A welding device for a child stroller bracket

Abstract

The present application relates to the field of workpiece welding, and specifically discloses a child stroller bracket welding device, the welding device comprising: a welding manipulator, used to directly weld the connection between the first rod body and the second rod body; a clamping assembly, used to clamp the first rod body or the second rod body; a driving assembly, used to drive the clamping assembly to rotate around a first axis and around a second axis; the first axis coincides with the axis of the first rod body or the second rod body; the second axis is perpendicular to the axis of the first rod body or the second rod body and intersects with the midpoint of the axis of the first rod body or the second rod body. The present application has the effect of enabling the welding manipulator itself to move and rotate relative to the bracket to be welded, and the bracket to be welded itself can also rotate, thereby making it easier for the first rod body and the third rod body or other positions to form a continuous and complete welding shape, and achieving welding without dead angles, thereby improving the welding effect.

Description

Technical Field

[0001] The present application relates to the field of workpiece welding, and in particular to a welding device for a child stroller bracket. Background Art

[0002] Structural reference for strollers Figure 1 , the structure of the child stroller bracket refers to Figure 2 The child stroller support includes a first rod, a second rod, a third rod and a fourth rod. First, the first rod, the second rod, the third rod and the fourth rod are fixed by spot welding. Then, the first rod is completely welded to the third rod and the fourth rod by a welding device, and the second rod is welded to the third rod and the fourth rod. The welding shape is shown in FIG. Figure 2 Therefore, when welding the first rod body, it is necessary to rotate one circle around the first rod body; when welding the second rod body, it is necessary to rotate one circle around the second rod body.

[0003] In the prior art, a positioning tool is mainly used to fix the child stroller bracket on a workbench, and then the child stroller bracket is welded manually or by a welding manipulator. The upper end of the child stroller is first welded to form a semicircular welding shape, and then the positioning tool is removed, the child stroller bracket is turned over, and the other end of the child stroller is welded to form a semicircular welding shape, thereby forming a Figure 2 The welding shape of the middle M, but the M formed by two semicircles will have obvious joints, resulting in poor aesthetics and poor welding effect. In addition, the positioning tooling is too cumbersome for the installation of the child stroller bracket, and the positioning stability is poor, which is prone to positioning errors, making the welding effect worse. Summary of the invention

[0004] In order to improve the problem of difficulty in forming a continuous and complete welding shape resulting in poor welding effect, the present application provides a child stroller bracket welding device.

[0005] The present application provides a child stroller bracket welding device that adopts the following technical solution:

[0006] A child stroller support welding device, the child stroller support comprising: two first rods and two second rods, the two first rods and the two second rods enclosing a closed area; the welding device is used to weld the connection between the first rod and the second rod; the welding device comprises: a welding manipulator, used to directly weld the connection between the first rod and the second rod; a clamping assembly, used to clamp the first rod or the second rod; a driving assembly, used to drive the clamping assembly to rotate around a first axis and around a second axis; the first axis coincides with the axis of the first rod or the second rod; the second axis coincides with the first The axis of the rod body or the second rod body is perpendicular and intersects with the midpoint of the axis of the first rod body or the second rod body; wherein the clamping assembly includes: a connecting seat, a plurality of abutments and a plurality of tightening ropes connected to the abutments; the plurality of abutments are arranged at intervals and connected by the tightening ropes; the plurality of abutments form a structure that can surround the first rod body or the second rod body; a winding member is provided on the connecting seat, and the winding member is used to enable the tightening rope to tighten the plurality of abutments and press them against the first rod body or the second rod body; one end of the tightening rope is connected to the output end of the winding member, and the other end is detachably connected to the connecting seat.

[0007] By adopting the above technical solution, in the traditional welding technology, due to the shape of the bracket to be welded, Figure 1 As shown, during welding, the welding manipulator will rotate relative to the bracket to be welded. After the position of the bracket to be welded is fixed, when the welding manipulator performs welding, the welding manipulator itself is relatively large in size, and the first rod body and the second rod body will limit the space for the welding manipulator to move on the bracket to be welded, which is easy to produce welding dead angles and makes it difficult to automatically achieve welding. The present application adopts the above-mentioned technical solution to achieve that the bracket to be welded can rotate by itself, and the welding manipulator itself can also move and rotate relative to the bracket to be welded, thereby enabling fully automatic welding and welding without dead angles.

[0008] By adopting the above technical solution, the clamping assembly drives the bracket to be welded to rotate around the second axis. If the clamping assembly clamps the first rod body, then after welding is completed at the position where the first rod body contacts the third rod body, the clamping assembly drives the bracket to be welded to rotate around the second axis, so that the position where the first rod body contacts the fourth rod body is located at the welding robot, thereby welding is performed at the position where the first rod body contacts the fourth rod body, which is conducive to realizing automatic welding and improving the speed of automatic welding.

