Ejector pin device

Abstract

The invention relates to an ejector pin device. The ejector pin device comprises an adsorption mechanism and an ejector pin mechanism. The adsorption mechanism is provided with an adsorption cavity and a first adsorption port and a second adsorption port which are communicated with the adsorption cavity, the first adsorption port is used for communicating with the air suction device, and the second adsorption port is used for adsorbing products; the ejector pin mechanism comprises a power assembly and a pin clamping assembly which are both located in the adsorption cavity, the power assembly is connected to the adsorption mechanism, the power assembly is in driving connection with the pin clamping assembly, and the power assembly is used for driving the pin clamping assembly to stretch out and draw back along the second adsorption opening. The ejector pin device can effectively fix the blue film, so that the ejector pin can accurately pierce the blue film, and the jacking height of the chip is ensured to be consistent.

Description

Technical Field

[0001] This application relates to the technical field of thimble devices, and particularly to a thimble device. Background Art

[0002] During the process of transferring a huge number of chips for printed circuit board processing, multiple chips are placed on a blue film ring. The thimble of the thimble device moves upward to pierce the blue film and push the chips to a predetermined position. However, the blue film is flexible and tough, and it cannot be pierced without fixing the blue film. Currently, the existing thimble devices are difficult to effectively fix the blue film, resulting in the thimble being unable to accurately pierce the blue film or having inconsistent lifting heights.

[0003] The information disclosed in this background art section is only intended to enhance the overall understanding of the present invention and should not be regarded as an admission or any form of implication that this information constitutes prior art already known to those of ordinary skill in the art. Summary of the Invention

[0004] Based on this, in view of the problem that the existing thimble devices are difficult to effectively fix the blue film, resulting in the thimble being unable to accurately pierce the blue film or having inconsistent lifting heights, it is necessary to provide a thimble device.

[0005] In a first aspect, a thimble device includes:

[0006] An adsorption mechanism, the adsorption mechanism is provided with an adsorption cavity and a first adsorption port and a second adsorption port communicating with the adsorption cavity. The first adsorption port is used to communicate with an air suction device, and the second adsorption port is used to adsorb a product; and

[0007] A thimble mechanism, the thimble mechanism includes a power component and a needle clamping component both located in the adsorption cavity. The power component is connected to the adsorption mechanism, the power component is drivingly connected to the needle clamping component, and the power component is used to drive the needle clamping component to expand and contract along the second adsorption port.

[0008] In one embodiment, a guiding structure protrudes from the cavity wall of the adsorption cavity towards the direction of the thimble mechanism. A guiding groove is formed between the guiding structure and the cavity wall. The guiding groove communicates with the first adsorption port and the adsorption cavity. The power component is connected to the guiding structure, and the power component is spaced apart from the guiding groove.

[0009] In one embodiment, the cavity wall of the adsorption cavity includes a bottom wall and a side wall connected to the outer periphery of the bottom wall, the first adsorption port is arranged on the bottom wall, and the bottom wall and the side wall are jointly configured to form the adsorption cavity, the guide structure includes a first guide body and a second guide body, the first guide body and the second guide body are both convexly arranged on the bottom wall, the first guide body and the second guide body are spaced apart at the outer periphery of the first adsorption port, the outer periphery of the first guide body is spaced apart from the side wall, a part of the outer periphery of the second guide body is connected to the side wall, and the other part is spaced apart from the side wall; the first guide body, the second guide body and the side wall are jointly configured to form the guide groove, the power assembly is simultaneously connected to the first guide body and the second guide body, a part of the guide groove is located between the bottom wall and the top of the power assembly, and the other part of the guide groove is located at the outer periphery of the power assembly.

[0010] In one embodiment, the guide groove includes a first guide groove and a second guide groove that are connected to each other, the outer periphery of the first guide body includes a connected convex angle edge and a first arc edge, the outer periphery of the second guide body includes a connected concave angle edge and a second arc edge, the convex angle of the convex angle edge faces the first suction port, and the concave angle of the concave angle edge faces the first suction port, and a first guide groove connected to the first suction port is formed between the convex angle edge and the concave angle edge, the first arc edge faces the side wall and is spaced apart from the side wall, a part of the second arc edge is connected to the side wall, and the other part faces the side wall and is spaced apart from the side wall, the first arc edge and the second arc edge form a second guide groove connected to the first guide groove with the side wall, the first guide groove is located between the bottom wall and the top of the power assembly, and the second guide groove is located on the outer periphery of the power assembly.

[0011] In one embodiment, the adsorption mechanism includes a syringe body and a needle cap body, the syringe body is provided with the first adsorption port and the first adsorption cavity, the needle cap body is provided with the second adsorption port and the second adsorption cavity, the needle cap body is detachably connected to the syringe body so that the first adsorption cavity is connected to the second adsorption cavity to form the adsorption cavity, and the power assembly is connected to the syringe body.

