Positioning clamp for longitudinal machining of marine pipe fitting

Abstract

The utility model provides a marine pipe fitting longitudinal processing location fixture, including base, support seat, locating mechanism and clamping mechanism, support seat is provided above base, locating mechanism is installed on support seat, support seat middle part is provided with through groove, and support seat lower end face is installed pipeline support platform, and pipeline support platform is provided below through groove, and the clamping mechanism is provided with the through groove. According to the marine pipe fitting machining fixture, the structural design is novel, the universality, the positioning precision and the clamping stability of the fixture can be improved, meanwhile, damage to the surface of the pipe fitting is avoided, and the machining quality and efficiency of the marine pipe fitting are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to marine pipe fitting processing equipment technical field especially relates to a kind of positioning fixture for longitudinal processing of marine pipe fitting. BACKGROUND

[0002] In the shipbuilding process, pipe fittings are indispensable important components, and their machining precision and quality directly affect the performance and safety of the ship. During the machining of pipe fittings, they need to be fixed in the right position by positioning fixtures to ensure the accuracy and stability of the machining. At present, according to length or processing method, it is generally divided into horizontal processing and longitudinal processing, and the positioning fixtures used for horizontal processing and longitudinal processing are also different.

[0003] The existing longitudinal processing positioning fixture for marine pipe fittings has certain limitations. On the one hand, most traditional fixtures have fixed structures and poor universality, and can only be used for positioning and clamping pipe fittings of specific specifications and shapes. For pipe fittings of different diameters, lengths and bending degrees, different fixtures often need to be replaced, which not only increases production cost but also reduces processing efficiency. On the other hand, some fixtures are prone to damage the surface of the pipe fittings when clamping them, affecting the surface quality and service life of the pipe fittings. In addition, the positioning accuracy of the fixture is difficult to guarantee during the machining process, resulting in large size deviation of the machined pipe fittings, which cannot meet the high precision requirements of shipbuilding. Therefore, it is necessary to design a positioning fixture for longitudinal processing of marine pipe fittings. SUMMARY

[0004] The utility model provides a kind of positioning fixture for longitudinal processing of marine pipe fitting, to solve the problems of poor universality of existing fixture, easy to damage pipe fitting surface and difficult to guarantee positioning accuracy, realize the universality of fixture, positioning accuracy and clamping stability can be improved.

[0005] The utility model provides a kind of positioning fixture for longitudinal processing of marine pipe fitting, it includes base, support seat, positioning mechanism and clamping mechanism;

[0006] The support seat is arranged above the base, the base provides stable support for the entire positioning fixture, a through slot is formed in the middle of the support seat, and a pipeline support platform is installed at the lower end surface of the support seat, and the pipeline support platform is arranged below the through slot, and the pipeline support platform supports the pipe fitting to be machined.

[0007] The positioning mechanism is installed on the support seat, and the positioning mechanism includes a positioning block, a screw rod and an adjusting nut, a plurality of longitudinal positioning holes are formed in the upper end surface of the support seat, the bottom end of the screw rod penetrates the support seat and is placed in the positioning hole, and the top end of the screw rod is threadedly connected with the adjusting nut arranged above the positioning block.

[0008] The clamping mechanism is arranged on the upper end surface of the support base and is arranged opposite to the positioning mechanism.

[0009] Preferably, the positioning clamp for longitudinal processing of marine pipe fittings provided by the application comprises a clamping mechanism, a positioning mechanism and a lifting guide mechanism.

[0010] Preferably, the clamping mechanism comprises a support plate, a jaw assembly and a telescopic hydraulic cylinder, the support plate is perpendicular to the upper end surface of the support base, the telescopic hydraulic cylinder is fixed to the inner side of the support plate, and the telescopic end of the telescopic hydraulic cylinder is connected with the jaw assembly.

[0011] Preferably, the jaw assembly comprises a V-shaped jaw and a fixed block, the fixed block is arranged on the outer side of the V-shaped jaw, the telescopic end of the telescopic hydraulic cylinder is connected with the fixed block, and the inner side of the V-shaped jaw is covered with a rubber layer.

