Probe welding automatic remodeling mechanism

Abstract

The invention relates to an automatic remodeling mechanism for probe welding. The automatic remodeling mechanism comprises an equipment base and a welding laser assembly. A welding Y-axis module is installed on the equipment base, a welding X-axis module is installed on the welding Y-axis module, a welding rotating platform is installed on the welding X-axis module, and a probe disc to be welded is installed on the welding rotating platform. According to the invention, a scheme of adding a high-precision motion shaft to the welding clamping assembly is adopted, the working position of the clamping mechanism can be automatically switched according to the specification of the probe, and the motion shafts of the visual positioning system and the welding system are matched to automatically carry out parameter fine adjustment.

Description

Technical Field

[0001] The present invention relates to the technical field related to chip testing industry, and in particular to an automatic mold changing mechanism for probe welding. Background Art

[0002] In the chip testing industry, as the integration of chips increases, the spacing of test probes continues to shrink, and the center distance has reached 50 microns or even smaller. The corresponding probe welding equipment and clamping mechanism are subject to material limitations and cannot maintain rigidity at a thickness of 20 to 30 microns. Therefore, in this welding process, probes of different lengths are widely used to keep the detection needle tip consistent, and probes of different lengths are welded at intervals to leave a size margin for the probe welding clamping mechanism.

[0003] Existing welding equipment either cannot realize the long and short probe interval welding function, or requires manual adjustment of the corresponding welding and visual mechanisms to switch between long and short probes, which is relatively inefficient.

[0004] In view of the above-mentioned defects, the designer actively carried out research and innovation in order to create an automatic mold changing mechanism for probe welding to make it more valuable for industrial use. Summary of the invention

[0005] In order to solve any of the above technical problems, the purpose of the present invention is to provide an automatic mold changing mechanism for probe welding.

[0006] To achieve the above object, the present invention adopts the following technical solution:

[0007] Probe welding automatic changeover mechanism, including equipment base and welding laser assembly;

[0008] A welding Y-axis module is installed on the equipment base, a welding X-axis module is installed on the welding Y-axis module, a welding rotating platform is installed on the welding X-axis module, and a probe plate to be welded is installed on the welding rotating platform;

[0009] A positioning camera Z-axis module is installed on the positioning camera gantry on the equipment base on the side of the probe plate to be welded along the positive direction of the Y-axis, and a positioning camera is installed on the positioning camera Z-axis module;

[0010] A clamping assembly X-axis module is installed on the welding clamping gantry on the equipment base on the negative side of the probe disk to be welded along the Y-axis, a clamping assembly Z-axis module is installed on the clamping assembly X-axis module, a clamping assembly Y-axis module is installed on the clamping assembly Z-axis module, and a welding clamping assembly is installed on the clamping assembly Y-axis module;

[0011] A welding Z-axis module is installed on a welding gantry on a device base on the negative side of the probe disk to be welded along the X-axis, and a welding laser assembly is installed on the welding Z-axis module.

[0012] As a further improvement of the present invention, the welding laser assembly includes a welding Z-axis connecting plate connected to the welding Z-axis module, a welding Y-axis electric slide is installed on the welding Z-axis connecting plate, a welding X-axis electric slide is installed on the welding Y-axis electric slide, a laser head mounting frame is installed on the welding X-axis electric slide, a manual rotating table is installed on the laser head mounting frame, and a welding head is installed on the manual rotating table.

[0013] As a further improvement of the present invention, the welding clamping assembly includes a clamping Y-axis connecting plate connected to the Y-axis module of the clamping assembly, a clamping jaw mounting plate is installed on the clamping Y-axis connecting plate, a fixed clamping jaw is installed on the clamping jaw mounting plate along the positive direction of the X-axis through a fixed clamping jaw seat, and a movable clamping jaw is installed on the clamping jaw mounting plate along the negative direction of the X-axis through a movable clamping jaw seat.

