Positioning device for automatic welding

Abstract

The utility model discloses a kind of variable position tool for automatic welding, it is related to welding tool technical field, and its technical key points include rotating positioning base;Rotary tray, the rotary tray is movably installed in the upper end inside of rotating positioning base, by setting rotary tray, it is convenient to accurately carry out the angle adjustment of automation, the rotary motor output shaft of rotary tray can be rotated by coupling in rotation, limit shaft stem can be rotated by limit shaft stem, rotating protruding block can be rotated by rotating protruding block, rotating protruding block can be rotated and inclined by movable panel, the inclination angle of movable panel can be detected angle by two wireless inclination sensors, the angle data information of wireless inclination sensor can be transmitted to control case, control case can control rotary motor rotation, to utilize the angle data of wireless inclination sensor, movable panel can be automatically rotated to the required accurate angle by rotary motor, more efficient and accurate when adjusting angle.

Description

Technical Field

[0001] This utility model relates to the field of welding tooling technology, specifically to a positioning tooling for automatic welding. Background Technology

[0002] Welding fixtures are industrial equipment used to assist in the welding process. They are mainly used to fix, position, and protect the workpieces to improve welding efficiency and stability. Welding fixtures can improve assembly accuracy, control deformation, and reduce manual intervention. They are especially suitable for complex workpieces and mass production scenarios, and can stabilize welding quality and reduce production costs.

[0003] The existing Chinese patent CN221210487U, disclosed on June 25, 2024, discloses a welding fixture, which includes a first clamping part, a second clamping part, and a supporting part. The first clamping part is provided with a first protrusion for fitting a first pipe fitting, and the second clamping part is provided with a second protrusion for fitting a second pipe fitting. The supporting part is located between the first clamping part and the second clamping part, so that the close ends of the first pipe fitting and the second pipe fitting are placed on the supporting part.

[0004] However, in actual use, the above-mentioned device clamps the workpiece for welding through the first clamping part and the second clamping part. However, during welding, the angle cannot be effectively changed, and there is no corresponding angle changing mechanism. When clamping for welding, the angle cannot be changed as needed, and repositioning is required. This is not very convenient when using the device for welding.

[0005] Therefore, we propose a novel positioning fixture for automatic welding to solve the above-mentioned technical problems. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides an automatic welding positioning fixture, which solves the problem that in actual use, the above-mentioned devices clamp the workpiece for welding through the first clamping part and the second clamping part, but cannot effectively change the angle during welding. The lack of a corresponding angle changing mechanism means that the angle cannot be changed as needed during clamping and welding, and repositioning is required, which is not very convenient when using the welding device.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a positioning fixture for automatic welding, comprising: Rotary positioning base; A rotating tray is movably mounted on the inner side of the upper end of the rotary positioning machine base; A pneumatic adsorption mechanism is installed and connected between a rotary positioning base and a rotating tray; A right-side positioning and clamping mechanism is fixedly connected to the upper right side of the rotary positioning machine base; A left telescopic clamping mechanism is fixedly connected to the upper left side of the rotary positioning base.

[0008] Preferably, the rotary positioning base includes an L-shaped base, a rotary motor is installed at the right corner of the L-shaped base by screws, a rotation limiting groove is provided in the middle of the right end of the L-shaped base, and the L-shaped base is movably connected to the rotating tray inside the rotation limiting groove by a coupling.

[0009] Preferably, the rotating tray includes a movable panel, a rotating protrusion is fixedly connected to the middle of the lower right side of the movable panel, a limiting shaft is fixedly connected to the inner side of the rotating protrusion, the rotating protrusion is movably connected to the L-shaped base through the limiting shaft, the limiting shaft is connected to the rotary motor through a coupling, an assembly cavity is opened on the inner side of the upper end of the movable panel, and two wireless tilt sensors are symmetrically fixed to the lower left side of the movable panel.

