A turn-over excavator boom assembling tool

Abstract

The utility model discloses a kind of turnover excavator movable arm assembly tool, belong to excavator movable arm assembly technical field. Including the first base of rotationally connected with first support seat, the second base of rotationally connected with second support seat. Wherein, first support seat and second support seat can rotate coaxially, and load workbench is connected between first support seat, second support seat, and the positive and negative two sides of load workbench are respectively provided with tool mechanism for assembling excavator movable arm, overturning drive unit for driving load workbench overturning is set on first base;A kind of turnover excavator movable arm assembly tool of the utility model, to solve the inconvenient arm welding position adjustment of existing tool, the problem of low tool utilization rate.

Description

Technical Field

[0001] This utility model belongs to the field of excavator boom assembly technology, specifically relating to a tilting excavator boom assembly fixture. Background Technology

[0002] In the manufacturing process of excavators, the boom is a key component, and its assembly quality directly affects the overall performance and working efficiency of the excavator.

[0003] Existing excavator boom assembly fixtures have several shortcomings: Firstly, after pre-assembly, the excavator boom's overall position is relatively fixed, making it extremely inconvenient for workers to weld parts of the boom. This often requires additional equipment to adjust the boom position multiple times, wasting significant manpower and resources and severely impacting assembly efficiency and quality. Secondly, after welding, the excavator boom needs to be kept fixed in the fixture and allowed to cool naturally to prevent bending or twisting. Therefore, workers cannot perform the assembly and welding of the next excavator boom on the same fixture, resulting in low fixture utilization and limited production cycle time. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a tilting excavator boom assembly tooling to solve the problems of inconvenient boom welding position adjustment and low tooling utilization rate in the existing tooling.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a tilting excavator boom assembly fixture, comprising a first base rotatably connected to a first support seat and a second base rotatably connected to a second support seat; The first support base and the second support base are coaxially rotatable, and a load workbench is connected between the first support base and the second support base. The front and back sides of the load workbench are respectively provided with tooling mechanisms for assembling the excavator boom, and the first base is provided with a flipping drive unit for driving the load workbench to flip.

[0006] Optionally, the tooling mechanism includes several horizontal positioning modules, side-stop positioning modules, and ear hole positioning modules that are detachably connected to the load workbench.

[0007] Optionally, the horizontal positioning module includes a vertical rod and a height-equalizing base that are detachably connected to the load workbench; The bottom side of the excavator boom can be attached to the top of the leveling base. A force-bearing arm that can rotate to the top of the excavator boom is rotatably connected to the upright. A first pressure rod that can press down the excavator boom to fit against the top of the leveling base is threaded through and connected to the force-bearing arm.

[0008] Optionally, a rubber block is provided at one end of the first pressure rod that can abut against the excavator boom.

[0009] Optionally, the side-stop positioning module includes a stand and a side base that are detachably connected to the load workbench, and a second pressure rod is threaded through and connected to the stand. When the second pressure rod is twisted, one end of the second pressure rod can move against the excavator boom placed on the top of the equal-height base until it is in contact with the side base.

[0010] Optionally, a pressure block is rotatably connected to one end of the second pressure rod that can abut against the excavator boom, and the pressure block is elongated.

[0011] Optionally, the ear hole positioning module includes an ear hole positioning seat, an ear hole positioning pin, and an ear plate spacer bushing, wherein the ear hole positioning seat is detachably connected to the load worktable; The top of the ear hole positioning seat, which is used to connect the excavator boom, is provided with a positioning hole corresponding to the ear hole on the excavator boom. The ear hole positioning pin can pass through the ear hole on the excavator boom and be inserted into the positioning hole. The ear plate spacer sleeve can be fitted around the outer periphery of the ear hole positioning pin and supported between two corresponding ear plates on the excavator boom. The load workbench is provided with a pressure module for pressing down the ear plate until it fits against the end of the ear plate spacer sleeve.