[0012] In one embodiment, the adsorption mechanism also includes a fixed seat, a mounting groove is recessed on the surface of the syringe body facing away from the needle cap body, the first adsorption port is connected to the mounting groove, the fixed seat is fixed in the mounting groove, and an air flow channel is penetrated through the fixed seat along its own axis, and the air flow channel is connected to the first adsorption port and the suction device.

[0013] In one embodiment, the power assembly includes a driving member and a driving shaft. The driving member is connected to the adsorption mechanism. The driving member is drivingly connected to one end of the driving shaft, and the other end of the driving shaft is connected to the needle clamping assembly. The driving member drives the driving shaft to drive the needle clamping assembly to expand and contract along the second adsorption port.

[0014] In one embodiment, the ejector pin device further includes an induction assembly. The induction assembly includes a grating ruler, an induction circuit board, and a conductive member. The grating ruler is disposed on the needle clamping assembly. The induction circuit board is used to sense the position of the grating ruler. The conductive member is electrically connected to the induction circuit board, and the conductive member is used to connect to an external wiring.

[0015] In one embodiment, the needle clamping assembly includes a needle clamping seat, a needle clamping cap, and an ejector pin. One end of the needle clamping seat is connected to the power assembly, the other end of the needle clamping seat is connected to the ejector pin, and the needle clamping cap is sleeved on the outer periphery of one end of the needle clamping seat close to the ejector pin.

[0016] In one embodiment, the second adsorption port includes a first opening and a second opening which are arranged at intervals. The second opening is arranged at intervals on the outer periphery of the first opening. The first opening is used for the needle clamping assembly to extend or retract, and both the first opening and the second opening are used for adsorbing the product.

[0017] The adsorption mechanism of the above ejector pin device is provided with an adsorption cavity, a first adsorption port and a second adsorption port communicated with the adsorption cavity. The first adsorption port is communicated with an air suction device, and the second adsorption port is used for adsorbing the product (in the embodiment of the present application, the product may refer to a blue film). When the air suction device works, a negative pressure is generated in the adsorption cavity through the first adsorption port, so that the blue film is adsorbed and fixed through the second adsorption port. Compared with the method of effectively fixing the blue film not mentioned in the original scheme, this adsorption and fixing method can fix the blue film more reliably, and avoid the situation that the blue film deforms and cannot be punctured when being punctured by the ejector pin due to its flexibility and toughness and not being fixed, creating conditions for the ejector pin to successfully puncture the blue film. The ejector pin mechanism includes a power assembly and a needle clamping assembly located in the adsorption cavity, and the power assembly is connected to the adsorption mechanism and drivingly connected to the needle clamping assembly. The power assembly can drive the needle clamping assembly to expand and contract along the second adsorption port. On the one hand, since the power assembly can precisely control the expansion and contraction movement of the needle clamping assembly, the movement of the needle clamping assembly when puncturing the blue film is more accurate, and it can accurately puncture the blue film at a predetermined position on the basis of the blue film being adsorbed and fixed. On the other hand, the power assembly can precisely control the height of the expansion and contraction of the needle clamping assembly. No matter how the tension of the blue film and other situations change, as long as the adsorption mechanism fixes the blue film well, the power assembly can drive the needle clamping assembly to reach the same height, thus solving the problem of inconsistent lifting height of the ejector pin caused by the middle sag of the blue film and other situations in the original scheme, and ensuring that each ejector pin can lift the chip to the predetermined position. Brief Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the disclosed drawings.

[0019] Figure 1 It is a three-dimensional schematic diagram of a thimble device provided by an embodiment of the present application.

[0020] Figure 2 It is a cross-sectional view of a thimble device provided by an embodiment of the present application.

[0021] Figure 3 It is a cross-sectional view of an adsorption mechanism provided by an embodiment of the present application.

[0022] Figure 4 It is a three-dimensional schematic diagram of a partial structure of an adsorption mechanism provided by an embodiment of the present application.

[0023] Figure 5 It is a three-dimensional schematic diagram of a thimble mechanism provided by an embodiment of the present application.

[0024] Description of the reference numerals: 100, thimble device; 1, adsorption mechanism; 11, adsorption cavity; 111, bottom wall; 112, side wall; 12, first adsorption port; 13, second adsorption port; 131, first opening; 132, second opening; 14, flow guiding structure; 141, first flow guiding body; 1411, convex corner edge; 1412, first arc edge; 142, second flow guiding body; 1421, concave corner edge; 1422, second arc edge; 15, flow guiding groove; 151, first flow guiding groove; 152, second flow guiding groove; 16, syringe body; 161, first adsorption cavity; 17, needle cap body; 171, second adsorption cavity; 18, fixed seat; 181, air flow channel; 2, thimble mechanism; 21, power assembly; 211, driving member; 2111, voice coil motor stator; 2112, voice coil motor mover; 212, driving shaft; 22, needle clamping assembly; 221, needle clamping seat; 222, needle clamping cap; 223, thimble; 31, grating scale; 32, induction circuit board; 33, conductive member. Detailed Embodiments

