CN112775607A - Turnover device and turnover welding equipment - Google Patents

Abstract

The invention discloses a turnover device and turnover welding equipment, wherein the turnover device comprises a movable frame, a turnover frame and a power component, wherein the movable frame can move, the turnover frame is rotatably arranged on the movable frame, and the power component drives the turnover frame to turn over; the overturning frame comprises an L-shaped structure consisting of a bottom arm and a vertical arm; the movable frame is arranged to drive the turnover frame to move to the position that the bottom arm extends into the bottom of the workpiece, the power component can drive the turnover frame bearing the workpiece to turn over from a first state to a second state towards the side with the upright arm, and the turnover frame can turn over from the second state back to the first state to release the workpiece. By adopting the technical scheme provided by the invention, the turnover of a large-sized workpiece can be easily realized, and the turnover device has the advantages of labor saving, good safety, low cost and the like.

Description

Turnover device and turnover welding equipment

Technical Field

The invention relates to the field of part processing, in particular to a turnover device and turnover welding equipment.

Background

In the prior art, large-scale buildings often use a large amount of steel structural sections, such as H-shaped steel, I-shaped steel, square tubes and the like, the length and the height are large, the weight is heavy, a plurality of small plates are often required to be welded on two sides of a steel beam for strengthening or other functions, a vertical welding method is not ideal, horizontal welding is often required to be adopted, the welding surface is upward and is close to horizontal, and the steel beam is overturned to make the other surface upward after welding.

For the upset of realizing the girder steel, the technique that adopts at present mainly is to embrace the back upset with the girder steel both ends, and concrete step is: the steel beam is lifted or hoisted, two ends of the steel beam respectively extend into the card loading mechanism nest, the steel beam is locked from multiple directions, the steel beam is surrounded in the mechanism, and then the steel beam is driven to turn. However, this method has the following problems:

firstly, the encircling clamping mechanism is large, the operation difficulty of lifting or hoisting a steel beam and extending two ends of the steel beam into the clamping mechanism is high, the clamping mechanism can be damaged by collision due to unstable hoisting, and if manual participation is long, the labor is consumed, and potential safety hazards exist; if automatic loading is adopted, the mechanism is huge, namely an unmanned crane is used, an unmanned rope is hung and is unwound, and two ends of the rope are aligned to extend into the clamping mechanism respectively, so that the difficulty is high.

Secondly, stretch into dress card mechanism back when the girder steel both ends, the second step is the locking girder steel, and four face fixings about the upper and lower of girder steel just can guarantee that the girder steel is not hard up, and this work load is also bigger, and every end of girder steel all has 3 ~ 4 locking device talent to go, and a plurality of electronic locking mechanism synchronous operation are too complicated, invest in many.

And thirdly, the locking force is not well mastered, the locking device is damaged if the locking force is too tight, the friction force is insufficient if the locking force is not tight, and the sliding dislocation occurs in the overturning process, so that the processing dislocation is caused.

In addition, when processing is accomplished, loosen several sets of clamping device again, hoist and mount or lift out the girder steel, whole process is wasted time and energy, inefficiency, and the security is poor.

Therefore, how to overturn a large and heavy steel beam in a time-saving and labor-saving manner is a technical problem which needs to be solved urgently at present.

Disclosure of Invention

The invention aims to provide a turnover device and turnover welding equipment to solve the problem that the steel beam with larger size and weight is difficult to turn over at present.

In order to achieve the above object, the present invention provides a turnover device, comprising a movable frame, a turnover frame rotatably mounted on the movable frame, and a power component for driving the turnover frame to turn over; the overturning frame comprises an L-shaped structure consisting of a bottom arm and a vertical arm;

the movable frame is arranged to drive the turnover frame to move to the position that the bottom arm extends into the bottom of the workpiece, the power component can drive the turnover frame bearing the workpiece to turn over from a first state to a second state towards the side with the upright arm, and the turnover frame can turn over from the second state back to the first state to release the workpiece.

Preferably, the roll-over stand comprises at least two spaced L-shaped structures and a connecting piece for connecting the at least two L-shaped structures together.

Preferably, the power component is an electric push rod, an air cylinder or a hydraulic cylinder, and the turnover frame is pulled or pushed to turn over through the electric push rod, the air cylinder or the hydraulic cylinder.

Preferably, the movable frame is provided with a first supporting part and a second supporting part, when the roll-over stand is in the first state, the first supporting part supports the bottom arm of the roll-over stand, and when the roll-over stand is turned over to the second state, the second supporting part supports the vertical arm of the roll-over stand.

