CN114083087A

CN114083087A - Angle adjusting device for inner welding seam welding gun

Info

Publication number: CN114083087A
Application number: CN202111629596.8A
Authority: CN
Inventors: 邹欣家
Original assignee: Wuxi Yangtong Mechanical Equipment Co ltd
Current assignee: Wuxi Yangtong Mechanical Equipment Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-02-25

Abstract

The invention provides an angle adjusting device for an inner welding seam welding gun, which comprises a driving part, a worm and a turbine body, wherein the worm and the turbine body are driven by a longitudinally extending extension rod, a screw rod is fixed at the center of the turbine body, a nut on the screw rod is fixed on a lifting seat, two sides of the front end of the lifting seat are matched with a second guide pillar through guide grooves to transversely slide, and the second guide pillar is connected with a swing rod; the linear sliding rail is transversely arranged at the front end of the base, two groups of sliding seats are connected with the linear sliding rail in a sliding mode, a first guide pillar penetrates through the sliding seats in a guiding mode, a compression spring is sleeved outside the first guide pillar, the top end of the sliding seat is hinged with the swing rod through a fixed shaft, a welding gun seat is arranged on the front side of the other end of the swing rod, and two groups of side tracking press wheels are correspondingly and rotatably connected to the two groups of sliding seats and used for pressing two sides in a workpiece; one end of the welding gun swing seat is connected to the welding gun seat, and the other end of the welding gun swing seat is provided with the gun clamp.

Description

Angle adjusting device for inner welding seam welding gun

Technical Field

The invention relates to an adjusting device, in particular to an angle adjusting device for an inner welding seam welding gun.

Background

In the existing bridge building process, a prefabricated structural part is required to be manufactured, wherein U rib plates are welded to be an important part, an outer side single-side welding line process is adopted in an original welding process, the welding line penetration and the welding line strength of the welding line cannot meet the requirements in the using process, and therefore a new welding machine capable of adapting to inner seam welding is urgently required to be developed.

A welding gun posture adjusting device (with the publication number of CN110524093A) for a U-rib interior overhead welding system is used for adjusting the position of a welding gun for performing repair welding on a welding seam between a U-rib and a panel from the inside of the U-rib. The welding gun posture adjusting device is arranged on a traveling mechanism moving along the length direction of the U rib and comprises a welding gun pitching angle adjusting mechanism, a welding gun height adjusting mechanism and a welding gun transverse moving adjusting mechanism, wherein a welding gun is arranged on the welding gun pitching angle adjusting mechanism, the welding gun pitching angle adjusting mechanism is fixed on the welding gun height adjusting mechanism, and the welding gun height adjusting mechanism is fixed on the welding gun transverse moving adjusting mechanism. The welding gun posture adjusting device for the U-rib internal elevation welding system adopts independent driving to realize the angle, height and transverse movement adjustment of the welding gun, can be arranged at the tail end of various automatic welding devices, can realize the multi-dimensional accurate adjustment of the welding gun, but only needs to enter an inner welding space together with the welding gun due to the welding gun posture adjusting device (comprising a welding gun pitching angle adjusting mechanism, a welding gun height adjusting mechanism, a welding gun transverse moving adjusting mechanism, a supporting mechanism, a U-shaped groove, an angle adjusting driving mechanism, a welding gun seat, a screw rod seat, a gear and a rack) for realizing the angle adjustment, and can not realize the welding of the inner seam in the space as small as possible even if the welding gun pitching angle adjusting mechanism, the welding gun height adjusting mechanism, the welding gun transverse moving adjusting mechanism and the angle adjusting driving mechanism with small volume are adopted, and the equipment cost with small volume is also good, and therefore, is not suitable for on-site processing production and equipment replacement.

Disclosure of Invention

In order to solve the technical problems, the invention aims to provide an inner welding seam welding gun angle adjusting device which is low in equipment cost, convenient to produce and maintain later, and suitable for welding of small U-rib inner welding seams and inner welding operation of workpieces with narrow opening spaces.

