A welding production device for a street lamp pole and a method of using the same

Abstract

The application belongs to the technical field of welding clamping, and particularly relates to a welding production device for a street lamp pole and a use method thereof, which comprises a progressive inclined surface limiting mechanism, a sectional driving mechanism, an adjustable transmission mechanism, a bottom support assembly and a bottom plate. The progressive inclined surface limiting mechanism comprises a progressive rack, a planetary reducer, a threaded transmission transverse moving assembly and a traveling assembly. The threaded transmission transverse moving assembly comprises a fixed rack and a screw rod. The fixed rack is arranged on the bottom plate. The progressive inclined surface limiting mechanism is provided, and through the transmission of the planetary reducer, the screw rod can rotate when the driving motor drives the traveling wheel to travel, thereby achieving the technical effect that the progressive rack is continuously tightened while the workpiece is traveling. Moreover, since the planetary reducer is arranged between the traveling wheel and the screw rod for transmission, even if the rotating speed of the driving motor changes, the tightening speed of the progressive rack can still be adapted to the traveling speed of the workpiece.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of welding clamping, and particularly relates to a welding production device for a street lamp pole and a use method thereof. BACKGROUND

[0002] The cross section of the street lamp pole is mostly circular or regular polygonal, the cross section shape is different, but the whole presents a conical frustum shape with the upper part being small and the lower part being large; the street lamp pole is mostly bent or wound into a target shape by a steel plate, and finally the splicing seams are welded, but there is inevitable stress release between the two processes of bending and welding, so the workpiece needs to be clamped from both sides during welding, otherwise, the welding seam being too large or too small will not only cause the connection to be not firm, but also cause the product error to be too large, thereby affecting the cooperation with other parts.

[0003] However, unlike other cross-section constant profiles, since the lamp pole has a certain taper, the distance between the rollers for pressing also needs to change with the displacement of the lamp pole, and how to simply realize the motion control is a problem that needs to be considered during production. SUMMARY

[0004] In view of the above situation, in order to solve the limiting problem when the cross section size of the workpiece is always changing, the present application creatively proposes a progressive inclined surface limiting mechanism, which can rotate the screw rod while driving the traveling wheel to travel through the transmission of the planetary reducer, thereby realizing the technical effect of continuously tightening the progressive rack while the workpiece is traveling, and since the planetary reducer is used for transmission between the traveling wheel and the screw rod, even if the rotation speed of the driving motor changes, the tightening speed of the progressive rack can still adapt to the traveling speed of the workpiece.

[0005] In addition, since the tapers of different specifications of lamp poles are not the same, the rotation speed of the outer gear ring of the planetary reducer can be controlled through the linkage of the adjustable transmission mechanism, thereby actively controlling and calibrating the transmission ratio between the sun shaft of the planetary reducer and the screw rod, so that it can adapt to lamp poles with different tapers.

[0006] The technical scheme adopted by the present application is as follows: the present application proposes a welding production device for a street lamp pole, which comprises a progressive inclined surface limiting mechanism, a sectional driving mechanism, an adjustable transmission mechanism, a bottom support assembly and a bottom plate, the progressive inclined surface limiting mechanism comprises a progressive rack, a planetary reducer, a screw transmission horizontal moving assembly and a traveling assembly, the screw transmission horizontal moving assembly comprises a fixed rack and a screw rod, the fixed rack is arranged on the bottom plate, linear bearings are uniformly arranged in a ring shape on the fixed rack, a nut is arranged at the center position of the fixed rack, the nut and the screw rod are threadedly connected, and the screw rod and the planet carrier of the planetary reducer are connected;

[0007] The power transmission is realized by the series form, so that the driving motor can control the workpiece movement and the progressive frame contraction at the same time; in this process, the transmission ratio of the planetary reducer can be preset through the adjustable transmission mechanism, so that the transverse movement speed of the progressive frame can adapt to different taper parameters of different products.

[0008] Preferably, the planet carrier and the outer gear ring of the planetary reducer are rotatably arranged on the progressive frame, the progressive frame is provided with a guide rod, the guide rod is slidingly arranged in the linear bearing, the progressive frame is further provided with a fork, the sun shaft of the planetary reducer is rotatably arranged in the fork, and the advancing assembly is rotatably arranged in the fork.

[0009] Further, the segmental driving mechanism and the bottom support assembly are arranged on the bottom plate, and the adjustable transmission mechanism is arranged between the planetary reducer and the segmental driving mechanism.

