Cylindrical container circumferential weld back gouging device

Abstract

The invention relates to the technical field of back gouging, and provides a cylindrical container circumferential weld back gouging device. The cylindrical container circumferential weld back gouging device comprises a milling cutter and a driving assembly used for driving the milling cutter to rotate and further comprises a rack, a fixing plate, a first sliding plate, a second sliding plate and a cylinder diameter tracking mechanism, the fixing plate is arranged at the top of the rack, and the first sliding plate is slidably arranged at the top of the fixing plate; the second sliding plate is slidably arranged at the top of the first sliding plate, the sliding direction of the first sliding plate is perpendicular to the sliding direction of the second sliding plate, the milling cutter and the driving assembly thereof are arranged at one end of the top of the second sliding plate, and the barrel diameter tracking mechanism is fixedly arranged on one side of the milling cutter in the axial direction and used for abutting against a barrel. And the displacement change is generated according to the diameter change of the barrel, so that the distance from the milling cutter to the barrel is adjusted according to the displacement variation. The present invention can be applied to a cylindrical container having ovality.

Description

Technical Field

[0001] The invention relates to the technical field of root cleaning, and in particular to a root cleaning device for a cylindrical container girth weld. Background Art

[0002] Root cleaning refers to the removal of root defects of the reverse side weld after the base weld is completed for full penetration welds formed by double-sided welding with higher quality requirements.

[0003] For the root cleaning of the girth weld of a cylindrical container, the cylindrical container is clamped by a tool, a root cleaning device is set on one side of the cylindrical container (root cleaning is performed by a milling cutter, a file, a grinding wheel, etc.), and the root cleaning of the girth weld is completed after the cylindrical container rotates one circle. However, the cross-section of the cylinder of some cylindrical containers is not a standard circle, but has a certain ellipticity, and the existing root cleaning device is difficult to adapt to the change of the cylinder ellipticity. Summary of the invention

[0004] The object of the present invention is to provide a root cleaning device for the girth weld of a cylindrical container to solve the above-mentioned defects of the prior art.

[0005] The present invention is achieved through the following technical solutions:

[0006] A root cleaning device for annular welds of a cylindrical container includes a milling cutter and a driving assembly for driving the milling cutter to rotate, and also includes a frame, a fixed plate, a first slide plate, a second slide plate and a cylinder diameter tracking mechanism. The fixed plate is arranged on the top of the frame, the first slide plate is slidably arranged on the top of the fixed plate, the second slide plate is slidably arranged on the top of the first slide plate, and the sliding direction of the first slide plate is perpendicular to the sliding direction of the second slide plate. The milling cutter and its driving assembly are arranged on one end of the top of the second slide plate. The cylinder diameter tracking mechanism is fixedly arranged on one side of the axial direction of the milling cutter, and is used to abut against the cylinder, generate a displacement change according to the diameter change of the cylinder, and adjust the distance from the milling cutter to the cylinder according to the displacement change.

[0007] Optionally, the cylinder diameter tracking mechanism includes a contact roller, a guide rod, a sleeve, a spring and a scale. The sleeve is fixedly arranged on the second slide plate or the housing of the drive assembly. The guide rod is inserted into the sleeve and one end extends out of the sleeve. The contact roller is arranged at the outer end of the guide rod. A stop block is provided at the inner end of the guide rod. The spring is arranged in the sleeve. One end of the spring is abutted against an end of the sleeve away from the contact roller, and the other end of the spring is abutted against the stop block. The scale is arranged at the top of the sleeve. The guide rod is provided with a pointer extending out of the top of the sleeve for indicating the scale on the scale.

[0008] Optionally, the cylinder diameter tracking mechanism is a self-resetting electronic ruler.

[0009] Optionally, a laser pen for indicating the position of the weld is provided above or below the milling cutter.

[0010] Optionally, a mounting bracket is fixedly connected to the top of the second slide plate, a pen holder is fixedly provided on the mounting bracket, and the laser pen is installed in the pen holder.

