Pusher mechanism and chip pusher device

Abstract

The application discloses a pushing mechanism and a chip pushing device. The pushing mechanism is used for accommodating a ejector pin and pushing the ejector pin out, and comprises a clamping piece and a holding piece. The upper surface of the clamping piece is inwardly recessed to form a plurality of accommodating grooves for accommodating the ejector pin. The clamping piece can be switched between a disassembled state and an elastically deformed state. When the clamping piece is in the elastically deformed state, the accommodating grooves and the ejector pin are in interference fit. The holding piece is connected to the clamping piece and comprises a holding part. The holding piece can be switched between a first position and a second position. When the holding piece is in the first position, the holding part is arranged in a spaced manner with the clamping piece, and the clamping piece is in the disassembled state. When the holding piece is in the second position, the holding part applies a force directed to the shaft center to the clamping piece, and the clamping piece is in the elastically deformed state. In the above arrangement, the position of the holding piece is changed, so that the fit relationship between the accommodating grooves in the clamping piece and the ejector pin is changed, and the operation is simple.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of semiconductor technology, and in particular to a pushing mechanism and a chip pushing device. BACKGROUND

[0002] In the packaging process of a chip, a step of lifting the chip from an operating table is involved. Generally, a chip pushing device with a plurality of push pins is used to lift the chip from the surface of the operating table in the vertical direction, so that a suction disc above the chip can grasp the chip through air pressure difference. Subsequently, the suction disc can rotate or transfer the chip. The chip pushing device includes the push pins and a clamping member for fixing the push pins, and the position of the push pins is changed by changing the position of the clamping member in the vertical direction. In order to ensure the stability of the position of the push pins, the clamping member and the push pins need to be tightly connected. The number of the push pins is multiple, and in order to ensure that the push pins can apply uniform pushing force to the chip so that the chip can be stably lifted, the distribution of the push pins is closely related to the size, shape and other parameters of the chip.

[0003] In different operations, the size, shape and other parameters of the chip can be different, and the chip pushing device needs to change the distribution position and number according to the size, shape and other parameters of the chip. However, the push pins and the clamping member are tightly connected, and the replacement process is extremely cumbersome. SUMMARY

[0004] The present application provides a pushing mechanism and a chip pushing device, which can improve the simplicity of replacing the push pins.

[0005] According to a first aspect of the present application, a pushing mechanism is provided, the pushing mechanism is used for accommodating push pins and pushing the push pins out, and the pushing mechanism comprises:

[0006] a clamping member, an upper surface of the clamping member is inwardly recessed to form a plurality of accommodation grooves for accommodating the push pins; the clamping member can be switched between a disassembled state and an elastically deformed state, and when the clamping member is in the elastically deformed state, the accommodation grooves and the push pins are in interference fit;

[0007] a holding member, the holding member is connected to the clamping member and is used for changing the position of the clamping member in the vertical direction; the holding member comprises a gripping portion; the holding member can be switched between a first position and a second position; when the holding member is in the first position, the gripping portion is spaced apart from the clamping member, and the clamping member is in the disassembled state; when the holding member is in the second position, the gripping portion is sleeved on and abuts against the clamping member, the gripping portion applies an axial force to the clamping member, and the clamping member is in the elastically deformed state.

[0008] Further, the tail end of the card mounting member is threadedly connected with the holding member, and the card mounting member and the holding member are relatively rotatable to switch the holding member between the first position and the second position.

[0009] Further, the ejecting mechanism further comprises a housing, and the housing encloses a receiving space for receiving the card mounting member.

[0010] The card mounting member is switchable between an ejecting position and a receiving position.

[0011] When the card mounting member is located at the receiving position, the ejecting pin and the card mounting member are both located in the receiving space.

[0012] When the card mounting member is located at the ejecting position, the ejecting pin extends out of the receiving space.

[0013] Further, the ejecting mechanism comprises a tenon and a mortise, one of which is arranged on the housing and the other of which is arranged on the card mounting member.

[0014] When the card mounting member is located at the ejecting position, the tenon and the mortise are tenon-jointed.

[0015] Further, the ejecting mechanism further comprises a fixing support, and the fixing support is connected with the housing; the housing is relatively rotatable with respect to the fixing support, and the housing is vertically movable with respect to the fixing support.

[0016] Further, the tail end of the card mounting member is threadedly connected with the holding member, and the threads on the card mounting member and the holding member are a first thread group.

