A high frequency welding device in a lamp pole groove

Abstract

The present application provides a high-frequency welding device in a lamp pole slot, which relates to the technical field of lamp pole welding. The device includes: a mounting tube, whose diameter is smaller than the shaft diameter of the lamp pole; a shaping mechanism, which is mounted on the mounting tube, and includes two pairs of telescopic rods arranged on the outer wall of the mounting tube, the ends of the telescopic rods are connected to guide wheels, and springs are sleeved on the telescopic rods; a transmission mechanism, which is arranged inside the mounting tube; a first pressing mechanism, which is arranged between any two telescopic rods in each group of the shaping mechanism; a second pressing mechanism, which is arranged at one end of the shaping mechanism, and includes extrusion rollers respectively located on both sides of the axis of the mounting tube; an induction coil, which is arranged between the shaping mechanism and the second pressing mechanism; a cooling mechanism, which includes a water outlet pipe, and water blowing pipes are respectively arranged on both sides of the induction coil. The device can effectively avoid the problem of misalignment of the two ends of the steel plate, improve the welding quality, ensure the roundness of the lamp pole, and can also effectively prevent cooling water from flowing into the mounting slot between the induction coils, further improving the welding quality.

Description

Technical Field

[0001] The present application belongs to the technical field of lamp pole production, specifically relates to lamp pole welding technology, and in particular to a high-frequency welding device in a lamp pole groove. Background Art

[0002] With the continuous deepening of smart city construction, smart light poles have become an important part of urban infrastructure. Fig.12 As shown, the lamp pole 2 is generally provided with a mounting groove 21 arranged along the length direction for installing various traffic equipment, public security equipment, lighting equipment, communication equipment, etc., which can reduce duplicate construction and save construction costs; realize grid power sharing, energy saving and consumption reduction; optimize urban space layout and beautify the city appearance.

[0003] The cross-sectional shape of the mounting groove 21 is generally square, dovetail, etc. Fig.11 As shown, when producing such a lamp pole 2, the steel plate is generally first rolled into a circle by a forming machine, and the two ends of the steel plate are respectively bent into the shape of the required groove, and then the two ends of the steel plate are heated and melted by the induction coil 7 of the high-frequency welding machine, and then the two sides of the lamp pole 2 are directly pressed toward the axis of the lamp pole 2 by the extrusion roller 61, so that the two ends of the lamp pole 2 are welded together and a mounting groove 21 arranged along the length of the lamp pole 2 is formed. At the same time, during welding, cooling water is also introduced into the mounting groove 21 of the lamp pole 2 on both sides of the induction coil 7 to reduce the welding stress and deformation of the lamp pole 2 on both sides of the induction coil 7.

[0004] In actual production, it is found that there are some problems when the lamp pole 2 is pressed directly by the squeezing roller 61. When the squeezing roller 61 presses the two sides of the lamp pole 2, the two ends of the steel plate may be misaligned, such as Fig.11 As shown, the welding quality is affected, and when the extrusion roller 61 is used for pressing, the steel plates on both sides may be squeezed excessively toward the axis of the lamp pole 2, resulting in a decrease in the roundness of the welded lamp pole 2; at the same time, cooling water may flow into the mounting groove 21 of the lamp pole 2 between the induction coils 7, thereby causing welding failure. Summary of the invention

[0005] In order to solve the deficiencies of the above-mentioned prior art, the present application provides a high-frequency welding device in the groove of a lamp pole, which changes the method of direct pressing through an extrusion roller, can effectively avoid the problem of misalignment of the two ends of the steel plate, improve the welding quality, ensure the roundness of the lamp pole, and at the same time effectively prevent cooling water from flowing into the installation groove between the induction coils, further improving the welding quality.

[0006] In order to achieve the above object, the present invention adopts the following technologies:

[0007] A high-frequency welding device in a lamp pole groove, comprising:

[0008] The installation tube has a diameter smaller than the shaft diameter of the lamp pole;

[0009] A shaping mechanism, at least one group, is installed on the mounting tube and is used to tighten the inner wall of the lamp pole, which includes two pairs of telescopic rods arranged on the outer wall of the mounting tube, the axes of each pair of telescopic rods are arranged in a colinear manner, the axes of the telescopic rods are perpendicularly intersected with the axis of the mounting tube, the angle formed by the axes of the two pairs of telescopic rods is a right angle, each telescopic rod is arranged to move along its own axis, the axes of the two pairs of telescopic rods are arranged at a predetermined distance along the axis direction of the mounting tube, the ends of the telescopic rods are connected to guide wheels, the guide wheels in each group of shaping mechanisms are located in the same plane, and a spring is sleeved on the telescopic rod;

[0010] The transmission mechanism, the number of which matches that of the shaping mechanism, is arranged inside the mounting tube and is used to transmit power between the telescopic rods in each group of shaping mechanisms, so that the telescopic rods are extended or retracted to the same length at the same time;

