CN111266778A - Crane supporting leg box welding positioning device - Google Patents

Abstract

The invention relates to the technical field of cranes, in particular to a crane supporting leg box welding and positioning device, which can solve the problems of complex structure and high cost of the existing automatic welding device. This crane landing leg case welding position device includes locating platform, locating platform is last to have two supporting seats more than along locating platform's trip axis direction interval arrangement, including two tip supporting seats that are used for supporting the axial tip of landing leg case respectively in the supporting seat, be equipped with on at least one tip supporting seat and supply the landing leg case protruding along the axial positioning of landing leg case axial positioning, at least one be equipped with on the supporting seat and supply the landing leg case protruding along the axial direction location of perpendicular to landing leg case on locating platform, still be equipped with on the bellied tip supporting seat of axial positioning and be used for pressing to the inside wall of landing leg case in order to press the clamp plate of landing leg case on the supporting seat.

Description

Crane supporting leg box welding positioning device

Technical Field

The invention relates to the technical field of cranes, in particular to a crane supporting leg box welding and positioning device.

Background

With the continuous development of the building industry, the demand of engineering vehicles such as cranes and the like is increasing, for example, an automobile crane is a crane which is used for installing a hoisting operation part on a special or general automobile chassis and comprises a loading part and a unloading part, wherein the loading part is the hoisting part, the unloading part is a carrier vehicle part, and the unloading part comprises components such as an underframe, a chassis, a horizontal supporting leg and the like. For the horizontal supporting leg, the horizontal supporting leg consists of a fixed supporting leg box and a movable supporting leg, the movable supporting leg and the fixed supporting leg box are processed by steel plates, the fixed supporting leg box and the frame are welded into a whole, and the movable supporting leg can move in the fixed supporting leg box so as to adjust the stabilizing moment during hoisting and ensure the overall stability of the crane during working. The prior structure of the leg box can refer to Chinese patent CN207468063U with the publication date of 2018.06.08.

When the supporting leg box is manufactured, the traditional manual welding method is low in production efficiency and difficult to meet the increasing market demand, and the welding quality of the crane supporting leg box can be effectively guaranteed and the production efficiency can be improved by combining a welding key part with mechanical overturning equipment and a mechanical arm. For example, chinese patent application publication No. CN108247247A, published as 2018.07.06, discloses an automatic welding device for a horizontal leg of construction machinery equipment, the automatic welding machine comprises a driving positioner, a driven positioner and a welding robot arranged between the driving positioner and the driven positioner, wherein a rotatable driving clamping hand is arranged on the driving positioner, a first pressing assembly used for pressing the upper surface of a horizontal leg to be welded is arranged on the driving clamping hand, a rotatable driven clamping hand is arranged on the driven positioner, a second pressing assembly used for pressing the side surface of the horizontal leg to be welded is arranged on the driven clamping hand, a rotary locking assembly used for locking or unlocking the driven clamping hand is further arranged on the driven positioner, a supporting group used for supporting the bottom surface of the horizontal leg to be welded is further arranged between the driving positioner and the driven positioner, and a pushing assembly used for pushing the horizontal leg to be welded into the driving clamping hand and the driven clamping hand is further arranged on the same side of the driving positioner and the driven positioner. When carrying out the welding jobs of landing leg case, need hoist and mount the support frame with the landing leg case to need utilize the promotion subassembly with landing leg case propelling movement target in place, then first compress tightly subassembly and second and compress tightly the subassembly and can fix the landing leg case, and initiative tong and driven tong can drive the landing leg case and rotate, thereby the welding robot of being convenient for welds the landing leg case.

However, the automatic welding device disclosed in the above patent needs to be provided with a sensor to detect the pushing position of the pushing assembly, and needs to be provided with a pressing cylinder to press the workpiece, so that the structure is complex and the cost is high.

Disclosure of Invention

The invention aims to provide a crane supporting leg box welding and positioning device, which solves the problems of complex structure and high cost of the existing automatic welding device.

