Bonding wire limiting clamp for PCBA (Printed Circuit Board Assembly) product

Abstract

The utility model discloses a bonding wire limiting clamp for PCBA products, which comprises a limiting clamp main body arranged on a bonding wire machine. A chip positioning groove is formed in the top of the limiting clamp body in a downward concave mode, and one side end of the chip positioning groove penetrates through the edge of one side of the limiting clamp body. The shape and the size of the chip positioning groove are consistent with those of an NPD-LN20-01 product, so that the NPD-LN20-01 product can be inserted into the chip positioning groove in a matched manner through one side end of the chip positioning groove; and a structural groove matched with the NPD-LN20-01 product is formed in the other side end of the chip positioning groove, so that a convex structure of the NPD-LN20-01 product can be inserted into the structural groove in a matched manner. The utility model relates to the technical field of chip manufacturing, and can solve the problem that the position of a bonding wire of an NPD-LN20-01 product has errors in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of chip manufacturing, in particular to a wire bonding limit fixture for PCBA products. Background Art

[0002] PCBA (Printed Circuit Board Assembly) is the entire process of a blank PCB board through SMT mounting or DIP plug-in. On a certain PCBA product production line, the NPD-LN20-01 chip needs to be mounted on the blank PCB board and wired to form the NPD-LN20-01 product. The traditional process is: mount the NPD-LN20-01 chip on the PCB board, and then place the mounted PCB board on the wire bonding machine for wire bonding. However, each time the placement position of the NPD-LN20-01 product on the wire bonding machine will have a certain deviation, resulting in a certain deviation in the wire bonding position of the NPD-LN20-01 product, and a high wire bonding defect rate, which affects the quality of the NPD-LN20-01 product.

[0003] Each time the NPD-LN20-01 product is placed on the wire bonding machine, the position of the NPD-LN20-01 product needs to be adjusted manually, which greatly reduces the production efficiency, and the accuracy of manual adjustment cannot be guaranteed. Therefore, it is necessary to provide a wire bonding limit fixture for PCBA products, which can solve the problem of error in the wire bonding position of the NPD-LN20-01 product in the prior art. Summary of the invention

[0004] The purpose of the utility model is to provide a wire soldering position limiting fixture for PCBA products, which can solve the problem of error in the wire soldering position of NPD-LN20-01 products in the prior art.

[0005] The utility model is achieved in this way:

[0006] A wire welding limit fixture for PCBA products comprises a limit fixture body, which is arranged on a wire welding machine; a chip positioning groove is formed in a concave manner on the top of the limit fixture body, and one side end of the chip positioning groove penetrates through one side edge of the limit fixture body; the shape and size of the chip positioning groove are consistent with the shape and size of the NPD-LN20-01 product, so that the NPD-LN20-01 product can be inserted into the chip positioning groove through one side end of the chip positioning groove; a structural groove matching the NPD-LN20-01 product is formed on the other side end of the chip positioning groove, so that the protruding structure of the NPD-LN20-01 product can be matched and plugged into the structural groove.

[0007] A positioning column is formed at the bottom of the limit clamp body, and a positioning hole is formed on the wire bonding machine. The positioning column can be matched and plugged into the positioning hole, so that the limit clamp body is positioned and installed on the wire bonding machine, thereby positioning the NPD-LN20-01 product on the wire bonding machine.

[0008] The wire bonding machine is provided with a plurality of pressing claws. When the NPD-LN20-01 product is positioned and arranged on the wire bonding machine, the plurality of pressing claws can press against the NPD-LN20-01 product.

[0009] The concave depth of the chip positioning groove is consistent with the thickness of the NPD-LN20-01 product, so that the surface of the NPD-LN20-01 product is flush with the surface of the limiting fixture body.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] 1. The utility model is provided with a limit fixture body, which completely matches the embedded NPD-LN20-01 product through the chip positioning groove and the structural groove, and realizes the precise positioning of the limit fixture body and the wire bonding machine through the positioning column and the positioning hole, so that the placement position of the NPD-LN20-01 product on the wire bonding machine can be consistent each time, and there is no need to manually adjust the placement position of the NPD-LN20-01 product, thereby improving the wire bonding quality and wire bonding efficiency of PCBA products.

