Gripper for receiving a wafer

Abstract

The application discloses a material sheet collecting clamp, which comprises a mounting plate, a pressing assembly, and at least one opening and closing assembly arranged at the bottom of the mounting plate; a plurality of claws are arranged on the two sides of the opening and closing assembly oppositely, and a clamping area is formed between the claws; the opening and closing assembly is used for driving the claws to open or close; the pressing assembly is located in the clamping area, the pressing assembly can limit the opening and closing range of the claws, and is used for fixing the material sheet together with the claws. The pressing assembly can apply pressure to press the edges of the material sheet between the pressing assembly and the claws, ensure the state of the material sheet during transportation, stably and firmly clamp the material sheet, avoid shaking or falling of the material sheet, and improve the transportation stability.

Description

Technical Field

[0001] This application relates to the field of chip molding technology, and in particular to a wafer receiving fixture. Background Technology

[0002] After the chip encapsulation machine has finished encapsulating the chip, during the process of unloading the finished chip, it is usually equipped with grippers to pick up the finished chips and place them together for collection.

[0003] Existing sheet clamps (such as the spring clip type finished product collection mechanism with publication number CN118850723A) grasp or place sheets by simply opening and closing the drive claws, since the sheets are relatively soft. However, excessive clamping force can easily cause the sheets to deform (the middle of the sheet is concave or convex) or even damage the sheet. On the other hand, insufficient clamping force can cause the sheets to wobble between the claws during the conveying process, making it difficult to firmly clamp the sheets. Utility Model Content

[0004] To address the aforementioned technical problems, this application provides a sheet material receiving clamp that, through a pressing component and a gripper, can stably and firmly clamp the sheet without causing damage. The technical solution is as follows: A sheet receiving clamp includes a mounting plate and at least one opening and closing assembly disposed at the bottom of the mounting plate; The opening and closing assembly has several opposing claws on both sides, forming a clamping area between the claws; the opening and closing assembly is used to drive the claws to open or close. A pressing assembly is located within the clamping area. The pressing assembly limits the opening and closing range of the gripper and is used to cooperate with the gripper to fix the material sheet between the gripper and the pressing assembly.

[0005] Preferably, the pressing assembly includes pressing plates and limiting rings located on both sides of the mounting plate, and a guide rod connecting the pressing plates and the limiting rings. The guide rod is slidably connected to the mounting plate, and the pressing plates are used to cooperate with the claw to fix the material sheet.

[0006] More preferably, the bottom of the pressure plate is provided with a relief groove, and the width of the pressure plate is the same as the width of the material sheet.

[0007] Preferably, the claw includes a connecting part and a hook part, the hook part extending inward for supporting the material sheet.

[0008] Preferably, it further includes an elastic component, which is sleeved on the outside of the guide rod and used to push the pressure plate to move.

[0009] Preferably, the opening and closing assembly includes a power component and a pair of mounting brackets. The mounting brackets and the power component are respectively connected by a drive plate. The power component is used to drive the claw to open and close. The claw is mounted on the mounting bracket.

[0010] Preferably, it further includes at least one guide component, which is disposed on the mounting plate and is used to guide and support the opening and closing of the opening and closing component.

[0011] Compared to existing technologies, the beneficial effects of this application are as follows: (1) The pressing component of this application can move along the z-axis direction. By applying pressure along the z-axis direction, the edge of the material sheet is pressed onto the claw, ensuring that the material sheet itself is stable and firmly clamped during transportation, avoiding material sheet shaking and improving transportation stability.

[0012] (2) The width of the pressure plate is consistent with the width of the material sheet. The pressure plate can limit the minimum closing range between the clamps to avoid damaging the material sheet or deforming it. Attached Figure Description

[0013] Figure 1 This is a three-dimensional schematic diagram of this application; Figure 2 This is a front view of this application; Figure 3 This is a schematic diagram of the structure when the sheet is clamped according to this application.

[0014] In the picture: 00. Sheet material; 10. Mounting plate; 20. Material clamping assembly; 210. Pressure plate; 2100. Relief groove; 220. Guide rod; 230. Limiting ring; 30. Opening and closing assembly; 310. Power component; 320. Drive board; 330. Mounting bracket; 40. Claw hand; 400. Clamping area; 410. Connecting part; 420. Hook part; 50. Guide components; 60. Elastic components. Detailed Implementation

[0015] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described in this application are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0016] See Figures 1 to 3 To further elaborate on this application: A sheet material receiving clamp includes a mounting plate 10, a pressing assembly 20, and at least one opening / closing assembly 30 located at the bottom of the mounting plate 10. The mounting plate 10 is used to connect to an external driving device to move the receiving clamp to pick up or place the sheets. In this embodiment, there are two opening / closing assemblies 30, each corresponding to one pressing assembly 20. The opening / closing assemblies 30 are arranged in parallel, allowing for the simultaneous clamping of multiple sheets, thus improving the receiving efficiency.

[0017] Each of the opening and closing components 30 has a plurality of claws 40 arranged opposite to each other on both sides, and the claws 40 form a clamping area 400 for placing the material sheet 00; the opening and closing component 30 is used to drive the claws 40 to open or close, so as to clamp the material sheet 00 in the clamping area 400; wherein, the claw 40 includes a connecting part 410 and a hook part 420, the hook part 420 extends inward to support the material sheet 00, that is, the hook part 420 extends into the clamping area 400.

