CN201552413U

CN201552413U - Spot welding and pressing mechanism for panel and web plate of box-type girder beam

Info

Publication number: CN201552413U
Application number: CN 200920221807
Authority: CN
Inventors: 史厚省; 李广周
Original assignee: Tianjin Zhenhan Mechanical Equipment Co Ltd
Current assignee: Tianjin Zhenhan Mechanical Equipment Co Ltd
Priority date: 2009-10-30
Filing date: 2009-10-30
Publication date: 2010-08-18
Anticipated expiration: 2019-10-30

Abstract

The utility model relates to a spot welding and pressing mechanism for a panel and a web plate of a box-type girder beam, the mechanism comprises a left pressing device and a right pressing device which are used for pressing the panel and the web plate and symmetrically arranged, and the left pressing device and the right pressing device comprise a motor reducer, a small gear, a big gear, a nut, a lock nut, a lead screw, an upper bearing, a lower bearing, a sliding body, a hook plate and a guide wheel, wherein the motor reducer is coaxially connected with the small gear and fixed at the upper part of a press device, and the small gear is meshed with the provided big gear. The small gear is driven by the motor reducer to rotate, thereby driving the big gear which is meshed with the small gear to rotate, leading the big gear to further drive the nut to rotate, driving the lead screw, the sliding body, the hook plate and the like to move upwards, and leading the hook plate to play the role of hooking a baseplate of the box girder beam. When in application, the pressing mechanism is arranged on the box-type girder beam, the baseplate of the box-type girder beam is hooked through the hook plate arranged below the left pressing device and the right pressing device, and the upper part and the lower part are pressed through two pressing points arranged on a walking device, thereby leading the panel to be tightly bonded with the web plate and achieving the purposes of spot welding and fixing.

Description

The spot welding hold-down mechanism that is used for box beam panel and web

Technical field

The utility model relates to a kind of box beam welding mechanism that is used for, particularly a kind of spot welding hold-down mechanism that is used for box beam panel and web.

Background technology

At present, in group during to the panel of dissimilar box beam (as crane girder) and web, the general employing on the panel adds counterweight or adopts easy hold down gag, panel and web are fitted tightly, group is unfavorable for also that to not only waste of manpower of box beam, material resources and time soldering group fits tightly panel and the web that guarantees box beam (crane girder) like this, more is unfavorable for producing in batches, and there is great potential safety hazard, brings inconvenience for enterprise operation and production.

The utility model content

The purpose of this utility model is to overcome above-mentioned weak point, solves the technical problem that exists in the prior art, and a kind of product, quality that can effectively improve product is provided, and accelerates the spot welding hold-down mechanism that is used for box beam panel and web of welding speed.

The embodiment that the utility model adopted is as follows for achieving the above object:

A kind of spot welding hold-down mechanism that is used for box beam panel and web, it is characterized in that this mechanism comprises is used to compress being of panel and web symmetrically arranged left and right sides hold down gag, and described left and right sides hold down gag comprises: motor reducer, pinion, gear wheel, screw, locknut, leading screw, upper bearing (metal), lower bearing, slide mass, hook plate, directive wheel; The coaxial connection pinion of described motor reducer and be fixed on press device top, described pinion and the gear wheel engagement that is provided with, described gear wheel is connected with screw by key, and by locknut connection gear wheel and the rotation of screw drive screw, described screw is respectively equipped with bearing up and down and is installed in hold down gag inside and only rotates with spacing screw, described screw is connected with leading screw, and leading screw cooperates the screw rotation and moves up and down; The bottom of described leading screw is connected with the guiding slide mass, and the slideway correspondence of slide mass is arranged on hold down gag body bottom, does not rotate when leading screw moves up and down to limit; Described slide mass bottom is connected with hook plate, and correspondence is provided with two elongated slots on the hook plate, establishes a stator wheel in two elongated slots respectively, and described directive wheel places box beam base plate two side rolls to cooperate hook plate to hook the box beam base plate; Described left and right sides hold down gag is by the synchronous or asynchronous driving of motor reducer, two inboards connect by the crossbeam that is provided with, bottom, two ends, the crossbeam left and right sides connects respectively establishes a running gear, left and right sides running gear is provided with driving wheel separately and cooperates with driven pulley, driving wheel relies on splined shaft to drive by motor reducer, two pressure points also respectively are set on the running gear of the described left and right sides, and corresponding pressure point is provided with and manually compresses leading screw.

The beneficial effects of the utility model are: this mechanism compares with existing apparatus, has mobility flexibly, effectively guaranteed the welding quality of box beam panel and web, and be more conducive to accelerate the speed of welding, and saved manpower to a certain extent, reduced production cost, provide reliable guarantee for enterprise produces box beam (as crane girder) in batches and carries out continuous productive process.The utility model reasonable in design, dependable performance, easy to operate, be widely used.

Description of drawings

Fig. 1 is a front view of the present utility model;

Fig. 2 is the side view of Fig. 1;

Fig. 3 is the vertical view of Fig. 1.

Among the figure: 1 hold down gag, 2 motor reducers, 3 pinions, 4 locknuts, 5 leading screws, 6 keys, 7 gear wheels, 8 screws, 9 bearings, 10 bearings, 11 slide masses, 12 hook plates, 13 directive wheels, 14 running gears, 15 crossbeams, 16 compress leading screw, 17 moulding beds, 18 base plates, 19 webs, 20 panels.

