Auxiliary welding equipment for bucket processing

Abstract

The application relates to the technical field of bucket welding, and particularly discloses an auxiliary welding device for bucket machining, which comprises a bottom plate, a positioning device, a supporting device and a driving cylinder arranged on the bottom plate; the positioning device comprises a positioning inner plate matched with a shell and used for positioning the shell; the supporting device comprises a connecting seat, a plurality of inner supporting plates matched with the connecting seat and a clamping piece mounted on the connecting seat; the driving cylinder is matched with the connecting seat to drive the connecting seat to move up and down; after the shell is welded, the driving cylinder drives the inner supporting plates to move through the connecting seat; after the inner supporting plates abut against the inner wall of the shell, the clamping piece clamps the shell to pre-fix the inner supporting plates; then, the inner supporting plates and the shell are welded together to support the shell; the auxiliary welding device for bucket machining has the effect of reducing the deformation of the shell.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of bucket welding, and in particular to an auxiliary welding device for bucket processing. BACKGROUND

[0002] As the core working component of engineering machinery, the bucket is mainly used for excavating, loading, transporting and short-distance transporting of bulk materials. It is suitable for various working conditions such as mining, construction, municipal administration and agriculture, and has the characteristics of high efficiency, wear resistance and strong load bearing capacity.

[0003] At present, when the bucket is processed, a welding process is needed to realize the connection of the bucket body and the bucket teeth, and the assembly of the overall structure of the bucket. However, the conventional welding process has the following problems. During the welding process, the local expansion and contraction of the metal caused by heat input, as well as the solidification shrinkage of the weld metal, will all generate stress inside the workpiece. After cooling, the uneven shrinkage will cause plastic deformation of the bucket, affecting the load bearing capacity and stiffness of the bucket. SUMMARY

[0004] The present application provides an auxiliary welding device for bucket processing, which aims to solve the problem of deformation of the bucket during welding in the related art.

[0005] The auxiliary welding device for bucket processing of the present application comprises a bottom plate, a positioning device, a supporting device and a driving cylinder arranged on the bottom plate. The positioning device comprises a positioning inner plate cooperating with and positioning the outer shell. The supporting device comprises a connecting seat, a plurality of inner supporting plates cooperating with the connecting seat, and a clamping piece mounted on the connecting seat. The driving cylinder cooperates with the connecting seat to drive the connecting seat to move up and down. After the outer shell is welded, the driving cylinder drives the inner supporting plates to abut against the inner wall of the outer shell through the connecting seat, and then the clamping piece clamps the outer shell to pre-fix the inner supporting plates, and then the inner supporting plates and the outer shell are welded together to support the outer shell.

[0006] Preferably, the connecting seat comprises a connecting plate cooperating with the driving cylinder and a placement plate arranged on the connecting plate. The placement plate is provided with a plurality of placement grooves corresponding to the plurality of inner supporting plates. The inner supporting plates are inserted into the placement grooves.

[0007] Preferably, an oil cavity filled with hydraulic oil is formed in the connecting plate, and a sliding groove communicating with the oil cavity is formed in the connecting plate. The placement plate is slidably assembled in the sliding groove. A sliding plate is slidably arranged in the oil cavity. A spring connected to the sliding plate is arranged on the side of the sliding plate away from the sliding groove. The spring is used to drive the sliding plate to move towards the sliding groove.

[0008] Preferably, the clamping piece comprises: a clamping rod, a clamping block and a clamping rod, the clamping rod is rotationally arranged on the side of the connecting plate, a torsional spring is arranged at the connecting position of the clamping rod and the connecting plate for driving the clamping rod to rotate towards the shell, the clamping block is coaxially connected with the clamping rod, a clamping groove is arranged on the side of the clamping block, a connecting rod is arranged on the side of the sliding plate close to the elastic member, the connecting rod extends to the outside of the connecting plate, the connecting rod is connected with the clamping rod to drive the clamping rod to move up and down, the clamping rod comprises a vertical part, and the vertical part is buckled with the clamping groove to fix the clamping rod; when the vertical part cooperates with the clamping groove, the clamping rod is separated from the shell, after the inner support plate abuts against the shell, the sliding plate and the connecting rod are driven to move, and the movement of the connecting rod drives the vertical part to separate from the clamping groove, so as to release the restriction on the clamping rod.

