A welding tool for counterweight of construction machinery

Abstract

The present invention relates to the technical field of welding tooling, and discloses a welding tooling for counterweights of construction machinery, comprising a base, a horizontal thrust cylinder fixedly connected to one end of the top of the base, a translation frame fixedly connected to the output end of the horizontal thrust cylinder, a flip cylinder intersecting both ends of the translation frame, a connecting plate provided on the top of the translation frame, symmetrically arranged left-end support plates fixedly connected to both ends of the top of the connecting plate, a connecting rod provided between the two left-end support plates, the two ends of the connecting rod respectively fixedly connected to the two left-end support plates, the output end of the flip cylinder hinged to the left-end support plate, a left-side fixing assembly connected to the side of the left-end support plate away from the horizontal thrust cylinder, and a right-end support plate fixedly connected to one end of the top of the base away from the horizontal thrust cylinder. This welding tooling for counterweights of construction machinery has less obstruction to the welding position of the counterweight, and the tooling does not have a supporting structure or connector for temporary fixing, so the welding of the counterweight is simpler and more convenient, which is conducive to improving production efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of welding tooling, in particular to a welding tooling for a counterweight of an engineering machinery. Background Art

[0002] The counterweight of an excavator is an important component of the excavator. Its main function is to increase the stability and anti-overturning ability of the excavator. Specifically, the counterweight of an excavator is usually a heavy block or plate installed at the rear of the excavator. Its weight and position are carefully designed to ensure that the center of gravity of the excavator remains within a reasonable range under various working conditions, thereby maintaining the balance and stability of the excavator.

[0003] When welding the current counterweight, it is necessary to first use tools such as clamps and positioning pins to fix the steel plate on the welding platform, and then install the necessary supporting structure and connecting parts on the steel plate before welding the counterweight. After welding is completed, the supporting structure and connecting parts need to be disassembled before the counterweight can be removed.

[0004] Since the existing counterweight needs to install temporary support structures and connectors on the steel plate when welding, and these temporary support structures and connectors need to be removed after welding, the existing counterweight is inconvenient to weld and it is difficult to improve production efficiency. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a welding tool for a counterweight of an engineering machinery to solve the problems raised in the background art, thereby making the welding of the counterweight more convenient and increasing the production efficiency.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a welding tool for a balancing weight of an engineering machinery, comprising a base, one end of the top of the base is fixedly connected to a transverse thrust cylinder, the output end of the transverse thrust cylinder is fixedly connected to a translation frame, both ends of the translation frame are intersected with a flip cylinder, a connecting plate is provided on the top of the translation frame, both ends of the top of the connecting plate are fixedly connected to symmetrically arranged left end support plates, a connecting rod is provided between the two left end support plates, the two ends of the connecting rod are respectively fixedly connected to the two left end support plates, the output end of the flip cylinder is hinged to the left end support plate, the left end support plate is connected to a left fixed assembly on the side away from the transverse thrust cylinder, the top end of the base is fixedly connected to a right end support plate on the end away from the transverse thrust cylinder, the middle position of the right end support plate on the side away from the transverse thrust cylinder is connected to a top fixed assembly, the lower end of the right end support plate is connected to a positioning assembly, and a control console is provided at one end of the base.

[0007] Furthermore, the left-side fixing assembly includes a positioning frame, an upper fixing block and a lower support plate, the positioning frame is fixedly connected to the left-end support plate on the side away from the right-end support plate, the bottom of the upper fixing block is fixedly connected to the top of the positioning frame, and the top of the lower support plate is fixedly connected to the bottom of the positioning frame.

[0008] Furthermore, the positioning frame includes an upper positioning arc plate, a lower positioning arc plate and a reinforcing plate, the upper positioning arc plate and the lower positioning arc plate are fixedly connected to the left support plate on one side away from the right support plate, the top of the reinforcing plate is fixedly connected to the bottom of the upper positioning arc plate, and the bottom of the reinforcing plate is fixedly connected to the top of the lower positioning arc plate.

