A multi-functional bonding fixture and its usage method

Abstract

This invention provides a multifunctional bonding fixture and its usage method. The fixture uses a chip processing stage as a base. After the chip is processed on the base, a cover plate is placed on top of the base and connected to it. A clamping rod and a push rod are located in the middle of the cover plate. The clamping rod and push rod are simultaneously inserted into the fixing post of the base. By pressing the clamping rod on the top of the cover plate, the clamping element located at the lower end of the clamping rod is engaged between the outer side of the fixing post and the inner side of the push rod, thus fixing the clamping rod and push rod to the base 1. By grasping the push rod or clamping rod, the chip can be transferred immediately after processing without waiting for it to cool down, significantly shortening the overall chip bonding operation time.

Description

Technical Field

[0001] This invention relates to the field of chip bonding processes, and in particular to a multifunctional bonding fixture and its usage method. Background Technology

[0002] During the chip bonding process, the temperature typically reaches 150-170℃. If the chip is handled manually, it will burn the hand and make it difficult to transfer the chip directly. Existing chip fixtures on the market usually require the chip to be processed and cooled completely before it can be clamped and transferred, which takes too long. Furthermore, clamping the chip directly often damages the chip itself.

[0003] Therefore, overcoming the shortcomings of the existing technology is an urgent problem to be solved in this technical field. Summary of the Invention

[0004] The technical problem to be solved by this invention is how to transfer the chip in a shorter time after the chip bonding process.

[0005] The present invention adopts the following technical solution:

[0006] In a first aspect, a multi-functional bonding fixture includes: a base 1, a cover plate 2, a push rod 3, and a clamping rod 4, wherein:

[0007] The base 1 is provided with a fixing column 11, and the upper end of the fixing column 11 is provided with a boss 111; the cover plate 2 is provided with a through hole 21, the push rod 3 passes through the through hole 21 and is connected to the cover plate 2, the lower end of the inner wall of the push rod 3 is provided with a tapered slope, and the clamping rod 4 is provided with a clamping member 41.

[0008] Both the clamping rod 4 and the push rod 3 are hollow. Part of the clamping rod 4 is sleeved inside the push rod 3. A first spring 42 is provided between the clamping rod 4 located outside the push rod 3 and the push rod 3. The distance by which the clamping member 41 protrudes relative to the inner wall of the clamping rod 4 changes under the contact of the tapered inclined surface.

[0009] During the downward movement of the clamping rod 4 as it compresses the first spring 42, the protrusion distance of the clamping member 41 relative to the inner wall of the clamping rod 4 decreases, so as to pass through the boss 111.

[0010] After the external force applied to the clamping rod 4 is released, the clamping rod 4 moves upward under the action of the first spring 42, and the protrusion distance of the clamping member 41 relative to the inner wall of the clamping rod 4 increases, and it abuts against the boss 111.

[0011] Preferably, the base 1 is provided with a slot 14, and the fixing post 11 is provided at the bottom of the slot 14. The slot 14 is used for the insertion of the push rod 3 and the clamping rod 4.

[0012] Preferably, the clamping member 41 is a steel ball 411, which is disposed in the steel ball hole 412 at the lower end of the clamping rod 4 and can move radially in the steel ball hole 412, thereby changing the protrusion distance between the steel ball 411 and the inner wall of the clamping rod 4.

[0013] Preferably, the diameter of the steel ball hole 412 is smaller than the diameter of the steel ball 411, the steel ball 411 is disposed in the steel ball hole 412 from the outside of the clamping rod 4, the steel ball 411 is limited by the steel ball hole 412 in the radial inward direction, and the steel ball 411 is limited by the inner wall of the push rod 3 in the radial outward direction;

[0014] When the steel ball 411 passes through the conical inclined surface of the thrust rod 3, the protrusion distance of the steel ball 411 relative to the inner wall of the clamping rod 4 changes, thereby abutting against the boss 111 or being able to pass through the periphery of the boss 111.

[0015] Preferably, the clamping member 41 is a cantilever arm 413, which is disposed at the lower end of the clamping rod 4, and an abutment platform 4111 is provided on the outer side of the cantilever arm 413. The abutment platform 4111 is used to abut against the inner wall of the thrust rod 3. The free end of the lower end of the cantilever arm 413 can move radially, thereby changing the protrusion distance between the cantilever arm 413 and the inner wall of the clamping rod 4.

[0016] When the cantilever arm 413 passes over the tapered inclined surface of the thrust rod 3, the protrusion distance of the free end relative to the inner wall of the clamping rod 4 changes, thereby abutting against the boss 111 or being able to pass through the periphery of the boss 111.

[0017] Preferably, the upper surface of the base 1 is provided with a first chip slot for placing chips, and the lower surface of the cover plate 2 is provided with a second chip slot at a corresponding position. When the cover plate 2 covers the upper surface of the base 1, the space between the corresponding first chip slot and the second chip slot is used to accommodate the chip.

