A three-composite contact processing technology

Abstract

The present invention discloses a processing technology for triple composite contacts, and the steps are as follows: Step 1, the tail layer and the copper base layer are subjected to cold pressure welding to form a shape, and then after being cleaned by a transition transfer mechanism, they are transferred to a vacuum diffusion welding device to obtain double composite contacts; Step 2, the double composite contacts obtained in Step 1 are subjected to high-temperature diffusion welding with the head rivet layer to obtain triple composite contacts. The transition transfer mechanism in the present invention can realize the transportation of double composite contacts between various processes before high-temperature diffusion welding. The double composite contacts mechanize each process through the transition transfer mechanism, reduce the participation of personnel, and greatly improve the production efficiency of the entire contact.

Description

Technical Field

[0001] The present invention relates to the technical field of the preparation of electrical components, and particularly relates to a processing technology for a triple composite contact point. Background Art

[0002] After retrieval, a Chinese patent discloses a patent document with the application number 201510160116.6 and the title of a manufacturing technology for a triple composite contact point. It is recorded in this document that a tail layer and a copper base layer are cold pressure welded and formed to obtain a double composite contact point; the double composite contact point and a head rivet layer are subjected to high-temperature diffusion welding to obtain a triple composite contact point. However, in the actual preparation process, before vacuum welding, the double composite contact point formed by cold pressure welding needs to be cleaned. First, it is cleaned with nitric acid alcohol. When the corroded surface shows metallic luster, it is immediately washed with water and dried. The double composite contact point after drying treatment is finally subjected to high-temperature diffusion welding with the head rivet layer in a vacuum diffusion welding device. The process before the double composite contact point completes high-temperature diffusion welding is also relatively cumbersome, but there is no corresponding supporting equipment in the prior art to realize the transfer of the double composite contact point in each process, and the transfer operation between each process is carried out by personnel, which seriously affects the production and processing of the contact point. Summary of the Invention

[0003] The purpose of the present invention is to provide a processing technology for a triple composite contact point to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the present invention provides the following technical solutions:

[0005] A processing technology for a triple composite contact point is as follows: Step 1: A tail layer and a copper base layer are cold pressure welded and formed, and then are transported to a vacuum diffusion welding device after being cleaned by a transition transfer mechanism to obtain a double composite contact point; Step 2: The double composite contact point obtained in Step 1 and a head rivet layer are subjected to high-temperature diffusion welding to obtain a triple composite contact point; wherein, the transition transfer mechanism includes a storage box, a grasping unit, a second cleaning tank body and a first cleaning tank body; the storage box is used for storing the double composite contact point obtained in Step 1; the grasping unit is used for first transporting the double composite contact point in the storage box to the first cleaning tank body, then to the second cleaning tank body, and finally to the vacuum diffusion welding device; the first cleaning tank body is filled with nitric acid alcohol for corrosion cleaning of the welding surface to be welded of the double composite contact point; the second cleaning tank body is filled with clean water for water washing of the double composite contact point after corrosion cleaning.

[0006] Preferably, the grasping unit includes a mounting plate that reciprocates vertically and moves in a circular motion horizontally. A strip-shaped groove is formed in the middle of the mounting plate along its length direction, and the strip-shaped groove extends toward the side of the storage bin to penetrate the outside. A rotating sphere is rotatably embedded near the edge of the strip-shaped groove. A swinging rod adapted to the shape of the strip-shaped groove is fixedly embedded in the rotating sphere along the vertical direction. A second motor is installed at the top of the swinging rod, and a first electric telescopic rod is slidably installed inside. The movable end of the first electric telescopic rod extends to the outside along its rod length and is connected to a manipulator. One end of the mounting plate facing the storage bin is provided with a receiving unit for carrying double composite contacts along its length direction. The swinging rod rotates counterclockwise around the rotating sphere to drive the receiving unit to move toward the storage bin side, so that the double composite contacts in the storage bin fall into the receiving unit.

[0007] Preferably, two second electric telescopic rods are fixedly installed inside the mounting plate along its length direction. The two second electric telescopic rods are distributed on both sides of the strip-shaped groove. The movable end of each second electric telescopic rod is fixedly connected to a first linear rack. The first linear rack extends to the outside of the mounting plate along the rod length of the second electric telescopic rod and is connected to a material receiving rod. A push rod is connected between the ends of the two material receiving rods. The two material receiving rods are connected by the push rod to form a receiving unit for carrying double composite contacts.

[0008] Preferably, two first connecting rods are symmetrically arranged on both sides of the mounting plate. One end of each first connecting rod extends into the mounting plate and is connected to a second gear that meshes with the corresponding first linear rack. The other ends of the two first connecting rods are fixedly connected by a connecting shaft. The connecting shaft passes through two bushings arranged on the outer wall of the swinging rod and maintains a rotational fit therewith.

[0009] Preferably, the bottom of the storage bin is of a conical structure. The discharge end of the storage bin is integrally formed and connected with a fixing plate. A sliding plate is slidably and guidingly installed at the bottom of the fixing plate. The push rod in the receiving unit drives the sliding plate to slide along the fixing plate so that the double composite contacts inside the storage bin fall into the receiving unit. A sliding column is fixedly connected to the side of the sliding plate away from the push rod. The extending end of the sliding column extends into a chute inside the fixing plate and is coaxially connected with a limiting baffle. The limiting baffle is slidably and fit-connected with the chute. A spring is also sleeved on the outside of the sliding column. One end of the spring is connected to the limiting baffle, and the other end is connected to the outer wall of the chute. The restoring force direction of the spring faces the side where the limiting baffle is located.

