Aerodynamic detection device for oil hole of automobile VVT phaser rotor

Abstract

The utility model belongs to the technical field of measuring equipment relates to a kind of automobile VVT phase ware rotor oil hole's pneumatic detection device.The utility model, including platform and chassis, the platform and chassis are fixed between by several struts, the waist line groove of five groups along the center point of chassis annular array distribution is opened in the chassis.The utility model is detected, and one face two hole positioning structure is formed to automobile VVT phase ware rotor by one face two hole positioning, so that automobile VVT phase ware rotor ensures correct position, waist line groove is used to adjust the angle and position of base plate, so that rotor oil hole detection component is in correct position and angle, the thickness of the height of the grinding height piece can make rotor oil hole detection component be in correct height, each rotor oil hole detection component is independently controlled, and all oil holes can be detected simultaneously, and detection cycle is shortened by more than 50% than mechanical gauge.

Description

Technical Field

[0001] This utility model belongs to the field of measuring equipment technology and relates to a pneumatic detection device for the oil hole of the rotor of an automotive VVT ​​phaser. Background Technology

[0002] Variable Valve Timing (VVT) systems control the oil flow on both sides of the rotor assembly, causing it to rotate relative to the stator and thus adjusting the valve opening and closing times according to engine speed. This improves sump efficiency and increases engine power. Currently, VVT rotors are typically manufactured using powder metallurgy, with circumferentially distributed side holes. These side holes provide flow channels for the oil, and their size and position significantly impact the overall performance of the VVT. Therefore, the size and position of these side holes must be guaranteed during VVT rotor production. Current VVT rotor oil hole inspection primarily uses mechanical fixtures (such as the dedicated fixture in authorization announcement CN203414030U), which are handheld for position determination. However, this method suffers from drawbacks: lack of ease of operation, manual inspection, cumbersome multi-hole inspection steps, low efficiency, long single-stage inspection time, and difficulty in adapting to automated production lines. Therefore, there is an urgent need to design a pneumatic inspection device for automotive VVT ​​phaser rotor oil holes that overcomes these shortcomings.

[0003] To overcome the shortcomings of existing technologies, people have continuously explored and proposed various solutions. For example, a Chinese patent discloses a special inspection tool for detecting the position of the side holes of a powder metallurgy VVT rotor [application number: 201320491229.0]. This tool includes a base and the VVT ​​rotor to be tested. Its features include: multiple sets of detection rod positioning and locking mechanisms surrounding the VVT ​​rotor, and an electrical control mechanism; the detection rod positioning and locking mechanism includes a detection rod, a guide block, and a cylinder; one end of the detection rod is connected to the cylinder, and the other end corresponds to the angular position of the VVT ​​rotor side hole via the guide block; a position sensor for detecting the movement of the detection rod is provided outside the cylinder, and the position sensor is connected to the electrical control mechanism. An alarm signal is issued when the detection rod does not reach its designated position. However, this solution still suffers from drawbacks during the testing process: insufficient ease of operation, manual inspection of the mechanical tool, cumbersome multi-hole inspection steps, low inspection efficiency, long single-process inspection time, and difficulty in adapting to automated production lines. Utility Model Content

[0004] The purpose of this invention is to address the above-mentioned problems by providing a pneumatic detection device for the oil hole of the rotor of an automotive VVT ​​phaser.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A pneumatic detection device for the oil hole of a VV phaser rotor in an automobile includes a platform and a chassis. The platform and chassis are fixed together by several pillars. Five sets of waistline grooves are arranged in a circular array along the center point of the chassis. Two base plates are installed above each set of waistline grooves. A lifting piece is placed on the bottom of one of the base plates above each set of waistline grooves. A one-sided two-hole positioning structure for fixing the automobile phaser rotor is provided at the center of the chassis. Each base plate is provided with a rotor oil hole detection component that can move back and forth in a straight line along one end close to or away from the one-sided two-hole positioning structure.

[0007] In the above-mentioned pneumatic detection device for the oil hole of the automotive phaser rotor, the one-sided two-hole positioning structure includes a stepped support mandrel set at the center hole of the chassis. The stepped support mandrel is fixed to the chassis by three fastening bolts. The stepped support mandrel is also provided with pins that are staggered with the fastening bolts. The bottom of the pin is fixed to the chassis, and the upper end passes through the stepped support mandrel.

