Sheet assembling and welding portal

Abstract

The invention provides a thin plate assembling and welding portal which comprises a rack and a driving mechanism, a gear of the driving mechanism is located on the first side, provided with a rack, of a track, the thin plate assembling and welding portal further comprises a gap stabilizing mechanism, and the gap stabilizing mechanism comprises a support, a support, a connecting shaft, a bolt and an elastic piece. The support is provided with a first through hole and a second through hole which penetrate through the support in the vertical direction, and the driving mechanism penetrates through the first through hole. The support is fixed to the rack and provided with a third through hole penetrating through the support in the vertical direction. The connecting shaft penetrates through the second through hole and the third through hole; in the meshing direction of the gear, the bolt is in threaded connection with the rack located on the second side, without the rack, of the rail, and the head of the bolt is located on the first side of the rail; in the compression direction of the elastic piece, the first end of the elastic piece abuts against the head of the bolt, and the second end of the elastic piece abuts against the support. And by arranging the gap stabilizing mechanism, no gap between the gear and the rack is ensured, so that shaking and shaking of the rack are reduced.

Description

Technical Field

[0001] The invention relates to the field of shipbuilding, and in particular to a thin plate assembly welding portal frame. Background Art

[0002] The sheet metal assembly welding gantry is an important equipment for positioning, installing and welding the longitudinal bones of the ship. It is mainly composed of a frame and a welding trolley. There is a pair of wheels on both sides of the frame on the two sides of the track. The side of the track is equipped with a rack. There is a driver on each side of the frame. The gear on the driver meshes with the rack on the track to achieve the forward and backward movement of the frame. The stability of the frame movement directly affects the welding quality. Whether the welding accuracy standard and welding quality can meet the requirements directly affects the quality of the subsequent section assembly. If the welding accuracy and quality accumulate errors, it will cause the hull section assembly to be reworked, affecting the progress of shipbuilding.

[0003] In the prior art, the meshing clearance between the rack and the gear of the longitudinal drive mechanism of the frame is adjusted by an eccentric bearing. The friction of the movement will cause the rack and gear to wear and the bearing to be damaged, resulting in clearance errors, which will cause the frame to shake and sway. In addition, due to the deviation of the track straightness, the inconvenient adjustment of the meshing clearance between the rack and gear, the diagonal deviation and other reasons, the gear clearance needs to be adjusted frequently, which shortens the gear life and prolongs the downtime for maintenance. Summary of the invention

[0004] The main technical problem solved by the present invention is to overcome the defects of the prior art that a welding gantry for assembling thin plates produces shaking and swaying when moving, and to provide a welding gantry for assembling thin plates.

[0005] The present invention solves the above technical problems through the following technical solutions:

[0006] A thin plate assembly welding gantry, comprising a frame and a driving mechanism, wherein a side of a track having a rack is defined as a first side, and a side of the track without a rack is defined as a second side, wherein a gear of the driving mechanism is located on the first side, and the thin plate assembly welding gantry further comprises a gap stabilizing mechanism, wherein the gap stabilizing mechanism comprises:

[0007] A bracket, wherein the bracket has a first through hole and a second through hole penetrating the bracket in a vertical direction, and the first through hole is for the driving mechanism to pass through;

[0008] A support, the support is fixed on the frame, and the support has a third through hole penetrating the support in a vertical direction;

[0009] A connecting shaft, the connecting shaft being inserted into the second through hole and the third through hole;

[0010] A bolt, along the meshing direction of the gear, the bolt is threadedly connected to the frame located on the second side, and the head of the bolt is located on the first side,

[0011] An elastic member, along the compression direction of the elastic member, a first end of the elastic member abuts against the head of the bolt, and a second end of the elastic member abuts against the bracket.

[0012] In the present technical solution, the bracket is connected to the support fixed on the frame by a connecting shaft, so as to limit the movement of the bracket. By setting a bolt and an elastic member, the head of the bolt is set on the first side of the track, and the bolt is threadedly connected to the frame located on the second side of the track. When the bolt is screwed to a suitable position, the elastic member can be compressed and the bracket abutting against the elastic member can be subjected to a force along the meshing direction of the gear, thereby driving the gear on the driving mechanism to always maintain a position meshing with the rack, ensuring that there is no gap between the gear and the rack, thereby reducing the jitter and shaking of the frame.

