Special bonding clamp compatible with multiple models

Abstract

The utility model relates to a special bonding clamp compatible with multiple models. The technical problem that an existing bonding jig is unreasonable in design is solved. The multi-model compatible special-purpose bonding clamp comprises a machine base plate, the middle part of which is provided with a through installation hole; the loading tray can be attached to the bottom of the machine table bottom plate, product positioning frames extending into the mounting holes are arranged at the upper end of the loading tray at intervals, and machined products protruding out of the end faces of the upper ends of the product positioning frames are positioned and embedded in the product positioning frames; the lead frame is fixedly connected to the upper end of the machine table bottom plate, and the lead frame comprises receding holes which are formed in the middle in a penetrating mode at intervals and correspond to the product positioning frames in a one-to-one mode. The multi-model compatible special bonding clamp forms preset positioning of the lead frame, is suitable for positioning and pressing products of different sizes, is high in universality, does not need to disassemble and assemble the lead frame in a secondary positioning mode, is convenient and rapid to replace the pressing block, and does not need to be adjusted.

Description

Technical Field

[0001] The utility model belongs to the field of bonding fixtures and relates to a special bonding fixture which is compatible with multiple models. Background Art

[0002] For example, a Chinese patent document discloses a special bonding fixture that is compatible with multiple models [202222939348.X], including: a bottom pad, a pressure plate, and a plurality of pressure claws; the pressure plate is installed on the upper end of the bottom pad, and a positioning groove is provided on the pressure plate; a plurality of the pressure claws are provided with waist holes; a plurality of the pressure claws are installed on the pressure plate through bolts and the waist holes, and the claws of a plurality of the pressure claws are located in the positioning grooves.

[0003] The defects of the above technical solution are: the pressure claws are suitable for products of different sizes, the adjustment time is long, the adjustment and positioning effect is poor, and the versatility of the overall fixture still has room for improvement. Utility Model Content

[0004] The purpose of the utility model is to provide a multi-model compatible special bonding fixture in view of the above problems existing in the prior art.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] The multi-model compatible dedicated bonding fixture includes:

[0007] The machine bottom plate has a through mounting hole in the middle;

[0008] A loading tray can be attached to the bottom of the machine base plate, and a product positioning frame extending into the mounting hole is provided at an interval on the upper end of the loading tray, and the product positioning frame is positioned and embedded with a processed product protruding from the upper end surface of the product positioning frame;

[0009] A lead frame is fixedly connected to the upper end of the machine base plate, the lead frame includes clearance holes that are arranged at intervals in the middle and correspond to the product positioning frame one by one, at least two abutment blocks that radially protrude from the inner walls of the lower ends of the two sides of the clearance holes, a recessed mounting notch is provided at the upper end of the lead frame located at the abutment block, and a pressing block that is detachably arranged in the mounting notch and has both sides attached to the inner walls of the mounting notch, one end of the pressing block protrudes from the end of the abutment block and abuts against the upper end of the processed product.

[0010] Furthermore, a mounting groove communicating with the mounting hole is provided at intervals on the upper end of the machine base plate.

[0011] Furthermore, a circumferential outer wall of the lead frame is provided with a positioning block correspondingly embedded in the mounting groove and connected to the machine base plate.

[0012] Furthermore, the lead frame is embedded in the mounting hole and the circumferential outer wall of the lead frame is in contact with the inner wall of the mounting hole.

[0013] Furthermore, the pressing block is connected to the abutting block via a mounting bolt, and the mounting bolt passes through the abutting block and is threadedly connected to the pressing block.

[0014] Furthermore, positioning grooves are provided on the inner walls on both sides of the installation notch, and the two ends of the pressing block are transversely inserted into the positioning grooves and fit on the abutment block.

[0015] Furthermore, the abutment block is provided with at least two abutment portions which protrude from the inner wall of the clearance hole at intervals.

[0016] Furthermore, the pressing block is provided with a pressing portion corresponding to the abutting portion, the pressing portion has an L-shaped cross section, and one end of the pressing portion away from the pressing block abuts against the end of the abutting portion.

[0017] Furthermore, the abutting portion abuts against the product positioning frame, and the pressing portion abuts against the processed product.

[0018] Furthermore, a handle protruding from the side of the machine bottom plate is provided at one end of the loading tray.

[0019] Compared with the existing technology, this multi-model compatible special bonding fixture forms a preset positioning of the lead frame through a fixed connection between the lead frame and the machine base plate. At the same time, by replacing the detachable pressure block, it is suitable for positioning and holding products of different sizes. The fixture has strong versatility, and the secondary positioning method does not require disassembly of the lead frame. Replacing the pressure block is convenient and quick and does not require adjustment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of a multi-model compatible special bonding fixture provided by the utility model.

[0021] Figure 2 for Figure 1 Schematic diagram of removing the clamp of the multi-model compatible special bonding fixture.

[0022] Figure 3 for Figure 1 A side view of a multi-model compatible dedicated bonding fixture.