[0009] Furthermore, the top fixing assembly includes an upward push cylinder, a motor and a pressure plate, the upward push cylinder is fixedly connected to the right end support plate, the bottom of the motor is fixedly connected to the output end of the upward push cylinder, and the bottom of one end of the pressure plate is fixedly connected to the output end of the motor.

[0010] Furthermore, the pressing plate is T-shaped, and an anti-slip plate is fixedly connected to a side of the pressing plate away from the motor.

[0011] Furthermore, the positioning assembly includes a mounting plate, a fixed cylinder, and a fixed frame. The mounting plate is fixedly connected to the right end support plate, the fixed cylinder is fixedly connected to the mounting plate, and one side of the fixed frame is fixedly connected to the output end of the fixed cylinder.

[0012] Furthermore, the side walls at both ends of the fixing frame are fixedly connected with side positioning blocks, and the upper ends of the opposite surfaces of the two side positioning blocks are provided with guiding inclined surfaces.

[0013] Furthermore, guide rails are fixedly connected to both sides of the top of the base, and the translation frame is slidably connected to the guide rails.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. This type of welding fixture for the counterweight of construction machinery has less obstruction on the welding position of the counterweight and has no supporting structure or connecting parts for temporary fixing, so the welding of the counterweight will be simpler and more convenient, which is conducive to improving production efficiency.

[0016] 2. After the arc plate, top plate and vertical plate of the counterweight are welded, the turning cylinder can be started to turn the counterweight to a horizontal state, and then the bottom plate can be squeezed and fixed to the bottom of the counterweight through the anti-slip plate. This way, the bottom plate of the counterweight has more space during welding, which is more convenient for operation.

[0017] 3. For this type of construction machinery counterweight welding fixture, when placing the vertical plate on the fixed frame, the side positioning blocks will guide and restrict the vertical plate, so that the vertical plate is in the middle position, thereby facilitating the vertical plate to enter the interior of the curved plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0020] Figure 3 It is a schematic structural diagram of another state of the present invention as a whole;

[0021] Figure 4 It is a schematic diagram of the connection structure of the base, the left end support plate and the right end support plate of the present invention;

[0022] Figure 5 It is a schematic diagram of the connection structure between the base and the translation frame of the present invention;

[0023] Figure 6 It is a schematic diagram of the connection structure between the left end support plate and the positioning frame of the present invention;

[0024] Figure 7 It is a schematic diagram of the connection structure between the right support plate and the upward push cylinder of the present invention;

[0025] Figure 8 It is a schematic diagram of the connection structure between the right support plate and the side positioning block of the present invention;

[0026] Fig. 9 It is a schematic diagram of the connection structure between the fixing frame and the side positioning block of the present invention;

[0027] Fig.10 It is a schematic diagram of the structure of the existing counterweight when it is unfolded.

[0028] In the figure: 1. base; 2. guide rail; 3. horizontal push cylinder; 4. translation frame; 5. connecting plate; 6. left end support plate; 7. positioning frame; 701. upper end positioning arc plate; 702. lower end positioning arc plate; 703. reinforcement plate; 8. upper end fixing block; 9. lower end support plate; 10. flip cylinder; 11. right end support plate; 12. push cylinder; 13. motor; 14. pressure plate; 15. mounting plate; 16. fixed cylinder; 17. fixed frame; 18. side positioning block; 19. connecting rod; 20. anti-slip plate; 21. arc plate; 22. vertical plate; 23. top plate; 24. bottom plate; 25. control console. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] See also Figures 1 to 10 A welding tool for counterweight of engineering machinery comprises a base 1, one end of the top of the base 1 is fixedly connected to a transverse thrust cylinder 3, the output end of the transverse thrust cylinder 3 is fixedly connected to a translation frame 4, both ends of the translation frame 4 are connected to a flip cylinder 10, a connecting plate 5 is provided on the top of the translation frame 4, both ends of the top of the connecting plate 5 are fixedly connected to symmetrically arranged left end support plates 6, a connecting rod 19 is provided between the two left end support plates 6, the two ends of the connecting rod 19 are respectively fixedly connected to the two left end support plates 6, the output end of the flip cylinder 10 is hinged to the left end support plate 6, the side of the left end support plate 6 away from the transverse thrust cylinder 3 is connected to a left fixing component, the end of the top of the base 1 away from the transverse thrust cylinder 3 is fixedly connected to a right end support plate 11, the middle position of the right end support plate 11 away from the transverse thrust cylinder 3 is connected to a top fixing component, the lower end of the right end support plate 11 is connected to a positioning component, and a control console 25 is provided at one end of the base 1.

