CN2250222Y - Double rotary welding position changing machine - Google Patents

Abstract

The utility model relates to a double rotary welding position changing machine, belonging to the category of the welding process equipment. The utility model is characterized in that an L-form roll-over stand is designed, and is composed of an open-web upright arm and an open-web horizontal arm. A small rotary driving device is arranged in the horizontal arm, and can control a working table fixedly connected to the horizontal arm to make the rotation between + 360 DEG. N and-360 DEG. N around the direction perpendicular to the horizontal arm. A big rotary driving device can drive the whole roll-over stand to make the rotation between + 360 DEG. N and-360 DEG. N around a horizontal axis, and therefore, the welded pieces clamped on the working table to make the omnibearing rotation in space to achieve the goal of causing each weld seam to lie in the downward welding state or the throat welding state. The operation is convenient, and safe, and therefore, the welding quality is ensured.

Description

A kind of pair of swinging positioner

The utility model relates to a kind of mechanical component positioner, belongs to welding procedure equipment category.

The general application machine hand of state's external welding large-sized mechanical component domesticly still can not be popularized at present.The positioner of the artificial welding of domestic and international existing usefulness has three kinds of patterns substantially: arm extending type, seat formula, double seat.Existing positioner can not realize making welded part to realize comprehensive rotation in the space, the various weld seams that will be difficult for welding be can not realize for any weld seam in the space of complex component, the workman downhand welding or the ship weldering state of welding easily all are turned to as cross joint, overhead weld etc.; The workbench of fixed component is rotating to when making weld seam parallel with horizontal plane, and weld bead height often is higher than workman's opereating specification again, and when the member weld seam went to lowest part, opening character was bad, also is not easy to workman's operation; Particularly big, out-of-shape in welded part weight, under the weld seam complicated situation, upset can not make the welded part weld seam all be in downhand welding or ship weldering state by crane, and it is also dangerous frequently to take the crane upset, the multipass that needing by welding process control welding deformation requirement also to be difficult for simultaneously overturns, and these have all seriously limited the raising of welding quality and the development that welding is produced, and labor strength is big, efficient is low, poor stability.

The purpose of this utility model, be to provide a kind of positioner of new structure, and design two covers and have a transmission system of auto-lock function, make any position of workman around positioner, as long as can control welded part on the positioner around trunnion axis with perpendicular to this work ± 360 ° n by " control button ", be equivalent to the comprehensive rotation of hyperspace, can accomplish to make on the welded part any weld seam to be in downhand welding or ship weldering state at an easy rate, realize that operation is highly minimum, opening character is best, simultaneously welded part can be stopped the rotation at any time in switching process and is not subjected to the influence of rollover stand counterweight and welded part deadweight.The positioner of new structure is suitable for clamping and the workpiece of the complex structure that overturns, and ensures the security of operation.

Following principle is abideed by in design concept of the present utility model: establish any weld seam of welded part and be a line segment in the space, if this line segment is made ± 360 ° of n around trunnion axis with perpendicular to this axle, be equivalent to do comprehensive rotation in hyperspace, this line segment finally always can be in state parallel to the ground, that is this weld seam always can be in downhand welding or ship weldering state.Therefore design a cover by a upright arm and the L type rollover stand that horizontal arm constitutes, and design two and overlap slew gears, ± 360 ° of n of axle work that workbench on the horizontal arm can wind perpendicular to horizontal arm are rotated, upright arm can be driven whole L type rollover stand and do ± 360 ° of n rotations simultaneously around trunnion axis parallel to the ground.Like this, be fixed on welded part on the rollover stand workbench (anchor clamps tie-plate) and can be implemented in and do comprehensive rotation in the hyperspace, reach the purpose that makes any weld seam on the welded part be in the downhand welding or the ship weldering of easy welding.