[0009] Preferably, the support device is provided with two groups, and the two groups of support devices are arranged close to the two sides of the shell, respectively, a rotating plate is rotationally arranged in the placing groove, and the rotating plate abuts against the side surface of the inner support plate.

[0010] Preferably, the connecting plate is provided with a plurality of clamping rings on the side close to the bottom plate, and the output end of the driving cylinder is provided with a clamping plate buckled with the clamping ring.

[0011] Preferably, the positioning device further comprises: a positioning frame and a blocking rod, the positioning inner plate and the blocking rod are both provided with two groups, the blocking rod is arranged on the side of the positioning inner plate away from the other positioning inner plate, and the positioning inner plate and the blocking rod are respectively matched with the two sides of the side panel to fix the side panel, and the positioning frame is provided with a positioning groove matched with the main shaft of the bucket.

[0012] Preferably, a plurality of bottom rods are arranged on the bottom plate, the bottom rods are located between the blocking rods and the positioning inner plates, and the ends of the bottom rods away from the bottom plate abut against the side edges of the side panel, so that the side panel cooperates with the shell.

[0013] Preferably, the clamping rod and the placing plate are arranged in the same plane, the clamping block is provided with two clamping rods corresponding to the two sides of the clamping rod, respectively, and the clamping rod comprises two vertical parts corresponding to the clamping block.

[0014] Preferably, the clamping piece is provided with a plurality of clamping pieces along the arrangement direction of the plurality of inner support plates.

[0015] Advantages:

[0016] 1. The inner support plates are arranged in the shell to support the shell after the shell is welded, and the plurality of inner support plates support a plurality of points in the shell to reduce the deformation of the shell, facilitate subsequent processing and improve the load capacity and rigidity of the bucket.

[0017] 2. After the welding of the outer shell is completed, the driving cylinder drives the connecting plate to move upwards, after the inner support plate abuts against the inner wall of the outer shell, when the connecting plate continues to move, the sliding plate will move to drive the vertical part to separate from the clamping groove, thereby releasing the restriction on the clamping rod, so that the clamping rod is clamped on the outer shell, and then the inner support plate is pre-fixed after abutting against the inner wall of the outer shell, so as to weld the inner support plate after the outer shell is removed, thereby realizing the support of the outer shell.

[0018] 3. The oil cavity filled with hydraulic oil is arranged in the connecting plate, and as the inner support plate abuts against the outer shell, the placing plate moves towards the oil cavity and the pressure in the oil cavity increases, the oil pressure is evenly distributed on the plurality of placing plates, so that the abutting force between each inner support plate and the outer shell is the same, and the fit degree is the same, and after the inner support plate and the outer shell are welded, the outer shell is uniformly stressed. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the overall structure schematic diagram of the present application.

[0020] Figure 2 It is the structure schematic diagram of the positioning device in the present application.

[0021] Figure 3 It is the cooperation schematic diagram of the positioning frame and the main shaft in the present application.

[0022] Figure 4 It is the cooperation state schematic diagram of the inner support plate and the outer shell in the present application.

[0023] Figure 5 It is the structure schematic diagram of the inner support plate in the present application.

[0024] Figure 6 It is the structure view of the supporting device in the present application.

[0025] Figure 7 It is the structure diagram of the connecting plate in the present application.

[0026] Figure 8 It is the internal structure schematic diagram of the connecting plate in the present application.

[0027] Figure 9 It is the structure schematic diagram of the clamping piece in the present application.

[0028] Figure 10 It is the local explosion schematic diagram of the clamping rod and the clamping block in the present application.

[0029] REFERENCE SIGNS:

[0030] 1, bucket; 11, shell; 111, arc-shaped steel plate; 112, straight steel plate; 12, side panel; 13, lug; 14, main shaft; 2, bottom plate; 21, bottom rod; 3, positioning device; 31, positioning inner plate; 32, positioning frame; 321, positioning groove; 33, blocking rod; 4, supporting device; 41, connecting seat; 411, connecting plate; 412, placing plate; 42, inner supporting plate; 43, clamping piece; 431, clamping rod; 432, clamping block; 433, clamping rod; 434, vertical part; 5, driving cylinder; 6, placing groove; 61, rotating plate; 7, clamping ring; 71, clamping plate; 8, oil cavity; 81, sliding plate; 82, elastic piece; 83, connecting rod; 84, sliding groove; 9, clamping groove; 91, clamping part. DETAILED DESCRIPTION

[0031] The embodiments of the present application are described in detail below with reference to the accompanying drawings. The embodiments described below are exemplary and are intended to explain the present application, and are not to be understood as limiting the present application.