[0011] The first pressing mechanism is arranged between any two telescopic rods in each group of shaping mechanisms, and comprises two pressing blocks arranged to move toward each other, the moving directions of the two pressing blocks are perpendicular to the axis of the mounting tube, the two pressing blocks are arranged coplanarly with the guide wheels in the same group of shaping mechanisms, the structure of the pressing blocks is adapted to the shape of the lamp post groove, and the distances between the two pressing blocks and their corresponding adjacent telescopic rods are equal;

[0012] The second pressing mechanism is arranged at one end of the shaping mechanism, and comprises squeezing rollers respectively located on both sides of the axis of the installation tube and rotating around their own axes, the axes of the two squeezing rollers are parallel to each other and perpendicular to the axis of the installation tube, and the two squeezing rollers are arranged to move in a direction perpendicular to their own axes;

[0013] The induction coil is arranged between the shaping mechanism and the second pressing mechanism;

[0014] The cooling mechanism includes water outlet pipes arranged on both sides of the induction coil for discharging cooling water into the lamp pole groove. Water blowing pipes are arranged between the corresponding water outlet pipes on both sides of the induction coil for blowing air into the lamp pole groove to prevent cooling water from entering the lamp pole groove between the induction coils.

[0015] Furthermore, the transmission mechanism includes a first guide rod, whose axis is perpendicular to and intersects the axis of the mounting tube, and two moving blocks are slidably sleeved on the first guide rod; connecting rods of equal length are hinged on both sides of the moving block, and their rotation axes are parallel to the axis of the mounting tube; the two connecting rods located on the same side of the moving block are respectively hinged to the other ends of two telescopic rods arranged with colinear axes, and their rotation axes are parallel to the axis of the mounting tube, and a guide member is provided between the moving blocks of the two groups of transmission mechanisms, which is used to transmit power between the moving blocks of the two groups of transmission mechanisms so that the moving distances of the moving blocks in each transmission mechanism are equal.

[0016] Furthermore, the guide member includes a matching rod arranged on the moving block of the transmission mechanism and perpendicular to the axis of the mounting tube, and a guide frame arranged on the moving block of another transmission mechanism. The angle formed between the matching rod and the first guide rod is forty-five degrees. The direction of the guide frame is consistent with the axial direction of the first guide rod. A guide block that matches the guide frame is formed at the end of the matching rod.

[0017] Furthermore, a mounting platform is provided on the mounting tube between any two adjacent telescopic rods, and its top surface is parallel to the axis of the mounting tube. A second guide rod arranged perpendicular to the axis of the mounting tube is mounted on the top surface of the mounting platform. The angle formed by the second guide rod and the adjacent telescopic rod is forty-five degrees, and the two pressure blocks are slidably sleeved on the second guide rod.

[0018] Furthermore, a T-slot is provided on the mounting platform, and the first pressing mechanism also includes a screw arranged in the horizontal part of the T-slot and perpendicular to the axis of the mounting tube. The screw is arranged to rotate around its own axis, and a worm gear is coaxially fixedly installed on the middle part. The axis of the mounting tube is located in the middle of the planes where the two end faces of the worm gear are respectively located. The threads on the screws on both sides of the worm gear have opposite rotation directions. The two pressing blocks are respectively matched with the screws on both sides of the worm gear, and the distance between them and the worm gear is always equal. A worm gear is installed in the vertical part of the T-slot, which is arranged in the direction of the axis of the mounting tube and cooperates with the worm gear. The worm gear is arranged to rotate around its own axis. A motor is provided on the side of the mounting platform, and its driving end is coaxially connected to the worm gear.

[0019] Furthermore, the ends of the telescopic rods are connected to wheel frames, the guide wheels are mounted on the wheel frames, and the springs are connected between the guide seats and the wheel frames.

[0020] Furthermore, each wheel frame is provided with a guide strip arranged along the extension and retraction direction of the corresponding telescopic rod on both sides, and first guide grooves arranged along the extension and retraction direction of the telescopic rods on both sides of the adjacent two telescopic rods are respectively opened on both sides of the mounting platform, and a support frame is provided on the mounting tube between the remaining two adjacent telescopic rods, and second guide grooves arranged along the extension and retraction direction of the telescopic rods on both sides of the adjacent two telescopic rods are respectively opened on both sides of the support frame, and the guide strips on both sides of the wheel frame are respectively matched in the corresponding first guide groove and the second guide groove or in the corresponding two second guide grooves.

