Automatic inner and outer wall fire polishing equipment and polishing method for tubulars

Abstract

The application relates to the technical field of quartz tube fire polishing, and more particularly to a tubular member inner and outer wall automatic fire polishing device and a polishing method. The polishing device comprises a rack, an inner polishing spray gun device movably arranged on the rack, an outer polishing spray gun device movably arranged on the rack, a connecting piece connected with the inner polishing spray gun device and the outer polishing spray gun device respectively and used for synchronously moving the inner polishing spray gun device and the outer polishing spray gun device, a rotating mechanism arranged corresponding to the inner polishing spray gun device and used for bearing the tubular member and driving the tubular member to rotate, a first moving mechanism arranged on the rack and connected with the inner polishing spray gun device or the outer polishing spray gun device, and a gas supply device communicated with the inner polishing spray gun device and the outer polishing spray gun device. The polishing device aims to solve the problem that the outer wall polishing needs manual assistance in the prior art, improve the automation degree of the polishing device, reduce the working intensity of employees, and improve the fire polishing stability of products.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of quartz tube fire polishing, and more specifically, to a tubular member inner and outer wall automatic fire polishing equipment and polishing method. BACKGROUND

[0002] In order to make the quartz product surface transparent after machining, the current technology is to polish the quartz product surface by flame precision burning. For the fire polishing work of some large-diameter quartz round tubes, most of the work is done manually, and at least two people are needed to cooperate to complete the work. One person polishes the outer wall of the quartz round tube, and the other person polishes the inner wall of the quartz round tube. Both people must work at the same time to ensure that the two precision burning spray guns are at approximately the same position. Otherwise, the quartz round tube may be broken due to stress concentration. The operation is difficult and the processing environment is harsh with high temperature.

[0003] In order to realize the automatic fire polishing precision burning of the inner and outer walls of the quartz tube product, some automatic equipment has appeared in the prior art to achieve this. For example, a quartz tube inner wall automatic fire polishing device is proposed in Chinese patent application No. CN202011379979.X. The device simulates the action of manual precision burning by controlling the forward and backward movement of the spray gun and the swing of the spray gun to realize the automatic fire polishing of the inner wall of the quartz tube. However, this technology can only realize the inner wall fire polishing of the quartz tube, and the outer wall needs to be polished by a person holding a spray gun again. The employee needs to move with the internal spray gun at all times, and when the fire polishing of a certain area is completed, the employee needs to manually rotate the quartz tube by a certain angle and then start the fire polishing of the remaining area. SUMMARY

[0004] The main purpose of the present application is to provide a tubular member inner and outer wall automatic fire polishing equipment and polishing method. The polishing equipment aims to solve the problem of manual assistance for outer wall polishing in the prior art, improve the automation degree of the polishing equipment, reduce the work intensity of the employees, and improve the stability of the product fire polishing.

[0005] To solve the above technical problems, on the one hand, a tubular member inner and outer wall automatic fire polishing equipment is provided, which comprises: a rack;

[0006] An inner polishing spray gun device is movably arranged on the rack and used for fire polishing the inner side of the tubular member.

[0007] An outer polishing spray gun device is movably arranged on the rack and used for fire polishing the outer side of the tubular member.

[0008] a connecting member connected with the inner polishing spray gun device and the outer polishing spray gun device respectively, for synchronously moving the inner polishing spray gun device and the outer polishing spray gun device;

[0009] a rotating mechanism arranged corresponding to the inner polishing spray gun device, for carrying and rotating the tubular member;

[0010] a first moving mechanism arranged on the frame and connected with the inner polishing spray gun device or the outer polishing spray gun device, for moving the inner polishing spray gun device and the outer polishing spray gun device to approach or move away from the rotating mechanism;

[0011] a gas supply device communicated with the inner polishing spray gun device and the outer polishing spray gun device, for respectively supplying the gas required by the inner polishing spray gun device and the outer polishing spray gun device during combustion.

[0012] In any of the above technical solutions, further comprising:

[0013] a second moving mechanism arranged on the first moving mechanism, the first moving mechanism for moving the second moving mechanism in a first direction;

[0014] a third moving mechanism arranged on the second moving mechanism, the second moving mechanism for moving the third moving mechanism in a second direction;

[0015] the inner polishing spray gun device arranged on the third moving mechanism, the third moving mechanism for moving the inner polishing spray gun device in a third direction;

[0016] the first direction, the second direction and the third direction are arranged perpendicularly to each other.

[0017] In any of the above technical solutions, further comprising:

[0018] a connecting seat movably arranged on the frame along the first direction;

[0019] a supporting seat movably arranged on the connecting seat along the third direction;

[0020] an angle adjusting assembly slidably arranged on the supporting seat along the second direction, the outer polishing spray gun device arranged on the angle adjusting assembly, the angle adjusting assembly for adjusting the orientation of the outer polishing spray gun device.

[0021] In any of the above technical solutions, further comprising:

[0022] a preheating spray gun device arranged on the side of the inner polishing spray gun device away from the outer polishing spray gun device, for preheating the tubular member;

[0023] The preheating lance device is fixedly connected with the inner polishing lance device or the outer polishing lance device, and the preheating lance device is communicated with the gas supply device for supplying gas required for combustion to the preheating lance device.

[0024] In any of the above technical solutions, further comprising:

[0025] The feeding and discharging device is arranged corresponding to the rotating mechanism.

[0026] The transfer table is arranged corresponding to the feeding and discharging device and is used for carrying the tubular member, and the feeding and discharging device is used for moving the tubular member between the transfer table and the rotating mechanism.

[0027] In any of the above technical solutions, further comprising:

[0028] The first fixed seat;

[0029] The first supporting roller is fixedly arranged in the first fixed seat.

[0030] The rotating roller is rotatably arranged in the first supporting roller, and the rotating roller is used for extending to the inside of the tubular member and forming extrusion on the inner wall of the tubular member.

