Bushing positioning tool for digging arm

Abstract

The utility model discloses a shaft sleeve positioning tool for an excavating arm, comprising a frame and an excavating arm arranged on the frame, a positioning device is arranged between the frame and the excavating arm, the positioning device comprises a panel and a first positioning component and a second positioning component respectively arranged at two ends of the panel, the panel abuts against one side of the excavating arm, and the shaft sleeves arranged on the frame and the excavating arm are synchronously positioned by the first positioning component and the second positioning component, and the tool can be used to synchronously position multiple shaft sleeves on the excavating arm, ensure that the outer wall of each shaft sleeve has a consistent gap relative to the excavating arm, and improve the accuracy of the excavating arm when assembling the oil cylinder and the smoothness of use.

Description

Technical Field

[0001] The utility model relates to the application field of agricultural machinery processing technology, in particular to a shaft sleeve positioning tool for a digging arm. Background Art

[0002] In the construction machinery manufacturing industry, when carrying out mass production, product parts are required to have high consistency, so the assembly and positioning work before the parts are welded is very important.

[0003] The number and position of the bushings in the excavator are determined according to the model of the digging arm. Basically, there are multiple sets of bushings on the digging arm. There are interrelated functions between the multiple sets of bushings. Therefore, if there is an error in the bushing assembly process, the error between the multiple sets of bushings will be magnified.

[0004] During welding, if the verticality between the shaft sleeve and the side plate cannot be well controlled, the finished welded product is prone to tilt and become unqualified. Similarly, the oil cylinder cannot be accurately assembled later and will not be smooth during use.

[0005] Therefore, based on the above-mentioned technical problems, there is an urgent need to provide a sleeve positioning tool for an excavating arm. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a sleeve positioning tool for an excavating arm. The tool can synchronously position multiple sleeves on the excavating arm to ensure that the gap between the outer wall of each sleeve relative to the excavating arm is consistent, thereby improving the accuracy of the excavating arm when assembling the cylinder and the smoothness of use.

[0007] The technical solution of the utility model is: a sleeve positioning tool for an excavating arm, comprising a frame and an excavating arm arranged on the frame, a positioning device is provided between the frame and the excavating arm, the positioning device comprises a panel and a first positioning component and a second positioning component respectively arranged at both ends of the panel, the panel abuts against one side of the excavating arm, and the sleeves arranged on the frame and the excavating arm are synchronously positioned by the first positioning component and the second positioning component.

[0008] Furthermore, a plurality of groups of limit blocks are provided at one end of the panel close to the digging arm, and the panel is abutted against the digging arm through the limit blocks.

[0009] Furthermore, the sleeves are provided in four groups and include a first sleeve and a second sleeve provided on the digging arm, and a third sleeve and a fourth sleeve provided on the frame. The first sleeve and the second sleeve are provided along the length direction of the digging arm, and the third sleeve and the fourth sleeve are provided opposite to each other.

[0010] Furthermore, the first positioning assembly is disposed at the upper end of the panel and fixes the third shaft sleeve and the fourth shaft sleeve disposed on the frame;

[0011] The second positioning assembly is disposed at the bottom of the panel and fixes the first sleeve and the second sleeve disposed on the digging arm.

[0012] Furthermore, the first positioning assembly includes a first positioning block and a first positioning pin fixed to the panel, the end of the first positioning block is provided with an opening for inserting the end of the frame, and the first positioning pin passes through the first positioning block and the frame to fix the third sleeve and the fourth sleeve.

[0013] Furthermore, it also includes a limiting sleeve used in conjunction with the first positioning pin and located between the third sleeve and the fourth sleeve, and the side wall of the limiting sleeve is provided with an opening for the first positioning pin to pass through.

[0014] Furthermore, the second positioning assembly includes a second positioning block, a second positioning pin and a third positioning pin fixed to the panel, the end of the second positioning block is provided with an opening for inserting the digging arm, the second positioning pin and the third positioning pin respectively pass through the second positioning block and the digging arm to fix the first sleeve and the second sleeve.