[0021] The beneficial effects of the present invention are:

[0022] 1. The transmission mechanism acts on the telescopic rod in the shaping mechanism, and through its own structural design, each telescopic rod is extended or retracted to the same length at the same time. First, the two pressing blocks of the first pressing mechanism level the two ends of the lamp pole so that the two ends are close to each other and located in the same plane. During this period, the guide wheel supports the inner wall of the lamp pole under the action of the telescopic rod and the spring, and plays a positioning role. Then, the two extrusion rollers in the second pressing mechanism press the two ends of the lamp pole heated to a molten state by the induction coil and transport the lamp pole. With the cooperation of the first pressing mechanism, the second pressing mechanism and the shaping mechanism, the problem of end misalignment during lamp pole welding is effectively solved, the welding quality is improved, and the welded lamp pole has a better roundness, thereby improving the quality of lamp pole production;

[0023] 2. Through the setting of the water outlet pipe in the cooling mechanism, the lamp pole mounting grooves on both sides of the induction coil are evenly cooled to reduce welding stress and lamp pole deformation. At the same time, under the action of the water blowing pipe, cooling water can be effectively prevented from entering the mounting groove between the induction coils, further improving the production quality of the lamp pole;

[0024] 3. The transmission mechanism optimizes the structure of the transmission mechanism through the cooperation between the moving block and the first guide rod and the hinged arrangement of the connecting rod, the moving block and the telescopic rod, and under the action of the guide member, making it integral and miniaturized, easy to install inside the mounting tube, and at the same time can effectively avoid the movement interference between the telescopic rods, so as to realize the function of extending or retracting the same length of each telescopic rod at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the main structure of the device of the embodiment of the present application.

[0026] Figure 2 2 is a diagram showing the positional relationship between the device of the embodiment of the present application and the induction coil.

[0027] Figure 3 It is a structural schematic diagram of the shaping mechanism of an embodiment of the present application.

[0028] Figure 4 This is a state diagram of the device of the embodiment of the present application when entering the interior of the lamp pole.

[0029] Figure 5 This is a state diagram of the device of the embodiment of the present application when pressing the lamp pole.

[0030] Figure 6 yes Figure 3 A magnified view of the part in the figure.

[0031] Figure 7 yes Figure 3 A magnified view of the part B in the figure.

[0032] Figure 8 It is a schematic diagram of the structure of the installation tube of the embodiment of the present application.

[0033] Fig. 9 yes Figure 8 A magnified view of the section C in the middle.

[0034] Fig.10 It is a schematic diagram of the structure of the support frame of the embodiment of the present application.

[0035] Fig.11 This is a schematic diagram showing the misalignment of the two ends of a light pole when the light pole is pressed together directly using an extrusion roller.

[0036] Fig.12 This is a schematic diagram of the structure of a normal light pole.

[0037] Figure numerals: 1-mounting tube, 11-mounting platform, 111-matching groove, 112-first guide groove, 113-second guide groove, 12-second guide rod, 13-T-slot, 14-support frame, 2-lamp pole, 21-mounting groove, 3-shaping mechanism, 31-telescopic rod, 32-guide wheel, 33-guide seat, 34-wheel frame, 341-guide strip, 35-spring, 4-transmission mechanism, 41-first guide rod, 42-movable Block, 43-connecting rod, 44-guide piece, 441-matching rod, 442-guide frame, 443-guide block, 5-first pressing mechanism, 51-pressing block, 511-push plate, 512-limiting plate, 52-screw, 53-worm gear, 54-worm, 55-motor, 56-connecting block, 6-second pressing mechanism, 61-extrusion roller, 7-induction coil, 8-cooling mechanism, 81-water outlet pipe, 82-water blowing pipe, 9-conveying roller. DETAILED DESCRIPTION

[0038] To make the objectives, technical solutions and advantages of the embodiments of the present invention more clear, the implementation modes of the present invention are described in detail below with reference to the accompanying drawings. However, the embodiments described in the present invention are only part of the embodiments of the present invention, rather than all the embodiments.

[0039] Example 1

[0040] The present application embodiment provides a high-frequency welding device in a lamp pole groove, such as Figure 1~Figure 3 As shown, it includes: a mounting tube 1, a shaping mechanism 3, a transmission mechanism 4, a first pressing mechanism 5, a second pressing mechanism 6, an induction coil 7 and a cooling mechanism 8.

[0041] Among them, in order to facilitate the installation of the shaping mechanism 3 and the transmission mechanism 4, the mounting tube 1 is a square tube, and the tube diameter of the mounting tube 1 is smaller than the axial diameter of the lamp pole 2; the shaping mechanism 3 is installed on the mounting tube 1, and is used to tighten the inner wall of the lamp pole 2. There is at least one group of shaping mechanisms 3, and the specific number of shaping mechanisms 3 can be set according to the length of the lamp pole pressed at one time. The shaping mechanism 3 includes two pairs of telescopic rods 31 arranged on the outer wall of the mounting tube 1, and the axes of each pair of telescopic rods 31 are arranged in a colinear manner. The axes of the telescopic rods 31 are perpendicular to and pass through the axis of the mounting tube 1. The angle formed by the axes of the two pairs of telescopic rods 31 is a right angle. Each telescopic rod 31 is arranged to move along its own axis, and the axes of the two pairs of telescopic rods 31 are arranged at a predetermined distance along the axis of the mounting tube 1. The ends of the telescopic rods 31 are connected to guide wheels 32, and each guide wheel 32 in each group is located in the same plane. A spring 35 is sleeved on the telescopic rod 31; Figure 8 As shown, when there are multiple groups of shaping mechanisms 3, they are arranged equidistantly along the axis of the mounting tube 1, and the projections of the telescopic rods 31 in each group along the axis of the mounting tube 1 overlap.

