Welding tool for sleeve

Abstract

The utility model relates to a welding tool for a sleeve, and belongs to the technical field of welding tools. The utility model discloses a welding tool for a sleeve. The welding tool comprises a rack; the first track is mounted on the rack; the second rail is parallel to the first rail, and the second rail is mounted on the rack; the sliding welding table is mounted on the second track, and a sliding part and a welding part are arranged on the sliding welding table; the first clamping part is arranged on the rack, and the first clamping part is located in the extension direction of the distribution direction of the first track; the second clamping part is arranged on the first rail in a sliding mode, and the second clamping part slides relative to the first clamping part so as to abut against the fixed sleeve; the supporting sliding table is arranged on the first rail in a sliding mode. The welding fixture is used for solving the technical problem that multiple welding points are inconvenient to rotate and adjust in the clamping, fixing and welding processes in the prior art.

Description

TECHNICAL FIELD

[0001] The utility model belongs to welding tool technical field, in particular to a kind of welding tool for bushing. BACKGROUND

[0002] In the process of pipe fitting welding, since the annular connection needs to be continuously welded, more accurate and stable support is needed, and the common clamping tool operation steps are more numerous and positioning accuracy needs to be calibrated.

[0003] The patent with publication number CN119952404A discloses a kind of bushing flange welding piece processing tool, including base, mounting plate and support sleeve, one end of base is equipped with cavity, first screw rod is rotatably inserted in cavity, worm gear is fixedly connected on first screw rod, worm is rotatably inserted in cavity and engaged with worm gear, one end of worm is penetrated through the inner wall of cavity and is fixedly connected with knob, one end of knob is slidably inserted with latch, a plurality of insertion slots corresponding with latch are arranged around the outer wall of base, the top of first screw rod is penetrated through the inner wall of cavity and extends upwards, the bottom of mounting plate is equipped with threaded slot corresponding with first screw rod, guide rod is fixedly connected on the top of base, guide cavity corresponding with guide rod is arranged on mounting plate.

[0004] The prior art has at least the following problems in use:

[0005] In the process of clamping and welding, it is inconvenient to rotate and adjust multiple welding points. UTILITY MODEL CONTENTS

[0006] The utility model provides a kind of welding tool for bushing, to solve the technical problem that prior art is inconvenient to rotate and adjust multiple welding points in the process of clamping and welding.

[0007] To achieve the above purpose, the utility model realizes by the following technical scheme:

[0008] A welding tool for a sleeve, comprising: a rack; a first track mounted on the rack; a second track arranged in parallel with the first track, and the second track is mounted on the rack; a sliding welding table mounted on the second track, and the sliding welding table is provided with a sliding part and a welding part; a first clamping part arranged on the rack, and the first clamping part is located in the extension direction of the distribution direction of the first track; a second clamping part slidingly arranged on the first track, and the second clamping part slides relative to the first clamping part to abut the fixed sleeve; a support sliding table slidingly arranged on the first track; a support rod, one end of which is fixed on the first clamping part, and the other end of which is detachably connected to the second clamping part; a plurality of pneumatic support modules, the support rod is uniformly distributed with pneumatic outlets and fixing grooves, the pneumatic support modules are clamped in the fixing grooves, and the pneumatic support modules are connected with the pneumatic outlets, and the pneumatic support modules can be independently adjusted to abut the inner wall of the sleeve.

[0009] Further, the pneumatic support modules are inflated on both sides of the welding point through segmented arrangement and independent control, so that the pneumatic support modules on both sides of the welding point abut the inner wall of the sleeve.

[0010] Further, it further comprises: a first support frame mounted on the second clamping part, reciprocally sliding along the first track with the second clamping part, and the first support frame is provided with a receiving groove to abut the side wall of the sleeve; a clamping cylinder mounted on the second clamping part and having a first telescopic part; a fastening block rotatably mounted on the first telescopic part; and a synchronous driving module mounted on the first clamping part and in transmission connection with the support rod.

[0011] Further, the support sliding table is provided with a support groove, the first clamping part is provided with a mounting hole, one end of the sleeve is clamped in the mounting hole, the side wall of the sleeve abuts the support groove and the receiving groove, and the other end of the sleeve is arranged in abutment with the fastening block, and the fastening block is rotated to drive the sleeve to rotate along the central axis in the fixed station.

[0012] Further, the sliding welding table comprises: a first mounting frame mounted on the rack; a second mounting frame mounted on the rack, one end of the second track is mounted on the first mounting frame, and the other end of the second track is mounted on the second mounting frame, and the sliding part reciprocally slides along the distribution direction of the second track; and a locking block rotatably mounted on the sliding part, and the locking block is rotated to abut the second track to fix the position of the sliding part relative to the second track.

