CN114161160B

CN114161160B - Large-size cylinder anti-deformation longitudinal joint milling and welding support device

Info

Publication number: CN114161160B
Application number: CN202210006316.6A
Authority: CN
Inventors: 赵源; 戈军委; 刘邦森; 张书权; 符书豪; 王庆合
Original assignee: Zhejiang Landspace Technology Co Ltd
Current assignee: Zhejiang Landspace Technology Co Ltd
Priority date: 2022-01-04
Filing date: 2022-01-04
Publication date: 2022-12-13
Anticipated expiration: 2042-01-04
Also published as: CN114161160A

Abstract

The invention provides a large-size cylindrical anti-deformation longitudinal seam milling and welding support device, which comprises a headstock and a tailstock; the headstock and the tailstock are fixed at two ends of the base, a support beam is fixed on the tops of the tailstock and the headstock in a crossing manner, and a left-right centering adjusting mechanism and an upper-lower leveling wedge block mechanism are respectively arranged on the tailstock and the headstock and are used for adjusting the relative position between the top and the bottom; the supporting beam is provided with a detachable clamp beam. The invention is based on the integral type external holding clamp structure, can realize the strong rigidity pressing function, has more sufficient rigidity than other external holding modes such as a piano type and the like, has simpler operation, saves more cost and improves the longitudinal seam welding efficiency; the arc control of the cylinder product can be realized, and the butt joint and the fixation of longitudinal joints are convenient; the shape correction of the roundness of the cylinder body can be realized through the bidirectional reverse thread telescopic mechanism at the lower end of the auxiliary support, and the practicability is high; the milling and welding of products can be respectively realized, and the welding efficiency is improved.

Description

Large-size cylinder anti-deformation longitudinal joint milling and welding support device

Technical Field

The invention relates to a large-size cylindrical anti-deformation longitudinal seam milling and welding supporting device.

Background

The friction stir welding is a high-efficiency, high-quality and environment-friendly solid-phase welding technology, has small deformation of a welding workpiece, and is widely applied to various industries such as aviation, aerospace and the like. The most important thing in the friction stir welding process is to realize the internal and external support with high rigidity of the workpiece, so the requirement on the welding tool is extremely high, and the high rigidity of the workpiece can be realized through the welding tool. At present, a barrel welding method is mainly formed by splicing a section of cylinder through girth welding, the welding form is limited, specific requirements are also met on the size of the barrel, certain limitation is achieved, the outside embracing is mainly realized through piano type press claws for compressing, the outside embracing structure is complex, the rigidity is insufficient, the operation is extremely inconvenient, and time and labor are wasted.

Disclosure of Invention

In order to solve the technical problems, the invention provides the anti-deformation longitudinal joint milling and welding supporting device for the large-size cylinder, which is based on an integral type outer holding clamp structure, can realize a strong rigid pressing function, has higher rigidity than other outer holding modes such as a piano type mode and the like, is simpler to operate, saves cost and improves the longitudinal joint welding efficiency.

The invention is realized by the following technical scheme.

The invention provides a large-size cylindrical anti-deformation longitudinal seam milling and welding supporting device, which comprises a headstock and a tailstock; the headstock and the tailstock are fixed at two ends of the base, a support beam is fixed on the tops of the tailstock and the headstock in a crossing manner, and a left-right centering adjusting mechanism and an upper-lower leveling wedge block mechanism are respectively arranged on the tailstock and the headstock and are used for adjusting the relative position between the top and the bottom; the supporting beam is provided with a detachable clamp beam.

The supporting beam consists of a supporting beam main body, a backing plate is arranged on the top surface of the supporting beam main body, and a detachable cushion block is arranged on the backing plate.

The cushion blocks are of two types, namely a welding cushion block without a groove and a milling cushion block with a groove.

An auxiliary support is arranged between the tail frame and the head frame and below the support beam.

The auxiliary stand comprises the auxiliary stand main part, and tailstock and headstock are fixed in respectively at auxiliary stand main part both ends, are equipped with the multiunit support column in the auxiliary stand main part, and every group support column contains support column, right branch dagger, left branch dagger, bottom suspension dagger respectively one, goes up support column, right branch dagger, left branch dagger, bottom suspension dagger and is the cross and all perpendicular to auxiliary stand main part axial.

