阅读说明：本技术 应用于半导体激光器制备的平行焊接设备 (Parallel welding equipment applied to semiconductor laser preparation ) 是由 马永坤 李军 凌勇 吕艳钊 席道明 陈云 于 2021-09-01 设计创作，主要内容包括：本发明应用于半导体激光器制备的平行焊接设备,包括至少两个滚轮电极,与滚轮电极的电极板想连接的焊接变压器,还包括工作台、焊接变压器安装架、滚轮电极调节装置以及定位底座；所述定位底座包括可滑动固定在工作台上的基台、可转动固定在基台上的定位台以及用于压合激光器盖板与激光器壳体的压合结构；设计了自动压合结构,通过压合气缸与压合块进行配合,自动化压合,提高效率；不需要人工压合,省时省力,且使用可靠；并且配合设置了由橡胶弹性体构成的缓冲层,防止由于气缸压力造成压合块对于激光器盖板顶部压痕,提高安全性。(The invention relates to parallel welding equipment applied to semiconductor laser preparation, which comprises at least two roller electrodes, a welding transformer, a workbench, a welding transformer mounting frame, a roller electrode adjusting device and a positioning base, wherein the welding transformer is connected with an electrode plate of the roller electrodes; the positioning base comprises a base platform which can be fixed on the workbench in a sliding mode, a positioning platform which can be fixed on the base platform in a rotating mode and a pressing structure which is used for pressing the laser cover plate and the laser shell in a pressing mode; an automatic pressing structure is designed, and the automatic pressing is realized by matching a pressing cylinder with a pressing block, so that the efficiency is improved; manual pressing is not needed, time and labor are saved, and the use is reliable; and the buffer layer formed by the rubber elastic body is arranged in a matched manner, so that the indentation of the pressing block on the top of the laser cover plate caused by the pressure of the air cylinder is prevented, and the safety is improved.)

1. The parallel welding equipment applied to the preparation of the semiconductor laser comprises at least two roller electrodes (1) and a welding transformer (2) which is connected with an electrode plate of the roller electrodes (1), and is characterized by further comprising a workbench (3), a welding transformer mounting frame (4), a roller electrode adjusting device (5) and a positioning base (6); the positioning base (6) and the roller electrode mounting rack (4) are fixedly arranged on the workbench (3);

two welding transformer mounting frames (4) are vertically connected to two sides of the bottom of the welding transformer (2), the welding transformer mounting frames (4) are of a square cylinder structure, the top of each welding transformer mounting frame (4) is fixedly connected with the welding transformer (2), the bottom of each welding transformer mounting frame is fixedly connected with the workbench (3), and the welding transformer (2) is fixed on the workbench (3) through the welding transformer mounting frames (4);

the roller electrode adjusting device (5) is arranged at the bottom of one side of the welding transformer (2), and the roller electrode adjusting device (5) comprises a mounting plate (51), two straight line modules (52) which are arranged at the bottom of the mounting plate (51) in a bilateral symmetry manner, and a mounting clamp (53) which is fixedly arranged on a sliding table of the straight line modules (52) and is used for clamping the roller electrode (1); the mounting plate (51) is of a flat plate type structure, and the mounting plate (51) is fixedly arranged at the bottom of the welding transformer (2); when the device is used, the roller electrodes (1) are clamped by the mounting clamp (53), and the adjustment of the distance between the roller electrodes (1) is realized through the sliding of the sliding table on the linear module (52);

the positioning base (6) comprises a base platform (61) which is fixed on the workbench (3) in a sliding mode, a positioning platform (62) which is fixed on the base platform (61) in a rotating mode and a pressing structure (63) which is used for pressing the laser cover plate and the laser shell; the positioning table (62) and the pressing structure (63) are fixedly arranged on the base table (61);

the positioning table (62) is of a circular plate structure, and when the laser welding device is used, a laser cover plate to be welded and a laser shell are placed at the center of the top of the positioning table (62); the positioning table (62) is fixed on the top center position of the base table (61);

the pressing structure (63) comprises a pressing support frame (631), a pressing cylinder (632), a cylinder telescopic rod (633) and a pressing block (634), the pressing support frame (631) is of an n-shaped structure, and two ends of the bottom of the pressing support frame (631) are fixedly arranged at two ends of the top of the base station (61); the number of the pressing cylinders (632) is one, and the pressing cylinders are vertically and fixedly arranged in the middle of the top of the pressing support frame (631); the air cylinder telescopic rod (633) is vertically arranged, the top of the air cylinder telescopic rod is fixedly connected with the pressing air cylinder (632), the bottom of the air cylinder telescopic rod penetrates through the pressing support frame (631), extends out of the lower part of the pressing support frame (631), and is fixedly connected with the pressing block (643); the pressing block (634) is of a square plate structure, the pressing block (634) is horizontally arranged, and when the laser welding device is used, the pressing block (634) is pressed on a laser cover plate to be welded and a laser shell through a cylinder telescopic rod (633).