[0012] Optionally, the pressurization module includes an ear plate positioning platform detachably connected to the load workbench and a pin-shaft pressurization plate detachably connected to the ear plate positioning platform; The ear plate positioning platform is provided with a positioning bolt along the insertion direction of the ear hole positioning pin and the positioning hole, and one end of the pin pressure plate is movably sleeved on the outer periphery of the positioning bolt, the other end of the pin pressure plate is engaged with the top of the ear hole positioning pin, and the top outer periphery of the ear hole positioning pin is provided with a first shoulder for overlapping the pin pressure plate, the first shoulder can abut against the outside of the ear plate; Furthermore, a third pressure rod is movably threaded through the pin pressure plate and can be threadedly connected to the ear plate positioning table, and the third pressure rod is provided with a second shoulder that can abut against the pin pressure plate.

[0013] Compared with existing technologies, the beneficial effects achieved by this utility model are as follows: By setting the load worktable, which has tooling mechanisms on both sides, on the first and second support seats that can rotate coaxially, the operator can use the tooling mechanisms to assemble and fix the excavator boom on either side of the load worktable. Then, the tilting drive unit can be used to drive the entire load worktable to deflect at a certain angle, greatly increasing the flexibility of excavator boom welding. Simultaneously, by setting tooling mechanisms on both sides of the load worktable, the operator can cyclically use the tooling mechanisms located on both sides of the load worktable. This ensures that the excavator boom can cool naturally after welding without affecting the excavator boom's production efficiency. Attached Figure Description

[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the structure of the tilting excavator boom assembly tooling in a preferred embodiment of the present invention; Figure 2 This is a preferred embodiment of the present invention. Figure 1 A magnified structural diagram at point B; Figure 3 This is a top view of the preferred embodiment of the tilting excavator boom assembly tooling of this utility model; Figure 4 This is a preferred embodiment of the present invention. Figure 3 A schematic cross-sectional view at point AA; The components include: 1. First support seat; 2. First base; 3. Second support seat; 4. Second base; 5. Load workbench; 6. Tilting drive unit; 7. Upright pole; 8. Equal height base; 9. Force arm; 10. First pressure rod; 11. Rubber block; 12. Upright seat; 13. Side support base; 14. Second pressure rod; 15. Pressing block; 16. Ear hole positioning seat; 17. Ear hole positioning pin; 1701. First shoulder; 18. Ear plate spacer bushing; 19. Ear plate positioning platform; 20. Pin shaft pressure plate; 21. Positioning bolt; 22. Third pressure rod; 2201. Second shoulder. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams, which are only used to illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0017] It should be noted that if directional indicators (such as up, down, bottom, top, etc.) are involved in this embodiment, these directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly. 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 number of indicated technical features. Therefore, features defined with "first" and "second" may explicitly or implicitly include one or more of that feature. Unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances. Example 1

[0018] like Figures 1-4 As shown, a tilting excavator boom assembly fixture includes a first base 2 rotatably connected to a first support 1 and a second base 4 rotatably connected to a second support 3. The first support 1 and the second support 3 are coaxially rotatable, and a load workbench 5 is connected between the first support 1 and the second support 3. The load workbench 5 is fixedly connected to the first support 1 and the second support 3 through various connection methods such as welding, bolt fastening, and snap-fit. The front and back sides of the load workbench 5 are respectively provided with fixture mechanisms for assembling the excavator boom, and the first base 2 is provided with a tilting drive unit 6 for driving the load workbench to tilt.

