Stainless steel silencer joint and manufacturing method thereof
Technical Field
The invention belongs to the technical field of refrigeration pipelines, and particularly relates to a stainless steel silencer joint and a manufacturing method thereof.
Background
The silencer joint belongs to an important component part of a silencer and is made of materials such as stainless steel, galvanized plates and the like. At present, in the industry, the pipe column is directly punched, workers hold the pipe column to support and fix the pipe column, insert the pipe column into a pipe column punching die to punch the hole, rotate the pipe column once every time a punching return stroke is completed, and operate step by step to achieve the purpose of punching the silencer joint in the circumferential direction. However, the processing method has the following disadvantages: the workman's intensity of labour is great, and dangerous, holds the rotation tubular column, and the angle of rotation at every turn is not accurate enough for the counter bore on the muffler connects distributes unevenly, and difficult the accuse is shifted easily, and the error is big, and finished product quality is poor.
Disclosure of Invention
The invention aims to solve the technical problems in the prior art and provides a stainless steel silencer joint and a manufacturing method thereof.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a stainless steel muffler connects, includes the body, its characterized in that: an end cover is arranged at one end of the tube body, sound passing holes are formed in the end cover, silencing holes are circumferentially distributed in the tube body, reinforcing columns are arranged on the inner wall of the tube body and located between the silencing holes, and sound absorbing cotton slivers are arranged on the reinforcing columns; the silencer has the advantages of novel structure, good silencing effect, reliable strength and strong practicability.
Furthermore, the end cover and the pipe body are welded and fixed through the annular welding sheet, the annular welding sheet flows at the connecting part of the end cover and the pipe body after being heated and melted, the contact area is large, and the connecting strength between the end cover and the pipe body is improved.
Furthermore, one end of the tube body is provided with an accommodating ring groove corresponding to the annular soldering lug, the end cover comprises a cover plate and a boss, the boss is arranged on the cover plate, the sound passing hole penetrates through the boss and the cover plate, the diameter of the boss is matched with the inner diameter of the tube opening of the tube body, the diameter of the cover plate is smaller than the outer diameter of the accommodating ring groove, a gap is reserved, a welding gun head can conveniently stretch into the gap, and welding operation is carried out; during the use earlier put into the annular soldering lug and hold the recess, then aim at the mouth of pipe of body with the boss and insert, realize the spacing one end of installing at the body of end cover, among the welding process, the annular soldering lug melts as the solder, all has the contact with body, apron, boss, has improved the area of connection between body and the end cover, has improved the installation fastness of end cover.
Furthermore, the cover plate and the boss are of an integrally formed structure, so that the connecting strength is high, the structure is reliable, the manufacture is convenient, and the continuous production can be realized.
Furthermore, be equipped with mounting groove on the reinforcement post, inhale the sound silver and pass through the bonding of epoxy binder and fix in mounting groove, inhale the sound silver installation reliable, be difficult to drop, play the sound effect of inhaling, improved the noise reduction effect.
Further, be equipped with on the inner wall of body with the corresponding location mounting groove of reinforcement post, reinforcement post welded fastening is in location mounting groove, and the location is convenient, and the installation degree of difficulty is low, and the welding is firm, is difficult to drop.
