CN211028810U

CN211028810U - Tool for welding circumferential weld of flange

Info

Publication number: CN211028810U
Application number: CN201921724314.0U
Authority: CN
Inventors: 马毅
Original assignee: Qingdao Ruichen Power Environmental Protection Equipment Co ltd
Current assignee: Qingdao Ruichen Power Environmental Protection Equipment Co ltd
Priority date: 2019-10-15
Filing date: 2019-10-15
Publication date: 2020-07-17
Anticipated expiration: 2029-10-15

Abstract

The utility model discloses a frock of welded flange circumference welding seam, including base and workstation, the workstation is used for supporting and the location treats welded flange, installation gyration support bearing on the base, gyration support bearing top installation workstation, gyration support bearing's inner ring is fixed with the base, and gyration support bearing's outer loop and workstation fixed connection, gyration support bearing's outer loop side-mounting actuating mechanism, through actuating mechanism drives gyration support bearing's outer loop and workstation and rotates, set up the distance sensor who treats welded flange diameter on the workstation, distance sensor and controller signal input part are connected, controller signal output part with actuating mechanism signal input part connects. Through the utility model discloses can reduce the welding segmentation of flange circumference welding seam to can reduce the time that the welding seam connects the processing of polishing, improve flange welding speed.

Description

Tool for welding circumferential weld of flange

Technical Field

The utility model belongs to the auxiliary processing equipment relates to flange welding anchor clamps's institutional advancement, especially relates to the frock of welding flange circumferential weld.

Background

After the flange is assembled, welding of inner and outer fillet welds needs to be completed, because the flange is a circumferential weld, multiple times of welding needs to be performed according to the size of the flange, and the welding needs to be performed for three times (section) generally when the diameter is within 1.5 m; the diameter of the flange is more than 1.5m, and welding is carried out for at least five times (sections).

Firstly, joints are more, each joint needs to be carefully polished before being welded, otherwise, internal defects exist, and much working time is needed for polishing the joints, even the welding time exceeds the welding time of the section; secondly, the joint is easy to have defects, the appearance quality is poor, the welded joint needs to be corrected through a plurality of procedures such as polishing, repair welding and re-polishing, and the problems of time and labor waste exist.

The existing rotary table tool for flange welding can only clamp a flange with the diameter of below 400mm, and the circumferential weld joint welding of the flange with larger diameter can only adopt the mode that the flange is fixed and a welding gun moves, so that the improvement of the weld joint quality and the welding efficiency is not facilitated. In addition, because the welding time of the welding seam has corresponding requirements, the rotating speed of the existing rotary table tool cannot be adjusted according to the diameter of the flange, namely, the welding quality of the flanges with different diameters cannot be effectively guaranteed under the condition of the same rotating speed.

If Chinese patent (No. CN205096773U) discloses a "simple pipeline and flange welding tool", the tool comprises a support, a bearing seat is fixed on a working table of the support through a bearing seat bolt, a bearing is installed on the bearing seat, a stepped shaft is fixedly installed in a bearing inner sleeve, a lower turntable is fixedly installed at the lower end of the stepped shaft after penetrating through the working table, an upper tray is fixedly installed at the upper top end of the stepped shaft through an upper tray bolt, a spiral ejector rod is rotatably installed on the working table on one side of the stepped shaft, a rubber block is fixedly installed at the upper end of the spiral ejector rod, the rubber block is in contact with the lower surface of the upper tray, a lock nut is rotatably installed on the spiral ejector rod, and an adjusting hand wheel is fixedly installed at the lower end of the spiral ejector rod. Provides good conditions for the construction and erection of the natural pipelines.

The tool can still be applied to flange welding with a small range of diameters, and meanwhile, the rotating speed of the tool cannot be automatically adjusted according to the sizes of flanges with different diameters.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a frock of welded flange circumferential weld for solve current revolving stage frock can only the flange of the less diameter of centre gripping, and the problem that the rotational speed can't carry out automatically regulated according to flange diameter size.