Preferably, a sliding rail is arranged below the moving frame, and the moving frame moves along the sliding rail.

Preferably, the turnover device further comprises a driving mechanism for driving the movable frame to move and a sensor positioned between the turnover frame and the workpiece, and when the sensor detects that the vertical arm of the turnover frame contacts the workpiece, the driving mechanism controls the movable frame to stop advancing.

According to another aspect of the present invention, there is also provided a flip welding apparatus comprising a welding device and the flip device according to any one of claims 1 to 6, the welding device welding a workpiece after the flip device flips the workpiece from the first state to the second state.

Preferably, the flip welding apparatus further comprises a conveying roller device for conveying the workpiece;

when the moving frame of the turnover device moves to one side of the conveying roller device, the bottom arm of the turnover frame can extend into the bottom of the workpiece from a gap between rollers of the conveying roller device.

Preferably, the number of the turnover devices is two, the two turnover devices are used for being respectively arranged on two sides of the workpiece, and the turnover devices on different sides can turn the workpiece to different angle positions for welding.

Preferably, the turnover welding equipment further comprises a control device, wherein the control device is configured to control a driving mechanism for driving the moving frame to move and the power component for driving the turnover frame to turn over;

the control device controls the movable frame to move through the driving mechanism, when information that the vertical arm is in contact with the workpiece is received, the movable frame is controlled to stop and control the turnover frame to turn over from the first state to the second state, then the movable frame is controlled to drive the turned workpiece to move to a welding position, the welding device welds the workpiece, after welding is completed, the control device controls the movable frame to drive the workpiece to move to a placing position, and controls the turnover frame to turn over from the second state to the first state, and the bottom arm of the turnover frame is separated from the workpiece.

According to the technical scheme provided by the invention, the turnover device for turning over the workpiece can easily realize the turnover of the workpiece with larger size and weight, particularly the turnover of a large steel beam, is easy to operate, saves manpower, has high operation efficiency, has wide application range, can turn over workpieces with different sizes and specifications, and is not limited by the cross section and the length size of the workpiece (such as the steel beam) to be turned over.

Drawings

FIG. 1 is a schematic view of the turning apparatus in a first state (the bottom arm of the roll-over stand is at the bottom of the workpiece) according to one embodiment of the present invention;

FIG. 2 is a schematic structural view of the turning device in a second state (after the roll-over stand is turned over) according to an embodiment of the present invention;

FIG. 3 is a schematic side view of the turnover device supporting a workpiece to be turned over from the conveyor roller device;

FIG. 4 is a top view of the turnover device supporting a workpiece to be turned over from the conveyor roller device;

fig. 5 is a schematic view of the welding robot welding the reversed workpiece.

Description of the reference numerals

1-a moving rack; 11-a first support member; 12-a second support member; 13-a slide rail; 2-a drive mechanism; 3-turning over the shelf; a 31-L shaped structure; 32-a connector; 4-a power component; 5-a rotating shaft; 6-a base; 100-a workpiece; 200-a conveyor roller arrangement; 300-welding device.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The drawings are merely schematic illustrations of the present disclosure and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the subject matter of the present disclosure can be practiced without one or more of the specific details, or with other methods, components, devices, steps, and the like. In other instances, well-known structures, methods, devices, implementations, materials, or operations are not shown or described in detail to avoid obscuring aspects of the disclosure.

Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "lower" can encompass both an upper and a lower orientation. The device may also be otherwise oriented, such as by rotation through 90 degrees or at other orientations and the spatially relative descriptors used herein interpreted accordingly.

The invention provides a turnover device, which comprises a movable frame 1, a turnover frame 3 and a power component 4, wherein the movable frame 1 can move, the turnover frame 3 is rotatably arranged on the movable frame 1, and the power component 4 is used for driving the turnover frame 3 to turn over; wherein, the roll-over stand 3 comprises an L-shaped structure 31 composed of a bottom arm 311 and a vertical arm 312;

after the movable stand 1 is set to move the roll-over stand 3 until the bottom arm 311 extends into the bottom of the workpiece 100, the power unit 4 can drive the roll-over stand 3 carrying the workpiece 100 to roll over from the first state to the second state toward the side having the standing arm 312, and can drive the roll-over stand 3 to roll over from the second state back to the first state to release the workpiece 100.

The turnover device provided by the invention can be suitable for turning over workpieces with heavy weight and large size, such as steel beams, the workpiece 100 to be turned over shown in fig. 1 and 2 is an i-shaped steel beam, and when the steel beam needs to be turned over to the welding surface upwards or in other angle directions, the turnover device provided by the invention can be used for turning over so as to be convenient for welding on the welding surface.

