Sensor packaging micro-clamping system

Abstract

The invention discloses a sensor packaging micro-clamping system which comprises a precise displacement platform, a clamping mechanism, a driving mechanism and a lead screw sliding block mechanism. The clamping mechanism comprises a micro clamp holder and a clamp holder mounting seat for mounting the micro clamp holder; the clamp holder mounting seat is mounted on a rotating table of the precise displacement platform in a sliding connection manner and is used for driving the clamp holder mounting seat to displace along X, Y and Z directions and rotate along an R axis by adjusting the precise displacement platform; the micro gripper comprises a first clamping part and a second clamping part which are oppositely arranged; the driving mechanism comprises a motor; the power output end of the motor drives the first clamping part through a lead screw sliding block mechanism to drive the first clamping part to be close to or away from the second clamping part, and clamping or loosening of the micro clamping device is achieved. X-axis adjustment, Y-axis adjustment, Z-axis adjustment and R-axis adjustment can be achieved through the precise displacement platform, fine adjustment of clamping force is achieved by driving the lead screw sliding block mechanism through the motor, the clamping force and operation precision can be precisely controlled, and therefore the overall quality of packaging is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of sensor packaging, and relates to a sensor packaging micro-gripping system, specifically a sensor packaging micro-gripping system for construction machinery. Background Art

[0002] In modern power systems, the vibration monitoring sensor packaging of compact space power transmission and transformation equipment is a key step, which is directly related to the performance and reliability of the sensor. During the vibration sensor packaging process, fine structures need to be processed, such as electrodes with a micron-level thickness, easily damaged micron-level porous materials, and conductive mass blocks with a specific surface roughness. The precise assembly requirements of these structures, such as the alignment between microstructures, pose extremely high requirements for the accuracy and stability of the gripping system. Traditional gripping tools cannot meet these requirements and are prone to introducing additional errors, resulting in packaging failures or a decline in sensor performance.

[0003] Traditional macroscopic operation tools, such as tweezers, although sufficient for some operations, their limitations become particularly obvious in the fine operation of sensor packaging. Due to the operation errors of the operator at the macroscopic scale, these tools often cannot precisely control the gripping force and position, resulting in problems such as displacement, damage, or loose packaging of the sensor during the packaging process. The impact of such operation errors is multi-faceted. First, it directly affects the quality of sensor packaging because any minor deviation during the packaging process may lead to a decline in sensor performance or even failure. Second, due to the need for repeated adjustment and correction of operations, the efficiency of the packaging work is greatly reduced, increasing the production time and cost. In addition, the un-packaged sensor devices are usually relatively fragile and very sensitive to the gripping force. If the gripping force is too large, it may not only cause device damage but also lead to deformation of the internal structure of the device, affecting its long-term stability and reliability. Excessive gripping force may also cause scratches or cracks on the device surface, and these damages may develop into failure points during subsequent use, seriously affecting the service life and performance of the sensor. The high rejection rate not only increases the material cost but also may lead to production delays, affecting customer satisfaction and the market competitiveness of the enterprise. Summary of the Invention

[0004] The present invention provides a sensor packaging micro-gripping system, aiming to achieve the conversion from macroscopic operation to microscopic operation, improve the accuracy and stability of device gripping, and achieve precise packaging of pressure sensors.

[0005] According to the first aspect of the present invention, the technical solution adopted is: A sensor packaging micro-gripping system includes a precision displacement platform, a gripping mechanism, a driving mechanism, and a lead screw slider mechanism; The clamping mechanism includes a micro-gripper and a gripper mounting base for mounting the micro-gripper; the gripper mounting base is slidably connected and mounted on the rotating table of the precision displacement platform, and is used to drive the gripper mounting base to displace in the X, Y, and Z directions and rotate about the R axis by adjusting the precision displacement platform; The micro-gripper includes a first clamping portion and a second clamping portion arranged oppositely; the driving mechanism includes a motor; the power output end of the motor drives the first clamping portion through a screw-slider mechanism, and is used to drive the first clamping portion to approach or move away from the second clamping portion, so as to realize the clamping or releasing action of the micro-gripper.