[0011] Optionally, the pen holder includes a ball seat, a sphere and a pressure cap, one end of the ball seat is fixedly connected to the mounting bracket, the other end of the ball seat is provided with a ball hole, the sphere is rotatably arranged in the ball hole, the pressure cap is connected to the ball seat by a threaded connection for pressing the sphere, the sphere is provided with a mounting hole, and the laser pen is inserted into the mounting hole.

[0012] Optionally, a height adjustment component for adjusting the height of the milling cutter is provided between the fixing plate and the frame.

[0013] Optionally, the height adjustment component includes a jack, which is fixed on the frame, and the top of the jack is movably hinged to one end of a fixed plate close to the milling cutter, and the other end of the fixed plate is fixedly hinged to the frame.

[0014] Optionally, the top head of the jack is fixedly connected to a lower connecting seat, which is provided with a first supporting shaft, the bottom of the fixed plate is fixedly connected to an upper connecting seat, which is provided with a second supporting shaft, and a connecting plate is provided between the upper connecting seat and the lower connecting seat, the upper end of the connecting plate is sleeved on the second supporting shaft, and the lower end of the connecting plate is sleeved on the first supporting shaft.

[0015] Optionally, a first screw-nut mechanism for adjusting the position of the first slide plate is provided on the fixed plate, and a second screw-nut mechanism for adjusting the position of the second slide plate is provided on the first slide plate.

[0016] The technical solution of the present invention has at least the following advantages and beneficial effects: in the present invention, the sliding direction of the first slide plate is perpendicular to the sliding direction of the second slide plate, so that in practical applications, the position of the milling cutter in the axial direction of the cylindrical container can be adjusted to locate the root cleaning position; the distance from the milling cutter to the side wall of the cylindrical container can also be adjusted according to the diameter of the cylindrical body, and a cylindrical body diameter tracking mechanism is provided, which can produce a displacement change according to the diameter change of the cylindrical body of the cylindrical container, thereby facilitating the accurate adjustment of the distance from the milling cutter to the side wall of the cylindrical container according to the displacement change, so that the present invention can be applied to cylindrical containers with ellipticity. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A front view of a root cleaning device for a cylindrical container girth weld provided by the present invention;

[0018] Figure 2 A left side view of a root cleaning device for a cylindrical container girth weld provided by the present invention;

[0019] Figure 3 It is a structural schematic diagram of the cylinder diameter tracking mechanism;

[0020] Figure 4 It is a structural schematic diagram of the pen holder;

[0021] Figure 5 for Figure 2 A in the enlarged view;

[0022] Figure markings: 1-frame, 101-castor, 2-milling cutter, 3-fixed plate, 4-first slide plate, 5-second slide plate, 6-cylinder diameter tracking mechanism, 601-contact roller, 602-guide rod, 603-sleeve, 604-spring, 605-scale, 606-pointer, 7-laser pen, 8-pen holder, 801-ball seat, 802-sphere, 803-pressure cover, 9-mounting bracket, 10-jack, 11-lower connecting seat, 12-first supporting shaft, 13-upper connecting seat, 14-second supporting shaft, 15-connecting plate. DETAILED DESCRIPTION

[0023] refer to Figure 1 and Figure 2 A device for cleaning the root of a cylindrical container girth weld includes a milling cutter 2 and a driving assembly for driving the milling cutter 2 to rotate. Specifically, a driving shaft is connected to the center of the milling cutter 2. The driving assembly can be a motor that drives the driving shaft to rotate through a belt reduction transmission, or a motor that drives the driving shaft to rotate through a gear reduction box. In actual application, the axis of the driving shaft is parallel to the axis of the cylindrical container to be cleaned, and the outer periphery of the milling cutter 2 is directly opposite to the cleaning position.

[0024] The root cleaning device also includes a frame 1, a fixing plate 3, a first slide plate 4, a second slide plate 5 and a cylinder diameter tracking mechanism 6.