[0019] Specifically, in actual use, the operator can first assemble and weld a set of excavator booms on either the front or back of the load platform 5. During this process, the load platform 5 and the excavator boom fixed to it via the tooling mechanism can be rotated at a certain angle by the tilting drive unit 6, increasing the operator's flexibility in welding the excavator booms. After completing the assembly and welding of this excavator boom, the load platform and the excavator boom fixed to the load platform 5 can be tilted again by the tilting drive unit 6 at a larger angle (generally 180°). This allows the operator to assemble and fix another set of excavator booms via the tooling mechanism on the other side of the load platform 5. The operator can then perform welding operations on this set of excavator booms. During this process, the position of the excavator booms can also be adjusted by the tilting drive unit 6 to increase the operator's work efficiency. In this process, the excavator boom that has been welded first can cool naturally while the tooling is fixed. After the other excavator boom is welded and rotated, the excavator boom that was welded first will have basically cooled down naturally. At this point, the tooling mechanism can be released from fixing the excavator boom, and the next set of excavator booms can be assembled and welded after the excavator boom is moved. Repeating this process not only increases the assembly and welding efficiency of the excavator booms, but also ensures that the excavator can cool down naturally while the tooling is fixed.

[0020] In this embodiment, the first base 2 and the first support 1, and the second base 4 and the second support 3, can be rotatably connected by bearing seats, bushings, etc. The flipping drive unit 6 includes a servo motor, and the output end of the servo motor is driven connected to the rotation shaft of the first support 1. The drive connection can be one or more of the following methods: belt drive connection, chain drive connection, coupling connection, gear drive connection, etc. Example 2

[0021] like Figures 1-4 As shown, based on Embodiment 1, the tooling mechanism includes several horizontal positioning modules, side-stop positioning modules, and ear hole positioning modules that are detachably connected to the load workbench 5, so that operators can flexibly adjust the structural layout of the horizontal positioning modules, side-stop positioning modules, and ear hole positioning modules according to different models and specifications of excavator booms, or replace the corresponding matching horizontal positioning modules, side-stop positioning modules, and ear hole positioning modules.

[0022] Furthermore, such as Figure 1 , Figure 2 , Figure 3As shown, the horizontal positioning module includes a vertical pole 7 and a leveling base 8 detachably connected to the load platform 5. The bottom side of the excavator boom can overlap the top of the leveling base 8, and the top of the leveling base 8 serves as a horizontal reference surface for assembling the excavator boom. Operators can pre-assemble the excavator boom on this horizontal reference surface (assembling the various components of the excavator boom together according to the set positions). Simultaneously, a load-bearing arm 9, rotatably connected to the vertical pole 7, can rotate to the top of the excavator boom. A first pressure rod 10, threaded through and connected to the load-bearing arm 9, can press the excavator boom down to contact the top of the leveling base 8. Specifically, the load-bearing arm 9 and the vertical pole 7 can be rotatably (pivotibly) connected via bearings, hinges, pins, etc. By rotating the load-bearing arm 9, after the operator completes the pre-assembly of the excavator boom, the first pressure rod 10 can be moved to the top of the excavator boom. Then, by twisting the first pressure rod 10, the end of which is located below the load-bearing arm 9 can gradually approach the excavator boom until it comes into contact with the excavator boom and applies a certain pressure to the excavator boom to fix the position of the excavator boom on the level base 8.

[0023] It should be noted that in this technical solution, if... Figure 2 As shown, a rubber block 11 is provided on one end of the first pressure rod 10 that can abut against the excavator boom, so as to avoid rigid contact between the excavator boom and the first pressure rod 10 and increase the friction between the first pressure rod 10 and the excavator boom.

[0024] Furthermore, such as Figure 2 , Figure 3 As shown, the side-stop positioning module includes a stand 12 detachably connected to the load workbench 5 and a side base 13. A second pressure rod 14 is threaded through and connected to the stand 12. When the second pressure rod 14 is twisted, one end of the second pressure rod 14 can move against the excavator boom placed on the top of the equal-height base 8 to abut against the side base 13, so as to further fix the position of the excavator boom. The side of the side base 13 that can abut against the excavator boom can serve as a vertical positioning reference for the excavator boom, so as to constrain and position the excavator boom on the horizontal reference plane.