[0017] The fixing support and the housing are threadedly connected, and the threads on the fixing support and the housing are a second thread group.

[0018] The first thread group and the second thread group have the same hand, pitch and lead.

[0019] Further, the card mounting member comprises a card slot portion and a first connecting portion, the card slot portion is provided with a receiving slot, and the first connecting portion is used for connecting the holding member.

[0020] From the direction in which the card mounting member points to the holding member, the cross-sectional area of the card slot portion gradually narrows.

[0021] Further, from the direction in which the holding member points to the card mounting member, the cross-sectional area of the holding portion gradually narrows.

[0022] The outer contour of the holding portion is matched with the outer contour of the card slot portion, and when the holding member is located at the second position, the holding portion and the card slot portion are in interference fit.

[0023] Further, the holding member comprises a second connecting part and a driving part which are detachably connected; the second connecting part is connected to the clamping member, and extends from the upper end of the second connecting part to a direction away from the driving part and forms the holding part;

[0024] The pushing mechanism further comprises a driving member which drives the driving part to move in the vertical direction.

[0025] According to a second aspect of the present application, a chip pushing device is provided, which comprises a ejector pin, a chip, a suction disc and the pushing mechanism as described above.

[0026] The ejector pin is fixed to the accommodating groove of the pushing mechanism.

[0027] The ejector pin and the pushing mechanism are used to change the relative position of the chip and the suction disc.

[0028] The technical solution provided by the embodiments of the present disclosure can have the following beneficial effects:

[0029] In the above arrangement, the relative position of the clamping member and the holding member in the pushing mechanism can be changed, and the state of the clamping member is changed by changing the position of the holding member; specifically, when the holding member is located at the first position, the holding part is arranged in a spaced manner with the clamping member, the clamping member is not subjected to the extrusion force applied by the holding part, and the clamping member is in a disassembled state; at this time, the friction between the clamping member and the ejector pin is small, which facilitates the ejector pin to be taken out of the accommodating groove of the clamping member, and also facilitates the ejector pin to be inserted into the accommodating groove; when the holding member is located at the second position, the holding part abuts against the clamping member and applies an extrusion force to the clamping member, the clamping member is elastically deformed and is in an elastically deformed state; at this time, the friction between the clamping member and the ejector pin is large, which facilitates the close combination of the clamping member and the ejector pin; by changing the position of the holding member, the state of the clamping member is changed, i.e. the fitting relationship between the accommodating groove in the clamping member and the ejector pin is changed, and the operation is simple.

[0030] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a cross-sectional structure schematic diagram of a chip pushing device according to an embodiment of the present application.

[0032] Figure 2 is another cross-sectional structure schematic diagram of a chip pushing device according to an embodiment of the present application.

[0033] Figure 3 is a cross-sectional structure schematic diagram of a pushing mechanism and an ejector pin according to an embodiment of the present application.

[0034] Figure 4FIG. 1 is a cross-sectional view of a card mounting member according to an embodiment of the present application.

[0035] Figure 5 FIG. 2 is a cross-sectional view of a housing according to an embodiment of the present application.

[0036] BRIEF DESCRIPTION OF DRAWINGS

[0037] Chip ejecting device 10

[0038] Chip 20

[0039] Protective film 30

[0040] Suction cup 40

[0041] Ejector pin 100

[0042] Ejection mechanism 200

[0043] Housing 210

[0044] Receiving space 211

[0045] Receiving passage 212

[0046] Card mounting member 220

[0047] Detached state 2201

[0048] Elastically deformed state 2202

[0049] Ejection position 2203

[0050] Receiving position 2204

[0051] Receiving groove 221

[0052] Card slot portion 222

[0053] First connecting portion 223

[0054] Gripping member 230

[0055] First position 2301

[0056] Second position 2302

[0057] Gripping portion 231

[0058] Second connecting portion 232

[0059] Driving portion 233

[0060] Connecting hole 234

[0061] Fastener 235

[0062] Driving member 240

[0063] Tenon 251

[0064] Mortise and tenon 252

[0065] First thread group 253

[0066] Second thread group 254

[0067] Fixed bracket 260

[0068] Vertical direction H Detailed Implementation

[0069] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses consistent with some aspects of this application as detailed in the appended claims.

