CN212793662U

CN212793662U - Welding tool for denitration spray gun

Info

Publication number: CN212793662U
Application number: CN202021571988.4U
Authority: CN
Inventors: 耿平豹; 徐宜衡; 周青云
Original assignee: Shanghai Caneen Spraying Systems Co ltd
Current assignee: Shanghai Caneen Spraying Systems Co ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2021-03-26
Anticipated expiration: 2030-07-31

Abstract

The application relates to a welding tool of a denitration spray gun, which comprises a workbench, wherein a straight pipe clamp for horizontally clamping a straight pipe and a flange clamp which is arranged at one end of the straight pipe clamp in the length direction and is used for vertically clamping a flange plate are arranged on the workbench; the flange anchor clamps include vertical fixed setting in the backup pad of workstation upper surface, set up the circular arc groove that is used for placing the ring flange in the backup pad, set up the fixed frame in backup pad top and the telescopic cylinder of vertical setting on fixed frame, and telescopic cylinder's piston rod is vertical sets up downwards, and the below of flange anchor clamps is equipped with the lifting unit who is used for adjusting flange anchor clamps and goes up and down. This application has the effect that effectively improves denitration spray gun welding convenience.

Description

Welding tool for denitration spray gun

Technical Field

The application relates to the technical field of welding equipment, especially, relate to a welding frock of denitration spray gun.

Background

The spray gun is a device which uses liquid or compressed air to rapidly release as power, so that the liquid in the spray gun is converted into mist to be sprayed out. The denitration spray gun is one kind of spray gun, and is mainly used in the denitration treatment process in industrial production.

Referring to fig. 1, a conventional denitration spray gun includes an arc-shaped elbow 50, a flange plate 60 welded at one end of the arc-shaped elbow 50, and a straight pipe 70 welded at the other end of the arc-shaped elbow 50, where the arc-shaped elbow 50 and the straight pipe 70 have three-layer structures, i.e., an inner layer pipe, a middle layer pipe, and an outer layer pipe, where the length of the outer layer pipe of the straight pipe is smaller than that of the middle layer pipe, and the length of the middle layer pipe is smaller than that of the inner layer. When the denitration spray gun is processed, the inner layer pipe, the middle layer pipe and the outer layer pipe at one end of the arc-shaped elbow 50 need to be respectively welded with the inner layer pipe, the middle layer pipe and the outer layer pipe of the straight pipe 70 correspondingly, and the other end of the arc-shaped elbow 50 is welded with the flange plate 60.

All utilize manual welding among the prior art basically, but the denitration spray gun generally is used for large-scale denitration occasions such as boiler, glass kiln, rotary kiln, so denitration spray gun self length and quality are all great, lead to when carrying out position removal, weld joint butt joint to the denitration spray gun during manual welding than inconvenient. With respect to the related art in the above, the inventors consider that there is a defect of inconvenience in welding in the related art.

SUMMERY OF THE UTILITY MODEL

In order to improve denitration spray gun welded convenience, this application provides a denitration spray gun's welding frock.

The application provides a welding frock of denitration spray gun adopts following technical scheme:

a welding tool for a denitration spray gun comprises a workbench, wherein a straight pipe clamp for horizontally clamping a straight pipe and a flange clamp which is arranged at one end of the straight pipe clamp in the length direction and is used for vertically clamping a flange plate are arranged on the workbench; the flange anchor clamps include vertical fixed setting in the backup pad of workstation upper surface, set up arc groove, the fixed frame of setting in the backup pad top that are used for placing the ring flange in the backup pad and vertical telescopic cylinder who sets up on fixed frame, telescopic cylinder's piston rod sets up vertically downwards, the below of flange anchor clamps is equipped with the lifting unit who is used for adjusting flange anchor clamps and goes up and down.

