Reference multi-hole multi-curved-surface contour testing fixture
By designing a reference porous multi-surface contour inspection tool, using technical means such as angular positioning components and contour standard blocks, the problems of inaccurate measurement and low measurement efficiency in the existing technology are solved, and the workpiece is accurately positioned and efficiently measured, which is suitable for large-scale production.
Patent Information
- Application Number
- CN202421013909.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2025-03-25
- Estimated Expiration
- 2034-05-10
AI Technical Summary
When the existing three-coordinate measurement technology measures large workpieces with a three-dimensional porous and complex profile, the existence of a small reference plane and a long axis will cause inaccurate measurement, and the measurement will be cumbersome and time-consuming, inefficient, and it is not suitable for large-scale production.
A reference porous multi-surface contour detection tool is designed, including two sets of angular positioning components, three standard contour blocks, and three bases and measuring rods containing hole positions. Through the cooperation of the main positioning component and the angular positioning component, the workpiece is accurately positioned, and the hole position and contour of the workpiece are judged through the contour standard block and measuring rod.
It realizes accurate positioning and measurement of workpieces, simplifies the measurement process, reduces measurement errors, and improves measurement efficiency, so that non-professional personnel can also perform measurements, which is suitable for large-scale production.
Smart Images
Figure CN222670939U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mechanical processing, in particular to a reference multi-hole multi-curved surface profile gauge. Background Art
[0002] The existing measurement technology generally uses three-dimensional coordinate measurement for some large workpieces with multiple holes and complex contours. For the product shown in Figure 1, there are three holes, and four curved surface contours need to be measured. The position of the hole, the shape and position of the contour are controlled by the drawing requirements. The deviation of the hole position and the shape and position deviation of the contour will cause assembly interference. Since the reference surface of the workpiece in the drawing is very small, the center reference is the axis of the two holes. The small reference surface and the long axis will magnify small errors for the measurement of relatively large products, resulting in inaccurate measurement. In addition, three-coordinate measurement is very cumbersome, time-consuming, and inefficient, and is not suitable for large-scale production needs. Utility Model Content
[0003] The utility model provides a special reference multi-hole multi-curved surface profile gauge to solve the problems raised in the above background technology.
[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:
[0005] The reference multi-hole multi-curved surface profile gauge includes two sets of angular positioning components, three profile standard blocks, three bases with hole positions and measuring rods, wherein the positioning components are divided into a main positioning component and an angular positioning component;
[0006] The main positioning assembly includes a reference panel, a center reference A guide sleeve and a center reference A positioning shaft rod;
[0007] The angular positioning assembly comprises an angular positioning pin rod and an angular positioning guide sleeve;
[0008] The position of the guide sleeve in the angular positioning assembly and the main positioning assembly corresponds to the position of the workpiece positioning shaft and hole, and the angular positioning pin rod or the center reference A positioning shaft rod is inserted into the workpiece through the corresponding assembly guide sleeve, and the workpiece reference surface is close to the reference plane of the reference panel. At this time, the workpiece is accurately positioned and installed on the inspection fixture.
[0009] The further improvement of the technical solution of the utility model is that the contour standard block includes two groups of contour standard blocks for fixing different curved surfaces and a detachable curved surface contour standard block, and the contour standard block and the curved surface contour standard block are composed of a fixed contour standard block I, a fixed contour standard block II and an active contour standard block, and the positions of the fixed contour standard block I, the fixed contour standard block II and the active contour standard block correspond to the contour of the workpiece curved surface. Among them, the go-no-go gauge I, the go-no-go gauge II and the go-no-go gauge III close the gap between the contour standard block and the workpiece contour to determine whether the workpiece contour is qualified.
[0010] A further improvement of the technical solution of the utility model is that, in order to facilitate loading and unloading of workpieces, the utility model makes the contour standard block loadable and removable, and the movable contour standard block is fixed by a positioning pin.
[0011] The further improvement of the technical solution of the utility model is that the positions of the guide sleeve holes on the three bases with hole positions and the bases in the measuring rod correspond to the holes on the workpiece, and the bases are provided with hole position detection rods I and II. The hole position detection rods I and II measure the positions of the workpiece holes through the corresponding guide sleeve holes to determine whether the hole positions of the workpiece are qualified.
[0012] When using this inspection fixture to inspect the workpiece in the attached figure, just insert the center locating pin into the locating hole of the workpiece, press the locating surface of the workpiece against the angular locating surface, and press the workpiece with the pressure plate assembly. The position of the workpiece hole and contour can be judged by the go / no-go gauge and the measuring rod. Figure 2 shown.
[0013] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:
[0014] The utility model provides a reference multi-hole multi-curved surface contour gauge, a main positioning shaft guide hole and a positioning shaft pin rod, another positioning component comprises an angular positioning guide hole and a positioning pin rod, the position of the guide hole corresponds to the position of the workpiece positioning shaft and the hole, the positioning shaft pin rod or the positioning pin rod is respectively inserted into the workpiece through the corresponding guide sleeve, the workpiece reference surface is close to the plane reference, the workpiece is accurately positioned and installed on the gauge.
[0015] The utility model provides a reference multi-hole multi-curved surface contour gauge, and three go and no-go gauges respectively determine whether the workpiece contour is qualified through the gap between the contour standard block and the workpiece contour. In order to facilitate loading and unloading of workpieces, one of the contour standard blocks is made detachable and fixed with a positioning pin.
