A hatch cover processing device and method
By using the adaptive clamping mechanism and the mechanical linkage of the welding head, the problems of reduced clamping force and separate control of atmosphere protection in the hatch cover welding device at high temperatures are solved, achieving automatic compensation clamping and simplified operation, thus improving welding accuracy and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 扬州海翼船舶工程有限公司
- Filing Date
- 2026-05-26
- Publication Date
- 2026-06-26
AI Technical Summary
Existing hatch cover welding equipment cannot automatically compensate for the thermal expansion of the workpiece during high-temperature welding, resulting in a decrease in clamping force, which affects positioning accuracy and welding quality. At the same time, the welding protective atmosphere and slag removal functions are controlled separately, which increases the complexity of the equipment and the number of operating steps.
An adaptive clamping mechanism is adopted, which uses welding heat to drive the expansion block to expand, automatically compensates for clamping looseness, and realizes automatic switching between inert gas protection and slag removal through the lifting and lowering action of the welding head, simplifying the gas circuit system.
It achieves adaptive clamping that automatically compensates for workpiece thermal expansion, improving welding accuracy and efficiency, simplifying operation steps, reducing manual intervention, and increasing the automation level of the equipment.
Smart Images

Figure CN122274355A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the technical field of hatch cover processing, and more particularly to a hatch cover processing apparatus and method. Background Technology
[0002] Hatch covers are crucial structural components of ships, and their welding quality directly affects the ship's sealing and structural safety. During the welding process, hatch covers typically need to be fixed to a workbench, and multiple weld seams are continuously welded using a welding head. Existing hatch cover welding equipment suffers from the following problems in practical applications: The high temperatures generated during welding cause the workpiece to expand, and traditional spring or screw clamping methods cannot automatically compensate for this expansion. As the workpiece expands, the clamping force decreases, leading to reduced workpiece positioning accuracy and even welding deformation. Existing devices typically rely on manual inspection and re-tightening of the fixture multiple times during welding, which is not only inefficient but also difficult to operate in the high-temperature welding environment.
[0003] During welding, an inert gas protective atmosphere needs to be formed around the molten pool to prevent oxidation. After welding, slag and spatter on the weld surface need to be removed promptly to ensure the smooth progress of subsequent processes. In existing equipment, these two functions are usually performed by two independent gas circuit systems, resulting in complex equipment structures and requiring separate control, which increases the number of operating steps and the risk of failure. Summary of the Invention
[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.
[0005] In view of the problems existing in the above-mentioned hatch cover processing device and method, the present invention is proposed.
[0006] Therefore, the purpose of this invention is to provide a hatch cover processing device and method, the purpose of which is to improve processing efficiency.
[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a worktable, wherein a clamping component is provided on the top of the worktable, a movable frame is provided on the top of the worktable, and a processing mechanism is provided on one side of the movable frame; The clamping component includes a first lead screw, a first movable block connected to the outside of the first lead screw, and a movable frame fixedly provided on one side of the first movable block; The movable frame includes a second lead screw and a limiting round rod; The processing mechanism includes a housing, inside which a second cylinder is disposed, the output end of the second cylinder is connected to an actuating plate, the bottom of the actuating plate is connected to a welding head, a pressing block is fixedly disposed on one side of the actuating plate, and a first air outlet and a second air outlet are disposed inside the housing. The bottom of the housing is provided with a conical jet head, the inside of the housing is provided with an air inlet groove, and one-way air inlet is provided on one side of the air inlet groove; The housing is equipped with a striking element, which includes a movable rod. A piston head is connected to one side of the movable rod. The piston head is located inside the liquid storage tank. A flow channel is connected to one side of the liquid storage tank. A circular hole is opened on one side of the flow channel. A seventh spring is provided on one side of the circular hole. A striking rod is connected to one side of the seventh spring. A striking head is provided on one side of the striking rod.
[0008] In a preferred embodiment of the hatch cover processing device and method of the present invention, a limit rod is fixedly provided at the bottom of the movable frame, and a clamping member is slidably connected to one side of the movable frame.
[0009] In a preferred embodiment of the hatch cover processing device and method of the present invention, the clamping member includes a movable rod, a first spring is provided on the outer side of the movable rod, and a pressure block is fixedly connected to one end of the movable rod.