[0010] The screw rod and the planet carrier of the planetary reducer are connected, so that when the sun shaft of the planetary reducer rotates, the screw rod can rotate at the same time, and the transmission ratio between the screw rod and the planetary reducer is controlled by the rotation speed of the outer gear ring of the planetary reducer. On the one hand, the fork can be moved closer to each other while the workpiece is moving, and on the other hand, the adjustable transmission ratio can adapt to the surface taper of different workpieces.

[0011] Preferably, the advancing assembly comprises an advancing shaft, an advancing wheel, a driving bevel gear and a driven bevel gear, the advancing shaft is rotatably arranged in the fork, the advancing wheel and the driven bevel gear are fixedly connected to the advancing shaft, the driving bevel gear is fixedly connected to the sun shaft of the planetary reducer, and the driving bevel gear and the driven bevel gear are in meshing transmission.

[0012] The advancing wheel not only has the functions of extruding the workpiece and controlling the size of the weld, but also can control the axial movement of the workpiece through its own rotation.

[0013] Further, the segmental driving mechanism comprises a driving assembly and a synchronous assembly, the driving assembly is arranged on the bottom plate, and the synchronous assembly is symmetrically arranged at both ends of the driving assembly.

[0014] Preferably, the adjustable transmission mechanism comprises a driving bevel gear set, a driven bevel gear set and a conical belt, the driving bevel gear set is arranged at the end of the synchronous assembly, the driven bevel gear set is arranged on the outer gear ring of the planetary reducer, and the conical belt is arranged between the driving bevel gear set and the driven bevel gear set.

[0015] The motion transmitted by the adjustable transmission mechanism is not used to drive the screw transmission transverse movement assembly, but is used to control the rotation of the gear ring of the planetary reducer through a structure similar to the CVT transmission, so as to adjust the transmission ratio between the sun shaft and the planet carrier of the planetary reducer, so that it can flexibly match the taper of different products.

[0016] As a further preferred embodiment of the present application, the driving assembly comprises a driving spindle, the synchronization assembly comprises a compensation spindle, a synchronization wheel and a synchronization belt, the compensation spindle is symmetrically arranged at both ends of the driving spindle, the compensation spindle can axially slide relative to the driving spindle, a shift fork is further arranged on the progressive frame, the compensation spindle is rotatably arranged in the shift fork, the synchronization wheel is fixedly connected to the compensation spindle, and the synchronization belt is arranged between the synchronization wheel and the driving bevel gear.

[0017] The compensation spindle can rotate following the driving spindle and slide laterally following the shift fork, so that the synchronization belt and the conical belt are prevented from tilting or falling off during the lateral movement of the progressive frame.

[0018] Further, the driving bevel gear set comprises a flange plate, a first fixed cone plate, a first movable cone plate and an adjusting top cylinder, the flange plate is fixedly connected to the end of the compensation spindle, the first fixed cone plate is fixedly connected to the flange plate, a flange shaft is arranged on the flange plate, the first movable cone plate can axially slide relative to the flange shaft, the adjusting top cylinder is in threaded transmission with the flange shaft, the adjusting top cylinder abuts against the first movable cone plate, and the conical belt is rotatably arranged between the first fixed cone plate and the first movable cone plate.

[0019] As a preferred embodiment, the driven bevel gear set comprises a second fixed cone plate, a second movable cone plate and a pre-tightening spring, the second fixed cone plate is fixedly connected to the outer gear ring of the planetary reducer, the second movable cone plate can axially slide relative to the second fixed cone plate, the pre-tightening spring is arranged between the outer edge of the second fixed cone plate and the second movable cone plate, and the conical belt is rotatably arranged between the second fixed cone plate and the second movable cone plate.

[0020] As a further preferred embodiment of the present application, the driving assembly further comprises a driving shaft support and a driving motor, the driving shaft support is arranged on the bottom plate, the driving spindle is rotatably arranged in the driving shaft support, the driving motor is arranged on the bottom plate, a driving gear is arranged on the output shaft of the driving motor, a driven gear is arranged on the driving spindle, and the driven gear and the driving gear are in meshing transmission.

[0021] Further, the bottom support assembly comprises a bottom support support, a swing frame and a support roller, the bottom support support is arranged on the bottom plate, the swing frame is rotatably arranged in the bottom support support, and the support roller is rotatably arranged in the swing frame.

