Automatic copper bar welding device for bus duct production

Abstract

The invention relates to the technical field of welding, and specifically discloses an automatic copper bar welding device for bus duct production, wherein a sleeve is slidably connected to a base, an elastic member 1 is arranged on one side of the sliding direction of the sleeve, a column is rotatably installed in the sleeve, two positioning frames are installed at the upper end of the column, an angle is formed between the two positioning frames, and the size of the angle can be adjusted, and ends of the two positioning frames that are away from each other are provided with fixing members for fixing the copper bar, a control component is arranged between the sleeve and the two positioning frames, so that when the column rotates 180 degrees, the two positioning frames can exchange positions, and a driving component can drive the sleeve to move in the direction where the elastic member 1 is located, and can drive the column to rotate; after completing the welding of one end of the copper bar, the welding device of the invention can control the driving component to exchange the positions of the two ends of the copper bar, and weld the other end of the copper bar, so that the welding process is safer.

Description

Technical Field

[0001] The invention relates to the technical field of welding, and in particular to an automatic copper bar welding device for bus duct production. Background Art

[0002] The soft copper busbar is a thin copper plate with flexibility that can conduct electricity. During the design of the internal structure of the battery pack, it can be bent according to the required shape to achieve optimal layout. At the same time, the insulating material can also be changed according to the use environment conditions. Since the soft copper busbar is composed of multiple components, docking plates need to be welded at both ends before use to fix the soft copper busbar and facilitate installation.

[0003] The patent document with authorization announcement number CN220902373U discloses a short copper busbar welding device that can be quickly positioned, including a base, a fuselage is installed on the surface of the base, an operation box is installed on one side of the fuselage, a connecting platform is installed on the front side of the fuselage, a lower welding head is installed on the surface of the connecting platform, a connecting box is installed on the front side of the fuselage, an upper welding head is installed on the lower surface of the connecting box, and an adjustment structure is provided on the surface of the connecting platform, the adjustment structure includes four fixed plates, the four fixed plates are fixedly connected to the connecting platform, each two of the four fixed plates are a group, and the inner wall of each group of the fixed plates is rotatably connected to the same adjusting rod, the arc surface of the adjusting rod is fixedly connected to a circular plate, and the inner wall of the circular plate is threadedly connected to a screw; this patent has the advantage of facilitating the limited fixation of copper bars of different widths and facilitating welding.

[0004] Since the copper bar needs to be welded at both ends, although the above technical solution is convenient for limiting and fixing the ends of the copper bar, it is not convenient to interchange the positions of the two ends of the copper bar. In addition, depending on the use environment, the angle between the two ends of the copper bar after welding is different. The above technical solution is not convenient for adjusting the angle between the two ends of the copper bar, and is not convenient to use. Summary of the invention

[0005] The present invention provides an automatic copper bar welding device for bus duct production, aiming to solve the problem in the related art that it is inconvenient to interchange the positions of the two ends of the copper bar and to adjust the angle between the two ends of the copper bar.

[0006] A copper bar automatic welding device for bus duct production, comprising a base, a sleeve, an elastic member 1, a column, a positioning assembly, a control assembly and a driving assembly, wherein the sleeve is slidably connected to the base, the elastic member 1 is arranged on one side of the sliding direction of the sleeve and can elastically push the sleeve, the column is rotatably installed in the sleeve, the positioning assembly comprises two positioning frames, the two positioning frames are installed at the upper end of the column, an angle is formed between the two positioning frames, and the size of the angle can be adjusted, and the ends of the two positioning frames that are away from each other are provided with fixings for fixing the copper bar, the control assembly is arranged between the sleeve and the two positioning frames, so that when the column rotates 180°, the two positioning frames can exchange positions, and the driving assembly can drive the sleeve to move in the direction where the elastic member 1 is located, and can drive the column to rotate.

