CN114919190B - Heating and milling automatic switching integrated milling heating device - Google Patents

Heating and milling automatic switching integrated milling heating device Download PDF

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Publication number
CN114919190B
CN114919190B CN202210449653.2A CN202210449653A CN114919190B CN 114919190 B CN114919190 B CN 114919190B CN 202210449653 A CN202210449653 A CN 202210449653A CN 114919190 B CN114919190 B CN 114919190B
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groove
liquid
main body
milling
cutter head
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CN114919190A (en
Inventor
孙建广
李港庆
郑宇�
张凯旋
张博
鲁灿
李浩宇
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Hebei University of Technology
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Hebei University of Technology
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • B29C65/2092—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" and involving the use of a facer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23C—MILLING
    • B23C3/00—Milling particular work; Special milling operations; Machines therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
    • B23Q1/25—Movable or adjustable work or tool supports
    • B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
    • B23Q1/34—Relative movement obtained by use of deformable elements, e.g. piezoelectric, magnetostrictive, elastic or thermally-dilatable elements
    • B23Q1/36—Springs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
    • B23Q11/0042—Devices for removing chips
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
    • B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
    • B23Q5/02—Driving main working members
    • B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
    • B23Q5/10—Driving main working members rotary shafts, e.g. working-spindles driven essentially by electrical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/24—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools characterised by the means for heating the tool
    • B29C65/26—Hot fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/02—Preparation of the material, in the area to be joined, prior to joining or welding
    • B29C66/022—Mechanical pre-treatments, e.g. reshaping
    • B29C66/0224—Mechanical pre-treatments, e.g. reshaping with removal of material
    • B29C66/02241—Cutting, e.g. by using waterjets, or sawing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
    • B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
    • B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
    • B29C66/2422—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being circular, oval or elliptical
    • B29C66/24221—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being circular, oval or elliptical being circular
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Abstract

The invention discloses an integrated milling heating device capable of automatically switching between heating and milling, which comprises a pipeline interface, a cutter head, a gear ring, an internal pipeline, a communication hole, a motor, an annular groove, a gear, a support rod, a shell, a liquid-passing shaft sleeve, a liquid-passing shaft and a transfusion hole, wherein the cutter head is arranged on the inner pipeline; the inside of the cutterhead is provided with a liquid guide groove. According to the invention, the heating plate and the milling cutter disc are integrated into a whole, the heating plate and the milling cutter disc do not need to be manually switched in the working process, the problem of inconvenient milling cutter switching is solved, and the portability is improved; the heating mode and the milling mode are switched through the temperature change of the surface of the cutter head, a complex mechanical structure is not needed, and the number of parts is reduced; the same surface is shared by heating and milling, and the two functions of heating and milling are not required to be adjusted again when alternately switched, so that the realization of the functions is ensured, interference phenomenon is avoided, the matching effect is better, and the welding effect is ensured.

Description

Heating and milling automatic switching integrated milling heating device
Technical Field
The invention relates to the field of pipeline hot-melt connection equipment, in particular to an integrated milling heating device capable of automatically switching heating and milling.
Background
With the widespread use of PE (polyethylene) pipe systems in water, gas, oil, coastal farming and other fields, the pipeline laying effort is increasing. The traditional hot-melt welding machine heating plate and the milling cutter disc are separately placed, after the pipeline milling is completed, the milling cutter disc is taken down, and the heating plate is replaced to be heated to complete the butt joint. The milling cutter disc and the heating plate are all in live working, and a small space is unfavorable for alternately replacing the milling cutter disc and the heating plate, so that potential threat is caused to the safety of operators. The replacement back and forth also causes the aging of the line joint to be aggravated, resulting in the inefficiency of the whole construction process.
