Multi-station linkage positioning device for ship fittings

Abstract

This invention provides a multi-station linkage positioning device for ship parts, including a frame, a limiting base, positioning modules, a spacing adjustment plate, a limiting baffle, and a hydraulic cylinder. The limiting base is mounted on the frame, and multiple positioning modules are slidably disposed within the limiting base. The spacing adjustment plate is located on both sides of the limiting base and connected to the positioning modules. The limiting baffle is located on the outer side of the spacing adjustment plate. The hydraulic cylinder is located at the bottom of the frame, and its drive end is connected to the spacing adjustment plate. Each positioning module includes two sets of clamping seats arranged in parallel. The advantages of this invention are: the multi-module sliding linkage structure allows for synchronous adjustment of the station spacing, avoiding processing interference; the multi-station layout effectively improves the processing efficiency of ship parts; the adjustable clamping seats can flexibly switch clamping modes to adapt to different shaped parts, exhibiting good versatility; the heavy-duty reinforced overall structure, combined with a cross-shaped radial limiting structure, resists deformation and prevents movement, allowing for long-term adaptation to high-load continuous processing conditions of ship parts.

Description

Technical Field

[0001] This invention mainly relates to the field of ship parts manufacturing technology, specifically to a multi-station linkage positioning device for ship parts. Background Technology

[0002] Ship components are generally large in size and have a heavy load. The weight of a single conventional ship structural component can reach hundreds of kilograms to several tons. In processing operations such as cutting, grinding and assembly, traditional single-positioning tooling generally has problems such as insufficient structural rigidity and limited load-bearing capacity, and cannot be adapted to long-term use under heavy load conditions.

[0003] Existing positioning equipment mostly adopts a lightweight frame structure, which is prone to problems such as frame deformation, guide rail wear, loosening of clamping structure, and radial displacement of support components under heavy load and pressure. It can only complete the fixing of single-piece, single-station lightweight parts. The continuous processing of heavy ship parts requires repeated hoisting and transportation, which is labor-intensive, has low processing efficiency, and is prone to collision damage during transportation.

[0004] Currently, conventional positioning fixtures used in ship parts processing generally have a crude structural design and low mechanical precision. Under the continuous pressure of heavy objects and processing vibrations, they are prone to problems such as loosening of connecting parts and increased clearance, resulting in poor long-term stability. Most traditional positioning fixtures have limited functions and insufficient overall structural adaptability, making it difficult to accommodate the clamping operations of ship parts of different sizes and shapes. Their applicability is limited, and the overall force layout of conventional positioning equipment is unreasonable, with uneven load distribution. Long-term heavy-load operation can easily cause local deformation, further shortening the service life of the equipment. They cannot adapt to the continuous and high-intensity processing and production conditions of the shipbuilding industry. Summary of the Invention

[0005] 1. The technical problem that the invention aims to solve: This invention provides a multi-station linkage positioning device for ship parts, which solves the problems of weak load-bearing capacity, easy deformation under heavy load, lack of radial limiting structure, single station, fixed clamping form, and inability to adjust the spacing synchronously in existing equipment. It achieves a comprehensive technical effect of stable load bearing, radial anti-offset positioning, synchronous positioning of multiple stations, compatibility with various shapes of parts, and linkage adjustment of station spacing, and is suitable for long-term processing conditions of heavy ship parts.

