Three-axis measuring device

Abstract

The utility model discloses a three-axis measuring device which comprises a three-axis support, a detection assembly and a control assembly, the three-axis support comprises four sliding rod parts, and the four sliding rod parts are divided into two X-axis sliding rod parts, a Y-axis sliding rod part and a Z-axis sliding rod part; the two X-axis sliding rod components are arranged in parallel and extend in the X-axis direction of a space coordinate system. A detection station is formed between the two X-axis sliding rod components and is used for placing an object to be detected; the Y-axis sliding rod component is arranged on the X-axis sliding rod component in a sliding mode and extends in the Y-axis direction of the space coordinate system. The Z-axis sliding rod component is arranged on the Y-axis sliding rod component in a sliding mode and extends in the Z-axis direction of the space coordinate system. The detection assembly is arranged on the Z-axis sliding rod component in a sliding manner and is used for transmitting and collecting a detection signal towards the detection station; the control assembly is electrically connected with the X-axis sliding rod component, the Y-axis sliding rod component, the Z-axis sliding rod component and the detection assembly. The three-axis measuring device is simplified, the operation is convenient, and the cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to 3D measurement technical field especially relates to a three -axis measuring device. BACKGROUND

[0002] In the industrial and manufacturing field, the three -coordinate measuring machine (Coordinate Measuring Machine, is called CMM) is a kind of high-precision measuring equipment widely used, for detecting the geometric dimension and shape of workpiece. Specifically, three -coordinate measuring machine is in the space range of hexahedron, can show the measuring ability such as geometric shape, length and circular scale division. The existing three -coordinate measuring machine realizes accurate measurement to workpiece by high-precision sensor and complex control system, and data is handled by computer system to obtain high-precision measurement result.

[0003] However, the existing measuring device is complex in structure, so that its operation is difficult, the manufacturing cost is high, the maintenance cost is high, and the space occupation is more, and it is too complex and redundant for small-scale measurement demand, and inconvenient to use.

[0004] Therefore, the prior art still needs to be improved and developed. UTILITY MODEL CONTENT

[0005] In view of the above deficiencies of the prior art, the purpose of the utility model is to provide a three -axis measuring device, which aims at solving the problems of complex structure, multiple space occupation and high use cost of the existing 3D measuring device.

[0006] The technical scheme of the utility model is as follows:

[0007] A three -axis measuring device, wherein, it includes:

[0008] Three -axis support, the three -axis support includes four slide rod components, four the slide rod components can be divided into two X -axis slide rod components, a Y -axis slide rod component and a Z -axis slide rod component according to the extension direction of each other;Wherein, two the X -axis slide rod components are arranged in parallel, and extend along the X -axis direction of space coordinate system;Detection station is formed between two the X -axis slide rod components, for placing the object to be measured;The Y -axis slide rod component is slidably arranged on the X -axis slide rod component, and extends along the Y -axis direction of space coordinate system;The Z -axis slide rod component is slidably arranged on the Y -axis slide rod component, and extends along the Z -axis direction of space coordinate system;

[0009] Detection assembly, slidably arranged on the Z -axis slide rod component, for emitting and collecting detection signal towards the detection station;

[0010] Control assembly, and the X -axis slide rod component, the Y -axis slide rod component, the Z -axis slide rod component, the detection assembly are electrically connected.

[0011] The triaxial measuring device, wherein the control assembly comprises an Arduino control board.

[0012] The triaxial measuring device, wherein the slide rod component comprises:

[0013] A chassis;

[0014] A slide rail provided on the chassis;

[0015] A sliding block slidably nested on the slide rail;

[0016] A driving member provided on the chassis and in transmission connection with the sliding block, for driving the sliding block to reciprocally move along the axial direction of the slide rail.

[0017] The triaxial measuring device, wherein the chassis is provided with a top-open receiving cavity, a through hole is formed on the side wall of the receiving cavity; the slide rail cover is above the receiving cavity; the driving member comprises:

[0018] A motor connected with the chassis and provided on the outer side of the chassis;

[0019] A lead screw, one end of which is connected with the output shaft of the motor, the other end of which passes through the through hole to the receiving cavity and is engaged with the sliding block, for driving the sliding block to reciprocally move.