[0025] The fixed plate 3 is arranged on the top of the frame 1, the first slide plate 4 is slidably arranged on the top of the fixed plate 3, the second slide plate 5 is slidably arranged on the top of the first slide plate 4, the milling cutter 2 and its driving assembly are arranged at one end of the top of the second slide plate 5, and the sliding direction of the first slide plate 4 is perpendicular to the sliding direction of the second slide plate 5, so that the milling cutter 2 can adjust its position in two mutually perpendicular directions, that is, when working, the position of the milling cutter 2 in the axial direction of the cylindrical container can be adjusted to locate the root cleaning position; the distance from the milling cutter 2 to the side wall of the cylindrical container can also be adjusted according to the diameter of the cylinder.

[0026] As an option, the fixed plate 3 is provided with a first screw nut mechanism for adjusting the position of the first slide plate 4, and the first slide plate 4 is provided with a second screw nut mechanism for adjusting the position of the second slide plate 5. In practical applications, the first screw nut mechanism and the second screw nut mechanism can also be connected to a motor to automatically adjust the position of the milling cutter 2. It should be understood that in other embodiments, the sliding of the first slide plate 4 and the second slide plate 5 can of course be achieved in other ways.

[0027] The barrel diameter tracking mechanism 6 is fixedly arranged on one side of the milling cutter 2 in the axial direction, and is used to abut against the barrel, and produce displacement changes according to the diameter change of the barrel, so as to facilitate accurate adjustment of the distance from the milling cutter 2 to the side wall of the cylindrical container according to the displacement change, that is, the present invention can be applied to the cylindrical container with an elliptical barrel. As an option, the specific structure of the barrel diameter tracking mechanism 6 of this embodiment is as follows, with reference to Figure 3 The cylinder diameter tracking mechanism 6 includes a contact roller 601, a guide rod 602, a sleeve 603, a spring 604 and a scale 605. The sleeve 603 is fixedly arranged on the housing of the drive assembly or the drive assembly (of course, it can also be fixedly arranged on the second slide plate 5). The guide rod 602 is penetrated in the cylinder and one end extends out of the sleeve 603. The contact roller 601 is arranged at the outer end of the guide rod 602, and a stopper is provided at the inner end of the guide rod 602. The spring 604 is arranged on the inner part of the sleeve 603, one end of the spring 604 is against the end of the sleeve away from the contact roller 601, and the other end of the spring 604 is against the stopper. The scale 605 is arranged at the top of the sleeve 603, and a pointer 606 extending out of the top of the sleeve 603 is provided on the guide rod 602 (it should be understood that a avoidance groove for avoiding the pointer 606 is provided at the top of the sleeve 603) for indicating the scale on the scale 605. In actual application, the distance between the milling cutter 2 and the cylinder is adjusted. At this time, the contact roller 601 contacts the side wall of the cylinder and the spring 604 is compressed. At this time, the scale indicated by the pointer 606 is recorded as the initial scale. When cleaning the root, the cylinder rotates slowly. If the scale changes, the position of the milling cutter 2 is adjusted so that the scale always remains at the above initial scale, which can adapt to the diameter change of the cylinder and ensure the quality of root cleaning.

[0028] A laser pen 7 for indicating the position of the weld is provided below the milling cutter 2 (of course, it can also be provided above the milling cutter 2 in other embodiments). It is easy to understand that the laser pen 7 is also called a laser pointer, which emits a light beam to form a light spot at the target position. Preferably, the laser pen 7 is a type that emits red light. It is worth noting that the laser pen 7 is provided to form a light spot at the weld position to indicate the root cleaning position. During the root cleaning process, if the light spot is offset, the position of the milling cutter 2 is adjusted in time to ensure the quality of the root cleaning.