[0032] As shown in Figures 1 to 10 , the auxiliary welding equipment for bucket processing of the present application comprises a bottom plate 2 and a positioning device 3, a supporting device 4, and a driving cylinder 5 arranged on the bottom plate 2. The positioning device 3 is used to position the parts to be welded on the bucket 1 after splicing, and then the shell 11 is welded. Then the driving cylinder 5 cooperates with the supporting device 4 to support and fix the welded shell 11, so as to reduce the deformation amount of the shell 11.

[0033] In this embodiment, the bucket 1 comprises a shell 11, side panels 12 located on both sides of the shell 11, lugs 13 located on the outer side of the shell 11, and a main shaft 14 connected with the lugs 13. The shell 11 is processed by welding straight steel plates 112 on both ends of the arc-shaped steel plate 111.

[0034] Referring to Figure 1 , Figure 2 , Figure 3 , the positioning device 3 comprises a positioning inner plate 31, a positioning frame 32, and a blocking rod 33. The positioning inner plate 31 is arranged perpendicular to the bottom plate 2. The positioning inner plate 31 and the blocking rod 33 are both provided with two groups. The blocking rod 33 is located on the side of the positioning inner plate 31 away from the other positioning inner plate 31. The blocking rod 33 is arranged in a spaced manner with the positioning inner plate 31, and the two are used to place the side panel 12. The shape of the positioning inner plate 31 corresponds to the inner side of the shell 11. The positioning frame 32 is arranged between the two positioning inner plates 31. The positioning groove 321 is formed on the positioning frame 32, and is used to position the main shaft 14.

[0035] In the welding, the arc-shaped steel plate 111 and the straight steel plate 112 are placed on the positioning inner plate 31, and the parts to be welded are butt jointed, then the side plate 12 is placed between the blocking rod 33 and the positioning inner plate 31, the side plate 12 is fixed by the blocking rod 33 and the positioning inner plate 31, and the side plate 12 is butt jointed with the side of the shell 11, then welding is sequentially carried out, then the main shaft 14 is placed in the positioning groove 321 to pre-fix the lug 13 at the specified position outside the shell 11, then the lug 13 is welded. In addition, a plurality of bottom rods 21 are arranged on the bottom plate 2, the bottom rods 21 are located between the blocking rod 33 and the positioning inner plate 31, the plurality of bottom rods 21 and the side plate 12 are arranged in the same plane, the end of the bottom rod 21 away from the bottom plate 2 abuts against the side edge of the side plate 12 to support the side plate 12, so that the side plate 12 cooperates with the shell 11.

[0036] Referring to Figure 2 , Figure 6 , Figure 7 , the supporting device 4 comprises a connecting seat 41, an inner support plate 42 and a clamping piece 43, the connecting seat 41 cooperates with the driving cylinder 5, the driving cylinder 5 is used to drive the connecting seat 41 to move up and down, the inner support plate 42 is connected with the connecting seat 41, and the clamping piece 43 is arranged on the connecting seat 41.

[0037] Referring to Figure 4 , Figure 5 , a plurality of inner support plates 42 are arranged along the length direction of the connecting seat 41, and the shape of the inner support plate 42 corresponds to the inner side of the shell 11.

[0038] Initially, the connecting seat 41 is placed close to the bottom plate 2, then the inner support plate 42 is placed on the connecting seat 41, and when the arc-shaped steel plate 111 and the straight steel plate 112 are placed, the inner support plate 42 does not abut against the arc-shaped steel plate 111 and the straight steel plate 112. After the welding of the shell 11 is completed, the connecting seat 41 is driven upward by the driving cylinder 5, the outer side of the inner support plate 42 abuts against the inner side of the shell 11, after the inner support plate 42 abuts against the shell 11, the clamping piece 43 clamps and cooperates with the shell 11, thereby pre-fixing the inner support plate 42, then the shell 11 is lifted by using a lifting device such as a crane, and then placed on the ground after being turned over, then the inner support plate 42 and the shell 11 are welded together, wherein the inner support plate 42 and the shell 11 are welded together through a plurality of points, and the shell 11 is supported by the inner support plate 42 to reduce the deformation of the shell 11.

