Excavator movable arm assembling tool

Abstract

The utility model relates to the field of excavator structure assembly, in particular to an excavator movable arm assembly tool which comprises an installation platform and a movable arm, the movable arm is arranged above the installation platform, centering clamping mechanisms are arranged on the installation platform, side plate clamping mechanisms are arranged between the centering clamping mechanisms at intervals, and the side plate clamping mechanisms are arranged on the installation platform. A hydraulic station and an electrical control system are further arranged on one side of the installation platform, the centering clamping mechanisms comprise the first centering clamping mechanisms and the second centering clamping mechanisms, the first centering clamping mechanisms are symmetrically arranged on the installation platform, and the second centering clamping mechanisms are arranged between the first centering clamping mechanisms. The movable arm assembling device can be compatible with assembling of movable arms of various models, meets the requirement for assembling flexibility of the movable arms of the excavator, is accurate in positioning, improves the assembling precision, and improves the welding efficiency and quality of the movable arms of the excavator.

Description

Technical Field

[0001] This utility model relates to the field of excavator structure assembly, and specifically to an excavator boom assembly tooling. Background Technology

[0002] There are many types and models of excavator booms with large differences in size. The requirements for welding quality and efficiency are getting higher and higher, and the requirements for boom welding technology are becoming more stringent. Traditional welding technology can no longer fully meet the welding process requirements.

[0003] The existing boom assembly welding mainly relies on manual labor with the help of clamping and positioning fixtures. Inaccurate precision, poor consistency of positioning dimensions and the resulting unstable welding quality, as well as low clamping efficiency, have become bottlenecks in the development of this field. Existing fixtures are complicated to change, have low compatibility, low degree of mechanical automation, low efficiency, poor precision, and are prone to causing deviation of the neutral line of the front and rear shaft holes, resulting in uncontrollable welding quality. Utility Model Content

[0004] To address the aforementioned issues, this utility model provides a tooling for assembling excavator booms, which is compatible with the assembly of various boom models, meets the flexibility requirements of excavator boom assembly, and provides precise positioning, thereby improving the accuracy of assembly and enhancing the efficiency and quality of excavator boom welding.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: a tooling for assembling a boom of an excavator, comprising an installation platform and a boom, wherein the boom is placed above the installation platform, the installation platform is provided with a centering clamping mechanism, and side plate clamping mechanisms are provided at intervals between the centering clamping mechanisms, and a hydraulic station and an electrical control system are also provided on one side of the installation platform;

[0006] The centering clamping mechanism includes a first centering clamping mechanism and a second centering clamping mechanism. The first centering clamping mechanism is symmetrically arranged on the mounting platform, and the second centering clamping mechanism is located between the first centering clamping mechanisms.

[0007] Preferably, the installation platform is provided with a first guide rail, a slider is slidably connected on the first guide rail, the slider is fixedly connected to a first centering clamping mechanism, and a first limiting block is also provided on the first guide rail.

[0008] Preferably, the first centering clamping mechanism includes a first mounting base, which is fixedly connected to the slider. A first bracket is symmetrically arranged on the first mounting base, and a first clamping cylinder is fixedly connected to the first bracket. The output end of the first clamping cylinder is connected to a first guide post through a first connecting plate. A first clamping block is provided at the end of the first guide post. An L-shaped positioning block and a first control valve are also symmetrically arranged on the first mounting base, and the first control valve is controlled and connected to the first clamping cylinder.

[0009] Preferably, the first mounting base is further provided with a lateral positioning block, and the first bracket is provided with a bracket cover plate.

[0010] Preferably, the second centering clamping mechanism includes a second mounting base, on which positioning components are symmetrically arranged. The positioning components include a first positioning component and a second positioning component. The first positioning component is slidably connected to the second mounting base, and the second mounting base is also provided with a second limiting block.

[0011] The positioning component includes a support, on which a first lifting cylinder is radially mounted. The output end of the first lifting cylinder is provided with a first connecting block. The first connecting block is provided with a slide block. The support is also radially mounted with a second guide rail. The slide block is slidably connected to the second guide rail. The support is also provided with a third limiting block to limit the first connecting block. A telescopic cylinder is fixedly connected to the slide block. The output end of the telescopic cylinder is connected to a second guide post through a second connecting plate. The end of the second guide post is provided with a second clamping block. A second control valve is provided on one side of the support.

[0012] The second mounting base is also provided with a first support assembly, which includes a first support base, a second lifting cylinder on the first support base, and a first support block at the output end of the second lifting cylinder.

