Welding jig for wire welding machine

Abstract

The utility model provides a welding jig for a wire bonder, which comprises a cover plate, an elastic sheet and a base, the elastic sheet is clamped between the cover plate and the base, a plurality of sinking grooves are arranged at the top end of the base in an array manner, the cover plate and the elastic sheet are provided with holes corresponding to the sinking grooves, and the elastic sheet is symmetrically provided with pressing parts at each hole; a lifting top plate is arranged in each sinking groove, an adjusting bolt is rotationally installed at the bottom end of the interior of each sinking groove, the adjusting bolts penetrate into the sinking grooves from the bottom end of the base, and the bottom ends of the lifting top plates are in threaded connection with the adjusting bolts. A lifting top plate is arranged in each sinking groove, the distance between the lifting top plate and the top face of the base can be adjusted through an adjusting bolt penetrating through the base, namely, the depth of the sinking grooves is adjusted, the position of the lifting top plate can be fixed through the adjusting bolt after the position is adjusted, and a pressing part of an elastic piece can be well attached to and press a to-be-welded product; the welding jig can adapt to welding work of chips with different thicknesses, and the chips with different thicknesses can be stably clamped.

Description

Technical Field

[0001] The utility model relates to the technical field of welding jigs, in particular to a welding jig for a wire bonding machine. Background Art

[0002] In the electronic manufacturing industry, the welding jig of the wire bonding machine, as a key auxiliary device, plays a crucial role in improving the welding accuracy, ensuring the welding quality and enhancing the production efficiency. With the increasing miniaturization and precision of electronic products, the requirements for the welding process are also getting higher and higher.

[0003] At present, most of the welding jigs of wire bonding machines on the market adopt simple mechanical fixing methods. However, since the depth of the sinking grooves on the welding base is fixed, when the chips to be welded are installed in the sinking grooves, they need to protrude 0.6 - 1 mm from the welding base to ensure the clamping stability of the elastic pieces. Therefore, the existing welding jigs have a low adaptability to chips of different thicknesses and cannot all achieve stable clamping. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a welding jig for a wire bonding machine, which can form stable clamping during chip welding.

[0005] The utility model provides a welding jig for a wire bonding machine, including a cover plate, elastic pieces and a base. The elastic pieces are clamped between the cover plate and the base. A plurality of sinking grooves are arranged in an array at the top end of the base. Openings corresponding to the sinking grooves are formed on the cover plate and the elastic pieces. Pressing parts are symmetrically arranged at each opening on the elastic pieces; a lifting top plate is arranged in each sinking groove. An adjusting bolt is rotatably installed at the bottom end inside the sinking groove. The adjusting bolt penetrates from the bottom end of the base into the sinking groove, and the bottom end of the lifting top plate is in threaded connection with the adjusting bolt.

[0006] Further, the pressing part is of a trapezoidal structure and is integrally formed with the elastic piece.

[0007] Further, plug-in parts are symmetrically arranged on both sides of the base, and the thickness of the plug-in parts is less than the thickness of the base.

[0008] Further, positioning notch holes are symmetrically formed on both sides of the cover plate and both sides of the elastic pieces, and positioning protrusions corresponding to the two positioning notch holes are symmetrically arranged on the base.

[0009] Further, the minimum distance between the two positioning protrusions is equal to the minimum distance between the two positioning notch holes.

[0010] Further, a connecting part is arranged on the base, and a connecting hole for installing a handle is formed on the side surface of the connecting part.

[0011] Further, a positioning groove is formed at the bottom end of the base on the side away from the connecting portion.

[0012] Further, a plurality of fixing holes are formed in the elastic piece, and threaded holes corresponding to the fixing holes are formed in the cover plate.

[0013] Further, avoidance holes are provided on the base at positions corresponding to each fixing hole on the elastic piece.

[0014] Further, the cover plate, the elastic piece and the base are all made of copper material.

[0015] The beneficial effect of this technical solution is that by arranging a lifting top plate in each sinking groove, the distance between the lifting top plate and the top surface of the base can be adjusted through the adjusting bolt penetrating the base, that is, the depth of the sinking groove is adjusted. After adjusting the position, the adjusting bolt can fix the position of the lifting top plate, so that the pressing portion of the elastic piece can well fit and press the product to be welded, enabling the welding jig to adapt to the welding work of chips with different thicknesses and stably clamping chips with different thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is a schematic exploded view of the present invention.

[0018] Figure 2 It is a schematic overall structure view of the present invention.

[0019] Figure 3 It is a schematic structure view of the sinking groove part in the base of the present invention.

[0020] Figure 4 It is another schematic overall structure view of the present invention.

[0021] Description of the reference numerals: 1 - cover plate, 2 - elastic piece, 201 - pressing portion, 3 - base, 301 - sinking groove, 4 - fixing hole, 5 - threaded hole, 6 - positioning notch, 7 - positioning protrusion, 8 - connecting portion, 9 - lifting top plate, 10 - adjusting bolt, 11 - spring, 12 - positioning groove, 13 - connecting hole, 14 - inserting portion, 15 - avoidance hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The technical solution of the present utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0023] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model.