[0018] Preferably, the cover plate 2 and the base 1 are provided with corresponding positioning holes 12 at their periphery. The corresponding positioning holes 12 are engaged by positioning pins 13 to ensure that the second chip slot on the lower surface of the cover plate 2 corresponds to the first chip slot on the upper surface of the base 1.

[0019] Preferably, the thrust rod 3 passes through the through hole 21 and is connected to the cover plate 2, specifically including:

[0020] The outer side of the thrust rod 3 is provided with a limiting pin 31. When the thrust rod 3 is inserted into the through hole 21 of the cover plate 2, the limiting pin 31 is inserted into the inner wall of the through hole 21, thereby connecting the thrust rod 3 and the cover plate 2.

[0021] Preferably, a second spring 33 is also provided on the outer side of the push rod 3, and a disc platform 32 is provided on the upper end of the push rod 3. The upper end of the second spring 33 abuts against the lower surface of the disc platform 32, and the lower end of the second spring 33 abuts against the upper surface of the cover plate 2. The second spring 33 and the limiting pin 31 work together to ensure that the push rod 3 is connected to the cover plate 2 while still having a degree of freedom of movement.

[0022] Secondly, a method of using a multi-functional bonding fixture, wherein the multi-functional bonding fixture is used, wherein:

[0023] A downward force is applied to the clamping rod 4, and the conical inclined surface of the push rod 3 increases the protrusion distance of the clamping member 41 relative to the inner wall of the clamping rod 4, so that the fixing post 11 passes through the channel formed by the clamping member 41;

[0024] When the force applied to the clamping rod 4 is removed, the clamping rod 4 moves upward relative to the push rod 3 due to the elastic restoring force of the first spring 42. Under the action of the tapered inclined surface of the push rod 3, the protrusion distance of the clamping member 41 relative to the inner wall of the clamping rod 4 is reduced, thereby restricting the fixing post 11 from passing through the channel formed by the clamping member 41. The clamping member 41 abuts against the boss 111 of the fixing post 11, thereby fixing the cover plate 2 to the base 1.

[0025] This invention provides a multifunctional bonding fixture and its usage method. A chip processing worktable serves as a base 1. After the chip is processed on the base 1, a cover plate 2 is placed on top of the base 1 and connected to it. A clamping rod 4 and a push rod 3 are located in the middle of the cover plate 2. The clamping rod 4 and the push rod 3 are simultaneously inserted into the fixing post 11 of the base 1. By pressing the clamping rod 4 on the top of the cover plate 2, the clamping member 41 located at the lower end of the clamping rod 4 is engaged between the outer side of the fixing post 11 and the inner side of the push rod 3, thus completing the fixation of the clamping rod 4 and the push rod 3 to the base 1. By grasping the push rod 3 or the clamping rod 4, the chip can be transferred immediately after processing without waiting for it to cool down, thereby significantly shortening the overall chip bonding operation time. Attached Figure Description

[0026] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments of the present invention will be briefly described below. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of a multifunctional bonding fixture provided in an embodiment of the present invention;

[0028] Figure 2 This is an exploded view of the structure of a multifunctional bonding fixture provided in an embodiment of the present invention;

[0029] Figure 3 This is a cross-sectional view of a multifunctional bonding fixture in the engaged state provided by an embodiment of the present invention;

[0030] Figure 4 This is a cross-sectional view of a multifunctional bonding fixture provided in an embodiment of the present invention when the clamping rod is pressed down;

[0031] Figure 5 This is a cross-sectional view of a multifunctional bonding fixture in the separated state provided in an embodiment of the present invention;

[0032] Figure 6 This is a schematic diagram of the structure of the base of a multifunctional bonding fixture provided in an embodiment of the present invention;

[0033] Figure 7 This is a schematic diagram of another multifunctional bonding fixture (cover plate not shown) provided in an embodiment of the present invention;

[0034] Figure 8 This is a cross-sectional view of another multifunctional bonding fixture provided in an embodiment of the present invention in the engaged state;

[0035] Figure 9 This is a partial structural diagram of a multifunctional bonding fixture provided in an embodiment of the present invention, where the clamping element is a steel ball;

[0036] Figure 10 This is a cross-sectional view of a multifunctional bonding fixture provided in this embodiment of the invention, wherein the clamping element is a steel ball and the clamping rod is pressed down;

[0037] Figure 11 This is a cross-sectional view of a multifunctional bonding fixture provided in an embodiment of the present invention, wherein the clamping component is a steel ball and the fixture is in the engaged state.