[0010] Preferably, a bottom plate is further included, a top plate is arranged above the bottom plate, and the top plate is connected to the bottom plate by four supporting legs distributed in a rectangular shape; the top of the bottom plate is located between the second cleaning tank body and the first cleaning tank body, and a rotating shaft is provided in the vertical direction, the top and bottom of the rotating shaft are respectively rotatably connected to the top plate and the bottom plate, a first motor is installed on the top of the top plate, the motor shaft of the first motor passes through the top plate along the axial direction of the rotating shaft and is fixedly connected to the rotating shaft, a notch is formed on the circumferential surface of the rotating shaft along its length direction, a lead screw is driven and installed in the notch, and the mounting plate is slidably sleeved on the rotating shaft through a connecting sleeve and maintains threaded cooperation with the lead screw inside the rotating shaft.

[0011] Preferably, the bottom of the rotating shaft extends downward through the bottom plate and is fixedly connected to a circular disc, a fan-shaped plate is rotatably installed on the disk surface at the bottom of the disk, and the arcuate end of the fan-shaped plate is slidably connected to an arcuate rack through a slide rail, and a central shaft is rotatably installed at the center of the bottom of the second cleaning tank body and the first cleaning tank body, the top of the central shaft extends to the inside of the second cleaning tank body / the first cleaning tank body and is fixedly connected to a stirring blade, and the bottom end extends downward to the outside of the second cleaning tank body / the first cleaning tank body and is fixedly sleeved with a first gear meshing with the arcuate rack; an articulated long rod is hinged on the plate surface at the bottom of the fan-shaped plate, and an articulated short rod is hinged at the end of the articulated long rod, and the extending end of the articulated short rod is connected to a motor drive fixed to the inside of the disc; a limiting sleeve is also fixedly sleeved on the rotating shaft, and the limiting sleeve maintains a rotational fit with the top of the bottom plate.

[0012] Preferably, the bottom of the vacuum diffusion welding equipment is equipped with a bottom cover through a guide column sliding guide, and an elastic connecting piece is connected to the outer wall of the bottom cover on the side facing the grabbing unit. The cross-section of the elastic connecting piece along its length direction is a U-shaped structure and the U-shaped opening faces the grabbing unit, and the push rod is connected to the bottom cover by extending to the inside of the elastic connecting piece to drive the bottom cover to slide relative to the vacuum diffusion welding equipment; a material picking piece is also rotatably installed inside the vacuum diffusion welding equipment, and in an initial state, the top of the material picking piece is open and a cylinder is installed at the bottom, and the piston rod of the cylinder extends to the inside of the material picking piece and then drives the installation of a magnetic suction plate; the bottom cover slides relative to the vacuum diffusion welding equipment so that the opening of the material picking piece is flipped to the bottom, so that the magnetic suction plate adsorbs and clamps the double composite contacts in the receiving unit under the drive of the cylinder.

[0013] Preferably, both sides of the material picking part are rotatably connected to the inner wall of the vacuum diffusion welding equipment through a second connecting rod, and a third gear is fixedly sleeved on each of the second connecting rods near the inner wall of the vacuum diffusion welding equipment. A second linear rack meshing with the third gear is provided on the side of the bottom cover facing the interior of the vacuum diffusion welding equipment, and the second linear rack extends toward the side of the grabbing unit to communicate with the outside of the vacuum diffusion welding equipment; a sealing plug is fixedly installed on one end of the guide column, and the end of the guide column facing the grabbing unit is fixedly connected to the sealing plug, and the projection surface of the sealing plug along the length direction of the guide column can completely cover the projection surface of the second linear rack.

[0014] Compared with the prior art, the present invention provides a three-composite contact processing technology, which has the following beneficial effects:

[0015] (1) The transition transfer mechanism in the present invention includes a material storage box, a grabbing unit, a second cleaning tank body and a first cleaning tank body, which can realize the transportation between various processes of the double composite contacts before high-temperature diffusion welding. The double composite contacts are mechanized to realize each process through the transition transfer mechanism, which reduces the participation of personnel and greatly improves the production efficiency of the entire contact.

[0016] (2) The bottom of the rotating shaft extends downward through the bottom plate and is fixedly connected to a circular disc. A fan-shaped plate is rotatably installed on the disk surface at the bottom of the disk. The arc-shaped end of the fan-shaped plate is slidably connected to an arc-shaped rack through a slide rail. A central shaft is rotatably installed at the center of the bottom of the second cleaning tank body and the first cleaning tank body. The top of the central shaft extends to the inside of the second cleaning tank body / the first cleaning tank body and is fixedly connected to a stirring blade. The bottom end extends downward to the outside of the second cleaning tank body / the first cleaning tank body and is fixedly sleeved with a first gear meshing with the arc-shaped rack. The sliding of the arc-shaped rack on the fan-shaped plate drives the first gear to rotate, thereby causing the stirring blade to move to stir the liquid in the second cleaning tank body / the first cleaning tank body, so that the liquid and the double composite contact are fully in contact, thereby improving the cleaning efficiency of the double composite contact.

