A robotic welding fixture for counterweights of medium-sized excavators

Abstract

This utility model relates to the field of excavator counterweight technology and discloses a robotic welding fixture for a medium-sized excavator counterweight. It includes a welding base with two sets of support plates on one side of the upper end. The support plates are fixedly connected to the welding base. A fixing plate is located at the upper end of the support plates, and a fixing hole is located at the upper end of the fixing plate. A fixing component is located inside the fixing hole, and the lower end of the fixing component extends into the support plate. The fixing component includes a fixing rod with a diameter adapted to the diameter of the fixing hole. A threaded rod is located at the lower end of the fixing hole, and a limiting seat is located at the upper end of the fixing rod. An adjusting ring is located at one end of the limiting seat, and the adjusting ring is fixedly connected to the limiting seat. A fastening pad is located on the outside of the fixing rod, and a pressure plate is located at the lower end of the fastening pad. In this utility model, by setting the fixing component, the elastic ball inside the fixing component can buffer the pressure plate and the counterweight during positioning, preventing damage to the appearance of the counterweight and improving the overall aesthetics of the counterweight.

Description

Technical Field

[0001] This utility model relates to the field of excavator counterweight technology, and in particular to a robotic welding fixture for medium-sized excavator counterweights. Background Technology

[0002] Excavator counterweights are heavy-duty components used in excavators, typically made of cast iron or steel. Robot welding fixtures are tools used to assist robots in welding operations. Existing excavator counterweights manufactured using robot welding require the use of welding fixtures during the production process to improve welding efficiency.

[0003] Existing robotic welding fixtures for counterweights can easily damage the surface of the counterweights during positioning, reducing their overall aesthetics. To address this, we propose a robotic welding fixture for counterweights in medium-sized excavators. Utility Model Content

[0004] The main objective of this invention is to provide a robotic welding fixture for counterweight blocks of medium-sized excavators, which can effectively solve the technical problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a welding fixture for a medium-sized excavator counterweight robot, comprising a welding base, two sets of support plates on one side of the upper end of the welding base, the support plates being fixedly connected to the welding base, a fixing plate on the upper end of the support plate, a fixing hole on the upper end of the fixing plate, a fixing component inside the fixing hole, the lower end of the fixing component extending into the support plate; the fixing component includes a fixing rod, the fixing rod being a cylindrical rod, the diameter of the fixing rod being adapted to the diameter of the fixing hole, a threaded rod at the lower end of the fixing hole, a limiting seat at the upper end of the fixing rod, the diameter of the limiting seat being larger than the diameter of the fixing hole, an adjusting ring at one end of the limiting seat, the adjusting ring being fixedly connected to the limiting seat, a fastening pad on the outside of the fixing rod, and a pressure plate at the lower end of the fastening pad.

[0006] Preferably, the pressure plate is a crescent-shaped rigid block with the curved end of the pressure plate facing the fastening pad.

[0007] Preferably, the pressure plate has a through hole in the center, and the pressure plate is sleeved on the outside of the fixing rod through the through hole.

[0008] Preferably, two sets of elastic balls are installed at the lower end of the pressure plate.

[0009] Preferably, the elastic ball is a soft rubber ball, and the upper end of the elastic ball is fixedly connected to the pressure plate. By setting the elastic ball, the flexible design of the elastic ball can play a buffering role between the pressure plate and the counterweight, avoiding damage to the appearance of the counterweight.

[0010] Preferably, the fastening pad is a ring-shaped metal washer, which is fitted onto the outside of the fixing rod. By setting the fastening pad, the fastening force of the limiting seat can be increased, and the fixing effect can be improved.

[0011] Preferably, a calibration hole is provided on one side of the upper end of the welding base. By providing a calibration hole, it is convenient to calibrate the counterweight components through the position of the calibration hole.

