CN115771181B - Automobile engine falls pipe perforating device that makes an uproar - Google Patents
Automobile engine falls pipe perforating device that makes an uproar Download PDFInfo
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- CN115771181B CN115771181B CN202211500567.6A CN202211500567A CN115771181B CN 115771181 B CN115771181 B CN 115771181B CN 202211500567 A CN202211500567 A CN 202211500567A CN 115771181 B CN115771181 B CN 115771181B
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- punching
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The invention provides a noise reduction pipe perforating device of an automobile engine, which comprises a base, a noise reduction pipe mounting seat, a perforating mechanism and a synchronous driving mechanism, wherein the noise reduction pipe mounting seat is fixed on a supporting platform, and a material placing cavity is formed on the noise reduction pipe mounting seat; the punching mechanisms are circumferentially and uniformly distributed around the axis of the material placing cavity and comprise sliding seats horizontally arranged on the support platform and electric heating punchers, and the side wall of the material placing cavity is provided with a hole body for allowing the punching ends of the electric heating punchers to pass through so as to realize punching; and the synchronous driving mechanism is used for driving the sliding blocks on the punching mechanisms to synchronously slide inwards or outwards. The automobile engine noise reduction pipe punching device is compact in structure, high in clamping efficiency and good in effect, can realize multi-hole synchronous punching, greatly improves punching efficiency and punching effect, is suitable for batch processing, reduces production cost and improves processing efficiency.
Description
Technical Field
The invention relates to a noise reduction pipe, in particular to a punching device for a noise reduction pipe of an automobile engine.
Background
At present, the air inlet end of a common automobile filter is mostly made of plastic hoses, and the product has no any change to the noise of an automobile engine. Therefore, my department developed an engine and falls pipe of making an uproar with function of making an uproar, it was woven by cotton thread or nylon and forms, embedded wire support forms cylinder engine and falls pipe 9 of making an uproar, see fig. 1, set up mounting hole 91 in the position of its tip, this mounting hole 91 is four and circumference equipartition, receive the material influence of falling the pipe of making an uproar, can't carry out drilling operation through the drill bit, can only punch one by one with the electric iron through artificial mode, and punching efficiency and precision are low, and the cost of labor is high.
Disclosure of Invention
【1】 Technical problem to be solved
The invention aims to solve the technical problem of providing the automobile engine noise reduction pipe punching device which can realize quick punching, and has high punching efficiency and good precision.
【2】 Technical proposal for solving the problems
The invention provides a perforating device for a noise reduction pipe of an automobile engine, which comprises:
a base 1 as a mounting and supporting carrier, wherein the upper end of the base 1 forms a supporting platform;
the noise reduction pipe mounting seat 6 is fixed on the supporting platform and used for placing a noise reduction pipe 9, and a material placing cavity with an open upper end and capable of accommodating the axial insertion of the noise reduction pipe is formed on the noise reduction pipe mounting seat 6;
the punching mechanism is circumferentially and uniformly distributed around the axis of the material placing cavity and is used for punching the noise reduction pipe, the punching mechanism comprises a sliding seat horizontally arranged on the support platform and an electric heating puncher fixed on the sliding seat, the axis of the punching end of the electric heating puncher is vertical and intersects with the axis of the material placing cavity, and the side wall of the material placing cavity is provided with a hole body for allowing the punching end of the electric heating puncher to pass through so as to realize punching;
and the synchronous driving mechanism is used for driving the sliding blocks on the punching mechanisms to synchronously slide inwards or outwards.
Further, the electric heating puncher is an electric soldering iron.
Further, the synchronous driving mechanism comprises a driving disc 51 and a driving motor 8, the driving disc is rotatably arranged on the base, the rotation axis of the driving disc is coaxial with the material placing cavity, a driven wheel coaxial with the driving disc is arranged on the driving disc, and the driven wheel is connected with a driving wheel on an output shaft of the driving motor 8 through a belt 81; the edge circumference equipartition of driving disk has with the same connecting rod 52 of punching mechanism quantity, the head of connecting rod articulates on the driving disk, the afterbody of connecting rod with the slide articulates.
Further, a supporting frame 41 is arranged on the supporting platform, the noise reduction pipe mounting seat 6 is fixed on the supporting frame 41, and the driving disc is mounted at the lower end of the supporting frame 41.
Further, the sliding seat comprises a sliding seat body 22, a mounting hole for mounting the electric heating puncher is formed in the top of the sliding seat body, the axis of the mounting hole is perpendicular to and intersects with the axis of the material placing hole, and a pressing block 23 for pressing and fixing the electric heating puncher is arranged at the top of the sliding seat body 22.
