An automated mechanical welding device in a high-precision vacuum environment

Abstract

The present invention relates to the technical field of vacuum welding, and discloses an automated mechanical welding device in a high-precision vacuum environment, including an equipment housing. A support base is arranged at the center of the bottom of the equipment housing. A static tooling base is fixed to the upper end of the support base. A moving tooling base is movably arranged directly above the static tooling base. A lead screw is rotatably arranged at the upper edge of the static tooling base. A lead screw thread is arranged in the middle of the lead screw. The lower end of the lead screw is fixed to the inner layer of the static tooling base through a first bearing seat. The upper end of the lead screw is fixed to the top of the equipment housing through a first bearing seat. By starting the third servo motor, through a series of transmissions, the coaxial walking gear moves on the gear track, causing the entire welding and loading seat to perform uniform circular motion around the circular track, so that the solder conduit uniformly injects and welds along the outer edge of the weld seam for one week, with higher uniformity, improving the welding quality, and automatically loading materials, saving time and effort.

Description

Technical Field

[0001] The invention relates to the technical field of vacuum welding, and in particular to an automated mechanical welding device in a high-precision vacuum environment. Background Art

[0002] Brazing is the process of connecting two identical or different metal materials, using a material with a lower melting point than the parent material as the brazing filler metal (such as phosphor copper brazing filler metal particles). The brazing flux used in brazing can play a role in wetting and diffusion. The brazing flux can reduce the surface tension between the brazing filler metal and the workpiece, allowing the brazing filler metal to better penetrate into the contact surface of the workpiece. Vacuum brazing is carried out under low pressure or high vacuum conditions. By reducing or eliminating the collision of gas molecules, it can avoid problems such as oxidation, gas corrosion and gas inclusions. At the same time, the vacuum environment can improve the efficiency of heat conduction. After the brazing filler metal is heated to a certain temperature (above 500°C), it flows in a molten state and forms a connection. Therefore, vacuum brazing requires vacuum welding equipment.

[0003] Current vacuum welding equipment has many technical defects when in use. First, the welding surface of the workpiece is easily contaminated with dust during transportation and operation, and dust is also floating in the vacuum chamber of the vacuum welding equipment, which affects the welding quality. Second, the existing solder is manually placed around the welding surface of the workpiece in advance, which is time-consuming and labor-intensive, has a low degree of automation, and has poor placement uniformity, which ultimately leads to uneven welding of the workpiece welding surface. The vacuum chamber of the current vacuum welding equipment is fixed, has a large area, and cannot be adjusted, resulting in a large amount of air to be sucked each time and high production costs.

[0004] To sum up, considering that the existing facilities cannot meet the work requirements, we propose an automated mechanical welding equipment under a high-precision vacuum environment. Summary of the invention

[0005] The main purpose of the present invention is to provide an automated mechanical welding device in a high-precision vacuum environment, which can effectively solve the problems in the background technology.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] An automated mechanical welding device for a high-precision vacuum environment comprises a device housing, a support seat is arranged at the bottom center of the device housing, a static work seat is fixed at the upper end of the support seat, a dynamic work seat is movably arranged directly above the static work seat, a screw rod is rotatably arranged at the upper end of the edge of the static work seat, and a screw rod thread is arranged in the middle of the screw rod.

[0008] As a preferred solution of the automated mechanical welding equipment under a high-precision vacuum environment described in the present invention, the lower end of the screw rod is fixed by the first bearing seat and the inner layer of the static work seat, the upper end of the screw rod is fixed by the first bearing seat and the top of the equipment housing, the upper and lower end surfaces of the dynamic work seat are both provided with guide holes for the screw rod to pass through, the inner layer of the dynamic work seat is provided with an installation groove for connecting the two groups of guide holes, and a screw rod nut sleeve for the screw rod to pass through is fixed in the installation groove.

[0009] As a preferred solution of the automated mechanical welding equipment in a high-precision vacuum environment described in the present invention, a first vacuum chamber is opened inside the static workpiece seat, a No. 1 clamp is arranged at a lower position inside the first vacuum chamber, a support member for clamping by the No. 1 clamp is vertically arranged in the first vacuum chamber, an annular track is installed around the inner wall of the first vacuum chamber near the end position of the static workpiece seat, and the upper and lower end faces of the annular track are provided with limit sliding steps.

[0010] As a preferred solution of the automatic mechanical welding equipment in a high-precision vacuum environment described in the present invention, a welding loading seat is movably arranged on the annular track, and the welding loading seat performs uniform circular motion around the annular track.

[0011] As a preferred solution of the automated mechanical welding equipment in a high-precision vacuum environment described in the present invention, two groups of storage seats are symmetrically installed on the rear side of the static workpiece seat, and the two groups of storage seats are connected by an intermediate seat. A storage groove is opened on the side of each group of storage seats, and a vacuum pump is installed in the storage groove. The suction port of the vacuum pump is connected to the interior of the first vacuum chamber via an exhaust pipe.

[0012] As a preferred solution of the automated mechanical welding equipment under a high-precision vacuum environment described in the present invention, the upper end of the screw rod passes through the upper end face of the equipment housing and is sleeved with a first small gear, one side of the first small gear is meshed with a first large gear, the first large gear is sleeved on the output shaft of a No. 1 servo motor, the No. 1 servo motor is fixedly arranged through the motor housing, and the motor housing is fixed to the upper end face of the equipment housing.

[0013] As a preferred solution of the automated mechanical welding equipment under a high-precision vacuum environment described in the present invention, wherein: a second vacuum chamber is opened inside the dynamic work seat, a No. 2 clamp is installed at the upper position inside the second vacuum chamber, and a shaft member for clamping by the No. 2 clamp is arranged in the second vacuum chamber, the lower end surface of the shaft member and the upper end surface of the support member are welded by this equipment, guide grooves are symmetrically opened on the outer side surface of the dynamic work seat, and guide plates moving in the guide grooves are welded on the outer side surface of the static work seat, and the number of the guide plates is 2 groups.

