Welding tool for guide assembly of lower frame longitudinal beam of excavator

Abstract

The utility model discloses a welding tool for a guide assembly of a longitudinal beam of a lower frame of an excavator, which comprises a tool platform, a positioning mechanism, two pressing mechanisms, a slide rail mechanism, two jacking mechanisms and a pointer pin, and the two jacking mechanisms are vertically mounted on the tool platform; an embedded groove is formed in the tool platform and corresponds to the two jacking mechanisms in position. The sliding rail mechanism is installed on the tool platform and corresponds to one jacking mechanism in position. The pressing mechanism is installed on the sliding rail mechanism and comprises an adjusting assembly, two sliding blocks, a pressing plate, a second bolt and a second nut, and the bottom of the adjusting assembly and the bottom of the second bolt are both connected with the sliding blocks. Therefore, longitudinal beam guide assemblies with similar structures and different sizes can be compressed and positioned, the application range is widened, meanwhile, the welding tool platform can be connected with a welding hand, mechanical hand welding is achieved, the welding efficiency and the welding quality are improved, and the welding cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of welding tooling, in particular to a welding tooling for a longitudinal beam guiding component of an excavator lower frame. Background Art

[0002] At present, the common longitudinal beam of the excavator lower frame is composed of a beam body component, a driving component and a guiding component. However, in order to meet the requirements of different models of lower frames, there are many types of guiding components.

[0003] At present, only large-batch guiding components can use special tooling and robotic welding. For the guiding components of the longitudinal beams of the lower frames with fewer batches of other models, it is difficult to apply robotic welding on a large scale. Without special welding tooling, it is difficult to adapt to guiding components of various sizes.

[0004] Meanwhile, in the case of manual welding, not only the welding cost is increased, but also the welding quality and efficiency are difficult to guarantee. Summary of the Utility Model

[0005] The utility model aims to solve at least one of the technical problems in the related art to a certain extent.

[0006] Therefore, the purpose of the utility model is to provide a welding tooling for a longitudinal beam guiding component of an excavator lower frame, which can press and position the longitudinal beam guiding components with similar structures but different sizes, increase the applicable range. At the same time, the welding tooling platform can be connected with the welding robot to realize robotic welding, improve the welding efficiency and quality, and reduce the welding cost.

[0007] To achieve the above object, the utility model provides a welding tooling for a longitudinal beam guiding component of an excavator lower frame, including a tooling platform, a positioning mechanism, two pressing mechanisms, a slide rail mechanism, two jacking mechanisms and a pointer pin. Among them, the two jacking mechanisms are installed on the tooling platform perpendicularly to each other; an embedded groove is arranged on the tooling platform, and the position of the embedded groove corresponds to that of the two jacking mechanisms; the slide rail mechanism is installed on the tooling platform and corresponds to the position of one of the jacking mechanisms; the pressing mechanism is installed on the slide rail mechanism, and the pressing mechanism includes an adjusting component, two sliders, a pressing plate, a second bolt and a second nut. Among them, the bottom of the adjusting component and the second bolt are both connected with the slider; round holes and arc-shaped grooves are arranged on the pressing plate, and the adjusting component passes through the arc-shaped groove and is connected with the slider; the second bolt passes through the round hole and the second nut in sequence and is connected with the slider; a plurality of positioning mechanisms are arranged on the tooling platform, and the pointer pin is installed on the tooling platform.

[0008] The welding tooling for the longitudinal beam guiding assembly of the excavator's lower carriage of the present utility model can clamp and position the longitudinal beam guiding assemblies with similar structures but different sizes, increasing the scope of application. At the same time, it can connect the welding tooling platform with the welding robot to achieve robotic welding, improving the welding efficiency and quality and reducing the welding cost.

[0009] In addition, the welding tooling for the longitudinal beam guiding assembly of the excavator's lower carriage proposed according to the above application may also have the following additional technical features:

[0010] Specifically, the adjusting assembly includes a first bolt, a first nut, and a gasket. Among them, the first bolt passes through the arc-shaped slot, and the first nut is installed on the first bolt; the gasket is arranged between the pressing plate and the first nut.

[0011] Specifically, the sliding rail mechanism includes a sliding track, two baffle plates, a plurality of second fixing screws, and a plurality of third fixing screws. Among them, the sliding track is connected to the tooling platform through the plurality of third fixing screws provided; the two second fixing screws are respectively installed at both ends of the sliding track after passing through the baffle plates.

