A universal fixture for a videometer
By designing a universal fixture and combining multiple positioning mechanisms and buffer layers, the problem of existing fixtures being unable to stably fix parts has been solved, enabling efficient and accurate measurement by the image measuring instrument.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUXI INSTITUTE OF TECHNOLOGY
- Filing Date
- 2025-08-08
- Publication Date
- 2026-07-14
AI Technical Summary
Existing image measuring instrument fixtures cannot fully secure parts, resulting in inaccurate measurement results and failing to meet the fixing requirements of parts of different sizes.
A universal fixture was designed, including disc-type and plate-type fasteners, combined with a bridge-type support frame and a glass plate. It employs various positioning mechanisms such as clamping, cylindrical positioning, movable positioning, and telescopic positioning, and protects the surface of the parts through a buffer layer, thereby achieving stable fixing of parts of various shapes and sizes.
It improves the accuracy and stability of measurements, has wide adaptability, is easy to install, and can quickly adapt to the measurement needs of different parts, ensuring the reliability of measurement results.
Smart Images
Figure CN224488886U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of jig structure for image measuring instruments, specifically a general-purpose fixture for image measuring instruments. Background Technology
[0002] In the field of measurement, due to the diverse shapes of workpieces, fixtures are needed to assist measuring instruments in completing the measurement process for accuracy. The measuring platform, sliding rails, and other components of a video measuring instrument shift during operation, causing the measured object to deviate or become unstable, which affects the measurement results. When measuring parts with a video measuring instrument, it is often necessary to fix the parts in place without affecting their features. Existing technologies mainly use mechanical fixtures, glass clamps, magnetic clamps, adhesive blocks, and adhesive tape for fixation. These methods have drawbacks, such as incomplete fixation or obscuring of part features. They also cannot achieve simultaneous installation or fixation of parts of different sizes. Utility Model Content
[0003] The purpose of this utility model is to provide a universal fixture for image measuring instruments to solve the problems of existing fixtures being complicated to adjust, unable to quickly clamp parts, and having low adaptability.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a universal fixture for an image measuring instrument, comprising: a base frame, mounted on the image measuring instrument; a platform, mounted on the base frame, the platform comprising a central placement plate and an outer mounting plate; a disc-type fastener, movably mounted on the outer mounting plate; and a sheet-type fastener, movably mounted on the outer mounting plate.
[0005] As a further improvement to the above technical solution:
[0006] The disc-shaped fastener includes a first positioning mechanism, a second positioning mechanism, and a third positioning mechanism. The first and second positioning mechanisms are disposed on both sides of the outer mounting plate, and the two ends of the third positioning mechanism are respectively installed on both sides of the outer mounting plate.
[0007] Multiple first positioning mechanisms are mounted on an outer mounting plate. Each first positioning mechanism includes a first mounting base and a first positioning pin that is threaded into the first mounting base.
[0008] The second positioning mechanism includes a second positioning seat and a second positioning post, which are slidably engaged. A return spring is sleeved on the second positioning post. The second positioning mechanism is a telescopic positioning mechanism that can automatically clamp and position without adjustment.
[0009] The third positioning mechanism includes a third positioning seat and a third positioning post, with a slide rail between the third positioning seats, and the third positioning post slidingly engaging with the slide rail. The third positioning mechanism is a movable positioning mechanism, allowing for free adjustment of the clamping position.
[0010] The plate-type fastener includes at least two fourth positioning mechanisms. Each fourth positioning mechanism includes a fourth positioning seat and a fourth positioning pin. The fourth positioning pin and the fourth positioning seat are slidably engaged. A fixing screw is provided on the fourth positioning seat, and the fourth positioning pin is fixed inside the fourth positioning seat by the fixing screw. The fourth positioning mechanism is a clamping mechanism used to clamp the product.
[0011] A buffer layer is provided around the first, second, third, and fourth positioning posts. The buffer layer is made of silicone, other soft materials, or elastic materials to prevent damage to the surface of the part. This design not only protects the part but also ensures safety during the measurement process.