Further, a synchronous clamping mechanism connected with the synchronous driving mechanism is arranged in the material placing cavity.
Further, the synchronous clamping mechanism comprises a speed reducing assembly and a clamping assembly, wherein the input end of the speed reducing assembly is coaxial with the driving disc and is rigidly connected with the driving disc, and the output end of the speed reducing assembly is coaxial with the material placing cavity; the clamping assembly comprises a rotary table 64 rigidly connected to the output end of the speed reducing assembly, a secondary gear ring 65 fixed to the upper end of the rotary table 64, and at least three inner clamping rollers 71 circumferentially and uniformly distributed in the material placing cavity, wherein the upper end of the secondary gear ring 65 extends upwards into the material placing cavity, first gear teeth are arranged on the inner wall of the secondary gear ring, the inner clamping rollers 72 are rotatably installed in the material placing cavity, the rotation axes of the inner clamping rollers are parallel to the axis of the material placing cavity, clamping portions 721 eccentric to the rotation axes of the inner clamping rollers are arranged on the inner clamping rollers, a clamping area 70 is formed between the clamping portions 711 and the inner wall of the material placing cavity, first clamping gears 722 meshed with the first gear teeth are arranged at the lower end of the inner clamping rollers 72, and when the sliding block is located at the inner limit position, the protruding ends of the clamping portions face the clamping area and are in a clamping state.
Further, an inner cylinder 73 is coaxially arranged in the material placing cavity, a clamping area for inserting a noise reduction pipe is formed between the outer wall of the inner cylinder 73 and the inner wall of the material placing cavity, and the top of the inner cylinder is an inclined plane and forms a first inclined guide plane; the outer wall circumference equipartition of interior barrel has first bar mounting groove, the length direction of first bar mounting groove is on a parallel with put the axis in material chamber, interior pinch roller rotationally installs in the first bar mounting groove.
Further, second strip-shaped grooves with the same number as the inner clamping rollers are formed in the inner wall of the material placing cavity, the length direction of each second strip-shaped groove is parallel to the length direction of the material placing cavity, an outer clamping roller 71 with the same structure as the inner clamping rollers is rotatably arranged in each second strip-shaped groove, and a second clamping gear at the lower end of each outer clamping roller is meshed with second gear teeth arranged on the outer wall of the auxiliary gear ring; when the sliding block is positioned at the inner limit position, the connecting line of the protruding ends of the clamping parts on the inner clamping roller and the outer clamping roller is intersected with the axis of the material placing cavity.
Further, the clamping portion is cylindrical, the mounting holes are formed in the two ends of the clamping portion, the mounting holes are eccentric to the axis of the clamping portion, at least three strip-shaped grooves are uniformly distributed in the mounting holes in the circumferential direction, strip-shaped protrusions 7111 corresponding to the strip-shaped grooves are arranged on the outer wall of the inner clamping roller, gaps are formed between the two sides of the strip-shaped protrusions and the two inner walls of the strip-shaped grooves, elastic components are arranged in the gaps, and the elastic forces of the elastic components on the two sides of the strip-shaped protrusions are identical and enable the strip-shaped protrusions to be located in the center of the strip-shaped grooves.
Further, the relative rotation angle of the clamping part and the inner clamping roller is more than or equal to +/-3 degrees and less than or equal to +/-5 degrees.
Further, a rubber layer is arranged on the outer wall of the clamping part.
Further, the elastic component comprises two arc-shaped elastic pieces, the arc-shaped elastic pieces are outwards protruded and form arc-shaped elastic parts, and two ends of the arc-shaped elastic pieces are fixedly connected.
Further, the rotation angle of the inner clamping roller and the outer clamping roller is smaller than or equal to 90 degrees.
Further, the speed reducing assembly includes a mounting housing 61, a main gear ring 62, a planet carrier 63, a first gear 633 and a second gear 632, wherein the main gear ring 62, the planet carrier 63, the first gear 633 and the second gear 632 are located in the mounting housing 61, the planet carrier 63 is rotatably mounted in the mounting housing, the rotation axis of the planet carrier is coaxial with the material placing cavity, the lower end of the planet carrier is rigidly connected with the driving disc, at least three main shafts 631 are circumferentially and uniformly distributed at the upper end of the planet carrier, the second gear 632 is rotatably mounted on the main shafts 631, the first gear is fixed at the center of the planet carrier and is meshed with the second gear, the main gear ring is fixed in the mounting housing and is meshed with the second gear, and the turntable is fixed at the top of the main shafts.