[0031] The temperature control mechanism is connected with the rotating roller and is used for controlling the temperature of the rotating roller.

[0032] In any of the above technical solutions, further comprising:

[0033] The electric heating wire is arranged in the rotating roller and extends to the outside of the rotating roller at both ends.

[0034] The first annular electric brush is coaxially fixedly arranged in the rotating roller and is electrically connected with one end of the electric heating wire.

[0035] The second annular electric brush is coaxially fixedly arranged in the rotating roller and is electrically connected with the other end of the electric heating wire.

[0036] The first and second wiring members are fixedly arranged in the first fixed seat and are electrically connected with the first and second annular electric brushes respectively.

[0037] In any of the above technical solutions, further comprising:

[0038] The second fixed seat is arranged corresponding to the lower side of the first fixed seat.

[0039] The second supporting roller is fixedly arranged in the second fixed seat.

[0040] A positioning roller rotatably arranged on the second supporting roller, the positioning roller being configured to extend to the inside of the tubular member and to press the inner wall of the tubular member.

[0041] In any of the above technical solutions, further comprising:

[0042] A fourth moving mechanism, the first fixed seat being arranged on the fourth moving mechanism, the fourth moving mechanism being configured to drive the first fixed seat to move up and down;

[0043] A fifth moving mechanism, the second fixed seat being arranged on the fifth moving mechanism, the fifth moving mechanism being configured to drive the second fixed seat to move up and down;

[0044] A sixth moving mechanism, the fourth moving mechanism and the fifth moving mechanism being arranged on the sixth moving mechanism, the sixth moving mechanism being configured to drive the fourth moving mechanism and the fifth moving mechanism to move close to or away from the rotating mechanism.

[0045] In another aspect, a method for automatically fire polishing the inner and outer walls of a tubular member is provided, which is applied to the fire polishing device for the inner and outer walls of a tubular member as described in any of the above technical solutions, and comprises the following steps:

[0046] S1, placing the tubular member on the rotating mechanism;

[0047] S2, adjusting the positions of the first fixed seat and the second fixed seat, so that the rotating roller and the positioning roller extend to the distal end of the tubular member, and the rotating roller and the positioning roller are in contact with the inner wall of the tubular member, and the rotating roller is above and the positioning roller is below;

[0048] S3, adjusting the outer polishing spray gun device and the inner polishing spray gun device to positions corresponding to the tubular member, turning on the gas supply device, igniting the outer polishing spray gun device and the inner polishing spray gun device, heating the temperature of the outer wall of the tubular member to (P-100) to (P+300) by the outer polishing spray gun device, heating the temperature of the inner wall of the tubular member to (P+200) to (P+600) by the inner polishing spray gun device, and turning on the temperature control mechanism to adjust the surface temperature of the rotating roller to 600-1000℃, P being the temperature of the softening point of the tubular member, and P being greater than 1000℃;

[0049] S4, turning on the rotating mechanism to drive the tubular member to rotate, and making the region of the inner wall of the tubular member corresponding to the inner polishing spray gun device contact the rotating roller again after being fire polished by the inner polishing spray gun device;

[0050] S5, after the inner and outer walls of the tubular member are fire polished, turning off the outer polishing spray gun device, the rotating roller and the positioning roller, and finally taking the tubular member off the rotating mechanism.

[0051] The beneficial effects are:

[0052] 1. The polishing equipment of the present application connects the inner polishing spray gun device and the outer polishing spray gun device through the connecting piece, so that they move synchronously under the drive of the first moving mechanism, and cooperate with the action of the rotating mechanism, so that the inner polishing spray gun device and the outer polishing spray gun device can superimpose the rotating action of the rotating mechanism during the movement of the inner and outer sides of the tubular piece, so as to synchronously fire polish the inner and outer sides of the tubular piece in a spiral movement process, avoiding the problem of asynchronous fire polishing of the inner and outer sides, improving the uniformity of the inner and outer fire polishing, and stabilizing the quality of the fire polishing.

[0053] 2. The polishing equipment of the present application cooperates the first moving mechanism, the second moving mechanism and the third moving mechanism, so as to automatically adjust the distance and corresponding position of the inner polishing spray gun device and the inner side wall of the tubular piece, and facilitate the automatic adjustment of the area size of the inner side wall baked by the flame; similarly, through the setting of the connecting seat, the supporting seat and the angle adjusting assembly, the distance and corresponding position of the outer polishing spray gun device and the outer side wall of the tubular piece can be adjusted, and the area size of the outer side wall baked by the flame can be adjusted, so as to facilitate the control of the time length of the same position on the tubular piece in the flame area, and facilitate the predetermined temperature and predetermined time length of the inner and outer side walls of the tubular piece.

[0054] 3. The polishing equipment of the present application is provided with the rotating roller, so that the fire polishing area of the inner side wall of the tubular piece can be extruded and flattened by the rotating roller after being fire polished, reducing the influence of the unevenness caused by the self micro-flow of the inner side wall softened by high temperature; at the same time, the temperature control mechanism is provided to control the temperature of the rotating roller, so that the rotating roller is kept at a certain temperature, and the inner side wall surface of the tubular piece is rapidly cooled to form a certain temperature difference in the instant of extrusion contact between the rotating roller and the fire polishing area, so as to achieve the effect of surface solidification, and reduce the polishing thickness and polishing difficulty required in the subsequent fire polishing.

[0055] 4. The first annular brush and the second annular brush of the temperature control mechanism are provided, so as to avoid the hindering of the rotating of the rotating roller caused by the setting of the temperature control mechanism, and ensure the rolling friction state between the rotating roller and the inner side wall of the tubular piece, reducing the influence on the inner side wall of the tubular piece.

