Flywheel induction hole phase detection tool

Abstract

The utility model belongs to the technical field of detection tools, and provides a flywheel induction hole phase detection tool which comprises a bottom plate. The positioning shaft is arranged on the bottom plate and is used for positioning the flywheel to be detected on the bottom plate; the detection block is arranged on the bottom plate, a detection hole penetrates through the detection block, and the phase of the detection hole corresponds to the phase of the induction hole of the flywheel to be detected; the detection rod passes through the detection hole and extends into the induction hole of the flywheel to be detected for detection; the flywheel induction hole phase detection device solves the problems that in the prior art, flywheel induction hole phase is difficult to rapidly detect, and production efficiency is affected, the deviation of the flywheel induction hole phase is reflected through the detection rod, rapid detection is achieved, and production efficiency is improved.

Description

Technical Field

[0001] The present application relates to the technical field of inspection tools, and in particular to a flywheel sensing hole phase detection tool. Background Art

[0002] A flywheel is a disc-shaped part with a large moment of inertia, and it acts like an energy storage device. For a four-stroke engine, work is done once for every four piston strokes, that is, only the power stroke does work, while the exhaust, intake and compression strokes all consume work. Therefore, the torque output by the crankshaft changes periodically, and the crankshaft speed is also unstable. In order to improve this situation, a flywheel needs to be installed at the rear end of the crankshaft. Therefore, the flywheel plays a very important role in the operation of automobile engines.

[0003] The phase of the flywheel sensing hole can identify the highest point of the crankshaft. The ECU calculates and controls the normal operation of the engine by controlling the injection time and injection amount. If the phase deviation of the flywheel sensing hole is large, it will have an adverse effect on the normal operation and emissions of the engine. In actual production, the detection of the flywheel sensing hole phase generally adopts three-coordinate detection, but its detection time is long, which is not conducive to on-site production, resulting in the inability to quickly detect on-site, thereby affecting production efficiency and failing to meet production needs. Utility Model Content

[0004] In view of the above shortcomings of the prior art, the purpose of the present application is to provide a flywheel sensing hole phase detection tooling to solve the problem in the prior art that the flywheel sensing hole phase is difficult to detect quickly, affecting production efficiency.

[0005] In order to achieve the above-mentioned purpose and other related purposes, the present application provides a flywheel sensing hole phase detection tool, comprising:

[0006] Base plate;

[0007] A positioning shaft, arranged on the bottom plate, for positioning the flywheel to be tested on the bottom plate;

[0008] A detection block is arranged on the bottom plate, and a detection hole is formed through the detection block, and the phase of the detection hole corresponds to the phase of the sensing hole of the flywheel to be tested;

[0009] A detection rod passes through the detection hole and extends into the sensing hole of the flywheel to be detected for detection.

[0010] Optionally, a first step, a second step and a third step are provided on the positioning shaft, the outer diameters of the first step, the second step and the third step decrease successively toward the bottom plate, and the first step and the third step are concentrically arranged.

[0011] Optionally, the end surface of the first step is a positioning surface, and a positioning pin is provided on the positioning surface, and the positioning pin matches the flywheel to be measured to fix the flywheel to be measured.

[0012] Optionally, the end surface of the first step has a chamfered structure in the circumferential direction, and the chamfered structure forms an inclined guide surface.

[0013] Optionally, a positioning hole is opened on the base plate, and the bottom step of the positioning shaft extends into the positioning hole to install the positioning shaft on the base plate. Mounting holes are opened around the positioning hole, and fasteners are passed through the mounting holes. The positioning shaft is connected to the base plate through the fasteners.

[0014] Optionally, a bushing is further included, which is arranged in the detection hole to protect the detection block and the detection rod. The bushing is provided with a through hole for the detection rod to pass through, and the through hole is coaxial with the detection hole.

[0015] Optionally, the detection rod includes a first detection portion and a second detection portion, and an outer diameter of the first detection portion is greater than an outer diameter of the second detection portion.

[0016] Optionally, three detection blocks are provided, and the positions and heights of the detection blocks match the flywheel to be tested.

[0017] Optionally, the detection block is connected to the base plate via a connecting member.

[0018] Optionally, the bottom plate is further provided with a receiving groove for accommodating the detection rod.

[0019] In the flywheel sensing hole phase detection tooling provided in the present application, the flywheel to be tested is positioned and installed on the base plate through the positioning shaft, the detection rod is passed through the detection hole on the detection block and extended into the sensing hole of the flywheel to be tested, the front end of the detection rod is abutted against the sensing hole, and the phase deviation of the flywheel sensing hole is reflected by the detection rod, thereby realizing rapid detection and improving production efficiency. In addition, whether the detection rod can be extended into the sensing hole of the flywheel to be tested can also serve as a supplementary detection of the position offset of the flywheel sensing hole, which can better meet the needs of flywheel product quality inspection in actual production. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of a flywheel sensing hole phase detection tooling from a first perspective shown in an embodiment of the present application;

[0021] Figure 2 A schematic diagram of the structure of a flywheel sensing hole phase detection tooling from a second perspective shown in one embodiment of the present application;

[0022] Figure 3This is a schematic structural diagram of a positioning shaft in a flywheel sensing hole phase detection tooling shown in an embodiment of the present application;

[0023] Figure 4 This is a schematic diagram of the structure of a detection block in a flywheel sensing hole phase detection tooling shown in an embodiment of the present application;

[0024] Figure 5 This is a schematic diagram of the structure of a detection rod in a flywheel sensing hole phase detection tooling shown in an embodiment of the present application;

[0025] Figure 6 This is a schematic diagram of the structure of a bushing in a flywheel sensing hole phase detection tooling according to an embodiment of the present application.

