阅读说明：本技术 一种宽叶片螺旋钻杆螺旋叶片自动焊接装置 (Automatic welding device for helical blade of wide-blade auger stem ) 是由 蒋开勇 张凌 田华均 李勇 田乐意 王军发 邱响林 李学忠 王志锦 阮绍刚 陈龙 于 2021-07-28 设计创作，主要内容包括：本发明属于钻杆焊接技术领域。涉及一种宽叶片螺旋钻杆螺旋叶片自动焊接装置,包括机座、主轴、尾座、浮动焊接装置、动力装置、控制系统；螺旋钻杆装夹于主轴与尾座之间,并在主轴驱动下旋转；所述动力装置、浮动焊接装置均与控制系统连接；所述主轴、浮动焊接装置均与动力装置连接,并受动力装置驱动,所述浮动焊接装置与螺旋钻杆的螺旋叶片浮动接触,所述浮动焊接装置与机座滑动连接,并在动力装置驱动下沿螺旋钻杆轴向移动。本发明通过滚轮与螺旋叶片接触来定位焊枪的位置,并在浮动弹簧的作用下,使滚轮在螺旋叶片的旋转过程中,始终与其保持接触旋转,使得焊枪与螺旋叶片的相对位置保持不变,保证了焊接一致性。(The invention belongs to the technical field of drill rod welding. Relates to an automatic welding device for a helical blade of a wide-blade auger stem, which comprises a machine base, a main shaft, a tailstock, a floating welding device, a power device and a control system; the spiral drill rod is clamped between the main shaft and the tailstock and is driven by the main shaft to rotate; the power device and the floating welding device are both connected with the control system; the main shaft and the floating welding device are connected with the power device and driven by the power device, the floating welding device is in floating contact with a helical blade of the auger stem, and the floating welding device is connected with the base in a sliding mode and moves axially along the auger stem under the driving of the power device. The invention positions the welding gun by contacting the roller with the helical blade, and the roller is always kept in contact with the helical blade to rotate in the rotating process of the helical blade under the action of the floating spring, so that the relative position of the welding gun and the helical blade is kept unchanged, and the welding consistency is ensured.)

1. The utility model provides a wide blade auger stem helical blade automatic welder which characterized in that: the device comprises a machine base, a main shaft, a tailstock, a floating welding device, a power device and a control system; the spiral drill rod is clamped between the main shaft and the tailstock and is driven by the main shaft to rotate; the power device and the floating welding device are both connected with the control system; the floating welding device comprises a welding gun, a universal joint assembly, a positioning roller assembly, a T-shaped groove flat plate, a first linear rail, a floating spring and a large sliding plate; the welding gun is fixedly arranged on the universal joint component, the universal joint component is detachably connected with a T-shaped groove flat plate, the positioning roller component is fixedly arranged on the T-shaped groove flat plate, and the T-shaped groove flat plate is connected with the first linear rail in a sliding manner; the first linear rail is arranged on the large sliding plate, the large sliding plate is connected with the machine base in a sliding mode, and the large sliding plate is connected with the power device and driven by the power device to move along the axial direction of the spiral drill rod; one end of the floating spring is fixedly connected with the large sliding plate, and the other end of the floating spring is connected with the T-shaped groove flat plate; the positioning roller assembly is positioned on one side of the helical blade and is in floating contact with the helical blade under the action of the floating spring, so that the distance between the welding gun and the helical blade is kept unchanged.

2. The wide-bladed auger stem screw blade automatic welding device of claim 1, wherein: a second linear rail is arranged on the first linear rail in a sliding manner; the second linear rail and the first linear rail are horizontally crossed; the T-shaped groove flat plate is connected with the second linear rail in a sliding manner; and the second linear rail is provided with a fixed plate, the floating spring is connected with the fixed plate, and the floating spring drives the second linear rail to slide on the first linear rail through the fixed plate.