[0012] Specifically, the pressing mechanism includes a mounting block, a connecting column, a handle, and a pressing head. Among them, the mounting block is installed on the side of the embedded slot, the connecting column is installed inside the mounting block, the handle is installed at one end of the connecting column; the pressing head is installed at the other end of the connecting column.

[0013] Specifically, a cushion block assembly is arranged on the tooling platform. The cushion block assembly includes a first detachable cushion block, a second detachable cushion block, a third detachable cushion block, and a fourth fixing screw. Among them, the first detachable cushion block, the second detachable cushion block, and the third detachable cushion block are distributed and installed on the side of the sliding rail mechanism; the first detachable cushion block, the second detachable cushion block, and the third detachable cushion block are connected to the tooling platform through the plurality of fourth fixing screws.

[0014] The additional aspects and advantages of the present utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the following description of the embodiments in conjunction with the drawings, where:

[0016] Figure 1 is a schematic structural diagram of the welding tooling for the longitudinal beam guiding assembly of the excavator's lower carriage according to an embodiment of the present utility model;

[0017] Figure 2Schematic diagram of the pressing mechanism of the welding tooling for the longitudinal beam guiding assembly of the lower carriage of an excavator according to an embodiment of the present utility model;

[0018] Figure 3 Schematic diagram of the sliding rail mechanism of the welding tooling for the longitudinal beam guiding assembly of the lower carriage of an excavator according to an embodiment of the present utility model;

[0019] Figure 4 Schematic diagram of the jacking mechanism of the welding tooling for the longitudinal beam guiding assembly of the lower carriage of an excavator according to an embodiment of the present utility model.

[0020] As shown in the figure: 1. Tooling platform; 11. Embedded groove; 2. Positioning mechanism; 21. Positioning pin; 22. First fixing screw; 3. Pressing mechanism; 31. Adjusting component; 311. First bolt; 312. First nut; 313. Spacer; 32. Slide block; 33. Pressing plate; 331. Round hole; 332. Arc-shaped slot; 34. Second bolt; 35. Second nut; 4. Sliding rail mechanism; 41. Sliding track; 42. Baffle; 43. Second fixing screw; 44. Third fixing screw; 5. Jacking mechanism; 51. Mounting block; 52. Connecting column; 53. Handle; 54. Jacking head; 6. Pad component; 61. First detachable pad; 62. Second detachable pad; 63. Third detachable pad; 64. Fourth fixing screw; 7. Pointer pin. Detailed implementation manners

[0021] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present utility model, and should not be construed as limiting the present utility model. On the contrary, the embodiments of the present utility model include all variations, modifications and equivalents falling within the spirit and scope of the appended claims.

[0022] The welding tooling for the longitudinal beam guiding assembly of the lower carriage of an excavator according to an embodiment of the present utility model will be described below with reference to the accompanying drawings.

[0023] As Figures 1-3 shown, the welding tooling for the longitudinal beam guiding assembly of the lower carriage of an excavator according to an embodiment of the present utility model may include a tooling platform 1, a positioning mechanism 2, two pressing mechanisms 3, a sliding rail mechanism 4, two jacking mechanisms 5 and a pointer pin 7.

[0024] Among them, the two jacking mechanisms 5 are installed on the tooling platform 1 perpendicular to each other. An embedded groove 11 is provided on the tooling platform 1, and the position of the embedded groove 11 corresponds to that of the two jacking mechanisms 5.

[0025] It should be noted that the provided clamping mechanism 5 is used to clamp the workpiece directly in front of it.

[0026] The slide rail mechanism 4 is installed on the tooling platform 1 and corresponds to the position of a clamping mechanism 5. The pressing mechanism 3 is installed on the slide rail mechanism 4. The pressing mechanism 3 may include an adjustment component 31, two sliders 32, a pressing plate 33, a second bolt 34, and a second nut 35.

[0027] Among them, the bottoms of the adjustment component 31 and the second bolt 34 are both connected to the slider 32.

[0028] It should be noted that in this embodiment, the adjustment component 31 and the second bolt 34 can move in the slide rail mechanism 4 through the provided slider 32 to adjust the relative distance between the two pressing mechanisms 3, so as to adapt to workpieces of different size specifications.

[0029] The pressing plate 33 is provided with a round hole 331 and an arc-shaped groove 332. The adjustment component 31 passes through the arc-shaped groove 332 and is connected to the slider 32. The second bolt 34 passes through the round hole 331 and the second nut 35 in sequence and is then connected to the slider 32.