[0006] 2. Technical Solution: To achieve the above objectives, the technical solution provided by this invention is as follows: a multi-station linkage positioning device for ship parts, comprising a frame, a limiting base fixedly installed at the upper end of the frame, and several sets of equidistantly arranged positioning modules slidably assembled inside the limiting base along its length; symmetrical vertically arranged spacing adjustment plates are provided on the left and right sides of the limiting base, and the spacing adjustment plates are respectively fixedly connected to the side walls of the corresponding positioning modules through multiple sets of guide shafts of different specifications, and a limiting baffle is fixedly installed on the outer side of the spacing adjustment plate; a hydraulic cylinder is symmetrically fixedly installed at the bottom of the frame, and the extension and retraction drive end of the hydraulic cylinder is vertically upward and rigidly connected to the bottom of the spacing adjustment plate; the positioning module is integrally embedded in the sliding cavity inside the limiting base, and a single positioning module includes two sets of clamping seats arranged symmetrically side by side, the clamping seats including clamping rollers, support seats, adjusting swing arms, hinge seats, racks, a second hydraulic cylinder, a rotary cylinder, a gear shaft, an upper housing, a lower housing, a first transverse positioning plate, and a second transverse positioning plate; a radial positioning plate is also inserted inside the positioning module. The lower housing has a sliding groove on its inner side; the upper housing and the lower housing are fastened together to form a closed installation cavity; the first horizontal positioning plate is horizontally fixed inside the upper housing, and the second horizontal positioning plate is horizontally fixed inside the lower housing; the bottom of the support seat is slidably embedded in the guide groove inside the lower housing; the top of the support seat is hinged to the clamping roller; the two ends of the adjusting swing arm are respectively hinged to the side wall of the support seat and the upper part of the hinge seat; the lower end of the hinge seat is integrally connected to a rack; the rotary cylinder is fixed to the surface of the second horizontal positioning plate; the output shaft of the rotary cylinder is coaxially connected to the gear shaft; the gear shaft and the rack mesh with each other to form a gear and rack transmission pair; the second hydraulic cylinder is fixedly installed inside the cavity of the lower housing; the telescopic end of the second hydraulic cylinder is fixedly connected to the bottom surface of the hinge seat; through the gear and rack transmission, the swing arm hinge linkage structure, and the double radial link limiting structure, the multi-angle deflection adjustment of the clamping roller and the heavy-load radial anti-offset positioning are realized.

[0007] Furthermore, the inner side of the limiting base is provided with a long sliding groove, and the bottom of the positioning module is fitted with the long sliding groove of the limiting base through the sliding base, so that multiple sets of the positioning modules can slide horizontally along the length direction of the limiting base.

[0008] Furthermore, a spacing guide groove is provided on the inner side of the spacing adjustment plate. One end of the guide shaft passes through the spacing guide groove and is locked and fixed to the spacing adjustment plate. The other end of the guide shaft is fixedly connected to the side wall of the positioning module, so as to realize the synchronous linkage between the spacing adjustment plate and the positioning module.

[0009] Furthermore, the limiting baffle is an integral bending limiting structure, and the upper and lower ends of the limiting baffle are provided with limiting protrusions to limit the vertical lifting stroke of the spacing adjustment plate and prevent overtravel.

[0010] Furthermore, a limit adjustment hole is provided in the middle of the adjusting swing arm, and the hinge end of the hinge seat passes through the limit adjustment hole to realize sliding limit assembly, which is adapted to the stroke compensation when the angle of the clamping roller is adjusted.

[0011] Furthermore, the lower housing has an independent mounting compartment, and the hydraulic cylinder, the gear shaft, and the rack are all located inside the independent mounting compartment. A sealing gasket is provided on the mating surface between the upper housing and the lower housing.

[0012] Furthermore, the first horizontal positioning plate and the second horizontal positioning plate are arranged parallel to each other, forming a central installation space between them, which provides an area for the adjustment arm and the hinge seat to move and avoid each other.

[0013] Furthermore, the outer wall of the clamping roller is covered with a wear-resistant and anti-slip rubber layer, the clamping roller has a cylindrical structure, and the two sets of clamping rollers are arranged opposite each other to form a workpiece clamping and positioning area.

