CN-121989132-A - Integrated welding seam polishing device

Abstract

The application relates to the technical field of steel structure processing equipment, and particularly discloses an integrated welding seam polishing device which comprises a handheld part and a polishing part, wherein a bottom plate is fixed on the handheld part, the polishing part is arranged on the bottom plate, the polishing part comprises a polishing head, a polishing belt, an auxiliary mechanism and a driving assembly, the polishing head comprises a polishing roller, a polishing telescopic rod arranged longitudinally, the polishing roller is detachably arranged at the end part of the polishing telescopic rod, the auxiliary mechanism comprises an auxiliary roller, a supporting plate and an auxiliary telescopic rod, a sliding rod connected with the supporting plate in a sliding manner, a spring is sleeved on the sliding rod, the auxiliary roller is arranged at the end part of the sliding rod, the driving assembly comprises a motor, a driving wheel and a limiting wheel, and the polishing belt is sleeved on the polishing roller, the auxiliary roller and the driving wheel respectively and is limited by the limiting wheel. The purpose of this patent is solved current equipment and is lacked self-adaptation curved surface laminating ability, is difficult to compromise cambered surface, interior angle evenly polishes, leads to local overgrind or the problem of lack of grinding.

Inventors

• ZHOU XING
• WANG JIALONG
• WANG JING
• LIU PIXIAN
• WU JIAPENG
• CHEN HAO
• SUN XIAOXIONG
• LV YANBIN
• JIANG DEQIAN
• HE QI

Assignees

• 中铁建工集团有限公司
• 中铁建工集团西南有限公司
• 中铁建工集团贵州有限公司

Dates

Publication Date

20260508

Application Date

20260325

Claims (6)

1. 1. The integrated welding seam polishing device is characterized in that a bottom plate is fixed on the handheld portion, the polishing portion is mounted on the bottom plate, the polishing portion comprises a polishing head, polishing belts, an auxiliary mechanism and a driving assembly, the polishing head comprises polishing rollers and polishing telescopic rods which are arranged longitudinally, the polishing rollers are detachably mounted at the end parts of the polishing telescopic rods, the auxiliary mechanism comprises auxiliary rollers, a supporting plate and auxiliary telescopic rods, one ends of the auxiliary telescopic rods are transversely arranged and fixed with the bottom plate, the other end sections of the auxiliary telescopic rods are fixed with the supporting plate, a sliding rod is connected with the supporting plate in a sliding mode, springs are sleeved on the sliding rod, the auxiliary rollers are mounted at the end parts of the sliding rod, the driving assembly comprises a motor, a driving wheel and limiting wheels, the driving wheel is connected with an output shaft of the motor, the limiting wheels are symmetrically arranged at two sides of the driving wheel along the axis of the handheld portion, and the polishing belts are sleeved on the polishing rollers, the auxiliary rollers and the driving wheel respectively, contact with the limiting wheels and are limited by the limiting wheels.
2. 2. The integrated welding seam polishing device is characterized in that the polishing roller is rotatably connected to a support, the polishing roller is a variable-diameter roller and comprises two annular guide plates and a plurality of arc-shaped roller plates arranged between the two guide plates, the plurality of roller plates are spliced into an annular roller, an elastic rubber sleeve for tightening the roller plates is sleeved on the outer surface of the annular roller, the guide plates are provided with guide sliding grooves, sliding blocks embedded in the guide sliding grooves are arranged at the end parts of the roller plates, an inner hole of the annular roller comprises a mounting section and a variable-diameter section, the mounting section is a cylindrical surface with a constant inner diameter, the variable-diameter section is a circular table surface with a gradually reduced inner diameter, the mounting section is clamped with a circular cylinder shaft with an opening, the circular cylinder shaft is rotatably connected with the support and is outwards provided with a circular table block attached to the cambered surface of the variable-diameter section, one surface of the circular table block close to the mounting section is provided with an adjusting screw, the adjusting screw extends to the outside through the end surface of the circular cylinder shaft, and the adjusting screw is in threaded connection with the cylinder.
3. 3. The integrated welding seam polishing device is characterized in that the support is hinged to the support plate, the support can be turned over along a vertical plane, the support plate is connected with the end of a polishing telescopic rod, a micro motor is arranged at one end, far away from the adjusting screw, of the support plate, the inner wall of a cylinder shaft, close to the micro motor, of the support plate is polygonal, when the support rotates from the horizontal direction to the vertical direction, an output shaft of the micro motor is in spline connection with the inner wall of the cylinder shaft, and the polishing part further comprises a grinding wheel belt which can be sleeved on the side wall of the polishing roller.
4. 4. An integrated weld grinding device as defined in claim 2, wherein 4-12 wheel plates are provided.
5. 5. The integrated seam polishing device of claim 1, wherein a protective baffle is arranged between the driving wheel and the handheld part and is arranged along the normal direction of the bottom plate.
6. 6. The integrated seam polishing device of claim 1, wherein a second handheld portion is disposed in the middle of the base plate, and the second handheld portion is disposed along a normal direction of the base plate.