[0007] The beneficial effects of the present invention are as follows: after the welding of one end of the copper bar is completed, the welding device of the present invention can interchange the positions of the two ends of the copper bar and complete the welding of the other end of the copper bar by controlling the drive component, with the cooperation of the elastic member 1 and the control component, and only one drive is needed to complete the above operation, and the safety is higher during the welding process. In addition, it is convenient to adjust the angle between the two ends of the copper bar according to actual needs, which is convenient to use.

[0008] Preferably, the positioning assembly further comprises a support member, which is cylindrical, and the ends of the two positioning frames close to each other are both in contact with the circumferential surface of the support member, which has the effect that the cylindrical support member facilitates the installation of the copper busbar.

[0009] Preferably, among the two positioning frames, one of the positioning frames is fixedly connected with connecting rod 1, and the other positioning frame is fixedly connected with connecting rod 2, and the ends of connecting rod 1 and connecting rod 2 close to each other are rotatably connected, which has the effect of conveniently adjusting the angle between the two positioning frames through connecting rod 1 and connecting rod 2.

[0010] Preferably, the control assembly includes a control rod 1 and a control rod 2, the connecting rod 1 is provided with a slide groove 1, the connecting rod 2 is provided with a slide groove 2, the two side surfaces of the support are respectively provided with a vertical groove 1 and a vertical groove 2, the vertical groove 1 and the vertical groove 2 are respectively located on both sides of the rotation connection point of the connecting rod 1 and the connecting rod 2, the upper end of the control rod 1 is slidably fitted in the slide groove 1 and the vertical groove 1, the upper end of the control rod 2 is slidably fitted in the slide groove 2 and the vertical groove 2, and the sleeve is provided with an upward annular surface The annular surface includes a first section, a second section and a third section. The first section and the third section are both planes, and the height of the third section is higher than that of the first section. The second section is an arc-shaped surface extending upward. The lower end of the second section is connected to the first section, and the upper end is connected to the third section. The lower end of the control rod 1 and the lower end of the control rod 2 are both located at the upper part of the annular surface. The effect is that when the column rotates 180°, the two positioning frames can be interchanged with each other under the cooperation of the control rod 1, the control rod 2 and the annular surface.

[0011] Preferably, the driving assembly includes gear one, gear two, a cam and a driving member, the gear one is rotatably installed in the base and can move up and down, the upper end of the gear one is provided with a ring gear, the gear two is rotatably installed above the gear one, the lower end of the gear two is provided with a ring gear, and can mesh with the gear one when the gear one moves upward, the cam and the elastic member one are arranged on opposite sides of the sleeve, the cam is connected to the gear two, and when the gear two rotates, it can drive the cam to rotate, and the driving member can drive the gear one to rotate.

[0012] Preferably, the driving assembly also includes gear three, which is rotatably installed below gear one, and a gear ring is provided at the upper end of gear three and the lower end of gear one. When the gear moves down, gear three can mesh with gear one. Gear three is also connected to the column, and when gear three rotates, it can drive the column to rotate.

[0013] Preferably, the driving assembly also includes an annular member and a pushing member, the annular member is rotatably installed in the base, the upper end face of the annular member is composed of end face one, end face two, end face three, end face four, end face five and end face six arranged in sequence, the end face two and the end face six are at the same height, the end face one, the end face three and the end face five are at the same height, and the height of the end face one is lower than the height of the end face two, and the height of the end face four is lower than the height of the end face three, the lower end of the pushing member stops at the upper end face of the annular member, and the upper end is rotatably connected to the gear one, and can drive the gear one to move up and down.

[0014] Preferably, a roller 1 is provided at the lower end of the pushing member, and the roller 1 abuts against the upper end surface of the annular member, which has the effect that the roller 1 can facilitate the rotation of the annular member relative to the pushing member.

[0015] By adopting the above technical scheme, the beneficial effects of the present invention are as follows: after completing the welding of one end of the copper bar, the welding device of the present invention can interchange the positions of the two ends of the copper bar and complete the welding of the other end of the copper bar by controlling the drive component, with the cooperation of the elastic member 1 and the control component, and only one drive is needed to complete the above operation, and the safety is higher during the welding process. In addition, it is convenient to adjust the angle between the two ends of the copper bar according to actual needs, which is convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention.