[0014] Furthermore, the first radial positioning link vertically penetrates the slide groove and the bottom of the support seat, used to axially limit the radial runout and vertical offset of the support seat; the second radial positioning link laterally penetrates the connecting end of the second hydraulic cylinder and its two ends are connected to the inner wall of the lower housing. The first and second radial positioning links are arranged perpendicularly and staggered to form a cross-shaped radial limiting constraint structure, resisting the lateral thrust and radial shear force under heavy load conditions, and preventing the clamping seat from shifting position; both the first and second radial positioning links are made of high-strength tempered steel.

[0015] Furthermore, the two sets of clamping seats are arranged in a mirror-symmetrical manner, and through the coordinated drive of the rotary cylinder and the hydraulic cylinder, two stable positioning forms can be achieved, namely, the clamping rollers are arranged in a V-shape or in parallel.

[0016] 3. Beneficial effects: Compared with the prior art, the technical solution provided by this invention has the following advantages: This device adopts a multi-module sliding layout and relies on linkage adjustment components to achieve synchronous displacement of all positioning modules. It can quickly and uniformly adjust the station spacing, effectively avoid interference in the processing of multiple workpieces, and the multi-station integrated design can complete the positioning operations of multiple sets of ship parts at the same time, reduce the transfer process of heavy components, significantly improve the overall processing efficiency, and adapt to the needs of mass production.

[0017] This device features an adjustable clamping base structure. With the help of gear and rack transmission and the linkage of the swing arm, the arrangement of the clamping rollers can be flexibly switched. It is compatible with the clamping of ship parts with different contours such as cylindrical and rectangular shapes. The structure can be adjusted flexibly and smoothly without the need to change tooling parts, which effectively broadens the application range of the equipment and improves the universality and adaptability of the device.

[0018] This device features an optimized overall structure designed for heavy-duty operations on ship parts. Key load-bearing components are stronger, and the cross-shaped radial limiting structure effectively resists heavy load pressure, lateral shear force, and processing vibration. It exhibits excellent overall resistance to offset and deformation, and maintains stable positioning accuracy under long-term operation, meeting the requirements of high-load and continuous ship processing conditions.

[0019] It should be noted that the structures not described in this invention are not related to the design points and improvement directions of this invention, and are the same as or can be implemented using existing technologies, so they will not be elaborated here. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the overall structure of the present invention from another angle; Figure 3 This is a partial structural diagram of the present invention; Figure 4 This is a schematic diagram of the V-groove positioning state structure of the positioning module of the present invention; Figure 5 This is a schematic diagram of the rectangular slot positioning state structure of the positioning module of the present invention; Figure 6 This is a schematic diagram of the front cross-sectional structure of the positioning module of the present invention; Figure 7 This is a side cross-sectional view of the positioning module of the present invention; Figure 8 This is a partial structural diagram of the positioning module of the present invention; Figure 9 This is a partial structural diagram of another angle positioning module of the present invention.

[0021] Figure label: 1. Frame; 2. Limiting base; 3. Positioning module; 4. Spacing adjustment plate; 5. Limiting baffle; 6. Hydraulic cylinder one; 7. Clamping seat; 8. Clamping roller; 9. Support seat; 10. Adjusting swing arm; 101. Limiting adjustment hole; 11. Hinge seat; 12. Rack; 13. Hydraulic cylinder two; 14. Rotary cylinder; 15. Gear shaft; 16. Upper housing; 17. Lower housing; 18. Lateral positioning plate one; 19. Lateral positioning plate two; 20. Guide shaft; 21. Spacing guide groove; 22. Radial positioning link one; 23. Radial positioning link two; 24. Slide groove. Detailed Implementation

[0022] To facilitate understanding of the present invention, a more complete description of the invention will be given below with reference to the accompanying drawings, which illustrate several embodiments of the invention. However, the invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the invention will be more thorough and complete.