In order to realize the utility model discloses an aim at, adopt following technical scheme:

the tool for welding the circumferential weld of the flange comprises a base and a workbench, wherein the workbench is used for supporting and positioning the flange to be welded, a rotary supporting bearing is installed on the base, the workbench is installed above the rotary supporting bearing, an inner ring of the rotary supporting bearing is fixed with the base, an outer ring of the rotary supporting bearing is fixedly connected with the workbench, a driving mechanism is installed on the side face of the outer ring of the rotary supporting bearing, the driving mechanism drives the outer ring of the rotary supporting bearing and the workbench to rotate, a distance sensor for measuring the diameter of the flange to be welded is arranged on the workbench and connected with a signal input end of a controller, and a signal output end of the controller is connected with the signal input end of the driving mechanism.

In order to further improve the utility model discloses an effect can also adopt following technical scheme:

according to the tool for welding the circumferential weld of the flange, the driving mechanism comprises a driving gear and a variable frequency motor, the driving gear is meshed with an outer ring of a rotary supporting bearing with external teeth, the variable frequency motor is vertically fixed with the base, and the driving gear is installed on a rotating shaft of the variable frequency motor.

According to the tool for welding the circumferential weld of the flange, the workbench is provided with the lengthened frame for expanding the diameter range of the flange to be welded.

According to the tool for welding the circumferential weld of the flange, the workbench is composed of at least three support rods, one ends of the three support rods are fixedly connected and overlapped with the circle center of the rotary supporting bearing, and the other ends of the three support rods are free ends.

According to the tool for welding the circumferential weld of the flange, the free end of the supporting rod is provided with the extension rod through the clamping groove or the connecting piece, and the extension rod comprises the extension frame.

According to the tool for welding the circumferential weld of the flange, the length of the supporting rod is 0.5-1 meter, and the length of the extension rod is 0.8-1.5 meters.

According to the tool for welding the circumferential weld of the flange, the support rod is provided with scales, the support rod is provided with the positioning seat for adjusting the position of the flange to be welded, and the positioning seat can slide on the support rod.

According to the tool for welding the circumferential weld of the flange, the supporting rod and the extension rod are respectively provided with the plurality of positioning holes, the positioning holes are used for installing the fixing piece, the fixing piece comprises the short rod, the short rod is provided with the fixing nut, the clamping block, the adjusting nut and the eccentric wheel from bottom to top, the fixing nut is matched with the clamping block and used for fixedly installing the positioning holes and the short rod, and the adjusting nut is used for adjusting the relative position of the eccentric wheel on the short rod.

Compared with the prior art, the beneficial effects of the utility model are that:

through the utility model discloses can reduce the welding segmentation of flange circumference welding seam to can reduce the time that the welding seam connects the processing of polishing, improve flange welding speed. The workstation that sets up can be applicable to the flange within 1 meter of diameter, when supporting use extension frame, can be applicable to the flange within 2.1 meters of diameter, consequently can greatly increased welding flange circumference welding seam's application scope, improves flange welded quality and welding efficiency. The lengthening frame is of a folding or fast-assembling structure, the lengthening frame is convenient to mount and fix with the workbench, meanwhile, in order to reduce the weight of the lengthening frame and the workbench, a frame type structure is adopted, and the cost and the power consumption are reduced. The distance sensor is arranged on the workbench, the diameter signal of the flange is input into the controller, and then the rotating speed of the driving mechanism can be directly controlled, so that the rotating speed regulation of the workbench with different diameters of the flange is realized. Meanwhile, in order to accurately adjust the alignment of the center of a circle of the flange and the workbench, a positioning seat is arranged on a supporting rod of the workbench, and further the distance sensor can be installed on the positioning seat, so that the center of a circle of the workbench and the center of a circle of the flange are adjusted to ensure superposition, and the flange is favorable for uniform weight during circumferential weld seam welding.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a top view of FIG. 1;

fig. 3 is an enlarged view of the fixing member shown in fig. 2.

