A three-pronged joint angle quality inspection device

Abstract

The utility model discloses a kind of three-pronged angle quality inspection devices, including horizontal base and the positioning pin for positioning three-pronged being set on horizontal base upper surface, the back of positioning pin is provided with guide rail along longitudinal direction on horizontal base upper surface, sliding block is slidably connected on the guide rail, the front of sliding block is fixed with vertical arc plate, the both sides of arc plate are movably hinged with vertical movable plate.The utility model simultaneously movably hinged movable plate by arc plate both sides, two movable plates are directly contacted with the two arms of three-pronged by sliding sliding block, the pointer of dial gauge directly reacts the extrusion degree of movable plate to measuring rod, if the dial gauge pointer indication number of angle detection between three arms is all same, it shows that angle is equal to meet standard, the specific position of three-pronged on horizontal base does not affect detection result, thus the diameter of positioning pin can be reduced, to facilitate dismounting three-pronged, not only improve quality inspection accuracy, but also facilitate quality inspection operation.

Description

Technical Field

[0001] This utility model relates to the field of quality inspection device technology, specifically a three-pronged joint angle quality inspection device. Background Technology

[0002] The three-way joint is an important component in the three-way universal joint of automotive transmission. It consists of a central spline sleeve and three surrounding arms. The included angle between the three arms is 120°. Therefore, during production and processing, quality inspection especially needs to check the angle. Otherwise, uneven force will occur on the three arms, resulting in excessive local wear and accelerated damage.

[0003] The existing three-pronged joint angle quality inspection device is shown in the attached diagram of the instruction manual. Figure 4 As shown, the three-pronged joint is placed on a horizontal base and fitted onto a locating pin. Rotating the joint clockwise causes one of its arms to contact a stop pin on the horizontal base. A horizontally mounted dial indicator measures the position of the corresponding arm. This arm presses against the dial indicator's measuring rod, allowing for angle quality inspection. It should be noted that the dial indicator does not directly measure the angle, but rather the deviation between the arm's position and the standard position. The dial indicator measures this deviation, and by measuring the deviation, it can be determined whether the included angle between the three arms of the three-pronged joint conforms to the standard.

[0004] However, the existing three-way joint angle inspection device is greatly affected by the fit between the locating pin and the center hole of the three-way joint. If the gap between the two is too large, it will wobble during assembly. Even with the presence of the locating pin and the stop pin, the three-way joint cannot be completely positioned. If the gap between the locating pin and the center hole of the three-way joint is too small, although it can improve the installation and inspection accuracy, it will be very inconvenient to disassemble and assemble. Therefore, it has shortcomings. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a three-pronged joint angle quality inspection device that facilitates the assembly and disassembly of the three-pronged joint, is easy to use, and effectively improves the accuracy of angle quality inspection.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] A three-pronged joint angle quality inspection device includes a horizontal base and a positioning pin for positioning the three-pronged joint on the upper surface of the horizontal base. A guide rail is arranged longitudinally on the back of the positioning pin on the horizontal base. A slider is slidably connected on the guide rail. A vertical arc plate is fixed on the front of the slider. Vertical movable plates are movably hinged to both sides of the arc plate.

[0008] A horizontal beam is provided above the slider. One end of the beam is fixedly connected to the back of one of the movable plates, and a dial indicator is fixedly mounted horizontally on the other end of the beam. The measuring rod of the dial indicator is supported on the back of the corresponding movable plate.

[0009] Preferably, the guide rail is a T-shaped slide rail, and the slide groove of the slider is adapted to the shape and size of the guide rail.

[0010] Preferably, the middle part of the arc-shaped plate is bent backward.

[0011] Preferably, the two movable plates are identical in shape and size.

[0012] Preferably, the angle between the measuring rod and the corresponding movable plate is 90 degrees.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This invention uses movable hinges on both sides of an arc-shaped plate, and a sliding slider to allow the two movable plates to directly contact the two arms of the three-pronged joint. The pointer of the dial indicator directly reflects the degree of compression of the measuring rod by the movable plate. If the dial indicator readings for angle detection between the three arms are all the same, it indicates that the angles are equal and meet the standard. The specific position of the three-pronged joint on the horizontal base does not affect the test results. Therefore, the diameter of the positioning pin can be reduced, which facilitates the disassembly and assembly of the three-pronged joint. This not only improves the quality inspection accuracy but also facilitates the quality inspection operation. Attached Figure Description

[0015] Figure 1 This is a top view of the overall structure of this utility model;

[0016] Figure 2 This is a side sectional view of the present invention;

[0017] Figure 3 A top view of the three-pronged joint of this utility model;

[0018] Figure 4 This is a top view of an existing three-pronged joint angle quality inspection device.