[0042] The number of transmission mechanisms 4 matches that of shaping mechanisms 3 , and they are arranged inside the mounting tube 1 and are used to transmit power between the telescopic rods 31 in each group of shaping mechanisms 3 , so that the telescopic rods 31 can be extended or retracted to the same length at the same time.

[0043] The first pressing mechanism 5 is arranged between any two telescopic rods 31 in each group of shaping mechanisms 3, and includes two pressing blocks 51 arranged to move toward each other, and the moving directions of the two pressing blocks 51 are perpendicular to the axis of the mounting tube 1. The two pressing blocks 51 are arranged coplanar with the guide wheels 32 in the same group of shaping mechanisms 3, and the shape of the pressing blocks 51 is adapted to the shape of the groove of the lamp pole 2, and the distances between the two pressing blocks 51 and their corresponding adjacent telescopic rods 31 are equal; Figure 8 As shown, when there are multiple sets of shaping mechanisms 3, the projections of the first pressing mechanisms 5 along the axial direction of the mounting tube 1 all overlap.

[0044] The second pressing mechanism 6 is arranged at one end of the shaping mechanism 3, and includes squeezing rollers 61 which are respectively located on both sides of the axis of the mounting tube 1 and rotate around their own axes. The axes of the two squeezing rollers 61 are parallel to each other and perpendicular to the axis of the mounting tube 1. The two squeezing rollers 61 are movable in a direction perpendicular to their own axes, and the distance between the two squeezing rollers 61 and the axis of the mounting tube 1 is always equal.

[0045] The induction coil 7 is disposed between the shaping mechanism 3 and the second pressing mechanism 6 and utilizes the principles of skin effect and proximity effect to heat the two ends of the lamp pole between the induction coil 7 .

[0046] The cooling mechanism 8 includes water outlet pipes 81 arranged on both sides of the induction coil 7, which are used to discharge cooling water into the groove of the lamp pole 2. Water blowing pipes 82 are respectively arranged between the two sides of the induction coil 7 and the corresponding water outlet pipes 81, which are used to blow air into the installation groove 21 of the lamp pole 2 to prevent cooling water from entering the installation groove 21 of the lamp pole 2 between the induction coils 7.

[0047] When used, the forming machine rolls the steel plate into a round shape, and bends the two ends of the lamp pole 2 into the required groove shape, such as Figure 1~Figure 4 As shown, this embodiment uses a dovetail groove as an example, the two ends of the lamp pole 2 are slightly open to the two sides, and the bent parts at the two ends of the lamp pole 2 are tilted to the two sides; accordingly, the welding device is provided with a conveying roller 9 for conveying the lamp pole 2. Under the action of the conveying roller 9, the lamp pole 2 allows the installation tube 1 to axially enter the interior of the lamp pole 2. When entering, Figure 2 and Figure 4 As shown, the bent parts at both ends of the lamp pole 2 are located between the two pressing blocks 51. Specifically, the pressing block 51 includes a push plate 511 and a limit plate 512. The push plate 511 abuts against the side of the bent part. The bottom surface of the bent part is spaced a predetermined distance from the limit plate 512. The two telescopic rods 31 located below the axis of the mounting tube 1 in the shaping mechanism 3 maintain constant contact with the inner wall of the lamp pole 2.

[0048] like Figure 1~Figure 3 As shown in the figure, when the two ends of the lamp pole 2 are completely located between the two pressing blocks 51, the push plates 511 of the two pressing blocks 51 begin to press against the corresponding bent parts and move towards each other. During the operation of the two push plates 511, the push plates 511 gradually fit with one side of the bent part of the lamp pole 2, and the bottom surface of the bent part of the lamp pole 2 gradually fits with the limit plate 512. The two ends of the lamp pole 2 gradually converge toward the axis of the mounting tube 1, and the inner walls of the two ends of the lamp pole 2 gradually approach the guide wheels 32 on the two telescopic rods 31 above the axis of the mounting tube 1; the inner walls of the two ends of the lamp pole 2 continue to move toward the guide wheels 32 on the two telescopic rods 31 above the axis of the mounting tube 1. The guide wheels 32 are moved closer to the push plate 511, and the bottom surface of the bent portion of the lamp pole 2 is in contact with the limit plate 512, that is, the two ends of the lamp pole 2 are leveled and located in the same plane. The inner wall below the lamp pole 2 is also deformed against the guide wheels 32 on the two telescopic rods 31 below the axis of the mounting tube 1, so that the two telescopic rods 31 are retracted to a predetermined length against the elasticity of the springs 35. Since the four telescopic rods 31 are of equal length and can only be extended or retracted to the same length at the same time, the two telescopic rods 31 above the axis of the mounting tube 1 are also retracted to a predetermined length.