[0017] Figure 2 It is a structural schematic diagram of the positioning component of the present invention.

[0018] Figure 3 Another schematic diagram of the structure of the positioning assembly of the present invention.

[0019] Figure 4 It is a schematic structural diagram of the annular surface of the present invention.

[0020] Figure 5 It is a schematic diagram of the cross-sectional structure of the sleeve of the present invention.

[0021] Figure 6 Another schematic diagram of the cross-sectional structure of the sleeve of the present invention.

[0022] Figure 7 It is a schematic diagram of the structure of the driving assembly of the present invention.

[0023] Figure 8 It is a schematic structural diagram of the ring member of the present invention.

[0024] Fig. 9 It is a schematic diagram of the cross-sectional structure of the base of the present invention.

[0025] Reference numerals:

[0026] 1. Base; 11. Slide groove three; 2. Sleeve; 21. Annular surface; 211. First section; 212. Second section; 213. Third section; 22. Annular groove; 3. Elastic member one; 4. Column;

[0027] 51. Positioning frame; 511. Card slot; 52. Fixing member; 53. Support member; 531. Vertical slot 1; 532. Vertical slot 2; 54. Connecting rod 1; 541. Slide slot 1; 55. Connecting rod 2; 551. Slide slot 2; 56. Locking structure; 61. Control rod 1; 62. Control rod 2;

[0028] 71. Gear 1; 72. Gear 2; 73. Cam; 731. Arc surface 1; 732. Arc surface 2; 74. Driving member; 75. Gear 3; 76. Ring member; 761. End surface 1; 762. End surface 2; 763. End surface 3; 764. End surface 4; 765. End surface 5; 766. End surface 6; 77. Push member; 78. Belt transmission structure 1; 79. Belt transmission structure 2;

[0029] 81. Roller one; 82. Roller two; 83. Rotating shaft; 84. Support rod one; 85. Support rod two; 86. Elastic member two; 87. Gear four; 88. Gear five; 89. Gear six. DETAILED DESCRIPTION

[0030] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0031] like Figures 1 to 9 As shown, the automatic copper bar welding device for bus duct production according to the embodiment of the present invention includes a base 1, a sleeve 2, an elastic member 3, a column 4, a positioning assembly, a control assembly and a drive assembly.

[0032] like Figure 1 and Fig. 9 As shown, the sleeve 2 is slidably connected to the base 1, the elastic member 3 is arranged on one side of the sliding direction of the sleeve 2 and can elastically push the sleeve 2, and the column 4 is rotatably installed in the sleeve 2.

[0033] Specifically, the sleeve 2 is movably inserted into the base 1 from the upper end of the base 1. The base 1 is provided with a slide groove 3 11 extending in the left and right directions. The sleeve 2 is slidably engaged in the slide groove 3 11 so that the sleeve 2 can slide in the left and right directions. The elastic member 1 3 is arranged on the left side of the sleeve 2. The elastic member 1 3 can be a spring, and its left and right ends are respectively fixedly connected to the base 1 and the sleeve 2. An annular groove 22 is provided on the inner circumferential surface of the sleeve 2. The column 4 is movably inserted in the sleeve 2 and rotatably engaged in the annular groove 22.

[0034] like Figure 1As shown, the positioning assembly includes two positioning frames 51, and the two positioning frames 51 are installed at the upper end of the column 4. There is an angle between the two positioning frames 51, and the size of the angle can be adjusted. The ends of the two positioning frames 51 that are away from each other are provided with fixing parts 52 for fixing the copper busbar. Specifically, the positioning assembly also includes a support member 53, and the support member 53 is cylindrical. The two positioning frames 51 are arranged along the circumference of the support member 53, and the ends of the two positioning frames 51 that are close to each other are both in contact with the circumferential surface of the support member 53. The positioning frames 51 are provided with a slot 511 for placing the copper busbar to position the copper busbar. The fixing part 52 for fixing the copper busbar is an existing mature technology and will not be elaborated in detail here.