[0009] By adopting the above technical solution, multiple abutments are contacted with the first rod body or the second rod body, and then the tightening rope tightens the multiple abutments, so that the multiple abutments are tightly attached to the first rod body or the second rod body, and the multiple abutments are connected by the tightening rope, so the multiple abutments can be surrounded into any shape, so that when the diameter size of the first rod body or the second rod body of the bracket to be welded is different, the first rod body or the second rod body can be clamped and fixed, thereby greatly improving the stability of clamping and fixing, and further improving the stability in the entire working condition. In addition, one end of the tightening rope is connected to the winding member, and the other end is detachably connected to the connecting seat to achieve clamping of the first rod body or the second rod body. Since the ends of the first rod body and the second rod body are connected to the third rod body and the fourth rod body by spot welding, it is difficult to achieve full-wrapped fixation when fixing the first rod body and the second rod body. The present application can not only achieve full-wrapped clamping and fixation of the first rod body and the second rod body, but also adapt to brackets to be welded of different sizes, greatly improving the versatility and stability of the use process.

[0010] Optionally, a driving wheel and a power member for driving the driving wheel to rotate are provided on the connecting seat; a transmission wheel for abutting against the first rod body or the second rod body is provided on the multiple abutting members; the driving wheel abuts against the first rod body or the second rod body; the axis of the driving wheel and the axis of the transmission wheel are both perpendicular to the axis of the first rod body or the second rod body.

[0011] By adopting the above technical solution, the clamping assembly can be moved on the first rod body or the second rod body through the setting of the driving wheel and the transmission wheel. In other words, the first rod body or the second rod body is moved relative to the clamping assembly, so that the clamping assembly can be located near the second fixed axis. Therefore, when the clamping assembly clamps the first rod body or the second rod body, it can clamp any position, and then the driving wheel is used to make the clamping assembly located near the second fixed axis and drive the bracket to be welded to rotate around the second fixed axis, which makes the operation simpler.

[0012] Optionally, the driving assembly includes: a driving member, a rotating body and a connecting member; the rotating body is connected to the connecting seat, the connecting member is used to connect the rotating body to the driving member, and the driving member drives the rotating body to rotate through the connecting member so that the first rod body or the second rod body rotates around the first fixed axis; the rotating body is rotationally connected to the connecting member, and the driving member is also used to drive the rotating body to rotate relative to the connecting member so that the first rod body or the second rod body rotates around the second fixed axis.

[0013] By adopting the above technical solution, a specific solution is provided for the sight clamping assembly to drive the bracket to be welded to rotate around the first fixed axis or the second fixed axis.

[0014] Optionally, a connecting cavity is formed in the connecting member, and a slot connected to the connecting cavity is formed in the rotating body; an inserting portion that can be inserted into the slot is formed on the connecting seat; a passage cavity is also formed on the connecting seat, and the passage cavity is connected to the slot; a heating element is provided at one end of the connecting member away from the rotating body, and the heating element is used to discharge hot air into the connecting cavity; an air outlet connected to the passage cavity is also formed on the connecting seat, and the air outlet is used to discharge hot air to the position where the first rod body and the second rod body are to be welded.

[0015] By adopting the above technical solution, the connecting seat is connected to the rotating body through the plug-in portion and the slot, so that the two can be detachably connected by plugging. In actual use, the clamping assembly is first clamped to the first rod body or the second rod body, and then the clamping assembly is plugged into the rotating body, which greatly improves the convenience of use and avoids the situation where the bracket to be welded is relatively heavy and the bracket to be welded needs to be lifted for a period of time for fixation, making the fixation of the bracket to be welded easier.

[0016] By adopting the above technical solution, hot air is blown out from the air outlet to the position where the first rod body and the second rod body are to be welded, so the welding position can be preheated, which is beneficial to improve the welding effect and make the welding more firm.

[0017] Optionally, the heating element includes: a pump body component, a pipe component and a collecting box; the pipe component is used to form two branch pipes, one of which forms a heating area, and the other branch pipe is used to form a channel connecting the air outlet and the collecting box; the pipe component also includes a control valve, which is used to put one of the two branch pipes in a passable state; the pump body component is used to introduce air into the heating area, and discharge it from the air outlet after passing through the heating area, and to allow air to be sucked into the collecting box from the air outlet.

[0018] By adopting the above technical solution, in addition to blowing hot air out, it is also possible to suck external air into the collection box. Then, during welding, welding waste gas will be generated. In this way, the welding waste gas can be sucked into the collection box to prevent the welding waste gas from spreading and affecting the workshop environment.

