CN207239552U - Frame Welding support device compressing structure - Google Patents

Abstract

The utility model discloses a kind of Frame Welding support device compressing structure, it is related to the fixation or positioning for workpiece, had the following disadvantages for solving existing welding fixture, it is cumbersome, time-consuming and laborious to weld operating process, after vehicle frame lifting turn-over, can not parking position accuracy welding fixture the welding of the first face when solder joint initial position, and welding fixture fastening effect is poor, the problem of causing pitch of holes deviation to be up to L ± 0.03.It includes bearing base, lifting handwheel, installation disk, the first drive shaft, the second hollow drive shaft, the 3rd hollow drive shaft, lower drive disk, upper drive disk, limit shaft, the upper driving tray bottom connection limit shaft.The initial position of solder joint when the first face welding of the technical program energy parking position accuracy welding fixture, and welding fixture fastening effect is improved, reduce pitch of holes deviation.

Description

Frame Welding support device compressing structure

Technical field

The fixation or positioning for workpiece are the utility model is related to, is that Frame Welding support device compresses specifically Structure.

Background technology

As body of a motor car product structure and welding between be complementary, good product structure, meet intensity and On the basis of function, welding procedure is relatively easy, implements to be relatively easy to, and body structure and assembly relation are closely bound up, mesh The preceding two major classes work that we need to mainly be handled in early period Simultaneous Engineering for product in itself：One is auto-body assembly relation, two For automobile body welding craftsmanship, following emphasis is described with regard to Frame Welding support device with compressing structure.

Patent document 201410807276.0 discloses a kind of racing car welding clamp of vehicle frame, including platform, platform are equipped with Inverted T shaped groove, is equipped with 4040 aluminium section bar of level, 4040 aluminium section bar both ends of level are respectively by T-shaped solid on the inverted T shaped groove face of platform Clamp plate is fixedly connected with platform；It is opposite on 4040 aluminium section bar of level to be equipped with L-type gusset joint plate, two with respect to L-type gusset joint plates it Between be connected with vertical 4040 aluminium section bar；Be equipped with arc groove strap on vertical 4040 aluminium section bar, arc groove strap by Arc groove fixed plate and U-bolt composition, when use, are fastened vehicle frame steel pipe clamp with arc groove strap.

Patent document 201220113121.3 discloses a kind of auxiliary frame welding fixture, including positioner, pressing device；Also Including turnover device, mobile running gear；Mobile running gear can horizontal level movement, mobile running gear includes removable bottom Seat, column, column are installed on movable pedestal；There is bearing hole on column；Include swing bolster and main branch on turnover device Support, rotation axis, rotating disk, clump weight；Rotation axis is slidably matched with the swivel bearing on column；Rotating disk and swing bolster and master Support is fastenedly connected by rotation axis；Clump weight is installed on the rotating pan；It is horizontal that positioner, pressing device are fixed on rotation On beam and main support；Rotating disk, which rotates, drives rotation axis, swing bolster and main support both circumferentially to rotate upset work with clump weight Part indexing, clump weight, to equilbrium position, implement welding with swing bolster and main support and workpiece turning.

The production of automobile body welding technique is usually to be carried out on welding fixture, installs matched weldering in advance on workbench Welding fixture, recycles welding fixture to clamp vehicle frame, vehicle frame is welded.After the completion of being welded when the first face, worker unclamps welding Fixture, lifts turn-over to vehicle frame, is then welded into the second face of driving frame.Existing welding fixture has the following disadvantages, welding operation Process is cumbersome, time-consuming and laborious, after vehicle frame lifting turn-over, can not parking position accuracy welding fixture the welding of first face when solder joint Initial position, and welding fixture fastening effect is poor, causes pitch of holes deviation to be up to L ± 0.03.

Utility model content

The utility model aim is intended to weld when providing a kind of the first face welding of energy parking position accuracy welding fixture The initial position of point, and welding fixture fastening effect is improved, the Frame Welding support device for reducing pitch of holes deviation is tied with compression Structure.