Through adopting above-mentioned technical scheme, when welding the denitration spray gun, utilize flange anchor clamps to vertically press from both sides the dress fixed with the ring flange for the axis of ring flange keeps the level, specifically for with the vertical placing of ring flange in the circular arc groove, start the vertical direction of telescopic cylinder support the ring flange can tightly. Then, an operator respectively welds the inner layer pipe, the middle layer pipe and the outer layer pipe of the arc elbow at corresponding positions of the vertical side face of the flange plate. Then horizontally placing the inner layer pipe of the straight pipe on a straight pipe clamp for fixing, adjusting the lifting assembly to enable the axis of the arc-shaped elbow to coincide with the axis of the inner layer pipe of the straight pipe, and then welding the inner layer pipe of the arc-shaped elbow and the inner layer pipe of the straight pipe; treat that the inlayer pipe welding accomplishes the back, start lifting unit, drive ring flange and inlayer pipe rise, then establish the middle level pipe box of straight tube in the inlayer outside of tubes, because the length of inlayer pipe is greater than the length of intermediate level pipe, so operating personnel can hold up the other end of inlayer pipe, guarantee that inlayer pipe level sets up, make the intermediate level pipe of arc elbow and the coaxial setting of the intermediate level pipe of straight tube, then carry out the welding between the intermediate level pipe of arc elbow intermediate level pipe and straight tube, according to above-mentioned step, the welding of outer pipe is carried out at last. Make convenient the centre gripping of carrying on of ring flange fixed through flange anchor clamps, utilize lifting unit for during the welding, arc elbow and straight tube remain the axiality throughout, convenient welding has improved welded accuracy and efficiency.

Preferably, the lifting assembly comprises a lifting plate horizontally arranged below the supporting plate, a hydraulic cylinder arranged below the lifting plate and a guide column vertically penetrating through the lifting plate, the guide column is provided with a plurality of guide columns, and a piston rod of the hydraulic cylinder is vertically arranged upwards.

Through adopting above-mentioned technical scheme, a concrete structure of lifting unit is provided, during the use, starts the pneumatic cylinder, drives the vertical direction motion of lifter plate, and then drives the vertical direction motion of backup pad, further drives the vertical direction motion of ring flange and arc elbow. The lifting assembly is simple in mechanism and convenient to control.

Preferably, the one end that flange anchor clamps were kept away from to the straight pipe anchor clamps that lie in on the workstation is equipped with supplementary lifting unit, supplementary lifting unit is including setting up the auxiliary cylinder on the workstation and setting up the bearing piece on auxiliary cylinder top, the vertical upwards setting of piston rod of auxiliary cylinder.

Through adopting above-mentioned technical scheme, after welding between the inlayer pipe of inlayer pipe and the arc elbow of straight tube, the middle level pipe of straight tube needs the cover to establish, there is not the bearing medium this moment between middle level pipe and the inlayer pipe, so the inlayer pipe can be crooked, because the length of inlayer pipe is greater than the inlayer pipe, utilize lifting unit and supplementary lifting unit to bear the inlayer pipe of arc elbow and straight tube respectively, make the axis of arc elbow and the axis of the inlayer pipe of straight tube keep the level, and then guarantee that the middle level pipe of arc elbow is coaxial with the middle level pipe holder of straight tube, and then make things convenient for the welding.

Preferably, the bottom surface of the arc groove is provided with a first limiting groove, and the thickness of the first limiting groove is equal to that of the flange plate.

By adopting the technical scheme, one part of the bottom of the flange plate is positioned in the first limiting groove, so that the stability of the flange furniture in clamping and fixing the flange plate is improved, the displacement error generated in the welding process is reduced, and the welding precision is improved.

Preferably, the end of the piston rod of the telescopic cylinder is provided with an arc chuck, the bottom surface of the arc chuck is provided with a second limiting groove matched with the flange plate, and the thickness of the second limiting groove is equal to that of the flange plate.

Through adopting above-mentioned technical scheme, circular arc chuck and second spacing groove have increased the area of contact between telescopic cylinder piston rod and the ring flange to further improved telescopic cylinder to the fixed action of ring flange, improved the welded precision.

Preferably, the vertical locking piece that is equipped with on the circular arc chuck, backup pad top surface length direction's both ends are equipped with the locking groove, the vertical joint locking groove setting of locking piece.

