Boring machine for converter taper hole machining

Abstract

The utility model relates to a boring machine for converter taper hole machining, which comprises a conical cutter holder, four mounting grooves are coaxially formed in the surface of the conical cutter holder at equal angles, mounting sleeves are arranged in the mounting grooves, cutters are inserted in the mounting sleeves, screw holes are formed in the outer surfaces of the cutters, and the screw holes are matched with the mounting sleeves. Fixing bolts matched with the screw holes are mounted on the outer surface of the mounting sleeve; an adjusting mechanism is arranged in the conical tool apron and can drive the four mounting sleeves to slide in the mounting grooves at the same time. A connecting base is installed at the bottom of the conical tool apron. Through the arrangement of the fixing bolts and the screw holes, the cutter can be fixedly installed in the installation sleeve, the stability is high, the situation of loosening in the cutting process is avoided, the machining precision and the surface quality are guaranteed, the position of the cutter can be adjusted through the arrangement of the adjusting mechanism, and therefore the machining requirements of taper holes of different sizes are met, and the flexibility is high.

Description

Technical Field

[0001] This utility model relates to the field of converter processing technology, specifically a boring machine for processing conical holes in converters. Background Technology

[0002] A converter is a type of smelting furnace, specifically a tiltable cylindrical oxygen-blown steelmaking vessel. The furnace body is cylindrical and mounted on a horizontal shaft, allowing it to rotate during smelting. In the steelmaking process, the converter blows oxygen-containing gas into molten pig iron, using high temperatures to remove impurities and unpurified substances from the raw materials, thus obtaining high-purity steel. This steelmaking method is highly efficient, flexible, and environmentally friendly, and is widely used in the steel industry.

[0003] Chinese patent CN221269746U discloses a boring machine for machining conical holes in a converter. This patent improves the boring machine according to the requirements of the conical holes in the converter support system, so as to realize the machining of conical holes and meet the requirements of the conical connection and fixation of the installation part of the converter support system.

[0004] When the above-mentioned patent is used, the tool is fixed by pressing one side of the tool with a tool fixing bolt. This fixing method is difficult to provide sufficient stability and support, especially under high-speed rotation and heavy-load cutting conditions. The tool is prone to shaking or displacement, which affects the machining accuracy and surface quality. Utility Model Content

[0005] The purpose of this utility model is to provide a boring machine for processing conical holes in converters, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the technical solution of this utility model is as follows.

[0007] A boring machine for machining conical holes in a converter includes a conical tool holder. Four mounting slots are coaxially and at equal angles on the surface of the conical tool holder. Mounting sleeves are installed inside the mounting slots, and cutting tools are inserted inside the mounting sleeves. Screw holes are formed on the outer surface of the cutting tools, and fixing bolts matching the screw holes are installed on the outer surface of the mounting sleeves. An adjustment mechanism is provided inside the conical tool holder, which can simultaneously drive the four mounting sleeves to slide within the mounting slots. A connecting seat is installed at the bottom of the conical tool holder.

[0008] Furthermore, the adjustment mechanism includes an inner cavity formed inside the conical tool holder. A screw is rotatably mounted on the inner wall of the inner cavity via a first bearing at equal angles along the same axis, and the end of the screw extends through to the inner side of the mounting sleeve and is threaded thereto. A first bevel gear is mounted on the end of the screw located inside the inner cavity, and a rotating shaft is rotatably mounted inside the inner cavity via a second bearing. A second bevel gear is mounted on the end of the rotating shaft located inside the inner cavity, and the second bevel gear meshes with four first bevel gears simultaneously.

[0009] Furthermore, a worm gear is mounted on the top of the shaft, and a worm is meshed with the outer surface of the worm gear.

[0010] Furthermore, a protective cover is installed on the top of the conical tool holder. The protective cover covers the outside of the worm gear and the worm, and the two ends of the worm are rotatably connected to the inner wall of the protective cover.

[0011] Furthermore, one end of the worm gear extends to the outside of the protective cover and is fitted with a knob. The outer surface of the protective cover has multiple positioning holes at equal angles around the coaxial axis of the worm gear. The knob is fitted with positioning bolts that match the positioning holes.

[0012] Furthermore, a clearance hole is provided on the surface of the cutting tool, and the end of the screw away from the first bevel gear is set in the clearance hole.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows.