[0031] The welding tooling for the counterweight of the engineering machinery in the present invention only needs to make the left end support plate 6 in a vertical state when fixing the raw material of the counterweight, and keep a certain distance between the left end support plate 6 and the right end support plate 11, and then place the arc plate 21 of the counterweight on the left side fixing component of the left end support plate 6 close to the right end support plate 11 (if it is difficult for the staff to place the arc plate 21 directly on the left side fixing component in a vertical state by using equipment such as a crane, the upper end of the left side fixing component can be driven by the turning cylinder 10 to turn a certain angle in the direction away from the right end support plate 11, so that the arc plate 21 is placed on the left side fixing component of the left end support plate 6 close to the right end support plate 11). The curved plate 21 is easier to be placed on the left fixing assembly. After the curved plate 21 is placed on the left fixing assembly, the left fixing assembly and the curved plate 21 are flipped back to the vertical state by the flipping cylinder 10), and the vertical plate 22 of the counterweight is placed on the side of the right end support plate 11 close to the left end support plate 6, and the bottom of the vertical plate 22 is placed on the positioning assembly, and then the curved plate 21 is pushed toward the vertical plate 22 by the horizontal pushing cylinder 3, so that the vertical plate 22 is stuck on the inner side of the curved plate 21, and then the top plate 23 is placed on the top of the curved plate 21, and the top plate 23 is fixed by the top fixing assembly (that is, Figure 1 and Figure 2 ), then the arc plate 21, the vertical plate 22 and the top plate 23 of the counterweight can be welded by an external welding robot. After the arc plate 21, the top plate 23 and the vertical plate 22 of the counterweight are welded, the turning cylinder 10 can be started to turn the counterweight to a horizontal state, and then the bottom plate 24 can be fixed to the bottom of the counterweight for welding (i.e. Figure 3At the same time, the electrical equipment such as the horizontal thrust cylinder 3 and the flip cylinder 10 involved in the present invention are electrically connected to the control console 25. When the staff operates the equipment, they only need to control it through the control console 25. Since these electrical equipment belong to the existing mature technology, they will not be elaborated in detail here.

[0032] As a preferred technical solution of the present invention, the left-side fixing component includes a positioning frame 7, an upper fixing block 8 and a lower support plate 9. The side of the positioning frame 7 away from the right-end support plate 11 is fixedly connected to the left-end support plate 6, the bottom of the upper fixing block 8 is fixedly connected to the top of the positioning frame 7, and the top of the lower support plate 9 is fixedly connected to the bottom of the positioning frame 7.

[0033] Specifically, the bottom of the arc plate 21 is supported by the lower end support plate 9, and the arc plate 21 is restricted and positioned by the upper end fixing block 8. At the same time, the positioning frame 7 will fit with the arc surfaces at both ends of the arc plate 21 to prevent the arc plate 21 from shaking, so that the arc plate 21 can be fixed more firmly.

[0034] As a preferred technical solution of the present invention, the positioning frame 7 includes an upper positioning arc plate 701, a lower positioning arc plate 702 and a reinforcing plate 703. The upper positioning arc plate 701 and the lower positioning arc plate 702 are fixedly connected to the left support plate 6 on one side away from the right support plate 11, the top of the reinforcing plate 703 is fixedly connected to the bottom of the upper positioning arc plate 701, and the bottom of the reinforcing plate 703 is fixedly connected to the top of the lower positioning arc plate 702.

[0035] Specifically, the upper positioning arc plate 701 and the lower positioning arc plate 702 will fit with the arc surface of the arc plate 21, so that the arc plate 21 is fixed more firmly, and the reinforcing plate 703 will reinforce the upper positioning arc plate 701 and the lower positioning arc plate 702 to prevent the upper positioning arc plate 701 and the lower positioning arc plate 702 from being bent by the arc plate 21, causing the upper positioning arc plate 701 and the lower positioning arc plate 702 to be damaged and unable to play a supporting and limiting role.