[0025] To make the above objects, features, and advantages of the present application more apparent and understandable, the following provides a detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0026] Please refer to Figure 1 , an ejector pin device 100 is provided in an embodiment of the present application. Please refer to Figure 2 , the ejector pin device 100 includes an adsorption mechanism 1 and an ejector pin mechanism 2. The adsorption mechanism 1 is provided with an adsorption cavity 11 and a first adsorption port 12 and a second adsorption port 13 communicating with the adsorption cavity 11. The first adsorption port 12 is used to communicate with an air suction device, and the second adsorption port 13 is used to adsorb a product. The ejector pin mechanism 2 includes a power assembly 21 and a needle clamping assembly 22 both located in the adsorption cavity 11. The power assembly 21 is connected to the adsorption mechanism 1, and the power assembly 21 is drivingly connected to the needle clamping assembly 22. The power assembly 21 is used to drive the needle clamping assembly 22 to expand and contract along the second adsorption port 13. The adsorption mechanism 1 is provided with an adsorption cavity 11 and a first adsorption port 12 and a second adsorption port 13 communicating with the adsorption cavity 11. The first adsorption port 12 communicates with an air suction device, and the second adsorption port 13 is used to adsorb a product (in the embodiment of the present application, the product may refer to a blue film). When the air suction device works, a negative pressure is generated in the adsorption cavity 11 through the first adsorption port 12, so that the blue film is adsorbed and fixed via the second adsorption port 13. Compared with the method of effectively fixing the blue film not mentioned in the original solution, this adsorption and fixing method can fix the blue film more reliably, and avoid the situation that the blue film is deformed and cannot be punctured when being punctured by the ejector pin 223 due to its flexibility and toughness and not being fixed. The ejector pin mechanism 2 includes a power assembly 21 and a needle clamping assembly 22 located in the adsorption cavity 11, and the power assembly 21 is connected to the adsorption mechanism 1 and drivingly connected to the needle clamping assembly 22. The power assembly 21 can drive the needle clamping assembly 22 to expand and contract along the second adsorption port 13. On the one hand, since the power assembly 21 can precisely control the expansion and contraction action of the needle clamping assembly 22, the action of the needle clamping assembly 22 when puncturing the blue film is more accurate, and it can accurately puncture the blue film at a predetermined position on the basis of the blue film being adsorbed and fixed. On the other hand, the power assembly 21 can precisely control the height of the expansion and contraction of the needle clamping assembly 22. No matter how the tension of the blue film changes, as long as the adsorption mechanism 1 fixes the blue film well, the power assembly 21 can drive the needle clamping assembly 22 to reach the same height, thus solving the problem of inconsistent lifting heights of the ejector pin 223 caused by the middle sag of the blue film in the original solution, and ensuring that the ejector pin 223 can lift the chip to the predetermined position every time.

[0027] Please refer to Figure 3, in some embodiments, a guiding structure 14 protrudes from the cavity wall of the adsorption cavity 11 towards the thimble mechanism 2. A guiding groove 15 is formed between the guiding structure 14 and the cavity wall. The guiding groove 15 communicates with the first adsorption port 12 and the adsorption cavity 11. The power assembly 21 is connected to the guiding structure 14, and the power assembly 21 is spaced apart from the guiding groove 15. The guiding groove 15 can guide the suction air flow entering from the first adsorption port 12, so that the air flow is more evenly distributed in the adsorption cavity 11, and then a more stable and uniform negative pressure is formed at the second adsorption port 13. The adsorption of products such as blue films and chips is more stable, reducing the situation of insecure adsorption or insufficient local adsorption force caused by uneven air flow, and improving the reliability of blue film fixation during the transfer of a large number of chips. The power assembly 21 is spaced apart from the guiding groove 15, so that the air flow flows in the guiding groove 15 and does not directly impact the power assembly 21 and the needle clamping assembly 22 of the thimble mechanism 2, etc., ensuring the stability and accuracy of the thimble 223 during the telescopic process, and avoiding deviation of the thimble 223 due to air flow disturbance, which affects the accuracy of piercing the blue film and lifting the chip.

