CN217647822U

CN217647822U - Standard knot welding tool

Info

Publication number: CN217647822U
Application number: CN202221537905.9U
Authority: CN
Inventors: 广少林; 王恒; 黄云初; 李丹; 李强
Original assignee: Zoomlion Construction Crane Co Ltd
Current assignee: Zoomlion Construction Crane Co Ltd
Priority date: 2022-06-17
Filing date: 2022-06-17
Publication date: 2022-10-25
Anticipated expiration: 2032-06-17

Abstract

The utility model discloses a standard festival welding frock, standard festival welding frock includes: the two main body frames are oppositely arranged and form a clamping space for accommodating a main chord of a standard knot, and each main body frame comprises a supporting bracket and a rotating frame which is arranged on the supporting bracket and can rotate relative to the supporting bracket; the positioning device is detachably mounted on one side of the clamping space, which faces the rotating frame, and comprises a plurality of positioning mechanisms for positioning and clamping the standard knots, and the positioning mechanisms are different in size and are used for positioning the standard knots with different section sizes. The utility model provides a standard festival welding frock passes through positioner and sets up the all inequality positioning mechanism of a plurality of sizes, but the different cross sectional dimension's of adaptation location main chord member, can be integrated with the welding frock of a plurality of different cross sectional dimension main chord members, has practiced thrift the input that the frock was equipped with, has also avoided the easy idle condition of welding frock.

Description

Standard knot welding tool

Technical Field

The utility model belongs to the technical field of the welding frock, especially, relate to a standard festival welding frock.

Background

The standard section is used as a large structural member to be connected with a transition section, a supporting leg and the like, and is used as an important part in a tower crane and is a main body structure of a tower body of the tower crane. The existing integral welding tool for the standard knot belongs to a special tool, and causes waste of a site and cost increase. Because current standard festival integral welding frock can only be applicable to the main chord member of a size standard festival, can not satisfy the user demand that the whole assembly welding of multiple standard festival, lead to design, preparation cycle length, frock cost of manufacture big, because the standard festival is of more kind, place multiple standard festival integral welding frock and occupy the workshop place, and easily cause the frock to be idle.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a standard festival welding frock aims at solving among the prior art big and the easy idle technical problem of standard festival welding frock cost of manufacture.

In order to achieve the above object, the utility model provides a standard festival welding frock, standard festival welding frock includes: the two main body frames are oppositely arranged and form a clamping space for accommodating a main chord of a standard knot, and each main body frame comprises a supporting bracket and a rotating frame which is arranged on the supporting bracket and can rotate relative to the supporting bracket; the positioning device is detachably mounted on one side of the clamping space, which faces the rotating frame, and comprises a plurality of positioning mechanisms for positioning and clamping the standard knots, and the positioning mechanisms are different in size and are used for positioning the standard knots with different section sizes.

In an embodiment of the present invention, the positioning mechanism includes: the driving assembly comprises a driving rotating wheel and a driving screw rod penetrating through the rotating frame, and the driving rotating wheel is used for driving the driving screw rod to rotate; the transmission positioning assembly comprises a push-pull plate and a plurality of positioning pins which are arranged on the rotating frame in a penetrating mode at intervals side by side, the push-pull plate is sleeved outside the driving screw rod and is in threaded connection with the driving screw rod, and the push-pull plate is used for being matched with the driving screw rod and synchronously driving the plurality of positioning pins to synchronously extend or contract relative to the clamping space frame.

In an embodiment of the present invention, the positioning mechanism further includes: the mounting shaft sleeve is mounted on the rotating frame, a bearing accommodating groove which is opened towards the driving rotating wheel and accommodates a transmission bearing is formed in the mounting shaft sleeve, and the transmission bearing is in transmission fit with the driving screw rod; the anti-falling cover is arranged at the opening and detachably connected with the mounting shaft sleeve.

The embodiment of the utility model provides an in, the drive lead screw is provided with the spacing section that compresses tightly that the cross-section is the step form, spacing compress tightly the section hold in the bearing holding tank and will the transmission bearing support tightly in bearing holding tank diapire.

