Chip processing clamping tool

Abstract

This application discloses a clamping fixture for chip processing, relating to the field of chip processing auxiliary devices. The clamping fixture includes: a worktable with support pillars for supporting a packaging substrate, and positioning pillars on both sides of the support pillars; each positioning pillar has a pressure rod, the first end of which is rotatably connected to the positioning pillar, and the second end of which abuts against the upper surface of the packaging substrate; a movable block located between the positioning pillars and the support pillars on the worktable, the movable block abutting against the sidewall of the packaging substrate; a limiting block on the pressure rod, the limiting block forming a limiting structure with the movable block; and a driving assembly on the worktable for driving the two positioning pillars to move, such that when the two movable blocks move in a direction approaching the support pillars, the distance between the two movable blocks and the axis of the support pillars remains equal.

Description

Technical Field

[0001] This application relates to the field of chip processing auxiliary devices, and in particular to a clamping fixture for chip processing. Background Technology

[0002] In chip manufacturing processes, such as manual chip processing or chip packaging, taking packaging as an example, the chip needs to be attached to a packaging substrate. During this process, the packaging substrate needs to be clamped and secured. In existing technologies, the packaging substrate is typically clamped using a fixed-size clamping fixture. When clamping the packaging substrate, manual alignment is usually required to improve the accuracy of attaching the chip. This method demands a high level of visual acuity and experience from the operator, resulting in significant error fluctuations. Utility Model Content

[0003] The main objective of this application is to provide a clamping fixture for chip processing, which aims to solve the technical problem in the prior art that different types of clamping fixtures are required for different sizes and models of packaging substrates, and that changing the clamping fixture is inconvenient.

[0004] To achieve the above objectives, this application provides a clamping fixture for chip processing, comprising:

[0005] A workbench is provided with support columns for supporting the packaging substrate, and positioning columns are provided on both sides of the support columns on the workbench.

[0006] The positioning post is provided with a pressure rod, the first end of the pressure rod is rotatably connected to the positioning post, and the second end of the pressure rod can abut against the upper surface of the packaging substrate.

[0007] The worktable is provided with a movable block located between the positioning post and the support post, and the movable block can abut against the side wall of the packaging substrate;

[0008] The pressure rod is provided with a limiting block, which can form a limiting structure with the moving block;

[0009] The workbench is also equipped with a drive assembly, which is used to drive the two positioning columns to move so that when the two moving blocks move in a direction close to the support column, the distance between the two moving blocks and the axis of the support column is always equal.

[0010] Optionally, a placement groove is provided on one side of the two positioning posts facing each other, and a rotatable shaft is provided in the placement groove. The first end of the pressure rod is connected to the shaft, and the second end of the pressure rod is a free end that can rotate around the axis of the shaft. A pad is provided at the second end of the pressure rod, and the pad is used to abut against the upper surface of the packaging substrate.

[0011] Optionally, a servo motor is provided on the outer wall of the positioning column, and the output shaft of the servo motor is connected to the rotating shaft.

[0012] Optionally, when the pad abuts against the packaging substrate, there is a gap between the upper end of the moving block and the pressure rod.

[0013] Optionally, the worktable is provided with slide rails located on both sides of the support column, the movable block is disposed on the slide rail and can move along its extension direction, and a return spring is provided between the movable block and the support column.

[0014] Optionally, the side wall of the slide rail is provided with a slide groove, the slide groove extending in the same direction as the slide rail, and the moving block is provided with a slider located in the slide groove, the slider being able to move along the extension direction of the slide groove.

[0015] Optionally, the slide rail is provided with a locking hole at one end near the support column, the lower end of the moving block is provided with a locking groove, a locking rod is provided in the locking groove, a locking spring is provided between one end of the locking rod located in the locking groove and the inner wall of the locking groove, and the end of the locking rod located outside the locking groove can enter the locking hole to form a limiting structure.

[0016] Optionally, the slide rail is provided with an unlocking hole at one end away from the support column, and an unlocking rod is provided in the unlocking hole. The slide rail is provided with a communicating groove connecting the locking hole and the unlocking hole, and a lever is provided in the communicating groove. The first end of the lever is located in the unlocking hole, and the second end of the lever is located in the locking hole. A guide block is also provided in the locking hole. The unlocking rod applies an opposing thrust to the first end of the lever, driving the second end of the lever to move upward, so that the guide block pushes the locking rod out of the locking hole.

