Electric conical surface thread machining tool

Abstract

The invention provides a conical surface thread electric machining tool which comprises a base, a power assembly, a transmission assembly, a cutter assembly, a sliding assembly, a feeding assembly and a clamping assembly, the power assembly is arranged at one end of the base, the transmission assembly is arranged in front of the power assembly, the cutter assembly is arranged on the transmission assembly, and the sliding assembly is arranged on the base. The sliding assembly and the feeding assembly are adjacently arranged on the base and are coaxial with the cutter assembly, the clamping assembly is arranged on the sliding assembly, and the feeding assembly drives the sliding assembly to axially move and enables the clamping assembly to axially get close to or get away from the cutter assembly. Conical surface machining and thread machining are integrated, machining procedures and equipment investment are reduced, and machining efficiency and flexibility are improved. Operators only need to adjust parameters on the same equipment, different types of machining tasks can be completed, and the machining period is greatly shortened.

Description

Technical Field

[0001] The present invention relates to the field of steel pipe end face processing, and particularly to an electric processing tool for tapered threads. Background Art

[0002] In the field of pipeline connection and assembly, thick-walled high-pressure stainless steel pipes are widely used in industries such as petroleum, chemical engineering, and electric power. Conical surfaces and threads are usually machined at the ends of thick-walled high-pressure stainless steel pipes. Traditional processing methods have many deficiencies: manual tools are extremely laborious to operate, with extremely low work efficiency. Moreover, when processing high-pressure pipes with thick diameters and large wall thicknesses, manual tools are even more incompetent, and the processing quality is difficult to guarantee. Electric tools have single functions and cannot integrate conical surface and thread processing. Multiple tools are required and the processing is completed step by step, which not only increases the processing cost but also prolongs the processing cycle. Summary of the Invention

[0003] The purpose of the present invention is to provide an electric processing tool for tapered threads, which solves the technical problem in the background art that existing electric tools cannot integrate conical surface and thread processing, requires multiple tools to cooperate in processing, increases the processing cost, and prolongs the processing cycle.

[0004] To achieve the above purpose, the present invention provides an electric processing tool for tapered threads, including a base, a power component, a transmission component, a tool component, a sliding component, a feeding component, and a clamping component. The power component is arranged at one end of the base, the transmission component is arranged in front of the power component, the tool component is arranged on the transmission component, the sliding component and the feeding component are adjacently arranged on the base and are coaxial with the tool component, the clamping component is arranged on the sliding component, and the feeding component drives the sliding component to move axially, and makes the clamping component approach or move away from the tool component axially.

[0005] Preferably, the power component includes a motor, the transmission component includes a reducer and a shaft connector, the tool component includes a tool holder seat, a tool cartridge holder, and a tool holder nut, the sliding component includes a slider and a slide rail, the feeding component includes a lead screw nut and a lead screw, the clamping component includes a steel pipe cartridge holder and a clamp fixing seat. The reducer is arranged in front of the motor, the shaft connector is arranged at the output end of the reducer, the tool holder seat is connected to the shaft connector, the tool cartridge holder is arranged in the tool holder seat, the tool holder nut is connected to the tool holder seat and holds the tool cartridge holder. The slide rail is arranged on the base, the slider is arranged on the slide rail, the lead screw is connected to the lead screw nut, the lead screw nut is integrated with the slider, the clamp fixing seat is arranged on the slider, the steel pipe cartridge holder is arranged in the clamp fixing seat, and the slider drives the clamp fixing seat to approach or move away from the tool holder nut under the drive of the lead screw.

[0006] Preferably, the lead screw nut is arranged on a lead screw nut connecting member, and the lead screw nut connecting member and the slider are integrally connected through a clamping plate moving plate arranged thereon.

[0007] Preferably, the clamping seat is arranged on the clamping plate moving plate.

[0008] Preferably, a front bearing seat and a rear bearing seat are arranged on the lead screw, and the lead screw nut is arranged between the front bearing seat and the rear bearing seat.

[0009] Preferably, a hand wheel is arranged at the end of the lead screw.

[0010] Preferably, a steel pipe collet seat is further arranged between the steel pipe collet and the clamping seat. One end of the steel pipe collet is connected with a locking nut, and the locking nut fixes the steel pipe collet and the steel pipe collet seat on the clamping seat.

[0011] Preferably, a tool box is arranged on the base, and different specifications of chamfering cutters, die stocks and steel pipe collets are arranged in the tool box.