[0029] In this embodiment, the specific installation method of the laser pen 7 is as follows: a mounting bracket 9 is fixedly connected to the top of the second slide plate 5, a pen holder 8 is fixedly provided on the mounting bracket 9, and the laser pen 7 is installed in the pen holder 8. Figure 4The pen holder 8 includes a ball seat 801, a ball body 802 and a pressure cap 803. One end of the ball seat 801 is fixedly connected to the mounting bracket 9. The other end of the ball seat 801 is provided with a ball hole. The ball body 802 is rotatably arranged in the ball hole. The pressure cap 803 is connected to the ball seat 801 by threads and is used to press the ball body 802. The ball body 802 is provided with a mounting hole, and the laser pen 7 is inserted in the mounting hole. It is worth noting that such a setting enables the irradiation position of the laser pen 7 to be adjusted by rotating the ball head, which is convenient for adjusting the irradiation direction of the laser pen 7 and making it more convenient to make the light spot fall on the weld position. After adjustment, tighten the pressure cap 803 to fix the ball head.

[0030] In the present embodiment, a height adjustment component for adjusting the height of the milling cutter 2 is provided between the fixed plate 3 and the frame 1, that is, for adjusting the height of the milling cutter 2, which is convenient for practical use of cylindrical containers of different diameters. As a choice, the height adjustment component of the present embodiment includes a jack 10, the jack 10 is fixedly arranged on the frame 1, the top of the jack 10 is movably hinged with one end of the fixed plate 3 close to the milling cutter 2, and the other end of the fixed plate 3 is fixedly hinged with the frame 1. When in use, the milling cutter 2 can be rotated downward or upward by the extension and contraction of the top of the jack 10, so as to adjust its height. It is worth noting that the use of the jack 10 to adjust the height is not only self-locking, but also simple to control and operate, and has high accuracy. In other embodiments, other conventional lifting mechanisms in the art can also be used to achieve the height adjustment of the milling cutter 2.

[0031] As an option, the head of the jack 10 in this embodiment is hinged to the fixing plate 3 in the following manner: Figure 5 , the top of the jack 10 is fixedly connected with a lower connecting seat 11, and the lower connecting seat 11 is provided with a first supporting shaft 12, the bottom of the fixed plate 3 is fixedly connected with an upper connecting seat 13, and the upper connecting seat 13 is provided with a second supporting shaft 14, and a connecting plate 15 is provided between the upper connecting seat 13 and the lower connecting seat 11, and the upper end of the connecting plate 15 is sleeved on the second supporting shaft 14, and the lower end of the connecting plate 15 is sleeved on the first supporting shaft 12. It is easy to understand that in other embodiments, the way in which the top of the jack 10 is movably hinged to the fixed plate 3 can certainly adopt other forms, for example, a slide groove is provided on the fixed plate 3, and a sliding hinge rod is provided in the slide groove, and the top of the jack 10 is rotatably connected to the sliding hinge rod. In this embodiment, the specific way in which the other end of the fixed plate 3 is fixedly hinged to the frame 1 is not limited, for example, a hinge shaft is rotatably provided on the fixed plate 3, and the hinge shaft is also penetrated on the frame 1.

[0032] In addition, in practical applications, casters 101 may be provided at the bottom of the frame 1 to facilitate the transfer of the root cleaning device. Specifically, two universal casters 101 and two fixed casters 101 may be provided.

[0033] Example 2

[0034] The difference between this embodiment and embodiment 1 is that the specific structure of the cylinder diameter tracking mechanism 6 is different. The cylinder diameter tracking mechanism 6 of this embodiment is a self-resetting electronic ruler. It should be understood that the electronic ruler is an electronic component used to measure the displacement, also called a displacement sensor, which can be purchased directly from the market, such as Gefran's PY-2 self-resetting displacement sensor, equipped with a digital display. When used in the present invention, its measuring rod is against the side wall of the cylinder, the reset element is compressed, and the cylinder diameter becomes smaller. When the reset element is extended and the cylinder diameter becomes larger, the reset element is further compressed, and the position of the milling cutter 2 is adjusted according to the specific displacement change. In addition, when the first slider and the second slider are adjusted by the rotation of the motor to achieve the position adjustment, a control system can also be configured to automatically control the motor operation according to the displacement change of the electronic ruler to achieve automatic adjustment.