[0006] Further, the screw-slider mechanism includes: A screw, connected to the power output end of the motor, and a threaded structure is arranged on the outer periphery of the screw; A slider, internally provided with a threaded hole matching the threaded structure of the screw, and is mounted on the screw through the threaded hole.

[0007] Further, the screw-slider mechanism further includes a chute, and the slider is limited in the chute for restricting the linear movement of the slider along the chute direction.

[0008] Further, the sensor packaging micro-gripping system further includes a gripper drive shaft, which is relatively fixedly connected to the slider and is drivingly connected to the first clamping portion of the micro-gripper, and is used to drive the first clamping portion to approach or move away from the second clamping portion under the movement of the slider.

[0009] Further, a slide rail is relatively fixedly arranged on the rotating table of the precision displacement platform, a sliding member matching the slide rail is arranged at the bottom of the gripper mounting base, and the gripper mounting base is slidably connected to the slide rail through the sliding member.

[0010] Further, the micro-gripper further includes a connecting portion for connecting the first clamping portion and the second clamping portion; the connecting portion is relatively fixedly mounted in the gripper mounting base.

[0011] Further, the micro-gripper adopts a tweezer structure.

[0012] Further, an installation groove is arranged in the gripper mounting base, and the connecting portion of the micro-gripper is limited and mounted in the installation groove.

[0013] Further, the motor adopts a DC motor.

[0014] Further, the motor is provided with a forward and reverse switch, and is used to drive the first clamping portion to approach or move away from the second clamping portion by controlling the forward and reverse rotation of the motor.

[0015] Furthermore, the material of the micro-gripper is an anti-static material, and the first clamping part and the second clamping part adopt a flexible structure.

[0016] The sensor packaging micro-gripping system provided by the present invention has the following advantages: By installing the clamping mechanism on the rotating table of the precision displacement platform, the system can achieve X, Y, Z, and R-axis adjustment. The two clamping parts of the micro-gripper are located on both sides of the device to be clamped. The motor drives the screw-slider mechanism to drive the micro-gripper for fine adjustment, which can precisely control the clamping force and operation accuracy, effectively avoiding the damage that traditional macroscopic operation tools may cause to the sensor during the clamping process, and improving the efficiency and quality of the packaging process at the same time. Through the technical solution of the present invention, efficient and precise packaging of the pressure sensor can be realized, the production cost can be reduced, and the market competitiveness of the product can be improved. Microscopic control of the clamping force and position is achieved, thus significantly improving the accuracy of the operation and reducing the human operation error. Since the clamping force can be precisely controlled, the potential damage to the sensor during the packaging process is reduced, thereby improving the overall quality of the packaging. And by reducing the need for adjustment and correction operations, the efficiency of the packaging operation is improved, the production cycle is shortened, and the production cost is reduced. At the same time, the packaging requirements of sensors of different sizes and types are considered, and the adjustment module can flexibly adapt to different working environments. Moreover, it can reduce the device damage caused by improper operation, help reduce material loss, and thus reduce costs. Brief Description of the Drawings

[0017] Figure 1 It is a three-dimensional schematic diagram of the first angle of the sensor packaging micro-gripping system according to the embodiment of the present invention; Figure 2 It is a three-dimensional schematic diagram of the second angle of the sensor packaging micro-gripping system according to the embodiment of the present invention; Figure 3 It is a structural schematic diagram of the sensor packaging micro-gripping system according to the embodiment of the present invention; Figure 4 It is an assembly schematic diagram of the driving mechanism, the screw-slider mechanism and the clamping mechanism in the embodiment of the present invention; Figure 5 It is a schematic diagram of the driving mechanism, the screw-slider mechanism and the clamping mechanism in the embodiment of the present invention; Figure 6 It is a schematic diagram of local device clamping in the embodiment of the present invention; The reference numerals of the present invention are respectively denoted as: precision displacement platform 1, clamping mechanism 2, driving mechanism 3, screw-slider mechanism 4, rotary table 11, slide rail 111, micro-gripper 21, first clamping portion 211, second clamping portion 212, connecting portion 213, gripper mounting base 22, sliding member 221, mounting groove 222; motor 31, forward and reverse switch 32; screw 41, slider 42, chute 43, gripper drive shaft 44. Detailed implementation manners