[0035] like Figures 1 to 3 As shown, among the two positioning frames 51, one of the positioning frames 51 is fixedly connected with a connecting rod 1 54, and the other positioning frame 51 is fixedly connected with a connecting rod 2 55, and the ends of the connecting rod 1 54 and the connecting rod 2 55 that are close to each other are rotatably connected. Specifically, there are two connecting rods 1 54 and two connecting rods 2 55, and the two connecting rods 1 54 are symmetrically distributed on the front and rear sides of the support member 53, and the two connecting rods 2 55 are symmetrically distributed on the front and rear sides of the support member 53, and the ends of the connecting rod 1 54 and the connecting rod 2 55 that are close to each other on the same side are rotatably connected at the center of the end surface of the support member 53, so that when the angle between the connecting rod 1 54 and the connecting rod 2 55 is adjusted, the angle between the two positioning frames 51 can be adjusted.

[0036] In addition, a locking structure 56 is provided at the rotational connection between connecting rod 1 54 and connecting rod 2 55, so that after connecting rod 1 54 and connecting rod 2 55 are adjusted to a suitable angle, connecting rod 1 54 and connecting rod 2 55 are fixed by the locking structure 56, wherein the locking structure 56 can be a bolt structure.

[0037] like Figures 1 to 6 As shown, the control assembly is arranged between the sleeve 2 and the two positioning brackets 51 so that when the column 4 rotates 180°, the two positioning brackets 51 can exchange positions.

[0038] Specifically, the control assembly includes a control rod 1 61 and a control rod 2 62. A slide groove 1 541 is provided on the front connecting rod 1 54, and the extension direction of the slide groove 1 541 is in the same direction as the length direction of the connecting rod 1 54. A slide groove 2 551 is provided on the rear connecting rod 2 55, and the extension direction of the slide groove 2 551 is in the same direction as the length direction of the connecting rod 2 55. A vertical groove 1 531 and a vertical groove 2 532 are respectively provided on the front and rear side surfaces of the support member 53. The vertical groove 1 531 is located on the left side of the rotation connection point of the front connecting rod 1 54 and the connecting rod 2 55, and the vertical groove 2 532 is located on the right side of the rotation connection point of the rear connecting rod 1 54 and the connecting rod 2 55. The upper end of the control rod 1 61 is slidably fitted in the slide groove 1 541 and the vertical groove 1 531 at the same time, and the upper end of the control rod 2 62 is slidably fitted in the slide groove 2 551 and the vertical groove 2 532 at the same time.

[0039] An upward annular surface 21 is provided in the sleeve 2, and the annular surface 21 includes a first section 211, a second section 212 and a third section 213. The first section 211 and the third section 213 are both planes, and the height of the third section 213 is higher than that of the first section 211. The second section 212 is an arcuate surface extending upward. The lower end of the second section 212 is connected to the first section 211, and the upper end is connected to the third section 213. The third section 213 and the first section 211 are connected via a vertical surface. The lower end of the control rod 1 61 and the lower end of the control rod 2 62 are both located at the upper part of the annular surface 21.

[0040] In the initial state, the positioning frame 51 connected to the connecting rod 1 54 is in a horizontal state, the lower end of the control rod 1 61 stops at the upper part of the third section 213, the lower end of the control rod 2 62 is located above the first section 211, and the angles between the two positioning frames 51 are different, and the heights of the lower end of the control rod 2 62 above the first section 211 are also different.

[0041] like Figures 1 to 8 As shown, the driving assembly includes gear 1 71, gear 2 72, cam 73, driving member 74, gear 3 75, annular member 76 and pushing member 77. The driving assembly can drive the sleeve 2 to move in the direction of the elastic member 1 3 and can drive the column 4 to rotate.

[0042] Gear one 71 is rotatably mounted in the base 1 and can move up and down. Gear one 71 has gear rings at its upper and lower ends. Gear two 72 is rotatably mounted above gear one 71. Gear two 72 has a gear ring at its lower end. Gear three 75 is rotatably mounted below gear one 71. Gear three 75 has a gear ring at its upper end. When gear one 71 moves upward, it can mesh with gear two 72. When gear one 71 moves downward, gear three 75 can mesh with gear one 71.

