Integrated multi-point clamping jaw for plastic packaging of chip
The integrated multi-point clamp for chip packaging addresses weight and reliability issues by using an integrated cylinder seat and pneumatic clamps with steel balls and torsion springs, ensuring stable and efficient clamping operations.
Patent Information
- Application Number
- CN202323646665.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-29
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2033-12-29
AI Technical Summary
Existing chip encapsulation grippers require numerous cylinders and complex wiring, leading to increased weight, reliability issues, and high failure rates due to jamming during clamping operations.
An integrated multi-point clamp with an integrated cylinder seat, piston holes, piston rods, steel balls, and pneumatic clamps, featuring an integrated flow channel and torsion springs, allowing smooth clamping operations and reducing weight and complexity.
The design ensures stable and reliable clamping with reduced weight and simplified wiring, minimizing jamming and enhancing the appearance of the gripper while maintaining consistent chip positioning.
Smart Images
Figure CN222214155U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of chip plastic packaging, in particular to an integrated multi-point clamping claw for chip plastic packaging. Background Art
[0002] Chips are small silicon wafers containing integrated circuits, which are often part of computers or other electronic devices. During chip processing, they are plasticized by a plastic packaging machine. The chip plastic packaging machine is usually equipped with a clamping claw, which mainly puts the mold into the position where the chip is placed on the substrate, and then places the chip through the grabbing component, which facilitates the plastic packaging operation.
[0003] The multi-point grippers used in existing chip encapsulation operations usually require too many cylinders and complex wiring and air supply, which makes the grippers too heavy and affects reliability and appearance. At the same time, the grippers often get stuck during the clamping operation, resulting in a high failure rate. Utility Model Content
[0004] The utility model aims to provide an integrated multi-point clamp for chip plastic packaging to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an integrated multi-point clamp for chip plastic sealing, comprising an integrated cylinder seat and a fixed plate, and the integrated cylinder seat is fixedly installed on the upper end of the fixed plate, a plurality of piston holes are opened at the bottom of the integrated cylinder seat, and a piston rod is slidably sleeved inside each of the piston holes, a steel ball is rollingly arranged at the bottom end of the piston rod, a pneumatic clamp is installed at the bottom end of the steel ball, and the pneumatic clamp is installed on the fixed plate.
[0006] As a further improvement to the above solution, an integrated flow channel is provided inside the integrated cylinder seat, and a plurality of the piston holes are connected to the integrated flow channel.
[0007] As a further improvement to the above scheme, the pneumatic clamp includes a positioning pin, a torsion spring and a clamp body. The positioning pin is fixedly installed inside the fixed plate, and the clamp body is rotatably installed on the outer wall of the positioning pin, and the torsion spring is also sleeved on the outer wall of the positioning pin.
[0008] As a further improvement to the above scheme, a pin hole is provided inside the clamp body to cooperate with the positioning pin, and the power arm of the clamp body is in contact with the steel ball, and the end of the resistance arm of the clamp body is bent upward to form a claw hook.
[0009] As a further improvement to the above scheme, the upper surface of the fixing plate is provided with a plurality of installation grooves which are arranged to cooperate with the clamp body, and positioning grooves are integrally provided on both sides of each installation groove, and the positioning pins are fixedly installed inside the left and right positioning grooves.
[0010] As a further improvement to the above scheme, the four corners of the fixing plate are chamfered, and a plurality of first grooves and second grooves are provided on the lower surface of the fixing plate, and the first grooves and the second grooves are both connected to the mounting grooves, the first grooves provide space for the free rotation of the resistance arm of the clamp body, and the second grooves provide space for the free rotation of the power arm of the clamp body.
[0011] As a further improvement to the above solution, a sealing ring is fixed to the outer wall of the piston rod, and the sealing ring is used to seal the gap between the outer wall of the piston rod and the inner wall of the piston hole.
[0012] As a further improvement to the above solution, the front and rear side walls of the integrated cylinder seat are integrally formed with bosses, the bosses are fixed to the fixing plate by screws, and a plurality of screw holes are formed on the bosses.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] 1. The utility model has a steel ball rollingly arranged at the bottom end of the piston rod, and a pneumatic clamp is installed at the bottom end of the steel ball. The piston rod can be retracted upward or extended downward after being driven by an external force. Under the rolling force transmission of the steel ball, the pneumatic clamp can be smoothly driven to perform a clamping operation, and the problem of jamming is not likely to occur. The pneumatic clamp works more stably and reliably and is not prone to malfunction.
