Strip head-to-tail butt welding pinch device

Abstract

The utility model relates to photovoltaic support production device field, and disclose a kind of with steel head tail butt welding clamping and feeding device, including bottom plate, the bottom plate upper end surface is fixedly connected with placement structure, and adjustment structure is rotatably connected in placement structure inner cavity, transmission structure is rotatably connected in the front end surface of placement structure, and drive structure is arranged in the right side of the back end of placement structure, by the elongation of electric telescopic link one, lower extrusion structure extrudes A steel strip, this design can adapt to the size difference possibly existing in A steel strip, this structure can effectively fix different sizes B steel strip, because the cooperation of elastic band two and limit block can adapt to the size change of B steel strip, by sliding block, electric telescopic link two elongation, make that upper clamping frame height reduces, so that A steel strip and B steel strip are located in same horizontal plane.This solves the height difference problem possibly existing in different steel strip, ensure that the butt joint of A steel strip and B steel strip is more accurate when welding, improve welding quality and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic bracket production equipment, specifically a steel strip head and tail butt welding clamping device. Background Technology

[0002] Photovoltaic (PV) brackets are designed to support solar panels, used for placing, installing, and securing them. PV brackets are generally made from structural steel, and different specifications can be designed to meet various needs. During the production of structural steel, to maintain uninterrupted production, different coiled steel strips need to be joined end-to-end. This joining process includes two steps: shearing and welding. First, shearing equipment is used to cut away any uneven areas at the head and tail of the strip, making them flush. This allows for a tight fit during welding.

[0003] A search revealed a Chinese utility model patent (CN213646432U) for an auxiliary butt welding device for strip steel. The device includes a welding worktable with a welding support fixedly mounted on its upper surface. Two clamping plates are mounted on either side of the welding support and slidably rest on the upper surface of the welding worktable. Two clamping mechanisms are symmetrically arranged on the upper surface of the clamping plates. An adjustment structure for driving the two clamping plates to move is rotatably mounted on the lower side of the welding worktable. The adjustment structure includes an adjusting rod and a translational slider. A rotating shaft seat is mounted on the upper side of the adjusting rod, with its upper end fixedly connected to the bottom of the welding worktable. The adjusting rod is rotatably connected to the welding worktable via the rotating shaft seat. In this invention, the two clamping plates move closer to each other due to the rotation of the adjusting rod, thereby causing the strip steel clamped on the clamping plates to move in a pressing direction. This reduces the distance between the shearing openings of the two strip steels and improves the quality of the welded strip steel joint.

[0004] The existing device has the following problems when in use: due to the setting of the guide plate, the device can only clamp part of the steel strip during use. At the same time, the device uses a clamping plate and a clamping plate to clamp and adjust the steel strip, which makes the process of using the device complicated. Furthermore, because the clamping plate and the steel strip interface are close together, during welding, the movement of the welding machine can easily cause the clamping plate and the steel strip to fuse together, thereby causing equipment damage. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] The purpose of this invention is to provide a strip head and tail butt welding clamping device to solve the problem mentioned in the background art that it is inconvenient to adjust the safety protection range according to different usage scenarios and needs.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a steel strip head and tail butt welding clamping device, comprising a base plate, a placement structure fixedly connected to the upper surface of the base plate, an adjustment structure rotatably connected to the inner cavity of the placement structure, a transmission structure rotatably connected to the front surface of the placement structure, a driving structure provided on the right side of the rear end of the placement structure, a lower placement structure slidably connected to the front part of the inner cavity of the placement structure, a lower clamping structure fixedly connected to the upper surface of the lower placement structure, an upper placement structure slidably connected to the rear part of the inner cavity of the placement structure, and an upper clamping structure symmetrically slidably connected to the upper surface of the inner cavity of the upper placement structure.

[0009] Preferably, the placement structure includes a placement block fixedly connected to the middle of the upper end face of the base plate, an inner sliding groove is provided in the middle of the upper end face of the placement block, and outer sliding grooves are provided on both the left and right sides of the upper end face of the placement block. The inner sliding groove and the inner cavity of the outer sliding groove are rotatably connected by an adjustment structure.