[0022] The angle of the swing frame can be automatically adjusted following the workpiece, when the diameter of the workpiece changes, the central axis of the workpiece also changes in elevation, but the traveling wheel has a certain longitudinal height, so that the clamping effect on the workpiece can be always maintained, and the top of the workpiece is further provided with a roller and a welding gun which can automatically abut against the workpiece through a spring.

[0023] The application further provides a method for using the welding production device for a street lamp pole, mainly comprising the following steps.

[0024] Step one: the workpiece is placed on the supporting roller, clamped by the two traveling wheels, and then the driving motor is started to drive the main shaft and the compensation shaft to rotate, which drives the traveling wheels to rotate through the synchronous belt and the synchronous wheel, so that the workpiece is axially pushed in the initial state due to the rolling contact between the traveling wheels and the workpiece;

[0025] Step two: the power is transmitted to the screw through the planetary reducer at the same time, and the screw rotates to push the progressive rack to slide towards the workpiece in cooperation with the nut, and the distance between the two traveling wheels is continuously reduced during the axial movement of the workpiece, so that the traveling wheels can limit the two sides of the workpiece, so that the width of the weld is maintained within a certain range;

[0026] Step three: the spline fit can be used between the above-mentioned parts capable of axial movement, the driving motor first rotates the driving shaft and the compensation shaft through the meshing of the driven gear and the driving gear, the compensation shaft rotates, on the one hand, the main driving bevel gear rotates through the synchronous wheel and the synchronous belt, and then the traveling wheel rotates, and the sun gear of the planetary reducer also rotates, on the other hand, the outer ring gear of the planetary reducer rotates through the adjustable transmission mechanism;

[0027] Step four: when the sun gear and the outer ring gear of the planetary reducer rotate stably, the planetary carrier of the planetary reducer and the screw also rotate controllably, according to the taper data of the product, the proportional relationship between the traveling movement of the workpiece and the contraction movement of the progressive rack is set, at this time, only by rotating the top cylinder to change the distance between the first fixed cone disc and the first movable cone disc, and slowly rotating the driving bevel gear set and the driven bevel gear set, the equivalent diameter of the driving bevel gear set and the driven bevel gear set can be changed, and then the transmission ratio between the outer ring gear of the planetary reducer and the compensation shaft can be changed;

[0028] Step five: the transmission ratio between the traveling wheel and the screw is controlled by the planetary reducer, so that the progressive rack can be uniformly tightened during the uniform movement of the workpiece, and the transmission ratio of the planetary reducer can be actively adjusted through the adjustable transmission mechanism, so as to adapt to the taper of different workpieces.

[0029] The application has the following beneficial effects by adopting the above structure:

[0030] (1) This scheme realizes the technical effect of one driving motor controlling the workpiece movement and the progressive rack shrinkage by series power transmission; in this process, the transmission ratio of the planetary reducer can be preset through the adjustable transmission mechanism, so that the transverse speed of the progressive rack can adapt to different taper parameters of different products.

[0031] (2) The screw rod and the planetary carrier of the planetary reducer are connected, so that the sun shaft of the planetary reducer can rotate while rotating the screw rod, and the transmission ratio between the two is controlled by the outer gear ring speed of the planetary reducer. On the one hand, the fork frame can be moved closer to each other while the workpiece is moving, and on the other hand, the adjustable transmission ratio can adapt to the surface taper of different workpieces.

[0032] (3) The running wheel not only has the function of extruding the workpiece and controlling the size of the weld, but also can control the axial movement of the workpiece through its own rotation.

[0033] (4) The motion transmitted by the adjustable transmission mechanism is not used to drive the screw transmission transverse assembly, but through a structure similar to the CVT transmission, the gear ring of the planetary reducer is controlled to rotate, and then the transmission ratio between the sun shaft and the planetary carrier of the planetary reducer is adjusted, so that it can flexibly match the taper of different products.

[0034] (5) The compensation shaft can rotate while following the driving main shaft and slide laterally while following the shift fork, so as to avoid the inclination or falling off of the synchronous belt and the conical belt during the transverse movement of the progressive rack.