[0015] 2. The utility model is provided with an integrated cylinder seat, and an integrated flow channel is opened inside the integrated cylinder seat, and a plurality of piston holes are connected with the integrated flow channel. After the integrated flow channel is connected to the air pipe, it can drive multiple piston rods after ventilation, and open the clamp body, and rely on the restoring elastic force of the torsion spring to close the clamp body to grasp the chip. Therefore, the design of the integrated cylinder seat and the integrated flow channel can reduce the size of the clamp and reduce its weight. At the same time, the wiring and air circulation are simple, and the structure is more beautiful. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.
[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model from a first viewing angle;
[0018] Figure 2 This is a schematic diagram of the third perspective structure of the utility model;
[0019] Figure 3 It is a schematic diagram of the explosion structure of the utility model;
[0020] Figure 4 It is a three-dimensional structural schematic diagram of the integrated cylinder seat in the utility model;
[0021] Figure 5 The utility model is a schematic diagram of the assembly of the piston rod, the steel ball and the pneumatic clamp.
[0022] In the figure: 1-integrated cylinder seat; 2-fixing plate; 201-installation groove; 202-positioning groove; 203-first groove; 204-second groove; 3-piston hole; 4-piston rod; 5-steel ball; 6-pneumatic clamp; 601-positioning pin; 602-torsion spring; 603-clamp body; 604-pin hole; 7-integrated flow channel; 8-sealing ring; 9-boss; 10-screw hole. DETAILED DESCRIPTION
[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0024] An integrated multi-point clamp for chip plastic packaging, such as Figure 1 , Figure 2 , Figure 3As shown, it includes an integrated cylinder seat 1 and a fixed plate 2, and the integrated cylinder seat 1 is fixedly installed on the upper end of the fixed plate 2, a plurality of piston holes 3 are opened at the bottom of the integrated cylinder seat 1, an integrated flow channel 7 is opened inside the integrated cylinder seat 1, and the plurality of piston holes 3 are connected with the integrated flow channel 7; a piston rod 4 is slidably sleeved inside each piston hole 3, a sealing ring 8 is fixed on the outer wall of the piston rod 4, and the sealing ring 8 is used to seal the gap between the outer wall of the piston rod 4 and the inner wall of the piston hole 3, a steel ball 5 is rollingly arranged at the bottom end of the piston rod 4, a pneumatic clamp 6 is installed at the bottom end of the steel ball 5, and the pneumatic clamp 6 is installed on the fixed plate 2, the piston rod 4 can move up and down on the inner wall of the piston hole 3 after being driven by an external force, so that under the rolling force transmission action of the steel ball 5, the pneumatic clamp 6 can be smoothly driven to perform a clamping operation, and it is not easy to get stuck, and the pneumatic clamp 6 works more stably and reliably with a low failure rate.
[0025] like Figure 1 , Figure 2 , Figure 3 As shown, the pneumatic clamp 6 includes a positioning pin 601, a torsion spring 602 and a clamp body 603. The positioning pin 601 is fixedly installed inside the fixed plate 2, and the clamp body 603 is rotatably installed on the outer wall of the positioning pin 601, and the torsion spring 602 is also sleeved on the outer wall of the positioning pin 601; a pin hole 604 is opened inside the clamp body 603 to match the positioning pin 601, and the power arm of the clamp body 603 is in contact with the steel ball 5, and the end of the resistance arm of the clamp body 603 is bent upward to form a claw hook.
[0026] like Figure 1 , Figure 2 , Figure 3 As shown, the upper surface of the fixed plate 2 is provided with a plurality of mounting grooves 201 which are arranged to cooperate with the clamp body 603, and positioning grooves 202 are integrally provided on both sides of each mounting groove 201, and positioning pins 601 are fixedly installed inside the left and right positioning grooves 202; the four corners of the fixed plate 2 are chamfered, and the lower surface of the fixed plate 2 is also provided with a plurality of first grooves 203 and second grooves 204, and the first grooves 203 and the second grooves 204 are both connected with the mounting grooves 201, the first grooves 203 provide space for the free rotation of the resistance arm of the clamp body 603, and the second grooves 204 provide space for the free rotation of the power arm of the clamp body 603.