Description

Integrated welding seam polishing device Technical Field The invention relates to the technical field of steel structure processing equipment, in particular to an integrated welding seam polishing device. Background Along with the evolution of the design concept of the high-speed rail station houses, the steel structure is widely applied due to the excellent mechanical property and modeling expressive force. Whether the glass curtain wall steel structure keels are arranged for improving the permeability feeling or the bearing trusses of the large-span platform canopy, a large number of sections such as cylinders, square steel, I-steel and the like are adopted to form an integral structure through welding connection. However, a large number of arc welds, fillet welds, and T-joint fillet welds must be produced after the welded connection. The quality of the weld treatment at these locations is directly related to the structural corrosion durability and architectural appearance effects. From the perspective of corrosion resistance, the internal corner areas of the angle steel and the I-steel are dead corners which are difficult to cover in the coating spraying process. The sharp weld edges can cause the liquid paint to shrink to both sides due to surface tension and not adhere effectively, resulting in a severe lack of coating thickness. Meanwhile, moisture and dust are easy to accumulate in the reentrant corner area, if pores, undercut or splashes exist on the surface of the welding line, a crevice corrosion environment can be further formed, and the long-term service life of the steel structure is seriously threatened. Therefore, the welding slag and splashes must be thoroughly removed by polishing, and the edges and corners of the welding seam are processed into a smooth transition form, so as to ensure that the paint can flow uniformly and adhere well, or provide a flat base material for the subsequent heavy anti-corrosion processes such as rubber lining, plastic lining and the like. From the aspect of building aesthetics, a large number of steel structure reentrant corner welds exposed indoors directly form a visual interface, and rough scale pattern welds are contrary to the exquisite modern building style of a high-speed rail station house, so that the overall attractiveness is seriously affected. However, the angle grinder commonly adopted in the current construction site is matched with the polishing mode of the louver, and is mainly suitable for planar welding line operation, and effective fitting of curved surfaces such as a cylinder, a cambered surface and the like is difficult to realize. The Chinese patent with the publication number of CN116160314A proposes a beautiful polishing device for forming a welding line, the upward tilting angle of a polishing head is adjusted through a V-shaped belt and a supporting frame, although the angle adjustment in a certain range can be realized, the deep polishing of complex parts such as a diagonal welding line, the inner angle of a T-shaped joint and the like can not be realized, and the polishing device is fixedly installed and is mainly used for polishing in factories and is not suitable for construction sites. In actual construction, in order to cope with different section profiles and weld joint forms, on-site constructors often need to carry a plurality of special handheld polishing devices to frequently switch, so that not only is the complexity of on-site tool management increased and the operation burden increased, but also even polishing is difficult to realize at the root, the inner angle and the reducing transition zone of the weld joint due to the lack of self-adaptive curved surface laminating capability of the devices, so that the defects of base metal damage or undergrinding are caused by local overgrinding, and the consistency of the adhesive force and the overall appearance of the anti-corrosion coating is finally influenced. Disclosure of Invention Aiming at the defects of the prior art, the invention provides an integrated welding seam polishing device, which solves the problems that the existing equipment lacks self-adaptive curved surface laminating capability, is difficult to uniformly polish an arc surface and an inner angle, and causes local overgrinding or undergrinding. The technical scheme includes that the integrated welding seam polishing device comprises a handheld portion and a polishing portion, a bottom plate is fixed on the handheld portion, the polishing portion is installed on the bottom plate, the polishing portion comprises a polishing head, polishing belts, an auxiliary mechanism and a driving assembly, the polishing head comprises polishing rollers and polishing telescopic rods longitudinally arranged, the polishing rollers are detachably installed at the end parts of the polishing telescopic rods, the auxiliary mechanism comprises the auxiliary rollers, a supporting plate and the auxiliary telescopic rods, one end of