In order to achieve the purpose, the crane supporting leg box welding and positioning device adopts the following technical scheme:

crane landing leg case welding position device, including positioning platform, positioning platform is last to have two supporting seats more than along positioning platform's trip axis direction interval arrangement, including two tip supporting seats that are used for supporting the axial tip of landing leg case respectively in the supporting seat, it is protruding to be equipped with the axial positioning who supplies the landing leg case along landing leg case axial positioning on at least one tip supporting seat be equipped with on the supporting seat and supply the landing leg case to fix a position the side direction on positioning platform along the axial direction of perpendicular to landing leg case protruding, still be equipped with on the bellied tip supporting seat of axial positioning and be used for pressing to the inside wall of landing leg case in order to press the clamp plate of landing leg case on the supporting seat.

The beneficial effects are that: the supporting leg box realizes the positioning on the positioning platform through the axial positioning bulge and the lateral positioning bulge, and the pressing arm presses the supporting leg box on the positioning platform. When turning device drove the motion of locating platform, the landing leg case can with locating platform remain stable's cooperation relation, the welding robot of being convenient for welds the landing leg case, sets up the supporting seat on locating platform, simple structure, the realization of being convenient for also has low cost's advantage in the actual production concurrently.

Further, the supporting seat comprises a top plate used for supporting the supporting leg box and a bottom plate connected with the positioning platform, and a telescopic structure is arranged between the top plate and the bottom plate to achieve height adjustment of the supporting seat.

The beneficial effects are that: be provided with extending structure between roof and bottom plate, can make the high realization of supporting seat adjustable, through the height that changes the supporting seat, the landing leg case that can the more not unidimensional of adaptation.

Furthermore, the telescopic structure comprises an upper screw fixed on the top plate and a lower screw fixed on the bottom plate, and the rotating directions of the upper screw and the lower screw are opposite; the telescopic structure further comprises a rotary sleeve for connecting the upper screw rod and the lower screw rod, and an upper thread section matched with the upper screw rod and a lower thread section matched with the lower screw rod are arranged in the rotary sleeve.

The beneficial effects are that: the two studs move in the opposite directions or in the opposite directions by adopting the reverse thread matching, the structure is simple, the application is wide in actual production, and the operation is convenient for operators to realize in the embodiment.

Furthermore, a boss is arranged at one end, far away from the supporting leg box, of the top plate of the supporting seat, the boss is provided with a stop surface in stop fit with the corresponding side surface of the supporting leg box, and the boss forms an axial positioning bulge.

The beneficial effects are that: the boss is adopted to form the axial positioning protrusion, the boss has a large supporting surface, the supporting leg box can be stably supported, and the stability of the welding and positioning device for the crane supporting leg box in working is improved.

Further, the boss sets up the one end that has the scarf at the landing leg case, it is provided with the pressure arm to hang through threaded fastener on the boss, the pressure arm has the crimping end that presses to landing leg case upper surface and the stiff end of fixing with threaded fastener.

The beneficial effects are that: the pressing arm is adopted to form the pressing plate, and the pressing arm is simple in structure and convenient to realize.

Furthermore, a waist-shaped hole for the threaded fastener to penetrate is formed in the pressure arm.

The beneficial effects are that: the waist-shaped hole is formed in the pressure arm, so that the relative position relation between the pressure arm and the landing leg box can be conveniently adjusted, and the crane landing leg box welding and positioning device can be adapted to landing leg boxes with more sizes.

Furthermore, be equipped with the waist shape hole that extends with the direction of perpendicular to axis of rotation on the roof, still be provided with and form the bellied baffle of side direction location, the downthehole threaded fastener who is used for with baffle fixed connection that wears to be equipped with of waist shape, the baffle passes through threaded fastener and removes in order to realize along the adjustable of perpendicular to axis of rotation direction position on the roof in waist shape downthehole.

