Rocket head fusion welding alloy device for injection molding machine
Technical Field
The invention relates to the technical field of rocket head fusion welding of injection molding machines, in particular to a rocket head fusion welding alloy device for an injection molding machine.
Background
The rocket head fusion welding alloy device for the injection molding machine is mainly used for fusion welding alloy treatment of the rocket head of the injection molding machine. Fire arrows are key components in injection molding machines that are subjected to high temperatures, pressures, and wear during injection molding. Through fusion welding alloy device, can melt one deck high performance alloy material on rocket head surface, improve its hardness, wearability, performance such as corrosion resistance to prolong the life of fire arrow, reduction in production cost. The rocket head part of the high glass fiber halogen-free plastic injection molding machine bears the working conditions of high abrasion, high corrosion and high impact at the same time, and the rocket head has short service life. As a fire arrow part material, the material needs to meet the severe conditions of high strength, high impact toughness, high corrosion resistance, high wear resistance and the like. The existing rocket heads of the injection molding machine are usually welded with alloys on the surfaces thereof.
For example, in the prior art, when the fire arrow is processed, the abrasion-resistant and corrosion-resistant alloy blocks are welded on the outer side of the conical part of the rocket head body, and the abrasion-resistant and corrosion-resistant alloy blocks are made of ternary boride materials or hard alloy, so that the rocket head is high in hardness, abrasion-resistant and corrosion-resistant, and suitable for processing special plastics.
However, the traditional plastic die steel, stainless steel, nickel-based alloy and the like have certain corrosion resistance, serious abrasion, high-speed steel, powder steel and the like have higher abrasion resistance and serious corrosion, the prior art is difficult to simultaneously meet the requirements of high corrosion resistance and high abrasion resistance, the problem that an alloy block falls into a mounting hole in the feeding process can occur, workers are required to use tools to remove the alloy block, and the operation is very inconvenient.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the rocket head fusion welding alloy device for the injection molding machine, which is characterized in that an air chuck is matched with a polysulfone sliding block to fix an alloy block and a rocket head and tail feather part, two induction coils are used for heating the alloy block to realize the welding of the alloy block and the rocket head and tail feather part, the welding efficiency is high, and a pressing plate is used for limiting the alloy block, so that the stability of a plurality of alloy blocks is improved, the problem that alloy falls into a mounting hole can be avoided, and the problem in the background technology is solved.
The invention provides a rocket head fusion welding alloy device for an injection molding machine, which comprises an induction fusion welding workbench, wherein a mounting hole is formed in the center of the top of the induction fusion welding workbench, an air chuck for fixing fire arrows is fixedly arranged in the center of the bottom of the induction fusion welding workbench, the air chuck is a fixture device taking compressed air as a power source, the air chuck is based on the technical principle that when the compressed air enters a cylinder of the chuck through a pneumatic control system, a piston in the cylinder pushes a transmission mechanism to enable a claw to move towards the center to clamp the fire arrows, when the fire arrows are required to be released, a control valve switches the flow direction of the compressed air to enable the piston in the cylinder to move reversely to drive the transmission mechanism to enable the claw to open outwards, the air chuck is communicated with the mounting hole, and a support frame is fixedly arranged at the bottom of the induction fusion welding workbench and sleeved outside the air chuck;
The induction welding workbench comprises an induction welding workbench, wherein a plurality of induction heating mechanisms are arranged at the top of the induction welding workbench, each induction heating mechanism comprises a synchronous cylinder I which is detachably fixed at the top of the induction welding workbench, one end of a piston rod of each synchronous cylinder I is fixedly provided with a polysulfone sliding block, the bottom of each polysulfone sliding block is provided with an alumina ceramic plate, two symmetrically distributed induction coils are fixedly arranged above each alumina ceramic plate, and particularly, the induction coils are devices working by utilizing the electromagnetic induction principle, when alternating current is introduced into the induction coils, alternating magnetic fields are generated around the induction coils, and alloy blocks placed in the magnetic fields can generate induction currents, namely vortex flows in the alloy blocks due to electromagnetic induction, and the vortex can heat the alloy blocks due to certain resistance of the alloy blocks, so that the heating purpose is realized;
the top of each aluminum oxide ceramic plate is provided with a plurality of alloy blocks, and the top of the induction fusion welding workbench is fixedly provided with a plurality of limiting mechanisms for limiting the plurality of alloy blocks.