The specific embodiment

Below in conjunction with figure and preferred embodiment, details are as follows to the specific embodiment, structure, feature that foundation the utility model provides:

As shown in Figure 1-Figure 3, this is used for the spot welding hold-down mechanism of box beam panel and web (is example with the crane box beam), comprise be used to compress panel 20 and web 19 be symmetrically arranged left and right sides hold down gag 1, left and right sides hold down gag 1 comprises: motor reducer 2, pinion 3, gear wheel 7, screw 8, locknut 4, leading screw 5, metal (upper 9 and 10, slide mass 11, hook plate 12, directive wheel 13; Described motor reducer 2 coaxial connection pinions 3 and be fixed on press device 1 top, described pinion 3 and a gear wheel 7 engagements, described gear wheel 7 is connected with screw 8 by key 6 and makes gear wheel 7 fixing with screw 8 by locknut 4, have bearing 9 and bearing 10 on the described screw 8 and be installed in hold down gag 1 inside, spacing screw 8 can only rotate and can not do radial motion, described screw 8 is connected with leading screw 5, when leading screw 8 rotates at screw 8, can only move up and down, leading screw 5 bottoms are connected with guiding slide mass 11, described slide mass 11 does not rotate when guaranteeing that leading screw 5 moves up and down, the slideway of slide mass 11 is arranged on hold down gag body bottom, and described slide mass 11 bottoms are connected with hook plate 12; Described hook plate 12 has two elongated slots in order to hook box beam base plate 18 on the described hook plate 12, and a stator wheel 13 respectively is housed in two grooves, and described directive wheel 13 is to roll with box beam base plate 18 both sides and cooperates, and plays the correcting effect.Box beam base plate 18 belows are moulding bed 17.

The operation principle of hold down gag is: motor reducer drives gear wheel 7 rotations that 3 rotations of 2 band pinions drive its engagement, gear wheel 7 rotations drive screw 8 rotations again, impel leading screw 5 and slide mass 11, hook plate 12 etc. to move up, reach the purpose that hook plate 12 hooks box beam base plate 18.

Left and right sides hold down gag 1 can pass through motor reducer 2 synchronous or asynchronous drivings, middle by crossbeam 15 connections, bottom, two ends, crossbeam 15 left and right sides is established a running gear 14 respectively, the driven pulley that left and right sides running gear 14 is respectively established a driving wheel and is mated, driving wheel relies on splined shaft directly to drive by motor reducer 2, and two pressure points also respectively are set on the left and right sides running gear 14, and pressure point constitutes by manually compressing leading screw 16, the effect of pressure point is: the firstth, compress panel, and the secondth, do not allow road wheel stressed.

During application, this mechanism is positioned on the box beam, hook plate 12 below left and right sides hold down gag 1 hooks two pressure points that are provided with on box beam base plate 18 and the running gear 14, manually compressing leading screw 16 makes left and right sides road wheel (comprise driving wheel and the driven pulley that is mated) break away from the box beam panel to allow and compress leading screw 16 and compress box beam panel 20, promptly compress, make panel 20 and web 19 to fit tightly up and down, reach the fixing purpose of spot welding.

In the operation, spot welding finishes a place, unclamp the thrust of 1 pair of box beam base plate of hold down gag, and the leading screw 16 that compresses of four pressure points of manual adjustments makes the left and right sides four wheels of running gear 1 be pressed onto the box beam panel, reach till the own wt that bears left and right sides hold down gag 1; By opening travel driving unit, drive left and right sides hold down gag 1 and be advanced to next welding place; Operation by that analogy can guarantee effectively that just the whole box beam panel 20 and the spot welding of web 19 compress the implementation result highly significant.

Above-mentioned with reference to embodiment to the detailed description that this spot welding hold-down mechanism that is used for box beam panel and web carries out, be illustrative rather than determinate; Therefore in the variation and the modification that do not break away under the utility model general plotting, should belong within the protection domain of the present utility model.

Claims

1. spot welding hold-down mechanism that is used for box beam panel and web, it is characterized in that this mechanism comprises is used to compress being of panel and web symmetrically arranged left and right sides hold down gag, and described left and right sides hold down gag comprises: motor reducer, pinion, gear wheel, screw, locknut, leading screw, upper bearing (metal), lower bearing, slide mass, hook plate, directive wheel; The coaxial connection pinion of described motor reducer and be fixed on press device top, described pinion and the gear wheel engagement that is provided with, described gear wheel is connected with screw by key, and by locknut connection gear wheel and the rotation of screw drive screw, described screw is respectively equipped with bearing up and down and is installed in hold down gag inside and only rotates with spacing screw, described screw is connected with leading screw, and leading screw cooperates the screw rotation and moves up and down; The bottom of described leading screw is connected with the guiding slide mass, and the slideway correspondence of slide mass is arranged on hold down gag body bottom, does not rotate when leading screw moves up and down to limit; Described slide mass bottom is connected with hook plate, and correspondence is provided with two elongated slots on the hook plate, establishes a stator wheel in two elongated slots respectively, and described directive wheel places box beam base plate two side rolls to cooperate hook plate to hook the box beam base plate; Described left and right sides hold down gag is by the synchronous or asynchronous driving of motor reducer, two inboards connect by the crossbeam that is provided with, bottom, two ends, the crossbeam left and right sides connects respectively establishes a running gear, left and right sides running gear is provided with driving wheel separately and cooperates with driven pulley, driving wheel relies on splined shaft to drive by motor reducer, two pressure points also respectively are set on the running gear of the described left and right sides, and corresponding pressure point is provided with and manually compresses leading screw.