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CN-122007215-A - Welding seam detection bending machine

CN122007215ACN 122007215 ACN122007215 ACN 122007215ACN-122007215-A

Abstract

The invention relates to a welding seam detection bending machine, which comprises a bending seat, side angle seats arranged on the left side and the right side of the bending seat, a servo motor and a double-force cylinder which are fixedly arranged on the two sides of the surface of the bending seat, a bending groove arranged at the bottom of the front end of the bending seat, and a locking base seat arranged on the side of the front end of the bending seat, wherein the output end of the servo motor is fixedly provided with a reduction gearbox which is fixedly connected with the front end of the bending seat, the output end of the reduction gearbox extends to the rear side of the bending seat and is connected with a crank assembly, and the rear end of a bending shaft extends to the rear end of the bending seat and is connected with the output end of the crank assembly; according to the invention, the notch edge is designed into an arc chamfer structure while the bending notch is enlarged, so that the effective inlet size is enlarged, a welding template with thermal deformation or warping can smoothly slide in, and meanwhile, when a sample is bent, the notch edge is in arc contact with the plate body, so that stress concentration is prevented, damage to the template is avoided, and the accuracy of a detection result is ensured.

Inventors

  • ZHANG CHENGTING

Assignees

  • 马鞍山北光冶金机械有限责任公司

Dates

Publication Date
20260512
Application Date
20260325

Claims (9)

  1. 1. The welding seam detection bending machine comprises a bending seat (1), side angle seats (2) arranged on the left side and the right side of the bending seat (1), a servo motor (3) fixedly arranged on the two sides of the surface of the bending seat (1) and a force doubling cylinder (4), and is characterized by further comprising a bending groove (5) arranged at the bottom of the front end of the bending seat (1), a locking base table (6) arranged on the side of the front end of the bending seat (1), a reduction gearbox (7) fixedly arranged at the output end of the servo motor (3), the reduction gearbox (7) fixedly connected with the front end of the bending seat (1), a crank assembly connected with the output end of the reduction gearbox (7) and extending to the rear side of the bending seat (1), a bending shaft (8) arranged at the rear end of the bending groove (5) and connected with the output end of the crank assembly, the crank assembly is used for converting the rotation motion output by the servo motor (3) through the reduction gearbox (7) into reciprocating swing motion and synchronously driving the bending groove (5) to wind the output end of the reduction gearbox (8) to carry out reciprocating swing motion, the reciprocating type bending groove (5) is provided with a groove opening (4) which is connected with the upper end of the bending seat (1) of a circular arc-shaped groove seat, the upper end is symmetrically arranged at the two sides of the bending groove is provided with a groove opening of the bending seat (1) and the upper end is provided with a bevel groove seat (4, the output end of the force doubling cylinder (4) is fixedly provided with a connecting plate (9), the lower end of the connecting plate (9) is fixedly connected with an upper pressing block (10), the upper end of the locking base table (6) is provided with a lower pressing block (11) at a position corresponding to the upper pressing block (10), and the force doubling cylinder (4) is used for driving the upper pressing block (10) to move along the vertical direction and is matched with the lower pressing block (11) to clamp and fix one side of the sample plate arranged at the notch.
  2. 2. The welding seam detection bending machine according to claim 1, wherein the crank assembly comprises an eccentric wheel (701) fixedly arranged at the output end of the reduction gearbox (7), an outer end cover (702) fixedly arranged at the outer side of the eccentric wheel (701), and a crank rod (703) sleeved at the outer side of the outer end cover (702), one end of the crank rod (703) is rotatably connected with the outer end cover (702) through a bearing ring, and a swing rod (704) is rotatably arranged at the other end of the crank rod (703).
  3. 3. The welding seam detection bending machine according to claim 2, wherein the tail end of the swinging rod (704) is fixedly connected with the bending shaft (8), and the swinging rod (704) and the crank rod (703) are driven to do reciprocating swinging through the rotation of the eccentric wheel (701), so that the bending groove (5) is driven to do reciprocating swinging with a settable angle around the axis of the bending shaft (8).
  4. 4. The welding seam detection bending machine according to claim 1, wherein the self-adaptive adjusting component comprises mounting grooves (501) formed in the upper end and the lower end of the inner wall of the bending groove (5), a floating plate (502) which is embedded in the mounting grooves (501) in a sliding mode, a compression spring (503) arranged between the back of the floating plate (502) and the bottom of the mounting grooves (501), and a roller body (504) which is rotatably arranged on the surface of the floating plate (502), wherein the compression spring (503) is used for providing elastic pretightening force to drive the floating plate (502) to float along the vertical direction, and autorotation occurs along with sample plate displacement in the process of bending the roller body (504) to convert sliding friction into rolling friction.
  5. 5. The welding seam detection bending machine according to claim 4, wherein guide sliding blocks are arranged on two side surfaces of the floating plate (502), and guide sliding rails matched with the guide sliding blocks are correspondingly arranged on the inner wall of the mounting groove (501) and used for limiting the floating plate (502) to linearly slide only along the direction perpendicular to the depth of the notch.
  6. 6. The welding seam detection bending machine according to claim 1, wherein the contact surfaces of the upper pressing block (10) and the lower pressing block (11) are provided with anti-skid grooves, and the surfaces of the upper pressing block (10) and the lower pressing block (11) are provided with bolt mounting holes.
  7. 7. The welding seam detection bending machine according to claim 1, wherein the locking base table (6) is detachably mounted on the bending seat (1) through bolts, a horizontal supporting plate (61) is fixedly mounted at the right end of the locking base table (6), the upper end face of the supporting plate (61) and the upper end face of the lower pressing block (11) are located on the same horizontal plane, and the supporting plate (61) is used for providing horizontal support in a sample plate feeding stage.
  8. 8. The welding seam detection bending machine according to claim 2, wherein the bending shaft (8) is rotationally connected with the bending seat (1) through a bearing ring, a bending induction seat (12) is fixedly arranged on the side of the bending shaft (8) on the rear end face of the bending seat (1), a photoelectric switch is arranged on the bending induction seat (12), an induction light shielding plate (13) which synchronously swings along with the bending induction seat is fixedly arranged on the outer wall of the swinging rod (704), the edge contour of the induction light shielding plate (13) is matched with the optical path of the photoelectric switch, and when the swinging rod (704) drives the bending groove (5) to swing to a preset limit angle, the induction light shielding plate (13) shields the photoelectric switch and feeds back a real-time bending angle signal to the control system.
  9. 9. The welding seam detection bending machine according to claim 1, wherein a positioning groove is formed in the front end face of the bending shaft (8), a positioning block matched with the positioning groove in shape is arranged at the rear end of the bending groove (5), and the bending groove (5) is detachably connected with the front end of the bending shaft (8) through a high-strength bolt.