[0039] After the shell 11 is completely shaped, a cutting machine is used to cut the welding between the inner support plate 42 and the shell 11, so as to remove the inner support plate 42, and the corresponding welding points in the shell 11 are polished for subsequent processing.

[0040] The conventional welding mode, after the shell 11 is welded, the deformation amount is greater than 5mm. By setting the inner support plate 42 to support the shell 11, the deformation amount is less than 2mm, which provides effective guarantee for the subsequent combination welding of other parts.

[0041] With reference to Figure 6 、 Figure 7 The connecting seat 41 comprises a connecting plate 411 and a placing plate 412, the connecting plate 411 cooperates with the driving cylinder 5, the placing plate 412 is arranged on the connecting plate 411, and the placing plate 412 is provided with a plurality of placing grooves 6 corresponding to the plurality of inner support plates 42.

[0042] Before welding, the inner support plate 42 is inserted into the placing groove 6, so that the inner support plate 42 maintains a vertical state with the bottom plate 2, so as to facilitate the subsequent abutment between the inner support plate 42 and the inner wall of the shell 11.

[0043] With reference to Figure 2 、 Figure 8 The connecting plate 411 is provided with a clamping ring 7 on the side close to the bottom plate 2, the clamping ring 7 and the driving cylinder 5 are both provided with a plurality of clamping plates 71, and the output end of the driving cylinder 5 is provided with a clamping plate 71. The clamping plate 71 is buckled with the clamping ring 7. That is, the connecting plate 411 is placed on the output end of the driving motor by buckling the clamping ring 7 and the clamping plate 71, that is, the connecting plate 411 can be removed from the output end of the driving cylinder 5. After the clamping piece 43 clamps the shell 11, the shell 11 is removed from the positioning inner plate 31, and the clamping ring 7 and the clamping plate 71 are separated. After the inner support plate 42 is welded and fixed with the shell 11, the clamping piece 43 is separated from the shell 11, and then the connecting plate 411 is removed from the inner support plate 42.

[0044] With reference to Figure 7 、 Figure 8 、 Figure 9 An oil cavity 8 is arranged in the connecting plate 411, the oil cavity 8 is filled with hydraulic oil, a sliding groove 84 is arranged in the connecting plate 411 and communicates with the oil cavity 8, and the placing plate 412 is assembled in the sliding groove 84 in an up-down sliding mode. A sliding plate 81 is assembled in the oil cavity 8 in an up-down sliding mode, and the hydraulic oil is filled on the side of the sliding plate 81 close to the sliding groove 84. A spring 82 is arranged on the side of the sliding plate 81 away from the sliding groove 84, the spring 82 is arranged as a spring, and the spring is used to drive the sliding plate 81 to move in the direction towards the sliding groove 84, so that the sliding plate 81 moves close to the sliding groove 84 to apply pressure to the hydraulic oil in the oil cavity 8.

[0045] By setting the sliding plate 81 and filling the hydraulic oil in the oil cavity 8, after the inner support plate 42 abuts against the inner wall of the shell 11, the connecting plate 411 is continuously moved, the inner support plate 42 drives the placement plate 412 to move in the sliding groove 84, so that the oil pressure in the oil cavity 8 increases, and the plurality of sliding grooves 84 are communicated with the oil cavity 8, so that the oil pressure is uniformly distributed on the plurality of placement plates 412, thereby making the abutting force of the plurality of inner support plates 42 and the shell 11 uniform, so that the shell 11 is uniformly stressed.

[0046] With reference to Figure 9 , the support device 4 is provided with two groups, and the two groups of support devices 4 are respectively arranged near the two sides of the shell 11, that is, the two groups of support devices 4 are arranged at intervals, and the rotating plate 61 is rotatably arranged in the placement groove 6. The rotating plate 61 abuts against the side surface of the inner support plate 42.