[0019] Optionally, two groups of laser rangefinders are arranged on the connecting seat; the two groups of laser rangefinders are symmetrically arranged relative to the inserting portion of the connecting seat; one group of laser rangefinders is used to measure the distance between the connecting seat and the third rod body, and the other group of laser rangefinders is used to measure the distance between the connecting seat and the fourth rod body; the power member drives the connecting seat to move on the first rod body or the second rod body through the power wheel until the distance measured by the first laser rangefinder is the same as the distance measured by the second laser rangefinder and stops.

[0020] By adopting the above technical solution, the arrangement of two groups of laser rangefinders can automatically adjust the position of the clamping assembly.

[0021] Optionally, a support structure is also provided on the connecting seat; when the clamping assembly clamps the first rod body or the second rod body, the support structure forms a support surface capable of contacting the third rod body and the fourth rod body; the support surface is parallel to the axis of the first rod body or the second rod body.

[0022] By adopting the above technical solution, the supporting structure forms a supporting surface, and the supporting surface supports the bracket to be welded, thereby improving the stability of the bracket to be welded during fixation.

[0023] Optionally, an air outlet pipe is provided at the air outlet; a telescopic driving structure is also provided on the connecting seat; the telescopic driving structure is used to drive the air outlet pipe to move closer to and away from the connecting seat, and the air outlet pipe is connected to the air outlet; the air outlet pipe and the air outlet are each provided in two groups, and the air outlet directions are opposite.

[0024] By adopting the above technical solution, the position of the air outlet pipe can be adjusted, so in some cases the air outlet pipe can be placed close to the position where welding is required, so that the preheating effect is improved and the exhaust gas absorption effect is improved.

[0025] Optionally, a through hole is formed in the abutment member, and the tightening rope passes through the through hole.

[0026] Optionally, a connecting structure is formed on the connecting member, and the connecting structure is used to make the second rod contact with the connecting structure when the clamping assembly clamps the first rod; the connecting structure is also used to make the first rod contact with the connecting structure when the clamping structure clamps the second rod.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. The welding manipulator itself can move and rotate relative to the bracket to be welded, and the bracket to be welded itself can also rotate, so that it is easier for the first rod body and the third rod body or other positions to form a continuous and complete welding shape, and realize welding without dead angles, thereby improving the welding effect;

[0029] 2. The bracket to be welded is driven to rotate around the second axis by the clamping assembly, so that after the welding is completed at the position where the first rod body contacts the third rod body, the bracket to be welded is flipped so that the position where the first rod body contacts the fourth rod body is located at the position of the welding machine manipulator, thereby facilitating automatic welding and improving the speed of automatic welding.

[0030] 3. By tightening the multiple abutment members against the first rod body or the second rod body and tightening them with the tightening rope, the first rod body and the second rod body can be fully wrapped, clamped and fixed, and can also adapt to different sizes of brackets to be welded, greatly improving the versatility and stability of the use process. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of the child stroller of the present application;

[0032] Figure 2 It is a schematic diagram of the structure of the bracket in the child stroller of the present application;

[0033] Figure 3 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the welding device;

[0034] Figure 4 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the welding device observed from another perspective;

[0035] Figure 5 It is a structural schematic diagram of a part of the embodiment, mainly showing the internal and external structures of the power cabinet;

[0036] Figure 6 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the driving assembly and the clamping assembly;

[0037] Figure 7 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the clamping assembly clamping the welding bracket;

[0038] Figure 8 It is a structural diagram of a part of the embodiment, mainly showing Figure 7 The structure of the explosion;

[0039] Fig. 9 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the connecting seat and some surrounding parts;

[0040] Fig.10 It is a schematic structural diagram of a part of the embodiment, mainly showing the structure of the driving wheel and some surrounding parts;

[0041] Fig.11 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the winding member;

[0042] Fig.12 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure around the connecting seat;

[0043] Fig.13 It is a structural diagram of a part of the embodiment, mainly showing Figure 3 The cross-sectional structure of

[0044] Fig.14 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the passage cavity and the air outlet cavity;

[0045] Fig.15 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the supporting structure, the connecting structure and some surrounding parts;

[0046] Fig.16 It is a structural schematic diagram of a part of the embodiment, mainly showing the Fig.15 structure.

[0047] Reference numerals:

[0048] 1. bracket to be welded; 11. first rod; 12. second rod; 13. third rod; 14. fourth rod;

[0049] 2. Power cabinet;

[0050] 3. Welding manipulator;

[0051] 4. Clamping assembly; 41. Connecting seat; 411. Through hole; 412. Insertion part; 413. Air outlet; 414. Passage cavity; 415. Air outlet cavity; 42. Abutment member; 43. Tightening rope; 44. Winding member; 45. Driving wheel; 46. Power member; 47. Transmission wheel;

[0052] 5. driving assembly; 51. driving member; 52. rotating body; 521. slot; 53. connecting member; 54. second driving motor; 55. third driving motor; 56. first gear; 57. second gear;

[0053] 6. Support structure;

[0054] 7. Heating element; 71. Pump body component; 72. Pipeline component; 73. Collection box;

[0055] 8. Connection structure. DETAILED DESCRIPTION

[0056] The following is combined with Figure 1-16 This application is described in further detail.