[0023] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "page," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] In this invention, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," "provided with," and "located in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0026] See attached document Figure 1-9This is a multi-station linkage positioning device for ship parts, which adopts a graded heavy-duty bearing design. It includes a frame 1, a limiting base 2, positioning modules 3, a spacing adjustment plate 4, a limiting baffle 5, and a hydraulic cylinder 6. The limiting base 2 is located on the frame 1, and multiple positioning modules 3 are slidably installed inside the limiting base 2. The spacing adjustment plate 4 is located on both sides of the limiting base 2 and is connected to the positioning modules 3. The limiting baffle 5 is located on the outside of the spacing adjustment plate 4. The hydraulic cylinder 6 is located at the bottom of the frame 1, and its drive end is connected to the spacing adjustment plate 4. The positioning module 3 includes two sets of clamping seats 7 arranged in parallel. The clamping seat 7 includes a clamping roller 8, a support seat 9, an adjusting swing arm 10, a hinge seat 11, a rack 12, a second hydraulic cylinder 13, a rotary cylinder 14, a gear shaft 15, an upper shell 16, a lower shell 17, a first transverse positioning plate 18, and a second transverse positioning plate 19.

[0027] The frame 1 is made of thickened H-beams and channel steel welded together, forming a rectangular frame structure. All welded joints are reinforced and strengthened, which can withstand the static pressure load of ton-class ship parts and has high foundation stability. The upper end of the frame 1 is fixedly installed with a limit base 2 by high-strength bolts. The limit base 2 is an integrally formed rectangular frame structure with a through-slide groove along the length direction inside. The groove wall is treated with wear-resistant quenching and serves as the horizontal sliding track of the positioning module 3.

[0028] On the left and right sides of the limiting base 2, two parallel spacing adjustment plates 4 are symmetrically and vertically arranged. The spacing adjustment plates 4 are made of a single piece of high-strength steel plate, with strong overall structure and excellent bending resistance. On the outer side of the spacing adjustment plates 4, that is, the side away from the limiting base 2, a limiting baffle 5 is fixedly installed. The limiting baffle 5 is an integrally bent U-shaped limiting structure. Its side plate is attached to the outer wall of the spacing adjustment plate 4, and the horizontal convex edges at the upper and lower ends are located above and below the spacing adjustment plate 4, respectively, forming a vertical travel limit to restrict the lifting and lowering stroke of the spacing adjustment plate 4 and prevent overtravel.

[0029] On the bottom crossbeam of the frame 1, multiple heavy-duty hydraulic cylinders 6 are symmetrically arranged along the length direction. The cylinder body of the hydraulic cylinder 6 is fixedly installed at the bottom of the frame 1, and the piston rod extends vertically upward. The top of the piston rod is rigidly connected to the bottom of the spacing adjustment plate 4 through a flange. When the piston rod of the hydraulic cylinder 6 extends or retracts, it can drive the spacing adjustment plate 4 to move up and down in the vertical direction, providing power for multi-station spacing adjustment.

[0030] On the inner side of the spacing adjustment plate 4, i.e. the side facing the limiting base 2, multiple spacing guide grooves 21 of different specifications are opened vertically. The spacing guide grooves 21 are waist-shaped long grooves extending vertically. One end of multiple sets of guide shafts 20 passes through the spacing guide grooves 21 from the outside of the spacing adjustment plate 4 and is rigidly locked to the spacing adjustment plate 4 by locking nuts. The other end of the guide shafts 20 extends horizontally into the internal cavity of the limiting base 2 and is fixedly connected to the side wall of the corresponding side positioning module 3 by flange bolts. Through the cooperation of the guide shafts 20 and the spacing guide grooves 21, when the hydraulic cylinder 6 drives the spacing adjustment plate 4 to rise and fall, the guide shafts 20 can slide along the groove wall of the spacing guide grooves 21, and at the same time drive all positioning modules 3 to move horizontally synchronously along the long sliding groove of the limiting base 2, so as to realize the synchronous linkage adjustment of the spacing of multiple work positions, ensure the consistency of the spacing adjustment of each positioning module 3, and avoid problems such as jamming, offset or uneven force during the adjustment process.