[0038] Figure 12 This is a cross-sectional view of a multifunctional bonding fixture provided in an embodiment of the present invention, wherein the clamping member is a cantilever arm and the clamping rod is pressed down;

[0039] Figure 13 This is a cross-sectional view of a multifunctional bonding fixture provided in an embodiment of the present invention, wherein the clamping member is a cantilever arm and is in the engaged state;

[0040] The labels in the attached diagram are as follows:

[0041] Base 1; cover plate 2; push rod 3; clamping rod 4; clamping component 41; steel ball 411; steel ball hole 412; cantilever arm 413; first spring 42; fixing column 11; boss 111; positioning hole 12; positioning pin 13; slot 14; limit pin 31; disc platform 32; second spring 33; through hole 21; abutment platform 4111. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0043] In the description of this invention, the terms "inner", "outer", "longitudinal", "lateral", "upper", "lower", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and do not require that this invention must be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0044] Furthermore, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0045] Example 1:

[0046] Embodiment 1 of the present invention provides a multifunctional bonding fixture; such as Figure 1-4 As shown, it includes: a base 1, a cover plate 2, a push rod 3, and a clamping rod 4, wherein:

[0047] The base 1 is provided with a fixing column 11, and the upper end of the fixing column 11 is provided with a boss 111; the cover plate 2 is provided with a through hole 21, the push rod 3 passes through the through hole 21 and is connected to the cover plate 2, and the lower end of the inner wall of the push rod 3 is provided with a tapered slope.

[0048] Both the clamping rod 4 and the push rod 3 are hollow. Part of the clamping rod 4 is sleeved inside the push rod 3. A first spring 42 is provided between the clamping rod 4 located outside the push rod 3 and the push rod 3.

[0049] The clamping rod 4 is provided with a clamping member 41, and the protrusion distance of the clamping member 41 relative to the inner wall of the clamping rod 4 changes under the contact of the tapered inclined surface.

[0050] During the downward movement of the clamping rod 4 as it compresses the first spring 42, the protrusion distance of the clamping member 41 relative to the inner wall of the clamping rod 4 decreases, so as to pass through the boss 111.

[0051] After the external force applied to the clamping rod 4 is released, the clamping rod 4 moves upward under the action of the first spring 42, and the protrusion distance of the clamping member 41 relative to the inner wall of the clamping rod 4 increases, and it abuts against the boss 111.

[0052] The number of clamping members 41 is multiple, for example, 2, 3 or 4. Multiple clamping members 41 form a channel. When the protrusion distance of the clamping member 41 relative to the inner wall of the clamping rod 4 changes, the size of the channel formed by the multiple clamping members 41 also changes accordingly, so as to pass through or clamp the boss 111.

[0053] The lower end of the thrust rod 3 is a hollow frustum-shaped part, and the end with a larger opening is located at the tail of the thrust rod 3 so as to form a tapered slope at the lower end of the inner wall of the thrust rod 3.

[0054] When the position of the clamping member 41 relative to the conical slope changes, the protrusion distance of the clamping member 41 relative to the inner wall of the clamping rod 4 also changes accordingly. Changing the distance between different clamping members 41 changes the size of the channel formed by the clamping members 41, allowing selective passage of the boss 111. Specifically, when the clamping member 41 is closer to the lower end of the conical slope, the channel formed by the clamping member 41 is larger, and the boss 111 can pass through the channel; when the clamping member 41 is closer to the upper end of the conical slope, the channel formed by the clamping member 41 is smaller, and the boss 111 cannot pass through the channel. The boss 111 is clamped by the clamping member 41 to fix the cover plate 2 to the base 1.

[0055] In practical use, when the cover plate is installed on the base, if the clamping member 41 is closer to the lower end of the tapered slope, the channel formed by the clamping member 41 is larger, and the boss 111 can pass through this channel (e.g., Figure 5 As shown), the cover plate is installed on the base; then, the external force applied to the clamping rod 4 is released, and under the action of the first spring 42, the clamping rod 4 moves upward, the clamping member 41 is closer to the upper end of the conical inclined surface, the protrusion distance of the clamping member 41 relative to the inner wall of the clamping rod 4 increases, and the channel formed by the clamping member 41 is smaller (as shown). Figure 8 As shown, the boss 111 cannot pass through the channel and is held by the clamping member 41 to fix the cover plate 2 to the base 1.

[0056] In this embodiment, the multifunctional bonding fixture is divided into a top cover part and a base part. The base part includes a base 1, which is used to support the chips during chip processing, serving as a worktable for existing chip processing. The top cover part includes a cover plate 2, a push rod 3, and a clamping rod 4. The top cover part is connected to the base part. By grasping and moving the top cover part, the base part with the chips can be transferred. The cover plate 2 is used to cover the chips on the base 1 to prevent the chips from slipping off the base 1 due to external factors during the transfer process. At the same time, the cover plate 2 and the base 1 are connected and fixed. The push rod 3 is located in the middle of the cover plate 2 and is connected to the cover plate 2. The push rod 3 and the clamping rod 4 are combined and connected to the base 1. Based on the interconnection of the top cover part and the base part, the push rod 3 provides a gripping area for manual handling, avoiding contact with the cover plate 2 or the base 1 during the transfer process.