The beneficial effects are that: the baffle realizes that the position is adjustable through waist shape hole, can make the landing leg case welding position device adaptation landing leg case of more differences of width, improves the suitability.

Furthermore, be equipped with the fixed slot that extends along its trip axis direction on the locating platform, the direction is provided with the mounting that removes along the trip axis in the fixed slot, the one end that is close to the fixed slot of supporting seat is through with mounting fixed connection in order to realize that the position is adjustable on the trip axis direction.

The beneficial effects are that: the supporting seats are adjustable in position on the positioning platform through the fixing parts, so that the crane supporting leg box welding positioning device can be adapted to supporting leg boxes with more different lengths, and operators can adjust the positions of the supporting seats conveniently.

Furthermore, the section of the fixing groove is T-shaped, and the fixing piece in the fixing groove is a T-shaped bolt.

The beneficial effects are that: set up fixed slot and mounting into the T shape, have great direction fitting surface between the cell wall of fixed slot and the T shape bolt, it is more stable, smooth and easy when can make the supporting seat move on positioning platform.

Furthermore, an auxiliary support used for supporting the middle of the supporting leg box is further arranged between the two end supporting seats, and a lateral positioning bulge for positioning the supporting leg box on the positioning platform along the direction perpendicular to the axial direction of the supporting leg box is arranged on the auxiliary support.

The beneficial effects are that: still be provided with on positioning platform with tip supporting seat complex auxiliary stay, be provided with the side direction location arch on the auxiliary stay, improved the stability of landing leg case when positioning platform upset.

Drawings

FIG. 1 is a left side view of a crane leg box welding and positioning device in a state of being matched with a leg box;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is an enlarged view of FIG. 1 at B;

FIG. 4 is a top view of the crane leg box welding and positioning device of the present invention in cooperation with a leg box;

fig. 5 is an enlarged view of fig. 4 at C.

In the figure: 01. positioning the platform; 02. a leg box; 03. a rear support base; 31. a rear roof panel; 32. a rear rotating sleeve; 33. a rear floor; 34. a boss; 04. auxiliary supporting; 41. an auxiliary baffle; 42. an auxiliary top plate; 43. an auxiliary base plate; 05. a front support base; 51. a front top plate; 52. a front rotating sleeve; 53. a front chassis; 54. a stopper; 55. a front baffle; 06. tabletting; 07. pressing the arm; 08. and a through hole.

Detailed Description

The following description will be made with reference to the accompanying drawings, in which a welding and positioning device for a crane leg box is provided.

As shown in fig. 1, the welding and positioning device for the crane leg box is used for being connected with a turnover device, and comprises a positioning platform 01, wherein the positioning platform 01 can be a part of the turnover device or a separately arranged structure. Positioning platform 01 can move under turning device drives, and welding robot welds landing leg case 02 of clamping on positioning platform 01. The positioning platform 01 mainly comprises a plate and a supporting beam, and has a large and flat reference surface, and the supporting beam can provide high mechanical strength for the positioning platform 01. In order to ensure the fixing of the supporting leg box 02, more than two supporting seats are arranged on the positioning platform 01 at intervals along the direction of the overturning axis of the positioning platform, the supporting seats comprise two end supporting seats which are respectively used for supporting the end parts of the supporting leg box 02 along the axial direction of the supporting leg box, the two end supporting seats are respectively positioned on the bottom surfaces of the two ends of the supporting leg box 02 in the length direction, for the convenience of expression, the left side is defined as the front side and the right side is defined as the rear side in the direction of fig. 1, the two end supporting seats are respectively a front supporting seat 05 and a rear supporting seat 03, and the two supporting seats are arranged at intervals along the overturning axis of the. At least one of the two end supporting seats is provided with an axial positioning bulge for the supporting leg box 02 to be axially positioned along the supporting leg box 02, at least one of all the supporting seats on the positioning platform is provided with a lateral positioning bulge for the supporting leg box 02 to be positioned and arranged on the positioning platform 01 along the direction perpendicular to the axial direction of the supporting leg box 02, and the supporting seat provided with the axial positioning bulge is also provided with a pressing plate for pressing the inner side wall of the supporting leg box 02 so as to press the supporting leg box 02 on the supporting seat. The leg box 02 is positioned on the positioning platform 01 by the axial positioning protrusions and the lateral positioning protrusions, and the pressing arm presses the leg box 02 onto the positioning platform 01. When turning device drove the action of positioning platform 01, landing leg case 02 can with positioning platform 01 remain stable cooperation relation, the welding robot of being convenient for welds landing leg case 02.

