Spherical valve plate three-coordinate detection auxiliary tool

Abstract

The utility model relates to a three-coordinate detection auxiliary tool for a spherical valve plate, and belongs to the technical field of spherical valve plate product detection auxiliary clamping. Comprising a positioning bottom plate which is provided with a positioning face attached to the spherical valve plate. The clamping assembly is arranged on the positioning bottom plate, a mounting cavity is defined between the clamping assembly and the positioning surface, an opening is formed in at least one side, opposite to the positioning surface, of the mounting cavity, and the clamping assembly is used for fixing the spherical valve plate in the mounting cavity. The spherical valve plate is placed on the positioning face, the bottom of the spherical valve plate is attached to the positioning face, the spherical valve plate is clamped and fixed through the clamping assembly, the spherical valve plate is detected, the probe can be directly in contact with the bottom face of a product from the opening side, the annular groove area can be avoided, and the probe does not need to be frequently replaced or the angle of the probe does not need to be adjusted through the clamping assembly.

Description

Technical Field

[0001] This application relates to the field of auxiliary clamping technology for the inspection of spherical distribution plates, and in particular to an auxiliary tooling for three-coordinate inspection of spherical distribution plates. Background Technology

[0002] A three-jaw chuck is a common mechanical clamping tool widely used in machining and inspection. Its working principle involves using three synchronously moving jaws to hold the workpiece. In the inspection of spherical distribution plate products, the three-jaw chuck is used to fix the product.

[0003] The bottom surface elements of spherical distribution plate products, such as planes, holes, and slots, typically have different vector directions. To accurately acquire these elements, the probe needs to measure along different directions. Because the clamping method of the three-jaw chuck is fixed, the probe needs to be frequently changed or its angle adjusted when acquiring elements with different vector directions. Frequent probe changes not only increase operational complexity but may also lead to measurement errors.

[0004] Furthermore, since the bottom surface of spherical distribution plate products is usually designed with an annular groove structure for functional requirements, when using a three-jaw chuck for clamping, the probe is prone to scanning the annular groove position when collecting bottom surface elements, causing the measurement data to deviate from the actual value. Summary of the Invention

[0005] This application provides an auxiliary tooling for coordinate measuring machine (CMM) inspection of a spherical distribution plate, which solves the problem in related technologies where using a three-jaw chuck to fix the spherical distribution plate product easily leads to low accuracy of measurement data due to calibration and measurement errors.

[0006] This application provides an auxiliary tooling for three-coordinate detection of a spherical distribution plate, including: a positioning base plate with a positioning surface that fits against the spherical distribution plate; and a clamping assembly disposed on the positioning base plate and forming an installation cavity between the clamping assembly and the positioning surface, wherein at least one opening is formed on the side of the installation cavity opposite to the positioning surface, and the clamping assembly is used to fix the spherical distribution plate in the installation cavity.

[0007] In some embodiments, the clamping assembly includes: two positioning blocks fixed to the positioning surface, the two positioning blocks being spaced apart, and the opposite sides of the two positioning blocks being configured as contact surfaces that contact the spherical distribution plate; a locking block movably disposed on the positioning base plate near or away from the two positioning blocks, the locking block, the two positioning blocks, and the positioning surface forming the mounting cavity, and the side of the locking block opposite to the two positioning blocks also being configured as a contact surface that contacts the spherical distribution plate; and a fixing member disposed on the positioning base plate for fixing the locking block to the positioning base plate.

[0008] In some embodiments, the two positioning blocks are fixed at an angle relative to each other, and the distance between the two positioning blocks is gradually widened toward the locking block.

[0009] In some embodiments, the mating surfaces of the positioning block and the locking block are both set as bevels.

[0010] In some embodiments, a groove is provided on the positioning base plate between the two positioning blocks, a slider is movably connected in the groove, a locking block is detachably connected to the slider, and a fixing member is connected to the slider and used to fix the slider in the groove.

[0011] In some embodiments, the two side walls of the groove are provided with limiting grooves, and the slider is cut with a limiting surface that abuts against the top wall of the limiting groove.

[0012] In some embodiments, the fastener includes a fixing bolt that passes through the slider and abuts against the bottom wall of the groove.

[0013] In some embodiments, a spring is connected between the fixing bolt and the slider.

[0014] In some embodiments, the mating surface of the locking block is further provided with an arc-shaped groove.

[0015] In some embodiments, the bottom of the positioning base plate is provided with multiple support feet.