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The description of at least one exemplary embodiment is actually only illustrative and in no way limits the present invention and its application or use. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0019] Unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and values set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that for the sake of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationship. Technologies, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods and devices should be regarded as part of the specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0020] Embodiment 1: As Figures 1 to 5 shown, a micro-gripping system for sensor packaging includes a precision displacement platform 1, a clamping mechanism 2, a driving mechanism 3 and a screw-slider mechanism 4; The clamping mechanism 2 includes a micro-gripper 21 and a gripper mounting base 22 for mounting the micro-gripper; the gripper mounting base 22 is slidably connected and mounted on the rotary table 11 of the precision displacement platform 1, and is used to drive the gripper mounting base 22 to displace in the X, Y, and Z directions and rotate about the R axis by adjusting the precision displacement platform 1; The micro gripper 21 includes a first clamping part 211 and a second clamping part 212 which are oppositely arranged; the driving mechanism 3 includes a motor 31; the power output end of the motor 31 drives the first clamping part 211 through a screw rod slider mechanism 4, and is used to drive the first clamping part 211 to approach or move away from the second clamping part 212, so as to realize the clamping or loosening action of the micro gripper 21.

[0021] Embodiment 2: On the basis of Embodiment 1, the following design is further made in this embodiment.

[0022] As Figure 3 、 Figure 4 shown, the screw rod slider mechanism 4 includes: A screw rod 41, which is connected to the power output end of the motor 31, and a thread structure is arranged on the outer periphery of the screw rod; A slider 42, with a screw hole inside that matches the thread structure of the screw rod, and is installed on the screw rod 41 through the screw hole.

[0023] Embodiment 3: On the basis of Embodiment 2, the following design is further made in this embodiment.

[0024] As Figure 3 shown, the screw rod slider mechanism further includes a chute 43, and the slider is limited in the chute 43, and is used to limit the slider 42 to move linearly along the chute.

[0025] It should be noted that the motor is used to provide power. The rotation of the motor drives the screw rod to start rotating. The screw rod usually has a special spiral shape and engages with the screw hole in the slider. When the screw rod rotates, the slider moves linearly along the chute. The chute and the slider play a role in guiding and supporting the sliding, enabling the slider to move linearly on a fixed track. The chute can limit the rotation of the slider around the screw rod, and only allows the slider to translate along the chute direction when the motor is working. At this time, the slider drives the gripper drive shaft to move synchronously.

[0026] Embodiment 4: On the basis of Embodiments 2 and 3, the following design is further made in this embodiment.

[0027] As Figure 3 、 Figure 4 shown, the sensor-packaged micro gripper system further includes a gripper drive shaft 44, the gripper drive shaft 44 is relatively fixedly connected to the slider 42, and is drivingly connected to the first clamping part 211 of the micro gripper, and is used to drive the first clamping part 211 to approach or move away from the second clamping part 212 under the movement of the slider 42.

[0028] When the motor rotates forward, the slider drives the gripper drive shaft, thereby driving the first clamping part 211 closer to the second clamping part 212 to achieve the clamping action; when the motor rotates in reverse, the slider drives the drive rod, thereby driving the first clamping part 211 away from the second clamping part 212 to achieve the release action.

[0029] Embodiment 5: On the basis of Embodiment 1, the following design is further made in this embodiment.

[0030] As Figures 1 to 3 shown, a slide rail 111 is relatively fixedly arranged on the rotary table 11 of the precision displacement platform, and a sliding member 221 matching with the slide rail is arranged at the bottom of the gripper mounting seat 22. The gripper mounting seat 22 is slidably connected to the slide rail through the sliding member 221. The user can slide the gripper mounting seat 22 on the slide rail 111 to achieve rough adjustment of the position of the microgripper 21.

[0031] Embodiment 6: On the basis of Embodiments 1 to 5, the following design is further made in this embodiment.