Contour structures of the present utility model and slewing gear, electric control gear such as Fig. 1～shown in Figure 3.Rollover stand is designed to a L molding box body, is made of the upright arm (4) of an empty stomach and the horizontal arm (8) of an empty stomach, counterweight (3) vertically is connected in the upper end of upright arm (4) with bolt.Design a casing (1), it vertically is fixed on the base (9).With the big slewing gear of control L type rollover stand rotation＜see Fig. 2 (a), figure (b)〉and the electric control gear (10) of whole positioner be installed in the casing (1), and the output by big rotary main shaft (2) is in the same place upright arm (4) and casing affixed (1) with linking bond and gland, makes whole L type rollover stand overhang a side of casing.When the workman presses control button (5) and goes up correspondent button, can start big turning motor (11) forward or reverse by electric control gear, and drive big revolution worm screw (15), turn round the rotation that worm gear (16) and big rotary main shaft (2) are made respective direction greatly by minor sprocket (12), chain (13) and hinge wheel (14), big rotary main shaft (2) can drive whole rollover stand by the upright arm (4) that is fixed together with it and make ± 360 ° of n around trunnion axis and rotate.The little slewing gear (see figure 3) that to control anchor clamps tie-plate (6) (being workbench) rotation is installed in the empty stomach chamber of rollover stand horizontal arm (8), and the output of little rotary main shaft (21) is fixed in the horizontal arm top by linking bond and anchor clamps tie-plate (6).When the workman presses control button (5) and goes up correspondent button, can start little turning motor (17) forward or reverse by electric control gear, drive little revolution worm screw (19) and little revolution worm gear (20) is done rotation forward or backwards by elastic coupling (18), thus by little rotary main shaft (21) drive anchor clamps tie-plate (6) fixed thereon and be installed on the tie-plate the welded part work perpendicular to horizontal arm ± 360 ° of n rotate.Since two cover slew gears be actually control two rotary main shafts (2), (21) do respectively horizontal direction and perpendicular on this direction ± 360 ° of n rotations, be reflected on the control button (5) and can have " on ", button such as D score, " left side ", " right side ", " stopping ", make welded part can do comprehensive upset in the space.Controlling power line (22) that little slewing gear the starts empty stomach chamber and the axle center hole of big rotary main shaft (2) by rollover stand is connected with collecting ring (23) on being installed in big rotary main shaft input,＜see Fig. 2 (a), Fig. 3 〉, electric control gear (10) is by brush (24), collecting ring (23), offer little turning motor (17) with electric current, can avoid power line (22) that the coiling phenomenon takes place, thereby rollover stand and welded part can infinitely be rotated.Can select to have the reductor of braking function, the workman handles " stopping " button on the control button, and rollover stand and workbench are stopped the rotation.

The utility model is simple in structure, and clamping workpiece is convenient, and the welding operation is highly low, thereby welding quality is guaranteed, and Costco Wholesale is low, the production efficiency height, and security is good.The utility model is a kind of desirable welding jig easy to utilize with fine economic benefit and practical value.

Accompanying drawing:

The two swinging positioner shape assumption diagrams of Fig. 1

Fig. 2 (a) is installed in the big rotary main shaft in the casing

Fig. 2 (b) is installed in the big slewing gear structure chart in the casing

Fig. 3 is installed in the little slewing gear structure chart in the horizontal arm

Embodiment

Referring to horizontal arm (8), the base (9) of the upright arm (4) of Fig. 1 casing (1), big rotary main shaft (2), counterweight (3), L type rollover stand, control button (5), anchor clamps tie-plate (6), little rotary main shaft (7), L type rollover stand, be installed in the electric control gear (distribution board) (10) in the casing.The utility model vertically is fixed in the casing on the base by base, and L type rollover stand that is fixed together by big rotary main shaft with casing and the anchor clamps tie-plate (workbench) that is fixed on the horizontal arm by little rotary main shaft constitute.Counterweight vertically is fixed in the upright arm top.Control button connects with distribution board in the casing by cable.