[0020] The triaxial measuring device, wherein the sliding block comprises:

[0021] A main body, the main body is provided with a mounting channel, the mounting channel is used for assembling the slide rail;

[0022] A connecting portion provided on one side of the main body facing the receiving cavity; the connecting portion is provided with a threaded hole, and the threaded hole is used for assembling the lead screw;

[0023] The threaded hole and the mounting channel have the same extension direction.

[0024] The triaxial measuring device, wherein the receiving cavity is provided with a first limiting seat and a second limiting seat at two ends respectively, the first limiting seat and the second limiting seat are both sleeved on the lead screw, and are used for abutting against the sliding block.

[0025] The triaxial measuring device, wherein the first limiting seat and the second limiting seat have the same height, and the top surface of the first limiting seat and the top surface of the second limiting seat are both higher than the opening of the receiving cavity, so as to contact and support the slide rail.

[0026] The three-axis measuring device, wherein the cross-sectional shape of the slide rail is a U shape, the shape of the mounting channel is a U shape, and the mounting channel is matched with the slide rail; and the width of the slide rail is equal to the width of the receiving cavity.

[0027] The three-axis measuring device, wherein the detection assembly comprises:

[0028] The connecting seat is connected with the Z-axis slide rod component;

[0029] The detection head is connected with the connecting seat and located on the side of the connecting seat facing the detection station.

[0030] The three-axis measuring device, wherein the detection head is any one of a laser sensor, an optical sensor, a touch sensor, and an ultrasonic sensor.

[0031] Compared with the prior art, the embodiments of the utility model have the following advantages:

[0032] The three-axis measuring device disclosed by the utility model utilizes a three-axis support as a support, so that the detection assembly can move in the space in the front-back, left-right, up-down and other directions, 3D measurement operation is realized, measurement data is collected in time through the control assembly, and the function of simple three-coordinate measurement is realized. Compared with the traditional three-coordinate measuring instrument, the three-axis measuring device disclosed by the utility model has the advantages of simple structure, small operation and maintenance difficulty, reduced professional requirement of the operator, reduced production cost, wide application, small overall space occupation, convenient transportation and use in limited space, and the like. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description. Obviously, the drawings in the following description are only some embodiments in the utility model, and those skilled in the art can obtain other drawings according to these drawings without creating any creative labor.

[0034] Figure 1 It is a structural schematic view of the three-axis measuring device in the utility model;

[0035] Figure 2 It is a structural schematic view of the slide rod component in the utility model;

[0036] Figure 3 It is an axial sectional view of the slide rod component in the utility model;

[0037] Figure 4 It is an exploded view of the slide rod component in the utility model.

[0038] Among them, 10 is a three-axis bracket; 11 is a slide rod component; 111 is a base frame; 1111 is a storage cavity; 1112 is a through hole; 112 is a slide rail; 113 is a slider; 1131 is a main body; 1131a is an installation channel; 1132 is a connecting part; 1132a is a threaded channel; 114 is a driving component; 1141 is a motor; 1142 is a lead screw; 115 is a first limiting seat; 116 is a second limiting seat; 20 is a detection station; 30 is a detection assembly; 31 is a connecting seat; and 32 is a probe head. Detailed Implementation

[0039] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Variations in the shapes shown in the accompanying drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the accompanying drawings, but include changes in shape that may occur during manufacturing.

[0041] As used herein, the term “and / or” includes any one of the relevant items listed and any combination of any two or more items.

[0042] Although terms such as “first,” “second,” and “third” may be used herein to describe individual components, assemblies, regions, layers, or parts, these components, assemblies, regions, layers, or parts are not limited by these terms. Rather, these terms are used only to distinguish one component, assembly, region, layer, or part from another. Therefore, without departing from the teachings of the examples described herein, the first component, assembly, region, layer, or part referred to as the second component, assembly, region, layer, or part may also be referred to as the second component, assembly, region, layer, or part.

[0043] For ease of description, spatial relational terms such as “above,” “upper,” “below,” and “lower” are used herein to describe the relationship between one element and another, as shown in the accompanying drawings. Such spatial relational terms are intended to encompass not only the orientation depicted in the drawings but also different orientations of the device during use or operation. For example, if the device in the drawings is flipped, an element described as being “above” or “upper” relative to another element will subsequently be “below” or “lower” relative to that other element. Therefore, the term “above” includes both “above” and “below” orientations depending on the spatial orientation of the device. The device may also be positioned in other ways, and the spatial relational terms used herein will be interpreted accordingly.