[0028] Please refer to Figure 3 and Figure 4 , in some embodiments, the cavity wall of the adsorption cavity 11 includes a bottom wall 111 and a side wall 112 connected to the outer periphery of the bottom wall 111. The first adsorption port 12 is provided on the bottom wall 111, and the bottom wall 111 and the side wall 112 together form the adsorption cavity 11. Please refer to Figure 4, the flow guiding structure 14 includes a first flow guide 141 and a second flow guide 142. Both the first flow guide 141 and the second flow guide 142 protrude from the bottom wall 111. The first flow guide 141 and the second flow guide 142 are spaced apart from each other and disposed around the outer periphery of the first adsorption port 12. The outer periphery of the first flow guide 141 is spaced apart from the side wall 112. A part of the outer periphery of the second flow guide 142 is connected to the side wall 112, and the other part is spaced apart from the side wall 112. The first flow guide 141, the second flow guide 142 and the side wall 112 together define a flow guiding groove 15. The power assembly 21 is connected to both the first flow guide 141 and the second flow guide 142 at the same time. A part of the flow guiding groove 15 is located between the bottom wall 111 and the top of the power assembly 21, and the other part of the flow guiding groove 15 is located around the outer periphery of the power assembly 21. The first flow guide 141 and the second flow guide 142 are spaced apart and disposed around the outer periphery of the first adsorption port 12, and can guide the airflow entering from the first adsorption port 12 in multiple directions. So that a part of the airflow can flow between the first flow guide 141 and the second flow guide 142, and another part of the airflow can flow along the gaps between the first flow guide 141 and the side wall 112 and between the second flow guide 142 and the side wall 112, making the airflow more evenly dispersed in the adsorption cavity, which helps to form a more stable and uniform negative pressure field at the second adsorption port 13 and enhance the adsorption effect on the blue film and the chip. The flow guiding groove 15 located between the bottom wall 111 and the top of the power assembly 21 can play a buffering role, reducing the direct impact of the airflow on the top of the power assembly 21 and reducing the influence of the airflow pressure change on the power assembly 21, making the power assembly 21 work more stably. At the same time, the airflow flowing in the flow guiding groove 15 can play a heat insulation role to a certain extent, maintaining the relative stability of the working environment temperature of the power assembly 21, which is beneficial to ensuring the performance and service life of the power assembly 21. The first flow guide 141 and the second flow guide 142 are jointly connected to the power assembly 21, providing a more stable support structure for the power assembly 21, making the power assembly 21 more stable during operation, not prone to shaking or deviation, which is beneficial to improving the accuracy and precision of the movement of the ejector pin 223.

[0029] Please refer to Figure 4, in some embodiments, the diversion groove 15 includes a first diversion groove 151 and a second diversion groove 152 that are connected and communicate with each other. The outer periphery of the first guiding body 141 includes a convex corner edge 1411 and a first arc edge 1412 that are connected to each other. The outer periphery of the second guiding body 142 includes a concave corner edge 1421 and a second arc edge 1422 that are connected to each other. The convex corner of the convex corner edge 1411 faces the first adsorption port 12, and the concave corner of the concave corner edge 1421 faces the first adsorption port 12. A first diversion groove 151 that communicates with the first adsorption port 12 is formed between the convex corner edge 1411 and the concave corner edge 1421. The first arc edge 1412 faces the side wall 112 and is spaced from the side wall 112. A part of the second arc edge 1422 is connected to the side wall 112, and the other part faces the side wall 112 and is spaced from the side wall 112. The first arc edge 1412 and the second arc edge 1422 and the side wall 112 form a second diversion groove 152 that communicates with the first diversion groove 151. The first diversion groove 151 is located between the bottom wall 111 and the top of the power assembly 21, and the second diversion groove 152 is located on the outer periphery of the power assembly 21. The first diversion groove 151 formed by the opposite arrangement of the convex corner edge 1411 and the concave corner edge 1421 can accurately divert and guide the air flow coming out of the first adsorption port 12, so that the air flow flows around the top of the power assembly 21 along a specific path, ensuring that the air flow is more evenly distributed in this area, which helps to improve the stability and reliability of the adsorption of the blue film and the chip. The second diversion groove 152 formed by the first arc edge 1412, the second arc edge 1422 and the side wall 112 provides a more curved flow space for the air flow, so that the air flow can generate a certain swirling and mixing effect when flowing therein. This can further evenly distribute the velocity and pressure of the air flow, avoid local air flow disorder or uneven pressure, so as to form a more stable and uniform adsorption force at the second adsorption port 13, which is beneficial to more accurately adsorb and fix the blue film and create good conditions for the ejector pin 223 to accurately pierce the blue film. By reasonably designing the shapes of the convex corner edge 1411, the concave corner edge 1421, the first arc edge 1412, and the second arc edge 1422, the flow velocity of the air flow in the first diversion groove 151 and the second diversion groove 152 can be adjusted. For example, in the case where a greater adsorption force is required, the angles of the convex corner edge 1411 and the concave corner edge 1421 of the first diversion groove 151 can be made sharper to accelerate the air flow in this area, thereby generating a greater negative pressure at the second adsorption port 13 and enhancing the adsorption effect; for the second diversion groove 152, by adjusting the curvature of the arc edge, etc., the flow velocity of the air flow on the outer periphery of the power assembly 21 can be made moderate, which not only ensures the protection of the power assembly 21, but also can cooperate with the air flow of the first diversion groove 151 to achieve the optimization of the overall air flow. The second diversion groove 152 is located on the outer periphery of the power assembly 21 and can form an air flow buffer zone surrounding the power assembly 21.On the one hand, it can reduce the chances of possible external impurities, dust, etc. directly contacting the power assembly 21, play a role in dust prevention and protection, and reduce the risk of power assembly 21 malfunctioning due to the entry of impurities; on the other hand, the uniform and stable airflow flows around the periphery of the power assembly 21, which can take away part of the heat generated by the power assembly 21 when it is working, play a certain heat dissipation role, and help maintain the normal working temperature of the power assembly 21, improve its working efficiency and service life. This complex and sophisticated guide groove 15 structural design makes the space between the adsorption cavity 11 and the ejector mechanism 2 more reasonably utilized. The setting of the first guide groove 151 and the second guide groove 152 can realize efficient guidance and distribution of airflow within a limited space, and at the same time provide suitable installation and working space for components such as the power assembly 21, making the structure of the entire ejector device 100 more compact and stable, and improving the overall performance and reliability of the device.