[0013] Preferably, the elastic member is a coil spring, and the coil spring is sleeved on the outer circumference of the bolt.

[0014] In the technical solution, the elastic member is provided as a coil spring, and the coil spring is sleeved on the outer peripheral side of the bolt, so that the abutment between the elastic member and the bolt head is more reliable.

[0015] Preferably, the bracket further has a fourth through hole penetrating the bracket along the meshing direction of the gear, and the screw rod of the bolt is inserted into the fourth through hole.

[0016] In the technical solution, by providing the fourth through hole, the bolt is passed through the fourth through hole, so that the abutment between the elastic member and the bracket is more reliable.

[0017] Preferably, the inner circumference of the first through hole abuts against the driving mechanism.

[0018] In the present technical solution, by making the inner circumference of the first through hole abut against the driving mechanism, that is, there is no gap at the connection between the first through hole and the driving mechanism, the vibration of the driving mechanism can be further reduced. At the same time, when the bolt is loosened so that the frame can move in a direction away from the rack, the inner circumference of the first through hole will not hit the driving mechanism, but directly drive the driving mechanism to move outward.

[0019] Preferably, the bracket and the support are hinged via the connecting shaft.

[0020] In the present technical solution, a specific solution for fixing the bracket is provided, and by hingedly connecting the bracket and the support, the bracket can be better fixed and further prevented from shaking.

[0021] Preferably, the gap stabilization mechanism further includes a bearing, and the bearing is arranged on the outer peripheral side of the connecting shaft, and the bracket and the support are hinged through the connecting shaft and the bearing.

[0022] In the present technical solution, the bracket and the support are hinged by the bearing, so that it is smoother when the bolts are loosened and the support is rotated outward and disassembled.

[0023] Preferably, the gap stabilization mechanism further comprises a copper sleeve, which is arranged on the outer peripheral side of the connecting shaft, and the bracket and the support are hinged through the connecting shaft and the copper sleeve.

[0024] In the technical solution, the bracket and the support are hinged by a copper sleeve, so that it is smoother when the bolts are loosened and the support is rotated outward and disassembled.

[0025] Preferably, the inner diameter of the second through hole is equal to the outer diameter of the connecting shaft, the third through hole is a waist hole extending along the meshing direction of the gear, the extension length of the third through hole along the meshing direction of the gear is greater than the outer diameter of the connecting shaft, and the extension length of the third through hole along the extension direction of the rack is equal to the outer diameter of the connecting shaft;

[0026] The number of the bolts and the number of the elastic members are both two, the two bolts are arranged at intervals along the extension direction of the rack, and the first ends of the two elastic members are respectively in contact with the heads of the two bolts.

[0027] In the present technical solution, a specific solution for fixing the bracket is provided, by setting the third through hole as a waist hole, and by the action of two bolts and an elastic member, the bracket and the driving mechanism can be better fixed at the required position.

[0028] Preferably, the thin plate assembly welding portal frame further includes a nut, and the bolt is threadedly connected to the frame via the nut.

[0029] In the present technical solution, a specific solution for connecting the bolts to the frame is provided, wherein the frame and the bolts are connected by nuts, that is, the bolts only need to pass through the frame and be connected to the nuts, and there is no need to set threaded holes on the frame, making processing more convenient.

[0030] Preferably, the frame has a threaded through hole, and the bolt is threadedly connected to the frame through the threaded through hole.

[0031] A specific solution for connecting a bolt to a frame is provided. By arranging threaded holes on the frame so that the bolt and the frame are threadedly connected, the number of parts of the gap stabilizing mechanism can be reduced, and no nuts are needed, so that the structure of the gap stabilizing mechanism is simpler.