[0056] 5. The polishing equipment of the present application is provided with the positioning roller, so that the positioning roller extrudes the tubular piece downward after the rotating mechanism, ensuring the position stability of the tubular piece in the processing process, and facilitating the improvement of the acting force between the rotating roller and the tubular piece.

[0057] 6. The polishing equipment of the present application is provided with the fourth moving mechanism to the sixth moving mechanism, so as to adjust the distance between the rotating roller and the positioning roller, facilitate the feeding and discharging of the tubular piece, and facilitate the control of the pressure between the rotating roller and the tubular piece. BRIEF DESCRIPTION OF DRAWINGS

[0058] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0059] Figure 1 This is a front-view perspective three-dimensional structural diagram of the automatic fire polishing equipment for the inner and outer walls of tubular components according to an embodiment of the present invention;

[0060] Figure 2 This is a rear-view perspective three-dimensional structural diagram of the automatic fire polishing equipment for the inner and outer walls of tubular components according to an embodiment of the present invention;

[0061] Figure 3 This is a three-dimensional structural diagram of the rotating mechanism in the automatic fire polishing equipment for the inner and outer walls of tubular parts according to an embodiment of the present invention;

[0062] Figure 4 This is a three-dimensional structural diagram of the spray gun device and the moving mechanism in the automatic fire polishing equipment for the inner and outer walls of tubular parts according to an embodiment of the present invention;

[0063] Figure 5 yes Figure 4 A magnified schematic diagram of the local structure at point A;

[0064] Figure 6 yes Figure 4 A magnified schematic diagram of the local structure at point B;

[0065] Figure 7 yes Figure 4 A magnified schematic diagram of the local structure at point C;

[0066] Figure 8 This is a partial structural diagram of the automatic fire polishing equipment for the inner and outer walls of tubular parts according to an embodiment of the present invention, showing the rotating roller and the positioning roller aligning with the tubular part.

[0067] Figure 9 This is a three-dimensional structural diagram of the temperature control mechanism in the automatic fire polishing equipment for the inner and outer walls of tubular components according to an embodiment of the present invention.

[0068] The annotations in the attached figures are explained as follows:

[0069] 1. Frame; 101. First guide rail; 102. Second guide rail;

[0070] 2. Internal polishing spray gun assembly; 201. Internal polishing spray gun head; 202. Inner tube of internal polishing spray gun; 203. Outer tube of internal polishing spray gun; 204. Internal polishing fixing block; 205. Internal polishing fixing base;

[0071] 3. External polishing spray gun device; 301. External polishing spray gun head; 302. External polishing spray gun tube; 303. External polishing spray gun pressing block; 304. External polishing spray gun base;

[0072] 4. Connecting piece;

[0073] 5. Rotating mechanism; 501. Mounting frame; 502. Bottom plate; 503. Rotating servo motor; 504. Linkage assembly; 505. Limiting assembly; 506. Transmission shaft; 507. Graphite roller;

[0074] 6. First moving mechanism;

[0075] 7. Gas supply device;

[0076] 8. Second moving mechanism;

[0077] 9. Third moving mechanism;

[0078] 10. Connecting seat;

[0079] 11. Support seat;

[0080] 12. Angle adjusting assembly; 1201. Worm gear box; 1202. Angle adjusting hand wheel;

[0081] 13. Preheating spray gun device;

[0082] 14. Feeding and discharging device;

[0083] 15. Transfer table;

[0084] 16. First fixed seat;

[0085] 17. First supporting roller;

[0086] 18. Rotating roller;

[0087] 19. Temperature control mechanism; 1901. Electric heating wire; 1902. First annular brush; 1903. Second annular brush; 1904. First wiring piece; 1905. Second wiring piece;

[0088] 20. Second fixed seat;

[0089] 21. Second supporting roller;

[0090] 22. Positioning roller;

[0091] 23. Fourth moving mechanism;

[0092] 24. Fifth moving mechanism;

[0093] 25. Sixth moving mechanism. DETAILED DESCRIPTION

[0094] Hereinafter, example embodiments according to the present application will be described in detail with reference to the accompanying drawings. It should be apparent that the described embodiments are merely a part of the embodiments of the present application, and do not limit the present application, and that the present application can be implemented in various ways. The embodiments will be preferably described in a general-to-specific order, and the embodiments of the present application can be implemented in other specific ways without departing from the spirit or essential characteristics of the present application. Therefore, the scope of the present application should be construed on the basis of the accompanying claims rather than on the embodiments described herein.

[0095] It should be noted that, as used in this application and the appended claims, the articles "a," "an," "the," and / or "said" are used in the singular sense unless otherwise indicated by context. Generally, the terms "comprising," "including," and the like, when used in the specification, specify the presence of stated features, elements, and / or components, but do not preclude the presence or addition of one or more other features, elements, and / or components.

[0096] If the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are used only to explain the relative positional relationship, movement, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0097] In the present application, unless otherwise explicitly specified and limited, the terms "connection," "fixed," and the like should be understood in a broad sense, for example, "fixed" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be internal connection of two elements, or interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0098] In addition, if the embodiments of the present application involve descriptions of "first," "second," etc., the descriptions of "first," "second," etc. are only for descriptive purposes, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first," "second" can explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel solutions, for example, "A and / or B" includes A solution, or B solution, or A and B solutions. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the scope of protection claimed by the present application.

[0099] The application will be described in detail below by the following embodiments.

[0100] In the embodiment, as shown in the drawings, the automatic fire polishing equipment for inner and outer wall of tubular piece comprises a rack 1. Figures 1 to 6

[0101] The inner polishing spray gun device 2 is movably arranged on the rack 1 and is used for fire polishing the inner side of the tubular piece.

[0102] The outer polishing spray gun device 3 is movably arranged on the rack 1 and is used for fire polishing the outer side of the tubular piece.

