A rapid detection large disc parts gauge

Abstract

The utility model relates to a kind of fast detection large disc type parts testing fixture, comprising: main body, for inserting disc type parts inner hole and as installation matrix;Positioning mechanism, rotation is set on the main body, for with inner hole as reference realizes the radial positioning of testing fixture;The positioning mechanism includes positioning plate and elastic tensioning mechanism, the positioning plate sliding is set in the both ends of the main body for with disc type parts inner hole contact;The elastic tensioning mechanism is set between the positioning plate and the main body, so that the positioning plate always sticks to part inner hole;Detection mechanism, rotation is set on the main body, it includes the detection component that can be radially adjusted, for contact disc type parts outer diameter.The utility model takes disc type parts inner hole as reference, can single hand support, save crane auxiliary, detection mechanism rotates a week can simultaneously realize the measurement of disc type parts outer diameter and roundness, realize the quick, accurate detection to product, guarantee the machining accuracy of disc type parts.

Description

Technical Field

[0001] This utility model relates to the field of outer diameter detection technology for disc-shaped parts, and in particular to a rapid inspection tool for large disc-shaped parts. Background Technology

[0002] In machining, large parts are frequently processed, such as those used in construction machinery and marine applications. These parts often have large dimensions; for example, disc-shaped parts commonly used in construction machinery, such as differential housings, planetary gear carriers, and valve heads, have diameters of approximately 350-600mm. When machining the outer diameter of such parts, inspection is necessary. Currently, common inspection methods include coordinate measuring machines (CMMs), specialized calipers, and large-scale calipers. However, these methods suffer from resource waste. For instance, CMMs are inaccurate and complex to operate; calipers and gauges, due to their large outer diameter, require large gauges and calipers, making them inconvenient to handle during inspection. Furthermore, caliper measurements require verification of the dimensions and cannot directly assess roundness; crosshair or crosshair inspection methods are needed to check roundness, resulting in long inspection cycles and high labor intensity. Utility Model Content

[0003] Therefore, the technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a rapid inspection fixture for large disc-shaped parts. Using the inner hole of the disc-shaped parts as the centering reference, it can quickly realize the detection of the outer diameter and the whole circle of the disc-shaped parts, and ensure the processing accuracy of the disc-shaped parts.

[0004] It can be used online, can measure the outer diameter of disc-shaped parts and perform full circle detection, and the measurement is simple and low-cost.

[0005] To solve the above-mentioned technical problems, this utility model provides a rapid inspection fixture for large disc-shaped parts, comprising: The main body is used to extend into the inner hole of disc-shaped parts and serve as a mounting base; A positioning mechanism is rotatably mounted on the main body and is used to achieve radial positioning of the inspection fixture with the inner hole as a reference. The positioning mechanism includes a positioning plate and an elastic tensioning mechanism. The positioning plate is slidably mounted at both ends of the main body for contacting the inner hole of the disc-shaped part. The elastic tensioning mechanism is disposed between the positioning plate and the main body so that the positioning plate is always in close contact with the inner hole of the part. The detection mechanism is rotatably mounted on the main body and includes radially adjustable detection components for contacting the outer diameter of disc-shaped parts.

[0006] In one embodiment of this utility model, the end of the positioning plate is provided with a limiting notch that matches the inner hole protrusion of the disc-shaped part.

[0007] In one embodiment of this utility model, a linkage mechanism is further included. The linkage mechanism is rotatably connected to the positioning plates disposed at both ends of the main body and is used to drive the positioning plates to open and close synchronously to achieve automatic centering.

[0008] In one embodiment of this utility model, the linkage mechanism includes a rotating rod and a connecting rod. The rotating rod is rotatably mounted on the main body, and both ends of the rotating rod are rotatably connected to two positioning plates through connecting rods, so as to realize the synchronous extension and retraction of the positioning plates at both ends.

[0009] In one embodiment of this utility model, the elastic tensioning mechanism includes a compression spring, which is disposed between the main body and the positioning plate to provide radial tension so that the positioning plate is always in close contact with the inner diameter of the disc-shaped part.

[0010] In one embodiment of the present invention, an embedding groove for accommodating a compression spring is provided within the main body.

[0011] In one embodiment of the present invention, the detection mechanism includes a first detection plate, a second detection plate, and a third detection plate. The first detection plate is rotatably connected to the main body, the second detection plate is slidably mounted on the first detection plate, and the third detection plate is connected to the second detection plate for contacting and detecting the outer diameter of the disc-shaped part.