[0012] Beneficial effects

[0013] This utility model provides a robotic welding fixture for the counterweight of a medium-sized excavator, which has the following advantages:

[0014] (1) The robotic welding fixture for counterweight blocks of medium-sized excavators, by setting a fixing component, the elastic ball inside the fixing component can play a buffering role between the pressure plate and the counterweight block during the positioning process, avoiding damage to the appearance of the counterweight block and improving the overall aesthetics of the counterweight block. Attached Figure Description

[0015] To more clearly illustrate the embodiments of this utility model or the technical solutions in the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a partial cross-sectional schematic diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the fixing component structure of this utility model.

[0019] Legend:

[0020] 1. Welded base; 2. Support plate; 3. Fixing plate; 4. Fixing hole; 5. Fixing component; 6. Correction hole; 7. Fixing rod; 8. Threaded rod; 9. Limit seat; 10. Adjusting ring; 11. Fastening pad; 12. Pressure plate; 13. Through hole; 14. Elastic ball. Detailed Implementation

[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] Example 1: A robotic welding fixture for counterweight blocks of a medium-sized excavator, such as... Figures 1-2As shown, the assembly includes a welding base 1, which is a rectangular metal plate. Two sets of support plates 2 are inclinedly arranged on one side of the upper end of the welding base 1. The lower ends of the support plates 2 are fixedly connected to the welding base 1. The support plates 2 have grooves reserved inside for the end of the counterweight to be inserted. A fixing plate 3 is provided on the upper end of the support plate 2. The fixing plate 3 is a rectangular plate and is installed at an incline. The lower end of the fixing plate 3 is fixedly connected to the support plate 2. Fixing holes 4 are respectively opened on both sides of the upper end of the fixing plate 3. Fixing components 5 are provided inside the fixing holes 4. The lower end of the fixing components 5 passes through the fixing plate 3 and extends into the groove of the support plate 2 for the end of the counterweight to be inserted. Multiple sets of correction holes 6 are provided on the upper end of the welding base 1 away from the support plate 2. The correction holes 6 are circular grooves. The distribution of the correction holes 6 can be set according to the shape of the counterweight, so that the position of the counterweight can be corrected by observing the correction holes 6 during assembly.

[0023] Example 2: A robotic welding fixture for counterweight blocks of a medium-sized excavator, based on Example 1, as follows: Figures 1-3 As shown, the fixing component 5 includes a fixing rod 7, which is a cylindrical rod with a diameter that matches the diameter of the fixing hole 4. The lower end of the fixing rod 7 can be inserted into the fixing hole 4. A threaded rod 8 is fixedly connected to the lower end of the fixing hole 4. A limit seat 9 is provided at the upper end of the fixing rod 7. The limit seat 9 is a circular block, and its lower end is fixedly connected to the fixing rod 7. The diameter of the limit seat 9 is larger than the diameter of the fixing hole 4. An adjusting ring 10 is provided at the end of the limit seat 9 away from the fixing rod 7. The adjusting ring 10 is a rigid circular ring, and its lower end is fixedly connected to the limit seat 9. A fastening pad 11 is provided on the outside of the fixing rod 7. The fastening pad 11 is an annular metal washer. The fastening pad 11 is movably connected to the outside of the fixing rod 7. The diameter of the fastening pad 11 is larger than the diameter of the fixing hole 4. A pressure plate 12 is provided at the lower end of the fastening pad 11. The pressure plate 12 is a crescent-shaped hard block. The arc end of the pressure plate 12 faces the fastening pad 11. A through hole 13 is provided in the center of the pressure plate 12. The diameter of the through hole 13 is adapted to the fixing rod 7. The pressure plate 12 is sleeved on the outside of the fixing rod 7 through the through hole 13. The pressure plate 12 is movably connected to the fixing rod 7. Two sets of elastic balls 14 are provided at the lower end of the pressure plate 12. The two sets of elastic balls 14 are symmetrically installed at the lower end of the pressure plate 12. The elastic balls 14 are soft rubber balls. The upper end of the elastic balls 14 is fixedly connected to the pressure plate 12.