[0014] As a preferred solution of the automated mechanical welding equipment under a high-precision vacuum environment described in the present invention, wherein: a curved connecting groove is opened in the middle position of the back side of the welding loading seat, and pulleys that respectively contact the limit sliding steps are evenly installed on the upper and lower groove surfaces of the curved connecting groove, and the number of the pulleys is preferably 3-10 groups, and a driving shaft is rotatably arranged at the lower position inside the welding loading seat, and the driving shaft is fixed by two groups of second bearing seats and the inner wall of the welding loading seat, and the part of the driving shaft that passes downward through the welding loading seat is sleeved with a traveling gear, and a gear track is fixed around the inner wall of the first vacuum chamber and below the annular track, and the gear track is meshed with the traveling gear, and the middle part of the driving shaft is sleeved with a driving gear.

[0015] As a preferred solution of the automated mechanical welding equipment under a high-precision vacuum environment described in the present invention, wherein: a loading outer cylinder is horizontally fixed on the upper end surface of the welding loading seat, a solder conduit is installed at a lower position on the end surface of the loading outer cylinder, the solder conduit extends obliquely outward, an injection nozzle is arranged at the end of the solder conduit, the position of the injection nozzle is close to the weld between the shaft and the support, and the straight-line distance is controlled within the range of 1cm-2cm, a ceramic baffle is connected to the end of the solder conduit near the injection nozzle, and a high-temperature heating inner cylinder is rotatably arranged inside the loading outer cylinder.

[0016] As a preferred solution of the automated mechanical welding equipment under a high-precision vacuum environment described in the present invention, the outer side surface of the high-temperature heating inner cylinder is fixed by two groups of connecting bearings and the inner wall of the feeding outer cylinder, the high-temperature heating inner cylinder rotates around the feeding outer cylinder, a heating chamber is opened inside the high-temperature heating inner cylinder, a plurality of solder particles are stored in the heating chamber, a high-temperature heater is installed in the heating chamber, the heating temperature of the high-temperature heater is 450℃-600℃, a discharge pipe connected to the heating chamber is fixed at the lower position of the front end surface of the high-temperature heating inner cylinder, the discharge pipe and the solder conduit correspond to each other, a second large gear is sleeved at the middle position of the outer side surface of the high-temperature heating inner cylinder, a second small gear is meshed at the lower end of the second large gear, a gap is opened at the bottom of the feeding outer cylinder for the second small gear to extend into, the second small gear is sleeved on the output shaft of the uniform speed motor, and the uniform speed motor is horizontally fixed inside the welding feeding seat.

[0017] As a preferred solution of the automated mechanical welding equipment under a high-precision vacuum environment described in the present invention, two groups of rollers are symmetrically installed inside the middle seat, and the lower ends of the two groups of rollers are fixed by the third bearing seat and the middle seat, one group of the rollers extends downward and is connected with a coupling, and the coupling is connected to the second servo motor, and the middle parts of the two groups of rollers are sleeved with synchronous gears, and the two groups of synchronous gears are meshed with each other, and one group of the rollers passes through the upper end surface of the middle seat and is horizontally welded with a first rocker arm, and the first rocker arm is located on the upper end surface of one group of storage seats, and a circular protective cover is welded on the end of the first rocker arm, and a dust filter cloth is installed inside the circular protective cover.

[0018] As a preferred solution of the automated mechanical welding equipment under a high-precision vacuum environment described in the present invention, wherein: another group of the rotating rollers is horizontally welded with a second rocker arm through the upper end surface of the middle seat, the second rocker arm is located on the upper end surface of another group of storage seats, an internal air flow channel is opened inside the second rocker arm, and a nozzle connected to the internal air flow channel is installed on the end of the second rocker arm, the circular protective cover and the nozzle move towards each other with the first rocker arm and the second rocker arm, and are respectively located on both sides of the weld, and one end of the second rocker arm away from the nozzle is connected to a corrugated telescopic tube, one group of the storage seats is installed with a gas supply tank, the upper end surface of the gas supply tank is installed with a gas supply joint, an electromagnetic pulse valve is installed in the gas supply joint, and the gas supply joint is connected to the corrugated telescopic tube.

[0019] As a preferred solution of the automated mechanical welding equipment under a high-precision vacuum environment described in the present invention, wherein: an adjustment groove is opened inside the welding feeding seat, an adjustment platform is movably arranged in the adjustment groove, the feeding outer cylinder and the uniform speed motor are both located on the adjustment platform, short shafts are welded at the middle position of the two side surfaces of the adjustment platform, the number of the short shafts is 2 groups, each group of the short shafts is fixed by a damping bearing and the groove wall of the adjustment groove, a rotating groove is opened at the rear position of the bottom of the adjusting platform, and tension spring grooves are symmetrically opened on both sides of the rotating groove at the bottom of the adjusting platform, and the number of the tension spring grooves is 2 groups.

[0020] As a preferred solution of the automated mechanical welding equipment under a high-precision vacuum environment described in the present invention, wherein: a connecting block is hingedly arranged in the rotating groove, a hydraulic rod is welded to the lower end of the connecting block, the hydraulic rod extends upward from the inside of the hydraulic cylinder, and a hinged bracket is installed on the lower end surface of the hydraulic cylinder, a positioning column is installed in the hinged bracket, the positioning column is fixed in the middle position of the bottom bracket, the bottom bracket is riveted to the bottom of the adjusting groove, and tension springs are movably arranged in the two groups of tension spring grooves, hooks are installed at both ends of the tension springs, and the two groups of hooks are respectively connected to the groove wall of the tension spring groove and the upper end surface of the bottom bracket.