【3】 Advantageous effects
According to the perforating device for the noise reduction pipe of the automobile engine, the material placing cavity is arranged, so that the noise reduction pipe can be inserted and positioned, and the drilling precision is improved; the multi-slider type structure design has the advantages of compact structure, low cost, simple driving and large stroke; the driving disk is arranged, so that synchronous action of multiple sliding blocks is realized, the punching efficiency is greatly improved, and the action synchronism is good and the operation is stable; the electric iron is used as a punching device, so that the production and maintenance cost is low, and the punching effect is good; the protection plate is arranged, so that protection can be realized, the use safety is improved, and scalding caused by false touch is avoided; the clamping mechanism is arranged, so that the noise reduction pipe can be rapidly clamped, the clamping precision and stability are improved, the inner diameter of the material placing cavity can be properly increased, the noise reduction pipe can be rapidly inserted, and the efficiency is improved; the linkage speed reducing mechanism is arranged, so that linkage after speed reduction can be realized, single-input multi-output is realized, the linkage performance is good, the running synchronism is high, and the stability is good; the multiple inner clamping rollers and the multiple outer clamping rollers are arranged, so that the clamping effect is good, and the punching precision and efficiency are improved; the eccentric clamping part is structurally arranged, so that the structure is compact, the clamping force and effect are good, and the production cost is low; the clamping part can realize elastic relative rotation, realize compensation of production, processing and assembly errors, and simultaneously can form elastic compression to avoid extrusion deformation; the rubber layer is arranged on the outer wall of the compression part, so that soft contact is realized, friction force and compression effect are improved, certain deformation can be generated, contact area is increased, rigid contact is avoided, and the noise reduction pipe is protected; the arc-shaped elastic component structure has good elastic force and small installation space, and realizes the elastic connection of the clamping part and the roller body; the automobile engine noise reduction pipe punching device is compact in structure, high in clamping efficiency and good in effect, can realize multi-hole synchronous punching, greatly improves punching efficiency and punching effect, is suitable for batch processing, reduces production cost and improves processing efficiency.
Drawings
FIG. 1 is a schematic view of a noise reduction tube of an automobile engine;
FIG. 2 is a schematic structural view of a noise reduction pipe perforating device for an automobile engine;
FIG. 3 is a schematic view of another angle structure of the noise reduction pipe perforating device of the automobile engine;
FIG. 4 is a front view of the noise reduction tube perforating device of the automobile engine of the present invention;
FIG. 5 is a schematic structural view of a synchronous driving mechanism of a noise reduction pipe perforating device of an automobile engine;
FIG. 6 is a schematic structural view of a synchronous clamping mechanism of the noise reduction pipe perforating device of the automobile engine;
FIG. 7 is a schematic diagram of a deceleration assembly of the noise reduction tube perforating device of the automotive engine of the present invention;
FIG. 8 is a schematic view of the structure of the nip roller of the noise reduction tube punching device of the automobile engine of the present invention;
FIG. 9 is a schematic diagram of a synchronous clamping mechanism of the noise reduction pipe perforating device of the automobile engine in a clamping state;
FIG. 10 is a cross-sectional view of a clamping roller of the noise reduction tube punching device of the automobile engine of the present invention;
FIG. 11 is a schematic view of the elastic member of the noise reducing tube perforating device of the automobile engine of the present invention;
FIG. 12 is a schematic view showing the state of the nip rolls when the noise reduction pipe perforating device of the automobile engine is released;
fig. 13 is a schematic view showing a state of a nip roller when the noise reduction pipe perforating device for an automobile engine is clamped.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Referring to fig. 2-13, the present invention provides a perforating device for a noise reduction pipe of an automobile engine, which is used for perforating the noise reduction pipe of an air inlet end of the automobile engine, wherein the noise reduction pipe is formed by braiding cotton threads or nylon or fibers, and a spiral steel wire ring is arranged in the noise reduction pipe and is used as a support.
The punching device comprises a base 1, a noise reduction pipe mounting seat 6 arranged on the base, a punching mechanism and a synchronous driving mechanism.
The base 1 serves as a mounting and supporting carrier for mounting other components, the upper end (surface) of the base 1 forming a supporting platform.
