Special high-precision detection instrument for center height of star wheel in inclined fairway

Abstract

The utility model discloses a special high-precision detection instrument for the center height of a star wheel in an inclined fairway, and the instrument comprises a bearing pedestal, and a detector body which is fixedly disposed at the rear middle part of the top surface of the bearing pedestal. A detection platform is fixedly arranged in front of the top surface of the bearing base, and a characteristic measuring instrument is fixedly arranged behind the top surface of the detection platform; the left and right sides of the top surface of the bearing base are fixedly provided with portable handles, and the right side of the top surface of the detection platform above the bearing base is fixedly provided with a displacement sensor. According to the special high-precision detection instrument for the center height of the star wheel in the inclined fairway, a locking positioning column of the detection platform is matched with a slidable locking sliding block, so that star wheels with different specifications in the inclined fairway are positioned and locked, deviation and dislocation in the subsequent detection process are prevented, and the detection accuracy is improved. Meanwhile, the characteristic measuring instrument performs characteristic detection on the upper surface of the star wheel in the inclined fairway, and the displacement sensor performs displacement detection on the star wheel in the inclined fairway in the detection process.

Description

Technical Field

[0001] The utility model relates to the technical field of star wheel detection in an inclined ball track, in particular to a high-precision detection instrument for the center of a star wheel in an inclined ball track. Background Art

[0002] The inclined ball track inner star wheel is a variable diameter inner star wheel suitable for automotive CVJs. Its main components include the ball track, star wheel angle, and star wheel surface. The inclined ball track inner star wheel is designed to improve the efficiency and durability of the vehicle's transmission system. By adjusting the offset distance between the inner and outer star wheels, the six steel balls can be aligned on the bisecting plane during operation, thereby improving durability and service life. However, machined inclined ball track inner star wheels are typically measured using three-dimensional coordinate measurement or conventional inspection fixtures, which has low inspection efficiency and high inspection costs.

[0003] Invention publication number CN101430183A discloses a device for detecting the center of the inner star wheel's ball path. A dial indicator mount is connected to the center of the locating seat. A lateral structure for determining the ball path's center position is provided, consisting of a pin, steel ball, screw, and cover. During actual measurement, the base plane is set at zero. The locating seat is then moved up and down to detect the deviation between the actual and theoretical distances between the inner star wheel's measured surface and its center. This device is particularly suitable for use as a production-site inspection tool.

[0004] However, the above-mentioned detection device for the star wheel in the inclined ball track still has the following problems during actual use: the surface flatness detection is achieved through the dial indicator above the positioning seat, but it cannot meet the surface characteristic detection and outer wall displacement detection required by the star wheel in the inclined ball track. Similarly, the positioning seat cannot lock and position the star wheel in the inclined ball track, and thus it is easy to offset and misalign during the rotational circumferential detection process, thereby affecting the accuracy of the detection data.

[0005] Therefore, we proposed a high-precision detection instrument for the center of the star wheel in the inclined ball track to solve the above problems. Utility Model Content

[0006] The purpose of the utility model is to provide a high-precision detection instrument for the center of the star wheel in the inclined ball track, in order to solve the problem that the existing surface flatness detection is achieved by using a dial indicator above the positioning seat, but it cannot meet the surface characteristic detection and outer wall displacement detection required by the star wheel in the inclined ball track. The same positioning seat cannot lock and position the star wheel in the inclined ball track, and thus it is easy to deviate and misalign during the rotational circumferential detection process, thereby affecting the accuracy of the detection data.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: a high-precision detection instrument for the center of the star wheel in the inclined ball track, comprising a bearing base and a detector body fixedly mounted on the rear middle part of the top surface of the bearing base;

[0008] The system further comprises: a detection platform is fixedly provided in front of the top surface of the bearing base, and a characteristic measuring instrument is fixedly provided behind the top surface of the detection platform;

[0009] Among them, portable handles are fixedly provided on the left and right sides of the top surface of the carrying base, and a displacement sensor is fixedly provided on the right side of the top surface of the detection platform above the carrying base.