[0057] The first spring 42 can be fixedly installed on the outside of the clamping rod 4, with the upper end of the first spring 42 fixed to the outer side of the clamping rod 4; or a frustum can be provided at the upper end of the clamping rod 4, and the first spring 42 can be sleeved between the frustum of the clamping rod 4 and the disc platform 32 of the push rod 3. When the clamping rod 4 moves downward relative to the push rod 3, the upper end of the first spring 42 abuts against the lower surface of the frustum, and the lower end of the first spring 42 abuts against the upper surface of the disc platform 32, achieving the same effect.

[0058] The first spring 42 is a high-stiffness spring to prevent the first spring 42 from being compressed due to the weight of the clamping rod 4 itself when no external force is received.

[0059] The upper surface of the base 1 is used to place the chip for bonding process, and the cover plate 2 is used to cover the upper surface of the base 1 after the chip bonding process is completed.

[0060] like Figure 5 As shown, in this embodiment, the bonding temperature of the chip is typically 150-170℃. The chip is directly bonded to the base 1, at which point the top cover and base are separate. After the chip bonding process is completed, the cover plate 2 is placed on top of the base 1, and the push rod 3 and clamping rod 4 are connected to the base 1. The chip is then transferred using a multi-functional bonding fixture. Figure 5 As shown, the top cover is then disassembled from the base.

[0061] When the clamping rod 4 is inserted from above the push rod 3, and the first spring 42 between the clamping rod 4 and the push rod 3 is not compressed by external force, the length of the clamping rod 4 is sufficient for the fixed column 11 to be inserted into the push rod 3 and also to be inserted into the clamping rod 4. At this time, the clamping rod 4 is located between the inner wall of the push rod 3 and the side wall of the fixed column 11.

[0062] To ensure the stability of the force between the push rod 3 and the base 1, the slot 14 is located at the center of the upper surface of the base 1, and the fixing post 11 is located at the center of the bottom of the slot 14. The internal space is a circular cylinder. When the clamping rod 4 and the push rod 3 are inserted into the slot 14, the fixing post 11 is inserted into the clamping rod 4 and the push rod 3.

[0063] Because it is necessary to fix the clamping rod 4 and the push rod 3 to the base 1 while simultaneously connecting and fixing the top cover to the base 1, maintaining the connection stability of the entire fixture and ensuring that the base 1 will not detach from other components during transfer or other external interference, the connection point between the clamping rod 4 and the push rod 3 and the base 1 is at the center of the base 1. Under normal use, the upper surface of the base 1 is equipped with a newly processed chip, therefore, it is not possible to directly and precisely disassemble and install the clamping rod 4 and the push rod 3 at the connection point with the base 1. The lower end of the clamping rod 4 is provided with a clamping member 41. The clamping member 41 can protrude relative to the inner wall or outer wall of the clamping rod 4, thereby abutting against the inner wall of the push rod 3 or the boss 111 of the fixing column 11. In this embodiment, while the fixing column 11 is inserted into the clamping rod 4, the clamping member 41 is locked at the lower end of the boss 111 of the fixing column 11 by the abutment between the inner wall of the push rod 3 and the fixing column 11, thereby completing the connection and fixation between the clamping rod 4 and the fixing column 11, and thus realizing the connection and fixation between the clamping rod 4 and the base 1.

[0064] In the current market, chips typically need to be transferred after bonding. However, the temperature of freshly processed chips is too high to be transferred directly, and the chips need to be cooled down. Furthermore, the transfer of chips requires the use of jigs to pick up and place them. The jigs used for transferring chips on the market are usually jigs with spring clips and no cover, which poses a risk of dropping the chips during handling and is inconvenient to use. In addition, jigs with spring clips that directly clamp the chips may damage them.

[0065] In this embodiment, the chip processing stage is used as the base 1. After the chip is processed on the base 1, a cover plate 2 is placed on top of the base 1 and connected to it. A clamping rod 4 and a push rod 3 are provided in the middle of the cover plate 2. The clamping rod 4 and the push rod 3 are inserted into the fixing post 11 of the base 1. By pressing the clamping rod 4 on the top of the cover plate 2, the clamping member set at the lower end of the clamping rod 4 abuts against the protrusion of the fixing post 11, thereby completing the fixation between the clamping rod 4 and the push rod 3 and the base 1. By grasping the push rod 3 or the clamping rod 4, the chip can be transferred directly after processing without waiting for the chip to cool down before operation, thus greatly shortening the entire chip bonding operation time.

