Tool for detecting parallelism and inner diameter of cam

Abstract

The utility model relates to the technical field of detection devices, and discloses a cam parallelism and inner diameter detection tool, which comprises a bottom plate, a positioning plate is movably arranged above the bottom plate, a positioning seat is arranged above the positioning plate, two positioning pins are symmetrically arranged at the edge of the top of the positioning plate, a plurality of positioning holes are arranged on the positioning plate, and a plurality of positioning pins are symmetrically arranged on the positioning plate. And steel balls are placed in the positioning holes. According to the utility model, the parallelism and the inner diameter of the product are measured by taking the contour of the tool as a reference, the parallelism and the inner diameter of the product are synchronously detected, the detection efficiency is improved, whether the handle part of the product is missed to be processed can be detected, and the practicability of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to detection device technical field, concretely is a kind of detection tool for cam parallelism and inner diameter. BACKGROUND

[0002] Cam is the key component for controlling movement in many mechanical equipment, such as internal combustion engine, automatic machinery etc. Cam parallelism directly affects its contact and movement cooperation with driven member (such as tappet, push rod etc.), in turn affects the movement precision and performance of entire mechanical system, if cam parallelism is not good, it can lead to uneven contact pressure between cam and driven member, increase local wear, shorten component service life, and possibly cause mechanical failure. Cam inner diameter size directly affects its installation and cooperation precision, in mechanical design, cam usually needs to cooperate with shaft or other components accurately, and size deviation of inner diameter can lead to assembly difficulty or inaccuracy, affect the performance and reliability of mechanical whole. Therefore, cam usually needs to detect cam parallelism and inner diameter after processing.

[0003] In prior art, cam parallelism and inner diameter are detected separately, and efficiency is low. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is that cam parallelism and inner diameter are detected separately in prior art, and efficiency is low.

[0005] In order to solve the above problem, the technical scheme of the utility model is as follows: a kind of detection tool for cam parallelism and inner diameter, including bottom plate, the bottom plate top movable positioning plate is equipped, the positioning plate top is equipped with positioning seat, and the positioning plate top edge is symmetrically installed with two positioning pins, a plurality of positioning holes are opened in the positioning plate, and steel ball is placed in the positioning hole.

[0006] Further, the middle part of the bottom plate and positioning plate is equipped with through hole, and the bottom of the positioning seat is inserted into the through hole on the bottom plate.

[0007] Further, the positioning plate top edge is symmetrically equipped with two insertion holes, and the positioning pin is detachably inserted into the insertion hole.

[0008] Further, the positioning hole is equipped with three, and is annular array distribution.

[0009] Further, the thickness of the positioning plate is 8mm, and the diameter of the steel ball is 11.11mm.

[0010] The utility model discloses a detection device for cam parallelism and inner diameter has the advantages that the utility model with the profile of tool as the benchmark measures parallelism and product inner diameter, realizes the synchronous detection of parallelism and product inner diameter, improves the detection efficiency, can detect whether the product handle is processed at the same time, and improves the practicality of the device. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the top view of the utility model.

[0012] Figure 2 It is the sectional view of the utility model.

[0013] Figure 3 It is the workpiece structure and detection principle diagram of the utility model.

[0014] As shown in the figure: 1, bottom plate;2, positioning plate;3, positioning seat;4, positioning pin;5, steel ball. CONCRETE IMPLEMENTING METHOD

[0015] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only a part of the embodiments of the utility model, not all the embodiments;Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the utility model.

[0016] As Figure 1 And Figure 2 As shown in the figure, a detection tool for cam parallelism and inner diameter, including bottom plate 1, the positioning plate 2 is movably arranged on the bottom plate 1, the positioning seat 3 is arranged on the positioning plate 2, the middle part of the bottom plate 1 and positioning plate 2 is all set with through hole, the positioning seat 3 is inserted in the through hole on the bottom plate 1;Two positioning pins 4 are symmetrically installed on the top edge of the positioning plate 2, two insertion holes are symmetrically set on the top edge of the positioning plate 2, the positioning pin 4 can be detachably inserted in the insertion hole, three positioning holes in annular array distribution are set on the positioning plate 2, the steel ball 5 is placed in the positioning hole, the thickness of the positioning plate 2 is 8mm, and the diameter of the steel ball 5 is 11.11mm.

[0017] In specific use, the positioning seat 3 is inserted into the positioning plate 2 and the bottom plate 1, the limiting pin is inserted into the insertion hole in the positioning plate 2, and the steel ball is placed into the positioning block in the positioning plate 2, so that the assembly of the detection tool is completed.

[0018] When working, the tool is placed on the dial indicator detection table, the workpiece inner hole is sleeved on the outer side of the positioning seat 3, the product inner diameter is detected through the diameter of the positioning seat 3;The product handle is attached to the positioning pin 4, to detect whether the handle position is processed or not;If Figure 3As shown, after the handle position is attached, the steel ball enters the groove at an angle of 66.5°, which meets the drawing requirements, and the A, B, and D (1, 2, and 3) references are completed in the preparation stage. The dial indicator pointer is pointed to the measured surface, and a positioning pin 4 is pushed to rotate, and the rotation of the other side ensures that the D (1, 2, and 3) angle is 66.5°, and whether the parallelism is qualified is judged.

[0019] The detection tool measures the parallelism and the product inner diameter based on the profile of the tool, realizes synchronous detection of the parallelism and the product inner diameter, improves the detection efficiency, and can detect whether the product handle is processed or not, thereby improving the practicability of the device.

[0020] The un-disclosed parts in the utility model are all prior art, and the specific structure and working principle are not described again.

[0021] It should be noted that, in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0022] Although embodiments of the utility model have been shown and described, it will be apparent to those having ordinary skill in the art that a number of changes, modifications, replacements, and variations of the embodiments can be made without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

[0023] The utility model and its implementation have been described above, and this description is not restrictive, and the embodiments shown in the drawings are only one of the embodiments of the utility model, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired by it, without departing from the creative purpose of the utility model, without creative design, similar structure and embodiments of the technical scheme can be designed, which should belong to the protection scope of the utility model.

Claims

1. A tooling for cam parallelism and bore detection characterized by: The utility model provides a positioning device, including bottom plate (1), the positioning plate (2) is movably arranged above the bottom plate (1), the positioning seat (3) is arranged above the positioning plate (2), and two positioning pins (4) are symmetrically installed at the top edge of the positioning plate (2), a plurality of positioning holes are formed in the positioning plate (2), and a steel ball (5) is placed in the positioning hole.

2. The tooling for detecting cam parallelism and inner diameter according to claim 1, wherein: The middle part of the bottom plate (1) and the positioning plate (2) is provided with a through hole, and the bottom of the positioning seat (3) is inserted into the through hole on the bottom plate (1).

3. The tooling for detecting cam parallelism and inner diameter according to claim 1, wherein: Two insertion holes are symmetrically formed in the top edge of the positioning plate (2), and the positioning pin (4) is detachably inserted into the insertion hole.

4. The tooling for detecting cam parallelism and inner diameter of claim 1, wherein: The positioning hole is provided with three and is arranged in a ring array.

5. The tooling for cam parallelism and bore detection of claim 1, wherein: The thickness of the positioning plate (2) is 8mm, and the diameter of the steel ball (5) is 11.11mm.

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