CN114850639B

CN114850639B - Electrode wheel structure of anti-abrasion parallel sealing machine

Info

Publication number: CN114850639B
Application number: CN202210575441.9A
Authority: CN
Inventors: 张泽义; 白晋铭; 李文浩; 康永新; 王伟乾; 毛文杰; 李伟; 王晋强; 王鹏程; 李晓燕; 高晓伟
Original assignee: Northwest Electronic Equipment Institute of Technology
Current assignee: Northwest Electronic Equipment Institute of Technology
Priority date: 2022-05-25
Filing date: 2022-05-25
Publication date: 2023-05-26
Anticipated expiration: 2042-05-25
Also published as: CN114850639A

Abstract

The invention discloses an electrode wheel structure of an antiwear parallel sealing welding machine, which solves the problem of how to overcome the damage to sealing welding atmosphere caused by the rotation of an electrode wheel; the copper electrode wheel axle (5) is fixedly arranged in a copper electrode wheel axle through-connection shaft hole, a bearing inner ring transition fit annular boss (12) is arranged on the copper electrode wheel axle (5) which stretches out of the copper electrode wheel axle through-connection shaft hole rightward, and a copper flat-head pin shaft threaded hole (13) is arranged on the right end side elevation of the copper electrode wheel axle; the stainless steel bearing (7) is connected to the annular boss (12) of the bearing inner ring transition fit of the copper electrode wheel shaft in a penetrating way, the copper flat head pin shaft (15) is movably connected to the central through hole (14) in a penetrating way, an external thread is arranged at the tail end of the copper flat head pin shaft, and the tail part of the copper flat head pin shaft is connected with the copper flat head pin shaft threaded hole (13) in a threaded way after passing through the central through hole (14); overcomes the defect of rapid abrasion caused by the rotation of the electrode wheel shaft.

Description

Electrode wheel structure of anti-abrasion parallel sealing machine

Technical Field

The invention relates to a parallel sealing machine, in particular to an electrode wheel structure of a parallel sealing machine, which can avoid damaging sealing atmosphere in the parallel sealing machine during operation.

Background

The parallel seal welding machine is seal welding equipment for welding and assembling the tube shell and the cover plate together in a nitrogen or vacuum environment in a resistance fusion welding mode; the chip is packaged with strict requirements on atmosphere environment, and after the chip is placed in a box-shaped tube shell and covered with a cover plate, the chip is packaged in a certain atmosphere to form a related electronic device module; the annular seal between the box-shaped tube shell and the cover plate is rectangular, and the seal weld is two groups of parallel weld edges, so that the parallel seal welding machine mainly adopts a parallel seal welding process, and the rectangular seal ring of the box-shaped tube shell is respectively packaged with the two groups of parallel edges; the parallel sealing process has the advantages of small sealing temperature rise and high sealing air tightness, and is mainly used for packaging electronic chips for aerospace, aviation, military industry and the like; the existing full-automatic parallel sealing machine consists of an oven, a mechanical arm transmission mechanism, a spot welding sealing mechanism, a parallel sealing mechanism and an exchange box, wherein the spot welding mechanism and the parallel sealing mechanism consist of an identification system, the spot welding mechanism, the sealing mechanism and an X-direction moving platform; in airtight nitrogen environment, the tube shell and the cover plate are orderly placed in a tool charging box, the tool charging box is placed on an X-direction moving platform, an identification system identifies each tube shell and cover plate on the tool charging box, each tube shell and each cover plate with a chip placed thereon, the cover plate is accurately placed on a tube shell sealing ring through a suction nozzle, a spot welding mechanism presses two parallel electrode wheels down on two parallel sealing welding edges of the sealing ring on the cover plate for spot welding, and after the inspection is qualified, the parallel sealing welding is implemented by a sealing welding mechanism, so that a relevant electronic device module after sealing welding is obtained.