The document with the application number of 201820031956.1 discloses a thermal fusion welding machine and a hot plate mechanism thereof, wherein the hot plate mechanism is combined with a supporting frame, an automatic lifting structure is adopted, the thermal fusion welding machine is simple and portable, is not used in a limit manner by matching, is not provided with vulnerable parts, and can effectively prolong the service life. However, the device only places the hot plate mechanism on the supporting frame, and the milling mechanism still needs to be manually carried. The temperature sensor of the heating plate is generally considered to be arranged at a certain position inside the heating plate in the document Qiao Tao, xi Dan and Ruilong, namely, the analysis of the performance index of the full-automatic hot-melt welding machine and the technical improvement [ J ]. Gas and heat, 2016 (6): 3238 ], the temperature of a certain point of the heating plate is detected, and the working temperature displayed by the display is also the temperature of the point detected by the temperature sensor. The temperature at this point reaches the temperature range of the heating plate specified by the welding process, and the error range from the preset temperature of the heating plate is + -5 deg.c, which cannot represent the temperature at any point on the heating plate to meet the requirement. Therefore, the prior heating plate has the problem of uneven heating temperature.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide an integrated milling heating device capable of automatically switching heating and milling.
The technical scheme for solving the technical problems is that the invention provides an integrated milling heating device capable of automatically switching between heating and milling, which is characterized by comprising a pipeline interface, a cutter head, a gear ring, an internal pipeline, a communication hole, a motor, an annular groove, a gear, a support rod, a shell, a liquid-passing shaft sleeve, a liquid-passing shaft and a transfusion hole; a liquid guide groove is formed in the cutter head;
the liquid-passing shaft sleeve is fixed in the shell through the support rod; the middle part of the liquid passing shaft is arranged in the liquid passing shaft sleeve and is rotationally connected with the liquid passing shaft sleeve; two ends of the liquid passing shaft are fixedly connected with a cutter head respectively; a gear ring is fixed on the inner side of each cutter head; the shell of the motor is fixed on the shell, and the output end of the motor is fixedly provided with a gear; the gear is meshed with the gear ring;
the outer side wall of the middle part of the liquid passing shaft is provided with at least two annular grooves along the circumferential direction, one type is used for liquid feeding, and the other type is used for liquid returning; the annular groove is a sealed space formed by the liquid passing shaft and the liquid passing shaft sleeve and is used for conducting high-temperature-resistant heat-conducting liquid; at least two transfusion holes are axially formed in the liquid passing shaft, one type is used for liquid feeding, and the other type is used for liquid returning; the bottom of each annular groove is provided with a communication hole along the radial direction of the liquid passing shaft; one end of the transfusion hole is communicated with the annular grooves with the same function respectively through the communication holes, and the other end is communicated with the two ends of the liquid guide groove respectively; the shell is provided with a pipeline connector, one end of the pipeline connector is communicated with one end of an internal pipeline, and the other end of the pipeline connector is communicated with an external pipeline; the other end of the internal pipeline is communicated with the annular groove.
Compared with the prior art, the invention has the beneficial effects that:
(1) According to the invention, the heating plate and the milling cutter disc are integrated into a whole, the heating plate and the milling cutter disc do not need to be manually switched in the working process, the problem of inconvenient milling cutter switching is solved, and the portability is improved; the heating mode and the milling mode are switched through the temperature change of the surface of the cutter head, a complex mechanical structure is not needed, and the number of parts is reduced; the same surface is shared by heating and milling, and the two functions of heating and milling are not required to be adjusted again when alternately switched, so that the realization of the functions is ensured, interference phenomenon is avoided, the matching effect is better, and the welding effect is ensured.
(2) The milling and heating of the invention share the same surface, the milling cutter is in a convex state on the whole surface during milling, and has chip grooves for chip removal, so the milling cutter is not a complete surface and can not be directly heated, and the movable telescopic table and the milling cutter are arranged for accurate matching movement, so the conversion between a heating mode and a milling mode can be carried out without manual operation, the use is more convenient and rapid, and the automation is completely realized.
(3) The invention does not use the traditional resistance wire for heating, but adopts the high-temperature resistant heat-conducting liquid for heating, and the high-temperature resistant heat-conducting liquid is enabled to be rapidly spread on the surface of the cutter head through the structural design of the milling heating device, so that the surface of the cutter head is rapidly heated, and the uniformity of the temperature is ensured. After heating, the high-temperature-resistant heat-conducting liquid flows back to an external constant-temperature pumping device, so that heat recovery is realized.