[0049] like Figure 5As shown, since the angles between the two adjacent telescopic rods 31 are both right angles, the push plate 511 continues to push the two ends of the lamp pole 2 to close together, during which the two ends of the lamp pole 2 are always in the same plane. When the inner walls of the two ends of the lamp pole 2 abut against the guide wheels 32 on the two telescopic rods 31 above the axis of the mounting tube 1, the points of action of the guide wheels 32 on the four telescopic rods 31 on the inner wall of the lamp pole 2 are evenly distributed along the circumference of the lamp pole 2, and each spring 35 evenly supports the inner wall of the lamp pole 2, so that the inner wall of the lamp pole 2 is evenly stressed along the circumference. At the same time, the two ends of the lamp pole 2 are spaced at a minimum distance; the conveying roller 9 continues to convey the leveled part of the lamp pole 2 into between the induction coils 7 High-frequency current flows through the metal conductor, and the two ends of the lamp pole 2 that have been leveled are heated and melted by the principles of skin effect and proximity effect. The heated and melted two ends of the lamp pole 2 are then sent by the conveying roller 9 between the two extrusion rollers 61 of the second pressing mechanism 6. Since the distance between the two ends of the lamp pole 2 is small enough, the two extrusion rollers 61 only need to move a short distance toward the axis of the mounting tube 1 to press the melted two ends of the lamp pole 2 together, and greatly reduce the influence of the pressing on the roundness of the lamp pole. At the same time, the extrusion roller 61 sends the lamp pole 2 out, and through the cooperation of the conveying roller 9 and the extrusion roller 61 and moving with the axis of the lamp pole 2, the mounting groove 21 can be continuously welded closed.

[0050] During the operation of the welding device, the water outlet pipes 81 on both sides of the induction coil 7 continuously discharge cooling water into the completed welding installation groove 21 and the bent parts at both ends of the lamp pole 2 to be welded, and at the same time, the water blowing pipes 82 arranged between the corresponding water outlet pipes 81 on both sides of the induction coil 7 blow air into the groove of the lamp pole 2 to prevent the cooling water from entering the two ends of the lamp pole 2 between the induction coil 7. With the cooperation of the first pressing mechanism 5, the second pressing mechanism 6, the transmission mechanism 4 and the shaping mechanism 3, the problem of end misalignment during welding of the lamp pole 2 is effectively solved, the welding quality is improved, and the welded lamp pole 2 has a better roundness, thereby improving the quality of lamp pole production. At the same time, through the arrangement of the water outlet pipes 81 in the cooling mechanism 8, the installation grooves 21 of the lamp pole 2 on both sides of the induction coil 7 are evenly cooled, reducing welding stress and deformation, and under the action of the water blowing pipe, the cooling water can be effectively prevented from entering the installation grooves 21 between the induction coils 7, further improving the production quality of the lamp pole.

[0051] Example 2

[0052] As a specific implementation of the above embodiment 1, the specific structure of the transmission mechanism 4 is as follows: Figure 6As shown, it includes a first guide rod 41, whose axis is perpendicular to and intersects the axis of the mounting tube 1, and two moving blocks 42 are slidably sleeved on the first guide rod 41; both sides of the moving block 42 are hinged with connecting rods 43 of equal length, and their rotation axes are parallel to the axis of the mounting tube 1; the two connecting rods 43 located on the same side of the moving block 42 are respectively hinged to the other ends of the two telescopic rods 31 arranged in a colinear manner and passing through the mounting tube 1, and their rotation axes are parallel to the axis of the mounting tube 1, and a guide member 44 is provided between the moving blocks 42 of the two groups of transmission mechanisms 4, which is used to transmit power between the moving blocks 42 of the two groups of transmission mechanisms 4, so that the moving distances of the moving blocks 42 in each transmission mechanism 4 are equal. When in use, when one of the telescopic rods 31 is extended or retracted to a predetermined length, one end of the telescopic rod 31 will make the two moving blocks 42 on the first guide rod 41 approach or separate from each other through the connecting rod 43, and the two moving blocks 42 can drive the telescopic rod 31 coaxially arranged with one of the telescopic rods 31 to extend or retract through the connecting rod 43 hinged on the other side thereof, so that each pair of telescopic rods 31 can be extended or retracted to the same length at the same time; and in order to achieve the simultaneous extension or retraction of the two pairs of telescopic rods 31 to the same length, it is necessary to install a guide member 44 between the moving blocks 42 of the two sets of transmission mechanisms 4 to realize the transmission of power between the moving blocks 42 of the two sets of transmission mechanisms 4.