[0044] The terminology used herein is for the purpose of describing various examples only and is not intended to limit this disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms “comprising,” “including,” and “having” enumerate the stated features, quantities, operations, components, elements, and / or combinations thereof, but do not exclude the presence or addition of one or more other features, quantities, operations, components, elements, and / or combinations thereof.

[0045] like Figure 1 As shown, in one embodiment of this utility model application, a triaxial measuring device is disclosed, which includes a triaxial support 10, a detection component 30 and a control component. The triaxial measuring device disclosed in this embodiment uses the triaxial support 10 as a support, so that the detection component 30 can move in the space in the forward, backward, left, right and up directions to realize 3D measurement operation.

[0046] like Figure 1 and Figure 2As shown, the three-axis support 10 disclosed in this embodiment includes four slide rod components 11. These four slide rod components 11 can be divided into two X-axis slide rod components, one Y-axis slide rod component, and one Z-axis slide rod component according to their respective extension directions. The two X-axis slide rod components are arranged in parallel and extend along the X-axis direction of the spatial coordinate system. A detection station 20 is formed between the two X-axis slide rod components for placing the object to be measured. The Y-axis slide rod component is slidably mounted on the X-axis slide rod component and extends along the Y-axis direction of the spatial coordinate system. The Z-axis slide rod component... The component is slidably mounted on the Y-axis slide bar component and extends along the Z-axis direction of the spatial coordinate system; the detection component 30 is slidably mounted on the Z-axis slide bar component and is used to transmit and collect detection signals toward the detection station 20; and the control component is electrically connected to the X-axis slide bar component, the Y-axis slide bar component, the Z-axis slide bar component, and the detection component 30. The control component controls the position of the detection component 30 on the three-axis support 10 and collects measurement data in a timely manner, thereby fully realizing the function of simple three-coordinate measurement.

[0047] In this embodiment, two X-axis slide rod components are arranged in parallel, serving as supports for the Y-axis slide rod component. The two ends of the Y-axis slide rod component rest on the two X-axis slide rod components respectively, and move simultaneously to adjust the X-axis coordinates of the Y-axis slide rod component and the detection component. The Z-axis slide rod component is positioned on the Y-axis slide rod component; moving the Z-axis slide rod component and the detection component along the Y-axis direction adjusts the Y-axis coordinate. Finally, the detection component can also slide on the Z-axis slide rod component to adjust its Z-axis coordinate.

[0048] In summary, in this embodiment, by setting slide rod components 11 along the X-axis, Y-axis and Z-axis of the spatial coordinate system respectively, the coordinate position of the detection component 30 in the three-dimensional space is precisely adjusted, thereby realizing the 3D measurement of the object to be measured on the detection station 20.

[0049] In this embodiment, the three-axis support 10 is composed of four sliding rod components 11, which has a simple structure and a relatively simple control method, making it easy to operate and reducing the requirements for the operator's professional skills; moreover, the production cost is low, which helps to reduce the size of the equipment and make the device more economical and practical.

[0050] Specifically, as one implementation of this embodiment, the control component disclosed includes an Arduino control board. Arduino is a convenient, flexible, and easy-to-use open-source electronic prototyping platform that can connect to various sensors to perceive the environment and control lights, motors, and other devices to provide feedback and influence the environment. In this embodiment, the slider component 11 is driven by the Arduino control board. Preferably, the slider component 11 can be driven by a motor, which simplifies the structure and operation, enables 3D measurement, improves the cost-effectiveness of the device, and is suitable for small-scale measurement needs.

[0051] Specifically, in this embodiment, the Arduino control board controls the motor output power of the slider component 11 to precisely adjust the relative position of the detection component 30, thereby realizing the movement of the detection component 30 and the acquisition of its coordinates. After acquiring the target point, it is sent to an external data terminal via a data connection. The data terminal processes the data, performs coordinate transformation, generates a model, and displays and prints a measurement data report. Conversely, for workpieces with a model to be processed, the model is imported into the software, and automatic point-marking path planning is performed. After the path is planned, rapid measurement is performed, and the workpiece and model are displayed for comparison to determine the error value of each point. Finally, the error value is displayed on the screen, and a measurement report is printed for subsequent operations. It can be seen that the use of the Arduino control board as the control system in this embodiment makes the operation of the equipment more intuitive and convenient, and reduces the overall system cost.

