Auxiliary positioning device for ship bottom longitudinal welding

Abstract

The utility model discloses an auxiliary positioning device for ship bottom longitudinal welding, which is characterized in that the auxiliary positioning device comprises a fixing clamp, a telescopic swing rod is rotatably connected onto the fixing clamp through a supporting seat, a rotary positioner is arranged at a connecting shaft of the telescopic swing rod and the supporting seat, and the telescopic swing rod is rotatably connected with the rotary positioner through the supporting seat. The telescopic swing rod is composed of a first sleeve and a first connecting rod which are movably connected in a sleeved mode, a plurality of positioning holes are distributed in the first connecting rod at equal intervals, positioning pins matched with the positioning holes are connected to the first sleeve, the bottom end of the first sleeve is rotationally connected with the supporting base, and the bottom end of the first sleeve is rotationally connected with the supporting base. The end of the first connecting rod is rotationally connected with the U-shaped frame through a rotating shaft, a rotating positioner is arranged at the joint of the first connecting rod and the U-shaped frame, the U-shaped frame comprises two parallel steel plate clamp supporting rods, and a plurality of steel plate clamp mechanisms are arranged on the steel plate clamp supporting rods.

Description

TECHNICAL FIELD

[0001] The utility model relates to shipbuilding field especially a kind of auxiliary positioning device for ship bottom longitudinal welding. BACKGROUND

[0002] The main role of ship bottom longitudinal is to bear the total longitudinal strength of ship, that is, to resist the longitudinal bending force caused by waves, goods and the like during navigation. It is generally made of angle steel, unequal angle steel, flat bulb steel or T-shaped steel. In longitudinal frame type single bottom structure, the ship bottom longitudinal is generally kept continuous along the ship length direction, and when meeting with transverse components such as ribbed plate, holes are opened in the ribbed plate to let the ship bottom longitudinal pass through. When the transverse component requires water tightness, a water-tight treatment is performed by welding a patch on both sides of the opening. The size of the ship bottom longitudinal is generally small, but the number is large, and they are densely arranged on the ship bottom plate to form a strong longitudinal support system.

[0003] Due to the small structure, different shapes and large number of ship bottom longitudes, there are many difficulties in the welding process of the longitudinal and the ship structure, and the anti-inclination in the longitudinal welding process is particularly important. Because once the longitudinal is inclined during welding, it will affect the overall longitudinal support system during ship operation, and cause accidents such as ship overturning. Therefore, the welding quality and precision of the ship bottom longitudinal are very important in the field of shipbuilding.

[0004] During the welding of the longitudinal, the longitudinal will produce size deviation due to welding heat. The current fixing form is limited to one-time tooling inclined support. According to the calculation of ten meters of each longitudinal, 5-6 inclined supports are needed, and the installation and welding consume 1 man-hour. Taking 158000T crude oil tanker 246 segments as an example, there are only thirteen longitudes on the inclined plate, and a total of 65-78 inclined supports and 13 man-hours are needed, and the material of the inclined support cannot be recovered due to process transfer, which consumes a large amount of man-hours and materials.

[0005] Therefore, a method or device is needed to solve the above problems. SUMMARY

[0006] The utility model discloses in order to solve the above insufficient of prior art, propose a kind of simple structure, design is ingenious, layout is reasonable, can quickly, conveniently and accurately realize the positioning of ship bottom longitudinal, to guarantee the auxiliary positioning device of welding quality and welding precision.

[0007] The technical solution of the utility model is: a kind of auxiliary positioning device for ship bottom longitudinal welding, characterized by: the auxiliary positioning device includes fixed clamp 1, the telescopic swing bar 3 is rotatably connected on the fixed clamp 1 by support seat 2, and rotary positioner 4 is arranged at the connecting shaft of telescopic swing bar 3 and support seat 2,

[0008] The telescopic swing rod 3 is composed of a first sleeve 5 and a first connecting rod 6 which are movably sleeved with each other, a plurality of positioning holes 7 are distributed on the first connecting rod 6 at equal intervals, a positioning pin 8 matched with the positioning holes 7 is connected on the first sleeve 5, the bottom end of the first sleeve 5 is rotationally connected with the supporting base 2,

[0009] The end of the first connecting rod 6 is rotationally connected with a U-shaped frame through a rotating shaft, and a rotary positioner 4 is also arranged at the connecting position of the two, the U-shaped frame comprises two steel plate clamping support rods which are parallel to each other, and a plurality of steel plate clamping mechanisms are arranged on the steel plate clamping support rods,

[0010] The steel plate clamping mechanism is composed of a pair of steel plate clamps 9 which are arranged on the two steel plate clamping support rods respectively, the steel plate clamp comprises a steel plate clamp seat 10 which is directly connected with the steel plate clamping support rod, an upper clamping jaw 11 is rotationally connected on the two sides of the steel plate clamp seat 10 respectively, the end of the upper clamping jaw 11 is hingedly connected with the top end of a lower clamping jaw 12, the free end of the lower clamping jaw 12 is provided with a clamping part 13, the two lower clamping jaws 12 are connected through a connecting piece 14, and the connecting piece 14 is rotationally connected with the two lower clamping jaws 12,