[0030] The specific structure of the adsorption mechanism 1 will be described below:

[0031] See also Figure 3 In an optional embodiment, the adsorption mechanism 1 as a whole can be a cylindrical body, or can be a square body.

[0032] See also Figure 3 In some embodiments, the adsorption mechanism 1 includes a syringe body 16 and a needle cap body 17, the syringe body 16 is provided with a first adsorption port 12 and a first adsorption cavity 161, the needle cap body 17 is provided with a second adsorption port 13 and a second adsorption cavity 171, the needle cap body 17 is detachably connected to the syringe body 16 so that the first adsorption cavity 161 is connected to the second adsorption cavity 171 to form an adsorption cavity 11, and the power assembly 21 is connected to the syringe body 16. The syringe body 16 is provided with a first adsorption port 12 and a first adsorption cavity 161, the needle cap body 17 is provided with a second adsorption port 13 and a second adsorption cavity 171, and the two cooperate to form a complete adsorption cavity 11. In this way, the suction device can be connected through the first adsorption port 12, the airflow is preliminarily guided by the first adsorption cavity 161, and then the product is more accurately adsorbed through the second adsorption port 13, so that the adsorption process is more targeted and accurate, and can better meet the adsorption requirements of products of different sizes and shapes. The needle cap body 17 is detachably connected to the syringe body 16 , so that the needle cap body 17 can be easily removed from the syringe body 16 during equipment maintenance.

[0033] See also Figure 3, in some embodiments, the adsorption mechanism 1 further includes a fixed seat 18. A mounting groove is recessed on the surface of the syringe body 16 facing away from the needle cap body 17. The first adsorption port 12 communicates with the mounting groove. The fixed seat 18 is fixedly arranged in the mounting groove. An air flow channel 181 is provided through the fixed seat 18 along its own axis. The air flow channel 181 communicates with the first adsorption port 12 and the air suction device. The air flow channel 181 can provide an accurate guiding path for the air flow from the air suction device, so that the air flow passes through the air flow channel 181 and the first adsorption port 12 from the air suction device and finally reaches the adsorption cavity 11 and the second adsorption port 13, ensuring that the air flow flows stably according to the designed path, improving the accuracy and stability of the air flow transmission, and helping to more stably adsorb the product and the blue film, creating good conditions for the ejector pin 223 to accurately pierce the blue film. The air flow channel 181 of the fixed seat 18 can preliminarily distribute and adjust the air flow, so that the air flow can be more evenly distributed before entering the adsorption cavity 11, avoiding the situation of air flow disorder or local pressure unevenness, and then ensuring that the adsorption force is more uniform in the whole adsorption area, which is beneficial to improving the stability and reliability of the adsorption of the blue film and the chip, and preventing the blue film from shifting or wrinkling during the adsorption process due to uneven adsorption force. The fixed seat 18 is fixedly arranged in the mounting groove of the syringe body 16, providing a stable connection interface between the syringe body 16 and the air suction device, facilitating the installation and positioning of the air suction device, ensuring the accurate connection between the air suction device and the adsorption mechanism 1, reducing the errors and uncertainties during the installation process, and improving the assembly efficiency and accuracy of the whole ejector pin device 100. The fixed seat 18 plays a role of strengthening and supporting in the mounting groove, enhancing the structural strength of the connection part between the syringe body 16 and the air suction device, making the whole adsorption mechanism 1 more stable when bearing the air flow pressure and other external forces, reducing problems such as air leakage and vibration caused by insecure connection or unstable structure, and improving the working reliability and stability of the ejector pin device 100.