[0014] 1. This utility model can fix the tool in the mounting sleeve by setting the fixing bolts and screw holes, which has strong stability and avoids loosening during the cutting process, ensuring machining accuracy and surface quality. In addition, the tool position can be adjusted by setting the adjustment mechanism, thereby meeting the machining requirements of tapered holes of different sizes, and has high flexibility.

[0015] 2. By setting up four cutting tools, this utility model ensures that the entire conical tool holder is subjected to uniform force during the cutting process, resulting in greater stability. Furthermore, the four cutting tools share the cutting force, reducing the wear of individual tools and improving service life and processing efficiency. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a front view cross-sectional structural diagram of the conical tool holder in this utility model;

[0018] Figure 3 for Figure 2 Enlarged diagram of A in the middle;

[0019] Figure 4 This is a cross-sectional structural diagram of the protective cover in this utility model.

[0020] In the diagram: 100, conical tool holder; 101, mounting groove; 102, mounting sleeve; 103, fixing bolt; 104, tool; 105, connecting seat; 200, adjusting mechanism; 201, inner cavity; 202, first bearing; 203, screw; 204, first bevel gear; 205, second bearing; 206, rotating shaft; 207, second bevel gear; 300, worm gear; 301, worm; 400, protective cover; 500, knob; 501, positioning hole; 502, positioning bolt; 600, clearance hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connection" and "installation" should be interpreted broadly. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. Furthermore, "connection" can be a direct connection or an indirect connection through an intermediate medium. "Fixed" means that the relative positional relationship remains unchanged after the connection. The directional terms mentioned in the embodiments of this utility model, such as "inner," "outer," "top," and "bottom," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for better and clearer explanation and understanding of the embodiments of this utility model, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0023] In this embodiment of the invention, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0024] like Figure 1-4As shown, a boring machine for machining conical holes in a converter includes a conical tool holder 100. Four mounting slots 101 are coaxially and at equal angles on the surface of the conical tool holder 100. Mounting sleeves 102 are installed inside the mounting slots 101, and cutting tools 104 are inserted inside the mounting sleeves 102. Screw holes are formed on the outer surface of the cutting tools 104, and fixing bolts 103 matching the screw holes are installed on the outer surface of the mounting sleeves 102. An adjusting mechanism 200 is provided inside the conical tool holder 100, which can simultaneously drive the four mounting sleeves 102 to slide within the mounting slots 101. A connecting seat 105 is installed at the bottom of the conical tool holder 100.

[0025] In use, the connecting seat 105 is connected to the boring bar of the boring machine. The boring bar drives the tapered tool holder 100 to rotate, and the four tools 104 simultaneously cut the inner wall of the inner hole, thus machining the inner hole into a tapered hole. When it is necessary to machine tapered holes of different sizes, the adjusting mechanism 200 is used to simultaneously drive the four mounting sleeves 102 to slide in the mounting groove 101, thereby changing the distance the tools 104 extend outward, thus enabling the machining of tapered holes of different sizes. When the tools 104 are damaged, the fixing bolts 103 can be unscrewed from the screw holes, and then the tools 104 can be pulled out of the mounting sleeves 102 for replacement.

[0026] Preferably, the adjusting mechanism 200 includes an inner cavity 201 formed inside the conical tool holder 100. A screw 203 is rotatably mounted on the inner wall of the inner cavity 201 via a first bearing 202 at equal angles along the same axis. The end of the screw 203 extends through the inner side of the mounting sleeve 102 and is threadedly connected thereto. A first bevel gear 204 is mounted on the end of the screw 203 located inside the inner cavity 201. A rotating shaft 206 is rotatably mounted inside the inner cavity 201 via a second bearing 205. A second bevel gear 207 is mounted on the end of the rotating shaft 206 located inside the inner cavity 201. The second bevel gear 207 simultaneously meshes with four first bevel gears 204.

[0027] When the rotating shaft 206 is rotated, it drives the second bevel gear 207 to rotate. Since the second bevel gear 207 meshes with the four first bevel gears 204 at the same time, it can drive the four screws 203 to rotate simultaneously. Since the screws 203 are threadedly connected to the mounting sleeve 102, and the mounting sleeve 102 is limited by the inner wall of the mounting groove 101, the mounting sleeve 102 can slide inside the mounting groove 101 under the action of the threaded connection, thereby changing the outward extension distance of the tool 104.

[0028] Preferably, a worm gear 300 is mounted on the top of the rotating shaft 206, and a worm 301 is meshed with the outer surface of the worm gear 300.

