A three-coordinate measuring machine equipped with a high-precision guide rail assembly

Abstract

The utility model relates to three coordinate measurement technical field, and disclose a kind of three coordinate measuring machines equipped with high-precision guide rail assembly, comprising: base, the top of the base is equipped with stand, the top of the stand is fixedly installed with crossbeam, the crossbeam is slidably installed with slide, the bottom of the slide is installed with measuring probe, the accommodating mechanism includes the push seat installed at the top of base and the cavity opened in the side of push seat, the inside of the cavity is installed with multiple push rods, the utility model is set through accommodating mechanism, can be stabilized auxiliary location to measuring article, by internal multiple components cooperation, can be closely fitted measuring article, avoid the displacement of article in the measurement process, effectively reduce the measurement error caused by article shaking, and can be flexibly adjusted according to the different appearance, size of measuring article, without frequently replacing limiting component, further guarantee the overall measurement performance, improve the reliability of measurement data.

Description

Technical Field

[0001] This utility model relates to the field of coordinate measuring technology, specifically a coordinate measuring machine equipped with a high-precision guide rail assembly. Background Technology

[0002] Coordinate measuring machines (CMMs) equipped with high-precision guide rail assemblies are key equipment in precision manufacturing for obtaining workpiece geometry and dimensional information. Traditional and early CMMs typically used air bearings as the main motion support to achieve extremely high measurement accuracy and smooth movement.

[0003] Existing coordinate measuring machines (CMMs) generally suffer from insufficient stability in limiting the measurement of objects. Traditional limiting structures are mostly fixed-specification clamping or supporting components, which can only be adapted to measuring objects of specific shapes and sizes. When dealing with objects of different shapes or sizes, it is necessary to frequently change the limiting components, which is cumbersome and time-consuming, seriously affecting measurement efficiency. At the same time, fixed limiting structures are difficult to fit tightly with the surface of the object being measured. During the measurement process, slight displacement of the object can easily cause large measurement errors, resulting in reduced reliability of measurement data and failing to meet the requirements of high-precision measurement. In addition, some limiting mechanisms may cause scratches, squeezing, or other damage to the surface of the object being measured due to poor fit or improper control of clamping force, further affecting the measurement and subsequent use of the object. Utility Model Content

[0004] The purpose of this invention is to provide a coordinate measuring machine equipped with a high-precision guide rail assembly, which solves the problem in the background art that when facing objects of different shapes or sizes, it is necessary to frequently change the limit components, which is cumbersome and time-consuming, seriously affecting the measurement efficiency, resulting in reduced reliability of measurement data, and failing to meet the requirements of high-precision measurement.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A coordinate measuring machine equipped with a high-precision guide rail assembly includes: A base, on the top of which is a column, on the top of which is a crossbeam, on which a slide block is slidably mounted, on the bottom of which is a measuring probe, and on the top of which is a moving component. An adaptation mechanism is provided, which is located on the top of the base and is used to assist in limiting and stabilizing the measured item. The adaptation mechanism includes a push seat installed on the top of the base and a cavity opened on one side of the push seat. Multiple push rods are installed inside the cavity. A limiting side plate is installed on one side of the push seat. Multiple opening slots are opened on one side of the limiting side plate. The multiple opening slots correspond one-to-one with the multiple push rods. One end of each of the multiple push rods passes through the multiple opening slots. A guide assembly for guiding the multiple push rods is provided inside the push seat.

[0006] Preferably, the guide assembly includes a plurality of guide rods fixedly installed inside the pusher seat and guide grooves formed on the plurality of pusher rods, the plurality of pusher seats passing through the plurality of guide grooves, and the interior of the pusher seat being provided with a fitting component for adapting to the plurality of pusher rods.

[0007] Preferably, the bonding assembly includes a bladder installed inside the pusher seat and an air pump installed inside the base. An air pipe is installed at the bottom of the air pump, and one end of the air pipe passes through the pusher seat and is connected to the bladder.