[0066] like Figure 6 As shown, the base 1 is provided with a slot 14, and the fixing post is provided at the bottom of the slot 14. The slot 14 is used for the insertion of the push rod 3 and the clamping rod 4, and after insertion, they are sleeved with the fixing post.

[0067] The upper surface of the base 1 is provided with a first chip slot for preventing chips, and the lower surface of the cover plate 2 is provided with a second chip slot at a corresponding position. When the cover plate 2 covers the upper surface of the base 1, the space between the corresponding first chip slot and the second chip slot is used to accommodate the chip.

[0068] The bottom of the first chip slot is also provided with a vacuum hole, which is connected to a vacuum suction cup located at the lower end of the base 1, and is used to adsorb and fix the chip placed in the first chip slot.

[0069] The first chip slot and the second chip slot correspond to the shape and size of the processed chip in this embodiment;

[0070] like Figure 7 As shown, the cover plate 2 and the base 1 are provided with corresponding positioning holes 12 around their periphery. The corresponding positioning holes 12 are engaged by positioning pins 13 to ensure that the second chip slot on the lower surface of the cover plate 2 corresponds to the first chip slot on the upper surface of the base 1.

[0071] like Figure 2 and Figure 8 As shown, a limiting pin 31 is provided on the outer side of the thrust rod 3. When the thrust rod 3 is inserted into the through hole 21 of the cover plate 2, the limiting pin 31 is inserted into the inner wall of the through hole 21, thereby connecting the thrust rod 3 and the cover plate 2.

[0072] In this embodiment, both the base 1 and the cover plate 2 are square. The positioning holes 12 are located at the four top corners of the base 1 and the cover plate 2. The base 1 and the cover plate 2 are connected by positioning pins 13 to achieve a basic connection between the top cover part and the base part.

[0073] Although the steel ball 411 abuts against the fixed column 11 and the push rod 3, the push rod 3 and the clamping rod 4 can be fixedly connected to the base 1, but a basic connection relationship still needs to be established between the push rod 3 and the cover plate 2, so that by applying an upward force to the push rod 3, the cover plate 2 can be lifted and separated from the base 1.

[0074] In normal use, in order to facilitate applying upward pressure to the upper end of the clamping rod 4, and to make the clamping rod 4 move in the opposite direction to the push rod 3, it is necessary to set a force application point on the push rod 3. While the user presses the top of the clamping rod 4 with his palm, he can apply force to the force application point with his fingers, making the operation process more intuitive.

[0075] like Figure 8 As shown, a disc platform 32 is also provided at the upper end of the thrust rod 3;

[0076] The upper surface of the disc platform 32 is used to abut against the lower end of the first spring 42;

[0077] The lower surface of the disc platform 32 is used to provide a force-bearing position. When the upper end of the clamping rod 4 is pressed, the force-bearing position provided by the lower surface of the disc platform 32 is pressed upward, thereby causing the push rod 3 to move upward relative to the clamping rod 4.

[0078] It is worth mentioning that the top of the clamping rod 4 can also be provided with a frustum, which is convenient for users to perform pressing operations.

[0079] The outer side of the push rod 3 is also provided with a second spring 33. The upper end of the second spring 33 abuts against the lower surface of the disc platform 32, and the lower end of the second spring 33 abuts against the upper surface of the cover plate 2. The second spring 33 and the limiting pin 31 work together to ensure that the push rod 3 and the cover plate 2 are connected to each other while still having a degree of freedom of movement.

[0080] In this embodiment, the second spring 33 is a low-stiffness spring, which ensures that while the push rod 3 and the cover plate 2 are connected, they can also be displaced to a certain extent. This provides a buffer distance for the cover plate 2 while the clamping rod 4 presses down and applies upward force to the push rod 3, so that the cover plate 2 and the base 1 do not need to separate immediately.

[0081] Example 2:

[0082] Based on Embodiment 1, this invention provides a multi-functional bonding fixture when the clamping element is a steel ball 411.

[0083] like Figure 10 and Figure 11 As shown, the clamping member 41 is a steel ball 411, which is disposed in the steel ball hole 412 at the lower end of the clamping rod 4, and can move radially inward and outward in the steel ball hole 412, thereby changing the protrusion distance between the steel ball 411 and the inner and outer walls of the clamping rod 4.

[0084] The diameter of the steel ball hole 412 is smaller than the diameter of the steel ball 411. The steel ball 411 is disposed in the steel ball hole 412 from the outside of the clamping rod. The steel ball 411 is limited by the steel ball hole 412 in the radial inward direction and by the inner wall of the thrust rod in the radial outward direction. When the steel ball 411 passes through the conical inclined surface of the inner wall of the thrust rod, the protrusion distance of the steel ball 411 relative to the inner wall of the clamping rod 4 changes, thereby abutting against the boss 111 or being able to pass through the periphery of the boss 111.