[0011] The pair of two steel plate clamps 9 are connected with each other through a connecting plate 15, the end of the connecting plate 15 is fixedly connected with the steel plate clamp seat 10, a driving screw 16 is threadedly connected in the middle part of the connecting plate 15, the bottom end of the driving screw 16 is rotationally connected with the middle part of a driving rod 17, and the two ends of the driving rod 17 are fixedly connected with the connecting pieces 14 in the two steel plate clamps 9 respectively, and a backup nut 21 is further threadedly connected on the top of the driving screw 16.

[0012] The steel plate clamping support rod is composed of a second sleeve 18 and a second connecting rod 19 which are movably sleeved with each other, and the pair of steel plate clamps 9 are arranged on the first sleeve 18 and the second connecting rod 19.

[0013] Compared with the prior art, the utility model has the advantages of:

[0014] The auxiliary positioning device for ship bottom longitudinal beam welding has the advantages of simple structure, ingenious design, reasonable layout, flexible and convenient positioning in the ship body, clamping and positioning of multiple longitudinal beams at a time, improvement of work efficiency, simple manufacturing process, low manufacturing cost, multiple advantages, wide market prospect, and suitability for popularization and application in the field. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 is the front view of the embodiment of the utility model.

[0016] Fig. 2 is the top view of the embodiment of the utility model.

[0017] Fig. 3 is the front view of the steel plate clamping mechanism in the embodiment of the utility model.

[0018] Fig. 4 is the side view of the steel plate clamping mechanism in the embodiment of the utility model. DETAILED DESCRIPTION

[0019] The specific implementation of the utility model will be described below with reference to the drawings. Figs. 1 to 4 As shown in the figure: an auxiliary positioning device for ship bottom longitudinal beam welding, it includes fixed clamp 1, the fixed clamp 1 is rotatably connected with telescopic swing lever 3 through support seat 2, and rotary positioner 4 is arranged at the connecting shaft of telescopic swing lever 3 and support seat 2,

[0020] Telescopic swing lever 3 is composed of first sleeve pipe 5 and first connecting rod 6 two parts that are movably sleeved, a plurality of positioning holes 7 are distributed on first connecting rod 6 at equal intervals, positioning pin 8 matched with positioning hole 7 is connected on first sleeve pipe 5, and the bottom end of first sleeve pipe 5 is rotatably connected with support seat 2,

[0021] The end of first connecting rod 6 is rotatably connected with U-shaped frame through a rotating shaft, and rotary positioner 4 is also arranged at the connecting place of the two, the U-shaped frame includes two parallel steel plate clamp support rods, and a plurality of steel plate clamping mechanisms are arranged on the steel plate clamp support rods,

[0022] The steel plate clamping mechanism is composed of a pair of steel plate clamps 9, which are arranged on two steel plate clamping support rods respectively, and the steel plate clamps comprise a steel plate clamp seat 10 connected with the steel plate clamping support rod directly, an upper clamping jaw 11 rotatably connected with the two sides of the steel plate clamp seat 10 respectively, the end of the upper clamping jaw 11 hinged with the top end of a lower clamping jaw 12, the free end of the lower clamping jaw 12 provided with a clamping part 13, the two lower clamping jaws 12 connected through a connecting piece 14, and the connecting piece 14 rotatably connected with the two lower clamping jaws 12,

[0023] The pair of two steel plate clamps 9 are connected with each other through a connecting plate 15, the end of the connecting plate 15 fixedly connected with the steel plate clamp seat 10, the middle part of the connecting plate 15 screw-connected with a driving screw 16, the bottom end of the driving screw 16 rotatably connected with the middle part of a driving rod 17, and the two ends of the driving rod 17 fixedly connected with the connecting pieces 14 in the two steel plate clamps 9 respectively, and the top part of the driving screw 16 screw-connected with a backup nut 21.

[0024] The steel plate clamping support rod is composed of a second sleeve 18 and a second connecting rod 19 movably sleeved with each other, and the pair of steel plate clamps 9 are arranged on the first sleeve 18 and the second connecting rod 19.

