Automatic welding device for stand column piece of storage shelf

Abstract

The utility model discloses an automatic welding device for storage shelf stand column pieces, which comprises a base frame and two stand column piece fixing frames arranged in parallel along the longitudinal direction, and the base frame is movably matched with the two stand column piece fixing frames; a locking structure matched with a stand column of the stand column piece is arranged on the stand column piece fixing frame. The base frame is connected with a first transverse sliding rail and a second transverse sliding rail which are parallel to the stand column, a first moving seat is arranged on the first transverse sliding rail, a second moving seat is arranged on the second transverse sliding rail, a welding machine is arranged on the first moving seat, and a welding gun electrically connected with the welding machine is arranged on the second moving seat. The welding gun corresponds to the splicing position of the stand column and the transverse / inclined strut of the stand column piece. According to the automatic welding device for the stand column piece of the storage shelf, professional welders are not needed, the requirement for production skills of personnel is low, the labor cost is low, continuous welding can be achieved, and time is saved.

Description

Technical Field

[0001] The utility model relates to the field of column piece welding, in particular to an automatic welding device for column pieces of storage shelves. Background Art

[0002] The column piece is an integral structure composed of two side columns and several horizontal braces and diagonal braces, and is mainly used on storage shelves.

[0003] At present, the welding of column pieces mainly adopts manual welding by welders, which not only requires high technical skills of welders, but also takes a long time, resulting in high labor costs. A small number of factories have begun to use automatic equipment equipped with two manipulators to weld the joints between the columns and the horizontal / diagonal braces on both sides of the column piece, but this type of equipment using manipulators is expensive and difficult to maintain. Utility Model Content

[0004] The utility model aims to provide an automatic welding device for storage shelf column pieces, which does not require professional welders, has low production skill requirements for personnel, has low labor costs, can achieve continuous welding, and saves time.

[0005] To achieve the above-mentioned purpose, the utility model provides an automatic welding device for storage shelf column pieces, including a base frame and two column piece fixing frames arranged in parallel along the longitudinal direction, and the base frame and the two column piece fixing frames are movably matched; the column piece fixing frames are provided with a locking structure adapted to the columns of the column piece; the base frame is connected with a first transverse slide rail and a second transverse slide rail parallel to the columns, the first transverse slide rail is provided with a first movable seat, the second transverse slide rail is provided with a second movable seat, the first movable seat is provided with a welding machine, the second movable seat is provided with a welding gun electrically connected to the welding machine, and the welding gun corresponds to the joint between the column and the horizontal / oblique support of the column piece.

[0006] As a further improvement of the utility model, the two column plate fixing frames are connected by a connecting rod.

[0007] As a further improvement of the utility model, the base frame and the two column plate fixing frames are movably connected via a longitudinal translation structure; the longitudinal translation structure includes a slidably matched guide rail and a slider, the guide rail is connected to the base frame, and the slider is connected to the column plate fixing frame; the slider is provided with a third driving device that matches the guide rail.

[0008] As a further improvement of the present invention, the middle portion of the connecting rod is rotatably connected to the base frame via a rotating shaft; the rotating shaft is linked to a fourth driving device.

[0009] As a further improvement of the present invention, the column piece fixing frame is a vertically arranged frame-type structure, and a mounting portion is provided on the column piece fixing frame. The locking structure includes a linear drive device and a pressure plate connected to each other, and the linear drive device is installed on the mounting portion. The pressure plate corresponds to the column piece fixing frame and together constitutes a clamping structure of the column.

[0010] As a further improvement of the present invention, the column piece fixing frame includes two side panels arranged symmetrically on the left and right; the ends of the two side panels are connected by a cross beam, a column piece fixing rod is provided on one side of the cross beam, and the two ends of the column piece fixing rod are respectively detachably connected to the side panels on both sides; the column piece fixing rod and the cross beam are detachably connected by reinforcing ribs; the pressure plate of the locking structure and the column piece fixing rod of the column piece fixing frame are arranged opposite to each other and together constitute a clamping structure of the column.

[0011] As a further improvement of the utility model, one side of the column piece fixing frame is connected to a pushing device capable of pushing the column piece to the other side.

[0012] As a further improvement of the present invention, the first transverse slide rail and the second transverse slide rail are both in two groups and are respectively located at the upper and lower sides of the column plate fixing frame.