[0008] In the above-mentioned pneumatic detection device for the oil hole of an automotive phaser rotor, the top of the stepped support spindle is provided with a positioning spindle mounting hole and a diamond pin hole with the opening facing upward and respectively installing a positioning spindle and a diamond pin.

[0009] In the aforementioned pneumatic detection device for the oil hole of an automotive phaser rotor, the positioning mandrel mounting hole is located at the center of the stepped support mandrel, and the diamond pin hole and the fastening bolt are staggered. When the bottom surface of the automotive phaser rotor contacts the upper surface of the stepped support mandrel, the positioning mandrel located in the positioning mandrel mounting hole passes through the center hole of the automotive phaser rotor, and the diamond pin located in the diamond pin hole passes through the side hole of the automotive phaser rotor.

[0010] In the above-mentioned pneumatic detection device for the oil hole of an automotive phaser rotor, the heightening component includes a pad disposed at the bottom of the base plate, and the horizontal height of the base plate with the pad is higher than the horizontal height of the base plate without the pad.

[0011] In the above-mentioned pneumatic detection device for the oil hole of an automotive phaser rotor, the rotor oil hole detection assembly includes a detection rod disposed above a base plate. The base plate is provided with a drive component for driving the detection rod to perform horizontal reciprocating linear motion. A detection guide component is installed at one end of the base plate near the center of the chassis, and the detection rod and the detection guide component are directly opposite each other.

[0012] In the above-mentioned pneumatic detection device for the oil hole of an automotive phaser rotor, the driving component includes a cylinder mounted on a base plate, and a connecting block is fixedly installed at the end of the piston rod of the cylinder, the connecting block being movably connected to the detection rod.

[0013] In the above-mentioned pneumatic detection device for the oil hole of an automotive phaser rotor, the detection guide includes a support block disposed at one end of the base plate near the center of the chassis. The support block is provided with a guide block, and a guide hole is provided through the guide block. The support block is provided with an alignment hole, and the guide hole and the alignment hole are connected. The guide hole and the detection rod are directly opposite each other.

[0014] In the above-mentioned pneumatic detection device for the oil hole of an automotive phaser rotor, the guide block and the support block are fixed together by screws.

[0015] In the aforementioned pneumatic detection device for the oil hole of an automotive phaser rotor, a support and adjustable feet are installed below the platform.

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] 1. During testing, this utility model uses a one-sided, two-hole positioning structure to position the VVT ​​phaser rotor of the vehicle, ensuring the correct position of the VVT ​​phaser rotor. The waistline groove is used to adjust the angle and position of the base plate, so that the rotor oil hole detection component is in the correct position and angle. By grinding and increasing the thickness of the heightening part, the rotor oil hole detection component can be placed at the correct height. Each rotor oil hole detection component is independently controlled, and all oil holes can be detected simultaneously. The testing cycle is shortened by more than 50% compared with mechanical inspection tools.

[0018] 2. This utility model uses circumferentially distributed detection rods, with the axis of the detection rods coaxial with the theoretical axis of the oil hole, and employs a cylinder to drive the array of detection rods, thereby achieving rapid docking between the detection rods and the oil hole.

[0019] Other advantages, objectives and features of this invention will be partly apparent from the following description, and partly understood by those skilled in the art through study and practice of this invention. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 This is a front view of the present invention.

[0022] Figure 3 This is a schematic diagram of the rotor structure of a VVT phaser in an automobile.

[0023] Figure 4 This is a partial structural schematic diagram of the present invention.

[0024] Figure 5 This is a schematic diagram of the rotor oil hole detection component.

[0025] In the diagram: Platform 1, Chassis 2, Support 3, Waistline Groove 4, Base Plate 5, Heightening Part 6, Pad Plate 6a, One-Sided Two-Hole Positioning Structure 7, Rotor Oil Hole Detection Assembly 8, Detection Rod 8a, Stepped Support Spindle 9, Positioning Spindle 91, Diamond Pin 92, Pin 9a, Positioning Spindle Mounting Hole 9b, Diamond Pin Hole 9c, Drive Component 10, Cylinder 10a, Connecting Block 10b, Detection Guide Component 11, Support Block 11a, Guide Block 11b, Guide Hole 11c, Alignment Hole 11d, Bracket 12, Adjustable Support Leg 13, Automotive VVT ​​Phaser Rotor 100, Center Hole 101, Side Hole 102, Oil Hole to be Detected 103. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings.

