Crawler beam split testing tool

Abstract

The utility model provides a kind of tracked beam divides and verifies frock, including installation base and the symmetry of at least two parallel guide rails of installation base median axis arrangement, further include the first measurement component of sliding setting in guide rail one end and the second measurement component of slidable setting in guide rail other end;At least one positioning pin is provided on first tracked beam mounting seat component and second tracked beam mounting seat component, two the positioning pin is along diagonal arrangement, tracked beam bottom surface is opened in the process hole matched with positioning pin position, positioning is realized when positioning pin is embedded in process hole during assembly.Using the cooperation of positioning pin and the process hole of pre-machining on tracked beam, the quick, repeated and accurate positioning of tracked beam on frock is realized.The first and second measurement components can be slidable, so that they can adapt to tracked beam products of different length sizes, increase the versatility of frock and reduce the cost of manufacturing special gauges for different products.

Description

Technical Field

[0001] This utility model relates to a track beam centering inspection fixture, belonging to the field of quality inspection fixture technology. Background Technology

[0002] The track beam of an excavator is an important supporting component that supports the excavator's track movement. The dimensional accuracy of the track beam directly affects the smoothness of the excavator's movement.

[0003] The common manufacturing process for track beams without post-weld machining involves separately welding and machining components such as the reducer mount, idler wheel bracket, and track beam frame, and then joining them together using tooling. Due to welding deformation during the track beam assembly welding process, the centering of the reducer mount and idler wheel bracket relative to the track beam frame often fails to meet the drawing requirements after welding. Therefore, track beams without post-weld machining typically undergo full inspection. The existing centering inspection method, using portable coordinate measuring machines, is time-consuming, inefficient, and costly, failing to meet the production capacity requirements for track beams. Summary of the Invention

[0004] Purpose of the invention: To address the shortcomings of existing technologies, this utility model provides a track beam centering inspection fixture to solve the problems mentioned in the background.

[0005] Technical solution: A track beam centering inspection fixture includes a mounting base and at least two parallel guide rails symmetrically arranged along the central axis of the mounting base, and also includes a first measuring component slidably disposed at one end of the guide rails and a second measuring component slidably disposed at the other end of the guide rails. The first measuring assembly includes at least one first depth measuring device slidably mounted on a guide rail and a first track beam mounting assembly slidably mounted on the guide rail; The second measuring assembly includes at least one second depth measuring device slidably mounted on a guide rail and a second track beam mounting assembly slidably mounted on the guide rail; Both the first track beam mounting base assembly and the second track beam mounting base assembly are provided with at least one positioning pin. The two positioning pins are arranged diagonally. The bottom surface of the track beam has process holes that match the positions of the positioning pins. During assembly, the positioning pins are embedded in the process holes to achieve positioning.

[0006] By employing symmetrically arranged guide rails and sliding measuring components, the centering (or center line finding) of track beams can be inspected quickly and accurately, avoiding the errors and inefficiencies associated with traditional manual measurements. The use of locating pins in conjunction with pre-machined process holes on the track beams enables rapid, repeatable, and precise positioning of the track beams on the tooling. This ensures consistent reference points for each measurement, significantly improving the reliability and comparability of inspection results. Both the first and second measuring components are sliding, allowing them to adapt to track beam products of different lengths, increasing the tooling's versatility and reducing the cost of manufacturing specialized inspection fixtures for different products.

[0007] The first depth measuring device is mounted on a guide rail between the outer side of the first track beam mounting assembly and the adjacent edge, and includes at least one first mounting frame and two depth measuring rulers detachably mounted on the first mounting frame, the two depth measuring rulers probing in opposite directions.

[0008] Integrating two measuring scales into one mounting bracket saves more space than using two separate measuring devices, making the tooling structure more compact. It can be used for depth measurement of guide wheel mounting parts with small operating spaces, as well as depth measurement of gearbox mounting parts with relatively large operating spaces. Simply select the appropriate measuring scale.

[0009] The first depth measuring device is mounted on a guide rail between the outer side and the edge of the first track beam mounting base assembly. The guide rail is configured as two sets symmetrically arranged along the axis of the mounting base. Each set of guide rails includes two parallel guide rail units. Two first depth measuring devices are provided and slidably mounted on the two sets of guide rails respectively. The two first depth measuring devices are arranged opposite to each other. Each first depth measuring device includes a first mounting frame and a depth measuring ruler that can be detachably mounted on the first mounting frame.

[0010] The two relatively independent measuring devices can be adjusted in relative position according to actual needs, which may be more flexible to adapt to track beams with special structures, making operation more convenient.

