Plane wire welding mechanism

Abstract

The embodiment of the utility model provides a planar wire welding mechanism, which is used for wire welding of TO products and comprises a clamp unit for loading the TO products and a pressing plate unit for pressing the clamp unit. The clamp unit comprises a clamp body, when TO products are installed on the side face of the clamp body, a certain angle is formed between a welding head, a lead, a laser and other target wire welding pieces, planar wire welding work is completed, the clamp unit is pressed through cooperation of a pressing plate body and a pressing assembly, and position deviation of the clamp unit in the wire welding process is prevented. The planar bonding wire is simple in structure, compatible with products of multiple specifications, convenient to operate and low in cost.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of optical communication manufacturing, especially relates to a plane wire welding mechanism. BACKGROUND

[0002] TO (Transistor Outline) is a kind of transistor package, aiming at enabling lead to be formed and used for surface mounting. With the application of transistor, TO wire welding technology also begins to accelerate development. TO product is composed of a TO tube seat and a TO cap, the TO tube seat provides power supply for the base of packaged components, and the cap can realize smooth optical signal transmission. In addition, TO series products are various, and the length of lead, substrate, laser and other positions and shapes on TO tube seat and TO cap are different, and when welding, lead and components such as laser need to be welded with each other.

[0003] At present, for different specifications of TO products, when the welding head is welded between lead and laser, the welding head and the target welding parts such as lead and laser to be welded do not form a certain angle, which leads to the inability to directly complete the welding work, so the overturning welding mode is generally adopted, but the overturning welding cannot be compatible with multiple different specifications of products, has the problems of singleness and high cost.

[0004] Therefore, how to change the existing technology to realize the welding of multiple different specifications of products by plane welding is a problem to be solved by the person skilled in the art. UTILITY MODEL CONTENT

[0005] The utility model provides a kind of plane wire welding mechanism, to solve the problems existing in the prior art described above, by plane welding mode, compatible multiple different specifications of products, low cost.

[0006] To solve the above problems, the technical scheme adopted by the utility model is:

[0007] The utility model provides a kind of plane wire welding mechanism, for TO product wire welding, including the clamp unit of loading the TO product, the pressing plate unit of pressing the clamp unit;The clamp unit includes clamp body, and the TO product is placed on the upper side of the clamp body.

[0008] Preferably, the inner periphery of the positioning groove is provided with at least one positioning protrusion or positioning groove.

[0009] Further, the inner periphery of the positioning groove is provided with at least one positioning protrusion or positioning groove.

[0010] Further, the positioning protrusion or positioning groove is symmetrically arranged or centrally symmetrically arranged.

[0011] Further, the limiting assembly comprises a first fixed block, a second fixed block fixed on the first fixed block, and an elastic sheet on a side surface adjacent to a mounting surface of the second fixed block; the limiting assembly is fixedly mounted on the first fixed block on a side surface of the positioning groove; the elastic sheet surrounds the opening part of the positioning groove, and the second fixed block is in contact with the substrate of the TO product.

[0012] Further, the clamp unit further comprises a mounting seat, and the clamp body is positioned and mounted on the mounting seat.

[0013] Further, the pressing plate unit comprises a pressing plate body and a pressing assembly for pressing the pressing plate body, and the pressing plate body is arranged above the clamp unit and applies a pressing force to the clamp unit.

[0014] Further, the pressing assembly comprises a mechanical arm and a connecting part, the connecting part fixedly connects the mechanical arm and the pressing plate body, and a wire bonding window is arranged in a central region of the pressing plate body.

[0015] Further, the connecting part comprises a pressing piece and a connecting piece, two ends of the connecting piece are connected with the mechanical arm and the pressing plate body respectively, one end of the pressing piece is fixedly connected with the connecting piece, and the other end is a free end and extends to the side where the pressing body is located.

