CN217412765U - Automatic surfacing robot for roll necks - Google Patents

Abstract

The utility model relates to the technical field of welding devices, in particular to an automatic bead welding robot for roll necks, which is characterized in that two three-jaw chucks are arranged to be matched with each other to clamp two ends of a roll neck, so that the roll neck to be bead welded is clamped, and the distance between an automatic welding gun and the roll neck can be adjusted by the electric expansion and contraction, so that the distance is suitable for self bead welding; the motor that is equipped with can drive the good roll neck of clamping and rotate for automatic welder can weld roll neck circumference, and under the cooperation of synchronizer and intermittent type device, automatic welder will be every to roll neck welding a week, and automatic welder will follow the distance that roll neck axial displacement set for, welds roll neck circumference once more afterwards, makes and to carry out the overlap joint between the adjacent welding orbit, and a welding orbit can be covered to hou mian welding orbit promptly, makes build-up welding quality improve greatly, the utility model discloses it is automatic higher, simple structure, the practicality is strong.

Description

Automatic surfacing robot for roll necks

Technical Field

The utility model relates to a welding set technical field, especially automatic build-up welding robot of roll neck.

Background

A roll is a part of a rolling mill that plastically deforms a metal being rolled. The shape, size and material of the roller are adapted to the rolling mill and the rolled product, the roller body is the working part of the roller, the roller neck is the part contacting with the bearing, and is connected with the transmission device by a joint. After the roll neck of the roll is damaged by external force, it is very important how to quickly repair the roll neck of the roll under a proper process without influencing the mechanical performance of the roll neck of the roll, and the general method is to weld the roll neck by overlaying.

However, in actual production, the cost of professional automatic overlaying equipment for the roll neck is too high, so manual overlaying is mainly performed in production, however, manual overlaying is generally low in efficiency, and manual overlaying easily damages the health of operators.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides an automatic bead welding robot for the roll neck, which adopts the technical proposal that the robot comprises a bottom plate arranged in the left and right directions and is characterized in that the left and right sides of the upper end of the bottom plate are respectively and fixedly connected with a supporting plate, two supporting plates are respectively and rotatably connected with a rotating shaft arranged transversely, two rotating shafts are arranged oppositely and are respectively and coaxially and fixedly connected with a three-jaw chuck, a transverse plate is fixedly connected between the two supporting plates, the lower end of the transverse plate is provided with a slideway arranged transversely, the two supporting plates are rotatably connected with a lead screw positioned below the transverse plate, the lead screw is in threaded connection with a slide block matched with the slideway in a transverse sliding way, the lower end of the slide block is fixedly connected with an electric telescopic rod arranged vertically, the lower end of the electric telescopic rod is a telescopic end and is fixedly connected with an automatic welding gun arranged vertically, and the left side of the upper end of the bottom plate is provided with a power device used for driving the rotating shaft of the corresponding side of the bottom plate, the left supporting plate is provided with an intermittent device for driving the lead screw to rotate intermittently, and the intermittent device further comprises a synchronizing device, and the intermittent device is linked with the power device through the synchronizing device.

Preferably, the power device comprises a motor fixedly connected to the bottom plate, an output shaft of the motor extends rightwards, and the left end of a rotating shaft on the left side extends leftwards to a supporting plate on the corresponding side of the rotating shaft and is connected with an output shaft of the motor through a flange.

Preferably, the intermittence device comprises a driven shaft which is connected with the left end of the left supporting plate in a rotating way and is transversely arranged, the driven shaft is coaxially and fixedly connected with a supporting plate, a fan-shaped groove is coaxially arranged on the supporting plate, a deflector rod which is positioned at the left side of the fan-shaped groove and is arranged along the radial direction of the fan-shaped groove is fixedly connected on the driven shaft, a short column which is transversely arranged is fixedly connected with the free end of the deflector rod, the left end of the screw rod extends out of the supporting plate at the corresponding side leftwards and is coaxially and fixedly connected with a special-shaped plate, the similar equilateral triangle of dysmorphism dish and its outer fringe face are formed by the arc structure end to end of three indent, three arc structure homoenergetic on the dysmorphism dish with supporting disk outer fringe face sliding fit, the arc length of the three arc structure of dysmorphism dish all is greater than the arc length of sector groove, set up three on the dysmorphism dish along its radial arrangement and be the spout of annular array about its axis, the short column insert in one of them spout and with this spout sliding fit.