[0012] 2. The utility model is provided with a chip positioning groove, and the side of the chip positioning groove away from the structural groove penetrates the limiting fixture body, so that the NPD-LN20-01 product can be quickly plugged into the chip positioning groove, and the protruding structure on the NPD-LN20-01 product is embedded in the structural groove, which can ensure the positioning accuracy of the NPD-LN20-01 product while improving the positioning efficiency and loading and unloading convenience of the NPD-LN20-01 product.

[0013] 3. The utility model is provided with a pressure claw, which provides a certain downward pressure on the NPD-LN20-01 product, thereby ensuring the stability of the NPD-LN20-01 product during wire welding and the high consistency during placement, and further reducing the defective wire welding rate of PCBA products. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the front view of the wire limiting fixture used for PCBA products of the utility model;

[0015] Figure 2 This is a side view of the wire limiting fixture of the utility model used for PCBA products;

[0016] Figure 3It is a schematic diagram of the connection between the limiting fixture body in the welding wire limiting fixture of the PCBA product and the NPD-LN20-01 product.

[0017] In the figure, 1 is a limiting fixture body, 11 is a chip positioning groove, 12 is a positioning column, 13 is a structural groove, 2 is a NPD-LN20-01 product, and 21 is a protruding structure. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0019] Please see attached Figure 1 To Attachment Figure 3 A wire bonding limit fixture for PCBA products includes a limit fixture body 1, which is arranged on a wire bonding machine; a chip positioning groove 11 is formed in a concave manner on the top of the limit fixture body 1, and one side end of the chip positioning groove 11 passes through one side edge of the limit fixture body 1; the shape and size of the chip positioning groove 11 are consistent with the shape and size of the NPD-LN20-01 product 2, so that the NPD-LN20-01 product 2 can be inserted into the chip positioning groove 11 through one side end of the chip positioning groove 11; a structural groove 13 matching the NPD-LN20-01 product 2 is formed on the other side end of the chip positioning groove 11, so that the protruding structure 21 of the NPD-LN20-01 product 2 can be matched and plugged into the structural groove 13.

[0020] By setting the limiting fixture body 1 on the wire bonding machine, the NPD-LN20-01 product 2 can be stably embedded in the chip positioning groove 11 of the limiting fixture body 1, so that the placement position of the NPD-LN20-01 product 2 on the wire bonding machine is consistent each time, thereby ensuring that the wire bonding machine has consistent wire bonding positions for each NPD-LN20-01 product 2, thereby improving the quality of PCBA products. There is no need to manually adjust the position of the NPD-LN20-01 product 2, which can ensure the accuracy of the wire bonding position of the NPD-LN20-01 product 2 while improving the wire bonding operation efficiency of the NPD-LN20-01 product 2.

[0021] Since one side of the chip positioning groove 11 passes through the limiting clamp body 1, the NPD-LN20-01 product 2 can be quickly plugged into the chip positioning groove 11, and after plugging, the structural groove 13 on the other side can match the protruding structure 21 on the NPD-LN20-01 product 2, ensuring the embedding stability and positioning accuracy of the NPD-LN20-01 product 2 in the limiting clamp body 1, thereby facilitating the precision control of subsequent wire bonding operations.

[0022] Please see attached Figure 1 and attached Figure 2A positioning column 12 is formed at the bottom of the limit clamp body 1, and a positioning hole (not shown in the figure) is formed on the wire bonding machine. The positioning column 12 can be matched and inserted into the positioning hole, so that the limit clamp body 1 is positioned and installed on the wire bonding machine, thereby positioning the NPD-LN20-01 product 2 on the wire bonding machine.

[0023] By setting the positioning column 12 and the positioning hole, the limit clamp body 1 can be quickly positioned and installed on the wire bonding machine, which is beneficial to improving the position accuracy controllability of the limit clamp body 1 and the NPD-LN20-01 product 2 embedded inside and the wire bonding machine, and can make the positioning and wire bonding efficiency higher.

[0024] The wire bonding machine is provided with a plurality of pressing claws (not shown in the figure). When the NPD-LN20-01 product 2 is positioned and arranged on the wire bonding machine, the plurality of pressing claws can press against the NPD-LN20-01 product 2 .

[0025] Preferably, two pressing claws can be provided, each of which can be made of a metal sheet with a certain elasticity. One end of the metal sheet can be rotatably mounted on the wire welding machine through a rotating shaft, and the other end of the metal sheet can be pressed against the NPD-LN20-01 product 2 and provide a certain downward pressure for the NPD-LN20-01 product 2, so that the embedded position and height of each NPD-LN20-01 product 2 in the limit clamp body 1 can be kept consistent.