2. The parallel welding equipment applied to semiconductor laser preparation according to claim 1, characterized in that a pushing mechanism (64) is further arranged on the positioning base (6), and the pushing mechanism (64) comprises a sliding track (641), a transmission screw rod (642), a screw rod motor (643) and a sliding wheel (644); the sliding rails (641) are of long strip-shaped structures, the number of the sliding rails is two, the two sliding rails are symmetrically and fixedly arranged on two sides of the top surface of the positioning base (6), one end of each of the two sliding rails (641) is located below the welding transformer (2), and a long strip-shaped groove (6411) is formed in the top of each sliding rail (641);

the transmission screw rod (642) is arranged between the two sliding rails (641), the transmission screw rod (642) and the sliding rails (641) are arranged in parallel, and one end of the transmission screw rod (642) is positioned below the welding transformer (2); the top of a movable nut (6421) on the transmission screw rod (642) is fixedly connected with a connecting block (645), and the top of the connecting block (645) is fixedly connected with the center of the bottom of the base (61); one end of the transmission screw rod (642) is connected with the screw rod motor (643);

the number of the sliding wheels (644) is four, the sliding wheels are symmetrically and fixedly arranged on two sides of the bottom of the base platform (61), the number of each side is two, the sliding wheels (644) are embedded in the elongated grooves (6411) in the sliding rails (641), and the sliding wheels (644) roll along the inside of the elongated grooves (6411) to drive the base platform (61) to do linear motion on the positioning base (6).

3. The parallel welding equipment applied to semiconductor laser preparation as claimed in claim 1, wherein a rotating mechanism (65) is further arranged on the base platform (61), and the rotating mechanism (65) comprises a rotating shaft (651), a rotating bearing (652), a rotating gear (653), a rotating rack (654), a rotating oil cylinder (655) and an oil cylinder telescopic rod (656); the rotating shaft (651) is of a circular cylinder structure, and the bottom of the rotating shaft is fixedly connected with the middle position of the top of the base station (61) to form an integral structure;

a circular counter bore (6531) is formed in the center of the bottom of the rotating gear (653), the circular counter bore (6531) is sleeved outside the periphery of the rotating shaft (651), the rotating bearing (652) is located between the circular counter bore (6531) and the rotating shaft (651), the inner ring of the rotating bearing (652) is fixedly connected with the outer side wall of the rotating shaft (651), the outer ring of the rotating bearing (652) is fixedly connected with the inner side wall of the circular counter bore (6531), and the rotating gear (653) is rotatably connected with the rotating shaft (651) through the rotating bearing (652); the top of the rotating gear (653) is fixedly connected with the bottom center position of the positioning table (62);

the rotating rack (654) is arranged on one side of the transmission gear (653), and the rotating rack (654) is meshed with the transmission gear (653); one end of the rotating rack (654) is fixedly connected with an oil cylinder telescopic rod (656); one end of the oil cylinder telescopic rod (656) is fixedly connected with the rotating oil cylinder (655), the bottom of the rotating oil cylinder (655) is fixedly connected with the base station (61), when the rotating oil cylinder (655) is used, the oil cylinder telescopic rod (656) is driven to do reciprocating linear motion to drive the rotating rack (654) to do reciprocating linear motion, and the rotating rack (654) is meshed with the transmission gear (653) to drive the rotating rack (654) to do rotary motion.

4. The parallel welding apparatus applied to semiconductor laser preparation as claimed in claim 1 wherein, a plurality of positioning blocks (621) are fixedly arranged on the top of the positioning table (62), and in use, the positioning blocks (621) are uniformly distributed around the welded laser housing.

5. The parallel welding equipment applied to semiconductor laser preparation as claimed in claim 2, characterized in that both sides of the sliding rail (641) are provided with limit blocks (6412), the limit blocks (6412) are square structures, and the bottom of the limit blocks is fixedly connected with the positioning base (6).