[0024] In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present utility model, "a plurality" means two or more, unless otherwise specifically defined. In addition, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0025] Embodiment 1

[0026] As Figures 1 - 4As shown in the figure, the utility model provides a welding fixture for a wire bonding machine, which includes a cover plate 1, a spring piece 2 and a base 3. The cover plate 1, the spring piece 2 and the base 3 are all made of copper material. The copper material has high thermal conductivity and can achieve rapid heat dissipation of the welded product. Secondly, the spring piece 2 is made of copper material and can have good toughness. After repeated heating and multiple pressings, the spring piece 2 can still maintain good tension and keep the pressing force on the product. The spring piece 2 is clamped between the cover plate 1 and the base 3. A plurality of sinking grooves 301 are arranged in an array at the top end of the base 3. Openings corresponding to the sinking grooves 301 are provided on the cover plate 1 and the spring piece 2. Pressing parts 201 are symmetrically arranged at each opening on the spring piece 2. The pressing parts 201 are trapezoidal structures and are integrally formed with the spring piece 2. A lifting top plate 9 is arranged in each sinking groove 301. The cross-sectional shape of the lifting top plate 9 is exactly the same as the cross-sectional shape of the sinking groove 301. An adjusting bolt 10 is rotatably installed at the bottom end inside the sinking groove 301. The adjusting bolt 10 penetrates from the bottom end of the base 3 into the sinking groove 301. The bottom end of the lifting top plate 9 is threadedly connected with the adjusting bolt 10, and the depth of the sinking groove 301 is adjusted through threaded cooperation. A spring 11 can be arranged between the bottom end of the lifting top plate 9 and the bottom surface of the sinking groove 301 to assist in supporting the lifting top plate 9. The spring 11 is arranged outside the adjusting bolt 10.

[0027] Insertion parts 14 are symmetrically arranged on both sides of the base 3. The thickness of the insertion parts 14 is less than the thickness of the base 3. The insertion parts 14 are provided for installing the base 3 at the working station of the wire bonding machine.

[0028] Positioning notch holes 6 are symmetrically opened on both sides of the cover plate 1 and both sides of the spring piece 2. Positioning protrusions 7 corresponding to the two positioning notch holes 6 are symmetrically arranged on the base 3. The minimum distance between the two positioning protrusions 7 is equal to the minimum distance between the two positioning notch holes 6. The positioning protrusions 7 on the base 3 are used to cooperate with the positioning notch holes 6 on the spring piece 2 and the cover plate 1 for positioning, which is convenient for the installation of the cover plate 1 and the spring piece 2.

[0029] A plurality of fixing holes 4 are opened on the spring piece 2. Threaded holes 5 corresponding to the fixing holes 4 are opened on the cover plate 1. During installation, first fix the spring piece 2 and the cover plate 1 with M2 screws. The head of the M2 screw is located on one side of the spring piece 2. The threaded hole 5 on the cover plate 1 is used to cooperate with the M2 screw. Corresponding avoidance holes 15 are provided on the base 3 at the positions corresponding to each fixing hole 4 on the spring piece 2 for avoiding the head of the M2 screw.

[0030] A connecting part 8 is arranged on the base 3. A connecting hole 13 for installing a handle is opened on the side surface of the connecting part 8. A positioning groove 12 is opened at the bottom end on the side of the base 3 away from the connecting part 8. When the base 3 is inserted into the working station of the wire bonding machine, it cooperates with the positioning pin on the working station of the wire bonding machine. During the process of inserting the positioning pin into the base 3, the positioning groove 12 cooperates with the positioning pin to realize the auxiliary positioning of the base 3.

[0031] In this technical solution, a lifting top plate 9 is provided in each sinking groove 301. The distance between the lifting top plate 9 and the top surface of the base 3 can be adjusted by the adjusting bolt 10 passing through the base 3, that is, the depth of the sinking groove 301 is adjusted. After the position is adjusted, the adjusting bolt 10 can fix the position of the lifting top plate 9, so that the pressing part 201 of the elastic sheet 2 can fit and press the product to be welded well, enabling the welding jig to adapt to the welding work of chips with different thicknesses and stably clamping chips with different thicknesses.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A soldering fixture for a wire bonding machine, characterized in that It includes a cover plate, a shrapnel and a base. The shrapnel is clamped between the cover plate and the base. A plurality of sinking grooves are arranged in an array at the top end of the base. Openings corresponding to the sinking grooves are formed on the cover plate and the shrapnel. Pressing parts are symmetrically arranged at each opening on the shrapnel; A lifting top plate is arranged in each sinking groove. An adjusting bolt is rotatably installed at the bottom end inside the sinking groove. The adjusting bolt penetrates from the bottom end of the base into the sinking groove. The bottom end of the lifting top plate is threadedly connected with the adjusting bolt.

2. The soldering jig for a wire bonding machine according to claim 1, wherein, The pressing part is of a trapezoidal structure and is integrally formed with the shrapnel.

3. The welding jig for a wire bonder according to claim 1, characterized in that, Insertion parts are symmetrically arranged on both sides of the base. The thickness of the insertion part is less than the thickness of the base.

4. The welding jig for a wire bonding machine according to claim 1, characterized in that, Positioning notches are symmetrically formed on both sides of the cover plate and both sides of the shrapnel. Positioning protrusions corresponding to the two positioning notches are symmetrically arranged on the base.

5. The soldering jig for a wire bonding machine according to claim 4, wherein, The minimum distance between the two positioning protrusions is equal to the minimum distance between the two positioning notches.

6. The welding jig for a wire bonding machine according to claim 1, wherein A connecting part is arranged on the base. A connecting hole for installing a handle is formed on the side surface of the connecting part.

7. The soldering jig for a wire bonding machine according to claim 6, wherein, A positioning groove is formed at the bottom end of the base on the side far from the connecting part.

8. The welding jig for a wire bonding machine according to claim 1, wherein, A plurality of fixing holes are formed on the shrapnel. Threaded holes corresponding to the fixing holes are formed on the cover plate.

9. The welding jig for a wire bonder according to claim 8, wherein, Avoidance holes are arranged on the base at positions corresponding to each fixing hole on the shrapnel.

10. The welding jig for a wire bonder according to claim 1, characterized in that, The cover plate, the shrapnel and the base are all made of copper material.

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