[0031] The single positioning module 3 is an integrated heavy-duty positioning unit, which is integrally fitted into the long sliding groove of the limiting base 2. The bottom is fitted with the long sliding groove of the limiting base 2 through the sliding base, and can slide horizontally along the length of the limiting base 2. The main body of the positioning module 3 consists of an upper shell 16 and a lower shell 17 that are interlocked. Both the upper shell 16 and the lower shell 17 are made of thickened high-strength steel plate and are stamped. A rubber sealing gasket is set between the mating surfaces to form a closed installation cavity, which can prevent workshop dust, metal shavings or cutting fluid from entering, and play a protective role for the internal transmission and drive components. At the same time, it improves the overall structural strength and is suitable for heavy-duty working conditions.

[0032] Inside the upper housing 16, a horizontally fixed transverse positioning plate 18 is installed, and inside the lower housing 17, a horizontally fixed transverse positioning plate 19 is installed. Both the first transverse positioning plate 18 and the second transverse positioning plate 19 are made of thickened load-bearing steel plates. They are arranged parallel to each other, forming a central installation space between them. This provides sufficient clearance for the movement of movable parts such as the adjusting swing arm 10 and the hinge seat 11, thus avoiding interference during the movement of the parts.

[0033] Inside the positioning module 3, two sets of clamping seats 7 are mirror-symmetrically arranged along the length direction. The two sets of clamping seats 7 together constitute the workpiece clamping and positioning unit, and the positioning mode can be switched according to the shape of the workpiece.

[0034] Each clamping seat 7 includes a clamping roller 8, a support seat 9, an adjusting swing arm 10, a hinge seat 11, a rack 12, a hydraulic cylinder 13, a rotary cylinder 14, and a gear shaft 15. The connection relationship of each component is as follows: Support base and clamping roller: The support base 9 is a one-piece cast steel load-bearing component with high overall structural strength, capable of withstanding the heavy load pressure of ship parts; the bottom of the support base 9 is slidably embedded in the slide groove 24 inside the lower shell 17. The slide groove 24 is a one-piece guide groove inside the lower shell 17, and the groove wall is treated with wear resistance to ensure the smooth sliding of the support base 9. The top of the support base 9 is hinged to the clamping roller 8 through a pin. The clamping roller 8 is a cylindrical rotating structure with a wear-resistant and anti-slip rubber layer on the outer wall, which can increase the friction between the roller and the workpiece and prevent the workpiece from slipping under heavy load; the clamping rollers 8 of the two sets of clamping bases 7 are arranged opposite each other to form a workpiece clamping and positioning area for supporting and clamping the ship parts to be processed; Adjustable swing arm and hinge seat: The side wall of the support seat 9 is hinged to the adjustable swing arm 10 by a pin. The other end of the adjustable swing arm 10 is hinged to the upper part of the hinge seat 11. The middle part of the adjustable swing arm 10 has a waist-shaped limit adjustment hole 101. The hinge pin on the hinge seat 11 passes through the limit adjustment hole 101 to realize sliding limit assembly. When the adjustable swing arm 10 swings, the hinge pin can slide along the limit adjustment hole 101 to adapt to the stroke compensation during the angle adjustment process of the clamping roller 8, avoid mechanical motion interference, and limit the swing range of the adjustable swing arm 10 to prevent overtravel.

[0035] Gear and rack transmission pair: The lower end of the hinge seat 11 is integrally connected to the rack 12, and the tooth surface of the rack 12 is set facing the gear shaft 15. Inside the lower housing 17, a rotary cylinder 14 is fixedly installed on the surface of the transverse positioning plate 19. The output shaft end of the rotary cylinder 14 is rigidly connected to the gear shaft 15 on the same axis. The outer tooth surface of the gear shaft 15 meshes with the rack 12 to form a gear and rack transmission pair. When the rotary cylinder 14 drives the gear shaft 15 to rotate, the gear shaft 15 can drive the rack 12 to move linearly in the horizontal direction, thereby driving the hinge seat 11 to move horizontally, driving the adjusting swing arm 10 to swing, and realizing the angle deflection adjustment of the support seat 9 and the clamping roller 8.