[0043] The cam 73 and the elastic member 3 are arranged on opposite sides of the sleeve 2. The cam 73 is connected to the gear 2 72 through a belt transmission structure 78, so that when the gear 2 72 rotates, the cam 73 can be driven to rotate. The cam 73 is composed of an arc surface 1 731 and an arc surface 2 732. The distance from the middle to the rotation center of the cam 73 on the arc surface 1 731 to the distance from the two ends to the rotation center of the cam 73 gradually increases, and the distance from each position on the arc surface 2 732 to the rotation center of the cam 73 is equal. Among them, a roller 2 82 is provided at the position on the sleeve 2 that stops against the cam 73 to facilitate the rotation of the cam 73.

[0044] Gear three 75 is connected to the column 4 through belt drive structure two 79, so that when gear three 75 rotates, it can drive the column 4 to rotate, wherein gear one 71, gear two 72 and gear three 75 are coaxially fixedly connected through a rotating shaft 83, and a support rod one 84 is rotatably connected to the rotating shaft 83, and a support rod two 85 is rotatably connected to the bottom end of the column 4, and the support rod one 84 and the support rod two 85 are rotatably connected, so that the column 4 can stably move synchronously with the sleeve 2.

[0045] The ring member 76 is rotatably mounted in the base 1. The upper end surface of the ring member 76 is composed of an end surface 1 761, an end surface 2 762, an end surface 3 763, an end surface 4 764, an end surface 5 765 and an end surface 6 766 arranged in sequence. The end surface 2 762 and the end surface 6 766 are at the same height. The end surface 1 761, the end surface 3 763 and the end surface 5 765 are at the same height. The height of the end surface 1 761 is lower than the height of the end surface 2 762. The height of the end surface 4 764 is lower than the height of the end surface 3 763. The lower end stop of the push member 77 It abuts against the upper end surface of the ring member 76, and the upper end is rotatably connected to the gear 1 71 and can drive the gear 1 71 to move up and down, wherein the lower end of the pushing member 77 is provided with a roller 1 81, and the roller 1 81 stops at the upper end surface of the ring member 76 to facilitate the lower end of the pushing member 77 to move along the upper end surface of the ring member 76, wherein the pushing member 77 and the base 1 are slidably connected up and down, and an elastic member 2 86 is provided between the pushing member 77 and the base 1, and the elastic member 2 86 is a spring, and its upper and lower ends are respectively fixedly connected to the base 1 and the pushing member 77.

[0046] The driving member 74 is fixedly installed in the base 1. The driving member 74 can be a motor, and a gear four 87 is fixedly installed on its output end. A gear five 88 is coaxially fixedly installed on the bottom of the annular member 76, and a gear six 89 is coaxially fixedly installed on the bottom end of the rotating shaft 83. The gear four 87 is meshed with the gear five 88 and the gear six 89 at the same time. Therefore, when the gear four 87 is driven to rotate by the motor, the gear five 88 and the gear six 89 can be driven to rotate.

[0047] Before starting welding, keep the positioning frame 51 on the left side in a horizontal state, then adjust the angle between the two positioning frames 51 according to the required bending angle of the copper bar, and fix the two positioning frames 51 by the locking structure 56. At this time, the lower end of the control rod 1 61 stops at the upper part of the third section 213 in the annular surface 21, and the lower end of the control rod 2 62 is located above the first section 211 in the annular surface 21. Then, place the copper bar with the adjusted angle into the slot 511 on the two positioning frames 51, and fix the copper bar by the fixing members 52 on the two positioning frames 51. In the initial state, the middle position of the arc surface 1 731 stops at the side of the sleeve 2, that is, the middle position of the arc surface 1 731 stops at the roller 2 82, and the roller 1 81 installed at the bottom end of the push member 77 stops at the end face 1 761 of the annular member 76.

