CN-122007763-A - Automatic welding equipment is used in iron accessory production

Abstract

The invention belongs to the technical field of iron accessory welding, and relates to automatic welding equipment for iron accessory production. The device comprises a working platform, a detection mechanism, a clamping mechanism and a welding mechanism, wherein a plurality of groups of positioning units for initially placing the iron accessories are arranged on the working platform, the detection mechanism is arranged on the working platform along a horizontal central axis and acquires position characteristic values of the iron accessories in the depth direction of the section, the clamping mechanism comprises connecting rod groups symmetrically arranged on two sides of the detection mechanism, and the welding mechanism is arranged above the working platform. Solves the technical pain points of low mold conversion efficiency, poor clamping precision, high process adaptation risk and the like existing in the prior art.

Inventors

• YANG LI
• XU BISHENG

Assignees

• 富顺县电力金具有限公司

Dates

Publication Date

20260512

Application Date

20260324

Claims (10)

1. 1. Automatic welding equipment is used in iron annex production for carry out automatic positioning and welding to the iron annex of different cross-section shapes, its characterized in that includes: The working platform is provided with a plurality of groups of positioning units for initially placing the iron accessories; the detection mechanism is arranged on the working platform along the horizontal central axis and acquires a position characteristic value of the iron accessory in the depth direction of the section; The clamping mechanism comprises connecting rod groups symmetrically arranged at two sides of the detection mechanism, and the connecting rod groups are provided with adjustable opening angles and are used for enveloping and clamping the iron accessory from two sides; the welding mechanism is arranged above the working platform; the control system is respectively and electrically connected with the detection mechanism, the clamping mechanism and the welding mechanism; The control system is used for judging the cross-sectional shape of the iron accessory according to the position characteristic value and controlling the opening angle of the connecting rod group to be matched with the cross-sectional shape according to the judging result.
2. 2. The automatic welding apparatus for iron accessory production of claim 1, wherein the linkage comprises: a first link group and a second link group; the first connecting rod group and the second connecting rod group are oppositely arranged and are respectively positioned at two sides of the positioning unit; each of the linkage groups includes: A first clamping link and a second clamping link disposed crosswise to the first clamping link; A cross shaft through which the first clamp link and the second clamp link are hinged; And the driving unit is in transmission connection with the first clamping connecting rod and the second clamping connecting rod and is used for driving the first clamping connecting rod and the second clamping connecting rod to rotate around the crossed shaft so as to adjust an included angle between the first clamping connecting rod and the second clamping connecting rod.
3. 3. The automatic welding apparatus for iron accessory production of claim 2, further comprising: The length measurement module is used for acquiring a length characteristic value of the iron accessory in a horizontal plane and in a direction perpendicular to the motion track of the detection mechanism; The control system takes the position characteristic value as a control parameter for judging the cross section shape, and takes the length characteristic value as a control parameter for adjusting the center distance of the connecting rod group.
4. 4. The automatic welding apparatus for iron accessory production of claim 3, further comprising: The first connecting rod group and the second connecting rod group are respectively arranged on the horizontal sliding component; The control system drives the horizontal sliding assembly according to the length characteristic value, so that the first connecting rod group and the second connecting rod group are close to or far away from each other relative to the central axis of the detection mechanism, and the center distance between the two groups of connecting rod groups is adjusted.
5. 5. The automatic welding apparatus for iron accessory production according to claim 4, wherein, The control system respectively invokes the target displacement of the horizontal sliding component and the target opening angle of the connecting rod group according to the length characteristic value and the position characteristic value; The control system instructs the horizontal sliding assembly and the driving unit to act, so that the first connecting rod group and the second connecting rod group envelope-clamp the iron accessory according to the target opening angle under the center distance determined by the target displacement.
6. 6. The automatic welding equipment for iron accessory production according to claim 5, wherein the tail ends of the first clamping connecting rod and the second clamping connecting rod of each connecting rod group are respectively provided with a pressure head for abutting against the side wall of the iron accessory, and a pressure detection unit is arranged at the pressure heads; The control system acquires a pressure characteristic curve which changes along with clamping displacement in the clamping process of the connecting rod group, and extracts an actually measured mechanical characteristic value of the iron accessory; Matching and matching the actually measured mechanical characteristic value with a process reference value preset by the welding mechanism by the control system; If the deviation between the actually measured mechanical characteristic value and the process reference value is within a preset threshold range, the welding mechanism is instructed to execute welding action; and if the deviation exceeds the preset threshold range, the welding mechanism is instructed to stop welding and an abnormal material alarm signal is sent.
7. 7. The automatic welding apparatus for iron accessory production according to claim 3, wherein, The positioning unit comprises a plurality of groups of positioning bulges arranged on the working platform; The positioning bulges divide at least three groups of preset positioning areas on the working platform, and each preset positioning area is matched with the iron accessory with a preset cross-sectional shape; the length measurement module comprises non-contact sensing units which are respectively integrated with the edges of the preset positioning areas, and the non-contact sensing units are used for triggering and acquiring the corresponding length characteristic values when the iron accessory is placed between the corresponding positioning protrusions.
8. 8. The automatic welding apparatus for iron accessory production of claim 7, wherein the detection mechanism comprises: A telescopic drive source arranged along the horizontal central axis; The detection rod is connected to the output end of the telescopic driving source and used for extending to the central part of the iron accessory under the driving of the telescopic driving source; the displacement sensor is arranged in association with the detection rod and is used for monitoring the telescopic distance of the detection rod in real time to acquire the position characteristic value; And the elastic contact is arranged at the tail end of the detection rod.
9. 9. The automatic welding apparatus for iron accessory production of claim 8, comprising: The gesture detection unit is arranged on the detection mechanism or the connecting rod group and is used for acquiring an inclination angle value of the side wall of the iron accessory relative to the horizontal central axis; The pressure head is arranged at the tail ends of the first clamping connecting rod and the second clamping connecting rod through the gesture adjusting executing mechanism; And the control system instructs the gesture adjusting executing mechanism to act according to the inclination angle value, so that the working plane of the pressure head is adjusted to be in a state of being dynamically parallel to the side wall of the iron accessory before contacting the iron accessory.
10. 10. The automatic welding apparatus for iron accessory production according to claim 9, wherein, The gesture adjusting executing mechanism comprises a first micro-motion push rod and a second micro-motion push rod which are symmetrically arranged on the back of the pressure head; And the control system independently controls the expansion and contraction amounts of the first micro-motion push rod and the second micro-motion push rod according to the inclination angle value so as to drive the pressure head to rotate around a pivot connected with the connecting rod until the dynamic parallel state is reached.