[0036] Auxiliary drive and protection structure: The internal chamber of the lower housing 17 is divided by a partition to form an independent installation compartment. The transmission components such as hydraulic cylinder 13, gear shaft 15, and rack 12 are all housed inside this independent installation compartment, which can avoid motion interference between the components and facilitate the assembly and maintenance of the components. Hydraulic cylinder 13 is a heavy-duty hydraulic cylinder. The cylinder body is fixedly installed in the independent installation compartment, and the piston rod extends vertically upward. The top of the piston rod is fixedly connected to the bottom surface of the hinge seat 11, which can provide an upward pushing force to the hinge seat 11. It works in conjunction with the gear and rack transmission pair to assist in driving the movement of the hinge seat 11. At the same time, after adjustment, hydraulic cylinder 13 can lock the hinge seat 11 to prevent the rack 12 from moving under heavy load conditions and improve the positioning stability of the clamping seat 7.

[0037] To improve positioning stability under heavy load conditions, the positioning module 3 is equipped with a cross-shaped radial limiting constraint structure, including radial positioning link 1 22 and radial positioning link 23: The radial positioning link 22 is arranged vertically, passing through the slide groove 24 and the bottom of the support seat 9. Both ends are fixedly connected to the bottom inner wall of the lower housing 17 by locking nuts. It can form an axial constraint on the support seat 9, restrict the radial runout and vertical offset of the support seat 9, and prevent the support seat 9 from tilting or shifting under the heavy pressure of the workpiece. The second radial positioning link 23 is arranged horizontally and passes through the cylinder end of the second hydraulic cylinder 13. Both ends are fixedly connected to the inner walls of both sides of the lower housing 17. It is arranged perpendicularly and staggered with the first radial positioning link 22 to form a cross-shaped radial limiting structure, which can effectively resist the lateral thrust and radial shear force under heavy load conditions and prevent the clamping seat 7 from undergoing overall lateral displacement. Both radial positioning link 1 22 and radial positioning link 2 23 are made of high-strength quenched and tempered steel, which has excellent tensile, shear and fatigue resistance, and can withstand the complex stress during the heavy-load processing of ship parts, ensuring the stability of positioning accuracy.

[0038] Two sets of clamping seats 7 are arranged symmetrically in mirror image along the central axis of the positioning module 3. Through the coordinated drive of the rotary cylinder 14 and the hydraulic cylinder 13, two stable workpiece positioning modes can be achieved: V-shaped positioning configuration: When the rotary cylinder 14 drives the gear shaft 15 to rotate in the forward direction, it drives the rack 12 to move inward. With the assistance of the hydraulic cylinder 13, the adjusting arm 10 drives the support seat 9 and the clamping roller 8 to deflect inward. The clamping rollers 8 of the two sets of clamping seats 7 are arranged in a V-shape, which is suitable for the outer circle positioning of cylindrical ship parts.

[0039] Parallel positioning configuration: When the rotary cylinder 14 drives the gear shaft 15 to rotate in the opposite direction, it drives the rack 12 to move outward. The adjusting arm 10 drives the support seat 9 and the clamping roller 8 to open outward. The clamping rollers 8 of the two sets of clamping seats 7 are arranged in parallel, which is suitable for the planar positioning of rectangular ship parts. It can adapt to workpieces of different shapes without changing the tooling fixtures, and has strong versatility.

