylindrical workpiece is clamped by selecting a clamping part with a suitable length and angle and a rubber pad 9, and placing it in the limiting slot 13. As a result, the clamping part will not produce horizontal displacement. During vertical transportation, due to the influence of gravity, the clamping part will be fixed in the limiting slot 13 and will not produce vertical displacement.

[0042] In another embodiment of the present invention, a method for using a cylindrical workpiece handling device is provided. In use, the cylindrical workpiece to be handled is first placed vertically on the worktable. Appropriate pads are placed on both sides of the cylindrical workpiece according to its height to support the clamping device, ensuring the clamping device is positioned at a suitable height on the cylindrical workpiece. After placing the clamping device, the length of the first clamping arm 20 is adjusted by opening the pipe clamp 11 according to the diameter of the cylindrical workpiece, and the relative angle between the first clamping arm 20 and the second clamping arm 7 is adjusted by loosening the nut until the rubber pads on the four first clamping arms 20 are tightly against the cylindrical workpiece and the second clamping arm 7 is firmly fixed in the limiting groove. The nut is then tightened to clamp the cylinder. Afterwards, the four auxiliary lifting lugs 12 symmetrically located on both sides of the main frame 1, in conjunction with external lifting straps, are used to vertically transport the item.

[0043] As can be seen from the above description, the embodiments of the present invention achieve the following technical effects:

[0044] By setting clamping ends and adjusting the length and angle of four clamping parts, allowing them to move around the rotation axis 10, adhere to the cylindrical workpiece, and be fixed in the limiting slot 13, cylindrical workpieces of different diameters can be clamped. This effectively solves the problem of workpieces falling, bumping, being damaged, and personnel being injured during the handling of cylindrical workpieces that are small in height but heavy in mass. One end of the clamping part can rotate freely around the rotation axis 10. The clamping of the cylindrical workpiece is achieved by the circumferential and vertical movement of the clamping part and the fixing of the limiting slot 13. The clamping part is composed of two parts: a first clamping arm 20 and a second clamping arm 7. The two parts are arranged in a V-shape. By adjusting the length of the first clamping arm 20 and the angle between the first clamping arm 20 and the second clamping arm 7, cylindrical workpieces of different diameters can be accommodated.

[0045] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A cylindrical workpiece handling device, characterized in that, Includes the main frame and clamping end; The main frame is rectangular in shape and includes a first support beam, a second support beam, a third support beam, and a fourth support beam. The first and second support beams are arranged opposite each other, as are the third and fourth support beams. The first support beam has a pair of mounting holes, the second support beam has a pair of mounting holes, the third support beam has a pair of limiting slots, and the fourth support beam has a pair of limiting slots. The main frame is also equipped with auxiliary lifting lugs. The clamping end includes a first clamping part, a second clamping part, a third clamping part, and a fourth clamping part. Each of the first, second, third, and fourth clamping parts includes a first clamping arm and a second clamping arm. The first clamping arm and the second clamping arm are rotatably connected. The first clamping arm includes a first clamping rod and a second clamping rod. One end of the first clamping rod and one end of the second clamping rod are connected by a pipe clamp. The length of the first clamping arm is adjustable. The other end of the first clamping rod is connected to a mounting hole via a rotating shaft. The second clamping arm is inserted into the limiting slot and slides in cooperation with the limiting slot. One end of the second clamping rod connected to the second clamping arm is provided with a concave gear, and one end of the second clamping arm connected to the second clamping rod is provided with a convex gear. The concave gear and the convex gear cooperate with each other. The upper end of the convex gear is provided with a threaded stud. The concave gear is sleeved on the convex gear, and a nut is fitted on the stud.

2. The cylindrical workpiece handling device as described in claim 1, characterized in that, A pair of mounting holes on the first support beam are located near the middle of the first support beam; a pair of mounting holes on the second support beam are located near the middle of the second support beam; a pair of limiting slots on the third support beam are located near the middle of the third support beam; and a pair of mounting holes on the fourth support beam are located near the middle of the fourth support beam.

3. The cylindrical workpiece handling device as described in claim 1, characterized in that, The first clamping arm and the second clamping arm are arranged in a V-shape, and the V-angle of the first clamping arm and the second clamping arm is adjustable.

4. The cylindrical workpiece handling device as described in claim 1, characterized in that, The rotating shaft uses a semi-threaded bolt, with one threaded end fixed to the main frame and the other end used for the rotation of the clamping arm.

5. The cylindrical workpiece handling device as described in claim 1, characterized in that, Each first clamping arm has a rubber pad on its second clamping rod.

6. The cylindrical workpiece handling device as described in claim 1, characterized in that, The main frame has triangular sheet metal welded to its inner corners.

7. A method of using a cylindrical workpiece handling device, based on the cylindrical workpiece handling device according to any one of claims 1-6, characterized in that, include: When using the equipment, first place the cylindrical workpiece to be transported vertically on the worktable. According to the height of the cylinder, select appropriate pads and place them on both sides of the cylindrical workpiece to support the clamping device, ensuring that the clamping device is at the appropriate height of the cylindrical workpiece. After placing the clamping device, according to the diameter of the cylindrical workpiece, open the pipe clamp to adjust the length of the first clamping arm, and loosen the nut to adjust the relative angle between the first clamping arm and the second clamping arm until the rubber pads on the four first clamping arms are close to the cylindrical workpiece and the second clamping arm is firmly fixed in the limit slot. Tighten the nut to clamp the cylinder. Then, use the four auxiliary lifting lugs symmetrical on both sides of the main frame in conjunction with the external lifting straps to vertically transport the items.

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