Welding positioning device for welded part

Abstract

The utility model relates to the technical field of welded part welding, and discloses a welded part welding positioning device which comprises a metal plate, and a positioning mechanism is arranged on the outer wall of the metal plate. The positioning mechanism comprises a mounting seat, the mounting seat is clamped on the end portion of the metal plate in a sleeving mode, a pin shaft is fixedly mounted at the top of the mounting seat, the outer wall of the pin shaft is rotationally sleeved with a rotating plate, an extension plate is fixedly mounted on the outer wall of the rotating plate, and the whole positioning mechanism is mounted on the metal plate through the mounting seat. By rotating the rotating plate and the rotating lead screw, the position of the sliding block relative to the metal plate is adjusted, then the positions of the U-shaped base, the rotating shaft and the positioning plate relative to the metal plate are adjusted, the positioning plate is made to be close to the welding part, the rotating shaft is rotated to drive the positioning plate to rotate, the positioning groove in the positioning plate can be aligned with the welding part, and then the welding part is positioned. And the problems that deviation is easily caused by visual inspection welding and the cost is increased due to positioning hole forming are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of welded parts welding, in particular to a welded parts welding positioning device. Background Art

[0002] The existing automobile industry uses a large number of sheet metal parts, which are combined into complex supporting or covering parts through stamping, riveting and welding. Sheet metal needs to be positioned during riveting and welding. Conventional welding positioning includes visual positioning and positioning hole positioning. Although visual positioning is simple and fast, it is easy to cause welding position deviation during welding. If positioning with positioning holes is used, it is necessary to punch corresponding positioning holes at the welding part according to design requirements during sheet metal processing, which increases the sheet metal processing process and is not conducive to cost control. Utility Model Content

[0003] The utility model aims to provide a welding positioning device for welded parts to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a welding positioning device for welded parts, comprising a sheet metal, wherein the outer wall of the sheet metal is provided with a positioning mechanism;

[0005] The positioning mechanism includes a mounting seat, which is clamped on the end of the sheet metal, a pin shaft is fixedly installed on the top of the mounting seat, a rotating plate is rotatably sleeved on the outer wall of the pin shaft, an extension plate is fixedly installed on the outer wall of the rotating plate, a slider is slidably provided on the inner wall of the extension plate, a screw rod is threadedly connected to the inner wall of the slider, and the screw rod passes through the inner wall of the extension plate through a bearing, a U-shaped seat is fixedly installed on the outer wall of the slider, and the inner wall of the U-shaped seat is rotatably connected with a rotating shaft through a bearing, a positioning plate is fixedly installed on the bottom end of the rotating shaft, and a positioning groove is provided on the outer wall of the positioning plate.

[0006] Furthermore, the mounting seat includes a U-shaped plate, a metal elastic sheet is fixedly installed on the top inner wall of the U-shaped plate, a lower pressure plate is fixedly installed on the bottom of the metal elastic sheet, the lower pressure plate is pressed on the upper surface of the sheet metal, and the lower surface of the sheet metal is fitted with the bottom inner wall of the U-shaped plate.

[0007] Furthermore, a magnet ring is fixedly mounted on the top of the mounting seat, a friction ring is fixedly sleeved on the outer wall of the magnet ring, the magnet ring is adsorbed on the bottom of the rotating plate, and the upper surfaces of the magnet ring and the friction ring are flush.

[0008] Furthermore, the outer wall fixing sleeve of the rotating shaft is provided with a rotating ring, the top of the U-shaped seat is threadedly connected with a clamping bolt, and the bottom end of the clamping bolt is pressed on the top of the rotating ring.

[0009] Furthermore, there are three positioning grooves, and the inner diameters and shapes of the three positioning grooves are different.

[0010] Furthermore, a silicone pad is fixedly installed on the bottom inner wall of the U-shaped plate and the bottom of the lower pressure plate, and the outer walls of the U-shaped plate and the lower pressure plate on one side facing the sheet metal are both inclined curved surfaces.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. Install the entire positioning mechanism on the sheet metal through the mounting seat, adjust the position of the slider relative to the sheet metal by rotating the rotating plate and the screw, and then adjust the position of the U-shaped seat, the rotating shaft, and the positioning plate relative to the sheet metal, so that the positioning plate is close to the welding part, and the positioning plate is driven to rotate by rotating the rotating shaft so that the positioning groove on the positioning plate can be aligned with the welding part, and then the welding part is positioned to avoid the problem of deviation caused by visual welding and the increase in cost caused by opening the positioning hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the positioning mechanism of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the rotating plate and the magnet ring of the utility model;

[0016] Figure 4 It is a structural schematic diagram of the positioning plate and the U-shaped seat of the utility model.