To realize above-mentioned technical purpose, the technical solution adopted in the utility model is as follows：

Frame Welding support device compressing structure, including bearing base, lifting handwheel, installation disk, the first driving turn Axis, the second hollow drive shaft, the 3rd hollow drive shaft, lower drive disk, upper drive disk, limit shaft, the bearing bottom Seat is built-in with the second drive shaft, and the first drive shaft left end connects lifting handwheel, and the first drive shaft right end prolongs Put in bearing base and touch the second drive shaft lower end, the second drive shaft upper end connects the 3rd drive shaft；It is described Upper driving tray bottom connection limit shaft, the limit shaft include limit shaft Part I, limit shaft Part II, limit shaft the 3rd Part, the limit shaft Part I are radially distributed with 3~5 the first projections, and the limit shaft Part III side wall epimere Equipped with the first keyway, the second drive shaft inner wall is equipped with and matched second keyway of the first keyway, and the 3rd driving Shaft upper end is equipped with and the matched the first sliding groove of the first projection.

Using the utility model of above-mentioned technical proposal, the limit shaft with keyway is added, passes through the first keyway and the second key Groove cooperates with each other, it is ensured that after vehicle frame lifting turn-over, solder joint when the first face of energy parking position accuracy welding fixture is welded Initial position, and utilize keyway locking positioning, it is ensured that pitch of holes deviation is less than L ± 0.02.

Further limit, the upper drive disk outer ring passes through bearing connecting plate connecting welding fixture.

Lower drive disk and upper drive disk using mutual cooperation, after the completion of being welded when the first face, lift vehicle frame turn-over, complete Into after turn-over, easy to be accurately positioned again.

Further limit, the lower drive disk central shaft is equipped with the first circular hole being used for through limit shaft.

Further limit, the second drive shaft lower end is bevel gear.

Further limit, the second drive shaft outer wall is equipped with the first sleeve, second drive shaft and first set Rubber ring is inlaid between cylinder.

Rubber ring is added, on the one hand prevents abrasion caused by the contact firmly of the second drive shaft and the 3rd drive shaft, it is another Aspect, prevents the second drive shaft from coming off from installation disk.

Further limit, the limit shaft Part I is radially distributed with 3 the first projections.

Compared with prior art, convenient disassembly, service life length, greatly reduces cost to the utility model.

Brief description of the drawings

The utility model can be further illustrated by the nonlimiting examples that attached drawing provides；

Fig. 1 welds support device compressing structure schematic diagram for the utility model frame；

Fig. 2 is the enlarged diagram of part A in Fig. 1；

Main element symbol description is as follows：

Bearing base 1, lifting handwheel 2, welding fixture 3, the first drive shaft 4, the second drive shaft 5, the 3rd driving turn Axis 6, lower drive disk 7, upper drive disk 8, limit shaft 9, limit shaft Part I 91, limit shaft Part II 92, limit shaft the 3rd Part 93, the first projection 94, the first keyway 95, the first sliding groove 96, bearing connecting plate 10, the first sleeve 11, rubber ring 12.

Embodiment

It is right with reference to the accompanying drawings and examples in order to make those skilled in the art that the utility model may be better understood Technical solutions of the utility model further illustrate.