[0016] The beneficial effects of the technical solution provided in this application include:

[0017] This application provides an auxiliary tooling for coordinate measuring machine (CMM) inspection of a spherical distribution plate. Since the positioning base plate has a positioning surface that fits with the spherical distribution plate, by placing the spherical distribution plate on the positioning surface, the bottom of the spherical distribution plate fits with the positioning surface, and the clamping assembly clamps and fixes the spherical distribution plate. If the spherical distribution plate is to be inspected, the probe can be directly contacted with the bottom surface of the product from the opening side, avoiding the annular groove area, and eliminating the need to frequently replace the probe or adjust the probe angle clamping assembly, thus effectively improving the inspection accuracy. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of this application;

[0020] Figure label:

[0021] 1. Positioning base plate; 10. Support leg; 2. Positioning surface; 3. Mounting cavity; 40. Positioning block; 41. Fitting surface; 42. Locking block; 420. Arc groove; 5. Groove; 6. Slider; 7. Limiting groove; 8. Limiting surface; 9. Fixing bolt; 90. Spring. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] This application provides an auxiliary tooling for coordinate measuring machine (CMM) inspection of a spherical distribution plate, which can solve the problem that when using a three-jaw chuck to fix a spherical distribution plate product, the accuracy of the measurement data is easily reduced due to the influence of calibration errors and measurement errors.

[0024] See Figure 1 As shown in the figure, this application embodiment provides an auxiliary tooling for three-coordinate inspection of a spherical distribution plate, including: a positioning base plate 1 and a clamping assembly. The bottom of the positioning base plate 1 is provided with multiple legs 10, which provide stable support. The positioning base plate 1 has a positioning surface 2 that fits against the spherical distribution plate. The clamping assembly is disposed on the positioning base plate 1 and forms a mounting cavity 3 between itself and the positioning surface 2. During the inspection of the spherical distribution plate, the spherical distribution plate is placed on and fitted against the positioning surface 2, ensuring accurate positioning of the spherical distribution plate during the inspection process. The shape and size of the positioning surface 2 match the spherical distribution plate, ensuring accurate positioning of the spherical distribution plate. The positioned spherical distribution plate is located within the mounting cavity 3, and an opening is formed at least on the side of the mounting cavity 3 opposite to the positioning surface 2. The clamping assembly is used to fix the spherical distribution plate within the mounting cavity 3.

[0025] Because related technologies use a three-jaw chuck to clamp a spherical distribution plate, the clamping method is fixed, which can restrict the probe's ability to collect elements in different vector directions, leading to measurement errors. However, the solution in this application, through the design of the positioning base plate 1 and the clamping assembly, allows for more flexible adjustment of the probe's position and angle, thereby accurately collecting elements in all directions on the bottom surface of the spherical distribution plate and avoiding measurement errors. Furthermore, the bottom surface of a spherical distribution plate typically has an annular groove structure. During clamping with a three-jaw chuck, the probe can easily scan into the annular groove, causing the measurement data to deviate from the actual value. The open design of the solution in this application allows the probe to more easily approach the bottom surface elements of the spherical distribution plate, avoiding interference with the annular groove structure and ensuring the accuracy of the measurement data.

[0026] In this application, the clamping assembly includes positioning blocks 40, locking blocks 42, and fasteners. Two positioning blocks 40 are provided and fixed to the positioning surface 2, spaced apart. The opposing sides of the two positioning blocks 40 are configured as contact surfaces 41 that contact the spherical distribution plate. The locking block 42 is movably positioned on the positioning base plate 1, near or away from the two positioning blocks 40. A mounting cavity 3 is formed between the locking block 42, the two positioning blocks 40, and the positioning surface 2. The side of the locking block 42 opposite to the two positioning blocks 40 is also configured as a contact surface 41 that contacts the spherical distribution plate. When the spherical distribution plate is placed inside the mounting cavity 3, the contact surface 41 ensures a tight fit between the two, reducing gaps and improving the stability and accuracy of clamping. The locking block 42 is movably mounted on the positioning base plate 1, allowing its position to be adjusted as needed to accommodate spherical distribution plates of different sizes and shapes. The two positioning blocks 40 and the locking block 42 effectively clamp and fix the spherical distribution plate. Finally, a fixing element is mounted on the positioning base plate 1 to secure the locking block 42, ensuring its stability during clamping and preventing it from moving or loosening due to external forces. Furthermore, by adjusting the position or tightness of the fixing element, the position and clamping force of the locking block 42 can be further fine-tuned to meet the clamping requirements of different spherical distribution plates.

[0027] Thanks to the precise design and stable clamping of the clamping components, the spherical distribution plate can maintain a stable posture and position during the inspection process. The flexible adjustment and quick fixing function of the locking block 42 allows operators to complete the clamping and positioning of the spherical distribution plate more quickly, thereby improving inspection efficiency.

[0028] In this application, to improve the clamping and fixing stability of the spherical distribution plate, the contact surfaces 41 on both the positioning block 40 and the locking block 42 are set as inclined surfaces. Compared with the flat contact surface 41, the inclined contact surface 41 can form a tighter contact with the surface of the spherical distribution plate, reducing gaps and thus improving the stability and accuracy of clamping. Furthermore, the contact surface 41 of the locking block 42 is also provided with an arc-shaped groove 420, which further improves the fit between the locking block 42 and the surface of the spherical distribution plate, increases the clamping stability, and also avoids stress concentration leading to deformation.