[0030] It should be noted that the provided round hole 331 is used for the second bolt 34 to pass through. The second nut 35 is threadedly connected to the second bolt 34 to keep the pressing plate 33 horizontal.

[0031] It should be noted that the end of the flat plate in this embodiment may be provided with a protrusion.

[0032] A plurality of positioning mechanisms 2 are arranged on the tooling platform 1, and the pointer pin 7 is installed on the tooling platform 1.

[0033] It should be noted that the positioning mechanism 2 in this embodiment may be composed of a positioning pin 21 and a first fixing screw 22 capable of fixing the positioning pin 21 on the tooling platform 1. The height of the positioning pin 21 is higher than that of the slide rail mechanism 4, so as to facilitate the rapid positioning of the workpiece and abut against the workpiece, reducing the time for part assembly and alignment.

[0034] Furthermore, the provided pointer pin 7 is used to position the mechanical welding hand (hereinafter referred to as the manipulator) and calibrate the coordinate origin of the manipulator. Optionally, a sensor is provided on the manipulator, and the manipulator presets the coordinates of the pointer pin 7 (programming coordinate system pointer). The sensor is used to detect the current position and state of the manipulator. When the manipulator reaches the position of the pointer pin 7, the sensor sends a signal to the controller, and then the controller judges whether the manipulator reaches the origin through a preset algorithm and judgment logic. Furthermore, it can ensure the accuracy of welding when the manipulator moves and welds subsequently.

[0035] As for the specific signal transmission of the sensor, the preset algorithm of the controller, and the judgment logic, they are prior arts and will not be elaborated here.

[0036] Specifically, when the welding tooling is needed to weld a workpiece, relevant personnel first place the workpiece between the two pressing mechanisms 3, and adjust the lateral distance between the pressing mechanisms 3 by moving the slider 32 on the slide rail mechanism 4 to adapt to workpieces of different sizes. After the workpiece is placed, turn the second nut 35 according to the thickness of the workpiece to be welded to adjust the height of the pressing plate 33, and at the same time, the pressing plate 33 can be kept horizontal. Then, tighten the adjusting assembly 31, and the two adjusting assemblies 31 press the welding workpiece installed at the bottom of the pressing plate 33 mechanism.

[0037] After that, adjust the top tightening mechanism 5, and the two top tightening mechanisms 5 tighten the workpiece to be welded to avoid shaking during welding. Calibrate the manipulator through the pointer pin 7, and after positioning the origin of the manipulator, the distance between the manipulator and the workpiece to be welded can be adjusted for welding.

[0038] In this way, the longitudinal beam guide components with similar structures but different sizes can be pressed and positioned, increasing the scope of application. At the same time, the welding tooling platform 1 can be connected to the welding manipulator to realize robotic welding, improving the welding efficiency and quality and reducing the welding cost.

[0039] In an embodiment of the present utility model, as Figure 2 shown, the adjusting assembly 31 may include a first bolt 311, a first nut 312, and a gasket 313.

[0040] Among them, the first bolt 311 passes through the arc-shaped slot 332, the first nut 312 is installed on the first bolt 311, and the gasket 313 is arranged between the pressing plate 33 and the first nut 312.

[0041] It should be noted that when the workpiece is placed at the bottom of the pressing mechanism 3, by the threaded connection between the first nut 312 and the first bolt 311, turning the first nut 312 can make the contact between the pressing plate 33 and the workpiece closer, so as to realize the pressing of the workpiece.

[0042] In an embodiment of the present utility model, as Figure 2 and Figure 3 shown, the slide rail mechanism 4 may include a sliding track 41, two baffles 42, a plurality of second fixing screws 43, and a plurality of third fixing screws 44.

[0043] Among them, the sliding track 41 is connected to the tooling platform 1 through a plurality of third fixing screws 44 provided, and the two second fixing screws 43 pass through the baffles 42 and are respectively installed at both ends of the sliding track 41.

[0044] It is understandable that the provided baffle 42 can prevent the slider 32 from sliding out of the sliding track 41.

[0045] In an embodiment of the present utility model, as Figure 4 shown, the pressing mechanism 5 may include a mounting block 51, a connecting column 52, a handle 53, and a pressing head 54.

[0046] Among them, the mounting block 51 is installed on the side of the embedded groove 11, the connecting column 52 is installed inside the mounting block 51, the handle 53 is installed at one end of the connecting column 52, and the pressing head 54 is installed at the other end of the connecting column 52.

[0047] As a possible case, the connecting column 52 is threadedly connected to the mounting block 51. By rotating the handle 53, the connecting column 52 moves in the mounting block 51, so that the pressing head 54 abuts against the part.

