Excavator lower frame blade assembly tooling

Abstract

The utility model discloses a tooling for assembling blades of an underframe of an excavator, comprising a tooling platform, a blade positioning mechanism and a flip positioning mechanism, wherein a assembling area is arranged on the tooling platform; the blade positioning mechanism comprises a height positioning member and a limit seat respectively arranged inside and outside the assembling area, wherein the height positioning member is retractable and the limit seat is detachable; the flip positioning mechanism comprises at least two groups of flip positioning assemblies arranged side by side, each group of flip positioning assemblies comprises two flip positioning members arranged on opposite sides, and the flip positioning member comprises a stand and a flip arm. Thus, it can be applied to the assembly of various blade models, thus reducing the number of special toolings, reducing the idle rate, and reducing the manufacturing and maintenance costs.

Description

Technical Field

[0001] The utility model relates to a splicing device, in particular to a splicing tool for a blade of an underframe of an excavator. Background Art

[0002] Currently, common small and medium-sized hydraulic excavators use a lower frame and a blade to level the ground. However, as an optional product, the demand for the blade is limited and the use environment is restricted. Currently, special tooling is mostly used for assembly.

[0003] The assembly points of the blade are mainly concentrated on the assembly points of the ear plate. Due to the various types of blades, and for the same type of blade, different special tooling is required to meet the assembly points requirements of different ear plate positions, which leads to the need for a large number of special tooling to meet production needs. This has some disadvantages: 1. The small output leads to the idleness of special tooling and site occupation; 2. The increase in labor costs caused by multiple operators; 3. The cost increase caused by the investment in special tooling, etc. Utility Model Content

[0004] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0005] To this end, the purpose of the utility model is to propose an excavator underframe blade assembly tooling that can be suitable for the assembly of various blade models, thereby reducing the number of special tooling, reducing the idle rate, and reducing manufacturing and maintenance costs.

[0006] In order to achieve the above-mentioned purpose, the utility model proposes a tooling for splicing blades of an excavator underframe, comprising a tooling platform, a blade positioning mechanism and a flip positioning mechanism, wherein a splicing area is provided on the tooling platform; the blade positioning mechanism comprises a height positioning member and a limit seat respectively arranged inside and outside the splicing area, wherein the height positioning member is retractable and the limit seat is removable; the flip positioning mechanism comprises at least two groups of flip positioning assemblies arranged side by side, each group of the flip positioning assemblies comprises two flip positioning members arranged on opposite sides, the flip positioning member comprises a stand and a flip arm, wherein the stand is removable and arranged on one side of the splicing area; the flip arm is removable and one end of the flip arm is rotatably connected to the stand, and the other end of the flip arm is provided with a positioning portion for limiting the ear plate.

[0007] In addition, the excavator lower frame blade assembly tooling proposed in the application may also have the following additional technical features:

[0008] Specifically, the stand includes a first pin shaft and a second pin shaft, wherein the first pin shaft is removable and passes through a first positioning hole seat setting on the stand, the second pin shaft is removable and passes through a second positioning hole seat setting on the stand, the flip arm is rotatably connected to the stand through the first pin shaft, and the flip arm is provided with a second mounting hole for the second pin shaft to pass through.

[0009] Specifically, the positioning portion includes a third pin shaft, and the third pin shaft is detachable and is arranged to pass through the first mounting hole on the positioning portion.

[0010] Specifically, it also includes an auxiliary positioning piece, which includes a clamping plate and a screw, wherein a clamping cavity for clamping the ear plate and the positioning part is formed on one side of the clamping plate, and a stop block and a threaded sleeve are respectively provided on opposite sides of the clamping cavity, and one end of the screw passes through the threaded sleeve.

[0011] Specifically, the height positioning member includes at least two positioning blocks arranged opposite to each other.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. The use of universal assembly tooling can reduce the idle rate and reduce manufacturing and maintenance costs;

[0014] 2. Multiple flip positioning components are set up, which can be used as needed for ear plates in different positions, thereby avoiding mutual interference positioning between flip positioning parts, so as to meet the universal assembly points of multiple blade models;

[0015] 3. In view of the differences between different types of scraper blades, retractable height positioning parts and detachable limit seats are used to ensure the versatility of the assembly tooling.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0018] Figure 1 This is a schematic diagram of the structure of the blade assembly tooling for the lower frame of an excavator according to one embodiment of the utility model;

[0019] Figure 2 This is a diagram of the use state of the excavator lower frame blade assembly tooling according to one embodiment of the utility model;

[0020] Figure 3This is a structural schematic diagram of an auxiliary positioning member of a blade joint tooling for an excavator lower frame according to an embodiment of the utility model;

[0021] Figure 4 The present invention is a schematic diagram of the structure of the blade assembly tooling for the lower frame of an excavator according to another embodiment of the present invention.