In a preferred embodiment, a plurality of mounting grooves are formed in the top of the induction fusion welding workbench, and a plurality of aluminum oxide ceramic plates are detachably fixed inside the mounting grooves respectively, so that workers can conveniently detach the aluminum oxide ceramic plates for replacement.
In a preferred embodiment, each induction coil is fixedly provided with a limiting block on one side close to the synchronous cylinder, the limiting blocks are detachably fixed with the aluminum oxide ceramic plate through bolts, the distance between the two induction coils is convenient to adjust, alloy blocks with different widths are further suitable, and the flexibility is high.
In a preferred embodiment, the stop gear includes the roof, every roof bottom all is fixed and is equipped with clamp plate and synchronous cylinder two, clamp plate bottom and a plurality of alloy piece top contact, synchronous cylinder two bottom is fixed with induction fusion welding workstation top, with the help of synchronous cylinder two drive roof lift to can automatically regulated roof and clamp plate's height, do not need manual regulation, it is very convenient to use.
In a preferred embodiment, the riser is all fixed to roof bottom both sides, has all run through the threaded rod on two risers, and threaded rod and riser threaded connection, the threaded rod is close to alloy piece one end and rotates and be equipped with the limiting plate, and two limiting plates all establish between two induction coils, use two limiting plates to play spacing effect in a plurality of alloy piece both sides to this stability that can improve the alloy piece greatly removes avoids the alloy piece skew, influences the welding precision at alloy piece and rocket head and tail feather position.
In a preferred embodiment, two locating rods penetrate through the top of each top plate, the two locating rods are distributed on two sides of the synchronous cylinder II and the pressing plate, the bottom ends of the locating rods are fixed to the top of the induction fusion welding workbench, the two locating rods slide on two sides of the top plate, and stability of the top plate during lifting can be improved by means of the locating rods.
In a preferred embodiment, a plurality of fixed orifices have been seted up to support frame bottom, and a plurality of fixed orifices are annular array distribution in supporting the frame for fixed supporting the frame, improve the steadiness of response fusion welding workstation greatly.
The invention has the technical effects and advantages that:
1. according to the invention, the fire arrow is fixed through the pneumatic chuck, the polysulfone slide block is driven by the synchronous cylinder to push the alloy blocks to sequentially contact with the tail feather part of the fire arrow, and then the alloy blocks are heated by the two induction coils, so that the welding of the alloy blocks and the rocket head tail feather part is realized, the embedding of the rocket head alloy blocks is realized, and the welding efficiency is high.
2. The plurality of alloy blocks which are not contacted with the rocket head are limited through the pressing plate, so that the stability of the plurality of alloy blocks is improved, and the problem that the alloy falls into the mounting hole can be avoided;
3. The height of the pressing plate is automatically adjusted through the synchronous cylinder II, the two limiting plates play a limiting role on two sides of the alloy block, the positioning accuracy of the alloy block can be ensured by matching with the pressing plate, fusion welding of the offset influence of the alloy block and a fire arrow is avoided, and meanwhile, the positions of the two limiting plates are adjusted, so that the alloy block with different widths can be suitable.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of the overall structure of the present invention;
FIG. 3 is a top view of the overall structure of the present invention;
FIG. 4 is a top view of an induction fusion welding table of the present invention;
FIG. 5 is a schematic view of the induction heating mechanism, alloy block and spacing mechanism of the present invention;
FIG. 6 is a schematic diagram of an induction heating mechanism according to the present invention;
FIG. 7 is a schematic view of a limiting mechanism according to the present invention;
fig. 8 is a bottom view of fig. 7.