A method for manufacturing a stainless steel silencer joint is characterized by comprising the following steps:
(a) preparing a component: obtaining a pipe body and an end cover through casting molding;
(b) reinforcing the pipe body: welding and fixing the reinforcing column on the inner wall of the pipe body;
(c) punching: punching the pipe body through a punching device;
the pipe clamping device comprises a pipe body, a pipe sleeve and a pipe clamping assembly, wherein one end of the pipe body, which is provided with a containing ring groove, faces outwards, and is transversely inserted into the pipe sleeve until the pipe body is abutted against the inner end face of the pipe sleeve, and the pipe body is clamped by the pipe clamping assembly so that the pipe body is fixed in the pipe sleeve;
the controller controls the driving motor and the punching mechanism to start, in an initial state, the driving wheel is located in the first fixed slot, the driving motor drives the driving rod to rotate, the driving rod drives the transmission rod to move, the transmission rod drives the driving wheel to be separated from the first fixed slot, the sliding plate slides into the first positioning slot, the transmission disc is kept stationary, at the moment, the punching mechanism punches the pipe body for the first time, and after punching is finished, the punching mechanism stops acting;
the driving wheel moves along with the transmission rod to enter the second fixing groove, the sliding plate slides out of the first positioning groove, the driving wheel abuts against the inner wall of the second fixing groove to drive the transmission disc to rotate, the transmission disc drives the pipe sleeve to rotate through the rotating shaft, and the pipe body rotates along with the pipe sleeve; when the driving wheel moves to be separated from the second fixed slot, the sliding plate slides into the second positioning slot to limit the rotation of the driving disc, the punching mechanism is restarted to punch the pipe body for the second time, and the punching mechanism stops acting after punching is finished; according to the steps, the punching operation is carried out step by step;
(d) welding:
after the punching of the pipe body is finished, the driving motor and the punching mechanism are controlled to be closed, the annular welding sheet is placed into the containing ring groove of the pipe body, the boss of the end cover is inserted to be aligned with the pipe orifice of the pipe body, and the cover plate of the end cover presses the annular welding sheet;
heating and melting the annular welding sheet to weld and fix the end cover and the pipe body; and after the welding is finished, taking down the pipe body from the pipe sleeve to obtain a finished product of the silencer joint.
Further, when welding the reinforced column in step (b), earlier go into the reinforced column card to the location mounting groove on the body inner wall in, then weld the both ends face of reinforced column and the junction of the both ends face of location mounting groove, location simple to operate, easy operation adopts both ends welded fastening mode, can guarantee the installation fastness of reinforced column, and is laborsaving convenient, and the welding degree of difficulty is little.
Further, the punching device in the step (c) comprises a support table, a rotating shaft is rotatably connected to the support table, a pipe sleeve is arranged at one end of the rotating shaft, and pipe clamping assemblies are circumferentially distributed in the pipe sleeve; the other end of the rotating shaft is provided with a transmission disc, the transmission disc is uniformly provided with fixed slots and positioning slots, the positioning slots are positioned between adjacent fixed slots, a support table is provided with a fixed support, a transverse plate and a mounting support, the fixed support is provided with a driving motor, the driving motor is connected with a driving rod, one end of the driving rod is connected with a transmission rod, one end of the transmission rod is provided with a driving wheel, the driving wheel corresponds to the fixed slots, the other end of the transmission rod is connected with a sliding plate, the sliding plate corresponds to the positioning slots, the transverse plate is provided with a guide rail, and the sliding plate is slidably connected to the guide rail; be equipped with controller and fixed plate on the installing support, the equidistance distributes on the fixed plate has the mechanism of punching, controller electric connection mechanism and driving motor of punching, and perforating device novel structure carries out circumference to the body and punches, has reduced artifical intensity of labour, and is automatic high-efficient, and the equidistance pore-forming, the error is little, the high quality.
Further, the double-layered pipe subassembly is including the installation piece, pressure spring and arc clamp plate, the pressure spring is located between arc clamp plate and the installation piece, the installation piece is fixed on the inner wall of pipe box, insert the body in the pipe box, body extrusion arc clamp plate, the pressure spring pressurized produces the bounce-back force, apply on arc clamp plate, make arc clamp plate push down the body, a plurality of pressure actions of direction entad are on the body, with the body spacing fixed, prevent body free activity, the clamping is reliable, applicable in the body of different pipe diameters size, and the suitability is strong.
Due to the adoption of the technical scheme, the invention has the following beneficial effects:
noise in the refrigerant is diffused and attenuated through the sound absorption holes of the tube body and the sound passing holes of the end cover, and is consumed in an attenuation mode, and multiple noise reduction is achieved by matching with the sound absorption effect of the sound absorption cotton strips, so that the noise is prevented from being transmitted outwards; the reinforcing column improves the structural strength of the pipe body, is impact-resistant, is not easy to deform and damage, and has long service life.