[0032] X, Y, Z, and R-axis adjusting members are arranged on the precision displacement platform 1. The strokes of the X and Y axes are ±6.5 mm, the stroke of the Z axis is 10 mm, and the minimum adjustment distance of the X, Y, and Z axes is 10 μm; the R axis can achieve 360° rough adjustment and ±5° fine adjustment.

[0033] When the precision displacement platform is adjusted in four axes through the knob, the slide rail 111 and the gripper mounting seat 22 fixed thereon move accordingly, and at the same time, the microgripper 21 is also driven to move, realizing the position adjustment between the microgripper 21 and the sensor to be clamped.

[0034] The precision displacement platform 1 in this application is a prior art, sourced from Jiangxi Fala Automation Technology Co., Ltd., model LT60-LM. Therefore, the internal structure of the precision displacement platform will not be elaborated in this application.

[0035] Embodiment 7: On the basis of Embodiment 1, the following design is further made in this embodiment.

[0036] As Figure 3 、 Figure 4 shown, the microgripper 21 further includes a connecting portion 213 for connecting the first clamping part 211 and the second clamping part 212; the connecting portion 213 is relatively fixedly installed in the gripper mounting seat 22. It should be noted that the relative fixation of the connecting portion 213 is more conducive to the adjustment of the clamping distance between the first clamping part 211 and the second clamping part 212.

[0037] In this embodiment, the microgripper 21 adopts a tweezer structure.

[0038] As Figure 3 shown, an installation groove 222 is provided in the gripper mount 22, and the connecting portion 213 of the micro-gripper is limited and installed in the installation groove 222. It should be noted that the connecting portion 213 and the second clamping portion 212 of the micro-gripper are limited by the installation groove, so that the connecting portion 213 and the second clamping portion 212 are kept fixed, and precise clamping is achieved by adjusting the distance between the first clamping portion 211 and the second clamping portion 212.

[0039] Embodiment 8: On the basis of Embodiment 1, the following design is also made in this embodiment.

[0040] The motor 31 is a DC motor.

[0041] As Figure 4 、 Figure 5 shown, the motor 31 is provided with a forward and reverse switch 32, which is used to drive the first clamping portion 211 to approach or move away from the second clamping portion 212 by controlling the forward and reverse rotation of the motor.

[0042] In addition, the motor is installed on the circuit board at the right end of the module. There is a power interface on the circuit board. By connecting an adjustable voltage power adapter through the power interface, the driving and speed regulation of the DC motor are realized, and the forward and reverse rotation of the motor is controlled by the forward and reverse switch. Through testing, the clamping speed of the micro-gripper is 10 mm / min to 30 mm / min, and it can slowly act to achieve precise clamping of the sensor device.

[0043] Embodiment 9: On the basis of Embodiment 1, the following design is also made in this embodiment.

[0044] The material of the micro-gripper 21 is an anti-static material, and the first clamping portion 211 and the second clamping portion 212 adopt a flexible structure. It should be noted that the use of anti-static material for the micro-gripper 21 can effectively prevent electrostatic damage to the device during clamping. The first clamping portion 211 and the second clamping portion 212 adopt a flexible structure, which can effectively reduce the damage to the device during clamping.

[0045] Local device clamping is as Figure 6 shown, Figure 6 in which the size of the clamped sensor device is 3×3 mm. During the test process, the system can stably clamp the sensor device without damaging the device structure, and the sensor packaging micro-gripping system is stable and reliable.

[0046] In summary, for the micro-gripping system for sensor packaging provided by the present invention, by installing the gripping mechanism on the rotating table of the precision displacement platform, the adjustment of the X, Y, Z, and R axes can be achieved. The two gripping parts of the microgripper are located on both sides of the device to be gripped. The motor drives the screw-slider mechanism to drive the microgripper to achieve fine adjustment, enabling precise control of the gripping force and operation accuracy, effectively avoiding the damage that may be caused to the sensor by traditional macroscopic operation tools during the gripping process, and at the same time improving the efficiency and quality of the packaging process. Through the technical solution of the present invention, the efficient and precise packaging of the pressure sensor can be realized, the production cost can be reduced, and the market competitiveness of the product can be improved. The microscopic control of the gripping force and position is realized, thus significantly improving the accuracy of the operation and reducing the human operation error. Since the gripping force can be precisely controlled, the potential damage to the sensor during the packaging process is reduced, thereby improving the overall quality of the packaging. And by reducing the need for adjustment and correction operations, the efficiency of the packaging operation is improved, the production cycle is shortened, and thus the production cost is reduced. At the same time, the packaging requirements of sensors of different sizes and types are considered, and the adjustment module can flexibly adapt to different working environments. Moreover, the device damage caused by improper operation can be reduced, which helps to reduce the material loss and thus reduce the cost.