[0048] When welding begins, first, the driving member 74 is controlled to operate, driving the gear 5 88 and the gear 6 89 to rotate, the gear 5 88 will drive the ring member 76 to rotate, the gear 6 89 will drive the shaft 83 and the gear 1 71 to rotate, when the ring member 76 rotates, the roller 1 81 will move from the end face 1 761 to the end face 2 762, because the height of the end face 2 762 is higher than the end face 1 761, it will drive the push member 77 and the gear 1 71 to move upward, the elastic member 2 86 will be stretched, the gear 1 71 will mesh with the gear 2 72, the gear 1 71 will rotate synchronously with the gear 2 72, and the gear 2 72 will drive the cam 73 through the belt transmission structure 1 78. Rotation, since the distance from the middle of the arc surface 731 to the rotation center of the cam 73 and the distance from the two ends to the rotation center of the cam 73 gradually increases, the rotating cam 73 will push the sleeve 2 and the column 4 to move to the left, and the elastic member 3 will be compressed. When the roller 2 82 contacts the arc surface 2, the left end of the copper bar to be welded will move to the welding station position. As the cam 73 continues to rotate, since the distance from each position on the arc surface 2 732 to the rotation center of the cam 73 is equal, during the movement of the roller 2 82 relative to the arc surface 2, the left end of the copper bar will remain stationary. At this time, the left end of the copper bar can be welded using a welding device.

[0049] After welding is completed, the cam 73 will rotate until the roller 2 82 is separated from the arc surface 2, and the cam 73 will contact the arc surface 1 again. As the cam 73 continues to rotate, the sleeve 2 and the column 4 will gradually move to the right under the elastic push of the elastic member 1 3. When the roller 2 82 contacts the arc surface 1 again, the sleeve 2 and the column 4 will return to the initial position. At this time, the roller 1 81 will be separated from the end surface 2 762, and the push member 77 will move downward under the pull of the elastic member 2 86. , roller 1 81 will stop against end face 3 763, gear 1 71 will be out of mesh with gear 2 72, as annular member 76 continues to rotate, when roller 1 81 is out of mesh with end face 3 763, push member 77 will move downward under the pull of elastic member 2 86, roller 1 81 will stop against end face 4 764, and gear 1 71 will move downward under the drive of push member 77 and mesh with gear 3 75, thereby driving gear 3 75 to rotate, and gear 3 75 is driven by belt transmission. The second moving structure 79 drives the column 4 to rotate, and the rotation of the column 4 drives the support member 53, the two positioning frames 51, the connecting rod 1 54, the connecting rod 2 55, the control rod 1 61 and the control rod 2 62 to rotate. When the bottom end of the control rod 2 62 rotates to contact the second section 212 of the annular surface 21, the control rod 1 61 will break away from the contact with the third section 213. Since the second section 212 is an arc-shaped surface extending upward, as the column 4 continues to rotate, the fixed section connected to the connecting rod 1 54 The positioning frame 51 will rotate downward, and the positioning frame 51 connected to the second connecting rod 55 will rotate upward. When the column 4 rotates 180°, the bottom end of the second control rod 62 will move to the third section 213, and the positioning frame 51 connected to the second connecting rod 55 will move to a left and horizontal state, and the positioning frame 51 connected to the first connecting rod 54 will move to the right, that is, the positioning frame 51 originally connected to the first connecting rod 54 and the positioning frame 51 originally connected to the second connecting rod 55 will exchange positions with each other.

[0050] After the two positioning frames 51 exchange positions with each other, as the ring member 76 continues to rotate, roller 1 81 will disengage from end face 4 764 and move to end face 5 765. Since the height of end face 5 765 is higher than end face 4 764, the push member 77 and gear 1 71 will move upward, gear 1 71 will disengage from gear 3 75, and the column 4 will stop rotating. As the ring member 76 continues to rotate, roller 1 81 will disengage from end face 5 765 and move to end face 6 766. Since the height of end face 6 766 is higher than end face 5 765, gear 1 71 will mesh with gear 2 72 again. Next, the rotation process of gear 2 72 and cam 73 is the same as mentioned above, and the welding of the other end of the copper bar can be completed. It will not be elaborated here. Finally, when the welding of the other end of the copper bar is completed, the lower end of roller 1 81 will move back to the initial end face 1 761, and gear 1 71 will no longer mesh with gear 2 72.

