CN212694139U

CN212694139U - Automatic focusing module of wire bonding machine vision system

Info

Publication number: CN212694139U
Application number: CN202022278486.9U
Authority: CN
Inventors: 张天山; 袁文武; 马维民
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-14
Filing date: 2020-10-14
Publication date: 2021-03-12
Anticipated expiration: 2030-10-14

Abstract

The utility model discloses a wire bonder vision system auto focus module, including reciprocal anchorage's base and housing, both form an accommodating space, be equipped with mobilizable optical lens in the accommodating space, the fixed linear electric motor that is provided with on the housing, linear electric motor's motor shaft stretches into in the accommodating space and fixed through a connecting piece optical lens, the inner wall symmetry of housing is provided with two gibs, the connecting piece quilt simultaneously two spacing direction of gib s. The utility model discloses technical scheme's advantage mainly embodies: the movement of the optical lens is more stable by adopting bilateral guidance; the semicircular groove is matched with the lug, so that the guiding error is further reduced; the connecting piece is in surface contact with the optical lens, so that the movement deviation of the optical lens driven by the vibration of the wire bonding machine is prevented.

Description

Automatic focusing module of wire bonding machine vision system

Technical Field

The utility model belongs to the technical field of full-automatic welding wire machine and specifically relates to a welding wire machine vision system auto focus module.

Background

The full-automatic wire welding machine is characterized in that the full-automatic wire welding machine integrates computer control, motion control, image processing, network communication, a very complex light, mechanical and electrical integration device is formed by a plurality of high-difficulty XYZ platforms, high response is required for the device, low vibration, high efficiency, a stable ultrasonic output and ignition system and high-precision image capture are required, welding materials are subjected to full-automatic circular welding through a full-automatic feeding and discharging system, and the full-automatic circular welding machine is widely applied to the production of Light Emitting Diodes (LED) in current, SMD (surface mounted device) patches, high-power LEDs, triodes, nixides (DIGITAL DISPLAY), dot matrix boards (DOTRIX), backlight sources (LED BACKIGHT), IC soft package (COB) CCD modules and inner lead welding of some special semiconductors.

Because the existing circuit boards all adopt a multilayer structure, the vision system of the wire bonding machine needs to carry out automatic focusing when each layer of welding substrates is replaced. The automatic focusing module adopted at present is insufficient in precision, so that errors generated by a welding machine are larger, and the requirement of high precision is not met.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a welding wire machine vision system auto focus module in order to solve the above-mentioned problem that exists among the prior art.

The purpose of the utility model is realized through the following technical scheme:

the utility model provides a wire bonding machine vision system auto focus module, includes reciprocal fixed base and housing, and both form an accommodating space, be equipped with mobilizable optical lens in the accommodating space, the fixed linear electric motor that is provided with on the housing, linear electric motor's motor shaft stretches into in the accommodating space and fixed through a connecting piece optical lens, the inner wall symmetry of housing is provided with two gibs, the connecting piece quilt simultaneously two spacing direction of gib s.

Preferably, the connecting piece has two extending plates parallel to each other, and each of them is fixed with a guide block outwards, and the guide blocks are connected with the guide bars in a sliding manner.

Preferably, the guide block is clamped on the guide strip in a C shape.

Preferably, the guide strip is provided with an axially extending semicircular groove, and the guide block is provided with a semicircular lug matched with the guide strip.

Preferably, the connecting piece comprises a pin hole used for being fixedly connected with the optical lens and a platform which is in surface contact with the optical lens for limiting.

Preferably, the connecting member further includes a connecting rod fixed to the motor shaft.

Preferably, a displacement sensor is further arranged on the connecting piece, and the displacement sensor is arranged on one of the extension plates of the connecting piece.

The utility model discloses technical scheme's advantage mainly embodies: the movement of the optical lens is more stable by adopting bilateral guidance; the semicircular groove is matched with the lug, so that the guiding error is further reduced; the connecting piece is in surface contact with the optical lens, so that the movement deviation of the optical lens driven by the vibration of the wire bonding machine is prevented.

Drawings

Fig. 1 is a schematic structural view of an automatic focusing module of a wire bonding machine vision system of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 with the cover removed;

fig. 3 is a schematic structural view of the connecting member of the present invention;

fig. 4 is a schematic structural diagram of the optical lens of the present invention.