[0010] Preferably, the adjustment structure includes a forward threaded rod symmetrically rotatably connected to the middle of the inner cavity of the inner slide groove, and a reverse threaded rod rotatably connected to the inner cavity of the outer slide groove. The threads on the outer surfaces of the forward and reverse threaded rods are opposite in direction. A lower placement structure is threadedly connected to the outer surface of the forward threaded rod, and an upper placement structure is threadedly connected to the outer surface of the reverse threaded rod.

[0011] Preferably, the transmission structure includes a first pulley symmetrically rotatably connected to the middle of the front end face of the placement block, a first belt drivingly connected to the outer surfaces of the two first pulleys, and second pulleys rotatably connected to the left and right sides of the front end face of the placement block, a second belt drivingly connected to the outer surfaces of the two second pulleys, the outer surface radius of the second pulley being larger than the outer surface radius of the first pulley, the front end face rotation shafts of the two forward threaded rods passing through the placement block and being fixedly connected to the two first pulleys respectively, and the front end face rotation shafts of the two reverse threaded rods passing through the placement block and being fixedly connected to the two second pulleys respectively.

[0012] Preferably, the driving structure includes a driving worm gear symmetrically rotatably connected to the right side of the rear end face of the placement block. A driving worm is rotatably connected to the rear end face of the placement block above the driving worm gear via a bracket. A driving motor is fixedly connected to the rear end face of the placement block between the two driving worms. Two rotating shafts on adjacent sides between the two driving worms are fixedly connected to the output ends on both sides of the driving motor. The rear end face rotating shafts of the right-side forward thread rod and the reverse thread rod pass through the placement block and are fixedly connected to the two driving worm gears respectively. The driving worm gear and the driving worm mesh with each other.

[0013] Preferably, the lower placement structure includes a slider slidably connected to the inner cavity of the inner groove, a positive threaded rod passing through the slider and threadedly connected, a placement plate fixedly connected to the upper end face of the slider, a placement frame fixedly connected to the upper end face of the placement plate, and a gull-shaped lower clamping structure fixedly connected to both the left and right sides of the inner cavity of the placement frame.

[0014] Preferably, the lower clamping structure includes an electric telescopic rod symmetrically and fixedly connected to the left and right sides of the placement frame. A compression frame is fixedly connected to the side of the electric telescopic rod away from the placement frame. A lower compression structure is fixedly connected to the inner cavity of the compression frame. The lower compression structure includes an elastic band uniformly and fixedly connected to the side of the inner cavity of the compression frame away from the electric telescopic rod. A compression block is uniformly and fixedly connected to the outer surface of the elastic band.

[0015] Preferably, the upper placement structure includes a sliding frame slidably connected to the inner cavity of the outer slide groove, a reverse threaded rod passing through the sliding frame and threadedly connected, a limit rod symmetrically fixedly connected to the upper end face of the inner cavity of the sliding frame, a threaded rod rotatably connected to the upper part of the inner cavity of the sliding frame between the two limit rods, an adjusting motor fixedly connected to the upper part of the left end face of the sliding frame, a rotating shaft on the left end face of the threaded rod passing through the sliding frame and fixedly connected to the output end of the adjusting motor, an upper clamping structure symmetrically slidably connected to the outer surface of the limit rod, and two sections of threads in opposite directions symmetrically opened on the outer surface of the threaded rod.