In an embodiment of the present invention, the positioning mechanism further includes a screw guiding sleeve sleeved outside the driving screw and located between the mounting shaft sleeve and the push-pull plate.

The embodiment of the utility model provides an in, positioning mechanism still include with the locating pin corresponds the direction subassembly that sets up, the direction subassembly include the interval install in revolving frame's first axle sleeve and second axle sleeve, first axle sleeve with the second axle sleeve is located respectively the both sides of push-and-pull board, and respectively with the both ends direction cooperation of locating pin.

The embodiment of the utility model provides an in, positioning mechanism still including install in revolving frame has the lead screw end cover of oil cup, the lead screw end cover is located the transmission lead screw is kept away from the one end of drive runner, the oil cup be used for to transmission lead screw supplies lubricating oil.

The embodiment of the utility model provides an in, two revolving frame is rotational positioning frame and rotary clamping frame respectively, with the positioner that the rotational positioning frame corresponds is preliminary positioner, with the rotary clamping frame corresponds positioner is positioning clamping device, preliminary positioner's locating pin length is greater than positioning clamping device's locating pin length.

In an embodiment of the present invention, the corner of the rotating frame is provided with the positioning device, and the positioning device is a plurality of the positioning mechanism is arranged at intervals from the outer edge of the rotating frame to the inner center of the rotating frame according to the size of the size.

In an embodiment of the present invention, the main body frame further comprises a rotation shaft disposed on the top end of the supporting bracket and connected to the rotation shaft of the rotation bearing, and the rotation frame is connected to the rotation shaft of the supporting bracket.

Through the technical scheme, the embodiment of the utility model provides a standard festival welding tool has following beneficial effect:

two main part framves of standard festival welding frock set up along the horizontal direction relatively, and form the centre gripping space that holds standard festival main chord member, can stretch into the centre gripping space with different cross sectional dimensions's main chord member, make the one end of main chord member and the positioning mechanism location fit who corresponds the size among one of them side positioner, the other end location fit of the positioning mechanism who corresponds the size among the other one side positioner and main chord member, main chord member location centre gripping with corresponding size is in the centre gripping space, the accessible supports the relative rotation of support frame and rotates the swivel mount and carry out spin welding to main chord member. The utility model provides a standard festival welding frock passes through positioner and sets up the all inequality positioning mechanism of a plurality of sizes of dimensions, but the different cross sectional dimensions's of adaptation location main chord member can be integrated with the welding frock of a plurality of different cross sectional dimensions main chord members, has practiced thrift the input that the frock is equipped with, has also avoided the easy idle condition of welding frock.

Other features and advantages of the present invention will be described in detail in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide an understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention, but do not constitute a limitation of the invention. In the drawings:

fig. 1 is a schematic structural diagram of a standard knot welding tool according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a standard knot welding tool according to another embodiment of the present invention;

fig. 3 is a schematic structural diagram of a positioning mechanism of a standard knot welding tool according to yet another embodiment of the present invention.

Description of the reference numerals

Reference numerals	Name (R)	Reference numerals	Name(s)
				100	Standard knot welding tool	3112	Driving screw rod
1	Main body frame	3113	Spacing section that compresses tightly
				11	Support bracket	312	Transmission positioning assembly
12	Rotating frame	3121	Push-pull plate
				12a	Rotary positioning frame	3122	Locating pin
12b	Rotary clamping frame	313	Mounting shaft sleeve
				13	Rotary bearing	314	Transmission bearing
14	Rotating shaft	315	Anti-drop cover
				2	Clamping space	316	Screw rod guide sleeve
3	Positioning device	317	Guide assembly
				3a	Preliminary positioning device	3171	First shaft sleeve
3b	Positioning and clamping device	3172	Second shaft sleeve
				31	Positioning mechanism	318	Screw rod end cover
311	Drive assembly	3181	Oil cup
				3111	Driving wheel	200	Main chord member

Detailed Description

The following describes in detail embodiments of the present invention with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the present invention.

