Automatic welding tool for strain clamp

Abstract

This utility model provides an automatic welding fixture for tension clamps, belonging to the field of welding fixture technology. It includes a base and a positioning sleeve mounted on the base. Gears and a fixing frame are provided on the upper outer wall of the base. A motor is mounted on the upper end of the fixing frame. The lower end of the positioning sleeve is located on the inner wall of the base. A toothed ring is mounted on the bottom side wall of the positioning sleeve. Multiple positioning grooves are formed inside the positioning sleeve, and positioning blocks are installed on the inner walls of the positioning grooves. A limit frame is installed on one side of the positioning sleeve. This utility model, with its positioning sleeve and internal positioning components, can quickly position the aluminum tube, preventing displacement of the aluminum tube during subsequent welding, thereby improving the welding quality. Furthermore, the airbag simultaneously positions the aluminum tube and limits the guide vane, ensuring accurate placement of the guide vane and aluminum tube after placement, preventing positional deviations during welding that could affect subsequent welding quality.

Description

Technical Field

[0001] This utility model relates to the field of welding fixture technology, and more specifically, to an automatic welding fixture for tension clamps. Background Technology

[0002] Tension clamps are hardware used to fix conductors to bear conductor tension and hang conductors on tension strings or towers. Depending on the structure and installation conditions, tension clamps include bolt-type tension clamps and wedge-type tension clamps. In addition to bearing the full tension of the conductor or lightning protection wire, tension clamps also act as conductors. Therefore, once installed, these clamps cannot be removed and are also called dead clamps.

[0003] In existing technologies, the production process of tension clamps requires welding to fix the aluminum tube and guide plate. However, some welding fixtures have poor positioning effects on the aluminum tube and guide plate, causing misalignment between them and affecting the quality of the subsequent welded products. How to invent an automatic welding fixture for tension clamps to solve these problems has become an urgent issue for those skilled in the art. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an automatic welding fixture for tension clamps, which aims to solve the problem that the welding fixture has poor positioning effect on aluminum tubes and guide vanes, and the positions of the two will be offset, thus affecting the quality of the product after welding.

[0005] This utility model is implemented as follows:

[0006] This utility model provides an automatic welding fixture for tension clamps, including a base and a positioning sleeve disposed on the base. The upper outer wall of the base is provided with gears and a fixing frame, and a motor is installed at the upper end of the fixing frame.

[0007] The lower end of the positioning sleeve is set on the inner wall of the base, a toothed ring is installed on the bottom side wall of the positioning sleeve, multiple positioning grooves are opened inside the positioning sleeve, positioning blocks are installed on the inner wall of the positioning grooves, and a limit frame is installed on one side of the positioning sleeve.

[0008] Preferably, an aluminum tube is placed on the inner wall of the positioning sleeve, one end of the limiting frame is fixedly connected to the side wall of the positioning sleeve, a guide plate is placed on the limiting frame, the two end side walls of the gear are respectively rotatably connected to the inner walls of the base and the fixing frame, and the output end of the motor is fixedly connected to one end of the gear.

[0009] Preferably, the side wall of the positioning sleeve is rotatably connected to the inner wall of the base, the inner wall of the gear ring is fixedly connected to the outer wall of the positioning sleeve, and the gear ring and the gear are meshed together.

[0010] Preferably, a sliding groove is formed at the bottom end of the positioning groove. The inner wall of the positioning groove is slidably connected to the outer wall of the positioning block. A slider slidably connected to the inner wall of the sliding groove is fixedly connected to the lower end of the positioning block. A positioning spring is fixedly connected to one side of the positioning block.

[0011] Preferably, an adjustment groove is formed inside the positioning sleeve near the lower part of one of the positioning grooves. A limiting groove is formed on the inner wall of the adjustment groove. An inclined block is slidably connected to the inner wall of the adjustment groove. Limiting blocks slidably connected to the inner wall of the limiting groove are fixedly connected to both sides of the inclined block.

[0012] Preferably, an extrusion rod is fixedly connected to the lower end of the slider near the upper part of the inclined block. One end of the extrusion rod abuts against the inclined surface of the inclined block. An adjustment spring is fixedly connected to the lower end of the inclined block.

[0013] Preferably, a piston cavity is formed inside the positioning sleeve near the upper part of the adjustment groove. A sliding rod is fixedly connected to the upper end of the inclined block. A piston piece piston-connected to the piston cavity is fixedly connected to the upper end of the sliding rod.