[0012] In one embodiment of this utility model, a radial sliding groove hole is provided on the second detection plate, and the locking component passes through the radial sliding groove hole to lock and fix the second detection plate and the first detection plate.

[0013] In one embodiment of the present invention, a height adjustment mechanism is further included. The height adjustment mechanism is disposed at the bottom of the main body and is used to adjust the axial height of the gauge in the inner hole of the disc-shaped part.

[0014] In one embodiment of this utility model, the height adjustment mechanism includes a height adjustment rod and a locking nut. The height adjustment rod is connected to the main body via a screw pair, and the locking nut is screwed onto the height adjustment rod and abuts against the main body. The axial position of the gauge in the inner hole of the disc-shaped part is changed by rotating the adjustment rod, and is fixed by the locking nut.

[0015] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial effects: This utility model discloses a rapid inspection fixture for large disc-shaped parts. The main body is placed inside the disc-shaped part and fixed by a positioning mechanism. During measurement, the inner hole serves as a reference, allowing for single-handed support and eliminating the need for a crane. A single rotation of the inspection mechanism simultaneously measures the outer diameter and roundness of the disc-shaped part, enabling rapid and accurate inspection and ensuring the machining precision of these parts. When positioning the disc-shaped part inside the inner hole, the elastic tensioning mechanism continuously applies radial load, eliminating differences in manual thrust. The positioning plates at both ends open and close synchronously, automatically aligning the inner hole center, eliminating the need for dial indicator alignment and multi-point readings using crosshairs and markers. The inspection components of the inspection mechanism are radially adjustable, allowing the same fixture to cover multiple specifications, thus reducing manufacturing costs. Attached Figure Description

[0016] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. Figure 1 This is a schematic diagram of the structure of the rapid detection fixture for large disc-shaped parts in a preferred embodiment of the present invention; Figure 2 for Figure 1 The diagram shows a rapid inspection fixture for large disc-shaped parts and a schematic diagram of the structure of the disc-shaped parts. Figure 3 for Figure 2 Top view; Figure 4 for Figure 3 Sectional view of AA; Figure 5 for Figure 3 BB section view; Explanation of reference numerals in the accompanying drawings: 1. Main body; 2. First detection plate; 3. Positioning plate; 4. Rotating rod; 5. Connecting rod; 6. Second detection plate; 7. Third detection plate; 8. Radial sliding groove hole; 9. Locking assembly; 10. Compression spring; 11. Height adjustment rod; 12. Nut; 100. Disc-shaped parts. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.

[0018] Reference Figure 1 As shown, this utility model provides a rapid inspection fixture for large disc-shaped parts, comprising: Main body 1, used to extend into the inner hole of disc-shaped part 100 and serve as a mounting base; A positioning mechanism is rotatably mounted on the main body 1 and is used to achieve radial positioning of the inspection fixture with the inner hole as a reference. The positioning mechanism includes a positioning plate 3 and an elastic tensioning mechanism. The positioning plate 3 is slidably mounted at both ends of the main body 1 for contacting the inner hole of the disc-shaped part 100. The elastic tensioning mechanism is disposed between the positioning plate 3 and the main body 1 so that the positioning plate 3 is always in close contact with the inner hole of the part. The detection mechanism is rotatably mounted on the main body 1. The detection mechanism includes a radially adjustable detection component for contacting the outer diameter of the disc-type part 100.

[0019] Furthermore, the end of the positioning plate 3 is provided with a limiting notch 31 that matches the inner hole protrusion of the disc-shaped part 100. The limiting notch 21 at the end of the positioning plate 3 engages axially with the inner hole protrusion of the disc-shaped part 100, completing axial support and radial initial positioning in one go, avoiding the fixture from floating or tilting during the measurement process, and improving repeatability accuracy.

[0020] Furthermore, it also includes a linkage mechanism, which is rotatably connected to the positioning plates 3 located at both ends of the main body 1, and is used to drive the positioning plates 3 to open and close synchronously to achieve automatic centering. The positioning plates 3 at both ends extend and retract synchronously under the drive of the linkage mechanism, automatically aligning the center of the inner hole, eliminating the need for additional dial indicator alignment, greatly shortening the clamping time, and reducing the skill requirements for operation.