[0008] Preferably, the moving component includes a high-precision guide rail body mounted on the top of the base and a moving seat slidably mounted on the top of the high-precision guide rail body, the column is fixedly mounted on the moving seat, and a limit plate is fixedly mounted on one side of the crossbeam.

[0009] Preferably, the slide has a through groove, a movable plate is installed inside the through groove, the measuring probe is installed at the bottom of the movable plate, and a marking component is provided on the movable plate.

[0010] Preferably, the marking assembly includes a scale line fixedly installed on one side of the movable plate and a marking line fixedly installed on one side of the slide, wherein the marking line corresponds to the scale line.

[0011] Preferably, the base has an internal mounting cavity, a bidirectional lead screw is rotatably mounted inside the mounting cavity, and two adjusting seats are movably mounted inside the mounting cavity. Both adjusting seats are screwed onto the bidirectional lead screw. A drive motor is mounted on one side of the base, and the main shaft of the drive motor is connected to one end of the bidirectional lead screw.

[0012] Compared with the prior art, the beneficial effects achieved by this utility model are: This invention, through the adaptation mechanism, can provide stable auxiliary positioning for the measured object. Through the cooperation of multiple internal components, it can closely fit the measured object, preventing displacement during measurement and laying the foundation for accurate measurement by the probe. It effectively reduces measurement errors caused by object movement and can be flexibly adjusted according to the different shapes and sizes of the measured object, eliminating the need for frequent replacement of the positioning components, reducing operational complexity, and improving measurement efficiency. Thus, while achieving stable positioning, it does not damage the measured object, protecting its integrity and further ensuring the overall measurement performance of the coordinate measuring machine, improving the reliability and accuracy of the measurement data. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of this utility model; Figure 3 This is a schematic diagram of the structure of the air pump of this utility model; Figure 4 This is a schematic diagram of the structure of the marking component of this utility model; Figure 5 This is a schematic diagram of the structure of the adaptive mechanism of this utility model.

[0014] The components include: 1. Base; 2. High-precision guide rail body; 3. Column; 4. Crossbeam; 5. Moving plate; 6. Push seat; 7. Drive motor; 8. Two-way lead screw; 9. Air pump; 10. Adjusting seat; 11. Limiting plate; 12. Slide; 13. Scale line; 14. Measuring probe; 15. Bag; 16. Push rod; 17. Limiting side plate; 18. Guide rod; 19. Guide groove; 20. Air tube. Detailed Implementation

[0015] 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.

[0016] Please refer to Figure 1 and Figure 2 A coordinate measuring machine equipped with a high-precision guide rail assembly includes: a base 1, a column 3 mounted on the top of the base 1, a crossbeam 4 fixedly mounted on the top of the column 3, a slide block 12 slidably mounted on the crossbeam 4, a measuring probe 14 mounted on the bottom of the slide block 12, and a moving component provided on the top of the base 1.

[0017] Please refer to Figure 5The adaptation mechanism is located on the top of the base 1 and is used to assist in limiting and stabilizing the measured item. The adaptation mechanism includes a push seat 6 installed on the top of the base 1 and a cavity opened on one side of the push seat 6. Multiple push rods 16 are installed inside the cavity. A limiting side plate 17 is installed on one side of the push seat 6. Multiple opening slots are opened on one side of the limiting side plate 17. The multiple opening slots correspond one-to-one with the multiple push rods 16. One end of each of the multiple push rods 16 passes through the multiple opening slots. The push seat 6 is provided with a guide assembly for guiding the multiple push rods 16. The guide assembly includes multiple guide rods 18 fixedly installed inside the push seat 6 and guide slots 19 opened on the multiple push rods 16. The multiple push seats 6 pass through the multiple guide slots 19. The push seat 6 is provided with a fitting assembly for adapting to the multiple push rods 16. The entire device is supported by a base 1. The movable component at the top of the base 1 can drive the column 3 to move stably. The crossbeam 4 fixed at the top of the column 3 provides a sliding track for the slide 12. The measuring probe 14 at the bottom of the slide 12 can move with the slide 12 on the crossbeam 4, thereby realizing the coordinate measurement of the object. At the same time, the adaptation mechanism at the top of the base 1 is used to assist in limiting and stabilizing the object. In this mechanism, multiple pushing rods 16 installed in the cavity on one side of the pushing seat 6 will pass through the corresponding opening slots on the limiting side plate 17 on one side of the pushing seat 6. The push rod 16 is used to contact and limit the measurement of the object. The guide component inside the push base 6 guides the movement direction of the push rod 16. At the same time, the push rod 16 can only move along the extension direction of the guide rod 18 to avoid the push rod 16 deviating during the limiting process of the measurement object and to ensure the stability of the limiting. At the same time, the fitting component inside the push base 6 is used to adapt to the push rod 16. It can further adjust the extension state of the push rod 16 according to the shape or position of the measurement object, so that the push rod 16 fits the measurement object better. Finally, it works with the measuring probe 14 to achieve accurate measurement.