The device comprises a working table for induction fusion welding, a mounting hole, a pneumatic chuck, a supporting rack, an induction heating mechanism, an alloy block, a limiting mechanism, a mounting groove, a limiting block, a bolt, a positioning rod, a fixing hole and a fixing mechanism, wherein the reference numeral is 1;
501. synchronous cylinder I, 502, polysulfone slide block, 503, alumina ceramic plate, 504, induction coil;
701. Top plate 702, pressing plate 703, synchronous cylinder two 704, vertical plate 705, threaded rod 706 and limiting plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to the accompanying drawings 1-8 of the specification, the invention provides a rocket head fusion welding alloy device for an injection molding machine, which comprises an induction fusion welding workbench 1, wherein a mounting hole 2 is formed in the center of the top of the induction fusion welding workbench 1, an air chuck 3 for fixing a fire arrow is fixedly arranged in the center of the bottom of the induction fusion welding workbench 1, the air chuck 3 is a fixture device taking compressed air as a power source, the air chuck 3 is specifically based on the principle that when the compressed air enters a cylinder of the chuck through a pneumatic control system, a piston in the cylinder pushes a transmission mechanism to enable a claw to move towards the center to clamp the fire arrow, when the fire arrow is required to be released, a control valve switches the flow direction of the compressed air to enable the piston in the cylinder to move reversely to drive the transmission mechanism to enable the claw to open outwards, the air chuck 3 is communicated with the mounting hole 2, and a support frame 4 is fixedly arranged at the bottom of the induction fusion welding workbench 1, and the support frame 4 is sleeved outside the air chuck 3;
The top of the induction fusion welding workbench 1 is provided with a plurality of induction heating mechanisms 5, each induction heating mechanism 5 comprises a synchronous cylinder I501 which is detachably fixed at the top of the induction fusion welding workbench 1, one end of a piston rod of each synchronous cylinder I501 is fixedly provided with a polysulfone sliding block 502, and the polysulfone sliding block 502 is a sliding block made of polysulfone materials, has the advantages of high temperature resistance and high mechanical strength, so that the polysulfone sliding block 502 has long service life and is suitable for fusion welding of fire arrows of an injection molding machine and alloy blocks 6;
The bottom of the polysulfone sliding block 502 is provided with an alumina ceramic plate 503, the top of the induction fusion welding workbench 1 is provided with a plurality of mounting grooves 8, the plurality of alumina ceramic plates 503 are respectively and detachably fixed in the plurality of mounting grooves 8, the alumina ceramic plates 503 are convenient for workers to replace, two symmetrically distributed induction coils 504 are fixedly arranged above each alumina ceramic plate 503, the induction coils 504 are particularly devices working by utilizing the electromagnetic induction principle, when alternating current is introduced into the induction coils 504, alternating magnetic fields are generated around the induction coils, alloy blocks placed in the magnetic fields can generate induction current due to electromagnetic induction, namely vortex flows in the alloy blocks, and the vortex can heat the alloy blocks due to certain resistance of the alloy blocks, so that the heating purpose is realized;
Each alumina ceramic plate 503 top all is equipped with a plurality of alloy pieces 6, and a plurality of alloy pieces 6 are in proper order with a plurality of rocket head and tail feather positions welding under the drive of synchronous cylinder one 501, and machining efficiency is high, a plurality of fixed orificess 12 have been seted up to support frame 4 bottom, and a plurality of fixed orificess 12 are annular array distribution on support frame 4 for installation response fusion welding workstation 1.
When the rocket head is used, firstly, the rocket head passes through the mounting hole 2 and is inserted into the air chuck 3, the bottom of the rocket head tail feather part is flush with the top of the induction fusion welding workbench 1, then, a plurality of alloy blocks 6 are horizontally stacked on the alumina ceramic plate 503, then, the synchronous cylinder I501 can be used for driving the polysulfone slide block 502 to move so as to push the plurality of alloy blocks 6 to move towards the rocket head, the alloy blocks 6 move upwards from the alumina ceramic plate 503 to the induction fusion welding workbench 1 until one alloy block 6 farthest from the polysulfone slide block 502 is contacted with the tail feather part of a fire arrow, each two induction coils 504 are arranged at two sides of the alloy block 6 contacted with the rocket head tail feather part, and the alloy blocks 6 are heated by using the two induction coils 504, as shown in figures 1, 5 and 6, so that the welding of the alloy blocks 6 and the rocket head tail feather part is realized, and the inlaying of the head alloy blocks 6 is realized;
after welding is finished, the fire arrow is taken out, a new fire arrow is placed, and the synchronous cylinder I501 drives the plurality of alloy blocks 6 to continue moving, so that the alloy blocks 6 are welded with the new rocket head and tail feather parts, and the fusion welding efficiency of the fire arrow of the injection molding machine is greatly improved.