[0025] The working process of the auxiliary positioning device for ship bottom longitudinal beam welding is as follows: when multiple longitudinal beams 20 need to be welded to the ship body, the positioning device is first fixed on the ship body, specifically, the fixing clamp 1 is clamped on the ship body, then the total length of the telescopic swing rod 3 is adjusted according to the height of the longitudinal beam 20, and after being adjusted to the appropriate length, the first sleeve 5 and the second connecting rod 6 are fixed by using the positioning pin 8, since the telescopic swing rod 3 can swing, the telescopic swing rod 3 can make a avoiding action in space, so that the device can be normally placed and worked in the ship body;

[0026] After the U-shaped frame is adjusted to the horizontal state, the multiple pairs of steel plate clamps 9 on the U-shaped frame clamp the longitudinal beams 20, and the longitudinal beams 20 clamped by the steel plate clamps 9 are perpendicular to the U-shaped frame, so that the perpendicularity between the longitudinal beams 20 and the installation surface of the ship body can be ensured by only ensuring that the U-shaped frame is in the horizontal state, and the position accuracy of the longitudinal beams 20 can be determined by adjusting the clamping position of the fixing clamp 1 and adjusting the relative position between the second sleeve 18 and the second connecting rod 19;

[0027] After the above adjustment is completed, the support seat 2 and the telescopic swing rod 3 are fixed by using the rotary positioner 4, and the first connecting rod 6 and the U-shaped frame are fixed, so that the positioning device can position multiple longitudinal beams 20 and welding operation can be performed;

[0028] When the steel plate clamps 9 need to be actuated to clamp the longitudinal rib 20, the operator can rotate the drive screw 16 in the steel plate clamp mechanism. Since the drive screw 16 is in threaded connection with the connecting plate 15, the drive screw 16 will rotate and move along its axial direction at the same time. In this way, the drive rod 17 connected to the bottom end of the drive screw 16 is driven to move downward relative to the connecting plate 15, thereby driving the two steel plate clamps 9 in the same steel plate clamp mechanism to actuate. The connecting piece 14 in the steel plate clamp 9 moves downward relative to the steel plate clamp seat 10, thereby driving the two lower clamping jaws 12 articulated therewith to swing. The clamping portions 13 at the bottom of the two lower clamping jaws 12 move towards each other to clamp the longitudinal rib 20 from both sides. After clamping, the clamping nut 21 is tightened to lock the drive screw 16.

[0029] The two steel plate clamps 9 in the same steel plate clamp mechanism will actuate synchronously under the above operation to clamp the upper edge of the longitudinal rib 20. Since the positioning device includes multiple steel plate clamp mechanisms, multiple longitudinal ribs 20 can be positioned simultaneously in one operation.

Claims

1. An auxiliary positioning device for welding of a longitudinal of a ship bottom, characterized in that: The auxiliary positioning device comprises a fixing clamp (1), a telescopic swing lever (3) is rotatably connected to the fixing clamp (1) through a support base (2), and a rotary positioner (4) is arranged at the connecting shaft of the telescopic swing lever (3) and the support base (2), The telescopic swing lever (3) is composed of a first sleeve (5) and a first connecting rod (6) which are movably sleeved with each other, a plurality of positioning holes (7) are equidistantly distributed on the first connecting rod (6), a positioning pin (8) matched with the positioning holes (7) is connected to the first sleeve (5), and the bottom end of the first sleeve (5) is rotatably connected to the support base (2), The end of the first connecting rod (6) is rotatably connected to a U-shaped frame through a rotating shaft, and a rotary positioner (4) is also arranged at the connecting position of the first connecting rod (6) and the U-shaped frame, the U-shaped frame comprises two parallel steel plate clamp supporting rods, and a plurality of steel plate clamp mechanisms are arranged on the steel plate clamp supporting rods, The steel plate clamp mechanism is composed of a pair of steel plate clamps (9), the steel plate clamps (9) are arranged on the two steel plate clamp supporting rods respectively, the steel plate clamp comprises a steel plate clamp seat (10) directly connected to the steel plate clamp supporting rod, an upper clamp jaw (11) is rotatably connected to the two sides of the steel plate clamp seat (10) respectively, the end of the upper clamp jaw (11) is hingedly connected to the top end of a lower clamp jaw (12), the free end of the lower clamp jaw (12) is provided with a clamping part (13), the two lower clamp jaws (12) are connected through a connecting piece (14), and the connecting piece (14) is rotatably connected to the two lower clamp jaws (12), The pair of steel plate clamps (9) are connected to each other through a connecting plate (15), the end of the connecting plate (15) is fixedly connected to the steel plate clamp seat (10), a driving screw (16) is threadedly connected to the middle part of the connecting plate (15), the bottom end of the driving screw (16) is rotatably connected to the middle part of a driving rod (17), the two ends of the driving rod (17) are fixedly connected to the connecting pieces (14) of the two steel plate clamps (9) respectively, and a backup nut (21) is threadedly connected to the top of the driving screw (16).

2. A longitudinal weld jockey for a ship bottom longitudinal as claimed in claim 1, characterized in that: The steel plate clamp supporting rod is composed of a second sleeve (18) and a second connecting rod (19) which are movably sleeved with each other, and the pair of steel plate clamps (9) are arranged on the first sleeve (5) and the second connecting rod (19).

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