Smart card gripper and chuck

Abstract

The utility model relates to clamping structure technical field, concretely relates to a kind of intelligent card jaw and chuck, wherein intelligent card jaw, including card jaw body and monitoring module, test area is provided on card jaw body;Monitoring module includes acceleration test module, strain test module and electric quantity module, the monitoring end of acceleration test module is connected test area;Strain test module is connected on test area;Electric quantity module is electrically connected acceleration test module and strain test module;Protective housing is installed on card jaw body, and protective housing at least will acceleration test module, strain test module, electric quantity module and test area are enclosed;Through acceleration test module, strain test module connects test area to thereby real-time monitoring the vibration signal and strain signal of card jaw body in clamping process, whether the movement of card jaw can be judged is stable, whether there is wear and tear in card jaw body, and protection to each module in processing process is carried out by protective housing.

Description

Technical Field

[0001] This utility model relates to the field of clamping structure technology, specifically to an intelligent chuck and chuck. Background Technology

[0002] In the field of machining, chucks, as a commonly used clamping device, are widely used on various machine tools such as lathes and milling machines, undertaking the task of accurately clamping various workpieces. Traditional chucks mainly rely on the synchronous movement of their jaws to achieve the clamping operation of the workpiece. Ideally, the jaws should be able to apply clamping force simultaneously and evenly, so that the workpiece is in a stable force balance state, thereby ensuring the accuracy and quality of the machining process. However, in actual use, the jaws of traditional chucks have revealed many defects that are difficult to solve effectively. Firstly, traditional chuck jaws lack real-time monitoring capabilities. Users cannot directly obtain key status information of the jaws during workpiece clamping and must rely on personal experience and intuition, making it difficult to ensure consistent clamping force across all jaws. Uneven clamping forces can easily lead to workpiece displacement and wobbling during machining, severely impacting machining accuracy and potentially causing workpiece failure. Secondly, due to a lack of effective data support, traditional chuck jaws cannot accurately assess their structural performance or monitor and identify wear in real time. This further exacerbates problems such as unstable clamping force and uneven workpiece stress, affecting machining stability and reliability. Furthermore, traditional chucks primarily rely on operator experience and trial-and-error adjustments to position the jaws, making it difficult to quickly and accurately adjust them to the optimal position. The adjustment process is time-consuming and labor-intensive, with inconsistent accuracy, reducing the overall system efficiency. Utility Model Content

[0003] To solve at least one of the problems mentioned above, this utility model provides an intelligent chuck and chuck.

[0004] The technical solution of this utility model is as follows:

[0005] On one hand, this utility model provides an intelligent gripper, characterized in that: it includes a gripper body with a test area disposed thereon; a monitoring module including an acceleration test module, a strain test module, and a power module, wherein the detection end of the acceleration test module is connected to the test area; the strain test module is connected to the test area; the power module is electrically connected to the acceleration test module and the strain test module; and a protective shell is installed on the gripper body and at least encloses the acceleration test module, the strain test module, the power module, and the test area.

[0006] Furthermore, the acceleration testing module includes a triaxial acceleration sensor for monitoring the X, Y, and Z-axis vibrations of the test area;

[0007] And / or, the strain testing module includes two sets of strain gauges horizontally connected to the test area;

[0008] And / or, the monitoring module further includes a data acquisition board, which is electrically connected to the acceleration testing module and / or the strain testing module.

[0009] Furthermore, the power module includes a capacitor, a display screen, and a waterproof button electrically connected to the display screen, with at least a portion of the waterproof button exposed outside the protective housing.

[0010] Furthermore, the power module also includes a waterproof power supply port electrically connected to the capacitor.

[0011] Furthermore, the intelligent gripper also includes an external receiver, which is electrically connected to the acceleration testing module, the strain testing module, and the host computer.

[0012] Furthermore, the gripper body includes a horizontally arranged clamping seat and a chuck connected above the clamping seat, and the working side of the chuck is detachably and fixedly connected with a clamping jaw.