[0040] The specific operating procedure for this device is as follows: According to the actual outline of the ship parts to be processed, the rotary cylinder 14 and the hydraulic cylinder 13 are activated accordingly. The deflection angle of the clamping roller 8 is adjusted through the linkage of the internal transmission structure, thereby adjusting the overall arrangement of the two sets of clamping rollers 8 so that the clamping structure can be adapted to ship parts with different outlines, such as cylindrical or rectangular shapes. Based on the overall dimensions and processing requirements of the ship parts, hydraulic cylinder 6 is activated. The extension and retraction power of hydraulic cylinder 6 drives the spacing adjustment plate 4 to move up and down. Relying on the sliding cooperation between the guide shaft 20 and the spacing guide groove 21, the transmission is simultaneously driven to drive all the positioning modules 3 inside the limit base 2 to slide smoothly laterally, and uniformly adjust the spacing between each station to prevent the parts from colliding and interfering during the synchronous processing of multiple stations. After adjusting the clamping shape and station spacing, the ship parts to be processed are placed stably between the clamping rollers 8 arranged opposite to each other on the two sets of clamping seats 7, thus completing the initial placement of the workpiece. The wear-resistant and anti-slip rubber layer covering the outer wall of the clamping roller 8 increases the contact friction resistance. At the same time, the cross-shaped radial limiting structure formed by the radial positioning link 1 22 and the radial positioning link 23 effectively resists heavy load pressure and processing vibration, limits structural displacement and position movement, and ensures the clamping stability of ship parts. After positioning is completed, subsequent continuous processing operations can be carried out.

[0041] The above-described embodiments are merely illustrative of certain implementations of the present invention, and are described in a relatively specific and detailed manner. However, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements are all within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A multi-station linkage positioning device for ship parts, characterized in that, The frame (1) includes a frame (1), on which a limiting base (2) is fixedly installed. Several sets of equidistant positioning modules (3) are slidably assembled inside the limiting base (2) along the length direction. Spacing adjustment plates (4) are symmetrically and vertically arranged on the left and right sides of the limiting base (2). The spacing adjustment plates (4) are fixedly connected to the side walls of the corresponding positioning modules (3) through multiple sets of guide shafts (20) of different specifications. A limiting baffle (5) is fixedly installed on the outside of the spacing adjustment plates (4). A hydraulic cylinder (6) is symmetrically fixed at the bottom of the frame (1). The extension and retraction drive end of the hydraulic cylinder (6) is vertically upward and connected to the spacing adjustment plate. (4) Bottom rigid connection; the positioning module (3) is integrally fitted into the sliding cavity inside the limiting base (2). Each positioning module (3) includes two sets of clamping seats (7) arranged symmetrically side by side. The clamping seat (7) includes clamping roller (8), support seat (9), adjusting swing arm (10), hinge seat (11), rack (12), hydraulic cylinder two (13), rotary cylinder (14), gear shaft (15), upper housing (16), lower housing (17), transverse positioning plate one (18) and transverse positioning plate two (19); the positioning module (3) is also provided with radial positioning link one (22) and radial positioning link two (2). 3) A sliding groove (24) is provided on the inner side of the lower housing (17); the upper housing (16) and the lower housing (17) are fastened together to form a closed installation cavity; the first transverse positioning plate (18) is horizontally fixed inside the upper housing (16), and the second transverse positioning plate (19) is horizontally fixed inside the lower housing (17); the bottom of the support base (9) is slidably embedded in the guide groove inside the lower housing (17); the top of the support base (9) is hinged to the clamping roller (8); the two ends of the adjusting swing arm (10) are respectively hinged to the side wall of the support base (9) and the upper part of the hinge seat (11); the hinge seat (11) The lower end is integrally connected with a rack (12), the rotary cylinder (14) is fixed on the surface of the transverse positioning plate (19), the output shaft end of the rotary cylinder (14) is coaxially connected with the gear shaft (15), the gear shaft (15) and the rack (12) mesh with each other to form a gear and rack transmission pair, the hydraulic cylinder (13) is fixedly installed inside the cavity of the lower housing (17), the extension end of the hydraulic cylinder (13) is fixedly connected to the bottom surface of the hinge seat (11), and through the gear and rack transmission combined with the swing arm hinge linkage structure and the double radial connecting rod limiting structure, the multi-angle deflection adjustment and heavy-load radial anti-offset positioning of the clamping roller (8) are realized.

