A quick changeover tooling for excavator boom welding pads

Abstract

The utility model discloses a kind of quick change tooling of excavator bucket rod spliced pad height block, including base, overturning support block, multiple different specifications pad height blocks and locking parts;Base is overall U-shaped structure, including bottom plate and a pair of mutually opposed side plates, the bottom plate is installed on bucket rod splicing point tooling by detachable fixing piece;Overturning support block straddles on two side plates, and can overturn on two side plates;Multiple different specifications pad height blocks are installed on the overturning support block by detachable fixing piece, the pad height block needed is rotated upwards by overturning support block;Locking parts are configured to be fixed and unfix between the overturning support block and base.The utility model adopts quick overturning structure, and integrated storage with bucket rod splicing point tooling, reduces the difficulty of change operation, shortens change cycle.

Description

Technical Field

[0001] This utility model relates to a quick-change tooling for welding and raising blocks for excavator booms, belonging to the field of excavator technology. Background Technology

[0002] With the diversification of market demand and the proliferation of excavator models and operating conditions, the booms of different models vary in size, shape, and structure. During production, existing tooling faces numerous challenges when switching between different boom models. For example, significant time is required for disassembly, readjustment, and reassembly of the tooling, leading not only to low production efficiency but also to quality issues such as inaccurate positioning due to frequent adjustments. Frequent tooling changes and adjustments increase equipment downtime, raise production costs, and hinder the smooth execution of production plans. Therefore, there is an urgent need for a tooling system capable of rapid model changeover to address these problems and improve production flexibility, efficiency, and quality stability. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this utility model provides a quick-change tooling for excavator stick welding pads. It adopts a quick-flipping structure and integrates with the stick splicing tooling for storage, reducing the difficulty of changeover operations and shortening the changeover cycle.

[0004] This utility model is achieved according to the following technical solution: A quick-change tooling for excavator boom welding support blocks includes: The base has an overall U-shaped structure, including a bottom plate and a pair of opposing side plates. The bottom plate is mounted on the boom assembly tooling by a detachable fastener. The flip support block spans across the two side plates and can be flipped on both side plates; Multiple shims of different sizes are mounted on the flip support block by detachable fasteners. The desired shim is rotated upward by flipping the support block. The locking component is configured to secure and release the flip support block and the base.

[0005] In some embodiments, each of the two side plates has a groove arranged opposite to each other and extending vertically downward in the middle area of ​​its top surface. A baffle extending vertically upward is fixed at the outer edge of each of the two grooves. The flip support block is engaged in the groove between the two baffles to support the flip support block and the multiple shims. When the locking component releases the flip support block from the base, the flip support block is lifted up to disengage from the grooves on both sides, so that the flip support block can be flipped.

[0006] In some embodiments, the locking component is a wing screw, and each of the two baffles has a coaxial mounting hole in the middle region. The flip support block has a threaded hole in the middle region of the end face facing the baffle. The wing screw is inserted into the mounting hole and tightened in the threaded hole. The fastening and loosening of the flip support block and the base can be achieved by tightening and loosening the wing screw.

[0007] In some embodiments, the mounting hole is an elongated hole extending in the vertical direction, and the length of the elongated hole satisfies the following condition: when the wing screw is loosened and does not need to be removed, the flip support block and the wing screw are lifted up so that the flip support block can disengage from the two grooves.

[0008] In some embodiments, the flip support block is a square block, and different sized shims are installed on the four sides of the flip support block in the width direction.

[0009] In some embodiments, each of the four sides of the flip support block is provided with a raised block of different heights; or, on the four sides of the flip support block, a portion of the sides are provided with a raised block, and another portion of the sides are provided with a raised block composed of at least two raised blocks stacked together.

[0010] In some embodiments, the shim block is provided with at least one through hole, and the flip support block is provided with a threaded hole arranged coaxially with the through hole. After a bolt, which serves as the detachable fastener, is inserted into the through hole and tightened into the threaded hole, the shim block and the flip support block are fixed and unfixed by tightening and loosening the bolt.

[0011] In some embodiments, the base plate is provided with at least one through hole, and the stick splice fixture is provided with a threaded hole arranged coaxially with the through hole. After a bolt used as the detachable fastener is inserted into the through hole, it is tightened into the threaded hole. The fixing and loosening of the base and the stick splice fixture are achieved by tightening and loosening the bolt.

[0012] In some embodiments, at least one support plate is fixed between the top surface of the base plate and the inner surfaces of the two side plates.

[0013] In some embodiments, the raised block is provided with an identifier for displaying information about the raised block.

[0014] The beneficial effects of this utility model are: (1) It greatly reduces the time spent by workers installing and removing bolts, shortens the changeover cycle, and improves changeover efficiency.