[0012] The outer mounting plate is provided with a number of mounting holes, and the disc-type fastener and the plate-type fastener are installed in the mounting holes.
[0013] The outer mounting plate is provided with a slide rail, and the disc-type fixing component and the plate-type fixing component are slidably installed on the slide rail and locked on the slide rail by locking components.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] High versatility: Through the free combination of different clamping mechanisms, including clamping, cylindrical positioning, movable positioning, and telescopic positioning mechanisms, it is possible to fix parts of various shapes and sizes. This versatility allows the fixture to adapt to a variety of different measurement needs.
[0016] High stability: The design of the bridge-type support frame combined with the glass plate ensures stability during the measurement process without affecting the shape characteristics of the measured part. This design makes the measurement results more accurate and reliable.
[0017] Easy to install: The various devices have a simple structure and are easy to install, enabling operators to quickly complete the setting and adjustment of the fixture, thereby saving measurement time.
[0018] Wide applicability: This fixture is suitable for various types of parts, including disc-shaped and sheet-shaped parts, and can meet the measurement needs in different scenarios. In particular, for sheet-shaped parts, the clamping and positioning of products of different thicknesses can be achieved by adjusting the fourth positioning mechanism.
[0019] Flexible adjustment: The outer mounting plate has several mounting holes, into which disc-type and plate-type fasteners are installed. The position of the fastener can be changed by altering the location of the mounting hole. Furthermore, options for slides and locking mechanisms are provided, making adjustment even more flexible and efficient.
[0020] In summary, the universal fixture of this utility model has significant advantages in terms of versatility, stability, ease of installation and applicability, and can effectively improve the measurement efficiency and accuracy of image measuring instruments. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0022] Figure 2 This is a schematic diagram of the installation structure of the disc-type fastener of this utility model;
[0023] Figure 3 This is an enlarged structural schematic diagram of the disc-type fixing component of this utility model;
[0024] Figure 4 This is a schematic diagram of the installation structure of the plate-type fastener of this utility model;
[0025] Figure 5 This is an enlarged structural schematic diagram of the plate-type fastener of this utility model;
[0026] Figure 6 This is a schematic diagram of the platform installation structure of this utility model;
[0027] Figure 7 This is a schematic diagram of the platform structure of this utility model;
[0028] Figure 8 This is a schematic diagram of the first positioning mechanism of this utility model;
[0029] Figure 9 This is a schematic diagram of the second positioning mechanism of this utility model;
[0030] Figure 10 This is a schematic diagram of the third positioning mechanism of this utility model;
[0031] Figure 11 This is a schematic diagram of the third positioning column structure of this utility model;
[0032] Figure 12 This is a schematic diagram of the fourth positioning mechanism of this utility model.
[0033] Reference numerals: 1. Base frame; 2. Platform; 21. Central placement plate; 22. Outer mounting plate; 3. Disc-type fastener; 31. First positioning mechanism; 311. First mounting seat; 312. First positioning post; 32. Second positioning mechanism; 321. Second positioning seat; 322. Second positioning post; 323. Return spring; 33. Third positioning mechanism; 331. Third positioning seat; 332. Third positioning post; 333. Slide rail; 4. Plate-type fastener; 41. Fourth positioning mechanism; 411. Fourth positioning seat; 412. Fourth positioning post; 413. Fixing screw. Detailed Implementation
[0034] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0035] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicating orientation or position, are based on the orientation or positional relationships shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0036] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0038] like Figure 1 As shown, the universal fixture for an image measuring instrument in this embodiment includes:
[0039] Base frame 1, mounted on the image measuring instrument;
[0040] Platform 2 is mounted on base frame 1, such as Figure 6 and Figure 7 As shown, the platform 2 includes a central placement plate 21 and an outer mounting plate 22. The platform 2 is designed in a bridge shape, with a hollow center. The four upper sides of the hollow section extend upwards by 5 cm, and the four lower sides extend forward, backward, left, and right by 10 cm to accommodate the optical glass plate, forming the central placement plate 21. Holes are provided on both sides of the hollow section for mounting fixtures, forming the outer mounting plate 22. Holes are provided at both ends of the platform 2, with the same size as the holes in the base frame 1, to facilitate bolt insertion and fixation to the base frame 1. The central placement plate 21 uses an optical glass plate with light transmittance, low dispersion, and high refractive index, which will not affect the characteristics of the part being measured.