[0047] When the connecting plate 411 moves upward to drive the inner support plate 42 to abut against the shell 11, the inner support plate 42 can rotate relative to the placement plate 412, so that the inner support plate 42 is attached to and abuts against the inner wall of the shell 11. At the same time, the two groups of support devices 4 are arranged to support the inner support plate 42, so as to improve the stability of the cooperation between the inner support plate 42 and the shell 11.

[0048] With reference to Figure 6 , Figure 7 , Figure 9 , Figure 10 , the clamping piece 43 comprises a clamping rod 431, a clamping block 432 and a clamping rod 433. The clamping rod 431 is rotatably arranged on the side surface of the connecting plate 411. A torsional spring (not shown in the figure) is arranged at the connection between the clamping rod 431 and the connecting plate 411. The torsional spring is used to drive the clamping rod 431 to rotate towards the shell 11. The clamping rod 431 comprises a clamping portion 91. When the clamping rod 431 clamps the shell 11, the clamping portion 91 abuts against the outside of the shell 11. The clamping block 432 is arranged on the side surface of the clamping rod 431 and coaxially connected with the clamping rod 431. A clamping groove 9 is arranged on the side surface of the clamping block 432. The side of the sliding plate 81 close to the elastic piece 82 is provided with a connecting rod 83. The connecting rod 83 penetrates through the connecting plate 411 and extends to the outside of the connecting plate 411. The connecting rod 83 is connected with the clamping rod 433, that is, the connecting rod 83 and the clamping rod 433 can move up and down with the sliding plate 81. The clamping rod 433 is close to the vertical portion 434. The vertical portion 434 is arranged in the vertical direction and located on the side of the connecting plate 411 close to the clamping rod 431. The vertical portion 434 cooperates with the clamping groove 9.

[0049] Initially, the clamping part 91 of the clamping rod 431 is away from the shell, at this time the vertical part 434 is buckled with the clamping groove 9, and the torsional spring is always in a stressed state during the process. After the inner support plate 42 abuts against the inner wall of the shell 11, the connecting plate 411 is continuously moved upward, and with the increase of oil pressure, the sliding plate 81 is driven to move, the sliding plate 81 moves through the connecting rod 83 to drive the clamping rod 433 to move, and then the vertical part 434 is driven to move downward, after the vertical part 434 moves to be separated from the clamping groove 9, the restriction of the clamping rod 431 is contacted, and the torsional spring drives the clamping rod 431 to abut against the shell 11, so as to realize the pre-fixing of the inner support plate 42.

[0050] With reference to Figure 7 The clamping parts 43 are arranged at intervals along the arrangement direction of the inner support plate 42, and through the plurality of clamping parts 43, the cooperation with a plurality of points of the shell 11 is realized, and then the stability of the cooperation between the inner support plate 42 and the shell 11 is improved.

[0051] The plurality of clamping parts 43 and the plurality of inner support plates 42 are arranged one by one, the clamping rod 431 and the placing plate 412 are arranged in the same plane, that is, when the clamping rod 431 cooperates with the shell 11, the position of the clamping rod 431 clamping the shell 11 corresponds to the supporting position of the inner support plate 42, so as to ensure the stability of the cooperation.

[0052] With reference to Figure 10 The clamping block 432 is arranged at two sides of the clamping rod 431 respectively, the clamping rod 433 includes two vertical parts 434, and the two vertical parts 434 are arranged one by one with the two clamping blocks 432. Through the cooperation of the two vertical parts 434 and the two clamping blocks 432, the stability when cooperating with the clamping rod 431 is improved.

[0053] The implementation principle of the present application is that after the shell 11 is welded, the connecting plate 411 is driven to move upward by the driving cylinder 5, the connecting plate 411 is moved to abut against the inner wall of the shell 11, the sliding plate 81 is driven to move by increasing the oil pressure, the sliding plate 81 is moved to drive the clamping rod 433 to move through the connecting rod 83, until the vertical part 434 is separated from the clamping groove 9, the restriction of the clamping rod 431 is released, the torsional spring drives the clamping rod 431 to abut against the shell 11 to clamp, so as to pre-fix the plurality of inner support plates 42 in the shell 11, and the inner support plate 42 can be quickly placed at the specified position in the shell 11.