[0010] Preferably, the right-side positioning and clamping mechanism includes a welding fixing plate, which is fixedly connected to the movable panel. A metal screw is threadedly connected to the middle of the inner side of the metal screw. An abutment clamp is rotatably installed at the inner end of the metal screw. Positioning sleeves passing through the welding fixing plate are fixedly connected to the outer sides of both ends of the abutment clamp. A spring is fixedly connected between the abutment clamp and the welding fixing plate around the positioning sleeve.

[0011] Preferably, the left telescopic clamping mechanism includes a concave sleeve plate, a first electric telescopic cylinder is installed inside the concave sleeve plate by screws, a square hole panel is symmetrically fixed to the outer wall of the concave sleeve plate, a positioning shaft is sleeved in the middle of the inner side of the square hole panel, and a movable clamping plate is installed at the telescopic rod end of the first electric telescopic cylinder and the front end of the positioning shaft by screws.

[0012] Preferably, the movable clamp and the abutting clamp are in a parallel state.

[0013] Preferably, the pneumatic adsorption mechanism includes a accumulator housing, which is fixedly connected to an L-shaped base. An air pump is installed on the front end of the accumulator housing via screws on the L-shaped base. A corrugated telescopic tube is installed on the outer end of the air pump via screws. An input air pipe is installed on the other end of the corrugated telescopic tube via screws. An air hood is fixedly connected to the upper end of the input air pipe. An aligned perforated adsorption plate is fixedly connected to the inner side of the upper end of the air hood. The air hood is fixedly connected to the assembly cavity of the movable panel.

[0014] Preferably, the storage battery box, air pump, first electric telescopic cylinder, wireless tilt sensor and rotary motor are electrically connected to the control box via connecting wires.

[0015] Compared with the prior art, this utility model provides a positioning fixture for automatic welding, which has the following beneficial effects: 1. This utility model facilitates precise and automated angle adjustment by setting a rotating tray. The output shaft of the rotating motor of the rotating tray rotates, which in turn drives a limiting shaft via a coupling. The limiting shaft then drives a rotating protrusion, which in turn drives a movable panel to rotate and tilt. The tilt angle of the movable panel is detected by two wireless tilt sensors, and the angle data from these sensors is transmitted to a control box. The control box then controls the rotating motor to rotate, thus using the angle data from the wireless tilt sensors, the movable panel can automatically rotate to the required precise angle via the rotating motor, making angle adjustment more efficient and accurate.

[0016] 2. This utility model can drive rotation by setting a rotary positioning base. A rotary motor is installed at the right corner of the L-shaped base of the rotary positioning base by screws, which can be placed stably. The rotary motor can provide rotation driving force. The L-shaped base is movably connected to the rotating tray inside the rotation limiting groove through a coupling. The rotating tray can be positioned and rotated in the rotation limiting groove of the L-shaped base. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the pneumatic adsorption mechanism of this utility model; Figure 3 This is a schematic diagram of the right-side positioning and clamping mechanism of this utility model; Figure 4 This is a schematic diagram of the left telescopic clamping mechanism and rotating tray structure of this utility model; Figure 5 This is a schematic diagram of the rotary positioning base structure of this utility model.

[0018] In the picture: 1. First electric telescopic cylinder; 11. Movable clamping plate; 12. Square hole panel; 13. Positioning shaft; 14. Concave sleeve plate; 2. Metal screw; 21. Welded fixing plate; 22. Positioning sleeve; 23. Abutting clamping plate; 24. Spring; 3. Hollowed-out adsorption plate; 31. Corrugated telescopic tube; 32. Air inlet pipe; 33. Medium air hood; 4. Air pump; 41. Storage motor box; 5. Movable panel; 51. Rotating protrusion; 52. Limiting shaft; 53. Assembly cavity; 54. Wireless tilt sensor; 6. L-shaped base; 61. Rotary motor; 62. Rotation limiting groove. Detailed Implementation

[0019] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model. Example

[0020] This embodiment provides a technical solution: a positioning fixture for automatic welding, such as... Figures 1-5 As shown, it includes a rotary positioning base, a rotating tray, a pneumatic adsorption mechanism, a right-side positioning clamping mechanism, and a left-side telescopic clamping mechanism.