[0010] In a preferred embodiment of the hatch cover processing device and method of the present invention, a reinforcing member is provided on one side of the movable frame, the reinforcing member includes a first cylinder, and a reinforcing block is provided on one side of the first cylinder.
[0011] In a preferred embodiment of the hatch cover processing device and method of the present invention, the reinforcing block includes a heat transfer groove opened at its bottom, an expansion block is provided at the top of the heat transfer groove, and an inclined block is provided on one side of the expansion block.
[0012] In a preferred embodiment of the hatch cover processing device and method of the present invention, a second spring is provided on one side of the inclined block, a pressing block is provided at the bottom of the inclined block, and a third spring is provided on one side of the bottom of the pressing block.
[0013] As a preferred embodiment of the hatch cover processing device and method of the present invention, the processing mechanism includes a housing, a second cylinder is provided inside the housing, an actuating plate is connected to the output end of the second cylinder, a welding head is connected to the bottom of the actuating plate, an extrusion block is fixedly provided on one side of the actuating plate, and a first air outlet and a second air outlet are provided inside the housing.
[0014] In a preferred embodiment of the hatch cover processing device and method of the present invention, the first air outlet component includes a fourth spring, a movable disk is provided on one side of the fourth spring, the movable disk is slidably connected to the interior of a stroke groove, and a fifth spring is provided on one side of the movable disk.
[0015] In a preferred embodiment of the hatch cover processing device and method of the present invention, the second air outlet includes a cylindrical air outlet connected to its bottom, a limiting disc is slidably connected inside the cylindrical air outlet, a limiting column is provided on one side of the limiting disc, and a sixth spring is provided on the outer side of the limiting column.
[0016] As a preferred embodiment of the hatch cover processing device and method of the present invention, the hatch cover is placed in the clamping component and clamped and positioned, and the first cylinder is activated to make the reinforcing block fit against the surface of the workpiece. During welding, the expansion block absorbs heat and expands, pushing the inclined block to move the lower pressure block downward, automatically compensating for any loose clamping. The second cylinder is activated, causing the welding head to move downwards. Inert gas is released from the cylinder outlet to cover the molten pool and form a protective layer. After welding is completed, the second cylinder drives the welding head to move upward, and the compressed gas is ejected at high speed from the conical jet nozzle to blow away the welding slag. At the same time, the piston rod drives the hammering head to hammer the weld to relieve stress.
[0017] The beneficial effects of this invention are as follows: By incorporating a heat transfer groove and an expansion block in the clamping component, the heat generated during welding is cleverly utilized to drive the expansion block to thermally expand. After being heated, the expansion block pushes the inclined block to move, and under the action of the inclined surface, it further presses the workpiece downwards by the pressure block. The more intense the welding and the greater the heat, the greater the expansion of the expansion block, resulting in a stronger additional clamping force, automatically compensating for any possible loosening of the clamping due to thermal expansion. This purely mechanical heat-force conversion mechanism requires no sensors or external control, achieving an adaptive clamping effect of "tightening as welding progresses." The automatic timing switching between inert gas protection and high-speed slag removal functions is achieved by using a second cylinder to drive the welding head to rise and fall. When the welding head descends for welding, the inert gas from the second outlet component covers the molten pool at a high flow rate and low speed through the cylindrical outlet head, forming a protective atmosphere. When the welding head rises to complete welding, the action plate drives the extrusion block upwards, compressing the gas inside the first outlet component, causing the gas to be ejected at high speed through the conical jet nozzle, blowing away the weld slag and spatter from the weld surface. The same pneumatic system can switch between "pre-weld protection" and "post-weld purging" functions simply through the mechanical linkage of the welding head's lifting and lowering motion. When the second cylinder drives the welding head upward, the moving piston rod moves upward simultaneously. The piston head squeezes the liquid in the storage tank, and the liquid enters the moving groove through the flow channel and the round hole, pushing the striking rod to overcome the elastic force of the seventh spring, thus driving the striking head to hammer the weld. This design transforms the inevitable action of the welding head rising into a hammering driving force, automatically performing a hammering action after each welding operation, forming "hammering immediately after welding." The hammering force and timing are completely synchronized with the welding action, releasing residual welding stress and eliminating the workload of manual hammering. Attached Figure Description
[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein: Figure 1 This is a schematic diagram of the overall structure of the present invention.