[0013] Furthermore, the working side of the chuck has a guide constraint groove; the clamping member has a limiting member that engages with the guide constraint groove; and / or, the chuck and the clamping member are connected by a bolt structure.

[0014] Furthermore, the gripper body includes a horizontally arranged clamp and a chuck connected above the clamp, and the test area is located at the connection between the clamp and the chuck.

[0015] Furthermore, the protective housing includes a first housing and a second housing respectively installed on both sides of the claw body.

[0016] According to another aspect of the present invention, a chuck is also provided, including a chuck body, wherein a plurality of jaws are arranged in a ring on the chuck body, and the jaws can move simultaneously along the radial direction of the chuck body; and at least one of the jaws is a smart jaw as described in any of the above claims; the remaining jaws may have counterweights corresponding to the weight increase of the smart jaws or be configured as the smart jaws.

[0017] The beneficial effects achieved by this utility model are as follows:

[0018] This invention relates to an intelligent chuck jaw. A test area is set on the jaw body, and the monitoring end of an acceleration testing module is connected to the test area to monitor its vibration signal in real time, for example, to determine whether the movement of the jaw body is smooth. A strain testing module can monitor the strain force signal of the jaw body in real time, helping to determine the clamping force when clamping the workpiece. A power module provides power to the acceleration and strain testing modules to meet their power needs during processing. A protective shell encloses the acceleration, strain, and power modules, as well as the test area, effectively blocking external interference factors such as flying chips and coolant, preventing them from directly contacting internal components, thus ensuring that each module is always in good working condition and extending the service life of the equipment. This application uses the acceleration and strain testing modules connected to the test area to monitor the vibration and strain signals of the jaw body in real time during the locking process, which can determine whether the jaw movement is smooth and whether there is wear on the jaw body, allowing for early targeted maintenance or replacement measures. Furthermore, this intelligent chuck jaw can also use force signal values ​​to evaluate the horizontal state of the entire chuck structure, helping users to identify potential structural problems in advance. Attached Figure Description

[0019] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] One or more embodiments are illustrated by way of example with reference numerals in the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0022] Figure 1 This is a first three-dimensional structural schematic diagram of the intelligent gripper of this application;

[0023] Figure 2 This is a schematic diagram of the second three-dimensional structure of the intelligent gripper of this application;

[0024] Figure 3 This is an exploded structural diagram of the first part of the smart gripper in this application;

[0025] Figure 4 This is an exploded structural diagram of the second part of the smart gripper in this application;

[0026] Figure 5 This is a three-dimensional structural diagram of the card tray used in this application;

[0027] Figure 6 This is a three-dimensional structural diagram of the chuck after part of the shell has been removed.

[0028] In the picture,

[0029] 100. Claw body; 110. Test area; 120. Clamp; 130. Chuck; 131. Guide constraint groove; 140. Clamping component; 141. Limiting component; 200. Monitoring module; 210. Acceleration test module; 220. Strain test module; 230. Power module; 231. Capacitor; 232. Display screen; 233. Waterproof button; 234. Waterproof power supply port; 240. Data acquisition board; 300. Protective housing; 310. First housing; 320. Second housing; 330. Third housing; 400. Chuck body. Detailed Implementation

[0030] 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 a person of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0031] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed.

[0032] For ease of description, spatial relative terms may be used in this text to describe the relative position or movement of one element or feature relative to another element or feature, as shown in the figure. These relative terms include, for example, "inside," "outside," "middle," "outer," "below," "below," "above," "front," "back," etc. Such spatial relative terms are intended to include different orientations of the device in use or operation, other than those depicted in the figure. For example, if the device in the figure undergoes a positional flip, orientation change, or change of motion, these directional indications will change accordingly. For instance, an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented "above other elements or features" or "above other elements or features." Therefore, the example term "below" can include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions), and the spatial relative descriptors used in this text will be interpreted accordingly.