Preferably, the synchronizing device comprises a lower belt wheel fixedly connected with the rotating shaft, the driven shaft is coaxially and fixedly connected with an upper belt wheel, and the upper belt wheel is connected with the lower belt wheel through a belt connected end to end.

Preferably, the welding tip of the automatic welding gun is positioned right above the axis of the rotating shaft.

The utility model has the advantages that:

the two three-jaw chucks are matched with each other to clamp two ends of the roll neck, so that the roll neck to be subjected to surfacing welding is clamped, the roll neck is convenient to be subjected to surfacing welding, and the distance between an automatic welding gun and the roll neck can be adjusted through electric expansion and contraction, so that the distance is suitable for self surfacing welding; the motor that is equipped with can drive the good roll neck of clamping and rotate for automatic welder can weld roll neck circumference, and under the cooperation of synchronizer and intermittent type device, automatic welder will be every to roll neck welding a week, and automatic welder will follow the distance that roll neck axial displacement set for, welds roll neck circumference once more afterwards, makes and to carry out the overlap joint between the adjacent welding orbit, and a welding orbit can be covered to hou mian welding orbit promptly, makes build-up welding quality improve greatly, the utility model discloses it is automatic higher, simple structure, the practicality is strong.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a perspective view of the first viewing angle of the present invention.

Fig. 3 is an enlarged view of the area a in the first perspective view of the present invention.

Fig. 4 is a partial three-dimensional cross-sectional view at a second viewing angle of the present invention.

Reference numerals

1. The welding machine comprises a base plate, 2 parts of a support plate, 3 parts of a rotating shaft, 4 parts of a three-jaw chuck, 5 parts of a transverse plate, 6 parts of a slide way, 7 parts of a lead screw, 8 parts of a slide block, 9 parts of an electric telescopic rod, 10 parts of an automatic welding gun, 11 parts of a motor, 12 parts of an output shaft, 13 parts of a driven shaft, 14 parts of a support plate, 15 parts of a fan-shaped groove, 16 parts of a driving lever, 17 parts of a short column, 18 parts of a special-shaped plate, 19 parts of an arc surface structure, 20 parts of a sliding groove, 21 parts of a lower belt wheel, 22 parts of an upper belt wheel and 23 parts of a belt.

Detailed Description

The following description of the present invention will be made in detail with reference to the accompanying drawings 1 to 4.

The two three-jaw chucks 4 can clamp two ends of the roll neck through mutual matching, so that the roll neck to be subjected to surfacing welding is clamped, the roll neck is convenient to be subjected to surfacing welding, and the distance between the automatic welding gun 10 and the roll neck can be adjusted through electric expansion and contraction, so that the distance is suitable for self surfacing welding; the motor 11 that is equipped with can drive the good roll neck of clamping and rotate for automatic welder 10 can weld roll neck circumference, and under the cooperation of synchronizer and intermittent type device, every pair roll neck welding a week of automatic welder 10, automatic welder 10 will follow the distance that roll neck axial displacement set for, later weld roll neck circumference once more, make and carry out the overlap joint between the adjacent welding orbit, the welding orbit at the back can cover a welding orbit promptly, makes build-up welding quality improve greatly, the utility model discloses it is automatic higher, simple structure, the practicality is strong.