[0012] Preferably, the positioning clamp for longitudinal processing of marine pipe fittings provided by the application further comprises a lifting guide mechanism, the lifting guide mechanism comprises a lifting assembly and a guide assembly, the lifting assembly comprises two groups of support arm assemblies which are symmetrically arranged, each group of the support arm assemblies comprises a rotating shaft, a support arm, a sliding block and a sliding rail, the rotating shaft is arranged on the lower end surface of the support base, one end of the support arm is connected with the rotating shaft, the other end of the support arm is connected with the sliding block, the sliding rail is arranged on the upper end surface of the base, the sliding block is slidably arranged in the sliding rail, the lifting guide mechanism further comprises a double-headed hydraulic cylinder, the double-headed hydraulic cylinder is arranged on the upper end surface of the base, the two telescopic ends of the double-headed hydraulic cylinder are respectively connected with the outer side walls of the two sliding blocks, and the guide assembly is arranged on the two sides of the support base.

[0013] Preferably, the guide assembly comprises a guide sleeve and a guide column, the guide sleeve is arranged on the outer wall of the support base, the bottom end of the guide column is perpendicular to the upper end surface of the base, the other end of the guide column is arranged in the guide sleeve, and the guide rod and the guide sleeve are in clearance fit.

[0014] Beneficial effects:

[0015] (1) The positioning clamp has novel structure design, can improve the universality, positioning precision and clamping stability of the clamp, avoids damage to the surface of the pipe fitting, and improves the processing quality and efficiency of the marine pipe fitting.

[0016] (2) The rubber layer on the inner side of the positioning block and the clamping jaw effectively avoids direct contact between the clamp and the pipe fitting, prevents scratches, wear and other damage to the surface of the pipe fitting during clamping and positioning, and improves the surface quality and service life of the pipe fitting.

[0017] (3) The clamping mechanism can provide sufficient clamping force to ensure that the pipe fitting does not displace or loosen during processing, ensuring the stability and safety of processing.

[0018] (4) The lifting guide mechanism can adjust the height of the support seat according to the pipe fitting processing requirements, further improving the pipe fitting processing efficiency.

[0019] The above description is only a summary of the technical scheme of the utility model embodiment, in order to more clearly understand the technical means of the utility model embodiment, which can be implemented according to the content of the specification, and in order to let the above and other purposes, characteristics and advantages of the utility model embodiment can be more obvious and easy to understand, the following specific embodiment of the utility model is described. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the utility model embodiment, the following will be a simple introduction to the drawings needed to be used in the embodiment description, obviously, the drawings in the following description are some embodiments of the utility model, for those skilled in the art, without creative labor, other drawings can also be obtained according to these drawings.

[0021] Fig. 1 It is a structural schematic diagram of the utility model;

[0022] Fig. 2 It is a top view of the positioning mechanism and clamping mechanism installation of the utility model;

[0023] Fig. 3 It is a structural schematic diagram of the lifting guide mechanism of the utility model;

[0024] Mark explanation: base 1, support seat 2, positioning block 3, screw 4, adjusting nut 5, support plate 6, clamping jaw assembly 7, telescopic hydraulic cylinder 8, V-shaped clamping jaw 9, fixed block 10, clamping surface 11, lifting assembly 12, guide assembly 13, rotating shaft 14, support arm 15, sliding block 16, slide rail 17, double-head hydraulic cylinder 18, guide sleeve 19, guide column 20, through slot 21, pipe supporting platform 22, pipe fitting to be processed 23, rubber layer 24. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model below. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the utility model belongs; the terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit the utility model; the terms "include" and "have" in the specification and claims of the utility model and their any variations are intended to cover non-exclusive inclusion.

[0027] In addition, the terms "first", "second" and the like in the specification and claims of the utility model and the above drawings are used to distinguish different objects, rather than to describe a specific order, and can explicitly or implicitly include one or more of the features.

[0028] In the description of the utility model, it should be explained that, unless otherwise explicitly specified and limited, the terms "mount", "connect" and "connect" should be understood broadly, for example, the "connect" or "connect" of the mechanical structure can mean the physical connection, for example, the physical connection can be fixed connection, for example, fixed connection through fixing member, for example, fixed connection through screw, bolt or other fixing member; the physical connection can also be detachable connection, for example, mutual clamping or clamping connection; the physical connection can also be integrally connected, for example, welding, bonding or integrally formed connection is connected. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0029] In order to make those skilled in the art better understand the utility model scheme, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings.

[0030] Please refer to Figs. 1-3 The utility model discloses a positioning fixture for longitudinal processing of marine pipe fittings, including base 1, support 2, positioning mechanism and clamping mechanism,

[0031] The support base 2 is arranged above the base 1, the base 1 provides stable support for the whole positioning fixture, a through groove 21 is arranged in the middle of the support base 2, and a pipeline support platform 22 is arranged at the lower end surface of the support base 2 and below the through groove 21, and the pipeline support platform 22 supports a pipe to be machined 23.

