Centering and clamping tool for welding of movable arm of excavator

Abstract

The utility model discloses an excavator movable arm welding centering clamping tool, which relates to the technical field of excavator movable arm welding and comprises a processing platform, fixed push rods are fixedly mounted at the front end and the rear end of the upper side of the processing platform, T-shaped sliding grooves are formed in the left end and the right end of the upper side of the processing platform, and T-shaped sliding blocks are slidably connected into the T-shaped sliding grooves. An L-shaped mounting plate is fixedly connected to the upper side of the T-shaped sliding block, fixing plates are fixedly connected to the front end and the rear end of the outer side of a side plate of the L-shaped mounting plate, an adjusting motor is fixedly mounted on the front side of the fixing plate at the front end, and the output end of the adjusting motor penetrates through the front side of the fixing plate and is fixedly connected with a two-way threaded rod. By arranging the fixed push rod, the fixed rod, the L-shaped mounting plate, the fixed plate, the adjusting motor, the two-way threaded rod and the clamping plate, the excavator movable arm can be effectively fixed in the middle, the excavator movable arm is prevented from deviating during welding, and large errors of the welding position of a connecting part are avoided.

Description

Technical Field

[0001] This utility model relates to the field of excavator boom welding technology, specifically to an excavator boom welding centering clamping fixture. Background Technology

[0002] The excavator boom is one of the main working components of an excavator. It is responsible for moving the excavator's bucket, grab bucket, and other attachments to the required position to complete earthmoving, transporting, and lifting operations. The boom consists of multiple parts, including the base, boom body, connecting rod, and hydraulic cylinders. Its design and structure determine the excavator's working performance, such as digging depth, working range, and load capacity. The excavator boom bears a huge working load. Welding improves the overall strength and rigidity of the boom by connecting different components, ensuring that it is not easily deformed or damaged during operation. Welding is an important means of connecting the various parts of the boom. Since the boom may experience wear and cracks during long-term use, welding is not only used in the initial manufacturing process but also in the maintenance and repair of the boom to restore its original performance.

[0003] When welding excavator booms, clamping fixtures are required for fixation. However, general clamping fixtures are difficult to effectively center and fix the excavator boom, which is prone to displacement during welding. This can lead to significant errors in the welding position of connecting components, making subsequent assembly difficult. Furthermore, welding position deviations can reduce the strength of the excavator boom, making it more susceptible to damage during use. Excavator booms come in various specifications and sizes depending on usage requirements, and general clamping fixtures have poor adjustability, making them unsuitable for multiple sizes and resulting in low work efficiency. To address these issues, a new excavator boom welding centering clamping fixture is proposed. Utility Model Content

[0004] To address the aforementioned technical problems, a welding centering clamping fixture for excavator booms is provided. This solves the problem that current excavator booms require clamping fixtures for fixation during welding, but these fixtures are often ineffective in effectively centering and fixing the boom. The boom is prone to shifting during welding, leading to significant errors in the welding positions of connecting components. This makes subsequent assembly difficult, reduces the boom's strength, and increases its susceptibility to damage during use. Furthermore, excavator booms come in various specifications and sizes depending on usage requirements, and the poor adjustability of general clamping fixtures makes them unsuitable for multiple boom sizes, resulting in low work efficiency.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a welding centering clamping fixture for an excavator boom, comprising a processing platform, a support push rod fixedly installed at the upper center position of the processing platform, a support frame fixedly connected to the output end of the support push rod, support rods fixedly connected to both the left and right ends of the support frame, fixed push rods fixedly installed at both the upper front and rear ends of the processing platform, adjusting rods fixedly connected to the output ends of the two sets of fixed push rods, a plurality of threaded holes opened on the front side of the rear adjusting rod, a plurality of mounting holes penetrating the front side of the front adjusting rod, and a fixed rod slidably connected inside the mounting holes, the upper left and right ends of the processing platform... Each end of the platform has a T-shaped groove, and a T-shaped slider is slidably connected inside the T-shaped groove. Adjusting push rods are fixedly installed on both the left and right sides of the processing platform. The output end of the adjusting push rod passes through the outer side of the processing platform and is fixedly connected to the outer side of the T-shaped slider. An L-shaped mounting plate is fixedly connected to the upper side of the T-shaped slider. An adjusting groove is opened through the middle of the side plate of the L-shaped mounting plate. Clamping plates are slidably connected to the front and rear ends of the adjusting groove. Fixing plates are fixedly connected to the front and rear ends of the side plate of the L-shaped mounting plate. An adjusting motor is fixedly installed on the front side of the fixing plate. The output end of the adjusting motor passes through the front side of the fixing plate and is fixedly connected to a bidirectional threaded rod.

[0006] Preferably, the front side of the fixing rod passes through the interior of the mounting hole and is fixedly connected to a knob.