[0019] In the diagram: 1. Horizontal base; 2. Tripod joint; 3. Locating pin; 4. Guide rail; 5. Slider; 6. Arc plate; 7. Movable plate; 8. Crossbeam; 9. Dial indicator; 91. Measuring rod; 10. Stop pin. Detailed Implementation

[0020] 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.

[0021] like Figure 1-3As shown, this utility model provides a technical solution: a three-pronged joint angle quality inspection device, including a horizontal base 1 and a positioning pin 3 for positioning the three-pronged joint 2 provided on the upper surface of the horizontal base 1. A guide rail 4 is provided on the back of the positioning pin 3 along the longitudinal direction on the horizontal base 1. A slider 5 is slidably connected on the guide rail 4. The guide rail 4 is a T-shaped slide rail. The slide groove of the slider 5 is adapted to the shape and size of the guide rail 4. By sliding the slider 5, the arc plate 6 is moved closer to the three-pronged joint 2, so that the movable plate 7 can rest against the two arms of the three-pronged joint 2.

[0022] A vertical arc plate 6 is fixed on the front of the slider 5. The middle part of the arc plate 6 is bent backward to facilitate the movement of the spline sleeve of the three-pronged joint 2. Vertical movable plates 7 are movably hinged on both sides of the arc plate 6. The two movable plates 7 have the same shape and size.

[0023] A horizontal beam 8 is provided above the slider 5. One end of the beam 8 is fixedly connected to the back of one of the movable plates 7. A dial indicator 9 is horizontally fixedly installed at the other end of the beam 8, and the measuring rod 91 of the dial indicator 9 is supported on the back of the corresponding movable plate 7.

[0024] The angle between the measuring rod 91 and the corresponding movable plate 7 is 90 degrees, specifically it can be 85 degrees to 95 degrees. When the angle between the three-pronged joint 2 is 120 degrees, the measuring rod 91 is perpendicular to the movable plate 7. If the angle between the three-pronged joint 2 is less than or greater than 120 degrees, there will be a small angle between the measuring rod 91 and the movable plate 7, but it will not affect the extrusion and extension of the measuring rod 91.

[0025] In use, place the triangular joint 2 horizontally on the horizontal base 1 and fit it onto the positioning pin 3. The diameter of the positioning pin 3 is smaller than the center hole of the triangular joint 2, allowing the triangular joint 2 to rotate and shake around the positioning pin 3 to adjust its position and angle. Slide the slider 5 forward so that the arc plate 6 approaches the triangular joint 2. Shake the triangular joint 2, and the two movable plates 7 can be hinged to adaptively change their angles, so that the two movable plates 7 directly rest on the two arms of the triangular joint 2. The pointer of the dial indicator 9 directly reflects the degree of pressure of the movable plate 7 on the measuring rod 91. If the pointer readings of the dial indicator 9 for angle detection between the three arms are all the same, it indicates that the angles are equal and meet the standard. If the pointer reading of the dial indicator 9 increases at a certain time, it indicates that the included angle is too large, and vice versa, it indicates that the included angle is too small. It is convenient to use.

[0026] In this utility model, the dial indicator 9 is existing technology. Its specific principle and usage method are known technology and are not innovative points of this solution, so they will not be described in detail. In this solution, all components are regularly inspected and maintained according to their actual usage status. All vulnerable parts are replaced during maintenance according to their wear and tear and usage time to ensure their normal operation.

[0027] It should be noted that, in this document, terms such as “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A three-pronged joint angle quality inspection device, comprising a horizontal base (1) and a positioning pin (3) disposed on the upper surface of the horizontal base (1) for positioning a three-pronged joint (2), characterized in that: A guide rail (4) is longitudinally arranged on the back of the positioning pin (3) on the horizontal base (1). A slider (5) is slidably connected on the guide rail (4). A vertical arc plate (6) is fixed on the front of the slider (5). A vertical movable plate (7) is movably hinged on both sides of the arc plate (6). A horizontal beam (8) is provided above the slider (5). One end of the beam (8) is fixedly connected to the back of one of the movable plates (7). A dial indicator (9) is horizontally fixedly installed at the other end of the beam (8), and the measuring rod (91) of the dial indicator (9) is supported on the back of the corresponding movable plate (7).

2. The three-pronged joint angle quality inspection device according to claim 1, characterized in that: The guide rail (4) is a T-shaped slide rail, and the groove of the slider (5) is adapted to the shape and size of the guide rail (4).

3. The three-pronged joint angle quality inspection device according to claim 1, characterized in that: The middle part of the arc plate (6) bends backward.

4. The three-pronged joint angle quality inspection device according to claim 1, characterized in that: The two movable plates (7) are identical in shape and size.

5. The three-pronged joint angle quality inspection device according to claim 1, characterized in that: The angle between the measuring rod (91) and the corresponding movable plate (7) is 90 degrees.

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