The invention provides the following technical scheme:

an inner welding seam welding gun angle adjusting device comprises a base, a driving part, a worm, a screw rod, a lifting seat, a linear slide rail, a side tracking pinch roller and a welding gun swinging seat; the driving part is arranged at the tail end of the base and drives the worm to rotate through the lengthways extending lengthening rod, one side of the worm is connected with the turbine body in a matching and transmission mode, and the turbine body is installed on the base through the turbine fixing seat; the screw rod is fixed at the center of the turbine, a nut in threaded connection with the screw rod is fixed on the lifting seat and used for driving the lifting seat to lift, and transverse extension sections extend from the front end of the lifting seat towards two sides; the linear slide rail is transversely arranged at the front end of the base, two groups of sliding seats are connected with the linear slide rail in a sliding mode, a first guide pillar penetrates through the sliding seats in a guiding mode, a compression spring abutting between the two groups of sliding seats is sleeved outside the first guide pillar, an upright post bracket is arranged on the sliding seats, the top end of the upright post bracket is hinged to one end of the swing rod through a fixed shaft, a welding gun seat is arranged on the front side of the other end of the swing rod, a second guide pillar is arranged on the rear side of the other end of the swing rod, and a guide groove matched with the second guide pillar in a transverse sliding mode is formed in the transverse extension section of the linear slide rail; the two groups of side tracking pinch rollers are correspondingly and rotatably connected to the opposite ends of the two groups of sliding seats and are used for pressing the two sides of the workpiece under the propping and pressing of a compression spring; one end of the welding gun swing seat is connected to the welding gun seat and is locked and fixed through the locking hand wheel, and the other end of the welding gun swing seat is provided with a gun clamp used for clamping a gas shield welding gun.

Preferably, the driving part comprises a sector gear pair arranged at the tail end of the extension bar, the other end of the sector gear pair is connected with a hand wheel shaft, and the end part of the hand wheel shaft, which penetrates out of the side frame, is connected with a driving hand wheel.

Preferably, the base comprises a base body front section and a base body rear section, the tail end of the base body front section is fixedly connected with at least two groups of connecting rods, the base body rear section is provided with through holes for the connecting rods to pass through, and the tail end of the base body rear section is abutted against a locking nut for positioning the base body rear section; the extension bar comprises an extension front section, an extension section and an extension rear section which are sequentially matched in an inserting mode, the extension section is provided with at least one group, one end of the extension section is provided with a first positioning plug-in unit, the other end of the extension section is provided with a first positioning plug-in unit matched with the first positioning plug-in unit, the tail end of the extension front section is provided with a second positioning plug-in unit matched with the first positioning plug-in unit in an inserting mode, and the front end of the extension rear section is provided with a second positioning plug-in unit matched with the first positioning plug-in unit in a corresponding inserting mode.

Preferably, the connecting rod is in threaded connection with the tail end of the front section of the seat body.

Preferably, the first positioning insert and the second positioning insert are both cross-shaped inserts.

Preferably, the bottom of the base is provided with a travelling wheel.

Preferably, a connecting sleeve is arranged between the extension rod and the worm, and the connecting sleeve is connected with the extension rod and the worm in a matching way through a connecting flat key for transmission.

Preferably, the base is further provided with a guide rod for matching with the lifting seat for lifting and guiding.

Preferably, the two ends of the extension bar and the worm are arranged on the base through a bearing and a bearing seat frame, and one side of the bearing seat is also provided with a gland which is used for covering the end part of the extension bar to prevent dust from entering.