[0015] Furthermore, the second positioning pins and the third positioning pins are each provided with two groups, and the two groups of the positioning pins or the third positioning pins are relatively arranged on the second positioning block.

[0016] The beneficial technical effects of the utility model are:

[0017] The panel is abutted against one side of the digging arm through a limit block, ensuring that the first positioning assembly and the second positioning assembly are arranged in relative parallel. When the first positioning assembly cooperates with the frame and the second positioning assembly cooperates with the digging arm, the first sleeve, the second sleeve, the third sleeve and the fourth sleeve are ensured to be positioned synchronously, thereby ensuring that the gaps existing during the assembly process of the first sleeve, the second sleeve, the third sleeve and the fourth sleeve are the same. When the oil cylinder is assembled on the digging arm, it can be more precise and smoother in use without any abnormal situation of incoordination.

[0018] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the positioning device of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure in which the shaft sleeve of the utility model is located inside the digging arm.

[0022] The accompanying drawings are marked as follows:

[0023] 100, frame; 110, third sleeve; 120, fourth sleeve; 200, digging arm; 210, second sleeve; 220, first sleeve; 300, positioning device; 310, panel; 311, limit block; 320, first positioning assembly; 321, first positioning block; 322, first positioning pin; 323, limit sleeve; 330, second positioning assembly; 331, second positioning block; 332, second positioning pin; 333, third positioning pin. DETAILED DESCRIPTION

[0024] In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the specific implementation methods of the utility model are further described in detail below in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the utility model but are not used to limit the scope of the utility model.

[0025] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so as to describe the embodiments of the present application described herein.

[0026] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships recorded in the embodiments and shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0027] like Figure 1-Figure 3 As shown, the utility model specifically relates to a sleeve positioning tool for an excavating arm, comprising a frame 100 and an excavating arm 200 arranged on the frame 100, a positioning device 300 is provided between the frame 100 and the excavating arm 200, the positioning device 300 comprises a panel 310 and a first positioning assembly 320 and a second positioning assembly 330 respectively arranged at both ends of the panel 310, the panel 310 abuts against one side of the excavating arm 200, and the sleeves arranged on the frame 100 and the excavating arm 200 are synchronously positioned by the first positioning assembly 320 and the second positioning assembly 330.

[0028] It should be noted that the frame 100 and the digging arm 200 are both already welded. In order to assemble other components such as the oil cylinder at a later stage, the sleeves on the frame 100 and the digging arm 200 need to be welded on. During the welding process, the fit and error values ​​between the multiple sleeves need to be considered. Therefore, the first positioning assembly 320 and the second positioning assembly 330 are required to position the sleeves on the frame 100 and the digging arm 200 to ensure that the gaps between the multiple sleeves during the assembly process are the same and the error values ​​are minimized.

[0029] When the panel 310 abuts against one side of the digging arm 200, the panel 310 fits with the digging arm 200 and remains relatively horizontal. At this time, the first positioning assembly 320 can cooperate with the frame 100 to position the shaft sleeve provided on the frame 100; the second positioning assembly 330 can cooperate with the digging arm 200 to position the shaft sleeve provided on the digging arm 200. Since the first positioning assembly 320 and the second positioning assembly 330 are respectively provided at both ends of the panel 310, when the panel 310 is relatively horizontal, the shaft sleeves respectively provided on the frame 100 and the digging arm 200 can be synchronously positioned through the first positioning assembly 320 and the second positioning assembly 330, so as to reduce the errors existing in the assembly process of multiple shaft sleeves, so that the subsequent assembly of other components can be more accurate and the use is smoother.

[0030] Furthermore, a plurality of limit blocks 311 are provided at one end of the panel 310 close to the digging arm 200 , and the panel 310 abuts against the digging arm 200 via the limit blocks 311 .

[0031] Among them, the setting of multiple groups of limit blocks 311 is also to ensure the relative level of the panel 310. Similarly, when there is a protrusion on the surface of the digging arm 200, the limit blocks 311 are circumferentially abutted against the digging arm 200 to ensure the relative level of the panel 310.

