A quick positioning and clamping excavator support welding tool

Abstract

The utility model relates to excavator support field, concretely relates to a quick positioning and clamping's excavator support welding tool, including welding tool table, the main part for excavator support welding, the positioning scale is fixedly installed in the front of welding tool table, is used for positioning and contrast, and the both sides of welding tool table top are fixedly installed with fixed slide rail, the fixed slide rail's outside is connected with fixed sliding block, the fixed sliding block's outside is fixedly installed with excavator support holder. The utility model is provided with positioning scale, excavator support holder, telescopic cylinder, side locking rod, first elastic oblique tooth, first side locking sleeve and second elastic oblique tooth, when the excavator support placed on the center placement table carries out welding, can let telescopic cylinder push both sides excavator support holder and gather to excavator support fast, then through positioning scale to assist excavator support holder to carry out quick clamping positioning when sliding.

Description

Technical Field

[0001] This utility model relates to the field of excavator brackets, specifically to a welding fixture for excavator brackets that provides quick positioning and clamping. Background Technology

[0002] An excavator support frame is a metal frame in the excavator structure used to support and connect other components. It mainly bears and supports the weight of the upper part of the excavator, ensuring a stable center of gravity during climbing or operation and avoiding the risk of tipping over due to instability. Excavator support welding fixtures are tools or devices used to assist in the welding process. By fixing and positioning the support components, they reduce welding deformation and ensure the accuracy of weld size and shape.

[0003] A search revealed a welding fixture for excavator supports, with publication number CN220718257U. Specifically, this fixture includes an operating platform. A lead screw and a support slide rod are installed inside the operating platform. A first slider and a second slider are respectively fitted onto the outer sides of the lead screw and the support slide rod. A groove is formed at the top of the operating platform. A handwheel is installed on one side of the operating platform. The tops of the first and second sliders extend out of the operating platform. Fixing components are installed at the tops of the first and second sliders. This invention allows the lead screw to rotate by rotating the handwheel. When the lead screw rotates, the first and second sliders move synchronously along the installation direction of the lead screw and the support slide rod. The fixing components can fix excavator supports of different shapes. The movement of the first and second sliders allows for position adjustment of the excavator support, facilitating welding and improving welding efficiency.

[0004] Existing excavator bracket welding fixtures lack the ability for rapid positioning and clamping, resulting in long clamping times and inaccurate positioning due to operational errors. Furthermore, the lack of a self-locking mechanism makes the clamps prone to loosening due to vibration during welding, requiring frequent adjustments and reducing production efficiency. In the aforementioned comparative case, the excavator bracket welding fixtures also lacked the ability for rapid positioning and clamping as well as self-locking after clamping. Over time, this will affect welding quality and structural strength.

[0005] Therefore, it is necessary to invent a quick-positioning and clamping excavator bracket welding fixture to solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a quick-positioning and clamping welding fixture for excavator brackets. Through a positioning scale, excavator bracket clamp, telescopic cylinder, side locking rod, first elastic helical teeth, first side locking sleeve, and second elastic helical teeth, this welding fixture achieves quick-positioning and clamping capabilities. This design significantly shortens clamping time, and the added self-locking mechanism prevents the excavator bracket clamp from loosening due to vibration during welding, reducing the number of adjustments and further improving production efficiency. This quick-positioning and clamping method, under long-term use, ensures accurate welding positioning. The aim is to reduce the risk of weld misalignment and thermal deformation, and improve weld quality. This addresses the shortcomings of existing excavator bracket welding fixtures, which lack rapid positioning and clamping capabilities. These limitations lead to time-consuming clamping of the excavator bracket, inaccurate positioning due to operational errors, and a lack of self-locking mechanisms. Furthermore, the clamps are prone to loosening due to vibration during welding, requiring frequent adjustments and reducing production efficiency. The excavator bracket welding fixtures in the aforementioned comparative case also lack rapid positioning and clamping capabilities and self-locking after clamping, which, over long-term use, will affect welding quality and structural strength.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a quick-positioning and clamping excavator bracket welding fixture, including a welding fixture table and a main body for welding the excavator bracket;

[0008] A positioning ruler is fixedly installed in front of the welding fixture for positioning and reference. Fixed slide rails are fixedly installed on both sides of the upper part of the welding fixture. Fixed sliders are slidably connected to the outside of the fixed slide rails. Excavator bracket clamps are fixedly installed on the outside of the fixed sliders.

[0009] Side fixing plates are fixedly installed on both sides above the welding fixture table for pushing and quick positioning. Telescopic rods are fixedly installed on both outer sides of the side fixing plates. A telescopic cylinder is fixedly installed in the center of the side fixing plates. A center placement platform is fixedly installed in the center above the welding fixture table.