[0033] This application discloses an intelligent gripper, including a gripper body 100 and a monitoring module 200. The gripper body 100 is provided with a test area 110. The monitoring module 200 includes an acceleration test module 210, a strain test module 220 and a power module 230. The monitoring end of the acceleration test module 210 is connected to the test area 110. The strain test module 220 is connected to the test area 110. The power module 230 is electrically connected to the acceleration test module 210 and the strain test module 220. A protective shell 300 is installed on the gripper body 100, and the protective shell 300 at least encloses the acceleration test module 210, the strain test module 220, the power module 230 and the test area 110.

[0034] In this embodiment, a test area 110 is provided on the jaw body 100. The monitoring end of the acceleration test module 210 is connected to the test area 110 to monitor its vibration signal in real time, for example, to determine whether the movement of the jaw body 100 is stable. The strain test module 220 can monitor the strain force signal of the jaw body 100 in real time, which helps to determine the clamping force when clamping the workpiece. The power module 230 provides power to the acceleration test module 210 and the strain test module 220 to meet their power needs during processing. The protective shell 300 encloses the acceleration test module 210, the strain test module 220, the power module 230, and the test area 110, which can effectively block external interference factors such as splashing chips and coolant, and prevent them from directly contacting the internal components, thereby ensuring that each module is always in good working condition and extending the service life of the equipment. This application connects the acceleration test module 210 and the strain test module 220 to the test area 110 to monitor the vibration signal in real time. By monitoring the vibration signals (e.g., X, Y, and Z axes) and strain signals of the chuck body 100 during the locking process, it is possible to determine whether the movement of the chuck is smooth, the magnitude and change process of the clamping force, and ensure that the clamped object is subjected to uniform and balanced force, thereby significantly improving the clamping accuracy and providing a strong guarantee for high-precision machining. At the same time, based on the above data acquired by the system, it is possible to accurately determine whether there is wear on the chuck body 100. That is, if the signal data acquired before and after the chuck body 100 is inconsistent, signs of wear can be quickly detected. Furthermore, if multiple intelligent chucks of this application are used together, the data signals acquired by each intelligent chuck will be inconsistent when wear occurs, so targeted maintenance or replacement measures can be taken in advance to avoid machining quality problems caused by wear of the chuck body 100, extend the service life of the chuck, and reduce maintenance costs. On the other hand, the intelligent chuck can also use force signal values ​​to evaluate the horizontal state of the entire chuck structure, which can help users to detect potential structural problems in advance.

[0035] As for specific real-time signal monitoring methods, for example, the smart gripper also includes an external receiver. The receiver is electrically connected to the acceleration test module 210, the strain test module 220 and the host computer, so that after the monitoring module 200 collects the signal, it is transmitted to the receiver wirelessly and displayed on the host computer software.

[0036] In an optional or preferred embodiment, the monitoring module 200 further includes a data acquisition board 240, which is electrically connected to the acceleration test module 210 and / or the strain test module 220 to acquire their signals.

[0037] In an optional or preferred embodiment, the acceleration testing module 210 includes a triaxial acceleration sensor for monitoring the X, Y, and Z-axis vibrations of the test area 110, thereby improving the vibration signal data and facilitating a full evaluation of the real-time vibration state of the gripper body 100. The triaxial acceleration sensor is installed behind the acquisition board 240, and its specific location is not clearly marked in the figure. The triaxial acceleration sensor can be an acceleration acquisition board, which only requires power to activate and can read signals in real time after being connected via software. The core function of this module is to monitor the movement and adjustment position of the gripper body 100. Through the acceleration acquisition board, the three-axis (X, Y, Z directions) vibration signals can be collected simultaneously, and the acceleration changes in the three orthogonal directions during the movement of the gripper body 100 can be sensed in real time.