The welding and positioning device for the crane leg box comprises two end supporting seats arranged at intervals along the turning axis, and also comprises an auxiliary support 04 arranged between the two supporting seats, wherein the front supporting seat 05 and the rear supporting seat 03 respectively support the front end and the rear end of the leg box 02, and the auxiliary support 04 positioned between the two supporting seats can support the middle part of the leg box 02. As shown in fig. 2, the rear supporting seat 03 includes a rear top plate 31 and a rear bottom plate 33 arranged in the up-down direction, a telescopic structure is provided between the rear top plate 31 and the rear bottom plate 33, and the adjustment of the interval between the rear top plate 31 and the rear bottom plate 33 can be realized through the telescopic structure, so that the lifting of the whole rear supporting seat 03 is realized to adapt to workpieces to be welded at different heights. Wherein, extending structure includes last screw rod and the lower screw rod of being connected with back roof 31, back bottom plate 33 respectively and correspondingly, it sets up with lower screw rod relatively to go up the screw rod, and screw thread direction of rotation between them is opposite, be provided with the back rotary sleeve 32 of being connected between last screw rod and the lower screw rod, it is provided with upper thread section and lower thread section to correspond last screw rod and lower screw rod respectively in the back rotary sleeve 32, when operating personnel drove back rotary sleeve 32 and rotate, different thread sections correspond with different screw rods in the back rotary sleeve 32 and carry out the screw thread transmission, make two screw rods move in opposite directions or back to back, because back rotary sleeve 32 is rotatory at this moment, consequently two screw rods can realize along the vertical direction's of rotation and do not rotate through the rotation of back rotary sleeve 32, back roof 31 and back bottom plate 33 that correspond with last screw rod and lower screw rod respectively and are connected consequently also can not rotate, only can be along vertical.

Meanwhile, a fixing groove for fixing the rear supporting seat 03 is formed in the positioning platform 01, a groove body of the fixing groove extends along the overturning axis of the positioning platform 01, the cross section of the groove body is T-shaped, a bottom plate of the rear supporting seat 03 is fixed on the positioning platform 01 through a T-shaped bolt, a screw rod of the T-shaped bolt extends out of the fixing groove and is connected with the bottom plate of the rear supporting seat 03, the T-shaped bolt is connected with the groove wall of the fixing groove in a stop fit mode and can move in the fixing groove along the extending direction of the groove body, and the rear supporting seat 03 can be adjusted in position of the positioning platform 01 along the front-back direction through the guide fit of the T-shaped.

The top plate of the rear support seat 03 is further provided with a boss 34 located at the rear end of the top plate, the boss 34 has a front side surface in stop fit with the leg box 02, and the front side surface also forms a stop surface for limiting the axial position of the leg box 02. The boss 34 also forms an axial locating projection on the rear support 03. The boss 34 is provided near one end of the leg box 02 having a diagonal plane, and on the upper surface of the boss 34, a pressing arm 07 extending in the horizontal direction is provided, as shown in fig. 4, a waist-shaped hole extending in the front-rear direction of the leg box 02 (i.e., the extending direction of the turning axis of the positioning platform 01) is provided on the pressing arm 07, the pressing arm 07 adjusts the positional relationship between the pressing arm 07 and the rear support base 03 by a bolt penetrating through the waist-shaped hole, and the pressing arm 07 also forms a pressing plate for pressing the inner side wall of the leg box 02 to press the leg box 02 on the rear support base 03. The pressure arm 07 is cantilevered forward and has a pressure connection end pressing to the upper surface of the leg box 02 and a fixed end engaged with the threaded fastener and the waist-shaped hole, and the pressure connection end of the pressure arm 07 is extended into the upper surface of the leg box 02 to press the leg box 02 on the positioning platform 01.