[0021] As a preferred solution of the automatic mechanical welding equipment in a high-precision vacuum environment described in the present invention, the first pinion is located inside the protective shell, and the protective shell is welded to the outer side of the motor shell.

[0022] As a preferred solution of the automated mechanical welding equipment in a high-precision vacuum environment described in the present invention, the shaft member and the support member are respectively located at the center of the first vacuum chamber and the second vacuum chamber.

[0023] As a preferred solution of the automated mechanical welding equipment in a high-precision vacuum environment described in the present invention, a third pinion is meshed on one side of the driving gear, the third pinion is sleeved on the output shaft of the No. 3 servo motor, and the No. 3 servo motor is vertically fixed inside the welding loading base.

[0024] As a preferred solution of the automated mechanical welding equipment under a high-precision vacuum environment described in the present invention, a feeding elbow is installed on the rear end face of the high-temperature heating inner cylinder, a material receiving groove is opened on the upper end face of the welding feeding seat, and the feeding elbow is located in the material receiving groove.

[0025] As a preferred solution of the automatic mechanical welding equipment in a high-precision vacuum environment described in the present invention, the upper end of the solder conduit is located inside the feeding outer cylinder and is provided with a docking bucket.

[0026] As a preferred solution of the automatic mechanical welding equipment in a high-precision vacuum environment described in the present invention, an air compressor is installed on the side of the gas supply tank.

[0027] As a preferred solution of the automatic mechanical welding equipment in a high-precision vacuum environment described in the present invention, the discharge pipe is equipped with a discharge valve.

[0028] As a preferred solution of the automatic mechanical welding equipment in a high-precision vacuum environment described in the present invention, the bellows expansion tube is connected to the inner flow channel.

[0029] The present invention provides an automated mechanical welding device in a high-precision vacuum environment through improvement, which has the following significant improvements and advantages compared with the prior art:

[0030] (1) Start the No. 2 servo motor. After a series of transmissions, the first swing arm and the second swing arm move toward each other and move to the position between the first vacuum chamber and the second vacuum chamber respectively, so that the nozzle approaches the shaft and the support. The clean gas in the gas supply tank passes through the bellows and the internal gas flow channel in turn, and is ejected outward from the nozzle to act on the welding surface of the shaft and the support, cleaning the dust on the surface and the dust floating in the spacing space, and allowing the dust filter cloth to absorb the scattered dust in time, so as to achieve the effect of automatic dust removal and dust absorption, thereby improving the welding quality.

[0031] (2) Start the No. 3 servo motor, which causes the coaxial travel gear to move on the gear track after a series of transmissions, causing the entire welding loading seat to make uniform circular motion around the circular track, so that the solder conduit can be evenly injected and welded along the outer edge of the weld, with higher uniformity, improved welding quality, and automatic loading, saving time and effort.

[0032] (3) By starting the uniform speed motor, the second small gear is driven to rotate, and through meshing deceleration, the second large gear is driven to rotate, causing the high-temperature heating inner cylinder to rotate around the feeding outer cylinder, so that the particles inside are continuously turned over and fully heated, thereby improving the heating uniformity and efficiency.

[0033] (4) Design an adjustment table. On the one hand, extend the hydraulic rod to push the adjustment table to flip a certain angle around two sets of damping bearings, so that the high-temperature heating inner cylinder in the adjustment table tilts from a horizontal state toward the discharge pipe. Then, let the high-temperature heating inner cylinder rotate to accelerate all the molten solder in the heating chamber to flow to one side of the discharge pipe, thereby reducing the residual amount on the inner wall and achieving a self-cleaning effect. On the other hand, extend or retract the pressure rod to cause the adjustment table to flip to different angles, thereby changing the inclination of the solder conduit, thereby controlling the flow rate of the molten solder in the tube and improving the injection quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 This is a schematic diagram of the overall structure of one direction of an automated mechanical welding device in a high-precision vacuum environment of the present invention;

[0035] Figure 2 It is a schematic diagram of the overall structure of another direction of an automated mechanical welding device in a high-precision vacuum environment of the present invention;

[0036] Figure 3 It is a schematic diagram of the specific structure of the static tooling seat of the present invention;

[0037] Figure 4 It is a schematic diagram of the transmission structure of the screw rod of the present invention;

[0038] Figure 5 This is a schematic diagram of the specific structure of the starting mounting seat of the present invention;

[0039] Figure 6 It is a schematic diagram of the upper end surface structure of the welding loading seat of the present invention;

[0040] Figure 7 This is a schematic diagram of the lower end surface structure of the welding loading seat of the present invention;

[0041] Figure 8 It is a schematic diagram of the transmission structure of the travel gear of the present invention;

[0042] Fig. 9 This is a schematic diagram of the external structure of the high temperature heating inner cylinder of the present invention;

[0043] Fig.10 Schematic diagram of the specific structure of the first swing arm and the second swing arm of the present invention;

[0044] Fig.11 It is a schematic diagram of the transmission structure of the first swing rod and the second swing rod of the present invention;

[0045] Fig.12 This is a schematic diagram of the installation position of the adjustment platform of the present invention;

[0046] Fig.13 It is a schematic diagram of the external structure of the adjustment platform of the present invention.