[0024] It should be noted that this utility model is a robotic welding fixture for counterweight blocks of a medium-sized excavator. In use, first, two sets of counterweight block components to be welded are symmetrically placed on the upper end of the welding base 1. Then, the two sets of counterweight block components are spliced ​​and aligned. Next, the ends of the counterweight blocks are inserted into the support plate 2. After the counterweight block components are inserted into the predetermined positions, they are then aligned using the position of the alignment hole 6 to ensure that the welded counterweight block is at the predetermined angle. After alignment, the fastening pad 11 is then fitted onto the outside of the fixing rod 7. The lower end of the fixing rod 7 is then inserted into the fixing hole 4, and the lower end of the threaded rod 8 is inserted into the through hole 13. 13. Fit the pressure plate 12 onto the outside of the fixing rod 7. Ensure the pressure plate 12 is installed at the lower end of the fixing plate 3 and the elastic ball 14 faces the counterweight. Then, align the lower end of the threaded rod 8 with the threaded hole on the outside of the counterweight. Insert a tool into the adjusting ring 10 and rotate the adjusting ring 10 to screw the threaded rod 8 at the lower end of the fixing rod 7 into the counterweight, thus positioning the counterweight. During rotation, the fixing rod 7 causes the elastic ball 14 at the lower end of the pressure plate 12 to press against the surface of the counterweight. The flexible design of the elastic ball 14 provides a buffer between the pressure plate 12 and the counterweight, preventing damage to the counterweight's appearance during fixing. By setting the fixing component 5, the elastic ball 14 inside the fixing component 5 provides a buffer between the pressure plate 12 and the counterweight during positioning, preventing damage to the counterweight's appearance and improving the overall aesthetics of the counterweight.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A welding fixture for a robot of counterweight blocks for a medium-sized excavator, comprising a welding base (1), two sets of support plates (2) on one side of the upper end of the welding base (1), the support plates (2) being fixedly connected to the welding base (1), and a fixing plate (3) on the upper end of the support plates (2), characterized in that: The upper end of the fixing plate (3) is provided with a fixing hole (4), and a fixing component (5) is provided inside the fixing hole (4). The lower end of the fixing component (5) extends into the support plate (2). The fixing component (5) includes a fixing rod (7), the diameter of which is adapted to the diameter of the fixing hole (4). The lower end of the fixing hole (4) is provided with a threaded rod (8). The upper end of the fixing rod (7) is provided with a limiting seat (9), the diameter of which is larger than the diameter of the fixing hole (4). One end of the limiting seat (9) is provided with an adjusting ring (10), which is fixedly connected to the limiting seat (9). The outer side of the fixing rod (7) is provided with a fastening pad (11), and the lower end of the fastening pad (11) is provided with a pressure plate (12).

2. The medium excavator counterweight robot welding tooling of claim 1, wherein: The pressure plate (12) is a crescent-shaped hard block, with the arc-shaped end of the pressure plate (12) facing the fastening pad (11).

3. The medium excavator counterweight robot welding tooling of claim 2, wherein: The pressure plate (12) has a through hole (13) in the center, and the pressure plate (12) is sleeved on the outside of the fixing rod (7) through the through hole (13).

4. The medium excavator counterweight robot welding tooling of claim 2, wherein: Two sets of elastic balls (14) are installed at the lower end of the pressure plate (12).

5. The medium excavator counterweight robot welding tooling of claim 4, wherein: The elastic ball (14) is a soft rubber ball, and the upper end of the elastic ball (14) is fixedly connected to the pressure plate (12).

6. The medium excavator counterweight robot welding tooling of claim 1, wherein: The fastening pad (11) is an annular metal washer, and the fastening pad (11) is sleeved on the outside of the fixing rod (7).

7. The medium excavator counterweight robot welding tooling of claim 1, wherein: The welding base (1) has a correction hole (6) on one side of its upper end.

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