[0032] The positive and progressive effects of the present invention are: the bracket is connected to the support fixed on the frame by a connecting shaft, thereby limiting the movement of the bracket, and by arranging a bolt and an elastic member, the head of the bolt is arranged on the first side of the track, and the bolt is threadedly connected to the frame located on the second side of the track. When the bolt is screwed to a suitable position, the elastic member can be compressed and the bracket abutting against the elastic member can be subjected to a force along the meshing direction of the gear, thereby driving the gear on the driving mechanism to always maintain a position meshing with the rack, ensuring that there is no gap between the gear and the rack, thereby reducing the shaking and swaying of the frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 The figure is a top view structural schematic diagram of a thin plate welded door frame according to a preferred embodiment of the present invention.

[0034] Figure 2 A schematic diagram of the side structure of a thin plate welding gantry according to a preferred embodiment of the present invention

[0035] Description of reference numerals:

[0036] Rack 100

[0037] Driving mechanism 200

[0038] Gap Stabilization Mechanism 300

[0039] Bracket 31

[0040] Support 32

[0041] Connecting shaft 33

[0042] Bolt 34

[0043] Head 341

[0044] Elastic member 35

[0045] First End 351

[0046] Second end 352

[0047] Bearing 36

[0048] Track 400

[0049] First side 401

[0050] Second side 402

[0051] Meshing direction A DETAILED DESCRIPTION

[0052] A preferred embodiment is given below, and the present invention is described more clearly and completely in conjunction with the accompanying drawings.

[0053] like Figure 1 and Figure 2As shown, this embodiment provides a thin plate assembly welding gantry, which includes a frame 100 and a driving mechanism 200, and defines the side of the track 400 with a rack as a first side 401, and the side of the track 400 without a rack as a second side 402, and the gear of the driving mechanism 200 is located on the first side 401 of the track 400. The thin plate assembly welding gantry also includes a gap stabilization mechanism 300, and the gap stabilization mechanism 300 includes a bracket 31, a support 32, a connecting shaft 33, a bolt 34 and an elastic member 35. The bracket 31 is arranged on the first side 401 of the guide rail 400, and the bracket 31 has a first through hole and a second through hole that penetrate the bracket 31 in the vertical direction, and the first through hole is for the driving mechanism 200 to pass through; the support 32 is fixed on the frame 100, and the support 32 has a third through hole that penetrates the support 32 in the vertical direction; the connecting shaft 33 is penetrated in the second through hole and the third through hole; along the meshing direction A of the gear, the bolt 34 is threadedly connected to the frame 100 located on the second side 402, and the head 341 of the bolt 34 is located on the first side 401 of the rail 400; along the compression direction of the elastic member 35, the first end 351 of the elastic member 35 abuts against the head 341 of the bolt 34, and the second end 352 of the elastic member 35 abuts against the bracket 31. The bracket 31 and the support 32 fixed on the frame 100 are connected by a connecting shaft 33, so as to limit the movement of the bracket 31. By setting a bolt 34 and an elastic member 35, the head 341 of the bolt 34 is set on the first side 401 of the track 400, and the bolt 34 is threadedly connected to the frame 100 located on the second side 402 of the track 400. When the bolt 34 is screwed to a suitable position, the gear and the rack are in a state of meshing without gap, the elastic member 35 is compressed and the bracket 31 abutting against the elastic member 35 is subjected to a force along the meshing direction of the gear, thereby driving the gear on the driving mechanism 200 to always maintain a position meshing with the rack, ensuring that there is no gap between the gear and the rack, thereby reducing the jitter and shaking of the frame 100, and further improving the welding quality of the thin plate.

[0054] Specifically, the meshing direction A of the gears refers to the direction from the first side 401 of the track 400 to the second side 402 of the track 400. The first side of the track 400 and the second side of the track 400 mentioned in this embodiment refer to the space being divided into two parts along a vertical plane parallel to the track 400 from the axis of the track 400. The side with the rack is the first side of the track 400, and the side without the rack is the second side of the track 400. During the initial installation, the bolts 34 are tightened to a state where the gear and the rack are tightly meshed, and the elastic member 35 is in a compressed state. During the subsequent use, if there is a gap between the gear and the rack, the force of the elastic member 35 will cause the gear to move in the meshing direction, and the magnitude of the force of the spring on the gear is adaptively adjusted accordingly, thereby ensuring that there is no gap between the gear and the rack.