(4) Under the heating mode, two bimetallic strips are heated to bend and arch, so that the telescopic table extends out to be flush with the surface of the cutter disc, the surface of the cutter disc is smooth, the flatness of the surface of the treated pipeline is high, and the heating quality and the welding effect are ensured. And meanwhile, the milling cutter and the telescopic table are not interfered with each other.
Drawings
FIG. 1 is an exploded view of the overall structure of the present invention;
FIG. 2 is an internal structural view of the overall structure of the present invention;
FIG. 3 is a cross-sectional view of the overall structure of the present invention;
FIG. 4 is a perspective view of the liquid passing shaft of the present invention;
FIG. 5 is an exploded view of the cutterhead of the present invention;
FIG. 6 is an exploded view of another angle of the cutterhead of the present invention;
fig. 7 is a partial, angular perspective view of the cutterhead body of the present invention;
fig. 8 is a partial, alternative perspective view of the cutterhead body of the present invention;
FIG. 9 is a perspective view of the telescopic table of the present invention;
FIG. 10 is an angular perspective view of the stop block of the present invention;
FIG. 11 is another angular perspective view of the stop block of the present invention;
fig. 12 is a perspective view of the milling cutter of the present invention;
fig. 13 is a state diagram of the cutterhead of the present invention during milling;
fig. 14 is a state diagram of the cutterhead of the present invention when heated.
In the figure, a pipeline interface 701, a cutter 702, a gear ring 703, a bearing 704, an internal pipeline 705, a communication hole 706, a motor 707, an annular groove 708, a gear 709, a support rod 710, a shell 711, a liquid passing shaft sleeve 712, a liquid passing shaft 713, a transfusion hole 714 and a pipeline butt joint 715;
the telescopic table 7021, the milling cutter 7022, the first reset spring 7023, the small bimetallic strip 7024, the large bimetallic strip 7025, the limiting block 7026, the cutter head main body 7027, the liquid guide groove 7028, the first infusion port 7029, the second reset spring 70210, the third reset spring 70211 and the connecting hose 70212;
a first groove 7021-1, a first rail 7021-2, a first limiting hole 7021-3, a first placement groove 7021-4 and a second infusion port 7021-5; limiting groove I7022-1; track two 7026-1, limiting hole two 7026-2, track three 7026-3 and small boss 7026-4; the device comprises a groove II 7027-1, a limiting hole III 7027-2, a groove III 7027-3, a limiting groove II 7027-4, a boss 7027-5, a limiting hole IV 7027-6, a main body groove 7027-7, a mounting groove II 7027-8 and a transfusion port III 7027-9;
Detailed Description
Specific examples of the present invention are given below. The specific examples are provided only for further elaboration of the invention and do not limit the scope of the claims of the present application.