When the steel beam is turned over, the moving frame 1 moves to one side of the steel beam, the bottom arm 311 of the L-shaped structure 31 of the turning frame 3 extends into the bottom of the steel beam (the steel beam is supported by the bearing part), in a first state shown in fig. 1, the power part 4 drives the turning frame 3 to drive the steel beam to turn towards one side with the vertical arm 312, so that a welding surface to be welded faces upwards, in a second state shown in fig. 2, after welding is completed, the moving frame 1 drives the workpiece 100 to move to a preset position, the turning frame 3 reversely turns to the first state, the steel beam is released on the bearing part, the moving frame 1 drives the turning frame 3 to retreat, and the bottom arm 311 is separated from the steel beam.

Wherein the bearing member for bearing the workpiece 100 is provided so that the bottom arm 311 of the roll stand 3 protrudes to the bottom of the workpiece, fig. 3 and 4 show that the workpiece 100 is placed on the conveyor roller device 200, and the bottom arm 311 protrudes from between the rollers of the conveyor roller device 200 to the bottom of the workpiece. Of course, it will be appreciated that the workpiece 100 may be placed on other load bearing members that facilitate insertion of the bottom arm 311 into the bottom of the workpiece.

The turnover device provided by the invention adopts the L-shaped structure 31 to bear the workpiece 100 for turnover, and has the advantages of easy turnover operation, simple structure and low cost. In addition, the L-shaped structure 31 can support a wide range of workpieces, and can turn over workpieces of different dimensions without being limited by the cross section and length of the workpiece (e.g., steel beam) to be turned over. Therefore, the turnover device provided by the invention overcomes the defects of complex operation, high clamping difficulty, narrow workpiece range and the like of turnover equipment in the prior art in a mode that the turnover equipment adopts clamping and turnover from two ends of a large-scale steel structure.

It will be appreciated by those skilled in the art that the turning device provided by the present invention is not limited to turning steel beams, and other suitable workpieces may be turned using the turning device.

The turning device provided by the present invention is described below according to one embodiment.

In the present embodiment, the turning device further includes a driving mechanism 2 for driving the moving frame 1 to move, and the driving mechanism 2 may be a driving mechanism known to those skilled in the art, such as an electric push rod, a lead screw mechanism, or a rack and pinion. Of course, the technical scheme provided by the invention does not exclude the mode that the moving frame 1 is moved by manual pushing.

A sliding rail 13 is arranged below the moving frame 1, and the moving frame 1 moves towards a workpiece to be turned or moves reversely along the sliding rail 13. As shown in fig. 1 and 2, a base 6 may be provided below the moving frame 1, and a slide rail 13 may be provided between the base 6 and the moving frame 1.

The turnover device further comprises a sensor arranged between the turnover frame 3 and the workpiece 100, when the sensor detects that the vertical arm 312 of the turnover frame 3 is in contact with the workpiece 100, the sensor indicates that the bottom arm 311 of the turnover frame 3 is located at the bottom of the workpiece 100 and has moved in place, the driving mechanism 2 controls the movable frame 1 to stop advancing, and at the moment, the turnover frame 3 can drive the workpiece 100 to turn over.

In order to enable the roll-over stand 3 to turn over, the roll-over stand 3 is rotatably mounted on the movable stand 1 through a rotating shaft 5, the specific structure of the roll-over stand 3 is shown in fig. 3, the roll-over stand 3 comprises at least two L-shaped structures 31 arranged at intervals and a connecting piece 32 connecting the at least two L-shaped structures 31 together, and the workpiece 100 is carried by the at least two L-shaped structures 31 and turns over. Since the turning device in this embodiment is configured to turn the long steel beam, at least two spaced L-shaped structures 31 are provided to support the steel beam to better maintain the balance of the steel beam when it is turned. Wherein, at the position corresponding to each L-shaped structure 31, the movable frame 1 is provided with a support for installing the rotating shaft 5, and the support is correspondingly arranged at the position of the L-shaped structure 31 to better support the workpiece.

The power component 4 for driving the roll-over stand 31 to roll over can be an electric push rod, an air cylinder or a hydraulic cylinder, and the roll-over stand 3 is pulled or pushed to roll over through the electric push rod, the air cylinder or the hydraulic cylinder.