[0014] As a further improvement of the present invention, a movable jaw driving cylinder is installed on the jaw mounting plate on one side of the movable jaw seat along the positive direction of the X-axis, and the movable jaw driving cylinder drives the movable jaw seat to move in the X-axis direction.

[0015] As a further improvement of the present invention, a differential head is installed on the clamping jaw mounting plate on one side of the top of the movable clamping jaw seat through a differential head seat, and the differential head is distributed along the X-axis direction.

[0016] As a further improvement of the present invention, at least one clamping jaw limiting block is installed on the clamping jaw mounting plate on one side of the movable clamping jaw seat along the negative direction of the X-axis.

[0017] As a further improvement of the present invention, at least one clamping jaw stopper is installed on the clamping jaw mounting plate on one side of the movable clamping jaw seat along the positive direction of the X-axis.

[0018] By means of the above scheme, the present invention has at least the following advantages:

[0019] The present invention adopts a solution of adding a high-precision motion axis to the welding clamping assembly, which can automatically switch the working position of the clamping mechanism according to the probe specifications, and cooperate with the visual positioning system to automatically fine-tune the parameters of each motion axis of the welding system.

[0020] The present invention realizes the welding production function of automatically switching the probe model without manual intervention, greatly reduces the production debugging time, eliminates the influence of human factors, and effectively ensures the stability of welding accuracy.

[0021] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 It is a structural schematic diagram of an automatic mold changing mechanism for probe welding of the present invention;

[0024] Figure 2 yes Figure 1 Schematic diagram of the structure of the welding laser assembly;

[0025] Figure 3 yes Figure 1 A schematic diagram of the structure of the welding clamping assembly;

[0026] Figure 4 is a schematic diagram of the first stage of processing of the present invention;

[0027] Figure 5 is a schematic diagram of the second stage of processing of the present invention;

[0028] Figure 6 It is a schematic diagram of the third stage of processing of the present invention.

[0029] The meanings of the various reference numerals in the figures are as follows.

[0030] Equipment base 1, welding Y-axis module 2, welding X-axis module 3, welding rotating platform 4, probe disk to be welded 5, welding laser assembly 6, positioning camera 7, positioning camera Z-axis module 8, welding Z-axis module 9, welding clamping assembly 10, clamping assembly Y-axis module 11, clamping assembly Z-axis module 12, clamping assembly X-axis module 13, welding Z-axis connecting plate 14, welding Y-axis electric slide 15, welding X-axis electric slide 16, laser head mounting frame 17, manual rotating table 18, welding head 19, clamping Y-axis connecting plate 20, clamping jaw mounting plate 21, movable clamping jaw driving cylinder 22, movable clamping jaw seat 23, movable clamping jaw 24, fixed clamping jaw seat 25, fixed clamping jaw 26, differential head 27, differential head seat 28, clamping jaw limit block 29, clamping jaw stop block 30, short probe 31, long probe 32. DETAILED DESCRIPTION

[0031] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0032] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, rather than all the embodiments. The components of the embodiment of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiment of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present invention.

[0033] like Figure 1 to Figure 6 As shown, a probe welding automatic mold changing mechanism includes an equipment base 1 and a welding laser component 6.

[0034] A welding Y-axis module 2 is installed on the equipment base 1 , a welding X-axis module 3 is installed on the welding Y-axis module 2 , a welding rotating platform 4 is installed on the welding X-axis module 3 , and a probe disk 5 to be welded is installed on the welding rotating platform 4 .

[0035] A positioning camera Z-axis module 8 is installed on the positioning camera gantry on the equipment base 1 on the side of the probe plate 5 to be welded along the positive direction of the Y-axis, and a positioning camera 7 is installed on the positioning camera Z-axis module 8;

[0036] A welding Z-axis module 9 is installed on the welding gantry on the equipment base 1 on the negative direction side of the probe plate 5 to be welded along the X-axis, and a welding laser assembly 6 is installed on the welding Z-axis module 9 .