The invention provides an integrated milling heating device (device for short) with automatic switching of heating and milling, which is characterized by comprising a pipeline interface 701, a cutter head 702, a gear ring 703, a bearing 704, an internal pipeline 705, a communication hole 706, a motor 707, an annular groove 708, a gear 709, a support rod 710, a shell 711, a liquid passing shaft sleeve 712, a liquid passing shaft 713 and a liquid conveying hole 714; a liquid guide groove 7028 is formed in the cutter head 702;
the liquid-passing shaft sleeve 712 is fixed inside the housing 711 by the support rod 710; the middle part of the liquid passing shaft 713 is arranged in the liquid passing shaft sleeve 712 and is rotationally connected with the liquid passing shaft sleeve 712 through the bearing 704; two ends of the liquid passing shaft 713 are fixedly connected with a cutter head 702 respectively through screws; a gear ring 703 is fixed on the inner side of each cutter 702; the housing of the motor 707 is fixed to the housing 711, and the output end thereof extends into the housing 711, and is fixedly provided with a gear 709; the gear 709 is meshed with the gear ring 703, the motor 707 drives the gear 709 to rotate, the gear 709 drives the gear ring 703 to further drive the cutter head 702 to rotate, and the cutter head 702 drives the liquid passing shaft 713 to rotate;
the outer side wall of the middle part of the liquid passing shaft 713 is provided with at least two annular grooves 708 along the circumferential direction, one type is used for liquid feeding and the other type is used for liquid returning; the annular groove 708 is a sealed space formed by the liquid passing shaft 713 and the liquid passing shaft sleeve 712, and is used for conducting high-temperature-resistant heat-conducting liquid; at least two transfusion holes 714 are formed in the liquid passing shaft 713 along the axial direction (the number of the annular grooves 708 and the transfusion holes 714 are not necessarily the same), one type is used for liquid feeding and the other type is used for liquid returning; the bottom of each annular groove 708 is provided with a communication hole 706 along the radial direction of the liquid passing shaft 713; one end of the transfusion hole 714 is communicated with the annular grooves 708 with the same function respectively through the communication holes 706, and the other end is communicated with two ends of the liquid guide groove 7028 respectively; the shell 711 is provided with a pipeline interface 701, one end of the pipeline interface is communicated with one end of an internal pipeline 705, and the other end of the pipeline interface is communicated with an external constant-temperature pumping device through an external pipeline; the other end of the internal conduit 705 extends through the fluid sleeve 712 and communicates with the annular groove 708.
Preferably, the device further comprises a line abutment 715; two ends of the pipeline butt joint 715 are respectively connected with the ends of the transfusion hole 714 and the liquid guide groove 7028; the present embodiment is: one end of the pipeline butt joint 715 is provided with threads and is in threaded connection with the infusion hole 714; the other end surface is smooth and is inserted into the end of the liquid guide groove 7028.
Preferably, sealing rings are provided at both the annular groove 708 and the pipe nipple 715 to prevent liquid leakage.
Preferably, the cutterhead 702 comprises a telescopic table 7021, a milling cutter 7022, a first reset spring 7023, a small bimetallic strip 7024, a large bimetallic strip 7025, a limiting block 7026, a cutterhead main body 7027, a second reset spring 70210, a third reset spring 70211 and a connecting hose 70212;
a liquid passing groove is formed in the telescopic table 7021; two ends of the liquid through groove are at least two liquid delivery ports II 7021-5, one type is used for liquid inlet, and the other type is used for liquid return; the limiting block 7026 is provided with a small boss 7026-4; the cutter head main body 7027 is provided with a main body groove 7027-7; a protruding boss 7027-5 is provided at one side of the main body groove 7027-7; the other side of the main body groove 7027-7 is provided with at least two infusion ports three 7027-9, one type is used for liquid inlet and the other type is used for liquid return;
a liquid guide groove 7028 is formed in the cutter head main body 7027; two ends of the liquid guide groove 7028 are provided with a liquid infusion port I7029, one type is used for liquid inlet and the other type is used for liquid return, and the liquid guide groove is respectively communicated with the other ends of the liquid infusion holes 714 with the same function through pipeline butt joints 715; the limiting block 7026 is matched with the cutter head main body 7027 to form a moving pair, and the limiting block 7026 can only move along the bottom surface of the main body groove 7027-7; one end of the second reset spring 70210 is fixedly connected with the limiting block 7026, and the other end of the second reset spring is movably connected with the cutter head main body 7027; one end of the reset spring III 70211 is fixedly connected with the cutter head main body 7027, and the other end of the reset spring III 70211 is movably connected with the milling cutter 7022; the small bimetallic strip 7024 is placed in the milling cutter 7022, is pressed on the boss 7027-5 through the three reset springs 70211, and is contacted with the boss 7027-5 after being deformed by heating; the telescopic platform 7021 and the limiting block 7026 are matched to form a moving pair, the telescopic platform 7021 and the cutter head main body 7027 are matched to form a moving pair, so that the telescopic platform 7021 can only move along the side face of the main body groove 7027-7, and the telescopic platform 7021 is flush or sunken relative to the surface of the cutter head main body 7027; in the milling state, the small boss 7026-4 can support and retain the milling cutter 7022; one end of the first reset spring 7023 is fixedly connected with the telescopic table 7021, and the other end of the first reset spring is fixedly connected with the cutter head main body 7027; the large bimetallic strip 7025 is placed in the cutter head main body 7027, is pressed in the cutter head main body 7027 through the telescopic table 7021, and contacts with the telescopic table 7021 after being deformed by heating; the connecting hose 70212 is arranged in the telescopic table 7021 and the cutter head main body 7027, one end of the connecting hose is in threaded connection with the second infusion port 7021-5, and the other end of the connecting hose is in threaded connection with the third infusion port 7027-9 and is used for conducting the telescopic table 7021 and the cutter head main body 7027, so that circulation of high-temperature-resistant heat-conducting liquid is achieved.
