A simple and fast parallelism detection device

Abstract

The utility model discloses a simple and rapid parallelism detection device, utilize the dial test micrometer fixed block to two digital display dial test micrometer fixed, and the pilot block detects the orientation, and through the calibration device to the dial test micrometer calibration zero, and the digital display dial test micrometer detects the height difference of two points on the surface that needs to measure and the dial test micrometer fixed block bottom surface, detects parallelism to realize the rapid detection of parallelism.

Description

Technical Field

[0001] This utility model belongs to the field of parallelism detection technology, specifically relating to a simple and rapid parallelism detection device. Background Technology

[0002] Parallelism inspection mainly relies on coordinate measuring machines (CMMs). However, CMMs are not only costly but also inefficient. For parts that require full inspection of parallelism dimensions, CMMs cannot quickly complete the parallelism inspection, resulting in low production efficiency and high costs.

[0003] Chinese utility model patent CN203940816U discloses a calibration device for calibrating the parallelism of a straightedge under test. The calibration device includes: a base placed on a flat working surface for holding the straightedge; a lifting device vertically mounted on the base; a support connected at one end to the lifting device, movable up and down along the lifting device; and a digital micrometer fixedly mounted at the other end of the support, with its probe contacting the working surface of the straightedge during operation. This utility model utilizes a digital micrometer, resulting in high measurement accuracy and convenient reading. Furthermore, this utility model features a simple structure, is easy to carry, convenient to operate, and has good stability, while also shortening testing time and improving work efficiency. However, this structure cannot perform internal testing of the device. Utility Model Content

[0004] To address the aforementioned problems, this invention aims to provide a simple and rapid parallelism detection device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a simple and rapid parallelism testing device, comprising a pair of digital micrometers, the digital micrometers being arranged side by side on a fixed block, a calibration device being connected to the lower end face of the fixed block, and a guide block being connected to the lower end face of the fixed block, the lower end face of the guide block and the base of the calibration device forming a testing space, the measuring rod of the digital micrometers passing through the guide block and extending into the testing space to test the parallelism.

[0006] Preferably, the fixing block has a through hole and a mounting hole, and the guide block has a through groove, with the through hole and the through groove corresponding to each other.

[0007] Preferably, the measuring rod of the digital micrometer passes through the through hole of the fixing block and the through groove of the guide block in sequence, and a positioning pin passes through the mounting hole of the fixing block to connect it with the guide block.

[0008] Preferably, a locking block is provided at the connection between the digital dial indicator and the fixed block.

[0009] Preferably, a first locking screw and a second locking screw are respectively provided on the side and top of the fixing block to fix the digital dial indicator.

[0010] Preferably, the calibration device includes a base. A pair of leveling blocks are provided on the base, and the leveling blocks are fixed to the base by a third locking screw.

[0011] Preferably, the lower end face of the fixing block is placed on the equal-height block.

[0012] Compared with the prior art, this utility model has the following advantages: two digital dial indicators are fixed by a dial indicator fixing block, and a guide block is used for detection and guidance. The dial indicators are calibrated to zero by a calibration device. The parallelism is detected by measuring the height difference between two points on the digital dial indicator surface and the bottom surface of the dial indicator fixing block. This enables rapid detection of parallelism, improves detection efficiency, and reduces detection costs. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the specific embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a three-dimensional schematic diagram of the detection device in this utility model. Figure 1 ;

[0015] Figure 2 This is a three-dimensional schematic diagram of the detection device in this utility model. Figure 2 ;

[0016] Figure 3 This is a partial three-dimensional schematic diagram of the detection device in this utility model. Figure 1 ;

[0017] Figure 4 This is a partial three-dimensional schematic diagram of the detection device in this utility model. Figure 2 ;

[0018] Figure 5 This is a three-dimensional schematic diagram of the product being tested by the testing device in this utility model;

[0019] Figure 6 This is a schematic diagram of the calibration device for the detection device in this utility model;

[0020] In the diagram, 1-Digital dial indicator; 2-Locking block; 3-Fixing block; 4-Positioning pin; 5-First locking screw; 6-Guide block; 7-Second locking screw; 8-Calibration device; 81-Base; 82-Equalizing block; 83-Third locking screw. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. However, it should not be construed that the scope of the subject matter of the present invention is limited to the following embodiments. Any modifications, substitutions and alterations made based on ordinary technical knowledge and conventional means in the art without departing from the above-described technical concept of the present invention are included within the scope of the present invention.

[0022] Reference Figure 1 The digital micrometer 1 consists of, from top to bottom, a body, a bushing, a side rod, and a probe. The fixing block 3 is rectangular with two through slots in the center. The guide block 6 is disc-shaped with a large through slot in the center. The large through slot of the guide block 6 covers the two through slots of the fixing block and is aligned on the same center line. The side rod of the digital micrometer 1 passes through the through slots of the fixing block 3 and the large through slot of the guide block 6. The lower end face of the bushing of the digital micrometer 1 contacts the upper end face of the fixing block 3, and a locking block 2 is provided at the contact point.

[0023] The base of the calibration device 8 is a rectangular plate, on which a pair of equal-height blocks 82, also rectangular plates, are fixed by a third locking screw 83. The lower end face of the fixing block 3 is placed on the equal-height blocks 82, and the two digital micrometers 1 are fixed by the fixing blocks 3. The guide block 6 provides guidance for the test. The calibration device 8 calibrates and zeroes the meters. The digital micrometer 1 measures the height difference between two points on the measurement surface and the bottom surface of the fixing block 3 to detect the parallelism of the two planes, thus achieving rapid parallelism detection. This replaces coordinate measuring machine (CMM) testing, improving detection efficiency and reducing detection costs.

[0024] The foregoing has provided a detailed description of a simple and rapid parallelism testing device provided by this utility model. Specific examples have been used to illustrate the structure and working principle of this utility model. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims of this utility model.

Claims

1. A simple and rapid parallelism detection device, characterized in that: It includes a pair of digital micrometers (1), which are arranged side by side on a fixed block (3). A calibration device (8) is connected to the lower end face of the fixed block (3). A guide block (6) is also connected to the lower end face of the fixed block (3). The lower end face of the guide block (6) and the base (81) of the calibration device (8) form a detection space. The measuring rod of the digital micrometer (1) passes through the guide block (6) and extends into the detection space to detect the parallelism.

2. The simple and rapid parallelism detection device according to claim 1, characterized in that: The fixing block (3) has through holes and mounting holes, and the guide block (6) has through grooves, with the through holes and through grooves corresponding to each other.

3. The simple and rapid parallelism detection device according to claim 1 or 2, characterized in that: The measuring rod of the digital micrometer (1) passes through the through hole of the fixing block (3) and the through groove of the guide block (6) in sequence. A positioning pin (4) is also provided to pass through the mounting hole of the fixing block (3) to connect it with the guide block (6).

4. The simple and rapid parallelism detection device according to claim 1, characterized in that: A locking block (2) is provided at the connection between the digital dial indicator (1) and the fixing block (3).

5. The simple and rapid parallelism detection device according to claim 1, characterized in that: The digital dial indicator (1) is fixed by a first locking screw (5) and a second locking screw (7) on the side and top of the fixing block (3).

6. The simple and rapid parallelism detection device according to claim 1, characterized in that: The calibration device (8) includes a base (81) and a pair of leveling blocks (82) are provided on the base (81). The leveling blocks (82) are fixed on the base (81) by a third locking screw (83).

7. The simple and rapid parallelism detection device according to claim 1, characterized in that: The lower end face of the fixed block (3) is placed on the equal height block (82).

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