[0012] Compared with the prior art, the beneficial effects of the present invention are that the functions of conical surface and thread processing are integrated, the processing procedures and equipment investment are reduced, and the processing efficiency and flexibility are improved. The operator only needs to adjust parameters on the same equipment to complete different types of processing tasks, greatly shortening the processing cycle. Description of the Drawings

[0013] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0014] Figure 2 is Figure 1 the top view in

[0015] Figure 3 is Figure 2 the sectional view taken along the A-A direction in

[0016] Figure 4 is Figure 1 the exploded schematic diagram of

[0017] In the figure, 1 is the base; 2 is the speed reducer; 3 is the motor; 4 is the shaft connecting piece; 5 is the tool holder seat; 6 is the tool cartridge; 7 is the chamfering tool; 8 is the tool holder nut; 9 is the die holder; 10 is the die; 11 is the steel pipe cartridge; 12 is the tool box; 13 is the steel pipe cartridge seat; 14 is the stock clamp fixing seat; 15 is the steel pipe; 16 is the locking nut; 17 is the motor cover; 18 is the handwheel; 19 is the bearing; 20 is the front bearing seat; 21 is the stock clamp moving plate; 22 is the lead screw nut; 23 is the lead screw nut connecting piece; 24 is the slider; 25 is the slide rail; 26 is the rear bearing seat; 27 is the lead screw; 28 is the chute. Detailed implementation manners

[0018] In order to make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0019] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] It should be noted that like reference numerals and letters denote like items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0021] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the invention is customarily placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0022] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0023] In the description of the present invention, it should also be noted that, unless otherwise clearly specified and defined, the terms "arranged", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0024] The following will describe in detail some embodiments of the present invention with reference to the accompanying drawings.

[0025] As Figures 1-4 shown, a conical thread electric machining tool according to the present invention includes a base, a power assembly, a transmission assembly, a tool assembly, a sliding assembly, a clamping assembly, and a feeding assembly. The power assembly is arranged at one end of the base, the transmission assembly is arranged in front of the power assembly, the tool assembly is arranged on the transmission assembly, the sliding assembly and the feeding assembly are adjacently arranged on the base and are coaxial with the tool assembly, and the clamping assembly is arranged on the sliding assembly.

[0026] Specifically, the power assembly includes a motor 3, and the transmission assembly includes a speed reducer 2 and a shaft connector 4. The motor 3 is fixed at one end of the base 1, the speed reducer 2 is arranged in front of the motor 3, and the shaft connector 4 is arranged at the output end of the speed reducer 2. The motor 3 and the speed reducer 2 are covered together by a motor cover 17. The motor cover 17 is rectangular, and an operation panel is arranged on the motor cover 17. The operation panel is electrically connected to the motor 3 and the speed reducer 2 to control the start, stop, and setting of corresponding parameters of the power assembly and the transmission assembly.

[0027] The tool assembly includes a tool holder base 5, a tool cartridge 6, and a tool holder nut 8. The tool holder base 5 is connected to the shaft connector 4 by bolts. The tool cartridge 6 is arranged inside the tool holder base 5, and the tool holder nut 8 is threadedly connected to the tool holder base 5 to limit the tool cartridge 6. The tool cartridge 6 is conical, and its conical outer wall contacts the conical inner hole of the tool holder base 5. When the tool holder nut 8 is tightened with the tool holder base 5, the tool holder nut 8 axially pushes the tool cartridge 6 to move towards the tool holder base 5 direction, and the tool cartridge 6 gradually tightens under the action of the conical inner hole, thereby clamping the tool. Refer to the attached Figure 4 figure, which shows the tool during thread machining. A die 10 is arranged in a die holder 9, and one end of the die holder 9 is inserted into the inner hole of the tool cartridge 6. Tightening the tool holder nut 8 can clamp the die holder 9.