[0070] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to limit the application. Unless otherwise defined, the technical or scientific terms used in this application should be understood in their ordinary sense by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in this application specification and claims do not indicate any order, quantity, or importance, but are only used to distinguish different components. Similarly, the terms "a" or "one," etc., do not indicate a quantity limitation, but rather indicate the presence of at least one, which will be separately stated if only "a" is referred to. "A plurality" or "several" means two or more. Unless otherwise indicated, the terms "front," "rear," "lower," and / or "upper," etc., are for ease of description only and are not limited to a location or spatial orientation. The terms "comprising" or "including," etc., mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including" and their equivalents, and do not exclude other elements or objects. The terms “connection” or “link” are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. The singular forms “a,” “the,” and “the” used in this specification and the appended claims are also intended to include the plural forms, unless the context clearly indicates otherwise. It should also be understood that the term “and / or” as used herein refers to and includes any or all possible combinations of one or more of the associated listed items.

[0071] The embodiments of this application will now be described in detail with reference to the accompanying drawings. Unless otherwise specified, the features in the following embodiments can be combined with each other.

[0072] As shown in Figures 1-3 The present application relates to a chip pushing device 10, which includes a needle 100, a pushing mechanism 200, a chip 20 and a suction plate 40.

[0073] The pushing mechanism 200 is used to accommodate the needle 100 and to change the position of the needle 100 in the vertical direction H and push the needle 100 out. The needle 100 can extend out of the inside of the pushing mechanism 200 (see Figure 1 ), or can be accommodated in the inside of the pushing mechanism 200 (see Figure 2 and Figure 3 ). The suction plate 40 is located above the chip 20. The needle 100 can abut against the lower surface of the chip 20, and when the needle 100 is pushed out, the chip 20 is lifted up, and the distance between the chip 20 and the suction plate 40 is reduced. In other words, the needle 100 and the pushing mechanism 200 are used to change the relative position of the chip 20 and the suction plate 40.

[0074] In the packaging process of the chip 20, there is a step that requires the chip 20 to be lifted up by using the chip pushing device 10. The chip 20 is placed above the pushing mechanism 200 and the needle 20. At this time, referring to Figure 1 , the needle 100 is accommodated in the inside of the pushing mechanism 200, and the chip 20 abuts against the upper surface of the pushing mechanism 200. At the same time, the needle 100 located in the pushing mechanism 200 faces the chip 20. There is also a protective film 30 between the chip 20 and the pushing mechanism 200. The chip 20 is spaced apart from the suction plate 40 located above the chip 20. Referring to Figure 2 , when it is necessary to fix the chip 20 and the suction plate 40, the pushing mechanism 200 is operated so that the needle 100 fixed in the pushing mechanism 200 extends outwards, the needle 100 pierces the protective film 30 and then comes into contact with the surface of the chip 20 and applies a vertical upward force to the chip 20, thereby driving the chip 20 to move in the direction of approaching the suction plate 40 until the suction plate 40 and the chip 20 come into contact and the air between the suction plate 40 and the chip 20 is as much as possible exhausted, so that the suction plate 40 and the chip 20 can be stably connected by using the air pressure difference.

[0075] In the above operation, in order to ensure that the suction plate 40 and the chip 20 can be stably connected, it is necessary to exhaust as much as possible the gas between the two, so it is necessary to ensure that the moving speed of the chip 20 at each position when the chip 20 moves in the direction of approaching the suction plate 40 is the same, and the surface of the chip 20 approaching the suction plate 40 is as much as possible in the same plane.

[0076] In order to achieve the above effects, the number and distribution of the plurality of ejector pins 100 in the chip ejecting device 10 need to be adjusted. When the size of the area surrounded by the plurality of ejector pins 100 is the same as the size of the projection of the chip 20 on the ejecting mechanism 200, and the plurality of ejector pins 100 are uniformly distributed, the plurality of ejector pins 100 can uniformly apply the same force to the chip 20 on the ejecting mechanism 200, so that the chip 20 can stably move close to the suction plate 40 and stably connect with the suction plate 40.

[0077] However, in different operations, the size, shape and other parameters of the chip 20 can not be the same, and the chip ejecting device 10 needs to change the distribution position and number according to the size, shape and other parameters of the chip 20.

[0078] As shown in Figures 1-3 In the embodiment, the ejecting mechanism 200 includes a housing 210, a clamping piece 220, a holding piece 230 and a driving piece 240.