The outer ends of the right supporting column and the left supporting column are respectively fixed with movable blocks through fixed blocks, and the movable blocks are respectively movably arranged on the two parallel inner supporting plates; the inner supporting plate is provided with a wall plate circumferential adjuster; the right supporting column and the left supporting column are connected with the fixing block through the reverse thread columns.

A top plate is fixed at the top end of the upper support column and used for supporting and mounting the support beam; the bottom end of the lower supporting column is fixed with a movable inner supporting block through a fixed stop block; and a group of supporting upright posts and jacks are respectively arranged at the top and the bottom of the auxiliary support main body close to the end part, and the supporting upright posts and the jacks form a telescopic supporting structure.

The tail frame consists of a tail frame main body, a left-right centering adjusting mechanism and an upper-lower leveling wedge block mechanism are arranged at the top end of the tail frame main body, a tail frame platform is fixed at the upper part of the tail frame main body, and a tail frame straight ladder is arranged on the side surface of the tail frame main body; the headstock is composed of a headstock body, a left-right centering adjusting mechanism and an upper-lower leveling wedge block mechanism are mounted at the top end of the headstock body, a headstock reinforcing stand column auxiliary support is further arranged at the bottom of the upper-lower leveling wedge block mechanism, a headstock platform is fixed at the upper part of the headstock body, and a headstock vertical ladder is fixed on the side face of the headstock platform.

The clamp beam consists of a rotating shaft, a clamp beam base is arranged at the end part of the rotating shaft, and a compression screw is arranged between the clamp beam base and the rotating shaft; a clamping tool is arranged on the rotating shaft; the end part of the rotating shaft is also provided with a pre-stretching mechanism; the pre-stretching mechanism is formed by installing an eccentric gear at the end part of the bracket.

The supporting beam is also provided with an observation platform.

The invention has the beneficial effects that: based on the integral type outer holding clamp structure, the strong rigidity pressing function can be realized, compared with other outer holding modes such as a piano type mode and the like, the rigidity is more sufficient, the operation is simpler, the cost is saved, and the longitudinal joint welding efficiency is improved; the arc control of the cylinder product can be realized, and the butt joint and the fixation of longitudinal joints are convenient; the shape correction of the roundness of the cylinder body can be realized through the bidirectional reverse thread telescopic mechanism at the lower end of the auxiliary support, and the practicability is high; the milling and welding of products can be respectively realized, and the welding efficiency is improved; the leveling of the cushion block can be realized, and the welding quality of the longitudinal seam of the product is improved; the longitudinal pre-tensioning function of the cylinder can be realized, and the butt joint and welding effects of the welding seams are better.

Drawings

FIG. 1 is a schematic block diagram of at least one embodiment of the present invention;

FIG. 2 is a schematic diagram of the assembly of the base of FIG. 1;

FIG. 3 is a schematic diagram of the assembly of the tailrack of FIG. 1;

FIG. 4 is a schematic diagram of the assembly of the headgear of FIG. 1;

FIG. 5 is a schematic view showing the construction of the components of the auxiliary stand of FIG. 1;

FIG. 6 is an enlarged schematic view of the structure at A in FIG. 5;

FIG. 7 is a schematic view of the assembly of the support beam of FIG. 1;

FIG. 8 is a schematic diagram of the assembly of the clamp beam of FIG. 1;

FIG. 9 is a schematic view of the pre-tensioning mechanism of FIG. 8

In the figure: 1-base, 2-tailstock, 3-auxiliary support, 4-headstock, 5-support beam, 6-clamp beam, 7-observation table, 8-base body, 9-upper end arc plate, 10-arc support, 11-tailstock body, 12-tailstock platform, 13-left-right centering adjustment mechanism, 14-up-down leveling wedge mechanism, 15-tailstock straight ladder, 16-support column, 17-jack, 18-auxiliary support body, 19-inner support plate, 20-upper support column, 21-top plate, 22-right support column, 23-left support column, 24-fixed block, 25-movable block, 26-lower support column, 27-fixed block, 28-movable inner support block, 29-wall plate circumferential adjuster, 30-reverse threaded column, 31-headstock straight ladder, 32-headstock body, 33-headstock platform, 34-headstock reinforcing column, 35-support beam body, 36-shim plate, 37-shim block, 38-clamp beam base, 39-compression screw, 40-rotating shaft, 41-pretensioning tool, 43-pretensioning tool support, 43-eccentric gear support 44.