[0035] (6) The angle of the swing frame can be automatically adjusted with the workpiece, and when the diameter of the workpiece changes, the center axis of the workpiece will also change in elevation. However, since the running wheel has a certain longitudinal height, it can always maintain the clamping effect on the workpiece. The top of the workpiece is also provided with a roller and a welding gun that can automatically resist the workpiece through a spring. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 A perspective view of a welding production device for a street lamp pole is proposed for the invention;

[0037] Figure 2 A front view of a welding production device for a street lamp pole is proposed for the invention;

[0038] Figure 3 A left view of a welding production device for a street lamp pole is proposed for the invention;

[0039] Figure 4 A top view of a welding production device for a street lamp pole is proposed for the invention;

[0040] Figure 5 Fig. 1 is a perspective view of a welding production device for a street lamp pole according to the present application; Figure 3 Fig. 2 is a sectional view along the section line A-A in Fig. 1;

[0041] Figure 6 Fig. 3 is a sectional view along the section line B-B in Fig. 1; Figure 2

[0042] Figure 7 Fig. 4 is a schematic view of a semi-section structure of a welding production device for a street lamp pole according to the present application;

[0043] Figure 8 Fig. 5 is a sectional view along the section line C-C in Fig. 4; Figure 7

[0044] Figure 9 Fig. 6 is a sectional view along the section line D-D in Fig. 4; Figure 7

[0045] Figure 10 Fig. 7 is a sectional view along the section line E-E in Fig. 4; Figure 5

[0046] Figure 11 Fig. 8 is a sectional view along the section line F-F in Fig. 4; Figure 5

[0047] Wherein, 1, progressive inclined surface limiting mechanism, 2, paragraph type driving mechanism, 3, adjustable transmission mechanism, 4, bottom support assembly, 5, bottom plate, 6, progressive rack, 7, planetary reducer, 8, threaded transmission transverse moving assembly, 9, advancing assembly, 10, fork, 11, guide rod, 12, shift fork, 13, fixed rack, 14, linear bearing, 15, nut, 16, screw rod, 17, advancing shaft, 18, advancing wheel, 19, driving bevel gear, 20, driven bevel gear, 21, driving assembly, 22, synchronization assembly, 23, driving main shaft, 24, driving shaft support, 25, driving motor, 26, compensation shaft, 27, synchronization wheel, 28, synchronization belt, 29, driven gear, 30, driving gear, 31, driving bevel gear set, 32, driven bevel gear set, 33, conical belt, 34, flange plate, 35, first fixed cone plate, 36, first movable cone plate, 37, adjusting top cylinder, 38, second fixed cone plate, 39, second movable cone plate, 40, pre-tightening spring, 41, bottom support support, 42, swing frame, 43, supporting roller, 44, flange shaft.

[0048] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of this specification, illustrate embodiments of the present application, and together with the description serve to explain the present application, and do not limit the present application in any manner. DETAILED DESCRIPTION

[0049] ​​​​​With reference to the accompanying drawings, the technical solutions in the embodiments of the present application will be clearly and completely described below, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments; based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work belong to the protection scope of the present application.

[0050] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0051] As shown in Figures 1-11 The present application proposes a welding production device for street lamp poles, which comprises a progressive slope limiting mechanism 1, a sectional driving mechanism 2, an adjustable transmission mechanism 3, a bottom support assembly 4 and a bottom plate 5. The progressive slope limiting mechanism 1 comprises a progressive rack 6, a planetary reducer 7, a screw transmission horizontal moving assembly 8 and a traveling assembly 9. The screw transmission horizontal moving assembly 8 comprises a fixed rack 13 and a screw rod 16. The fixed rack 13 is arranged on the bottom plate 5. Linear bearings 14 are arranged in a ring shape on the fixed rack 13. A nut 15 is arranged at the center position of the fixed rack 13. The nut 15 and the screw rod 16 are threadedly connected. The screw rod 16 is connected with the planetary carrier of the planetary reducer 7.

[0052] The present scheme realizes the technical effect that one driving motor 25 controls the movement of the workpiece and the contraction of the progressive rack 6 through series power transmission. In this process, the transmission ratio of the planetary reducer 7 can be preset through the adjustable transmission mechanism 3, so that the horizontal moving speed of the progressive rack 6 can adapt to different taper parameters of different products.

[0053] The planetary carrier and the outer gear ring of the planetary reducer 7 are both rotationally arranged on the progressive rack 6. A guide rod 11 is arranged on the progressive rack 6. The guide rod 11 is slidingly clamped in the linear bearing 14. A fork 10 is also arranged on the progressive rack 6. The sun shaft of the planetary reducer 7 is rotationally arranged in the fork 10. The traveling assembly 9 is rotationally arranged in the fork 10.

[0054] The sectional driving mechanism 2 and the bottom support assembly 4 are both arranged on the bottom plate 5. The adjustable transmission mechanism 3 is arranged between the planetary reducer 7 and the sectional driving mechanism 2.