[0019] Figure 2 Provided by the present invention Figure 1 Enlarged diagram of point A in the middle.
[0020] Figure 3 This is a schematic diagram of the processing component provided by the present invention.
[0021] Figure 4 This is a schematic diagram of the internal cross-section of the processed component provided by the present invention.
[0022] Figure 5 This is a partial schematic diagram of the processing component provided by the present invention.
[0023] Figure 6 Provided by the present invention Figure 3 Another perspective illustration.
[0024] Figure 7 Provided by the present invention Figure 6 Enlarged diagram of point B in the middle.
[0025] Figure 8 This is a schematic diagram of the interior of the reinforcing block provided by the present invention. Detailed Implementation
[0026] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
[0027] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.
[0028] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.
[0029] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.
[0030] Reference Figures 1-8 The present invention provides an embodiment, specifically a hatch cover processing device and method.
[0031] Specifically: a workbench 1, a clamping component 2 on the top of the workbench 1, a movable frame 3 on the top of the workbench 1, and a processing mechanism 4 on one side of the movable frame 3; The clamping component 2 includes a first lead screw 21, a first moving block 22 connected to the outside of the first lead screw 21, and a moving frame 23 fixedly provided on one side of the first moving block 22; The movable frame 3 includes a second lead screw 31 and a limiting round rod 32; The processing mechanism 4 includes a housing 41, a second cylinder 42 is provided inside the housing 41, an action plate 43 is connected to the output end of the second cylinder 42, a welding head 44 is connected to the bottom of the action plate 43, an extrusion block 45 is fixedly provided on one side of the action plate 43, and a first air outlet 46 and a second air outlet 47 are provided inside the housing 41. A conical jet head 465 is provided at the bottom of the housing 41, and an air inlet groove 48 is provided inside the housing 41. A one-way air inlet hole 481 is provided on one side of the air inlet groove 48. The housing 41 has an internal striking element 49, which includes a moving rod 491. A piston head 492 is connected to one side of the moving rod 491 and is located inside a liquid storage tank 493. A flow channel 494 is connected to one side of the liquid storage tank 493. A circular hole 495 is formed on one side of the flow channel 494, and a seventh spring 496 is located on one side of the circular hole 495. A striking rod 497 is connected to one side of the seventh spring 496, and a striking head 498 is located on one side of the striking rod 497. A limit rod 24 is fixedly installed at the bottom of the movable frame 23, and a clamping element 25 is slidably connected to one side of the movable frame 23. The clamping element 25 includes a moving rod 251, a first spring 252 on the outer side of the moving rod 251, and a pressure block 253 fixedly connected to one end of the moving rod 251. A reinforcing member 26 is provided on one side of the movable frame 23. The reinforcing member 26 includes a first cylinder 261, and a reinforcing block 262 is provided on one side of the first cylinder 261. The reinforcing block 262 includes a heat transfer groove 2621 opened at its bottom, an expansion block 2622 is provided at the top of the heat transfer groove 2621, and an inclined block 2623 is provided on one side of the expansion block 2622. A second spring 2625 is provided on one side of the inclined block 2623, a pressing block 2625 is provided at the bottom of the inclined block 2623, and a third spring 2626 is provided on one side of the bottom of the pressing block 2625. The processing mechanism 4 includes a housing 41. A second cylinder 42 is provided inside the housing 41. The output end of the second cylinder 42 is connected to an actuating plate 43. A welding head 44 is connected to the bottom of the actuating plate 43. A pressing block 45 is fixedly provided on one side of the actuating plate 43. A first air outlet 46 and a second air outlet 47 are provided inside the housing 41. The first air outlet 46 includes a fourth spring 461, a movable disk 462 is provided on one side of the fourth spring 461, the movable disk 462 is slidably connected to the interior of the stroke groove 463, and a fifth spring 464 is provided on one side of the movable disk 462. The second air outlet 47 includes a cylindrical air outlet 471 connected to its bottom, a limiting disk 472 is slidably connected inside the cylindrical air outlet 471, a limiting column 473 is provided on one side of the limiting disk 472, and a sixth spring 474 is provided on the outer side of the limiting column 473. The hatch cover is placed in the clamping component 2 and clamped for positioning. The first cylinder 261 is activated to make the reinforcing block 262 fit against the surface of the workpiece. During welding, the expansion block 2622 absorbs heat and expands, pushing the inclined block 2623 to move the lower pressure block 2625 downward, automatically compensating for clamping looseness; The second cylinder 42 is activated, which drives the welding head 44 to move downward. Inert gas is released from the cylinder outlet 471 to cover the molten pool and form a protective layer. After welding is completed, the second cylinder 42 drives the welding head 44 to move upward, and the compressed gas is ejected at high speed from the conical jet nozzle 465 to blow away the welding slag. At the same time, the piston rod 491 drives the hammering head 498 to hammer the weld to relieve stress.