[0037] The welding laser assembly 6 includes a welding Z-axis connecting plate 14 connected to the welding Z-axis module 9, a welding Y-axis electric slide 15 is installed on the welding Z-axis connecting plate 14, a welding X-axis electric slide 16 is installed on the welding Y-axis electric slide 15, a laser head mounting frame 17 is installed on the welding X-axis electric slide 16, a manual rotating table 18 is installed on the laser head mounting frame 17, and a welding head 19 is installed on the manual rotating table 18.

[0038] A clamping assembly X-axis module 13 is installed on the welding clamping gantry on the equipment base 1 on the negative side of the probe disk 5 to be welded along the Y-axis, a clamping assembly Z-axis module 12 is installed on the clamping assembly X-axis module 13, a clamping assembly Y-axis module 11 is installed on the clamping assembly Z-axis module 12, and a welding clamping assembly 10 is installed on the clamping assembly Y-axis module 11.

[0039] The welding clamping assembly 10 includes a clamping Y-axis connecting plate 20 connected to the clamping assembly Y-axis module 11, a clamping jaw mounting plate 21 is mounted on the clamping Y-axis connecting plate 20, a fixed clamping jaw 26 is mounted on the clamping jaw mounting plate 21 along one side of the positive direction of the X-axis through a fixed clamping jaw seat 25, and a movable clamping jaw 24 is mounted on the clamping jaw mounting plate 21 along one side of the negative direction of the X-axis through a movable clamping jaw seat 23. A movable clamping jaw driving cylinder 22 is mounted on the clamping jaw mounting plate 21 along one side of the positive direction of the X-axis of the movable clamping jaw seat 23, and the movable clamping jaw driving cylinder 22 drives the movable clamping jaw seat 23 to move in the X-axis direction.

[0040] A differential head 27 is mounted on the clamping jaw mounting plate 21 at one side of the top of the movable clamping jaw seat 23 via a differential head seat 28 , and the differential head 27 is distributed along the X-axis direction.

[0041] At least one clamping jaw limiting block 29 is installed on the clamping jaw mounting plate 21 on one side of the movable clamping jaw seat 23 along the negative direction of the X axis. At least one clamping jaw stopper 30 is installed on the clamping jaw mounting plate 21 on one side of the movable clamping jaw seat 23 along the positive direction of the X axis.

[0042] The relationship between the various components of the present invention is as follows:

[0043] The welding Y-axis module 2 is fixed to the equipment base 1 by screws, the welding X-axis module 3 is installed on the welding Y-axis module 2 by screws, and the welding rotating platform 4 is installed on the welding X-axis module 3 by screws. The equipment base 1 has a high verticality, parallelism and other precise positional relationship with the welding Y-axis module 2, the welding X-axis module 3, and the welding rotating platform 4. During the welding process, the probe plate 5 to be welded is firmly adsorbed on the welding rotating platform 4 by vacuum.

[0044] The positioning camera Z-axis module 8 is mounted on the positioning camera gantry of the equipment base 1 by screws and has a high vertical assembly relationship with the welding rotating platform 4. The positioning camera 7 is mounted on the positioning camera Z-axis module 8 by screws.

[0045] The welding Z-axis module 9 is mounted on the column of the equipment base 1 by screws and has a high vertical assembly relationship with the welding rotating platform 4. The welding laser component 6 is mounted on the welding Z-axis module 9 by screws.

[0046] The clamping assembly X-axis module 13 is installed on the gantry column of the equipment base 1 by screws and has a high vertical assembly relationship with the welding rotating platform 4. The clamping assembly Z-axis module 12 is installed on the clamping assembly X-axis module 13 by screws. The clamping assembly Y-axis module 11 is installed on the clamping assembly Z-axis module 12 by screws. The welding clamping assembly 10 is installed on the clamping assembly Y-axis module 11 by screws.