[0055] The screw rod 16 and the planet carrier of the planetary reducer 7 are connected, so that the sun shaft of the planetary reducer 7 can rotate while carrying the screw rod 16 at the same time, and the transmission ratio between the two is controlled by the rotation speed of the outer gear ring of the planetary reducer 7. On the one hand, the fork frames 10 can be moved closer to each other while the workpiece is moving, and on the other hand, the adjustable transmission ratio can adapt to the surface taper of different workpieces.

[0056] The advancing assembly 9 comprises an advancing shaft 17, an advancing wheel 18, a driving bevel gear 19 and a driven bevel gear 20. The advancing shaft 17 is rotatably arranged in the fork frame 10, the advancing wheel 18 and the driven bevel gear 20 are fixedly connected to the advancing shaft 17, the driving bevel gear 19 is fixedly connected to the sun shaft of the planetary reducer 7, and the driving bevel gear 19 and the driven bevel gear 20 are in meshing transmission.

[0057] The advancing wheel 18 not only has the functions of extruding the workpiece and controlling the size of the weld, but also can control the axial movement of the workpiece through its own rotation.

[0058] The sectional driving mechanism 2 comprises a driving assembly 21 and a synchronization assembly 22. The driving assembly 21 is arranged on the bottom plate 5, and the synchronization assembly 22 is symmetrically arranged at both ends of the driving assembly 21.

[0059] The driving assembly 21 comprises a driving main shaft 23, and the synchronization assembly 22 comprises a compensation shaft 26, a synchronization wheel 27 and a synchronization belt 28. The compensation shaft 26 is symmetrically arranged at both ends of the driving main shaft 23, and the compensation shaft 26 can axially slide relative to the driving main shaft 23. The progressive frame 6 is further provided with a shift fork 12, the compensation shaft 26 is rotatably arranged in the shift fork 12, the synchronization wheel 27 is fixedly connected to the compensation shaft 26, and the synchronization belt 28 is arranged between the synchronization wheel 27 and the driving bevel gear 19.

[0060] The compensation shaft 26 can rotate while following the rotation of the driving main shaft 23, and can slide laterally while following the shift fork 12, so that the synchronization belt 28 and the conical belt 33 are prevented from tilting or falling off during the lateral movement of the progressive frame 6.

[0061] The driving assembly 21 further comprises a driving shaft support 24 and a driving motor 25. The driving shaft support 24 is arranged on the bottom plate 5, and the driving main shaft 23 is rotatably arranged in the driving shaft support 24. The driving motor 25 is arranged on the bottom plate 5, and a driving gear 30 is arranged on the output shaft of the driving motor 25. A driven gear 29 is arranged on the driving main shaft 23, and the driven gear 29 and the driving gear 30 are in meshing transmission.

[0062] The adjustable transmission mechanism 3 comprises a driving bevel gear set 31, a driven bevel gear set 32 and a conical belt 33. The driving bevel gear set 31 is arranged at the end of the synchronization assembly 22, the driven bevel gear set 32 is arranged on the outer gear ring of the planetary reducer 7, and the conical belt 33 is arranged between the driving bevel gear set 31 and the driven bevel gear set 32.

[0063] The movement transmitted by the adjustable transmission mechanism 3 is not used to drive the threaded transmission transverse moving assembly 8, but is used to rotate the ring gear of the planetary reducer 7 through a structure similar to a CVT transmission, so as to adjust the transmission ratio between the sun shaft and the planet carrier of the planetary reducer 7, so that it can flexibly match the taper of different products.

[0064] The driving cone gear set 31 includes a flange plate 34, a first fixed cone plate 35, a first movable cone plate 36, and an adjusting top cylinder 37. The flange plate 34 is fixedly connected to the end of the compensation shaft 26. The first fixed cone plate 35 is fixedly connected to the flange plate 34. The flange plate 34 is provided with a flange shaft 44. The first movable cone plate 36 can axially slide relative to the flange shaft 44. The adjusting top cylinder 37 is in threaded transmission with the flange shaft 44. The adjusting top cylinder 37 abuts against the first movable cone plate 36. The conical belt 33 is rollingly arranged between the first fixed cone plate 35 and the first movable cone plate 36.

[0065] The driven cone gear set 32 includes a second fixed cone plate 38, a second movable cone plate 39, and a pre-tightening spring 40. The second fixed cone plate 38 is fixedly connected to the outer ring gear of the planetary reducer 7. The second movable cone plate 39 can axially slide relative to the second fixed cone plate 38. The pre-tightening spring 40 is arranged between the outer edge of the second fixed cone plate 38 and the second movable cone plate 39. The conical belt 33 is rollingly arranged between the second fixed cone plate 38 and the second movable cone plate 39.