Referring to Fig. 2 (a), Fig. 2 (b) direct connected type cycloid pin wheel reductor (11), minor sprocket (12) chain (13), hinge wheel (14), greatly turn round worm screw (15), turn round worm gear (16), big rotary main shaft (2), distribution board (10), collecting ring (23), brush (24), casing (1) greatly.Fig. 2 (a) faces cut-away view for the part of casing (1), and Fig. 2 (b) is casing (a 1) internal structure side view.Big slewing gear and electric control gear are installed in the casing (1), can pass through minor sprocket (12) during direct connected type cycloid pin wheel reductor (11) forward or reverse, and by chain (13) and the big revolution of hinge wheel (14) drive worm screw (15) forward or reverse, thereby drive big revolution worm gear (16) forward or reverse with its engagement, referring to Fig. 1, big rotary main shaft can drive L type rollover stand and do ± 360 ° of n rotations around trunnion axis.

Referring to Fig. 3 horizontal arm (9), direct connected type cycloid pin wheel reductor (17), elastic coupling (18), little revolution worm screw (19), little revolution worm gear (20), little rotary main shaft (21), anchor clamps tie-plate (6).Little slewing gear is installed in the empty stomach chamber of horizontal arm (8) of L type rollover stand, when reductor (17) forward or reverse, can pass through elastic coupling (18) and drive little revolution worm screw forward or reverse, thereby drive little revolution worm gear (21) forward or reverse, can make the anchor clamps that are fixed on the horizontal arm connect connection dish (6) forward or reverse, referring to Fig. 1, the anchor clamps tie-plate can drive welded part and do ± 360 ° of n rotations.

Empty stomach chamber and the axle center hole of big rotary main shaft (2) of the power line (22) of controlling little slewing gear referring to Fig. 1, Fig. 2 (a), Fig. 3 by L type rollover stand is connected with collecting ring on being installed in big rotary main shaft input, input current offers motor (11) by brush (24), can avoid taking place the coiling phenomenon like this, the anchor clamps tie-plate can be rotated by unlimited ± 360 ° n.

Claims (5)

1. two swinging positioner, transmission device, electric control gear by base (9), rollover stand (4), (8) and the rotation of control rollover stand are formed, it is characterized in that said rollover stand is a L molding box body, constitute by the upright arm (4) of an empty stomach and the horizontal arm (8) of an empty stomach; Said transmission device is made up of big slewing gear and little slewing gear.

2. as claimed in claim 1 pair of swinging positioner is characterized in that, the upright arm of said rollover stand (4) uses linking bond and gland and casing (1) affixed by big rotary main shaft (2) output, and casing (1) is fixed on the base (9).

3. want 1 and described pair of swinging positioner of claim 2 as right, it is characterized in that, said big slewing gear is installed in the casing (1), the minor sprocket (12) that links by direct connected type cycloid pin wheel reductor (11), with reductor (11) output shaft, the hinge wheel (14) that links to each other with minor sprocket by chain (13), the big revolution worm screw (15) that connects with hinge wheel by key, with turn round together big revolution worm gear (16) of worm engaging greatly, by key and turn round the big rotary main shaft (2) that worm-wheel shaft is linked together greatly and form.

4. as claimed in claim 1 pair of swinging positioner, it is characterized in that, said little slewing gear is installed in the empty stomach chamber of horizontal arm (8), taken turns reductor (17), elastic coupling (18), little revolution worm screw (19), formed with the little rotary main shaft (21) of key connecting with the little revolution worm gear (20) of little revolution worm engaging and with little revolution worm-wheel shaft by direct connected type cycloid pin, folder soldier's terminal pad (6) is fixed together with little rotary main shaft (21).

5. as claimed in claim 1 pair of swinging positioner, it is characterized in that said electric control gear is by distribution board (10), compositions such as control button (5) and corresponding power line are controlled power line (22) that little slewing gear the starts empty stomach chamber and the axle center hole of big rotary main shaft (2) by rollover stand and are connected with collecting ring (23) and brush (24) on being installed in big rotary main shaft (2) input.