[0053] Specifically, Figure 6 As shown, the guide member 44 includes a matching rod 441 disposed on the moving block 42 of the transmission mechanism 4 and perpendicular to the axis of the mounting tube 1, and a guide frame 442 disposed on the moving block 42 of another transmission mechanism 4. The angle formed between the matching rod 441 and the first guide rod 41 is 45 degrees. The orientation of the guide frame 442 is consistent with the axial direction of the first guide rod 41. A guide block 443 matched with the guide frame 442 is formed at the end of the matching rod 441. When the moving block 42 equipped with the matching rod 441 moves along the first guide When the rod 41 moves, the guide block 443 at the end of the matching rod 441 will move along the guide frame 442 in the guide frame 442 on the moving block 42 of the other transmission mechanism 4, thereby driving the moving block 42 of the other transmission mechanism 4 to move together with the moving block 42 installed with the matching rod 441, that is, when the two moving blocks 42 in the transmission mechanism 4 move toward or away from each other, the two moving blocks 42 in the other transmission mechanism 4 move toward or away from each other at the same time, thereby achieving the simultaneous extension or retraction of the same length of the four telescopic rods 31. Through the cooperation of the moving block 42 and the first guide rod 41 and the hinged arrangement of the connecting rod 43, the moving block 42 and the telescopic rod 31, and under the action of the guide member 44, the structure of the transmission mechanism 4 is optimized, making it integral and miniaturized, and easy to install inside the mounting tube 1, and at the same time, it can effectively avoid the motion interference between the telescopic rods 31, and achieve the function of the telescopic rods 31 extending or retracting the same length at the same time, and ensure the precise positioning of each guide wheel 32.

[0054] Example 3

[0055] As a specific implementation of the above embodiments 1 and 2, Figure 7 , Fig. 9 , Fig.10 As shown, a mounting platform 11 is provided on the mounting tube 1 between any two adjacent telescopic rods 31, and its top surface is parallel to the axis of the mounting tube 1. A second guide rod 12 is mounted on the top surface of the mounting platform 11 and is arranged perpendicular to the axis of the mounting tube 1. The angle formed by the second guide rod 12 and the adjacent telescopic rod 31 is 45 degrees. The limit plates 512 of the two pressing blocks 51 are slidably sleeved on the second guide rod 12; a T-slot 13 is provided on the mounting platform 11, and the first pressing mechanism 5 also includes a screw 52 arranged in the transverse portion of the T-slot 13 and perpendicular to the axis of the mounting tube 1, and the screw 52 rotates around its own axis. The worm gear 53 is coaxially fixedly installed in the middle, the axis of the mounting tube 1 is located on the plane where the worm gear 53 is located, the threads on the screws 52 on both sides of the worm gear 53 are rotated in opposite directions, the limit plates 512 of the two pressure blocks 51 are respectively matched with the screws 52 on both sides of the worm gear 53, and the distance between them and the worm gear 53 is always equal, and a worm 54 is installed in the vertical part of the T-slot 13, which is arranged in the direction of the axis of the mounting tube 1 and matched with the worm gear 53, and the worm 54 is arranged to rotate around its own axis, and a motor 55 is provided on the side of the mounting platform 11, and its driving end is coaxially connected to the worm 54.

[0056] When in use, the motor 55 drives the worm 54 to rotate. The worm 54, as an active component, drives the worm wheel 53 to rotate, thereby driving the screw 52 to rotate. Since the threads at both ends of the screw 52 rotate in opposite directions, the two pressure blocks 51 are driven to move closer to each other, causing the lamp pole 2 to undergo plastic deformation, bringing the two ends of the lamp pole 2 closer together and leveling. When the lamp pole 2 is leveled, the motor 55 stops running, the worm 54 is stationary, and due to the self-locking property of the worm gear transmission mechanism, the two pressure blocks 51 remain stationary. After the two ends of the lamp pole 2 are stable, the motor 55 drives the worm 54 to rotate in the opposite direction, thereby separating the two pressure blocks 51 from each other. By utilizing the self-locking property of the worm gear transmission mechanism, the influence of inertia is effectively eliminated. As long as the working active component worm 54 stops rotating, the worm wheel 53 will be stationary, achieving reverse self-locking, thereby keeping the two pressure blocks 51 stationary, and being able to stably and effectively level the two ends of the lamp pole 2, thereby improving the welding quality.

[0057] Specifically, Figure 7 As shown, a matching groove 111 arranged along the second guide rod 12 and penetrating the T-shaped groove 13 is provided on the top surface of the mounting platform 11, and a connecting block 56 is provided at the lower part of the pressing block 51, and the connecting block 56 passes through the matching groove 111 and matches with the screw rod 52. The structure of the device is further optimized and the integration degree of the device is improved.

[0058] Example 4

[0059] As a specific implementation of the above embodiment 3, Figure 3~Figure 5 As shown, the mounting tube 1 is provided with guide seats 33 of the same number as the telescopic rods 31, and each telescopic rod 31 is respectively inserted into the corresponding guide seat 33; the ends of the telescopic rods 31 are connected to wheel frames 34, guide wheels 32 are installed on the wheel frames 34, and springs 35 are connected between the guide seats 33 and the wheel frames 34; both sides of each wheel frame 34 are provided with guide strips 341 arranged along the telescopic direction of the corresponding telescopic rod 31, and both sides of the mounting platform 11 are respectively provided with first guide grooves 112 arranged along the telescopic direction of the telescopic rods 31 on both sides of the adjacent two telescopic rods 31, and the mounting tube 1 between the remaining two adjacent telescopic rods 31 is provided with a support frame 14, and both sides of the support frame 14 are respectively provided with second guide grooves 113 arranged along the telescopic direction of the telescopic rods 31 on both sides of the adjacent two telescopic rods 31, and the guide strips 341 on both sides of the wheel frame 34 are respectively matched with the corresponding first guide groove 112 and the second guide groove 113 or the corresponding two second guide grooves 113. When the first pressing mechanism 5 presses the two ends of the lamp pole 2, the lamp pole 2 is deformed and the telescopic rod 31 is extended and retracted. The cooperation between the guide seat 33 and the guide bar 341 and the first guide groove 112 and the second guide groove 113 can guide the extension and retraction of the telescopic rod 31, thereby further avoiding movement interference between the telescopic rods 31, improving the extension and retraction accuracy of the telescopic rod 31, and improving the leveling accuracy of the two ends of the lamp pole 2, thereby improving the welding quality.