[0013] Further, the sliding welding platform further comprises: a mounting seat, a rotating groove is arranged on the sliding part, and the mounting seat is rotationally installed in the rotating groove; and a welding gun, which is installed on the mounting seat and rotates relative to the central axis of the second track.

[0014] Further, the sliding welding platform further comprises: a mounting seat, a rotating groove is arranged on the sliding part, and the mounting seat is rotationally installed in the rotating groove; and a welding gun, which is installed on the mounting seat and rotates relative to the central axis of the second track.

[0015] The welding tool for the sleeve has the beneficial effects that:

[0016] The first clamping part fixes one end of the sleeve, the second clamping part abuts against the other end of the sleeve along the first track, the first support frame accommodating groove abuts against the side wall of the sleeve, the clamping cylinder drives the fastening block to rotate the sleeve, the sleeve is stably clamped and rotated around the axis, and the annular welding requirement is met; the support sliding table slides along the first track, and the support groove of the support sliding table abuts against the side wall of the sleeve, so that multi-point support is realized during the welding of the sleeve, the sleeve is prevented from deviating due to gravity or welding force, and welding precision is ensured; the sliding part slides along the second track to adjust the welding position, and the locking block fixes the sliding part; the driving cylinder drives the mounting seat and the welding gun to rotate and adjust the angle, so that flexible walking of the welding gun and precise angle control are realized, and the welding of sleeves of different specifications is adapted; the rack integrates the first track, the second track and various functional components, so that the integration of the tool structure is realized, the components are facilitated to work cooperatively, and welding efficiency and operation convenience are improved; the penetrating support rod and the distributed, independently controllable pneumatic support modules thereon can flexibly and accurately provide adjustable internal support force at key points on both sides of the weld seam according to the length of the sleeve and the position of the weld seam, the rigidity of the workpiece is enhanced, the internal concave, collapse and deformation of the thin-walled sleeve during the welding process are prevented, and the welding yield and quality are improved; the internal support system and the workpiece are driven by the synchronous driving module to rotate synchronously, so that continuous internal support during the dynamic welding process is realized. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Figure 1 A structural schematic view of a welding tool for a sleeve is provided for the embodiments of the present application.

[0019] Figure 2 A side view of the welding tool for the sleeve provided by the utility model embodiment;

[0020] Figure 3 For Figure 1 An enlarged view of A1 in the middle;

[0021] Figure 4 A side sectional view of the welding tool for the sleeve provided by the utility model embodiment;

[0022] Figure 5 For Figure 4 An enlarged view of B1 in the middle.

[0023] In the figure: 11-frame; 12-first track; 13-second track; 31-first clamping part; 32-second clamping part; 33-supporting sliding table; 34-first supporting frame; 35-clamping air cylinder; 36-first telescopic part; 37-fastening block; 41-first mounting frame; 42-second mounting frame; 43-mounting seat; 44-welding gun; 45-driving air cylinder; 46-driving hinge; 61-supporting rod; 62-synchronous driving module; 63-pneumatic supporting module; 71-bearing; 72-pin block. DETAILED DESCRIPTION

[0024] The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0025] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0026] The terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0027] In the description of the application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be welding, or bolted connection, or riveting; it can be fixedly connected, or detachably connected, or integrally connected; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0028] Embodiment:

[0029] As shown in Figures 1 to 5 The embodiment provides a welding tool for a sleeve, which comprises a rack 11, a first track 12 mounted on the rack 11, a second track 13 arranged in parallel with the first track 12 and mounted on the rack 11, a sliding welding table mounted on the second track 13, wherein the sliding welding table is provided with a sliding part and a welding part, a first clamping part 31 arranged on the rack 11 and located in the extension direction of the distribution direction of the first track 12, a second clamping part 32 slidingly arranged on the first track 12 and sliding relative to the first clamping part 31 to abut and fix the sleeve, a supporting sliding table 33 slidingly arranged on the first track 12, a supporting rod 61 having one end fixed on the first clamping part 31 and the other end detachably connected to the second clamping part 32, and a plurality of pneumatic supporting modules 63 uniformly distributed with pneumatic outlets and fixing grooves on the supporting rod 61, wherein the pneumatic supporting modules 63 are clamped in the fixing grooves and connected with the pneumatic outlets, and the pneumatic supporting modules 63 can be independently adjusted to abut the inner wall of the sleeve.