Detailed Description

The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.

Example 1

The large-size cylindrical deformation-preventing longitudinal seam milling and welding supporting device comprises a headstock 4 and a tailstock 2, wherein the headstock is provided with a groove; the headstock 4 and the tailstock 2 are fixed at two ends of the base 1, a supporting beam 5 spans and is fixed at the tops of the tailstock 2 and the headstock 4, and the tailstock 2 and the headstock 4 are respectively provided with a left-right centering adjusting mechanism 13 and an upper-lower leveling wedge block mechanism 14 for adjusting the relative position between the top and the bottom; the support beam 5 is provided with a detachable clamp beam 6.

Example 2

According to embodiment 1, the support beam 5 is composed of a support beam main body 35, a backing plate 36 is installed on the top surface of the support beam main body 35, and a detachable pad 37 is installed on the backing plate 36.

Example 3

In example 1, there are two types of spacers 37, that is, a non-grooved spacer for welding and a grooved spacer for milling.

Example 4

Based on embodiment 1, an auxiliary frame 3 is installed between the tailstock 2 and the headstock 4 below the support beam 5.

Example 5

Based on embodiment 4, the auxiliary support 3 is composed of an auxiliary support main body 18, two ends of the auxiliary support main body 18 are respectively fixed to the tailstock 2 and the headstock 4, multiple groups of support columns are mounted on the auxiliary support main body 18, each group of support columns includes an upper support column 20, a right support column 22, a left support column 23 and a lower support column 26, and the upper support column 20, the right support column 22, the left support column 23 and the lower support column 26 are cross-shaped and are all perpendicular to the axial direction of the auxiliary support main body 18.

Example 6

Based on embodiment 5, the outer ends of the right supporting column 22 and the left supporting column 23 are respectively fixed with a movable block 25 through a fixed block 24, and the movable blocks 25 are respectively movably installed on the two parallel inner supporting plates 19.

Example 7

In accordance with embodiment 6, the inner strut plate 19 is provided with a wall plate circumferential adjuster 29.

Example 8

Based on embodiment 6, the right support column 22 and the left support column 23 are connected to the fixing block 24 through the reverse-threaded column 30.

Example 9

Based on the embodiment 5, the top end of the upper supporting column 20 is fixed with a top plate 21 for supporting and mounting the supporting beam 5; the bottom end of the lower support column 26 is fixed with a movable inner support block 28 through a fixed stop block 27.

Example 10

Based on embodiment 5, a set of supporting upright columns 16 and jacks 17 are respectively arranged at the top and the bottom of the auxiliary bracket main body 18 near the end part, and the supporting upright columns 16 and the jacks 17 form a telescopic supporting structure.

Example 11

Based on embodiment 1, the tail frame 2 is composed of a tail frame main body 11, a left-right centering adjusting mechanism 13 and an upper-lower leveling wedge block mechanism 14 are installed at the top end position of the tail frame main body 11, a tail frame platform 12 is fixed at the upper part of the tail frame main body 11, and a tail frame straight ladder 15 is arranged on the side surface of the tail frame main body 11; the headstock 4 consists of a headstock main body 32, a left-right centering adjusting mechanism 13 and an upper-lower leveling wedge block mechanism 14 are arranged at the top end of the headstock main body 32, the bottom of the upper-lower leveling wedge block mechanism 14 is also supported by a headstock reinforcing upright post 34 in an auxiliary manner, a headstock platform 33 is fixed on the upper portion of the headstock main body 32, and a headstock vertical ladder 31 is fixed on the side surface of the headstock platform 33.

Example 12

Based on the embodiment 1, the clamp beam 6 consists of a rotating shaft 40, the end part of the rotating shaft 40 is provided with a clamp beam base 38, and a compression screw 39 is arranged between the clamp beam base 38 and the rotating shaft 40; the clamping tool 42 is arranged on the rotating shaft 40; the end of the rotating shaft 40 is also provided with a pretensioning mechanism 41; the pretensioning mechanism 41 is formed by mounting an eccentric gear 44 on the end of a bracket 43.

