Detection device and method for high-precision small-angle inclined plane guide rail of box-type part

Abstract

The invention relates to a detection device and method for a high-precision small-angle bevel guide rail of a box-type part. The device comprises a detection seat and a plug plate, the detection seat comprises a base, a supporting seat, a supporting pin, a substrate, a measuring plate and a supporting plate. Two substrates are symmetrically arranged at the lower part of the detection seat, the inclination of the substrates is consistent with that of a part, and measuring plates are symmetrically arranged at the upper part of the detection seat. The plug plate is used for detecting the gap between the upper end face of the part and the measuring plate of the detection seat, if the go-end part of the plug plate can pass through the gap and the no-go-end part of the plug plate cannot pass through the gap, the bevel guide rail of the part is qualified, otherwise, the bevel guide rail is unqualified. The device is simple in structure, stable, reliable, easy to maintain, convenient to operate and high in detection precision, can accurately and effectively judge whether the high-precision small-angle inclined plane guide rail is qualified or not quickly, can meet the requirement for quick detection of the high-precision small-angle inclined plane guide rail of a box-type part in batch production, and guarantees the precision requirement of a product.

Description

Technical Field

[0001] The present invention belongs to the field of mechanical parts measurement, and specifically relates to a detection device and method for high-precision small-angle inclined surface guide rails of box-type parts, and more particularly to a detection device and method for quickly and accurately detecting high-precision small-angle inclined surface guide rails in box-type structural parts. Background Art

[0002] When processing a hexahedral box-type structure, there is a high-precision small-angle bevel guide on each side of one of the sides, with a slope in the range of 1.5° to 2°. When assembling this part with its mating part, the small-angle bevel guides of the two parts are required to fit completely without gaps, and the two parts must move up and down along the guide. Inaccurate measurement of the small-angle bevel guide will lead to insufficient fitting, causing the part to get stuck and affecting the firing of the product. At present, the domestic machinery industry mainly uses a three-coordinate measuring instrument and a gauge combined with a sample column measurement method to detect bevels. The above two methods are not suitable for batch testing of this high-precision small-angle bevel guide, which is time-consuming and labor-intensive. The purchase of a three-coordinate measuring instrument requires a large investment. Therefore, it is necessary to design a set of special detection methods to achieve fast, efficient and accurate detection of high-precision small-angle bevel guides. Summary of the invention

[0003] The present invention provides a detection method for high-precision small-angle inclined surface guide rails for box-type parts. The technical problem to be solved is: solving the problem of inaccurate detection of high-precision small-angle inclined surface guide rails, and being able to quickly make correct and effective judgments on whether the high-precision small-angle inclined surface guide rails are qualified.

[0004] In order to solve the above technical problems, the present invention provides a detection device for high-precision small-angle inclined guide rails of box-type parts, characterized in that: it includes a detection seat and a plug plate; the detection seat includes a base 1, a support pin 3, a base plate, a measuring plate 6, and a support plate 7; two base plates are symmetrically arranged on the left and right sides of the upper end of the base, and the inclination of the base plate is consistent with the inclination of the part inclined surface. The support 2 is fixed to the front part of the base 1, and a support pin 3 is axially provided on the support 2 for limiting the front end surface of the part; a measuring plate 6 is fixed to the lower surface of the top of the support 2, and the plug plate is used to detect the gap between the part and the measuring plate 6.

[0005] A method for detecting a high-precision small-angle inclined rail of a box-type part, characterized in that the specific steps are as follows:

[0006] S1. Place the processed part with the inclined surface facing downward on the substrate, and the side surface adjacent to the inclined surface coincides with the reference surface of the detection seat. At this time, the inclined surfaces on both sides of the part coincide with the inclined surfaces of the two substrates respectively, the side surface adjacent to the inclined surface on one side of the part coincides with the reference surface of the substrate, the front part of the part coincides with the reference surface of the support pin, and the upper end surface of the part is in a horizontal placement state;

[0007] S2. Use a plug plate to detect the gap between the upper end surface of the part and the detection seat measuring plate. If the through end of the plug plate can pass through the gap, but the stop end of the plug plate cannot pass through the gap, it indicates that the inclined surface of the part is qualified, otherwise it is unqualified.