[0017] Optionally, the unlocking rod has a first inclined surface on the side close to the support column, and the positioning column has a second inclined surface on the side away from the support column. The second inclined surface is used to abut against the first inclined surface to drive the unlocking rod to move in a downward direction.

[0018] Optionally, the drive assembly includes a drive motor, a first rack, a second rack, and a drive wheel. The drive motor is mounted on the worktable, and the drive wheel is sleeved on the output shaft of the drive motor. The first rack is connected to one of the positioning pins, and the second rack is connected to the other positioning pin. The first rack and the second rack are located on both sides of the drive motor and simultaneously mesh with the drive wheel.

[0019] The beneficial effects that this application can achieve are:

[0020] This application discloses a chip processing clamping fixture. A support column is provided on the worktable to support the packaging substrate. When the packaging substrate is placed on the support column, it may be offset. A driving component drives two positioning columns to move synchronously towards the support column. The second end of a pressure rod can rotate around its first end. During the lateral movement of the positioning columns, the pressure rod is tilted, and a limiting block on the pressure rod abuts against a moving block to form a limiting structure, pushing the moving block to move towards the support column. The two moving blocks cooperate to push the packaging substrate, achieving automatic centering. After centering, the pressure rod rotates, and its second end abuts against the packaging substrate, cooperating with the support column to automatically clamp the packaging substrate. When the packaging substrate needs to be removed, the above operation is reversed, making installation and disassembly convenient. Attached Figure Description

[0021] Figure 1 This is a cross-sectional structural diagram of the clamping tool according to an embodiment of this application;

[0022] Figure 2 for Figure 1 Enlarged structural diagram at point A;

[0023] Figure 3 This is another structural schematic diagram of the clamping tool according to an embodiment of this application.

[0024] The numbers on the map are:

[0025] 10-Workbench, 11-Support column, 20-Encapsulation substrate, 30-Positioning column, 31-Placement slot, 40-Pressure rod, 41-Rotating shaft, 42-Limiting block, 43-Padded block, 50-Moving block, 51-Locking groove, 52-Locking spring, 53-Locking rod, 54-Locking hole, 55-Guide block, 60-Slide rail, 61-Unlocking hole, 62-Unlocking rod, 63-First inclined plane, 64-Second inclined plane, 65-Slide groove, 70-Lever, 71-Connecting groove, 80-Drive motor, 81-First rack, 82-Second rack, 83-Drive wheel, 90-Reset spring.

[0026] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0031] Example 1

[0032] Reference Figures 1-3The first embodiment of this application provides a clamping fixture for chip processing, including: a worktable 10, on which a support column 11 for supporting a packaging substrate 20 is disposed, and positioning columns 30 located on both sides of the support column 11 are disposed on the worktable 10; wherein, a pressure rod 40 is disposed on the positioning column 30, the first end of the pressure rod 40 is rotatably connected to the positioning column 30, and the second end of the pressure rod 40 can abut against the upper end surface of the packaging substrate 20; a moving block 50 is disposed on the worktable 10 between the positioning column 30 and the support column 11, and the moving block 50 can abut against the side wall of the packaging substrate 20; a limiting block 42 is disposed on the pressure rod 40, and the limiting block 42 can form a limiting structure with the moving block 50; a driving assembly is also disposed on the worktable 10, the driving assembly is used to drive the two positioning columns 30 to move, so that when the two moving blocks 50 move in a direction close to the support column 11, the distance between the two moving blocks 50 and the axis of the support column 11 is always equal.

[0033] In this embodiment, during chip processing, the chip needs to be attached to the packaging substrate 20 first. During this process, the packaging substrate typically needs to be fixed in place, usually at a target position on the support pillar 11, which is typically the centerline of the support pillar 11. The area of ​​the plane supporting the packaging substrate 20 on the support pillar 11 is smaller than the area of ​​the packaging substrate 20, meaning the edge of the packaging substrate 20 protrudes beyond the periphery of the support pillar 11. Positioning pillars 30 are symmetrically arranged on the left and right sides of the support pillar 11, and these positioning pillars 30 can move towards or away from each other. In the initial state, the pressure rod 40 is in a vertical state. As the positioning posts 30 move closer to each other, the pressure rod 40 on the left rotates to the right by a certain angle, and the pressure rod 40 on the right rotates to the left by a certain angle. The pressure rods 40 on the two positioning posts 30 are in an inclined state. As the positioning posts 30 move closer to each other, the limiting block 42 on the positioning post 30 abuts against the moving block 50 and forms a limiting structure. The moving block 50 moves synchronously with the positioning post 30 in the direction closer to the support post 11.