6. The parallel soldering apparatus for semiconductor laser fabrication as claimed in claim 1 wherein the bottom of the pressing block (634) is provided with a buffer layer (6341) made of rubber elastomer.

7. The parallel welding apparatus applied to semiconductor laser fabrication according to claim 1, further comprising a control mechanism, wherein the control mechanism is a PLC controller (7); the PLC (7) transmits signals with the roller electrode (1), the linear module (52) and the pressing air cylinder (632) through cables.

8. The parallel welding apparatus applied to semiconductor laser fabrication according to claim 2, further comprising a control mechanism, wherein the control mechanism is a PLC controller (7); the PLC (7) is in signal transmission with the roller electrode (1), the linear module (52), the pressing air cylinder (632) and the screw rod motor (643) through cables.

9. The parallel welding equipment applied to semiconductor laser preparation according to claim 3, further comprising a control mechanism, wherein the control mechanism is a PLC (7); the PLC (7) is in signal transmission with the roller electrode (1), the linear module (52), the pressing air cylinder (632) and the rotating oil cylinder (655) through cables.

Technical Field

The invention belongs to the technical field of laser processing equipment, and particularly relates to parallel welding equipment applied to semiconductor laser preparation.

Background

In the preparation process of the existing semiconductor laser, seam welding needs to be carried out on a laser shell of the existing semiconductor laser, so that the cover body and the laser shell are welded into a whole to realize integral sealing, and an optical path structure inside the laser shell is protected. In the process, most production enterprises do not have a special packaging structure specially aiming at the semiconductor laser, and generally adopt a manual seam welding process or a semi-manual seam welding process.

These two production processes have the following disadvantages:

(1) and manual seam welding is to manually weld the laser shell by using a welding gun or a roller electrode. This approach is inefficient and has not been adopted by most enterprises.

(2) The semi-manual seam welding is that the cover body is pressed and welded on the laser shell to be welded manually, the cover body and the laser shell are placed under a welded roller electrode, and the roller electrode is driven by a cylinder, an oil cylinder or an electric module to do linear motion to perform welding sealing operation on the joint of the cover body and the laser shell. This kind of mode is owing to adopt artifical pressfitting, the fixed mode of aiming of manual work, can have great error, and production quality can not obtain the guarantee. And four limits all around of lid all need all carry out welding operation with laser casing top all around, and this kind of mode needs artifical pressfitting quartic, carries out welding operation with lid and laser casing location quartic, and operating efficiency is low, can not adapt to the large-scale production needs of enterprise.

Disclosure of Invention

Aiming at the problems, the invention discloses parallel welding equipment applied to the preparation of a semiconductor laser. The specific technical scheme is as follows:

the parallel welding equipment applied to the preparation of the semiconductor laser comprises at least two roller electrodes and a welding transformer which is connected with an electrode plate of the roller electrodes, and is characterized by also comprising a workbench, a welding transformer mounting rack, a roller electrode adjusting device and a positioning base; the positioning base and the roller electrode mounting frame are fixedly arranged on the workbench;

two welding transformer mounting frames are vertically connected to two sides of the bottom of the welding transformer, the welding transformer mounting frames are of square cylinder structures, the top of each welding transformer mounting frame is fixedly connected with the welding transformer, the bottom of each welding transformer mounting frame is fixedly connected with the workbench, and the welding transformer is fixed on the workbench through the welding transformer mounting frames;

the roller electrode adjusting device is arranged at the bottom of one side of the welding transformer and comprises an installation plate, two linear modules which are arranged at the bottom of the installation plate in a bilateral symmetry mode and an installation clamp which is fixedly arranged on a sliding table of the linear modules and used for clamping roller electrodes; the mounting plate is of a flat plate type structure and is fixedly arranged at the bottom of the welding transformer; when the installation fixture is used, the roller electrodes are clamped by the installation fixture, and the adjustment of the distance between the roller electrodes is realized through the sliding of the sliding table on the linear module;

the positioning base comprises a base platform which can be fixed on the workbench in a sliding mode, a positioning platform which can be fixed on the base platform in a rotating mode and a pressing structure which is used for pressing the laser cover plate and the laser shell in a pressing mode; the positioning table and the pressing structure are both fixedly arranged on the base table;