The noise reduction pipe mounting seat 6 is fixed on the supporting platform and is used for placing a noise reduction pipe 9, a material placing cavity is formed on the noise reduction pipe mounting seat 6, the cross section of the material placing cavity is round, the axis of the material placing cavity is perpendicular to the horizontal plane, and the upper end of the material placing cavity is open (opened) and is used for accommodating the axial insertion of the noise reduction pipe; in this embodiment, be equipped with support frame 41 on the supporting platform, fall and manage mount pad 6 and fix on the support frame 41, specifically, this support frame 41 is parallel to supporting platform's strip shaped plate, the lower extreme of its both sides is equipped with the cushion for form the difference in height with supporting platform between, be fixed with a cylinder at this supporting platform's upper end center to form and fall and manage mount pad 6, this fall and manage mount pad 6 and make by stainless steel, it passes through the bolt fastening on the support frame, has four pore bodies at the lateral wall circumference equipartition of falling and managing mount pad 6 for hold the punch machine on the punch device to pass, realize punching.
The four punching mechanisms are circumferentially and uniformly distributed around the axis of the material placing cavity and are used for punching noise reduction pipes, each punching mechanism comprises a sliding seat horizontally arranged on a support platform and an electric heating puncher 24 fixed on the sliding seat, a base plate 21 is specifically arranged on the support platform, a sliding rail 211 is fixed on the base plate 21, the axis of each sliding rail is vertical and intersected with the axis of the material placing cavity, one or more sliding blocks are slidably arranged on each sliding rail, the sliding seat is fixed on each sliding block, sliding matching is further achieved, the sliding seat comprises a sliding seat body 22, a mounting hole is formed in the top of the sliding seat body and is used for mounting the electric heating puncher 24, the axis of each mounting hole is vertical and intersected with the axis of the material placing hole, the electric heating puncher is mounted in the mounting hole, a pressing block 23 is fixed on the top of the sliding seat body 22 through bolts and used for pressing and mounting the electric heating puncher 24, and therefore the axis of the punching end of each electric heating puncher 24 is also vertical and intersected with the axis of the material placing cavity.
Because the temperature of the metal pole part of electric iron is higher, in order to improve the safety in utilization, be equipped with a protection shield 25 at the top of slide (briquetting), this protection shield is the bar, and its length direction is on a parallel with the axis of electric iron, and it is located directly over the electric iron, and the high distance between them is greater than 0.5cm and is less than 2cm, and its width is greater than the width (diameter) of electric iron, realizes the protection, avoids the mistake to touch the scald, and this protection shield has the stainless steel to make, has seted up a plurality of bar holes on its surface.
For controlling the motion stroke, this application still is equipped with stop device, and specifically, a punching mechanism corresponds a stop device, and this stop device includes the mounting panel 3 of an L shape, and this mounting panel passes through the bolt fastening on supporting platform, and it is towards the slide, has seted up the mounting hole of bar on the mounting panel, is equipped with two photoelectricity or infrared sensor in the mounting hole of this bar, and it is located the interior (the one end that is close to putting the material chamber) outer (the one end that is kept away from putting the material chamber) extreme position respectively of slide (when keeping away from putting the material chamber) promptly, can trigger this position sensor when the slide slides to interior utmost point spacing, avoids the motion and crosses the journey.
The synchronous driving mechanism is used for driving the sliding blocks on each punching mechanism to synchronously slide inwards (close to the material placing cavity) or outwards (far from the material placing cavity) so as to realize synchronous punching; the synchronous driving mechanism comprises a driving disc 51 and a driving motor 8, wherein the driving disc is of a round or round rectangular structure, a central hole is formed in a supporting platform for controlling the height of the driving disc and facilitating the installation of other components, a lower mounting bracket 11 is fixed at the lower end of the supporting platform, the mounting bracket is positioned right below the central hole, the driving disc is rotationally arranged on the lower mounting bracket through a rotating shaft, the rotating axis of the driving disc is coaxial with a material placing cavity and is positioned right below the material placing cavity, a driven wheel is fixed at the lower end of the driving disc and is coaxial with the driving disc, meanwhile, the driving motor is fixed on the supporting platform through a bracket, the driving motor 8 is vertically arranged, the output end of the driving motor faces downwards, a driving wheel is fixed on the output shaft of the driving motor, a belt is connected between the driving wheel and the driven wheel, and further driving is realized. Connecting rods 52 are uniformly distributed on the periphery of the edge of the driving disc, the number of the connecting rods is the same as that of the punching mechanisms, the head parts of the connecting rods are hinged to the driving disc, the rotation axis of the connecting rods is perpendicular to the axis of the driving disc, the tail parts of the connecting rods are hinged to the sliding seats, specifically, the front ends of the sliding seat bodies are provided with connecting parts, and the connecting rods are hinged to the connecting parts, so that synchronous driving of all the sliding seats is realized; when the driving motor rotates, the driving disc is driven to rotate through the belt, and the driving disc drives the connecting rod to slide inwards or outwards, so that synchronous punching is realized.