[0014] Preferably, air channels are formed on both inner walls of the piston cavity. An airbag is installed on the inner wall of the limiting frame. The airbag is in a "C" shape. Two air ports of the airbag are respectively fixedly connected to one end of the air channels.

[0015] Preferably, a pressing plate is slidably connected to one inner wall of the limiting frame. A screw rod is rotatably connected to the inner wall of the pressing plate. The outer wall of the screw rod is threadedly connected to the inner wall of the limiting frame. A knob is fixedly connected to one end of the screw rod.

[0016] The beneficial effects of the present utility model are as follows:

[0017] The provided positioning sleeve and the internal positioning components can quickly position the aluminum tube, avoiding the deviation of the position of the aluminum tube during the subsequent welding process, thereby improving the subsequent welding quality. And the provided airbag limits the guide piece while positioning the aluminum tube, thereby realizing the limitation of the guide piece, ensuring the accurate position of the guide piece and the aluminum tube after placement, and avoiding the deviation of the positions between the two during welding, which affects the subsequent welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1This is a schematic diagram of an automatic welding fixture for tension clamps provided by an embodiment of the present invention;

[0020] Figure 2 This is a partial half-sectional view of an automatic welding fixture for tension clamps provided in an embodiment of this utility model;

[0021] Figure 3 This utility model provides an automatic welding fixture for tension clamps. Figure 2 Enlarged view of the structure of region A in the middle;

[0022] Figure 4 This is a half-sectional view of the overall structure of an automatic welding fixture for tension clamps provided by an embodiment of this utility model;

[0023] Figure 5 This utility model provides an automatic welding fixture for tension clamps. Figure 4 Enlarged view of the structure of region B in the middle;

[0024] Figure 6 This utility model provides an automatic welding fixture for tension clamps. Figure 4 Enlarged view of the structure of region C in the middle;

[0025] Figure 7 This is a partial structural cross-sectional view of an automatic welding fixture for tension clamps provided by an embodiment of this utility model.

[0026] In the diagram: 1. Base; 11. Gear; 12. Fixing frame; 13. Motor; 2. Positioning sleeve; 21. Gear ring; 22. Positioning groove; 221. Slide groove; 23. Positioning block; 231. Slider; 232. Extrusion rod; 24. Positioning spring; 25. Adjustment groove; 251. Limiting groove; 26. Piston chamber; 261. Air passage; 27. Inclined block; 271. Limiting block; 272. Slide rod; 273. Piston plate; 274. Adjustment spring; 28. Limiting frame; 281. Airbag; 29. ​​Extrusion plate; 291. Screw; 292. Knob. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] Example, refer to Figures 1-3An automatic welding fixture for tension clamps includes a base 1 and a positioning sleeve 2 disposed on the base 1. A gear 11 and a fixing frame 12 are disposed on the upper outer wall of the base 1, and a motor 13 is installed at the upper end of the fixing frame 12.

[0029] The lower end of the positioning sleeve 2 is set on the inner wall of the base 1. A toothed ring 21 is installed on the bottom side wall of the positioning sleeve 2. Multiple positioning grooves 22 are opened inside the positioning sleeve 2. Positioning blocks 23 are installed on the inner wall of the positioning grooves 22. A limit frame 28 is installed on one side of the positioning sleeve 2.

[0030] Furthermore; an aluminum tube is placed on the inner wall of the positioning sleeve 2, one end of the limiting frame 28 is fixedly connected to the side wall of the positioning sleeve 2, a guide plate is placed on the limiting frame 28, the two side walls of the gear 11 are rotatably connected to the inner walls of the base 1 and the fixing frame 12 respectively, the output end of the motor 13 is fixedly connected to one end of the gear 11, the side wall of the positioning sleeve 2 is rotatably connected to the inner wall of the base 1, the inner wall of the gear ring 21 is fixedly connected to the outer wall of the positioning sleeve 2, the gear ring 21 and the gear 11 are meshed, a sliding groove 221 is opened at the bottom of the positioning groove 22, the inner wall of the positioning groove 22 is slidably connected to the outer wall of the positioning block 23, a slider 231 that is slidably connected to the inner wall of the sliding groove 221 is fixedly connected to the lower end of the positioning block 23, and a positioning spring 24 is fixedly connected to one side of the positioning block 23.