[0057] The embodiment of the present application discloses a welding device for a child stroller bracket.

[0058] Reference Figure 1-2 ,

[0059] The child stroller support is a frame, wherein the child stroller support comprises: a first rod 11, a second rod 12, a third rod 13 and a fourth rod 14, the first rod 11, the second rod 12, the third rod 13 and the fourth rod 14 enclose a closed area; the welding device is used to weld the connection between the first rod 11 and the third rod 13 and the fourth rod 14, and to weld the connection between the second rod 12 and the third rod 13 and the fourth rod 14. The frame composed of the first rod 11, the second rod 12, the third rod 13 and the fourth rod 14 is a support 1 to be welded, and is a part of the child stroller support.

[0060] Reference Figure 3-16

[0061] The welding device comprises: a power cabinet 2, a welding manipulator 3, a clamping assembly 4 and a driving assembly 5.

[0062] The welding manipulator 3 is arranged on the power cabinet 2. The welding manipulator 3 can be directly fixed to the power cabinet 2, or a two-axis mobile platform can be arranged on the power cabinet 2 to fix the welding manipulator 3 to the two-axis mobile platform to increase the welding space of the welding manipulator 3 and reduce the dead angle. The welding manipulator 3 is used to directly weld the connection between the first rod body 11 and the second rod body 12.

[0063] The clamping assembly 4 is used to clamp the first rod body 11 or the second rod body 12. The clamping assembly 4 includes: a connecting seat 41, a plurality of abutting members 42 and a plurality of tightening ropes 43 connected to the abutting members 42. The plurality of abutting members 42 are arranged at intervals and connected by the tightening ropes 43. In this embodiment, the tightening rope 43 is provided with multiple sections, and each section of the tightening rope 43 is located between two adjacent abutting members 42, so that the two abutting members 42 are easy to move relative to each other under the action of the tightening rope 43, so that the plurality of abutting members 42 can easily form a structure that can surround the first rod body 11 or the second rod body 12, and can not only surround a square rod body but also a circular rod body. When the plurality of abutting members 42 surround the first rod body 11 or the second rod body 12, the plurality of abutting members 42 are all in abutment with the first rod body 11 or the second rod body 12. A winding member 44 is provided on the connecting seat 41, and the winding member 44 is used to enable the tightening rope 43 to tighten the plurality of the abutting members 42 and abut against the first rod body 11 or the second rod body 12. In this embodiment, the winding member 44 preferably adopts the cooperation of a motor and a winding wheel, the motor is installed on the connecting seat 41, and the winding wheel is fixed to the output end of the motor. One end of the tightening rope 43 is fixedly connected to the output end of the winding member 44, and the other end is detachably connected to the connecting seat 41. Specifically, among the plurality of abutting members 42, tightening ropes 43 are also provided on two abutting members 42 on both sides, one of which is connected to the output end of the winding member 44, and the other is detachably connected to the connecting seat 41. The tightening rope 43 connected to the output end of the winding member 44 is longer, so that the tightening rope 43 can have space to be tightened.

[0064] The tightening rope 43 and the connecting seat 41 are detachably connected by means of plug-in, snap-on, snap-on or quick-release buckles, so as to achieve quick disassembly.

[0065] The driving assembly 5 is used to drive the clamping assembly 4 to rotate around the first axis and around the second axis. The first axis coincides with the axis of the first rod body 11 or the second rod body 12. The second axis is perpendicular to the axis of the first rod body 11 or the second rod body 12 and intersects with the midpoint of the axis of the first rod body 11 or the second rod body 12. In this embodiment, the driving assembly 5 is a rotationally driven motor, and the rotationally driven motor is set in multiple ways to realize that the clamping assembly 4 drives the to-be-welded bracket 1 to rotate around the first fixed axis or around the second fixed axis.