[0103] The connecting piece 4 is connected with the inner polishing spray gun device 2 and the outer polishing spray gun device 3 respectively and is used for synchronously moving the inner polishing spray gun device 2 and the outer polishing spray gun device 3.

[0104] The rotating mechanism 5 is arranged corresponding to the inner polishing spray gun device 2 and is used for carrying and rotating the tubular piece.

[0105] The first moving mechanism 6 is arranged on the rack 1 and is connected with the inner polishing spray gun device 2 or the outer polishing spray gun device 3 and is used for driving the inner polishing spray gun device 2 and the outer polishing spray gun device 3 to approach or move away from the rotating mechanism 5.

[0106] The gas supply device 7 is communicated with the inner polishing spray gun device 2 and the outer polishing spray gun device 3 and is used for respectively conveying the gas required for combustion to the inner polishing spray gun device 2 and the outer polishing spray gun device 3.

[0107] In the technical solution, the rack 1 is horizontally arranged in left-right direction, the rotating mechanism 5 is arranged in the middle of the front-back direction of the left part of the rack 1, the first moving mechanism 6 is arranged on the rack 1 in left-right direction and is arranged at the right side of the rotating mechanism 5, the inner polishing spray gun device 2 is fixedly arranged on the first moving mechanism 6, the outer polishing spray gun device 3 is slidably arranged on the first guide rail 101 in front of the rotating mechanism 5 in left-right direction. The connecting piece 4 is a connecting rod, the right end of the connecting piece 4 is connected with the inner polishing spray gun device 2 through a floating joint, the left end of the connecting piece 4 is fixedly connected with the outer polishing spray gun device 3, so that the outer polishing spray gun device 3 can move following when the first moving mechanism 6 drives the inner polishing spray gun device 2 to move left and right, the floating joint is arranged to reduce the installation precision requirement. The gas supply device 7 is communicated with the inner polishing spray gun device 2 and the outer polishing spray gun device 3 through pipes respectively, so as to supply the ignition gas and the combustion gas to the inner polishing spray gun device 2 and the outer polishing spray gun device 3 respectively.

[0108] As shown in the drawings, Figures 4 to 6 ​As shown, the inner polishing spray gun device 2 comprises: an inner polishing spray gun head 201, an inner polishing spray gun inner tube 202, an inner polishing spray gun outer tube 203, an inner polishing fixed pressing block 204, and an inner polishing fixed base 205. The inner polishing fixed base 205 is arranged on the first moving mechanism 6 through the second moving mechanism 8 and the third moving mechanism 9, the inner polishing fixed pressing block 204 is fixed on the inner polishing fixed base 205, the inner polishing spray gun outer tube 203 is fixed between the inner polishing fixed pressing block 204 and the inner polishing fixed base 205, the inner polishing spray gun inner coaxial tube is sleeved in the middle of the inner polishing spray gun outer tube 203, one end of the inner polishing spray gun inner tube 202 extends to the inner polishing fixed base 205 and communicates with the gas supply device 7 through a hose, the other end of the inner polishing spray gun inner tube 202 is fixed with the inner polishing spray gun head 201, the inner polishing spray gun inner tube 202 is provided with two pipelines for conveying hydrogen and oxygen respectively, the inner polishing spray gun head 201 is provided with a pipe part communicating with the two pipelines respectively, and the inner polishing spray gun head 201 is provided with three spray heads with mixing chambers. The hydrogen and oxygen sprayed by the ignition inner polishing spray gun head 201 are used to perform fire polishing on the inner side wall of the tubular part.

[0109] As shown in Figure 1 and Figure 6 , the outer polishing spray gun device 3 comprises: an outer polishing spray gun head 301, an outer polishing spray gun tube 302, an outer polishing spray gun pressing block 303, and an outer polishing spray gun base 304. The outer polishing spray gun base 304 is arranged on the rack 1 and can slide in the left-right direction through the angle adjusting assembly 12, the support seat 11 and the connecting seat 10, the outer polishing spray gun pressing block 303 is fixed on the outer polishing spray gun base 304, the outer polishing spray gun tube 302 is fixed between the outer polishing spray gun base 304 and the outer polishing spray gun pressing block 303, the right side end of the outer polishing spray gun tube 302 communicates with the gas supply device 7 through a hose, the outer polishing spray gun head 301 is fixed on the left side end of the outer polishing spray gun tube 302, the structure of the outer polishing spray gun tube 302 is similar to that of the inner polishing spray gun inner tube 202, and the structure of the outer polishing spray gun head 301 is similar to that of the inner polishing spray gun head 201.

[0110] As shown in Figure 3As shown, the rotating mechanism 5 comprises a mounting frame 501, a bottom plate 502, a rotating servo motor 503, a linkage assembly 504, a limiting assembly 505, two transmission shafts 506 and a plurality of graphite rollers 507. The bottom plate 502 is fixed on the upper side of the mounting frame 501, a fireproof layer is arranged between the lower side of the bottom plate 502 and the mounting frame 501, and a plurality of through holes for avoiding the graphite rollers 507 are arranged on the bottom plate 502. The rotating servo motor 503 is fixed on the lower side of the bottom plate 502, the two transmission shafts 506 are symmetrically arranged on the lower side of the bottom plate 502 in the front-rear direction, the plurality of graphite rollers 507 are symmetrically arranged on the two transmission shafts 506, the linkage assembly 504 is arranged between the rotating servo motor 503 and the transmission shaft 506, and the limiting assembly 505 is slidably arranged on the upper side of the bottom plate 502 in the left-right direction. In use, the tubular member is placed between the plurality of graphite rollers 507 on the two sides, and the rotating servo motor 503 is turned on to drive the tubular member to rotate clockwise in the direction of the right side view.