[0013] As a further improvement of the utility model, the first movable seat is provided with a first driving device cooperating with the first transverse slide rail, and the second movable seat is provided with a second driving device cooperating with the second transverse slide rail; the first driving device and the second driving device are both electrically connected to the controller; the second driving device includes a CNC motor.

[0014] As a further improvement of the present invention, the welding guns are arranged in two groups, one above the other below, and the two welding guns in each group are arranged symmetrically.

[0015] Beneficial Effects

[0016] Compared with the prior art, the advantages of the automatic welding device for storage shelf columns of the utility model are:

[0017] 1. Since two column piece fixing frames that can slide through the longitudinal translation structure are provided, when the column piece on one of the column piece fixing frames is being welded, the other column piece fixing frame can be moved to the loading area to install various components of the column piece, so that the welding process and the installation process of various components of the column piece can be carried out at the same time, saving the overall production cycle when producing a large number of column pieces and improving production efficiency.

[0018] 2. When the moving seat moves along the horizontal slide rail, the welding gun passes through the joints of the column and the horizontal / diagonal brace of the column piece in sequence, so as to perform welding in sequence, and the welding efficiency is high. The moving position of the moving seat is precisely controlled by the CNC motor.

[0019] 3. The welding guns are divided into two groups, one at the top and the other at the bottom, which can weld the two columns at the top and the bottom at the same time to improve efficiency.

[0020] 4. The two column piece fixing frames are connected as a whole by a connecting rod. When one of them is pushed to the welding station, the other will be located at the loading and unloading station. There is no need to pull the two column piece fixing frames separately, which makes the operation more convenient.

[0021] 5. The locking structure's pressure plate cooperates with the column sheet fixing frame to clamp the column of the column sheet. It has a simple structure and good fixing effect, and will not interfere with the welding gun.

[0022] The present invention will become more clear through the following description in conjunction with the accompanying drawings, which are used to explain the embodiments of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a front view of the automatic welding device for storage shelf column pieces of Example 1;

[0025] Figure 2 for Figure 1 AA view;

[0026] Figure 3 It is a side view of the column piece fixing frame of Example 1;

[0027] Figure 4 It is a partial enlarged view of the locking structure of Example 1;

[0028] Figure 5 It is a front view of the column piece of Example 1;

[0029] Figure 6 It is a side cross-sectional view of the welding gun, column, and horizontal / diagonal brace of Example 1;

[0030] Figure 7 It is a side cross-sectional view of the automatic welding device for storage shelf column pieces of Example 2;

[0031] Figure 8 It is a front view of the column piece fixing frame of Example 2;

[0032] Fig. 9 for Figure 8 BB view. DETAILED DESCRIPTION

[0033] Embodiments of the present invention will now be described with reference to the accompanying drawings.

[0034] Example 1

[0035] The specific implementation of the utility model is as follows Figures 1 to 6 As shown, an automatic welding device for column pieces of a storage shelf includes a base frame 1 and two column piece fixing frames 3 arranged in parallel along the longitudinal direction, and the base frame 1 and the two column piece fixing frames 3 are movably connected through a longitudinal translation structure 2. The column piece fixing frame 3 is provided with a locking structure 4 adapted to the column 101 of the column piece 10. The base frame 1 is connected with a first transverse slide rail 51 and a second transverse slide rail 52 parallel to the column 101, the first transverse slide rail 51 is provided with a first movable seat 61, the second transverse slide rail 52 is provided with a second movable seat 62, the first movable seat 61 is provided with a welding machine 7, and the second movable seat 62 is provided with a welding gun 8 electrically connected to the welding machine 7, and the welding gun 8 corresponds to the joint between the column 101 and the horizontal / diagonal brace 102 of the column piece 10. The column 101 is a channel steel structure, and the end of the horizontal / diagonal brace 102 is inserted into the groove on one side of the column 101. In this embodiment, the base frame 1 is a frame structure and is symmetrically arranged in two, and the first transverse slide rail 51 and the second transverse slide rail 52 are connected between the two base frames 1. The front and rear sides of the automatic welding device for storage shelf column pieces are both loading and unloading stations, and the welding station is between the two loading and unloading stations.

[0036] The two column sheet fixing frames 3 are connected by a connecting rod 32. To improve the connection strength, at least two connecting rods 32 can be used.