3. The wide-bladed auger stem screw blade automatic welding device of claim 2, wherein: and the T-shaped groove flat plate is also connected with a power device, and the power device drives the T-shaped groove flat plate to slide on the second linear line rail.

4. The wide-bladed auger stem screw blade automatic welding device of claim 1, wherein: the roller assembly comprises an adjusting rod, a supporting frame and a roller for contacting and positioning the helical blade; the roller is arranged at one end of the adjusting rod and is rotationally connected with the adjusting rod; one end of the support frame is connected with the adjusting rod through threads, and the other end of the support frame is detachably connected with the T-shaped groove flat plate.

5. The wide-bladed auger stem screw blade automatic welding device of claim 1, wherein: the two welding guns are respectively arranged on two sides of the positioning roller assembly.

6. The wide-bladed auger stem screw blade automatic welding device of claim 2, wherein: and the T-shaped groove flat plate is also provided with a sliding block and is in sliding connection with the second linear line rail through the sliding block.

7. The wide-bladed auger stem screw blade automatic welding device of claim 2, wherein: the second linear rails are provided with a plurality of second linear rails which are arranged on the first linear rails in parallel.

Technical Field

The invention belongs to the technical field of drill rod welding, and relates to an automatic welding device for a helical blade of a wide-blade helical drill rod.

Background

At present, the welding of the helical blade of the wide-blade auger stem mainly depends on manual welding, the auger stem to be welded is arranged on a rotary support tool of a workbench, and the auger stem is manually rotated to carry out manual welding. The manual welding spiral blade tool has the following defects:

1) because the wide-blade spiral drill rod is manually and continuously welded, the welding labor intensity is high, and the welding efficiency is low;

2) the manual welding quality of the manually welded wide-blade spiral drill rod is difficult to ensure, so that various welding quality defects are easy to occur;

3) due to poor straightness of the wide-blade spiral drill rod, different width of the spiral blades and irregular change of a pitch value, a welding mask needs to be carefully observed during manual welding to adjust the welding position of a welding rod, so that the visual field of a welding bead is poor, and the welding seam is easy to be welded unevenly.

Disclosure of Invention

In view of this, the invention aims to solve the problems of low welding efficiency and poor quality of the existing wide-blade auger stem, and provides an automatic welding device for the helical blade of the wide-blade auger stem.

In order to achieve the purpose, the invention provides the following technical scheme:

an automatic welding device for a helical blade of a wide-blade auger stem comprises a base, a main shaft, a tailstock, a floating welding device, a power device and a control system; the spiral drill rod is clamped between the main shaft and the tailstock and is driven by the main shaft to rotate; the power device and the floating welding device are both connected with the control system; the floating welding device comprises a welding gun, a universal joint assembly, a positioning roller assembly, a T-shaped groove flat plate, a first linear rail, a floating spring and a large sliding plate; the welding gun is fixedly arranged on the universal joint component, the universal joint component is detachably connected with a T-shaped groove flat plate, the positioning roller component is fixedly arranged on the T-shaped groove flat plate, and the T-shaped groove flat plate is connected with the first linear rail in a sliding manner; the first linear rail is arranged on the large sliding plate, the large sliding plate is connected with the machine base in a sliding mode, and the large sliding plate is connected with the power device and driven by the power device to move along the axial direction of the spiral drill rod; one end of the floating spring is fixedly connected with the large sliding plate, and the other end of the floating spring is connected with the T-shaped groove flat plate; the positioning roller assembly is positioned on one side of the helical blade and is in floating contact with the helical blade under the action of the floating spring, so that the distance between the welding gun and the helical blade is kept unchanged.

Further, a second linear rail is arranged on the first linear rail in a sliding mode; the second linear rail and the first linear rail are horizontally crossed; the T-shaped groove flat plate is connected with the second linear rail in a sliding manner; and the second linear rail is provided with a fixed plate, the floating spring is connected with the fixed plate, and the floating spring drives the second linear rail to slide on the first linear rail through the fixed plate.