The invention has the beneficial effects that: when welding operation is required, the angle adjusting device can be pushed into a workpiece, the compression spring is compressed, the side tracking pinch roller presses the workpiece to play a role in tracking the side wall of the workpiece, the gun clamp can normally work after being adjusted to a proper position, when the angle of the gun clamp is required to be adjusted to adapt to the position of an inner welding seam, namely, when the angle of the welding gun is required to be adjusted in the welding process, only the hand wheel needs to be externally rotated, the lifting seat is driven to lift through the transmission of the sector gear pair, the worm and the turbine body, and then the transverse extension sections on two sides of the lifting seat drive the welding gun seat to move through the guide post II, and the welding gun seat is limited by the swing rod, the fixed shaft and the sliding seat, so that the welding gun seat can also perform transverse position adjustment along the guide groove while lifting, and the adjustment of the angle of the welding gun is completed. And in the accommodation process, owing to set up extension bar connection drive division, less volume of stretching into the work piece inner part, and the worm that the base front end set up, the lead screw, the lift seat, linear slide rail, the side tracking pinch roller, the cooperation of welder pendulum seat structure, thereby can further reduction is used for realizing the part volume of gas shield welder's angular adjustment, thereby realized not only reducing equipment cost, be convenient for production and later maintenance's purpose, and the interior seam welding operation in-process adaptability that is suitable for the welding of less U rib interior weld and has narrow and small opening space work piece is better, simultaneously owing to adopted the worm gear structure, certain auto-lock nature has, can not lead to the gas shield welder not hard up because of the shake of the walking in-process.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a front view of the structure of the present invention in embodiment 1;

FIG. 2 is a top view of the structure of the present invention in example 1;

FIG. 3 is a right side view of the structure of the present invention in embodiment 1;

FIG. 4 is a front view of the structure of the present invention in embodiment 2;

FIG. 5 is a top view of the structure of the present invention in example 2;

FIG. 6 is a right side view of the structure of the present invention in embodiment 2;

FIG. 7 is a schematic view of the structure of the elongated section;

FIG. 8 is a side view of the elongated section;

FIG. 9 is a partial schematic view of a tail structure of the base;

FIG. 10 is a top view of FIG. 9;

FIG. 11 is a schematic structural view of a driving part;

notation in the figure: 1. the welding gun comprises a base, 11 walking wheels, 2 extension bars, 21 sector gear pairs, 22 bearing blocks, 23 rolling bearings, 24 pressing covers, 25 hand wheel shafts, 26 hand wheels, 27 connecting sleeves, 28 connecting flat keys, 3 worms, 31 turbine bodies, 311 lead screws, 32 turbine fixing seats, 33 lifting seats, 34 guide rods, 35 screw nuts, 4 sliding seats, 41 linear sliding rails, 42 guide columns I, 43 compression springs, 44 swing rods, 441 welding gun seats, 442 guide columns II and 45 welding gun swinging seats, 451 locking hand wheels, 452 gun clamps, 453 air-shielded welding guns, 46 fixing shafts, 47 side tracking pressing wheels, 201 extension front sections, 202 extension sections, 203 extension rear sections, 204 positioning plug-ins I, 205 positioning slot I, 206 positioning socket front sections, 207 seat body rear sections, 208 connecting rods, 209 and locking nuts.

Detailed Description

Example 1

With reference to fig. 1-3 and 9-11, the inner welding seam welding gun angle adjusting device includes, in this embodiment, a base 1, a driving portion, a worm 3, a lead screw 311, a lifting seat 33, a linear slide rail 41, a side tracking pinch roller 47, and a welding gun swing seat 45; the driving part is arranged at the tail end of the base 1 and drives the worm 3 to rotate through the extension bar 2 extending longitudinally, one side of the worm 3 is in fit transmission connection with a turbine body 31, and the turbine body 31 is installed on the base 1 through a turbine fixing seat 32; the screw rod 311 is fixed at the center of the turbine body, a nut 35 in threaded connection with the screw rod is fixed on the lifting seat 33 and used for driving the lifting seat 33 to lift, and transverse extension sections respectively extend from the front end of the lifting seat 33 towards two sides; the linear slide rail 41 is transversely arranged at the front end of the base 1, two groups of sliding seats 4 are connected to the linear slide rail in a sliding mode, a first guide pillar 42 penetrates through the sliding seats 4 in a guiding mode, a compression spring 43 abutting against the two groups of sliding seats 4 is sleeved outside the first guide pillar 42, an upright post bracket is arranged on each sliding seat 4, the top end of each upright post bracket is hinged to one end of a swing rod 44 through a fixing shaft 46, a welding gun seat 441 is arranged on the front side of the other end of each swing rod 44, a second guide pillar 442 is arranged on the rear side of each other end of each swing rod 44, and a guide groove matched with the second guide pillar 442 in transverse sliding mode is formed in the transversely extending section; the two groups of side tracking pinch rollers 47 are correspondingly and rotatably connected to the opposite ends of the two groups of sliding seats 4 and used for pressing the two sides of the workpiece under the pushing of the compression springs 43; one end of the welding gun swing seat 45 is connected to the welding gun seat 441 and is locked and fixed through the locking hand wheel 451, and the other end of the welding gun swing seat is provided with a gun clamp 452 for clamping the gas shielded welding gun 453.