[0015] (2) The raised blocks and the assembly tooling are integrated for storage, eliminating the need for separate storage, reducing space waste and improving workshop space utilization.

[0016] (3) The pad blocks are marked with error prevention signs. When a specific tooling is needed, the operator only needs to flip the pad blocks. There is no need to spend a lot of time checking each shelf and each area. Even when there are many types of tooling, the tooling change can be completed quickly and accurately.

[0017] (4) Accurately grasp information such as the quantity, entry and exit status and usage status of tooling to reduce the occurrence of tooling loss.

[0018] (5) Reduce reliance on operators’ personal memory and experience, ensure quality stability during mass production, and improve product quality. Attached Figure Description

[0019] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0020] In the attached diagram: Figure 1 A diagram showing the usage status of the existing boom assembly tooling; Attached diagram labels: Ⅰ-Stick assembly fixture, Ⅱ-Elevation block, Ⅲ-Elevation block.

[0021] Figure 2 This is a diagram showing the usage state of the bucket arm assembly tooling of this utility model; Figure 3 This is an overall structural diagram of the quick-change tooling for the excavator boom welding pads of this utility model; Figure 4 This is a connection diagram of the base and the flip support block of this utility model (a is a schematic diagram from view one, b is a schematic diagram from view two). Figure 5 This is an exploded view of the base and the flip support block of this utility model; Figure 6 This is an overall structural diagram of the base of this utility model (a is a schematic diagram from view one, b is a schematic diagram from view two). Figure 7 This is an exploded view of the base of this utility model.

[0022] Attached diagram labels: 1-base, 2-bolt, 3-bolt, 4-wing screw, 5-shield block, 6-shield block, 7-shield block, 8-shield block, 9-baffle, 10-tilting support block, 11-stick assembly tooling, 101-base plate, 102-side plate, 103-support plate, 200-excavator stick welding shield block quick-change tooling.

[0023] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0025] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] like Figure 1 As shown, existing shim blocks II and III are bolted to the boom assembly fixture I. Based on the bolt specifications and model, the operator selects appropriate tools such as an Allen wrench to remove and replace shim blocks II and III. New shim blocks II and III of the correct specifications are selected, ensuring correct positioning, and the bolts are tightened with a wrench, completing the replacement of one shim block. The above steps are repeated to complete the replacement of the entire boom assembly fixture I.

[0028] However, the existing method of fixing the shims to the tooling with bolts has the following disadvantages: Disadvantage 1: It relies entirely on manual removal and installation of fixtures. Even with appropriate tools, manual installation and removal of bolts is slow and time-consuming. For tightening multiple bolts, manual operation may further reduce efficiency due to fatigue and other factors. This results in a long changeover cycle, thus affecting production efficiency.

[0029] Disadvantage 2: The disassembled tooling needs to be stored separately and cannot be integrated with the assembly tooling, resulting in wasted space and low utilization of the entire workshop space.

[0030] Disadvantage 3: Because the tooling is stored separately and lacks error-proof labeling or classification guidance systems, staff have to spend a lot of time searching for specific tooling when needed. It may require checking each shelf and area individually, especially when there are many types of tooling, making it difficult to quickly and accurately locate the required tooling.

[0031] Disadvantage 4: It is difficult to accurately track information such as the quantity, inbound and outbound status, and usage status of tooling. This can easily lead to situations where tooling is lost without being detected in time, or damaged tooling is stored as if it were still usable.

[0032] Disadvantage 5: The correct use and storage of tooling largely depend on the operator's personal memory and experience. This requires operators to have a very clear and accurate understanding of the characteristics, usage methods, and storage locations of various tooling components, increasing the demands on their professional skills. New employees often need a considerable amount of time to familiarize themselves with these aspects, during which operational errors are prone to occur, affecting work efficiency and production safety.

[0033] like Figure 2 As shown, this utility model provides a quick-change tooling 200 for excavator boom welding pads. It adopts a quick-flipping structure and is integrated with the boom splicing tooling 11 for storage, which reduces the difficulty of changeover operations and shortens the changeover cycle.

[0034] like Figure 2 , Figure 3 As shown, a quick-change fixture 200 for welding lifting blocks for excavator booms includes a base 1, a tilting support block 10, multiple lifting blocks 5, 6, 7, and 8 of different specifications, and a locking component. The base 1 has a U-shaped structure, including a base plate 101 and a pair of opposing side plates 102. The base plate 101 is mounted on the boom splicing fixture 11 by a detachable fastener. The tilting support block 10 spans across the two side plates 102 and can be tilted on the two side plates 102. Multiple lifting blocks 5, 6, 7, and 8 of different specifications are mounted on the tilting support block 10 by a detachable fastener. The desired lifting block is rotated upwards by the tilting support block 10. The locking component is configured to fix and release the tilting support block 10 from the base 1.