the positioning table is of a circular plate structure, and when the laser positioning table is used, a laser cover plate to be welded and a laser shell are placed at the center of the top of the positioning table; the positioning table is fixed in position and at the center of the top of the base table;

the pressing structure comprises a pressing support frame, a pressing air cylinder, an air cylinder telescopic rod and a pressing block, the pressing support frame is of an n-shaped structure, and two ends of the bottom of the pressing support frame are fixedly arranged at two ends of the top of the base station; the number of the pressing cylinders is one, and the pressing cylinders are vertically and fixedly arranged in the middle of the top of the pressing support frame; the air cylinder telescopic rod is vertically arranged, the top of the air cylinder telescopic rod is fixedly connected with the pressing air cylinder, and the bottom of the air cylinder telescopic rod penetrates through the pressing support frame, extends out of the lower part of the pressing support frame and is fixedly connected with the pressing block; the pressing block is of a square plate structure and is horizontally arranged, and when the laser welding device is used, the pressing block is pressed on a laser cover plate and a laser shell to be welded through a cylinder telescopic rod.

Furthermore, a pushing mechanism is also arranged on the positioning base and comprises a sliding rail, a transmission screw rod, a screw rod motor and a sliding wheel; the two sliding rails are of elongated structures and are fixedly arranged on two sides of the top surface of the positioning base in a bilateral symmetry mode, one end of each of the two sliding rails is located below the welding transformer, and an elongated groove is formed in the top of each sliding rail;

the transmission screw rod is arranged between the two sliding rails, the transmission screw rod and the sliding rails are arranged in parallel, and one end of the transmission screw rod is positioned below the welding transformer; the top of a movable nut on the transmission screw rod is fixedly connected with a connecting block, and the top of the connecting block is fixedly connected with the center of the bottom of the base station; one end of the transmission screw rod is connected with the screw rod motor;

the sliding wheels are symmetrically and fixedly arranged on two sides of the bottom of the base station, the number of each side is two, the sliding wheels are embedded in the elongated grooves in the sliding rails, and the sliding wheels roll along the insides of the elongated grooves to drive the base station to do linear motion on the positioning base.

Further, a rotating mechanism is further arranged on the base platform, and the rotating mechanism comprises a rotating shaft, a rotating bearing, a rotating gear, a rotating rack, a rotating oil cylinder and an oil cylinder telescopic rod; the rotating shaft is of a circular cylinder structure, and the bottom of the rotating shaft is fixedly connected with the middle position of the top of the base station to form an integral structure;

a circular counter bore is arranged at the center of the bottom of the rotating gear and is sleeved outside the periphery of the rotating shaft, the rotating bearing is positioned between the circular counter bore and the rotating shaft, an inner ring of the rotating bearing is fixedly connected with the outer side wall of the rotating shaft, an outer ring of the rotating bearing is fixedly connected with the inner side wall of the circular counter bore, and the rotating gear is rotatably connected with the rotating shaft through the rotating bearing; the top of the rotating gear is fixedly connected with the center of the bottom of the positioning table;

the rotating rack is arranged on one side of the transmission gear and meshed with the transmission gear; one end of the rotating rack is fixedly connected with an oil cylinder telescopic rod; when the rotary oil cylinder is used, the rotary oil cylinder drives the oil cylinder telescopic rod to do reciprocating linear motion to drive the rotary rack to do reciprocating linear motion, and the rotary rack is meshed with the transmission gear to drive the rotary rack to do rotary motion.

Furthermore, a plurality of locating pieces are fixedly arranged at the top of the locating table, and when the laser welding device is used, the locating pieces are uniformly distributed around the welded laser shell.

Furthermore, the two sides of the sliding track are provided with limit blocks, the limit blocks are of square structures, and the bottoms of the limit blocks are fixedly connected with the positioning base.

Furthermore, a buffer layer made of a rubber elastic body is arranged at the bottom of the pressing block.

Further, the device also comprises a control mechanism, wherein the control mechanism is a PLC controller; the PLC carries out signal transmission through a cable, a roller electrode, a linear module, a pressing air cylinder, a screw rod motor and a rotating oil cylinder.

The invention has the beneficial effects that:

(1) an automatic pressing structure is designed, and the automatic pressing is realized by matching a pressing cylinder with a pressing block, so that the efficiency is improved; manual pressing is not needed, time and labor are saved, and the use is reliable; and the buffer layer formed by the rubber elastic body is arranged in a matched manner, so that the indentation of the pressing block on the top of the laser cover plate caused by the pressure of the air cylinder is prevented, and the safety is improved.

