Crawler belt first section coaxiality opening dimension testing fixture

Abstract

The utility model provides a track first section coaxiality opening dimension testing fixture, which comprises a first testing fixture, a second testing fixture and a third testing fixture which are sequentially connected, and is characterized in that the boundary dimension of the first testing fixture is matched with the dimension of a track section groove of a standard track first section chain link; the length of the second testing fixture is matched with the size of an outer opening of a first chain link of a standard track; and the diameter of the third testing fixture is matched with the inner diameter of the pin hole of the first chain link of the standard track. The detection tool can rapidly detect the coaxiality of the first section of the track and the external opening size of the first section of the track, improves the product quality, enables the fastening to be successful in the assembly of the track of a customer, and is simple and novel in structural design, convenient to manufacture and flexible to use.

Description

Technical Field

[0001] The utility model relates to a crawler quality inspection auxiliary tool, in particular to a crawler first section coaxiality opening size inspection tool. Background Art

[0002] The track rails are always assembled by connecting the left and right track links through the shaft sleeve. The track ends are buckled and fixed with T-pins to ensure product quality. During the assembly process, it is necessary to control the coaxiality of the pin holes on the left and right sections of the first section of the track, the inner and outer opening dimensions of the first section, and the width of the T-slot of the first section. Conventional inspection with calipers is time-consuming and labor-intensive, reducing efficiency. A coaxiality opening dimension inspection fixture for the first section is made to check the required controlled dimensions at one time, reducing the number of inspections by workers and ensuring product quality. Utility Model Content

[0003] The technical problem to be solved by the utility model is: in view of the defects of the prior art, a crawler first section coaxiality opening size inspection tool is provided which can quickly inspect the dimensions of the first section of a crawler product.

[0004] The utility model adopts the following technical solutions to solve the above technical problems:

[0005] A track first section coaxiality gap size gauge, comprising a first gauge, a second gauge and a third gauge connected in sequence, wherein: the outer dimensions of the first gauge match the track slot dimensions of the standard track first section chain link; the length of the second gauge matches the outer gap dimension of the standard track first section chain link; and the diameter of the third gauge matches the inner diameter dimension of the pin hole of the standard track first section chain link.

[0006] Preferably, the cross section of the first gauge is a rectangular structure with arc-shaped ends, and the cross sections of the second gauge and the third gauge are circular.

[0007] Preferably, the length of the first gauge is 1 / 3 to 2 / 3 of the length of the second gauge; the length of the third gauge is 1 / 10 to 2 / 10 of the length of the second gauge.

[0008] Preferably, a stepped groove is formed on the front end of the third gauge and the outer peripheral body connected to the second gauge.

[0009] Preferably, the diameter of the third gauge is greater than or equal to the diameter of the second gauge.

[0010] Preferably, the outer dimensions of the first gauge are 0.10-0.15 mm smaller than the track slot dimensions of the first link of the standard crawler track.

[0011] Preferably, the length of the second gauge is equal to the outer gap size of the first link of the standard crawler track.

[0012] Preferably, the diameter of the third gauge is 0.05-0.10 mm smaller than the inner diameter of the pin hole of the first link of the standard crawler track.

[0013] Preferably, the first gauge, the second gauge, the filter section and the third gauge are coaxially arranged and integrally formed.

[0014] Preferably, the first gauge, the second gauge, the filter section and the third gauge are made of stainless steel or aluminum alloy.

[0015] The utility model adopts the above technical solution, and compared with the prior art, has the following technical effects:

[0016] The utility model provides a first section coaxiality opening size inspection tool for crawlers, which adopts a first inspection tool, a second inspection tool and a third inspection tool of an integrated structure. Through the inspection of the first inspection tool, it can be effectively guaranteed that the first section slot is qualified and the T-pin is 100% slotted; through the inspection of the second inspection tool, it can be effectively guaranteed that the outer opening size is qualified, and when the customer inserts the T-pin, it can be guaranteed that the cotter pin is 100% loaded; through the inspection of the three inspection tools, it can be effectively guaranteed that the coaxiality of the first section is qualified, and when the customer's crawler is buckled, the T-pin is easy to press in without cutting the meat, thereby ensuring the quality of the product; in summary, the inspection tool can be used to quickly check the coaxiality of the first section of the crawler and the outer opening size of the first section of the crawler, improve product quality, and enable the customer's crawler to buckle successfully during assembly, and its structural design is simple and novel, and it is easy to make and flexible to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main structure of the first track link assembly of the crawler;