[0018] Furthermore, such as Figure 1 , Figure 2 and Figure 5 As shown, the bonding assembly includes a pouch 15 installed inside the pusher seat 6 and an air pump 9 installed inside the base 1. An air tube 20 is installed at the bottom of the air pump 9, and one end of the air tube 20 passes through the pusher seat 6 and is connected to the pouch 15. Based on this, when it is necessary for the pusher rod 16 to adaptively bond with the measuring item to enhance the limiting effect, the air pump 9 inside the base 1 is activated. The gas generated by the air pump 9 is delivered to the pouch 15 inside the pusher seat 6 through the air tube 20. After the pouch 15 is inflated, it pushes multiple pusher rods 16 in the cavity. Under the guidance of the guide rod 18 inside the pusher seat 6 and its own guide groove 19, the pusher rod 16 passes through the corresponding opening groove on the limiting side plate 17 along the guiding direction until it is tightly bonded with the measuring item, realizing adaptive limiting and providing stable conditions for the accurate measurement of the measuring probe 14.

[0019] Furthermore, such as Figure 1 and Figure 2 As shown, the moving component includes a high-precision guide rail body 2 mounted on the top of the base 1 and a movable seat slidably mounted on the top of the high-precision guide rail body 2. The column 3 is fixedly mounted on the movable seat, and a limit plate 11 is fixedly mounted on one side of the crossbeam 4. Based on this, the movable seat on the top of the high-precision guide rail body 2 will slide stably along the high-precision guide rail body 2, and the movable seat will drive the column 3 to move synchronously, thereby driving the crossbeam 4 fixed on the top of the column 3 and the slide 12 on the crossbeam 4 and the measuring probe 14 at the bottom of the slide 12 to move. At the same time, the limit plate 11 fixed on one side of the crossbeam 4 can prevent the slide 12 from detaching from the crossbeam 4 when sliding, and finally achieve precise adjustment of the measurement position.

[0020] Furthermore, such as Figure 4 As shown, a through groove is provided on the slide 12, and a movable plate 5 is installed inside the through groove. The measuring probe 14 is installed at the bottom of the movable plate 5. A marking component is provided on the movable plate 5. The marking component includes a scale line 13 fixedly installed on one side of the movable plate 5 and a marking line fixedly installed on one side of the slide 12. The marking line corresponds to the scale line 13. Based on this, the measuring probe 14 is installed at the bottom of the movable plate 5. By adjusting the position of the movable plate 5 in the through groove of the slide 12, the measuring probe 14 can be moved synchronously. At the same time, the marking component on the movable plate 5 can help determine the moving distance of the movable plate 5, ensuring the accuracy of the position adjustment of the measuring probe 14, thereby improving the measurement accuracy.