[0016] Further, a rotating piece is mounted on the connecting piece, the rotating piece has a cam structure, the rotating piece is located below the pressing piece, the pressing plate body vertically slides on the connecting piece, the free end of the pressing piece is in contact with the pressing plate body, and the cam structure can lift the free end of the pressing piece upward and separate the free end from the pressing plate body by rotating the rotating piece.

[0017] Compared with the prior art, the plane wire bonding mechanism has the following beneficial effects:

[0018] The plane wire bonding mechanism provided by the utility model has the following beneficial effects: the TO product is mounted on the side surface of the clamp body, the welding head and the lead wire have a certain angle with the target wire bonding part such as a laser, the plane wire bonding work is completed, the clamp unit is prevented from being deviated in the wire bonding process by the cooperation of the pressing plate body and the pressing assembly, the plane wire bonding structure is simple, compatible with products of multiple specifications, convenient to operate, and low in cost. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the present application, the following will be described in detail in conjunction with the embodiments and drawings. It should be understood that the drawings described below are only some embodiments of the present application, and those skilled in the art can make changes to these drawings under the concept of the present application without creative labor.

[0020] Figure 1 An assembly perspective view of the planar wire bonding mechanism provided by the present application is provided.

[0021] Figure 2 An assembly perspective view of the clamp unit provided by the present application is provided.

[0022] Figure 3 An assembly perspective view of the clamp body provided by the present application is provided.

[0023] Figure 4 A partial assembly perspective view of the clamp unit provided by the present application is provided.

[0024] Figure 5 An assembly perspective view of the pressing plate unit provided by the present application is provided.

[0025] Figure 6 An assembly perspective view of the TO product provided by the present application is provided.

[0026] 1, TO product; 11, substrate; 12, lead wire; 13, laser; 2, pressing plate unit; 21, pressing plate body; 211, wire bonding window; 22, mechanical arm; 23, connecting part; 231, rotating part; 232, connecting part; 233, pressing part; 234, ball guide sleeve; 3, clamp unit; 31, clamp body; 311, through hole; 312, positioning groove; 313, second positioning hole; 314, second fixing hole; 32, first fixing block; 33, second fixing block; 34, elastic sheet; 35, mounting seat. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the embodiments described below are only some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] It should be understood that, when used in the present specification and the appended claims, the terms "comprise" and "include" indicate the presence of the described features, integers, steps, operations, elements, and / or components, but do not exclude one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0029] It should also be understood that the terms used in the description of the present application are merely for the purpose of describing particular embodiments and are not intended to limit the present application. As used in the description of the present application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0030] Please refer to Figure 1 The present application provides a kind of plane wire bonding mechanism, including the clamp unit 3 of loading TO product 1, the pressing plate unit 2 of pressing clamp unit 3. Among them, TO product 1 mainly includes lead 12, substrate 11, laser 13 and other components, wherein, when welding, multiple leads 12 are connected between laser 13.

[0031] Please refer to Figure 2 And Figure 3 In the present embodiment, the jig body 31 includes a row of positioning grooves 312, and at least one positioning protrusion or positioning groove is arranged on the inner circumferential surface of the positioning groove 312. The positioning protrusion or the positioning groove can be preferably arranged symmetrically or centrally symmetrically to be able to be positioned with the protrusions or recesses of various TO products 1. The TO product 1 is clamped into the positioning groove 312, and each positioning protrusion or positioning groove of the positioning groove 312 is matched with the corresponding recess and protrusion on the TO product 1 to realize limiting, so as to ensure that the laser 13 and the lead 12 can have accurate orientation.