[0032] In addition, since there is a height difference between the position where the shaft sleeve is set on the frame 100 and the position where the shaft sleeve is set on the digging arm 200, the height difference can be compensated by setting the limit block 311.

[0033] Furthermore, by setting the limit block 311, it can be ensured that the position of the panel 310 will not be tilted, and it can only move linearly along the length direction of the digging arm 200 to adjust the position of the first positioning assembly 320 relative to the frame 100, or the position of the second positioning assembly 330 relative to the digging arm 200.

[0034] The sleeves are provided in four groups and include a first sleeve 220 and a second sleeve 210 provided on the digging arm 200, and a third sleeve 110 and a fourth sleeve 120 provided on the frame 100. The first sleeve 220 and the second sleeve 210 are provided along the length direction of the digging arm 200, and the third sleeve 110 and the fourth sleeve 120 are provided opposite to each other.

[0035] Among them, the number and position setting of the sleeves are determined according to the model of the excavating arm. Basically, there are multiple sets of sleeves on the excavating arm. There are interrelated functions between the multiple sets of sleeves. Therefore, if there are errors in the assembly process of the sleeves, the errors between the multiple sets of sleeves will be magnified. Therefore, it is necessary to reduce the errors of the multiple sets of sleeves through the first positioning component 320 and the second positioning component 330.

[0036] The first positioning assembly 320 is disposed at the upper end of the panel 310 and fixes the third sleeve 110 and the fourth sleeve 120 disposed on the frame 100;

[0037] The second positioning assembly 330 is disposed at the bottom of the panel 310 and fixes the first sleeve 220 and the second sleeve 210 disposed on the digging arm 200 .

[0038] The first positioning assembly 320 includes a first positioning block 321 and a first positioning pin 322 fixed to the panel 310. The end of the first positioning block 321 is provided with an opening for inserting the end of the frame 100. The first positioning pin 322 passes through the first positioning block 321 and the frame 100 to fix the third sleeve 110 and the fourth sleeve 120.

[0039] Among them, the first positioning block 321 is also provided with a first positioning hole for the first positioning pin 322 to pass through. When one end of the frame 100 is inserted into the opening of the first positioning block 321, the first positioning pin 322 passes through the first positioning hole, the frame 100 and the third sleeve 110 and the fourth sleeve 120 provided on the frame 100 to connect the frame 100 and the panel 310.

[0040] The first positioning pin 322 ensures the assembly error between the third sleeve 110 and the fourth sleeve 120 .

[0041] The invention further comprises a limiting sleeve 323 used in conjunction with the first positioning pin 322 and located between the third sleeve 110 and the fourth sleeve 120 , and a side wall of the limiting sleeve 323 is provided with an opening for the first positioning pin 322 to pass through.

[0042] The limiting sleeve 323 is sleeved on the surface of the first positioning pin 322 , and the third sleeve 110 and the fourth sleeve 120 are separated by the limiting sleeve 323 , so as to further ensure the relative gap between the third sleeve 110 and the fourth sleeve 120 .

[0043] The second positioning assembly 330 includes a second positioning block 331, a second positioning pin 332 and a third positioning pin 333 fixed to the panel 310. The end of the second positioning block 331 is provided with an opening for inserting the digging arm 200. The second positioning pin 332 and the third positioning pin 333 respectively pass through the second positioning block 331 and the digging arm 200 to fix the first sleeve 220 and the second sleeve 210.

[0044] Among them, the second positioning block 331 is respectively provided with a second positioning hole and a third positioning hole for the second positioning pin 332 and the third positioning pin 333 to pass through. The usage method and principle of the second positioning component 330 are the same as those of the first positioning component 320, but there are certain differences in structure. Therefore, the specific principle will not be described in detail.

[0045] The second positioning pins 332 and the third positioning pins 333 are each provided with two groups, and the two groups of positioning pins or the third positioning pins 333 are arranged opposite to the second positioning block 331 .

[0046] The two groups of second positioning pins 332 are provided to ensure that the relative gaps at both ends of the first sleeve 220 are the same during assembly. Similarly, the two groups of third positioning pins 333 are provided for the same purpose.