[0037] The longitudinal translation structure 2 includes a guide rail 21 and a slider 22 that are slidably matched, the guide rail 21 is connected to the base frame 1, and the slider 22 is connected to the column plate fixing frame 3. The slider 22 is provided with a third driving device that matches the guide rail 21. The first transverse slide rail 51 and the guide rail 21 are perpendicular to each other and are both arranged horizontally.

[0038] The column piece fixing frame 3 is a vertically arranged frame-shaped structure, and a mounting portion 31 is provided on the column piece fixing frame 3. The locking structure 4 includes a linear drive device 42 and a pressure plate 41 connected to each other, and the linear drive device 42 is installed on the mounting portion 31. The pressure plate 41 corresponds to the column piece fixing frame 3 and together constitutes a clamping structure for the column 101. The upper pressure plate 41 and the top crossbeam of the column piece fixing frame 3 are used to clamp the column 101 located above, and the lower pressure plate 41 and the bottom crossbeam of the column piece fixing frame 3 are used to clamp the column 101 located below.

[0039] One side of the column piece fixing frame 3 is connected with a push-out device 33 that can push the column piece 10 to the other side. In this embodiment, the push-out device 33 can be a telescopic cylinder, and the output end of the telescopic cylinder is connected to a push plate. Each column piece fixing frame 3 is provided with four push-out devices 33, and the four push-out devices 33 correspond to the four corners of the column piece 10 respectively. When the four push-out devices 33 are working, the column piece 10 that has been welded on the inner side of the column piece fixing frame 3 is pushed out to the side of the worker standing at the loading and unloading station, and the worker does not need to pull the column piece 10 out from the inner side of the column piece fixing frame 3 by hand, which saves time and effort. When installing the push-out device 33, it is necessary to avoid interference with the moving second movable seat 62 and welding gun 8.

[0040] The first transverse slide rail 51 and the second transverse slide rail 52 are both in two groups and are respectively located on the upper and lower sides of the column plate fixing frame 3. The welding guns 8 are arranged in two groups, one on the upper side and the other on the lower side, and the two welding guns 8 in each group are arranged symmetrically. The first movable seat 61 of the welding machine and the second movable seat 62 of the welding gun are controlled to move together, but are installed on two layers of the first transverse slide rail 51 and the second transverse slide rail 52 of the cross beam. The reason is that the welding gun is light in weight and has high requirements for the linear accuracy of the transverse slide rail, while the welding machine is heavy in weight but has no requirements for the linear accuracy of the transverse slide rail, so they can be controlled to move together but cannot be installed together.

[0041] The first movable seat 61 is provided with a first driving device matched with the first transverse slide rail 51, and the second movable seat 62 is provided with a second driving device matched with the second transverse slide rail 52. The first driving device and the second driving device are both electrically connected to the controller, so that the first movable seat 61 can automatically move along the first transverse slide rail 51, and the second movable seat 62 can automatically move along the second transverse slide rail 52. The first and second driving devices can adopt running wheels connected to a motor, and the running wheels are in contact with the transverse slide rail 5; or a gear rack structure can be adopted, wherein the gear linked with the motor is arranged on the movable seat, the rack is parallel to the transverse slide rail, and the rack is meshed with the gear. The first driving device and the second driving device preferably adopt a CNC motor to drive the position of the movable seat, thereby controlling the position of the welding gun 8, with higher control accuracy, ensuring that the welding gun 8 can accurately weld the joint between the column 101 and the horizontal / diagonal brace 102.

[0042] In addition, the third driving device located between the guide rail 21 and the slider 22 of the longitudinal translation structure 2 can also adopt a structure similar to the first and second driving devices or a telescopic cylinder, so that the slider 22 can automatically move back and forth in a straight line along the guide rail 21.

[0043] The workflow is as follows:

[0044] 1) An ordinary worker fixes two columns 101 of a column sheet 10 to be welded horizontally to the upper and lower parts of one of the column sheet fixing frames 3 through the locking structure 4. The two columns 101 are channel steel structures and the notches of the two are arranged oppositely. The two ends of the horizontal / diagonal brace 102 are respectively inserted into the notches of the two columns 101. Figure 6 As shown;

[0045] 2) Move the column piece fixing frame 3 equipped with the column piece 10 to the welding station. At this time, the column piece fixing frame 3 is located between the upper and lower groups of welding guns 8, and the other idle column piece fixing frame 3 is located at the loading and unloading station.