[0038] In an optional or preferred embodiment, the strain testing module 220 and the acceleration testing module 210 together constitute a key component of the monitoring module 200. The strain testing module 220, for example, uses a strain gauge as its core element. When installing the strain gauge, it must be precisely and firmly attached to the test area 110 using adhesive. The strain gauge can accurately acquire the force signal changes generated by the claw body 100 during its movement, thereby realizing the real-time monitoring function of the claw body's movement state. Specifically, for example... Figure 4 Strain gauges must be attached to the test area 110 and its horizontal counterpart (opposite strain gauges not shown), using a resistance-based attachment method and completing the bridging operation. The purpose of setting up opposing strain gauges is to eliminate the influence of gravity and only judge the lateral force, thereby assisting in judging the effect and accuracy of the adjustment of the claw body 100. It should be noted that there are no restrictions on the bridging method, size, and type of strain gauges; the bonding method and the type of adhesive used are also not limited. In addition, the protective shell 300 is provided with a wire hole for the routing of strain gauge signal lines. The signal lines need to be connected to the acquisition board 240. When connecting the corresponding pins, soldering or other suitable connection methods can be used to ensure the stability and reliability of signal transmission. The specific method is not strictly specified.

[0039] In an optional or preferred embodiment, the power supply type built into the power module 230 can be a capacitor, a battery, etc. For example, the power module 230 includes a capacitor 231, a display screen 232, and a waterproof button 233 electrically connected to the display screen 232. At least a portion of the waterproof button 233 is exposed outside the protective housing 300. The power module 230 also includes a waterproof power supply port 234 electrically connected to the capacitor 231.

[0040] In this embodiment, the power module is mainly used for power control and display functions. For example, clicking the waterproof button 233 will turn on the display screen 232. The display screen 232 will clearly and intuitively present the voltage status of the capacitor 231 in the form of color blocks and numerical values, thus informing the user of the capacitor 231's usage status. For example, when the voltage is too low, the color blocks on the display screen 232 will change, reminding the user to charge it in time. When the capacitor 231's power is insufficient, the user can connect it to an external power source through the waterproof power supply port 234 to charge the capacitor 231. Here, the waterproof power supply port 234 is illustrated using an aviation connector as an example; in actual use, it can be replaced with other interfaces according to user needs and is not limited. Furthermore, the attached diagram uses a 3-pin aviation connector for illustration; in actual applications, only a 2-pin connector is needed, requiring only connection to the positive and negative terminals for power supply. The number of inner pins in the aviation connector is also not limited. It should be noted that capacitor 231 has sufficient power supply capacity during actual operation; the waterproof power supply port 234 is only used as an alternative power supply method. This port uses a waterproof connector design to effectively prevent moisture from entering the module and avoid damage to the equipment due to short circuits. Pressing and holding the waterproof button 233 activates the load; at this time, the display 232 will show LDON, indicating that the acquisition board 240 has been successfully activated. Users can make relevant settings through the host computer software to carry out data acquisition and reading. Pressing and holding the waterproof button 233 again will shut down the load and stop data acquisition. It should be understood that the button press method is not limited; it can be a single click, double click, or long press, etc. The above is just an example.

[0041] In an optional or preferred embodiment, the chuck body 100 includes a horizontally arranged clamping seat 120 and a chuck 130 connected above the clamping seat 120. The working side of the chuck 130 is detachably and fixedly connected to a clamping jaw 140.

[0042] In this embodiment, the clamping element 140 is detachably and fixedly connected to the working side of the chuck 130, so that the clamping element 140 can be replaced. For example, it can be replaced according to the material being clamped by the user. For example, a steel clamping element is suitable for hard materials, while an aluminum clamping element is suitable for soft materials. Alternatively, it can be turned according to the diameter of the clamped item to adapt to the shape. The replaceability of the clamping element improves practicality and effectively reduces costs.