[0016] Preferably, the upper clamping structure includes a sliding block symmetrically slidably connected to the outer surface of the limiting rod, a threaded rod passing through the sliding block and threadedly connected, an electric telescopic rod II symmetrically fixedly connected to the lower end face of the sliding block, an upper clamping frame fixedly connected to the lower end face of the electric telescopic rod II, and an upper extrusion structure fixedly connected to adjacent sides of the inner cavities of the two upper clamping frames. The upper extrusion structure includes an elastic band II uniformly fixedly connected to adjacent sides of the inner cavities of the two upper clamping frames, and a limiting block uniformly and symmetrically fixedly connected to the outer surface of the elastic band II.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model utilizes the extension of the electric telescopic rod to bring the two extrusion frames closer together, allowing the lower extrusion structure to extrude strip A. Because the elastic band is made of elastic material, it can deform, causing the extrusion block to adhere to the outer surface of strip A. This design can accommodate potential dimensional differences in strip A, ensuring effective extrusion and fixation for strips of varying widths or thicknesses. For strip B, adjusting the motor output rotates the threaded rod, causing the sliding blocks to move closer together under the control of the limiting rod. This causes the elastic band to bend, and the limiting block adheres to the outer surface of strip B, achieving extrusion and fixation. This structure can effectively fix strip B of different sizes because the cooperation between the elastic band and the limiting block adapts to dimensional changes in strip B. The extension of the electric telescopic rod via the sliding block lowers the height of the upper clamping frame, bringing strips A and B to the same horizontal plane. This solves the problem of potential height differences between different strips, ensuring more accurate joining of strips A and B during welding, improving welding quality and efficiency.

[0019] 2. This utility model utilizes a drive structure where the output of a drive motor rotates, causing a drive worm to rotate. Since the drive worm meshes with a drive worm wheel, the drive worm wheel rotates. The forward and reverse threaded rods are fixedly connected to two drive worm wheels, respectively. Therefore, the rotation of the forward and reverse threaded rods causes pulley one to rotate, which in turn causes belt one to rotate; the rotation of the reverse threaded rod causes pulley two to rotate, which in turn causes belt two to rotate. Because the spiral direction of the threads on the outer surfaces of the reverse and forward threaded rods is opposite, the slider and the sliding frame slide relative to each other, thus ensuring that the ends of steel strip A and steel strip B are firmly attached and fixed together. This structure solves the problem of manually aligning the ends of steel strips A and B, improving welding efficiency. Attached Figure Description

[0020] Figure 1 This is a front-view three-dimensional structural schematic diagram of the present invention;

[0021] Figure 2 This is a rear-view three-dimensional structural diagram of the present invention;

[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of this utility model in half section.

[0023] Figure 4 This is a schematic diagram of the installation structure of the lower placement structure and the lower clamping structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the installation structure of the clamping structure of this utility model.

[0025] In the diagram: 1. Base plate; 2. Placement structure; 21. Placement block; 22. Inner slide groove; 23. Outer slide groove; 3. Adjustment structure; 31. Forward threaded rod; 32. Reverse threaded rod; 4. Transmission structure; 41. Pulley 1; 42. Belt 1; 43. Pulley 2; 44. Belt 2; 5. Drive structure; 51. Drive worm gear; 52. Drive worm; 53. Drive motor; 6. Lower placement structure; 61. Slider; 62. Placement plate; 63. 7. Placement frame; 7. Lower clamping structure; 71. Electric telescopic rod one; 72. Extrusion frame; 73. Lower extrusion structure; 731. Elastic band one; 732. Extrusion block; 8. Upper placement structure; 81. Sliding frame; 82. Limiting rod; 83. Threaded rod; 84. Adjusting motor; 9. Upper clamping structure; 91. Sliding block; 92. Electric telescopic rod two; 93. Upper clamping frame; 94. Upper extrusion structure; 941. Elastic band two; 942. Limiting block. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-5 This utility model provides a technical solution for a strip head and tail butt welding clamping device: A strip head and tail butt welding clamping device includes a base plate 1, a placement structure 2 is fixedly connected to the upper end face of the base plate 1, an adjustment structure 3 is rotatably connected to the inner cavity of the placement structure 2, a transmission structure 4 is rotatably connected to the front end face of the placement structure 2, a drive structure 5 is provided on the right side of the rear end of the placement structure 2, a lower placement structure 6 is slidably connected to the front part of the inner cavity of the placement structure 2, a lower clamping structure 7 is fixedly connected to the upper end face of the lower placement structure 6, an upper placement structure 8 is slidably connected to the rear part of the inner cavity of the placement structure 2, and an upper clamping structure 9 is symmetrically slidably connected to the upper end face of the inner cavity of the upper placement structure 8.