(2) The special rotating mechanism is adopted, the roller electrode adjusting device is matched, and when the rotating mechanism rotates, the roller electrode adjusting device is also adjusted, the use requirements of long edge and short edge welding at the top of the laser shell are met, the laser top can be welded at all around only by welding twice, and the efficiency and the precision are improved.

(3) The pushing mechanism is particularly arranged, automatic welding can be achieved, the base station is pushed through the pushing mechanism, the positioning table is driven, the laser shell to be welded slowly moves in the welding process, continuous welding is achieved, the using effect is good, and the using efficiency is high.

(4) Adopt automatic PLC design, can automize and accomplish laser instrument lid and laser housing top weldment work all around, do not need manual operation, improve work efficiency and production precision, excellent in use effect.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of a positioning base according to the present invention.

Fig. 3 is a top view of the present invention with the positioning table in a first state.

Fig. 4 is a top view of the present invention with the positioning table in a second state.

Fig. 5 is a partially cross-sectional schematic view of the pushing mechanism of the present invention.

FIG. 6 is a schematic top view of the rotating mechanism of the present invention.

Fig. 7 is a partial sectional view of the rotating mechanism of the present invention.

FIG. 8 is a schematic diagram of PLC connection according to the present invention.

Description of the reference numerals

A roller electrode 1, a welding transformer 2, a workbench 3, a welding transformer mounting rack 4,

A roller electrode adjusting device 5, a mounting plate 51, a linear module 52, a mounting clamp 53,

The positioning device comprises a positioning base 6, a base 61, a positioning table 62, a positioning block 621, a pressing structure 63, a pressing support 631, a pressing cylinder 632, a cylinder expansion link 633, a pressing block 634, a buffer layer 6341, a pushing mechanism 64, a sliding track 641, a strip-shaped groove 6411, a limit block 6412, a transmission screw 642, a screw motor 643, a sliding wheel 644, a rotating mechanism 65, a rotating shaft 651, a rotating bearing 652, a rotating gear 653, a circular counter bore 6531, a rotating rack 654, a rotating oil cylinder 655, an oil cylinder expansion link 656,

A PLC controller 7, a laser housing 8 with welding.

Detailed Description

In order to make the technical scheme of the invention clearer and clearer, the invention is further described with reference to the accompanying drawings, and any scheme obtained by carrying out equivalent replacement and conventional reasoning on the technical characteristics of the technical scheme of the invention falls into the protection scope of the invention. The fixing and the arrangement of the fixing and the connection are all general connection modes in the mechanical field, and the fixing and the connection can be performed by welding, bolt and nut connection and screw connection.

The transmission screw adopted in the embodiment of the invention is a universal ball screw sold on the market. The movable nut on the transmission screw is provided by the ball screw, and the ball screw is in the prior art and is not described herein.

The output end of the welding transformer adopted in the embodiment of the invention is respectively connected with the electrode plates of the two roller electrodes through the conductive copper strips, and high-quality discharge current is output through the electrode plates to realize welding on a welding object, and the technology is the prior art and is recorded in Chinese patent 'CN 201420496240.0', and is not described herein again.

The mounting fixture adopted in the embodiment of the invention is a universal component adopted in the market, such as a pipe clamp, a hoop, a U-shaped pipe clamp and the like, which can be matched with bolts and nuts, and all the universal parts are the prior art and are not described herein again.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element 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.

Example one

The parallel welding equipment applied to the preparation of the semiconductor laser comprises at least two roller electrodes 1 and a welding transformer 2 which is connected with an electrode plate of the roller electrodes 1, and is characterized by further comprising a workbench 3, a welding transformer mounting frame 4, a roller electrode adjusting device 5 and a positioning base 6; the positioning base 6 and the roller electrode mounting rack 4 are both fixedly arranged on the workbench 3;

two welding transformer mounting frames 4 are vertically connected to two sides of the bottom of the welding transformer 2, the welding transformer mounting frames 4 are of square cylinder structures, the top of each welding transformer mounting frame 4 is fixedly connected with the welding transformer 2, the bottom of each welding transformer mounting frame is fixedly connected with the workbench 3, and the welding transformer 2 is fixed on the workbench 3 through the welding transformer mounting frames 4;