[0047] In the figure: 1. Equipment housing; 2. Support seat; 3. Static tooling seat; 4. Dynamic tooling seat; 5. Intermediate seat; 6. Storage seat; 10. Screw; 11. First bearing seat; 12. Guide hole; 13. Mounting groove; 14. Screw thread; 15. Screw nut sleeve; 16. First small gear; 17. First large gear; 18. No. 1 servo motor; 20. First vacuum chamber; 21. No. 1 clamp; 22. Support member; 23. Annular track; 24. Limit slide Step; 25, gear track; 26, guide plate; 30, welding feeder seat; 31, curved connection groove; 32, pulley; 33, drive shaft; 34, second bearing seat; 35, walking gear; 36, drive gear; 37, third pinion; 38, servo motor No. 3; 40, feeding outer cylinder; 41, solder guide tube; 42, injection nozzle; 43, ceramic baffle; 44, high temperature heating inner cylinder; 45, connecting bearing; 46, discharge pipe; 47, second Large gear; 48, second small gear; 49, uniform speed motor; 50, second vacuum chamber; 51, second clamp; 52, shaft; 53, guide groove; 56, air supply tank; 57, air supply joint; 58, bellows; 59, air compressor; 60, roller; 61, third bearing seat; 62, synchronous gear; 63, second servo motor; 64, coupling; 65, first swing arm; 66, circular protective cover; 67, dust filter cloth; 68, second swing arm ; 69. Nozzle; 70. Adjustment slot; 71. Adjustment table; 72. Short shaft; 73. Damping bearing; 74. Tension spring slot; 75. Rotation slot; 80. Bottom bracket; 81. Positioning column; 82. Hydraulic cylinder; 83. Articulated bracket; 84. Hydraulic rod; 85. Connecting block; 86. Tension spring; 87. Hook; 90. Storage slot; 91. Vacuum pump; 92. Exhaust pipe; 93. Protective shell; 94. Motor shell; 95. Feeding elbow; 96. Receiving trough. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0049] Embodiment 1

[0050] like Figure 1-Figure 11As shown, this embodiment provides an automated mechanical welding equipment under a high-precision vacuum environment, including an equipment housing 1, a support seat 2 is arranged at the bottom center position of the equipment housing 1, the support seat 2 plays a supporting role, a static work seat 3 is fixed to the upper end of the support seat 2, a dynamic work seat 4 is movably arranged directly above the static work seat 3, a screw rod 10 is rotatably arranged at the upper end of the edge of the static work seat 3, and a screw rod thread 14 is arranged in the middle of the screw rod 10.

[0051] Specifically, the lower end of the screw rod 10 is fixed by the first bearing seat 11 and the inner layer of the static tooling seat 3, and the upper end of the screw rod 10 is fixed by the first bearing seat 11 and the top of the equipment housing 1. The upper and lower end surfaces of the dynamic tooling seat 4 are provided with guide holes 12 for the screw rod 10 to pass through, and the guide holes 12 play a role of limiting guide. Figure 2 , Figure 4 and Figure 5 shown.

[0052] Among them, the inner layer of the work seat 4 is provided with a mounting groove 13 for connecting the two sets of guide holes 12, and a screw nut sleeve 15 (a screw nut sleeve 15 is provided with a spiral motion nut) for the screw 10 to pass through is fixed in the mounting groove 13. Figure 4 and Figure 5 shown.

[0053] Among them, the upper end of the screw rod 10 passes through the upper end surface of the device housing 1 and is sleeved with a first small gear 16, the first small gear 16 is located inside the protective shell 93, the protective shell 93 is welded to the outer side of the motor housing 94, and one side of the first small gear 16 is meshed with a first large gear 17, the first large gear 17 is sleeved on the output shaft of the No. 1 servo motor 18, the No. 1 servo motor 18 passes through the motor housing 94 and is fixed, and the motor housing 94 is fixed to the upper end surface of the device housing 1, as shown in FIG. Figure 2 and Figure 4 shown.

[0054] Further, a first vacuum chamber 20 is provided inside the static workbench 3, a No. 1 clamp 21 is provided at a lower position in the first vacuum chamber 20, and a support member 22 for clamping the No. 1 clamp 21 is vertically provided in the first vacuum chamber 20. The No. 1 clamp 21 is a prior art and will not be described in detail. Figure 3 shown.

[0055] Among them, a circular track 23 is installed at the end position of the inner wall of the first vacuum chamber 20 near the static tooling seat 3, and the upper and lower end surfaces of the circular track 23 are both provided with limit sliding steps 24, and the outer circumferential surface of the limit sliding step 24 is a sliding surface. A welding loading seat 30 for solder loading is movably arranged on the circular track 23, and the welding loading seat 30 performs uniform circular motion around the circular track 23, such as Figure 3 shown.

[0056] Furthermore, a curved connecting groove 31 is provided in the middle of the back of the welding loading seat 30, and pulleys 32 are evenly installed on the upper and lower groove surfaces of the curved connecting groove 31, respectively contacting the limit sliding step 24, the upper groove surface pulley 32 contacts the upper limit sliding step 24, and the lower groove surface pulley 32 contacts the lower limit sliding step 24, thereby ensuring that the welding loading seat 30 is restricted on the annular track 23, as shown in FIG. Figure 7 shown.

[0057] In this embodiment, a driving shaft 33 is rotatably provided at the lower position of the welding loading seat 30. The driving shaft 33 is fixed by two sets of second bearing seats 34 and the inner wall of the welding loading seat 30. The driving shaft 33 rotates around the two sets of second bearing seats 34. The driving shaft 33 passes downward through the welding loading seat 30 and is sleeved with a traveling gear 35. Figure 7 and Figure 8 shown.

[0058] A gear track 25 is fixed around the inner wall of the first vacuum chamber 20 and below the annular track 23. The gear track 25 is evenly distributed with teeth. The gear track 25 is meshed with a traveling gear 35. A driving gear 36 is sleeved in the middle of the driving shaft 33. Figure 3 and Figure 7 shown.