[0008] Beneficial effects: The invention has a simple structure, is stable and reliable, is easy to maintain, is easy to operate, and has high detection accuracy. It can quickly make a correct and effective judgment on whether the high-precision small-angle inclined guide rail is qualified. It can meet the rapid detection of high-precision small-angle inclined guide rails for box-type parts during mass production and ensure the accuracy requirements of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of the overall structure of the detection device;

[0010] Figure 2 This is a schematic diagram of the structure of the base 1 of the detection device;

[0011] Figure 3 This is a schematic diagram of the structure of the support 2 of this detection device:

[0012] Figure 4 This is a schematic diagram of the structure of the support pin 3 of the detection device;

[0013] Figure 5 This is a schematic diagram of the structure of the substrate 4 of the detection device;

[0014] Figure 6 It is a schematic diagram of the structure of the substrate 5 of the detection device.

[0015] Figure 7 This is a schematic diagram of the structure of the measuring plate 6 of the detection device;

[0016] Figure 8 This is a schematic structural diagram of the support plate 7 of the detection device.

[0017] Fig. 9 This is a schematic diagram of the plug plate structure of this detection device. DETAILED DESCRIPTION

[0018] In order to make the purpose, content and advantages of the present invention more clear, the specific implementation methods of the present invention are further described in detail below.

[0019] The present invention proposes a detection device for high-precision small-angle inclined guide rails of box-type parts, comprising a detection seat and a plug plate; Figure 1 As shown, place the part with the inclined surface facing downward into the testing seat;

[0020] The detection seat includes a base 1, a support 2, a support pin 3, a left base plate 4, a right base plate 5, a measuring plate 6, and a support plate 7; two base plates are symmetrically arranged on the left and right sides of the upper end of the base, and the inclination of the base plate is consistent with the inclination of the part. The support 2 is fixed to the front part of the base 1, and a support pin 3 is axially arranged on the support 2 for limiting the front end surface of the box;

[0021] A measuring plate 6 is fixed on the lower surface of the top of the support 2; two support plates 7 are symmetrically fixed on both sides of the base and the support 2 to support and fix the base 1 and the support 2.

[0022] The base 1 is used to provide stable support for the components installed thereon, and is a rectangular plate-like structure. The upper end surface thereof is processed with a boss surface, and the boss surface is processed with threaded holes and positioning pin holes for installing the support 2 and the base plate; the side surfaces thereof are opened with threaded holes and positioning pin holes for installing the support plates 7 on both sides to support and fix the base 1 and the support 2.

[0023] The support 2 is a 90° L-shaped structure, with a through hole and a positioning pin hole designed at the bottom, connected to the base 1. The inner side of the upper part is processed with a threaded hole for mounting the measuring plate 6, and the two sides of the upper part are designed with threaded holes and pin holes for mounting the support plate 7. The inner side of the front end is designed with a positioning pin hole for mounting the support pin 3, which is used to locate the end face of the part during inspection.

[0024] The support pin 3 is installed on the support 2 and serves as the reference fitting surface of the front part of the part.

[0025] The left base plate 4 and the right base plate 5 are designed with mounting holes, which are step holes for connection and positioning with the base 1. The angle of the bevel is consistent with the angle of the bevel guide rail of the part, and it fits with the bevel guide rails on both sides of the part during inspection. The right base plate 5 is processed with a reference surface B perpendicular to the bevel, which is used to fit with the side reference surface of the part.

[0026] The measuring plate 6 is designed with mounting holes and positioning pin holes. The holes are step holes and are used to be installed on the inner convex surface of the upper end of the support 2. After the parts are installed in the detection seat, the gap between the parts and the measuring plate 6 is detected with a plug plate.

[0027] Mounting holes and positioning pin holes are designed at the upper and lower ends of the support plate 7 for connection and positioning with the base 1 and the support 2, and for reinforcing the detection seat.

[0028] The plug plate is a rectangular plate structure, which is used to control the gap between the part and the measuring plate, and detect the correctness of the high-precision small-angle inclined guide rail of the part. Its two ends are the through end and the stop end. The through end of the plug plate passes through the gap between the part and the measuring plate 6, while the stop end cannot pass through the gap, indicating that the part is qualified, otherwise, it is unqualified.