[0026] Part Number Description

[0027] 1-bottom plate; 2-detection block; 3-detection rod; 4-first step; 5-second step; 6-fastener; 7-third step; 8-positioning pin; 9-accommodating groove; 10-positioning surface; 11-detection hole; 12-connector; 13-first detection part; 14-second detection part; 15-bushing; 16-through hole. DETAILED DESCRIPTION

[0028] The following is an explanation of the implementation of the present application by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present application from the contents disclosed in this specification.

[0029] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions that can be implemented in this application, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed in this application without affecting the effects that can be produced by this application and the purposes that can be achieved. At the same time, the terms such as "front", "back", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of narration, and are not used to limit the scope of the implementation of this application. The change or adjustment of their relative relationship should also be regarded as the scope of the implementation of this application without substantial changes in the technical content.

[0030] See also Figures 1 to 6 The present application exemplarily provides a flywheel sensing hole phase detection tool, comprising:

[0031] Bottom plate 1;

[0032] A positioning shaft, arranged on the bottom plate 1, for positioning the flywheel to be tested on the bottom plate 1;

[0033] A detection block 2 is arranged on the bottom plate 1, and a detection hole 11 is formed through the detection block 2, and the phase of the detection hole 11 corresponds to the phase of the sensing hole of the flywheel to be tested;

[0034] The detection rod 3 passes through the detection hole 11 and extends into the sensing hole of the flywheel to be detected for detection.

[0035] The flywheel to be tested is positioned and installed on the base plate 1 through the positioning axis, and the detection rod 3 is passed through the detection hole 11 on the detection block 2 and extended into the sensing hole of the flywheel to be tested. The front end of the detection rod 3 is abutted against the sensing hole, and the phase deviation of the flywheel sensing hole is reflected by the detection rod 3, so as to realize rapid detection and improve production efficiency. In addition, whether the detection rod 3 can be extended into the sensing hole of the flywheel to be tested can also be used as a supplementary detection of the position deviation of the flywheel sensing hole, which can better meet the needs of flywheel product quality inspection in actual production.

[0036] It should be noted that, in the present embodiment, three detection blocks 2 are provided, and the position and height of the detection blocks 2 match the flywheel to be tested. Each detection block 2 corresponds to a different type of flywheel. The position and size of the positioning block are adjusted accordingly according to the flywheel to be tested in actual production needs. This can meet the phase detection of the sensing holes of different types of flywheels, better meet the detection needs of flywheels in actual production, and reduce the manufacturing cost of the detection tooling.

[0037] In this embodiment, a first step 4, a second step 5 and a third step 7 are provided on the positioning shaft. The outer diameters of the first step 4, the second step 5 and the third step 7 decrease successively toward the base plate 1. The first step 4 and the third step 7 are concentrically arranged. The flywheel to be tested is positioned and installed on the base plate 1 by matching the first step 4 with the flywheel to be tested.

[0038] Specifically, the end face of the first step 4 is a positioning surface 10, and a positioning pin 8 is provided on the positioning surface 10. The positioning pin 8 matches the flywheel to be tested to fix the flywheel to be tested. After the flywheel to be tested is positioned and installed on the base plate 1, the flywheel to be tested is fixed by the positioning pin 8. During the detection process, the positioning pin 8 can prevent the flywheel to be tested from deflecting on the positioning axis, thereby ensuring the accuracy of the detection.

[0039] In detail, the end surface of the first step 4 has a chamfered structure in the circumferential direction, and the chamfered structure forms an inclined guide surface, which makes it easier to assemble the flywheel to be tested with the positioning shaft, and more stably positions the flywheel to be tested on the base plate 1.

[0040] In this embodiment, a positioning hole is opened on the base plate 1, and the bottom step of the positioning shaft extends into the positioning hole to install the positioning shaft on the base plate 1. Mounting holes are opened circumferentially of the positioning hole, and fasteners 6 are passed through the mounting holes. The positioning shaft is connected to the base plate 1 through the fasteners 6. Specifically, the fasteners 6 can be connecting elements such as bolts and screws, which are not limited here.

[0041] In this embodiment, the center line of the positioning pin 8 and the center line of the mounting hole form an angle of 45°. After the flywheel to be tested is positioned and installed on the base plate 1, the flywheel to be tested is positioned at an angle through the positioning pin 8. The sensing hole of the flywheel to be tested corresponds to the detection hole 11, and no manual adjustment is required. The position of the flywheel to be tested after installation is the detection position.