[0013] Preferably, the side plate clamping mechanism includes a first fixed frame arranged symmetrically, a second clamping cylinder fixedly connected to the first fixed frame, a second connecting block connected to the output end of the second clamping cylinder, a guide rod provided on the second connecting block, a third clamping block and a magnet provided on the surface of the second connecting block, a mounting plate provided on the side of the first fixed frame, a pressing cylinder fixedly connected to the mounting plate, a pressing block provided at the output end of the pressing cylinder, and a third control valve provided on one side of the first fixed frame.

[0014] Preferably, the side plate clamping mechanism further includes a first support component and a second support component, the second support component including a second support base, and second support blocks provided on both sides and the top of the second support base.

[0015] Preferably, the side plate clamping mechanism further includes a base, and the first fixing frame is fixedly connected to the top of the base.

[0016] Preferably, the base is also symmetrically provided with a second fixing frame, and the symmetrically provided second fixing frame is respectively provided with a third clamping cylinder and a fourth limiting block, and the output end of the third clamping cylinder is provided with a fourth clamping block.

[0017] Preferably, the first control valve, the second control valve, and the third control valve are connected to the hydraulic station and to the electrical control system, and each of the first control valve, the second control valve, and the third control valve is provided with a protective cover.

[0018] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0019] 1. This utility model utilizes multiple flexible positioning references and adopts one-button clamping and positioning with hydraulic cylinders. According to the assembly process determined by the product, it completes the semi-automatic assembly of the boom. The assembly sequence is reasonable and the logic is clear, and the assembly accuracy and dimensional consistency are effectively guaranteed.

[0020] 2. This utility model not only has a semi-automatic assembly function, but also a positioning mechanism that can be quickly adjusted, and the clamping position can be switched with one key. It can also perform semi-automatic clamping, and is compatible with assembly work of multiple products, multiple sizes, and multiple positions. It realizes flexible production of various types of workpieces, reduces production costs, improves assembly accuracy and assembly efficiency, and provides a strong guarantee for subsequent welding and assembly processes.

[0021] 3. This utility model provides a corresponding clamping mechanism for each component of the boom, and each clamping mechanism is equipped with a control valve to achieve all-round positioning and clamping of each component of the boom, eliminating the tedious work of manual clamping and positioning, reducing labor costs, and improving the quality and stability of assembly.

[0022] 4. This utility model, by setting up multiple sets of centering clamping mechanisms and side plate clamping mechanisms, perfectly fits the positioning and clamping of each component of the boom, realizes flexible assembly and welding of various boom structural parts of different models, effectively controls the accuracy of boom assembly and welding, and provides effective guarantee for the welding quality of the boom.

[0023] 5. This utility model achieves lateral positioning during boom upper ear plate assembly by setting a flexible first positioning component on the second centering clamping mechanism. The positioning adopts a centering clamping with lifting function, which is compatible with the assembly of different boom ear plates. It eliminates problems such as manual marking and positioning, cumbersome procedures, uncontrollable human factors, and long cycle time, thereby reducing positioning time and improving assembly efficiency and accuracy. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the excavator boom assembly tooling of this utility model;

[0025] Figure 2 This is a schematic diagram of the boom structure of the excavator boom assembly of this utility model.

[0026] Figure 3 This is a schematic diagram of the structure of the first centering and clamping mechanism of the excavator boom assembly of this utility model for the tooling. Figure 1 ;

[0027] Figure 4 This is a schematic diagram of the structure of the first centering and clamping mechanism of the excavator boom assembly of this utility model for the tooling. Figure 2 ;

[0028] Figure 5 This is a schematic diagram of the first centering and clamping mechanism of the excavator boom assembly of this utility model for the tooling. Figure 1 Exploded view;

[0029] Figure 6 This is a schematic diagram of the second centering and clamping mechanism of the excavator boom assembly of this utility model for the tooling;

[0030] Figure 7 This is a schematic diagram of the structure of the second mounting base of the excavator boom assembly of this utility model;

[0031] Figure 8 This is a schematic diagram of the positioning component of the excavator boom assembly of this utility model for positioning the tooling;

[0032] Figure 9 This is a schematic diagram of the side plate clamping mechanism of the excavator boom assembly of this utility model for clamping the tooling. Figure 1 ;

[0033] Figure 10 This is a schematic diagram of the side plate clamping mechanism of the excavator boom assembly of this utility model for clamping the tooling. Figure 2 ;

[0034] Figure 11 This is a schematic diagram of the side plate clamping mechanism of the excavator boom assembly of this utility model for clamping the tooling. Figure 3 ;