Through adopting above-mentioned technical scheme, when the vertical direction mounting flange of telescopic cylinder, the vertical joint of locking block advances to lock the inslot, further improves telescopic cylinder mounting flange's stability, has further improved welded stability, improves welding precision.

Preferably, the straight pipe clamp comprises a main support frame fixedly arranged on the workbench and close to one side of the support plate and an auxiliary support frame arranged on one side of the main support frame, and the auxiliary support frame is arranged on the workbench in a sliding mode along the length direction of the workbench.

By adopting the technical scheme, the distance between the auxiliary supporting frame and the main supporting frame can be adjusted, so that the clamping length of the straight pipe clamp can be changed, the straight pipes with different lengths can be clamped by the straight pipe clamp, and the adaptability of the straight pipe clamp is improved.

Preferably, the main support frame and the auxiliary support frame are both provided with clamping assemblies, each clamping assembly comprises a support beam arranged on the main support frame and the auxiliary support frame respectively and a clamping cylinder arranged on the support beam, and a piston rod of each clamping cylinder is arranged vertically downwards.

By adopting the technical scheme, the stability of the straight pipe during welding is improved, the welding precision is further improved, and the welding quality is improved.

Preferably, the end parts of the piston rods of the clamping cylinders are provided with arc-shaped plates.

By adopting the technical scheme, the contact area between the piston rod of the clamping cylinder and the outer side wall of the straight pipe is increased, the limiting effect of the clamping cylinder on a straight pipe clamp is further increased, the straight pipe in the welding process is more stable, and the welding quality is improved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the flange is conveniently fixed by arranging the flange clamp, so that an operator can conveniently weld the arc-shaped elbow to the flange plate in advance, the straight pipe clamp is arranged, the straight pipe is conveniently erected and fixed to be conveniently welded with the other end of the arc-shaped elbow, the lifting assembly is arranged below the flange clamp, so that flange furniture can be lifted, the axial line of the straight pipe can be matched by adjusting the height of the flange clamp after the flange plate and the arc-shaped elbow are welded, the welding process is more convenient and accurate, and the welding quality and efficiency are improved;

2. by arranging the first limiting groove and the second limiting groove, the locking block is in inserting fit with the locking groove, so that the flange plate is more stable when being fixed, the welding stability between the arc-shaped elbow and the flange plate is improved, and the welding quality is improved;

3. by arranging the auxiliary lifting assembly, the inner layer pipe, the middle layer pipe and the outer layer pipe of the straight pipe are kept in a horizontal state during welding, so that manual straight pipe supporting is omitted, and the welding efficiency and the welding precision are improved;

4. the straight pipe clamp is set as the main support frame and the auxiliary support frame, and the position of the auxiliary support frame is adjustable, so that the straight pipe clamp can clamp and fix straight pipes with different lengths, and the applicability of the welding tool is improved.

Drawings

FIG. 1 is a background art diagram;

FIG. 2 is a schematic view of the overall structure of the welding tool;

FIG. 3 is a schematic view of the overall structure of the welding tool from another view;

FIG. 4 is a schematic view of the flange clamp and the lifting assembly;

fig. 5 is a partially enlarged view of a portion a in fig. 4.

Description of reference numerals: 1. a work table; 2. a straight pipe clamp; 21. a main supporting frame; 22. an auxiliary support frame; 221. a T-shaped slot; 3. a flange clamp; 31. a support plate; 32. an arc groove; 33. a fixed frame; 34. a telescopic cylinder; 4. a lifting assembly; 41. a lifting plate; 42. a hydraulic cylinder; 43. a guide post; 5. an auxiliary lifting assembly; 51. an auxiliary cylinder; 52. a bearing block; 6. a first limit groove; 7. a circular arc chuck; 8. a second limit groove; 9. a locking block; 10. a locking groove; 11. a clamping assembly; 111. a support beam; 112. a clamping cylinder; 12. an arc-shaped plate; 13. a groove; 50. an arc-shaped elbow; 60. a flange plate; 70. a straight tube.