[0010] Preferably, the characteristic measuring instrument on the left side of the top surface of the detection platform and the displacement sensor on the right side are connected to the detection instrument body, and the surface characteristics and outer wall displacement of the star wheel in the inclined ball track are measured by the characteristic measuring instrument and the displacement sensor.

[0011] Preferably, the characteristic measuring instrument on the left side of the top surface of the detection platform and the displacement sensor on the right side are connected to the detection instrument body, and the surface characteristics and outer wall displacement of the star wheel in the inclined ball track are measured by the characteristic measuring instrument and the displacement sensor.

[0012] Preferably, the outer side of the positioning locking column is provided with a through sliding groove at equal angles, and the interior of the through sliding grooves opened at equal angles are provided with a locking slider for sliding movement, and the outer end of the locking slider set at equal angles is connected to the positioning locking column through a reset spring.

[0013] Preferably, a lifting threaded rod is rotatably provided at the center position of the top surface of the positioning base plate through a bearing, and the bottom end of the lifting threaded rod is passed through and provided below the bottom surface of the detection platform for manual rotation control, and the upper end of the lifting threaded rod is rotatably provided at the internal center position of the positioning locking column.

[0014] Preferably, the internal sliding of the positioning locking column is provided with a resistance ring body, and the inner center position of the resistance ring body is threadedly connected to the outer wall of the lifting threaded rod, and the outer end of the resistance ring body is provided with positioning grooves at equal angles, and the positioning grooves opened at equal angles are distributed one-to-one with the locking slider inside the positioning locking column.

[0015] Preferably, the inner ends of the locking sliders arranged at equal angles inside the positioning locking column are distributed in an inclined structure, and the locking sliders are connected by sliding engagement between their inner ends and the positioning grooves opened at the outer ends of the contact ring bodies, so that the locking sliders slide outward through the rising of the contact ring body.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the high-precision detection instrument for the center of the star wheel in the inclined ballway can position and lock the star wheels in the inclined ballway of different specifications through the locking and positioning columns of the detection platform and the slidable locking slider, thereby preventing displacement and dislocation during subsequent detection. At the same time, the characteristic measuring instrument performs characteristic detection on the upper surface of the star wheel in the inclined ballway, and the displacement sensor performs displacement detection on the star wheel in the inclined ballway during the detection process. The specific contents are as follows:

[0017] 1. Install the inner star wheel of the inclined ball track through the internal shaft hole by means of the positioning locking column above the positioning base plate. Then, rotate the lifting threaded rod to drive the threaded contact ring to slide upward, so that it passes through the positioning slot provided on the outer end and engages with the locking slider. The upward movement of the contact ring drives the locking slider with the inclined structure on the inner side to push outward, thereby causing the locking slider to contact and position the shaft hole of the inner star wheel of the inclined ball track, thereby preventing misalignment during subsequent inspections.

[0018] 2. The characteristic measuring instrument at the rear left side of the positioning base plate performs characteristic detection on the upper surface of the star wheel in the inclined ball lane, and the displacement sensor at the right side of the positioning base plate performs displacement detection on the star wheel in the inclined ball lane during the detection process so that the data can be displayed through the detector body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the installation structure of the positioning locking column of the utility model;

[0021] Figure 3 This is a schematic diagram of the three-dimensional structure of the characteristic measuring instrument of the utility model;

[0022] Figure 4 This is a schematic diagram of the installation structure of the locking slider of the utility model;

[0023] Figure 5 This is a structural diagram of the locking slider of the utility model after sliding.