In the present embodiment, the movable frame 1 is provided with a first support member 11 and a second support member 12, the first support member 11 supports the bottom arm 311 of the roll-over stand 3 when the roll-over stand 3 is in the first state (as shown in fig. 1), and the second support member 12 supports the upright arm 312 of the roll-over stand 3 when the roll-over stand 3 is turned over to the second state (as shown in fig. 2). In this embodiment, the turning angle of the turning frame 3 from the first state to the second state is substantially 90 °, and of course, the turning angle may be set as required, for example, the turning frame may be turned to a position where the welding surface faces upward horizontally or at another angle convenient for welding, and the turning angle may be specifically defined by the supporting height of the second supporting member 12.

According to another aspect of the present invention, there is also provided a flip welding apparatus comprising a welding device 300 and the flip device as described above, wherein after the flip device flips the workpiece 100 from the first state to the second state, the welding device 300 performs a welding operation on the welding surface of the workpiece 100. The welding device 300 is preferably an intelligent welding robot.

As shown in fig. 3 and 4, the flip welding apparatus further includes a conveyor roller device 200 for conveying the workpiece 100, and when the moving frame 1 of the flip device moves to one side of the conveyor roller device 200, the bottom arm 311 of the flip frame 3 can extend into the bottom of the workpiece 100 from a gap between rollers of the conveyor roller device 200.

Preferably, the number of the turnover devices is two, the two turnover devices are respectively arranged at two sides of the workpiece 100 to be turned over, and the turnover devices at different sides can turn the workpiece 100 to different angle positions for welding.

Specifically, in the case where the welding surface on the left side of the workpiece 100 is turned upward to weld the workpiece 100 as shown in fig. 1, the workpiece 100 is turned to the state shown in fig. 2 by the turning device on the right side, and in the case where the welding surface on the right side of the workpiece 100 is turned upward to weld the workpiece, the workpiece is turned to the left side by the turning device on the left side of the workpiece 100 (the turning device on the left side is not shown).

In this embodiment, the flip welding apparatus is configured to be capable of automatic flip and welding. Specifically, the method comprises the following steps:

the turnover welding equipment further comprises a control device, wherein the control device is arranged to control a driving mechanism 2 for driving the moving frame 1 to move and a power part 4 for driving the turnover frame 3 to turn over;

the control device controls the movable frame 1 to move through the driving mechanism 2, when information that the vertical arm 312 contacts the workpiece 100 is received, the movable frame 1 is controlled to stop, the turnover frame 3 is controlled to turn over from a first state to a second state, then the movable frame 1 is controlled to drive the turned workpiece 100 to move to a welding position, the welding device 300 welds the workpiece 100, after welding is completed, the control device controls the movable frame 1 to drive the workpiece 100 to move to a placing position, controls the turnover frame 3 to turn over from the second state to the first state, the bottom arm 311 of the turnover frame 3 is separated from the workpiece 100, and the movable frame 1 can drive the turnover frame 3 to move backwards.

Specifically, a sensor or a proximity switch is provided between the upright arm 312 and the workpiece 100, and the information that the upright arm 312 contacts the workpiece 100 is transmitted to the control device by the sensor or the proximity switch.

The following describes in detail the automated operation of the flip welding apparatus according to the present invention by way of specific embodiments.

As shown in fig. 3 and 4, the workpiece 100 (the workpiece 100 in this embodiment is an i-beam) is placed on the conveyor roller device 200;

when the moving frame 1 of the reversing device is driven by the driving mechanism 2 to move to one side of the conveying roller device 200 along the slide rail 13, the bottom arm 311 of the L-shaped structure 31 of the reversing device extends into the bottom of the workpiece 100 from the gap between the rollers of the conveying roller device 200, and the standing arm 312 contacts the workpiece 100, as shown in fig. 1, the sensor feeds back the information that the standing arm contacts the workpiece to the control device, the control device controls the driving mechanism 2 to control the moving frame 1 to stop advancing, and controls the power part 4 to drive the reversing frame 3 to reverse, so that the reversing frame 3 is reversed from a first state to a second state, in the present embodiment, in the first state, the bottom arm 311 of the L-shaped structure 31 is inserted into the bottom of the workpiece 100 approximately horizontally, and the standing arm 312 is approximately in an upright state; in the second state, the upright arm 312 is turned to be horizontal, and the upright arm 312 of the roll-over stand 3 abuts against the second support member 12, and the welding surface of the workpiece 100 on the roll-over stand 3 faces upwards;

then, the moving frame 1 is controlled to move the workpiece 100 on the roll-over stand 3 to a preset welding position, and the welding device 300 is used for welding the workpiece 100;