[0011] The second depth measuring device is mounted on a guide rail between the outer side of the second track beam mounting assembly and the adjacent edge, and includes at least one second mounting bracket and two depth measuring scales detachably mounted on the second mounting bracket, the two depth measuring scales probing in opposite directions.

[0012] The second depth measuring device is applied to one side of the track beam guide wheel mounting section, where the operating space is relatively small. Therefore, a more compact design is required to facilitate the operator's measurement work.

[0013] The first track beam mounting base assembly and the second track beam mounting base assembly have the same structure and are arranged opposite to each other. Each of the first track beam mounting base assembly or the second track beam mounting base assembly includes a mounting base that is slidably arranged on the guide rail. Two guide limiting posts are symmetrically arranged on the upper side of the mounting base along the central axis of the mounting base, close to the edge of the mounting base, and two support pads are arranged in the area between the guide limiting posts. The support pads are provided with positioning pins.

[0014] The guide pins are responsible for coarse positioning and guidance during the initial placement of the track beam, preventing misalignment; the locating pins are responsible for the final precise positioning. This tiered positioning method makes workpiece placement easier and more accurate. The support pads provide a stable support surface, ensuring that the track beam will not deform or move under stress during measurement, guaranteeing the stability of the measurement reference. The identical structure and relative arrangement of the mounting brackets at both ends ensure that the positioning and support conditions at both ends of the track beam are completely consistent, guaranteeing the accuracy of the "centering" inspection.

[0015] The upper half of both the guide limiting post and the positioning pin are designed with a tapered structure, and a gap is left between the guide limiting post and the assembled track beam.

[0016] The tapered design acts as a guide, allowing the workpiece to slide easily into the correct position even with slight placement deviations, greatly reducing operational difficulty and alignment time. The reserved clearance is to accommodate the assembly of different track beam models. Different track beam models exhibit significant variations in length and relatively minor variations in width, but certain differences exist. Therefore, the clearance is set to accommodate different track beams, and the guide and limiting posts also prevent the track beam from tipping over.

[0017] Limiting plates are provided on the mounting bases near the outer side of the first depth measuring device and the inner side of the first track beam mounting base assembly, and on the mounting bases near the outer side of the second depth measuring device and the inner side of the second track beam mounting base assembly.

[0018] The limit plate prevents the measuring device or mounting base from accidentally sliding out of the guide rail's effective range or colliding, protecting the precision measuring device from impact damage. It also serves as a reference, allowing operators to quickly move the mounting base or depth measuring device to its initial position, improving operational repeatability and efficiency.

[0019] The mounting base is equipped with protective frames on both sides. In the initial state, the protective frames on both sides cover the first depth measuring device and the second depth measuring device, respectively.

[0020] In the initial state, the depth measuring devices on both sides are placed in the starting position, that is, near the edge. The protective frame can protect the depth measuring devices. When the track beam is hoisted and placed on the mounting base, it can prevent the track beam from colliding with the depth measuring devices and causing damage to the depth measuring devices.

[0021] Beneficial effects: This utility model achieves precise measurement of the centering dimensions of the reducer base and guide wheel bracket by accurately positioning the track beam frame; the mounting base assembly and depth measuring device can be switched by sliding on a linear guide rail, making it universal for different machine models. The switching process is simple and greatly reduces the investment in production site and tooling costs; this tooling uses the mounting base assembly for precise positioning and the digital depth gauge for rapid measurement, reducing the number of parts transfers and significantly improving inspection efficiency. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0023] Figure 1 This is a diagram showing the overall tooling of this utility model with the track beam already assembled.

[0024] Figure 2 This is a structural diagram of the first depth measuring device of this utility model.

[0025] Figure 3 This is a structural diagram of the second depth measuring device of this utility model.

[0026] Figure 4 This is a structural diagram of the first track beam mounting base and the second track beam mounting base after assembly with the track beam bottom plate of this utility model, wherein the track beam part of the beam structure is omitted.

[0027] Figure 5 This is a structural diagram of the first track beam mounting base assembly of this utility model. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "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.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] like Figures 1 to 5 As shown, a track beam centering inspection fixture includes a mounting base 1 and at least two parallel guide rails 2 symmetrically arranged along the central axis of the mounting base 1. It also includes a first measuring component slidably disposed at one end of the guide rails 2 and a second measuring component slidably disposed at the other end of the guide rails 2. The first measuring component includes at least one first depth measuring device 3 slidably mounted on the guide rail 2 and a first track beam mounting bracket 4 slidably mounted on the guide rail 2; The second measuring assembly includes at least one second depth measuring device 5 slidably mounted on the guide rail 2 and a second track beam mounting assembly 6 slidably mounted on the guide rail 2; At least one positioning pin 7 is provided on both the first track beam mounting base assembly 4 and the second track beam mounting base assembly 6. At least two positioning pins 7 are arranged diagonally. Process holes matching the positions of the positioning pins 7 are opened on the bottom surface of the track beam. During assembly, the positioning pins 7 are embedded in the process holes to achieve positioning.