[0030] In the embodiment, the first rail 12 is selected as a linear guide rail and is fixed on the rack 11 by M8 inner hexagonal bolts; the second rail 13 is also a linear guide rail, is parallel to the first rail 12 and is spaced apart by 500 mm, and is fixed on one side of the top of the rack 11 by bolts of the same specification; the sliding part of the sliding welding table is a sliding block matched with the second rail 13, the sliding block is in clearance fit with the second rail 13, and the sliding resistance is less than or equal to 5 N; the first clamping part 31 is a steel forged plate part, is fixed on one end of the rack 11 by welding, and is reinforced and fixed by using reinforcing angle bars; the second clamping part 32 is provided with a sliding block at the bottom, can slide back and forth along the first rail 12, the sliding speed is controlled by manual pushing, can slide at any position on the first rail 12 according to the length of the sleeve and is fixed by a manual locking bolt, through the above structure, the tool is adapted to sleeves of different lengths, and each sliding part moves stably, so that the position accuracy during welding is ensured. Figure 5 As shown in the specific structure, the bearing 71 is fixed on the inside of the fastening block 37, the inside of the bearing 71 is provided with a base with a pin slot, the end of the support rod 61 is provided with a pin slot, and the pin block 72 is clamped between the support rod 61 and the base in the bearing 71, so that when the workpiece is clamped, the support rod 61 can pass through the inner cavity of the sleeve to form a rigid shaft.

[0031] Further, the pneumatic support module 63 is arranged in sections and controlled independently, and the welding points on both sides are inflated, so that the pneumatic support modules 63 on both sides of the welding point abut against the inner wall of the sleeve.

[0032] In the embodiment, an inflatable capsule is arranged in each pneumatic support module 63, which can be a rubber air bag. When internal support is needed at a specific position, the corresponding pneumatic output port can be supplied with air through an independent air valve outside to drive the capsule at the position to expand, so as to abut against the inner wall of the sleeve in the radial direction. During the girth welding, the pneumatic support modules 63 on both sides of the welding seam can be inflated at the same time to provide strong support to both sides of the welding heat-affected zone from the inside, effectively resisting the shrinkage and deformation caused by welding thermal stress.

[0033] Further, the first support frame 34 is installed on the second clamping part 32 and slides along the first track 12 with the second clamping part 32, the first support frame 34 is provided with a receiving groove to abut against the side wall of the sleeve; the clamping cylinder 35 is installed on the second clamping part 32 and has a first telescopic part 36; the fastening block 37 is rotatably installed on the first telescopic part 36; and the synchronous driving module 62 is installed on the first clamping part 31 and is in transmission connection with the support rod 61.

[0034] In the embodiment, the first support frame 34 is fixed on the second clamping part 32 by bolts, the receiving groove is a semicircle matched with the outer diameter of the sleeve, and a wear-resistant rubber pad is embedded in the groove; the clamping cylinder 35 is a standard cylinder and is fixed on the side of the second clamping part 32 away from the first clamping part 31 by a cylinder mounting seat, and the first telescopic part 36 is specifically a piston rod; the fastening block 37 is made of brass and is rotatably installed on the end of the first telescopic part 36 by a deep groove ball bearing, the deep groove ball bearing is in interference fit with the inside of the fastening block 37 and is in transition fit with the piston rod, and the rotating resistance is ≤1N; by the above arrangement, the flexible abutment and stable clamping of the side wall of the sleeve are realized, and the fastening block 37 can be flexibly rotated to provide a basis for subsequent rotation of the sleeve; the synchronous driving module 62 is installed on the back of the first clamping part 31, and a servo motor can be specifically used; the output shaft of the servo motor is connected with the support rod 61 through a coupling; when the sleeve rotates, the synchronous driving module 62 receives the torsion signal and synchronously starts and performs auxiliary locking to drive the support rod 61 and all the pneumatic support modules 63 installed thereon to rotate at the same angular velocity with the sleeve. This design ensures that there is no relative rotation friction between the internal support and the workpiece, and ensures that the position of the internal support point relative to the weld remains unchanged during the welding process, thereby providing a continuous and stable internal support effect.

[0035] Further, the support slide 33 is provided with a support groove, the first clamping part 31 is provided with a mounting hole, one end of the sleeve is clamped in the mounting hole, the side wall of the sleeve abuts against the support groove and the receiving groove, and the other end of the sleeve abuts against the fastening block 37, and the fastening block 37 is rotated to drive the sleeve to rotate along the central axis in the fixed station.