Furthermore, a power device is connected to the T-shaped groove flat plate and drives the T-shaped groove flat plate to slide on the second linear rail.

Further, the roller assembly comprises an adjusting rod, a supporting frame and a roller for contacting and positioning the helical blade; the roller is arranged at one end of the adjusting rod and is rotationally connected with the adjusting rod; one end of the support frame is connected with the adjusting rod through threads, and the other end of the support frame is detachably connected with the T-shaped groove flat plate. The height position of the roller is adjusted by the adjusting rod, the roller can be made of hard alloy materials, the service life is prolonged, and the positioning reliability is guaranteed.

Furthermore, the number of the welding guns is two, and the two welding guns are respectively arranged on two sides of the positioning roller component.

Further, a sliding block is further arranged on the T-shaped groove flat plate and is in sliding connection with the second linear line rail through the sliding block.

Furthermore, the second linear line rails are provided with a plurality of second linear line rails which are arranged on the first linear line rails in parallel.

The invention has the beneficial effects that:

1) according to the invention, the welding gun and the roller are adjusted to proper positions in advance, the roller is contacted with the helical blade to position the welding gun, and the roller is always kept in contact with the helical blade in the rotating process of the helical blade under the action of the floating spring, so that the relative position of the welding gun and the helical blade is kept unchanged, the welding consistency is ensured, and the welding quality is convenient to control.

2) The welding gun and the roller are fixed on the flat plate with the T-shaped groove, the flat plate with the T-shaped groove is pushed to horizontally move through the driving device, the rapid advance and retreat functions of the welding gun are realized, the wide-blade spiral drill rod rotates during welding, the floating welding device is driven by the large sliding plate to move towards the main shaft end, the roller is in floating contact with the side face of the spiral blade under the action of the floating spring, the two welding guns are driven to perform position floating compensation, and automatic floating welding is realized.

3) The invention avoids the phenomenon that the product quality is unstable due to the high and low welding technology level of the traditional manual welding helical blade, lightens the working strength of workers, and realizes the all-round adjustment of the welding gun in the vertical, horizontal, front and back directions and rotation.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.

Drawings

For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:

FIG. 1 is an overall schematic view of an automatic welding device for a helical blade of a wide-blade auger stem according to the invention;

FIG. 2 is a schematic view of a floating welding apparatus according to the present invention;

fig. 3 is an enlarged view of a portion a in fig. 2.

Reference numerals: 1-left welding gun; 2-a left gimbal assembly; 3-positioning a roller assembly; 4-a right welding gun; 5-a right gimbal assembly; 6-T-shaped groove flat plate; 7-a second linear track; 8, fixing a plate; 9-a slide block; 10-a first linear track; 11-a floating spring; 12-auger stem; 13-a cylinder; 14-large skateboard; 15-a main shaft; 16-a tailstock; 17-a stand; 18-a control system; 31-a roller; 32-adjusting rod; 33-support frame.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.

Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.

Referring to fig. 1 to 3, an automatic welding device for a helical blade of a wide-blade auger stem includes a base 17, a main shaft 15, a tail seat 16, a floating welding device, a driving motor, and a control system 18; the auger stem 12 is clamped between the main shaft 15 and the tailstock 16 and is driven by the main shaft 15 to rotate; the driving motor and the floating welding device are connected with a control system 18; the main shaft 15 and the floating welding device are both connected with a driving motor and driven by the driving motor, the floating welding device is in floating contact with a helical blade of the auger stem 12, the floating welding device is slidably mounted on the base 17 and connected with the driving motor through a screw rod, and the floating welding device moves axially along the auger stem 12 under the driving of the driving motor.