[0085] It is worth mentioning that there is no connection between the steel ball 411 and the clamping rod 4, and the steel ball 411 can only be placed in the steel ball hole 412 from the outside of the clamping rod 4. This is because the clamping rod 4 and the push rod 3 are bound together, and the clamping rod 4 is always sleeved inside the push rod 3. The steel ball 411 is abutted by the inner wall of the push rod 3 and will not fall out. If the steel ball 411 is placed in the steel ball hole 412 from the inside of the clamping rod 4, when the clamping rod 4 is separated from the fixing post 11, the steel ball 411 will not be abutted by the fixing post 11 inside the clamping rod 4, and the steel ball 411 will come out of the steel ball hole 412.

[0086] The diameter of the steel ball 411 is greater than the distance between the outer wall of the clamping rod 4 and the inner wall of the upper half of the push rod 3 when the clamping rod 4 is inserted into the push rod 3. When the clamping rod 4 is inserted from the upper end of the push rod 3, the steel ball 411 is abutted by the inner wall of the upper half of the push rod 3, and the steel ball 411 is pushed in from the outside to the inside by the inner wall of the push rod 3.

[0087] The diameter of the boss 111 at the upper end of the fixed column 11 needs to ensure that when all the steel balls 411 are pushed out from the inside, the boss 111 of the fixed column 11 can enter the clamping rod 4 through the steel balls 411.

[0088] The inclined surface of the inner wall of the thrust rod 3 is located on the inner wall of the thrust rod 3 around the fixed column 11 when the cover plate 2 is placed on top of the base 1. The inner diameter of the thrust rod 3 gradually increases from top to bottom on the inclined surface. When the clamping rod 4 moves inside the thrust rod 3 and the steel ball 411 passes through the inclined surface from top to bottom, the degree of contact between the inclined surface and the steel ball 411 gradually decreases until it is not there. Therefore, when the boss 111 of the fixed column 11 is located in the upper half of the inclined surface or in a non-inclined position, the steel ball 411 cannot pass between the boss 111 and the inner wall of the thrust rod 3.

[0089] Press the top of the clamping rod 4 to ensure that the steel ball 411 is located at the position where the thickness of the push rod 3 is smaller. At the same time, insert the fixing post 11 into the clamping rod 4, and make the boss 111 higher than the position of the steel ball 411. Release the top of the clamping rod 4. Due to the elastic restoring force of the first spring 42, the push rod 3 moves downward relative to the clamping rod 4, and the steel ball 411 is stuck between the bottom of the boss 111 and the inner wall of the push rod 3, thereby completing the fixation between the clamping rod 4, the push rod 3, the cover plate 2 and the base 1.

[0090] By pressing the upper end of the clamping rod 4, the clamping rod 4 moves relative to the push rod 3, pushing the steel ball 411 at the lower end of the clamping rod 4 to the lower half of the inclined surface of the inner wall of the push rod 3. This is sufficient for the steel ball 411 to move the maximum distance radially outward. In this state, the boss 111 of the fixing column 11 can pass through the steel ball 411 part of the clamping rod 4 and enter the interior of the clamping rod 4. At this time, the steel ball 411 is still in a state of being pushed up from the inside. When the pressure applied to the top of the clamping rod 4 is removed, the clamping rod 4 and the push rod 3 move in the up and down directions respectively due to the elastic restoring force of the first spring 42. The cover plate 2 covers the base 1. The steel ball 411 moves upward relative to the push rod 3, and the inclined surface part inside the push rod 3 moves downward relative to the steel ball 411. Finally, because the steel ball 411 is in a radially protruding state, it is abutted by the inclined surface and stuck between the bottom of the boss 111 and the inner wall of the push rod 3.

[0091] Example 3:

[0092] Based on Embodiment 1, this invention provides a multi-functional bonding fixture when the clamping member is a cantilever arm.

[0093] like Figure 12 and Figure 13As shown, the cantilever arm is disposed at the lower end of the clamping rod 4, and an abutment platform 4111 is disposed on the outer side of the cantilever arm 413. The abutment platform 4111 is used to abut against the inner wall of the thrust rod 3. The free end of the lower end of the cantilever arm 413 can move radially inward and outward, thereby changing the protrusion distance between the cantilever arm 413 and the inner and outer walls of the clamping rod 4. When the cantilever arm 413 passes through the conical inclined surface of the inner wall of the thrust rod, the protrusion distance of the free end relative to the inner wall of the clamping rod 4 changes. The free end abuts against the boss 111 or can pass through the periphery of the boss 111.