[0007] Preferably, the rear end of the fixing rod passes through the interior of the mounting hole and is threadedly connected to the interior of the threaded hole.

[0008] Preferably, a rectangular groove is provided on the upper side of the bottom plate of the L-shaped mounting plate near the adjusting push rod, and a connecting slider is slidably connected inside the rectangular groove.

[0009] Preferably, a storage tray is fixedly connected to the upper side of the connecting slider.

[0010] Preferably, the threads at the front and rear ends of the bidirectional threaded rod are in opposite directions.

[0011] Preferably, a rotating support is fixedly installed on the front side of the rear fixed plate, and the rear end of the bidirectional threaded rod passes through the front side of the two clamping plates and is rotatably connected to the interior of the rotating support.

[0012] Compared with the prior art, the advantages of this utility model are as follows: By setting up a fixed push rod, a fixed rod, an L-shaped mounting plate, a fixed plate, an adjusting motor, a bidirectional threaded rod, and a clamping plate, this utility model can effectively center and fix the excavator boom, preventing the excavator boom from shifting during welding, avoiding large errors in the welding position of connecting parts, ensuring that the excavator boom can effectively carry out subsequent assembly work, and at the same time, avoiding reducing the strength of the excavator boom and preventing damage to the excavator boom during use. By setting up threaded holes, adjusting rods, mounting holes, T-shaped slides, adjusting push rods, and T-shaped sliders, the adjustability of the clamping fixture can be effectively improved, ensuring that the clamping fixture can be used for excavator booms of various sizes, thereby improving work efficiency. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0014] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle;

[0015] Figure 3 for Figure 1 A magnified view of a portion of point B in the middle.

[0016] The numbers on the map are:

[0017] 1. Machining platform; 2. Support push rod; 3. Support frame; 4. Support rod; 5. Fixed push rod; 6. Adjusting rod; 7. Threaded hole; 8. Mounting hole; 9. Fixed rod; 10. Knob; 11. T-shaped slide rail; 12. T-shaped slider; 13. Adjusting push rod; 14. L-shaped mounting plate; 15. Rectangular slide rail; 16. Connecting slider; 17. Storage tray; 18. Adjusting groove; 19. Clamping plate; 20. Fixed plate; 21. Adjusting motor; 22. Bidirectional threaded rod; 23. Rotating support. Detailed Implementation

[0018] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0019] Reference Figure 1-3As shown, a welding centering and clamping fixture for excavator booms includes a processing platform 1. A support push rod 2 is fixedly installed at the upper center of the processing platform 1. A support frame 3 is fixedly connected to the output end of the support push rod 2. Support rods 4 are fixedly connected to both the left and right ends of the support frame 3 to effectively support the excavator boom. Fixed push rods 5 are fixedly installed at both the front and rear ends of the upper side of the processing platform 1. Adjusting rods 6 are fixedly connected to the output ends of the two sets of fixed push rods 5. Several threaded holes 7 are opened on the front side of the rear adjusting rod 6, and several mounting holes 8 are opened through the front side of the front adjusting rod 6 to facilitate the adjustment of the position of the fixing rods 9. The fixture can fix excavator booms of various sizes. The fixing rods 9 are slidably connected inside the mounting holes 8. The rear end of the fixing rods 9 passes through the interior of the mounting holes 8 and is threadedly connected to the interior of the threaded holes 7. The front side of the fixing rods 9 passes through the interior of the mounting holes 8 and is fixedly connected to a knob 10 to facilitate the installation of the fixing rods 9.

[0020] Specifically, the upper left and right ends of the processing platform 1 have T-shaped grooves 11, and T-shaped sliders 12 are slidably connected inside the T-shaped grooves 11. Adjusting push rods 13 are fixedly installed on both the left and right sides of the processing platform 1 to facilitate the adjustment of the spacing of the L-shaped mounting plates 14 and to fix excavator booms of various sizes in the left and right directions. The output end of the adjusting push rod 13 passes through the outer side of the processing platform 1 and is fixedly connected to the outer side of the T-shaped slider 12. The upper side of the T-shaped slider 12 is fixedly connected to the L-shaped mounting plate 14. A rectangular groove 15 is opened on the upper side of the bottom plate of the L-shaped mounting plate 14 near the adjusting push rod 13. A connecting slider 16 is slidably connected inside the rectangular groove 15. A storage tray 17 is fixedly connected to the upper side of the connecting slider 16 to facilitate the adjustment of the position of the excavator boom in the front and back directions. An adjusting groove 18 is opened through the middle of the side plate of the L-shaped mounting plate 14. Clamping plates 19 are slidably connected at both the front and back ends of the adjusting groove 18.