[0079] The upper surface of the clamping piece 220 is inwardly recessed to form a plurality of accommodation grooves 221 for accommodating the ejector pins 100 (see Figure 4 The ejector pins 100 can be fixed inside the accommodation grooves 221. In actual operation, the number of the ejector pins 100 and the distribution of the ejector pins 100 can be determined according to the size and shape of the chip 20. In the embodiment, the accommodation grooves 221 and the ejector pins 100 are cylindrical structures. Of course, in other embodiments, the accommodation grooves 221 and the ejector pins 100 can also have other shapes, and in order to ensure that the two can be tightly connected, the shapes of the accommodation grooves 221 and the ejector pins 100 are matched. The part of the clamping piece 220 that fixes the ejector pins 100 is made of a material that can be elastically deformed (for example: silica gel, etc.). Thus, the clamping piece 220 can be switched between a disassembled state 2201 and an elastically deformed state 2202. When the clamping piece 220 is in the elastically deformed state 2202, the accommodation grooves 221 and the ejector pins 100 are interference fit, and it is difficult for the user to pull the ejector pins 100 out of the accommodation grooves 221 or insert new ejector pins 100 into the accommodation grooves 221 (see Figure 1 and Figure 2 When the clamping piece 220 is in the disassembled state 2201, the accommodation grooves 221 and the ejector pins 100 can be clearance fit; or the sizes of the accommodation grooves 221 and the ejector pins 100 are just the same; or the accommodation grooves 221 and the ejector pins 100 are still interference fit, but the degree of deformation of the clamping piece 220 at this time is much smaller than the degree of deformation when the clamping piece 220 is in the elastically deformed state 2202. The user can easily pull the ejector pins 100 out of the accommodation grooves 221 or easily insert the ejector pins 100 into the accommodation grooves 221 (see Figure 3

[0080] ​The shell 210 encloses a receiving space 211 for receiving the card mounting member 220. The card mounting member 220 can move along the vertical direction H relative to the receiving space 211, and can switch between the ejection position 2203 and the receiving position 2204.

[0081] As shown in FIG. 1, when the ejector pin 100 is fixed to the card mounting member 220, and when the card mounting member 220 is located at the receiving position 2204, the ejector pin 100 and the card mounting member 220 are both located in the receiving space 211. At this time, the chip 20 can abut against the upper surface of the shell 210, and the chip 20 and the suction disc 40 are spaced apart. Figure 1

[0082] As shown in FIG. 2, when the ejector pin 100 is fixed to the card mounting member 220, the card mounting member 220 is in the elastically deformed state 2202, and when the card mounting member 220 is located at the ejection position 2203, the card mounting member 220 drives the ejector pin 100 to extend out of the receiving space 211, so as to push the chip 20 abutting against the shell 210 to move in the direction close to the suction disc 40. Figure 2

[0083] As shown in FIG. 3, when the ejector pin 100 is located in the receiving groove 221 of the card mounting member 220, the card mounting member 220 is in the disassembled state 2201, and when the card mounting member 220 is located at the ejection position 2203, the card mounting member 220 drives the ejector pin 100 to extend out of the receiving space 211. At this time, the user can hold the part of the ejector pin 100 extending out of the receiving space 211, and apply a force to the ejector pin 100 away from the card mounting member 220, so as to easily pull the ejector pin 100 out of the receiving groove 221, thereby realizing the disassembly of the ejector pin 100 and the ejecting mechanism 200. Alternatively, the user can easily insert the ejector pin 100 into the receiving groove 221 which has not yet been provided with the ejector pin 100, thereby realizing the connection of the ejector pin 100 and the ejecting mechanism 200, which is convenient to operate. Figure 3

[0084] As shown in FIG. 4, one end of the holding member 230 is connected to the card mounting member 220, and the other end is connected to the driving member 240. The holding member 230 is used to change the position of the card mounting member 220 along the vertical direction H. At the same time, the driving member 240 can also change the relative position relationship between the card mounting member 220 and the card mounting member 220. The driving member 240 can drive the holding member 230 to move along the vertical direction H, so that the holding member 230 can drive the card mounting member 220 to move along the vertical direction H, thereby switching the card mounting member 220 between the ejection position 2203 and the receiving position 2204. In other words, the height position of the card mounting member 220 is determined only by the driving member 240. In this embodiment, the driving member 240 is a motor, of course, in other embodiments, the driving member 240 can also be other driving devices. Figures 1 to 3