[0060] Example 5

[0061] As a specific implementation of the above-mentioned embodiment 1, the specific structure of the pressing block 51 can be set according to the shape of the required groove type. Accordingly, the pressing block 51 can be detachably arranged. When different groove types need to be pressed, it is only necessary to replace the pressing block 51 according to the groove type, which can effectively improve the applicability of the device.

[0062] Example 6

[0063] As a specific implementation of the above embodiment 1, Figure 1As shown, two water outlet pipes 81 are respectively arranged on both sides of the induction coil 7 and are respectively located directly above the welded installation groove 21 and the bent part to be welded, and the water outlets thereof are both facing the conveying direction of the lamp pole 2. Water blowing pipes 82 are respectively provided between the two sides of the induction coil 7 and the corresponding water outlet pipes 81, and the two water blowing pipes 82 are respectively facing the welded installation groove 21 and the bent part to be welded on both sides of the induction coil 7. When in use, the water outlet pipe 81 sprays cooling water into the bent parts at both ends of the lamp pole 2 and the installation groove 21 that has been welded, so that the lamp pole 2 on both sides of the induction coil 7 is evenly cooled to reduce welding stress and deformation; when the cooling water is sprayed into the installation groove 21 that has been welded, the cooling water will flow back to the bent part to be welded, and the bent part sprayed with cooling water will also be transported by the conveying roller 9 into the induction coil 7, thereby causing welding failure, and under the action of the water blowing pipe 82, the cooling water returning from the installation groove 21 that has been welded can be blown away, so that the cooling water will not flow back to the bent part that is being welded in the induction coil 7, and at the same time, before the bent part sprayed with cooling water enters the induction coil 7, the cooling water in the bent part is blown clean, which can effectively prevent the cooling water from entering the installation groove 21 between the induction coils 7, further improving the production quality of the lamp pole.

[0064] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application.

Claims

1. A high-frequency welding device in a lamp pole groove, characterized in that: include: A mounting tube (1) having a diameter smaller than the axial diameter of the lamp pole (2); A shaping mechanism (3), at least one group, used to tighten the inner wall of the lamp pole (2), comprising two pairs of telescopic rods (31) arranged on the outer wall of the mounting tube (1), the axes of each pair of telescopic rods (31) being arranged in a colinear manner, the axes of the telescopic rods (31) intersecting the axis of the mounting tube (1) at right angles, the axes of the two pairs of telescopic rods (31) being perpendicular to each other, each telescopic rod (31) being arranged to move along its own axis, the axes of the two pairs of telescopic rods (31) being arranged at a predetermined distance along the axis direction of the mounting tube (1), the ends of the telescopic rods (31) being connected to guide wheels (32), the guide wheels (32) in each group of shaping mechanisms (3) being located in the same plane, and a spring (35) being sleeved on the telescopic rod (31); The transmission mechanism (4) is matched in number to the shaping mechanism (3), is arranged inside the mounting tube (1) and is used to transmit power between the telescopic rods (31) in each group of shaping mechanisms (3), so that the telescopic rods (31) are extended or retracted to the same length at the same time; A first pressing mechanism (5) is arranged between any two telescopic rods (31) in each group of shaping mechanisms (3), and comprises two pressing blocks (51) arranged to move towards each other, the moving directions of the two pressing blocks (51) are perpendicular to the axis of the mounting tube (1), the two pressing blocks (51) are arranged coplanarly with the guide wheels (32) in the same group of shaping mechanisms (3), the structure of the pressing blocks (51) is adapted to the shape of the groove of the lamp pole (2), the distances between the two pressing blocks (51) and their corresponding adjacent telescopic rods (31) are equal, and the pressing blocks (51) comprise a push plate (511) for fitting with the outer side of the bent portion of the lamp pole (2) and a limit plate (512) for fitting with the bottom of the bent portion of the lamp pole (2); The mounting platform (11) is arranged on the mounting tube (1) between any two adjacent telescopic rods (31), the top surface of the mounting platform (11) is parallel to the axis of the mounting tube (1), a second guide rod (12) is mounted on the top surface of the mounting platform (11) and is arranged perpendicular to the axis of the mounting tube (1), the angle formed by the second guide rod (12) and the adjacent telescopic rod (31) is 45 degrees, and the limit plate (512) is slidably sleeved on the second guide rod (12); A second pressing mechanism (6) is arranged at one end of the shaping mechanism (3), and comprises squeezing rollers (61) respectively located on both sides of the axis of the mounting tube (1) and arranged to rotate around their own axes, the axes of the two squeezing rollers (61) are parallel to each other and perpendicular to the axis of the mounting tube (1), and the two squeezing rollers (61) are arranged to move in a direction perpendicular to their own axes; An induction coil (7) is arranged between the shaping mechanism (3) and the second pressing mechanism (6); A cooling mechanism (8) comprises water outlet pipes (81) arranged on both sides of the induction coil (7) and used to discharge cooling water into the groove of the lamp pole (2); and water blowing pipes (82) are respectively arranged between the two sides of the induction coil (7) and the corresponding water outlet pipes (81) and used to blow air into the groove of the lamp pole (2) to prevent cooling water from entering the groove of the lamp pole (2) between the induction coils (7).