[0035] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A root cleaning device for a cylindrical container girth weld, comprising a milling cutter and a driving assembly for driving the milling cutter to rotate, characterized in that: It also includes a frame, a fixed plate, a first slide, a second slide and a cylinder diameter tracking mechanism. The fixed plate is arranged on the top of the frame, the first slide can be slidably arranged on the top of the fixed plate, the second slide can be slidably arranged on the top of the first slide, and the sliding direction of the first slide is perpendicular to the sliding direction of the second slide. The milling cutter and its driving assembly are arranged at one end of the top of the second slide. The cylinder diameter tracking mechanism is fixedly arranged on one side of the axial direction of the milling cutter, which is used to resist the cylinder and generate displacement changes according to the diameter changes of the cylinder, so as to adjust the distance from the milling cutter to the cylinder according to the displacement change.

2. The root cleaning device for cylindrical container girth weld according to claim 1 is characterized in that: The cylinder diameter tracking mechanism includes a contact roller, a guide rod, a sleeve, a spring and a scale. The sleeve is fixedly arranged on the second slide plate or the housing of the driving assembly. The guide rod is inserted into the sleeve and one end extends out of the sleeve. The contact roller is arranged at the outer end of the guide rod. A stopper is provided at the inner end of the guide rod. The spring is arranged in the sleeve. One end of the spring abuts against an end of the sleeve away from the contact roller, and the other end of the spring abuts against the stopper. The scale is arranged at the top of the sleeve. The guide rod is provided with a pointer extending out of the top of the sleeve for indicating the scale on the scale.

3. The root cleaning device for cylindrical container girth weld according to claim 1 is characterized in that: The cylinder diameter tracking mechanism is a self-resetting electronic ruler.

4. The cylindrical container girth weld root cleaning device according to claim 1 is characterized in that: A laser pen for indicating the position of the welding seam is arranged above or below the milling cutter.

5. The root cleaning device for cylindrical container girth weld according to claim 4 is characterized in that: The top of the second slide plate is fixedly connected with a mounting bracket, a pen holder is fixedly arranged on the mounting bracket, and the laser pen is mounted in the pen holder.

6. The root cleaning device for cylindrical container girth weld according to claim 5, characterized in that: The pen holder includes a ball seat, a sphere and a pressure cover. One end of the ball seat is fixedly connected to the mounting bracket, and the other end of the ball seat is provided with a ball hole. The sphere is rotatably arranged in the ball hole. The pressure cover is connected to the ball seat by threads for pressing the sphere. The sphere is provided with a mounting hole, and the laser pen is inserted into the mounting hole.

7. The cylindrical container girth weld root cleaning device according to any one of claims 1 to 6, characterized in that: A height adjustment component for adjusting the height of the milling cutter is provided between the fixing plate and the frame.

8. The root cleaning device for cylindrical container girth weld according to claim 7, characterized in that: The height adjustment component comprises a jack, which is fixed on the frame. The top of the jack is movably hinged to one end of a fixing plate close to the milling cutter, and the other end of the fixing plate is fixedly hinged to the frame.

9. The cylindrical container girth weld root cleaning device according to claim 8, characterized in that: The top of the jack is fixedly connected to a lower connecting seat, and the lower connecting seat is provided with a first supporting shaft. The bottom of the fixed plate is fixedly connected to an upper connecting seat, and the upper connecting seat is provided with a second supporting shaft. A connecting plate is provided between the upper connecting seat and the lower connecting seat, and the upper end of the connecting plate is sleeved on the second supporting shaft, and the lower end of the connecting plate is sleeved on the first supporting shaft.

10. The cylindrical container girth weld root cleaning device according to any one of claims 1 to 6, characterized in that: The fixing plate is provided with a first screw nut mechanism for adjusting the position of the first slide plate, and the first slide plate is provided with a second screw nut mechanism for adjusting the position of the second slide plate.

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