Example 13

In embodiment 1, the support beam 5 is further provided with an observation stage 7.

Example 14

Based on the above embodiment, the device comprises a base 1, a headstock 4, a tailstock 2, an auxiliary support 3, a support beam 5, a clamp beam 6 and an observation platform 7. The base 1 is respectively connected with the headstock 4 and the tailstock 2 through bolts, the head end and the tail end of the auxiliary support 3 are respectively connected with the headstock 4 and the tailstock 2 through bolts, the supporting beam 5 is respectively connected with the headstock 4, the tailstock 2 and the clamp beam 6 through bolts, and the observation platform 7 is connected with the cross beam of the friction stir welding equipment through bolts.

Arc support 10 has been welded to the 8 left and right sides of base main part of base 1, and the arc and the laminating of product outer wall of arc support 10 have upper end arc 9 in the welding of base main part 8 top, and upper end arc 9 supports the drum outer wall and drags the drum.

The headstock 4 comprises a headstock main body 32, a headstock vertical ladder 31, a headstock platform 33, a headstock up-down leveling wedge mechanism 14, a left-right centering adjustment mechanism 13 and a headstock reinforcing upright post 34. The headstock vertical leveling wedge block mechanism 14 moves up and down through a screw adjusting wedge block, and the left and right centering adjusting mechanism 13 moves left and right through a screw adjusting support beam 5.

The tail frame 2 comprises a tail frame main body 11, a tail frame vertical ladder 15, a tail frame platform 12, an upper and lower leveling wedge block mechanism 14 and a left and right centering adjusting mechanism 13. The upper and lower leveling wedge block mechanisms 14 move up and down through the wedge blocks adjusted by the screws, and the left and right centering adjustment mechanisms 13 move left and right through the support beam 5 adjusted by the screws.

Auxiliary stand 3 includes auxiliary stand main part 18, and auxiliary stand main part end is equipped with support post 16, and jack 17 is placed to the support post upper end, and the support post top is equipped with support column 20, goes up support column and realizes reciprocating of roof 21 through twisting reverse screw. Auxiliary stand main part below is equipped with lower support column 26, and the lower support column below is equipped with support block 28 in fixed dog 27 and the activity, and the support block realizes reciprocating through twisting the screw rod in the activity, and lower support column 26 passes through reverse threaded connection with fixed dog 27, moves reverse screw through twisting and realizes that the whole of fixed dog and activity support block reciprocates in the fixed dog. Auxiliary stand main part left is equipped with left branch dagger 23, and left branch dagger one end is passed through the bolt and is connected with the auxiliary stand main part, and the other end is equipped with fixed block 24 and movable block 25, is connected through reverse screw mechanism between left branch dagger and the fixed block, and fagging 19 in four left branch daggers hold up jointly, are equipped with wallboard circumference regulator 29 on the interior fagging. The right side of auxiliary stand main part is equipped with right branch dagger 22, and is similar with left branch dagger structure, and right branch dagger passes through reverse-thread post 30 to be connected with the right-hand member fixed block, and fagging 19 in four right branch daggers hold up jointly.

The support beam 5 comprises a support beam body 35, a backing plate 36 is arranged above the support beam body and connected with the support beam body of the main body through screws, a cushion block 37 is arranged in the middle above the backing plate 36, and the cushion block has two structures of a milling groove and a non-milling groove and is respectively used for milling and welding wall plates. The cushion block is connected with the backing plate through a countersunk head screw.

The clamp beam 6 comprises a clamp beam base 38 and a turning shaft 40, one base 38 at each end of the turning shaft, the clamp beam base 38 being provided with a pretensioning mechanism 41 comprising a bracket 43 and an eccentric gear 44. The rotating shafts are provided with compression screws 39, the rotating shafts can rotate by rotating the compression screws, and the two rotating shafts can be compressed by the aid of clamping tools 42.

The observation platform 7 is fixed on the beam of the welding equipment.

A typical method of use of the present invention comprises the following major steps:

step 1, firstly, the device is installed on a workbench of friction stir welding equipment, and the length direction of a support beam 5 is consistent with the X-axis direction of the friction stir welding equipment by adjusting a headstock and a tailstock left-right centering adjusting mechanism 13 during installation. The straightness of the cushion block above the supporting beam meets the requirement by adjusting the upper and lower leveling wedge block mechanisms 14 of the headstock and the tailstock.

