Chip welding head positioning base

Abstract

The utility model discloses a chip welding head positioning base which comprises two positioning metal blocks, and a welding head is located between the two positioning metal blocks. The positioning base further comprises a center positioning plate located between the two positioning metal blocks, a wedge-shaped tip is arranged at the bottom of the center positioning plate, a second positioning groove matched with the wedge-shaped tip is formed in the top of the welding head, and the second positioning groove is located in the middle of the welding head. The chip welding head positioning base is used for positioning and connecting a welding head, the positioning base is provided with the center positioning plate, the center positioning plate is used for positioning the center position of the welding head, the determined position of the welding head on a rack is kept, butt welding of the welding head to the accurate position of a chip on an IC card is guaranteed, and the welding efficiency is improved. The positioning metal block positions and clamps the side face of the welding head, and stable connection between the welding head and the machine frame is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to chip processing equipment technical field especially relates to a chip welding head positioning base. BACKGROUND

[0002] IC card is built-in microelectronic chip and PCB circuit, and the PCB circuit is usually designed as card shape, and the circuit design and layout provide a connecting channel between these elements, and the microelectronic chip needs to be connected with the PCB circuit through the butt welding after being filled in the IC card.

[0003] In the prior art, the IC card is generally produced in batches, and multiple IC cards are arranged on a plastic plate, therefore, multiple welding heads are generally arranged on the welding machine to simultaneously weld the chips on the multiple IC cards on the plastic plate. The welding head is generally fixedly connected between two metal blocks, and the welding head and the two metal blocks are in contact for conduction and heat conduction. During the welding process, the contact positioning surface between the welding head and the two metal blocks will be oxidized, affecting the welding quality, so the metal blocks need to be polished, and the metal blocks are clamped again after material polishing, affecting the position of the welding head, and further affecting the accuracy of the simultaneous welding of the welding head on the multiple IC cards. SUMMARY

[0004] The utility model discloses a chip welding head positioning base for the inaccurate positioning of the welding head after cleaning the PCB circuit and chip butt welding of the existing IC card.

[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0006] A chip welding head positioning base, comprising two positioning metal blocks, and a welding head located between the two positioning metal blocks. The positioning base further comprises a center positioning plate located between the two positioning metal blocks, and the bottom of the center positioning plate is provided with a wedge-shaped tip, the top of the welding head is provided with a second positioning groove matched with the wedge-shaped tip, and the second positioning groove is located in the middle of the welding head.

[0007] Preferably, the opposite surfaces of the two positioning metal blocks are provided with second positioning grooves, the two sides of the welding head are provided with positioning blocks, the positioning blocks are matched with the second positioning grooves, and when the positioning metal blocks are attached to the welding head, the positioning blocks are located in the second positioning grooves to form the positioning of the welding head.

[0008] Preferably, the two positioning metal blocks are respectively provided with first bolt holes, and a first bolt penetrates the first bolt holes of the two positioning metal blocks to connect the two positioning metal blocks.

[0009] Preferably, it also includes a connecting bracket, and the positioning metal block is provided with a second bolt hole. The second bolt hole is a strip-shaped through hole, and the extension direction of the second bolt hole is parallel to the extension direction of the axis of the first bolt. The second bolt passes through the second bolt hole of the connecting bracket and the positioning metal block to realize the connection between the positioning metal block and the connecting bracket.

[0010] Preferably, a support sleeve is provided between the connecting bracket and the positioning metal block, and the support sleeve is fitted onto the outside of the second bolt.

[0011] Preferably, both the center positioning plate and the support sleeve are made of ceramic material.

[0012] The beneficial effects of this utility model are:

[0013] 1. The chip welding head positioning base is used for positioning and connecting the welding head. The positioning base is equipped with a central positioning plate, which is used to position the center of the welding head and maintain the welding head in a fixed position on the frame to ensure that the welding head is accurately soldered to the chip on the IC card. The positioning metal block positions and clamps the welding head from the side to achieve a stable connection between the welding head and the frame.

[0014] 2. The positioning base of this chip welding head is used to connect the positioning metal block of the welding head. The positioning metal block can be moved. When the contact surface between the positioning metal block and the welding head is oxidized, the position of the positioning metal block can be adjusted to maintain effective connection and positioning of the welding head. Due to the positioning effect of the central positioning plate, the welding head does not change with the movement of the positioning metal block in the frame. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the positioning base for the chip welding head;

[0016] Figure 2 This is a schematic diagram of the front structure of the positioning base for the chip welding head;

[0017] Figure 3 This is a structural schematic diagram of the cross-section of the positioning base AA of the chip welding head;

[0018] Figure 4 This is a schematic diagram of the positioning metal block in the positioning base of the chip welding head;

[0019] Figure 5 This is a schematic diagram of the welding head structure in the positioning base of the chip welding head.

[0020] In the diagram: 1. Frame; 2. Connecting bracket; 3. Center positioning plate; 4. Positioning metal block; 5. Welding head; 6. First bolt; 7. Second bolt; 8. Support sleeve; 41. First bolt hole; 42. Second bolt hole; 43. First positioning groove; 51. Second positioning groove; 52. Positioning block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Reference Figure 1 and Figure 2 A chip welding head positioning base is fixedly connected to a frame 1 used for chip welding. A connecting bracket 2 is provided on the frame 1. The connecting bracket 2 includes two L-shaped support plates, and a central positioning plate 3 is located in the middle of the connecting bracket 2. The two L-shaped support plates are located on both sides of the central positioning plate 3. Both the connecting bracket 2 and the central positioning plate 3 are insulators, with the central positioning plate 3 being made of ceramic material, possessing insulating properties and high-temperature resistance.