[0021] The rotary positioning base can be fixed and rotated. The rotary positioning base includes an L-shaped base 6, which can be installed in a designated position by screws. A rotary motor 61 is installed at the right corner of the L-shaped base 6 by screws, which can stably place the base. The rotary motor 61 can provide rotational driving force. A rotation limiting groove 62 is provided in the middle of the right end of the L-shaped base 6, which can limit the installation. The L-shaped base 6 is movably connected to the rotating tray inside the rotation limiting groove 62 by a coupling. The rotating tray can be positioned and rotated in the rotation limiting groove 62 of the L-shaped base 6.

[0022] The rotating pallet is movably mounted on the inner side of the upper end of the rotary positioning machine base, allowing it to rotate and tilt for machining. The rotating pallet includes a movable panel 5. A rotating protrusion 51 is welded to the lower right side of the movable panel 5. The movable panel 5, via the rotating protrusion 51, can be limited and fitted into the rotation limiting groove 62 of the L-shaped base 6. A limiting shaft 52 is fixedly connected to the inner side of the rotating protrusion 51, allowing the rotating protrusion 51 to be limited in rotation via the limiting shaft 52. The rotating protrusion 51 is movably connected to the L-shaped base 6 via the limiting shaft 52, allowing for positioning and rotation. The limiting shaft 52 is connected to a rotary motor 61 via a coupling. During rotation, the output shaft of the rotary motor 61 can drive the limiting shaft 52 to rotate via the coupling, thus limiting the rotation. The shaft 52 can drive the rotating protrusion 51 to rotate, and the rotating protrusion 51 can drive the movable panel 5 to rotate and tilt. The upper inner side of the movable panel 5 has an assembly cavity 53 for limited installation. Two wireless tilt sensors 54 are symmetrically fixed to the lower left side of the movable panel 5. The tilt angle of the movable panel 5 can be detected by the two wireless tilt sensors 54. The angle data of the wireless tilt sensors 54 can be transmitted to the control box. The control box can then control the rotary motor 61 to rotate. Thus, using the angle data of the wireless tilt sensors 54, the movable panel 5 can be automatically rotated to the required precise angle by the rotary motor 61, making the angle adjustment more efficient and precise. The accumulator box 41, air pump 4, first electric telescopic cylinder 1, wireless tilt sensor 54 and rotary motor 61 are electrically connected to the control box via connecting wires, and can be operated and controlled using the control box. Example

[0023] This embodiment is a further optimization based on Embodiment 1. The parts that are the same as those described above will not be repeated here. Figure 1 , Figure 2 and Figure 3 As shown, to further better realize this utility model, the following arrangement is specifically adopted: the pneumatic adsorption mechanism is installed and connected between the rotary positioning base and the rotating tray, and can be installed and placed accordingly. The pneumatic adsorption mechanism includes a storage battery box 41, which stores an effective storage battery inside, which can be charged and discharged. The storage battery box 41 is fixedly connected to the L-shaped base 6, and can be stably installed and placed. The front end of the storage battery box 41 is located on the L-shaped base 6 and is equipped with an air pump 4 by screws. The air pump 4 can generate negative pressure suction. The outer end of the air pump 4 is equipped with a corrugated telescopic tube 31 by screws. The negative pressure suction of the air pump 4 can be transmitted to the corrugated telescopic tube 31. The length of the corrugated telescopic tube 31 can be changed by rotating the movable panel 5 to avoid rotational obstruction. The other end of the corrugated telescopic tube 31 is equipped with an air inlet tube 32 by screws. The negative pressure suction of the corrugated telescopic tube 31 can be transmitted to the air inlet tube 32. The upper end of the air inlet tube 32 is connected to a medium air hood 33. The negative pressure suction of the air inlet tube 32 can be transmitted to the medium air hood 33. The upper inner side of the medium air hood 33 is fixed with an aligned perforated adsorption plate 3. The negative pressure suction inside the medium air hood 33 can adsorb external workpieces through the mesh of the perforated adsorption plate 3. The medium air hood 33 is fixed at the assembly cavity 53 of the movable panel 5 and can be installed and placed accordingly. Example