[0052] like Figure 2 As shown, in another embodiment of this invention, the slide bar component 11 includes: a base frame 111, a slide rail 112, a slider 113, and a drive member 114. The slide rail 112 is disposed on the base frame 111; the slider 113 is slidably nested on the slide rail 112; the drive member 114 is disposed on the base frame 111 and is connected to the slider 113 for driving the slider 113 to reciprocate along the axial direction of the slide rail 112.

[0053] The slider component 11 disclosed in this embodiment can be placed horizontally or vertically. To meet the requirements of different placement angles, a slide rail 112 is fixed on the base frame 111, and the slider 113 is fitted onto the slide rail 112, thereby maintaining the connection between the slider 113 and the slide rail 112 and preventing the slider 113 from falling off. The movement of the slider 113 is mechanically driven by the drive component 114, which has high control precision and stable transmission effect, and is not affected by the placement position or angle. In other words, the slider component 11 disclosed in this embodiment has an integrated structure with tight fit among its components, and can be used in any combination at any angle without failing to function properly. Therefore, it can meet the construction requirements of the three-axis bracket 10, simplify the structure of the three-axis bracket 10, and reduce manufacturing costs.

[0054] like Figure 3 and Figure 4As shown, in another embodiment of this invention, a storage cavity 1111 with a top opening is provided on the base frame 111, and a through hole 1112 is formed on the side wall of the storage cavity 1111; the slide rail 112 covers the top of the storage cavity 1111; the driving member 114 includes a motor 1141 and a lead screw 1142, the motor 1141 is connected to the base frame 111 and is located on the outside of the base frame 111; one end of the lead screw 1142 is connected to the output shaft of the motor 1141, and the other end passes through the through hole 1112 to the storage cavity 1111 and engages with the slider 113 to drive the slider 113 to reciprocate.

[0055] In this embodiment, a receiving cavity 1111 is provided to accommodate the lead screw 1142, and a slide rail 112 is placed over the receiving cavity 1111 to conceal the lead screw 1142, thereby reducing dust ingress and protecting the drive component 114. Simultaneously, the transmission is achieved by the engagement of the slider 113 with the lead screw 1142, resulting in high controllability of the transmission. It can be started or stopped at any position, which helps improve control accuracy during the measurement process.

[0056] Specifically, the motor 1141 disclosed in this embodiment includes, but is not limited to, a stepper motor. The motor 1141 is electrically connected to the control component. By adjusting the output power of the motor 1141 through the control component, the rotational speed of the lead screw 1142 is controlled, thereby achieving high-precision control of the position of the slider 113. The motor 1141 is positioned on the outside of the base frame 111 for easy installation and maintenance. It is already connected to an external wire. At the same time, the lead screw 1142 is stored in the storage cavity 1111 to improve stability during rotation and reduce the probability of damage.

[0057] Specifically, in this embodiment, the storage cavity 1111 is elongated, with a through hole 1112 at one end and a slot or socket at the other end. One end of the lead screw 1142 is inserted into the through hole 1112 and the other end is inserted into the slot or socket to maintain stability. It is suspended in the storage cavity 1111 to leave space for assembling the slider 113.

[0058] Specifically, in this embodiment, a bearing can be installed inside the through hole 1112. The outer ring of the bearing abuts against the side wall of the through hole 1112, and the inner ring of the bearing abuts against the lead screw 1142, thereby reducing the resistance when the lead screw 1142 rotates and making it convenient to use.

[0059] like Figure 4As shown, in another embodiment of this invention, the slider 113 includes a main body 1131 and a connecting part 1132. The main body 1131 is provided with an installation channel 1131a, which is used to assemble the slide rail 112. The connecting part 1132 is provided on the side of the main body 1131 facing the receiving cavity 1111. The connecting part 1132 is provided with a threaded hole 1132a, which is used to assemble the lead screw 1142. The threaded hole 1132a and the installation channel 1131a extend in the same direction.

[0060] In this embodiment, the slider 113 is divided into two parts: a main body 1131 and a connecting part 1132. It can be integrally formed by a mold, resulting in a robust structure. The main body 1131 is sleeved with the slide rail 112, and the connecting part 1132 is sleeved with the lead screw 1142. When the lead screw 1142 rotates, it generates a thrust on the connecting part 1132. The direction of the thrust is the same as the axial direction of the lead screw 1142 and also the axial direction of the slide rail 112. Therefore, the slider 113 can be pushed to move relative to the slide rail 112.