[0059] Furthermore, a third pinion 37 is meshed with one side of the driving gear 36, and the third pinion 37 is sleeved on the output shaft of the third servo motor 38, and the third servo motor 38 is vertically fixed inside the welding loading seat 30, such as Figure 8 shown.

[0060] Furthermore, a feeding outer cylinder 40 is horizontally fixed to the upper end surface of the welding feeding seat 30, and a solder conduit 41 is installed at a lower position on the front end surface of the feeding outer cylinder 40, and the solder conduit 41 extends outward obliquely, such as Figure 6 shown.

[0061] The end of the solder conduit 41 is provided with an injection nozzle 42, and the end of the solder conduit 41 is connected to a ceramic material blocking piece 43 near the injection nozzle 42, and the ceramic material blocking piece 43 plays the role of blocking and splashing. The inner rotation of the feeding outer cylinder 40 is provided with a high-temperature heating inner cylinder 44, such as Figure 6 shown.

[0062] Furthermore, the outer side of the high temperature heating inner cylinder 44 is fixed by two sets of connecting bearings 45 and the inner wall of the feeding outer cylinder 40, and the high temperature heating inner cylinder 44 rotates around the feeding outer cylinder 40. Figure 6 and Fig. 9 shown.

[0063] A heating chamber is provided inside the high-temperature heating inner cylinder 44, a number of solder particles are stored in the heating chamber, a high-temperature heater is installed in the heating chamber, a discharge pipe 46 connected to the heating chamber is fixed at the lower position of the front end surface of the high-temperature heating inner cylinder 44, a discharge valve is installed in the discharge pipe 46, the initial position of the discharge pipe 46 corresponds to the solder conduit 41 (the discharge pipe 46 and the solder conduit 41 are both made of non-stick and heat-resistant materials), the upper end of the solder conduit 41 is located inside the feeding outer cylinder 40 and is provided with a docking bucket, which plays the role of receiving and centrally guiding the materials, such as Fig. 9 shown.

[0064] Among them, a second large gear 47 is sleeved at the middle position of the outer side surface of the high-temperature heating inner cylinder 44, and a second small gear 48 is meshed at the lower end of the second large gear 47. A gap for the second small gear 48 to extend into is opened at the bottom of the feeding outer cylinder 40. The second small gear 48 is sleeved on the output shaft of the uniform speed motor 49, and the uniform speed motor 49 is horizontally fixed inside the welding feeding seat 30, such as Fig. 9 shown.

[0065] Further, a second vacuum chamber 50 is provided inside the workpiece holder 4, a second clamp 51 is installed at an upper position in the second vacuum chamber 50, and a shaft 52 for clamping the second clamp 51 is provided in the second vacuum chamber 50. The second clamp 51 is a prior art and will not be described in detail. Figure 5 shown.

[0066] The lower end surface of the shaft member 52 and the upper end surface of the support member 22 are welded by the present device, and the shaft member 52 and the support member 22 are located at the center of the first vacuum chamber 20 and the second vacuum chamber 50 respectively.

[0067] The outer side of the movable work seat 4 is symmetrically provided with guide grooves 53, and the outer side of the static work seat 3 is welded with a guide plate 26 that moves in the guide groove 53, which plays a role of limiting guide. Figure 4 and Figure 5 shown.

[0068] Furthermore, the injection nozzle 42 is located close to the weld between the shaft 52 and the support member 22 .

[0069] Furthermore, two groups of storage seats 6 are symmetrically installed on the rear side of the static tooling seat 3, and the two groups of storage seats 6 are connected by an intermediate seat 5, such as Figure 1 and Figure 2 shown.

[0070] Each set of storage seats 6 has a storage groove 90 on its side, a vacuum pump 91 is installed in the storage groove 90, and the suction port of the vacuum pump 91 is connected to the interior of the first vacuum chamber 20 via a suction pipe 92. Figure 1 and Figure 2 shown.

[0071] Among them, two groups of rollers 60 are symmetrically installed inside the middle seat 5. The lower ends of the two groups of rollers 60 are fixed by the third bearing seat 61 and the middle seat 5. One group of rollers 60 extends downward and is connected with a coupling 64. The coupling 64 is connected to the second servo motor 63. The second servo motor 63 is vertically arranged. The middle parts of the two groups of rollers 60 are sleeved with synchronous gears 62. The two groups of synchronous gears 62 are meshed with each other. Fig.10 and Fig.11 shown.

[0072] In this embodiment, one group of rollers 60 passes through the upper end surface of the middle seat 5 and is horizontally welded with a first swing rod 65, the first swing rod 65 is located on the upper end surface of one group of storage seats 6, and a circular protective cover 66 is welded to the end of the first swing rod 65 (a plurality of ventilation holes are evenly opened on the circular protective cover 66), and a dust filter cloth 67 is installed inside the circular protective cover 66. The dust filter cloth 67 is regularly disassembled and replaced, such as Figure 1 , Fig.10 and Fig.11 shown.

[0073] In this embodiment, another set of rollers 60 passes through the upper end surface of the middle seat 5 and is horizontally welded with a second swing rod 68, which is located on the upper end surface of another set of storage seats 6. An inner flow channel is opened inside the second swing rod 68, and a nozzle 69 connected to the inner flow channel is installed at the end of the second swing rod 68. Figure 2 , Fig.10 and Fig.11 shown.

[0074] The circular protective cover 66 and the nozzle 69 move toward each other with the first swing arm 65 and the second swing arm 68, and are respectively located on both sides of the weld. The nozzle 69 faces the weld direction, and the air flow speed of the nozzle 69 is limited, which will not interfere with the dust filter cloth 67. Fig.10 and Fig.11 shown.