Description

Automatic welding equipment is used in iron accessory production Technical Field The invention belongs to the technical field of iron accessory welding, and particularly relates to automatic welding equipment for iron accessory production. Background Iron accessories (e.g., power fittings, railway fasteners, building connectors, etc.) are of a wide variety of cross-sectional shapes, including generally U-shaped, V-shaped, W-shaped and other irregular shaped cross-sections. On an automatic production line, efficient and high-precision positioning and clamping of the special-shaped iron accessories are the precondition for realizing automatic welding. Currently, existing iron accessory welding generally has the following technical drawbacks: The traditional welding fixture is designed by one object, and special fixture modules are required to be frequently replaced aiming at iron accessories with different cross-sectional shapes or sizes. This not only results in long production assistance times and inefficiency, but also greatly increases the cost of off-commission handling and inventory management of the jigs. The existing automatic clamp mostly adopts a simple limit switch or a mechanical stop block, and is difficult to sense depth and automatically adapt to a section with a complex shape. Particularly when the iron accessory is manually placed, small position deviation or dimensional tolerance of the iron accessory often causes deviation of clamping force center, and influences welding quality. Disclosure of Invention In order to solve the problems in the prior art, the invention provides automatic welding equipment for producing iron accessories. In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: The utility model provides an automatic weld equipment is used in iron annex production for carry out automatic positioning and welding to the iron annex of different cross-section shapes, include: The working platform is provided with a plurality of groups of positioning units for initially placing the iron accessories; the detection mechanism is arranged on the working platform along the horizontal central axis and acquires a position characteristic value of the iron accessory in the depth direction of the section; The clamping mechanism comprises connecting rod groups symmetrically arranged at two sides of the detection mechanism, and the connecting rod groups are provided with adjustable opening angles and are used for enveloping and clamping the iron accessory from two sides; the welding mechanism is arranged above the working platform; the control system is respectively and electrically connected with the detection mechanism, the clamping mechanism and the welding mechanism; The control system is used for judging the cross-sectional shape of the iron accessory according to the position characteristic value and controlling the opening angle of the connecting rod group to be matched with the cross-sectional shape according to the judging result. Preferably, the linkage includes: a first link group and a second link group; the first connecting rod group and the second connecting rod group are oppositely arranged and are respectively positioned at two sides of the positioning unit; each of the linkage groups includes: A first clamping link and a second clamping link disposed crosswise to the first clamping link; A cross shaft through which the first clamp link and the second clamp link are hinged; And the driving unit is in transmission connection with the first clamping connecting rod and the second clamping connecting rod and is used for driving the first clamping connecting rod and the second clamping connecting rod to rotate around the crossed shaft so as to adjust an included angle between the first clamping connecting rod and the second clamping connecting rod. Preferably, the method further comprises: The length measurement module is used for acquiring a length characteristic value of the iron accessory in a horizontal plane and in a direction perpendicular to the motion track of the detection mechanism; The control system takes the position characteristic value as a control parameter for judging the cross section shape, and takes the length characteristic value as a control parameter for adjusting the center distance of the connecting rod group. Preferably, the method further comprises: The first connecting rod group and the second connecting rod group are respectively arranged on the horizontal sliding component; The control system drives the horizontal sliding assembly according to the length characteristic value, so that the first connecting rod group and the second connecting rod group are close to or far away from each other relative to the central axis of the detection mechanism, and the center distance between the two groups of connecting rod groups is adjusted. Preferably, the control system respectively invokes the target displacement of the hor