Preferably, the telescopic platform 7021 is provided with a groove I7021-1, a limiting hole I7021-3 and a mounting groove I7021-4, and a track I7021-2 is arranged; a transfusion port II 7021-5 is arranged in the first setting groove 7021-4; a milling cutter 7022 is provided with a limiting groove I7022-1; the limiting block 7026 is also provided with a second rail 7026-1 and a third rail 7026-3, and a limiting hole 7026-2 is formed; the other side of the main body groove 7027-7 is provided with a groove II 7027-1 and a placement groove II 7027-8; the second setting groove 7027-8 is internally provided with a third infusion port 7027-9; the bottom surface of the main body groove 7027-7 is provided with a third limiting hole 7027-2, a third groove 7027-3, a second limiting groove 7027-4 and a fourth limiting hole 7027-6;
the track III 7026-3 is matched with the groove III 7027-3 so that the limiting block 7026 and the cutter head main body 7027 form a moving pair, and the limiting block 7026 can only move along the bottom surface of the main body groove 7027-7; one end of the second reset spring 70210 is fixed in the second limiting hole 7026-2, and the other end of the second reset spring contacts with the side wall of the main body groove 7027-7 of the cutter head main body 7027; one end of the reset spring III 70211 is fixed in the limit hole IV 7027-6, and the other end of the reset spring III 70211 is contacted with the lower wall of the milling cutter 7022; the small bimetallic strip 7024 is placed in a limiting groove I7022-1 of the milling cutter 7022 and is pressed on the boss 7027-5 through a return spring III 70211; the first groove 7021-1 is matched with the second track 7026-1 to enable the telescopic platform 7021 and the limiting block 7026 to form a moving pair, the first track 7021-2 is matched with the second groove 7027-1 to enable the telescopic platform 7021 and the cutter head main body 7027 to form a moving pair, and further the telescopic platform 7021 can only move along the side face of the main body groove 7027-7, so that the telescopic platform 7021 is flush or sunken relative to the surface of the cutter head main body 7027, namely the maximum distance of the second groove 7027-1 for limiting the movement of the telescopic platform 7021 is flush with the surface of the cutter head main body 7027; one end of the reset spring I7023 is fixed in the limiting hole I7021-3, and the other end of the reset spring I7023 is fixed in the limiting hole III 7027-2; the large bimetallic strip 7025 is placed in the second limiting groove 7027-4 and is pressed in the second limiting groove 7027-4 through the telescopic table 7021; the connection hose 70212 is disposed in the first mounting groove 7021-4 and the second mounting groove 7027-8.
Preferably, the sump 7028 is fully disposed within the cutterhead body 7027.
Preferably, the bi-metallic strip is a composite material composed of two or more metals or other materials having suitable properties. The bimetal is also called a thermal bimetal, and because of the different thermal expansion coefficients of the component layers, when the temperature changes, the deformation of the active layer is larger than that of the passive layer, so that the whole bimetal is bent towards one side of the passive layer, and the curvature of the composite material changes to generate deformation.
Preferably, the constant temperature pumping device stores high temperature resistant heat conducting liquid, has heating and pumping functions, maintains the temperature of the high temperature resistant heat conducting liquid in a proper range through the heating function, and realizes the flow of the high temperature resistant heat conducting liquid through the pumping function. Preferably, the high temperature resistant heat conducting liquid is preferably a high temperature resistant oil.