[0022] As shown in the figure: 10, tooling platform; 11, assembly area; 12, first positioning hole seat; 121, first pin shaft; 13, second positioning hole seat; 131, second pin shaft; 20, positioning block; 30, limit seat; 40, flip positioning piece; 41, stand seat; 42, flip arm; 421, positioning part; 422, first mounting hole; 423, second mounting hole; 424, third pin shaft; 50, auxiliary positioning piece; 51, splint; 511, clamping cavity; 512, stop block; 513, threaded sleeve; 52, screw. DETAILED DESCRIPTION

[0023] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limitations on the present invention. On the contrary, the embodiments of the present invention include all changes, modifications, and equivalents that fall within the spirit and connotation of the appended claims.

[0024] The following describes the blade assembly tool for the lower frame of an excavator according to an embodiment of the utility model in conjunction with the accompanying drawings.

[0025] like Figure 1-Figure 4 As shown, the excavator lower frame blade assembly tooling of the embodiment of the utility model may include a tooling platform 10, a blade positioning mechanism and a flip positioning mechanism.

[0026] Among them, a splicing area 11 is provided on the tooling platform 10, and the blade positioning mechanism may include a height positioning member and a limit seat 30 respectively arranged inside and outside the splicing area 11, wherein the height positioning member is retractable and the limit seat 30 is detachable.

[0027] It should be noted that the splicing area 11 described in this embodiment is used to place a shovel. After the blade is placed, the side of the blade connected to the lower frame of the excavator is set upward, and the other side of the blade is facing downward. Since the downward side of the blade is usually in an arc shape of different heights in order to level the ground, the height positioning piece described in this embodiment can be telescopically adjusted to a suitable position according to the shape differences of the bottom surfaces of different blades to fit the bottom surface of the blade, thereby achieving stable support for the blade and ensuring the versatility of the splicing tooling.

[0028] It is understandable that, for different types of scrapers, relevant personnel can adjust the position of the limit seat 30 so that the limit seat 30 can limit the scraper and ensure the versatility of the splicing tooling.

[0029] The flip positioning mechanism may include at least two groups of flip positioning components arranged side by side, and each group of flip positioning components may include two flip positioning members 40 arranged on opposite sides. It can be understood that they can be used as needed for ear plates in different positions, thereby avoiding mutual interference positioning between the flip positioning members 40, thereby being able to meet the universal assembly points of multiple blade models.

[0030] The flip positioning member 40 may include a stand 41 and a flip arm 42, wherein the stand 41 is detachable and is arranged on one side of the puzzle area 11, the flip arm 42 is detachable and one end of which is rotatably connected to the stand 41, and the other end of the flip arm 42 is provided with a positioning portion 421 for limiting the ear plate.

[0031] It should be noted that, for ear plate splicing points at different positions, the flip arm 42 described in this embodiment can be used as needed. The required flip arm 42 is flipped to the side of the splicing area 11, and then the positioning part 421 on the flip arm 42 can be used to limit the ear plate, thereby avoiding mutual interference positioning between the flip positioning parts 40, thereby being able to meet the universal splicing needs of multiple blade models.

[0032] Specifically, in the actual process of performing ear plate splicing operation on the shovel blade, the relevant personnel first places the shovel blade in the splicing area 11, and makes the top surface of the shovel blade the side that is spliced ​​with the ear plate. During the placement of the shovel blade, the shovel blade is supported and limited by the retractable height positioning member and the detachable limit seat 30.

[0033] After the blade is placed, the relevant personnel place the ear plate at the designated position on the top surface of the blade, and then rotate the corresponding flip arms 42 on both sides of the ear plate to the joining point area 11, and use the positioning part 421 to limit the ear plate.

[0034] After the ear plate is placed, relevant personnel can assemble the ear plate and the shovel blade.

[0035] In one embodiment of the present invention, Figure 1 As shown, the stand 41 may include a first pin shaft 121 and a second pin shaft 131, wherein the first pin shaft 121 is removable and passes through a first positioning hole seat 12 on the stand 41, the second pin shaft 131 is removable and passes through a second positioning hole seat 13 on the stand 41, the flip arm 42 is rotatably connected to the stand 41 through the first pin shaft 121, and a second mounting hole 423 for the second pin shaft 131 to pass through is provided on the flip arm 42.

[0036] Specifically, the flip arm 42 flips to the outside of the splicing area 11 when not in use. At this time, the flip arm 42 is only installed on the first positioning hole seat 12 through the first pin shaft 121; when the flip arm 42 is in use, it flips to the splicing area 11, and the flip arm 42 can be positioned at the second positioning hole seat 13 through the second mounting hole 423 of the flip arm 42. At this time, the position of the flip arm 42 is fixed, so that the ear plate can be stably limited.