[0029] When testing the inclined guide rail of a part, the specific steps are as follows:

[0030] S1. Place the processed part with the inclined surface guide rail facing downward on the lower substrate of the base, and the side adjacent to the inclined surface coincides with the reference surface of the detection seat. At this time, the inclined surface guide rails on both sides of the part coincide with the inclined surfaces of the left substrates 4 and 5 on the detection seat respectively, the side adjacent to the inclined surface guide rail on the right side of the part coincides with the reference surface B of the right substrate 5 on the detection seat, the front of the part coincides with the reference surface C of the support pin 3, and the upper end surface of the part is in a horizontal placement state.

[0031] S2. Use a plug plate to detect the gap between the upper end surface of the part and the detection seat measuring plate. If the through end of the plug plate can pass through the gap, but the stop end of the plug plate cannot pass through the gap, it indicates that the inclined surface guide rail of the part is qualified, otherwise it is unqualified.

[0032] The detection device of the present invention has a simple structure, is easy to operate, and has high detection accuracy. It can meet the needs of rapid detection of high-precision, small-angle inclined rails of box-type parts during mass production, thereby ensuring the accuracy requirements of the products.

[0033] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A detection device for high-precision small-angle inclined rails of box-type parts, characterized by: It includes a detection seat and a plug plate; the detection seat includes a base 1, a support pin 3, a base plate, a measuring plate 6, and a support plate 7; two base plates are symmetrically arranged on the left and right sides of the upper end of the base, and the inclination of the base plate is consistent with the inclination of the part inclined surface. The support 2 is fixed to the front part of the base 1, and a support pin 3 is axially arranged on the support 2 for limiting the front end surface of the part; a measuring plate 6 is fixed to the lower surface of the top of the support 2, and the plug plate is used to detect the gap between the part and the measuring plate 6.

2. The detection device for high-precision small-angle inclined rails of box-type parts according to claim 1 is characterized in that: Two support plates 7 are symmetrically fixed on both sides of the base and the support 2 to support and fix the base 1 and the support 2.

3. The detection device for high-precision small-angle inclined guide rails of box-type parts according to claim 1 is characterized in that: The part is placed on the base plate with the bevel side facing downwards.

4. The detection device for high-precision small-angle inclined guide rails of box-type parts according to claim 1 is characterized in that: During the inspection, the inclined surface of the substrate fits with the inclined surfaces on both sides of the part.

5. The detection device for high-precision small-angle inclined guide rails of box-type parts according to claim 1 is characterized in that: A reference surface B perpendicular to the inclined surface is processed on one of the base plates for fitting with the side reference surface of the part.

6. The detection device for high-precision small-angle inclined guide rails of box-type parts according to claim 1 is characterized in that: The plug plate is a rectangular plate structure, which is used to control the gap between the part and the measuring plate and detect the correctness of the high-precision small-angle inclined guide rail of the part.

7. The detection device for high-precision small-angle inclined guide rails of box-type parts according to claim 1 is characterized in that: The support 2 is a 90° L-shaped structure.

8. The detection device for high-precision small-angle inclined guide rails of box-type parts according to claim 1 is characterized in that: The base 1 is a rectangular plate-like structure.

9. The detection device for high-precision small-angle inclined guide rails of box-type parts according to claim 1 is characterized in that: The heads at both ends of the plug plate are respectively a through end and a stop end.

10. A method for detecting high-precision small-angle inclined rails of box-type parts, characterized in that: The detection device for the high-precision small-angle inclined guide rail of the box-type parts as claimed in claim 1 is used, and the specific steps are as follows: S1. Place the processed part with the inclined surface facing downward on the substrate, and the side surface adjacent to the inclined surface coincides with the reference surface of the detection seat. At this time, the inclined surfaces on both sides of the part coincide with the inclined surfaces of the two substrates respectively, the side surface adjacent to the inclined surface on one side of the part coincides with the reference surface of the substrate, the front part of the part coincides with the reference surface of the support pin, and the upper end surface of the part is in a horizontal placement state; S2. Use a plug plate to detect the gap between the upper end surface of the part and the detection seat measuring plate. If the through end of the plug plate can pass through the gap, but the stop end of the plug plate cannot pass through the gap, it indicates that the inclined surface of the part is qualified, otherwise it is unqualified.

Images