[0027] like Figure 1-5 As shown, a pneumatic detection device for the oil hole of a VVT phaser rotor in an automobile includes a platform 1 and a chassis 2. The platform 1 and the chassis 2 are fixed together by several pillars 3. Five sets of waistline grooves 4 are arranged in a ring array along the center point of the chassis 2. Two base plates 5 are installed above each set of waistline grooves 4. A raising piece 6 is placed on the bottom of one of the base plates 5 above each set of waistline grooves 4. A one-sided two-hole positioning structure 7 for fixing the VVT ​​phaser rotor 100 in the center of the chassis 2 is provided. Each base plate 5 is provided with a rotor oil hole detection component 8 that can move back and forth in a straight line along one end close to or away from the one-sided two-hole positioning structure 7.

[0028] In this embodiment, during testing, the automotive VVT ​​phaser rotor 100 is first placed on the one-sided two-hole positioning structure 7 at the center of the chassis 2. The one-sided two-hole positioning structure 7 forms a one-sided two-hole positioning for the automotive VVT ​​phaser rotor 100, ensuring the correct position of the automotive VVT ​​phaser rotor 14. There are a total of ten base plates 5, five of which have lifting parts 6 installed underneath. The main reason is that the oil holes 103 to be tested on the automotive VVT ​​phaser rotor 14 are at different heights. The ten oil holes 103 to be tested are divided into five evenly distributed and identical groups. Each group has one hole at a higher position and one hole at a lower position, and all holes have the same diameter. The groove 4 is used to adjust the angle and position of the base plate 5 so that the rotor oil hole detection component 8 is in the correct position and angle. By grinding the thickness of the heightening part 6, the rotor oil hole detection component 8 can be placed at the correct height. At this time, the rotor oil hole detection component 8 is started and inserted into the corresponding oil hole 103 to be detected. If it can be accurately inserted into the corresponding oil hole 103 to be detected, it means that the position and size of the oil hole 103 to be detected are correct. After the rotor oil hole detection component 8 retracts, the detection is completed. Each rotor oil hole detection component 8 is independently controlled and can detect all oil holes at the same time. The detection cycle is shortened by more than 50% compared with mechanical inspection tools.

[0029] Combination Figure 1-5 As shown, the one-sided two-hole positioning structure 7 includes a stepped support mandrel 9 disposed at the center hole of the chassis 2. The stepped support mandrel 9 is fixed to the chassis 2 by three fastening bolts. The stepped support mandrel 9 also has pins 9a arranged alternately with the fastening bolts. The bottom of the pins 9a is fixed to the chassis 2, and the upper end passes through the stepped support mandrel 9. The top of the stepped support mandrel 9 has positioning mandrel mounting holes 9 with the opening facing upwards, on which positioning mandrels 91 and diamond pins 92 are respectively installed. b and rhomboid pin hole 9c, the positioning mandrel mounting hole 9b is located at the center of the stepped support mandrel 9, the rhomboid pin hole 9c is staggered with the fastening bolt, when the bottom surface of the automotive VVT ​​phaser rotor 100 contacts the upper surface of the stepped support mandrel 9, the positioning mandrel 91 located in the positioning mandrel mounting hole 9b passes through the center hole 101 of the automotive VVT ​​phaser rotor 100, and the rhomboid pin 92 located in the rhomboid pin hole 9c passes through the side hole 102 of the automotive VVT ​​phaser rotor 100.

[0030] In this embodiment, before testing, the automotive VVT ​​phaser rotor 100 is placed on the stepped support mandrel 9. The automotive VVT ​​phaser rotor 100 engages with the upper surface of the stepped support mandrel 9, the outer circular surface of the positioning mandrel 91, and the diamond-shaped pin 92 through its end face, center hole 101, and side hole 102, respectively, forming a one-face, two-hole positioning system. This ensures the correct position of the automotive VVT ​​phaser rotor 14, while the pin 9a prevents the stepped support mandrel from rotating.

[0031] The positioning mandrel 91 has a clearance fit with the center hole of the automotive VVT ​​phaser rotor 100 (clearance ≤ 0.02 mm), and the diamond pin 92 and the side hole 102 are interference fit to eliminate rotor circumferential sway.

[0032] The heightening component 6 includes a pad 6a disposed at the bottom of the base plate 5, and the base plate 5 with the pad 6a is at a higher horizontal height than the base plate 5 without the pad 6a.