[0024] This embodiment is a further optimization based on Embodiment 1. The parts that are the same as those described above will not be repeated here. Figure 1 , Figure 3 and Figure 4As shown, to further better realize this utility model, the following configuration is specifically adopted: the right-side positioning and clamping mechanism is fixedly connected to the upper right side of the rotary positioning base, which can stably perform right-side abutment clamping. The right-side positioning and clamping mechanism includes a welded fixing plate 21, which is fixedly connected to the movable panel 5 and can be stably installed. The inner middle of the metal screw 2 is threaded with a metal screw 2, which can rotate and move within the inner thread of the welded fixing plate 21. The inner end of the metal screw 2 is rotatably mounted with an abutment clamp 23. When the metal screw 2 rotates and moves inward and outward, it can change the position of the abutment clamp 23 for clamping. The outer ends of both ends of the abutment clamp 23 are fixedly connected with positioning sleeve rods 22 that pass through the welded fixing plate 21. The abutment clamp 23 can be positioned and moved by the positioning sleeve rods 22. A spring 24 is fixedly connected between the abutment clamp 23 and the welded fixing plate 21 around the positioning sleeve rod 22. The spring 24 can provide elastic support, which facilitates the stable clamping of the abutment clamp 23.

[0025] The left telescopic clamping mechanism is fixed to the upper left side of the rotary positioning base, which facilitates left-side abutment and clamping. The left telescopic clamping mechanism includes a concave sleeve plate 14. The first electric telescopic cylinder 1 is installed inside the concave sleeve plate 14 by screws, so that the concave sleeve plate 14 can be stably installed. The outer wall of the concave sleeve plate 14 is symmetrically fixed with a square hole panel 12. Through the through hole of the square hole panel 12 on the outer wall of the concave sleeve plate 14, it can play a limiting role. The middle of the inner side of the square hole panel 12 is fitted with a positioning shaft 13. The positioning shaft 13 can be positioned and moved in the square hole panel 12. The telescopic rod end of the first electric telescopic cylinder 1 and the front end of the positioning shaft 13 are connected to a movable clamping plate 11 by screws. When the telescopic rod of the first electric telescopic cylinder 1 is telescopic, it can change the position of the movable clamping plate 11. The movable clamping plate 11 can be positioned and moved through the positioning shaft 13, so that the movable clamping plate 11 can be stably clamped. The movable clamp 11 and the abutting clamp 23 are in a parallel state, and can be clamped and fixed in parallel.

[0026] Working principle: When in use, first install the L-shaped base 6 in the designated position with screws, place the workpiece to be welded on the hollow adsorption plate 3 of the movable panel 5, start the air pump 4 through the control box, the air pump 4 generates negative pressure suction force which is transmitted to the hollow adsorption plate 3 through the corrugated telescopic tube 31, the input air pipe 32 and the air hood 33, adsorbing and fixing the bottom of the workpiece.

[0027] When clamping from the side, rotating the metal screw 2 drives the contact clamp 23 to move towards the workpiece. At the same time, the first electric telescopic cylinder 1 is activated by the control box, which drives the movable clamp 11 to move towards the workpiece. The workpiece is clamped from both sides by the parallel contact clamp 23 and the movable clamp 11, forming a double fixation to prevent the workpiece from shifting during welding.

[0028] When angle adjustment is required during welding, the target angle is set by the control box, and the rotary motor 61 is started. The output shaft of the rotary motor 61 drives the limit shaft 52, the rotating protrusion 51, and the movable panel 5 to rotate and tilt via a coupling. The wireless tilt sensor 54 on the movable panel 5 detects the tilt angle in real time and feeds the data back to the control box. When the angle reaches the set value, the control box controls the rotary motor 61 to stop rotating, completing the precise angle adjustment. Welding can continue without repositioning the workpiece.