[0018] Figure 2 It is a schematic diagram of the top view of the structure of the first track link assembly of the crawler;

[0019] Figure 3 It is a three-dimensional structural schematic diagram of a crawler first section coaxiality opening size inspection tool of the utility model;

[0020] Figure 4 It is a left-side structural schematic diagram of a crawler first section coaxiality opening size inspection fixture of the utility model;

[0021] Figure 5 It is a schematic diagram of the top view of the structure of a coaxial opening size inspection tool for the first section of a crawler track according to the utility model;

[0022] Figure 6 The utility model is a structural schematic diagram of a crawler first section coaxiality opening size inspection tool for inspecting the crawler first section. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0025] Figure 1 and Figure 2 There are two dimensions B and C and one shape and position dimension A that need to be inspected and controlled for the first section of the company's crawler products. Among them, dimension C is the diameter of the chain link pin hole. When the customer's crawler is buckled, the T-pin can be easily pressed into the pin holes of each chain link without cutting the meat, and the coaxiality of the first section is qualified; dimension B is the size of the outer opening of the first section. When the customer inserts the T-pin, the cotter pin is 100% loaded to be qualified; shape and position dimension A is the shape size of the slot of the first section. When the customer inserts the T-pin, the T-pin is 100% slotted to be qualified.

[0026] In some embodiments, in order to quickly check whether the coaxiality of the first section of the company's crawler products and the outer opening size of the first section of the crawler are qualified, such as Figure 3 As shown, a track first section coaxial opening size gauge is provided, comprising a first gauge 1, a second gauge 2 and a third gauge 3 connected in sequence, wherein the first gauge 1, the second gauge 2 and the third gauge 3 are coaxially arranged, made of stainless steel or aluminum alloy, and integrally processed.

[0027] Specifically, Figure 4 and Figure 5 As shown, the outer dimension A1 of the first inspection fixture 1 matches the track slot dimension A of the first link of the standard crawler track, and is used to check whether the track slot dimension of the first link of the crawler product is qualified. The length B1 of the second inspection fixture 2 matches the outer gap dimension B of the first link of the standard crawler track, and is used to check whether the outer gap dimension of the first link of the crawler product is qualified. And the diameter C1 of the third inspection fixture 3 matches the inner diameter dimension C of the pin hole of the first link of the standard crawler track, and is used to check whether the pin hole and coaxiality of the first link of the crawler product are qualified.

[0028] Specifically, Figure 3 , Figure 4 and Figure 5 As shown, consistent with the coaxiality of the pin hole of the first section of the crawler product, the rail groove and the outer opening shape of the first section of the crawler, the cross-section of the first gauge 1 is a rectangular structure with arc-shaped ends, and the cross-sections of the second gauge 2 and the third gauge 3 are circular.

[0029] And in accordance with the coaxiality of the pin hole of the first section of the crawler product, the rail groove and the outer opening size of the first section of the crawler, the length of the first gauge 1 is 1 / 3 to 2 / 3 of the length B1 of the second gauge 2, so that the first gauge 1 can be completely inserted into the rail groove of the first section of the crawler and is convenient for hand-held operation; the length of the third gauge 3 should not be too long, and its length is preferably 1 / 10 to 2 / 10 of the length B1 of the second gauge 2, and it passes through the pin holes of the first section of the crawler to detect the coaxiality of the pin holes.

[0030] In order to facilitate real-time observation of the inspection of the first track section by the second inspection fixture 2, a stepped groove 4 is provided on the outer peripheral body connected to the front end of the third inspection fixture 3 and the second inspection fixture 2, so that when the T-pin is inserted, it can be observed from the outside whether the second inspection fixture 2 is fully installed.

[0031] In addition, the diameter of the third gauge 3 is greater than or equal to the diameter of the second gauge 2. Preferably, the diameter of the third gauge 3 is equal to the diameter of the second gauge 2. In order to fully insert the third gauge 3 and the second gauge 2 when checking the coaxiality and the outer opening size of the first crawler section.

