Three-coordinate detection clamping device for cylindrical parts

Abstract

The utility model relates to a kind of cylindrical part three-coordinate detection clamping devices, it contains mounting plate and bottom plate, mounting plate is fixed on bottom plate by bolt;Guide rail is fixed on bottom plate by bolt;Slider groove slides on guide rail;Cylindrical slider and slider groove are sliding slot cooperation;Positioning stand is nested in cylindrical slider by pin hole.The application has five parts positioning modules, and there are auxiliary positioning blocks with arc parts, part module, can clamp 1-5 cylindrical parts, parts are fixed in module, three coordinates establish positioning reference on fixed plate, five parts can be accurately positioned.It is independent individual by establishing sub-coordinate system to each part, and is evaluated separately;Save a lot of manpower, time and machine cost.

Description

Technical Field

[0001] This utility model relates to positioning technology for three-coordinate measuring machines (CCMs), specifically, it is a method for simultaneously measuring any number of cylindrical parts, from 1 to 5. Background Technology

[0002] Currently, cylindrical parts are clamped using V-groove fixtures, one part at a time. For each part, the coordinate system must be manually established during coordinate measuring machine (CMM) measurement, which is time-consuming, labor-intensive, error-prone, and lacks measurement stability. As the measurement workload gradually increases, it becomes impossible to complete the daily measurement work on time. Utility Model Content

[0003] The purpose of this invention is to overcome existing measurement methods and provide a three-coordinate measuring and clamping device for cylindrical parts.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A coordinate measuring machine (CMM) clamping device for cylindrical parts includes a mounting plate and a base plate. The mounting plate is fixed to the base plate by bolts. A guide rail is fixed to the base plate by bolts. A slider groove slides on the guide rail. The cylindrical slider and the slider groove are in a sliding groove fit. A positioning column is nested in the cylindrical slider through a pin hole.

[0006] The mounting plate is a mounting plate with five V-grooves.

[0007] The five pressure plates are connected to the mounting plate with five V-grooves by spring-loaded bolts.

[0008] The positioning column is nested on the cylindrical slider through a pin hole, and can be freely removed and placed;

[0009] The cylindrical slider and the slider groove are fitted together by a sliding groove, allowing for movement;

[0010] The slider groove slides on the guide rail, and the sliding range is controlled by dead-point pins at both ends.

[0011] By comparing the dimensions of parts measured by a coordinate measuring machine (CMM), the width of the V-groove must not exceed 8mm to ensure compatibility with all cylindrical parts requiring CMM measurement. On the far right side of the V-groove mounting plate (e.g., ... Figure 1 (As shown) There is a 20mm space as the coordinate system position.

[0012] The V-groove pressure plate needs to be drilled and bolted for tightening and adjustment, so the width cannot be less than 8mm. However, in actual measurement, a measuring element of a part is blocked by the 8mm pressure plate. In order to avoid the sampling point, a 2mm groove is opened on one side of the pressure plate.

[0013] When measuring parts with curved surfaces, select a suitable curved positioning sleeve based on the size of the curve and fit it onto the cylindrical slider. Move the positioning column along the guide rail to the part's position, push the slider forward to align the curved surface of the positioning sleeve with the curved surface of the part, tighten the pressure plate, and then push the slider backward along the guide rail to the next part's position. Repeat this process until all parts are clamped. Then move the positioning column to the far right (e.g., ...). Figure 1 Show).

[0014] Compared with the prior art, the positive effects of this utility model are:

[0015] For the first time, multiple positioning can be achieved in a single clamping, and multiple results can be obtained from a single measurement. Multiple parts are evaluated according to the same coordinate system, resulting in high measurement stability.

[0016] This application includes five part positioning modules and an auxiliary positioning block for arc-shaped parts. Each part module can hold 1-5 cylindrical parts, which are fixed within the module. A coordinate measuring machine (CMM) establishes a positioning reference on a fixed plate, enabling precise positioning of all five parts. Furthermore, by establishing a sub-coordinate system for each part, each part becomes an independent entity, allowing for individual evaluation. This replaces 90% of existing methods for inspecting cylindrical parts, saving significant manpower, time, and machine costs. As a novel tooling and measurement method, it pioneers a cylindrical part positioning mechanism and a CMM measurement method. It is scalable and replicable. Attached Figure Description

[0017] Figure 1 Positioning fixture diagram Figure 1 ;

[0018] Figure 2 Positioning fixture diagram Figure 2 ;

[0019] The labels in the attached diagram are:

[0020] 1. Mounting plate, 2. Pressure plate, 3. Positioning column, 4. Cylindrical slider, 5. Slider groove, 6. Base plate, 7. Guide rail. Detailed Implementation

[0021] The following provides a detailed implementation of the positioning and detection device for cylindrical parts based on the present invention.

[0022] Example 1

[0023] Please refer to the attached drawings. A three-coordinate measuring and clamping device for cylindrical parts includes a mounting plate and a base plate. The mounting plate is fixed to the base plate 6 by bolts. The guide rail is fixed to the base plate by bolts. The slider groove slides on the guide rail 7. The cylindrical slider and the slider groove 5 are in a sliding groove fit. The positioning column 3 is nested in the cylindrical slider 4 through a pin hole.

[0024] Mounting plate 1 is a mounting plate with five V-grooves.

[0025] The five pressure plates 2 are connected to the mounting plate with five V-grooves by spring-loaded bolts.

[0026] The workflow for this application is as follows:

[0027] Process 1: Five cylindrical parts are fixed in five V-grooves;

[0028] Step 2: Manually roughen the positioning coordinate system at the protruding position of the mounting plate;

[0029] Step 3: The coordinate measuring machine (CMM) performs the test according to the pre-written program and generates a report.

[0030] The above description is merely an embodiment of this utility model. It should be noted that for inspection personnel who have received coordinate measuring machine (CMM) training, programs can be written for the parts to be inspected within this framework. Such program writing should also be considered within the protection scope of this utility model.

Claims

1. A three-coordinate detection clamping device for a cylindrical part, characterized in that, It contains the mounting plate and the bottom plate, the mounting plate is fixed on the bottom plate by bolt; the guide rail is fixed on the bottom plate by bolt; the slider groove slides on the guide rail; the cylindrical slider is matched with the slider groove; the positioning column is nested in the cylindrical slider through the pin hole.

2. The three-coordinate detection clamping device for cylindrical parts of claim 1, wherein, The mounting plate is a mounting plate with five V-shaped grooves.

3. The three-coordinate detection clamping device for cylindrical parts of claim 2, wherein, Five pressing plates are connected with the mounting plate with five V-shaped grooves through bolts with springs.

Images