[0034] Please refer to Figure 5, in some embodiments, the power assembly 21 includes a driving member 211 and a driving shaft 212. The driving member 211 is connected to the adsorption mechanism 1. The driving member 211 is drivingly connected to one end of the driving shaft 212, and the other end of the driving shaft 212 is connected to the needle clamping assembly 22. The driving member 211 drives the driving shaft 212 to drive the needle clamping assembly 22 to expand and contract along the second adsorption port 13. The driving shaft 212 can accurately transmit the power of the driving member 211 to the needle clamping assembly 22, ensuring the stability and reliability of power transmission. Through the rotation or linear motion of the driving shaft 212, the expansion and contraction action of the needle clamping assembly 22 can be precisely controlled, enabling it to operate according to the set requirements. For example, when piercing the blue film, the extension length and force of the ejector pin 223 can be accurately controlled to ensure the consistency and accuracy of the piercing effect. As an intermediate component connecting the driving member 211 and the needle clamping assembly 22, the driving shaft 212 can play a role of support and connection between the two, enhancing the structural stability between the power assembly 21 and the needle clamping assembly 22. It can withstand a certain amount of external force and torque, reducing the possibility of component damage or loosening caused by stress concentration during power transmission, and improving the reliability and service life of the entire ejector pin device 100. During the operation of the needle clamping assembly 22, it may be affected by various forces, such as the resistance and adsorption force when piercing the blue film. The driving shaft 212 can disperse these acting forces to the entire power transmission system, avoiding the excessive burden on a single component caused by the concentrated action of the forces, thereby protecting the driving member 211 and the needle clamping assembly 22, reducing the risk of component damage, and improving the stability and safety of the system.

[0035] In an alternative embodiment, the driving member 211 can be a rod-shaped motor, a linear motor, or a voice coil motor.

[0036] Please refer to Figure 5, when the driving member 211 is a voice coil motor, the voice coil motor includes a voice coil motor stator 2111 and a voice coil motor mover 2112. The voice coil motor stator 2111 is fixedly connected to the adsorption mechanism 1, the voice coil motor stator 2111 is drivingly connected to the voice coil motor mover 2112, and the voice coil motor mover 2112 is connected to the drive shaft 212. The voice coil motor stator 2111 is a magnet, and the voice coil motor mover 2112 is a coil. The voice coil motor works based on the principle of electromagnetic force. There are no problems such as gaps and friction of mechanical transmission components between the voice coil motor stator 2111 and the voice coil motor mover 2112. When an electric current is passed through the voice coil motor mover 2112 (coil), electromagnetic force can be generated in an extremely short time, which can push the voice coil motor mover 2112 to drive the drive shaft 212 to move. The response time can reach milliseconds or even microseconds, and the start, stop, and movement position of the drive shaft 212 can be accurately controlled, making the action of the needle clamping assembly 22 more precise. For example, in operations such as puncturing a blue film that require high-precision positioning, the top needle 223 can be accurately controlled to reach the specified position, improving the accuracy and consistency of the operation. The electromagnetic force generated by the voice coil motor is proportional to the current passed through the coil. By precisely controlling the magnitude and direction of the current, the movement speed and acceleration of the drive shaft 212 can be accurately controlled, making the movement of the drive shaft 212 very smooth and avoiding the vibration and jitter phenomena that may occur in traditional motor drives. The structure of the voice coil motor is relatively simple, mainly composed of a voice coil motor stator 2111 (magnet) and a voice coil motor mover 2112 (coil). Compared with traditional motors, such as stepper motors or servo motors, it reduces complex transmission components such as gears, belts, and couplings, reduces the risk of system failure caused by wear, loosening, or failure of these components, improves the reliability and stability of the entire power transmission system, and reduces maintenance costs and downtime. The voice coil motor stator 2111 and the voice coil motor mover 2112 are driven by electromagnetic force, which is a non-contact driving method. There is no mechanical contact and friction, so no wear debris is generated, and no heat is generated due to friction. This not only extends the service life of the voice coil motor itself but also reduces the pollution and influence on the surrounding environment and other components, improving the reliability and safety of the entire system. The voice coil motor can provide high acceleration and speed. Since its mover mass is relatively small, it can be quickly accelerated and decelerated under the action of electromagnetic force, enabling the drive shaft 212 to drive the needle clamping assembly 22 to complete rapid telescopic movements in a short time, improving work efficiency. For example, in scenarios that require frequent puncturing operations, the production efficiency can be greatly improved.

[0037] Please refer to Figure 2 and Figure 3, in some embodiments, the ejector pin device 100 further includes an induction component. The induction component includes a grating scale 31, an induction circuit board 32, and a conductive member 33. The grating scale 31 is disposed on the pin clamping component 22. The induction circuit board 32 is used to sense the position of the grating scale 31. The conductive member 33 is electrically connected to the induction circuit board 32 and is used to connect to an external wiring. The grating scale 31 can convert the mechanical displacement of the pin clamping component 22 into an accurate electrical signal, providing high-precision position feedback for the system. For example, in a scenario where the ejector pin device 100 needs to precisely control the extension length of the ejector pin 223 to pierce blue films of different thicknesses, the grating scale 31 can accurately measure the moving distance of the pin clamping component 22, accurate to the micron level or even higher precision levels, ensuring the accuracy and consistency of each piercing operation. In cooperation with the induction circuit board 32, the position state of the pin clamping component 22 can be monitored in real time. Whether the pin clamping component 22 is in the stage of fast movement or slow adjustment close to the target position, its position information can be obtained in real time, so that the system can adjust the control strategy in a timely manner according to the actual situation, ensuring the motion accuracy and stability of the ejector pin device 100.