[0021] Specifically, the front and rear ends of the side plate of the L-shaped mounting plate 14 are fixedly connected to the fixing plates 20. The front side of the front fixing plate 20 is fixedly installed with the adjusting motor 21. The output end of the adjusting motor 21 passes through the front side of the fixing plate 20 and is fixedly connected with the bidirectional threaded rod 22. The front and rear ends of the bidirectional threaded rod 22 have opposite thread directions to ensure that the clamping plates 19 can move synchronously in opposite directions, so that the excavator boom is centered. The front side of the rear fixing plate 20 is fixedly installed with the rotating support 23. The rear end of the bidirectional threaded rod 22 passes through the front side of the two clamping plates 19 and is rotatably connected to the inside of the rotating support 23.

[0022] Working principle: Before fixing the excavator boom, the adjusting push rod 13 drives the T-shaped slider 12 and L-shaped mounting plate 14 to move according to the length of the excavator boom, so that both ends of the excavator boom can be placed on the placement tray 17. The adjusting push rod 13 pushes the L-shaped mounting plate 14 inward to fix the excavator boom in the left and right directions. At the same time, the adjusting motor 21 drives the double-threaded rod 22 to rotate. The threads of the double-threaded rod 22 are opposite, and the two clamping plates 19 are symmetrical about the center line. When the double-threaded rod 22 rotates, the clamping plates 19 at the front and rear ends will move inward. The excavator boom and the loading platform 17 move synchronously, centering them in the front-to-back direction. Correspondingly, the support push rod 2 drives the support frame 3 to move upward, so that the support rod 4 abuts against the lower side of the excavator boom for support. After the position of the excavator boom is determined, a suitable mounting hole 8 is selected and the fixing rod 9 is inserted. The knob 10 is turned so that the end of the fixing rod 9 is connected to the corresponding threaded hole 7. After the fixing rod 9 is installed, the fixing push rod 5 drives the adjusting rod 6 to move downward, so that the fixing rod 9 abuts against the upper side of the excavator boom, completing the overall fixing of the excavator boom.

[0023] 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 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 claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A welding jig for centering a boom of an excavator, comprising a processing platform (1), characterized in that: The upper side center position of the processing platform (1) is fixedly installed with a support push rod (2), the output end of the support push rod (2) is fixedly connected with a support frame (3), the left and right ends of the inside of the support frame (3) are fixedly connected with support rods (4), the upper side front and rear ends of the processing platform (1) are fixedly installed with fixed push rods (5), the output ends of the two groups of fixed push rods (5) are fixedly connected with adjusting rods (6), a plurality of threaded holes (7) are formed in the front side of the rear end of the adjusting rod (6), a plurality of mounting holes (8) are formed in the front side of the front end of the adjusting rod (6), the inside of the mounting hole (8) is slidably connected with a fixed rod (9), the upper side left and right ends of the processing platform (1) are provided with T-shaped sliding grooves (11), the inside of the T-shaped sliding groove (11) is slidably connected with a T-shaped sliding block (12), the left and right sides of the processing platform (1) are fixedly installed with adjusting push rods (13), the output end of the adjusting push rod (13) penetrates the outside of the processing platform (1) and is fixedly connected with the outside of the T-shaped sliding block (12), the upper side of the T-shaped sliding block (12) is fixedly connected with an L-shaped mounting plate (14), the side plate middle position of the L-shaped mounting plate (14) is provided with an adjusting groove (18), the inside of the adjusting groove (18) is slidably connected with clamping plates (19) at the front and rear ends, the outside of the side plate of the L-shaped mounting plate (14) is fixedly connected with fixed plates (20) at the front and rear ends, the front side of the front end of the fixed plate (20) is fixedly installed with an adjusting motor (21), the output end of the adjusting motor (21) penetrates the front side of the fixed plate (20) and is fixedly connected with a bidirectional threaded rod (22).

2. The welding jigging and centering tooling for excavator boom according to claim 1, characterized in that: The front side of the fixed rod (9) penetrates the inside of the mounting hole (8) and is fixedly connected with a knob (10).

3. The welding fixture of claim 1, wherein: The rear end of the fixed rod (9) penetrates the inside of the mounting hole (8) and is threadedly connected with the inside of the threaded hole (7).

4. The welding fixture of claim 1, wherein: The bottom plate of the L-shaped mounting plate (14) is provided with a rectangular sliding groove (15) near one end of the adjusting push rod (13), and the inside of the rectangular sliding groove (15) is slidably connected with a connecting sliding block (16).

5. The welding fixture of claim 4, wherein: The upper side of the connecting sliding block (16) is fixedly connected with a storage supporting plate (17).

6. The welding fixture of claim 1, wherein: The front and rear ends of the bidirectional threaded rod (22) are opposite in screw direction.

7. The welding fixture of claim 1, wherein: The front side of the rear end of the fixed plate (20) is fixedly installed with a rotating support (23), and the rear end of the bidirectional threaded rod (22) penetrates the front side of the two clamping plates (19) and is rotatably connected with the inside of the rotating support (23).

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