[0075] Furthermore, one end of the second swing arm 68 away from the nozzle 69 is connected to a bellows telescopic tube 58, which can be extended and retracted with the movement of the second swing arm 68, and the bellows telescopic tube 58 is connected to the inner flow channel. An air supply tank 56 is installed inside one group of the storage seats 6, and an air compressor 59 is installed on the side of the air supply tank 56. An air supply connector 57 is installed on the upper end surface of the air supply tank 56, and an electromagnetic pulse valve is installed in the air supply connector 57. The air supply connector 57 is connected to the bellows telescopic tube 58, as shown in FIG. Fig.10 and Fig.11 shown.

[0076] Furthermore, a feeding elbow 95 is installed on the rear end face of the high temperature heating inner cylinder 44, and welding particles are added through the feeding elbow 95 to enter the cylinder. A receiving groove 96 is opened on the upper end face of the welding feeding seat 30, and the feeding elbow 95 is located in the receiving groove 96. Figure 6 shown.

[0077] When the present embodiment is used, the support member 22 is first fixed in the center by the No. 1 clamp 21, and the shaft member 52 is fixed in the center by the No. 2 clamp 51. At this time, the No. 2 servo motor 63 is first started to drive one set of rollers 60 to rotate, and the other set of rollers 60 is rotated in the opposite direction through the meshing action of the two sets of synchronous gears 62, so that the first swing rod 65 and the second swing rod 68 move toward each other, respectively, and move from the upper end surface of the storage seat 6 to the position between the first vacuum chamber 20 and the second vacuum chamber 50, so that the nozzle 69 is close to the shaft member 52 and the support member 22 (at this time, the shaft member 52 and the support member 22 are close to each other). 22), and the circular protective cover 66 surrounds the outer side of the lower end of the shaft 52 and the upper end of the support 22. At this time, the electromagnetic pulse valve is opened, and the clean gas in the gas supply tank 56 passes through the corrugated telescopic tube 58 and the internal gas flow channel in turn, and is ejected outward from the nozzle 69 to act on the welding surface of the shaft 52 and the support 22 to clean up the dust on the surface (as well as the dust floating in the spacing space). The dust filter cloth 67 on the circular protective cover 66 absorbs the scattered dust in time, and then the first swing arm 65 and the second swing arm 68 make opposite movements and return to their original positions.

[0078] Then start the No. 1 servo motor 18, which drives the first large gear 17 to rotate, and rotates the first small gear 16 through meshing, causing the screw 10 to rotate, and the screw nut sleeve 15 moves along the screw 10 (the screw nut in the screw nut sleeve 15 and the screw thread 14 interact with each other), driving the dynamic tooling seat 4 to drop linearly until the lower end surface of the dynamic tooling seat 4 and the upper end surface of the static tooling seat 3 fit together to achieve sealing. At this time, a weld is formed between the shaft 52 and the support 22, and the weld is close to the injection nozzle 42. At this time, let the two sets of vacuum pumps 91 work, and use two sets of exhaust pipes 92 to suck the air in the vacuum chamber (the area of ​​the vacuum chamber is minimized and the suction volume is reduced) to create a vacuum welding environment.

[0079] At the same time, the high-temperature heater is operated to heat the solder particles in the heating chamber to make them molten solder. During the heating process, the uniform-speed motor 49 is started to drive the second small gear 48 to rotate, and the second large gear 47 is driven to rotate through meshing deceleration, causing the high-temperature heating inner cylinder 44 to rotate around the feeding outer cylinder 40, so that the particles inside are continuously turned over and fully heated, thereby improving the heating uniformity and efficiency.

[0080] After heating, open the discharge valve on the discharge pipe 46, and slowly release the molten solder into the docking bucket on the solder conduit 41. The fluidity of the molten solder in the vacuum environment is enhanced, and it flows along the solder conduit 41, and enters the outer edge of the weld from the injection nozzle 42 in a parabolic motion path, moistening the gap, and flowing inward by capillary to fill. At the same time, start the No. 3 servo motor 38 to drive the third pinion 37 to rotate, and drive the driving gear 36 to rotate through meshing reduction, causing the coaxial running gear 35 to move on the gear track 25, causing the entire welding loading seat 30 to make uniform circular motion around the annular track 23 (several groups of pulleys 32 slide on the limit slide 24), so that the solder conduit 41 is evenly injected and welded along the outer edge of the weld, and then the welded workpiece is cooled and then taken out.

[0081] Embodiment 2

[0082] On the basis of the first embodiment, on the one hand, the molten solder in the high temperature heating inner cylinder 44 is not discharged cleanly, and a small part of it is adsorbed on the inner wall of the high temperature heating inner cylinder 44, resulting in residue. On the other hand, the flow rate of the solder in the solder conduit 41 cannot be effectively controlled, resulting in too much or too little injection per unit time. In order to solve the above technical problems, we have the following design, such as Figure 12-13 shown.

[0083] Specifically, an adjustment slot 70 is provided inside the welding feeder seat 30, and an adjustment platform 71 is movably provided inside the adjustment slot 70. The feeder outer cylinder 40 and the constant speed motor 49 are both located on the adjustment platform 71. Fig.12 and Fig.13 shown.

[0084] Among them, short shafts 72 are welded at the middle positions of the two sides of the adjustment platform 71, and each group of short shafts 72 is fixed by a damping bearing 73 and the groove wall of the adjustment groove 70. The damping bearing 73 generates a certain damping force on the short shaft 72 to prevent the adjustment platform 71 from rotating. Fig.13 shown.

[0085] Furthermore, a rotation slot 75 is provided at the rear of the bottom of the adjusting platform 71, and tension spring slots 74 are symmetrically provided at the bottom of the adjusting platform 71 and on both sides of the rotation slot 75. Fig.13 shown.