[0085] ​​​​Further, the holding member 230 comprises a holding portion 231 for extruding the holding member 230. The holding member 230 can be switched between a first position 2301 and a second position 2302. As shown in Figure 3 when the holding portion 231 is located at the first position 2301, the holding portion 231 is spaced apart from the clamping member 220, at this time, there is a gap between the holding portion 231 and the clamping member 220, the holding portion 231 cannot exert extrusion force on the clamping member 220, the clamping member 220 is located in the disassembled state 2201, that is, the accommodating groove 221 of the clamping member 220 and the ejector pin 100 cannot be tightly connected, the user can easily disassemble the ejector pin 100 located in the accommodating groove 221, and can also easily insert the ejector pin 100 into the accommodating groove 221. As shown in Figure 1 and Figure 2 when the holding member 230 is located at the second position 2302, the holding portion 231 is sleeved on and abuts against the clamping member 220, the holding portion 231 exerts a force directed to the axis of the clamping member 220, and the clamping member 220 is located in the elastically deformed state 2202. In other words, the clamping member 220 is extruded by the holding portion 231 and elastically deformed, the space of the accommodating groove 221 is compressed, the accommodating groove 221 and the ejector pin 100 are in interference fit, thereby realizing the tight fit with the ejector pin 100 located in the accommodating groove 221. At this time, the position of the chip 20 in the vertical direction H can be changed by using the push-out mechanism 200 and the ejector pin 100.

[0086] In the above arrangement, the relative position of the clamping member 220 and the holding member 230 in the push-out mechanism 200 can be changed, and the state of the clamping member 220 is changed by changing the position of the holding member 230. Specifically, when the holding member 230 is located at the first position 2301, the holding portion 231 is spaced apart from the clamping member 220, the clamping member 220 is not extruded by the holding portion 231, and the clamping member 220 is located in the disassembled state 2201. At this time, the friction between the clamping member 220 and the ejector pin 100 is small, which facilitates the ejector pin 100 to be taken out of the accommodating groove 221 of the clamping member 220, and also facilitates the ejector pin 100 to be inserted into the accommodating groove 221. When the holding member 230 is located at the second position 2302, the holding portion 231 abuts against the clamping member 220 and exerts extrusion force on the clamping member 220, the clamping member 220 is elastically deformed and is in the elastically deformed state 2202. At this time, the friction between the clamping member 220 and the ejector pin 100 is large, which facilitates the tight combination of the clamping member 220 and the ejector pin 100. Therefore, in the above arrangement, the state of the clamping member 220 is changed by changing the position of the holding member 230, that is, the fitting relationship between the accommodating groove 221 of the clamping member 220 and the ejector pin 100 is changed, and the operation is simple.

[0087] Further, the tail end of the card mounting member 220 is threadedly connected with the holding member 230. Through the above arrangement, the holding member 230 can limit the position of the card mounting member 220, and meanwhile, the card mounting member 220 and the holding member 230 can rotate relative to each other. When the card mounting member 220 rotates relative to the holding member 230, the position relationship between the card mounting member 220 and the holding member 230 can be changed, so that the holding member 230 can be switched between the first position 2301 and the second position 2302. Meanwhile, the card mounting member 220 and the holding member 230 are threadedly connected, and when the card mounting member 220 rotates relative to the holding member 230, the holding member 230 can still provide sufficient support force along the vertical direction H for the card mounting member 220, so as to avoid the falling of the card mounting member 220 and maintain the height position of the card mounting member 220.

[0088] It should be noted that in the present embodiment, the position of the holding member 230 along the vertical direction H is controlled by the driving member 240 only. When the card mounting member 220 and the holding member 230 rotate relative to each other through the threadedly connected relationship to change the position relationship between the card mounting member 220 and the holding member 230, only the card mounting member 220 moves along the vertical direction H. When the relative position between the card mounting member 220 and the holding member 230 is changed, the card mounting member 220 can be switched between the ejection position 2203 and the accommodation position 2204, and can be switched between the disassembled state 2201 and the elastically deformed state 2202. In the present embodiment, when the card mounting member 220 is in the disassembled state 2201, it is located at the ejection position 2203, and the holding member 230 is located at the first position 2301.