[0017] In the figure: 1. sheet metal; 2. positioning mechanism; 201. pin; 202. mounting seat; 203. rotating plate; 204. extension plate; 205. screw rod; 206. slider; 207. U-shaped seat; 208. rotating shaft; 209. positioning plate; 2010. positioning groove; 2021. U-shaped plate; 2022. metal elastic sheet; 2023. lower pressure plate; 3. silicone pad; 4. magnet ring; 5. friction ring; 6. rotating ring; 7. tightening bolt. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] See also Figure 1-Figure 4 , the utility model provides a technical solution: a welding positioning device for welded parts, comprising a sheet metal 1, the outer wall of the sheet metal 1 is provided with a positioning mechanism 2;

[0020] The positioning mechanism 2 includes a mounting seat 202, which is sleeved on the end of the sheet metal 1. A pin shaft 201 is fixedly installed on the top of the mounting seat 202. A rotating plate 203 is rotatably sleeved on the outer wall of the pin shaft 201. An extension plate 204 is fixedly installed on the outer wall of the rotating plate 203. A slider 206 is slidably provided on the inner wall of the extension plate 204. A screw rod 205 is threadedly connected to the inner wall of the slider 206. The screw rod 205 passes through the inner wall of the extension plate 204 through a bearing. A U-shaped seat 207 is fixedly installed on the outer wall of the slider 206. A rotating shaft 208 is rotatably connected to the inner wall of the U-shaped seat 207 through a bearing. A positioning plate 209 is fixedly installed on the bottom end of the rotating shaft 208. The outer wall of the positioning plate 209 is provided with a positioning groove 2010. The entire positioning mechanism 2 is installed on the sheet metal 1 through the mounting seat 202. The position of the slider 206 relative to the sheet metal 1 is adjusted by rotating the rotating plate 203 and the rotating screw 205, and then the position of the U-shaped seat 207, the rotating shaft 208, and the positioning plate 209 relative to the sheet metal 1 is adjusted, so that the positioning plate 209 is close to the welding part. The positioning plate 209 is driven to rotate by rotating the rotating shaft 208, so that the positioning groove 2010 on the positioning plate 209 can be aligned with the welding part, and then the welding part is positioned, avoiding the problem that visual welding is prone to deviation and the cost increase caused by opening the positioning hole;

[0021] The mounting seat 202 includes a U-shaped plate 2021, a metal elastic sheet 2022 is fixedly mounted on the top inner wall of the U-shaped plate 2021, a lower pressing plate 2023 is fixedly mounted on the bottom of the metal elastic sheet 2022, the lower pressing plate 2023 is pressed on the upper surface of the sheet metal 1, the lower surface of the sheet metal 1 is fitted with the bottom inner wall of the U-shaped plate 2021, the metal elastic sheet 2022 pushes the lower pressing plate 2023 to press on the sheet metal 1, the entire mounting seat 202 is clamped on the sheet metal 1, and the entire positioning mechanism 2 can be removed after welding is completed, and is used to position the next sheet metal 1 when welding;

[0022] A magnet ring 4 is fixedly mounted on the top of the mounting seat 202, and a friction ring 5 is fixedly sleeved on the outer wall of the magnet ring 4. The magnet ring 4 is adsorbed on the bottom of the rotating plate 203, and the upper surfaces of the magnet ring 4 and the friction ring 5 are flush. The magnet ring 4 adsorbs the rotating plate 203, so that the bottom of the rotating plate 203 fits with the upper surface of the friction ring 5. The friction force between the friction ring 5 and the rotating plate 203 is used to prevent the rotating plate 203 from rotating, thereby preventing the position of the positioning plate 209 from changing during welding.

[0023] The outer wall of the rotating shaft 208 is fixed with a rotating ring 6, and the top of the U-shaped seat 207 is threadedly connected with a clamping bolt 7, and the bottom end of the clamping bolt 7 is pressed on the top of the rotating ring 6. By rotating the clamping bolt 7, the bottom end of the clamping bolt 7 is tightly pressed on the rotating ring 6, and the rotating ring 6 is clamped and fixed, thereby fixing the rotating shaft 208 to prevent the positioning plate 209 from rotating during welding;

[0024] There are three positioning grooves 2010, and the inner diameters and shapes of the three positioning grooves 2010 are different. The three grooves are semicircular, rectangular, and V-shaped, respectively, and are used to select the corresponding positioning groove 2010 according to the shape of the welded part, ensuring that a part of the welded corner can extend into the positioning groove 2010, thereby ensuring the positioning effect of the positioning mechanism 2;

[0025] The bottom inner wall of the U-shaped plate 2021 and the bottom of the lower pressure plate 2023 are fixedly installed with a silicone pad 3. The outer walls of the U-shaped plate 2021 and the lower pressure plate 2023 facing the sheet metal 1 are both inclined curved surfaces. The silicone pad 3 can effectively increase the friction force on the sheet metal 1, thereby preventing the mounting seat 202 from falling off the sheet metal 1. The inclined curved surface is provided to facilitate the mounting seat 202 to be stuck on the sheet metal 1 after being pushed horizontally.