Detailed Description

Objects, advantages and features of the present invention will be illustrated and explained by the following non-limiting description of preferred embodiments. These embodiments are merely exemplary embodiments for applying the technical solutions of the present invention, and all technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the scope of the present invention.

In the description of the embodiments, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the embodiment, the operator is used as a reference, and the direction close to the operator is a proximal end, and the direction away from the operator is a distal end.

The following describes the wire bonder vision system auto-focusing module in detail with reference to the accompanying drawings, and as shown in the preferred embodiment of fig. 1 to 4, the wire bonder vision system auto-focusing module includes a base 1 and a housing 2 fixed to each other, and both form an accommodation space.

The housing 2 is fixedly provided with a linear motor 4, and a motor shaft 6 of the linear motor 4 extends into the accommodating space and fixes an optical lens 3 through a connecting piece 5. The axial movement of the motor shaft 6 drives the optical lens 3 to move axially in the accommodating space.

The inner wall symmetry of housing 2 is provided with two gibs 7, connecting piece 5 is simultaneously by the spacing direction of two gibs 7. Preferably, the connecting element 5 comprises a body having two parallel extension plates 15, on each of which a guide block 8 is fixed outwards, the guide blocks 8 being slidably connected to the guide bars 7. The guide block 8 is arranged on the guide strip 7 in a C-shaped clamping mode. The guide strip 7 is provided with an axially extending semicircular groove 9, and the guide block 8 is provided with a semicircular lug 10 matched with the guide strip. Of course, a plurality of guide strips 7 is also possible. In the preferred embodiment, the optical lens 3 is arranged between the two guide strips 7, so that the movement of the optical lens 3 is more stable.

As shown in fig. 3 and 4, the connecting member 5 includes a pin hole 11 for fixedly connecting with the optical lens 3, and a platform 12 for limiting surface contact with the optical lens 3. The connecting piece 5 is in surface contact with the optical lens 3, so that the movement deviation of the optical lens driven by the vibration of the wire bonding machine can be prevented.

The connecting piece 5 further comprises a connecting rod 14 fixed with the motor shaft 6. The connecting piece 5 is also provided with a displacement sensor 13, and the displacement sensor 13 is arranged on one of the extension plates 15 of the connecting piece 5. When the connecting member 5 moves, i.e. the optical lens 3 moves, its movement record can be recorded by the displacement sensor 13.

The utility model has a plurality of implementation modes, and all technical schemes formed by adopting equivalent transformation or equivalent transformation all fall within the protection scope of the utility model.

Claims

1. Welding wire machine vision system auto focus module, including reciprocal anchorage's base (1) and housing (2), both form an accommodation space, be equipped with mobilizable optical lens (3), its characterized in that in the accommodation space: the optical lens packaging structure is characterized in that a linear motor (4) is fixedly arranged on the housing (2), a motor shaft (6) of the linear motor (4) extends into the accommodating space and is fixed to the optical lens (3) through a connecting piece (5), two guide strips (7) are symmetrically arranged on the inner wall of the housing (2), and the connecting piece (5) is simultaneously limited and guided by the two guide strips (7).

2. The wire bonding machine vision system auto-focus module of claim 1, wherein: the connecting piece (5) is provided with two extending plates (15) which are parallel to each other, a guide block (8) is fixed outwards on each extending plate, and the guide blocks (8) are connected with the guide strips (7) in a sliding mode.

3. The wire bonding machine vision system auto-focus module of claim 2, wherein: the guide block (8) is arranged on the guide strip (7) in a C-shaped clamping manner.

4. The wire bonding machine vision system auto-focus module of claim 3, wherein: the guide strip (7) is provided with an axially extending semicircular groove (9), and the guide block (8) is provided with a semicircular lug (10) matched with the guide strip.

5. The wire bonding machine vision system auto-focus module of any one of claims 1 to 4, wherein: the connecting piece (5) comprises a pin hole (11) used for being fixedly connected with the optical lens (3) and a platform (12) which is in surface contact with and limited by the optical lens (3).

6. The wire bonding machine vision system auto-focus module of claim 5, wherein: the connecting piece (5) also comprises a connecting rod (14) fixed with the motor shaft (6).

7. The wire bonding machine vision system auto-focus module of claim 5, wherein: still be provided with displacement sensor (13) on connecting piece (5), displacement sensor (13) set up one of them extension board (15) of connecting piece (5).