[0017] (3) The arc-shaped rack slides on the slide rail to buffer the reciprocating rotation of the first gear. The first gear has a stop transition period when switching from clockwise rotation to counterclockwise rotation, which avoids the wear of the first gear and the arc-shaped rack due to increased inertia during rotation switching.

[0018] (4) After the double composite contacts have been cleaned in the first cleaning tank, the first motor drives the rotating shaft to rotate 180°, and the entire disc also rotates 180°. The arc-shaped rack on the disc just matches the first gear in the second cleaning tank, and the entire system can be used in the second cleaning tank. The disc in this embodiment adopts the above-mentioned installation method, which can not only meet the cleaning requirements of the second cleaning tank and the first cleaning tank at the same time, but also save the manufacturing cost of the equipment.

[0019] (5) The push rod is inserted into the elastic connecting piece, and the bottom cover is pushed to move leftward to open the vacuum diffusion welding equipment. During the sliding process of the bottom cover, the second linear rack inside it meshes with the third gear, thereby driving the material taking part to turn over until the opening faces downward, and the manipulator clamping the double composite contacts also rotates to the horizontal position. At this time, the first electric telescopic rod is started to drive the manipulator to move below the material taking part, and the air cylinder acts to drive the magnetic adsorption plate to move towards the opening of the material taking part, so that the magnetic adsorption plate adsorbs the double composite contacts, and the double composite contacts are separated from the manipulator by the adsorption force of the magnetic adsorption plate. Finally, the double composite contacts move into the material taking part. During the process of the bottom cover closing the vacuum diffusion welding equipment, the material taking part returns to the initial position again through the cooperation of the second linear rack and the third gear. Subsequently, the air cylinder drives the magnetic adsorption plate to move upward, so that the double composite contacts are located outside the material taking part. The temperature and pressure inside the vacuum diffusion welding equipment rise to the set value, and a set extrusion force is generated on the double composite contacts through the existing oil cylinder inside the vacuum diffusion welding equipment, prompting the workpiece to creep to complete the welding. The grasping unit is also well connected during the process of feeding materials into the vacuum diffusion welding equipment, which not only realizes automatic feeding, but also enables the entire vacuum diffusion welding equipment to complete sealing and material placement during the return process of the grasping unit, thereby saving the preparatory work before vacuum diffusion welding. Description of the Drawings

[0020] The drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention. In the drawings:

[0021] Figure 1 It is a schematic structural diagram of the entire transition transfer mechanism in the embodiment of the present invention;

[0022] Figure 2 It is a front view of the entire transition transfer mechanism in the embodiment of the present invention;

[0023] Figure 3 It is a schematic structural diagram of the bottom of the bottom plate in this embodiment;

[0024] Figure 4 It is a three-dimensional sectional view of the second cleaning tank body in the embodiment of the present invention;

[0025] Figure 5 It is a schematic assembly structure diagram of the grasping unit and the rotating shaft in the embodiment of the present invention;

[0026] Figure 6 It is a three-dimensional structural diagram of the grasping unit in the embodiment of the present invention, and the mounting plate in the figure is in a cut-away state;

[0027] Figure 7Schematic diagram when the grasping unit moves to the storage bin to pick up materials in the embodiment of the present invention;

[0028] Figure 8 Connection schematic diagram between the grasping unit and the storage bin when picking up materials in the embodiment of the present invention;

[0029] Figure 9 Cross-sectional schematic diagram when the storage bin is in the open state in the embodiment;

[0030] Figure 10 Internal schematic diagram of the vacuum diffusion welding equipment in the embodiment;

[0031] Figure 11 Three-dimensional cross-sectional schematic diagram of the vacuum diffusion welding equipment in the embodiment;

[0032] Figure 12 Schematic diagram when the bottom cover is in the open state in the embodiment;

[0033] Figure 13 Cross-sectional schematic diagram of the material picking part in the embodiment.

[0034] In the figure: 1, bottom plate; 2, support leg; 3, top plate; 4, rotating shaft; 5, first motor; 6, vacuum diffusion welding equipment; 7, storage bin; 8, second cleaning tank body; 9, first cleaning tank body; 10, mounting plate; 11, lead screw; 12, first gear; 13, disc; 14, articulated long rod; 15, articulated short rod; 16, sector plate; 17, arc rack; 18, slide rail; 19, central axis; 20, stirring blade; 21, limit sleeve; 22, connecting sleeve; 23, swing rod; 24, rotating sphere; 25, second motor; 26, first electric telescopic rod; 27, strip-shaped groove; 28, material receiving rod; 29, push rod; 30, manipulator; 31, second electric telescopic rod; 32, first linear rack; 33, second gear; 34, first connecting rod; 35, connecting shaft; 36, bushing; 37, fixing plate; 38, sliding plate; 39, sliding column; 40, chute; 41, limit baffle; 42, spring; 43, material picking part; 44, third gear; 45, bottom cover; 46, elastic connecting piece; 47, sealing plug plate; 48, second connecting rod; 49, second linear rack; 50, guiding column; 51, cylinder; 52, magnetic attraction plate. Detailed implementation manners

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The components of the embodiments of the present invention described and illustrated herein can be arranged and designed in various different configurations. Therefore, the detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention claimed, but merely represents selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts belong to the scope of protection of the present invention.