[0025] Furthermore, such as Figure 2 As shown, a pressure block 15 is rotatably connected to one end of the second pressure rod 14 that can abut against the excavator boom. The pressure block 15 is elongated. This is to disperse the pressure exerted by the second pressure rod 14 on the excavator boom and prevent pressure concentration that could cause indentations or scratches on the surface of the excavator boom.

[0026] Furthermore, such as Figure 2As shown, the ear hole positioning module includes an ear hole positioning seat 16, an ear hole positioning pin 17, and an ear plate spacer sleeve 18. The ear hole positioning seat 16 is detachably connected to the load worktable 5. The ear hole positioning seat 16 has a positioning hole on its top for attaching to the excavator boom, corresponding to the ear holes on the excavator boom. The ear hole positioning pin 17 can pass through the ear holes on the excavator boom and engage with the positioning hole to accurately position the ear holes on the excavator boom. Simultaneously, the ear plate spacer sleeve 18 can be fitted around the ear hole positioning pin 17 and supported between two corresponding ear plates on the excavator boom to accurately position the distance between the ear plates on the excavator boom.

[0027] It should be noted that the load table 5 is equipped with a pressure module for pressing down the ear plate until it is in contact with the end of the ear plate spacer sleeve 18. Specifically, the pressure module includes an ear plate positioning platform 19 detachably connected to the load table 5 and a pin pressure plate 20 detachably connected to the ear plate positioning platform 19. The ear plate positioning platform 19 has a positioning bolt 21 along the insertion direction of the ear hole positioning pin 17 and the positioning hole. One end of the pin pressure plate 20 is movably sleeved on the outer periphery of the positioning bolt 21, and the other end of the pin pressure plate 20 is engaged with the top of the ear hole positioning pin 17. A first shoulder 1701 is provided on the outer periphery of the top of the ear hole positioning pin 17 for overlapping the pin pressure plate 20. The first shoulder 1701 can abut against the outer side of the ear plate. Furthermore, a third pressure rod 22 is movably threaded through the pin pressure plate 20 and can be threadedly connected to the ear plate positioning table 19, and the third pressure rod 22 is provided with a second shoulder 2201 that can abut against the pin pressure plate 20.

[0028] In actual operation, by twisting (tightening) the third pressure rod 22 connected to the ear plate positioning table 19, pressure can be applied to the ear plate on the excavator boom through the pin pressure plate 20 and the first shoulder 1701 of the ear hole positioning pin 17, thereby accurately positioning and fixing the position of the ear plate on the excavator boom.

[0029] In this embodiment, the load workbench 5 is provided with threaded bottom holes corresponding to the installation positions of the upright 7, the leveling base 8, the upright 12, the side base 13, the ear hole positioning seat 16, and the ear plate positioning table 19. The upright 7, the leveling base 8, the upright 12, the side base 13, the ear hole positioning seat 16, and the ear plate positioning table 19 are also provided with mounting holes for bolts, thereby realizing the detachable connection between the upright 7, the leveling base 8, the upright 12, the side base 13, the ear hole positioning seat 16, the ear plate positioning table 19 and the load workbench 5.

[0030] Working Principle: The operator can assemble and weld one set of excavator booms on either the front or back of the load platform 5. During this process, the load platform 5 and the excavator booms fixed to it via the tooling mechanism can be rotated at a certain angle by the tilting drive unit 6, increasing the operator's flexibility in welding the excavator booms. After completing the assembly and welding of this excavator boom, the load platform 5 can be tilted again by the tilting drive unit 6, allowing the operator to assemble and fix another set of excavator booms on the other side of the load platform 5 using the tooling mechanism. During this process, the excavator boom that was welded first can cool naturally while the tooling is fixed. After the other excavator boom is welded and tilted, the excavator boom that was welded first will have basically cooled naturally. At this point, the tooling mechanism can be released to fix the excavator boom, and the next set of excavator booms can be assembled and welded after the excavator boom is moved. This process is repeated, which not only increases the efficiency of excavator boom assembly and welding but also ensures that the excavator can cool naturally while the tooling is fixed.