[0066] In the conventional welding technology, the shape of the bracket 1 to be welded is as follows: Figure 1As shown, during welding, the welding manipulator 3 will rotate relative to the bracket 1 to be welded. After the position of the bracket 1 to be welded is fixed, when the welding manipulator 3 performs welding, the welding manipulator 3 itself is relatively large in size, and the first rod 11 and the second rod 12 will limit the space for the welding manipulator 3 to move on the bracket 1 to be welded. For example, if the welding manipulator 3 rotates around the first rod 11, the second rod 12 will block the welding manipulator 3, making it impossible for the welding manipulator 3 to reach a certain part of the space, which will easily cause welding dead angles and make it difficult to automatically achieve welding. In addition, since the welding range of the welding manipulator 3 cannot rotate around the first rod 11, it is difficult for the welding manipulator 3 to form a ring-shaped weld at the position where the first rod 11 and the third rod 13 or the fourth rod 14 are in contact at one time. The present application adopts the above-mentioned technical solution to achieve that the bracket 1 to be welded can rotate by itself, and the welding robot 3 itself can also move and rotate relative to the bracket 1 to be welded, so that the welding robot 3 can rotate 360° relative to the bracket 1 to be welded, thereby enabling fully automatic welding and welding without dead angles.

[0067] By adopting the above technical solution, the clamping assembly 4 drives the bracket 1 to be welded to rotate around the second axis. If the clamping assembly 4 clamps the first rod 11, then after the welding is completed at the position where the first rod 11 contacts the third rod 13, the clamping assembly 4 drives the bracket 1 to be welded to rotate around the second axis, so that the position where the first rod 11 contacts the fourth rod 14 is located at the welding robot 3, so that the position where the first rod 11 contacts the fourth rod 14 is welded, which is conducive to realizing automatic welding and improving the speed of automatic welding.

[0068] By adopting the above technical solution, multiple abutments 42 are in contact with the first rod body 11 or the second rod body 12, and then the tightening rope 43 tightens the multiple abutments 42, so that the multiple abutments 42 are tightly fitted on the first rod body 11 or the second rod body 12, and the multiple abutments 42 are connected by the tightening rope 43, so the multiple abutments 42 can be surrounded into any shape, so that when the diameters of the first rod body 11 or the second rod body 12 of the bracket 1 to be welded are different, the first rod body 11 or the second rod body 12 can be clamped and fixed, thereby greatly improving the stability of the clamping and fixing, and then improving the stability in the entire working condition. In addition, one end of the tightening rope 43 is connected to the winding piece 44, and the other end is detachably connected to the connecting seat 41, so that the first rod body 11 or the second rod body 12 can be clamped. Since the ends of the first rod body 11 and the second rod body 12 are connected to the third rod body 13 and the fourth rod body 14 by spot welding, it is difficult to achieve full-wrapped fixation when fixing the first rod body 11 and the second rod body 12. The present application can not only achieve full-wrapped clamping and fixation of the first rod body 11 and the second rod body 12, but also adapt to different sizes of the brackets 1 to be welded, which greatly improves the versatility and stability of the use process.

[0069] In some specific embodiments, the abutment member 42 is a plate, the connection seat 41 is provided with a driving wheel 45 and a power member 46 for driving the driving wheel 45 to rotate; the abutment members 42 are provided with transmission wheels 47 for abutting against the first rod 11 or the second rod 12; the driving wheel 45 abuts against the first rod 11 or the second rod 12; the axis of the driving wheel 45 and the axis of the transmission wheel 47 are both perpendicular to the axis of the first rod 11 or the second rod 12. The power member 46 is a motor for driving the driving wheel 45 to rotate.

[0070] For the convenience of description, some embodiments of the present application are described mainly with respect to clamping and fixing the first rod body 11 and welding the contact position between the first rod body 11 and the third rod body 13 .

[0071] The axes of the driving wheel 45 and the transmission wheel 47 are perpendicular to the axis of the first rod body 11. Therefore, when the driving wheel 45 and the transmission wheel 47 are in contact with the first rod body 11, the first rod body 11 can be prevented from rotating relative to the driving wheel 45 and the transmission wheel 47, and the first rod body 11 can be clamped. The power member 46 prevents the driving wheel 45 from rotating, thereby preventing the first rod body 11 from moving relative to the driving wheel 45 along the axis of the first rod body 11, thereby achieving stable clamping and fixing of the first rod body 11. At the same time, it is also possible to move the clamping assembly 4 on the first rod 11 or the second rod 12. In other words, the first rod 11 or the second rod 12 is moved relative to the clamping assembly 4, so that the clamping assembly 4 can be located near the second fixed axis. Therefore, when the clamping assembly 4 clamps the first rod 11 or the second rod 12, it can clamp any position, and then the driving wheel 45 is used to make the clamping assembly 4 located near the second fixed axis and drive the bracket 1 to be welded to rotate around the second fixed axis, which makes the operation simpler.

[0072] In some specific embodiments, two groups of laser rangefinders are arranged on the connecting seat 41; the two groups of laser rangefinders are symmetrically arranged relative to the middle of the connecting seat 41. One group of laser rangefinders is used to measure the distance between the connecting seat 41 and the third rod body 13, and the other group of laser rangefinders is used to measure the distance between the connecting seat 41 and the fourth rod body 14. The power member 46 drives the connecting seat 41 to move on the first rod body 11 or the second rod body 12 through the power wheel until the distance measured by the first laser rangefinder is the same as that measured by the second laser rangefinder, and then stops. The arrangement of the two groups of laser rangefinders can automatically adjust the position of the clamping assembly 4.