the roller electrode adjusting device 5 is arranged at the bottom of one side of the welding transformer 2, and the roller electrode adjusting device 5 comprises an installation plate 51, two straight line modules 52 which are arranged at the bottom of the installation plate 51 in a bilateral symmetry manner, and an installation clamp 53 which is fixedly arranged on a sliding table of the straight line module 52 and is used for clamping the roller electrode 1; the mounting plate 51 is of a flat plate type structure, and the mounting plate 51 is fixedly arranged at the bottom of the welding transformer 2; when the device is used, the roller electrodes 1 are clamped by the mounting fixture 53, and the distance between the roller electrodes 1 is adjusted by sliding the sliding table on the linear module 52;

the positioning base 6 comprises a base table 61 which can be fixed on the workbench 3 in a sliding way, a positioning table 62 which can be fixed on the base table 61 in a rotating way, and a pressing structure 63 for pressing the laser cover plate and the laser shell; the positioning table 62 and the pressing structure 63 are both fixedly arranged on the base table 61;

the positioning table 62 is a circular plate structure, and when the laser welding device is used, a laser cover plate to be welded and a laser shell are placed at the center of the top of the positioning table 62; the positioning table 62 is fixed on the top center position of the base table 61;

the pressing structure 63 includes a pressing support frame 631, a pressing cylinder 632, a cylinder extension rod 633 and a pressing block 634, the pressing support frame 631 is an "n" shaped structure, and both ends of the bottom of the pressing support frame 631 are fixedly disposed at both ends of the top of the base platform 61; the number of the pressing cylinders 632 is one, and the pressing cylinders are vertically and fixedly arranged in the middle of the top of the pressing support frame 631; the cylinder telescopic rod 633 is vertically arranged, the top of the cylinder telescopic rod is fixedly connected with the pressing cylinder 632, the bottom of the cylinder telescopic rod penetrates through the pressing support frame 631, extends to the lower part of the pressing support frame 631, and is fixedly connected with the pressing block 643; the pressing block 634 is a square plate structure, the pressing block 634 is horizontally arranged, and when the laser welding device is used, the pressing block 634 is pressed on a laser cover plate and a laser shell to be welded through an air cylinder telescopic rod 633.

Further, a buffer layer 6341 made of a rubber elastic body is disposed at the bottom of the pressing block 634.

Further, the device also comprises a control mechanism, wherein the control mechanism is a PLC (programmable logic controller) 7; the PLC controller 7 performs signal transmission with the linear module 52 and the press cylinder 632 through cables.

Further, the top of the positioning table 62 is fixedly provided with 6 positioning blocks 621, and when the laser welding device is used, the positioning blocks 621 are uniformly distributed around the welded laser shell.

Example two

Compared with the first embodiment, the present embodiment is different in that: the positioning base 6 is further provided with a pushing mechanism 64, and the pushing mechanism 64 comprises a sliding track 641, a transmission screw rod 642, a screw rod motor 643 and a sliding wheel 644; the sliding rails 641 are long-strip-shaped structures, the number of the sliding rails 641 is two, the two sliding rails are symmetrically and fixedly arranged on two sides of the top surface of the positioning base 6, one end of each of the two sliding rails 641 is located below the welding transformer 2, and a long-strip-shaped groove 6411 is formed in the top of each of the sliding rails 641;

the transmission screw 642 is disposed between the two sliding tracks 641, the transmission screw 642 and the sliding tracks 641 are disposed in parallel, and one end of the transmission screw 642 is located below the welding transformer 2; the top of the movable nut 6421 on the transmission screw rod 642 is fixedly connected with a connecting block 645, and the top of the connecting block 645 is fixedly connected with the center of the bottom of the base table 61; one end of the transmission screw 642 is connected with the screw motor 643;

the number of the sliding wheels 644 is four, the sliding wheels 644 are respectively and symmetrically fixedly arranged on two sides of the bottom of the base station 61, the number of each side is two, the sliding wheels 644 are embedded in the elongated groove 6411 on the sliding rail 641, and the sliding wheels 644 roll along the inside of the elongated groove 6411 to drive the base station 61 to make linear motion on the positioning base 6.

Further, both sides of the sliding track 641 are provided with a limit block 6412, the limit block 6412 is a square structure, and the bottom of the square structure is fixedly connected with the positioning base 6.