[0010] Side locking rods are fixedly installed on both sides of the outer side of the side fixing plate for self-locking after positioning. The outer side of each side locking rod is fixedly installed with a first elastic helical tooth. The outer sides of the excavator bracket clamp are fixedly installed with a first side locking sleeve. The outer side of the first side locking sleeve is engaged with a second side locking sleeve. The inner side of the second side locking sleeve is fixedly installed with a second elastic helical tooth.

[0011] Preferably, the excavator bracket clamp is slidably connected to the welding fixture table, and the fixed slide rail is used in conjunction with the fixed slider.

[0012] Preferably, the front end of the telescopic rod is fixedly connected to the outside of the excavator bracket clamp, and the front end of the telescopic cylinder is fixedly connected to the outside of the excavator bracket clamp.

[0013] Preferably, a pressure control body is fixedly installed on the outside of the excavator bracket clamp, a pressure pipe is fixedly installed at the output end of the pressure control body, a flexible bushing is fixedly installed on the outside of the pressure pipe, and a flexible clamping rod is slidably connected inside the flexible bushing.

[0014] Preferably, the flexible clamping rod is externally slidably connected to the excavator bracket clamp, and the flexible clamping rod is evenly distributed on the excavator bracket clamp.

[0015] Preferably, the first side locking sleeve and the second side locking sleeve are slidably connected to the side locking rod, and the first elastic helical teeth and the second elastic helical teeth are in opposite directions.

[0016] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0017] This utility model includes a positioning scale, excavator bracket clamps, a telescopic cylinder, a side locking rod, a first elastic helical tooth, a first side locking sleeve, and a second elastic helical tooth. Before welding, the telescopic cylinder can push the excavator bracket clamps on both sides to quickly move towards the excavator bracket. During sliding, the positioning scale assists in quickly clamping and positioning the excavator bracket clamps. Furthermore, as the excavator bracket clamps slide, the first and second side locking sleeves can press against each other through the second elastic helical tooth and the first elastic helical tooth of the side locking rod, ensuring smooth sliding without affecting normal operation. In this case, after the excavator bracket clamps and positions the excavator bracket, the second elastic helical tooth abuts against the spacing groove of the first elastic helical tooth, thereby completing the self-locking of the current position of the excavator bracket clamp. This gives the excavator bracket welding fixture the ability to quickly position and clamp. This design significantly shortens the clamping time, and the added self-locking mechanism can prevent the excavator bracket clamp from loosening due to vibration during the welding process, reduce the number of adjustments, and further improve production efficiency. This quick positioning and clamping operation method under long-term use can ensure the accuracy of the welding position, reduce the risk of weld offset and thermal deformation, and improve the weld quality.

[0018] This utility model includes an excavator bracket clamp, a pressure control body, a pressure pipe, a flexible bushing, and a flexible clamping rod. When using this excavator bracket welding fixture, due to the different shapes of excavator brackets, the flexible clamping rod can slide inside the excavator bracket clamp, allowing the flexible clamping rod and the flexible bushing to extend and retract, so that the flexible clamping rod fits against the outside of excavator brackets of different shapes. Then, the pressure control body inputs pressurized oil from the pressure pipe into the flexible bushing, applying pressure to the flexible clamping rod to ensure the current extension and retraction position of the flexible clamping rod, thereby completing the flexible clamping of the excavator bracket. This design can quickly adapt to excavator brackets of different shapes, reduce the time for changing special fixtures, and also ensure the stability of the clamping force and reduce welding deformation. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the excavator bracket clamp structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the central placement platform structure of this utility model;

[0023] Figure 4 This is a schematic diagram of the flexible clamping rod structure of this utility model;

[0024] Figure 5 This is a schematic diagram of the first side locking sleeve structure of this utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Welding fixture; 2. Positioning scale; 3. Fixed slide rail; 4. Fixed slider; 5. Excavator bracket clamp; 6. Side fixing plate; 7. Telescopic rod; 8. Telescopic cylinder; 9. Center placement platform; 10. Pressure control body; 11. Pressure pipe; 12. Flexible bushing; 13. Flexible clamping rod; 14. Side locking rod; 15. First elastic helical tooth; 16. First side locking sleeve; 17. Second side locking sleeve; 18. Second elastic helical tooth. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0028] This utility model provides, for example Figure 1-5 The excavator bracket welding fixture shown includes a welding fixture table 1 and a main body for welding the excavator bracket.