The welding mechanism of the parallel welding machine consists of a double-welding head mechanism and a welding table mechanism, wherein the double-welding head mechanism is arranged on a portal frame, the portal frame can move along the left-right Y direction and the up-down Z direction, the welding table mechanism moves along the front-back X direction and is provided with an R mechanism capable of realizing rotation, a X, R mechanism of the welding table is provided with a tool material box carrying a pipe shell and a cover plate, two electrode wheels are symmetrically arranged on the double-welding head mechanism, the two parallel electrode wheels are pressed down onto the pipe shell cover plate on a welding station in the tool material box, resistance welding is implemented after a welding circuit is connected, the tool material box moves along the front-back X direction along with the welding table, the two parallel electrode wheels roll along the X direction on the pipe shell of the cover plate, and the welding of the two parallel welding seams is completed in the rolling process; the structure of two welding head sealing mechanisms in the double welding head mechanism is the same, the welding head sealing mechanism consists of a welding head seat, an insulating block, a copper switching conductive block and a replaceable copper electrifying block, the welding head seat is arranged on a module capable of realizing Y, Z two-direction movement, the copper switching conductive block and the electrifying block are arranged at the lower end of the welding head seat through the insulating block, a shaft hole is formed in the replaceable copper electrifying block, a copper electrode wheel and a copper electrode wheel shaft are fixedly connected together, the copper electrode wheel shaft is movably inserted in the copper shaft hole, and in order to realize resistance welding with small energy loss, the switching conductive block, the replaceable electrifying block, the electrode wheel and the electrode wheel shaft are all made of copper materials, and the components are electrifying components in resistance welding; because the copper material is softer, in the process of implementing X-direction rolling welding on the pipe cover plate, the copper electrode wheel shaft rotates in the shaft hole of the power-on block, sliding friction exists between the copper electrode wheel shaft and the shaft hole, copper scraps can be generated in the shaft hole, and the generated copper scraps basically do not overflow; however, on the copper electrode wheel shaft, a limiting step of the electrode wheel shaft is arranged, the electrode wheel shaft is connected in the shaft hole of the power-on block in a penetrating way, and is positioned through the limiting steps of the two electrode wheel shafts, when the copper electrode wheel and the copper electrode wheel shaft rotate, the side elevation of the limiting step of the two electrode wheel shafts can generate sliding friction with the replaceable copper power-on block outside two ports of the shaft hole, copper scraps are generated, and the copper scraps directly fall into a packaged tooling disc, so that the packaging atmosphere of a chip is damaged, and particularly, the longer the working time of the full-automatic packaging equipment is, the more serious the phenomenon is; how to overcome the generation of the copper scraps becomes a problem to be solved by the full-automatic parallel sealing welding machine.

Disclosure of Invention

The invention provides an electrode wheel structure of an abrasion-resistant parallel sealing machine, which solves the technical problem of how to overcome the generation of copper scraps which can damage sealing atmosphere and are caused by the rotation of the electrode wheel.

The invention solves the technical problems by the following technical proposal:

the general conception of the invention is as follows: the electrode wheel structure of the traditional parallel sealing machine is abandoned, namely, the electrode wheel shaft and the electrode wheel are fixedly connected together and synchronously rotate; an eccentric groove pressing block is arranged on the shaft hole of the replaceable power-on block, an electrode wheel shaft penetrating through the shaft hole is fixedly pressed on the replaceable power-on block, and the electrode wheel is designed to be rotatable around the end part of the electrode wheel shaft; a stainless steel bearing is sleeved on an electrode wheel shaft between the electrode wheel and the replaceable power-on block, an inner step elevation on an inner ring of the stainless steel bearing is propped against a fixed circular ring on an outer elevation of the replaceable power-on block, so that a bearing inner ring, the replaceable power-on block and the electrode wheel shaft are integrated, and the bearing inner ring keeps fixed in position; the outer step elevation on the outer ring of the stainless steel bearing is connected with the top of the electrode wheel, so that the electrode wheel and the outer ring of the bearing form a complete rotating body, gaps between the inner ring and the outer ring of the bearing are fully utilized, the rotation of the electrode wheel is not contacted with the replaceable energizing block, sliding friction between the electrode wheel and the replaceable energizing block is avoided, and copper scraps caused by friction are avoided.