[0032] The symmetrically arranged guide rails 2 and sliding measuring components allow for quick and accurate inspection of the track beam's centering, avoiding the errors and inefficiencies associated with traditional manual measurements. The locating pins 7, engaged with pre-machined process holes on the track beam, enable rapid, repeatable, and precise positioning of the track beam on the tooling. This ensures consistent measurement references for each measurement, significantly improving the reliability and comparability of inspection results. Both the first and second measuring components are sliding, allowing them to adapt to track beams of different lengths, increasing the tooling's versatility and reducing the cost of manufacturing specialized inspection fixtures for different products.

[0033] The first depth measuring device 3 is mounted on the guide rail 2 between the outer side of the first track beam mounting bracket 4 and the adjacent edge, and includes at least one first mounting frame 31 and two depth measuring rulers detachably mounted on the first mounting frame 31, with the two depth measuring rulers probing in opposite directions.

[0034] Integrating two measuring scales into one mounting bracket saves more space than using two separate measuring devices, making the tooling structure more compact. It can be used for depth measurement of guide wheel mounting parts with small operating spaces, as well as depth measurement of gearbox mounting parts with relatively large operating spaces. Simply select the appropriate measuring scale.

[0035] The first depth measuring device 3 is mounted on the guide rail 2 between the outer side and the edge of the first track beam mounting base assembly 4. The guide rail 2 is configured as two sets symmetrically arranged along the axis of the mounting base 1. Each set of guide rail 2 includes two parallel guide rail units. Two first depth measuring devices 3 are provided and slidably mounted on the two sets of guide rail 2 respectively. The two first depth measuring devices 3 are arranged opposite to each other. Each first depth measuring device 3 includes a first mounting frame 31 and a depth measuring ruler that can be detachably mounted on the first mounting frame 31.

[0036] The two relatively independent measuring devices can be adjusted in relative position according to actual needs, which may be more flexible to adapt to track beams with special structures, making operation more convenient.

[0037] The second depth measuring device 5 is mounted on the guide rail 2 between the outer side of the second track beam mounting bracket 6 and the adjacent edge, and includes at least one second mounting bracket 51 and two depth measuring rulers detachably mounted on the second mounting bracket 51, the two depth measuring rulers probing in opposite directions.

[0038] The second depth measuring device 5 is applied to one side of the track beam guide wheel mounting part, where the operating space is relatively small. Therefore, a more compact design is required to facilitate the operator's corresponding measurement work.

[0039] The first track beam mounting base assembly 4 and the second track beam mounting base assembly 6 have the same structure and are arranged opposite to each other. Each of the first track beam mounting base assembly 4 or the second track beam mounting base assembly 6 includes a mounting base 41 that is slidably arranged on the guide rail 2. Two guide limiting posts 42 are symmetrically arranged on the upper side of the mounting base 41 along the central axis of the mounting base 41, close to the edge of the mounting base 41, and two support pads 43 are arranged in the area between the guide limiting posts 42. The support pads 43 are provided with positioning pins 7.

[0040] The guide pin 42 is responsible for coarse positioning and guidance during the initial placement of the track beam to prevent misalignment; the positioning pin 7 is responsible for the final precise positioning. This tiered positioning method makes workpiece placement easier and more accurate. The support pad 43 provides a stable support surface, ensuring that the track beam will not deform or move due to force during measurement, thus guaranteeing the stability of the measurement reference. The identical structure and relative arrangement of the mounting brackets 41 at both ends ensure that the positioning and support conditions at both ends of the track beam are completely consistent, guaranteeing the accuracy of the "centering" inspection.

[0041] The upper part of both the guide limiting post 42 and the positioning pin 7 is set as a tapered structure, and a gap is left between the guide limiting post 42 and the assembled track beam.

[0042] The tapered design acts as a guide, allowing the workpiece to slide easily into the correct position even with slight deviations in placement, greatly reducing operational difficulty and alignment time. The reserved clearance is to accommodate the assembly of different track beam models. Different track beam models exhibit significant variations in length and relatively minor variations in width, but certain differences exist. Therefore, a clearance is set to accommodate different track beams. The guide limit post 42 also serves to prevent the track beam from tipping over.

[0043] Limiting plates 8 are provided on the mounting base 1 near the outer side of the first depth measuring device 3 and the inner side of the first track beam mounting base assembly 4, and on the mounting base 1 near the outer side of the second depth measuring device 5 and the inner side of the second track beam mounting base assembly 6.