[0034] The movable blocks 50 located on the left and right sides of the support column 11 move synchronously in the direction close to the support column 11. If the encapsulation substrate 20 shifts left or right, the two movable blocks 50 can automatically adjust the encapsulation substrate. During the movement, the distance between the two movable blocks 50 and the axis of the support column 11 remains equal. This ensures that when both movable blocks 50 have moved to contact the encapsulation substrate 20 and can no longer move, the distance between the two movable blocks 50 and the axis of the support column 11 is equal, thus ensuring that the encapsulation substrate 20 is located on the centerline of the support column 11, achieving automatic centering.

[0035] After the packaging substrate 20 is automatically centered by the moving block 50, the pressure rods 40 on both sides of the support column 11 continue to rotate inward. The packaging substrate 20 abuts against the end of the pressure rod 40, and the pressure rod 40 and the support column 11 cooperate to clamp the packaging substrate 20 in the vertical direction.

[0036] Example 2

[0037] As an optional implementation, this embodiment provides a specific structure for rotating the pressure rod 40, including: a placement groove 31 is provided on one side of the two positioning posts 30 facing each other, a rotatable rotating shaft 41 is provided in the placement groove 31, the first end of the pressure rod 40 is connected to the rotating shaft 41, the second end of the pressure rod 40 is a free end and can rotate around the axis of the rotating shaft 41, and a pad 43 is provided at the second end of the pressure rod 40, the pad 43 is used to abut against the upper surface of the encapsulation substrate 20.

[0038] Optionally, a servo motor (not shown in the figure) is provided on the outer wall of the positioning column 30, and the output shaft of the servo motor is connected to the rotating shaft 41.

[0039] Optionally, when the pad 43 abuts against the encapsulation substrate 20, there is a gap between the upper end of the moving block 50 and the pressure rod 40.

[0040] In this embodiment, the upper end of the placement groove 31 extends through the upper end of the positioning post 30, and the placement groove 31 also extends through the opposing sidewalls of the two positioning posts 30, allowing the pressure rod 40 to rotate to a vertical position. This prevents the pressure rod 40 from interfering with the normal placement of the encapsulation substrate 20. When the pressure rod 40 is in a horizontal position, it can effectively press the encapsulation. A pad 43 is provided at the second end of the pressure rod 40. The pad 43 is made of a flexible material such as rubber, allowing the pressure rod 40 to flexibly press the encapsulation substrate 20, preventing damage. A servo motor is provided to power the rotation of the pressure rod 40. It should be noted that the pressing action of the pressure rod 40 on the encapsulation substrate 20 can rely on the weight of the pressure rod 40 itself or on the rotational driving force of the servo motor. By limiting the positional relationship between the moving block 50 and the pressure rod 40, it is ensured that when the pressure rod 40 is pressing against the packaging substrate 20, the moving block 50 will not interfere with the downward rotation of the pressure rod 40, thus ensuring that the pressure rod 40 rotates smoothly downward and presses against the packaging substrate 20. It should be noted that the two servo motors work synchronously to ensure that the positions of the two pressure rods 40 are symmetrical, further ensuring that when the limiting blocks 42 on the two pressure rods 40 drive the moving block 50 to move, the distance between the two moving blocks 50 and the axis of the support column 11 is equal.

[0041] Example 3

[0042] As an optional implementation, this embodiment provides a slide rail 60 structure, including: a slide rail 60 located on both sides of a support column 11 is provided on the worktable 10, a moving block 50 is provided on the slide rail 60 and can move along its extension direction, and a return spring 90 is provided between the moving block 50 and the support column 11.

[0043] Specifically, the slide rails 60 limit and guide the movement of the moving block 50 and the positioning post 30. The slide rails 60 located on the left and right sides of the support post 11 extend in the same direction. The cross-sectional shape of the slide rail 60 can be dovetail-shaped, and the lower ends of the moving block 50 and the positioning post 30 can be set as dovetail grooves adapted to the slide rail 60. By setting a reset spring 90, when the chip processing is completed and the packaging substrate 20 needs to be removed, the moving block 50 can automatically reset to its initial state after losing external force, so as to facilitate the clamping of the next package.