[0043] In an optional or preferred embodiment, a guide constraint groove 131 is formed on the working side of the chuck 130; the clamping member 140 has a limiting member 141 that engages with the guide constraint groove 131; such as Figure 3As shown, the chuck 130 and the clamping member 140 are positioned by a guide insertion, which is quick and effective. For example, the example in the figure is a combination of a dovetail groove and a matching slide rail, which allows the clamping member 140 to have only vertical movement freedom. Of course, if the two have a large frictional force, it can restrict its vertical movement to a certain extent and fix the clamping member 140. At the same time, the chuck 130 and the clamping member 140 can also be connected by bolt structure, snap-fit ​​structure, etc. to further fix the clamping member 140 and prevent it from moving during the processing.

[0044] In an optional or preferred embodiment, the gripper body 100 includes a horizontally arranged clamp 120 and a chuck 130 connected above the clamp 120. The test area 110 can be set at many positions on the chuck 130 and is not limited. To reduce assembly difficulty and ensure better monitoring effect, the test area 110 can be located at the connection between the clamp 120 and the chuck 130.

[0045] In an optional or preferred embodiment, the protective housing 300 includes a first housing 310 and a second housing 320 respectively installed on both sides of the claw body 100. By installing the acceleration test module 210, the strain test module 220, and the electrical module 230 on both sides of the claw body 100, the weight of the claw body 100 can be balanced, avoiding affecting the stability of the claw body 100 during high-speed rotation. The protective housing 300 also includes a third housing 330, which is mainly used to enclose the test area 110. Optionally, the first housing 310, the second housing 320, and the third housing 330 can be separate to facilitate disassembly during production, assembly, and maintenance. In other embodiments, any two or all three can be connected.

[0046] This application also discloses a chuck, including a chuck body 400, on which a plurality of jaws are arranged in a ring, and the jaws can move simultaneously along the radial direction of the chuck body 400; and at least one of them is the aforementioned intelligent jaw; the remaining jaws may have counterweights corresponding to the intelligent jaws or be configured as intelligent jaws.

[0047] like Figure 5 , 6As shown, the chuck consists of jaws and a chuck body 400. The number of jaws can be flexibly configured according to processing requirements. This application uses a common three-jaw chuck as an example for illustration. Users can change the chuck type according to specific processing requirements; four-jaw or six-jaw chucks can be selected, and no limitation is made here. Each jaw has a threaded structure at its bottom, which engages with the planar thread on the end face of the chuck body 400. Based on this, the jaws establish a precise transmission relationship with the chuck body 400 via the planar thread pair, ensuring the accuracy and stability of the transmission. In terms of structural layout, the three jaws are evenly distributed at 120° intervals around the chuck body 400 and can be embedded in T-shaped guide slots, ensuring smooth jaw movement and overall structural stability. The chuck body 400 is designed with a tapered hole that fits tightly with the outer tapered surface at the front end of the lathe spindle, providing precise alignment and strong support for high-precision machining. In terms of transmission, torque is transmitted via a key, ensuring efficient and stable power transmission. Finally, nuts are used to firmly lock the chuck body 400 onto the spindle, preventing loosening during machining and ensuring smooth machining operations.

[0048] In the chuck structure of this application, identical monitoring modules can be evenly arranged inside each jaw. By monitoring data from multiple intelligent jaws, the wear degree, clamping stability, and clamping accuracy of the jaws can be comprehensively judged. Users can also consider different working conditions and needs, choosing to retain only one set of intelligent jaws with monitoring modules, while installing counterweights inside the other two jaws. This design effectively ensures the structural balance of the entire chuck system, avoiding problems such as abnormal vibration and uneven force caused by uneven distribution of monitoring modules, thus guaranteeing the stability and reliability of system operation. It is understood that even if only one set of monitoring modules is retained, the three-dimensional vibration and strain signals acquired still have reference value. These signals can reflect signal changes in the jaws during locking and machining processes, providing crucial information for users to adjust jaw positions and control clamping force in real time, thereby achieving high-precision clamping and stable machining of workpieces.