The floating welding device comprises a welding gun, a positioning roller assembly 3, a T-shaped groove flat plate 6, a first linear rail 10, a floating spring 11 and a large sliding plate 14; the positioning roller assembly 3 and the welding gun are both arranged on a T-shaped groove flat plate 6, and the T-shaped groove flat plate 6 is slidably arranged on a first linear rail 10; the first linear rail 10 is fixedly arranged on a large sliding plate 14, the large sliding plate 14 is slidably arranged on a machine base 17 and is connected with a screw rod, a side baffle is arranged on one side of the large sliding plate 14 close to a main shaft 15, one end of a floating spring 11 is fixedly arranged on the side baffle, and the other end of the floating spring is connected with a T-shaped groove flat plate 6; the positioning roller assembly 3 is positioned at one side of the helical blade and is contacted with the helical blade under the action of the floating spring 11, so that the distance between the welding gun and the helical blade is kept unchanged.

Two second linear rails 7 are arranged on the first linear rail 10 in parallel; the second linear track 7 and the first linear track 10 are arranged in a horizontal and orthogonal mode; the lower part of the T-shaped groove flat plate 6 is provided with a sliding block 9, and the sliding block 9 is in sliding fit with the second linear rail 7. The T-shaped groove flat plate 6 is connected with a second linear rail 7 in a sliding manner; the two second linear rails 7 are fixedly installed together through the fixing plate 8, the floating spring 11 is connected with a fastening screw fixedly installed at the bottom of the fixing plate 8, and the floating spring 11 drives the second linear rails 7 to slide on the first linear rails 10 through the fixing plate 8.

The T-shaped groove plate 6 is also connected with an air cylinder 13, and the air cylinder 13 drives the T-shaped groove plate to slide on the second linear line rail 7.

The roller 31 component comprises a roller 31, an adjusting rod 32 and a supporting frame 33; the roller 31 is rotatably installed at one end of the adjusting rod 32; one end of the supporting frame 33 is connected with the adjusting rod 32 through a thread, the other end of the supporting frame is installed on the T-shaped groove flat plate 6 through a clamping block, and the roller 31 is made of hard alloy.

The floating welding device further comprises a universal joint assembly used for adjusting the position of a welding gun, the welding gun is fixedly arranged on the universal joint assembly, and the universal joint assembly is arranged on the T-shaped groove flat plate 6 through a clamping block.

Wherein welder has two, is left welder 1, right welder 4 respectively, and left welder 1, right welder 4 install respectively on left universal joint subassembly 2, right universal joint subassembly 5, and left welder 1, right welder 4 set up in the both sides of location wheel components 3, through the gyro wheel 31 location back, and left welder 1, right welder 4 weld spiral blade both sides.

The working process of the embodiment: firstly, fixing a to-be-welded wide-blade spiral drill rod 12 between a main shaft 15 and a tailstock 16, respectively adjusting a left welding gun 1 and a right welding gun 4 to proper positions through a left universal joint component 2 and a right universal joint component 5, then fixing the left welding gun 1 and the right welding gun 4 on a T-shaped groove flat plate 6, applying a rightward horizontal pulling force on a fixing plate 8 to enable the left welding gun 1 and the right welding gun 4 to move on a first linear rail 10, stretching a floating spring 11 at the moment, starting a cylinder 13, enabling a roller 31 to be close to the spiral drill rod 12 and to be in contact with a spiral blade, then locking the left universal joint component 2 and the right universal joint component 5 according to the distance between the left welding gun 1 and the right welding gun 4 and the spiral blade, driving the spiral drill rod 12 to rotate under the drive of the main shaft 15 in the welding process, enabling the roller 31 to be always in contact with the spiral blade under the action of the floating spring 11, enabling the left welding gun 1 and the right welding gun 4 to automatically compensate the distance with the spiral blade and keep the same as the previously adjusted distance, meanwhile, the driving motor drives the large sliding plate 14 to move towards the end of the main shaft 15, and the floating welding device integrally moves, so that the automatic welding of the spiral drill rod 12 is realized.

Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.