[0031] It should be noted that before welding the aluminum tube and the guide plate, the guide plate is first placed on the limiting frame 28, and then the aluminum tube is passed downward through the guide plate into the positioning sleeve 2. During the downward placement, the aluminum tube is pushed so that its lower end abuts against the surrounding positioning blocks 23, causing it to move into the positioning groove 22 until the aluminum tube passes through the positioning blocks 23. At this time, the positioning blocks 23 rebound under the action of the positioning spring 24 to clamp and position the aluminum tube. The elastic coefficient of the positioning spring 24 is small, so when the aluminum tube is removed later, it can be directly removed by overcoming the friction force, thereby quickly positioning the aluminum tube and avoiding the displacement of the aluminum tube position during the subsequent welding process, thus improving the subsequent welding quality.

[0032] Further, an adjustment groove 25 is provided inside the positioning sleeve 2 near the lower part of one of the positioning grooves 22. A limiting groove 251 is provided on the inner wall of the adjustment groove 25. An inclined block 27 is slidably connected to the inner wall of the adjustment groove 25. Limiting blocks 271 fixedly connected to both sides of the inclined block 27 are slidably connected to the inner wall of the limiting groove 251. The lower end of the slider 231 near the upper part of the inclined block 27 is fixedly connected with a pressing rod 232. One end of the pressing rod 232 abuts against the inclined surface of the inclined block 27. The lower end of the inclined block 27 is fixedly connected with an adjustment spring 274. An air piston chamber 26 is provided inside the positioning sleeve 2 near the upper part of the adjustment groove 25. The upper end of the inclined block 27 is fixedly connected with a sliding rod 272. The upper end of the sliding rod 272 is fixedly connected with a piston piece 273 that is piston-connected to the air piston chamber 26. Air channels 261 are provided on both inner walls of the air piston chamber 26. An airbag 281 is installed on the inner wall of the limiting frame 28. The airbag 281 is in a "U" shape. Two air ports of the airbag 281 are respectively fixedly connected to one end of the air channels 261. A pressing plate 29 is slidably connected to one side inner wall of the limiting frame 28. A screw rod 291 is rotatably connected to the inner wall of the pressing plate 29. The outer wall of the screw rod 291 is threadedly connected to the inner wall of the limiting frame 28. One end of the screw rod 291 is fixedly connected with a knob 292.

[0033] It should be noted that: while positioning the aluminum tube, one of the positioning blocks 23 drives the pressing rod 232 at the lower end of the slider 231 to move simultaneously during the sliding process. During the movement of the pressing rod 232, it will abut against the inclined surface of the inclined block 27 and compress the adjustment spring 274 below it. At the same time, the piston piece 273 provided at the upper end of the inclined block 27 compresses the air in the air piston chamber 26 downward, causing the air to enter the airbag 281 through the air channels 261, thereby making the airbag 281 expand. The position of the airbag 281 located at the upper end of the flow guide piece expands and unfolds, thus realizing the limitation of the flow guide piece, ensuring the precise position of the flow guide piece and the aluminum tube after placement, and avoiding deviation in their positions during welding, which affects the subsequent welding quality.

[0034] During welding, the welding torch is aligned with the gap between the flow guide piece and the aluminum tube. At the same time, the motor 13 is started to drive the gear 11 to rotate. The gear 11 meshes with the gear ring 21 to make the positioning sleeve 2 drive the entire aluminum tube and the flow guide piece to rotate, thereby realizing rotary welding and improving the automation degree during the welding process. At the same time, after welding, the knob 292 is rotated to make the screw rod 291 move the pressing plate 29 outward. At this time, the expansion space of the airbag 281 expands and it moves towards one side of the pressing plate 29. At the same time, the pressure inside the airbag 281 becomes smaller and the whole becomes soft, and then the welded aluminum tube and the flow guide piece can be taken out upward.

[0035] The working principle of this automatic welding tool for strain clamps:

[0036] Before welding the aluminum tube and the guide plate, first place the guide plate on the limiting frame 28, then pass the aluminum tube downward through the guide plate into the positioning sleeve 2. During the downward placement, push the aluminum tube so that its lower end abuts against the surrounding positioning blocks 23, causing it to move into the positioning groove 22 until the aluminum tube passes through the positioning blocks 23. At this time, the positioning blocks 23 rebound under the action of the positioning spring 24 to clamp and position the aluminum tube. At the same time, the airbag 281 inflates to limit the guide plate. During welding, the welding torch is aimed at the seam between the guide plate and the aluminum tube. At the gap, the motor 13 is started to drive the gear 11 to rotate. The gear 11 meshes with the toothed ring 21, causing the positioning sleeve 2 to drive the entire aluminum tube and guide plate to rotate, thereby realizing rotational welding and improving the automation level of the welding process. After welding, the knob 292 is turned to make the screw 291 move outward to drive the extrusion plate 29 to move. At this time, the expansion space of the airbag 281 expands, causing it to move to one side of the extrusion plate 29. At the same time, the pressure inside the airbag 281 decreases and the whole becomes soft, so the aluminum tube and guide plate after welding can be taken out upward.