[0032] Please refer to Figure 4 And Figure 6In the embodiment, the first fixing block 32 is a long and straight rectangular strip structure, and a plurality of grooves are uniformly distributed on the first fixing block 32. After the TO product 1 is clamped into the positioning groove 312, the second fixing block 33 is fixed on the bottom surface of the groove of the first fixing block 32 by a screw, the spring piece 34 is fixed on the side surface of the first fixing block 32 adjacent to the bottom surface of the groove and perpendicular to the bottom surface of the groove, and then the first fixing block 32 is attached to the fixture body 31 on the end surface where the positioning groove 312 is located. After the screw is inserted into the threaded hole (not shown in the figure) on the first fixing block 32 through the through hole 311 provided on the fixture body 31, the first fixing block 32 and the fixture body 31 are fixedly connected. At this time, the first fixing block 32 is located in front of the fixture body 31, the spring piece 34 is close to and surrounds the opening part of the positioning groove 312 and contacts the TO product 1, and the TO product 1 is pressed tightly by the elasticity of the spring piece 34 to prevent the TO product 1 from loosening. At the same time, the second fixing block 33 abuts against the substrate 11, and the substrate 11 does not need to be welded. By abutting against the substrate 11, the TO product 1 in the positioning groove 312 is prevented from being further limited in the horizontal and vertical directions. Generally, when welding, the product is placed vertically relative to the welding head, and then the terminal product is different. Some TO products 1 cannot form an angle between the laser 13 and the lead 12 when placed vertically, so that the welding head cannot weld the laser 13 and the lead 12. Through the above structural improvement of the present application, when the TO product 1 is fixed to the fixture body 31, the welding surface of the laser 13 faces the welding head, that is, the TO product 1 is placed on one side in the positioning groove 312, and welding can be completed by the planar welding method of the present embodiment without the need for a complex overturning welding method, and a plurality of specifications of products are compatible.

[0033] The fixture body 31 loaded with the TO product 1 after the above operation is placed into the mounting seat 35, the mounting seat 35 is provided with positioning pins and first fixing holes at both ends, the fixture body 31 is provided with second positioning holes 313 and second fixing holes 314 at both ends, the positioning pins and the second positioning holes 313, the first fixing holes and the second fixing holes 314 correspond to each other, the positioning at both ends is first performed by the positioning pins and the second positioning holes 313, and the screws are threadedly connected to the first fixing holes in the second fixing holes 314 for fixation. The mounting seat 35 is provided with a track below, and the TO product 1 after welding is moved through the track to quickly position the position and direction of the TO product 1.

[0034] In the embodiment 5, the pressing plate unit 2 comprises a pressing plate body 21 and a pressing assembly which presses the pressing plate body 21, the pressing plate body 21 is arranged above the clamp unit 3 and applies a downward pressure to the clamp unit 3, so as to prevent the clamp body 31 from being expanded due to heat during the wire bonding process and affecting the wire bonding precision. The pressing assembly comprises a mechanical arm 22 and a connecting part 23, the connecting part 23 fixedly connects the mechanical arm 22 and the pressing plate body 21, the center region of the pressing plate body 21 is provided with a wire bonding window 211, the wire bonding head performs wire bonding within the range of the wire bonding window 211, after the wire bonding of the first section of TO products 1 in the wire bonding window 211 is completed, the next section of TO products 1 is moved within the range of the wire bonding window 211 through the track and the mounting seat 35 moves in the transverse direction.