[0032] The positioning mechanism is arranged on the support base 2, and the positioning mechanism comprises a positioning block 3, a screw rod 4 and an adjusting nut 5, a plurality of longitudinal positioning holes are arranged on the upper end surface of the support base 2, the bottom end of the screw rod 4 penetrates through the support base 2 and is arranged in the positioning hole, the top end of the screw rod 4 is threadedly connected with the adjusting nut 5 arranged above the positioning block 3, a clamping surface 11 is arranged on the outer side surface of the positioning block 3, the clamping surface 11 is in a V-shaped structure, a rubber layer 24 is arranged on the inner side surface of the clamping surface 11, and the clamping surface 11 and the V-shaped clamping jaw 9 clamp the pipe.

[0033] The clamping mechanism is arranged on the upper end surface of the support base 2 and is arranged opposite to the positioning mechanism, the clamping mechanism comprises a support plate 6, a clamping jaw assembly 7 and a telescopic hydraulic cylinder 8, the support plate 6 is perpendicular to the upper end surface of the support base 2, the tail end of the telescopic hydraulic cylinder 8 is fixed to the inner side surface of the support plate 6, the telescopic end of the telescopic hydraulic cylinder 8 is connected with the clamping jaw assembly 7, the clamping jaw assembly 7 comprises a V-shaped clamping jaw 9 and a fixed block 10, the fixed block 10 is arranged on the outer side surface of the V-shaped clamping jaw 9, the telescopic end of the telescopic hydraulic cylinder 8 is connected with the fixed block 10, and the inner side surface of the V-shaped clamping jaw 9 is covered with a rubber layer 24. When the telescopic hydraulic cylinder works, the clamping jaw assembly is driven, the V-shaped clamping jaw is in contact with the outer wall of the pipe, and the pipe is fixed between the V-shaped clamping jaw and the positioning block, the rubber layers on the inner side surfaces of the positioning block and the clamping jaw effectively avoid direct contact between the fixture and the pipe, prevent damage such as scratches and abrasion on the surface of the pipe during clamping and positioning, and improve the surface quality and service life of the pipe.

[0034] The utility model also includes elevating guide mechanism, elevating guide mechanism includes elevating assembly 12 and guide component 13, elevating assembly 12 includes two groups of support arm assemblies of symmetrical arrangement, every group's support arm assembly includes pivot 14, support arm 15, sliding block 16 and slide rail 17, pivot 14 is installed in support seat 2 lower end surface, support arm 15 one end is connected with pivot 14, and the other end is connected sliding block 16, slide rail 17 is installed in base 1 upper end surface, sliding block 16 is slidably arranged in slide rail 17, still include double -end hydraulic cylinder 18, double -end hydraulic cylinder 18 is installed in base 1 upper end surface, two telescopic ends of double -end hydraulic cylinder 18 are connected with two sliding blocks 16 outer lateral wall respectively, guide component 13 is installed in support seat 2 both sides, guide component 13 includes guide sleeve 19 and guide column 20, guide sleeve 19 is installed in support seat 2 outer wall, guide column 20 bottom end is perpendicular to base 1 upper end surface, the other end of guide column 20 is placed in guide sleeve 19, clearance fit is used between guide rod 20 and guide sleeve 19, can guarantee support seat smooth movement in height adjustment process, can also play the role of auxiliary support and guide, prevent support seat from deviating or shaking in the adjustment process, ensure the stability and accuracy of height adjustment. When needing to adjust the height of support seat, the operator only needs to control double -end hydraulic cylinder work, and double -end hydraulic cylinder pushes sliding block and drives support arm to move, and then drives support seat to move up and down along the direction of guide rod, to realize the accurate control to the height of support seat.

[0035] Working principle: the fixture is placed on the worktable of the machining equipment, the position of the positioning block is preliminarily adjusted according to the approximate size of the pipe fitting, so that the distance is slightly larger than the outer diameter of the pipe fitting; the marine pipe fitting to be machined is supported on the pipe supporting platform after being passed through the through groove, then the position of the positioning block is accurately adjusted by rotating the screw rod, so that the positioning block is in close contact with the pipe fitting, preliminary positioning of the pipe fitting is realized, the hydraulic system is started, the telescopic hydraulic cylinder works, the piston rod is extended, the V-shaped clamping jaw is driven to move towards the pipe fitting, and the pipe fitting is gradually clamped, after the pipe fitting is accurately positioned and clamped, machining operations such as cutting, welding and drilling can be carried out.