[0044] The limiting plate 8 prevents the measuring device or mounting base 41 from accidentally sliding out of the effective range of the guide rail 2 or from colliding, protecting the precision measuring device from damage. It also serves as a reference, allowing operators to quickly move the mounting base 41 or depth measuring device to its initial position, improving operational repeatability and efficiency.

[0045] Both sides of the mounting base 1 are provided with protective frames 9. In the initial state, the protective frames 9 on both sides cover the first depth measuring device 3 and the second depth measuring device 5 respectively.

[0046] In the initial state, the depth measuring devices on both sides are placed in the starting position, that is, near the edge. The protective frame 9 can protect the depth measuring devices. When the track beam is hoisted and placed on the mounting base 41, it can prevent the track beam from colliding with the depth measuring devices and causing damage to the depth measuring devices.

[0047] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0048] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A track beam centering inspection fixture, characterized in that: It includes a mounting base (1) and at least two parallel guide rails (2) symmetrically arranged along the central axis of the mounting base (1), and also includes a first measuring component slidably disposed at one end of the guide rails (2) and a second measuring component slidably disposed at the other end of the guide rails (2); The first measuring assembly includes at least one first depth measuring device (3) slidably mounted on the guide rail (2) and a first track beam mounting assembly (4) slidably mounted on the guide rail (2). The second measuring assembly includes at least one second depth measuring device (5) slidably mounted on the guide rail (2) and a second track beam mounting assembly (6) slidably mounted on the guide rail (2); At least one positioning pin (7) is provided on both the first track beam mounting base assembly (4) and the second track beam mounting base assembly (6). The two positioning pins (7) are arranged diagonally. The bottom surface of the track beam has a process hole that matches the position of the positioning pin (7). During assembly, the positioning pin (7) is embedded in the process hole to achieve positioning.

2. The track beam centering inspection fixture according to claim 1, characterized in that: The first depth measuring device (3) is mounted on a guide rail (2) between the outer side of the first track beam mounting assembly (4) and the adjacent edge, and includes at least one first mounting frame (31) and two depth measuring rulers detachably mounted on the first mounting frame (31), the two depth measuring rulers probing in opposite directions.

3. The track beam centering inspection fixture according to claim 1, characterized in that: The first depth measuring device (3) is set on the guide rail (2) between the outer side and the edge of the first track beam mounting base assembly (4). The guide rail (2) is set as two sets symmetrically arranged along the axis of the mounting base (1). Each set of guide rail (2) includes two parallel guide rail (2) units. Two first depth measuring devices (3) are set and slidably installed on the two sets of guide rails (2). The two first depth measuring devices (3) are arranged opposite to each other. Each first depth measuring device (3) includes a first mounting frame (31) and a depth measuring ruler that can be detachably mounted on the first mounting frame (31).

4. The track beam centering inspection fixture according to claim 1, characterized in that: The second depth measuring device (5) is disposed on the guide rail (2) between the outer side of the second track beam mounting assembly (6) and the adjacent edge, including at least one second mounting bracket (51) and two depth measuring rulers detachably mounted on the second mounting bracket (51), the two depth measuring rulers probing in opposite directions.

5. The track beam centering inspection fixture according to claim 1, characterized in that: The first track beam mounting base assembly (4) and the second track beam mounting base assembly (6) have the same structure and are arranged opposite to each other. Each of the first track beam mounting base assembly (4) or the second track beam mounting base assembly (6) includes a mounting base (41) slidably arranged on the guide rail (2). Two guide limiting posts (42) are symmetrically arranged on the upper side of the mounting base (41) along the central axis of the mounting base (41) and two support pads (43) arranged in the area between the guide limiting posts (42). The support pads (43) are provided with positioning pins (7).

6. The track beam centering inspection fixture according to claim 5, characterized in that: The upper half of the guide limiting post (42) and the positioning pin (7) are both set as tapered structures, and there is a gap between the guide limiting post (42) and the assembled track beam.

7. The track beam centering inspection fixture according to claim 1, characterized in that: Limiting plates (8) are provided on the mounting base (1) near the outside of the first depth measuring device (3) and the inside of the first track beam mounting base assembly (4), and on the mounting base (1) near the outside of the second depth measuring device (5) and the inside of the second track beam mounting base assembly (6).

8. The track beam centering inspection fixture according to claim 1, characterized in that: The mounting base (1) is provided with protective frames (9) on both sides. In the initial state, the protective frames (9) on both sides cover the first depth measuring device (3) and the second depth measuring device (5) respectively.

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