Perpendicularity detection tool

Abstract

The utility model relates to the technical field of casting detection, and particularly discloses a verticality detection tool. The device comprises a detection platform supported by stand columns, two detection columns are arranged on the detection platform, detection holes are formed in the outer sides of the two detection columns respectively, a digital display dial indicator is arranged below each detection hole, an elastic probe of the digital display dial indicator extends out of the detection hole by 1-2 mm, and the digital display dial indicator is connected with a digital display instrument through a wire. According to the utility model, when hole verticality detection is carried out, the detection time of a single piece is 10-15s, compared with three-coordinate detection, the efficiency is improved by 30 times, 100% detection of the hole verticality of a product can be realized, outflow of products with out-of-tolerance hole verticality is effectively restrained, and the risk of production line shutdown brought to customers is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of casting detection, in particular to a perpendicularity detection tooling. Background Technique

[0002] At present, the drilling depth requirement for the bearing seat of the automotive lower cylinder block is 60 mm, and the perpendicularity standard requirement for the hole is ±0.2 mm. Excessive perpendicularity deviation of the hole is likely to cause assembly failures in the automotive chassis system and production line shutdowns, resulting in significant losses to the host factory. There are many influencing factors causing excessive perpendicularity deviation of the hole, such as wear of the drilling tool, incorrect setting of machining parameters such as feed and speed, uneven placement of the workpiece, chip removal failure and chip jamming, etc., which cannot be completely eliminated one by one. Therefore, products with excessive perpendicularity deviation of the hole often occur randomly. So, the conventional first, middle and final inspections cannot prevent the flow of defective products with excessive perpendicularity deviation of the hole. To effectively prevent defective products with excessive perpendicularity deviation of the hole from flowing to customers and avoid losses caused by production line shutdowns to customers, factories often adopt the method of 100% inspection. However, the conventional detection method is coordinate measuring machine detection, which is inefficient and only applicable to the sampling inspection of sample products and cannot cope with the detection of batch products.

[0003] Randomly generated defective products with excessive perpendicularity deviation of the hole cannot be detected by conventional detection means and detection frequencies, bringing risks of production line shutdowns to customers. Summary of the Invention

[0004] The utility model aims to make up for the defects of the prior art and provides a perpendicularity detection tooling with high precision.

[0005] The utility model is realized by the following technical solutions:

[0006] A perpendicularity detection tooling, characterized in that it includes a detection platform supported by columns. Two detection columns are arranged on the detection platform. Detection holes are respectively opened on the outer sides of the two detection columns. A digital display micrometer is arranged below each detection hole. The elastic probe of the digital display micrometer extends 1 - 2 mm out of the detection hole. The digital display micrometer is connected to a digital display instrument through a wire.

[0007] The digital display instrument is provided with a display screen and an audible and visual alarm.

[0008] The detection columns are fixed on the detection platform by bolts.

[0009] The perpendicularity of the detection columns is ≤0.02 mm.

[0010] It further includes a base. There are four columns, and the four columns are fixed on the base.

[0011] The flatness of the lower bottom surface of the base is ≤0.5 mm.

[0012] The distance from the center of the detection hole to the central axis of the detection column is 10 mm.

[0013] The beneficial effects of the present utility model are as follows:

[0014] By designing the installation positions of the hole detection columns and the positions of the detection holes on the detection platform of the present utility model, the detected hole perpendicularity data differs from the coordinate measuring machine detection data by ±0.01 mm, meeting the detection requirements for the perpendicularity of the product holes.

[0015] When the present utility model performs hole perpendicularity detection, the single-piece detection time is 10 - 15 s. Compared with the coordinate measuring machine, the detection efficiency is increased by 30 times. It can achieve 100% detection of the perpendicularity of the product holes, effectively preventing the outflow of products with out-of-tolerance hole perpendicularity and avoiding the risk of production line downtime for customers. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following further describes the present utility model in conjunction with the drawings:

[0017] Figure 1 is the front view structural schematic diagram of the present utility model;

[0018] Figure 2 is Figure 1 the cross-sectional structural schematic diagram in the A - A direction of

[0019] Figure 3 is the front view structural schematic diagram during the use of the present utility model.