[0028] Furthermore, the placement structure 2 includes a placement block 21 fixedly connected to the middle of the upper end face of the base plate 1. An inner sliding groove 22 is provided in the middle of the upper end face of the placement block 21, and outer sliding grooves 23 are provided on both the left and right sides of the upper end face of the placement block 21. An adjustment structure 3 is rotatably connected to the inner cavity of the inner sliding groove 22 and the outer sliding groove 23.

[0029] Furthermore, the adjustment structure 3 includes a forward threaded rod 31 symmetrically rotatably connected to the middle of the inner cavity of the inner slide groove 22, and a reverse threaded rod 32 rotatably connected to the inner cavity of the outer slide groove 23. The threads on the outer surfaces of the forward threaded rod 31 and the reverse threaded rod 32 are opposite in direction. The outer surface of the forward threaded rod 31 is threadedly connected to a lower placement structure 6, and the outer surface of the reverse threaded rod 32 is threadedly connected to an upper placement structure 8. The forward threaded rod 31 and the reverse threaded rod 32 are respectively fixedly connected to two driving worm gears 51. Therefore, when the forward threaded rod 31 and the reverse threaded rod 32 rotate, the rotation of the forward threaded rod 31 causes the pulley 41 to rotate, which in turn causes the belt 42 to rotate, and the rotation of the reverse threaded rod 32 causes the pulley 43 to rotate.

[0030] Furthermore, the transmission structure 4 includes a first pulley 41 symmetrically rotatably connected to the center of the front end face of the placement block 21. A first belt 42 is drivenly connected to the outer surfaces of the two first pulleys 41. Second pulleys 43 are rotatably connected to both sides of the front end face of the placement block 21. A second belt 44 is drivenly connected to the outer surfaces of the two second pulleys 43. The outer surface radius of the second pulleys 43 is larger than that of the first pulleys 41. The front end faces of the two forward threaded rods 31 have rotating shafts that pass through the placement block 21 and are fixedly connected to the two first pulleys 41 respectively. The front end faces of the two reverse threaded rods 32 have rotating shafts that pass through the placement block 21 and are fixedly connected to the two second pulleys 43 respectively. Because the reverse threaded rods 32 and the forward threaded rods 31 have opposite spiral directions, the slider 61 and the sliding frame 81 slide relative to each other, thereby making the A steel strip and the B steel strip's ends fit together and be fixed. This structure solves the problem of manual precise alignment of the A steel strip and the B steel strip's ends, improving welding efficiency.

[0031] Furthermore, the drive structure 5 includes a drive worm gear 51 symmetrically rotatably connected to the right side of the rear end face of the placement block 21. A drive worm 52 is rotatably connected to the rear end face of the placement block 21 above the drive worm gear 51 via a bracket. A drive motor 53 is fixedly connected to the rear end face of the placement block 21 between the two drive worms 52. Two rotating shafts on adjacent sides of the two drive worms 52 are fixedly connected to the output ends on both sides of the drive motor 53. The rear end rotating shafts of the right-side forward thread rod 31 and reverse thread rod 32 pass through the placement block 21 and are fixedly connected to the two drive worm gears 51 respectively. The drive worm gear 51 and the drive worm 52 mesh with each other. The rotation of the output end of the drive motor 53 on the drive structure 5 drives the drive worm 52 to rotate. Since the drive worm 52 and the drive worm gear 51 mesh with each other, the drive worm gear 51 rotates.

[0032] Furthermore, the lower placement structure 6 includes a slider 61 slidably connected to the inner cavity of the inner groove 22, a positive threaded rod 31 passing through the slider 61 and threadedly connected, a placement plate 62 fixedly connected to the upper end face of the slider 61, a placement frame 63 fixedly connected to the upper end face of the placement plate 62, and a gull-shaped lower clamping structure 7 fixedly connected to both the left and right sides of the inner cavity of the placement frame 63.