[0086] Among them, a connecting block 85 is hingedly provided in the rotating groove 75, and the connecting block 85 moves in the rotating groove 75. A hydraulic rod 84 is welded to the lower end of the connecting block 85, and the hydraulic rod 84 extends upward from the inside of the hydraulic cylinder 82. A hinge bracket 83 is installed on the lower end surface of the hydraulic cylinder 82, and a positioning column 81 is installed in the hinge bracket 83. The two move relative to each other, and the positioning column 81 is fixed at the middle position of the bottom bracket 80. The bottom bracket 80 is riveted to the bottom of the adjustment groove 70, as shown in FIG. Fig.13 shown.

[0087] Among them, the two sets of tension spring grooves 74 are both movably provided with tension springs 86 (the tension spring grooves 74 have sufficient space for the tension springs 86 to move), the tension springs 86 are in a stretched state, providing tension to act on the entire adjustment platform 71, ensuring the stability of its movement and maintaining the stability of the adjustment platform 71, and hooks 87 are installed at both ends of the tension spring 86, and the two sets of hooks 87 are respectively connected to the groove wall of the tension spring groove 74 and the upper end surface of the bottom bracket 80 (the left and right sides of the bottom bracket 80 are symmetrical), and the connection method is a movable connection, such as Fig.13 shown.

[0088] When this embodiment is in use, when discharging the molten solder, the hydraulic rod 84 is first extended, and the connecting block 85 and the adjusting platform 71 interact with each other, pushing the adjusting platform 71 to flip around the two sets of damping bearings 73 at a certain angle, so that the high-temperature heating inner cylinder 44 in the adjusting platform 71 is tilted from a horizontal state toward the direction of the discharge pipe 46, and then the high-temperature heating inner cylinder 44 is rotated to accelerate all the molten solder in the heating chamber to flow to one side of the discharge pipe 46, thereby gathering and reducing the residual amount on the inner wall.

[0089] During the injection process, the hydraulic rod 84 is extended or retracted to cause the adjustment table 71 to flip to different angles, thereby changing the inclination of the solder conduit 41 (the greater the inclination, the faster the molten solder flows), thereby controlling the flow rate of the molten solder in the tube.

[0090] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0091] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automated mechanical welding device in a high-precision vacuum environment, comprising a device housing (1), characterized in that: A support seat (2) is provided at the center of the bottom of the device housing (1); a static work seat (3) is fixed at the upper end of the support seat (2); a dynamic work seat (4) is movably provided directly above the static work seat (3); a screw rod (10) is rotatably provided at the upper end of the edge of the static work seat (3); guide holes (12) for the screw rod (10) to pass through are provided on the upper and lower end surfaces of the dynamic work seat (4); a mounting groove (13) for connecting the two groups of guide holes (12) is provided in the inner layer of the dynamic work seat (4); a screw rod nut sleeve (15) for the screw rod (10) to pass through is fixed in the mounting groove (13); A first vacuum chamber (20) is provided inside the static workpiece seat (3), a No. 1 clamp (21) is provided at a lower position inside the first vacuum chamber (20), a support member (22) for clamping by the No. 1 clamp (21) is vertically provided inside the first vacuum chamber (20), an annular track (23) is installed around the inner wall of the first vacuum chamber (20) near the end of the static workpiece seat (3), the upper and lower end surfaces of the annular track (23) are both provided with limit sliding steps (24), and a welding loading seat (30) for loading solder is movably provided on the annular track (23); Two groups of storage seats (6) are symmetrically installed on the rear side of the static tooling seat (3), and a storage groove (90) is opened on the side of each group of the storage seats (6), and a vacuum pump (91) is installed in the storage groove (90); The two groups of storage seats (6) are connected via an intermediate seat (5), two groups of rollers (60) are symmetrically mounted inside the intermediate seat (5), the middle parts of the two groups of rollers (60) are sleeved with synchronous gears (62), the two groups of synchronous gears (62) are meshed with each other, one group of rollers (60) passes through the upper end surface of the intermediate seat (5) and is horizontally welded with a first swing rod (65), the end of the first swing rod (65) is welded with a circular protective cover (66), and a dust filter cloth (67) is mounted inside the circular protective cover (66); Another group of the rollers (60) pass through the upper end surface of the middle seat (5) and are horizontally welded with a second rocker arm (68); an internal air flow passage is provided inside the second rocker arm (68); a nozzle (69) connected to the internal air flow passage is installed at the end of the second rocker arm (68); a corrugated telescopic tube (58) is connected to the end of the second rocker arm (68) away from the nozzle (69); a gas supply tank (56) is installed inside one group of the storage seats (6); a gas supply connector (57) is installed on the upper end surface of the gas supply tank (56); and an electromagnetic pulse valve is installed in the gas supply connector (57).

2. The high-precision automated mechanical welding equipment in a vacuum environment according to claim 1, characterized in that: A screw thread (14) is provided in the middle of the screw rod (10); the lower end of the screw rod (10) is fixed by the first bearing seat (11) and the inner layer of the static tooling seat (3); the upper end of the screw rod (10) is fixed by the first bearing seat (11) and the top of the equipment housing (1); the welding loading seat (30) performs uniform circular motion around the annular track (23); and the suction port of the vacuum pump (91) is connected to the interior of the first vacuum chamber (20) via the suction pipe (92).

3. The automatic mechanical welding equipment in a high-precision vacuum environment according to claim 2, characterized in that: The lower ends of the two groups of rollers (60) are fixed by a third bearing seat (61) and an intermediate seat (5); one group of rollers (60) extends downward and is connected to a coupling (64); the coupling (64) is connected to a second servo motor (63); the first swing arm (65) is located on the upper end surface of one group of storage seats (6); the second swing arm (68) is located on the upper end surface of the other group of storage seats (6); the circular protective cover (66) and the nozzle (69) move toward each other along with the first swing arm (65) and the second swing arm (68); and are respectively located on both sides of the weld; the air supply joint (57) is connected to the corrugated telescopic tube (58).