[0035] The above solution significantly reduces the time spent manually installing and removing bolts, shortens changeover cycles, and improves production efficiency. The raised blocks and assembly tooling are integrated into a single storage system, eliminating the need for separate storage and reducing reliance on operators' personal memory and experience, thus ensuring quality stability during mass production.

[0036] The following provides a further explanation of the specific connection method between the aforementioned flip support block and the base.

[0037] like Figure 4 , Figure 5 As shown, each of the two side plates 102 has a groove arranged opposite to each other and extending vertically downward in the middle area of ​​the top surface. A baffle 9 extending vertically upward is fixed at the outer edge of each of the two grooves. The flip support block 10 is engaged in the groove between the two baffles 9 to support the flip support block 10 and multiple shims. When the locking component releases the flip support block 10 from the base 1, the flip support block 10 is lifted up to disengage from the grooves on both sides, so that the flip support block 10 can be flipped.

[0038] Further options, such as Figure 4 , Figure 5 As shown, the locking component is a wing screw 4. Each of the two baffles 9 has a coaxial mounting hole in the middle area. The flip support block 10 has a threaded hole in the middle area of ​​the end face facing the baffle 9. After the wing screw 4 is inserted into the mounting hole, it is tightened in the threaded hole. The fastening and loosening of the flip support block 10 and the base 1 can be achieved by tightening and loosening the wing screw 4.

[0039] Further options, such as Figure 4 , Figure 5 As shown, the mounting hole is an elongated hole extending in the vertical direction, and the length of the elongated hole satisfies the following condition: when the wing screw 4 is loosened and does not need to be removed, the flip support block 10 and the wing screw 4 are lifted up so that the flip support block 10 can disengage from the two grooves.

[0040] By using wing screws and flip-type conversion, tooling can be quickly changed without the need for tools, saving more effort and improving work efficiency.

[0041] The following provides a further explanation of the specific connection method of the aforementioned flip support block and shim block.

[0042] like Figure 3 , Figure 4 , Figure 5 As shown, the flip support block 10 is a square block, and different sizes of shims 5, 6, 7 and 8 are installed on the four sides of the flip support block 10 in the width direction.

[0043] Further options, such as Figure 3 As shown, each of the four sides of the flip support block 10 is provided with a raised block of different height; or, on the four sides of the flip support block 10, a raised block is provided on one side and a raised block is provided on another side, which is composed of at least two raised blocks stacked together.

[0044] Further options, such as Figure 3 , Figure 4 , Figure 5 As shown, the shims 5, 6, 7, and 8 are provided with at least one through hole, and the flip support block 10 is provided with a threaded hole arranged coaxially with the through hole. The bolt 3, which is used as a detachable fastener, is inserted into the through hole and tightened into the threaded hole. The fixing and unfixing between the shims 5, 6, 7, 8 and the flip support block 10 can be achieved by tightening and loosening the bolt 3.

[0045] Further options, such as Figure 3 As shown, shims 5, 6, 7, and 8 are equipped with labels displaying information about the shim. It should be noted that these labels can be nameplates or raised lettering. The shims are equipped with error-proof labels, allowing operators to simply flip the shim when a specific tooling is needed, eliminating the need for lengthy checks of each shelf and area. Even with a wide variety of tooling types, tooling changes can be completed quickly and accurately.

[0046] The following provides a further explanation of the specific connection method of the aforementioned base.

[0047] like Figure 2 , Figure 6 , Figure 7 As shown, the base plate 101 is provided with at least one through hole, and the stick splice fixture 11 is provided with a threaded hole arranged coaxially with the through hole. After the bolt 2, which is used as a detachable fastener, is inserted into the through hole, it is tightened into the threaded hole. The fixing and unfixing between the base 1 and the stick splice fixture 11 can be achieved by tightening and loosening the bolt 2.

[0048] Further options, such as Figure 6 , Figure 7 As shown, at least one support plate 103 is fixed between the top surface of the base plate 101 and the inner surfaces of the two side plates 102 to increase the support strength of the entire base 1.

[0049] Before use, the base 1 is fixed to the boom splice fixture 11 using bolts 2. The flip support block 10 is fixed to the base 1 using wing screws 4. Different sizes of shims 5, 6, 7, and 8 (up to 4 types of shims can be supported simultaneously) are fixed to the flip support block 10 using bolts 3. When using the fixture, loosen the wing screws 4, flip the fixture according to the markings on the side of the shims 5, 6, 7, and 8 to select the appropriate shim, and tighten the wing screws 4 to prevent the shims from shifting, thus enabling quick fixture changeover.