The electrode wheel structure of the anti-abrasion parallel sealing welding machine comprises a welding head seat, a copper electrode wheel shaft and a copper electrode wheel, wherein an insulating block is connected to the lower end of the welding head seat, a copper switching block is connected to the lower end of the insulating block, a copper replaceable block is connected to the lower end of the copper switching block, a copper electrode wheel shaft penetrating shaft hole is formed in the copper replaceable block, a right annular boss of the replacement block is fixedly arranged on the right side elevation of the copper replaceable block outside the right end hole of the copper electrode wheel shaft penetrating shaft hole, the copper electrode wheel shaft is fixedly arranged in the copper electrode wheel shaft penetrating shaft hole, a bearing inner ring transitional fit annular boss is arranged on the copper electrode wheel shaft extending rightward out of the copper electrode wheel shaft penetrating shaft hole, and a copper flat head pin shaft threaded hole is formed in the right side elevation of the copper electrode wheel shaft; a central through hole is arranged in the copper electrode wheel; the stainless steel bearing is connected to the annular boss in transition fit with the bearing inner ring of the copper electrode wheel shaft in a penetrating way, and the left side elevation of the stainless steel bearing inner ring is connected with the annular boss on the right side of the replacement block in a leaning way; the copper flat head pin shaft is movably connected in the central through hole in a penetrating way from right to left, an external thread is arranged at the tail end of the copper flat head pin shaft, the tail part of the copper flat head pin shaft passes through the central through hole and is in threaded connection with the copper flat head pin shaft threaded hole, and the copper electrode wheel is connected with the outer ring top of the stainless steel bearing, so that the copper electrode wheel and the outer ring of the stainless steel bearing can rotate around the copper flat head pin shaft together.

The copper electrode wheel shaft inserting shaft comprises a copper electrode wheel shaft inserting shaft hole, wherein a wheel shaft pressing block inserting notch is formed in a copper replaceable block on the front side of the copper electrode wheel shaft inserting shaft hole and is communicated with the copper electrode wheel shaft inserting shaft hole, a wheel shaft pressing block is arranged in the wheel shaft pressing block inserting notch, an eccentric groove is formed in the inner side face of the wheel shaft pressing block, and the eccentric groove is clamped on a copper electrode wheel shaft in the wheel shaft pressing block inserting notch.

The invention overcomes the defect that the electrode wheel shaft is worn quickly and needs to be replaced frequently caused by frequent rotation of the electrode wheel shaft, and meanwhile, by arranging the stainless steel bearing, the abrasion between the rotating electrode wheel and the copper replaceable block is avoided, and the probability of generating abrasion copper scraps is greatly reduced; in long-time operation, the welding atmosphere of the sealing welding element in the sealed nitrogen-filled or vacuum environment can be effectively protected, the sealing welding quality of the element is improved, the probability of ignition in sealing welding is reduced, the mechanism combination structure is simple, and the maintenance and the replacement are easier.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

fig. 2 is a schematic diagram of the explosive structure of the present invention.

Detailed Description

The invention is described in detail below with reference to the attached drawing figures:

the electrode wheel structure of the parallel welding machine of a kind of resistance to wear, including welding the head seat 1, copper electrode axle 5 and copper electrode wheel 6, connect with the insulating block 2 in the underpart of the head seat 1, connect with the copper transfer block 3 in underpart of the insulating block 2, connect with the copper removable block 4 in underpart of the copper transfer block 3, the welding circuit is connected together with welding head electricity through the copper transfer block 3, in the copper removable block 4, there are copper electrode axle through-hole, on the right side elevation of the copper removable block 4 outside the right end hole of the copper electrode axle through-hole, there are annular bosses 11 of right side of the replacement block fixedly, the copper electrode axle 5 is fixedly set up in copper electrode axle through-hole, so design copper electrode axle 5 and copper removable block 4 into the assembly, in order to change copper electrode axle 5 conveniently; the copper electrode wheel axle 5 extending rightward from the copper electrode wheel axle through-connection shaft hole is provided with a bearing inner ring transition fit annular boss 12, and the right end side elevation of the copper electrode wheel axle 5 is provided with a copper flat head pin shaft threaded hole 13; a central through hole 14 is arranged in the copper electrode wheel 6; the stainless steel bearing 7 is connected to the bearing inner ring transition fit annular boss 12 of the copper electrode wheel axle 5 in a penetrating way, and the left side elevation of the stainless steel bearing 7 inner ring is connected with the right side annular boss 11 of the replacement block in a leaning way; the copper flat head pin shaft 15 is movably connected in the central through hole 14 in a penetrating way from right to left, external threads are arranged at the tail end of the copper flat head pin shaft 15, the tail end of the copper flat head pin shaft 15 passes through the central through hole 14 and is connected with the copper flat head pin shaft threaded hole 13 in a threaded way, the copper flat head pin shaft 15 is connected with the right end of the copper flat head electrode wheel shaft 5, the flat head of the copper flat head pin shaft 15 limits the right side of the copper electrode wheel 6, and meanwhile, the left annular elevation of the left wheel seat of the copper electrode wheel 6 is propped against the right annular elevation of the outer ring of the stainless steel bearing 7, so that the outer ring of the stainless steel bearing 7 synchronously rotates along with the copper electrode wheel 6 around the copper flat head pin shaft 15; due to the arrangement of the annular boss 11 on the right side of the replacement block, a certain gap exists between the stainless steel bearing 7 and the right side elevation of the copper replaceable block 4, so that contact friction with the copper replaceable block 4 is avoided when the outer ring of the stainless steel bearing 7 rotates, and the possibility of copper scraps generated in the place is avoided.

