Self-adaptive reference high-precision lifting mechanism

Abstract

The utility model is applicable to the technical field of CCD (Charge Coupled Device) alignment, and provides a self-adaptive reference high-precision lifting mechanism which mainly comprises a pressing plate, a driving part, a universal mechanism and a detection device, the driving part drives the pressing plate to lift and move, the universal mechanism is arranged between the pressing plate and the driving part, and the detection device is arranged between the driving part and the universal mechanism; when the driving piece drives the pressing plate to press downwards in the direction of the product and the pressing plate abuts against the product, the pressing plate is driven by the universal mechanism to be adjusted according to the state of the datum planes, it is guaranteed that under the condition that the pressing plate is perpendicular, the angle direction of the pressing plate can be adjusted according to the datum planes with different heights of the product, and the pressing plate can adapt to different datum planes of the product; the compatibility is high; and in the descending process of the pressing plate, the detection device detects the magnitude of the force applied to the product by the pressing plate in real time so as to obtain a force magnitude signal, the driving piece responds to the signal to achieve precise lifting of the pressing plate, and the higher-precision and more stable lifting action of the pressing plate is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of CCD alignment, and in particular relates to a high-precision lifting mechanism with an adaptive benchmark. Background Art

[0002] During the multi-layer PCB lamination process, the boards must be bonded together using various bonding techniques, including riveting, electric heating, and electromagnetic heat fusion. Regardless of the bonding process, each multi-layer board must be individually positioned. The stacking structure of a multi-layer board consists of multiple sheets stacked together to form a single product. This stacking structure dictates that the product must be laminated when forming the multi-layer board. This is especially true for hot-melt machines using CCD alignment. Due to process influences, the lifting and force control accuracy during the lamination process plays a crucial role in determining the product's lamination accuracy. Poor lifting and force control accuracy directly leads to product misalignment during the lamination process.

[0003] Existing lifting mechanisms generally consist of a power source, output control, and precision guide mechanisms. These mechanisms also require strict geometric tolerances between the reference table and the lifting mechanism. This places even higher demands on designers, processors, and assembly and commissioning personnel. Furthermore, due to inconsistent product thicknesses and multiple different reference surfaces, precise lifting cannot be achieved. This results in low compatibility and poor interchangeability among conventional lifting mechanisms. This can easily occur when stacking multiple products, especially when aligning high-level products. Small movement errors can accumulate, leading to larger overall errors.

[0004] Therefore, the prior art has defects. Utility Model Content

[0005] The purpose of the utility model is to overcome the shortcomings of the above-mentioned prior art that it is impossible to achieve precise lifting and the compatibility is not high, and to provide a high-precision lifting mechanism with an adaptive reference.

[0006] The utility model is realized as follows: a high-precision lifting mechanism with an adaptive reference is used to drive the pressing plate to press the product. The lifting mechanism includes:

[0007] A driving member connected to the pressing plate to drive the pressing plate to move up and down;

[0008] The universal mechanism is located between the pressing plate and the driving member, allowing the pressing plate to be adjusted in multiple directions during the process of lowering and pressing;

[0009] The detection device is installed between the driving part and the universal mechanism. It is used to detect and feedback the size signal of the force applied by the pressure plate on the product in real time. The driving part responds to the size signal of the force and drives the pressure plate to adjust its position to ensure that the pressure plate is parallel to the reference surface of the product.

[0010] Furthermore, one pressing plate is equipped with at least two driving members, and each driving member is equipped with a universal mechanism and a detection device.

[0011] Furthermore, at least two driving members are evenly distributed around the center of the pressure plate, so that the center point of the geometric figure formed by the sequential arrangement of the driving members is exactly located at the center of the driving member.

[0012] Furthermore, there are four driving members, which are arranged to form a rectangular shape.

[0013] Furthermore, the driving component is a lifting motor.

[0014] Furthermore, the detection device is a torque sensor.

[0015] Furthermore, the universal mechanism includes a hinge point and a rotary joint, one end of the hinge point is connected to the driving member, and the other end is connected to the rotary joint, and the rotary joint is fixed to the pressure plate after being connected to the hinge point.