[0029] Positioning ruler 2 is fixedly installed in front of welding fixture table 1 for positioning and reference. Fixed slide rails 3 are fixedly installed on both sides of the upper part of welding fixture table 1. Fixed sliders 4 are slidably connected to the outside of fixed slide rails 3. Excavator bracket clamps 5 are fixedly installed on the outside of fixed sliders 4.

[0030] Side fixing plates 6 are fixedly installed on both sides above the welding fixture table 1 for pushing and quick positioning. Telescopic rods 7 are fixedly installed on both sides of the outside of the side fixing plates 6. Telescopic cylinders 8 are fixedly installed in the center of the side fixing plates 6. A center placement platform 9 is fixedly installed in the center above the welding fixture table 1.

[0031] Side locking rods 14 are fixedly installed on both sides of the outer side of the side fixing plate 6 for self-locking after positioning. First elastic helical teeth 15 are fixedly installed on the outer side of the side locking rods 14. First side locking sleeves 16 are fixedly installed on both sides of the outer side of the excavator bracket clamp 5. Second side locking sleeves 17 are engaged with the outer side of the first side locking sleeves 16. Second elastic helical teeth 18 are fixedly installed inside the second side locking sleeves 17. When the excavator bracket clamp 5 slides, the first side locking sleeves 16 and the second side locking sleeves 17 can press against the first elastic helical teeth 15 of the side locking rods 14 through the second elastic helical teeth 18. This allows the excavator bracket clamp 5 to clamp and position the excavator bracket without affecting normal sliding. After the excavator bracket clamp 5 clamps and positions the excavator bracket, the second elastic helical teeth 18 abut against the spacing groove of the first elastic helical teeth 15, thereby completing the self-locking of the current position of the excavator bracket clamp 5.

[0032] like Figure 1 , Figure 2 and Figure 3As shown, the excavator bracket clamp 5 is slidably connected to the welding fixture 1. The fixed slide rail 3 and the fixed slider 4 work together to limit the sliding trajectory of the excavator bracket clamp 5 on the welding fixture 1, ensuring smooth sliding of the excavator bracket clamp 5. The front end of the telescopic rod 7 is fixedly connected to the outside of the excavator bracket clamp 5, and the front end of the telescopic cylinder 8 is fixedly connected to the outside of the excavator bracket clamp 5. The telescopic cylinder 8 can push the excavator bracket clamps 5 on both sides to quickly move towards the excavator bracket. The frame is brought closer together. A pressure control body 10 is fixedly installed on the outside of the excavator bracket clamp 5. A pressure pipe 11 is fixedly installed at the output end of the pressure control body 10. A flexible bushing 12 is fixedly installed on the outside of the pressure pipe 11. A flexible clamping rod 13 is slidably connected inside the flexible bushing 12. The pressure control body 10 inputs the pressure oil in the pressure pipe 11 into the flexible bushing 12, giving pressure to the flexible clamping rod 13 to ensure the current extension and retraction position of the flexible clamping rod 13, thereby completing the flexible clamping of the excavator bracket by the flexible clamping rod 13.

[0033] like Figure 1 , Figure 4 and Figure 5 As shown, the flexible clamping rod 13 is slidably connected to the outside of the excavator bracket clamp 5. The flexible clamping rods 13 are evenly distributed on the excavator bracket clamp 5. Due to the different shapes of excavator brackets, the flexible clamping rods 13 can slide inside the excavator bracket clamp 5, thereby allowing the flexible clamping rods 13 and the flexible bushing 12 to extend and retract, so that the flexible clamping rods 13 fit against the outside of excavator brackets of different shapes. The first side locking sleeve 16 and the second side locking sleeve 17 are slidably connected to the side locking rod 14. The first elastic helical tooth 15 and the second elastic helical tooth 18 are in opposite directions. The structure of the first side locking sleeve 16 and the second side locking sleeve 17 is simple and easy to operate, and it is also convenient to repair in time if a fault occurs.