[0035] Figure 12 This is a schematic diagram of the side plate clamping mechanism of the excavator boom assembly of this utility model for clamping the tooling. Figure 1 Exploded view;

[0036] In the diagram: 1. Mounting platform; 11. First guide rail; 12. Slider; 13. First limit block; 2. Boom; 3. Centering and clamping mechanism; 31. First centering and clamping mechanism; 311. First mounting base; 312. First bracket; 313. First clamping cylinder; 314. First connecting plate; 315. First guide post; 316. First clamping block; 317. L-shaped positioning block; 318. First control valve; 319. Lateral positioning block; 32. Second centering and clamping mechanism; 321. Second mounting base; 322. Positioning assembly; 323. First positioning assembly; 324. Second positioning assembly; 325. Second limit block; 326. Support; 327. First lifting cylinder; 328. First connecting block; 329. Slide; 3210. Second guide rail; 3211. Third limit block; 3212. Telescopic cylinder 3213. Second connecting plate; 3214. Second guide post; 3215. Second clamping block; 3216. Second control valve; 4. Side plate clamping mechanism; 41. First fixing frame; 42. Second clamping cylinder; 43. Second connecting block; 44. Guide rod; 45. Third clamping block; 46. Magnet; 47. Mounting plate; 48. Pressing cylinder; 49. Pressing block; 4110. Third control valve; 4111. Base; 4112. Second fixing frame; 4113. Third clamping cylinder; 4114. Fourth limit block; 4115. Fourth clamping block; 5. Hydraulic station; 6. Electrical control system; 7. First support assembly; 71. First support base; 72. Second lifting cylinder; 73. First support block; 8. Second support assembly; 81. Second support base; 82. Second support block; 9. Protective cover. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0038] refer to Figures 1 to 9 An excavator boom assembly tooling includes an installation platform 1 and a boom 2. The boom 2 is placed above the installation platform 1. The installation platform 1 is provided with a centering clamping mechanism 3. Side plate clamping mechanisms 4 are provided at intervals between the centering clamping mechanisms 3. A hydraulic station 5 and an electrical control system 6 are also provided on one side of the installation platform 1.

[0039] The centering clamping mechanism 3 includes a first centering clamping mechanism 31 and a second centering clamping mechanism 32. The first centering clamping mechanism 31 is symmetrically arranged on the mounting platform 1, and the second centering clamping mechanism 32 is arranged between the first centering clamping mechanisms 31.

[0040] The installation platform 1 is provided with a first guide rail 11, and a slider 12 is slidably connected to the first guide rail 11. The slider 12 is fixedly connected to the first centering clamping mechanism 31. The first guide rail 11 is also provided with a first limiting block 13.

[0041] The first centering clamping mechanism 31 includes a first mounting base 311, which is fixedly connected to the slider 12. A first bracket 312 is symmetrically arranged on the first mounting base 311. A first clamping cylinder 313 is fixedly connected to the first bracket 312. The output end of the first clamping cylinder 313 is connected to a first guide post 315 through a first connecting plate 314. A first clamping block 316 is provided at the end of the first guide post 315. An L-shaped positioning block 317 and a first control valve 318 are also symmetrically arranged on the first mounting base 311. The first control valve 318 is controlled and connected to the first clamping cylinder 313.

[0042] The first mounting base 311 is also provided with a lateral positioning block 319, and the first bracket 312 is provided with a bracket cover plate 3110.

[0043] Specifically, the first centering clamping mechanism 31 is used for positioning and clamping the front fork seat and rear axle seat of the excavator boom. The first mounting seat 311 is adjusted to the corresponding position according to different workpiece models. The first mounting seat 311 is fixed by the first limiting block 13. The first clamping cylinder 313 drives the first guide column 315 and the first clamping block 316 to the retracted state, and the workpiece to be assembled is placed, so that the front side of the workpiece is close to the L-shaped positioning block 317 and the side of the workpiece is close to the lateral positioning block 319. Then, the first control valve 318 controls the extension of the first clamping cylinder 313 to realize the centering and clamping of the assembled workpiece.

[0044] The second centering clamping mechanism 32 includes a second mounting base 321. The second mounting base 321 is symmetrically provided with positioning components 322. The positioning components 322 include a first positioning component 323 and a second positioning component 324. The first positioning component 323 is slidably connected to the second mounting base 321. The second mounting base 321 is also provided with a second limiting block 325.