When in use, the two ends of the roll neck are respectively matched with the two three-jaw chucks 4, so that the roll neck is fixed. And then, the electric telescopic rod 9 is controlled to extend or contract, and the distance between the welding nozzle of the welding gun of the automatic welding gun 10 and the roll neck is adjusted, so that the welding can be normally carried out. After the roll neck is clamped and the distance between the automatic welding gun 10 and the roll neck is adjusted, the automatic welding gun 10 is started, the motor 11 on the bottom plate 1 is started to rotate forwards at a low speed, the motor 11 drives the output shaft 12 to rotate at a low speed, the output shaft 12 of the motor 11 drives the rotating shaft 3, the three-jaw chuck 4 and the roll neck clamped by the three-jaw chuck 4 to rotate together, the roll neck rotates for a circle, and the automatic welding gun 10 completes one-time circumferential welding of the roll neck to form a circumferential welding track;

meanwhile, when the output shaft 12 of the motor 11 drives the rotating shaft 3 to rotate, the rotating shaft 3 on the left side drives the driven shaft 13 to rotate around the rotating connection part of the driven shaft and the supporting plate 2 through the matching of the lower belt wheel 21, the belt 23 and the upper belt wheel 22, the driven shaft 13 rotates for one circle every time the output shaft 12 of the motor 11 rotates for one circle, the driven shaft 13 drives the supporting plate 14 to rotate for one circle every time the driven shaft 13 rotates for one circle, the shifting lever 16 positioned on the left side of the fan-shaped groove 15 also rotates for one circle, in the process that the shifting lever 16 rotates for one circle, the short column 17 on the shifting lever 16 is separated from the sliding groove 20 matched with the shifting lever 16 and is matched with the other sliding groove 20, and the action that the short column 17 enters the other sliding groove 20 from one sliding groove 20 drives the special-shaped disc 18 to rotate for one hundred twenty degrees. In order to ensure that the special-shaped disc 18 can smoothly rotate one hundred twenty degrees, the arc lengths of three cambered structures 19 of the special-shaped disc 18 are all larger than the arc length of the fan-shaped groove 15, and the center line of each sliding groove 20 is respectively superposed with three radial lines of the special-shaped disc, so that the short column 17 can be always in sliding fit with the cambered structures 19 of the special-shaped disc without being influenced by the fan-shaped groove 15 when being separated from one sliding groove 20 to enter the other sliding groove 20, and the special-shaped disc 18 is kept not to move abnormally and further influence the change of the rotating angle thereof;

the special-shaped disc 18 rotates one hundred twenty degrees to drive the lead screw 7 to rotate one hundred twenty degrees, and the lead screw 7 rotates one hundred twenty degrees to drive the sliding block 8 to slide for a certain distance along the slide way 6 at the lower end of the transverse plate 5, namely the sliding block 8 moves for a certain distance along the axial direction of the roll neck.

In conclusion, each time the motor 11 rotates one circle, the roll neck rotates one circle, the automatic welding gun 10 forms one circumferential welding track for the roll neck, simultaneously, under the coordination of the synchronous rotating shaft 3 and the intermittent device, the motor 11 rotates one hundred twenty degrees for each circle, the lead screw 7 rotates one hundred twenty degrees, the slide block 8 and the automatic welding gun 10 fixedly connected below the slide block 8 through the electric telescopic rod 9 move a certain distance along the axial direction of the roll neck, after the automatic welding gun 10 moves a certain distance, the automatic welding gun 10 rotates one circle again along with the motor 11, the automatic welding gun 10 forms one circumferential welding track for the roll neck again, the certain distance along the axial direction of the roll neck can be controlled by setting the thread pitch of the lead screw 7, the distance is required to ensure that the newly formed circumferential welding track on the roll neck can be overlapped with a half of the one circumferential welding track, i.e. the newly formed welding track may cover half of the last welding track. The overlapping covering mode can greatly improve the quality of surfacing, and after surfacing is finished, further polishing and other treatments can be carried out. The further motor 11 rotates forward to drive the slide block 8 to move rightwards along the slide way 6 through the synchronous device matched with the intermittent device, and meanwhile, the automatic welding gun 10 moves rightwards along the axial direction of the roll neck; the corresponding motor 11 reversing direction will cause the automatic welding gun 10 to move axially to the left along the roll neck.