[0023] Figure 4 for Figure 1 Schematic diagram of the installation of the clamp of the multi-model compatible special bonding fixture Figure 1 .

[0024] Figure 5 for Figure 1 Schematic diagram of the installation of the clamp of the multi-model compatible special bonding fixture Figure 2 .

[0025] In the figure, 10, machine base plate; 11, mounting hole; 12, mounting groove; 13, threaded fastening structure; 20, loading tray; 21, product positioning frame; 22, handle; 30, processed product; 40, lead frame; 41, clearance hole; 42, abutment block; 43, mounting notch; 44, positioning block; 45, positioning groove; 46, abutment portion; 50, pressure block; 51, downward pressure portion; 60, mounting bolt. DETAILED DESCRIPTION

[0026] Embodiment 1

[0027] See also Figures 1 to 3 , which is a schematic diagram of a multi-model compatible special bonding fixture provided by the utility model.

[0028] The multi-model compatible special bonding fixture includes: a machine base plate 10, a loading tray 20 arranged at the bottom of the base plate, and a lead frame 40 arranged at the upper end of the machine base plate 10. It can be imagined that the multi-model compatible special bonding fixture also includes other functional components and specific structures, such as bonding equipment, electrical connection components, mounting structures, etc., which are all technologies well known to technical personnel in this field, so they will not be described in detail one by one here.

[0029] The machine base plate 10 is installed on the bonding device. A penetrating mounting hole 11 is provided in the middle of the machine base plate 10 . The mounting hole 11 provides sufficient space, which is beneficial for positioning the processed product 30 in the lead frame 40 .

[0030] In this embodiment, the loading tray 20 is in the shape of a rectangular block as a whole and is installed on a lifting mechanism below the machine base plate 10. The lifting mechanism enables the loading tray 20 to fit the bottom of the machine base plate 10 to complete the loading and unloading process of the loading tray 20.

[0031] A product positioning frame 21 extending into the mounting hole 11 is provided at intervals on the upper end of the loading tray 20, and the cavity of the product positioning frame 21 is set according to the outer contour of the processed product 30. In this embodiment, the product positioning frame 21 is in a rectangular ring shape, and each product positioning frame 21 corresponds to a single processed product 30. The processed product 30 is placed in the product positioning frame 21, and the processed product 30 protrudes from the upper end surface of the product positioning frame 21. This structure facilitates the upper end limit of the processed product 30 and the loading and unloading of the processed product 30. A handle 22 protruding from the side of the machine bottom plate 10 is provided at one end of the loading tray 20 to facilitate the loading and unloading of the entire loading tray 20.

[0032] It is conceivable that a recessed groove may be provided at the bottom of the machine base plate 10 , so that when the loading tray 20 is abutted in place, horizontal deviation of the loading tray 20 can be avoided.

[0033] The lead frame 40 is fixedly connected to the upper end of the machine base plate 10, and a mounting groove 12 connected to the mounting hole 11 is provided at intervals on the upper end of the machine base plate 10, and a positioning block 44 corresponding to the mounting groove 12 and connected to the machine base plate 10 is provided on the circumferential outer wall of the lead frame 40. In this embodiment, the lead frame 40 is initially fixed by positioning a plurality of positioning blocks 44 with the mounting groove 12, and then the positioning block 44 is connected to the mounting groove 12 by the threaded fastening structure 13. The size of the lead frame 40 is the same as the size of the mounting hole 11, so that the lead frame 40 can be completely embedded in the mounting hole 11, and the circumferential outer wall of the lead frame 40 is in contact with the inner wall of the mounting hole 11. Under this structure, the lead frame 40 does not form an external protrusion structure on the upper end of the machine base plate 10, and the upper end of the machine base plate 10 has a high flatness, which is conducive to the bonding equipment to be closer to the processed product 30 to complete the operation.

[0034] Specifically, the lead frame 40 includes clearance holes 41 that are arranged at intervals in the middle, each of which corresponds to the product positioning frame 21, and there is a gap between the inner wall of the clearance hole 41 and the product positioning frame 21. At least two spaced inner walls at the lower ends of both sides of the clearance hole 41 are provided with radially protruding abutment blocks 42. In this embodiment, the abutment block 42 is provided with at least two abutment portions 46 that protrude from the inner wall of the clearance hole 41 at intervals. This structure is suitable for large-sized processed products 30, and the abutment portions 46 correspondingly abut against the upper edge of the processed product 30 to achieve pressure holding and positioning.