[0036] A three-composite contact processing process is as follows:

[0037] Step 1: When preparing the contact, first cold pressure weld the tail layer and the copper base layer to form a double-composite contact, and then after being cleaned by the transition transfer mechanism, it is transferred to the vacuum diffusion welding equipment 6 and high-temperature diffusion welded with the head rivet layer to complete the preparation of the contact, obtaining a double-composite contact;

[0038] Step 2: High-temperature diffusion weld the double-composite contact obtained in Step 1 with the head rivet layer to obtain a three-composite contact.

[0039] Among them, as Figures 1 to 13 shown, the transition transfer mechanism includes a storage box 7, a grasping unit, a second cleaning tank 8 and a first cleaning tank 9 arranged on the bottom plate 1. Above the bottom plate 1, a top plate 3 is arranged. The top plate 3 is connected to the bottom plate 1 through four support legs 2 distributed in a rectangle. The storage box 7 and the vacuum diffusion welding equipment 6 are respectively fixedly sleeved on the support legs 2 and are distributed on both sides of the grasping unit. The second cleaning tank 8 and the first cleaning tank 9 are fixedly installed on the bottom plate 1.

[0040] The storage box 7 is mainly used to store the double-composite contacts obtained in Step 1. All the double-composite contacts formed by cold pressure welding the tail layer and the copper base layer are collected in the storage box 7. The bottom of the storage box 7 is in a conical structure. The discharge end of the storage box 7 is integrally formed with a fixed plate 37. The bottom of the fixed plate 37 is slidably and guidingly installed with a sliding plate 38. The sliding plate 38 slides along the fixed plate 37 to open the fixed plate 37, and the double-composite contacts inside the storage box 7 fall into the material taking unit.

[0041] A sliding column 39 is fixedly connected to one side of the sliding plate 38. The extended end of the sliding column 39 extends into the slide groove 40 inside the fixed plate 37 and then coaxially connects to the limit baffle 41. The limit baffle 41 maintains a sliding fit connection with the slide groove 40. A spring 42 is also sleeved on the outside of the sliding column 39. One end of the spring 42 is connected to the limit baffle 41, and the other end is connected to the outer wall of the slide groove 40. The restoring force direction of the spring 42 is toward the side where the limit baffle 41 is located. The sliding plate 38 acts on the spring 42 during the sliding process of the fixed plate 37, and the spring 42 is compressed. After the material picking unit completes the material picking, the sliding plate 38 quickly returns to the initial position under the action of the spring 42, thereby realizing the one-by-one discharge of the double composite contacts.

[0042] The grabbing unit is used to transfer the double composite contacts in the storage box 7 to the first cleaning tank 9, then to the second cleaning tank 8, and finally to the vacuum diffusion welding device 6; Figure 1 , Figure 2 , Figure 5 as well as Figure 6 As shown, the grabbing unit includes a mounting plate 10 that reciprocates in the vertical direction and performs circular motion in the horizontal direction. A strip groove 27 is formed in the middle of the mounting plate 10 along the length direction, and the strip groove 27 extends toward one side of the material storage box 7 to penetrate the outside, a rotating ball 24 is rotatably embedded in the strip groove 27 near its edge, and a swing rod 23 that matches the shape of the strip groove 27 is fixedly embedded in the rotating ball 24 along the vertical direction, a second motor 25 is installed on the top of the swing rod 23, and a first electric telescopic rod 26 is slidably installed inside, and the movable end of the first electric telescopic rod 26 extends to the outside along the length direction of the rod and is connected to a manipulator 30.

[0043] Two second electric telescopic rods 31 are fixedly installed inside the mounting plate 10 along its length direction, and the two second electric telescopic rods 31 are distributed on both sides of the strip groove 27. The movable end of each second electric telescopic rod 31 is fixedly connected to a first linear rack 32. The first linear rack 32 extends along the rod length direction of the second electric telescopic rod 31 to the outside of the mounting plate 10 and is connected to a material receiving rod 28. A push rod 29 is connected between the ends of the two material receiving rods 28. The two material receiving rods 28 are connected by the push rod 29 to form a receiving unit that carries double composite contacts.

[0044] Since the composite contact in this application is in the shape of a screw with a T-shaped structure, in order to enable the double composite contact to fall into the receiving unit, in this embodiment, the distance between the two receiving rods 28 is adapted to the maximum diameter value of the double composite contact, and the opposite sides of the two receiving rods 28 are provided with inclined surfaces. In addition, two first connecting rods 34 are symmetrically arranged on both sides of the mounting plate 10. One end of each first connecting rod 34 extends into the mounting plate 10 and is connected to a second gear 33 that meshes with the corresponding first linear rack 32. The other ends of the two first connecting rods 34 are fixedly connected through a connecting shaft 35. The connecting shaft 35 passes through two bushings 36 arranged on the outer wall of the swing rod 23 and maintains a rotational fit therewith.