[0035] In the embodiment, the connecting part 23 comprises a rotating part 231, a pressing part 233, a ball bearing 234 and two connecting parts 232, the connecting parts 232 are symmetrically arranged at the two ends of the pressing plate body 21, and the two ends of the connecting part 232 are respectively connected with the mechanical arm 22 and the pressing plate body 21, so as to realize the connection between the pressing plate body 21 and the mechanical arm 22. Specifically, the pressing part 233 is arranged above the connecting part 232, one end of the pressing part 233 is fixedly connected with the connecting part 232, and the other end is a free end which extends towards the direction of the pressing plate body 21, the end of the pressing plate body 21 is located between the connecting part 232 and the pressing part 233, and a guide column is preferably arranged on the connecting part 232, the pressing plate body 21 is provided with a mounting hole at the end, and the ball guide sleeve 234 is arranged in the mounting hole, the two ends of the pressing plate body 21 are vertically slidably arranged in the gap between the ball bearing 234 and the connecting part 232 through the ball guide sleeve 234; the rotating part 231 is arranged on the connecting part 232, the rotating part 231 is a cam structure, of course, the rotating part 231 also has a rotating handle which drives the cam structure to rotate, and the rotating part 231 is located below the pressing part 233. Rotating the handle of the rotating part 231 can drive the cam structure to rotate, when the high point position of the cam structure is rotated to contact the bottom surface of the pressing part 233, and further rotates, the free end of the pressing part 233 is lifted upward, the downward pressure of the pressing part 233 on the pressing plate body 21 is released, and the pressing plate body 21 can be lifted upward along the axis of the ball guide sleeve 234 for removal, so as to realize rapid installation and disassembly. When the rotating part 231 is rotated to the low point position, the free end of the pressing part 233 presses the pressing plate body 21 downward, so that the pressing plate body 21 is pressed on the mounting seat 35, thereby preventing the mounting seat 35 from being deformed due to heat during the welding process. Preferably, the pressing part 233 is a metal spring piece which has a set thickness and elasticity, and the downward pressure required in the specific use process is adaptively selected, which will not be described here.

[0036] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present specification.

[0037] The above is a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the present application, and these modifications or replacements should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A flat wire bonding mechanism for wire bonding of TO products, characterized by, The device comprises a clamp unit for loading the TO product, and a pressing plate unit for pressing the clamp unit; the clamp unit comprises a clamp body, the TO product is placed on the upper side of the clamp body, the clamp body comprises a positioning groove and a limiting assembly, the TO product is embedded in the positioning groove, and the limiting assembly limits the TO product in the positioning groove.

2. The planar wire bonding mechanism of claim 1, wherein, At least one positioning protrusion or positioning groove is arranged on the inner circumferential surface of the positioning groove.

3. The planar wire bonding mechanism of claim 2, wherein, The positioning protrusion or positioning groove is symmetrically arranged or centrally symmetrically arranged.

4. The planar wire bonding mechanism of claim 1, wherein, The limiting assembly comprises a first fixed block, a second fixed block fixed on the first fixed block, and a spring piece on the side surface adjacent to and perpendicular to the mounting surface of the second fixed block; the limiting assembly is fixedly mounted on the first fixed block and on the side surface of the side where the positioning groove is located; the spring piece surrounds the opening part of the positioning groove, and the second fixed block is in contact with the substrate of the TO product.

5. The planar wire bonding mechanism of claim 1, wherein, The clamp unit further comprises a mounting seat, and the clamp body is positioned and mounted on the mounting seat.

6. The planar wire bonding mechanism of claim 1, wherein, The pressing plate unit comprises a pressing plate body and a pressing assembly for pressing the pressing plate body, and the pressing plate body is arranged above the clamp unit and applies a downward pressure to the clamp unit.

7. The planar wire bonding mechanism of claim 6, wherein, The pressing assembly comprises a mechanical arm and a connecting part, the connecting part fixedly connects the mechanical arm and the pressing plate body, and the center region of the pressing plate body is provided with a wire welding window.

8. The planar wire bonding mechanism of claim 7, wherein, The connecting part comprises a pressing piece and a connecting piece, the two ends of the connecting piece are respectively connected with the mechanical arm and the pressing plate body; one end of the pressing piece is fixedly connected with the connecting piece, and the other end is a free end and extends to the side where the pressing body is located.

9. The planar wire bonding mechanism of claim 8, wherein, A rotating piece is mounted on the connecting piece, the rotating piece has a cam structure; the rotating piece is located below the pressing piece; the pressing plate body vertically slides on the connecting piece, the free end of the pressing piece is in contact with the pressing plate body, and rotating the rotating piece can make the free end of the pressing piece be lifted upward and separated from the pressing plate body by the cam structure.

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