[0016] The utility model provides a special reference multi-hole multi-curved surface profile gauge. Three measuring rods measure the position of the workpiece hole through the corresponding guide sleeve hole to determine whether the hole position of the workpiece is qualified. This makes the original complex measurement simple and easy to operate. No professional measurement personnel are required, and only trained operators can measure. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0018] Figure 2 It is a cross-sectional view of the angular positioning assembly of the utility model;
[0019] Figure 3 It is a cross-sectional view of the main positioning component of the utility model.
[0020] In the figure: 1. angular positioning assembly; 2. movable contour standard block; 3. locating pin; 4. pressure plate assembly; 5. main positioning assembly; 6. go / no-go gauge I; 7. fixed contour standard block I; 8. φ6 hole position detection rod; 9. φ8 hole position detection rod; 10. go / no-go gauge II; 11. go / no-go gauge III; 12. workpiece; 13. fixed contour standard block II; 1-1. angular positioning pin rod; 1-2. angular positioning guide sleeve; 5-1. center axis datum A locating pin rod; 5-3. center axis datum A guide sleeve; 5-2. datum surface B plate. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] See also Figure 1-Figure 2 , the utility model provides a technical solution:
[0023] Embodiment 1: A reference multi-hole multi-curved surface contour gauge includes two sets of angular positioning components, three contour standard blocks, three bases with hole positions and measuring rods, and the positioning components are divided into a main positioning component 5 and an angular positioning component 1;
[0024] The main positioning assembly 5 includes a reference panel 5-2, a center reference A guide sleeve 5-3 and a center reference A positioning shaft rod 5-1;
[0025] The angular positioning assembly 1 comprises an angular positioning pin rod 1-1 and an angular positioning guide sleeve 1-2;
[0026] The position of the guide sleeves in the angular positioning assembly 1 and the main positioning assembly 5 corresponds to the position of the workpiece positioning shaft and hole, and the angular positioning pin rod 1-1 or the center reference A positioning shaft rod 5-1 is respectively inserted into the workpiece 12 through the corresponding assembly guide sleeves, and the reference surface of the workpiece 12 is close to the reference plane of the reference panel 5-2. At this time, the workpiece 12 is accurately positioned and installed on the inspection fixture.
[0027] The contour standard block includes two groups of contour standard blocks for fixing different curved surfaces and a detachable curved surface contour standard block. The contour standard block and the curved surface contour standard block are composed of a fixed contour standard block I7, a fixed contour standard block II13 and an active contour standard block 2. The positions of the fixed contour standard block I7, the fixed contour standard block II13 and the active contour standard block 2 correspond to the curved surface contour of the workpiece 12. Among them, the go and no-go gauge I6, the go and no-go gauge II10 and the go and no-go gauge III11 close the gap between the contour standard block and the workpiece contour to determine whether the workpiece contour is qualified.
[0028] Embodiment 2: Based on Embodiment 1:
[0029] In order to facilitate loading and unloading of workpieces, the utility model makes the contour standard block 2 loadable and unloadable, and the movable contour standard block 2 is fixed by the positioning pin 3.
[0030] Embodiment 3: Based on Embodiment 1 and Embodiment 2:
[0031] The positions of the three bases with hole positions and the guide sleeve holes on the bases of the measuring rods correspond to the holes on the workpiece, and the bases are provided with hole position detection rods I8 and II9. The hole position detection rods I8 and II9 measure the positions of the workpiece holes through the corresponding guide sleeve holes to determine whether the hole positions of the workpiece are qualified.
[0032] Working principle: Use this inspection tool to inspect the attached Figure 1 When measuring a workpiece, just insert the center locating pin into the locating hole of the workpiece, press the locating surface of the workpiece against the angular locating surface, and press the workpiece with the pressure plate assembly. Then, the position of the workpiece hole and contour can be judged to be qualified by the go / no-go gauge and measuring rod. Figure 2 shown.
[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
Claims
1. The benchmark multi-hole multi-curved surface profile gauge includes two sets of angular positioning components, three profile standard blocks, three bases with holes and measuring rods, and is characterized by: The positioning assembly is divided into a main positioning assembly (5) and an angular positioning assembly (1); The main positioning component (5) comprises a reference panel (5-2), a center reference A guide sleeve (5-3) and a center reference A positioning shaft rod (5-1); The angular positioning assembly (1) comprises an angular positioning pin rod (1-1) and an angular positioning guide sleeve (1-2); The positions of the guide sleeves in the angular positioning assembly (1) and the main positioning assembly (5) correspond to the positions of the workpiece positioning shaft and hole, the angular positioning pin rod (1-1) or the center reference A positioning shaft rod (5-1) is respectively inserted into the workpiece (12) through the corresponding assembly guide sleeves, and the reference surface of the workpiece (12) is closely attached to the reference plane of the reference panel (5-2).
2. The reference multi-hole multi-curved surface profile gauge according to claim 1, characterized in that: The contour standard blocks include two groups of contour standard blocks for fixing different curved surfaces and a detachable curved surface contour standard block. The contour standard blocks and the curved surface contour standard blocks are composed of a fixed contour standard block I (7), a fixed contour standard block II (13) and an active contour standard block (2). The positions of the fixed contour standard block I (7), the fixed contour standard block II (13) and the active contour standard block (2) correspond to the curved surface contour of the workpiece (12).
3. The reference multi-hole multi-curved surface profile gauge according to claim 2, characterized in that: The active profile standard block (2) is fixed by means of a positioning pin (3).
4. The reference multi-hole multi-curved surface profile gauge according to claim 1, characterized in that: The positions of the guide sleeve holes on the three bases with hole positions and the inner base of the measuring rod correspond to the holes on the workpiece, and a hole position detection rod I (8) and a hole position detection rod II (9) are arranged on the base.