[0033] Furthermore, the lower clamping structure 7 includes electrically telescopic rods 71 ​​symmetrically fixedly connected to the left and right sides of the placement frame 63. A compression frame 72 is fixedly connected to the side of the electrically telescopic rods 71 ​​away from the placement frame 63. A lower compression structure 73 is fixedly connected to the inner cavity of the compression frame 72. The lower compression structure 73 includes an elastic band 731 uniformly fixedly connected to the side of the inner cavity of the compression frame 72 away from the electrically telescopic rods 71. Compression blocks 732 are uniformly fixedly connected to the outer surface of the elastic band 731. By extending the electrically telescopic rods 71, the two compression frames 72 move closer to each other, and the lower compression structure 73 compresses the A strip steel. Since the elastic band 731 is an elastic material, it can deform, causing the compression blocks 732 to fit against the outer surface of the A strip steel. This design can adapt to possible size differences in the A strip steel, ensuring that A strip steel of different widths or thicknesses can be effectively compressed and fixed.

[0034] Furthermore, the upper placement structure 8 includes a sliding frame 81 slidably connected to the inner cavity of the outer sliding groove 23. A reverse threaded rod 32 passes through the sliding frame 81 and is threadedly connected. A limiting rod 82 is symmetrically fixedly connected to the upper end face of the inner cavity of the sliding frame 81. A threaded rod 83 is rotatably connected to the upper part of the inner cavity of the sliding frame 81 between the two limiting rods 82. An adjusting motor 84 is fixedly connected to the upper part of the left end face of the sliding frame 81. The rotating shaft of the left end face of the threaded rod 83 passes through the sliding frame 81 and is fixedly connected to the output end of the adjusting motor 84. An upper clamping structure 9 is symmetrically slidably connected to the outer surface of the limiting rod 82. Two sections of threads with opposite directions are symmetrically opened on the outer surface of the threaded rod 83. By rotating the output end of the adjusting motor 84, the threaded rod 83 is driven to rotate. The sliding blocks 91 move closer to each other under the limitation of the limiting rod 82, causing the elastic band 941 to bend. The limiting block 942 and the outer surface of the B steel strip are in contact with each other, realizing the compression and fixing of the B steel strip. This structure can effectively fix B steel strips of different sizes.

[0035] Furthermore, the upper clamping structure 9 includes a sliding block 91 symmetrically slidably connected to the outer surface of the limiting rod 82. A threaded rod 83 passes through the sliding block 91 and is threadedly connected. An electric telescopic rod 92 is symmetrically and fixedly connected to the lower end face of the sliding block 91. An upper clamping frame 93 is fixedly connected to the lower end face of the electric telescopic rod 92. An upper extrusion structure 94 is fixedly connected to the adjacent side of the inner cavity of the two upper clamping frames 93. The upper extrusion structure 94 includes an elastic band 941 uniformly and fixedly connected to the adjacent side of the inner cavity of the two upper clamping frames 93. A limiting block 942 is uniformly and symmetrically fixedly connected to the outer surface of the elastic band 941. Through the sliding block 91, the electric telescopic rod 92 extends, causing the height of the upper clamping frame 93 to decrease, thereby making steel strip A and steel strip B located on the same horizontal plane. Furthermore, due to the cooperation of the elastic band 941 and the limiting block 942, it can adapt to the size change of steel strip B, solving the problem of possible height difference between different steel strips, ensuring more accurate docking of steel strip A and steel strip B during welding, and improving welding quality and efficiency.

[0036] Working principle: During operation, strip A is placed inside the placement frame 63 between the two lower extrusion structures 73. The electric telescopic rod 71 is then activated, extending it and causing the two extrusion frames 72 to move closer together. This allows the lower extrusion structures 73 to extrude strip A. Because the elastic band 731 is made of elastic material, it deforms, causing the extrusion block 732 to adhere to the outer surface of strip A.