[0036] In the embodiment, the support groove of the support slide 33 is a V-shaped structure, and a hard alloy wear-resistant layer is welded in the groove; after the one end of the sleeve is inserted into the mounting hole, the sleeve is axially positioned by the elastic clasp in the mounting hole; the abutting surface between the fastening block 37 and the end of the sleeve is arc-shaped, and when the fastening block 37 is rotated, the sleeve is driven to rotate around the central axis by the friction force, and the rotation angular velocity can be manually controlled; by the above design, three-point positioning support of the sleeve is realized, welding deformation is effectively prevented, the sleeve can stably rotate, and the welding requirement of the annular weld is met.

[0037] Further, the sliding welding platform comprises: a first mounting frame 41 mounted on the rack 11; a second mounting frame 42 mounted on the rack 11, one end of the second track 13 is mounted on the first mounting frame 41, and the other end of the second track 13 is mounted on the second mounting frame 42, and the sliding part reciprocates along the distribution direction of the second track 13; and a locking block rotatably mounted on the sliding part, and the locking block is rotated to abut against the second track 13, so as to fix the position of the sliding part relative to the second track 13.

[0038] In the embodiment, the first mounting frame 41 and the second mounting frame 42 are both angle steel welded parts, and are fixed on both ends of the rack 11 by expansion bolts, and the connection with the second track 13 adopts a mortise and tenon joint or bolt fastening; the sliding of the sliding part along the second track 13 is realized by manual pushing; the locking block is in the form of an eccentric wheel structure, and is rotatably mounted on the side surface of the sliding part by a pin shaft, and when the locking block is rotated, the eccentric part thereof abuts against the side surface of the second track 13 tightly, so as to ensure that the sliding part has no displacement during the welding process; through the above structure, stable installation and accurate positioning of the sliding welding platform are realized, the locking is reliable, and the consistency of the welding position is ensured.

[0039] Further, the welding part comprises: a mounting seat 43, a rotating groove is arranged on the sliding part, and the mounting seat 43 is rotatably mounted in the rotating groove; and a welding gun 44 mounted on the mounting seat 43, and the welding gun 44 rotates relative to the center axis of the second track 13.

[0040] In the embodiment, the rotating groove is in a U-shaped structure, and the groove width is 0.2mm larger than the thickness of the mounting seat 43; the mounting seat 43 is rotatably mounted in the rotating groove by two pin shafts, and the pin shafts are in transition fit with the mounting seat 43 and the rotating groove; the welding gun 44 is selected from a group consisting of a gas shielded welding gun with a consumable electrode, and is fixed at the front end of the mounting seat 43 by a quick-change clamp; the rotation angle range of the welding gun 44 relative to the center axis of the second track 13 is-30° to +30°, and through the above setting, multi-angle adjustment of the welding gun 44 is realized, which can adapt to the welding requirements of welds with different angles, and the adjustment process is stable and accurate.

[0041] Further, it further comprises: a driving cylinder 45 mounted on the rack 11, the driving cylinder 45 having a second telescopic part; and a driving hinge 46, one end of which is mounted on the second telescopic part, and the other end of which is mounted on the mounting seat 43, the driving hinge 46 driving the second telescopic part to control the rotation and fixed angle of the welding gun 44.

[0042] In the embodiment, the driving cylinder 45 is selected as a guide rod cylinder, is fixed on the side of the sliding part through a cylinder support, the second telescopic part is connected with one end of the driving hinge 46 through a fish eye joint, the other end of the hinge is connected with the side of the mounting base 43 through a joint bearing, the telescopic amount of the second telescopic part is linearly related to the rotation angle of the welding gun 44, through the above structure, the angle of the welding gun 44 is pneumatically driven and accurately controlled, manual adjustment is replaced, the angle adjustment efficiency and consistency are improved, and the welding quality is further ensured.

[0043] In summary, the first clamping part 31 is fixed to one end of the sleeve, the second clamping part 32 is abutted to the other end of the sleeve along the first track 12, the first support frame 34 is abutted to the side wall of the sleeve in the accommodating groove, the clamping cylinder 35 drives the fastening block 37 to rotate the sleeve, the sleeve is stably clamped and rotated around the axis, and the annular welding requirement is met; the support sliding table 33 is slid along the first track 12, and the support groove is abutted to the side wall of the sleeve, so that multi-point support is realized during the sleeve welding process, the sleeve is prevented from deviating due to gravity or welding force, and the welding precision is ensured; the sliding part is slid along the second track 13 to adjust the welding position, and the fixed position of the locking block is fixed, the mounting base 43 and the welding gun 44 are driven to rotate and adjust the angle by the driving cylinder 45, the flexible walking and accurate angle control of the welding gun 44 are realized, and different specifications of the sleeve are adapted for welding; the first track 12 and the second track 13 and various functional components are integrated on the rack 11, the integration of the tool structure is realized, the components are conveniently cooperated, and the welding efficiency and operation convenience are improved; the support rod 61 and the distributed, independently controllable pneumatic support modules 63 thereon can flexibly and accurately provide adjustable internal support force at key points on both sides of the weld according to the length of the sleeve and the position of the weld, the rigidity of the workpiece is enhanced, the thin-walled sleeve is prevented from being concave, collapsed and deformed during the welding process, and the welding yield and quality are improved; the internal support system and the workpiece are driven to rotate synchronously by the synchronous driving module 62, and continuous internal support during the dynamic welding process is realized.