[0049] It should be understood that the terminology used herein is for the purpose of describing particular exemplary embodiments only and is not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms “a,” “an,” and “described” as used herein may also mean including the plural forms. The terms “comprising,” “including,” “containing,” and “having” are inclusive and therefore indicate the presence of the stated features, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not construed as requiring them to be performed in a particular order described or illustrated unless the order of performance is explicitly indicated. It should also be understood that additional or alternative steps may be used.

[0050] Although terms such as first, second, third, etc., may be used in this document to describe multiple elements, components, regions, layers, and / or segments, these elements, components, regions, layers, and / or segments should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or segment from another. Unless the context clearly indicates otherwise, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence. Therefore, the first element, component, region, layer, or segment discussed below may be referred to as the second element, component, region, layer, or segment without departing from the teachings of the exemplary embodiments.

[0051] 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. Intelligent gripper, characterized in that: The system includes a claw body (100) with a test area (110) thereon; a monitoring module (200) including an acceleration test module (210), a strain test module (220) and a power module (230), wherein the detection end of the acceleration test module (210) is connected to the test area (110); the strain test module (220) is connected to the test area (110); and the power module (230) is electrically connected to the acceleration test module (210) and the strain test module (220); and a protective shell (300) is installed on the claw body (100) and at least encloses the acceleration test module (210), the strain test module (220), the power module (230) and the test area (110).

2. The intelligent gripper according to claim 1, characterized in that: The acceleration test module (210) includes a triaxial acceleration sensor for monitoring the X, Y, and Z triaxial vibrations of the test area (110); And / or, the strain testing module (220) includes two sets of strain gauges that are horizontally connected to the test area (110); And / or, the monitoring module (200) further includes a data acquisition board (240) electrically connected to the acceleration test module (210) and / or the strain test module (220).

3. The intelligent gripper according to claim 1, characterized in that: The power module (230) includes a capacitor (231), a display screen (232), and a waterproof button (233) electrically connected to the display screen (232), at least a portion of which is exposed outside the protective housing (300).

4. The intelligent gripper according to claim 3, characterized in that: The power module (230) also includes a waterproof power supply port (234) electrically connected to the capacitor (231).

5. The intelligent gripper according to claim 1, characterized in that: The intelligent gripper also includes an external receiver, which is electrically connected to the acceleration test module (210), the strain test module (220), and the host computer.

6. The intelligent gripper according to any one of claims 1-5, characterized in that: The chuck body (100) includes a horizontally arranged clamp (120) and a chuck (130) connected above the clamp (120). The working side of the chuck (130) is detachably and fixedly connected with a clamping element (140).

7. The intelligent gripper according to claim 6, characterized in that: The working side of the chuck (130) has a guide constraint groove (131); the clamping member (140) has a limiting member (141) that is inserted into the guide constraint groove (131); and / or, the chuck (130) and the clamping member (140) are connected by a bolt structure.

8. The intelligent gripper according to any one of claims 1-5, characterized in that: The chuck body (100) includes a horizontally arranged clamp (120) and a chuck (130) connected above the clamp (120). The test area (110) is located at the connection between the clamp (120) and the chuck (130).

9. The intelligent gripper according to any one of claims 1-5, characterized in that: The protective housing (300) includes a first housing (310) and a second housing (320) respectively installed on both sides of the claw body (100); or, the protective housing (300) includes a first housing (310) and a second housing (320) respectively installed on both sides of the claw body (100), and a third housing (330) surrounding the outside of the test area (110).

10. A chuck, characterized in that, The chuck body (500) includes a chuck body (500) with a plurality of jaws arranged in a ring on the chuck body (500) and the jaws can move simultaneously along the radial direction of the chuck body (500); and at least one of the jaws is the intelligent jaw as described in any one of claims 1-9; the remaining jaws may have counterweights corresponding to the intelligent jaws or be configured as the intelligent jaws.

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