The working principle and the working flow of the invention are as follows:
the device is used for pipeline welding. Firstly, respectively clamping two pipelines in two clamping mechanisms; since the high-temperature-resistant heat-conducting liquid is not introduced, the cutter 702 is in a milling state (namely an initial state) at the moment, the telescopic platform 7021 is tightly attached to the bottom surface of the main body groove 7027-7 through the tension of the first reset spring 7023, the milling cutter 7022 is in an extending state, the limiting block 7026 is extruded to be right below the milling cutter 7022 by the telescopic platform 7021, meanwhile, the small boss 7026-4 supports and clamps the milling cutter 7022, the movement of the milling cutter 7022 is limited, the milling cutter 7022 is prevented from retracting when the end surface of a pipeline is milled, and the second reset spring 70210 is in a compressed state;
then the motor 707 is electrified to rotate to drive the two-sided cutterhead 702 to rotate, and after the fixed rotation speed is reached, the two pipelines are clung to the two end surfaces of the cutterhead 702; the milling cutter 7022 continuously mills the end surface of the pipeline under the action of rotation, and a part of space reserved by the sinking of the telescopic table 7021 serves as a chip groove, so that chips are smoothly discharged; when there is a continuous uniform chip, the cutterhead 702 is separated from the pipe.
After the motor 707 is powered off and stops rotating, an operator checks that the two end faces are qualified in milling, the cutter 702 returns to the working position again, and the heating process is started; the external constant temperature pumping device continuously provides power for the high temperature resistant heat conducting liquid through the internal pump, and then starts to be introduced with the high temperature resistant heat conducting liquid, and flows into the liquid guide groove 7028 from the liquid inlet in the first liquid inlet 7029, flows through the whole cutter head main body 7027, uniformly heats the cutter head main body, flows out from the liquid return opening in the third liquid inlet 7027-9, flows through the connecting hose 70212 to the liquid inlet in the second liquid inlet 7021-5, flows into the liquid through groove of the telescopic table 7021, uniformly heats the telescopic table 7021, and uniformly heats the surface of the whole cutter head; the liquid flows back to the constant temperature pumping device through the liquid return port in the liquid delivery port II 7021-5, the connecting hose 70212, the liquid inlet port in the liquid delivery port III 7027-9, the liquid guide groove 7028, the liquid return port in the liquid delivery port I7029, the pipeline butt joint 715, the liquid delivery hole 714, the communication hole 706, the annular groove 708, the internal pipeline 705, the pipeline interface 701 and the external pipeline to form circulation.
After the cutter 702 is heated, the small bimetallic strip 7024 and the large bimetallic strip 7025 arch due to thermal deformation, the large bimetallic strip 7025 jacks up the telescopic platform 7021, and the telescopic platform 7021 can only move upwards along the side face of the main body groove 7027-7 under the action of a moving pair consisting of the groove II 7027-1 and the track I7021-2; while the telescopic table 7021 is being moved upward, the return spring one 7023 is stretched; because the limiting block 7026 can only move along the bottom surface of the main body groove 7027-7, when the telescopic platform 7021 moves upwards, the first groove 7021-1 and the second track 7026-1 are matched to enable the contact surface of the telescopic platform 7021 and the limiting block 7026 to move tightly, the limiting block 7026 is pulled to move, and the compressed second return spring 70210 also provides power for the limiting block 7026, so that movement is ensured; as the stop block 7026 moves, the second return spring 70210 is in a natural state and returns to its original length, the milling cutter 7022 is separated from the limitation of the small boss 7026-4 on the stop block 7026, the small bimetallic strip 7024 arches, the milling cutter 7022 moves away from the boss 7027-5, and the third return spring 70211 is compressed; when the temperature reaches the set temperature, the telescoping platform 7021 is extended flush with the surface of the cutterhead body 7027 and the milling cutter 7022 is retracted into the body slot 7027-7.