Referring to fig. 1-3, 5 and 7-8 of the specification, the top of the induction fusion welding workbench 1 is fixedly provided with a plurality of limiting mechanisms 7 for limiting a plurality of alloy blocks 6, one side of each induction coil 504, which is close to a synchronous cylinder one 501, is fixedly provided with a limiting block 9, the limiting block 9 is detachably fixed with an alumina ceramic plate 503 through bolts 10, so that the limiting block and the induction coils 504 are convenient to detach, and the induction coils 504 are overhauled and replaced;
the limiting mechanism 7 comprises top plates 701, the bottom of each top plate 701 is fixedly provided with a pressing plate 702 and a second synchronizing cylinder 703, the bottom of each pressing plate 702 is in contact with the tops of the plurality of alloy blocks 6, the bottom end of each second synchronizing cylinder 703 is fixed with the top of the induction fusion welding workbench 1, and the top plates 1 are driven to lift by means of the second synchronizing cylinders 703, so that the heights of the top plates 701 and the pressing plates 702 can be automatically adjusted, manual adjustment is not needed, and the use is very convenient;
the first synchronous cylinder 501 and the second synchronous cylinder 703 are cylindrical metal parts for guiding the piston to reciprocate linearly in the cylinder, and the specific principle is that when compressed air is input from the rodless cavity, the rod cavity is exhausted, the force formed by the pressure difference between the two cavities of the cylinder acting on the piston overcomes the resistance load to push the piston to move, so that the piston rod extends;
Moreover, the two sides of the bottom of the top plate 701 are fixedly provided with vertical plates 704, threaded rods 705 penetrate through the two vertical plates 704, the threaded rods 705 are in threaded connection with the vertical plates 704, one end of each threaded rod 705, which is close to each alloy block 6, is rotationally provided with a limiting plate 706, the two limiting plates 706 are arranged between the two induction coils 504, and the two limiting plates 706 are used for limiting the two sides of each alloy block 6, so that the moving stability of the alloy block 6 can be greatly improved, the deviation of the alloy block 6 is avoided, and the welding precision of the alloy block 6 and the front-tail feather part of a rocket is influenced;
Moreover, two positioning rods 11 penetrate through the top of each top plate 701, the two positioning rods 11 are distributed on two sides of the synchronous cylinder II 703 and the pressing plate 702, the bottom ends of the positioning rods 11 are fixed on the top of the induction fusion welding workbench 1, the two positioning rods 11 slide on two sides of the top plate 701, and stability of the top plate 701 during lifting can be improved by means of the positioning rods 11.
Through setting up stop gear in every alumina ceramic plate 503 outside, specifically, whenever an alloy piece 6 contacts with the tail feather position of fire arrow, synchronous cylinder two 703 drive roof 701 moves down, make clamp plate 702 press on a plurality of remaining alloy pieces 6, thereby improve the stability of a plurality of alloy pieces 6, avoid appearing the alloy and drop the problem in the mounting hole 2, after the fire arrow is placed again, use synchronous cylinder two 703 drive clamp plate 702 to move up earlier, then use synchronous cylinder one 501 to promote alloy piece 6 pay-off again, two limiting plates 706 play the limiting effect in alloy piece 6 both sides, thereby ensure the location accuracy of alloy piece 6, and the staff can twist threaded rod 705 and adjust the position of limiting plate 706, and then can adjust the interval of two limiting plates 706, can be suitable for the alloy piece 6 of different width.
Finally, the foregoing description of the preferred embodiment of the invention is provided for the purpose of illustration only, and is not intended to limit the invention to the particular form disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.