[0061] Specifically, in this embodiment, the installation channel 1131a is adapted to the slide rail 112, and the threaded hole 1132a is adapted to the lead screw 1142, so that the slider 113 is constrained and will not detach from the slide rail 112 or the lead screw 1142. During use, it always maintains a stable connection and high-precision fit, which is conducive to the long-term stable use of the device.

[0062] For example Figure 3 and Figure 4 As shown, in another embodiment of this invention, the two ends of the receiving cavity 1111 are respectively provided with a first limiting seat 115 and a second limiting seat 116. The first limiting seat 115 and the second limiting seat 116 are both sleeved on the lead screw 1142 and used to abut against the slider 113.

[0063] In this embodiment, the first limiting seat 115 and the second limiting seat 116 serve a protective function, preventing the slider 113 from shifting excessively and avoiding collision with the base frame 111. Specifically, the first limiting seat 115 and the second limiting seat 116 can be made into a cubic frame to allow the lead screw 1142 to pass through the frame. The first limiting seat 115 and the second limiting seat 116 are fixed to both ends of the receiving cavity 1111 by welding or bonding.

[0064] Specifically, as another implementation of this embodiment, the first limiting seat 115 and the second limiting seat 116 are disclosed to have the same height, and the top surface of the first limiting seat 115 and the top surface of the second limiting seat 116 are both higher than the opening of the receiving cavity 1111, so as to contact and support the slide rail 112.

[0065] In this embodiment, the first limiting seat 115 and the second limiting seat 116 both protrude at least partially above the opening of the receiving cavity 1111 to contact the bottom surface of the slide rail 112, thereby providing support for the slide rail 112, increasing the stability of the slide rail 112, and preventing the slide rail 112 from deforming and affecting the smoothness of movement.

[0066] For example Figure 4 As shown, in another embodiment of this invention, the slide rail 112 has a cross-sectional shape of C-shape, and the mounting channel 1131a has a C-shape, which is adapted to the slide rail 112; and the width of the slide rail 112 is equal to the width of the storage cavity 1111.

[0067] In this embodiment, the slide rail 112 is matched with the slider 113, and the cross-sectional shape of the slide rod is set to be U-shaped, which constrains each other with the installation channel 1131a, so that the slider 113 can only move along the axial direction of the slide rail 112, avoiding deviation, and further improving the stability and control accuracy of the slide rod component 11.

[0068] like Figure 1 As shown, in another embodiment of this invention, the detection component 30 includes a connecting seat 31 and a probe 32. The connecting seat 31 is connected to the Z-axis slide rod component 11. The probe 32 is connected to the connecting seat 31 and is located on the side of the connecting seat 31 facing the detection station 20.

[0069] In this embodiment, the connecting seat 31 is welded or integrally formed onto the slider 113, located on the side of the slider 113 opposite to the receiving cavity 1111. On the Z-axis slide rod component 11, the connecting seat 31 is positioned horizontally. A probe 32 is provided on the bottom surface of the connecting seat 31, which can vertically emit detection signals downwards to accurately measure the object to be measured in the detection station 20, thereby facilitating the acquisition of accurate detection results.

[0070] Specifically, as another implementation of this embodiment, the probe 32 is disclosed as any one of a laser sensor, an optical sensor, a touch sensor, and an ultrasonic sensor. The triaxial measuring device disclosed in this embodiment has a simple structure, good compatibility, can be adapted to various testing instruments as needed, can adapt to various working environments, and has high flexibility.

[0071] In summary, this application discloses a triaxial measuring device, comprising a triaxial support 10, a detection component 30, and a control component. The triaxial support 10 includes four sliding rod components 11, which can be divided into two X-axis sliding rod components 11, one Y-axis sliding rod component 11, and one Z-axis sliding rod component 11 according to their respective extension directions. The two X-axis sliding rod components 11 are arranged in parallel and extend along the X-axis direction of the spatial coordinate system. A detection station 20 is formed between the two X-axis sliding rod components 11 for placing the object to be measured. The Y-axis slide bar component 11 is slidably mounted on the X-axis slide bar component 11 and extends along the Y-axis direction of the spatial coordinate system; the Z-axis slide bar component 11 is slidably mounted on the Y-axis slide bar component 11 and extends along the Z-axis direction of the spatial coordinate system; the detection component 30 is slidably mounted on the Z-axis slide bar component 11 and is used to transmit and collect detection signals toward the detection station 20; the control component is electrically connected to the X-axis slide bar component 11, the Y-axis slide bar component 11, the Z-axis slide bar component 11, and the detection component 30. Using the three-axis bracket 10 as support, the detection component 30 can move in the front-back, left-right, and up-down directions in space to achieve 3D measurement operations. Measurement data is collected in a timely manner through the control component, thus fully realizing the function of simple three-coordinate measurement. It has the advantages of simple structure, low operation and maintenance difficulty, reduced professional requirements for operators, and lower production costs, which is conducive to widespread application.