Then, two pipelines are closely attached to the two end surfaces of the cutter 702 again, a certain pressure is maintained, and the end surfaces of the pipelines start to absorb heat and melt to soften; when the heat absorption time is reached, the cutter head 702 is separated from the pipe fitting, the cutter head 702 is taken away, and then two pipelines are quickly butted and kept at a certain pressure, and the pipelines are waited for cooling; the constant temperature pumping device stops conveying the high temperature resistant heat conducting liquid, and switches to conveying air, so that the high temperature resistant heat conducting liquid in the cutterhead 702 and the pipeline is recovered to the constant temperature pumping device; after the cutterhead 702 is gradually cooled, the small bimetallic strip 7024 and the large bimetallic strip 7025 recover to original shapes, the first reset spring 7023 provides pulling force to retract the telescopic platform 7021 and extrude the limiting block 7026 to enable the limiting block 7026 to move in the opposite direction, and the second reset spring 70210 is limited by the extrusion action of the limiting block 7026 and is continuously compressed; the three reset springs 70211 are in a natural state to restore the original length, the milling cutter 7022 is jacked up, the milling cutter 7022 extends out, and the cutter head 702 is restored to the original state.
And after the pipeline is cooled, the pipeline is disassembled and the welding is completed.
The invention is applicable to the prior art where it is not described.

Claims (5)

1. The integrated milling heating device capable of automatically switching between heating and milling is characterized by comprising a pipeline interface, a cutter disc, a gear ring, an internal pipeline, a communication hole, a motor, an annular groove, a gear, a support rod, a shell, a liquid-passing shaft sleeve, a liquid-passing shaft and a transfusion hole; a liquid guide groove is formed in the cutter head;
the liquid-passing shaft sleeve is fixed in the shell through the support rod; the middle part of the liquid passing shaft is arranged in the liquid passing shaft sleeve and is rotationally connected with the liquid passing shaft sleeve; two ends of the liquid passing shaft are fixedly connected with a cutter head respectively; a gear ring is fixed on the inner side of each cutter head; the shell of the motor is fixed on the shell, and the output end of the motor is fixedly provided with a gear; the gear is meshed with the gear ring;
the outer side wall of the middle part of the liquid passing shaft is provided with at least two annular grooves along the circumferential direction, one type is used for liquid feeding, and the other type is used for liquid returning; the annular groove is a sealed space formed by the liquid passing shaft and the liquid passing shaft sleeve and is used for conducting high-temperature-resistant heat-conducting liquid; at least two transfusion holes are axially formed in the liquid passing shaft, one type is used for liquid feeding, and the other type is used for liquid returning; the bottom of each annular groove is provided with a communication hole along the radial direction of the liquid passing shaft; one end of the transfusion hole is communicated with the annular grooves with the same function respectively through the communication holes, and the other end is communicated with the two ends of the liquid guide groove respectively; the shell is provided with a pipeline connector, one end of the pipeline connector is communicated with one end of an internal pipeline, and the other end of the pipeline connector is communicated with an external pipeline; the other end of the internal pipeline is communicated with the annular groove;
the cutter head comprises a telescopic table, a milling cutter, a first reset spring, a small bimetallic strip, a large bimetallic strip, a limiting block, a cutter head main body, a second reset spring, a third reset spring and a connecting hose;
a liquid passing groove is formed in the telescopic table; two ends of the liquid through groove are two infusion ports, one type is used for liquid inlet, and the other type is used for liquid return; the limiting block is provided with a small boss; the cutter head main body is provided with a main body groove; a convex boss is arranged on one side of the main body groove; the other side of the main body groove is provided with a third infusion port, one type is used for liquid inlet, and the other type is used for liquid return;
a liquid guide groove is formed in the cutter head main body; two ends of the liquid guide groove are respectively provided with a first liquid inlet and a second liquid outlet, and the first liquid outlet and the second liquid outlet are respectively communicated with the other ends of the liquid guide holes with the same function; the limiting block is matched with the cutter head main body to form a moving pair, and the limiting block can only move along the bottom surface of the main body groove; one end of the second reset spring is fixedly connected with the limiting block, and the other end of the second reset spring is movably connected with the cutter head main body; one end of the reset spring III is fixedly connected with the cutter head main body, and the other end of the reset spring III is movably connected with the milling cutter; the small bimetallic strip is placed in the milling cutter, is pressed on the boss through the reset spring III, and is contacted with the boss after being deformed by heating; the telescopic table and the limiting block are matched to form a moving pair, and the telescopic table and the cutter head main body are matched to form a moving pair, so that the telescopic table can only move along the side face of the main body groove, and the telescopic table is flush or sunken relative to the surface of the cutter head main body; when in a milling state, the small boss can support and clamp the milling cutter; one end of the first reset spring is fixedly connected with the telescopic table, and the other end of the first reset spring is fixedly connected with the cutter head main body; the large bimetallic strip is placed in the cutter head main body, is pressed in the cutter head main body through the telescopic table, and contacts with the telescopic table after being deformed by heating; the connecting hose is arranged in the telescopic table and the cutter head main body, one end of the connecting hose is connected with the second infusion port, and the other end of the connecting hose is connected with the third infusion port and is used for conducting the telescopic table and the cutter head main body.