Detailed Description

The present application is described in further detail below with reference to figures 1-5.

Referring to fig. 2 and fig. 3, a welding fixture for a denitration spray gun is disclosed in an embodiment of the present application. The welding frock includes workstation 1 of the rectangle form of level setting, and the below of workstation 1 is equipped with a plurality of supporting legs that are used for the support. A straight pipe clamp 2 for horizontally clamping the straight pipe 70 and a flange clamp 3 provided at one end in the longitudinal direction of the straight pipe clamp 2 are provided on the upper surface of the table 1. Wherein when the flange fixture 3 clamps the flange 60, the axis of the flange 60 is horizontal.

Referring to fig. 3, the straight pipe clamp 2 includes a main support frame 21 fixedly disposed on the upper surface of the worktable 1 and an auxiliary support frame 22 disposed on one side of the main support frame 21, the main support frame 21 and the auxiliary support frame 22 are both H-shaped, a connecting line between centers of the main support frame 21 and the auxiliary support frame 22 is parallel to the length direction of the worktable 1, and the straight pipe 70 is horizontally disposed on cross beams of the main support frame 21 and the auxiliary support frame 22. Be equipped with the T-shaped piece at auxiliary stay frame 22's lower surface, the both sides parallel that lie in straight tube anchor clamps 2 length direction at the upper surface of workstation 1 are equipped with two T-shaped grooves 221, sliding fit between T-shaped groove 221 and the T-shaped piece, thereby realize auxiliary stay frame 22 through the function that slides the setting along workstation 1's length direction, and then make the distance between auxiliary stay frame 22 and the main tributary strut 21 can convenient regulation, finally realized the length adjustment of straight tube anchor clamps 2, so that adapt to the clamp dress of different length dimension's straight tube 70.

Referring to fig. 3, the main support frame 21 and the auxiliary support frame 22 are both provided with a clamping assembly 11, the clamping assembly 11 includes a support beam 111 horizontally integrally connected to the top ends of the main support frame 21 and the auxiliary support frame 22, respectively, and a clamping cylinder 112 vertically fixed on the support beam 111, and a piston rod of the clamping cylinder 112 is vertically arranged downward. The arc-shaped plate 12 is fixedly connected to the bottom end of the piston rod of the clamping cylinder 112, so that the stability of the clamping cylinder 112 in clamping a workpiece is improved.

Referring to fig. 3 and 4, one end of the workbench 1 in the length direction of the straight pipe clamp 2 is provided with a flange clamp 3, the flange clamp 3 comprises a support plate 31 vertically and fixedly arranged on the upper surface of the workbench 1, an arc groove 32 arranged on the support plate 31 and used for placing a flange plate 60, a fixed frame 33 arranged above the support plate 31 and a telescopic cylinder 34 vertically and fixedly connected to the fixed frame 33, and a piston rod of the telescopic cylinder 34 is vertically arranged downwards.

Referring to fig. 3 and 4, a lifting assembly 4 for adjusting the lifting of the flange clamp 3 is provided below the flange clamp 3. Lifting unit 4 includes that the level sets up lifter plate 41 in backup pad 31 below, sets up the pneumatic cylinder 42 in lifter plate 41 below and the vertical guide post 43 that runs through lifter plate 41 and set up, specifically is offered at workstation 1 upper surface and is used for lifter plate 41 to carry out the recess 13 that goes up and down, at the equal vertical fixedly connected with guide post 43 in the bottom surface four corners of recess 13, pneumatic cylinder 42 fixed connection is in the bottom surface of workstation 1 to the piston rod of pneumatic cylinder 42 is vertical upwards to be set up.