Reference numerals: 1-base, 2-workbench, 3-rotary support bearing, 4-driving mechanism, 5-variable frequency motor, 6-extension rod, 7-flange, 8-controller, 9-positioning hole, 10-fixing piece, 101-short rod, 102-fixing nut, 103-clamping block, 104-adjusting nut and 105-eccentric wheel.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1, the tool for welding the circumferential weld of the flange disclosed in this embodiment can reduce the welding segmentation of the circumferential weld of the flange, save the time for polishing the weld joint, and improve the welding speed of the flange.

This frock includes base 1 and workstation 2, and base 1 establishes in workstation 2 below, for frame rack construction, and workstation 2 is used for supporting and the location treats welded flange 7, installs slewing bearing 3 between base 1 and the workstation 2, and slewing bearing 3 includes inner ring and outer loop, but relative rotation between inner ring and the outer loop. The inner ring of the rotary support bearing 3 is fixed with the base 1, and the outer ring thereof is fixedly connected with the workbench 2.

As shown in fig. 1, in this embodiment, a driving mechanism 4 is installed on a side surface of an outer ring of a slewing bearing 3, the outer ring of the slewing bearing 3 and a workbench 2 are driven to rotate by the driving mechanism 4, a distance sensor for measuring a diameter of a flange 7 is arranged on the workbench 2, the distance sensor is connected with a signal input end of a controller 8, and a signal output end of the controller 8 is connected with a signal input end of the driving mechanism 4. Set up distance sensor on workstation 2, with flange 7 diameter signal input to controller 8 in, and then can direct control actuating mechanism 4's rotational speed, realize the different workstation 2 rotational speed regulation of flange 7 diameter.

Wherein, because the signal that needs control and processing is less, the controller can adopt AT89S51 singlechip to construct, disposes switch and start-stop button.

Continuing to refer to fig. 1, the driving mechanism 4 comprises a driving gear 4 and a variable frequency motor 5, the driving gear 4 is meshed with an outer ring of a rotary supporting bearing 3 with external teeth, the variable frequency motor 5 is vertically fixed with the base 1, and the driving gear 4 is installed on a rotating shaft of the variable frequency motor 5.

As shown in fig. 2, in the present embodiment, an extension bracket for extending the diameter range of the support flange 7 is provided on the table 2. The extension frame is of a folding or fast-assembling structure, the extension frame is convenient to mount and fix with the workbench 2, meanwhile, in order to reduce the weight of the extension frame and the workbench 2, a frame type structure is adopted, and the cost and the power consumption are reduced.

Specifically, the workbench 2 is composed of at least three support rods, one ends of the three support rods are fixedly connected and overlapped with the circle center of the rotary support bearing 3, and the other ends of the three support rods are free ends. The free end of the supporting rod is provided with an extension rod 6 through a clamping groove or a connecting piece, and the extension frame is formed by a plurality of extension rods.

The length of the supporting rod is 0.5-1 meter, and the length of the extension rod is 0.8-1.5 meters. The workstation 2 that sets up can be applicable to the flange 7 within 1 meter of diameter, when supporting use extension frame, can be applicable to the flange 7 within 2.1 meters of diameter, consequently can greatly increase the application scope of flange 7 circumference welding seam, improves flange 7 welded quality and welding efficiency.

The support rod is provided with scales, a positioning seat for adjusting the position of the flange 7 is arranged on the support rod, and the positioning seat can slide on the support rod. The accurate adjustment flange 7 aligns with the centre of a circle of workstation 2, sets up the positioning seat on the bracing piece of workstation 2 to further can install distance sensor on the positioning seat, the coincide is guaranteed with the flange 7 centre of a circle to the centre of a circle of adjustment workstation 2, and weight is unified when being favorable to flange 7 circumference welding seam to weld.