[0023] Two positioning metal blocks 4 are provided between the two L-shaped support plates of the aforementioned connecting bracket 2, and the welding head 5 is connected between the two positioning metal blocks 4. (Reference) Figure 3 Each of the two positioning metal blocks 4 has a first bolt hole 41. The first bolt 6 passes through the first bolt hole 41 of the two positioning metal blocks 4 to achieve the connection between the two positioning metal blocks 4. The welding head 5 is clamped between the two positioning metal blocks 4.

[0024] Further reference Figure 4 and Figure 5 Two positioning metal blocks 4 have first positioning grooves 43 on their opposite surfaces, and positioning blocks 52 are provided on both sides of the welding head 5, with the positioning blocks 52 matching the first positioning grooves 43. When the welding head 5 is clamped between the two positioning metal blocks 4, the positioning metal blocks 4 are in contact with the welding head 5, and the positioning blocks 52 are located inside the first positioning grooves 43 to position the welding head 5. The positioning blocks 52 are hemispherical, and the first positioning grooves 43 are recessed hemispherical grooves.

[0025] The aforementioned positioning metal block 4 is provided with a second bolt hole 42, the extension direction of which is parallel to the extension direction of the axis of the first bolt 6. The second bolt 7 passes through the second bolt hole 42 of the connecting bracket 2 and the positioning metal block 4 to achieve the connection between the positioning metal block 4 and the connecting bracket 2. A support sleeve 8 is also provided between the connecting bracket 2 and the positioning metal block 4. The support sleeve 8 is fitted onto the outside of the second bolt 7, and the support sleeve 8 is made of ceramic material.

[0026] Furthermore, when the contact surface between the positioning metal block 4 and the welding head 5 is oxidized, the contact surface between the positioning metal block 4 and the welding head 5 needs to be ground and cleaned. The reduction of material will affect the positioning contact between the positioning metal block 4 and the welding head 5. Therefore, the second bolt hole 42 is a strip-shaped through hole, which facilitates the horizontal movement of the positioning metal block 4. By adjusting the position of the positioning metal block 4, the positioning metal block 4 can be effectively connected and positioned to the welding head 5.

[0027] Furthermore, the central positioning plate 3 is also located between the two positioning metal blocks 4. The bottom of the central positioning plate 3 is provided with a wedge-shaped tip, and the top of the welding head 5 is provided with a second positioning groove 51 that matches the wedge-shaped tip. The second positioning groove 51 is located in the middle of the welding head 5. When adjusting the position of the positioning metal blocks 4, due to the positioning effect of the central positioning plate 3 on the welding head 5, the welding head 5 is fixed in position on the frame 1 and does not change with the movement of the positioning metal blocks.

[0028] In this embodiment, the chip welding head positioning base is used for positioning and connecting the welding head 5. A central positioning plate 3 is provided on the positioning base. The central positioning plate 3 is used for positioning the center position of the welding head 5. When the positioning metal block 4 is adjusted, the welding head 5 is kept in a fixed position on the frame 1 by the positioning of the central positioning plate 3, so as to realize the welding head 5 to accurately weld the chip on the IC card.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A chip bonding head positioning base, comprising two positioning metal blocks (4), wherein the bonding head (5) is located between the two positioning metal blocks (4), characterized in that, It also includes a central positioning plate (3), which is located between two positioning metal blocks (4). The bottom of the central positioning plate (3) is provided with a wedge-shaped tip, and the top of the welding head (5) is provided with a second positioning groove (51) that matches the wedge-shaped tip. The second positioning groove (51) is located in the middle of the welding head (5).

2. The chip welding head positioning base according to claim 1, characterized in that, The two positioning metal blocks (4) are provided with a first positioning groove (43) on their opposite sides. The welding head (5) is provided with positioning blocks (52) on both sides. The positioning blocks (52) match the first positioning groove (43). When the positioning metal blocks (4) are in contact with the welding head (5), the positioning blocks (52) are located inside the first positioning groove (43) to form the positioning of the welding head (5).

3. The chip welding head positioning base according to claim 2, characterized in that, Each of the two positioning metal blocks (4) is provided with a first bolt hole (41), and the first bolt (6) passes through the first bolt hole (41) of the two positioning metal blocks (4) to realize the connection between the two positioning metal blocks (4).

4. The chip welding head positioning base according to claim 3, characterized in that, It also includes a connecting bracket (2), and the positioning metal block (4) is provided with a second bolt hole (42). The second bolt hole (42) is a strip-shaped through hole. The extension direction of the second bolt hole (42) is parallel to the extension direction of the axis of the first bolt (6). The second bolt (7) passes through the second bolt hole (42) of the connecting bracket (2) and the positioning metal block (4) to realize the connection between the positioning metal block (4) and the connecting bracket (2).

5. The chip bonding head positioning base according to claim 4, characterized in that, A support sleeve (8) is also provided between the connecting bracket (2) and the positioning metal block (4), and the support sleeve (8) is sleeved on the outside of the second bolt (7).

6. The chip bonding head positioning base according to any one of claims 1-5, characterized in that, Both the central positioning plate (3) and the support sleeve (8) are made of ceramic material.

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