[0037] At this point, the B-type steel strip is placed between the two upper extrusion structures 94. The adjusting motor 84 is then activated, causing its output end to rotate. This rotates the threaded rod 83, causing the sliding blocks 91 to move closer together under the limiting action of the limiting rod 82. Consequently, the elastic band 941 bends, causing the limiting block 942 to adhere to the outer surface of the B-type steel strip, thus achieving the extrusion and fixation of the B-type steel strip.

[0038] When aligning steel strip B with steel strip A, the sliding block 91 is activated, causing the electric telescopic rod 92 to extend. This lowers the height of the upper clamping frame 93, bringing steel strip A and steel strip B to the same horizontal plane, thus clamping and fixing steel strips of different sizes.

[0039] At this time, the drive structure 5 is activated, causing the output end of the drive motor 53 to rotate. This drives the worm gear 52 to rotate. Since the drive worm gear 52 meshes with the drive worm wheel 51, the drive worm wheel 51 rotates. Because the forward thread rod 31 and the reverse thread rod 32 are fixedly connected to the two drive worm wheels 51 respectively, both the forward thread rod 31 and the reverse thread rod 32 rotate. Because the forward thread rod 31 rotates, pulley 41 rotates, which in turn causes belt 42, which is connected to pulley 41, to rotate. Furthermore, because the reverse thread rod 32 rotates, pulley 43, which is fixedly connected to the reverse thread rod 32, rotates, further causing belt 44, which is connected to pulley 43, to rotate.

[0040] At this time, since the reverse thread rod 32 and the forward thread rod 31 have opposite spiral directions on their outer surfaces, the slider 61 and the sliding frame 81 slide relative to each other, so that the A steel strip and the B steel strip are fitted and fixed together, which facilitates clamping and docking, thereby improving the welding efficiency of personnel.

[0041] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.

Claims

1. A strip steel head and tail butt welding clamping device, comprising a base plate (1), characterized in that: The base plate (1) is fixedly connected to the upper end face of the placement structure (2), the inner cavity of the placement structure (2) is rotatably connected to the adjustment structure (3), the front end face of the placement structure (2) is rotatably connected to the transmission structure (4), the rear right side of the placement structure (2) is provided with the drive structure (5), the front part of the inner cavity of the placement structure (2) is slidably connected to the lower placement structure (6), the upper end face of the lower placement structure (6) is fixedly connected to the lower clamping structure (7), the rear part of the inner cavity of the placement structure (2) is slidably connected to the upper placement structure (8), the upper end face of the inner cavity of the upper placement structure (8) is symmetrically slidably connected to the upper clamping structure (9).

2. The strip head and tail butt welding clamping device according to claim 1, characterized in that: The placement structure (2) includes a placement block (21) fixedly connected to the middle of the upper end face of the base plate (1). An inner sliding groove (22) is provided in the middle of the upper end face of the placement block (21). Outer sliding grooves (23) are provided on both the left and right sides of the upper end face of the placement block (21). An adjustment structure (3) is rotatably connected to the inner cavity of the inner sliding groove (22) and the outer sliding groove (23).

3. The strip head and tail butt welding clamping device according to claim 1, characterized in that: The adjustment structure (3) includes a forward threaded rod (31) symmetrically rotatably connected to the middle of the inner cavity of the inner slide groove (22), and a reverse threaded rod (32) rotatably connected to the inner cavity of the outer slide groove (23). The threads on the outer surfaces of the forward threaded rod (31) and the reverse threaded rod (32) are opposite in direction. The outer surface of the forward threaded rod (31) is threaded with a lower placement structure (6), and the outer surface of the reverse threaded rod (32) is threaded with an upper placement structure (8).

4. The strip head and tail butt welding clamping device according to claim 3, characterized in that: The transmission structure (4) includes a pulley 1 (41) symmetrically rotatably connected to the middle of the front end face of the placement block (21), a belt 1 (42) being driven connected to the outer surface of the two pulleys 1 (41), pulleys 2 (43) being rotatably connected to the left and right sides of the front end face of the placement block (21), a belt 2 (44) being driven connected to the outer surface of the two pulleys 2 (43), the outer surface radius of the pulley 2 (43) being greater than the outer surface radius of the pulley 1 (41), the front end face rotation shafts of the two positive threaded rods (31) passing through the placement block (21) and being fixedly connected to the two pulleys 1 (41) respectively, and the front end face rotation shafts of the two reverse threaded rods (32) passing through the placement block (21) and being fixedly connected to the two pulleys 2 (43) respectively.