2. The heating and milling automatic switching integrated milling heating apparatus of claim 1, further comprising a pipe nipple; two ends of the pipeline butt joint are respectively connected with the ends of the transfusion hole and the liquid guide groove.
3. The heating and milling automatic switching integrated milling heating device according to claim 2, wherein sealing rings are arranged at the annular groove and the pipeline butt joint to prevent liquid from leaking.
4. The automatic heating and milling switching integrated milling heating device according to claim 1, wherein the telescopic table is provided with a groove I, a limiting hole I and a placement groove I, and a track I is arranged; an infusion port II is arranged in the first placement groove; a first limit groove is formed in the milling cutter; the limiting block is provided with a second track and a third track, and a limiting hole II is formed in the limiting block; the other side of the main body groove is provided with a groove II and a mounting groove II; an infusion port III is arranged in the second placement groove; the bottom surface of the main body groove is provided with a third limit hole, a third groove, a second limit groove and a fourth limit hole;
the third rail is matched with the third groove to enable the limiting block and the cutter head main body to form a moving pair, and the limiting block can only move along the bottom surface of the main body groove; one end of the second reset spring is fixed in the second limiting hole, and the other end of the second reset spring is contacted with the side wall of the main body groove of the cutter head main body; one end of the reset spring III is fixed in the limit hole IV, and the other end of the reset spring III is contacted with the lower wall of the milling cutter; the small bimetallic strip is placed in a first limit groove of the milling cutter and is pressed on the boss through a third reset spring; the first groove is matched with the second groove to enable the telescopic table and the limiting block to form a moving pair, the second groove is matched with the first groove to enable the telescopic table and the cutter head main body to form a moving pair, and therefore the telescopic table can only move along the side face of the main body groove, and the telescopic table is flush or sunken relative to the surface of the cutter head main body; one end of the first reset spring is fixed in the first limiting hole, and the other end of the first reset spring is fixed in the third limiting hole; the large bimetallic strip is placed in the second limiting groove and is pressed in the second limiting groove through the telescopic table; the connecting hose is arranged in the first arranging groove and the second arranging groove.
5. The automatic switching heating and milling integrated milling heating apparatus as recited in claim 1, wherein the liquid guide groove is fully disposed in the cutter head body.
CN202210449653.2A 2022-04-26 2022-04-26 Heating and milling automatic switching integrated milling heating device Active CN114919190B (en)

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CN117259821B (en) * 2023-11-23 2024-02-09 成都成缸液压设备制造有限公司 Machining mechanism for machining inner hole of high-pressure oil cylinder
CN117359385B (en) * 2023-12-08 2024-03-08 烟台隆辉金属制品有限公司 Machine tool cutter temperature control device

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CN106042348A (en) * 2015-04-04 2016-10-26 凯孚尔有限公司 Heating channel unit, method for producing a heating channel unit, and folding device

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