[0016] The utility model provides a high-precision lifting mechanism with an adaptive reference. When the driving part drives the pressure plate to press downward toward the product and the pressure plate abuts against the product, under the action of the universal mechanism, the pressure plate can be adjusted according to the state of the product's reference surface, ensuring the vertical accuracy of the pressure plate during the descending process. The direction of the pressure plate can be adjusted according to the different heights of the product's reference surface to ensure the parallelism between the pressure plate and the product. It can adapt to different product reference surfaces and has high compatibility. In addition, in the process of the pressure plate descending to press the product, the driving part responds in real time to the force signal of the pressure plate applied to the product detected by the detection device, so as to realize the precise lifting and lowering of the pressure plate by the driving part, avoid the extrusion and offset phenomenon caused to the bottom product, and thus achieve a higher precision and more stable lifting action. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] The following drawings are only intended to illustrate and explain the present invention, and are not intended to limit the scope of the present invention.

[0019] Figure 1 The utility model is a structural diagram of a high-precision lifting mechanism with an adaptive benchmark.

[0020] Figure 2It is a schematic diagram of the position connection of the medium pressure plate, driving component, universal mechanism and detection device of the utility model.

[0021] Explanation of the accompanying figures: 1. Pressing plate; 2. Driving member; 3. Universal mechanism; 4. Detection device; 5. Mounting seat. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] See also Figure 1-Figure 2 , which is a high-precision lifting mechanism with adaptive reference disclosed in the utility model, mainly includes a pressing plate 1, a driving part 2, a universal mechanism 3 and a detection device 4. Through the coordinated work of the above components, the entire lifting mechanism can achieve high-precision lifting and pressing operations.

[0024] The entire lifting mechanism can be arranged on a mounting base 5 to achieve fixed connection with the lamination device, and the driving member 2, the detection device 4, the universal mechanism 3 and the pressing plate 1 are connected in sequence from top to bottom. Figure 2 As shown. The driving member 2 is connected to the pressing plate 1 to drive the lifting and lowering movement of the pressing plate 1. The driving member 2 can be specifically a lifting motor. During the descent and pressing process, the driving member 2 starts and drives the detection device 4, the universal mechanism 3 and the pressing plate 1 to move downward at the same time, until the pressing plate 1 is abutted and pressed against the surface of the product. In this process, the surface of the product is defined as a reference plane. When there is a height difference on both sides of the reference plane, that is, the initial state of the reference plane and the pressing plate 1 are not parallel to each other, under the action of the universal mechanism 3, the pressing plate 1 can be adjusted in multiple directions during the descent and pressing process to adjust its own angular position according to the state of the reference plane, to ensure the parallelism of the reference plane and the pressing plate 1, so that the pressing plate 1 can be completely fitted with the reference plane to ensure the pressing effect. The universal mechanism 3 preferably but not limited to includes a hinge point and a rotary joint, wherein the hinge point can be a bearing, a pivot or any joint that allows rotation, one end of the hinge point is connected to the driving member, and the other end is connected to the rotary joint, and the rotary joint is connected to the hinge point and then fixed to the pressure plate 1. The cooperation between the rotary joint and the hinge point can support the pressure plate 1 to swing at multiple angles, so that the pressure plate 1 can tilt or rotate according to the position of the reference plane while rising and falling, and adapt to the reference plane in different position states.

[0025] The detection device 4 can be specifically arranged on the output shaft of the driving member 2, that is, the lifting motor. The detection device 4 can be specifically a torque sensor, which is used to accurately measure the torque on the output shaft of the driving member 2, that is, the detection device 4 is installed on the force transmission path of the pressure plate 1. In the process of the driving member 2 driving the pressure plate 1 to descend, it can detect and feedback the size signal of the force applied by the pressure plate 1 on the product in real time. The driving member 2 responds to the size signal of the force and drives the pressure plate 1 to adjust its position to ensure that the pressure plate is parallel to the reference surface of the product.

[0026] A pressure plate 1 is equipped with at least two driving members 2, each of which is equipped with a universal mechanism 3 and a detection device 4. The at least two driving members 2 are respectively arranged at different positions of the pressure plate 1. The detection device 4 of each driving member 2 can monitor the force magnitude signal of the position in real time. When the pressure plate 1 is lowered from a horizontal state, if the reference surface of the product is not horizontal, that is, there is an angle between the original state of the pressure plate 1 and the reference surface of the product, a certain position of the pressure plate 1 will first contact the product. At this time, there will be a difference in the force magnitude signal detected by each detection device 4. The control unit at the back end will obtain the direction of the force based on the difference in force magnitude signal. In addition to responding to the force magnitude signal, the driving member 2 can also respond to the force direction signal, which can more quickly drive the other position of the pressure plate 1 to adjust its position to adapt to the reference surface of the product. Preferably, the at least two driving members 2 are evenly distributed around the center of the pressure plate 1, so that the center point of the geometric figure formed by their arrangement is exactly at the center of the driving member 2, ensuring the stability of the driving member 2 when driving the pressure plate 1 to adjust its position. In this embodiment, the position adjustment action of the pressure plate 1 is made as stable as possible under the premise of controlling production costs. There are four driving members 2, and the four driving members 2 are arranged to form a rectangular shape. The mounting seat 5 can be designed as a rectangular structure. The four driving members 2 are preferably located at the four corners of the mounting seat 5 to avoid swinging in other directions when the pressure plate 1 is pressed down, thereby ensuring the vertical accuracy of the pressure plate 1 during the lifting process, thereby achieving higher precision and more stable lifting action, and greatly reducing the extrusion offset phenomenon caused to the bottom product due to low verticality accuracy.