Referring to fig. 3, an auxiliary lifting assembly 5 is arranged at one end, far away from the flange clamp 3, of the straight pipe clamp 2 on the workbench 1, the auxiliary lifting assembly 5 comprises an auxiliary cylinder 51 detachably arranged on the workbench 1 and a bearing block 52 fixedly connected to the top end of the auxiliary cylinder 51, a piston rod of the auxiliary cylinder 51 is vertically and upwardly arranged, the auxiliary cylinder 51 is directly placed on the workbench 1 when in use, and the auxiliary cylinder 51 can be moved to different positions. When welding arc elbow 50 and the middle level pipe of straight tube 70, utilize lifting unit 4 and supplementary lifting unit 5 to bear the inlayer pipe of arc elbow 50 and straight tube 70 respectively for the axis of arc elbow 50 keeps the level with the axis of the inlayer pipe of straight tube 70, and then guarantees coaxially between the middle level pipe of arc elbow 50 and straight tube 70, and then makes things convenient for the welding.

Referring to fig. 4, open at the bottom surface of arc groove 32 has first spacing groove 6, the thickness of first spacing groove 6 equals the thickness of ring flange 60, at telescopic cylinder 34's piston rod end fixedly connected with circular arc chuck 7, second spacing groove 8 has been seted up to the bottom surface of circular arc chuck 7, second spacing groove 8 matches the setting of ring flange 60, first spacing groove 6 and second spacing groove 8 all establish to the half slot, the diameter of first spacing groove 6 and second spacing groove 8 equals the diameter of ring flange 60. When the flange 60 is clamped, the flange 60 is vertically placed in the first limit groove 6, and the edge portion of the upper semicircle of the flange 60 is positioned in the second limit groove 8.

Referring to fig. 5, a locking block 9 is fixedly connected to the bottom of the arc chuck 7 in a vertical manner, locking grooves 10 are formed at the two ends of the top surface of the support plate 31 in the length direction, and the locking block 9 is vertically clamped and locked with the locking grooves 10. Thereby improving the stability of the flange 60 when it is clamped.

The implementation principle of the welding frock of this application embodiment a denitration spray gun does: the welding process of the denitration spray gun specifically comprises the following steps:

firstly, vertically clamping and fixing a flange plate 60 by using a flange clamp 3 to enable the axis of the flange plate 60 to be horizontal, specifically, vertically placing the flange plate 60 in a first limiting groove 6, starting a telescopic cylinder 34 to enable an arc chuck 7 to vertically move downwards, and finally enabling the top end of the flange plate 60 to abut against a second limiting groove 8;

secondly, horizontally placing the inner layer pipe of the straight pipe 70 on a straight pipe clamp 2 for fixing, and adjusting a lifting assembly 4, wherein an operator needs to confirm the size before welding the inner layer pipe of the arc-shaped elbow 50 on a flange plate 60, specifically, one end of the inner layer pipe of the arc-shaped elbow 50 is attached to the corresponding position of the flange plate 60, and the lifting assembly 4 is adjusted to ensure that the other end of the inner layer pipe of the arc-shaped elbow 50 is coaxial with the inner layer pipe of the straight pipe 70, at the moment, the inner layer pipe of the arc-shaped elbow 50 can be welded on the flange plate 60, and then, the middle layer pipe and the outer layer pipe of the arc-shaped elbow 50 are sequentially welded on the corresponding positions of the vertical side surface of the flange;

thirdly, welding the middle-layer pipe of the arc elbow 50 and the middle-layer pipe of the straight pipe 70; after welding the inner layer pipe between the arc elbow 50 and the straight pipe 70, starting the lifting assembly 4 to drive the flange plate 60 and the inner layer pipe of the arc elbow 50 to ascend, and sleeving the middle layer pipe of the straight pipe 70 outside the circumference of the inner layer pipe of the straight pipe 70, wherein at the moment, because the length of the inner layer pipe of the straight pipe 70 is greater than that of the middle layer pipe, an operator needs to adjust the position of the auxiliary lifting assembly 5, so that the auxiliary lifting assembly 5 lifts one end of the inner layer pipe of the straight pipe 70 in the length direction, the inner layer pipe is ensured to be horizontal, the middle layer pipe of the arc elbow 50 and the middle layer pipe of the straight pipe 70 are coaxially arranged, and then welding between the middle layer pipe of the arc elbow 50 and the middle layer pipe of the straight pipe 70 is carried out;

and fourthly, welding the outer layer pipe according to the step of the third step.