When punching, the noise reduction pipe is inserted into the material placing cavity, the driving motor rotates, the electric heating puncher (electric iron) slides inwards along with the sliding block, and penetrates through the hole on the side wall of the material placing cavity to contact with the noise reduction pipe, the noise reduction pipe is melted at the high temperature of the heating rod to form a hole, after punching is completed, namely, the sliding seat reaches the inner limit and triggers the limit sensor, the driving motor rotates reversely, the driving disc is driven to rotate reversely, the sliding seat slides outwards until reaching the outer limit and triggers the limit sensor, and the driving motor stops rotating to realize one punching.
In order to improve the whole degree of automation, be equipped with trigger device in putting the material intracavity, in this embodiment, it is contact switch, and it is two and all sets up in the bottom of putting the material chamber, after two contact switches are triggered simultaneously to the tip of pipe of making an uproar falls, indicates that the pipe of making an uproar falls accomplishes accurate insertion and places, sends the signal and makes driving motor action this moment, realizes automatic triggering formula action of punching.
In order to improve machining precision and efficiency, the insertion of the noise reduction pipe is facilitated, and in the embodiment, a synchronous clamping mechanism is arranged in the material placing cavity and is connected with a synchronous driving mechanism, so that synchronous clamping can be realized during punching.
Referring to fig. 6 and 7, the synchronous clamping mechanism includes a speed reducing assembly and a clamping assembly, the speed reducing assembly is used for being connected with a driving disc to achieve synchronous motion, specifically, the speed reducing assembly includes a mounting housing 61 and a main gear ring 62, a planet carrier 63, a first gear 633 and a second gear 632 which are located in the mounting housing 61, the mounting housing 61 is cylindrical, is fixed at the lower end of a supporting frame 41 and is coaxially arranged with a material placing cavity, the main gear ring is fixed in the mounting housing, the main gear ring is an inner gear ring, namely, gear teeth are arranged on the inner wall of the main gear ring, the planet carrier 63 is rotationally mounted in the mounting housing, a rotation axis of the planet carrier 63 is coaxial with the material placing cavity, the lower end of the planet carrier is rigidly connected with the driving disc to achieve same-angle rotation, at least three main shafts 631 are circumferentially and uniformly distributed at the upper end of the planet carrier, the second gear 632 is rotationally mounted on the main shafts 631, the first gear 633 is fixed at the center of the planet carrier, the first gear is meshed with the three second gears and the main gear ring simultaneously, the first gear is fixed at the top of the three main shafts, the main gear ring is fixed at the top of the three main shafts, when the driving disc rotates, the planet carrier is driven to rotate, the planet carrier rotates, and the planet carrier rotates to the rotating disc is reduced to rotate at a lower speed, and the rotating speed is achieved.
The clamping assembly comprises a rotary table 64, an auxiliary gear ring 65 and an inner clamping roller 72, wherein the rotary table 64 is rigidly connected to an output end above the speed reducing assembly, the auxiliary gear ring 65 is fixed on the upper surface of the rotary table 64 and is coaxial with the rotary table, the inner clamping rollers are at least three and circumferentially distributed in the material placing cavity, the upper end of the auxiliary gear ring 65 extends upwards into the material placing cavity, a first gear tooth is arranged on the inner wall of the auxiliary gear ring and forms an inner gear ring, the inner clamping roller 72 is rotationally arranged in the material placing cavity, the rotation axis of the inner clamping roller is parallel to the axis of the material placing cavity, in particular, an inner cylinder 73 is fixed in the material placing cavity, the inner cylinder 73 is cylindrical and is coaxial with the material placing cavity, a clamping area is formed between the outer wall of the inner cylinder 73 and the inner wall of the material placing cavity and is used for accommodating and clamping a noise reduction pipe, the top of the inner cylinder is an inclined surface and forms a first inclined guide surface so as to facilitate rapid centering and insertion, and a sealing cover 74 is arranged on the top of the inner cylinder; first bar-shaped mounting grooves are uniformly distributed in the circumferential direction of the outer wall of the inner cylinder body, four bar-shaped mounting grooves are formed in the embodiment and are arranged in a staggered mode with a hole body through which the electric heating puncher passes, the length direction of each first bar-shaped mounting groove is parallel to the axis of the material placing cavity, namely, the first bar-shaped mounting grooves are vertically arranged, the cross section of each first bar-shaped mounting groove is U-shaped, and the inner clamping roller is rotatably arranged in each first bar-shaped mounting groove.