The device also comprises a control mechanism, wherein the control mechanism is a PLC (programmable logic controller) 7; the PLC controller 7 performs signal transmission with the roller electrode 1, the linear module 52, the pressing cylinder 632, and the lead screw motor 643 through a cable.

EXAMPLE III

Compared with the first embodiment, the present embodiment is different in that: the base 61 is further provided with a rotating mechanism 65, and the rotating mechanism 65 comprises a rotating shaft 651, a rotating bearing 652, a rotating gear 653, a rotating rack 654, a rotating oil cylinder 655 and an oil cylinder telescopic rod 656; the rotating shaft 651 is of a circular cylinder structure, and the bottom of the rotating shaft is fixedly connected with the middle position of the top of the base station 61 to form an integral structure;

a circular counter bore 6531 is formed in the center of the bottom of the rotating gear 653, the circular counter bore 6531 is sleeved outside the periphery of the rotating shaft 651, the rotating bearing 652 is located between the circular counter bore 6531 and the rotating shaft 651, the inner ring of the rotating bearing 652 is fixedly connected with the outer side wall of the rotating shaft 651, the outer ring of the rotating bearing 652 is fixedly connected with the inner side wall of the circular counter bore 6531, and the rotating gear 653 is rotatably connected with the rotating shaft 651 through the rotating bearing 652; the top of the rotating gear 653 is fixedly connected with the bottom center of the positioning table 62;

the rotating rack 654 is arranged on one side of the transmission gear 653, and the rotating rack 654 is meshed with the transmission gear 653; one end of the rotating rack 654 is fixedly connected with an oil cylinder telescopic rod 656; one end of the oil cylinder telescopic rod 656 is fixedly connected with the rotating oil cylinder 655, the bottom of the rotating oil cylinder 655 is fixedly connected with the base station 61, when the oil cylinder is used, the rotating oil cylinder 655 drives the oil cylinder telescopic rod 656 to do reciprocating linear motion, the rotating rack 654 is driven to do reciprocating linear motion, and the rotating rack 654 is driven to do rotary motion by the mutual meshing of the rotating rack 654 and the transmission gear 653.

The device also comprises a control mechanism, wherein the control mechanism is a PLC (programmable logic controller) 7; the PLC controller 7 performs signal transmission with the roller electrode 1, the linear module 52, the press cylinder 632, and the rotation cylinder 655 through cables.

Example four

Compared with the first embodiment, the present embodiment is different in that: the positioning device also comprises a pushing mechanism 64 arranged on the positioning base 6, wherein the pushing mechanism 64 comprises a sliding track 641, a transmission screw rod 642, a screw rod motor 643 and a sliding wheel 644; the sliding rails 641 are long-strip-shaped structures, the number of the sliding rails 641 is two, the two sliding rails are symmetrically and fixedly arranged on two sides of the top surface of the positioning base 6, one end of each of the two sliding rails 641 is located below the welding transformer 2, and a long-strip-shaped groove 6411 is formed in the top of each of the sliding rails 641;

the transmission screw 642 is disposed between the two sliding tracks 641, the transmission screw 642 and the sliding tracks 641 are disposed in parallel, and one end of the transmission screw 642 is located below the welding transformer 2; the top of the movable nut 6421 on the transmission screw rod 642 is fixedly connected with a connecting block 645, and the top of the connecting block 645 is fixedly connected with the center of the bottom of the base table 61; one end of the transmission screw 642 is connected with the screw motor 643;

the number of the sliding wheels 644 is four, the sliding wheels 644 are respectively and symmetrically fixedly arranged on two sides of the bottom of the base station 61, the number of each side is two, the sliding wheels 644 are embedded in the elongated groove 6411 on the sliding rail 641, and the sliding wheels 644 roll along the inside of the elongated groove 6411 to drive the base station 61 to make linear motion on the positioning base 6.

Further, both sides of the sliding track 641 are provided with a limit block 6412, the limit block 6412 is a square structure, and the bottom of the square structure is fixedly connected with the positioning base 6.