[0020] In the figure, 1 is the base, 2 is the column, 3 is the detection platform, 4 is the detection column, 5 is the detection hole, 6 is the bearing seat, 7 is the digital display micrometer, 8 is the elastic probe, 9 is the bolt, 10 is the digital display instrument, 11 is the display screen, and 12 is the audible and visual alarm. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The attached drawings are specific embodiments of the present utility model. As Figures 1 to 3As shown in the figure, this verticality detection tooling includes a base 1. The shape of the base 1 is a flat plate, which should be larger and heavier to play a role in stabilizing the entire device and enabling the detection operation to proceed smoothly. The flatness of the lower bottom surface of the base 1 is not greater than 0.5 mm. Four upright columns 2 arranged in a rectangle are fixedly installed on the base 1. A detection platform 3 is fixedly installed at the upper ends of the four upright columns 2. Two detection columns 4 are fixedly installed on the detection platform 3 through bolts 9. By tightening the bolts 9, the stability of the self-verticality of the two detection columns 4 can be adjusted to avoid unqualified detection products caused by their own stability. The verticality of the detection columns 4 is not greater than 0.02 mm. Detection holes 5 are respectively opened on the detection platform 3 on the outer sides of the two detection columns 4. The distance from the center of the detection hole 5 to the central axis of the detection column 4 is 10 mm. A digital display micrometer 7 is installed below each detection hole 5. The elastic probe 8 of the digital display micrometer 7 extends out of the detection hole 5, and the extended length is 1-2 mm. The digital display micrometer 7 is connected to a digital display instrument 10 through a wire, and the digital display instrument 10 is placed on the base 1.

[0022] A display screen 11 and an audible and visual alarm 12 are provided on the digital display instrument 10.

[0023] The usage process is as follows:

[0024] Place the bearing housing 6 on the detection platform 3, so that the two detection columns 4 respectively pass through the two holes to be detected of the bearing housing 6 until the bottom surface of the bearing housing 6 contacts the detection platform 3. At this time, the bottom surface of the bearing housing 6 presses the elastic probe 8 at the top of the digital display micrometer 7. After being pressed, the elastic probe 8 contracts and transmits the contraction data to the digital display micrometer 7. The detection data is displayed on the display screen of the digital display micrometer 7. At the same time, the detected data is transmitted to the digital display instrument 10 through a wire. The digital display instrument 10 feeds back the monitoring data exceeding the set value to the audible and visual alarm 12 after parameter setting. The audible and visual alarm 12 gives an alarm to remind the detection personnel that the hole verticality of the bearing housing 6 product to be detected is out of tolerance and scrapped. The entire operation process only takes 10-15 seconds to complete, which is simple and fast.

[0025] Except for the technical features described in the specification, the rest of the technical features are known technologies to those skilled in the art.

Claims

1. A verticality detection tool, characterized in that: The invention comprises a detection platform (3) supported by a column (2), wherein two detection columns (4) are arranged on the detection platform (3), and detection holes (5) are respectively opened on the outer sides of the two detection columns (4). A digital micrometer (7) is arranged below each detection hole (5), and an elastic probe (8) of the digital micrometer (7) protrudes from the detection hole (5) by 1-2 millimeters. The digital micrometer (7) is connected to a digital display instrument (10) via a wire.

2. The verticality detection tool according to claim 1 is characterized in that: The digital display (10) is provided with a display screen (11) and an audible and visual alarm (12).

3. The verticality detection tool according to claim 1 is characterized in that: The detection column (4) is fixed on the detection platform (3) by means of bolts (9).

4. The verticality detection tool according to claim 1 is characterized in that: The verticality of the detection column (4) is ≤0.02 mm.

5. The verticality detection tool according to claim 1 is characterized in that: It also comprises a base (1), and there are four upright posts (2), and the four upright posts (2) are fixed on the base (1).

6. The verticality detection tool according to claim 5 is characterized in that: The flatness of the bottom surface of the base (1) is ≤0.5 mm.

7. The verticality detection tool according to claim 1 is characterized in that: The distance from the center of the detection hole (5) to the central axis of the detection column (4) is 10 mm.

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