[0051] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. An automatic copper bar welding device for bus duct production, comprising a base, characterized in that: It also includes a sleeve, an elastic member 1, a column, a positioning assembly, a control assembly and a driving assembly. The sleeve is slidably connected to the base. The elastic member 1 is arranged on one side of the sliding direction of the sleeve and can elastically push the sleeve. The column is rotatably installed in the sleeve. The positioning assembly includes two positioning frames, which are installed at the upper end of the column. There is an angle between the two positioning frames, and the size of the angle can be adjusted. The ends of the two positioning frames that are away from each other are both provided with fixing members for fixing the copper bar. The control assembly is arranged between the sleeve and the two positioning frames, so that when the column rotates 180°, the two positioning frames can exchange positions. The driving assembly can drive the sleeve to move in the direction where the elastic member 1 is located, and can drive the column to rotate. The positioning assembly also includes a support member, which is cylindrical, and the ends of the two positioning frames close to each other are both in contact with the circumferential surface of the support member; Of the two positioning frames, one positioning frame is fixedly connected with a connecting rod 1, and the other positioning frame is fixedly connected with a connecting rod 2, and the ends of the connecting rod 1 and the connecting rod 2 close to each other are rotatably connected; The control assembly includes a control rod 1 and a control rod 2. The connecting rod 1 is provided with a slide groove 1, and the connecting rod 2 is provided with a slide groove 2. Vertical grooves 1 and 2 are respectively provided on both side surfaces of the support member. The vertical grooves 1 and 2 are respectively located on both sides of the rotation connection point of the connecting rod 1 and the connecting rod 2. The upper end of the control rod 1 slides and fits in the slide groove 1 and the vertical groove 1 at the same time, and the upper end of the control rod 2 slides and fits in the slide groove 2 and the vertical groove 2 at the same time. An upward annular surface is provided in the sleeve, and the annular surface includes a first section, a second section and a third section. The first section and the third section are both planes, and the height of the third section is higher than that of the first section. The second section is an arc-shaped surface extending upward. The lower end of the second section is connected to the first section, and the upper end is connected to the third section. The lower end of the control rod 1 and the lower end of the control rod 2 are both located at the upper part of the annular surface.

2. The automatic copper bar welding device for bus duct production according to claim 1 is characterized in that: The driving assembly includes gear one, gear two, a cam and a driving member. Gear one is rotatably installed in the base and can move up and down. A gear ring is provided at the upper end of gear one. Gear two is rotatably installed above gear one. A gear ring is provided at the lower end of gear two and can mesh with gear one when gear one moves upward. The cam and elastic member one are arranged on opposite sides of the sleeve. The cam is connected to gear two. When gear two rotates, it can drive the cam to rotate, and the driving member can drive gear one to rotate.

3. The automatic copper bar welding device for bus duct production according to claim 2 is characterized in that: The driving assembly also includes gear three, which is rotatably installed below gear one. Gear three and the lower end of gear one are both provided with gear rings. When the gear moves down, gear three can mesh with gear one. Gear three is also connected to the column, and when gear three rotates, it can drive the column to rotate.

4. The automatic copper bar welding device for bus duct production according to claim 3 is characterized in that: The driving assembly also includes a ring member and a push member. The ring member is rotatably installed in the base. The upper end face of the ring member is composed of end face one, end face two, end face three, end face four, end face five and end face six arranged in sequence. End face two and end face six are at the same height, end face one, end face three and end face five are at the same height, and the height of end face one is lower than the height of end face two, and the height of end face four is lower than the height of end face three. The lower end of the push member stops at the upper end face of the ring member, and the upper end is rotatably connected to gear one and can drive gear one to move up and down.

5. The automatic copper bar welding device for bus duct production according to claim 4 is characterized in that: The lower end of the push piece is provided with a roller 1, and the roller 1 abuts against the upper end surface of the annular piece.

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