Referring to fig. 6 to 9, the inner clamping roller includes a roller body and a clamping portion 721 disposed on the roller body, the clamping portion 721 is eccentric to the rotation axis of the roller body, a first clamping gear 722 is disposed at the lower end of the roller body, the first clamping gear 722 is engaged with the first gear teeth and implements linkage, and when the slider is located at an inner limit position (near one end of the material placing cavity), a protruding end of the clamping portion faces the clamping region and is in a clamping state.
In order to further improve clamping reliability, a gap is formed between the outer wall of the noise reduction pipe and the inner wall of the material placing cavity to prevent shaking, (the rapid insertion of the noise reduction pipe is affected when the gap is too small), an outer clamping roller 71 is arranged on the side wall of the material placing cavity, specifically, second strip-shaped grooves with the same number as that of the inner clamping rollers are arranged on the inner wall of the material placing cavity, the second strip-shaped grooves and the first strip-shaped grooves are positioned in the same radial plane, the length direction of the second strip-shaped grooves is parallel to the length direction of the material placing cavity, the cross section of the second strip-shaped grooves is also U-shaped, the outer clamping roller 71 is rotatably arranged in the second strip-shaped grooves, the outer clamping roller 71 and the inner clamping roller have the same structure, the outer clamping roller 71 comprises a roller body and a clamping part 711 arranged on the roller body, the clamping part is eccentric to the rotation axis of the roller body, a second clamping gear 712 is arranged at the lower end of the roller body, and meanwhile, a second gear tooth is arranged on the outer wall of the auxiliary gear ring and forms an outer gear ring, and the second clamping gear is meshed with the second gear teeth and forms linkage; when the slide block is positioned at the inner limit position, the connecting lines of the protruding ends of the clamping parts on the inner clamping roller and the outer clamping roller are intersected at the axis of the material placing cavity, namely, the two parts are opposite at the moment, and referring to fig. 13, at the moment, the distance L2 between the clamping parts of the inner clamping roller and the outer clamping roller is the smallest, the distance is 85% -95% of the pipe thickness of the noise reduction pipe, the clamping of the noise reduction pipe can be realized, and at the moment, the slide seat is positioned at the inner limit position; when the slide is in outer limit, at this moment, the distance L1 between the two clamping parts is the biggest, and it is 110% -120% of the tube thickness of the pipe of making an uproar falls, is greater than or equal to the clearance (distance) between material setting intracavity wall and the inner tube body outer wall, and it is convenient for make an uproar the fast of pipe of making an uproar inserts, has outer barrel 75 in the material setting intracavity for the processing of being convenient for, and outer pinch roller sets up on this outer barrel, simultaneously, the top of outer barrel is the inclined plane and forms the second oblique guide face, is convenient for make an uproar the pipe of making an uproar centering and inserts.
In this embodiment, a horizontal partition plate is disposed in the material placing cavity, which divides the material placing cavity into an upper cavity and a lower cavity, the height of the upper cavity is far greater than that of the lower cavity, the upper cavity is used as an insertion cavity of the noise reduction tube, and the first and second clamping gears are disposed in the lower cavity.
Simultaneously, the rotation angle of the inner clamping roller and the outer clamping roller in the application is smaller than or equal to 90 degrees.
In order to compensate processing and assembly errors and reduce transmission errors, in this embodiment, an elastic mechanism is disposed between the roller body and the clamping portion, and can implement relative rotation within a certain angle, specifically, referring to fig. 10-11, the clamping portion is cylindrical, mounting holes are penetrated at the upper and lower ends of the clamping portion, the mounting holes are eccentric to the axis of the clamping portion, at least three strip-shaped grooves are uniformly distributed in the circumferential direction in the mounting holes, in this embodiment, four strip-shaped protrusions 7111 corresponding to the strip-shaped grooves are disposed on the outer wall of the inner clamping roller, the width of the strip-shaped protrusions is smaller than the width of the strip-shaped grooves, the strip-shaped protrusions are located in the strip-shaped grooves, gaps are disposed between two sides of the strip-shaped protrusions and two inner walls of the strip-shaped grooves, elastic members are disposed in the gaps, and the elastic forces of the two sides of the strip-shaped protrusions are identical, and the protrusions are located at the center positions of the strip-shaped grooves, in this embodiment, the relative rotation angles of the clamping portion and the inner clamping roller are equal to or greater than or equal to +/-3 degrees and less than +/-5 degrees, wherein the initial stress position is indicated as a clockwise direction (when the initial stress is not equal to or equal to +/-0), namely, the initial stress direction is indicated as a clockwise direction of 10, and a maximum rotation angle is indicated as a counter clockwise direction.