[0029] The transmission method using the worm gear 300 and worm 301 can save effort and provide higher precision in adjusting the position of the tool 104.

[0030] Preferably, a protective cover 400 is installed on the top of the conical tool holder 100. The protective cover 400 covers the outside of the worm gear 300 and the worm 301, and the two ends of the worm 301 are rotatably connected to the inner wall of the protective cover 400.

[0031] The protective cover 400 can prevent chips from coming into contact with the worm wheel 300 and worm 301 during the cutting process, thus preventing damage or jamming.

[0032] Preferably, one end of the worm 301 extends through to the outside of the protective cover 400 and is fitted with a knob 500. The outer surface of the protective cover 400 is provided with multiple positioning holes 501 at equal angles to the coaxial axis of the worm 301. The knob 500 is fitted with a positioning bolt 502 that matches the positioning holes 501.

[0033] Turning the knob 500 can rotate the worm gear 301, thereby adjusting the position of the tool 104. After the position of the tool 104 is adjusted, the positioning bolt 502 is screwed into the positioning hole 501 corresponding to its current position, thereby locking the worm gear 301 and preventing the mounting sleeve 102 from shifting during the cutting process, thus ensuring the machining quality.

[0034] Preferably, the surface of the cutting tool 104 is provided with a relief hole 600, and the end of the screw 203 away from the first bevel gear 204 is disposed in the relief hole 600.

[0035] The inner wall of the clearance hole 600 does not contact the screw 203, providing installation space for the screw 203 so that the mounting sleeve 102 can move along the length of the screw 203.

[0036] The above is a detailed description of the present invention in conjunction with specific embodiments, and it should not be construed that the specific implementation of the present invention is limited to these descriptions. For those skilled in the art, any equivalent substitutions or obvious modifications made without departing from the concept of the present invention, and which have the same performance or use, should be considered as falling within the patent protection scope defined by the submitted claims.

Claims

1. A boring machine for processing converter taper hole, comprising a taper tool holder (100), characterized in that: the surface of the taper tool holder (100) is coaxially and equally angularly provided with four installation grooves (101), the inside of the installation groove (101) is provided with an installation sleeve (102), the inside of the installation sleeve (102) is inserted with a tool (104), the outer surface of the tool (104) is provided with a screw hole, and the outer surface of the installation sleeve (102) is provided with a fixing bolt (103) matched with the screw hole; the inside of the taper tool holder (100) is provided with an adjusting mechanism (200), which can simultaneously drive four installation sleeves (102) to slide in the installation groove (101); the bottom of the taper tool holder (100) is provided with a connecting seat (105).

2. The boring machine for processing converter taper hole according to claim 1, characterized in that: the adjusting mechanism (200) comprises an inner cavity (201) provided in the inside of the taper tool holder (100), the inner wall of the inner cavity (201) is coaxially and equally angularly provided with a screw rod (203) rotatably installed through a first bearing (202), and the end of the screw rod (203) penetrates to the inside of the installation sleeve (102) and is threadedly connected therewith; the end of the screw rod (203) located in the inner cavity (201) is provided with a first bevel gear (204), the inside of the inner cavity (201) is rotatably provided with a rotating shaft (206) through a second bearing (205), the end of the rotating shaft (206) located in the inner cavity (201) is provided with a second bevel gear (207), and the second bevel gear (207) is simultaneously meshingly connected with four first bevel gears (204).

3. The boring machine for processing converter taper hole according to claim 2, characterized in that: the top of the rotating shaft (206) is provided with a worm wheel (300), and the outer surface of the worm wheel (300) is meshingly connected with a worm (301).

4. The boring machine for processing converter taper hole according to claim 3, characterized in that: the top of the taper tool holder (100) is provided with a protective cover (400), the protective cover (400) covers the outside of the worm wheel (300) and the worm (301), and the both ends of the worm (301) are rotatably connected with the inner wall of the protective cover (400).

5. The boring machine for processing converter taper hole according to claim 4, characterized in that: one end of the worm (301) penetrates to the outside of the protective cover (400) and is provided with a knob (500), a plurality of positioning holes (501) are coaxially and equally angularly provided on the outer surface of the protective cover (400) around the worm (301), and the inside of the knob (500) is provided with a positioning bolt (502) matched with the positioning hole (501).

6. The boring machine for processing converter taper hole according to claim 2, characterized in that: The surface of the cutter (104) is provided with a clearance hole (600), and one end of the screw rod (203) away from the first bevel gear (204) is arranged in the clearance hole (600).

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