In addition to using the positioning seat to align and position the center of the flange 7, as shown in fig. 2 and 3, a plurality of positioning holes 9 are formed in the support rod and the extension rod, the positioning holes are used for installing the fixing member 10, the fixing member 10 includes a short rod 101, a fixing nut 102, a clamping block 103, an adjusting nut 104 and an eccentric wheel 105 are installed on the short rod 101 from bottom to top, the fixing nut 102 is matched with the clamping block 103 to be used for fixedly installing the positioning holes 9 and the short rod 101, and the adjusting nut 104 is used for adjusting the relative position of the eccentric wheel 105 on the short rod 101. The positioning hole 9 and the fixing piece 10 are adopted to align the circle centers of the flanges 7 conveniently, the specification of the flanges 7 can be pre-estimated, then the short rod 101 is inserted into the positioning hole 9, the short rod 101 is fixed with the positioning hole 9 through the fixing nut 102, the position of the eccentric wheel 105 is adjusted, the accuracy is poor, and meanwhile, the adjusting nut 104 is arranged below the eccentric wheel 105 for conveniently adjusting the height of the eccentric wheel 105.

When this embodiment uses, polish, assemble the back when flange 7, judge whether need use the extension frame according to flange 7 diameter, if need not use, directly place flange 7 on workstation 2, make it concentric with workstation 2 according to the adjustment of the concentric circles vestige on workstation 2 flange 7 position. The distance sensor detects and obtains the diameter data of the flange 7, and the controller 8 outputs proper input frequency of the variable frequency motor 5 to complete the adjustment of the rotating speed of the workbench 2 by combining the common welding speed of the welding method, the transmission ratio of the two gears and other parameter settings. Then, the variable frequency motor 5 is started, and the welding gun is manually held to complete the welding work of the welding seam.

The technical contents not described in detail in the present invention are all known techniques.

Claims

1. The tool for welding the circumferential weld of the flange comprises a base and a workbench, wherein the workbench is used for supporting and positioning the flange to be welded, and the tool is characterized in that a rotary supporting bearing is installed on the base, the workbench is installed above the rotary supporting bearing, an inner ring of the rotary supporting bearing is fixed with the base, an outer ring of the rotary supporting bearing is fixedly connected with the workbench, a driving mechanism is installed on the side face of the outer ring of the rotary supporting bearing, the driving mechanism drives the outer ring of the rotary supporting bearing to rotate with the workbench, a distance sensor for measuring the diameter of the flange to be welded is arranged on the workbench and is connected with a signal input end of a controller, and a signal output end of the controller is connected with the signal input end of the driving mechanism.

2. The tool for welding the circumferential weld of the flange according to claim 1, wherein the driving mechanism comprises a driving gear and a variable frequency motor, the driving gear is meshed with an outer ring of a rotary support bearing with external teeth, the variable frequency motor is vertically fixed with the base, and the driving gear is installed on a rotating shaft of the variable frequency motor.

3. A tool for welding a circumferential weld of a flange according to claim 1, wherein the workbench is provided with a lengthened frame for expanding the diameter range of the flange to be welded.

4. The tool for welding the circumferential weld of the flange according to claim 3, wherein the workbench is composed of at least three support rods, one ends of the three support rods are fixedly connected and overlapped with the circle center of the rotary support bearing, and the other ends of the three support rods are free ends.

5. A tool for welding a circumferential weld of a flange according to claim 4, wherein the free end of the support rod is provided with an extension rod through a clamping groove or a connecting piece, and the extension rod comprises the extension frame.

6. The tool for welding the circumferential weld of the flange according to claim 5, wherein the length of the supporting rod is 0.5-1 m, and the length of the extension rod is 0.8-1.5 m.

7. A tool for welding a circumferential weld of a flange according to claim 4, wherein the support rod is provided with scales, the support rod is provided with a positioning seat for adjusting the position of the flange to be welded, and the positioning seat can slide on the support rod.

8. The tool for welding the circumferential weld of the flange according to claim 5, wherein the supporting rod and the extending rod are respectively provided with a plurality of positioning holes, the positioning holes are used for installing a fixing piece, the fixing piece comprises a short rod, a fixing nut, a clamping block, an adjusting nut and an eccentric wheel are arranged on the short rod from bottom to top, the fixing nut is matched with the clamping block and used for fixedly installing the positioning holes and the short rod, and the adjusting nut is used for adjusting the relative position of the eccentric wheel on the short rod.