[0032] In some of the embodiments, Figure 4 and Figure 5 As shown, in order to ensure the accuracy of the inspection of the coaxiality opening size of the first section of the crawler, certain restrictions are imposed on the sizes of the first gauge 1, the second gauge 2 and the third gauge 3.

[0033] Specifically, the outer dimension A1 of the first gauge 1 is 0.10-0.15 mm smaller than the track slot dimension A of the first link of the standard crawler track. The length B1 of the second gauge 2 is equal to the outer gap dimension B of the first link of the standard crawler track. The diameter C1 of the third gauge 3 is 0.05-0.10 mm smaller than the inner diameter dimension C of the pin hole of the first link of the standard crawler track.

[0034] The working principle of the track first section coaxiality opening size inspection fixture is:

[0035] like Figure 6 As shown, insert the coaxial opening size gauge of the first track section into the link pin hole of the first track section from one side, and observe the insertion of the first gauge 1, the second gauge 2, and the third gauge 3. The dimension A1 of the first gauge 1 controls the dimension A of the first track section slot, and the fixture cannot fall into the slot, and the first section slot is either milled off or milled small; the dimension B1 of the second gauge 2 controls the outer opening dimension B of the first section. The gauge is inserted into the pin hole of the first section, and it is just flush, or the excess does not exceed 0.5mm. The dimension is qualified, and it is unqualified if it does not leak out or leaks too much. The dimension C of the third gauge 3 is controlled to be 0.05-0.1mm smaller than the pin hole of the first chain section. The gauge can smoothly pass through the left and right chain link pin holes of the first section to be qualified, otherwise it is unqualified.

[0036] In summary, the track first section coaxiality opening size inspection fixture can quickly check the coaxiality of the track first section and the outer opening size of the first track section, improve product quality, and enable customers to successfully fasten the track during assembly. The structural design is simple and novel, the manufacture is convenient, and the use is flexible.

[0037] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0038] Secondly, the drawings of the embodiments disclosed in the present utility model only involve structures related to the embodiments disclosed in the present utility model, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0039] Finally, the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A track first section coaxiality opening size inspection tool, characterized in that: The invention comprises a first gauge, a second gauge and a third gauge which are connected in sequence and arranged coaxially, wherein: the outer dimensions of the first gauge match the track slot dimensions of the first link of a standard crawler track; the length of the second gauge matches the outer opening dimensions of the first link of the standard crawler track; and the diameter of the third gauge matches the inner diameter dimensions of the pin hole of the first link of the standard crawler track.

2. The crawler first section coaxiality opening size inspection tool according to claim 1 is characterized in that: The cross section of the first gauge is a rectangular structure with arc-shaped ends, and the cross sections of the second gauge and the third gauge are circular.

3. The crawler first section coaxiality opening size inspection tool according to claim 1 is characterized in that: The length of the first gauge is 1 / 3 to 2 / 3 of the length of the second gauge; the length of the third gauge is 1 / 10 to 2 / 10 of the length of the second gauge.

4. The crawler first section coaxiality opening size inspection tool according to claim 1 is characterized in that: A stepped groove is formed on the front end of the third gauge and the outer peripheral body connected to the second gauge.

5. The crawler first section coaxiality opening size inspection tool according to claim 1 is characterized in that: The diameter of the third gauge is greater than or equal to the diameter of the second gauge.

6. The crawler first section coaxiality opening size inspection tool according to claim 1 is characterized in that: The outer dimensions of the first inspection fixture are 0.10-0.15 mm smaller than the track slot dimensions of the first link of the standard crawler track.

7. The crawler first section coaxiality opening size inspection tool according to claim 1 is characterized in that: The length of the second gauge is equal to the outer opening size of the first link of the standard crawler track.

8. The crawler first section coaxiality opening size inspection tool according to claim 1 is characterized in that: The diameter of the third inspection tool is 0.05-0.10 mm smaller than the inner diameter of the pin hole of the first link of the standard crawler track.

9. The crawler first section coaxiality opening size inspection tool according to claim 1 is characterized in that: The first gauge, the second gauge, the filter section and the third gauge are coaxially arranged and integrally formed.

10. The crawler first section coaxiality opening size inspection tool according to claim 1, characterized in that: The first inspection tool, the second inspection tool, the filter section and the third inspection tool are made of stainless steel or aluminum alloy.

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