[0046] 3) Start the driving device of the first movable seat 61 and the second movable seat 62, so that the first movable seat 61 and the second movable seat 62 move from one end of the first transverse slide rail 51 and the second transverse slide rail 52 to the other end respectively, and the controller drives the two symmetrical welding guns 8 of the group to weld the joints of the column 101 and the horizontal / diagonal brace 102 from the front and back sides at the same time. During the welding process, the worker fixes a new column piece 10 to be welded on another idle column piece fixing frame 3.

[0047] 4) After the column piece 10 on the column piece fixing frame 3 at the welding station is welded, the second movable seat 62 moves to a position offset from the column piece fixing frame 3, and the column piece fixing frame 3 is moved to the loading and unloading station for unloading, and a new column piece 10 to be welded is replaced. The column piece fixing frame 3 with the new column piece 10 to be welded is moved to the welding station to prepare for a new round of welding process.

[0048] Example 2

[0049] like Figures 7 to 9 As shown, the difference from Example 1 is that there are two connecting rods 32, which are respectively connected to the left and right sides of the column plate fixing frame 3. The middle part of the connecting rod 32 is rotatably connected to the base frame 1 through a rotating shaft 321. The rotating shaft 321 is linked with a fourth driving device. The fourth driving device controls the connecting rod 32 to rotate 180° each time.

[0050] The front side of the automatic welding device for storage shelf column pieces is the loading and unloading station, and the middle part of the automatic welding device for storage shelf column pieces is the welding station. Figure 7 In this embodiment, the rotating shaft 321 is arranged horizontally and is parallel to the first transverse slide rail 51. In addition to this embodiment, the rotating shaft 321 can also be arranged vertically.

[0051] The positions of the first transverse slide rail 51 and the second transverse slide rail 52 need to avoid the path of the column plate fixing frame 3 when it rotates around the rotation axis 321. Before the column plate fixing frame 3 rotates, the second movable seat 62 with the welding gun 8 needs to be moved to one side to avoid interference between the welding gun 8 or the second movable seat 62 and the column plate fixing frame 3.

[0052] In this embodiment, the column piece fixing frame 3 includes two side plates 301 arranged symmetrically on the left and right, and the side plates 301 are steel plates. The ends of the two side plates 301 are connected by a crossbeam 302, and the crossbeam 302 is a C-shaped steel. A column piece fixing rod 303 is provided on one side of the crossbeam 302, and the two ends of the column piece fixing rod 303 are detachably connected to the side plates 301 on both sides by screws, and the number of connection points can be set to multiple. A reinforcing rib 304 is provided between the column piece fixing rod 303 and the crossbeam 302, and the two ends of the reinforcing rib 304 are detachably connected to the column piece fixing rod 303 and the crossbeam 302 by screws.

[0053] The pressing plate 41 of the locking structure 4 and the column piece fixing rod 303 of the column piece fixing frame 3 are arranged opposite to each other and together constitute a clamping structure of the column 101. According to the width of the column piece 10, a reinforcing rib 304 of a suitable length is selected and installed between the column piece fixing rod 303 and the crossbeam 302 to ensure that the column 101 of the column piece 10 can be closely attached to one side of the column piece fixing rod 303.

[0054] Each connecting rod 32 is connected to a support rod 305, and a set of support rods 305 symmetrically on both sides are detachably connected with a laterally arranged ejection device fixing rod 306 by screws, and multiple connection points between the end of the ejection device fixing rod 306 and the support rod 305 connected by screws can be set. An ejection device 33 is installed on the ejection device fixing rod 306, and the ejection device 33 is a telescopic cylinder. When the position of the column piece fixing rod 303 needs to be adjusted according to the width size of the column piece 10, the position of the ejection device 33 on the ejection device fixing rod 306 can also be adjusted accordingly to ensure that the ejection device 33 can push the column piece 10 toward one side of the column piece fixing frame 3 when working. The ejection device fixing rod 306 is connected to a mounting portion 31 extending toward one side, and the locking structure 4 is installed on the mounting portion 31.