[0021] The linkage mechanism described in this embodiment includes a rotating rod 4 and a connecting rod 5. The rotating rod 4 is rotatably mounted on the main body 1. Both ends of the rotating rod 4 are rotatably connected to two positioning plates 3 via the connecting rod 5, thereby realizing the synchronous extension and retraction of the positioning plates 3 at both ends. The rotation of the rotating rod 4 can drive the two positioning plates 3 to open and close synchronously via the connecting rod 5. The structure is simple, rigid, and has small synchronization error, ensuring centering consistency.

[0022] When the rotating rod 4 rotates around the main body 1, the rotating rod 4 drives the connecting rod 5 to move, and the connecting rod 5 drives the positioning plate 3 to move, thereby realizing the linkage of the positioning plates 3 at both ends of the main body 1. When the positioning plates 3 are linked, they can adapt to the inner diameter of different disc-shaped parts 100 and find the center of the inner diameter of the disc-shaped parts 100.

[0023] Furthermore, the elastic tensioning mechanism includes a compression spring 10, which is disposed between the main body 1 and the positioning plate 3 to provide radial tension, ensuring that the positioning plate 3 remains in close contact with the inner diameter of the disc-shaped part 100. The compression spring 10 provides continuous radial tension, eliminating uneven manual pushing force, and can automatically compensate even after long-term wear; maintenance only requires replacing the standard spring.

[0024] In this embodiment, the main body 1 is provided with an embedding groove for accommodating the compression spring 10. The compression spring 10 is hidden in the embedding groove, which avoids chip entanglement and impact, extends its service life, and makes the whole machine compact.

[0025] In the above structure, the detection mechanism includes a first detection plate 2, a second detection plate 6, and a third detection plate 7. The first detection plate 2 is rotatably connected to the main body 1, the second detection plate 6 is slidably mounted on the first detection plate 2, and the third detection plate 7 is connected to the second detection plate 6, used to contact and detect the outer diameter of the disc-shaped part 100. The first detection plate 2 provides a rotational reference, the second detection plate 6 is responsible for radial sliding adjustment, and the third detection plate 7, as a probe, directly contacts the outer diameter. The modular design facilitates quick replacement of the probe or the addition of a digital display / go / no-go gauge, and is compatible with multiple measurement methods.

[0026] In practical applications, the main body 1 is equipped with screws; the screws secure the first detection plate 2 to the main body 1, preventing it from falling off when rotating around the main body 1. The second detection plate 6 can slide back and forth on the first detection plate 2, thereby adjusting the outer diameter. The third detection plate 7 is fixed to the second detection plate 6 with screws. The third detection plate 7 has elongated slotted holes, allowing for vertical adjustment of its height.

[0027] In this embodiment, the second detection plate 6 is provided with a radial sliding groove hole 8. The second detection plate 6 is locked and fixed to the first detection plate 2 by the locking component 9 passing through the radial sliding groove hole 8, so as to adapt to disc-shaped parts 100 with different outer diameters.

[0028] Furthermore, it also includes a height adjustment mechanism, which is located at the bottom of the main body 1 and is used to adjust the axial height of the gauge in the inner hole of the disc-shaped part 100. The height adjustment mechanism can quickly change the axial height of the gauge in the inner hole, adapt to different depths or stepped hole structures, and achieve "zeroing for one piece, universal for batches".

[0029] Preferably, the height adjustment mechanism includes a height adjustment rod 11 and a locking nut 12. The height adjustment rod 11 is connected to the main body 1 via a screw pair. The locking nut 12 is screwed onto the height adjustment rod 11 and abuts against the main body 1. Rotating the adjustment rod 11 changes the axial position of the gauge in the inner hole of the disc-shaped part 100, and the locking nut 12 fixes it in place. The cooperation between the height adjustment rod 11 and the locking nut 12 allows for fine adjustment of the axial position without additional tools by rotating the height adjustment rod 11. The locking nut 12 immediately prevents loosening, ensuring that the height does not drift during rotational measurement and ensuring the comparability of data from the same cross-section.