[0066] The bottom support assembly 4 includes a bottom support bracket 41, a swing frame 42, and a support roller 43. The bottom support bracket 41 is arranged on the bottom plate 5. The swing frame 42 is rotationally arranged in the bottom support bracket 41. The support roller 43 is rotationally arranged in the swing frame 42.

[0067] The angle of the swing frame 42 can automatically adjust along with the workpiece. When the diameter of the workpiece changes, the central axis of the workpiece also changes in elevation. However, since the traveling wheel 18 has a certain longitudinal height, the clamping effect on the workpiece can always be maintained. The top of the workpiece is also provided with a roller and a welding gun that can automatically abut against the workpiece through a spring.

[0068] In specific use, first, the user needs to place the workpiece on the support roller 43 and clamp it through the two traveling wheels 18. Then, the driving motor 25 is started to drive the main shaft 23 and the compensation shaft 26 to rotate. Through the synchronous belt 28 and the synchronous wheel 27, the driving cone gear 19 is rotated together, thereby rotating the traveling wheel 18. In the initial state, since the traveling wheel 18 is in rolling contact with the workpiece, the workpiece is axially pushed;

[0069] Meanwhile, power is transmitted to the screw rod 16 through the planetary reducer 7, and when the screw rod 16 rotates, the progressive frame 6 is pushed to slide towards the workpiece in cooperation with the nut 15. During the axial movement of the workpiece, the distance between the two travel wheels 18 is continuously reduced, and the travel wheels 18 can limit the workpiece on both sides, so as to maintain the width of the weld within a certain range.

[0070] The above-mentioned axially movable parts can be matched in the form of spline, etc. The driving motor 25 first rotates the main shaft 23 and the compensation shaft 26 together through the meshing of the driven gear 29 and the driving gear 30. When the compensation shaft 26 rotates, on the one hand, the driving bevel gear 19 rotates through the synchronous wheel 27 and the synchronous belt 28, and then the travel wheel 18 rotates, and at the same time, the sun gear of the planetary reducer 7 also rotates, and on the other hand, the outer ring of the planetary reducer 7 rotates through the adjustable transmission mechanism 3;

[0071] When the sun gear and the outer ring of the planetary reducer 7 rotate stably, the planetary carrier of the planetary reducer 7 and the screw rod 16 also rotate stably and controllably. According to the taper data of the product, the proportional relationship between the travel movement of the workpiece and the shrinkage movement of the progressive frame 6 is set. At this time, only by rotating the adjusting top cylinder 37 to change the distance between the first fixed cone disc 35 and the first movable cone disc 36, and at the same time, slowly rotating the driving bevel gear set 31 and the driven bevel gear set 32, the equivalent diameter of the driving bevel gear set 31 and the driven bevel gear set 32 can be changed, and then the transmission ratio between the outer ring of the planetary reducer 7 and the compensation shaft 26 can be changed.

[0072] The transmission ratio between the travel wheel 18 and the screw rod 16 is controlled by the planetary reducer 7, so that when the transmission ratio of the planetary reducer 7 is set, the progressive frame 6 can be uniformly tightened during the uniform travel of the workpiece, and the transmission ratio of the planetary reducer 7 can be actively adjusted through the adjustable transmission mechanism 3, so as to adapt to the taper of different workpieces.

[0073] It should be noted that in this text, relational terms such as first and second are used only to distinguish one entity or operation from another, and do not necessarily require or imply that there is any such actual relationship or order between these entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0074] The above describes the present application and its embodiments, which are not limited, and the drawings only show one of the embodiments of the present application, and the actual structure is not limited thereto. In general, if a person skilled in the art is inspired thereby, without departing from the purpose of the present application, without creative design, similar structure and embodiments of the technical solution are not creative, and should belong to the protection scope of the present application.