[0038] Please refer to Figure 5 , in some embodiments, the pin clamping component 22 includes a pin clamping seat 221, a pin clamping cap 222, and an ejector pin 223. One end of the pin clamping seat 221 is connected to the power component 21, the other end of the pin clamping seat 221 is connected to the ejector pin 223, and the pin clamping cap 222 is sleeved on the outer periphery of one end of the pin clamping seat 221 close to the ejector pin 223. As an intermediate component connecting the power component 21 and the ejector pin 223, the pin clamping seat 221 can provide stable support for the ejector pin 223, ensuring that the ejector pin 223 maintains an accurate position and posture during operation. Its connection with the power component 21 can accurately transmit power, enabling the ejector pin 223 to perform telescopic motion according to preset requirements, realizing precise ejector pin 223 operation. The pin clamping cap 222 is sleeved on the outer periphery of one end of the pin clamping seat 221 close to the ejector pin 223, which can play an auxiliary positioning and clamping role for the ejector pin 223. When it is necessary to clamp an object or perform a fine operation, the pin clamping cap 222 can cooperate with the ejector pin 223 to provide a more precise clamping function, ensuring that the clamped object will not slip or shift, improving the accuracy and reliability of the operation. The pin clamping cap 222 can play a certain protective role for the ejector pin 223, preventing the ejector pin 223 from being collided, damaged, or contaminated during non-use or transportation. Especially for some ejector pins 223 with relatively sharp or fragile tips, the pin clamping cap 222 can prevent the tip from contacting other objects and causing the tip to deform or be damaged, extending the service life of the ejector pin 223.

[0039] In an alternative embodiment, the pin clamping seat 221 is connected to the drive shaft 212.

[0040] Please refer to Figure 2, In some embodiments, the second adsorption port 13 includes a first opening 131 and a second opening 132 that are spaced apart. The second opening 132 is disposed at an interval on the outer periphery of the first opening 131. The first opening 131 is used for the clamping needle assembly 22 to extend or retract, and both the first opening 131 and the second opening 132 are used for adsorbing the product. Adding the second opening 132 can adsorb the blue film from different positions, so that the blue film is subjected to adsorption forces in multiple directions, which is more stable than single-opening adsorption. When adsorbing a thin and easily deformable blue film, the adsorption force formed by the first opening 131 and the second opening 132 is more evenly distributed, which can effectively prevent the product from shifting, shaking or falling off during the adsorption process, and ensure the position accuracy of the blue film. The first opening 131 is specifically used for the clamping needle assembly 22 to extend or retract, providing a smooth channel for the movement of the clamping needle assembly 22 and avoiding interference between the adsorption port and the clamping needle assembly 22. When the clamping needle assembly 22 performs operations such as ejecting the needle 223 and clamping, it can complete the actions freely without being restricted by the structure of the adsorption port, ensuring the flexibility and accuracy of the work of the clamping needle assembly 22. While the clamping needle assembly 22 operates on the product, the first opening 131 and the second opening 132 can adsorb simultaneously, so that the adsorption and the clamping needle operation cooperate with each other. For example, when performing operations such as puncturing or marking the blue film, the adsorption force can firmly fix the blue film, prevent the blue film from being displaced under the action of the clamping needle assembly 22, ensure the accuracy and quality of the operation, and improve the work efficiency and the product qualification rate.

[0041] In an alternative embodiment, the first opening 131 is disposed at the center of the adsorption mechanism 1, and the second opening 132 is arranged radially around the outer periphery of the first opening 131. The embodiments of the present application do not limit the setting position of the second opening 132.

[0042] Please refer to Figure 2 and Figure 3 , The following will further explain the specific working principle of the ejector pin device 100 of the present application: Connect the air flow channel 181 of the fixed seat 18 to the suction device. The suction device sucks air to keep the inside of the adsorption mechanism 1 under negative pressure. The needle cap body 17 of the adsorption mechanism 1 adsorbs on the blue film. The power assembly 21 drives the clamping needle assembly 22 to extend out of the first opening 131, thereby piercing the blue film and ejecting the chip.

[0043] In the description of the present application, it should be understood that if there are terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings. These are only for the convenience of describing the present application 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 thus should not be construed as a limitation to the present application.

[0044] In addition, if there are terms such as "first" and "second", these terms are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, if there is a term "plurality", the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0045] In the present application, unless otherwise clearly specified and limited, if there are terms such as "mounted", "connected", "joined", "fixed", etc., these terms should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0046] In the present application, unless otherwise clearly specified and limited, if there is a description such as a first feature being "on" or "under" a second feature, the meaning may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0047] It should be noted that if an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0048] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0049] The above-described embodiments only represent several implementation manners of the present application. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A thimble device, characterized in that, Comprising: An adsorption mechanism, the adsorption mechanism is provided with an adsorption cavity and a first adsorption port and a second adsorption port communicated with the adsorption cavity, the first adsorption port is used for communicating with an air suction device, and the second adsorption port is used for adsorbing a product; And A thimble mechanism, the thimble mechanism includes a power component and a needle clamping component both located in the adsorption cavity, the power component is connected to the adsorption mechanism, the power component is drivingly connected to the needle clamping component, and the power component is used for driving the needle clamping component to stretch along the second adsorption port.