[0111] The gas supply device 7 can respectively deliver various gases to each spray gun device through separate gas paths, and each gas path for delivering gas to each spray gun device is provided with a separate pilot gas flow adjusting valve, a hydrogen gas flow adjusting valve and an oxygen gas flow adjusting valve, so that the flow of various gases delivered to each spray gun device can be adjusted individually, thereby facilitating the control of the flame size of each spray gun device. At the same time, the gas supply device 7 is provided with a pressure gauge to detect the pressure of the hydrogen gas path and the oxygen gas path in real time, thereby keeping the flame stable.

[0112] In some technical solutions, the frame 1 is provided with casters to facilitate the adjustment of the position of the polishing equipment. The frame 1 is provided with a limiting switch to limit the movement distance of the first moving mechanism 6. The linkage assembly 504 is a sprocket and chain assembly. The limiting assembly 505 is provided with a slidable limiting base and a limiting roller, and the limiting roller is freely rotatable about a vertical rotation axis arranged on the limiting base to limit the left end of the tubular member on the rotating mechanism 5.

[0113] In another technical solution, the polishing device is also provided with an electric control device to control the rotating speed of the rotating mechanism 5 and the moving speed of the first moving mechanism 6, so as to control the time length of the side wall of the tubular member passing through the flame zone.

[0114] In the embodiment, as shown in Figure 1 , Figure 2 and Figure 5 , the polishing device further comprises:

[0115] a second moving mechanism 8 arranged on the first moving mechanism 6, the first moving mechanism 6 being used to drive the second moving mechanism 8 to move in the first direction;

[0116] a third moving mechanism 9 arranged on the second moving mechanism 8, the second moving mechanism 8 being used to drive the third moving mechanism 9 to move in the second direction;

[0117] The inner polishing spray gun device 2 is arranged on the third moving mechanism 9, and the third moving mechanism 9 is used to drive the inner polishing spray gun device 2 to move along the third direction;

[0118] The first direction, the second direction and the third direction are arranged perpendicular to each other.

[0119] In the technical solution, the first moving mechanism 6 is a motor-driven screw rod and sliding block mechanism, the second moving mechanism 8 and the third moving mechanism 9 are both motor-driven gear and rack mechanisms, the second moving mechanism 8 is vertically arranged on the sliding block of the first moving mechanism 6, the third moving mechanism 9 is horizontally arranged in the front and back direction on the sliding structure of the second moving mechanism 8, and the inner polishing fixed base 205 is fixed on the sliding structure of the third moving mechanism 9. With the driving of the first moving mechanism 6, the second moving mechanism 8, the third moving mechanism 9 and the inner polishing spray gun device 2 can be driven to move left and right; with the driving of the second moving mechanism 8, the position of the third moving mechanism 9 and the inner polishing spray gun device 2 in the up and down direction can be adjusted; with the driving of the third moving mechanism 9, the position of the inner polishing spray gun device 2 in the front and back direction can be adjusted. In order to realize the position adjustment and distance adjustment of the inner side wall of the corresponding tubular part of the inner polishing spray gun device 2.

[0120] In the embodiment, as shown in Figure 1 、 Figure 4 and Figure 6 , it further comprises:

[0121] The connecting seat 10 is arranged on the rack 1 and is movable along the first direction;

[0122] The supporting seat 11 is arranged on the connecting seat 10 and is movable along the third direction;

[0123] The angle adjusting assembly 12 is slidably arranged on the supporting seat 11, and the outer polishing spray gun device 3 is arranged on the angle adjusting assembly 12, and the angle adjusting assembly 12 is used to adjust the orientation of the outer polishing spray gun device 3.

[0124] In the technical solution, the front side of the rack 1 is provided with the first guide rail 101 arranged horizontally in the left and right direction, the connecting seat 10 is a hand-operated sliding table arranged horizontally in the front and back direction, the connecting seat 10 is slidably arranged on the first guide rail 101 on the front side of the rack 1 in the left and right direction, the right side of the connecting seat 10 is fixedly connected with the sliding block of the first moving mechanism 6 or the fixed structure of the second moving mechanism 8 through the connecting piece 4, and the connecting seat 10 can be synchronously driven to slide left and right with the driving of the first moving mechanism 6.

[0125] The supporting seat 11 is two supporting rods vertically arranged on the sliding table of the connecting seat 10. With the manual shaking of the connecting seat 10, the sliding table can be horizontally moved in the front and back direction, and the supporting seat 11 can be moved forward and backward.

[0126] The angle adjusting assembly 12 is slidably and fixedly arranged on the two fixed rods in the up-down direction, and the angle adjusting assembly 12 comprises: a worm gear box 1201 and an angle adjusting hand wheel 1202, the worm gear box 1201 is slidably and fixedly arranged on the support base 11 in the up-down direction, and the angle adjusting hand wheel 1202 is coaxially fixed with the worm, the outer spray gun fixed base is coaxially fixed with the gear, and the pitch angle of the outer polishing spray gun device 3 can be adjusted by rotating the angle adjusting hand wheel 1202.

[0127] In the embodiment, further comprising:

[0128] The preheating spray gun device 13 is arranged on the side of the inner polishing spray gun device 2 away from the outer polishing spray gun device 3, and is used for preheating the tubular member.

[0129] The preheating spray gun device 13 is fixedly connected with the inner polishing spray gun device 2 or the outer polishing spray gun device 3, the preheating spray gun device 13 is communicated with the gas supply device 7, and the gas supply device 7 is used for conveying gas required for combustion to the preheating spray gun device 13.

[0130] In the technical solution, the rear side of the rack 1 is provided with a second guide rail 102 for sliding the preheating spray gun device 13 left and right, and the same connecting rod as the connecting piece 4 is arranged between the preheating spray gun device 13 and the sliding block of the first moving mechanism 6, so that the preheating spray gun device 13 can move left and right synchronously with the inner polishing spray gun device 2 and the outer polishing spray gun device 3. The preheating spray gun device 13 has the same structure as the outer polishing spray gun device 3 and is symmetrically arranged front and back.