[0054] Then the shell 11 is removed from the inner positioning inner plate 31, and then the inner support plate 42 is fixed in the shell 11 by multi-point welding to support the shell 11. Then the clamping rod 431 is rotated so that the vertical part 434 is buckled with the clamping groove 9 again to remove the connecting plate 411. After the shell 11 is processed, the inner support plate 42 is removed from the shell 11 by using a cutting machine. By setting the inner support plate 42 to support the shell 11 during welding processing, the deformation amount of the shell 11 is reduced to facilitate subsequent processing, while the carrying capacity and stiffness of the bucket 1 are ensured.

[0055] Although the embodiments of the present application have been shown and described above, it should be understood by those skilled in the art that the above embodiments are exemplary and cannot be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. An auxiliary welding device for bucket processing, comprising a base plate, characterized in that, The base plate is equipped with a positioning device, a support device, and a drive cylinder. The positioning device includes an inner positioning plate that mates with the outer shell and positions it. The support device includes a connecting seat, multiple inner support plates that mate with the connecting seat, and a clamping component mounted on the connecting seat. The drive cylinder mates with the connecting seat to move the connecting seat up and down. After the outer shell is welded, the drive cylinder moves the inner support plates through the connecting seat until they abut against the inner wall of the outer shell. The clamping component then clamps the outer shell to pre-fix the inner support plates. Subsequently, the inner support plates are welded together with the outer shell to support it. The connecting seat includes a connecting plate that mates with the drive cylinder and a placement plate on the connecting plate. Multiple placement plates are provided corresponding to the multiple inner support plates. The placement plate has a placement groove, and the inner support plates are inserted into the placement groove. The connecting plate has an oil cavity filled with hydraulic oil and a sliding groove communicating with the oil cavity. The placement plate is slidably mounted in the sliding groove. A sliding plate is slidably mounted in the oil cavity. A spring is provided on the side of the sliding plate away from the sliding groove, which is used to move the sliding plate toward the sliding groove. The clamping component includes: a clamping rod, a locking block, and a locking rod. The clamping rod is rotatably mounted on the side of the connecting plate. A torsion spring is provided at the connection between the clamping rod and the connecting plate to drive the clamping rod to rotate towards the outer shell. The locking block is coaxially connected to the clamping rod, and a locking groove is provided on the side of the locking block. A connecting rod is provided on the side of the sliding plate near the spring element. The connecting rod extends to the outside of the connecting plate and is connected to the locking rod to drive the locking rod to move up and down. The locking rod includes a vertical part, which engages with the locking groove to fix the locking rod. When the vertical part is engaged with the locking groove, the clamping rod separates from the outer shell. After the inner support plate abuts against the outer shell, it drives the sliding plate and connecting rod to move. The movement of the connecting rod causes the vertical part to separate from the slot, thereby releasing the restriction on the clamping rod. There are two sets of support devices, which are respectively set close to both sides of the outer shell. A rotating plate is rotatably set in the placement slot, and the rotating plate abuts against the side of the inner support plate. The clamping rod and the placement plate are set in the same plane. There are two clamping blocks on each side of the clamping rod. The clamping rod includes two vertical parts corresponding to the clamping blocks. There are multiple clamping components arranged along the arrangement direction of multiple inner support plates.

2. The auxiliary welding equipment for bucket processing according to claim 1, characterized in that, The connecting plate has multiple retaining rings on the side near the base plate, and the output end of the drive cylinder has a retaining plate for retaining ring engagement.

3. The auxiliary welding equipment for bucket processing according to claim 1, characterized in that, The positioning device also includes: a positioning frame and a stop bar. The positioning inner plate and the stop bar are each provided with two sets. The stop bar is located on the side of the positioning inner plate away from the other positioning inner plate. The positioning inner plate and the stop bar respectively cooperate with the two sides of the side panel to fix the side panel. The positioning frame is provided with a positioning groove that cooperates with the main shaft of the bucket.

4. The auxiliary welding equipment for bucket processing according to claim 3, characterized in that, Multiple bottom rods are provided on the base plate. The bottom rods are located between the stop bar and the positioning inner plate. The end of the bottom rod away from the base plate abuts against the side edge of the side panel so that the side panel fits with the outer shell.

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