[0034] The working principle of this utility model is as follows: First, connect the external power supply and place the excavator bracket to be welded onto the center placement platform 9 of the welding fixture 1. Then, turn on the switch of the telescopic cylinder 8, allowing the telescopic cylinder 8 to push the excavator bracket clamps 5 on both sides to quickly move towards the excavator bracket. Next, the positioning scale 2 can be used to assist in the quick clamping and positioning of the excavator bracket clamps 5 during sliding. Subsequently, when the excavator bracket clamps 5 come into contact with the excavator bracket, due to the different shape of the excavator bracket, the flexible clamping rod 13 can be used inside the excavator bracket clamps 5. The sliding mechanism allows the flexible clamping rod 13 and flexible bushing 12 to extend and retract, enabling the flexible clamping rod 13 to fit against the exterior of excavator brackets of different shapes. Then, the pressure control body 10 inputs pressurized oil from the pressure pipe 11 into the flexible bushing 12, providing pressure support to the flexible clamping rod 13 and ensuring its current extension / retraction position. This completes the flexible clamping of the excavator bracket by the flexible clamping rod 13. Furthermore, as the excavator bracket clamping seat 5 slides, the first side locking sleeve 16 and the second side locking sleeve 17 can also interact with the first elastic helical teeth of the side locking rod 14 via the second elastic helical teeth 18. The mutual pressure of the first elastic helical tooth 15 allows the excavator bracket clamp 5 to clamp and position the excavator bracket without affecting normal sliding. After this clamping and positioning, the second elastic helical tooth 18 abuts against the groove of the first elastic helical tooth 15, thus achieving self-locking of the excavator bracket clamp 5 at its current position. This gives the excavator bracket welding fixture the ability to quickly position and clamp, significantly shortening the clamping time. Furthermore, the added self-locking mechanism prevents the excavator bracket clamp 5 from loosening due to vibration during welding, reducing the number of adjustments and further improving production efficiency. At this point, the clamped excavator bracket is positioned... After the excavator bracket is in place, welding can proceed normally. Once welding is complete, the second side locking sleeve 17 can be manually removed to disengage the second elastic helical tooth 18 from the slot of the first elastic helical tooth 15. This allows the telescopic cylinder 8 to retract, thereby releasing the clamped excavator bracket and completing the removal of the part. Finally, after completing the installation and use of all excavator bracket welding fixtures according to the above operations, turn off the switch of the telescopic cylinder 8. If not used for a long time, simply disconnect the external power supply. This completes the use of the quick-positioning and clamping excavator bracket welding fixture.

[0035] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A quick-positioning and clamping welding fixture for excavator brackets, characterized in that: include Welding fixture (1), the main body for welding excavator brackets; The positioning ruler (2) is fixedly installed in front of the welding fixture (1) for positioning and reference. Fixed slide rails (3) are fixedly installed on both sides of the upper part of the welding fixture (1). Fixed sliders (4) are slidably connected to the outside of the fixed slide rails (3). Excavator bracket clamps (5) are fixedly installed on the outside of the fixed sliders (4). Side fixing plates (6) are fixedly installed on the upper sides of the welding fixture table (1) for pushing and quick positioning. Telescopic rods (7) are fixedly installed on the outer sides of the side fixing plates (6). Telescopic cylinders (8) are fixedly installed in the center of the side fixing plates (6). A center placement platform (9) is fixedly installed in the upper center of the welding fixture table (1). Side locking rods (14) are fixedly installed on both sides of the side fixing plate (6) for self-locking after positioning. First elastic helical teeth (15) are fixedly installed on the outside of the side locking rods (14). First side locking sleeves (16) are fixedly installed on both sides of the excavator bracket clamp (5). Second side locking sleeves (17) are engaged with the outside of the first side locking sleeves (16). Second elastic helical teeth (18) are fixedly installed inside the second side locking sleeves (17).

2. The excavator bracket welding fixture for quick positioning and clamping according to claim 1, characterized in that: The excavator bracket clamp (5) is slidably connected to the welding fixture (1), and the fixed slide rail (3) is used in conjunction with the fixed slider (4).

3. The excavator bracket welding fixture for quick positioning and clamping according to claim 1, characterized in that: The front end of the telescopic rod (7) is fixedly connected to the outside of the excavator bracket clamp (5), and the front end of the telescopic cylinder (8) is fixedly connected to the outside of the excavator bracket clamp (5).

4. The excavator bracket welding fixture for quick positioning and clamping according to claim 1, characterized in that: The excavator bracket clamp (5) is fixedly mounted with a pressure control body (10), and a pressure pipe (11) is fixedly mounted at the output end of the pressure control body (10). A flexible bushing (12) is fixedly mounted on the outside of the pressure pipe (11), and a flexible clamping rod (13) is slidably connected inside the flexible bushing (12).

5. The excavator bracket welding fixture for quick positioning and clamping according to claim 4, characterized in that: The flexible clamp (13) is externally slidably connected to the excavator bracket clamp (5), and the flexible clamp (13) is evenly distributed on the excavator bracket clamp (5).

6. The excavator bracket welding fixture for quick positioning and clamping according to claim 1, characterized in that: The first side locking sleeve (16) and the second side locking sleeve (17) are slidably connected to the side locking rod (14), and the first elastic helical tooth (15) and the second elastic helical tooth (18) are in opposite directions.

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