Such as Fig. 1, shown in Fig. 2, Frame Welding support device compressing structure, including bearing base 1, lifting handwheel 2, first Drive shaft 4, the second hollow drive shaft 5, the 3rd hollow drive shaft 6, lower drive disk 7, upper drive disk 8, limit shaft 9, the bearing base 1 is built-in with the second drive shaft 5,4 left end of the first drive shaft connection lifting handwheel 2, and the first driving turns 4 right end of axis extends into bearing base 1 and touches 5 lower end of the second drive shaft, and connection the 3rd driving in 5 upper end of the second drive shaft turns Axis 6；Upper 8 bottom of drive disk connects limit shaft 9, and limit shaft 9 includes limit shaft Part I 91, limit shaft Part II 92, limit Position axis Part III 93, limit shaft Part I 91 is radially distributed with 3~5 the first projections 94, and limit shaft Part III 93 Side wall epimere is equipped with the first keyway 95, and 92 inner wall of the second drive shaft is equipped with and 95 matched second keyway of the first keyway, and the Three drive shafts, 6 upper end is equipped with and 94 matched the first sliding groove 96 of the first projection.

Upper 8 outer ring of drive disk passes through 10 connecting welding fixture 3 of bearing connecting plate.

Lower 7 central shaft of drive disk is equipped with the first circular hole being used for through limit shaft 9.

Second drive shaft, 5 lower end is bevel gear.

Second drive shaft, 5 outer wall is equipped with the first sleeve 11, and rubber is inlaid between the second drive shaft 5 and the first sleeve 11 Cushion rubber 12.

As the preferred embodiment of the technical program, limit shaft Part I 91 is radially distributed with 3 the first projections 94.

When specifically used, matched welding fixture is installed in advance on workbench, recycles welding fixture to clamp Vehicle frame, welds vehicle frame.After the completion of being welded when the first face, lifting handwheel is rotated clockwise, upper drive disk acts upwards, institute The vehicle frame that need to be welded integrally is higher than welding fixture, and worker unclamps welding fixture, and turn-over is lifted to vehicle frame, after completing turn-over, the inverse time Pin rotates lifting handwheel, upper drive disk downward actuation, and the vehicle frame of required welding is integrally flushed with welding fixture, prepares the weldering of the second face Connect.

Frame Welding support device provided by the utility model is described in detail with compressing structure above.It is specific real The explanation for applying example is only intended to help the method and its core concept for understanding the utility model.It should be pointed out that led for this technology For the those of ordinary skill in domain, on the premise of the utility model principle is not departed from, if can also be carried out to the utility model Dry to improve and modify, these are improved and modification is also fallen into the protection domain of the utility model claims.

Claims (6)

1. Frame Welding support device compressing structure, it is characterised in that：Including bearing base, lifting handwheel, installation disk, the One drive shaft, the second hollow drive shaft, the 3rd hollow drive shaft, lower drive disk, upper drive disk, limit shaft, institute State bearing base and be built-in with the second drive shaft, the first drive shaft left end connects lifting handwheel, and first driving turns Axis right end extends into bearing base and touches the second drive shaft lower end, and the 3rd driving of the second drive shaft upper end connection turns Axis；The upper driving tray bottom connection limit shaft, the limit shaft include limit shaft Part I, limit shaft Part II, limit Position axis Part III, the limit shaft Part I are radially distributed with 3~5 the first projections, and the limit shaft Part III Side wall epimere is equipped with the first keyway, and the second drive shaft inner wall is equipped with and matched second keyway of the first keyway, and described 3rd drive shaft upper end is equipped with and the matched the first sliding groove of the first projection.

2. Frame Welding support device compressing structure according to claim 1, it is characterised in that：Outside the upper drive disk Circle passes through bearing connecting plate connecting welding fixture.

3. Frame Welding support device compressing structure according to claim 2, it is characterised in that：In the lower drive disk Mandrel is equipped with the first circular hole being used for through limit shaft.

4. the Frame Welding support device compressing structure according to claim 1 or 2 or 3, it is characterised in that：Described second Drive shaft lower end is bevel gear.

5. Frame Welding support device compressing structure according to claim 4, it is characterised in that：Second driving turns Axis outer wall is equipped with the first sleeve, and rubber ring is inlaid between second drive shaft and the first sleeve.

6. Frame Welding support device compressing structure according to claim 5, it is characterised in that：The limit shaft first 3 the first projections are partially radially distributed with.