4. The automatic mechanical welding equipment in a high-precision vacuum environment according to claim 3, characterized in that: The upper end of the screw rod (10) passes through the upper end surface of the device housing (1) and is sleeved with a first small gear (16); one side of the first small gear (16) is meshed with a first large gear (17); the first large gear (17) is sleeved on the output shaft of a No. 1 servo motor (18); the No. 1 servo motor (18) passes through the motor housing (94) and is fixedly arranged; the motor housing (94) is fixed to the upper end surface of the device housing (1).

5. The automatic mechanical welding equipment in a high-precision vacuum environment according to claim 4, characterized in that: A second vacuum chamber (50) is provided inside the dynamic work seat (4), a second clamp (51) is installed at an upper position inside the second vacuum chamber (50), a shaft member (52) for clamping by the second clamp (51) is provided inside the second vacuum chamber (50), a lower end surface of the shaft member (52) and an upper end surface of the support member (22) are welded by means of the present device, guide grooves (53) are symmetrically provided on the outer side surface of the dynamic work seat (4), and a guide plate (26) moving in the guide groove (53) is welded on the outer side surface of the static work seat (3).

6. The automatic mechanical welding equipment in a high-precision vacuum environment according to claim 5, characterized in that: A curved connecting groove (31) is provided in the middle of the back side of the welding loading seat (30), and pulleys (32) are evenly mounted on the upper and lower groove surfaces of the curved connecting groove (31) and respectively contact the limit sliding steps (24). A driving shaft (33) is rotatably arranged at the lower position inside the welding loading seat (30), and the driving shaft (33) is fixed by two sets of second bearing seats (34) and the inner wall of the welding loading seat (30). A traveling gear (35) is sleeved on the part of the driving shaft (33) that passes downward through the welding loading seat (30), and a gear track (25) is fixed around the inner wall of the first vacuum chamber (20) and below the annular track (23), and the gear track (25) is meshed with the traveling gear (35), and a driving gear (36) is sleeved on the middle part of the driving shaft (33).

7. The automatic mechanical welding equipment in a high-precision vacuum environment according to claim 6, characterized in that: A loading outer cylinder (40) is horizontally fixed to the upper end surface of the welding loading seat (30), and a solder conduit (41) is installed at a lower position of the end surface of the loading outer cylinder (40). The solder conduit (41) extends outward at an angle, and an injection nozzle (42) is arranged at the end of the solder conduit (41). The injection nozzle (42) is located close to the weld between the shaft (52) and the support (22). A ceramic baffle plate (43) is connected to the end of the solder conduit (41) near the injection nozzle (42), and a high-temperature heating inner cylinder (44) is rotatably arranged inside the loading outer cylinder (40).

8. The automatic mechanical welding equipment in a high-precision vacuum environment according to claim 7, characterized in that: The outer side surface of the high-temperature heating inner cylinder (44) is fixed by two sets of connecting bearings (45) and the inner wall of the feeding outer cylinder (40). The high-temperature heating inner cylinder (44) rotates around the feeding outer cylinder (40). A heating cavity is provided inside the high-temperature heating inner cylinder (44). A plurality of solder particles are stored in the heating cavity. A high-temperature heater is installed in the heating cavity. A discharge pipe (46) communicating with the heating cavity is fixed at a lower position on the front end surface of the high-temperature heating inner cylinder (44). The discharge pipe ( 46) corresponds to the solder conduit (41), a second large gear (47) is sleeved at the middle position of the outer side surface of the high-temperature heating inner cylinder (44), a second small gear (48) is meshed at the lower end of the second large gear (47), a gap is provided at the bottom of the feeding outer cylinder (40) for the second small gear (48) to extend into, the second small gear (48) is sleeved on the output shaft of the uniform speed motor (49), and the uniform speed motor (49) is horizontally fixed inside the welding feeding seat (30).

9. The automatic mechanical welding equipment in a high-precision vacuum environment according to claim 8, characterized in that: An adjustment groove (70) is provided inside the welding loading seat (30), and an adjustment platform (71) is movably arranged inside the adjustment groove (70). The loading outer cylinder (40) and the uniform speed motor (49) are both located on the adjustment platform (71). Short shafts (72) are welded at the middle positions of the two side surfaces of the adjustment platform (71), and each group of the short shafts (72) is fixed by a damping bearing (73) and the groove wall of the adjustment groove (70). A rotation groove (75) is provided at the rear position of the bottom of the adjustment platform (71), and tension spring grooves (74) are symmetrically provided at the bottom of the adjustment platform (71) and on both sides of the rotation groove (75).

10. The automatic mechanical welding equipment in a high-precision vacuum environment according to claim 9, characterized in that: A connecting block (85) is hingedly provided in the rotating groove (75), a hydraulic rod (84) is welded to the lower end of the connecting block (85), the hydraulic rod (84) extends upward from the inside of the hydraulic cylinder (82), a hinged bracket (83) is installed on the lower end surface of the hydraulic cylinder (82), a positioning column (81) is installed in the hinged bracket (83), the positioning column (81) is fixed at the middle position of the bottom bracket (80), the bottom bracket (80) is riveted to the bottom of the adjustment groove (70), and tension springs (86) are movably provided in the two groups of tension spring grooves (74), and hooks (87) are installed at both ends of the tension springs (86), and the two groups of hooks (87) are respectively connected to the groove wall of the tension spring groove (74) and the upper end surface of the bottom bracket (80).

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