[0073] In some specific embodiments, a support structure 6 is further provided on the connection seat 41; when the clamping assembly 4 clamps the first rod 11 or the second rod 12, the support structure 6 forms a support surface that can contact the third rod 13 and the fourth rod 14; the support surface is parallel to the axis of the first rod 11 or the second rod 12. The support structure 6 is a rod, and the support structure 6 forms a support surface, and the support surface supports the bracket 1 to be welded, thereby improving the stability of the bracket 1 to be welded when fixed.

[0074] In some other specific embodiments, a through hole 411 is formed in the abutment 42, and the tightening rope 43 passes through the through hole 411. Thus, the tightening rope 43 can tighten multiple abutments 42. In another embodiment, multiple knots 431 are formed on the tightening rope 43, and the knots 431 are fixed to the tightening rope 43. The knots are blocks or blocks formed on the tightening rope in a buckled manner. The abutment 42 is located between two knots 431, so that the knots 431 are used to limit the position of the abutment 42, so that when the tightening rope 43 tightens the first rod body 11, the position of the abutment 42 on the tightening rope 43 is relatively dispersed and will not gather in one place, thereby increasing the effect of the abutment 42 fixing the first rod body 11. Example 2

[0075] The difference from Example 1 is:

[0076] The driving assembly 5 includes: a driving member 51, a rotating body 52 and a connecting member 53. The rotating body 52 is connected to the connecting seat 41, and the connecting member 53 is used to connect the rotating body 52 to the driving member 51. The driving member 51 drives the rotating body 52 to rotate through the connecting member 53, so that the first rod 11 or the second rod 12 rotates around the first fixed axis; the rotating body 52 is rotationally connected to the connecting member 53, and the driving member 51 is also used to drive the rotating body 52 to rotate relative to the connecting member 53, so that the first rod 11 or the second rod 12 rotates around the second fixed axis. The rotating body 52 is a rod body, and the connecting member 53 is a rod body. The driving member 51 includes a first driving motor and a second driving motor 54. The connecting member 53 is rotationally connected to the power cabinet 2. The first driving motor is used to drive the connecting member 53 to rotate, and the second driving motor 54 is installed on the connecting member 53. The second driving motor 54 is used to drive the rotating body 52 to rotate relative to the connecting member 53.

[0077] The supporting structure 6 is fixedly connected to the rotating body 52 . Example 3

[0078] The difference from Example 2 is:

[0079] The connecting member 53 is formed with a connecting cavity, and the rotating body 52 is formed with a slot 521 connected to the connecting cavity; the connecting seat 41 is formed with an inserting portion 412 that can be inserted into the slot 521; the connecting seat 41 is also formed with a passage cavity 414 and an air outlet cavity 415, and the passage cavity 414 is connected to the slot 521. The passage cavity 414 is connected to the air outlet cavity 415, and the air outlet cavity 415 is connected to the air outlet 413. The inserting portion 412 is located in the middle of the connecting seat 41, and the two laser rangefinders in Example 1 are specifically arranged symmetrically relative to the inserting portion 412. The connecting seat 41 is connected to the rotating body 52 through the inserting portion 412 and the slot 521, so that the two can be detachably connected by plugging. In actual use, the clamping assembly 4 is first used to clamp the first rod body 11 or the second rod body 12, and then the clamping assembly 4 is plugged into the rotating body 52, which greatly improves the convenience of use and avoids the situation where the bracket 1 to be welded is relatively heavy and the bracket 1 to be welded needs to be lifted for a period of time for fixing, making the fixing of the bracket 1 to be welded easier.

[0080] A heating element 7 is provided at one end of the connecting member 53 away from the rotating body 52, and the heating element 7 is used to discharge hot air into the connecting cavity. The heating element 7 is provided in the power cabinet 2. The first drive motor in Example 2 is replaced by a motor drive structure, which includes a third drive motor 55, a first gear 56 and a second gear 57. The first gear 56 is connected to the output end of the third drive motor 55, and the second gear 57 is fixed to the connecting member 53. The first gear 56 and the second gear 57 are meshed, so that the end of the connecting member 53 can cooperate with the heating element 7. An air outlet 413 connected to the passage cavity 414 is also formed on the connecting seat 41, and the air outlet 413 is used to discharge hot air to the position where the first rod body 11 and the second rod body 12 are to be welded. The heating element 7 includes: a fan and a heating pipe, the fan blows air into the connecting member 53, and the heating pipe is provided at the output end of the fan to heat the air passing through the fan. In some solutions, a connection box can be provided between the fan and the connection pipe, the heating pipe is provided in the connection box, the fan blows air into the connection box, the connection box is connected with the connection cavity of the connector 53, so that the air enters the connection cavity. The air is blown outward from the air outlet 413 to the position where the first rod body 11 and the second rod body 12 are to be welded, so that the welding position can be preheated, which is beneficial to improve the welding effect and make the welding more firm.