In the punching process, the pipe body is transversely inserted into the pipe sleeve, so that the pipe sleeve is abutted against the pipe body, and the pipe body is limited and fixed by matching with the circumferential clamping action of the pipe clamping assembly, the fixing is reliable, the pipe body is not easy to move freely, the processing operation is convenient, the pipe clamping assembly is fully utilized, the subsequent assembly and fixation of the end cover and the pipe body are convenient, other clamping equipment is not needed, the operation is saved, and the equipment cost is reduced; then the driving motor drives the driving rod to rotate, the driving rod drives the driving rod to move, the driving rod drives the driving wheel to be separated from the first fixed slot, the sliding plate slides into the first positioning slot to limit the free rotation of the driving plate, the influence on the hole forming quality due to the deflection of the pipe body in the punching process is prevented, and the punching mechanism performs primary punching on the pipe body; when the driving wheel moves to enter the second fixed slot, the sliding plate slides out of the first fixed slot, the transmission disc loses the binding effect of the sliding plate, the driving wheel abuts against the inner wall of the second fixed slot and is driven by the driving wheel to rotate along with the driving wheel, the transmission disc drives the pipe sleeve to rotate through the rotating shaft, and the pipe body rotates along with the pipe sleeve; until the driving wheel is separated from the second fixed slot, the sliding plate slides into the second positioning slot, the transmission disc stops rotating, and the punching mechanism performs secondary punching on the pipe body; through the mutual cooperation of drive wheel and slide, drive the transmission disc intermittent type and rotate, the body follows intermittent type and rotates, progressively punches the operation.
The transmission disc drives the body and stops after rotating the same angle at every turn, and in the off-period, the mechanism of punching punches to the body to form circumference evenly distributed's bloop on the body, bloop equidistance in the same direction distributes, and the pore-forming high quality, effectual, the substep is orderly around, and each other does not disturb, need not shut down the operation, has reduced the control degree of difficulty, has guaranteed production efficiency.
Drawings
The invention will be further described with reference to the accompanying drawings in which:
FIG. 1 is a schematic structural view of a stainless steel muffler fitting according to the present invention;
FIG. 2 is a schematic structural view of a tube body according to the present invention;
FIG. 3 is a schematic structural view of the connection between the tube body and the annular welding sheet and the end cap according to the present invention;
FIG. 4 is a schematic structural view of a reinforcing column according to the present invention;
FIG. 5 is a schematic view of the punching apparatus according to the present invention;
FIG. 6 is a schematic view of the connection between the driving rod and the driving plate according to the present invention;
fig. 7 is a schematic view of the structure of the pipe sleeve of the present invention.
In the figure: 1-a pipe body; 2-a necking end; 3-end cover; 4-sound passing holes; 5-a sound-deadening hole; 6-reinforcing columns; 7-mounting a groove; 8-sound absorbing cotton sliver; 9-positioning the mounting groove; 10-ring-shaped soldering lug; 11-a containment ring groove; 12-a cover plate; 13-a boss; 14-a support table; 15-a rotating shaft; 16-a pipe sleeve; 17-a mounting block; 18-a pressure spring; 19-arc pressing plate; 20-a transmission disc; 21-fixed slotting; 22-positioning slotting; 23-a fixed support; 24-a transverse plate; 25-mounting a bracket; 26-a drive motor; 27-a drive rod; 28-a transmission rod; 29-a drive wheel; 30-a slide plate; 31-a guide rail; 32-a controller; 33-fixing the plate; 34-a hole punching mechanism.
Detailed Description
As shown in fig. 1 to 7, the stainless steel muffler joint of the present invention includes a pipe body 1, wherein one end of the pipe body 1 is provided with a reduced end 2, which facilitates the insertion assembly with other pipelines, improves the convenience of connection, and can obtain the reduced end 2 by reducing machining. The other end of the tube body 1 is provided with an end cover 3, the end cover 3 is provided with a sound passing hole 4, and noise is diffused and attenuated through the sound hole 4, so that the noise reduction effect is achieved. The pipe body 1 is circumferentially provided with silencing holes 5 which play a silencing role. Be equipped with on the inner wall of body 1 and add the pillar 6, add the pillar 6 and be located between the hole 5 that disappears, add the pillar 6 and improved the structural strength of body 1, shock-resistant, be difficult to warp impaired, long service life. The reinforcing column 6 is provided with the sound absorbing cotton strip 8, noise in the refrigerant is absorbed through the sound absorbing cotton strip 8, the noise reduction effect is improved, and the noise is prevented from being spread outwards. Be equipped with mounting groove 7 on the reinforcement post 6, inhale sound silver 8 and fix in mounting groove 7 through the bonding of epoxy binder, inhale sound silver 8 and install reliably, be difficult to drop, play the sound effect of inhaling, improved the noise reduction effect. Be equipped with on the inner wall of body 1 with the corresponding location mounting groove 9 of reinforcement post 6, reinforcement post 6 welded fastening is in location mounting groove 9, and the location is convenient, and the installation degree of difficulty is low, and the welding is firm, is difficult to drop.