And 2, loosening the bolts of the clamp beam 6, lifting the clamp beam away by using a travelling crane, taking down the cushion block without the groove, installing the cushion block with the groove for milling, and lifting the clamp beam. The left support column 23 is adjusted to a reasonable length by adjusting the reverse screw. And hoisting the grid wall plate to be milled, placing one end face of the grid wall plate at the inner supporting plate 19, adjusting the angle of the wall plate through the wall plate circumferential adjuster 29, meanwhile, penetrating the other end face of the grid wall plate from the gap between the clamp beam 6 and the supporting beam 5, putting on the cushion block 37 and the base plate 36, screwing the compression screw 39, installing the clamping tool 42, replacing the stirring head on the stirring welding equipment handle with a proper milling cutter, milling the allowance of the welding seam edge of the grid wall plate, and milling the other wall plates similarly.

And 3, hoisting away the clamp beam 6, and replacing the cushion block with a welding cushion block without a groove.

And 4, hoisting the first and second grid wall plates to enable the welding seam end faces of the two wall plates to be in butt joint and placed on the cushion block for welding, so as to ensure that the welding seam is collinear with the central line of the cushion block. The compression screw rod 39 is screwed, the clamping tool 42 is installed, meanwhile, the other end faces of the two wallboards are respectively placed on the left inner supporting plate and the right inner supporting plate, the inner walls of the wallboards are attached to the arc faces of the inner supporting plates, the angles of the wallboards are adjusted through the wallboard circumferential adjuster 29, and the first wallboard and the second wallboard are completely fixed.

And 5, adjusting the upper support column 20 of the auxiliary support 3 to be in contact with the support beam 5, and adjusting the lower support column 26 of the auxiliary support 3 to be in contact with the arc-shaped plate at the upper end of the base, so that the downward transmission of the upsetting force during welding is realized, and the rigidity of the support beam 5 is enhanced.

And 6, replacing the milling cutter with a stirring head, starting a main shaft of the cutter handle, and welding a first welding line.

And 7, loosening the clamp beam bolts, lifting away the clamp beam 6, rotating the welded 1/2 barrel by 90 degrees, hoisting a third wallboard, compressing the two sides of the second welding line by using the clamp beam 6, fitting the left inner support plate 19 of the tool with the inner wall of the first welding line, fitting the right inner support plate of the tool with the inner wall of the third wallboard, adjusting the angle of the wallboard through the wallboard circumferential adjuster 29, and fixing after the adjustment. And adjusting a fixed stop block 27 below a lower support column 26 of the auxiliary support 3 to block the end face of the first wall plate, moving a movable inner support block 28 downwards, pressing the inner wall of the first wall plate through an adjusting screw to prevent the wall plate from rotating circumferentially, and welding a second welding seam.

And 8, loosening the clamp beam bolts, lifting away the clamp beam 6, rotating the welded front three wallboards by 90 degrees, lifting a fourth wallboard, pressing two sides of a third welding line by using the clamp beam 6, fitting the inner support plate 19 on the left side of the tool with the inner wall of the second welding line, fitting the inner support plate on the right side of the tool with the inner walls of the third wallboard and the fourth wallboard, adjusting the fixed stop block 27 and the movable inner support block 28 below the lower support column 26 to fit and press the fixed stop block and the movable inner support block with the inner wall of the first welding line, and welding the third welding line. And finishing the welding of the fourth welding seam in the same way.

And 9, fixing the support upright 16 on the tool through bolts, lifting the jack 17, supporting the auxiliary support main body 18 and the support beam 5, taking down all the bolts on the tail frame 2, hoisting the tail frame 2 away, and then lowering the jack and the support upright below the auxiliary support main body.

And 10, lifting upwards and translating outwards to take out the cylinder.