[0036] As a preferred technical solution of the present invention, the top fixing assembly includes an upward push cylinder 12, a motor 13 and a pressure plate 14. The upward push cylinder 12 is fixedly connected to the right end support plate 11, the bottom of the motor 13 is fixedly connected to the output end of the upward push cylinder 12, and the bottom of one end of the pressure plate 14 is fixedly connected to the output end of the motor 13.

[0037] Specifically, after the top plate 23 is placed on the top of the arc plate 21, the motor 13 can be started to rotate the pressing plate 14 to the top of the top plate 23, and then the push-up cylinder 12 can be started to press the pressing plate 14 on the top of the top plate 23, so that the top plate 23 can be fixed. After the welding of the position where the top plate 23 contacts the arc plate 21 is completed, the push-up cylinder 12 can be started again to raise the pressing plate 14, and then the motor 13 can be started again to drive the pressing plate 14 to rotate in the opposite direction to the original position ( Figure 4 The middle pressure plate 14 is located at the position where the pressure plate 14 is located, so that the pressure plate 14 and the top plate 23 are staggered, so that the contact position between the vertical plate 22 and the top plate 23 is exposed, which is convenient for the welding robot to weld the contact position between the top plate 23 and the vertical plate 22.

[0038] As a preferred technical solution of the present invention, the pressing plate 14 is T-shaped, and an anti-slip plate 20 is fixedly connected to a side of the pressing plate 14 away from the motor 13 .

[0039] Specifically, after the arc plate 21, the vertical plate 22 and the top plate 23 are welded, the arc plate 21 can be rotated as a whole by the flip cylinder 10 until the arc plate 21 rotates to a horizontal state (i.e. Figure 3 The motor 13 then drives the pressure plate 14 and the anti-slip plate 20 to rotate in the direction of the horizontal push cylinder 3, so that the anti-slip plate 20 and the top plate 23 are in a parallel state. The bottom plate 24 is then placed on the bottom of the arc plate 21, and the arc plate 21 is driven by the horizontal push cylinder 3 to move in the direction of the anti-slip plate 20, and the bottom plate 24 is squeezed and fixed by the anti-slip plate 20, thereby facilitating the welding robot to weld and fix the bottom plate 24.

[0040] As a preferred technical solution of the present invention, the positioning assembly includes a mounting plate 15, a fixed cylinder 16, and a fixed frame 17. The mounting plate 15 is fixedly connected to the right end support plate 11, the fixed cylinder 16 is fixedly connected to the mounting plate 15, and one side of the fixed frame 17 is fixedly connected to the output end of the fixed cylinder 16.

[0041] As a preferred technical solution of the present invention, side walls at both ends of the fixed frame 17 are fixedly connected with side positioning blocks 18, and upper ends of the opposite surfaces of the two side positioning blocks 18 are provided with guiding inclined surfaces.

[0042] Specifically, when placing the vertical plate 22, the fixed cylinder 16 will first push the fixed frame 17 in the direction of the horizontal pushing cylinder 3, so that the side positioning block 18 is on the side of the right end support plate 11 close to the horizontal pushing cylinder 3, and then the vertical plate 22 will be placed on the fixed frame 17 from top to bottom. In the process of placing the vertical plate 22, the side positioning block 18 will restrict the vertical plate 22, so that the vertical plate 22 is in the middle position, which is convenient for the vertical plate 22 to be aligned with the curved plate 21. After the vertical plate 22 is completely placed on the fixed frame 17, the fixed cylinder 16 can be started again, and the fixed frame 17 can be driven by the fixed cylinder 16 to move in the direction away from the horizontal pushing cylinder 3, and the vertical plate 22 can be clamped and fixed by the fixed frame 17.

[0043] As a preferred technical solution of the present invention, guide rails 2 are fixedly connected to both sides of the top of the base 1 , and the translation frame 4 is slidably connected to the guide rails 2 .