Claims

1. A welded production device for a street light pole, characterized by: The application relates to a progressive slope limiting mechanism (1), a paragraph type driving mechanism (2), an adjustable transmission mechanism (3), a bottom support assembly (4) and a bottom plate (5), wherein the progressive slope limiting mechanism (1) comprises a progressive rack (6), a planetary reducer (7), a screw transmission horizontal moving assembly (8) and a traveling assembly (9); the screw transmission horizontal moving assembly (8) comprises a fixed rack (13) and a screw rod (16); the fixed rack (13) is arranged on the bottom plate (5); linear bearings (14) are uniformly arranged in a ring shape on the fixed rack (13); a nut (15) is arranged at the center position of the fixed rack (13); the nut (15) is in threaded connection with the screw rod (16); and the screw rod (16) is connected with the planet carrier of the planetary reducer (7). The planet carrier and the outer gear ring of the planetary reducer (7) are both rotationally arranged on the progressive rack (6); a guide rod (11) is arranged on the progressive rack (6); the guide rod (11) is slidingly clamped in the linear bearing (14); a fork (10) is further arranged on the progressive rack (6); the sun shaft of the planetary reducer (7) is rotationally arranged in the fork (10); and the traveling assembly (9) is rotationally arranged in the fork (10). The paragraph type driving mechanism (2) and the bottom support assembly (4) are both arranged on the bottom plate (5); and the adjustable transmission mechanism (3) is arranged between the planetary reducer (7) and the paragraph type driving mechanism (2). The traveling assembly (9) comprises a traveling shaft (17), a traveling wheel (18), a driving bevel gear (19) and a driven bevel gear (20); the traveling shaft (17) is rotationally arranged in the fork (10); the traveling wheel (18) and the driven bevel gear (20) are fixedly connected to the traveling shaft (17); the driving bevel gear (19) is fixedly connected to the sun shaft of the planetary reducer (7); and the driving bevel gear (19) and the driven bevel gear (20) are in mesh transmission. The paragraph type driving mechanism (2) comprises a driving assembly (21) and a synchronization assembly (22); the driving assembly (21) is arranged on the bottom plate (5); and the synchronization assembly (22) is symmetrically arranged at the two ends of the driving assembly (21). The adjustable transmission mechanism (3) comprises a driving bevel gear set (31), a driven bevel gear set (32) and a conical belt (33); the driving bevel gear set (31) is arranged at the end of the synchronization assembly (22); the driven bevel gear set (32) is arranged on the outer gear ring of the planetary reducer (7); and the conical belt (33) is arranged between the driving bevel gear set (31) and the driven bevel gear set (32). The driving assembly (21) comprises a driving spindle (23), the synchronous assembly (22) comprises a compensation spindle (26), a synchronous wheel (27) and a synchronous belt (28), the compensation spindle (26) is symmetrically arranged at two ends of the driving spindle (23), the compensation spindle (26) can axially slide relative to the driving spindle (23), a yoke (12) is further arranged on the progressive frame (6), the compensation spindle (26) is rotatably arranged in the yoke (12), the synchronous wheel (27) is fixedly connected to the compensation spindle (26), and the synchronous belt (28) is arranged between the synchronous wheel (27) and the driving bevel gear (19). The driving assembly (21) further comprises a driving shaft support (24) and a driving motor (25), the driving shaft support (24) is arranged on the bottom plate (5), the driving spindle (23) is rotatably arranged in the driving shaft support (24), the driving motor (25) is arranged on the bottom plate (5), a driving gear (30) is arranged on an output shaft of the driving motor (25), a driven gear (29) is arranged on the driving spindle (23), and the driven gear (29) and the driving gear (30) are in meshing transmission.

2. A welded production device for a street light pole according to claim 1, characterized in that: The driving assembly (21) further comprises a driving shaft support (24) and a driving motor (25), the driving shaft support (24) is arranged on the bottom plate (5), the driving spindle (23) is rotatably arranged in the driving shaft support (24), the driving motor (25) is arranged on the bottom plate (5), a driving gear (30) is arranged on an output shaft of the driving motor (25), a driven gear (29) is arranged on the driving spindle (23), and the driven gear (29) and the driving gear (30) are in meshing transmission.

3. A welded production device for a street light pole according to claim 2, characterized in that: The driving assembly (21) further comprises a driving shaft support (24) and a driving motor (25), the driving shaft support (24) is arranged on the bottom plate (5), the driving spindle (23) is rotatably arranged in the driving shaft support (24), the driving motor (25) is arranged on the bottom plate (5), a driving gear (30) is arranged on an output shaft of the driving motor (25), a driven gear (29) is arranged on the driving spindle (23), and the driven gear (29) and the driving gear (30) are in meshing transmission.

4. A welded production device for a street light pole according to claim 3, characterized in that: The bottom support assembly (4) comprises a bottom support support (41), a swing frame (42) and a support roller (43), the bottom support support (41) is arranged on the bottom plate (5), the swing frame (42) is rotatably arranged in the bottom support support (41), and the support roller (43) is rotatably arranged in the swing frame (42).

