CN103157942A

CN103157942A - Welding jig of elevator handrail

Info

Publication number: CN103157942A
Application number: CN 201110419542
Authority: CN
Inventors: 孟广辉
Original assignee: TIANJIN LIFT ELEVATOR PARTS CO Ltd
Current assignee: TIANJIN LIFT ELEVATOR PARTS CO Ltd
Priority date: 2011-12-15
Filing date: 2011-12-15
Publication date: 2013-06-19

Abstract

The invention relates to a welding jig of an elevator handrail. A V-shaped steel angle I and a V-shaped steel angle II are fixedly arranged at two ends of a jig body, a rubber rolling bearing I and a rubber rolling bearing II are respectively welded at two ends of the V-shaped steel angle I, a rubber rolling bearing III and a rubber rolling bearing IV are respectively welded at two ends of the V-shaped steel angle II, and a ground clamp is arranged at one end of a workpiece, and is connected with a ground wire. The ground clamp comprises an inner sleeve, an outer sleeve and an electric brush, the electric brush is fixed on the outer sleeve, and the outer sleeve is communicated with the inner sleeve to conduct electricity through the electric brush. In a handrail welding process, the welding jig of the elevator handrail prevents a return circuit from being burnt, effectively, scratches cannot be generated on the handrail and the workbench, and the ground wire and the workpiece are not wound every time the handrail rotates. The welding jig of the elevator handrail is reasonable in structure and simple in manufacturing, and avoids the secondary processing of polishing again of subsequent workers, and therefore producing efficiency is effectively improved.

Description

The escalator handrail weld jig

Technical field

The invention belongs to the lift facility field, relate to a kind of escalator handrail weld jig, be particularly useful for the escalator handrail welding.

Background technology

at present, factory is in the handrail welding now, especially when welding handrail two ends stifled, the workman can be placed directly in handrail on workbench at every turn, ground clamp on workbench, when blocking up due to the welding handrail, workpiece all needs rotation, but when rotating, workpiece all can directly touch with workbench at every turn, and produce friction and the scuffing surface of handrail, yet the loose contact of workpiece and workbench is easy to also cause that the loop causes surface of handrail burn, cause the lower continuous workman work of polishing again, directly be clipped in ground clamp on handrail tube, ground wire has had good contacting with handrail although it is so, effectively avoid the loop and the surface of handrail of burning, but ground clamp commonly used, when being clipped on workpiece and workpiece fix, weld each rotation of handrail handrail when stifled for this reason, ground clamp all will will again unclamp thereupon and again press from both sides, avoid ground wire and workpiece to be wound around, often go up in work and slowed down greatly operating efficiency.

Summary of the invention

Problem to be solved by this invention is, overcome the deficiencies in the prior art, a kind of escalator handrail weld jig is provided, avoids loop burn when handrail welds, effectively avoided handrail directly to contact with workbench and the cut that produces, when handrail rotates at every turn, ground wire and workpiece are not wound around, rational in infrastructure, make simply, effectively avoided the follow-up workman secondary operations of polishing again, thereby effectively enhance productivity, reduce manpower.

The present invention solves its technical problem and takes following technical scheme to realize:

According to a kind of escalator handrail weld jig provided by the invention, comprise clamp, V-type angle steel and ground clamp, the two ends of described clamp are fixed with V-type angle steel one, V-type angle steel two, weld respectively rubber rolling bearing one, rubber rolling bearing two, rubber rolling bearing three, rubber rolling bearing four at the two ends of V-type angle steel one, V-type angle steel two, ground clamp is added in an end of workpiece, and ground clamp connects ground wire.

It is to take following technical scheme further to realize that the present invention solves its technical problem:

Aforesaid ground clamp comprises inner sleeve, overcoat and brush, and brush is fixing on the coat, is communicated with conduction by brush between overcoat and inner sleeve.

The present invention compared with prior art has significant advantage and beneficial effect:

because the present invention adopts rubber rolling bearing in the welding of the two ends of V-type angle steel, the scuffing that reduces to weld each rotation of handrail handrail when stifled and the friction between the V-type angle steel and produce, when the rotation of welding handrail, the inner sleeve of ground clamp and workpiece (handrail tube) step up, inner sleeve is rotated with handrail, and guarantee that by brush overcoat does not rotate with inner sleeve between overcoat and inner sleeve, and guarantee good conduction state, avoid loop burn surface of the work, thereby when guaranteeing workpiece rotating not can with earth wire winding around, simple in structure, easy to use, effectively enhance productivity, guarantee the production and processing part quality.

The specific embodiment of the present invention is provided in detail by following examples and accompanying drawing thereof.

Description of drawings

Fig. 1 is main TV structure schematic diagram of the present invention;

Fig. 2 is plan structure schematic diagram of the present invention;

Fig. 3 is left TV structure schematic diagram of the present invention;

Fig. 4 is the local structure for amplifying schematic diagram of ground clamp of the present invention.

Wherein: 1 support 21, V-type angle steel 1, V-type angle steel 2 31, rubber rolling bearing 1, rubber rolling bearing 2 33, rubber rolling bearing 3 34, rubber rolling bearing 44, ground clamp 41, inner sleeve 42, overcoat 43, brush 5, workpiece 6, ground wire.

The specific embodiment

Below in conjunction with accompanying drawing and preferred embodiment, to according to the specific embodiment provided by the invention, structure, feature and effect thereof, be described in detail as follows.

A kind of escalator handrail weld jig as shown in Figure 1, comprise support, V-type angle steel and ground clamp, the two ends of described support 1 are fixed with V-type angle steel 1, V-type angle steel 2 22, weld respectively rubber rolling bearing 1, rubber rolling bearing 2 32, rubber rolling bearing 3 33, rubber rolling bearing 4 34 at the two ends of V-type angle steel one, V-type angle steel two, ground clamp 4 is added in an end of workpiece 5, and ground clamp connects ground wire 6.

Ground clamp comprises inner sleeve 41, overcoat 42 and brush 43, and brush is fixing on the coat, is communicated with conduction by brush between overcoat and inner sleeve.

Using method: with the horizontal location of two V-type angle steel, and in the welding of the two ends of V-type angle steel the rubber rolling bearing, the scuffing that reduces to weld each rotation of handrail handrail when stifled and the friction between the V-type angle steel and produce, when the rotation of welding handrail, the inner sleeve of ground clamp and workpiece 5(handrail tube) step up, inner sleeve guarantees that by brush overcoat does not rotate with inner sleeve with the handrail rotation between overcoat and inner sleeve, and guarantee good conduction state, avoid loop burn surface of the work, thus when guaranteeing workpiece rotating not can with earth wire winding around.

Claims

1. an escalator handrail weld jig, comprise clamp, V-type angle steel and ground clamp, it is characterized in that: described

The two ends of clamp be fixed with V-type angle steel one, V-type angle steel two, at V-type angle steel one, V-type angle steel two

Two ends weld respectively rubber rolling bearing one, rubber rolling bearing two, rubber rolling bearing three, rubber

Rubber-surfaced roll dynamic bearing four, ground clamp are added in an end of workpiece, and ground clamp connects ground wire.

2. escalator handrail weld jig according to claim 1, is characterized in that: described ground wire clip pack

Draw together inner sleeve, overcoat and brush, brush is fixing on the coat, is communicated with by brush between overcoat and inner sleeve

Conduction.