2. The thimble device according to claim 1, wherein A flow guiding structure is convexly provided on the cavity wall of the adsorption cavity towards the direction of the thimble mechanism, a flow guiding groove is formed between the flow guiding structure and the cavity wall, the flow guiding groove is communicated with the first adsorption port and the adsorption cavity, the power component is connected to the flow guiding structure, and the power component is spaced from the flow guiding groove.

3. The thimble device according to claim 2, characterized in that, The cavity wall of the adsorption cavity includes a bottom wall and a side wall connected to the outer periphery of the bottom wall, the first adsorption port is provided on the bottom wall, the bottom wall and the side wall jointly form the adsorption cavity, the flow guiding structure includes a first flow guiding body and a second flow guiding body, both the first flow guiding body and the second flow guiding body are convexly provided on the bottom wall, the first flow guiding body and the second flow guiding body are spaced from each other on the outer periphery of the first adsorption port, the outer periphery of the first flow guiding body is spaced from the side wall, a part of the outer periphery of the second flow guiding body is connected to the side wall, and the other part is spaced from the side wall; the first flow guiding body, the second flow guiding body and the side wall jointly form the flow guiding groove, the power component is simultaneously connected to the first flow guiding body and the second flow guiding body, a part of the flow guiding groove is located between the bottom wall and the top of the power component, and the other part of the flow guiding groove is located on the outer periphery of the power component.

4. The thimble device according to claim 3, wherein The flow guiding groove includes a first flow guiding groove and a second flow guiding groove which are communicated with each other, the outer periphery of the first flow guiding body includes a convex corner edge and a first arc edge which are connected, the outer periphery of the second flow guiding body includes a concave corner edge and a second arc edge which are connected, the convex angle of the convex corner edge faces the first adsorption port, the concave angle of the concave corner edge faces the first adsorption port, a first flow guiding groove communicated with the first adsorption port is formed between the convex corner edge and the concave corner edge, the first arc edge faces the side wall and is spaced from the side wall, a part of the second arc edge is connected to the side wall, and the other part faces the side wall and is spaced from the side wall, the first arc edge and the second arc edge form a second flow guiding groove communicated with the first flow guiding groove with the side wall, the first flow guiding groove is located between the bottom wall and the top of the power component, and the second flow guiding groove is located on the outer periphery of the power component.

5. The thimble device according to claim 1, characterized in that, The adsorption mechanism includes a syringe body and a needle cap body, the syringe body is provided with the first adsorption port and a first adsorption cavity, the needle cap body is provided with the second adsorption port and a second adsorption cavity, the needle cap body is detachably connected to the syringe body so that the first adsorption cavity is communicated with the second adsorption cavity to form the adsorption cavity, and the power component is connected to the syringe body.

6. The thimble device according to claim 5, wherein The adsorption mechanism also includes a fixing seat, a mounting groove is recessed on the surface of the syringe body on one side facing away from the needle cap body, the first adsorption port is communicated with the mounting groove, the fixing seat is fixed in the mounting groove, an air flow channel is penetrated through the fixing seat along its own axis, and the air flow channel is communicated with the first adsorption port and the suction device.

7. The thimble device according to claim 1, characterized in that, The power assembly includes a driving member and a driving shaft. The driving member is connected to the adsorption mechanism. The driving member is drivingly connected to one end of the driving shaft. The other end of the driving shaft is connected to the clamping needle assembly. The driving member drives the driving shaft to drive the clamping needle assembly to extend and retract along the second adsorption port.

8. The thimble device according to claim 1, characterized in that, The ejector device also includes a sensing component, which includes a grating ruler, a sensing circuit board and a conductive member. The grating ruler is arranged on the clamping needle component, the sensing circuit board is used to sense the position of the grating ruler, the conductive member is electrically connected to the sensing circuit board, and the conductive member is used to connect external wiring.

9. The thimble device according to claim 1, characterized in that, The needle clamping assembly includes a needle clamping seat, a needle clamping cap and an ejector pin. One end of the needle clamping seat is connected to the power assembly, and the other end of the needle clamping seat is connected to the ejector pin. The needle clamping cap is sleeved on the outer periphery of one end of the needle clamping seat close to the ejector pin.

10. The thimble device according to claim 1, characterized in that, The second suction port includes a first opening and a second opening that are spaced apart, the second opening is spaced apart on the outer periphery of the first opening, the first opening is used for the needle clamping assembly to extend or retract, and both the first opening and the second opening are used for sucking the product.

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