[0042] In this embodiment, the detection tooling also includes a bushing 15, which is arranged in the detection hole 11 to protect the detection block 2 and the detection rod 3. The bushing 15 is provided with a through hole 16 for the detection rod 3 to pass through, and the through hole 16 is coaxial with the detection hole 11. The bushing 15 can avoid collision and friction between the detection rod 3 and the detection hole 11 during the detection process, thereby protecting the detection block 2 and the detection rod 3.

[0043] Specifically, the detection rod 3 includes a first detection part 13 and a second detection part 14. The outer diameter of the first detection part 13 is larger than the outer diameter of the second detection part 14. During the detection process, the second detection part 14 of the detection rod 3 passes through the detection hole 11, and the front end of the first detection part 13 extends into the sensing hole of the flywheel to be tested and abuts against the sensing hole. At this time, the first detection part 13 contacts the bushing 15, and the friction force is increased by the bushing 15. The detection rod 3 can detect the phase of the sensing hole more stably to prevent the detection rod 3 from slipping and affecting the detection result.

[0044] In this embodiment, the detection block 2 is connected to the base plate 1 via a connecting member 12. Specifically, the connecting member 12 may be a connecting element such as a bolt or a screw, which is not limited herein.

[0045] In this embodiment, a receiving groove 9 for accommodating the detection rod 3 is further provided on the bottom plate 1. After the detection is completed, the detection rod 3 is recovered in the receiving groove 9 to facilitate the next detection.

[0046] In summary, in the flywheel sensing hole phase detection tooling provided in the present application, the flywheel to be tested is positioned and installed on the base plate 1 through the positioning axis, the detection rod 3 passes through the detection hole 11 on the detection block 2, and extends into the sensing hole of the flywheel to be tested. The front end of the detection rod 3 abuts against the sensing hole, and the deviation of the phase of the flywheel sensing hole is reflected by the detection rod 3, so as to achieve rapid detection and improve production efficiency. In addition, whether the detection rod 3 can be extended into the sensing hole of the flywheel to be tested can also be used as a supplementary detection of the position offset of the flywheel sensing hole, which can better meet the needs of flywheel product quality inspection in actual production.

[0047] The above embodiments are merely illustrative of the principles and effects of the present application, and are not intended to limit the present application. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present application. Therefore, all equivalent modifications or changes made by a person of ordinary skill in the art without departing from the spirit and technical ideas disclosed in the present application shall still be covered by the claims of the present application.

Claims

1. A flywheel sensing hole phase detection tool, characterized in that: include: Base plate; A positioning shaft, arranged on the bottom plate, for positioning the flywheel to be tested on the bottom plate; A detection block is arranged on the bottom plate, and a detection hole is formed through the detection block, and the phase of the detection hole corresponds to the phase of the sensing hole of the flywheel to be tested; A detection rod passes through the detection hole and extends into the sensing hole of the flywheel to be detected for detection.

2. The flywheel sensing hole phase detection tooling according to claim 1, characterized in that: The positioning shaft is provided with a first step, a second step and a third step, the outer diameters of the first step, the second step and the third step decrease successively toward the bottom plate, and the first step and the third step are concentrically arranged.

3. The flywheel sensing hole phase detection tooling according to claim 2, characterized in that: The end surface of the first step is a positioning surface, and a positioning pin is arranged on the positioning surface. The positioning pin matches with the flywheel to be tested to fix the flywheel to be tested.

4. The flywheel sensing hole phase detection tooling according to claim 2, characterized in that: The end surface of the first step has a chamfered structure in the circumferential direction, and the chamfered structure forms an inclined guide surface.

5. The flywheel sensing hole phase detection tooling according to claim 1, characterized in that: A positioning hole is provided on the base plate, and the bottom step of the positioning shaft extends into the positioning hole to install the positioning shaft on the base plate. Mounting holes are provided around the positioning hole, and fasteners are passed through the mounting holes. The positioning shaft is connected to the base plate through the fasteners.

6. The flywheel sensing hole phase detection tooling according to claim 1, characterized in that: It also includes a bushing, which is arranged in the detection hole and is used to protect the detection block and the detection rod. The bushing is provided with a through hole for the detection rod to pass through, and the through hole is coaxial with the detection hole.

7. The flywheel sensing hole phase detection tooling according to claim 1, characterized in that: The detection rod includes a first detection portion and a second detection portion, and an outer diameter of the first detection portion is greater than an outer diameter of the second detection portion.

8. The flywheel sensing hole phase detection tooling according to claim 1, characterized in that: There are three detection blocks, and the positions and heights of the detection blocks match the flywheel to be tested.

9. The flywheel sensing hole phase detection tooling according to claim 1, characterized in that: The detection block is connected to the bottom plate via a connecting piece.

10. The flywheel sensing hole phase detection tooling according to claim 1, characterized in that: The bottom plate is also provided with a receiving groove for accommodating the detection rod.

Images