[0033] In this embodiment, the pad 6a can be used to adjust the rotor oil hole detection component 8 to the correct horizontal height. The height of the pad 6a can be controlled by grinding its thickness, which reduces costs.

[0034] Combination Figure 5 As shown, the rotor oil hole detection assembly 8 includes a detection rod 8a disposed above the base plate 5. The base plate 5 is provided with a drive component 10 for driving the detection rod 8a to perform horizontal reciprocating linear motion. A detection guide component 11 is installed at one end of the base plate 5 near the center of the chassis 2. The detection rod 8a is directly opposite the detection guide component 11. The drive component 10 includes a cylinder 10a disposed on the base plate 5. A connecting block 10b is fixedly installed at the piston rod end of the cylinder 10a. The connecting block 10b is movably connected to the detection rod 8a.

[0035] In this embodiment, during the detection process, cylinder 10a is activated, and the piston rod of cylinder 10a pushes the detection rod 8a through the connecting block 10b. If each detection rod 8a can be inserted into the corresponding oil hole 103 to be detected, it means that the position and size of the oil hole 103 to be detected are correct.

[0036] Combination Figure 1-5 As shown, the detection guide 11 includes a support block 11a located at one end of the base plate 5 near the center of the chassis 2. The support block 11a is provided with a guide block 11b. A guide hole 11c is opened in the guide block 11b and passes through the guide block 11b. An alignment hole 11d is opened in the support block 11a and passes through the support block 11a. The guide hole 11c and the alignment hole 11d are connected. The guide hole 11c is directly opposite to the detection rod 8a.

[0037] In this embodiment, during the movement of the detection rod 8a, the detection rod 8a passes through the alignment hole 11d in the support block 11a and the guide hole 11c in the guide block 11b, achieving a precise guiding effect. It will not apply lateral force to the detection rod 10, thus affecting the detection effect and improving the detection accuracy.

[0038] Combination Figure 1-5 As shown, the guide block 11b and the support block 11a are fixed together by screws, making disassembly and assembly simple and convenient.

[0039] Combination Figure 1-2 As shown, a support 12 and adjustable legs 13 are installed below the platform 1, which can increase the height of the workstation and facilitate the inspection by the staff.

[0040] The working principle of this utility model is as follows:

[0041] Before testing, the automotive VVT ​​phaser rotor 100 is placed on the stepped support spindle 9. The automotive VVT ​​phaser rotor 100 mates with the upper surface of the stepped support spindle 9, the outer circular surface of the positioning spindle 91, and the diamond-shaped pin 92 through its end face, center hole 101, and side hole 102, respectively, forming a one-face, two-hole positioning system to ensure the correct position of the automotive VVT ​​phaser rotor 14. The pin 9a prevents the stepped support spindle from rotating. There are a total of ten base plates 5, five of which have pads 6a installed underneath. This is mainly because the oil holes 103 to be tested on the automotive VVT ​​phaser rotor 14 are at different heights. The ten oil holes 103 to be tested are divided into five evenly distributed and identical groups. Each group has one hole at a higher position and one hole at a lower position, and all holes have the same diameter. The waist groove 4 is used to adjust the angle and position of the base plate 5 so that the testing rod 8a is in the correct position and angle. By adjusting the thickness of the pad 6a, the testing rod 8a can be positioned at the correct height.

[0042] During the testing process, cylinder 10a is activated, and the piston rod of cylinder 10a pushes the detection rod 8a through connecting block 10b. If each detection rod 8a can be inserted into the corresponding oil hole 103 to be tested, it means that the position and size of the oil hole 103 to be tested are correct. During the movement of the detection rod 8a, the detection rod 8a passes through the alignment hole 11d in the support block 11a and the guide hole 11c in the guide block 11b, achieving a precise guiding effect. It will not apply lateral force to the detection rod 10, thus affecting the testing effect and improving the testing accuracy.

[0043] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the spirit of this utility model.