[0089] Further, as shown in Figure 4 and Figure 5 , if necessary, in combination with Figures 1 to 3 . The ejecting mechanism 200 includes a tenon 251 and a mortise 252. One of the tenon 251 and the mortise 252 is arranged on the shell 210, and the other is arranged on the card mounting member 220. When the card mounting member 220 is located at the ejection position 2203, the tenon 251 and the mortise 252 are tenon-jointed. In the present embodiment, in order to facilitate the card mounting member 220 to change the position along the vertical direction H and switch between the ejection position 2203 and the accommodation position 2204, the tenon 251 is fixed to the shell 210, and the mortise 252 is arranged on the card mounting member 220.

[0090] Specifically, as shown in Figures 1 to 3As shown, the housing 210 is provided with a through accommodating channel 212, which serves as at least part of the accommodating space 211. The clamping member 220 is arranged in the accommodating channel 212. The edge of the upper surface of the clamping member 220 is inwardly recessed to form a tenon groove 252. The upper surface of the housing 210 extends into the accommodating channel 212 to form a tenon 251. When the clamping member 220 is in the ejection position 2203, the tenon 251 on the housing 210 and the tenon groove 252 on the clamping member 220 are tenon-jointed, and the housing 210 can limit the clamping member 220 in the vertical direction H. At this time, the housing 210 can drive the clamping member 220 to rotate synchronously relative to the holding member 230, so that the holding member 230 can be switched between the first position 2301 and the second position 2302. At the same time, since the clamping member 220 and the holding member 230 are connected by threads, during the rotation of the clamping member 220 driven by the housing 210, the holding member 230 can still provide the clamping member 220 with support in the vertical direction H.

[0091] Further, the ejection mechanism 200 further comprises a fixed support 260, which can be fixedly connected to a machine tool, a table top or the like. The fixed support 260 is connected with the housing 210, thereby playing a fixing role for the overall structure. The housing 210 can rotate relative to the fixed support 260. Since the fixed support 260 is fixed, during the rotation of the housing 210 relative to the fixed support 260, the housing 210 can move along the vertical direction H relative to the fixed support 260. If the clamping member 220 is in the ejection position 2203, the tenon 251 and the tenon groove 252 are tenon-jointed, and the housing 210 rotates relative to the fixed support 260, which can drive the clamping member 220 to rotate relative to the holding member 230, thereby changing the position of the holding member 230 and further changing the state of the clamping member 220.

[0092] In this embodiment, the tail end of the mounting member 220 is threadedly connected to the gripper 230. The threads on the mounting member 220 and the gripper 230 are designated as the first thread group 253. The fixing bracket 260 and the housing 210 are threadedly connected, and the threads on the fixing bracket 260 and the housing 210 are designated as the second thread group 254. The first thread group 253 and the second thread group 254 have the same direction of rotation, pitch, and lead. In the above configuration, the rotational speed, direction, and relative movement distance of the housing 210 relative to the fixing bracket 260 are the same as those of the mounting member 220 relative to the gripper 230. Through the above configuration, the tenon 252 and the tenon 251 can ensure the synchronous rotation of the housing 210 and the mounting member 220. By setting the direction of rotation, pitch, and lead of the first thread group 253 and the second thread group 254, it can be ensured that while rotating the outer shell 210, the mounting part 220 can be driven to rotate synchronously relative to the gripping part 230, so that the distance that the outer shell 210 and the mounting part 220 move in the vertical direction H is the same, ensuring a stable tenon-and-mortise relationship between the mounting part 220 and the outer shell 210.

[0093] like Figures 1-3 As shown, the mounting component 220 includes a slot portion 222 and a first connecting portion 223. The slot portion 222 has a receiving groove 221, and the first connecting portion 223 is used to connect the gripper 230. In this embodiment, the first connecting portion 223 has a cylindrical structure and is threaded. From the direction of the mounting component 220 toward the gripper 230, the cross-sectional area of ​​the slot portion 222 gradually narrows.

[0094] In the above configuration, the first connecting portion 223 facilitates the threaded connection between the mounting member 220 and the gripper 230. By setting the shape of the slot portion 222, it is beneficial for the gripper 231 to press the slot portion 222 inward during the process of the gripper 230 switching from the first position 2301 to the second position 2302.