[0031] Based on the preferred embodiments of this utility model described above, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A tilting excavator boom assembly fixture, characterized in that: It includes a first base (2) rotatably connected to a first support (1) and a second base (4) rotatably connected to a second support (3); The first support base (1) and the second support base (3) are coaxially rotatable, and a load workbench (5) is connected between the first support base (1) and the second support base (3). The front and back sides of the load workbench (5) are respectively provided with tooling mechanisms for assembling the excavator boom, and a flip drive unit (6) for driving the load workbench to flip is provided on the first base (2).

2. The tilting excavator boom assembly fixture according to claim 1, characterized in that: The tooling mechanism includes several horizontal positioning modules, side-stop positioning modules and ear hole positioning modules that are detachably connected to the load workbench (5).

3. The tilting excavator boom assembly fixture according to claim 2, characterized in that: The horizontal positioning module includes a vertical rod (7) and a height-equal base (8) that are detachably connected to the load workbench (5). The bottom side of the excavator boom can be attached to the top of the leveling base (8). A force arm (9) that can rotate to the top of the excavator boom is rotatably connected to the upright (7). A first pressure rod (10) that can press down the excavator boom to fit against the top of the leveling base (8) is threaded through and connected to the force arm (9).

4. The tilting excavator boom assembly fixture according to claim 3, characterized in that: A rubber block (11) is provided on one end of the first pressure rod (10) that can abut against the excavator boom.

5. The tilting excavator boom assembly fixture according to claim 3, characterized in that: The side-stop positioning module includes a stand (12) detachably connected to the load workbench (5) and a side base (13), and a second pressure rod (14) is threaded through and connected to the stand (12). When the second pressure rod (14) is twisted, one end of the second pressure rod (14) can move against the excavator boom placed on the top of the equal height base (8) to abut against the side base (13).

6. The tilting excavator boom assembly fixture according to claim 5, characterized in that: The second pressure rod (14) has a pressure block (15) rotatably connected to one end that can abut against the excavator boom. The pressure block (15) is long and narrow.

7. The tilting excavator boom assembly fixture according to claim 2, characterized in that: The ear hole positioning module includes an ear hole positioning seat (16), an ear hole positioning pin (17), and an ear plate spacer bushing (18). The ear hole positioning seat (16) is detachably connected to the load worktable (5). The ear hole positioning seat (16) is provided with a positioning hole corresponding to the ear hole on the excavator boom. The ear hole positioning pin (17) can pass through the ear hole on the excavator boom and be inserted into the positioning hole. The ear plate spacer sleeve (18) can be sleeved on the outer periphery of the ear hole positioning pin (17) and supported between two corresponding ear plates on the excavator boom. The load workbench (5) is provided with a pressure module for pressing down the ear plate to fit against the end of the ear plate spacer sleeve (18).

8. The tilting excavator boom assembly fixture according to claim 7, characterized in that: The pressurization module includes an ear plate positioning platform (19) detachably connected to the load worktable (5) and a pin-shaft pressurization plate (20) detachably connected to the ear plate positioning platform (19). The ear plate positioning platform (19) is provided with a positioning bolt (21) along the insertion direction of the ear hole positioning pin (17) and the positioning hole. One end of the pin pressure plate (20) is movably sleeved on the outer periphery of the positioning bolt (21), and the other end of the pin pressure plate (20) is engaged with the top of the ear hole positioning pin (17). The top outer periphery of the ear hole positioning pin (17) is provided with a first shoulder (1701) for overlapping the pin pressure plate (20). The first shoulder (1701) can abut against the outside of the ear plate. Furthermore, a third pressure rod (22) is movably threaded through the pin pressure plate (20) and can be threadedly connected to the ear plate positioning table (19), and the third pressure rod (22) is provided with a second shoulder (2201) that can abut against the pin pressure plate (20).

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