[0035] Optimally, a recessed installation notch 43 is provided at the upper end of the lead frame 40 located at the abutment block 42. In this embodiment, the two installation notches 43 at the proximal ends of the adjacent clearance holes 41 are connected. A pressing block 50 is detachably provided in the installation notch 43. The outer walls of both sides of the pressing block 50 are attached to the inner walls of the installation notch 43 to form a reference positioning installation. The size of the pressing block 50 is selected appropriately without additional adjustment. In this embodiment, the pressing block 50 is connected to the abutment block 42 by a mounting bolt 60. The mounting bolt 60 passes through the abutment block 42 and is threadedly connected to the pressing block 50. One end of the pressing block 50 protrudes from the end of the abutment block 42, and the protruding length of the abutment block 42 is extended by the pressing block 50. A pressing portion 51 corresponding to the abutment portion 46 is provided on the pressing block 50. The abutment portion 46 plays a supporting role at the bottom of the pressing portion 51. The pressing portion 51 can abut against the upper end of the processed product 30, which is suitable for processed products 30 of smaller size.

[0036] The fixed connection between the lead frame 40 and the machine base plate 10 forms a preset positioning of the lead frame 40. By replacing the detachable pressure block 50, it is suitable for positioning and holding processed products 30 of different sizes. The jig has strong versatility, and the secondary positioning method does not require disassembly of the lead frame 40. Replacing the pressure block 50 is convenient and quick and does not require adjustment.

[0037] See also Figure 4The cross-section of the pressing portion 51 is L-shaped and one end of the pressing portion 51 away from the pressing block 50 abuts against the end of the abutting portion 46. When the height of the lower end of the pressing portion 51 is the same as the height of the lower end of the abutting portion 46, the abutting portion 46 of this structure provides lateral abutting support for the pressing portion 51, thereby improving the compressive strength of the pressing portion 51, and the pressing block 50 can also be made thinner.

[0038] In addition, when the height of the lower end of the pressing portion 51 is lower than the height of the lower end of the abutting portion 46, the abutting portion 46 abuts on the product positioning frame 21, and the pressing portion 51 abuts on the processed product 30. The stepped structure formed by the two forms a positioning and pressing force between the lead frame 40 and the product positioning frame 21 and the upper end of the processed product 30.

[0039] Embodiment 2

[0040] See also Figure 5 The structure and principle of this embodiment are basically the same as those of the first embodiment, with the only difference being that positioning grooves 45 are provided on the inner walls on both sides of the installation notch 43, and the two ends of the pressing block 50 are laterally inserted into the positioning grooves 45 and abutted on the abutment block 42. By inserting the pressing block 50 into the installation notch 43, the positioning installation of the pressing block 50 is also formed, and the pressing block 50 has a higher strength of pressing and holding effect.

[0041] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. A multi-model compatible special bonding fixture, characterized in that: include: The machine bottom plate has a through-going mounting hole in the middle; A loading tray can be attached to the bottom of the machine base plate, and a product positioning frame extending into the mounting hole is provided at an interval on the upper end of the loading tray, and the product positioning frame is positioned and embedded with a processed product protruding from the upper end surface of the product positioning frame; A lead frame is fixedly connected to the upper end of the machine base plate, the lead frame includes clearance holes that are arranged at intervals in the middle and correspond to the product positioning frame one by one, at least two abutment blocks that radially protrude from the inner walls of the lower ends of the two sides of the clearance holes, a recessed mounting notch is provided at the upper end of the lead frame located at the abutment block, and a pressing block that is detachably arranged in the mounting notch and has both sides attached to the inner walls of the mounting notch, one end of the pressing block protrudes from the end of the abutment block and abuts against the upper end of the processed product.

2. The multi-model compatible special bonding fixture according to claim 1, characterized in that: The upper end of the machine bottom plate is provided with mounting grooves communicating with the mounting holes.

3. The multi-model compatible special bonding fixture according to claim 2, characterized in that: The circumferential outer wall of the lead frame is provided with a positioning block correspondingly embedded in the mounting groove and connected to the machine bottom plate.

4. The multi-model compatible special bonding fixture according to claim 3, characterized in that: The lead frame is embedded in the mounting hole and the circumferential outer wall of the lead frame is in contact with the inner wall of the mounting hole.

5. The multi-model compatible special bonding fixture according to claim 1, characterized in that: The pressing block is connected to the abutting block by means of mounting bolts, and the mounting bolts pass through the abutting block and are threadedly connected to the pressing block.

6. The multi-model compatible special bonding fixture according to claim 5, characterized in that: The inner walls on both sides of the installation notch are provided with positioning grooves, and the two ends of the pressing block are transversely inserted into the positioning grooves and abut on the abutment block.

7. The multi-model compatible special bonding fixture according to claim 1, characterized in that: The abutment block is provided with at least two abutment portions which are spaced apart and protrude from the inner wall of the clearance hole.

8. The multi-model compatible special bonding fixture according to claim 7, characterized in that: The pressing block is provided with a pressing portion corresponding to the abutting portion, the pressing portion has an L-shaped cross section, and one end of the pressing portion away from the pressing block abuts against the end of the abutting portion.

9. The multi-model compatible special bonding fixture according to claim 8, characterized in that: The abutting portion abuts against the product positioning frame, and the pressing portion abuts against the processed product.

10. The multi-model compatible special bonding fixture according to claim 1, characterized in that: One end of the loading tray is provided with a handle protruding from the side of the machine bottom plate.

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