5. A method of using a welded production device for a street light pole according to claim 4, characterized in that, The method comprises the following steps: The driving assembly (21) comprises a driving spindle (23), the synchronous assembly (22) comprises a compensation spindle (26), a synchronous wheel (27) and a synchronous belt (28), the compensation spindle (26) is symmetrically arranged at two ends of the driving spindle (23), the compensation spindle (26) can axially slide relative to the driving spindle (23), a yoke (12) is further arranged on the progressive frame (6), the compensation spindle (26) is rotatably arranged in the yoke (12), the synchronous wheel (27) is fixedly connected to the compensation spindle (26), and the synchronous belt (28) is arranged between the synchronous wheel (27) and the driving bevel gear (19). The driving assembly (21) further comprises a driving shaft support (24) and a driving motor (25), the driving shaft support (24) is arranged on the bottom plate (5), the driving spindle (23) is rotatably arranged in the driving shaft support (24), the driving motor (25) is arranged on the bottom plate (5), a driving gear (30) is arranged on an output shaft of the driving motor (25), a driven gear (29) is arranged on the driving spindle (23), and the driven gear (29) and the driving gear (30) are in meshing transmission. The driving assembly (21) further comprises a driving shaft support (24) and a driving motor (25), the driving shaft support (24) is arranged on the bottom plate (5), the driving spindle (23) is rotatably arranged in the driving shaft support (24), the driving motor (25) is arranged on the bottom plate (5), a driving gear (30) is arranged on an output shaft of the driving motor (25), a driven gear (29) is arranged on the driving spindle (23), and the driven gear (29) and the driving gear (30) are in meshing transmission. The bottom support assembly (4) comprises a bottom support support (41), a swing frame (42) and a support roller (43), the bottom support support (41) is arranged on the bottom plate (5), the swing frame (42) is rotatably arranged in the bottom support support (41), and the support roller (43) is rotatably arranged in the swing frame (42). The method comprises the following steps: Step one: the workpiece is placed on the supporting roller (43), clamped by two traveling wheels (18), and then the driving motor (25) is started to drive the main shaft (23) and the compensation shaft (26) to rotate, which in turn drives the main drive bevel gear (19) to rotate through the synchronous belt (28) and the synchronous wheel (27), and then drives the traveling wheel (18) to rotate. In the initial state, the traveling wheel (18) is in rolling contact with the workpiece, so it will push the workpiece axially; Step two: at the same time, power is transmitted to the screw rod (16) through the planetary reducer (7), and the screw rod (16) rotates to push the progressive rack (6) to slide towards the workpiece under the cooperation with the nut (15). During the axial movement of the workpiece, the distance between the two traveling wheels (18) continuously decreases, and the traveling wheels (18) can keep limiting the workpiece on both sides, so as to maintain the width of the weld within a certain range; Step three: the driving motor (25) first drives the main shaft (23) and the compensation shaft (26) to rotate through the meshing of the driven gear (29) and the driving gear (30), and the compensation shaft (26) rotates to drive the main drive bevel gear (19) to rotate through the synchronous belt (28) and the synchronous wheel (27), and then drives the traveling wheel (18) to rotate, while the sun gear of the planetary reducer (7) also rotates, and the outer gear of the planetary reducer (7) rotates through the adjustable transmission mechanism (3); Step four: when the sun gear and the outer gear of the planetary reducer (7) rotate stably, the planetary carrier of the planetary reducer (7) and the screw rod (16) also rotate controllably. According to the taper data of the product, the proportional relationship between the traveling motion of the workpiece and the contraction motion of the progressive rack (6) is set. At this time, only by rotating the adjusting top cylinder (37) to change the distance between the first fixed cone disc (35) and the first movable cone disc (36), and slowly rotating the driving cone wheel set (31) and the driven cone wheel set (32), the equivalent diameter of the driving cone wheel set (31) and the driven cone wheel set (32) can be changed, and then the transmission ratio between the outer gear of the planetary reducer (7) and the compensation shaft (26) can be changed; Step five: the transmission ratio between the traveling wheel (18) and the screw rod (16) is controlled by the planetary reducer (7), so that the progressive rack (6) can be uniformly tightened during the uniform movement of the workpiece, and the transmission ratio of the planetary reducer (7) can be actively adjusted through the adjustable transmission mechanism (3), so as to adapt to the taper of different workpieces.

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