[0037] Furthermore, if Figure 1-Figure 2 As shown, the positioning portion 421 may include a third pin shaft 424 , which is detachable and is disposed through the first mounting hole 422 on the positioning portion 421 .

[0038] It should be noted that the blade is usually joined with multiple ear plates, and multiple ear plates on the same blade are all provided with perforations, and the third pin 424 described in this embodiment is arranged in cooperation with the perforations. When the ear plates are placed, the positioning portion 421 described in this embodiment can be slidably located between adjacent ear plates.

[0039] Specifically, after the position of the flip arm 42 is fixed, relevant personnel can use the positioning part 421 to position the ear plate. First, slide the positioning part 421 to the inner side of the adjacent ear plate, and then use the pin shaft to pass through the through hole on the adjacent ear plate and the first mounting hole 422 on the positioning part 421 to limit the ear plate.

[0040] Furthermore, if Figure 3 As shown, the above-mentioned excavator lower frame blade assembly tooling may also include: an auxiliary positioning member 50, the auxiliary positioning member 50 may include a clamping plate 51 and a screw 52, ​​wherein a clamping cavity 511 for clamping the ear plate and the positioning portion 421 is formed on one side of the clamping plate 51, and a stop block 512 and a threaded sleeve 513 are respectively provided on opposite sides of the clamping cavity 511, and one end of the screw 52 is arranged through the threaded sleeve 513.

[0041] It is understandable that after the relevant personnel use the flip positioning mechanism to position the ear plate, they can additionally use the auxiliary positioning member 50 to reinforce the ear plate.

[0042] Specifically, after the positioning portion 421 limits the adjacent ear plates through the third pin shaft 424, the relevant personnel hold the clamping plate 51 and make the clamping cavity 511 cover the outer side of the positioning portion 421 and the adjacent ear plates, so that the stop block 512 is against one side of the positioning portion 421 and the adjacent ear plates as a whole, and then rotate the screw rod 52 so that one end of the screw rod 52 is against the other side of the positioning portion 421 and the adjacent ear plates as a whole, so that the connection between the positioning portion 421 and the adjacent ear plates as a whole can be further strengthened.

[0043] In one embodiment of the present invention, Figure 1As shown, the height positioning member may include at least two positioning blocks 20 disposed opposite to each other. It can be understood that this helps the height positioning member to stably support the blade.

[0044] In summary, the excavator lower frame blade assembly tooling of the utility model embodiment can be applied to the assembly of various blade models, which can reduce the number of special tooling, reduce the idle rate, and reduce the manufacturing and maintenance costs.

[0045] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0046] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the 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 any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0047] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present invention.

Claims

1. A tooling for assembling blades on the lower frame of an excavator, characterized in that: It includes a tooling platform, a blade positioning mechanism and a flip positioning mechanism, wherein: The tooling platform is provided with a point-matching area; The blade positioning mechanism comprises a height positioning member and a limit seat respectively arranged inside and outside the joint point area, wherein the height positioning member is retractable and the limit seat is detachable; The flip positioning mechanism comprises at least two groups of flip positioning components arranged side by side, each group of the flip positioning components comprises two flip positioning members arranged on opposite sides, and the flip positioning members comprise a stand and a flip arm, wherein: The stand is detachable and is arranged on one side of the point-matching area; The flip arm is detachable and one end of the flip arm is rotatably connected to the stand. The other end of the flip arm is provided with a positioning portion for limiting the ear plate.

2. The excavator lower frame blade assembly tool according to claim 1, characterized in that: The stand includes a first pin and a second pin, wherein the first pin is removable and passes through a first positioning hole seat on the stand, the second pin is removable and passes through a second positioning hole seat on the stand, the flip arm is rotatably connected to the stand through the first pin, and a second mounting hole for the second pin to pass through is provided on the flip arm.

3. The excavator lower frame blade assembly tool according to claim 2, characterized in that: The positioning portion includes a third pin shaft, and the third pin shaft is detachable and is arranged through the first mounting hole on the positioning portion.

4. The excavator lower frame blade assembly tool according to claim 3, characterized in that: It also includes an auxiliary positioning piece, which includes a clamping plate and a screw, wherein a clamping cavity for clamping the ear plate and the positioning part is formed on one side of the clamping plate, and a stop block and a threaded sleeve are respectively provided on opposite sides of the clamping cavity, and one end of the screw passes through the threaded sleeve.

5. The excavator lower frame blade assembly tool according to claim 1, characterized in that: The height positioning member includes at least two positioning blocks arranged opposite to each other.

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