[0131] In some technical solutions, the preheating spray gun device 13 and the second guide rail 102 on the rear side are provided with the same connecting structure as the connecting seat 10, the support base 11 and the angle adjusting assembly 12, so that the height, the front and back position and the pitch angle of the preheating spray gun device 13 can be adjusted.

[0132] In the embodiment, further comprising:

[0133] The feeding and discharging device 14 is arranged corresponding to the rotating mechanism 5.

[0134] The transfer table 15 is arranged corresponding to the feeding and discharging device 14 and is used for carrying the tubular member, and the feeding and discharging device 14 is used for driving the tubular member to move between the transfer table 15 and the rotating mechanism 5.

[0135] In the technical solution, the transfer table 15 is horizontally arranged in the front and back direction on the rear side of the rotating mechanism 5, the tubular member which needs to be heat polished or which is completed heat polishing can be placed on the transfer table 15, and the feeding and discharging is facilitated. The feeding and discharging device 14 is a mechanical arm which can clamp and take the tubular member and drive the tubular member to move, and the feeding and discharging device 14 can be purchased on the market. In this way, the automation degree of the polishing equipment is improved.

[0136] AsFigure 1 、 Figure 2 、 Figure 4 、 Figures 7 to 9 As shown in FIGS. 1-3, in the embodiment, the inner polishing spray gun device 2 further comprises:

[0137] a first fixed seat 16;

[0138] a first supporting roller 17 fixedly arranged on the first fixed seat 16;

[0139] a rotating roller 18 rotatably arranged on the first supporting roller 17, the rotating roller 18 being configured to extend into the tubular member and to extrude the inner sidewall of the tubular member;

[0140] a temperature control mechanism 19 connected with the rotating roller 18 and configured to control the temperature of the rotating roller 18.

[0141] In the technical solution, the first fixed seat 16 is arranged on the upper side of the inner polishing spray gun device 2 through the fourth moving mechanism 23 and the sixth moving mechanism, the first supporting roller 17 is fixedly arranged on the first fixed seat 16, the left end of the first supporting roller 17 extends to the left side, the rotating roller 18 is a straight cylinder and coaxially rotatably arranged outside the first supporting roller 17, the outer side surface of the rotating roller 18 is tangentially arranged with the entire inner side surface of the tubular member in the axial direction, so that the pressure of the rotating roller 18 on each point of the inner sidewall of the tubular member is equal. The temperature control mechanism 19 is connected with the rotating roller 18, and the temperature of the rotating roller 18 is controlled through the temperature control mechanism 19, so that the inner sidewall of the tubular member after flame polishing can achieve the effect of short-term quenching when contacting the rotating roller 18, and the solidification speed of the inner sidewall surface is improved. At the same time, under the extrusion of the rotating roller 18, the inner sidewall softened by flame polishing can be flattened as a whole, and the difficulty of subsequent processing after flame polishing is reduced.

[0142] The length of the rotating roller 18 is greater than or equal to the depth of the tubular member, so that the outer sidewall of the rotating roller 18 can be tangentially arranged with the entire inner side surface of the tubular member, and the position of the rotating roller 18 does not need to be moved during the entire flame polishing process, thereby ensuring the quality of the overall processing.

[0143] In some technical solutions, the rotating roller 18 and the first supporting roller 17 are arranged close to the flame area of the inner polishing spray gun device 2, so as to reduce the angle and time length of the movement of the area after flame polishing to the rotating roller 18.

[0144] In other technical solutions, the first supporting roller 17, the rotating roller 18 and the temperature control mechanism 19 are all arranged as at least two.

[0145] In the embodiment, as shown in FIGS. 1-3, the temperature control mechanism 19 comprises: Figure 7 and Figure 9 As shown in FIGS. 1-3, in the embodiment, the inner polishing spray gun device 2 further comprises:

[0146] an electric heating wire 1901 arranged in the rotating roller 18 and extending to the outside of the rotating roller 18 at both ends;

[0147] The first annular brush 1902 is coaxially fixed on the rotating roller 18 and is electrically connected with one end of the electric heating wire 1901.

[0148] The second annular brush 1903 is fixed on the rotating roller 18 and is electrically connected with the other end of the electric heating wire 1901.

[0149] The first connecting wire 1904 and the second connecting wire 1905 are fixed on the first fixed seat 16 and are electrically connected with the first annular brush 1902 and the second annular brush 1903 respectively.

[0150] In the technical solution, the electric heating wire 1901 is in the shape of arch or city wall and is uniformly embedded in the rotating roller 18 and is insulated from the rotating roller 18. The two ends of the electric heating wire 1901 extend to the right side of the rotating roller 18. The first annular brush 1902 and the second annular brush 1903 are coaxially and fixedly arranged on the right side of the rotating roller 18. The first connecting wire 1904 and the second connecting wire 1905 are fixed on the first fixed seat 16. The first connecting wire 1904 and the second connecting wire 1905 are slidably connected with the first annular brush 1902 and the second annular brush 1903 respectively. In use, the power supply is connected with the first connecting wire 1904 and the second connecting wire 1905. The power is transmitted through the sliding connection between the first connecting wire 1904 and the first annular brush 1902 and the sliding connection between the second connecting wire 1905 and the second annular brush 1903. The relative rolling between the rotating roller 18 and the tubular member is realized to avoid or reduce the sliding friction between the rotating roller 18 and the tubular member.

[0151] In the embodiment, as shown in FIG. 1, the device further comprises: Figure 8

[0152] The second fixed seat 20 is arranged on the lower side of the first fixed seat 16.

[0153] The second supporting roller 21 is fixed on the second fixed seat 20.

[0154] The positioning roller 22 is rotatably arranged on the second supporting roller 21. The positioning roller 22 is used to extend to the inner side of the tubular member and to press the inner wall of the tubular member.