The driving part comprises a sector gear pair 21 arranged at the tail end of the extension bar 2, the other end of the sector gear pair 21 is connected with a hand wheel shaft 25, and the end part of the hand wheel shaft 25 penetrating out of the side frame is connected with a driving hand wheel 26.

The bottom of the base 1 is provided with road wheels 11.

A connecting sleeve 27 is arranged between the extension bar 2 and the worm 3, and the connecting sleeve 27 is connected with the extension bar 2 and the worm 3 through a connecting flat key 28 in a matching way for transmission.

The base 1 is further provided with a guide rod 34 for guiding the lifting base 33 to move up and down.

The two ends of the extension bar 2 and the worm 3 are arranged on the base 1 through a rolling bearing 23 and a bearing seat 22, and one side of the bearing seat 22 is also provided with a gland 24 which is used for covering the end part of the extension bar 2 and preventing dust from entering.

Example 2

With reference to fig. 4-11, in the present embodiment, the difference from embodiment 1 is that the base 1 includes a base body front section 206 and a base body rear section 207, the tail end of the base body front section 206 is fixedly connected with at least two sets of connecting rods 208, the base body rear section 207 is provided with a through hole for the connecting rod 208 to pass through, and the tail end of the base body rear section 207 abuts against a lock nut for positioning the base body rear section 207; the extension bar 2 comprises an extension front section 201, an extension section 202 and an extension rear section 203 which are sequentially matched in an inserting manner, the extension section 202 is provided with at least one group, one end of the extension section is provided with a first positioning plug-in unit 204, the other end of the extension section is provided with a first positioning slot 205 matched with the first positioning plug-in unit 204, the tail end of the extension front section 201 is provided with a second positioning slot 205 correspondingly matched with the first positioning plug-in unit 204 in an inserting manner, and the front end of the extension rear section 203 is provided with a second positioning plug-in unit correspondingly matched with the second positioning slot 205. The connecting rod 208 is connected with the tail end of the front section 206 of the seat body through a thread, and the first positioning plug-in 204 and the second positioning plug-in are both cross plug-ins. Therefore, the purpose of adjusting the driving length can be achieved by increasing the number of the lengthened sections 202 and correspondingly replacing the connecting rods 208 or screwing the locking nuts, so that the internal seam welding operation of workpieces with narrow opening spaces of different lengths can be adapted, and the adaptability is better.

The working principle of the invention is as follows: when welding operation is required, the angle adjusting device can be pushed into a workpiece, the compression spring 43 is compressed, the side tracking pinch roller 47 presses the workpiece to play a role of tracking the side wall of the workpiece, the gun clamp 452 can normally work after being adjusted to a proper position, and when the angle of the gun clamp 452 is required to be adjusted to adapt to the position of an inner welding seam, that is, when the angle of the welding gun needs to be adjusted when the welding gun is observed from the outside during the welding process, the hand wheel 26 only needs to be rotated from the outside, the lifting seat 33 is driven to lift through the transmission of the sector gear pair 21, the worm 3 and the turbine body 31, and the transversely extending sections on the two sides drive the welding gun seat 441 to move through the second guide pillar 442, and the welding gun seat 441 is limited by the swing rod 44, the fixed shaft 46 and the sliding seat 4, so that the welding gun seat 441 can be lifted and horizontally adjusted along the guide groove, and the angle of a welding gun is adjusted. And in the accommodation process, owing to set up extension bar 2 and connect the drive division, less volume of stretching into the work piece inner part, and the worm 3 that base 1 front end set up, lead screw 311, lift seat 33, linear slide rail 41, side tracking pinch roller 47, the cooperation of welder swing seat 45 structure, thereby the part volume that can further reduction is used for realizing the angular adjustment of gas shield welder 453, thereby realized not only reducing equipment cost, be convenient for production and later maintenance's purpose, and the interior seam welding operation in-process adaptability that is being suitable for the welding of less U rib interior weld and has narrow and small opening space work piece is better, simultaneously owing to adopted worm gear 3 structure, have certain auto-lock nature, can not lead to gas shield welder 453 to become flexible because of the shake in the walking process.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An inner welding seam welding gun angle adjusting device is characterized by comprising a base, a driving part, a worm, a screw rod, a lifting seat, a linear slide rail, a side tracking pinch roller and a welding gun swing seat;