2. A high-frequency welding device in a lamp post groove according to claim 1, characterized in that: The transmission mechanism (4) comprises a first guide rod (41) whose axis is perpendicular to and intersects the axis of the mounting tube (1); two moving blocks (42) are slidably sleeved on the first guide rod (41); connecting rods (43) of equal length are hinged on both sides of the moving blocks (42), whose rotation axes are parallel to the axis of the mounting tube (1); the two connecting rods (43) located on the same side of the moving blocks (42) are respectively hinged to the other ends of two telescopic rods (31) whose axes are colinearly arranged, and whose rotation axes are parallel to the axis of the mounting tube (1); a guide member (44) is provided between the moving blocks (42) of the two sets of transmission mechanisms (4) for transmitting power between the moving blocks (42) of the two sets of transmission mechanisms (4), so that the moving distances of the moving blocks (42) in each transmission mechanism (4) are equal.

3. The high-frequency welding device in a lamp post groove according to claim 2, characterized in that: The guide member (44) comprises a matching rod (441) provided on a moving block (42) of a transmission mechanism (4) and arranged perpendicular to the axis of the mounting tube (1), and a guide frame (442) provided on a moving block (42) of another transmission mechanism (4); the angle formed between the matching rod (441) and the first guide rod (41) is forty-five degrees; the orientation of the guide frame (442) is consistent with the axial direction of the first guide rod (41); and a guide block (443) matched with the guide frame (442) is formed at the end of the matching rod (441).

4. The high-frequency welding device in a lamp post groove according to claim 1, characterized in that: The mounting platform (11) is provided with a T-shaped slot (13). The first pressing mechanism (5) further comprises a screw (52) arranged in the horizontal portion of the T-shaped slot (13) and perpendicular to the axis of the mounting tube (1). The screw (52) is arranged to rotate around its own axis. A worm gear (53) is coaxially fixedly installed in the middle portion thereof. The axis of the mounting tube (1) is located in the middle of the planes where the two end surfaces of the worm gear (53) are located. The screw threads (52) on both sides of the worm gear (53) have opposite rotation directions. The two pressing blocks (51) are respectively matched with the screws (52) on both sides of the worm gear (53) and the distances between the two pressing blocks and the worm gear (53) are always equal. A worm gear (54) is installed in the vertical portion of the T-shaped slot (13). The worm gear (54) is arranged to rotate around its own axis. A motor (55) is provided on the side of the mounting platform (11), and the driving end of the motor (55) is coaxially connected to the worm gear (54).

5. The high-frequency welding device in a lamp post groove according to claim 4, characterized in that: A matching groove (111) is provided on the top surface of the mounting platform (11) and is arranged along the second guide rod (12) and penetrates the T-shaped groove (13). A connecting block (56) is provided at the bottom of the pressing block (51). The connecting block (56) passes through the matching groove (111) and matches with the screw rod (52).

6. The high-frequency welding device in a lamp post groove according to claim 1, characterized in that: The mounting tube (1) is provided with guide seats (33) whose number matches the number of telescopic rods (31), and each telescopic rod (31) is respectively inserted into a corresponding guide seat (33).

7. The high-frequency welding device in a lamp post groove according to claim 6, characterized in that: The ends of the telescopic rods (31) are connected to wheel frames (34), the guide wheels (32) are mounted on the wheel frames (34), and the springs (35) are connected between the guide seats (33) and the wheel frames (34).

8. The high-frequency welding device in a lamp post groove according to claim 7, characterized in that: Guide strips (341) arranged along the telescopic direction of the corresponding telescopic rod (31) are provided on both sides of each wheel frame (34); first guide grooves (112) arranged along the telescopic direction of the telescopic rods (31) on both sides of the mounting platform (11); a support frame (14) is provided on the mounting tube (1) between the other two adjacent telescopic rods (31); second guide grooves (113) arranged along the telescopic direction of the telescopic rods (31) on both sides of the support frame (14); and the guide strips (341) on both sides of the wheel frame (34) are respectively matched in the corresponding first guide groove (112) and the second guide groove (113) or in the corresponding two second guide grooves (113).

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