in the present embodiment, as shown in fig. 5, the welding apparatus 300 is an intelligent welding robot, and the welding robot specifies the working position by visual inspection and performs a processing operation such as welding on the reversed workpiece 100. In order to improve the working efficiency, a plurality of welding robots can be arranged to operate on the workpiece 100 at the same time;

after the welding of the welding surface of the workpiece 100 is finished, the control device controls the moving frame 1 to return to the conveying roller device 200, controls the power component 4 to turn the roll-over frame 3, so that the roll-over frame 3 returns to the first state from the second state, the workpiece 100 is supported on the roller of the conveying roller device 200, the moving frame 1 is driven to drive the roll-over frame 3 to retreat and separate from the workpiece 100, and a space for the operation of the next process is conveniently reserved.

When it is necessary to weld the other side of the workpiece 100, the workpiece 100 is turned over by the turning device provided at the other side of the conveyor roller device 200 so that the welding surface of the other side faces upward, and then the above steps are repeated.

The welded workpiece 100 may be returned to the conveying roller device 200 to be inspected or conveyed forward, or may be placed at another predetermined position to be subjected to the next process.

This embodiment can improve work efficiency through automatic pipelining, uses manpower sparingly moreover, reduces artifical error.

The turnover welding equipment provided by the invention can be used for completing turnover and welding of workpieces, and is particularly suitable for welding by turning the welding surface of a large steel beam to be horizontally upward.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, numerous simple modifications can be made to the technical solution of the invention, including combinations of the individual specific technical features in any suitable way. The invention is not described in detail in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.

Claims (10)

1. The turnover device is characterized by comprising a movable frame, a turnover frame and a power component, wherein the movable frame can move, the turnover frame is rotatably arranged on the movable frame, and the power component drives the turnover frame to turn over; the overturning frame comprises an L-shaped structure consisting of a bottom arm and a vertical arm;

the movable frame is arranged to drive the turnover frame to move to the position that the bottom arm extends into the bottom of the workpiece, the power component can drive the turnover frame bearing the workpiece to turn over from a first state to a second state towards the side with the upright arm, and the turnover frame can turn over from the second state back to the first state to release the workpiece.

2. The flipping apparatus of claim 1, wherein the flipping frame comprises at least two of the L-shaped structures in a spaced arrangement and a connector connecting the at least two L-shaped structures together.

3. The turnover device of claim 1, wherein the power component is an electric push rod, an air cylinder or a hydraulic cylinder, and the turnover frame is pulled or pushed to turn over by the electric push rod, the air cylinder or the hydraulic cylinder.

4. The turnover device of claim 1, wherein the movable frame is provided with a first support member and a second support member, the first support member supports the bottom arm of the turnover frame when the turnover frame is in the first state, and the second support member supports the upright arm of the turnover frame when the turnover frame is turned to the second state.

5. The turnover device of claim 4, wherein a slide rail is disposed below the movable frame, and the movable frame moves along the slide rail.

6. The turnover device of any one of claims 1 to 5, further comprising a driving mechanism for driving the movable frame to move, and a sensor located between the turnover frame and the workpiece, wherein the driving mechanism controls the movable frame to stop advancing when the sensor detects that the upright arm of the turnover frame contacts the workpiece.

7. A flip welding apparatus comprising a welding device and a flip device according to any one of claims 1 to 6, wherein the welding device welds a workpiece after the flip device flips the workpiece from the first state to the second state.

8. The flip welding apparatus of claim 7, further comprising a conveyor roller device for conveying the workpiece;

when the moving frame of the turnover device moves to one side of the conveying roller device, the bottom arm of the turnover frame can extend into the bottom of the workpiece from a gap between rollers of the conveying roller device.

9. The turnover welding device of claim 7, wherein the turnover device is provided with two turnover devices, the two turnover devices are respectively arranged at two sides of the workpiece, and the turnover devices at different sides can turn the workpiece to different angle positions for welding.

10. The flip welding apparatus of any one of claims 7-9, further comprising a control device configured to control a drive mechanism that drives the moving frame to move and the power component that drives the flip frame to flip;

the control device controls the movable frame to move through the driving mechanism, when information that the vertical arm is in contact with the workpiece is received, the movable frame is controlled to stop and control the turnover frame to turn over from the first state to the second state, then the movable frame is controlled to drive the turned workpiece to move to a welding position, the welding device welds the workpiece, after welding is completed, the control device controls the movable frame to drive the workpiece to move to a placing position, and controls the turnover frame to turn over from the second state to the first state, and the bottom arm of the turnover frame is separated from the workpiece.

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