[0044] Optionally, the side wall of the slide rail 60 is provided with a slide groove 65, the slide groove 65 extends in the same direction as the slide rail 60, and the moving block 50 is provided with a slider located in the slide groove 65, the slider can move along the extension direction of the slide groove 65.

[0045] Specifically, both sides of the slide groove 65 can be provided with slide groove 65, and both the side walls of the moving block 50 and the positioning post 30 can be provided with sliders. The surface of the slider that contacts the slide groove 65 can be set as an arc surface. This allows the sliders to limit the movement of the moving block 50 and the positioning post 30 as they move along the slide rail 60, preventing them from disengaging from the slide rail 60.

[0046] Optionally, the slide rail 60 is provided with a locking hole 54 at one end near the support column 11, and the lower end of the moving block 50 is provided with a locking groove 51. A locking rod 53 is provided in the locking groove 51. A locking spring 52 is provided between one end of the locking rod 53 located in the locking groove 51 and the inner wall of the locking groove 51. The end of the locking rod 53 located outside the locking groove 51 can enter the locking hole 54 to form a limiting structure.

[0047] Specifically, by setting the locking hole 54, when the moving block 50 moves along the direction of the support column 11, the locking spring 52 is in a compressed state, and the lower end of the locking rod 53 is an arc-shaped surface, moving along the upper end surface of the slide rail 60. When the moving block 50 moves to the position of the locking hole 54, the locking rod 53 automatically enters the locking hole 54 under the action of the locking spring 52, forming a limiting structure with the locking rod 53 and the locking hole 54, which fixes the moving block 50 and prevents the locking rod 53 from moving left and right at will. At this time, the moving blocks 50 on both sides can clamp and fix the side wall of the packaging substrate 20. If the moving block 50 is not fixed at this time, since the pressure rod 40 needs to rotate to the right, the limiting block 42 may disengage from the moving block 50, and the moving block 50 loses the thrust of the limiting block 42. During the process of the pressure rod 40 pressing the packaging substrate 20, the moving block 50 may move backward and the packaging substrate 20 may shift.

[0048] Optionally, the slide rail 60 is provided with an unlocking hole 61 at the end away from the support column 11. An unlocking rod 62 is provided in the unlocking hole 61. The slide rail 60 is provided with a connecting groove 71 that connects the locking hole 54 and the unlocking hole 61. A lever 70 is provided in the connecting groove 71. The first end of the lever 70 is located in the unlocking hole 61, and the second end of the lever 70 is located in the locking hole 54. A guide block 55 is also provided in the locking hole 54. The unlocking rod 62 applies a pushing force to the first end of the lever 70, driving the second end of the lever 70 to move upward, so that the guide block 55 pushes the locking rod 53 out of the locking hole 54.

[0049] Specifically, lever 70 is provided, with one end of lever 70 rotatably mounted in communicating groove 71 via a pin near the unlocking hole 61. When it is necessary to engage the locked state of moving block 50, downward pressure is applied to unlocking rod 62, causing the left end of lever 70 to move downward and the right end of lever 70 to move upward. The right end of lever 70 pushes guide block 55 upward, and guide block 55 pushes locking rod 53 upward. When locking rod 53 is completely withdrawn from locking hole 54, moving block 50 can automatically move away from support post 11 under the action of return spring 90.

[0050] Optionally, the unlocking rod 62 is provided with a first inclined surface 63 on the side close to the support column 11, and the positioning column 30 is provided with a second inclined surface 64 on the side away from the support column 11. The second inclined surface 64 is used to abut against the first inclined surface 63 to drive the unlocking rod 62 to move in a downward direction.

[0051] Specifically, by setting a first inclined surface 63 at the upper end of the unlocking rod 62 and a second inclined surface 64 on the positioning post 30, the unlocking rod 62 is guided to move downward when the second inclined surface 64 on the positioning post 30 contacts the first inclined surface 63, so that the locking rod 53 can automatically exit from the locking hole 54.