[0041] like Figure 2 and Figure 3 As shown, the disc-shaped fastener 3 is movably mounted on the outer mounting plate 22. The disc-shaped fastener 3 includes a first positioning mechanism 31, a second positioning mechanism 32, and a third positioning mechanism 33. The first positioning mechanism 31 and the second positioning mechanism 32 are disposed on both sides of the outer mounting plate 22, and the two ends of the third positioning mechanism 33 are respectively mounted on both sides of the outer mounting plate 22. Multiple first positioning mechanisms 31 are mounted on the outer mounting plate 22.
[0042] like Figure 8 As shown, the first positioning mechanism 31 includes a first mounting base 311 and a first positioning pin 312 that is threaded into the first mounting base 311. The first positioning pin 312 is composed of a threaded horizontal cylindrical rod and a vertical cylindrical rod. The first mounting base 311 is mounted on the outer mounting plate 22 by bolts. The threaded horizontal cylindrical rod is screwed into the first mounting base 311, and the vertical cylindrical rod is mounted on the threaded horizontal cylindrical rod. The vertical cylindrical rod contacts the part to achieve the positioning of the part.
[0043] like Figure 9 As shown, the second positioning mechanism 32 includes a second positioning seat 321 and a second positioning post 322, which are slidably engaged. A return spring 323 is sleeved on the second positioning post 322. The second positioning seat 321 is mounted on the outer mounting plate 22, and the return spring 323 is sleeved on the second positioning post 322. The second positioning post 322 passes through the second positioning seat 321, and a limit pin is installed to prevent the second positioning post 322 from disengaging from the second mounting seat 321. The end of the second positioning post 322 contacts the part, and its end shape can be set according to requirements.
[0044] like Figure 10 and Figure 11As shown, the third positioning mechanism 33 includes a third positioning seat 331 and a third positioning post 332. A slide rail 333 is provided between the third positioning seats 331, and the third positioning post 332 slides in cooperation with the slide rail 333.
[0045] like Figure 4 and Figure 5 As shown, the plate-type fastener 4 can be movably installed on the outer mounting plate 22.
[0046] like Figure 12 As shown, the plate-type fastener 4 includes at least two fourth positioning mechanisms 41. Each fourth positioning mechanism 41 includes a fourth positioning seat 411 and a fourth positioning post 412. The fourth positioning post 412 and the fourth positioning seat 411 are slidably engaged. A fixing screw 413 is provided on the fourth positioning seat 411, and the fourth positioning post 412 is fixed in the fourth positioning seat 411 by the fixing screw 413.
[0047] In one embodiment, a buffer layer is provided outside the first positioning post 312, the second positioning post 322, the third positioning post 332, and the fourth positioning post 412. The buffer layer may be made of silicone or other soft or elastic materials to avoid damage to the surface of the part.
[0048] The outer mounting plate 22 has several mounting holes, into which the disc-type fastener 3 and the plate-type fastener 4 are installed. Adjustment is achieved by changing the position of the positioning seat within the mounting hole. The mounting holes are threaded holes, and the positioning seat is fixed within them by bolts.
[0049] In another embodiment, the outer mounting plate 22 is provided with a slide rail, on which the disc-type fixing member 3 and the plate-type fixing member 4 are slidably mounted and locked in place by locking members. This slide rail can be a slide rail, with each mounting base mounted on it via a slider, allowing for quick position adjustment. It should also include a locking member to quickly lock the slider in place on the slide rail. Compared to bolt fixing, this method is more efficient and offers greater flexibility in adjustment.
[0050] For disc-shaped parts, place the disc-shaped parts on the central placement plate 21, install the third positioning mechanism 33 to hold the lower end of the parts in place so that the parts cannot move downwards, install the second positioning mechanism 32 on the right side of the parts, and then fix the parts by adjusting the position of the first positioning mechanism 31.