[0081] In another solution, a nozzle is provided at the air outlet. By tilting the nozzle, the direction in which the hot air is discharged outward from the air outlet can be changed, so that the hot air is completely blown to the position where welding is required. Example 4

[0082] The difference from Example 3 is that:

[0083] The heating element 7 includes: a pump body component 71, a pipe component 72 and a collection box 73. The pipe component 72 is used to form two branch pipes, one of which forms a heating area, and the other branch pipe is used to form a channel connecting the air outlet 413 and the collection box 73. The pipe component 72 also includes a control valve, which is used to put one of the two branch pipes in a passable state. The pump body component 71 is used to introduce air into the heating area, and discharge it from the air outlet 413 after passing through the heating area, and to make the air be sucked from the air outlet 413 into the collection box 73. Specifically, the branch pipe is a pipe body, and the control valve is arranged on the pipe body.

[0084] Among them, the pump body component 71 is two air pumps, and the air pumps are connected to the branch pipelines. One of the air pumps blows the air outward and blows it into the branch pipeline with a heating area, and finally discharges it outward at the air outlet 413 through the connector 53 to achieve preheating of the welding position. The other air pump sucks the air near the air outlet 413, so that the air enters the collection box 73 for collection. The collection box 73 is provided with components for treating welding waste gas, thereby achieving waste gas treatment. In addition to blowing hot air outward, it is also possible to suck external air into the collection box 73. Then, welding waste gas will be generated during welding. In this way, the welding waste gas is sucked into the collection box 73, thereby preventing the welding waste gas from spreading and affecting the workshop environment. Example 5

[0085] The difference from Example 3 is that:

[0086] The connecting member 53 is formed with a connecting structure 8, and the connecting structure 8 is used to make the second rod 12 contact with the connecting structure 8 when the clamping assembly 4 clamps the first rod 11; the connecting structure 8 is also used to make the first rod 11 contact with the connecting structure 8 when the clamping structure clamps the second rod 12. The connecting structure 8 is used to further support the bracket 1 to be welded. Specifically, the connecting structure 8 is a rod, and the connecting structure 8 is fixed to the connecting seat 41.

[0087] In other schemes, an air outlet pipe is provided at the air outlet 413; a telescopic driving structure is also provided on the connecting seat 41; the telescopic driving structure is an electric push rod. The telescopic driving structure is used to drive the air outlet pipe to move closer to and away from the connecting seat 41, and the air outlet pipe is connected to the air outlet 413; two groups of the air outlet pipe and the air outlet 413 are provided, and the air outlet directions are opposite. The position of the air outlet pipe can be adjusted, so in some cases the air outlet pipe can be placed close to the position where welding is required, so that the preheating effect is improved and the exhaust gas absorption effect is improved.

[0088] The implementation principle of a child stroller bracket welding device in the embodiment of the present application is as follows:

[0089] The first rod body 11 of the bracket 1 to be welded is placed on the connecting seat 41, and then the tightening rope 43 is fixed to the connecting seat 41 through the quick release buckle, so that the tightening rope 43 and the abutment 42 wrap the first rod body 11, and then the winding member 44 tightens the tightening rope 43 to fix the first rod body 11 to the connecting seat 41.

[0090] Move the bracket 1 to be welded, and insert the inserting portion 412 on the connecting seat 41 into the slot 521 of the rotating body 52, so that the bracket to be welded is fixed relative to the connecting member 53, and then the power member 46 drives the driving wheel 45 to rotate, and adjusts the position of the first rod body 11, so that the connecting seat 41 is located near the second fixed axis, or more precisely, the inserting portion 412 coincides with the second fixed axis.

[0091] The driving assembly 5 rotates the bracket 1 to be welded around the first fixed axis, and the welding manipulator 3 also moves relative to the first rod 11 at the same time, so as to weld the position where the first rod 11 contacts the third rod 13, and form a ring-shaped weld. The driving assembly 5 rotates the bracket 1 to be welded around the second fixed axis, so that the position where the first rod 11 contacts the fourth rod 14 on the bracket 1 to be welded is rotated to the position of the welding manipulator 3, and then the above steps are repeated to weld the position where the first rod 11 contacts the fourth rod 14.