The standard knot welding frock according to the utility model discloses is described below with reference to the figure.

As shown in fig. 1 and fig. 2, in an embodiment of the present invention, a standard knot welding tool 100 is provided, wherein the standard knot welding tool 100 includes a positioning device 3 and two main body frames 1; the two main body frames 1 are oppositely arranged and form a clamping space 2 for accommodating a main chord member 200 of a standard knot, and each main body frame 1 comprises a supporting bracket 11 and a rotating frame 12 which is arranged on the supporting bracket 11 and can rotate relative to the supporting bracket 11; the positioning device 3 is detachably mounted on one side of the rotating frame 12 facing the clamping space 2, the positioning device 3 comprises a plurality of positioning mechanisms 31 for positioning and clamping the main chords 200, and the plurality of positioning mechanisms 31 are different in size so as to position the main chords 200 with different cross-sectional sizes.

The standard knot welding tool 100 in the embodiment is mainly used for positioning and clamping the main chord member 200 of the standard knot. In an embodiment, the positioning device 3 includes two positioning mechanisms 31 for positioning the 1.6m main chord 200 and the 1.8m main chord 200, respectively, the two positioning mechanisms 31 have sizes corresponding to the 1.6m main chord 200 and the 1.8m main chord 200, respectively, so as to meet the requirement of integral assembly welding of two standard sections with cross-sectional sizes of 1.6m and 1.8m, and the positioning device 3 can be mounted on the rotating frame 12 through the ear plate seat.

Two main body frame 1 of standard festival welding frock 100 set up along the horizontal direction relatively in this embodiment to form the centre gripping space 2 that holds standard festival main chord member 200, can stretch into centre gripping space 2 with main chord member 200 of different cross sectional dimensions, make the one end of main chord member 200 and the positioning mechanism 31 location fit of corresponding size in one of them side positioner 3, the other side positioning mechanism 31 of corresponding size and the other end location fit of main chord member 200 in positioner 3, the main chord member 200 location centre gripping of corresponding size is in centre gripping space 2, accessible rotates revolving frame 12 relative to support 11 and carries out the spin welding to main chord member 200. The standard knot welding tool 100 in the embodiment is provided with the plurality of positioning mechanisms 31 with different sizes through the positioning device 3, the main chords 200 with different cross-sectional dimensions can be positioned in an adaptive mode, the welding tools of the main chords 200 with different cross-sectional dimensions can be integrated, after the tool is assembled for one time, long-term use requirements of various standard knots can be met, investment of tool equipment is saved, the condition that the welding tools are easy to idle is also avoided, and the utilization efficiency of the standard knot welding tool 100 is improved.

As shown in fig. 3, the positioning mechanism 31 in the present embodiment includes a driving assembly 311 and a transmission positioning assembly 312; the driving assembly 311 includes a driving wheel 3111 and a driving screw 3112 penetrating the rotating frame 12, the driving wheel 3111 is configured to drive the driving screw 3112 to rotate; the transmission positioning assembly 312 includes a push-pull plate 3121 and a plurality of locating pins 3122 that wear to locate the rotating frame 12 side by side at an interval, and the push-pull plate 3121 is located outside the driving lead screw 3112 and is connected with driving lead screw 3112 screw thread in the cover, and the push-pull plate 3121 is used for cooperating with driving lead screw 3112 and drives a plurality of locating pins 3122 relatively to the synchronous stretching out or shrink of clamping space 2 frame in step. Further, the push-pull plate 3121 is vertically disposed, and a detachable connection mode in which the push-pull plate 3121 and a plurality of positioning pins 3122 are bolted may be adopted. The drive wheel 3111 and drive screw 3112 may be connected by a nut.