The base 61 is further provided with a rotating mechanism 65, and the rotating mechanism 65 comprises a rotating shaft 651, a rotating bearing 652, a rotating gear 653, a rotating rack 654, a rotating oil cylinder 655 and an oil cylinder telescopic rod 656; the rotating shaft 651 is of a circular cylinder structure, and the bottom of the rotating shaft is fixedly connected with the middle position of the top of the base station 61 to form an integral structure;

a circular counter bore 6531 is formed in the center of the bottom of the rotating gear 653, the circular counter bore 6531 is sleeved outside the periphery of the rotating shaft 651, the rotating bearing 652 is located between the circular counter bore 6531 and the rotating shaft 651, the inner ring of the rotating bearing 652 is fixedly connected with the outer side wall of the rotating shaft 651, the outer ring of the rotating bearing 652 is fixedly connected with the inner side wall of the circular counter bore 6531, and the rotating gear 653 is rotatably connected with the rotating shaft 651 through the rotating bearing 652; the top of the rotating gear 653 is fixedly connected with the bottom center of the positioning table 62;

the rotating rack 654 is arranged on one side of the transmission gear 653, and the rotating rack 654 is meshed with the transmission gear 653; one end of the rotating rack 654 is fixedly connected with an oil cylinder telescopic rod 656; one end of the oil cylinder telescopic rod 656 is fixedly connected with the rotating oil cylinder 655, the bottom of the rotating oil cylinder 655 is fixedly connected with the base station 61, when the oil cylinder is used, the rotating oil cylinder 655 drives the oil cylinder telescopic rod 656 to do reciprocating linear motion, the rotating rack 654 is driven to do reciprocating linear motion, and the rotating rack 654 is driven to do rotary motion by the mutual meshing of the rotating rack 654 and the transmission gear 653.

The device also comprises a control mechanism, wherein the control mechanism is a PLC (programmable logic controller) 7; the PLC controller 7 transmits signals to the roller electrode 1, the linear module 52, the pressing cylinder 632, the lead screw motor 643, and the rotating cylinder 655 through cables.

The working principle of the embodiment is as follows:

(1) setting a first state and a second state of the positioning table in advance; as shown in fig. 3, the first state of the positioning table is that the long side of the laser housing on the positioning table is parallel to the linear module, and at this time, the roller electrode welds the short sides of the two ends of the top of the laser housing; as shown in fig. 4, the second state of the positioning table is that the short side of the laser housing on the positioning table is parallel to the linear module, and at this time, the roller electrode welds the long sides of the top of the laser housing.

(2) Setting a first state and a second state of the linear module in advance, wherein the first state of the linear module is that the distance between two roller electrodes is the length of the laser shell, the two roller electrodes are positioned at the short edges at the two ends of the top of the laser shell, and at the moment, the roller electrodes are used for welding the short edges at the two ends of the top of the laser shell; the first state of sharp module is that the interval of two gyro wheel electrodes is laser instrument casing width, and two gyro wheel electrodes are located the long limit position in laser instrument casing top both sides, and at this moment, the gyro wheel electrode welds on the long limit in laser instrument casing top both sides.

(3) When the laser device cover pressing fixture is used, a laser device cover body to be welded is placed on a laser device shell, then the laser device shell is placed between 6 positioning blocks on the positioning table, the PLC is started, the PLC starts the pressing air cylinder, and the laser device cover body is pressed and fixed on the laser device shell. It should be noted that the size of the pressing block is smaller than the top of the laser cover body, so that the pressing block does not block the place to be welded during welding.

(4) The initial position of the base is far away from one end of the welding transformer on the sliding rail, at the moment, the PLC controls the rotating motor to enable the positioning table to be in a first state, the PLC controls the linear module to enable the module to be in the first state, then the PLC starts the roller electrode, then the PLC controls the screw rod motor to drive the base to move towards the direction of the welding transformer, and in the moving process, the connecting position of the laser cover body to be welded and the laser shell passes through the roller electrode to enable the roller electrode to be welded with the short edges of the two ends of the top of the laser shell;

(5) after the short edges at the two ends of the top of the laser shell are welded, the PLC closes the roller electrodes, and controls the lead screw motor to drive the base to return to the initial position.

(6) The PLC controls the rotating motor to enable the positioning table to be in a second state, and controls the linear module to enable the module to be in the second state, then the PLC starts the roller electrode, then the PLC controls the lead screw motor to drive the base to move towards the welding transformer, and in the moving process, the connecting part of the laser cover body to be welded and the laser shell passes through the roller electrode, so that the roller electrode is welded to the long edges of the two sides of the top of the laser shell;

(7) after the long edges on the two sides of the top of the laser shell are welded, the PLC closes the roller electrodes, controls the lead screw motor to drive the base to return to the initial position, and completes welding.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.