Claims

1. The utility model provides a jumbo size drum shape longitudinal joint of preapring for an unfavorable turn of events mills and welds strutting arrangement, includes headstock (4) and tailstock (2), its characterized in that: the headstock (4) and the tailstock (2) are fixed at two ends of the base (1), a supporting beam (5) is fixed on the tops of the tailstock (2) and the headstock (4) in a crossing manner, and the tailstock (2) and the headstock (4) are respectively provided with a left-right centering adjusting mechanism (13) and an upper-lower leveling wedge block mechanism (14) for adjusting the relative position between the top and the bottom; a detachable clamp beam (6) is arranged on the support beam (5);

an auxiliary support (3) is arranged between the tail frame (2) and the head frame (4) and is lower than the support beam (5); auxiliary stand (3) comprise auxiliary stand main part (18), auxiliary stand main part (18) both ends are fixed in tailstock (2) and headstock (4) respectively, be equipped with the multiunit support column on auxiliary stand main part (18), every group support column contains support column (20), right branch dagger (22), left branch dagger (23), bottom suspension dagger (26) respectively one, go up support column (20), right branch dagger (22), left branch dagger (23), bottom suspension dagger (26) are the cross and all perpendicular to auxiliary stand main part (18) axial.

2. The large-sized cylindrical deformation-preventing longitudinal seam milling and welding support device as claimed in claim 1, wherein: the support beam (5) consists of a support beam main body (35), a backing plate (36) is arranged on the top surface of the support beam main body (35), and a detachable cushion block (37) is arranged on the backing plate (36).

3. The large-sized cylindrical deformation-preventing longitudinal seam milling and welding support device as claimed in claim 2, wherein: the cushion blocks (37) are of two types, namely a welding cushion block without a groove and a milling cushion block with a groove.

4. The large-size cylindrical deformation-preventing longitudinal joint milling and welding supporting device as claimed in claim 1, wherein: the outer ends of the right supporting column (22) and the left supporting column (23) are respectively fixed with a movable block (25) through a fixed block (24), and the movable blocks (25) are respectively movably arranged on the two parallel inner supporting plates (19); the inner supporting plate (19) is provided with a wall plate circumferential adjuster (29); the right supporting column (22) and the left supporting column (23) are connected with the fixing block (24) through the reverse thread column (30).

5. The large-size cylindrical deformation-preventing longitudinal joint milling and welding supporting device as claimed in claim 1, wherein: a top plate (21) is fixed at the top end of the upper support column (20) and used for supporting and mounting the support beam (5); the bottom end of the lower supporting column (26) is fixed with a movable inner supporting block (28) through a fixed stop block (27); and a group of supporting upright columns (16) and jacks (17) are respectively arranged at the top and the bottom of the auxiliary support main body (18) at positions close to the end parts, and the supporting upright columns (16) and the jacks (17) form a telescopic supporting structure.

6. The large-size cylindrical deformation-preventing longitudinal joint milling and welding supporting device as claimed in claim 1, wherein: the tail frame (2) is composed of a tail frame main body (11), a left-right centering adjusting mechanism (13) and an upper-lower leveling wedge block mechanism (14) are installed at the top end of the tail frame main body (11), a tail frame platform (12) is fixed at the upper part of the tail frame main body (11), and a tail frame straight ladder (15) is arranged on the side surface of the tail frame main body (11); the headstock (4) is composed of a headstock main body (32), a left-right centering adjusting mechanism (13) and an upper-lower leveling wedge block mechanism (14) are mounted at the top end of the headstock main body (32), a headstock reinforcing upright post (34) is arranged at the bottom of the upper-lower leveling wedge block mechanism (14) for auxiliary support, a headstock platform (33) is fixed at the upper part of the headstock main body (32), and a headstock vertical ladder (31) is fixed on the side surface of the headstock platform (33).

7. The large-size cylindrical deformation-preventing longitudinal joint milling and welding supporting device as claimed in claim 1, wherein: the clamp beam (6) consists of a rotating shaft (40), a clamp beam base (38) is arranged at the end part of the rotating shaft (40), and a compression screw rod (39) is arranged between the clamp beam base (38) and the rotating shaft (40); a clamping tool (42) is arranged on the rotating shaft (40); the end part of the rotating shaft (40) is also provided with a pre-stretching mechanism (41); the pretensioning mechanism (41) is composed of an eccentric gear (44) arranged at the end part of a bracket (43).

8. The large-sized cylindrical deformation-preventing longitudinal seam milling and welding support device as claimed in claim 1, wherein: an observation platform (7) is also arranged on the supporting beam (5).