[0055] In addition, a plurality of transversely extending horizontal / diagonal brace positioning rods 308 are connected to the ejection device fixing rod 306, and the positions of the horizontal / diagonal brace positioning rods 308 will not interfere with the position of the welding gun 8. When the end of the horizontal / diagonal brace 102 is inserted into the groove on one side of the column 101, the horizontal / diagonal brace 102 is placed against the corresponding side of the horizontal / diagonal brace positioning rod 308 to achieve positioning. The positions of the horizontal / diagonal brace positioning rods 308 and the locking structure 4 are staggered to avoid interference.

[0056] The present invention is described above in conjunction with the best embodiments, but the present invention is not limited to the embodiments disclosed above, but should cover various modifications and equivalent combinations based on the essence of the present invention.

Claims

1. An automatic welding device for storage shelf column pieces, characterized in that: The invention comprises a base frame (1) and two column plate fixing frames (3) arranged in parallel in the longitudinal direction, wherein the base frame (1) and the two column plate fixing frames (3) are movably matched with each other; the column plate fixing frames (3) are provided with a locking structure (4) adapted to a column (101) of a column plate (10); the base frame (1) is connected with a first transverse slide rail (51) and a second transverse slide rail (52) parallel to the column (101); the first transverse slide rail (51) is provided with a first movable seat (61); the second transverse slide rail (52) is provided with a second movable seat (62); the first movable seat (61) is provided with a welding machine (7); the second movable seat (62) is provided with a welding gun (8) electrically connected to the welding machine (7); the welding gun (8) corresponds to the joint between the column (101) and the transverse / oblique brace (102) of the column plate (10).

2. The automatic welding device for storage shelf column according to claim 1 is characterized in that: The two column plate fixing frames (3) are connected via a connecting rod (32).

3. The automatic welding device for storage shelf column according to claim 2 is characterized in that: The base frame (1) and the two column plate fixing frames (3) are movably connected via a longitudinal translation structure (2); the longitudinal translation structure (2) comprises a guide rail (21) and a slider (22) that are slidably matched, the guide rail (21) is connected to the base frame (1), and the slider (22) is connected to the column plate fixing frames (3); and a third driving device that matches the guide rail (21) is provided on the slider (22).

4. The automatic welding device for storage shelf column according to claim 2 is characterized in that: The middle portion of the connecting rod (32) is rotatably connected to the base frame (1) via a rotating shaft (321); the rotating shaft (321) is linked to a fourth driving device.

5. The automatic welding device for storage shelf column according to claim 1, 2, 3 or 4, characterized in that: The column piece fixing frame (3) is a vertically arranged frame-type structure, and a mounting portion (31) is provided on the column piece fixing frame (3). The locking structure (4) comprises a linear drive device (42) and a pressure plate (41) connected to each other, the linear drive device (42) is mounted on the mounting portion (31), and the pressure plate (41) corresponds to the column piece fixing frame (3) and together constitutes a clamping structure of the column (101).

6. The automatic welding device for storage shelf column according to claim 5 is characterized in that: The column piece fixing frame (3) comprises two side plates (301) arranged symmetrically on the left and right; the ends of the two side plates (301) are connected by a cross beam (302); a column piece fixing rod (303) is provided on one side of the cross beam (302); the two ends of the column piece fixing rod (303) are respectively detachably connected to the side plates (301) on both sides; the column piece fixing rod (303) and the cross beam (302) are detachably connected by reinforcing ribs (304); the pressing plate (41) of the locking structure (4) and the column piece fixing rod (303) of the column piece fixing frame (3) are arranged opposite to each other and together constitute a clamping structure of the column (101).

7. The automatic welding device for storage shelf column according to claim 1 or 6, characterized in that: One side of the column piece fixing frame (3) is connected to a pushing device (33) capable of pushing the column piece (10) toward the other side.

8. The automatic welding device for storage shelf column according to claim 1 is characterized in that: The first transverse slide rail (51) and the second transverse slide rail (52) are both in two groups and are respectively located on the upper and lower sides of the column plate fixing frame (3).

9. The automatic welding device for storage shelf column according to claim 1 is characterized in that: The first movable seat (61) is provided with a first driving device matched with the first transverse slide rail (51), and the second movable seat (62) is provided with a second driving device matched with the second transverse slide rail (52); the first driving device and the second driving device are both electrically connected to the controller; the second driving device includes a numerically controlled motor.

10. The automatic welding device for storage shelf column according to claim 1, characterized in that: The welding guns (8) are arranged in two groups, one above the other below, and the two welding guns (8) in each group are arranged symmetrically.

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