As shown in fig. 3, the front support holder 05 also includes a front top plate 51, a front bottom plate 53, and a lower screw and an upper screw which connect the front bottom plate 53 and the front top plate 51, the upper screw, the lower screw and the front rotating sleeve 52 cooperate to form a telescopic structure which is the same as that in the rear support holder 03, and the connection mode is the same as that of the telescopic structure of the rear support holder 03, and the front bottom plate 53 of the front support holder 05 is also adjustable in position on the positioning platform 01 by the guiding cooperation of the T-shaped bolt and the fixing groove, and therefore, the details of these two aspects are not repeated here. The front support 05 is different in that a stopper 54 is connected to a front side wall of the front support 05 by a bolt, and the stopper 54 is engaged with a front side stopper of the leg box 02 to form an axial positioning protrusion on the front support 05. And the landing leg box 02 on the front supporting seat 05 is provided with a through hole 08 formed by combining a round hole and a square hole, the through hole 08 is correspondingly provided with a pressing sheet 06, one end of the pressing sheet 06 sinks into the round hole, the other end of the pressing sheet presses the edge of the square hole, a bolt is arranged on the front supporting seat 05, and the pressing sheet 06 is fixed with the front supporting seat 05 through the bolt and is pressed tightly through the bolt.

As shown in fig. 5, the auxiliary support 04 is composed of an auxiliary top plate 42 and an auxiliary bottom plate 43, and a screw rod and an auxiliary rotary sleeve for achieving a telescopic function are also provided between the auxiliary bottom plate 43 and the auxiliary top plate 42. The front top plate 51 of the front support seat 05 is provided with a baffle plate arranged along the width direction of the leg box 02 (namely perpendicular to the length direction of the leg box 02), the front top plate 51 of the front support seat 05 is provided with a waist-shaped hole extending along the length direction of the leg box 02, two sides of the front top plate 51 are simultaneously connected with a front baffle plate 55 through bolts, and the front baffle plate 55 can be adjusted in position on the front top plate 51 through the waist-shaped hole to adapt to the leg boxes 02 with different widths. An auxiliary baffle plate 41 is also arranged on an auxiliary top plate 42 of the auxiliary support 04, and the position of the auxiliary baffle plate 41 is also adjustable through a waist-shaped hole.

When an operator uses the welding and positioning device for the crane leg box, the front support seat 05, the rear support seat 03 and the auxiliary support 04 are fixed on the positioning platform 01 through the fixing grooves, the heights of the rear support seat 03 and the auxiliary support 04 are adjusted to support the leg box 02, the boss 34 on the rear support seat 03 axially positions the leg box 02, then the front support seat 05 is adjusted to enable the stop block 54 on the front support seat 05 to be matched with the boss 34 on the rear support seat 03 to completely axially position the leg box 02, and then the baffle plates on the front support seat 05 and the auxiliary support 04 are adjusted to laterally position the leg box 02. And finally, fixing the pressure arm 07 and the pressure sheet 06 on the supporting seat respectively, and pressing the supporting leg box 02 on the positioning platform 01.

In other embodiments, the end supporting seats can be only arranged at the two ends of the supporting leg box, the auxiliary supporting seat is not arranged in the middle of the supporting leg box, and the axial positioning bulge and the lateral positioning bulge are arranged on the end supporting seats at the moment.

In other embodiments, the end support seat may be provided with both an axial positioning protrusion and a lateral positioning protrusion.

In other embodiments, the tabs on the front support base may be formed with a larger area to directly cover the through-holes of the leg box without using a mounting method that sinks into the through-holes.