[0051] For sheet-like parts, the sheet-like parts are placed on the central placement plate 21, and the position of the fourth positioning mechanism 41 is adjusted to achieve clamping of the sheet-like parts. This structure is mainly used for image acquisition of certain positions within the sheet-like parts, such as hole size and hole structure. Since the product size is not fixed, the size of the fourth positioning post 412 in the fourth positioning mechanism 41 is smaller than the size of the fourth positioning seat 411, as shown in the figure. The contact part between the fourth positioning post 412 and the fourth positioning seat 411 is a semi-cylindrical structure. The clamping and positioning of products of different thicknesses can be achieved by adjusting the fixing screw 413.
[0052] This utility model discloses a universal fixture for image measuring instruments. It utilizes a free combination of different clamping mechanisms, including clamping, cylindrical positioning, movable positioning, and telescopic positioning mechanisms, to fix parts of various shapes and sizes. Simultaneously, a bridge-type support frame is used in conjunction with a glass plate, ensuring stability without affecting the shape characteristics of the measured part. The various devices have simple structures, are easy to install, facilitate measurement, save time, and have wide applicability.
[0053] The above description is merely an embodiment of this utility model, and common knowledge regarding specific structures and characteristics is not described in detail here. It will be apparent to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this utility model is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A universal fixture for an image measuring instrument, characterized in that, include: The base frame (1) is mounted on the image measuring instrument; A platform (2) is mounted on a base frame (1), the platform (2) comprising a central placement plate (21) and an outer mounting plate (22); The disc-type fastener (3) can be movably installed on the outer mounting plate (22); The plate-type fastener (4) can be movably installed on the outer mounting plate (22).
2. The universal fixture for an image measuring instrument according to claim 1, characterized in that: The disc-shaped fastener (3) includes a first positioning mechanism (31), a second positioning mechanism (32) and a third positioning mechanism (33). The first positioning mechanism (31) and the second positioning mechanism (32) are disposed on both sides of the outer mounting plate (22), and the two ends of the third positioning mechanism (33) are respectively installed on both sides of the outer mounting plate (22).
3. The universal fixture for an image measuring instrument according to claim 2, characterized in that: Multiple first positioning mechanisms (31) are mounted on an outer mounting plate (22). Each first positioning mechanism (31) includes a first mounting base (311) and a first positioning pin (312) that is threaded into the first mounting base (311).
4. The universal fixture for an image measuring instrument according to claim 3, characterized in that: The second positioning mechanism (32) includes a second positioning seat (321) and a second positioning post (322), the second positioning seat (321) and the second positioning post (322) are slidably engaged, and a return spring (323) is sleeved on the second positioning post (322).
5. The universal fixture for an image measuring instrument according to claim 4, characterized in that: The third positioning mechanism (33) includes a third positioning seat (331) and a third positioning column (332). A slide rail (333) is provided between the third positioning seats (331), and the third positioning column (332) slides in cooperation with the slide rail (333).
6. The universal fixture for an image measuring instrument according to claim 5, characterized in that: The plate-type fastener (4) includes at least two fourth positioning mechanisms (41). Each fourth positioning mechanism (41) includes a fourth positioning seat (411) and a fourth positioning post (412). The fourth positioning post (412) and the fourth positioning seat (411) are slidably engaged. A fixing screw (413) is provided on the fourth positioning seat (411) to fix the fourth positioning post (412) in the fourth positioning seat (411).
7. The universal fixture for an image measuring instrument according to claim 6, characterized in that: The first positioning post (312), the second positioning post (322), the third positioning post (332) and the fourth positioning post (412) are provided with a buffer layer.
8. The universal fixture for an image measuring instrument according to claim 1, characterized in that: The peripheral mounting plate (22) is provided with several mounting holes, and the disc-type fastener (3) and the plate-type fastener (4) are installed in the mounting holes.
9. The universal fixture for an image measuring instrument according to claim 1, characterized in that: The peripheral mounting plate (22) is provided with a slide rail, and the disc-type fixing member (3) and the plate-type fixing member (4) are slidably installed on the slide rail and locked on the slide rail by the locking member.