The driving wheel 3111 in this embodiment is located on one side of the rotating frame 12 away from the clamping space 2, the driving wheel 3111 can be driven to rotate manually or electrically, the push-pull plate 3121 is provided with trapezoidal threads in threaded fit with the driving screw stem 3112, the driving screw stem 3112 is driven to rotate by the driving wheel 3111, the push-pull plate 3121 can move along the extending direction of the driving screw stem 3112, so as to synchronously push or pull the positioning pins 3122 to extend or retract, and the positioning pins 3122 can extend into or separate from the main chord member 200, which is simple in structure and convenient to operate. When one of the dimension positioning mechanisms 31 and the corresponding dimension main chord 200 are used for positioning, the positioning pins 3122 of the remaining dimension positioning mechanisms 31 can be retracted to the initial position, thereby avoiding the interference between the positioning mechanisms 31.

In this embodiment, the positioning mechanism 31 further includes a mounting sleeve 313 and an anti-slip cover 315; the mounting sleeve 313 is mounted on the rotating frame 12, and is provided with a bearing receiving groove which is opened toward the driving wheel 3111 and receives the transmission bearing 314, and the transmission bearing 314 is in transmission fit with the driving screw 3112; the anti-slip cover 315 covers the opening and is detachably connected to the mounting boss 313. Through drive bearing 314 and drive lead screw 3112 transmission cooperation in this embodiment, enable drive lead screw 3112 and rotate the operation more stable to through installation axle sleeve 313 and the cooperation of anticreep lid 315, can avoid the condition that drive bearing 314 deviates from, improve positioning mechanism 31's structural stability. The tip of anticreep lid 315 can be provided with the spacing arch that supports tight drive bearing 314, and spacing arch stretches into in the bearing holding tank, with the groove lateral wall interference fit of bearing holding tank to support drive bearing 314 tightly in the tank bottom wall of bearing holding tank.

In an embodiment, in order to further improve the structural stability of the positioning mechanism 31, the driving screw 3112 is provided with a spacing pressing section 3113 having a step-shaped cross section, and the spacing pressing section 3113 is accommodated in the bearing accommodating groove and abuts the transmission bearing 314 against the bottom wall of the bearing accommodating groove. Through spacing section 3113 and the cooperation of drive bearing 314 of compressing tightly in this embodiment, can further avoid drive bearing 314 to deviate from the condition of frock, further improved structural stability.

Specifically, the positioning mechanism 31 further includes a screw guide sleeve 316 sleeved outside the driving screw 3112 and located between the mounting sleeve 313 and the push-pull plate 3121. The lead screw guide sleeve 316 in this embodiment can not only protect the driving lead screw 3112 and avoid the interference of external parts to the driving lead screw 3112, but also guide the installation of the driving lead screw 3112, thereby facilitating the assembly and use of the positioning mechanism 31.

In an embodiment, the positioning mechanism 31 further includes a guide assembly 317 disposed corresponding to the positioning pin 3122, the guide assembly 317 includes a first shaft sleeve 3171 and a second shaft sleeve 3172 mounted on the rotating frame 12 at intervals, and the first shaft sleeve 3171 and the second shaft sleeve 3172 are respectively disposed on two sides of the push-pull plate 3121 and are respectively in guiding engagement with two ends of the positioning pin 3122. The first shaft sleeve 3171 and the second shaft sleeve 3172 in this embodiment respectively guide two ends of the positioning pin 3122, a cover plate is disposed at an end portion, corresponding to the positioning pin 3122, of the first shaft sleeve 3171 close to the driving wheel 3111, so that the positioning pin 3122 can be prevented from coming off the first shaft sleeve 3171, two ends of the second shaft sleeve 3172 far away from the driving wheel 3111 are open, and the positioning pin 3122 penetrates through the second shaft sleeve 3172 and can extend out or retract relative to the second shaft sleeve 3172. In this embodiment, the first shaft sleeve 3171 and the second shaft sleeve 3172 guide the two ends of the positioning pin 3122, so that the accuracy of the movement locus of the positioning pin 3122 can be ensured, and the positioning accuracy of the positioning mechanism 31 can be improved. In addition, in order to ensure the accuracy of the contraction of the positioning pin 3122 to the initial position, the first sleeve 3171 is provided with a positioning groove having a step-shaped cross section.