[0055] Specifically in this embodiment, the elastic member 35 is a coil spring, which is sleeved on the outer circumference of the bolt 34. By setting the elastic member 35 as a coil spring, which is sleeved on the outer circumference of the bolt 34, the abutment between the elastic member 35 and the head 341 of the bolt 34 is more reliable. Specifically, since the coil spring is sleeved on the bolt 34, the coil spring will not move in the radial direction, that is, the abutment position between the elastic member 35 and the bolt 34 remains unchanged.

[0056] Of course, in other embodiments, the elastic member 35 may also be other elastic parts in the prior art such as a leaf spring or other non-metallic elastic parts, which will not be described in detail here.

[0057] Meanwhile, in the present embodiment, the bracket 31 also has a fourth through hole penetrating the bracket 31 along the meshing direction of the gears, and the screw of the bolt is inserted into the fourth through hole. By setting the fourth through hole, the bolt 34 is inserted into the fourth through hole, so that the abutment between the elastic member 35 and the bracket 31 is more reliable. Specifically, due to the restriction of the fourth through hole, the bolt 34 will not move in the radial direction, and the coil spring sleeved on the bolt 34 will not move, so that the abutment position of the coil spring and the bracket 31 remains unchanged.

[0058] In this embodiment, the inner circumference of the first through hole abuts against the driving mechanism 200. By making the inner circumference of the first through hole abut against the driving mechanism 200, that is, there is no gap at the connection between the first through hole and the driving mechanism 200, the shaking of the driving mechanism 200 can be further reduced. At the same time, when the bolt 34 is loosened so that the frame 100 can move in a direction away from the rack, the inner circumference of the first through hole will not hit the driving mechanism 200, but directly drive the driving mechanism 200 to move outward.

[0059] Of course, in other embodiments, there may be a gap in the connection between the first through hole and the driving mechanism 200 , but compared with the technical solution in which there is no gap between the first through hole and the driving mechanism 200 , the shaking of the frame will be more obvious.

[0060] In this embodiment, the bracket 31 and the support 32 are hingedly connected via a connecting shaft 33. By hingedly connecting the bracket 31 and the support 32, the bracket 31 can be better fixed and further prevented from shaking.

[0061] Of course, in other embodiments, the following techniques can be used to further prevent the bracket 31 from shaking: the inner diameter of the second through hole is set to be equal to the outer diameter of the connecting shaft 33, the third through hole is set to be a waist hole extending along the meshing direction of the gear, the extension length of the third through hole along the meshing direction of the gear is greater than the outer diameter of the connecting shaft 33, and the extension length of the third through hole along the extension direction of the rack is equal to the outer diameter of the connecting shaft 33; the number of bolts 34 and elastic members 35 are both two, the two bolts 34 are spaced apart along the extension direction of the rack, and the first ends 351 of the two elastic members 35 are respectively in contact with the heads 341 of the two bolts 34. By setting the third through hole as a waist hole, and through the action of the two bolts 34 and the elastic member 35, the bracket 31 and the driving mechanism 200 can be better fixed at the required position.

[0062] Specifically in this embodiment, the gap stabilizing mechanism 300 further includes a bearing 36, which is disposed on the outer peripheral side of the connecting shaft 33, and the bracket 31 and the support 32 are hinged through the connecting shaft 33 and the bearing 36. The bracket 31 and the support 32 are hinged through the bearing 36, so that when the bolt 34 is loosened and the support 32 is rotated outward and disassembled more smoothly.

[0063] When the gap stabilizing mechanism 300 is in normal use, the bracket 31 is hinged to the support 32, and the elastic member 35 is in contact with the bracket 31, which can ensure that the bracket 31 and the driving mechanism 200 are kept in a position where the gear and the rack are meshed without clearance. When the gap stabilizing mechanism 300 or the gear or rack needs to be repaired or replaced, the bolt 34 needs to be loosened and the bracket 31 removed.