[0032] In specific implementation of this invention: When the staff uses it, they place the hatch cover inside the clamping component 2 on the upper side of the workbench 1 and drive the first lead screw 21 to rotate. With the help of the limiting rod 24, the moving frame 23 can move stably, so that the two pressure blocks 253 can clamp the hatch cover from the left and right sides. The pressure blocks 253 can press the hatch cover under the action of the moving rod 251 and the first spring 252 to achieve the positioning of the hatch cover. The first cylinder 261 is activated to drive the reinforcing block 262 to fit against the surface of the hatch cover, further strengthening the fixation. Due to the high temperature generated by welding, the workpiece is thermally expanded and may easily open the clamp. However, in this invention, the expansion block 2622 in the heat transfer groove 2621 will expand after absorbing heat, thereby squeezing the inclined block 2623 to one side. Under the action of its inclined surface, the lower pressure block 2625 moves down. The second spring 2624 and the third spring 2626 ensure that it can automatically reset. This automatically compensates for the clamping loosening that may be caused by the thermal expansion of the workpiece. Moreover, the more intense the welding and the greater the heat, the stronger the additional clamping force generated.
[0033] When the second cylinder 42 drives the action plate 43 and the welding head 44 to move upward, the action plate 43 drives the extrusion block 45 to move upward, thereby using the fourth spring 46 to move the disk 462 upward, so that the internal gas is ejected at high speed through the conical jet head 465, blowing away the welding slag and spatter on the surface of the weld.
[0034] When the second cylinder 42 drives the action plate 43 and the welding head 44 to move downward, the inert gas from the second gas outlet 47 flows into the cylindrical gas outlet 471, squeezing the limiting disc 472, so that the limiting disc 472 no longer seals the cylindrical gas outlet 471, thereby the inert gas covers the molten pool at a large flow rate and low speed, forming a protective atmosphere.
[0035] Preferably, the air inlet groove 48 ensures the replenishment of inert gas, and the one-way air inlet hole 481 ensures that the inert gas can only enter the first air outlet 46 through the air inlet groove 48. In addition, the up and down movement of the extrusion block 45 achieves the effects of pre-welding protection and post-welding slag removal.
[0036] Furthermore, when the second cylinder 42 drives the action plate 43 and welding head 44 to move upward, the moving piston rod 491 also moves upward synchronously, thereby the piston head 492 squeezes the liquid in the storage tank 493, so that the liquid enters the flow channel 494, passes through the round hole 495 and enters the moving channel, thereby the striking rod 497 stretches the seventh spring 496, driving the striking head 498 to hammer the weld, releasing the residual welding stress and reducing the workload of manual hammering. When the second cylinder 42 drives the action plate 43 and welding head 44 to move downward, the flow channel 494 is sucked back into the storage tank 493, and the striking head 498 is reset under the action of the seventh spring 496.
[0037] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible without substantially departing from the novelty and advantages of the subject matter described in this application. For example, variations in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values such as temperature, pressure, etc., installation arrangements, use of materials, color, orientation, etc. For instance, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise changed, and the nature or number or position of discrete elements may be altered or changed. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure performing the function described herein, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims. Furthermore, for the purpose of providing a concise description of exemplary embodiments, not all features of the actual embodiments may be omitted, i.e., those features not relevant to the currently considered best mode for carrying out the invention, or those features not relevant to implementing the invention.
[0038] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.