[0029] The wiring diagrams for the accumulator box 41, air pump 4, first electric telescopic cylinder 1, wireless tilt sensor 54, and rotary motor 61 in this utility model are common knowledge in the field. Their working principles are known technologies, and the appropriate models are selected according to actual use. Therefore, the control methods and wiring layout will not be explained in detail.

[0030] The above are merely specific embodiments of this utility model, but the technical features of this utility model are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on this utility model to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of this utility model.

Claims

1. A positioning fixture for automatic welding, characterized in that, include: Rotary positioning base; A rotating tray is movably mounted on the inner side of the upper end of the rotary positioning machine base; A pneumatic adsorption mechanism is installed and connected between a rotary positioning base and a rotating tray; A right-side positioning and clamping mechanism is fixedly connected to the upper right side of the rotary positioning machine base; A left telescopic clamping mechanism is fixedly connected to the upper left side of the rotary positioning base.

2. The automatic welding positioning fixture according to claim 1, characterized in that: The rotary positioning base includes an L-shaped base (6), a rotary motor (61) is installed at the right corner of the L-shaped base (6) by screws, a rotation limiting groove (62) is opened in the middle of the right end of the L-shaped base (6), and the L-shaped base (6) is movably connected to the rotating tray inside the rotation limiting groove (62) by a coupling.

3. The automatic welding positioning fixture according to claim 1 or 2, characterized in that: The rotating tray includes a movable panel (5), a rotating protrusion (51) is fixedly connected to the middle of the lower right side of the movable panel (5), a limiting shaft (52) is fixedly connected to the inner side of the rotating protrusion (51), the rotating protrusion (51) is movably connected to the L-shaped base (6) through the limiting shaft (52), the limiting shaft (52) is connected to the rotary motor (61) through a coupling, an assembly cavity (53) is opened on the inner side of the upper end of the movable panel (5), and two wireless tilt sensors (54) are symmetrically fixed to the lower left side of the movable panel (5).

4. The automatic welding positioning fixture according to claim 1, characterized in that: The right-side positioning and clamping mechanism includes a welding fixing plate (21), which is fixedly connected to the movable panel (5). A metal screw (2) is threadedly connected to the middle of the inner side of the welding fixing plate (21). An abutment clamp (23) is rotatably installed at the inner end of the metal screw (2). A positioning sleeve rod (22) passing through the welding fixing plate (21) is fixedly connected to the outer sides of both ends of the abutment clamp (23). A spring (24) is fixedly connected between the abutment clamp (23) and the welding fixing plate (21) around the positioning sleeve rod (22).

5. The automatic welding positioning fixture according to claim 1, characterized in that: The left telescopic clamping mechanism includes a concave sleeve plate (14), inside which a first electric telescopic cylinder (1) is installed by screws. A square hole panel (12) is symmetrically fixed to the outer wall of the concave sleeve plate (14). A positioning shaft (13) is sleeved in the middle of the inner side of the square hole panel (12). The telescopic rod end of the first electric telescopic cylinder (1) and the front end of the positioning shaft (13) are connected by screws to a movable clamping plate (11).

6. The automatic welding positioning fixture according to claim 5, characterized in that: The movable clamp (11) and the abutting clamp (23) are in a parallel state.

7. The automatic welding positioning fixture according to claim 1, characterized in that: The pneumatic adsorption mechanism includes a accumulator housing (41), which is fixedly connected to an L-shaped base (6). An air pump (4) is installed on the front end of the accumulator housing (41) on the L-shaped base (6) by screws. A corrugated telescopic tube (31) is installed on the outer end of the air pump (4) by screws. An input air pipe (32) is installed on the other end of the corrugated telescopic tube (31) by screws. An air hood (33) is fixedly connected to the upper end of the input air pipe (32). An aligned hollow adsorption plate (3) is fixedly connected to the inner side of the upper end of the air hood (33). The air hood (33) is fixedly connected to the assembly cavity (53) of the movable panel (5).

8. The automatic welding positioning fixture according to claim 7, characterized in that: The storage battery box (41), air pump (4), first electric telescopic cylinder (1), wireless tilt sensor (54) and rotary motor (61) are electrically connected to the control box via connecting lines.

Images