The connecting part of the pipe body 1 and the end cover 3 is provided with an annular soldering lug 10, one end of the pipe body 1 is provided with an accommodating ring groove 11 corresponding to the annular soldering lug 10, the end cover 3 comprises a cover plate 12 and a boss 13, the boss 13 is arranged on the cover plate 12, the sound passing hole 4 penetrates through the boss 13 and the cover plate 12, the cover plate 12 and the boss 13 are of an integrally formed structure, the connecting strength is high, the structure is reliable, the manufacture is convenient, and the continuous production can be realized. The diameter of the boss 13 is matched with the inner diameter of the pipe orifice of the pipe body 1, the diameter of the cover plate 12 is smaller than the outer diameter of the containing ring groove 11, a gap is reserved, and a welding gun head can conveniently extend into the gap to carry out welding operation; when in use, the annular soldering lug 10 is firstly placed in the accommodating groove, and then the boss 13 is inserted aiming at the pipe orifice of the pipe body 1, so that the end cover 3 is limited and arranged at one end of the pipe body 1; in the welding process, the annular soldering lug 10 is used as a solder, flows after being heated and melted, and is in contact with the pipe body 1, the cover plate 12 and the boss 13, so that the contact area is large, the connection strength between the pipe body 1 and the end cover 3 is improved, and the installation firmness of the end cover 3 is improved.
A method for manufacturing a stainless steel silencer joint comprises the following steps:
(a) preparing a component: obtaining a pipe body 1 and an end cover 3 through casting molding;
(b) reinforcing the pipe body 1: the reinforcing column 6 is firstly clamped into the positioning mounting groove 9 on the inner wall of the pipe body 1, so that the positioning is convenient, the operation is simple, and the mounting difficulty is reduced; then weld the junction of the both ends face of reinforcement post 6 and the both ends face of location mounting groove 9 for reinforcement post 6 and body 1 welded fastening adopt both ends welded fastening mode, can guarantee the installation fastness of reinforcement post 6, and quick fixed is laborsaving convenient, and the welding degree of difficulty is little.
(c) Punching: punching the pipe body 1 by a punching device; perforating device includes brace table 14, it is connected with pivot 15 to rotate on the brace table 14, the one end of pivot 15 is equipped with pipe box 16, it has the double-layered pipe subassembly to encircle to distribute in the pipe box 16, the double-layered pipe subassembly is including installing piece 17, pressure spring 18 and arc clamp plate 19, pressure spring 18 is located between arc clamp plate 19 and the installation piece 17, installation piece 17 is fixed on the inner wall of pipe box 16, insert body 1 in pipe box 16, body 1 extrudes arc clamp plate 19, pressure spring 18 pressurized produces the bounce, apply on arc clamp plate 19, make arc clamp plate 19 push down body 1, a plurality of centripetal direction's pressure effect is on body 1, with body 1 spacing fixed, prevent body 1 free activity, the clamping is reliable, it is applicable in body 1 of different pipe diameters size, the suitability is strong.
The other end of the rotating shaft 15 is provided with a transmission disc 20, the transmission disc 20 is uniformly distributed with fixed slots 21 and positioning slots 22, the positioning slots 22 are positioned between adjacent fixed slots 21, the support table 14 is provided with a fixed bracket 23, a transverse plate 24 and a mounting bracket 25, the fixed bracket 23 is provided with a driving motor 26, the driving motor 26 is connected with a driving rod 27, one end of the driving rod 27 is connected with a transmission rod 28, one end of the transmission rod 28 is provided with a driving wheel 29, the driving wheel 29 corresponds to the fixed slot 21, the other end of the transmission rod 28 is connected with a sliding plate 30, the sliding plate 30 corresponds to the positioning slots 22, the transverse plate 24 is provided with a guide rail 31, and the sliding plate 30 is slidably connected to the guide rail 31; be equipped with controller 32 and fixed plate 33 on the installing support 25, the equidistant distribution has the mechanism of punching 34 on the fixed plate 33, and controller 32 electric connection mechanism of punching 34 and driving motor 26, the perforating device novel structure carries out circumference to body 1 and punches, has reduced artifical intensity of labour, and the security is high, and is automatic high-efficient, and the equidistance pore-forming, the error is little, the high quality.