[0045] When the grasping unit operates, the second electric telescopic rod 31 is activated to drive the first linear rack 32 to slide outward from the mounting plate 10, so that the receiving unit approaches the discharge end at the bottom of the storage box 7. During the sliding process of the first linear rack 32, the second gear 33 is driven to rotate, and then the first connecting rod 34 is driven to rotate counterclockwise. The first connecting rod 34 acts on the swing rod 23 through the connecting shaft 35, causing it to rotate counterclockwise around the rotating sphere 24 and driving the manipulator 30 to rotate to the position of the sliding plate 38.

[0046] In the initial state, the entire grasping unit is as Figure 5 shown. When the second electric telescopic rod 31 operates, it drives the receiving unit to move horizontally close to the sliding plate 38, and drives the sliding plate 38 to slide relative to the fixed plate 37 through the push rod 29, so that the fixed plate 37 is opened, and the double composite contacts in the storage box 7 fall into the receiving unit. At this time, the manipulator 30 also just rotates counterclockwise by 90° to the horizontal position. The first electric telescopic rod 26 is activated to drive the manipulator 30 to move towards the receiving unit, and then the second motor 25 is activated to adjust the angle of the manipulator 30 to firmly clamp the double composite contacts. After the entire grasping unit grasps the material, it returns to the initial state again.

[0047] Diffusion welding has very high requirements for the cleanliness of the welded parts. The oxide film or oil stain on the surface of the welded parts will affect the quality of the welded parts. The double composite contacts in the above solution must be cleaned. Therefore, in this embodiment, nitric acid alcohol with a concentration of 4% is injected into the first cleaning tank 9 to corrode and clean the welding surface of the double composite contacts. When the corroded surface of the double composite contacts shows metallic luster, it is considered clean.

[0048] As Figure 1 、 Figure 2As shown in the figure, a rotating shaft 4 is vertically arranged between the second cleaning tank body 8 and the first cleaning tank body 9 at the top of the bottom plate 1. The top and bottom of the rotating shaft 4 are respectively rotatably connected to the top plate 3 and the bottom plate 1. A first motor 5 is installed on the top of the top plate 3. The motor shaft of the first motor 5 passes through the top plate 3 along the axis direction of the rotating shaft 4 and is fixedly connected to the rotating shaft 4. The rotating shaft 4 is driven to rotate by the first motor 5. A notch is formed on the circumferential surface of the rotating shaft 4 along its length direction. A lead screw 11 is drivingly installed in the notch. The mounting plate 10 is slidably sleeved on the rotating shaft 4 through a connecting sleeve 22 and is in threaded cooperation with the lead screw 11 inside the rotating shaft 4.

[0049] After the grasping unit grasps the material, first, the rotation of the lead screw 11 drives the mounting plate 10 to slide downward on the surface of the rotating shaft 4, and then the double composite contact is transported to the first cleaning tank body 9 for cleaning. When the double composite contact is cleaned inside the first cleaning tank body 9, the lead screw 11 is started again to reverse, and the mounting plate 10 slides upward along the rotating shaft 4, so that the double composite contact moves outside the first cleaning tank body 9. At this time, the first motor 5 is started to drive the rotating shaft 4 to rotate 180°, so that the double composite contact moves above the second cleaning tank body 8.

[0050] The second cleaning tank body 8 is filled with clean water for washing the double composite contact after corrosion cleaning. After the double composite contact moves above the second cleaning tank body 8, the grasping unit uses the same movement method as above to complete the water washing of the double composite contact in the second cleaning tank body 8. After the water washing is completed, it is dried by an external drying device and then transported to the vacuum diffusion welding device 6.

[0051] As Figures 2 to 4 shown, in order to improve the cleaning efficiency of the double composite contact in the second cleaning tank body 8 / the first cleaning tank body 9, the bottom of the rotating shaft 4 in this embodiment extends downward through the bottom plate 1 and is fixedly connected to a disc 13. A sector plate 16 is rotatably installed on the bottom surface of the disc 13. The arc end of the sector plate 16 is slidably connected to an arc rack 17 through a slide rail 18. Central shafts 19 are rotatably installed at the centers of the bottoms of the second cleaning tank body 8 and the first cleaning tank body 9. The top ends of the central shafts 19 extend into the second cleaning tank body 8 / the first cleaning tank body 9 and are fixedly connected to stirring blades 20. The bottom ends extend outside the second cleaning tank body 8 / the first cleaning tank body 9 and are fixedly sleeved with first gears 12 meshing with the arc rack 17. The rotation of the first gear 12 is driven by the sliding of the arc rack 17 on the sector plate 16, and then the stirring blades 20 act to stir the liquid in the second cleaning tank body 8 / the first cleaning tank body 9, so that the liquid and the double composite contact are fully contacted.