Claims (5)

1. The automatic surfacing robot for the roll necks comprises a bottom plate (1) arranged in the left and right directions, and is characterized in that the left and right sides of the upper end of the bottom plate (1) are fixedly connected with supporting plates (2) respectively, two supporting plates (2) are rotatably connected with transversely arranged rotating shafts (3) respectively, the two rotating shafts (3) are oppositely arranged, the opposite ends of the two rotating shafts (3) are coaxially and fixedly connected with three-jaw chucks (4) respectively, a transverse plate (5) is fixedly connected between the two supporting plates (2), a transversely arranged slide way (6) is arranged at the lower end of the transverse plate (5), a lead screw (7) positioned below the transverse plate (5) is rotatably connected with the two supporting plates (2), the lead screw (7) is in threaded connection with a slide block (8) in transverse sliding fit with the slide way (6), a vertically arranged electric telescopic rod (9) is fixedly connected at the lower end of the slide block (8), and an automatic welding gun (10) which is vertically arranged is fixedly connected at the lower end of the electric telescopic rod (9), the power device used for driving the corresponding side rotating shaft (3) of the bottom plate (1) is installed on the left side of the upper end of the bottom plate, the intermittent device used for driving the lead screw (7) to intermittently rotate is arranged on the supporting plate (2) on the left side of the bottom plate, and the intermittent device further comprises a synchronizing device, and the intermittent device is linked with the power device through the synchronizing device.

2. The automatic bead welding robot for the roll necks according to the claim 1, wherein the power device comprises a motor (11) fixedly connected to the bottom plate (1), an output shaft (12) of the motor (11) extends rightward, and the left end of the rotating shaft (3) on the left side extends leftward out of a supporting plate (2) on the corresponding side and is in flange connection with the output shaft (12) of the motor (11).

3. The roll neck automatic surfacing welding robot according to claim 1, wherein the intermittent device comprises a driven shaft (13) which is connected with the left end of a left supporting plate (2) in a rotating manner and is transversely arranged, the driven shaft (13) is coaxially and fixedly connected with a supporting plate (14), a fan-shaped groove (15) is coaxially formed in the supporting plate (14), a driving lever (16) which is positioned on the left side of the fan-shaped groove (15) and is radially arranged along the fan-shaped groove is fixedly connected to the driven shaft (13), a transversely arranged short column (17) is fixedly connected to the free end of the driving lever (16), the left end of a lead screw (7) extends out of the supporting plate (2) on the corresponding side leftwards and is coaxially and fixedly connected with a special-shaped plate (18), the special-shaped plate (18) is similar to an equilateral triangle, the outer edge surface of the special-shaped plate is formed by connecting three concave arc-shaped structures (19) end to end, and the three arc-shaped structures (19) on the special-shaped plate (18) can be in sliding fit with the outer edge surface of the supporting plate (14), the arc length of three cambered surface structures (19) of the special-shaped disc (18) is larger than that of the fan-shaped groove (15), three sliding grooves (20) which are arranged along the radial direction of the special-shaped disc (18) and are in annular array relative to the axis of the special-shaped disc are formed in the special-shaped disc (18), and the short column (17) is inserted into one sliding groove (20) and is in sliding fit with the sliding groove (20).

4. The automatic bead welding robot for the roll necks according to the claim 1, wherein the synchronizing device comprises a lower belt wheel (21) fixedly connected with the rotating shaft (3), an upper belt wheel (22) is coaxially and fixedly connected with the driven shaft (13), and the upper belt wheel (22) is connected with the lower belt wheel (21) through a belt (23) in an end-to-end connection mode.

5. The automatic bead welding robot according to claim 1, wherein the tip of the automatic welding gun (10) is located directly above the axis of the rotating shaft (3).

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