[0026] Working principle: When in use, push the U-shaped plate 2021 horizontally so that the lower pressure plate 2023 and the inner wall of the bottom of the U-shaped plate 2021 contact one end of the sheet metal 1, so that the sheet metal 1 can push the lower pressure plate 2023 upward, thereby squeezing the metal elastic sheet 2022 to deform, until one end of the sheet metal 1 contacts the inner side of the side of the U-shaped plate 2021, and the installation of the positioning mechanism 2 is completed. Pull up the rotating plate 203 to separate the rotating plate 203 from the friction ring 5, and then rotate the rotating plate 203 to adjust the direction of the extension plate 204, and lower the rotating plate 203 makes the rotating plate 203 contact with the friction ring 5, and then rotates the screw rod 205 to adjust the position of the slider 206, and then adjusts the position of the U-shaped seat 207, the rotating shaft 208, and the positioning plate 209 relative to the sheet metal 1, so that the positioning plate 209 is close to the welding part, and the positioning plate 209 is driven to rotate by rotating the rotating shaft 208, so that the positioning groove 2010 on the positioning plate 209 can be aligned with the welding part, and then the welding part is positioned to avoid the problem that visual welding is prone to deviation and the cost increase caused by opening the positioning hole.

[0027] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

Claims

1. A welding positioning device for a welded part, comprising a sheet metal (1), characterized in that: The outer wall of the sheet metal (1) is provided with a positioning mechanism (2); The positioning mechanism (2) comprises a mounting seat (202), the mounting seat (202) being clamped on the end of the sheet metal (1), a pin shaft (201) being fixedly mounted on the top of the mounting seat (202), a rotating plate (203) being rotatably sleeved on the outer wall of the pin shaft (201), an extension plate (204) being fixedly mounted on the outer wall of the rotating plate (203), a slider (206) being slidably mounted on the inner wall of the extension plate (204), and the slider (206) being slidably mounted on the inner wall of the extension plate (204). The inner wall of the slider (206) is threadedly connected with a screw rod (205), and the screw rod (205) passes through the inner wall of the extension plate (204) through a bearing. The outer wall of the slider (206) is fixedly installed with a U-shaped seat (207), and the inner wall of the U-shaped seat (207) is rotatably connected with a rotating shaft (208) through a bearing. A positioning plate (209) is fixedly installed at the bottom end of the rotating shaft (208), and a positioning groove (2010) is opened on the outer wall of the positioning plate (209).

2. A welding positioning device for welded parts according to claim 1, characterized in that: The mounting seat (202) comprises a U-shaped plate (2021), a metal elastic sheet (2022) being fixedly mounted on the top inner wall of the U-shaped plate (2021), a lower pressing plate (2023) being fixedly mounted on the bottom of the metal elastic sheet (2022), the lower pressing plate (2023) being pressed on the upper surface of the sheet metal (1), and the lower surface of the sheet metal (1) being in contact with the bottom inner wall of the U-shaped plate (2021).

3. A welding positioning device for welded parts according to claim 1, characterized in that: A magnet ring (4) is fixedly mounted on the top of the mounting seat (202), a friction ring (5) is fixedly sleeved on the outer wall of the magnet ring (4), the magnet ring (4) is adsorbed on the bottom of the rotating plate (203), and the upper surfaces of the magnet ring (4) and the friction ring (5) are flush.

4. A welding positioning device for welded parts according to claim 1, characterized in that: The outer wall fixing sleeve of the rotating shaft (208) is provided with a rotating ring (6), and the top of the U-shaped seat (207) is threadedly connected with a clamping bolt (7), and the bottom end of the clamping bolt (7) is pressed on the top of the rotating ring (6).

5. The welding positioning device for welded parts according to claim 1, characterized in that: The three positioning grooves (2010) are provided, and the inner diameters and shapes of the three positioning grooves (2010) are different.

6. A welding positioning device for welded parts according to claim 2, characterized in that: The bottom inner wall of the U-shaped plate (2021) and the bottom of the lower pressure plate (2023) are both fixedly mounted with a silicone pad (3), and the outer walls of the U-shaped plate (2021) and the lower pressure plate (2023) on one side facing the sheet metal (1) are both inclined curved surfaces.

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