[0027] like Figure 1 , Figure 2 , Figure 3 As shown, the front and rear side walls of the integrated cylinder seat 1 are integrally formed with bosses 9, the bosses 9 are fixed to the fixing plate 2 by screws, and a plurality of screw holes 10 are provided on the bosses 9, so as to facilitate the assembly and disassembly between the integrated cylinder seat and the fixing plate 2 and facilitate maintenance.
[0028] When the utility model is working, the integrated flow channel 7 is first connected to the external air pipe and the valve valve, and the integrated flow channel 7 can be ventilated by opening the valve valve. After ventilation, the gas will enter the interior of the plurality of piston holes 3 respectively and drive the piston rod 4 to extend downward. The piston rod 4 can press downward and open the clamping claw body 603 under the force transmission of the steel ball 5, and then close the valve valve. Under the reset elastic force of the torsion spring 602, the clamping claw body 603 will rotate and return to its original state, and then the chip can be grasped. The presence of the torsion spring 602 can achieve elastic gripping without causing chip damage and deformation; the utility model also utilizes the design of an integrated cylinder seat 1 and an integrated flow channel 7, which can reduce the size of the clamp and reduce its weight, while simplifying the wiring and air flow and making the structure more beautiful; at the same time, multiple groups of clamp bodies 603 in the utility model can perform clamping work in a unified manner, which can ensure the consistency of the position of the clamped material and will not damage the chip. The fixing plate 2 matched with the clamp body 603 can also perform batch punching processing, and the size is accurate and the adaptability is high.
[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An integrated multi-point clamp for chip plastic packaging, comprising an integrated cylinder seat (1) and a fixing plate (2), wherein the integrated cylinder seat (1) is fixedly mounted on the upper end of the fixing plate (2), characterized in that: The bottom of the integrated cylinder seat (1) is provided with a plurality of piston holes (3), and a piston rod (4) is slidably sleeved inside each of the piston holes (3), a steel ball (5) is rollably arranged at the bottom end of the piston rod (4), and a pneumatic clamp (6) is mounted at the bottom end of the steel ball (5), and the pneumatic clamp (6) is mounted on the fixing plate (2).
2. The integrated multi-point clamp for chip plastic packaging according to claim 1, characterized in that: An integrated flow channel (7) is provided inside the integrated cylinder seat (1), and a plurality of the piston holes (3) are connected to the integrated flow channel (7).
3. The integrated multi-point clamp for chip plastic packaging according to claim 1, characterized in that: The pneumatic clamp (6) comprises a positioning pin (601), a torsion spring (602) and a clamp body (603); the positioning pin (601) is fixedly installed inside the fixing plate (2), and the clamp body (603) is rotatably installed on the outer wall of the positioning pin (601), and the torsion spring (602) is also sleeved on the outer wall of the positioning pin (601).
4. The integrated multi-point clamp for chip plastic packaging according to claim 3, characterized in that: The clamp body (603) has a pin hole (604) inside that matches the positioning pin (601), and the power arm of the clamp body (603) is in contact with the steel ball (5), and the end of the resistance arm of the clamp body (603) is bent upward to form a claw hook.
5. The integrated multi-point clamp for chip plastic packaging according to claim 4, characterized in that: The upper surface of the fixing plate (2) is provided with a plurality of mounting grooves (201) matched with the clamping jaw body (603), and positioning grooves (202) are integrally formed on both sides of each mounting groove (201), and the positioning pins (601) are fixedly installed inside the left and right positioning grooves (202).
6. The integrated multi-point clamp for chip plastic packaging according to claim 5, characterized in that: The four corners of the fixing plate (2) are chamfered, and the lower surface of the fixing plate (2) is also provided with a plurality of first grooves (203) and second grooves (204), and the first grooves (203) and the second grooves (204) are both connected to the mounting groove (201), the first grooves (203) provide space for the resistance arm of the clamp body (603) to rotate freely, and the second grooves (204) provide space for the power arm of the clamp body (603) to rotate freely.
7. The integrated multi-point clamp for chip plastic packaging according to claim 1, characterized in that: A sealing ring (8) is fixed to the outer wall of the piston rod (4), and the sealing ring (8) is used to seal the gap between the outer wall of the piston rod (4) and the inner wall of the piston hole (3).
8. The integrated multi-point clamp for chip plastic packaging according to claim 1, characterized in that: The front and rear side walls of the integrated cylinder seat (1) are integrally formed with bosses (9), the bosses (9) are fixed to the fixing plate (2) by screws, and a plurality of screw holes (10) are provided on the bosses (9).