Description

Welding seam detection bending machine Technical Field The invention relates to the technical field of weld joint detection, in particular to a weld joint detection bending machine. Background In the steel manufacturing industry, various existing strip steel production lines with crescent shears are adopted, particularly in the strip steel production lines (such as oriented silicon steel is an important soft magnetic material, and is mainly used for transformer iron core materials, and is widely applied in the electric industry), in order to ensure continuous production, a former strip steel and a latter strip steel are required to be connected in a welding mode, after welding is finished, the welded strip steel passes through the whole production line, the strip steel is stored and released through a loop roller set, continuous operation and transmission of an intermediate process section are ensured, the path is long, once the strip steel is broken due to the welding quality problem, serious economic loss is caused, a section of sample is cut off at two sides of a welding line through crescent shear equipment, and repeated bending tests are carried out through manpower or a machine to verify whether the strength performance of the welding line meets the standard; The existing detection bending machine is matched with the cylinder pressing block to fix one side of the sample plate, the other side of the sample plate is bent, but the existing notch is mostly provided with a straight edge narrow opening, the welded sample plate is prone to larger thermal deformation or warping, the deformed sample plate is extremely easy to clamp due to the narrow straight edge inlet and cannot smoothly enter the detection position, meanwhile, the straight edge notch is small in contact area with the sample plate at the moment of bending initiation, a very large stress concentration point is formed, the sample plate is easy to break, the strength performance of a sample welding line cannot be truly measured, the size of the notch is simply enlarged, a larger gap exists between the sample plate and the groove wall easily, shaking and rigid collision can be generated in the groove by the sample plate in the repeated bending process, the sample plate surface is damaged, and impact noise can be generated. Disclosure of Invention Aiming at the defects of the prior art, the invention provides a welding seam detection bending machine, which can automatically eliminate gaps while increasing the size of a notch, realize a flexible jointing bending groove structure, and solve the problems that the suitability of the notch is poor, the right-angle edge is easy to damage a sample plate and the detection result is influenced in the detection process of the sample plate by the existing detection bending machine. In order to achieve the purpose, the welding seam detection bending machine comprises a bending seat, side angle seats arranged on the left side and the right side of the bending seat, a servo motor and a force doubling cylinder which are fixedly arranged on the two sides of the surface of the bending seat, a bending groove arranged at the bottom of the front end of the bending seat, a locking base seat arranged on the side of the front end of the bending seat, a reduction gearbox fixedly arranged at the output end of the servo motor, the reduction gearbox fixedly connected with the front end of the bending seat, a crank assembly connected with the output end of the reduction gearbox, a bending shaft arranged at the rear end of the bending groove, a rotary motion of the servo motor output by the reduction gearbox is converted into a reciprocating swing motion, the bending groove is synchronously driven to swing around the axis of the bending shaft, a notch for accommodating a sample plate is formed in the surface of the bending groove, the upper end and the lower end of the notch are symmetrically arranged, the fixed end of the force doubling cylinder is fixedly connected with the rear side of the bending seat through a support, the crank assembly is connected with the upper end of the bending seat in a connecting plate in a hanging mode, the upper end of the pressing block is fixedly connected with the upper end of the pressing block in a corresponding to the upper end of the pressing block, and the upper end of the pressing block is fixedly arranged in a position corresponding to the upper end of the pressing block is fixedly arranged at the upper end of the pressing block. It should be noted that the sample cut by the crescent shearing device is crescent, so that the sample is horizontally placed in the bending groove, one side of the sample is clamped and fixed, and the reciprocating motion of the bending groove is convenient to drive the other side of the sample plate to form reciprocating bending. Further, the crank assembly comprises an eccentric wheel fixedly arranged at the output end of the reduction gearbox, an outer en