[0052] A hinged long rod 14 is hinged on the plate surface at the bottom of the sector plate 16, and a hinged short rod 15 is hinged at the end of the hinged long rod 14. The extended end of the hinged short rod 15 is connected to the motor drive fixed inside the disc 13. The motor drives the hinged short rod 15 to make a circular motion, and the hinged short rod 15 acts on the sector plate 16 through the hinged long rod 14 to swing back and forth; when the sector plate 16 is in Figure 3 In the state shown, the sector plate 16 rotates clockwise, and the arc rack 17 drives the first gear 12 to rotate clockwise. When the sector plate 16 rotates clockwise until the arc rack 17 just disengages from the first gear 12, the sector plate 16 starts to rotate counterclockwise under the action of the hinged long rod 14. At this time, after the arc rack 17 contacts the first gear 12, the first gear 12 does not rotate, but the first gear 12 drives the arc rack 17 to slide along the slide rail 18 until the arc rack 17 rotates clockwise to its end relative to the slide rail 18. At this time, the arc rack 17 The stirring blade 20 is meshed with the first gear 12 to drive the first gear 12 to flip, and the stirring blade 20 rotates back and forth in the second cleaning tank body 8 / first cleaning tank body 9 through the action of the above structure to disturb the liquid, so that the double composite contact and the liquid are re-contacted, and the arc-shaped rack 17 adopts the above-mentioned setting method to play a buffering role in the reciprocating rotation of the first gear 12, that is, the first gear 12 has a stay transition period in the process of switching from clockwise rotation to counterclockwise rotation, so as to avoid the wear of the first gear 12 and the arc-shaped rack 17 due to increased inertia during rotation switching.

[0053] In addition, after the double composite contacts are cleaned in the first cleaning tank 9, the first motor 5 drives the rotating shaft 4 to rotate 180°, and the entire disc 13 also rotates 180°. The arc-shaped rack 17 on the disc 13 just matches the first gear 12 in the second cleaning tank 8, and the entire system can be used in the second cleaning tank 8. The disc 13 in this embodiment adopts the above-mentioned installation method, which can not only meet the cleaning needs of the second cleaning tank 8 and the first cleaning tank 9 at the same time, but also save the manufacturing cost of the equipment.

[0054] Since the disc 13 is hoisted at the bottom of the base plate 1, in order to prevent the rotating shaft 4 from being subjected to a large tensile force in its axial direction, in this embodiment, a limiting sleeve 21 is fixedly sleeved on the rotating shaft 4, and the limiting sleeve 21 maintains rotational cooperation with the top of the base plate 1. With the above structure, the gravity of the entire disc 13 is equivalent to being concentrated on the limiting sleeve 21, thereby improving the stability of the entire equipment.

[0055] like Figures 10 to 13As shown, a bottom cover 45 is slidably and guidingly assembled to the bottom of a vacuum diffusion welding device 6 through guide posts 50. An elastic connecting member 46 is connected to the outer wall of the bottom cover 45 on the side facing the grasping unit. The cross-section of the elastic connecting member 46 along its length is in a U-shaped structure and the U-shaped opening faces the grasping unit. A push rod 29 is connected to the bottom cover 45 by extending into the elastic connecting member 46 to drive the bottom cover 45 to slide relative to the vacuum diffusion welding device 6.

[0056] To enable the push rod 29 to be smoothly inserted into the elastic connecting member 46, the bottom cover 45 has a certain damping when sliding relative to the vacuum diffusion welding device 6. When the push rod 29 drives the bottom cover 45 to seal the bottom of the vacuum diffusion welding device 6, the damping between the bottom cover 45 and the vacuum diffusion welding device 6 can ensure that the push rod 29 is always located inside the elastic connecting member 46.

[0057] A material taking member 43 is also rotatably installed inside the vacuum diffusion welding device 6. The two sides of the material taking member 43 are respectively rotatably connected to the inner wall of the vacuum diffusion welding device 6 through second connecting rods 48. A third gear 44 is fixedly sleeved on each second connecting rod 48 near the inner wall of the vacuum diffusion welding device 6. A second linear rack 49 meshing with the third gear 44 is installed on the side of the bottom cover 45 facing the inside of the vacuum diffusion welding device 6, and the side of the second linear rack 49 facing the grasping unit extends to communicate with the outside of the vacuum diffusion welding device 6. One end of the guide post 50 is fixedly installed with a sealing plug plate 47, and the end of the guide post 50 facing the grasping unit is fixedly connected to the sealing plug plate 47. When the bottom cover 45 moves to contact the sealing plug plate 47, it is blocked, and at this time the push rod 29 can smoothly disengage from the elastic connecting member 46.

[0058] In addition, since the vacuum degree and temperature inside the vacuum diffusion welding device 6 are relatively strict when the double composite contacts are welded inside the vacuum diffusion welding device 6, in order to ensure the sealing performance inside the vacuum diffusion welding device 6, the projection surface of the sealing plug plate 47 along the length direction of the guide post 50 can completely cover the projection surface of the second linear rack 49. When the bottom cover 45 moves to contact the sealing plug plate 47, the end of the second linear rack 49 on the bottom cover 45 is exactly covered by the sealing plug plate 47, thereby keeping the inside of the bottom cover 45 and the vacuum diffusion welding device 6 in good sealing performance.