[0047] When the probe welding automatic changeover mechanism performs short probe welding, the welding clamping assembly 10 clamps the probe, and under the linkage of the clamping assembly Y-axis module 11, the clamping assembly Z-axis module 12, and the clamping assembly X-axis module 13, it is transported to the bottom of the positioning camera 7. The positioning camera 7 automatically focuses on the needle tip of the probe under the drive of the positioning camera Z-axis module 8 to obtain the XYZ three-dimensional coordinates of the needle tip. Then, according to the needle tip coordinate information, the clamping assembly Z-axis module 12, the welding Y-axis module 2, and the welding X-axis module 3 are linked to make the probe clamped by the welding clamping assembly 10 reach the welding position, and the welding laser assembly 6 performs laser welding. After the welding is completed, each axis returns to the initial position and the next short probe welding work cycle is carried out.

[0048] like Figures 4 to 6 That is, when welding probes with narrow pitch, use probes of different lengths to keep the detection needle tip consistent. By welding probes of different lengths at intervals, the welding of the probes with narrow pitch can be ensured while leaving a size margin for the welding clamping mechanism of the probe.

[0049] This is the welding sequence for narrow pitch welding probes. The first stage: first clamp the short probe for welding. At this time, the short probe spacing is twice the spacing of the finished product, which is convenient for the clamping mechanism to work. When all the short probes are welded, the second stage begins: while keeping the needle tip in the same position, the clamping mechanism holding the long probe performs welding operations behind the short probe. The spacing is also twice the spacing of the finished product. In the third stage, both the long and short probes are completed.

[0050] When the short probe 31 is welded and the long probe 32 is to be welded, the action flow of the automatic probe welding change mechanism is as follows: according to the size difference of the long and short probes, under program control, the Y-axis module 11 of the clamping assembly drives the welding clamping assembly 10 to automatically move to the clamping position of the long probe, and then the welding clamping assembly 10 clamps the long probe, and under the linkage of the Y-axis module 11 of the clamping assembly, the Z-axis module 12 of the clamping assembly, and the X-axis module 13 of the clamping assembly, it is transported to the bottom of the positioning camera 7, and the positioning camera 7 is driven by the positioning camera Z-axis module 8 to automatically focus on the needle tip of the long probe to obtain the XYZ three-dimensional coordinates of the needle tip, and then, according to the needle tip coordinate information, the Z-axis module 12 of the clamping assembly, the welding Y-axis module 2 and the welding X-axis module 3 are linked to make the long probe clamped by the welding clamping assembly 10 reach the welding position, and the welding laser assembly 6 performs laser welding. After the welding is completed, each axis returns to the initial position and the next welding cycle of the long probe is carried out.

[0051] The device has the function of automatically correcting the position parameters. When the long and short probes are switched, the device will automatically calculate the theoretical tip position of the new probe after the switch based on the tip position of the probe that was successfully welded last time. Accordingly, after the Y-axis module 11 of the clamping component drives the welding clamping component 10 to automatically move to the set position according to the process parameters, it will clamp the new probe and send it to the bottom of the positioning camera 7 by the Z-axis module 12 and the X-axis module 13 of the clamping component. After the positioning camera 7 locates the actual position of the tip, the actual coordinates of the tip are compared with the theoretical coordinates to obtain the correction data, and the difference in the XYZ coordinates is automatically sent to the control programs of the Z-axis module 12 of the clamping component, the welding Y-axis module 2 and the welding X-axis module 3, respectively, as the compensation value for the next welding work. At this point, the automatic correction setting of the position parameters after the long and short probes are switched is completed. Among them, the above-mentioned control program is a conventional technical means in this field, and no unnecessary elaboration is made here.