[0155] ​In the technical solution, the second fixing base 20 is arranged at the lower side of the inner polishing spray gun device 2 through the fifth moving mechanism 24 and the sixth moving mechanism, the second supporting roller 21 is fixedly arranged on the second fixing base 20, the left side end of the second supporting roller 21 extends to the left side, the positioning roller 22 is a straight cylinder and is coaxially rotatably arranged outside the second supporting roller 21, the outer side surface of the positioning roller 22 is tangentially arranged with the whole inner side surface of the tubular piece in the axial direction, so that the positioning roller 22 has equal pressure on each point of the inner side wall of the tubular piece. The tubular piece is fixed on the rotating mechanism 5 through the positioning roller 22, so as to facilitate increasing the extrusion force of the rotating roller 18 on the tubular piece in a certain range.

[0156] In some technical solutions, the second fixing base 20 and the positioning roller 22 are also provided with the temperature control mechanism 19, so as to control the surface temperature of the positioning roller 22.

[0157] In the embodiment, the following are further included:

[0158] The fourth moving mechanism 23 is used for driving the first fixing base 16 to move up and down.

[0159] The fifth moving mechanism 24 is used for driving the second fixing base 20 to move up and down.

[0160] The sixth moving mechanism 25 is used for driving the fourth moving mechanism 23 and the fifth moving mechanism 24 to move close to or away from the rotating mechanism 5.

[0161] In the technical solution, the fourth moving mechanism 23, the fifth moving mechanism 24 and the sixth moving mechanism 25 are all motor-driven screw sliding block moving mechanisms, the fourth moving mechanism 23 and the fifth moving mechanism 24 are vertically arranged on the sliding block of the sixth moving mechanism 25, and the sixth moving mechanism 25 is horizontally arranged at the rear side of the rotating mechanism 5. The fourth moving mechanism 23, the fifth moving mechanism 24, the rotating roller 18 and the positioning roller 22 can be driven to move left and right by the sixth moving mechanism 25, the height position of the first fixing base 16 and the structures thereon can be adjusted by the fourth moving mechanism 23, and the height position of the second fixing base 20 and the structures thereon can be adjusted by the fifth moving mechanism 24.

[0162] The embodiment of the application further provides a tubular piece inner and outer wall automatic fire polishing method applied to the tubular piece inner and outer wall automatic fire polishing device.

[0163] In the embodiment, the tubular piece inner and outer wall automatic fire polishing method comprises the following steps:

[0164] S1, placing the tubular on the rotating mechanism 5;

[0165] S2, adjusting the positions of the first fixing seat 16 and the second fixing seat 20, so that the rotating roller 18 and the positioning roller 22 extend to the distal end of the tubular, and the rotating roller 18 and the positioning roller 22 are in contact with the inner side wall of the tubular, and the rotating roller 18 is above and the positioning roller 22 is below;

[0166] S3, adjusting the positions of the outer polishing spray gun device 3 and the inner polishing spray gun device 2 to the tubular, starting the gas supply device 7, igniting the outer polishing spray gun device 3 and the inner polishing spray gun device 2, heating the temperature of the outer side wall of the tubular to (P-100) to (P+300) by the outer polishing spray gun device 3, heating the temperature of the inner side wall of the tubular to (P+200) to (P+600) by the inner polishing spray gun device 2, starting the temperature control mechanism 19 to adjust the surface temperature of the rotating roller 18 to 600-1000℃, P is the temperature of the softening point of the tubular, and P is greater than 1000℃;

[0167] S4, starting the rotating mechanism 5 to drive the tubular to rotate, and the inner side wall of the tubular is in contact with the rotating roller 18 after the area corresponding to the inner polishing spray gun device 2 is subjected to fire polishing by the inner polishing spray gun device 2;

[0168] S5, after the inner and outer side walls of the tubular are completed by fire polishing, the outer polishing spray gun device 3, the rotating roller 18 and the positioning roller 22 are withdrawn, and finally the tubular is removed from the rotating mechanism 5.

[0169] In the technical solution, the tubular is a quartz tube, and the quartz tube does not have a fixed softening point, and the softening point temperature is generally in the range of 1400-1800℃.

[0170] In some embodiments, the temperature of the outer side wall of the tubular is heated to 1300-1700℃ by the outer polishing spray gun device 3, and the temperature of the inner side wall of the tubular is heated to 1600-2000℃ by the inner polishing spray gun device 2.

[0171] The above has described various embodiments of the present disclosure, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments. The selection of the terms used herein is intended to best explain the principles, practical applications, or improvements to the technology in the market of the embodiments, or to enable other ordinary skilled persons in the art to understand the embodiments disclosed herein.