[0029] In this application, two positioning blocks 40 are fixed at a relative angle, and the distance between the two positioning blocks 40 gradually widens towards the locking block 42. This allows the two positioning blocks 40 to form a certain angle, providing more stable support for the spherical distribution plate. It also better adapts to the curved shape of the spherical distribution plate, reducing stress concentration caused by planar contact, thereby improving clamping stability. Furthermore, because the positioning blocks 40 are fixed at a relative angle and the distance gradually widens, it ensures that the spherical distribution plate is accurately positioned between the two positioning blocks 40 during clamping. This design reduces deviations or errors caused by inaccurate positioning and improves positioning accuracy.

[0030] In this application, to facilitate the movable connection of the locking block 42, a groove 5 is provided on the positioning base plate 1 between the two positioning blocks 40. A slider 6 is movably connected within the groove 5. The locking block 42 is detachably connected to the slider 6 via bolts or other connecting parts. A fixing part is connected to the slider 6 and used to fix the slider 6 within the groove 5. Because the slider 6 can move within the groove 5, the position of the locking block 42 can be flexibly adjusted as needed. This allows the locking block 42 to adapt to spherical distribution plates of different sizes and shapes, improving the flexibility and adaptability of the tooling. In addition, the detachable connection design between the locking block 42 and the slider 6 allows the locking block 42 to be easily replaced or adjusted to meet the clamping requirements of different spherical distribution plates.

[0031] In this application, limiting grooves 7 are provided on both side walls of the groove 5, and limiting surfaces 8 are cut on the slider 6 to abut against the top wall of the limiting grooves 7. This makes the slider 6 more securely connected within the groove 5, and the cooperation between the limiting surfaces 8 and the limiting grooves 7 prevents the slider 6 from falling out of the groove 5. The fixing components include fixing bolts 9, which pass through the slider 6 and abut against the bottom wall of the groove 5. Tightening the fixing bolts 9 can effectively fix the slider 6, making the structure reliable.

[0032] In this application, a spring 90 is also connected between the fixing bolt 9 and the slider 6, and the fixing bolt 9 is effectively connected to the slider 6 by the action of the spring 90.

[0033] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0034] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A spherical flow distribution plate three-coordinate detection auxiliary tool, characterized in that, include: Positioning base plate (1), on which a positioning surface (2) is provided to fit with the spherical distribution plate; A clamping assembly is disposed on the positioning base plate (1) and forms an installation cavity (3) between it and the positioning surface (2). An opening is formed at least on the side of the installation cavity (3) opposite to the positioning surface (2). The clamping assembly is used to fix the spherical distribution plate in the installation cavity (3).

2. The auxiliary tooling for three-coordinate detection of a spherical distribution plate as described in claim 1, characterized in that: The clamping assembly includes: Positioning blocks (40) are provided in two and fixed on the positioning surface (2). The two positioning blocks (40) are spaced apart, and the opposite sides of the two positioning blocks (40) are set as the contact surface (41) that contacts the spherical distribution plate. A locking block (42) is movably disposed on the positioning base plate (1) near or away from the two positioning blocks (40). The mounting cavity (3) is formed between the locking block (42), the two positioning blocks (40), and the positioning surface (2). The side of the locking block (42) opposite to the two positioning blocks (40) is also configured as a contact surface (41) that contacts the spherical distribution plate. A fixing element is provided on the positioning base plate (1), and the fixing element is used to fix the locking block (42) on the positioning base plate (1).

3. The auxiliary tooling for three-coordinate detection of a spherical distribution plate as described in claim 2, characterized in that: The two positioning blocks (40) are fixed at an angle relative to each other, and the distance between the two positioning blocks (40) is gradually widened toward the locking block (42).

4. The auxiliary tooling for three-coordinate detection of a spherical distribution plate as described in claim 2, characterized in that: The mating surfaces (41) on the positioning block (40) and the locking block (42) are both set as inclined surfaces.

5. The auxiliary tooling for three-coordinate detection of a spherical distribution plate as described in claim 2, characterized in that: The positioning base plate (1) has a groove (5) between the two positioning blocks (40). A slider (6) is movably connected in the groove (5). The locking block (42) is detachably connected to the slider (6). The fixing member is connected to the slider (6) and is used to fix the slider (6) in the groove (5).

6. The auxiliary tooling for three-coordinate detection of a spherical distribution plate as described in claim 5, characterized in that: The groove (5) has limiting grooves (7) on both sides, and the slider (6) has a limiting surface (8) that abuts against the top wall of the limiting groove (7).

7. The auxiliary tooling for three-coordinate detection of a spherical distribution plate as described in claim 6, characterized in that: The fastener includes a fixing bolt (9) that passes through the slider (6) and abuts against the bottom wall of the groove (5).

8. The auxiliary tooling for three-coordinate detection of a spherical distribution plate as described in claim 7, characterized in that: A spring (90) is connected between the fixing bolt (9) and the slider (6).

9. The auxiliary tooling for three-coordinate detection of a spherical distribution plate as described in claim 4, characterized in that: The locking block (42) also has an arc-shaped groove (420) on its mating surface (41).

10. The auxiliary tooling for three-coordinate detection of a spherical distribution plate as described in claim 1, characterized in that: The bottom of the positioning base plate (1) is provided with multiple support feet (10).

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