[0094] In this embodiment, the cantilever arm 413 is axially or elastically connected to the lower end of the clamping rod 4. For example, the cantilever arm 413 and the clamping rod 4 are connected by a torsion spring. In the absence of external force, the cantilever arm 413 and the clamping rod 4 are on the same axis. When the cantilever arm 413 receives an external force, it rotates relative to the clamping rod 4 to change the distance between the different cantilever arms 413. In this embodiment, a torsion spring is provided at the axial connection between the cantilever arm 413 and the clamping rod 4. When the cantilever arm 413 protrudes relative to the inner or outer wall of the clamping rod 4, the torsion spring provides a restoring force to the cantilever arm 413, causing it to return to the intermediate position. When the abutment platform 4111 on the outer side of the cantilever arm 413 abuts against the upper inner wall of the thrust rod 3... The free end of the lower end of the cantilever arm 413 protrudes inward. When the abutment platform 4111 on the outer side of the cantilever arm 413 moves to the tapered inclined surface at the lower end of the push rod 3, the free end is no longer abutted by the inner wall of the push rod 3 and springs back to the middle position, so that there is enough space in the middle of the clamping rod 4 for the protrusion 111 of the fixing column 11 to pass through. After the fixing column 11 is inserted into the clamping rod 4, the clamping rod 4 moves upward inside the push rod 3, and the cantilever arm 413 passes through the tapered inclined surface of the inner wall of the push rod 3. The abutment platform 4111 on the outer side of the cantilever arm 413 is abutted by the inner wall of the push rod 3. The protrusion of the free end relative to the inner wall of the clamping rod 4 makes the free end of the lower end of the cantilever arm 413 abut against the protrusion 111, thus completing the fixation between the clamping rod 4 and the fixing column 11.

[0095] Example 4:

[0096] Based on Embodiment 1, this invention provides a method for using a multi-functional bonding fixture, wherein:

[0097] A downward force is applied to the clamping rod 4, and the conical inclined surface of the push rod 3 increases the protrusion distance of the clamping member 41 relative to the inner wall of the clamping rod 4, so that the fixing post 11 passes through the channel formed by the clamping member 41;

[0098] When the force applied to the clamping rod 4 is removed, the clamping rod 4 moves upward relative to the push rod 3 due to the elastic restoring force of the first spring 42. Under the action of the tapered inclined surface of the push rod 3, the protrusion distance of the clamping member 41 relative to the inner wall of the clamping rod 4 is reduced, thereby restricting the fixing post 11 from passing through the channel formed by the clamping member 41. The clamping member 41 abuts against the boss 111 of the fixing post 11, thereby fixing the cover plate 2 to the base 1.

[0099] The chip is placed in the chip slot above the base 1 and the chip processing is completed;

[0100] A downward force is applied to the top of the clamping rod 4, while an upward force is applied to the lower surface of the disc platform 32 at the upper end of the push rod 3. The bottom of the clamping rod 4 is aligned with the fixing post 11 in the base 1, and the fixing post 11 is inserted into the clamping rod 4 from the bottom, ensuring that the boss 111 at the upper end of the fixing post 11 reaches the position above the clamping member 41 in the clamping rod 4.

[0101] When the downward force applied to the top of the clamping rod 4 and the upward force applied to the lower surface of the disc platform 32 at the upper end of the push rod 3 are removed, the cover plate 2 and the push rod 3 move downward relative to the clamping rod 4 due to the elastic restoring force of the first spring 42, covering the base 1 with the cover plate 2. At the same time, the tapered inclined surface at the lower end of the push rod 3 abuts against the clamping member 41, and the clamping rod 4 moves upward relative to the push rod 3 due to the elastic restoring force of the first spring 42. The clamping member 41 abuts against the lower end of the boss 111 of the fixing column 11.

[0102] The base 1 and the cover plate 2 are positioned through the positioning hole 12 and engaged by the positioning pin 13 to connect and fix the base 1 and the cover plate 2, while simultaneously fixing the clamping rod 4 and the push rod 3 to the base 1.

[0103] While the processed chip is placed on the cover plate 2 and the base 1, the multi-functional bonding fixture is transferred by grasping the disc stage 32 at the upper end of the push rod 3, thereby realizing the transfer of the processed chip.

[0104] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-functional bonding fixture, characterized in that, The utility model relates to a chip clamping device, including: Base (1), cover plate (2), push rod (3) and clamping rod (4), wherein: The base (1) is provided with fixed column (11), the fixed column (11) upper end is provided with boss (111), the cover plate (2) is provided with through -hole (21), the push rod (3) passes through the through -hole (21), and is connected with the cover plate (2), the push rod (3) inner wall lower end is provided with conical inclined plane, the clamping rod (4) is provided with clamping piece (41) on it; The clamping rod (4) and the push rod (3) are hollow, part clamping rod (4) is set in the push rod (3) inside, the clamping rod (4) between the push rod (3) outside is provided with first spring (42), the clamping piece (41) is changed in the abutment of conical inclined plane and the protruding distance of relative clamping rod (4) inner wall changes; Wherein, in the process that the clamping rod (4) compresses the first spring (42) and moves downward, the protruding distance of the clamping piece (41) relative to the inner wall of the clamping rod (4) decreases, so as to pass through the boss (111); After the external force applied on the clamping rod (4) is released, the clamping rod (4) is driven to move upward under the action of the first spring (42), the protruding distance of the clamping piece (41) relative to the inner wall of the clamping rod (4) increases, and abuts against the boss (111); The upper surface of the base (1) is provided with a first chip slot for placing a chip, and the lower surface of the cover plate (2) is provided with a second chip slot at a corresponding position. When the cover plate (2) is placed on the upper surface of the base (1), the space between the first chip slot and the second chip slot corresponding to each other is used to accommodate the chip.