In other embodiments, the auxiliary support may be provided in plurality.

In other embodiments, the stop plate forming the lateral stop projection can also be fixedly arranged on the top plate, instead of being movably arranged.

The above-mentioned embodiments, the objects, technical solutions and advantages of the present invention are further described in detail, it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (10)

1. Crane landing leg case welding position device, its characterized in that: including locating platform, locating platform is last to have arranged the supporting seat more than two along locating platform's trip axis direction interval, including two tip supporting seats that are used for supporting the axial tip of landing leg case respectively in the supporting seat, it is protruding to be equipped with the axial positioning who supplies the landing leg case along landing leg case axial positioning on at least one tip supporting seat be equipped with on the supporting seat and supply the landing leg case to fix a position the side direction on locating platform along the axial direction of perpendicular to landing leg case protruding, still be equipped with on the bellied tip supporting seat of axial positioning and be used for pressing to the inside wall of landing leg case in order to press the clamp plate of landing leg case on the supporting seat.

2. The crane leg box welding and positioning device as claimed in claim 1, wherein: the supporting seat comprises a top plate and a bottom plate, the top plate is used for supporting the supporting leg box, the bottom plate is connected with the positioning platform, and a telescopic structure is arranged between the top plate and the bottom plate to achieve height adjustment of the supporting seat.

3. The crane leg box welding positioning device as claimed in claim 2, wherein: the telescopic structure comprises an upper screw fixed on the top plate and a lower screw fixed on the bottom plate, and the rotating directions of the upper screw and the lower screw are opposite; the telescopic structure further comprises a rotary sleeve for connecting the upper screw rod and the lower screw rod, and an upper thread section matched with the upper screw rod and a lower thread section matched with the lower screw rod are arranged in the rotary sleeve.

4. The crane leg box welding positioning device as claimed in claim 2 or 3, wherein: the supporting leg box is characterized in that a boss is arranged at one end, far away from the supporting leg box, of the top plate of the supporting seat, the boss is provided with a stop surface in stop fit with the corresponding side surface of the supporting leg box, and the boss forms an axial positioning bulge.

5. The crane leg box welding positioning device as claimed in claim 4, wherein: the boss sets up the one end that has the scarf at the landing leg case, it is provided with the pressure arm to hang through threaded fastener on the boss, the pressure arm has the crimping end that presses to landing leg case upper surface and the stiff end fixed with threaded fastener.

6. The crane leg box welding and positioning device as claimed in claim 5, wherein: the pressure arm is provided with a waist-shaped hole for the threaded fastener to penetrate through.

7. The crane leg box welding positioning device as claimed in claim 2 or 3, wherein: be equipped with the waist shape hole that extends with the direction of perpendicular to axis of rotation on the roof, still be provided with and form the bellied baffle of side direction location, wear to be equipped with in the waist shape hole and be used for with baffle fixed connection's threaded fastener, the baffle passes through threaded fastener and removes in order to realize on the roof along the adjustable of perpendicular to axis of rotation direction position in the waist shape hole.

8. The crane leg box welding positioning device as claimed in claim 1, 2 or 3, wherein: the positioning platform is provided with a fixing groove extending along the direction of the turning axis, a fixing piece moving along the turning axis is arranged in the fixing groove in a guiding mode, and one end, close to the fixing groove, of the supporting seat is fixedly connected with the fixing piece so as to achieve position adjustment in the direction of the turning axis.

9. The crane leg box welding and positioning device as claimed in claim 8, wherein: the cross-section of the fixing groove is T-shaped, and the fixing piece in the fixing groove is a T-shaped bolt.

10. The crane leg box welding positioning device as claimed in claim 1, 2 or 3, wherein: an auxiliary support used for supporting the middle part of the supporting leg box is further arranged between the two end supporting seats, and a lateral positioning bulge for positioning the supporting leg box on the positioning platform along the direction perpendicular to the axial direction of the supporting leg box is arranged on the auxiliary support.

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