[0052] The present invention adopts the scheme of adding a high-precision motion axis to the welding clamping assembly, which can automatically switch the working position of the clamping mechanism according to the probe specifications, and cooperate with the visual positioning system to automatically fine-tune the parameters of each motion axis of the welding system. The welding production function of automatically switching the probe model is realized without manual intervention, which greatly reduces the production debugging time, eliminates the influence of human factors, and effectively ensures the stability of welding accuracy.

[0053] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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 therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implying the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0054] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principles of the present invention, and these improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A probe welding automatic type changing mechanism, comprising a device base (1) and a welding laser assembly (6); Features: A welding Y-axis module (2) is installed on the equipment base (1), a welding X-axis module (3) is installed on the welding Y-axis module (2), a welding rotating platform (4) is installed on the welding X-axis module (3), and a probe plate (5) to be welded is installed on the welding rotating platform (4); A positioning camera Z-axis module (8) is installed on a positioning camera gantry on a device base (1) on one side of the probe plate (5) to be welded along the positive direction of the Y-axis, and a positioning camera (7) is installed on the positioning camera Z-axis module (8); A clamping assembly X-axis module (13) is installed on a welding clamping gantry on the equipment base (1) on the negative side of the probe plate (5) to be welded along the Y-axis, a clamping assembly Z-axis module (12) is installed on the clamping assembly X-axis module (13), a clamping assembly Y-axis module (11) is installed on the clamping assembly Z-axis module (12), and a welding clamping assembly (10) is installed on the clamping assembly Y-axis module (11); A welding Z-axis module (9) is installed on a welding gantry on a device base (1) on one side of the probe plate (5) to be welded along the negative direction of the X-axis, and a welding laser assembly (6) is installed on the welding Z-axis module (9).

2. The automatic mold changing mechanism for probe welding according to claim 1, characterized in that: The welding laser assembly (6) comprises a welding Z-axis connecting plate (14) connected to a welding Z-axis module (9); a welding Y-axis electric slide (15) is mounted on the welding Z-axis connecting plate (14); a welding X-axis electric slide (16) is mounted on the welding Y-axis electric slide (15); a laser head mounting frame (17) is mounted on the welding X-axis electric slide (16); a manual rotating table (18) is mounted on the laser head mounting frame (17); and a welding head (19) is mounted on the manual rotating table (18).

3. The automatic mold changing mechanism for probe welding according to claim 1, characterized in that: The welding clamping assembly (10) comprises a clamping Y-axis connecting plate (20) connected to the clamping assembly Y-axis module (11), a clamping jaw mounting plate (21) is mounted on the clamping Y-axis connecting plate (20), a fixed clamping jaw (26) is mounted on the clamping jaw mounting plate (21) along one side of the positive direction of the X-axis via a fixed clamping jaw seat (25), and a movable clamping jaw (24) is mounted on the clamping jaw mounting plate (21) along one side of the negative direction of the X-axis via a movable clamping jaw seat (23).

4. The automatic mold changing mechanism for probe welding according to claim 3, characterized in that: A movable jaw driving cylinder (22) is installed on a jaw mounting plate (21) on one side of the movable jaw seat (23) along the positive direction of the X-axis, and the movable jaw driving cylinder (22) drives the movable jaw seat (23) to move in the X-axis direction.

5. The automatic mold changing mechanism for probe welding according to claim 3, characterized in that: A differential head (27) is installed on a clamping jaw mounting plate (21) on one side of the top of the movable clamping jaw seat (23) via a differential head seat (28), and the differential head (27) is distributed along the X-axis direction.

6. The automatic mold changing mechanism for probe welding according to claim 3, characterized in that: At least one clamping jaw limiting block (29) is installed on the clamping jaw mounting plate (21) on one side of the movable clamping jaw seat (23) along the negative direction of the X-axis.

7. The automatic mold changing mechanism for probe welding according to claim 3, characterized in that: At least one clamping jaw stopper (30) is installed on the clamping jaw mounting plate (21) on one side of the movable clamping jaw seat (23) along the positive direction of the X-axis.

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