[0024] In the figure: 1. Load-bearing base; 2. Detector body; 3. Detection platform; 4. Characteristic measuring instrument; 5. Portable handle; 6. Displacement sensor; 7. Positioning base plate; 8. Positioning locking column; 9. Locking slider; 10. Return spring; 11. Lifting threaded rod; 12. Resistance ring; 13. Positioning slide; 14. Through slide. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-Figure 5 , the utility model provides the following technical solutions:

[0027] Embodiment 1: In order to solve the existing problems, this embodiment adopts the following technical solutions, a high-specification and high-precision detection instrument for the center of the star wheel in the inclined ball track, including a bearing base 1, and a detection instrument body 2 fixedly installed in the middle of the rear of the top surface of the bearing base 1; a detection platform 3 is fixedly provided in front of the top surface of the bearing base 1, a positioning base plate 7 is fixedly provided in front of the top surface of the detection platform 3, and a positioning locking column 8 is fixedly provided at the center position of the top surface of the positioning base plate 7; a through slide groove 14 is opened at equal angles on the outer side of the positioning locking column 8, and a locking slider 9 is slidably provided inside the through slide groove 14 opened at equal angles, and the outer end of the locking slider 9 set at equal angles is connected to the positioning locking column 8 by a reset spring 10.

[0028] The top center position of the positioning base plate 7 is provided with a lifting threaded rod 11 through a bearing for rotation, and the bottom end of the lifting threaded rod 11 is passed through and arranged under the bottom surface of the detection platform 3 for manual rotation control, and the upper end of the lifting threaded rod 11 is rotatably arranged at the inner center position of the positioning locking column 8; the inner sliding of the positioning locking column 8 is provided with a resistance ring body 12, and the inner center position of the resistance ring body 12 is threadedly connected to the outer wall of the lifting threaded rod 11, and the outer end of the resistance ring body 12 is provided with positioning grooves 13 at equal angles, and the positioning grooves 13 opened at equal angles are distributed one-to-one with the locking slider 9 inside the positioning locking column 8; the inner ends of the locking sliders 9 set at equal angles inside the positioning locking column 8 are distributed in an inclined structure, and the locking slider 9 is slidably engaged with each other through its inner end and the positioning grooves 13 opened at the outer end of the resistance ring body 12, so that the resistance locking slider 9 slides outward through the rising of the resistance ring body 12.

[0029] like Figure 3-Figure 5As shown, when the inner star wheel of the inclined ball channel needs to be installed above the positioning base plate 7, the inner star wheel of the inclined ball channel is sleeved through the internal axial hole and penetrated through the outside of the positioning locking column 8 in the middle of the top surface of the positioning base plate 7, and then the lifting threaded rod 11 set on the bottom surface of the positioning base plate 7 is manually rotated, so that the upper end of the lifting threaded rod 11 rotates inside the positioning locking column 8, and then the interference ring body 12 threadedly connected between the inside of the positioning locking column 8 and the lifting threaded rod 11 is engaged with the locking slider inside the positioning locking column 8 through the positioning slot 13 opened at the outer end. The inner ends of 9 are slidably engaged with each other, so that the rotating lifting threaded rod 11 drives the threadedly connected interference ring body 12 to move upward, and then the interference ring body 12 interferes with the inclined surface of the inner end of the locking slider 9 through the positioning slot 13 opened at its outer end, driving the locking slider 9 set at equal angles to slide outward along the through slot 14 opened inside the positioning locking column 8, and then the locking slider 9 set at equal angles interferes with the axial hole inside the star wheel in the inclined ball channel through its outer end, preventing the star wheel in the inclined ball channel from being offset and dislocated when it is subsequently interfered with.

[0030] Example 2: In order to solve the existing problems, this embodiment adopts the following technical solutions: a high-precision detection instrument for the center of the star wheel in the inclined ball lane is provided, and a characteristic measuring instrument 4 is fixedly installed behind the top surface of the detection platform 3; wherein, portable handles 5 are fixedly installed on both sides of the top surface of the supporting base 1, and a displacement sensor 6 is fixedly installed on the right side of the top surface of the detection platform 3 above the supporting base 1.