2. The multifunctional bonding clamp according to claim 1, wherein The base (1) is provided with a hole slot (14), and the fixed column (11) is arranged at the bottom of the hole slot (14). The hole slot (14) is used for inserting the push rod (3) and the clamping rod (4).

3. The multifunctional bonding clamp according to claim 1, wherein The clamping piece (41) is a steel ball (411), which is arranged in a steel ball hole (412) at the lower end of the clamping rod (4) and can move radially in the steel ball hole (412), so that the protruding distance of the steel ball (411) from the inner wall of the clamping rod (4) changes.

4. The multifunctional bonding clamp according to claim 3, wherein The diameter of the steel ball hole (412) is smaller than the diameter of the steel ball (411). The steel ball (411) is arranged in the steel ball hole (412) from the outside of the clamping rod (4). The steel ball (411) is limited in the radial inward direction by the steel ball hole (412), and the steel ball (411) is limited in the radial outward direction by the inner wall of the push rod (3). When the steel ball (411) passes through the conical inclined surface of the push rod (3), the protruding distance of the steel ball (411) from the inner wall of the clamping rod (4) changes, so as to abut against the boss (111) or be able to pass through the periphery of the boss (111).

5. The multifunctional bonding clamp according to claim 1, wherein The clamping piece (41) is a cantilever beam (413) arranged at the lower end of the clamping rod (4), and the outer side of the cantilever beam (413) is provided with an abutting table (4111) for abutting with the inner wall of the thrust rod (3), and the free end of the lower end of the cantilever beam (413) can move radially, so as to change the protruding distance of the cantilever beam (413) from the inner wall of the clamping rod (4); When the cantilever beam (413) passes through the tapered slope of the thrust rod (3), the protruding distance of the free end from the inner wall of the clamping rod (4) changes, so as to abut against the boss (111) or be able to pass through the periphery of the boss (111).

6. The multifunctional bonding clamp according to claim 5, wherein The cover plate (2) and the base (1) are provided with corresponding positioning holes (12) at the corresponding positions of the periphery, the corresponding positioning holes (12) are matched by a positioning pin (13), and the second chip groove on the lower surface of the cover plate (2) and the first chip groove on the upper surface of the base (1) are corresponded.

7. The multifunctional bonding clamp according to claim 1, wherein The thrust rod (3) passes through the through hole (21) and is connected with the cover plate (2), and specifically comprises: The outer side of the thrust rod (3) is provided with a limiting pin (31), and after the thrust rod (3) is inserted into the through hole (21) of the cover plate (2), the limiting pin (31) is inserted into the inner side wall of the through hole (21), so as to relatively connect the thrust rod (3) and the cover plate (2).

8. The multifunctional bonding clamp according to claim 7, wherein The outer side of the thrust rod (3) is also provided with a second spring (33), the upper end of the thrust rod (3) is provided with a disc table (32), the upper end of the second spring (33) abuts against the lower surface of the disc table (32), the lower end of the second spring (33) abuts against the upper surface of the cover plate (2), and the second spring (33) and the limiting pin (31) jointly ensure that the thrust rod (3) and the cover plate (2) are relatively connected while still having a degree of freedom.

9. A method of using a multi-functional bonding clamp, comprising: Use the multifunctional bonding clamp according to any one of claims 1-8, wherein: A downward force is applied to the clamping rod (4), the protruding distance of the clamping piece (41) from the inner wall of the clamping rod (4) is increased by the tapered slope of the thrust rod (3), so that the fixed column (11) passes through the channel formed by the clamping piece (41); The force applied to the clamping rod (4) is removed, the clamping rod (4) moves upward relative to the thrust rod (3) due to the elastic restoring force of the first spring (42), and under the action of the tapered slope of the thrust rod (3), the protruding distance of the clamping piece (41) from the inner wall of the clamping rod (4) is reduced, so as to limit the fixed column (11) to pass through the channel formed by the clamping piece (41), and the clamping piece (41) abuts against the boss (111) of the fixed column (11), so as to fix the cover plate (2) on the base (1).

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