[0021] Please also refer to... Figure 3 The base 1 has an internal mounting cavity, inside which a bidirectional lead screw 8 is rotatably mounted. Two adjusting seats 10 are movably mounted inside the mounting cavity, both screwed onto the bidirectional lead screw 8. A drive motor 7 is mounted on one side of the base 1, and the main shaft of the drive motor 7 is connected to one end of the bidirectional lead screw 8. Therefore, when the position of the adaptation mechanism needs to be adjusted to accommodate different sized measuring items, the drive motor 7 on one side of the base 1 is activated. The main shaft of the drive motor 7 drives the bidirectional lead screw 8 inside the mounting cavity of the base 1 to rotate. The rotation of the bidirectional lead screw 8 causes the two adjusting seats 10 to move synchronously towards or away from each other along the mounting cavity, thereby moving the adaptability mechanism components such as the push seat 6 associated with the adjusting seats 10, thus adjusting the spacing of the adaptability mechanism to better assist in limiting the measurement of the items.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A coordinate measuring machine equipped with a high-precision guide rail assembly, characterized by comprising: include: A base (1) is provided with a column (3) installed on the top of the base (1), a crossbeam (4) is fixedly installed on the top of the column (3), a slide (12) is slidably installed on the crossbeam (4), a measuring probe (14) is installed at the bottom of the slide (12), and a moving component is provided on the top of the base (1). The adaptation mechanism is located on the top of the base (1) and is used to assist in limiting and stabilizing the measuring item. The adaptation mechanism includes a push seat (6) installed on the top of the base (1) and a cavity opened on one side of the push seat (6). Multiple push rods (16) are installed inside the cavity. A limiting side plate (17) is installed on one side of the push seat (6). Multiple opening slots are opened on one side of the limiting side plate (17). The multiple opening slots correspond one-to-one with the multiple push rods (16). One end of each of the multiple push rods (16) passes through the multiple opening slots. A guide component is provided inside the push seat (6) to guide the multiple push rods (16).

2. A coordinate measuring machine equipped with a high-precision guide rail assembly according to claim 1, characterized in that: The guide assembly includes a plurality of guide rods (18) fixedly installed inside the pusher seat (6) and guide grooves (19) formed on the plurality of pusher rods (16). The plurality of pusher seats (6) pass through the plurality of guide grooves (19). The interior of the pusher seat (6) is provided with a fitting assembly for adapting to the plurality of pusher rods (16).

3. A coordinate measuring machine equipped with a high-precision guide rail assembly according to claim 2, characterized in that: The fitting assembly includes a bladder (15) installed inside the push seat (6) and an air pump (9) installed inside the base (1). An air tube (20) is installed at the bottom of the air pump (9), one end of which passes through the push seat (6) and is connected to the bladder (15).

4. The coordinate measuring machine equipped with a high-precision guide rail assembly according to claim 1, characterized in that: The moving component includes a high-precision guide rail body (2) mounted on the top of the base (1) and a moving seat slidably mounted on the top of the high-precision guide rail body (2). The column (3) is fixedly mounted on the moving seat, and a limit plate (11) is fixedly mounted on one side of the crossbeam (4).

5. The coordinate measuring machine equipped with a high-precision guide rail assembly according to claim 1, characterized in that: The slide (12) has a through groove, and a movable plate (5) is installed inside the through groove. The measuring probe (14) is installed at the bottom of the movable plate (5), and a marking component is provided on the movable plate (5).

6. A coordinate measuring machine equipped with a high-precision guide rail assembly according to claim 5, characterized in that: The marking assembly includes a scale line (13) fixedly installed on one side of the movable plate (5) and a marking line fixedly installed on one side of the slide (12), the marking line corresponding to the scale line (13).

7. A coordinate measuring machine equipped with a high-precision guide rail assembly according to claim 6, characterized in that: The base (1) has an installation cavity inside, and a bidirectional lead screw (8) is rotatably installed inside the installation cavity. Two adjustment seats (10) are movably installed inside the installation cavity. Both adjustment seats (10) are screwed onto the bidirectional lead screw (8). A drive motor (7) is installed on one side of the base (1), and the main shaft of the drive motor (7) is connected to one end of the bidirectional lead screw (8).

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