[0036] In summary, the utility model discloses novel structure design, can improve the versatility of fixture, positioning accuracy and clamping stability, avoid the damage to the surface of pipe fitting at the same time, improve the processing quality and efficiency of marine pipe fitting.

[0037] The above-described above embodiments are only used to illustrate the technical solutions of the present application, and are not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features therein can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A positioning fixture for longitudinal machining of marine pipe fittings, characterized in that, It includes base (1), support seat (2), positioning mechanism and clamping mechanism; The support seat (2) is arranged above the base (1), the base (1) provides stable support for the whole positioning fixture, a through groove (21) is formed in the middle of the support seat (2), and a pipeline support platform (22) is installed at the lower end surface of the support seat (2), and the pipeline support platform (22) is arranged below the through groove (21), and the pipeline support platform (22) supports the pipe (23) to be processed. The positioning mechanism is installed on the support seat (2), the positioning mechanism comprises a positioning block (3), a screw rod (4) and an adjusting nut (5), a plurality of longitudinal positioning holes are formed in the upper end surface of the support seat (2), the bottom end of the screw rod (4) penetrates the support seat (2) and is arranged in the positioning hole, and the top end of the screw rod (4) is threadedly connected with the adjusting nut (5) arranged above the positioning block (3). The clamping mechanism is installed on the upper end surface of the support seat (2) and is arranged opposite to the positioning mechanism.

2. A positioning jig for longitudinal processing of a marine pipe according to claim 1, wherein The clamping mechanism comprises a support plate (6), a clamping jaw assembly (7) and a telescopic hydraulic cylinder (8), the support plate (6) is perpendicular to the upper end surface of the support seat (2), the tail end of the telescopic hydraulic cylinder (8) is fixed to the inner side of the support plate (6), and the telescopic end of the telescopic hydraulic cylinder (8) is connected with the clamping jaw assembly (7).

3. A positioning jig for longitudinal processing of a marine pipe according to claim 2, wherein The clamping jaw assembly (7) comprises a V-shaped clamping jaw (9) and a fixed block (10), the fixed block (10) is installed on the outer side of the V-shaped clamping jaw (9), the telescopic end of the telescopic hydraulic cylinder (8) is connected with the fixed block (10), and the inner side of the V-shaped clamping jaw (9) is covered with a rubber layer (24).

4. The positioning jig for longitudinal processing of a marine pipe according to claim 1, wherein A clamping surface (11) is arranged on the outer side of the positioning block (3), the clamping surface (11) is in a V-shaped structure, the inner side of the clamping surface (11) is covered with a rubber layer (24), and the clamping surface (11) clamps the pipe between the V-shaped clamping jaw (9).

5. The positioning jig for the longitudinal processing of a marine pipe according to claim 1, wherein It also comprises a lifting guide mechanism, the lifting guide mechanism comprises a lifting assembly (12) and a guide assembly (13), the lifting assembly (12) comprises two groups of support arm assemblies arranged symmetrically, each group of support arm assemblies comprises a rotating shaft (14), a support arm (15), a sliding block (16) and a sliding rail (17), the rotating shaft (14) is installed on the lower end surface of the support seat (2), one end of the support arm (15) is connected with the rotating shaft (14), the other end is connected with the sliding block (16), the sliding rail (17) is installed on the upper end surface of the base (1), and the sliding block (16) is slidably arranged in the sliding rail (17), the lifting guide mechanism further comprises a double-head hydraulic cylinder (18), the double-head hydraulic cylinder (18) is installed on the upper end surface of the base (1), the two telescopic ends of the double-head hydraulic cylinder (18) are respectively connected with the outer side walls of the two sliding blocks (16), and the guide assembly (13) is installed on both sides of the support seat (2).

6. A positioning jig for longitudinal processing of a marine pipe according to claim 5, wherein The guide assembly (13) comprises a guide sleeve (19) and a guide column (20), the guide sleeve (19) is installed on the outer wall of the support base (2), the bottom end of the guide column (20) is perpendicular to the upper end surface of the base (1), the other end of the guide column (20) is arranged in the guide sleeve (19), and the guide column (20) and the guide sleeve (19) are in clearance fit.

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