An axle pressing block embedding notch 10 is formed in the copper replaceable block 4 at the front side of the copper electrode axle through-connection axle hole, the axle pressing block embedding notch 10 is communicated with the copper electrode axle through-connection axle hole, an axle pressing block 8 is arranged in the axle pressing block embedding notch 10, an eccentric groove 9 is formed in the inner side surface of the axle pressing block 8, and the eccentric groove 9 is clamped on the copper electrode axle 5 in the axle pressing block embedding notch; the eccentric groove 9 clamps and fixes the copper electrode wheel shaft 5 in the through shaft hole of the copper electrode wheel shaft, thereby realizing the fixation of the copper electrode wheel shaft 5 and facilitating the disassembly and assembly of all parts.

Claims

1. The utility model provides a parallel sealing welding machine electrode wheel structure of resistance to wears, including welding head seat (1), copper electrode shaft (5) and copper electrode wheel (6), at the lower extreme of welding head seat (1), be connected with insulating piece (2), at the lower extreme of insulating piece (2), be connected with copper adapter (3), at the lower extreme of copper adapter (3), be connected with copper removable piece (4), in copper removable piece (4), be provided with copper electrode shaft cross-under hole, on the right side facade of copper removable piece (4) of right-hand member mouth outside of copper electrode shaft cross-under hole, fixedly be provided with change piece right side annular boss (11), characterized in that, copper electrode shaft (5) is fixed to be set up in copper electrode shaft cross-under hole, on copper electrode (5) of stretching out copper electrode shaft cross-under hole to the right side, be provided with bearing inner race transition fit annular boss (12), on copper electrode shaft (5) right-hand member facade, be provided with copper shaft pin (13) spiral shell hole; a central through hole (14) is arranged in the copper electrode wheel (6); the stainless steel bearing (7) is connected to the annular boss (12) of the transition fit of the bearing inner ring of the copper electrode wheel axle (5) in a penetrating way, and the left vertical surface of the inner ring of the stainless steel bearing (7) is connected with the annular boss (11) on the right side of the replacement block in a leaning way; the copper flat head pin shaft (15) is movably connected in the central through hole (14) in a penetrating way from right to left, external threads are arranged at the tail end of the copper flat head pin shaft (15), the tail of the copper flat head pin shaft (15) passes through the central through hole (14) and then is connected with the copper flat head pin shaft threaded hole (13) in a threaded way, and the copper electrode wheel (6) is connected with the outer ring top of the stainless steel bearing (7) in a connecting way, so that the copper electrode wheel (6) and the outer ring of the stainless steel bearing (7) can rotate around the copper flat head pin shaft (15) together.

2. The electrode wheel structure of the abrasion-resistant parallel sealing machine according to claim 1, wherein an axle pressing block embedding notch (10) is arranged on a copper replaceable block (4) on the front side of a copper electrode axle penetrating shaft hole, the axle pressing block embedding notch (10) is communicated with the copper electrode axle penetrating shaft hole, an axle pressing block (8) is arranged in the axle pressing block embedding notch (10), an eccentric groove (9) is arranged on the inner side surface of the axle pressing block (8), and the eccentric groove (9) is clamped on a copper electrode axle (5) in the axle pressing block embedding notch.