[0037] It should be noted that the specific model and specifications of the motor need to be selected and determined based on the actual specifications of the device. The specific selection and calculation method adopts the existing technology in this field, so it will not be described in detail here.

[0038] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An automatic welding fixture for tension clamps, comprising a base (1) and a positioning sleeve (2) disposed on the base (1), characterized in that, On the upper outer wall of the base (1), a gear (11) and a fixing frame (12) are provided. At the upper end of the fixing frame (12), a motor (13) is installed. The lower end of the positioning sleeve (2) is arranged on the inner wall of the base (1). On the bottom side wall of the positioning sleeve (2), a toothed ring (21) is installed. Inside the positioning sleeve (2), a plurality of positioning grooves (22) are formed. On the inner wall of the positioning groove (22), a positioning block (23) is installed. On one side of the positioning sleeve (2), a limiting frame (28) is installed.

2. The automatic welding fixture for tension clamps according to claim 1, characterized in that, An aluminum tube is placed inside the inner wall of the positioning sleeve (2). One end of the limiting frame (28) is fixedly connected to the side wall of the positioning sleeve (2). A flow guiding piece is placed on the limiting frame (28). The two side walls of the gear (11) are respectively rotationally connected to the inner walls of the base (1) and the fixing frame (12). The output end of the motor (13) is fixedly connected to one end of the gear (11).

3. The automatic welding fixture for tension clamps according to claim 2, characterized in that, The side wall of the positioning sleeve (2) is rotationally connected to the inner wall of the base (1). The inner wall of the toothed ring (21) is fixedly connected to the outer wall of the positioning sleeve (2). The toothed ring (21) and the gear (11) are meshed and connected.

4. The automatic welding fixture for tension clamps according to claim 3, characterized in that, At the bottom end of the positioning groove (22), a sliding groove (221) is formed. The inner wall of the positioning groove (22) and the outer wall of the positioning block (23) are slidably connected. The lower end of the positioning block (23) is fixedly connected to a slider (231) that is slidably connected to the inner wall of the sliding groove (221). On one side of the positioning block (23), a positioning spring (24) is fixedly connected.

5. The automatic welding fixture for tension clamps according to claim 1, characterized in that, Inside the positioning sleeve (2) near the lower part of one of the positioning grooves (22), an adjusting groove (25) is formed. On the inner wall of the adjusting groove (25), a limiting groove (251) is formed. An inclined block (27) is slidably connected to the inner wall of the adjusting groove (25). On both sides of the inclined block (27), limiting blocks (271) that are slidably connected to the inner wall of the limiting groove (251) are fixedly connected.

6. The automatic welding fixture for tension clamps according to claim 5, characterized in that, The lower end of the slider (231) near the upper part of the inclined block (27) is fixedly connected to a pressing rod (232). One end of the pressing rod (232) abuts against the inclined surface of the inclined block (27). The lower end of the inclined block (27) is fixedly connected to an adjusting spring (274).

7. The automatic welding fixture for tension clamps according to claim 6, characterized in that, Inside the positioning sleeve (2) near the upper part of the adjusting groove (25), a piston chamber (26) is formed. The upper end of the inclined block (27) is fixedly connected to a sliding rod (272). The upper end of the sliding rod (272) is fixedly connected to a piston piece (273) that is piston-connected to the piston chamber (26).

8. The automatic welding fixture for tension clamps according to claim 7, characterized in that, On both side inner walls of the piston chamber (26), air channels (261) are formed. Inside the inner wall of the limiting frame (28), an airbag (281) is installed. The airbag (281) is in an "L" shape. The two air ports of the airbag (281) are respectively fixedly connected to one end of the air channels (261).

9. The automatic welding fixture for tension clamps according to claim 8, characterized in that, On one side inner wall of the limiting frame (28), a pressing plate (29) is slidably connected. Inside the pressing plate (29), a screw rod (291) is rotationally connected. The outer wall of the screw rod (291) is threadedly connected to the inner wall of the limiting frame (28). One end of the screw rod (291) is fixedly connected to a knob (292).

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