Claims

1. An automatic fire polishing device for the inner and outer walls of tubular components, characterized in that, include: Rack (1); An internal polishing spray gun device (2) is movably mounted on the frame (1) for fire polishing the inner surface of the tubular component; An external polishing spray gun device (3) is movably mounted on the frame (1) and is used to perform fire polishing on the outer surface of the tubular component; The connector (4) is connected to the inner polishing spray gun device (2) and the outer polishing spray gun device (3) respectively, and is used to make the inner polishing spray gun device (2) and the outer polishing spray gun device (3) move synchronously; The rotating mechanism (5) is provided in accordance with the internal polishing spray gun device (2) and is used to support the tubular component and drive the tubular component to rotate. The first moving mechanism (6) is set on the frame (1) and connected to the inner polishing spray gun device (2) or the outer polishing spray gun device (3) for driving the inner polishing spray gun device (2) and the outer polishing spray gun device (3) to move closer to or away from the rotating mechanism (5). A gas supply device (7) is connected to the inner polishing spray gun device (2) and the outer polishing spray gun device (3) and is used to supply the gas required for combustion to the inner polishing spray gun device (2) and the outer polishing spray gun device (3) respectively. Also includes: The second moving mechanism (8) is disposed on the first moving mechanism (6), and the first moving mechanism (6) is used to drive the second moving mechanism (8) to move along the first direction; The third moving mechanism (9) is disposed on the second moving mechanism (8), and the second moving mechanism (8) is used to drive the third moving mechanism (9) to move along the second direction; The internal polishing spray gun device (2) is disposed on the third moving mechanism (9), and the third moving mechanism (9) is used to drive the internal polishing spray gun device (2) to move along a third direction; The first direction, the second direction, and the third direction are arranged perpendicularly to each other; Also includes: A connecting seat (10) is movably disposed on the frame (1) along the first direction; A support base (11) is movably disposed on the connecting base (10) along the third direction; An angle adjustment component (12) is slidably disposed on the support base (11) along the second direction. The external polishing spray gun device (3) is disposed on the angle adjustment component (12). The angle adjustment component (12) is used to adjust the orientation of the external polishing spray gun device (3). Also includes: First fixed seat (16); The first support roller (17) is fixedly disposed on the first fixed seat (16); A rotating roller (18) is rotatably disposed on the first support roller (17). The rotating roller (18) is used to extend to the inside of the tubular part and to squeeze the inner wall of the tubular part. A temperature control mechanism (19) is connected to the rotating roller (18) and is used to regulate the temperature of the rotating roller (18); The temperature control mechanism (19) includes: The heating wire (1901) is disposed inside the rotating roller (18) and both ends extend to the outside of the rotating roller (18); The first annular brush (1902) is coaxially fixedly mounted on the rotating roller (18) and electrically connected to one end of the heating wire (1901); The second annular brush (1903) is fixedly mounted on the rotating roller (18) and electrically connected to the other end of the heating wire (1901); The first connector (1904) and the second connector (1905) are both fixedly mounted on the first mounting base (16) and electrically connected to the first annular brush (1902) and the second annular brush (1903) respectively.

2. The automatic fire polishing equipment for the inner and outer walls of tubular components according to claim 1, characterized in that, Also includes: A preheating spray gun device (13) is located on the side of the inner polishing spray gun device (2) away from the outer polishing spray gun device (3) and is used for preheating the tubular component; The preheating spray gun device (13) is fixedly connected to the inner polishing spray gun device (2) or the outer polishing spray gun device (3). The preheating spray gun device (13) is connected to the gas supply device (7). The gas supply device (7) is used to supply the gas required for combustion to the preheating spray gun device (13).

3. The automatic fire polishing equipment for the inner and outer walls of tubular components according to claim 1, characterized in that, Also includes: The loading and unloading device (14) is provided corresponding to the rotating mechanism (5); The transfer platform (15) is provided corresponding to the loading and unloading device (14) and is used to carry the tubular parts. The loading and unloading device (14) is used to drive the tubular parts to move between the transfer platform (15) and the rotating mechanism (5).

4. The automatic fire polishing equipment for the inner and outer walls of tubular components according to claim 1, characterized in that, Also includes: The second fixing seat (20) is disposed on the lower side of the first fixing seat (16); The second support roller (21) is fixedly disposed on the second fixed seat (20); A positioning roller (22) is rotatably disposed on the second support roller (21), the positioning roller (22) being used to extend to the inside of the tubular member and to compress the inner wall of the tubular member.

5. The automatic fire polishing equipment for the inner and outer walls of tubular components according to claim 4, characterized in that, Also includes: The fourth moving mechanism (23) is provided with the first fixed seat (16) disposed on the fourth moving mechanism (23), and the fourth moving mechanism (23) is used to drive the first fixed seat (16) to move up and down; The fifth moving mechanism (24) is provided with the second fixed base (20) disposed on the fifth moving mechanism (24), and the fifth moving mechanism (24) is used to drive the second fixed base (20) to move up and down; The sixth moving mechanism (25) is provided on the fourth moving mechanism (23) and the fifth moving mechanism (24). The sixth moving mechanism (25) is used to drive the fourth moving mechanism (23) and the fifth moving mechanism (24) to move closer to or away from the rotating mechanism (5).

6. An automatic fire polishing method for the inner and outer walls of a tubular component, used in the automatic fire polishing equipment for the inner and outer walls of a tubular component as described in claim 5, characterized in that, Includes the following steps: S1. Place the tubular component on the rotating mechanism (5); S2. Adjust the positions of the first fixed seat (16) and the second fixed seat (20) so that the rotating roller (18) and the positioning roller (22) extend to the far end of the tubular part, and both the rotating roller (18) and the positioning roller (22) abut against the inner wall of the tubular part, with the rotating roller (18) on top and the positioning roller (22) on the bottom. S3. Adjust the outer polishing spray gun device (3) and the inner polishing spray gun device (2) to the corresponding positions of the tubular parts, turn on the air supply device (7), ignite the outer polishing spray gun device (3) and the inner polishing spray gun device (2), heat the outer wall temperature of the tubular parts to (P-100) to (P+300) through the outer polishing spray gun device (3), heat the inner wall temperature of the tubular parts to (P+200) to (P+600) through the inner polishing spray gun device (2), turn on the temperature control mechanism (19) to adjust the surface temperature of the rotating roller (18) to 600℃ to 1000℃, where P is the temperature of the softening point of the tubular parts, and P is greater than 1000℃; S4. The rotating mechanism (5) is turned on to drive the tubular part to rotate, and the area of ​​the inner side wall of the tubular part corresponding to the inner polishing spray gun device (2) is polished by the fire of the inner polishing spray gun device (2) before contacting the rotating roller (18). S5. After the inner and outer walls of the tubular part are polished, the outer polishing spray gun device (3), rotating roller (18) and positioning roller (22) are removed, and finally the tubular part is removed from the rotating mechanism (5).

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