The pipe clamping device has the advantages that the arc-shaped pressing plates 19 are extruded, clamping space is reserved, one end, provided with the accommodating ring groove 11, of the pipe body 1 faces outwards, the pipe body 1 is transversely inserted into the pipe sleeve 16 until the pipe body 1 is in contact with the inner end face of the pipe sleeve 16, sufficient contact area is guaranteed, the pipe sleeve 16 abuts against the pipe body 1, and the pipe body 1 is limited and fixed in a matched mode through the circumferential clamping effect of the pipe clamping assembly, so that the pipe body 1 is reliable to fix, the pipe body 1 is not easy to move freely, and machining operation is facilitated; make full use of and press from both sides the pipe subassembly, be convenient for follow-up end cover 3 and the equipment of body 1, fixed, and need not to have saved the operation with the help of other centre gripping equipment, reduced equipment cost again.
The controller 32 controls the driving motor 26 and the punching mechanism 34 to be started, in an initial state, the driving wheel 29 is located in the first fixed slot 21, the driving motor 26 drives the driving rod 27 to rotate, the driving rod 27 drives the transmission rod 28 to move, the transmission rod 28 drives the driving wheel 29 to be separated from the first fixed slot 21, the sliding plate 30 slides into the first fixed slot 22, the driving plate 20 keeps still, the punching mechanism 34 punches the pipe body 1 for the first time, after punching is finished, the punching mechanism 34 stops moving, the driving wheel 29 is separated from the fixed slot 21, the sliding plate 30 enters the fixed slot 22 to limit free rotation of the driving plate 20, the pipe body 1 is prevented from deflecting to influence the quality of formed holes in the punching process, the driving wheel 29 is matched with the sliding plate 30, and the driving plate 20 is driven to rotate intermittently.
The driving wheel 29 moves along with the transmission rod 28 to enter the second fixing groove 21, the sliding plate 30 slides out of the first positioning groove 22, the driving disc 20 loses the binding effect of the sliding plate 30, the driving wheel 29 abuts against the inner wall of the second fixing groove 21 and is driven by the driving wheel 29, the driving disc 20 rotates along with the driving wheel 29, the driving disc 20 drives the pipe sleeve 16 to rotate through the rotating shaft 15, and the pipe body 1 rotates along with the pipe sleeve 16; when the driving wheel 29 moves to be separated from the second fixed slot 21, the sliding plate 30 slides into the second positioning slot 22 to limit the rotation of the driving disc 20, the punching mechanism 34 is restarted to punch the pipe body 1 for the second time, and the punching mechanism 34 stops acting after punching is finished; and according to the steps, gradually performing punching operation. The transmission disc 20 drives the pipe body 1 to rotate the same angle each time and then stop, and in the idle period, the punching mechanism 34 punches the pipe body 1, so that the silencing holes are uniformly distributed in the circumferential direction on the pipe body 1, the silencing holes in the same direction are distributed at equal intervals, the pore-forming quality is high, the pore-forming effect is good, the front and the back are orderly in step by step and do not interfere with each other, the shutdown operation is not needed, the control difficulty is reduced, and the production efficiency is ensured.
(d) Welding:
after the punching of the pipe body 1 is finished, the driving motor 26 and the punching mechanism 34 are controlled to be closed, the annular welding sheets 10 are put into the containing ring groove 11 of the pipe body 1, the boss 13 of the end cover 3 is inserted into the pipe opening of the pipe body 1 in an aligning mode, the cover plate 12 of the end cover 3 presses the annular welding sheets 10, the end cover 3 is convenient to locate and simple to operate, the cover plate 12 presses the annular welding sheets 10, and free movement is not easy to achieve, so that the welding operation is convenient.
Heating and melting the annular welding sheet 10 to weld and fix the end cover 3 and the pipe body 1; after the welding is finished, the pipe body 1 is taken down from the pipe sleeve 16, and the opening end of the pipe body 1 is reduced by a reducing machine to obtain a reducing end 2; and then cleaning with hot water at 50-60 ℃ to remove stains and debris to obtain a finished product of the silencer joint.
The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions or modifications made based on the present invention to solve the same technical problems and achieve the same technical effects are within the scope of the present invention.