[0031] The characteristic measuring instrument 4 on the left side of the top surface of the detection platform 3 and the displacement sensor 6 on the right side are connected to the detection instrument body 2, and the surface characteristics and outer wall displacement of the star wheel in the inclined ball track are measured by the characteristic measuring instrument 4 and the displacement sensor 6.

[0032] like Figure 1-Figure 3 As shown, after the star wheel in the inclined ball track is fixedly installed on the outer side of the positioning locking column 8 above the positioning base plate 7, the characteristic measuring instrument 4 on the left rear side of the positioning base plate 7 performs characteristic detection on the upper surface of the star wheel in the inclined ball track, and the displacement sensor 6 on the right side of the positioning base plate 7 performs displacement detection on the star wheel in the inclined ball track during the detection process, so that data can be displayed through the detector body 2.

[0033] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-precision detection instrument for the center of a star wheel in an inclined ballway, comprising a supporting base (1) and a detector body (2) fixedly mounted on the rear middle portion of the top surface of the supporting base (1); It is characterized in that Also includes: A detection platform (3) is fixedly provided in front of the top surface of the bearing base (1), and a characteristic measuring instrument (4) is fixedly provided behind the top surface of the detection platform (3); Portable handles (5) are fixedly provided on both left and right sides of the top surface of the supporting base (1), and a displacement sensor (6) is fixedly provided on the right side of the top surface of the detection platform (3) above the supporting base (1).

2. The high-precision detection instrument for the center of the star wheel in the inclined ball track according to claim 1 is characterized by: A positioning base plate (7) is fixedly provided in front of the top surface of the detection platform (3), and a positioning locking column (8) is fixedly provided at the center position of the top surface of the positioning base plate (7).

3. The high-precision detection instrument for the center of the star wheel in the inclined ball track according to claim 2 is characterized by: The characteristic measuring instrument (4) on the left side of the top surface of the detection platform (3) and the displacement sensor (6) on the right side are connected to the detection instrument body (2), and the surface characteristics and outer wall displacement of the star wheel in the inclined ball track are measured by the characteristic measuring instrument (4) and the displacement sensor (6).

4. The high-precision detection instrument for the center of the star wheel in the inclined ball track according to claim 2 is characterized by: The outer side of the positioning locking column (8) is provided with a through sliding groove (14) at equal angles, and the interior of the through sliding groove (14) provided at equal angles is provided with a locking slider (9) for sliding, and the outer end of the locking slider (9) provided at equal angles is connected to the positioning locking column (8) via a return spring (10).

5. The high-precision detection instrument for the center of the star wheel in the inclined ball track according to claim 4 is characterized by: A lifting threaded rod (11) is rotatably provided at the center position of the top surface of the positioning base plate (7) via a bearing, and the bottom end of the lifting threaded rod (11) is provided below the bottom surface of the detection platform (3) for manual rotation control, and the upper end of the lifting threaded rod (11) is rotatably provided at the inner center position of the positioning locking column (8).

6. The high-precision detection instrument for the center of the star wheel in the inclined ball track according to claim 5 is characterized by: The positioning locking column (8) is internally slidably provided with a resisting ring body (12), and the inner center position of the resisting ring body (12) is threadedly connected to the outer wall of the lifting threaded rod (11), and the outer end of the resisting ring body (12) is provided with a positioning groove (13) at equal angles, and the positioning grooves (13) opened at equal angles are distributed one-to-one with the locking slider (9) inside the positioning locking column (8).

7. The high-precision detection instrument for the center of the star wheel in the inclined ball track according to claim 6 is characterized by: The inner ends of the locking sliders (9) arranged at equal angles inside the positioning locking column (8) are arranged in an inclined structure, and the locking sliders (9) are connected to each other by sliding engagement between the inner ends thereof and the positioning slots (13) provided at the outer ends of the abutting ring body (12), so that the rising abutting ring body (12) causes the locking sliders (9) to slide outward.

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