[0027] The driver 2, the detection device 4, and a control unit together form a closed-loop control system. The control unit is responsible for receiving feedback signals, processing data, making decisions, and outputting control instructions. The control unit can be a microcontroller, a programmable logic controller, a digital signal processor, etc. In this embodiment, the control unit is not specifically limited. The detection device 4 can accurately detect the torque of the driver 2 in real time. When the driver 2 drives the pressure plate 1 to abut against the product, the pressure plate 1 generates a reaction force on the output shaft of the driver 2. The detection device 4 can measure the magnitude of this reaction force on the driver 2 in real time. That is, the detection device 4 can detect the magnitude of the force applied by the pressure plate 1 on the product and transmit the detected feedback signal to the control unit. The control unit can immediately obtain the magnitude of the pressure when the pressure plate 1 is pressed down, and can also obtain the direction of the force based on the difference in the magnitude of the pressure. The control unit adjusts the operating parameters of the driver 2 based on the feedback signal and transmits the adjustment instruction back to the driver 2. The driver 2 receives the instruction from the control unit and drives the pressure plate 1 to move up and down according to the specified parameters, forming a continuous closed-loop feedback mechanism. Feedback linkage is achieved through the control unit, the driving member 2 and the detection device 4 to maintain the stability and accuracy of the force applied by the pressing plate 1 to the reference surface, so that the pressing plate 1 can adapt to the reference surfaces in different states, ensure the parallelism of the pressing plate 1 and the product reference surface during the pressing process, and ensure the vertical accuracy and pressing quality during the lifting process. In particular, when the pressing plate 1 descends to press and align high-level products, it can avoid slight movement errors in the reference surface of each product, thereby greatly reducing the overall operation error.

[0028] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements or improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A high-precision lifting mechanism with an adaptive reference, used to drive a pressing plate (1) to move and press a product, characterized in that: The lifting mechanism comprises: A driving member (2) connected to the pressing plate (1) to drive the pressing plate (1) to move upward and downward; A universal mechanism (3) is provided between the pressing plate (1) and the driving member (2), allowing the pressing plate (1) to be adjusted in multiple directions during the process of descending and pressing; The detection device (4) is arranged between the driving member (2) and the universal mechanism (3) and is used for real-time detection and feedback of the magnitude signal of the force applied by the pressure plate (1) on the product. The driving member (2) responds to the magnitude signal of the force and drives the pressure plate to adjust its position to ensure that the pressure plate is parallel to the reference surface of the product.

2. The high-precision lifting mechanism with adaptive reference according to claim 1, characterized in that: One pressing plate (1) is matched with at least two driving members (2), and each driving member (2) is matched with one universal mechanism (3) and one detection device (4).

3. The high-precision lifting mechanism with adaptive reference according to claim 2, characterized in that: At least two of the driving members (2) are evenly distributed around the center of the pressure plate, so that the center point of the geometric figure formed by the sequential arrangement is exactly located at the center of the driving member (2).

4. The high-precision lifting mechanism with adaptive reference according to claim 3, characterized in that: There are four driving members (2), and the four driving members (2) are arranged to form a rectangular shape.

5. The high-precision lifting mechanism with adaptive reference according to claim 1, characterized in that: The driving member (2) is a lifting motor.

6. The high-precision lifting mechanism with adaptive reference according to claim 1, characterized in that: The detection device (4) is a torque sensor.

7. The high-precision lifting mechanism with adaptive reference according to claim 1, characterized in that: The universal mechanism (3) comprises a hinge point and a rotary joint, one end of the hinge point is connected to the driving member (2), and the other end is connected to the rotary joint, and the rotary joint is fixed to the pressure plate (1) after being connected to the hinge point.

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