[0030] A rapid inspection tool for large disc-shaped parts based on the above structure; Before use, the position of the second detection plate 6 on the first detection plate 2 is pre-adjusted according to the size to be tested set in the disc part 100, and the size is measured with calipers; when the combined size of the second detection plate 6 and the first detection plate 2 reaches the size to be tested, the locking component 9 is locked and fixed to realize the fixed connection between the first detection plate 2 and the second detection plate 6. like Figure 2-5 As shown, the main body 1 is inserted into the inner hole of the disc-shaped part 100. The positioning plate 3 automatically opens outward under the action of the elastic tensioning mechanism, and its outer end face is in close contact with the inner hole wall of the disc-shaped part 100 to achieve radial self-centering with the inner hole as the reference. At the same time, the third detection plate 7 clamps the edge of the end face of the disc-shaped part 100. The operator manually controls the rotation of the first detection plate 2, causing the second detection plate 6 and the third detection plate 7 to rotate continuously around the disc-shaped part 100 for one revolution. If the third detection plate 7 remains in close contact with the edge of the disc-shaped part 100 throughout the rotation process, then the outer diameter and roundness of the disc-shaped part 100 meet the measurement standards and are deemed qualified. By adopting the aforementioned rapid inspection fixture for large disc-shaped parts, full inspection can be performed on-line, completely solving the bottleneck of traditional large calipers' "multi-point measurement with crosshairs and crosshairs, low efficiency, and only able to perform random inspections".

[0031] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A rapid detection large disc parts gauge, characterized in that, include: The main body is used to extend into the inner hole of disc-shaped parts and serve as a mounting base; A positioning mechanism is rotatably mounted on the main body and is used to achieve radial positioning of the inspection fixture with the inner hole as a reference. The positioning mechanism includes a positioning plate and an elastic tensioning mechanism. The positioning plate is slidably mounted at both ends of the main body for contacting the inner hole of the disc-shaped part. The elastic tensioning mechanism is disposed between the positioning plate and the main body so that the positioning plate is always in close contact with the inner hole of the part. The detection mechanism is rotatably mounted on the main body and includes a radially adjustable detection component for contacting the outer diameter of the disc-shaped part. When the detection component can engage with the edge of the disc-shaped part, it can rotate continuously one revolution relative to the main body, thereby simultaneously measuring the outer diameter and roundness of the disc-shaped part during the rotation.

2. The rapid detection of large disc parts detection device according to claim 1, characterized in that, The end of the positioning plate is provided with a limiting notch that matches the inner hole protrusion of the disc-shaped part.

3. The rapid detection of large disc parts detection device according to claim 1, characterized in that, It also includes a linkage mechanism, which is rotatably connected to the positioning plates located at both ends of the main body, and is used to drive the positioning plates to open and close synchronously to achieve automatic centering.

4. The quick detection tool for large disc-shaped parts according to claim 3, characterized in that, The linkage mechanism includes a rotating rod and a connecting rod. The rotating rod is rotatably mounted on the main body. Both ends of the rotating rod are rotatably connected to two positioning plates through connecting rods, so as to realize the synchronous extension and retraction of the positioning plates at both ends.

5. The quick detection tool for large disc-shaped parts according to claim 1, characterized in that, The elastic tensioning mechanism includes a compression spring, which is located between the main body and the positioning plate to provide radial tension so that the positioning plate is always in close contact with the inner diameter of the disc-shaped part.

6. The quick detection tool for large disc-shaped parts according to claim 5, characterized in that, The main body is provided with an embedding groove for accommodating a compression spring.

7. The quick detection tool for large disc-shaped parts according to claim 1, characterized in that, The testing mechanism includes a first testing plate, a second testing plate, and a third testing plate. The first testing plate is rotatably connected to the main body, the second testing plate is slidably mounted on the first testing plate, and the third testing plate is connected to the second testing plate for contacting and testing the outer diameter of disc-shaped parts.

8. The quick detection tool for large disc-shaped parts according to claim 7, characterized in that, The second detection plate is provided with a radial sliding groove hole, and the locking component passes through the radial sliding groove hole to lock and fix the second detection plate to the first detection plate.

9. The quick detection tool for large disc-shaped parts according to claim 1, characterized in that: It also includes a height adjustment mechanism, which is located at the bottom of the main body and is used to adjust the axial height of the inspection tool in the inner hole of the disc-shaped part.

10. The quick detection tool for large disc-shaped parts according to claim 9, characterized in that: The height adjustment mechanism includes a height adjustment rod and a locking nut. The height adjustment rod is connected to the main body via a screw pair. The locking nut is screwed onto the height adjustment rod and presses against the main body. The axial position of the gauge in the inner hole of the disc-shaped part is changed by rotating the adjustment rod and is fixed by the locking nut.

Images