[0018] The pressing component 20 is located within the clamping area 400 and can move along the z-axis (up and down in the figure). The pressing component 20 can limit the opening and closing range of the claw 40 and is used to cooperate with the claw 40 to fix the material piece 00.

[0019] The pressure assembly 20 of this application can move along the z-axis direction. Figure 2 (The middle part moves up and down). By applying pressure along the z-axis, the edge of the material piece 00 is pressed onto the gripper, ensuring that the material piece itself is held stably and firmly during transportation, preventing the material piece from shaking or falling off, and improving transportation stability.

[0020] When the material sheet 00 is gripped, the material sheet 00 comes into contact with the pressing component 20, pushing the pressing component 20 to move upward. The opening and closing component 30 then drives the claw 40 to close. The pressing component 20 can press the material sheet 00 onto the hook 420 by its own weight, thereby stably gripping the material sheet 00 to prevent the material sheet 00 from shaking or falling off the claw 40.

[0021] In this embodiment, the pressing assembly 20 includes a pressing plate 210 and a limiting ring 230, as well as a guide rod 220 connecting the pressing plate 210 and the limiting ring 230. The pressing plate 210 is located at the bottom of the mounting plate 10 and within the clamping area 400. The limiting ring 230 is located at the top of the mounting plate 10. By adjusting the position of the limiting ring 230 on the guide rod 220, the movement range of the pressing plate 210 can be adjusted and limited, while preventing the pressing plate 210 from leaving the clamping area 400. The pressing plate 210 acts on the material sheet 00 by its own weight, fixing the material sheet 00 between the pressing plate 210 and the claw 40.

[0022] The guide rod 220 is slidably connected to the mounting plate 10; wherein, a first linear bearing is provided between the mounting plate 10 and the guide rod 220, the first linear bearing is provided on the mounting plate 10 and sleeved on the outside of the guide rod 220 to reduce motion resistance.

[0023] Combination Figure 1 The opening / closing assembly 30 includes a power component 310 and a pair of mounting brackets 330. The power component 310 may be a finger cylinder. Drive plates 320 are respectively provided between the mounting brackets 330 and the power component 310, and the claw 40 is mounted on the mounting brackets 330. The power component 310 is used to drive the drive plates 320 to move closer or further apart, thereby driving the claw 40 to open and close.

[0024] In some embodiments, an elastic member 60 is further included, which may be a spring. The elastic member 60 is sleeved on the outside of the guide rod 220 and abuts against the pressure plate 210 and the mounting plate 10, respectively, for pushing the pressure plate 210 to move. When the material sheet 00 pushes the pressing assembly 20 to move, the elastic member 60 is compressed. The elastic member 60 provides downward pressure, thereby pushing the pressure plate 210 downward to further improve the clamping and fixing effect on the material sheet 00.

[0025] Combination Figure 3 The bottom of the pressure plate 210 is provided with a relief groove 2100; the relief groove 2100 is used to avoid the chip on the material sheet 00 and prevent the pressure plate 210 from contacting it.

[0026] In this embodiment, the width of the pressure plate 210 is the same as the width of the material sheet 00. When the opening and closing assembly 30 drives the claw 40 to open and close, the pressure plate 210 can limit the closing range of the claw 40, preventing the claw 40 from squeezing the material sheet 00 when it closes, thus avoiding bending, deformation, or damage to the material sheet 00.

[0027] It also includes at least one guide component 50, which is disposed on the mounting plate 10 and is used to guide and support the opening and closing of the opening and closing component 30. In this embodiment, there are two sets of guide components 50, which are respectively disposed on both sides of the power component 310.

[0028] The guide assembly 50 includes a second linear bearing and a guide rod. The guide rod is connected to the mounting plate 10, and the second linear bearing is sleeved on the outside of the guide rod and connected to the mounting bracket 330. In an embodiment not shown, a copper sleeve and a guide rod may also cooperate to achieve a guiding and supporting function.

Claims

1. A tablet receiving fixture, characterized by: Includes a mounting plate and at least one opening / closing assembly disposed at the bottom of the mounting plate; Each of the opening and closing components has several opposing claws on both sides, forming a clamping area between the claws; the opening and closing components are used to drive the claws to open or close; A pressing assembly is located within the clamping area. The pressing assembly limits the opening and closing range of the gripper and is used to cooperate with the gripper to fix the material sheet between the gripper and the pressing assembly.

2. The green sheet receiving fixture of claim 1, wherein: The pressing assembly includes pressing plates and limiting rings located on both sides of the mounting plate, and guide rods connecting the pressing plates and the limiting rings. The guide rods are slidably connected to the mounting plate, and the pressing plates are used to cooperate with the claw to fix the material sheet.

3. The green sheet receiving fixture of claim 2, wherein: The bottom of the pressure plate is provided with a relief groove, and the width of the pressure plate is the same as the width of the material sheet.

4. The green sheet receiving fixture of claim 1, wherein: The claw includes a connecting part and a hook part, the hook part extending inward to support the material sheet.

5. The green sheet receiving fixture of claim 2, wherein: It also includes an elastic component, which is sleeved on the outside of the guide rod and is used to push the pressure plate to move.

6. The green sheet receiving fixture of claim 1, wherein: The opening and closing assembly includes a power component and a pair of mounting brackets. The mounting brackets and the power component are respectively connected by a drive plate. The power component is used to drive the claw to open and close. The claw is mounted on the mounting bracket.

7. The green sheet receiving fixture of claim 1, wherein: It also includes at least one guide component, which is disposed on the mounting plate and is used to guide and support the opening and closing of the opening and closing component.

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