the driving part is arranged at the tail end of the base and drives the worm to rotate through the lengthways extending lengthening rod, one side of the worm is connected with a turbine body in a matching transmission mode, and the turbine body is installed on the base through a turbine fixing seat;

the screw rod is fixed at the center of the turbine body, a nut in threaded connection with the screw rod is fixed on the lifting seat and used for driving the lifting seat to lift, and transverse extension sections extend out of the front end of the lifting seat towards two sides;

the linear sliding rail is transversely arranged at the front end of the base, two groups of sliding seats are connected onto the linear sliding rail in a sliding mode, a first guide pillar penetrates through the sliding seats in a guiding mode, a compression spring abutting against the two groups of sliding seats is sleeved outside the first guide pillar, an upright post bracket is arranged on the sliding seats, the top end of the upright post bracket is hinged to one end of the oscillating bar through a fixed shaft, a welding gun seat is arranged on the front side of the other end of the oscillating bar, a second guide pillar is arranged on the rear side of the other end of the oscillating bar, and a guide groove matched with the second guide pillar in a transverse sliding mode is formed in the transversely extending section;

the side tracking pinch rollers are provided with two groups, are correspondingly and rotatably connected to the opposite ends of the two groups of sliding seats and are used for pressing the two sides of the workpiece under the propping and pressing of the compression springs;

one end of the welding gun swing seat is connected to the welding gun seat and is locked and fixed through a locking hand wheel, and a gun clamp used for clamping a gas shield welding gun is arranged at the other end of the welding gun swing seat.

2. The inner seam welding gun angle adjusting device according to claim 1, wherein the driving part comprises a sector gear pair arranged at the tail end of the extension bar, the other end of the sector gear pair is connected with a hand wheel shaft, and the end of the hand wheel shaft penetrating out of the side frame is connected with a driving hand wheel.

3. The inner welding seam welding gun angle adjusting device according to claim 1, wherein the base comprises a seat body front section and a seat body rear section, at least two groups of connecting rods are fixedly connected to the tail end of the seat body front section, the seat body rear section is provided with through holes for the connecting rods to pass through, and the tail end of the seat body rear section is abutted with a locking nut for positioning the seat body rear section;

the extension bar is including pegging graft complex extension anterior segment, extension section and extension back end in proper order, the extension section is equipped with at least a set of, and its one end is provided with location plug-in components one, its other end be provided with location plug-in components one complex location slot one, the tail end of extension anterior segment be provided with location plug-in components one corresponds grafting complex location slot two, the front end of extension back end be provided with location slot one corresponds complex location plug-in components two.

4. The inner welding gun angle adjusting device according to claim 3, wherein the connecting rod is connected with the tail end of the front section of the seat body through a thread.

5. The inside welding gun angle adjusting device according to claim 3, wherein the first positioning insert and the second positioning insert are both cross-shaped inserts.

6. The inside seam welding gun angle adjusting device according to claim 1, wherein a walking wheel is arranged at the bottom of the base.

7. The inner welding gun angle adjusting device according to claim 1, wherein a connecting sleeve is arranged between the extension bar and the worm, and the connecting sleeve is in fit connection transmission with the extension bar and the worm through a connecting flat key.

8. The inner welding gun angle adjusting device according to claim 1, wherein the base is further provided with a guide rod for matching with the lifting seat for lifting and guiding.

9. The angle adjusting apparatus for an inside welding gun according to claim 1, wherein both ends of the extension bar and the worm are mounted on the base through a bearing and a bearing seat, and a pressing cover for covering an end of the extension bar to prevent dust from entering is further provided at one side of the bearing seat.