Claims
1. A hatch cover processing device, characterized in that: include, A workbench (1), a clamping component (2) is provided on the top of the workbench (1), a movable frame (3) is provided on the top of the workbench (1), and a processing mechanism (4) is provided on one side of the movable frame (3). The clamping component (2) includes a first lead screw (21), a first moving block (22) connected to the outside of the first lead screw (21), and a moving frame (23) fixedly provided on one side of the first moving block (22). The movable frame (3) includes a second lead screw (31) and a limiting round rod (32). The processing mechanism (4) includes a housing (41), inside which a second cylinder (42) is provided. The output end of the second cylinder (42) is connected to an action plate (43). The bottom of the action plate (43) is connected to a welding head (44). A pressing block (45) is fixedly provided on one side of the action plate (43). Inside the housing (41) are a first air outlet (46) and a second air outlet (47). The bottom of the housing (41) is provided with a conical jet head (465), and an air inlet groove (48) is provided inside the housing (41). A one-way air inlet hole (481) is provided on one side of the air inlet groove (48). The housing (41) is provided with a striking element (49) inside. The striking element (49) includes a moving rod (491). A piston head (492) is connected to one side of the moving rod (491). The piston head (492) is located inside the liquid storage tank (493). A flow channel (494) is connected to one side of the liquid storage tank (493). A circular hole (495) is opened on one side of the flow channel (494). A seventh spring (496) is provided on one side of the circular hole (495). A striking rod (497) is connected to one side of the seventh spring (496). A striking head (498) is provided on one side of the striking rod (497).
2. The hatch cover processing device according to claim 1, characterized in that: The bottom of the movable frame (23) is fixedly provided with a limit rod (24), and a clamping member (25) is slidably connected to one side of the movable frame (23).
3. The hatch cover processing device according to claim 2, characterized in that: The clamping member (25) includes a moving rod (251), a first spring (252) is provided on the outside of the moving rod (251), and a pressure block (253) is fixedly connected to one end of the moving rod (251).
4. The hatch cover processing device according to claim 2, characterized in that: A reinforcing member (26) is provided on one side of the movable frame (23). The reinforcing member (26) includes a first cylinder (261) and a reinforcing block (262) is provided on one side of the first cylinder (261).
5. The hatch cover processing device according to claim 4, characterized in that: The reinforcing block (262) includes a heat transfer groove (2621) at its bottom, an expansion block (2622) at the top of the heat transfer groove (2621), and an inclined block (2623) on one side of the expansion block (2622).
6. The hatch cover processing device according to claim 5, characterized in that: A second spring (2625) is provided on one side of the inclined block (2623), a pressing block (2625) is provided at the bottom of the inclined block (2623), and a third spring (2626) is provided on one side of the bottom of the pressing block (2625).
7. The hatch cover processing device according to claim 1, characterized in that: The processing mechanism (4) includes a housing (41), inside which a second cylinder (42) is provided. The output end of the second cylinder (42) is connected to an action plate (43). The bottom of the action plate (43) is connected to a welding head (44). A pressing block (45) is fixedly provided on one side of the action plate (43). Inside the housing (41) are a first air outlet (46) and a second air outlet (47).
8. The hatch cover processing device according to claim 1, characterized in that: The first air outlet (46) includes a fourth spring (461), a movable disk (462) is provided on one side of the fourth spring (461), the movable disk (462) is slidably connected to the interior of the stroke groove (463), and a fifth spring (464) is provided on one side of the movable disk (462).
9. The hatch cover processing device according to claim 7, characterized in that: The second air outlet (47) includes a cylindrical air outlet (471) connected to its bottom. A limiting disc (472) is slidably connected inside the cylindrical air outlet (471). A limiting column (473) is provided on one side of the limiting disc (472), and a sixth spring (474) is provided on the outside of the limiting column (473).
10. A method for processing a hatch cover, characterized in that: The hatch cover processing apparatus according to any one of claims 1 to 9 includes, Place the hatch cover in the clamping component (2) and clamp it in place. Start the first cylinder (261) to make the reinforcing block (262) fit against the surface of the workpiece. During welding, the expansion block (2622) absorbs heat and expands, pushing the inclined block (2623) to move the pressure block (2625) downward, automatically compensating for clamping looseness; The second cylinder (42) is activated, which drives the welding head (44) to move down. Inert gas from the cylinder outlet (471) covers the molten pool to form a protective layer. After welding is completed, the second cylinder (42) drives the welding head (44) to move upward, and the compressed gas is ejected at high speed from the conical jet nozzle (465) to blow away the welding slag. At the same time, the piston rod (491) drives the hammering head (498) to hammer the weld to relieve stress.