[0044] The above merely illustrates the specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can easily think of changes or replacements within the technical range recorded in the utility model, which should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.

Claims

1. A welding fixture for a sleeve, characterized by, The utility model relates to a welding device for sleeve, which comprises: a rack (11); a first track (12) mounted on the rack (11); a second track (13) arranged in parallel with the first track (12) and mounted on the rack (11); a sliding welding platform mounted on the second track (13), wherein the sliding welding platform is provided with a sliding part and a welding part; a first clamping part (31) arranged on the rack (11) and located in the extension direction of the distribution direction of the first track (12); a second clamping part (32) slidingly arranged on the first track (12) and sliding relative to the first clamping part (31) to abut against a sleeve; a support sliding platform (33) slidingly arranged on the first track (12); a support rod (61) having one end fixed on the first clamping part (31) and the other end detachably connected to the second clamping part (32); a plurality of pneumatic support modules (63) uniformly distributed on the support rod (61) and connected to the pneumatic output ports and fixed grooves, wherein the pneumatic support modules (63) are detachably connected to the fixed grooves and the pneumatic support modules (63) are independently adjustable to abut against the inner wall of the sleeve.

2. A welding fixture for a sleeve as defined in claim 1, wherein The pneumatic support modules (63) are arranged in sections and independently controlled to inflate on both sides of the welding point, so that the pneumatic support modules (63) on both sides of the welding point abut against the inner wall of the sleeve.

3. A welding fixture for a sleeve as defined in claim 2, wherein Further comprising: a first support frame (34) mounted on the second clamping part (32) and reciprocally sliding along the first track (12) with the second clamping part (32), wherein the first support frame (34) is provided with a receiving groove to abut against the side wall of the sleeve; a clamping cylinder (35) mounted on the second clamping part (32) and having a first telescopic part (36); a fastening block (37) rotatably mounted on the first telescopic part (36); a synchronous driving module (62) mounted on the first clamping part (31) and drivingly connected to the support rod (61).

4. A welding fixture for a sleeve as defined in claim 3, wherein The support sliding platform (33) is provided with a support groove, the first clamping part (31) is provided with a mounting hole, one end of the sleeve is detachably connected to the mounting hole, the side wall of the sleeve abuts against the support groove and the receiving groove, the other end of the sleeve abuts against the fastening block (37), the fastening block (37) is rotated to drive the sleeve to rotate along the central axis in the fixed position, and the synchronous driving module (62) drives the support rod (61), the pneumatic support modules (63) and the workpiece to synchronously rotate.

5. A welding fixture for a sleeve as defined in claim 4, wherein, The sliding welding platform comprises: a first mounting frame (41) mounted on the rack (11); a second mounting frame (42) mounted on the rack (11), wherein one end of the second track (13) is mounted on the first mounting frame (41) and the other end of the second track (13) is mounted on the second mounting frame (42), and the sliding part reciprocally slides along the distribution direction of the second track (13). A locking block is rotatably installed on the sliding part, and the locking block is rotated to abut against the second rail (13), thereby fixing the position of the sliding part relative to the second rail (13).

6. A welding fixture for a sleeve as defined in claim 5, wherein, The welding part comprises: A mounting seat (43) is provided with a rotating groove on the sliding part, and the mounting seat (43) is rotatably installed in the rotating groove; A welding gun (44) is installed on the mounting seat (43), and the welding gun (44) rotates relative to the center axis of the second rail (13).

7. A welding fixture for a sleeve as defined in claim 6, wherein Further comprising: A driving cylinder (45) is installed on the rack (11), and the driving cylinder (45) has a second telescopic part; A driving hinge (46) is installed on one end of the second telescopic part and the other end of the mounting seat (43), and the second telescopic part is driven to control the rotation angle of the welding gun (44).

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