[0095] The gripper 230 includes a detachably connected second connecting portion 232 and a driving portion 233. This configuration facilitates the inspection and replacement of the gripper 230. The second connecting portion 232 connects to the mounting member 220. In this embodiment, the upper surface of the second connecting portion 232 is recessed downwards to form a connecting hole 234. The surface of the connecting hole 234 is threaded, and the second connecting portion 232 and the first connecting portion 223 of the mounting member 220 are threadedly connected. The gripping portion 231 extends from the upper end of the second connecting portion 232 in a direction away from the driving portion 233. The driving member 240 drives the driving portion 233 to move in the vertical direction H. In this embodiment, the second connecting portion 232 and the driving portion 233 are connected by a fastener 235 and move synchronously in the vertical direction H under the drive of the driving portion 233.

[0096] Further, the holding member 230 is tapered towards the clamping member 220, and the cross-sectional area of the holding portion 231 is gradually reduced. The outer contour of the holding portion 231 is adapted to the outer contour of the clamping groove portion 222, and the holding portion 231 is in interference fit with the clamping groove portion 222 when the holding member 230 is in the second position 2302. With the above arrangement, when the holding member 230 is in the second position 2302, the holding member 230 can apply a relatively uniform force to each part of the clamping groove portion 222, so that the deformation of each part of the accommodating groove 221 is relatively balanced, so as to apply a more balanced extrusion force to the pogo pin 100. Of course, the cross-sectional area of the holding portion 231 can also remain the same (see FIG. 2B) when the holding member 230 is tapered towards the clamping member 220. The clamping member 220 in the above arrangement is convenient to manufacture. Figures 1-3 The clamping member 220 in the above arrangement is convenient to manufacture.

[0097] In actual use, if it is necessary to change the position of the chip 20 by using the ejecting mechanism 200 and the pogo pin 100, first, it is necessary to ensure that the clamping member 220 is in the accommodating position 2204, and the holding member 230 is in the second position 2302, so as to ensure that the clamping member 220 is in the elastically deformed state 2202, i.e., the pogo pin 100 and the clamping member 220 are fixedly connected, and both the pogo pin 100 and the clamping member 220 are arranged inside the housing 210. Then, the chip 20 and the protective film 30 can be placed on the upper surface of the housing 210, and it is ensured that the pogo pin 100 is located below the chip 20. At this time, the structure of the chip ejecting device 10 is as shown in FIG. 2C. Figure 1 Then, the driving member 240 drives the holding member 230, so that the holding member 230 drives the clamping member 220 to move upward along the vertical direction H until the pogo pin 100 fixed in the clamping member 220 extends out of the accommodating space 211, and the clamping member 220 moves to the ejecting position 2203, at which time the tenon 251 and the mortise 252 are tenon-and-mortise connected. In this process, the pogo pin 100 can pierce the protective film 30 and lift the chip 20 on the housing 210. When the clamping member 220 drives the pogo pin 100 to move to the ejecting position 2203, the chip 20 and the suction cup 40 are tightly connected. At this time, the structure of the chip ejecting device 10 is as shown in FIG. 2D. Figure 2

[0098] If it is necessary to disassemble or replace the pogo pin 100 fixed in the clamping member 220, first, the driving member 240 drives the holding member 230, so that the clamping member 220 moves to the ejecting position 2203 and is tenon-and-mortise connected with the housing 210. At this time, the pogo pin 100 extends out of the accommodating space 211. At this time, the structure of the chip ejecting device 10 is as shown in FIG. 2E. Figure 2 ​The shell 210 is rotated, and the shell 210 and the fixed support 260 are threadedly connected, so that the shell 210 is moved upward along the vertical direction H while rotating. The clamping piece 220 is rotated synchronously while moving with the shell 210. The clamping piece 220 and the holding piece 230 are threadedly connected, so that the clamping piece 220 is moved upward along the vertical direction H synchronously with the shell 210 while rotating. In this process, the distance between the holding piece 230 and the clamping piece 220 gradually increases, and the holding piece 230 is switched from the second position 2302 to the first position 2301. When the holding piece 230 is switched to the first position 2301, the holding part 231 in the holding piece 230 and the clamping groove part 222 are spaced apart, the clamping piece 220 is in the disassembled state 2201, and the user can easily pull the ejector pin 100 out of the accommodating groove 221 or easily insert the ejector pin 100 into the accommodating groove 221. At this time, the structure of the ejecting mechanism 200 and the ejector pin 100 is as shown in FIG. 2B. Figure 3