In order to facilitate assembly, the elastic component in this embodiment includes two arc-shaped elastic pieces 79, the arc-shaped elastic pieces are outwards protruded to form arc-shaped elastic portions, and referring to fig. 11, two ends of the two arc-shaped elastic pieces are fixedly connected, and are inserted into a gap between the strip-shaped protrusion and the strip-shaped groove during assembly.
In order to improve the clamping force and friction force and avoid rigid contact, in this embodiment, a rubber layer is disposed on the outer wall of the clamping portion.
According to the perforating device for the noise reduction pipe of the automobile engine, the material placing cavity is arranged, so that the noise reduction pipe can be inserted and positioned, and the drilling precision is improved; the multi-slider type structure design has the advantages of compact structure, low cost, simple driving and large stroke; the driving disk is arranged, so that synchronous action of multiple sliding blocks is realized, the punching efficiency is greatly improved, and the action synchronism is good and the operation is stable; the electric iron is used as a punching device, so that the production and maintenance cost is low, and the punching effect is good; the protection plate is arranged, so that protection can be realized, the use safety is improved, and scalding caused by false touch is avoided; the clamping mechanism is arranged, so that the noise reduction pipe can be rapidly clamped, the clamping precision and stability are improved, the inner diameter of the material placing cavity can be properly increased, the noise reduction pipe can be rapidly inserted, and the efficiency is improved; the linkage speed reducing mechanism is arranged, so that linkage after speed reduction can be realized, single-input multi-output is realized, the linkage performance is good, the running synchronism is high, and the stability is good; the multiple inner clamping rollers and the multiple outer clamping rollers are arranged, so that the clamping effect is good, and the punching precision and efficiency are improved; the eccentric clamping part is structurally arranged, so that the structure is compact, the clamping force and effect are good, and the production cost is low; the clamping part can realize elastic relative rotation, realize compensation of production, processing and assembly errors, and simultaneously can form elastic compression to avoid extrusion deformation; the rubber layer is arranged on the outer wall of the compression part, so that soft contact is realized, friction force and compression effect are improved, certain deformation can be generated, contact area is increased, rigid contact is avoided, and the noise reduction pipe is protected; the arc-shaped elastic component structure has good elastic force and small installation space, and realizes the elastic connection of the clamping part and the roller body; the automobile engine noise reduction pipe punching device is compact in structure, high in clamping efficiency and good in effect, can realize multi-hole synchronous punching, greatly improves punching efficiency and punching effect, is suitable for batch processing, reduces production cost and improves processing efficiency.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the scope of the invention.
Claims (6)
1. The utility model provides a pipe perforating device that falls of automobile engine which characterized in that includes:
the base is used as a mounting and supporting carrier, and a supporting platform is formed at the upper end of the base;
the noise reduction pipe mounting seat is fixed on the supporting platform and used for placing a noise reduction pipe, and a material placing cavity with an open upper end and capable of accommodating the axial insertion of the noise reduction pipe is formed on the noise reduction pipe mounting seat;
the punching mechanism is circumferentially and uniformly distributed around the axis of the material placing cavity and is used for punching the noise reduction pipe, the punching mechanism comprises a sliding seat horizontally arranged on the supporting platform and an electric heating puncher fixed on the sliding seat, the axis of the punching end of the electric heating puncher is vertical and intersects with the axis of the material placing cavity, and the side wall of the material placing cavity is provided with a hole body for allowing the punching end of the electric heating puncher to pass through so as to realize punching;
the synchronous driving mechanism is used for driving the sliding blocks on the punching mechanisms to synchronously slide inwards or outwards; the synchronous driving mechanism comprises a driving disc and a driving motor, the driving disc is rotatably arranged on the base, the rotation axis of the driving disc is coaxial with the material placing cavity, a driven wheel coaxial with the driving disc is arranged on the driving disc, and the driven wheel is connected with a driving wheel on an output shaft of the driving motor through a belt; the edge of the driving disc is circumferentially and uniformly provided with connecting rods with the same number as that of the punching mechanisms, the heads of the connecting rods are hinged to the driving disc, and the tails of the connecting rods are hinged to the sliding seat;