In another embodiment, the positioning pin 3122 penetrates through the push-pull plate 3121, the positioning pin 3122 can be connected to the push-pull plate 3121 by a nut connection, and the positioning pin 3122 is prevented from shifting relative to the push-pull plate 3121 by a flat key connection, so that the stability of the positioning mechanism 31 can be improved.

The embodiment of the present invention provides an embodiment, the positioning mechanism 31 further includes a screw end cover 318 installed on the rotating frame 12 and having an oil cup 3181, the screw end cover 318 covers the end of the driving screw 3112 far away from the driving wheel 3111, and the oil cup 3181 is used for supplying lubricating oil to the driving screw 3112. The lead screw end cover 318 in this embodiment can cooperate with the mounting sleeve 313 and the anti-slip cover 315, thereby limiting the axial movement of the driving lead screw 3112, enabling the driving lead screw 3112 to rotate only under the action of external force, and cooperating with the oil cup 3181 to supply lubricating oil to the driving lead screw 3112, thereby improving the service life and the rotation flexibility of the driving lead screw 3112.

In an embodiment, the two rotating frames 12 are respectively a rotating positioning frame 12a and a rotating clamping frame 12b, the positioning device 3 corresponding to the rotating positioning frame 12a is a preliminary positioning device 3a, the positioning device 3 corresponding to the rotating clamping frame 12b is a positioning clamping device 3b, and the length of the positioning pin 3122 of the preliminary positioning device 3a is greater than the length of the positioning pin 3122 of the positioning clamping device 3 b. As shown in fig. 2, the rotary positioning frame 12a and the rotary clamping frame 12b in the present embodiment are respectively located at the left and right sides, and after the primary positioning device 3a with the short length of the positioning pin 3122 is used to preliminarily position the main chord 200, the positioning clamping device 3b with the long length of the positioning pin 3122 can be used to clamp the main chord 200. The standard knot welding tool 100 in the embodiment can accurately position the main chord member 200 through two positioning procedures of primary positioning and positioning clamping, so that the size precision of the standard knot is improved. The specific length of locating pin 3122 can set up according to specific user demand, the utility model discloses do not do the injecing.

In the embodiment of the present invention, the corners of the rotating frame 12 are provided with the positioning devices 3, and the plurality of positioning mechanisms 31 are arranged from the outer edge of the rotating frame 12 to the inner center of the rotating frame 12 at intervals according to the size of the dimension. The rotating frame 12 in this embodiment may be a rectangular frame, and the center point of the rotating frame 12 is rotatably connected to the support bracket 11. In one embodiment, the positioning device 3 includes two positioning mechanisms 31 for positioning the 1.6m main chord 200 and the 1.8m main chord 200, respectively, and the positioning mechanism 31 for positioning the 1.8m main chord 200 is located outside the positioning mechanism 31 for positioning the 1.6m main chord 200, thereby providing a large welding space for welding the main chord 200.

As shown in fig. 1, in an embodiment, the main body frame 1 further includes a rotation bearing 13 disposed at a top end of the support bracket 11 and a rotation shaft 14 engaged with the rotation bearing 13, and the rotation frame 12 is connected to the rotation bearing 13 through the rotation shaft 14. The rotary bearing 13 in this embodiment can be installed on the top end of the support bracket 11 through a bearing seat, and the rotary frame 12 is connected with the rotary bearing 13 through the rotary shaft 14, so that the rotary operation of the rotary frame 12 can be more stable.

In the description of the present invention, it is to be understood that the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

While embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. The utility model provides a standard festival welding frock, its characterized in that, standard festival welding frock (100) includes:

the main body frames (1) are oppositely arranged and form a clamping space (2) for accommodating a main chord (200) of a standard knot, and each main body frame (1) comprises a supporting bracket (11) and a rotating frame (12) which is arranged on the supporting bracket (11) and can rotate relative to the supporting bracket (11);

positioner (3), demountable installation in revolving frame (12) orientation one side of centre gripping space (2), positioner (3) include a plurality of be used for the location centre gripping positioning mechanism (31) of main chord member (200), it is a plurality of positioning mechanism (31)'s size of a dimension is all inequality to the different cross sectional dimension of location main chord member (200).