[0050] In summary, this utility model provides a quick-change tooling for excavator boom welding shims, achieving the following functions and effects: (1) It greatly reduces the time spent by workers installing and removing bolts, shortens the changeover cycle, and improves changeover efficiency.

[0051] (2) The raised blocks and the assembly tooling are integrated for storage, eliminating the need for separate storage, reducing space waste and improving workshop space utilization.

[0052] (3) The pad blocks are marked with error prevention signs. When a specific tooling is needed, the operator only needs to flip the pad blocks. There is no need to spend a lot of time checking each shelf and each area. Even when there are many types of tooling, the tooling change can be completed quickly and accurately.

[0053] (4) Accurately grasp information such as the quantity, entry and exit status and usage status of tooling to reduce the occurrence of tooling loss.

[0054] (5) Reduce reliance on operators’ personal memory and experience, ensure quality stability during mass production, and improve product quality.

[0055] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0056] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features found in other embodiments but not others, combinations of features from different embodiments are also within the scope of protection of this invention and form different embodiments. For example, in the embodiments described above, those skilled in the art can use them in combination based on known technical solutions and the technical problems to be solved by this application.

[0057] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A quick changeover tooling for excavator boom welding pads, comprising: a base plate; a plurality of pads attached to the base plate; and a plurality of pins attached to the base plate, wherein the plurality of pads are interchangeable with one another. include: The base has an overall U-shaped structure, including a bottom plate and a pair of opposing side plates. The bottom plate is mounted on the boom assembly tooling by a detachable fastener. The flip support block spans across the two side plates and can be flipped on both side plates; Multiple shims of different sizes are mounted on the flip support block by detachable fasteners. The desired shim is rotated upwards by flipping the support block. The locking component is configured to secure and release the flip support block from the base.

2. The quick changeover tooling for a quick changeover of a welding block for a boom of an excavator according to claim 1, wherein: Each of the two side plates has a groove arranged opposite to each other and extending vertically downward in the middle area of ​​its top surface. A baffle extending vertically upward is fixed at the outer edge of each of the two grooves. The flip support block is engaged in the groove between the two baffles to support the flip support block and the multiple shims. When the locking component releases the locking mechanism from the flip support block and the base, the flip support block is lifted up to disengage from the grooves on both sides, allowing the flip support block to be flipped.

3. The quick changeover tooling for a quick changeover of a welding block for a digging machine stick according to claim 2, wherein: The locking component is a wing screw. Each of the two baffles has a coaxial mounting hole in the middle area. The flip support block has a threaded hole in the middle area of ​​the end face facing the baffle. The wing screw is inserted into the mounting hole and tightened in the threaded hole. The fastening and loosening of the flip support block and the base can be achieved by tightening and loosening the wing screw.

4. The quick changeover tooling for a quick changeover of a welding block for a boom of an excavator according to claim 3, wherein: The mounting hole is an elongated hole extending vertically, and the length of the elongated hole satisfies the following condition: when the wing screw is loosened and does not need to be removed, the flip support block and the wing screw are lifted up so that the flip support block can disengage from the two grooves.

5. The quick-change tooling for excavator boom welding shims according to claim 1, characterized in that: The flip support block is a square block, and different sizes of shims are installed on the four sides of the flip support block in the width direction.

6. The quick changeover tooling for a quick changeover of a welding block for a digging machine stick according to claim 5, wherein: The flipping support block has a raised block of different height on each of its four sides; or, on one side of the flipping support block, a raised block is provided on one part of the four sides, and another part of the sides is composed of at least two raised blocks stacked together.

7. The quick changeover tooling for a quick changeover of a welding block for a boom of an excavator bucket as defined in claim 1, wherein: The raised block has at least one through hole, and the flip support block has a threaded hole arranged coaxially with the through hole. After the bolt, which is used as the detachable fastener, is inserted into the through hole, it is tightened into the threaded hole. The fixing and unfixing between the raised block and the flip support block can be achieved by tightening and loosening the bolt.

8. The quick changeover tooling for a quick changeover of a welding block for a boom of an excavator according to claim 1, wherein: The base plate is provided with at least one through hole, and the stick splicing fixture is provided with a threaded hole arranged coaxially with the through hole. After the bolt, which is used as the detachable fastener, is inserted into the through hole, it is tightened into the threaded hole. The fixing and loosening of the base and the stick splicing fixture can be achieved by tightening and loosening the bolt.

9. The quick changeover tooling for a quick changeover of a welding block for a boom of an excavator bucket as defined in claim 1, wherein: At least one support plate is fixed between the top surface of the base plate and the inner surfaces of the two side plates.

10. The quick changeover tooling for a quick changeover of a welding block for a boom of an excavator bucket, according to claim 1, wherein: The raised block is equipped with an identifier for displaying information about the raised block.

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