[0099] Then, if the ejector pin 100 and the clamping piece 220 need to be fixedly connected again, the shell 210 only needs to be rotated in the reverse direction again to move the shell 210 downward along the vertical direction H. The clamping piece 220 is rotated in the reverse direction and moves downward along the vertical direction H under the driving of the shell 210. In this process, the holding piece 230 is switched from the first position 2301 to the second position 2302, the holding part 231 abuts against the clamping groove part 222 and exerts a pressing force thereon, so that the accommodating groove 221 and the ejector pin 100 are in interference fit, and the fixed connection of the clamping piece 220 and the ejector pin 100 is achieved. At this time, the structure of the chip ejecting device 10 is as shown in FIG. 2A. Figure 2

[0100] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as the above preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content without departing from the scope of the technical solution of the present application, and the equivalent embodiments with equivalent changes are obtained. Any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present application are still within the scope of the technical solution of the present application.​​

Claims

1. A ejection mechanism for receiving and ejecting a ejector pin, characterized in that, The launching agencies include: The fastener has an inwardly recessed upper surface forming a receiving groove for accommodating a ejector pin, and there are multiple receiving grooves; the fastener can switch between a disassembled state and an elastically deformed state, and when the fastener is in the elastically deformed state, the receiving groove and the ejector pin are in an interference fit; A gripping member is connected to the latching member and used to change the position of the latching member in the vertical direction; the gripping member includes a holding portion; the gripping member can switch between a first position and a second position; when the gripping member is in the first position, the holding portion is spaced apart from the latching member, and the latching member is in a disassembled state; when the gripping member is in the second position, the holding portion is sleeved on and abuts against the latching member, the holding portion applies a force pointing towards the axis to the latching member, and the latching member is in an elastically deformed state; The ejection mechanism also includes a housing that encloses a receiving space for accommodating the card; The ejection mechanism further includes a fixed bracket, which is fixed; the fixed bracket is connected to the outer casing; the outer casing can rotate relative to the fixed bracket, and during the rotation of the outer casing relative to the fixed bracket, the outer casing can move vertically relative to the fixed bracket, and can drive the locking component to rotate relative to the gripper, changing the position of the gripper to change the state of the locking component.

2. The ejection mechanism as described in claim 1, characterized in that, The tail end of the mounting component is threadedly connected to the gripper, and the mounting component and the gripper can rotate relative to each other to allow the gripper to switch between a first position and a second position.

3. The ejection mechanism as described in claim 1, characterized in that, The card holder can switch between an ejected position and a receiving position; When the mounting component is in the receiving position, both the ejector pin and the mounting component are located in the receiving space; When the mounting element is in the ejected position, the ejector pin extends out of the receiving space.

4. The ejection mechanism as described in claim 3, characterized in that, The ejection mechanism includes a tenon and a mortise; one of the tenon and the mortise is disposed on the outer casing, and the other is disposed on the mounting component. When the mounting piece is in the ejected position, the tenon and the mortise are tenoned together.

5. The mechanism as described in claim 1, characterized in that, The tail end of the mounting component is threadedly connected to the gripper, and the threads on the mounting component and the gripper constitute a first thread group. The fixed bracket and the outer shell are threadedly connected, and the threads on the fixed bracket and the outer shell are a second thread group; The first and second thread groups have the same direction of rotation, pitch, and lead.

6. The ejection mechanism as described in claim 1, characterized in that, The card holder includes a card slot and a first connecting part. The card slot is provided with a receiving groove, and the first connecting part is used to connect a gripping part. The cross-sectional area of ​​the slot gradually narrows from the direction from the card holder to the gripper.

7. The ejection mechanism as described in claim 6, characterized in that, From the direction of the gripping member pointing to the mounting member, the cross-sectional area of ​​the gripping part gradually narrows; The outer contour of the grip portion is adapted to the outer contour of the slot portion, and when the grip member is in the second position, the dimensions of the grip portion and the slot portion are interference fit.

8. The ejection mechanism as described in claim 1, characterized in that, The gripping member includes a detachably connected second connecting part and a driving part; the second connecting part is connected to the latching member and extends from the upper end of the second connecting part in a direction away from the driving part to form the gripping part; The ejection mechanism also includes a driving component, which drives the driving part to move in the vertical direction.

9. A chip ejection device, characterized in that, The chip ejection device includes a ejector pin, a chip, a suction cup, and an ejection mechanism as described in any one of claims 1-8; The ejector pin is fixed to the receiving groove of the ejection mechanism; The ejector pin and ejection mechanism are used to change the relative position of the chip and the suction cup.

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