[0064] Of course, in other embodiments, the gap stabilizing mechanism 300 may also include a copper sleeve, which is arranged on the outer peripheral side of the connecting shaft 33, and the bracket 31 and the support 32 are hinged through the connecting shaft 33 and the copper sleeve. The bracket 31 and the support 32 are hinged through the copper sleeve, which can also make it smoother when the bolt 34 is loosened and the support 32 is rotated outward and disassembled.

[0065] In this embodiment, the sheet metal assembly welding door frame further includes a nut, through which the bolt 34 is threadedly connected to the frame 100. The frame 100 and the bolt 34 are connected by the nut, that is, the bolt 34 only needs to pass through the frame 100 and be connected to the nut, and there is no need to set a threaded hole on the frame 100, which is more convenient for processing.

[0066] Of course, in other embodiments, threaded through holes may be provided on the frame 100, and the bolts 34 may be threadedly connected to the frame 100 through the threaded through holes. By providing threaded holes on the frame 100 so that the bolts 34 are threadedly connected to the frame 100, the number of parts of the gap stabilizing mechanism 300 can be reduced, and no nuts are required, so that the structure of the gap stabilizing mechanism 300 is simpler.

[0067] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A sheet metal assembly welding gantry, comprising a frame and a driving mechanism, wherein the side of the track with the rack is defined as the first side, and the side of the track without the rack is defined as the second side, and the gear of the driving mechanism is located on the first side, characterized in that: The thin plate assembly welding gantry also includes a gap stabilization mechanism, and the gap stabilization mechanism includes: A bracket, wherein the bracket has a first through hole and a second through hole penetrating the bracket in a vertical direction, and the first through hole is for the driving mechanism to pass through; A support, the support is fixed on the frame, and the support has a third through hole penetrating the support in a vertical direction; A connecting shaft, the connecting shaft being inserted into the second through hole and the third through hole; A bolt, along the meshing direction of the gear, the bolt is threadedly connected to the frame located on the second side, and the head of the bolt is located on the first side, The elastic member, along the compression direction of the elastic member, the first end of the elastic member abuts against the head of the bolt, and the second end of the elastic member abuts against the bracket.

2. The thin plate assembly welding gantry according to claim 1, characterized in that: The elastic member is a coil spring, and the coil spring is sleeved on the outer peripheral side of the bolt.

3. The sheet metal assembly welding gantry according to claim 1, characterized in that: The bracket further has a fourth through hole penetrating the bracket along the meshing direction of the gears, and the screw rod of the bolt is inserted into the fourth through hole.

4. The sheet metal assembly welding gantry according to claim 1, characterized in that: The inner peripheral side of the first through hole abuts against the driving mechanism.

5. The sheet metal assembly welding gantry according to claim 1, characterized in that: The bracket and the support are hinged via the connecting shaft.

6. The sheet metal assembly welding gantry according to claim 5, characterized in that: The gap stabilization mechanism also includes a bearing, which is arranged on the outer peripheral side of the connecting shaft, and the bracket and the support are hinged through the connecting shaft and the bearing.

7. The sheet metal assembly welding gantry as claimed in claim 5, characterized in that: The gap stabilization mechanism also includes a copper sleeve, which is arranged on the outer peripheral side of the connecting shaft, and the bracket and the support are hinged through the connecting shaft and the copper sleeve.

8. The sheet metal assembly welding gantry as claimed in claim 1, characterized in that: The inner diameter of the second through hole is equal to the outer diameter of the connecting shaft, the third through hole is a waist hole extending along the meshing direction of the gear, the extension length of the third through hole along the meshing direction of the gear is greater than the outer diameter of the connecting shaft, and the extension length of the third through hole along the extension direction of the rack is equal to the outer diameter of the connecting shaft; The number of the bolts and the number of the elastic members are both two, the two bolts are arranged at intervals along the extension direction of the rack, and the first ends of the two elastic members are respectively in contact with the heads of the two bolts.

9. The thin plate assembly welding gantry according to claim 1, characterized in that: The thin plate assembly welding portal frame also includes a nut, and the bolt is threadedly connected to the frame through the nut.

10. The sheet metal assembly welding gantry according to claim 1, characterized in that: The frame has a threaded through hole, and the bolt is threadedly connected to the frame through the threaded through hole.

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