[0026] The concave depth of the chip positioning groove 11 is consistent with the thickness of the NPD-LN20-01 product 2, so that the surface of the NPD-LN20-01 product 2 is flush with the surface of the limiting fixture body 1.

[0027] After the pressure claw presses down the NPD-LN20-01 product 2, the surface of the NPD-LN20-01 product 2 is flush with the surface of the limiting fixture body 1 to ensure the high consistency of the placement of the NPD-LN20-01 product 2 on the wire bonding machine each time, thereby ensuring the accurate position of the wire bonding and uniform solder joints.

[0028] Please see attached Figure 1 To Attachment Figure 3 , the method of using the utility model is:

[0029] The limiting fixture body 1 is positioned on the wire bonding machine through the positioning column 12 through the positioning hole. After the NPD-LN20-01 chip is mounted on the PCB blank board, the NPD-LN20-01 product 2 is inserted into the chip positioning groove 11 through one side end of the limiting fixture body 1 horizontally. The insertion direction is as shown in the attached figure. Figure 3As shown in the direction of the arrow in the figure, the protruding structure 21 on the NPD-LN20-01 product 2 is matched and inserted into the structural groove 13, so that the positions of the NPD-LN20-01 product 2, the limiting clamp body 1 and the wire bonding machine are relatively fixed, which is convenient for the wire bonding machine to perform precise wire bonding operations on the NPD-LN20-01 product 2.

[0030] By pressing down on the NPD-LN20-01 product 2 with a number of pressure claws, the position and height stability of the NPD-LN20-01 product 2 during the wire bonding process are guaranteed, thereby further ensuring the accuracy of the wire bonding position of the NPD-LN20-01 product 2, ensuring the stable quality of the wire bonding of the NPD-LN20-01 product 2, reducing the welding defect rate, eliminating the need for manual adjustment, and improving production efficiency.

[0031] The shape, size, depth and number of the chip positioning groove 11 and the structural groove 13 are customized according to the shape, size and depth of the NPD-LN20-01 product 2, so as to ensure the accuracy and consistency of the placement position of the NPD-LN20-01 product 2. For other types of PCBA products, the corresponding chip positioning groove 11 and structural groove 13 can be customized according to the shape, size and depth of the actual PCBA product. The wire bonding method is the same as that of the present utility model, which will not be repeated here.

[0032] The above are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A wire welding limit fixture for PCBA products, characterized by: The invention comprises a limiting fixture body (1), wherein the limiting fixture body (1) is arranged on a wire bonding machine; a chip positioning groove (11) is formed in a concave manner on the top of the limiting fixture body (1), and one side end of the chip positioning groove (11) passes through the edge of one side of the limiting fixture body (1); the shape and size of the chip positioning groove (11) are consistent with the shape and size of the NPD-LN20-01 product (2), so that the NPD-LN20-01 product (2) can be inserted into the chip positioning groove (11) through one side end of the chip positioning groove (11); and a structural groove (13) matching the NPD-LN20-01 product (2) is formed on the other side end of the chip positioning groove (11), so that the protruding structure (21) of the NPD-LN20-01 product (2) can be matched and plugged into the structural groove (13).

2. The wire welding limit fixture for PCBA products according to claim 1 is characterized in that: A positioning column (12) is formed at the bottom of the limiting clamp body (1), and a positioning hole is formed on the wire bonding machine. The positioning column (12) can be matched and inserted into the positioning hole, so that the limiting clamp body (1) is positioned and installed on the wire bonding machine, thereby positioning the NPD-LN20-01 product (2) on the wire bonding machine.

3. The wire welding limit fixture for PCBA products according to claim 2 is characterized in that: The wire bonding machine is provided with a plurality of pressing claws. When the NPD-LN20-01 product (2) is positioned and arranged on the wire bonding machine, the plurality of pressing claws can press against the NPD-LN20-01 product (2).

4. The wire welding limit fixture for PCBA products according to claim 1 is characterized in that: The concave depth of the chip positioning groove (11) is consistent with the thickness of the NPD-LN20-01 product (2), so that the surface of the NPD-LN20-01 product (2) is flush with the surface of the limiting fixture body (1).

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