[0045] The positioning component 322 includes a support 326. A first lifting cylinder 327 is radially provided on the support 326. A first connecting block 328 is provided at the output end of the first lifting cylinder 327. A slide block 329 is provided on the first connecting block 328. A second guide rail 3210 is also radially provided on the support 326. The slide block 329 is slidably connected to the second guide rail 3210. A third limiting block 3211 is also provided on the support 326 to limit the first connecting block 328. A telescopic cylinder 3212 is fixedly connected to the slide block 329. A second guide post 3214 is connected to the output end of the telescopic cylinder 3212 through a second connecting plate 3213. A second clamping block 3215 is provided at the end of the second guide post 3214. A second control valve 3216 is provided on one side of the support 326.

[0046] The second mounting base 321 is also provided with a first support component 7, which includes a first support base 71, a second lifting cylinder 72 on the first support base 71, and a first support block 73 at the output end of the second lifting cylinder 72.

[0047] Specifically, the second centering clamping mechanism 32 positions and fixes the middle section welded part and the upper ear plate of the excavator boom, the first positioning component 323 positions the upper ear plate, and the second positioning component 324 positions the middle section welded part of the boom. According to different boom products, the first positioning component 323 and the second positioning component 324 are adjusted to appropriate positions, and the upper ear plate and the middle section welded part of the boom are positioned by the second clamping block 3215.

[0048] The side plate clamping mechanism 4 includes a first fixed frame 41 arranged symmetrically. A second clamping cylinder 42 is fixedly connected to the first fixed frame 41. A second connecting block 43 is connected to the output end of the second clamping cylinder 42. A guide rod 44 is provided on the second connecting block 43. A third clamping block 45 and a magnet 46 are also provided on the surface of the second connecting block 43. A mounting plate 47 is provided on the side of the first fixed frame 41. A pressing cylinder 48 is fixedly connected to the mounting plate 47. A pressing block 49 is provided at the output end of the pressing cylinder 48. A third control valve 4110 is also provided on one side of the first fixed frame 41.

[0049] The side plate clamping mechanism 4 also includes a first support component 7 and a second support component 8. The second support component 8 includes a second support base 81, and second support blocks 82 are provided on both sides and the top of the second support base.

[0050] The side plate clamping mechanism 4 also includes a base 4111, and the first fixing frame 41 is fixedly connected to the top of the base 4111.

[0051] The base 4111 is also symmetrically provided with a second fixing frame 4112. The symmetrically provided second fixing frame 4112 is respectively provided with a third clamping cylinder 4113 and a fourth limiting block 4114. The output end of the third clamping cylinder 4113 is provided with a fourth clamping block 4115.

[0052] Specifically, the first support assembly 7 and the second support assembly 8 support and fix the front lower cover plate and the rear lower cover plate of the excavator boom;

[0053] The side plate clamping mechanism 4 is used to adsorb, position, and fix the front and rear side plates of the excavator boom. The front and rear lower cover plates are placed on the first support block 73 and the second support block 82, and then the front and rear side plates on both sides are placed in sequence. The corresponding third control valve 4110 is operated, which in turn controls the second clamping cylinder 42 and the pressing cylinder 48 to press the front and rear side plates together. Since the second clamping cylinder 42 and the pressing cylinder 48 both have a certain stroke, they can meet the requirements of flexible boom assembly work compatible with various models. The height of the base 4111 can be adjusted according to the different positions set by the side plate clamping mechanism 4.

[0054] The first control valve 318, the second control valve 3216, and the third control valve 4110 are connected to the hydraulic station 5 and to the electrical control system 6. Each of the first control valve 318, the second control valve 3216, and the third control valve 4110 is provided with a protective cover 9.

[0055] Assembly process: The tooling adopts a semi-automatic method. The tooling clamps and positions the workpiece by manually operating the manual reversing valve. The loading sequence of the excavator boom is: front lower cover plate → rear lower cover plate → boom middle section welded part → rear axle seat → front fork seat → front side plate → rear side plate → upper ear plate.

[0056] Working principle: First, the first centering clamping mechanism is manually slid to the corresponding position and clamped according to the boom model to be assembled. At the same time, all hydraulic cylinders are ensured to be in the retracted state. The boom materials are hoisted onto the tooling in the corresponding loading sequence. The control valves of the corresponding hydraulic cylinders are operated to clamp the boom materials in the clamping sequence. Then, the welding machine is operated to spot weld the workpiece to fix it, thus completing the assembly and welding of the boom.

[0057] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tooling assembly for an excavator boom assembly, comprising a mounting platform (1) and a boom (2), wherein the boom (2) is positioned above the mounting platform (1), characterized in that: The installation platform (1) is provided with a centering clamping mechanism (3), and side plate clamping mechanisms (4) are provided at intervals between the centering clamping mechanisms (3). A hydraulic station (5) and an electrical control system (6) are also provided on one side of the installation platform (1). The centering clamping mechanism (3) includes a first centering clamping mechanism (31) and a second centering clamping mechanism (32). The first centering clamping mechanism (31) is symmetrically arranged on the installation platform (1), and the second centering clamping mechanism (32) is arranged between the first centering clamping mechanisms (31).