[0047] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and is only used to explain the relative positional relationship and movement conditions between the components in a specific posture. If the specific posture changes, the directional indication will also change accordingly. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention.

[0048] In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0049] In the description of the present invention, it should be noted that, unless otherwise clearly defined and limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific circumstances.

[0050] The above are only the preferred embodiments of the present disclosure / the present application. It should be noted that for those of ordinary skill in the art, without departing from the technical principles of the present disclosure / the present application, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present disclosure / the present application.

Claims

1. A sensor packaging micro-clamping system, characterized in that: The sensor packaging micro-clamping system comprises a precision displacement platform, a clamping mechanism, a driving mechanism and a screw slider mechanism; The clamping mechanism comprises a micro-clamp and a clamp mounting seat for mounting the micro-clamp; the clamp mounting seat is slidably connected and mounted on the rotating table of the precision displacement platform, and is used to drive the clamp mounting seat to move in the X, Y, and Z directions and rotate along the R axis by adjusting the precision displacement platform; The micro-gripper includes a first clamping part and a second clamping part arranged opposite to each other; the driving mechanism includes a motor; the power output end of the motor transmits the first clamping part through a screw slider mechanism, which is used to drive the first clamping part to approach or move away from the second clamping part, thereby realizing the clamping or releasing action of the micro-gripper.

2. The sensor packaging micro-clamping system according to claim 1, characterized in that: The screw slider mechanism comprises: A screw rod is connected to the power output end of the motor, and a threaded structure is arranged on the outer circumference of the screw rod; The slider is provided with a screw hole matching the thread structure of the screw rod, and is mounted on the screw rod through the screw hole.

3. The sensor packaging micro-clamping system according to claim 2, characterized in that: The screw slider mechanism also includes a slide groove, and the slider is limitedly arranged in the slide groove to limit the slider from linearly moving along the slide groove direction.

4. The sensor packaging micro-clamping system according to claim 2, characterized in that: The sensor package micro-clamping system also includes a clamper drive shaft, which is relatively fixedly connected to the slider and drivingly connected to the first clamping part of the micro-clamp, and is used to drive the first clamping part to approach or move away from the second clamping part under the movement of the slider.

5. The sensor packaging micro-clamping system according to claim 1, characterized in that: A slide rail is relatively fixedly arranged on the rotating table of the precision displacement platform, a sliding piece matched with the slide rail is arranged at the bottom of the clamper mounting seat, and the clamper mounting seat is slidably connected with the slide rail through the sliding piece.

6. The sensor packaging micro-clamping system according to claim 1, characterized in that: The micro-gripper further comprises a connecting portion for connecting the first clamping portion and the second clamping portion; the connecting portion is relatively fixedly installed in the clamper mounting seat.

7. The sensor packaging micro-clamping system according to claim 6, characterized in that: The clamp mounting seat is provided with a mounting groove, and the connecting portion of the micro clamp is limitedly mounted in the mounting groove.

8. The sensor packaging micro-clamping system according to claim 1, characterized in that: The motor is a DC motor.

9. The sensor packaging micro-clamping system according to claim 1, characterized in that: The motor is provided with a forward and reverse switch, which is used to control the motor to rotate forward or reverse so that the slider drives the first clamping part to approach or move away from the second clamping part.

10. The sensor packaging micro-clamping system according to any one of claims 1 to 9, characterized in that: The micro-gripper is made of antistatic material, wherein the first clamping part and the second clamping part adopt a flexible structure.

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