[0044] Specifically, the guide rail 2 is used to fix and restrict the translation frame 4, so that the horizontal push cylinder 3 can drive the translation frame 4 to move.

[0045] It is worth noting that the horizontal thrust cylinder 3, the tilting cylinder 10, the upward thrust cylinder 12, the motor 13 and the fixed cylinder 16 involved in the present invention are all existing mature products, so they will not be described in detail here, and the above-mentioned electrical equipment are all electrically connected to the control console 25, and the staff can control it through the control console 25. The control console 25 can also be understood as a control system, which can be directly connected to other external control systems (such as a control cabinet, etc.). Since the control system belongs to the existing mature technology, it will not be elaborated on here.

[0046] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A welding tool for counterweight of construction machinery, characterized in that: The invention comprises a base (1), one end of the top of the base (1) is fixedly connected to a horizontal thrust cylinder (3), the output end of the horizontal thrust cylinder (3) is fixedly connected to a translation frame (4), both ends of the translation frame (4) are connected to a flip cylinder (10), a connecting plate (5) is provided on the top of the translation frame (4), both ends of the top of the connecting plate (5) are fixedly connected to symmetrically arranged left end support plates (6), a connecting rod (19) is provided between the two left end support plates (6), and the two ends of the connecting rod (19) are respectively connected to the two left end support plates. (6) is fixedly connected, the output end of the tilting cylinder (10) is hinged to the left end support plate (6), the side of the left end support plate (6) away from the horizontal thrust cylinder (3) is connected to the left side fixing component, the top end of the base (1) away from the horizontal thrust cylinder (3) is fixedly connected to the right end support plate (11), the middle position of the right end support plate (11) away from the horizontal thrust cylinder (3) is connected to the top fixing component, the lower end of the right end support plate (11) is connected to the positioning component, and one end of the base (1) is provided with a control console (25); The top fixing assembly comprises an upward push cylinder (12), a motor (13) and a pressure plate (14), wherein the upward push cylinder (12) is fixedly connected to the right end support plate (11), the bottom of the motor (13) is fixedly connected to the output end of the upward push cylinder (12), and the bottom of one end of the pressure plate (14) is fixedly connected to the output end of the motor (13); The pressing plate (14) is T-shaped, and a side of the pressing plate (14) away from the motor (13) is fixedly connected to an anti-slip plate (20); The positioning assembly comprises a mounting plate (15), a fixed cylinder (16), and a fixed frame (17); the mounting plate (15) is fixedly connected to the right end support plate (11); the fixed cylinder (16) is fixedly connected to the mounting plate (15); and one side of the fixed frame (17) is fixedly connected to the output end of the fixed cylinder (16).

2. The welding tool for counterweight of construction machinery according to claim 1, characterized in that: The left-side fixing assembly comprises a positioning frame (7), an upper fixing block (8) and a lower supporting plate (9); a side of the positioning frame (7) away from the right supporting plate (11) is fixedly connected to the left supporting plate (6); the bottom of the upper fixing block (8) is fixedly connected to the top of the positioning frame (7); and the top of the lower supporting plate (9) is fixedly connected to the bottom of the positioning frame (7).

3. The welding tool for counterweight of construction machinery according to claim 2, characterized in that: The positioning frame (7) comprises an upper positioning arc plate (701), a lower positioning arc plate (702) and a reinforcing plate (703); the upper positioning arc plate (701) and the lower positioning arc plate (702) are fixedly connected to the left support plate (6) at a side away from the right support plate (11); the top of the reinforcing plate (703) is fixedly connected to the bottom of the upper positioning arc plate (701); and the bottom of the reinforcing plate (703) is fixedly connected to the top of the lower positioning arc plate (702).

4. The welding tool for counterweight of construction machinery according to claim 1, characterized in that: The side walls at both ends of the fixed frame (17) are fixedly connected with side positioning blocks (18), and the upper ends of the opposite surfaces of the two side positioning blocks (18) are provided with guiding inclined surfaces.

5. The welding tool for counterweight of construction machinery according to claim 1, characterized in that: Guide rails (2) are fixedly connected to both sides of the top of the base (1), and the translation frame (4) is slidably connected to the guide rails (2).

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