2. The standard knot welding tool of claim 1, wherein the positioning mechanism (31) comprises:

the driving assembly (311) comprises a driving rotating wheel (3111) and a driving screw rod (3112) penetrating through the rotating frame (12), and the driving rotating wheel (3111) is used for driving the driving screw rod (3112) to rotate;

the transmission positioning assembly (312) comprises a push-pull plate (3121) and a plurality of positioning pins (3122) which are arranged side by side at intervals in a penetrating manner on the rotating frame (12), the push-pull plate (3121) is sleeved outside the driving screw rod (3112) and is in threaded connection with the driving screw rod (3112), and the push-pull plate (3121) is used for being matched with the driving screw rod (3112) and synchronously driving the positioning pins (3122) to synchronously extend out or retract relative to the clamping space (2).

3. The standard knot welding tool of claim 2, characterized in that the positioning mechanism (31) further comprises:

the mounting shaft sleeve (313) is mounted on the rotating frame (12), a bearing accommodating groove which is opened towards the driving rotating wheel (3111) and accommodates a transmission bearing (314) is formed in the mounting shaft sleeve, and the transmission bearing (314) is in transmission fit with the driving screw rod (3112);

and the anti-falling cover (315) is covered at the opening and is detachably connected with the mounting shaft sleeve (313).

4. The standard knot welding frock of claim 3, characterized in that, drive lead screw (3112) is provided with spacing pressing section (3113) that the cross-section is step-like, spacing pressing section (3113) is held in the bearing holding tank and supports drive bearing (314) tightly in the bearing holding tank bottom wall.

5. The standard knot welding frock of claim 3, characterized in that, the positioning mechanism (31) still includes the lead screw guide sleeve (316) of locating outside the drive lead screw (3112) and being located between the installation axle sleeve (313) and the push-and-pull plate (3121).

6. The standard knot welding tool according to claim 2, characterized in that the positioning mechanism (31) further comprises a guide assembly (317) arranged corresponding to the positioning pin (3122), the guide assembly (317) comprises a first shaft sleeve (3171) and a second shaft sleeve (3172) mounted to the rotating frame (12) at intervals, and the first shaft sleeve (3171) and the second shaft sleeve (3172) are respectively located on two sides of the push-pull plate (3121) and are respectively in guiding fit with two ends of the positioning pin (3122).

7. The standard knot welding tool of claim 2, characterized in that the positioning mechanism (31) further comprises a screw end cover (318) installed on the rotating frame (12) and provided with an oil cup (3181), the screw end cover (318) is sleeved on one end of the driving screw (3112) far away from the driving rotating wheel (3111), and the oil cup (3181) is used for supplying lubricating oil to the driving screw (3112).

8. The standard knot welding tool according to any one of claims 2 to 7, characterized in that two rotating frames (12) are respectively a rotating positioning frame (12 a) and a rotating clamping frame (12 b), a positioning device (3) corresponding to the rotating positioning frame (12 a) is a preliminary positioning device (3 a), and a positioning device (3) corresponding to the rotating clamping frame (12 b) is a positioning clamping device (3 b), and the length of a positioning pin (3122) of the preliminary positioning device (3 a) is greater than the length of a positioning pin (3122) of the positioning clamping device (3 b).

9. The standard knot welding tool according to any one of claims 1 to 7, characterized in that the positioning devices (3) are arranged at the corners of the rotating frame (12), and a plurality of positioning mechanisms (31) are arranged at intervals according to the size from the outer edge of the rotating frame (12) to the inner center of the rotating frame (12).

10. The standard knot welding tool of any one of claims 1 to 7, characterized in that the main body frame (1) further comprises a rotary bearing (13) arranged at the top end of the supporting bracket (11) and a rotary shaft (14) matched with the rotary bearing (13), and the rotary frame (12) is connected with the rotary bearing (13) through the rotary shaft (14).