[0047] In summary, the use of the above-mentioned panel 310, the limit block 311, the first positioning assembly 320 and the second positioning assembly 330 can ensure that the axes of the multiple sleeves are parallel, thereby reducing the error in the assembly process of the multiple sets of sleeves.

[0048] The above embodiments are only specific implementation methods of the present invention, which are used to illustrate the technical solution of the present invention rather than to limit it. The protection scope of the present invention is not limited thereto. Although the present invention is described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that any technician familiar with the technical field can still modify the technical solution recorded in the aforementioned embodiments within the technical scope disclosed by the present invention, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solution deviate from the spirit and scope of the technical solution of the embodiment of the present invention, and should all be covered within the protection scope of the present invention.

Claims

1. A sleeve positioning tool for an excavating arm, characterized in that: The invention comprises a frame (100) and a digging arm (200) arranged on the frame (100); a positioning device (300) is arranged between the frame (100) and the digging arm (200); the positioning device (300) comprises a panel (310) and a first positioning assembly (320) and a second positioning assembly (330) respectively arranged at two ends of the panel (310); the panel (310) abuts against one side of the digging arm (200), and the first positioning assembly (320) and the second positioning assembly (330) are used to synchronously position shaft sleeves arranged on the frame (100) and the digging arm (200).

2. The sleeve positioning tool for the excavating arm according to claim 1, characterized in that: A plurality of groups of limit blocks (311) are provided at one end of the panel (310) close to the digging arm (200), and the panel (310) abuts against the digging arm (200) via the limit blocks (311).

3. The sleeve positioning tool for the excavating arm according to claim 1, characterized in that: The shaft sleeves are provided in four groups and include a first shaft sleeve (220) and a second shaft sleeve (210) provided on the digging arm (200), and a third shaft sleeve (110) and a fourth shaft sleeve (120) provided on the frame (100); the first shaft sleeve (220) and the second shaft sleeve (210) are provided along the length direction of the digging arm (200), and the third shaft sleeve (110) and the fourth shaft sleeve (120) are provided opposite to each other.

4. The shaft sleeve positioning tool for the excavating arm according to claim 3, characterized in that: The first positioning assembly (320) is disposed at the upper end of the panel (310) and fixes the third shaft sleeve (110) and the fourth shaft sleeve (120) disposed on the frame (100); The second positioning assembly (330) is disposed at the bottom of the panel (310) and fixes the first shaft sleeve (220) and the second shaft sleeve (210) disposed on the digging arm (200).

5. The shaft sleeve positioning tool for the excavating arm according to claim 4, characterized in that: The first positioning assembly (320) comprises a first positioning block (321) and a first positioning pin (322) fixed to the panel (310); an end of the first positioning block (321) is provided with an opening for inserting an end of the frame (100); the first positioning pin (322) passes through the first positioning block (321) and the frame (100) to fix the third shaft sleeve (110) and the fourth shaft sleeve (120).

6. The shaft sleeve positioning tool for the excavating arm according to claim 5, characterized in that: It also includes a limiting sleeve (323) used in conjunction with the first positioning pin (322) and located between the third sleeve (110) and the fourth sleeve (120), and a side wall of the limiting sleeve (323) is provided with an opening for the first positioning pin (322) to pass through.

7. The shaft sleeve positioning tool for the excavating arm according to claim 4, characterized in that: The second positioning assembly (330) comprises a second positioning block (331), a second positioning pin (332) and a third positioning pin (333) fixed to the panel (310); an end of the second positioning block (331) is provided with an opening for inserting the digging arm (200); the second positioning pin (332) and the third positioning pin (333) respectively pass through the second positioning block (331) and the digging arm (200) to fix the first sleeve (220) and the second sleeve (210).

8. The shaft sleeve positioning tool for the excavating arm according to claim 7, characterized in that: The second positioning pins (332) and the third positioning pins (333) are each provided in two groups, and the two groups of positioning pins or the third positioning pins (333) are arranged opposite to the second positioning block (331).

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