5. The strip head and tail butt welding clamping device according to claim 1, characterized in that: The drive structure (5) includes a drive worm gear (51) symmetrically rotatably connected to the right side of the rear end face of the placement block (21). The rear end face of the placement block (21) is located above the drive worm gear (51) and is rotatably connected to a drive worm (52) via a bracket. The rear end face of the placement block (21) is located between the two drive worms (52) and is fixedly connected to a drive motor (53). The two rotating shafts on the adjacent side between the two drive worms (52) are fixedly connected to the output ends on both sides of the drive motor (53). The rear end face rotating shafts of the right-side forward thread rod (31) and the reverse thread rod (32) pass through the placement block (21) and are fixedly connected to the two drive worm gears (51) respectively. The drive worm gear (51) and the drive worm (52) mesh with each other.

6. The strip head and tail butt welding clamping device according to claim 1, characterized in that: The lower placement structure (6) includes a slider (61) slidably connected to the inner cavity of the inner groove (22), a positive threaded rod (31) passing through the slider (61) and threadedly connected, a placement plate (62) fixedly connected to the upper end face of the slider (61), a placement frame (63) fixedly connected to the upper end face of the placement plate (62), and a gull lower clamping structure (7) fixedly connected to both the left and right sides of the inner cavity of the placement frame (63).

7. The strip head and tail butt welding clamping device according to claim 1, characterized in that: The lower clamping structure (7) includes an electric telescopic rod (71) symmetrically fixedly connected to the left and right sides of the placement frame (63). An extrusion frame (72) is fixedly connected to the side of the electric telescopic rod (71) away from the placement frame (63). A lower extrusion structure (73) is fixedly connected to the inner cavity of the extrusion frame (72). The lower extrusion structure (73) includes an elastic band (731) uniformly fixedly connected to the side of the inner cavity of the extrusion frame (72) away from the electric telescopic rod (71). An extrusion block (732) is uniformly fixedly connected to the outer surface of the elastic band (731).

8. The strip head and tail butt welding clamping device according to claim 1, characterized in that: The upper placement structure (8) includes a sliding frame (81) slidably connected to the inner cavity of the outer sliding groove (23), a reverse threaded rod (32) passing through the sliding frame (81) and threadedly connected, a limit rod (82) symmetrically fixedly connected to the upper end face of the inner cavity of the sliding frame (81), a threaded rod (83) rotatably connected between the two limit rods (82) at the upper part of the inner cavity of the sliding frame (81), an adjustment motor (84) fixedly connected to the upper part of the left end face of the sliding frame (81), a rotating shaft on the left end face of the threaded rod (83) passing through the sliding frame (81) and fixedly connected to the output end of the adjustment motor (84), an upper clamping structure (9) symmetrically slidably connected to the outer surface of the limit rod (82), and two sections of threads with opposite directions symmetrically opened on the outer surface of the threaded rod (83).

9. The strip head and tail butt welding clamping device according to claim 1, characterized in that: The upper clamping structure (9) includes a sliding block (91) symmetrically slidably connected to the outer surface of the limiting rod (82), a threaded rod (83) passing through the sliding block (91) and threadedly connected, an electric telescopic rod (92) symmetrically fixedly connected to the lower end face of the sliding block (91), an upper clamping frame (93) fixedly connected to the lower end face of the electric telescopic rod (92), an upper extrusion structure (94) fixedly connected to the adjacent side of the inner cavity of the two upper clamping frames (93), the upper extrusion structure (94) includes an elastic band (941) uniformly fixedly connected to the adjacent side of the inner cavity of the two upper clamping frames (93), and a limiting block (942) uniformly and symmetrically fixedly connected to the outer surface of the elastic band (941).

Images