the synchronous clamping mechanism connected with the synchronous driving mechanism is arranged in the material placing cavity and comprises a speed reducing assembly and a clamping assembly, the input end of the speed reducing assembly is coaxial with the driving disc and is rigidly connected with the driving disc, and the output end of the speed reducing assembly is coaxial with the material placing cavity; the clamping assembly comprises a rotary table rigidly connected to the output end of the speed reducing assembly, a secondary gear ring fixed to the upper end of the rotary table, and at least three inner clamping rollers circumferentially and uniformly distributed in the material placing cavity, the upper end of the secondary gear ring extends upwards into the material placing cavity, first gear teeth are arranged on the inner wall of the secondary gear ring, the inner clamping rollers are rotationally arranged in the material placing cavity and have rotation axes parallel to the axis of the material placing cavity, clamping parts eccentric to the rotation axes of the inner clamping rollers are arranged on the inner clamping rollers, a clamping area is formed between the clamping parts and the inner wall of the material placing cavity, first clamping gears meshed with the first gear teeth are arranged at the lower ends of the inner clamping rollers, and when the sliding blocks are located at inner limit positions, the protruding ends of the clamping parts face the clamping area and are in a clamping state;
the inner wall of the material placing cavity is provided with second strip-shaped grooves with the same number as the inner clamping rollers, the length direction of the second strip-shaped grooves is parallel to the length direction of the material placing cavity, an outer clamping roller with the same structure as the inner clamping roller is rotatably arranged in the second strip-shaped grooves, and a second clamping gear at the lower end of the outer clamping roller is meshed with second gear teeth arranged on the outer wall of the auxiliary gear ring; when the sliding block is positioned at the inner limit position, the connecting line of the protruding ends of the clamping parts on the inner clamping roller and the outer clamping roller is intersected with the axis of the material placing cavity.
2. The apparatus for perforating a noise reducing tube of an automotive engine of claim 1, wherein: the electric heating puncher is an electric soldering iron.
3. The apparatus for perforating a noise reducing tube of an automotive engine of claim 1, wherein: the support platform is provided with a support frame, the noise reduction pipe mounting seat is fixed on the support frame, and the driving disc is mounted at the lower end of the support frame.
4. The apparatus for perforating a noise reducing tube of an automotive engine of claim 1, wherein: the sliding seat comprises a sliding seat body, a mounting hole for mounting the electric heating puncher is formed in the top of the sliding seat body, the axis of the mounting hole is vertical and intersects with the axis of the material placing cavity, and a pressing block for pressing and fixing the electric heating puncher is arranged at the top of the sliding seat body.
5. The apparatus for perforating a noise reducing tube of an automotive engine of claim 1, wherein: an inner cylinder body is coaxially arranged in the material placing cavity, a clamping area for inserting a noise reduction pipe is formed between the outer wall of the inner cylinder body and the inner wall of the material placing cavity, and the top of the inner cylinder body is an inclined plane and forms a first inclined guide surface; the outer wall circumference equipartition of interior barrel has first bar mounting groove, the length direction of first bar mounting groove is on a parallel with put the axis in material chamber, interior pinch roller rotationally installs in the first bar mounting groove.
6. The apparatus for perforating a noise reducing tube of an automotive engine of claim 1, wherein: the clamping part is cylindrical, the mounting holes are formed in the two ends of the clamping part, the mounting holes are eccentric to the axis of the clamping part, at least three strip-shaped grooves are uniformly distributed in the mounting holes in the circumferential direction, strip-shaped protrusions corresponding to the strip-shaped grooves are arranged on the outer wall of the inner clamping roller, gaps are formed between the two sides of the strip-shaped protrusions and the two inner walls of the strip-shaped grooves, elastic components are arranged in the gaps, and the elastic forces of the elastic components on the two sides of the strip-shaped protrusions are identical and enable the strip-shaped protrusions to be located in the center of the strip-shaped grooves.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211500567.6A CN115771181B (en) | 2022-11-28 | 2022-11-28 | Automobile engine falls pipe perforating device that makes an uproar |
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| CN202211500567.6A CN115771181B (en) | 2022-11-28 | 2022-11-28 | Automobile engine falls pipe perforating device that makes an uproar |
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| CN115771181A CN115771181A (en) | 2023-03-10 |
| CN115771181B true CN115771181B (en) | 2023-06-02 |
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| CN115771181A (en) | 2023-03-10 |
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