[0059] In the initial state, the top of the material picking piece 43 is open, and a cylinder 51 is installed at the bottom. The piston rod of the cylinder 51 extends into the inside of the material picking piece 43 and drives the magnetic suction plate 52 to be installed. After the double composite contacts are washed and dried, they move upward on the rotating shaft 4 until they are flush with the bottom cover 45. Then, the second electric telescopic rod 31 is started to drive the receiving unit to move toward the vacuum diffusion welding device 6. The push rod 29 is inserted into the elastic connecting piece 46 and pushes the bottom cover 45 to move to the left to open the vacuum diffusion welding device 6. During the sliding process of the bottom cover 45, the second linear rack 49 inside it meshes with the third gear 44 to drive the material picking piece 43 to flip. When the bottom cover 45 moves to Figure 12 When it is in the position shown, the material picking piece 43 is flipped over to the opening facing downward, and the manipulator 30 holding the double composite contacts also rotates to a horizontal position. At this time, the first electric telescopic rod 26 is started to drive the manipulator 30 to move to the bottom of the material picking piece 43, and the cylinder 51 drives the magnetic plate 52 to move toward the opening of the material picking piece 43, so that the magnetic plate 52 adsorbs the double composite contacts, and the adsorption force of the magnetic plate 52 is used to make the double composite contacts detach from the manipulator 30, and finally the double composite contacts move to the inside of the material picking piece 43. At this time, the second electric telescopic rod 31 drives the bottom cover 45 to return to the initial state. In the process of closing the vacuum diffusion welding equipment 6, the bottom cover 45 again cooperates with the second linear rack 49 and the third gear 44 to restore the material picking part 43 to the initial position. Then the cylinder 51 drives the magnetic suction plate 52 to move upward, so that the double composite contacts are located outside the material picking part 43. The temperature and pressure inside the vacuum diffusion welding equipment 6 are increased to the set value, and the existing oil cylinder inside the vacuum diffusion welding equipment 6 generates a set extrusion pressure on the double composite contacts, causing the workpiece to creep and complete the welding.

[0060] In the description of the present invention, the terms "first", "second", "another", and "yet another" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of the embodiments of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0061] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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 or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0062] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the spirit and scope of the present invention, and the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A three-composite contact processing technology, characterized in that The steps are as follows: Step 1: The tail layer and the copper base layer are subjected to cold pressure welding to form a shape, and then are transported to a vacuum diffusion welding device (6) after being cleaned by a transition transfer mechanism to obtain a double composite contact; Step 2: The double composite contact obtained in Step 1 is subjected to high-temperature diffusion welding with the head rivet layer to obtain a triple composite contact; Among them, the transition transfer mechanism includes a storage box (7), a grasping unit, a second cleaning tank body (8) and a first cleaning tank body (9); The storage box (7) is used to store the double composite contact obtained in Step 1; The grasping unit is used to first transfer the double composite contact in the storage box (7) to the first cleaning tank body (9), then to the second cleaning tank body (8), and finally to the vacuum diffusion welding device (6); Nitric acid alcohol is injected into the first cleaning tank body (9) to perform corrosion cleaning on the welding surface to be welded of the double composite contact; clear water is injected into the second cleaning tank body (8) to perform water washing on the double composite contact after corrosion cleaning; The grasping unit includes a mounting plate (10) that reciprocally slides in the vertical direction and makes a circular motion in the horizontal direction. A strip-shaped groove (27) is formed in the middle of the mounting plate (10) along its length direction, and one side of the strip-shaped groove (27) facing the storage box (7) extends to be communicated with the outside. A rotating sphere (24) is rotatably embedded near the edge of the strip-shaped groove (27). A swinging rod (23) that is fixedly embedded in the rotating sphere (24) along the vertical direction and is adapted to the shape of the strip-shaped groove (27) is fixedly installed inside the rotating sphere (24). A second motor (25) is installed at the top of the swinging rod (23), and a first electric telescopic rod (26) is slidably installed inside. The movable end of the first electric telescopic rod (26) extends to the outside along its rod length direction and is connected with a manipulator (30); a receiving unit for carrying the double composite contact is arranged at one end of the mounting plate (10) facing the storage box (7) along its length direction. The swinging rod (23) rotates counterclockwise around the rotating sphere (24) to drive the receiving unit to move towards the storage box (7) side, so that the double composite contact in the storage box (7) falls into the receiving unit.

2. The three-composite contact processing technology according to claim 1, characterized in that: Two second electric telescopic rods (31) are fixedly installed inside the mounting plate (10) along its length direction. The two second electric telescopic rods (31) are distributed on both sides of the strip-shaped groove (27). The movable end of each second electric telescopic rod (31) is fixedly connected with a first linear rack (32). The first linear rack (32) extends to the outside of the mounting plate (10) along the rod length direction of the second electric telescopic rod (31) and is connected with a material receiving rod (28). A push rod (29) is connected between the ends of the two material receiving rods (28). The two material receiving rods (28) are connected by the push rod (29) to form a receiving unit for carrying the double composite contact.

3. A triple composite contact processing technology according to claim 2, characterized in that: Two first connecting rods (34) are symmetrically arranged on both sides of the mounting plate (10), one end of each of the first connecting rods (34) extending into the interior of the mounting plate (10) and connected to a second gear (33) meshing with the corresponding first linear rack (32), and the other ends of the two first connecting rods (34) are fixedly connected via a connecting shaft (35), and the connecting shaft (35) passes through two bushings (36) arranged on the outer wall of the swing rod (23) and maintains rotational cooperation therewith.