[0048] As another possible case, an electric push rod is installed inside the connecting column 52. The electric push rod is connected to the pressing head 54. By controlling the telescoping of the electric push rod, the abutment against the workpiece is realized.

[0049] In an embodiment of the present utility model, as Figure 1 shown, a cushion block assembly 6 is provided on the tooling platform. The cushion block assembly 6 may include a first detachable cushion block 61, a second detachable cushion block 62, a third detachable cushion block 63, and a fourth fixing screw 64.

[0050] Among them, the first detachable cushion block 61, the second detachable cushion block 62, and the third detachable cushion block 63 are distributed and installed on the side of the slide rail mechanism 4. The first detachable cushion block 61, the second detachable cushion block 62, and the third detachable cushion block 63 are connected to the tooling platform 1 through a plurality of fourth fixing screws 64.

[0051] It should be noted that the shapes of the provided first detachable cushion block 61, second detachable cushion block 62, and third detachable cushion block 63 are all different. Relevant staff can splice and install them on the workbench according to the shape of the workpiece to be welded, so as to prevent the workpiece from deforming during welding through the cushion blocks, reduce the repair work on the surface of the workpiece, and further improve the welding quality and efficiency.

[0052] In summary, the welding tooling for the longitudinal beam guiding assembly of the excavator lower frame in the embodiment of the present utility model can press and position the longitudinal beam guiding assemblies with similar structures but different sizes, increase the applicable range. At the same time, it can connect the welding tooling platform with the welding robot to realize robotic welding, improve the welding efficiency and welding quality, and reduce the welding cost.

[0053] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0054] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0055] Although the embodiments of the present utility model have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present utility model. Those of ordinary skill in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present utility model.

Claims

1. A welding tool for a longitudinal beam guide assembly of a lower frame of an excavator, characterized in that: It includes a tooling platform, a positioning mechanism, two clamping mechanisms, a slide rail mechanism, two top clamping mechanisms and a pointer pin, among which: The two tightening mechanisms are installed perpendicularly to each other on the tooling platform; The tooling platform is provided with an embedded groove, and the positions of the embedded groove and the two tightening mechanisms correspond to each other; The slide rail mechanism is installed on the tooling platform and corresponds to the position of one of the tightening mechanisms; The clamping mechanism is installed on the slide rail mechanism, and the clamping mechanism includes an adjustment assembly, two sliders, a pressure plate, a second bolt and a second nut, wherein: The bottoms of the adjusting assembly and the second bolt are both connected to the slider; The pressing plate is provided with a circular hole and an arc groove, and the adjusting assembly passes through the arc groove and is connected to the sliding block; The second bolt passes through the circular hole and the second nut in sequence and is connected to the slider; A plurality of the positioning mechanisms are arranged on the tooling platform, and the pointer pin is installed on the tooling platform.

2. The welding fixture of the excavator lower frame longitudinal beam guide assembly according to claim 1, characterized in that: The adjustment assembly includes a first bolt, a first nut and a washer, wherein: The first bolt passes through the arc groove, and the first nut is installed on the first bolt; The gasket is disposed between the pressure plate and the first nut.

3. The welding fixture of the excavator lower frame longitudinal beam guide assembly according to claim 1, characterized in that: The slide rail mechanism includes a slide rail, two baffles, a plurality of second fixing screws and a plurality of third fixing screws, wherein: The sliding rail is connected to the tooling platform via a plurality of third fixing screws; The two second fixing screws are respectively installed at two ends of the sliding track after passing through the baffle.

4. The welding fixture of the excavator lower frame longitudinal beam guide assembly according to claim 1, characterized in that: The tightening mechanism includes a mounting block, a connecting column, a handle, and a tightening head, wherein: The mounting block is mounted on the side of the embedded groove, the connecting column is mounted inside the mounting block, and the handle is mounted on one end of the connecting column; The tightening head is installed at the other end of the connecting column.

5. The welding fixture of the excavator lower frame longitudinal beam guide assembly according to claim 1, characterized in that: The tooling platform is provided with a cushion block assembly, which includes a first detachable cushion block, a second detachable cushion block, a third detachable cushion block and a fourth fixing screw, wherein: The first detachable pad, the second detachable pad and the third detachable pad are distributed and installed on the sides of the slide rail mechanism; The first detachable cushion block, the second detachable cushion block and the third detachable cushion block are connected to the tooling platform via a plurality of the fourth fixing screws.

Images