[0072] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0073] It should be noted that this utility model uses a triaxial measuring device as an example to introduce the specific structure and working principle of the utility model, but the application of this utility model is not limited to triaxial measuring devices, and can also be applied to the detection, production and use of other similar workpieces.

[0074] It should be understood that this invention is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this invention is limited only by the appended claims.

[0075] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A triaxial measuring device, characterized in that The application relates to a three-axis support, a detection assembly and a control assembly. The three-axis support comprises four slide rod components, which are divided into two X-axis slide rod components, one Y-axis slide rod component and one Z-axis slide rod component according to respective extension directions; wherein the two X-axis slide rod components are arranged in parallel and extend along the X-axis direction of a space coordinate system; a detection station is formed between the two X-axis slide rod components and used for placing an object to be detected; the Y-axis slide rod component is slidably arranged on the X-axis slide rod component and extends along the Y-axis direction of the space coordinate system; and the Z-axis slide rod component is slidably arranged on the Y-axis slide rod component and extends along the Z-axis direction of the space coordinate system. The detection assembly is slidably arranged on the Z-axis slide rod component and used for emitting and collecting detection signals towards the detection station. The control assembly is electrically connected with the X-axis slide rod component, the Y-axis slide rod component, the Z-axis slide rod component and the detection assembly.

2. The triaxial measuring device of claim 1, wherein, The control assembly comprises an Arduino control board.

3. The triaxial measuring device of claim 1, wherein, The slide rod component comprises a base frame, a slide rail arranged on the base frame, a slide block slidably nested on the slide rail and a driving member arranged on the base frame and in transmission connection with the slide block and used for driving the slide block to reciprocally move along the axial direction of the slide rail. The base frame is provided with a receiving cavity with an open top, a through hole is formed in the side wall of the receiving cavity, the slide rail covers the top of the receiving cavity, and the driving member comprises a motor connected with the base frame and arranged on the outer side of the base frame and a screw rod with one end connected with the output shaft of the motor and the other end penetrating through the through hole into the receiving cavity and engaged with the slide block and used for driving the slide block to reciprocally move. The slide block comprises a main body provided with a mounting channel used for assembling the slide rail, a connecting portion arranged on one side of the main body towards the receiving cavity, and a threaded hole provided on the connecting portion and used for assembling the screw rod. The threaded hole and the mounting channel have the same extension direction. The two ends of the receiving cavity are respectively provided with a first limiting seat and a second limiting seat, the first limiting seat and the second limiting seat are both sleeved on the screw rod and used for abutting against the slide block.

4. The triaxial measuring device of claim 3, wherein, The first limiting seat and the second limiting seat have the same height, and the top surfaces of the first limiting seat and the second limiting seat are both higher than the opening of the receiving cavity so as to contact and support the slide rail. The cross section of the slide rail is in the shape of a Chinese character 'fang', the mounting channel is also in the shape of a Chinese character 'fang' and is matched with the slide rail, and the width of the slide rail is equal to the width of the receiving cavity. The detection assembly comprises a connecting seat connected with the Z-axis slide rod component and a detection head connected with the connecting seat and located on the side of the connecting seat towards the detection station.

5. The triaxial measuring device of claim 4, wherein, The detection head is any one of a laser sensor, an optical sensor, a touch sensor and an ultrasonic sensor. ​ ​ ​ 6. The triaxial measuring device of claim 4, wherein, ​ 7. The triaxial measuring device of claim 6, wherein, ​ 8. The triaxial measuring device of claim 5, wherein, ​ 9. The triaxial measuring device of claim 1, wherein, ​ ​ ​ 10. The triaxial measuring device of claim 9, wherein, ​

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