[0044] Although this document frequently uses terms such as platform 1, chassis 2, support column 3, waistline groove 4, base plate 5, extension piece 6, pad plate 6a, one-sided two-hole positioning structure 7, rotor oil hole detection assembly 8, detection rod 8a, stepped support spindle 9, positioning spindle 91, diamond pin 92, pin 9a, positioning spindle mounting hole 9b, diamond pin hole 9c, drive component 10, cylinder 10a, connecting block 10b, detection guide component 11, support block 11a, guide block 11b, guide hole 11c, alignment hole 11d, bracket 12, adjustable support leg 13, automotive VVT ​​phaser rotor 100, center hole 101, side hole 102, and oil hole to be detected 103, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A pneumatic detection device for the oil hole of a VVT phaser rotor in an automobile, comprising a platform (1) and a chassis (2), wherein the platform (1) and the chassis (2) are fixed together by a plurality of support columns (3), characterized in that, The chassis (2) has five sets of waistline grooves (4) arranged in a ring array along the center point of the chassis (2). Two base plates (5) are installed above each set of waistline grooves (4). One of the base plates (5) above each set of waistline grooves (4) has a raised piece (6) at the bottom. The center of the chassis (2) has a two-hole positioning structure (7) for fixing the VVT ​​phaser rotor (100) of the car. Each base plate (5) has a rotor oil hole detection component (8) that can move back and forth in a straight line along one end close to or away from the two-hole positioning structure (7).

2. The pneumatic detection device for the oil hole of the VVT ​​phaser rotor in an automobile according to claim 1, characterized in that, The two-hole positioning structure (7) includes a stepped support spindle (9) located at the center hole of the chassis (2). The stepped support spindle (9) is fixed to the chassis (2) by three fastening bolts. The stepped support spindle (9) is also provided with pins (9a) that are interposed with the fastening bolts. The bottom of the pins (9a) is fixed to the chassis (2), and the upper end passes through the stepped support spindle (9).

3. The pneumatic detection device for the oil hole of the VVT ​​phaser rotor in an automobile according to claim 2, characterized in that, The stepped support mandrel (9) has a positioning mandrel mounting hole (9b) and a diamond pin hole (9c) with the opening facing upward and respectively mounting the positioning mandrel (91) and the diamond pin (92).

4. The pneumatic detection device for the oil hole of the VVT ​​phaser rotor in an automobile according to claim 3, characterized in that, The positioning mandrel mounting hole (9b) is located at the center of the stepped support mandrel (9), and the diamond pin hole (9c) is staggered with the fastening bolt. When the bottom surface of the automotive VVT ​​phaser rotor (100) contacts the upper surface of the stepped support mandrel (9), the positioning mandrel (91) located in the positioning mandrel mounting hole (9b) passes through the center hole (101) of the automotive VVT ​​phaser rotor (100), and the diamond pin (92) located in the diamond pin hole (9c) passes through the side hole (102) of the automotive VVT ​​phaser rotor (100).

5. A pneumatic detection device for the oil hole of an automotive VVT ​​phaser rotor according to any one of claims 1-4, characterized in that, The heightening component (6) includes a pad (6a) disposed at the bottom of the base plate (5), and the base plate (5) with the pad (6a) is at a higher horizontal height than the base plate (5) without the pad (6a).

6. A pneumatic detection device for the oil hole of an automotive VVT ​​phaser rotor according to any one of claims 1-4, characterized in that, The rotor oil hole detection assembly (8) includes a detection rod (8a) disposed above the base plate (5). The base plate (5) is provided with a drive component (10) for driving the detection rod (8a) to perform horizontal reciprocating linear motion. A detection guide component (11) is installed at one end of the base plate (5) near the center of the chassis (2). The detection rod (8a) and the detection guide component (11) are directly opposite each other.

7. The pneumatic detection device for the oil hole of an automotive VVT ​​phaser rotor according to claim 6, characterized in that, The driving component (10) includes a cylinder (10a) disposed on the base plate (5), and a connecting block (10b) is fixedly installed at the piston rod end of the cylinder (10a), and the connecting block (10b) is movably connected to the detection rod (8a).

8. The pneumatic detection device for the oil hole of the VVT ​​phaser rotor in an automobile according to claim 6, characterized in that, The detection guide (11) includes a support block (11a) located at one end of the base plate (5) near the center of the chassis (2). The support block (11a) is provided with a guide block (11b). A guide hole (11c) is opened in the guide block (11b) and a positioning hole (11d) is opened in the support block (11a). The guide hole (11c) and the positioning hole (11d) are connected. The guide hole (11c) is directly opposite to the detection rod (8a).

9. The pneumatic detection device for the oil hole of the VVT ​​phaser rotor in an automobile according to claim 8, characterized in that, The guide block (11b) and the support block (11a) are fixed together by screws.

10. The pneumatic detection device for the oil hole of the VVT ​​phaser rotor in an automobile according to claim 1, characterized in that, The platform (1) is equipped with a support (12) and adjustable feet (13) below it.

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