[0092] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A child stroller bracket welding device, the child stroller bracket comprising: The first rod body, the second rod body, the third rod body and the fourth rod body form a closed area; the welding device is used to weld the connection between the first rod body and the third rod body and the fourth rod body, and is used to weld the connection between the second rod body and the third rod body and the fourth rod body; characterized in that the welding device includes: A welding manipulator, used for directly welding the connection between the first rod body and the second rod body; A clamping assembly, used for clamping the first rod body or the second rod body; A driving assembly, used for driving the clamping assembly to rotate around the first axis and around the second axis; The first axis coincides with the axis of the first rod body or the second rod body; the second axis is perpendicular to the axis of the first rod body or the second rod body and intersects with the midpoint of the axis of the first rod body or the second rod body; Wherein, the clamping assembly comprises: a connecting seat, a plurality of abutment members and a tightening rope connected to the plurality of abutment members; The plurality of abutting members are arranged at intervals and connected by the tightening rope; the plurality of abutting members form a structure capable of surrounding the first rod body or the second rod body; a winding member is arranged on the connecting seat, and the winding member is used to enable the tightening rope to tighten the plurality of abutting members and press them against the first rod body or the second rod body; one end of the tightening rope is connected to the output end of the winding member, and the other end is detachably connected to the connecting seat; The connecting seat is provided with a driving wheel and a power member for driving the driving wheel to rotate; A plurality of the abutting members are provided with a transmission wheel for abutting against the first rod body or the second rod body; the driving wheel abuts against the first rod body or the second rod body; The axis of the driving wheel and the axis of the transmission wheel are both perpendicular to the axis of the first rod body or the second rod body; The driving assembly comprises: a driving member, a rotating body and a connecting member; The rotating body is connected to the connecting seat, and the connecting member is used to connect the rotating body to the driving member, and the driving member drives the rotating body to rotate through the connecting member, so that the first rod body or the second rod body rotates around the first axis; The rotating body is rotatably connected to the connecting member, and the driving member is further used to drive the rotating body to rotate relative to the connecting member, so that the first rod body or the second rod body rotates around the second axis.

2. A child stroller bracket welding device according to claim 1, characterized in that: A connecting cavity is formed in the connecting member, a slot communicating with the connecting cavity is formed in the rotating body; and an inserting portion capable of being inserted into the slot is formed on the connecting seat; A passage cavity is also formed on the connecting seat, and the passage cavity is communicated with the slot; A heating element is disposed at one end of the connecting element away from the rotating body, and the heating element is used to discharge hot air into the connecting cavity; An air outlet communicated with the passage cavity is also formed on the connection seat, and the air outlet is used to discharge hot air to the position where the first rod body and the second rod body are to be welded.

3. A child stroller bracket welding device according to claim 2, characterized in that: The heating element comprises: a pump body component, a pipeline component and a collection box; The pipeline component is used to form two branch pipelines, one of which forms a heating area, and the other branch pipeline is used to form a channel connecting the gas outlet and the collection box; The pipeline component also includes a control valve, which is used to put one of the two branch pipelines in a passable state; The pump body component is used for introducing air into the heating area, discharging air from the air outlet after passing through the heating area, and for sucking air from the air outlet into the collection box.

4. A child stroller bracket welding device according to claim 3, characterized in that: Two groups of laser rangefinders are arranged on the connecting seat; The two groups of laser distance meters are symmetrically arranged relative to the inserting portion of the connecting seat; one group of laser distance meters is used to measure the distance between the connecting seat and the third rod body, and the other group of laser distance meters is used to measure the distance between the connecting seat and the fourth rod body; The power member drives the connecting seat to move on the first rod body or the second rod body through the driving wheel until the distances measured by the two groups of laser rangefinders are the same and then stop.

5. A child stroller bracket welding device according to claim 4, characterized in that: A support structure is also provided on the connecting seat; when the clamping assembly clamps the first rod body or the second rod body, the support structure forms a support surface that can contact the third rod body and the fourth rod body; The supporting surface is parallel to an axis of the first rod body or the second rod body.

6. A child stroller bracket welding device according to claim 5, characterized in that: An air outlet pipe is arranged at the air outlet; a telescopic driving structure is also arranged on the connecting seat; The telescopic driving structure is used to drive the air outlet pipe to move closer to and away from the connecting seat, and the air outlet pipe is connected to the air outlet; The air outlet pipes and the air outlets are both arranged in two groups, and the air outlet directions are opposite.

7. A child stroller bracket welding device according to claim 1, characterized in that: A through hole is formed in the abutment member, and the tightening rope passes through the through hole.

8. A child stroller bracket welding device according to claim 1, characterized in that: A connecting structure is formed on the connecting member, and the connecting structure is used to make the second rod contact with the connecting structure when the clamping assembly clamps the first rod; the connecting structure is also used to make the first rod contact with the connecting structure when the clamping assembly clamps the second rod.

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