When the middle-layer pipe and the outer-layer pipe are welded, the clamping assembly 11 needs to be adjusted to clamp and fix the middle-layer pipe and the outer-layer pipe of the straight pipe 70 due to the change of the diameter of the outer-layer pipe. After the final welding is finished, the flange clamp 3 is dismantled, and the welded denitration spray gun can be taken out along the length direction of the denitration spray gun.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a welding frock of denitration spray gun, includes workstation (1), its characterized in that: a straight pipe clamp (2) used for horizontally clamping a straight pipe (70) and a flange clamp (3) arranged at one end of the straight pipe clamp (2) in the length direction and used for vertically clamping a flange plate (60) are arranged on the workbench (1); flange anchor clamps (3) include vertical fixed setting in backup pad (31) of workstation (1) upper surface, set up arc groove (32) that are used for placing ring flange (60) on backup pad (31), set up fixed frame (33) and vertical telescopic cylinder (34) of setting on fixed frame (33) in backup pad (31) top, the vertical downward setting of piston rod of telescopic cylinder (34), the below of flange anchor clamps (3) is equipped with lifting unit (4) that are used for adjusting flange anchor clamps (3) and go up and down.

2. The denitration spray gun welding tool of claim 1, characterized in that: the lifting assembly (4) comprises a lifting plate (41) horizontally arranged below the supporting plate (31), a hydraulic cylinder (42) arranged below the lifting plate (41) and a guide column (43) vertically penetrating through the lifting plate (41), wherein a plurality of guide columns (43) are arranged, and a piston rod of the hydraulic cylinder (42) is vertically arranged upwards.

3. The denitration spray gun welding tool of claim 2, characterized in that: one end of the workbench (1) which is located at the straight pipe clamp (2) and is far away from the flange clamp (3) is provided with an auxiliary lifting assembly (5), the auxiliary lifting assembly (5) comprises an auxiliary cylinder (51) arranged on the workbench (1) and a bearing block (52) arranged at the top end of the auxiliary cylinder (51), and a piston rod of the auxiliary cylinder (51) is vertically and upwards arranged.

4. The denitration spray gun welding tool of claim 1, characterized in that: first spacing groove (6) have been seted up to circular arc groove (32) bottom surface, the thickness of first spacing groove (6) equals the thickness of ring flange (60).

5. The denitration spray gun welding tool of claim 4, characterized in that: the tip of telescopic cylinder (34) piston rod is equipped with circular arc chuck (7), second spacing groove (8) of matching ring flange (60) are seted up to circular arc chuck (7) bottom surface, the thickness of second spacing groove (8) equals the thickness of ring flange (60).

6. The denitration spray gun welding tool of claim 5, characterized in that: the vertical locking piece (9) that is equipped with on circular arc chuck (7), backup pad (31) top surface length direction's both ends are equipped with locking groove (10), the vertical joint of locking piece (9) locking groove (10) set up.

7. The denitration spray gun welding tool of claim 1, characterized in that: the straight pipe clamp (2) comprises a main support frame (21) fixedly arranged on the workbench (1) and close to one side of a support plate (31), and an auxiliary support frame (22) arranged on one side of the main support frame (21), wherein the auxiliary support frame (22) is arranged on the workbench (1) in a sliding mode along the length direction of the workbench (1).

8. The denitration spray gun welding tool of claim 7, characterized in that: the clamping device is characterized in that clamping assemblies (11) are arranged on the main supporting frame (21) and the auxiliary supporting frame (22), each clamping assembly (11) comprises a supporting beam (111) and a clamping cylinder (112), the supporting beams are arranged on the main supporting frame (21) and the auxiliary supporting frame (22) respectively, the clamping cylinders (112) are arranged on the supporting beams (111), and piston rods of the clamping cylinders (112) are arranged vertically downwards.

9. The denitration spray gun welding tool of claim 8, characterized in that: the end part of the piston rod of the clamping cylinder (112) is provided with an arc-shaped plate (12).