2. The excavator boom assembly tooling according to claim 1, characterized in that: The installation platform (1) is provided with a first guide rail (11), and a slider (12) is slidably connected on the first guide rail (11). The slider (12) is fixedly connected to the first centering clamping mechanism (31). The first guide rail (11) is also provided with a first limiting block (13).

3. The excavator boom assembly tooling according to claim 2, characterized in that: The first centering clamping mechanism (31) includes a first mounting base (311), which is fixedly connected to the slider (12). A first bracket (312) is symmetrically provided on the first mounting base (311). A first clamping cylinder (313) is fixedly connected on the first bracket (312). The output end of the first clamping cylinder (313) is connected to a first guide post (315) through a first connecting plate (314). A first clamping block (316) is provided at the end of the first guide post (315). An L-shaped positioning block (317) and a first control valve (318) are also symmetrically provided on the first mounting base (311). The first control valve (318) is controlled and connected to the first clamping cylinder (313).

4. The excavator boom assembly tooling according to claim 3, characterized in that: The first mounting base (311) is also provided with a lateral positioning block (319), and the first bracket (312) is provided with a bracket cover plate (3110).

5. The excavator boom assembly tooling according to claim 4, characterized in that: The second centering clamping mechanism (32) includes a second mounting base (321), on which positioning components (322) are symmetrically provided. The positioning components (322) include a first positioning component (323) and a second positioning component (324). The first positioning component (323) is slidably connected to the second mounting base (321), and the second mounting base (321) is also provided with a second limiting block (325). The positioning component (322) includes a support (326), on which a first lifting cylinder (327) is radially arranged. A first connecting block (328) is provided at the output end of the first lifting cylinder (327). A slide block (329) is provided on the first connecting block (328). A second guide rail (3210) is also radially arranged on the support (326). The slide block (329) is slidably connected to the second guide rail (3210). The first connecting block (328) is also provided with a third limiting block (3211) to limit the first connecting block (328). A telescopic cylinder (3212) is fixedly connected to the slide (329). The output end of the telescopic cylinder (3212) is connected to a second guide post (3214) through a second connecting plate (3213). A second clamping block (3215) is provided at the end of the second guide post (3214). A second control valve (3216) is provided on one side of the support (326). The second mounting base (321) is also provided with a first support component (7), the first support component (7) includes a first support base (71), the first support base (71) is provided with a second lifting cylinder (72), and the output end of the second lifting cylinder (72) is provided with a first support block (73).

6. The excavator boom assembly tooling according to claim 5, characterized in that: The side plate clamping mechanism (4) includes a first fixed frame (41) arranged symmetrically. A second clamping cylinder (42) is fixedly connected to the first fixed frame (41). A second connecting block (43) is connected to the output end of the second clamping cylinder (42). A guide rod (44) is provided on the second connecting block (43). A third clamping block (45) and a magnet (46) are also provided on the surface of the second connecting block (43). An mounting plate (47) is provided on the side of the first fixed frame (41). A pressing cylinder (48) is fixedly connected to the mounting plate (47). A pressing block (49) is provided at the output end of the pressing cylinder (48). A third control valve (4110) is also provided on one side of the first fixed frame (41).

7. The excavator boom assembly tooling according to claim 6, characterized in that: The side plate clamping mechanism (4) further includes a first support component (7) and a second support component (8). The second support component (8) includes a second support base (81), and second support blocks (82) are provided on both sides and the top of the second support base.

8. The excavator boom assembly tooling according to claim 7, characterized in that: The side plate clamping mechanism (4) also includes a base (4111), and the first fixing frame (41) is fixedly connected to the top of the base (4111).

9. The excavator boom assembly tooling according to claim 8, characterized in that: The base (4111) is also symmetrically provided with a second fixing frame (4112). The symmetrically provided second fixing frame (4112) is respectively provided with a third clamping cylinder (4113) and a fourth limiting block (4114). The output end of the third clamping cylinder (4113) is provided with a fourth clamping block (4115).

10. The excavator boom assembly tooling according to claim 9, characterized in that: The first control valve (318), the second control valve (3216) and the third control valve (4110) are connected to the hydraulic station (5) and to the electrical control system (6). The first control valve (318), the second control valve (3216) and the third control valve (4110) are all provided with protective covers (9).

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