2. The multi-station linkage positioning device for ship parts according to claim 1, characterized in that: The inner side of the limiting base (2) is provided with a long sliding groove. The bottom of the positioning module (3) is fitted with the long sliding groove of the limiting base (2) through the sliding base, so that multiple sets of the positioning modules (3) slide horizontally along the length direction of the limiting base (2).

3. The multi-station linkage positioning device for ship parts according to claim 1, characterized in that: The spacing adjustment plate (4) has a spacing guide groove (21) on its inner side. One end of the guide shaft (20) passes through the spacing guide groove (21) and is locked and fixed to the spacing adjustment plate (4). The other end of the guide shaft (20) is fixedly connected to the side wall of the positioning module (3) to realize the synchronous linkage between the spacing adjustment plate (4) and the positioning module (3).

4. The multi-station linkage positioning device for ship parts according to claim 1, characterized in that: The limiting baffle (5) is an integral bending limiting structure. The upper and lower ends of the limiting baffle (5) are provided with limiting protrusions to limit the vertical lifting stroke of the spacing adjustment plate (4) and prevent overtravel.

5. The multi-station linkage positioning device for ship parts according to claim 1, characterized in that: The adjusting arm (10) has a limit adjustment hole (101) in the middle. The hinge end of the hinge seat (11) passes through the limit adjustment hole (101) to realize sliding limit assembly, which is adapted to the stroke compensation when the angle of the clamping roller (8) is adjusted.

6. The multi-station linkage positioning device for ship parts according to claim 1, characterized in that: The lower housing (17) has an independent installation compartment inside, and the hydraulic cylinder (13), the gear shaft (15), and the rack (12) are all located inside the independent installation compartment. The mating surface between the upper housing (16) and the lower housing (17) is provided with a sealing gasket.

7. The multi-station linkage positioning device for ship parts according to claim 1, characterized in that: The first horizontal positioning plate (18) and the second horizontal positioning plate (19) are arranged parallel to each other, forming a central installation space between them, which provides an activity avoidance area for the adjusting swing arm (10) and the hinge seat (11).

8. The multi-station linkage positioning device for ship parts according to claim 1, characterized in that: The outer wall of the clamping roller (8) is covered with a wear-resistant and anti-slip rubber layer. The clamping roller (8) is a cylindrical structure. The two sets of clamping rollers (8) are arranged opposite each other to form a workpiece clamping and positioning area.

9. The multi-station linkage positioning device for ship parts according to claim 1, characterized in that: The first radial positioning link (22) extends vertically through the bottom of the slide groove (24) and the support seat (9) to axially restrict the radial runout and vertical offset of the support seat (9); the second radial positioning link (23) extends horizontally through the connecting end of the second hydraulic cylinder (13) and its two ends are connected to the inner wall of the lower housing (17). The first radial positioning link (22) and the second radial positioning link (23) are arranged vertically and alternately to form a cross-shaped radial limit constraint structure to resist the lateral thrust and radial shear force under heavy load conditions and prevent the clamping seat (7) from shifting position; both the first radial positioning link (22) and the second radial positioning link (23) are made of high-strength tempered steel.

10. The multi-station linkage positioning device for ship parts according to claim 1, characterized in that: The two sets of clamping seats (7) are arranged in a mirror symmetrical manner. Driven by the rotary cylinder (14) and the hydraulic cylinder (13), the clamping rollers (8) can be arranged in two stable positioning forms: V-shaped arrangement or parallel arrangement.

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