[0052] Example 4

[0053] As an optional implementation, this embodiment provides a specific structure of a drive assembly, including: the drive assembly includes a drive motor 80, a first rack 81, a second rack 82, and a drive wheel 83. The drive motor 80 is disposed on the worktable 10, the drive wheel 83 is sleeved on the output shaft of the drive motor 80, the first rack 81 is connected to one of the positioning pins 30, the second rack 82 is connected to the other positioning pin 30, and the first rack 81 and the second rack 82 are respectively located on both sides of the drive motor 80 and simultaneously mesh with the drive wheel 83.

[0054] In this embodiment, the positioning columns 30 located on both sides of the support column 11 are moved synchronously in directions that are closer to or further away from each other by driving the motor 80, the first rack 81, and the second rack 82. It should be noted that a guide limiting structure (not shown in the figure) can also be provided on the side wall of the worktable 10 to support the first rack 81 and the second rack 82 and to ensure that the first rack 81 and the second rack 82 can only move laterally.

[0055] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A clamping fixture for chip processing, characterized in that, include: A workbench is provided with support columns for supporting the packaging substrate, and positioning columns are provided on both sides of the support columns on the workbench. The positioning post is provided with a pressure rod, the first end of the pressure rod is rotatably connected to the positioning post, and the second end of the pressure rod can abut against the upper surface of the packaging substrate. The worktable is provided with a movable block located between the positioning post and the support post, and the movable block can abut against the side wall of the packaging substrate; The pressure rod is provided with a limiting block, which can form a limiting structure with the moving block; The workbench is also provided with a drive assembly, which is used to drive the two positioning columns to move so that when the two moving blocks move in a direction close to the support column, the distance between the two moving blocks and the axis of the support column is always equal. The workbench is provided with slide rails located on both sides of the support column, the movable block is disposed on the slide rail and can move along its extension direction, and a return spring is provided between the movable block and the support column; The slide rail has a locking hole at one end near the support column, the lower end of the moving block has a locking groove, a locking rod is provided in the locking groove, a locking spring is provided between one end of the locking rod in the locking groove and the inner wall of the locking groove, and the other end of the locking rod outside the locking groove can enter the locking hole to form a limiting structure.

2. The clamping jig for chip processing according to Claim 1, wherein A placement groove is provided on one side of the two positioning posts facing each other. A rotatable shaft is provided in the placement groove. The first end of the pressure rod is connected to the shaft. The second end of the pressure rod is a free end and can rotate around the axis of the shaft. A pad is provided at the second end of the pressure rod. The pad is used to abut against the upper surface of the packaging substrate.

3. The clamping jig for chip processing according to Claim 2, wherein A servo motor is provided on the outer wall of the positioning column, and the output shaft of the servo motor is connected to the rotating shaft.

4. The chip processing clamping fixture as described in claim 2, characterized in that, When the pad abuts against the packaging substrate, there is a gap between the upper end of the moving block and the pressure rod.

5. The clamping jig for chip processing according to Claim 1, wherein The slide rail has a groove on its side wall, the groove extending in the same direction as the slide rail. The moving block has a slider located in the groove, the slider being able to move along the extension direction of the groove.

6. The clamping jig for chip processing according to Claim 1, wherein The slide rail has an unlocking hole at one end away from the support column. An unlocking rod is installed in the unlocking hole. The slide rail has a connecting groove that connects the locking hole and the unlocking hole. A lever is installed in the connecting groove. The first end of the lever is located in the unlocking hole, and the second end of the lever is located in the locking hole. A guide block is also installed in the locking hole. The unlocking rod applies an opposing thrust to the first end of the lever, driving the second end of the lever to move upward, so that the guide block pushes the locking rod out of the locking hole.

7. The clamping jig for processing a chip according to Claim 6, wherein The unlocking rod has a first inclined surface on the side close to the support column, and the positioning column has a second inclined surface on the side away from the support column. The second inclined surface is used to abut against the first inclined surface to drive the unlocking rod to move in a downward direction.

8. The clamping jig for processing a chip according to Claim 1, wherein The driving assembly comprises a driving motor, a first gear rack, a second gear rack and a driving wheel, the driving motor is arranged on the workbench, the driving wheel is sleeved on the output shaft of the driving motor, the first gear rack is connected with one positioning column, the second gear rack is connected with the other positioning column, and the first gear rack and the second gear rack are located on the two sides of the driving motor and are in meshing with the driving wheel at the same time.

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