4. A three-composite contact processing technology according to claim 3, characterized in that: The bottom of the material storage box (7) is of a conical structure. The discharge end of the material storage box (7) is integrally formed and connected with a fixed plate (37). A sliding plate (38) is installed on the sliding guide at the bottom of the fixed plate (37). The sliding plate (38) is driven by a push rod (29) in the receiving unit to slide along the fixed plate (37) so that the double composite contacts inside the material storage box (7) fall into the receiving unit. A sliding column (39) is fixedly connected to the side of the sliding plate (38) away from the push rod (29). The extended end of the sliding column (39) extends into the slide groove (40) inside the fixed plate (37) and is coaxially connected to the limit baffle (41). The limit baffle (41) and the slide groove (40) are slidably connected. A spring (42) is also sleeved on the outside of the sliding column (39). One end of the spring (42) is connected to the limit baffle (41), and the other end is connected to the outer wall of the slide groove (40). The direction of the restoring force of the spring (42) is toward the side where the limit baffle (41) is located.

5. A three-composite contact processing technology according to claim 3, characterized in that: The invention also comprises a bottom plate (1), a top plate (3) is arranged above the bottom plate (1), and the top plate (3) is connected to the bottom plate (1) via four supporting legs (2) distributed in a rectangular shape; a rotating shaft (4) is arranged on the top of the bottom plate (1) between the second cleaning tank body (8) and the first cleaning tank body (9) in the vertical direction; the top and bottom of the rotating shaft (4) are respectively rotatably connected to the top plate (3) and the bottom plate (1); a first motor (5) is installed on the top of the top plate (3); the motor shaft of the first motor (5) passes through the top plate (3) along the axial direction of the rotating shaft (4) and is fixedly connected to the rotating shaft (4); a notch is formed on the circumferential surface of the rotating shaft (4) along its length direction; a lead screw (11) is driven and installed in the notch; the mounting plate (10) is slidably sleeved on the rotating shaft (4) via a connecting sleeve (22) and maintains threaded engagement with the lead screw (11) inside the rotating shaft (4).

6. The three-composite contact processing technology according to claim 5, characterized in that: The bottom of the rotating shaft (4) extends downward through the bottom plate (1) and is fixedly connected to a disk (13). A fan-shaped plate (16) is rotatably mounted on the disk surface at the bottom of the disk (13). The arc-shaped end of the fan-shaped plate (16) is slidably connected to an arc-shaped rack (17) via a slide rail (18). A central shaft (19) is rotatably mounted at the center of the bottom of the second cleaning tank (8) and the first cleaning tank (9). The top end of the central shaft (19) extends to the inside of the second cleaning tank (8) / the first cleaning tank (9) and is fixedly connected to a stirring blade (20). The bottom end of the central shaft (19) extends to the inside of the second cleaning tank (8) / the first cleaning tank (9). A first gear (12) meshing with an arc-shaped rack (17) is fixedly sleeved after extending downward to the outside of the second cleaning tank body (8) / the first cleaning tank body (9); a hinged long rod (14) is hingedly connected to the plate surface at the bottom of the fan-shaped plate (16); a hinged short rod (15) is hingedly connected to the end of the hinged long rod (14); an extended end of the hinged short rod (15) is connected to a motor drive fixed to the inside of the disc (13); a limit sleeve (21) is also fixedly sleeved on the rotating shaft (4), and the limit sleeve (21) is kept in rotational cooperation with the top of the bottom plate (1).

7. A three-composite contact processing technology according to claim 3, characterized in that: The bottom of the vacuum diffusion welding device (6) is equipped with a bottom cover (45) through a guide column (50) for sliding guidance. The outer wall of the bottom cover (45) facing the gripping unit is connected to an elastic connecting piece (46). The cross section of the elastic connecting piece (46) along its length direction is a U-shaped structure, and the U-shaped opening faces the gripping unit. The push rod (29) is connected to the bottom cover (45) by extending into the inside of the elastic connecting piece (46) to drive the bottom cover (45) to slide relative to the vacuum diffusion welding device (6). A material picking piece (43) is also rotatably installed inside the diffusion welding device (6). In an initial state, the top of the material picking piece (43) is open, and a cylinder (51) is installed at the bottom. The piston rod of the cylinder (51) extends into the inside of the material picking piece (43) and then drives a magnetic suction plate (52) to be installed. The bottom cover (45) slides relative to the vacuum diffusion welding device (6) so that the opening of the material picking piece (43) is flipped to the bottom, so that the magnetic suction plate (52) absorbs and clamps the double composite contacts in the receiving unit under the drive of the cylinder (51).

8. A triple composite contact processing technology according to claim 7, characterized in that: Both sides of the material taking part (43) are respectively rotatably connected to the inner wall of the vacuum diffusion welding device (6) through second connecting rods (48). A third gear (44) is fixedly sleeved on each second connecting rod (48) near the inner wall of the vacuum diffusion welding device (6). A second linear rack (49) meshing with the third gear (44) is installed on one side of the bottom cover (45) facing the inside of the vacuum diffusion welding device (6), and one side of the second linear rack (49) facing the grasping unit extends to be connected to the outside of the vacuum diffusion welding device (6). One end of the guiding column (50) is fixedly installed with a sealing plug plate (47). One end of the guiding column (50) facing the grasping unit is fixedly connected to the sealing plug plate (47). The projection surface of the sealing plug plate (47) along the length direction of the guiding column (50) can completely cover the projection surface of the second linear rack (49).

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