[0028] The sliding assembly includes a slider 24 and slide rails 25. There are two sets of parallel slide rails 25, which are fixed in the chute 28 of the base 1 by screws, and the slider 24 is arranged on the slide rails 25. The chute 28 is coaxial with the tool assembly. Therefore, the slider 24 can slide in the axial direction of the tool assembly. The feeding assembly is arranged between the two sets of slide rails 25. The feeding assembly includes a lead screw nut 22 and a lead screw 27. The lead screw 27 is threadedly connected to the lead screw nut 22, and the lead screw nut 22 is connected to the slider 24. In a preferred solution, the lead screw nut 22 is connected to a lead screw nut connecting piece 23 arranged behind it. The lead screw nut connecting piece 23 and the sliders 24 on both sides are connected to a collet moving plate 21 arranged above them by screws. When the lead screw 27 feeds, the lead screw nut 22 drives the slider 24 to move axially together. Both ends of the lead screw 27 are also provided with a front bearing seat 20 and a rear bearing seat 26. The front bearing seat 20 and the rear bearing seat 26 are fixed on the base 1 by screws. Bearings 19 are arranged in the front bearing seat 20 and the rear bearing seat 26, and the bearings 19 are sleeved on both ends of the lead screw 27. The front bearing seat 20 and the rear bearing seat 26 provide support for the feeding of the lead screw 27, and the bearings 19 facilitate the rotation of the lead screw 27. Further, a handwheel 18 is also arranged on the lead screw 27. Refer to the appendix Figure 1 , the handwheel 18 is threadedly connected to the front end of the lead screw 27. The handwheel 18 facilitates the rotation of the lead screw 27, thereby controlling the relative position of the slider 24.

[0029] The clamping assembly includes a steel pipe collet 11 and a collet fixing seat 14. The collet fixing seat 14 has a square bottom and a cylindrical upper part, and a support part is arranged between the bottom and the upper part. The steel pipe collet 11 is generally cylindrical, and a tapered enlarging part is arranged at one end. The steel pipe collet 11 is arranged in the cylindrical upper part of the collet fixing seat 14. The steel pipe collet 11 is used to clamp the steel pipe 15 to be processed. The bottom of the collet fixing seat 14 is fixed on the collet moving plate 21 by screws, so that the clamped steel pipe 15 moves towards or away from the tool assembly together with the slider 24. Further, a steel pipe collet seat 13 is also arranged between the steel pipe collet 11 and the collet fixing seat 14. The steel pipe collet seat 13 is provided with a flared opening that matches the tapered enlarging part of the steel pipe collet 11. A locking nut 16 is threadedly connected to the front end of the steel pipe collet 11, and the end face of the locking nut 16 abuts against the end face of the cylindrical upper part of the collet fixing seat 14. Refer to the appendix Figure 3 , during the tightening process, the locking nut 16 applies an axial pulling force to the steel pipe collet 11, forcing the tapered enlarging part of the steel pipe collet 11 to be squeezed against the flared opening of the steel pipe collet seat 13, thereby clamping the steel pipe 15.

[0030] A tool box 12 is also arranged on the base 1. Refer to the appendix Figure 1 and 2, the tool box 12 is square-shaped, and chamfering cutters 7 of different specifications, die heads 10 (including die head holders 9), and steel tube collets 11 are sequentially placed inside the tool box 12. The chamfering cutter 7 is used for machining conical surfaces, and the die head 10 is used for machining nuts. The installation method of the chamfering cutter 7 is the same as that of the die head 10. When machining steel tubes of different specifications, only the matching steel tube collet 11 and cutting tool need to be replaced, greatly improving the applicable range.

[0031] The working principle of the present invention is as follows: When in use, connect the device to the power supply to ensure that all components of the device are normal. According to the diameter of the steel tube 15 to be machined, call the corresponding program through the operation panel of the motor cover 17. Shake the handwheel 18, and through the slider 24, move the collet fixing seat 14 away from the tool assembly. Insert one end of the steel tube 15 to be machined into the steel tube collet 11, ensure that the steel tube 15 extends enough machining length, tighten the locking nut 16, and clamp the steel tube 15. Select a chamfering cutter 7 with a matching specification in the tool box 12, insert one end of the chamfering cutter 7 into the tool collet 6, and tighten the tool holder nut 8 to clamp the chamfering cutter 7. Press the start button of the motor 3, and the motor 3 converts electrical energy into mechanical energy and outputs a high-speed rotating power. The power output by the motor 3 is reduced in speed and increased in torque through the speed reducer 2, driving the chamfering cutter 7 to rotate rapidly. Uniformly shake the handwheel 18 to make the collet fixing seat 14 move uniformly towards the chamfering cutter 7 to start machining the conical surface. During the machining process, observe the machining situation, and if there is any abnormality, stop the device in time for adjustment. After the conical surface machining is completed, turn off the motor 3, and reverse the handwheel 18 to make the slider 24 drive the collet fixing seat 14 to return to the initial position. Loosen the tool holder nut 8, remove the chamfering cutter 7, select a matching die head 10 in the tool box 12, call the corresponding program on the operation panel, and perform thread machining.

[0032] Before the thread machining, push the end of the steel tube 15 to the position where it fits with the die head 10 through the handwheel 18, and then press the corresponding machining button on the operation panel. The die head 10 drives the steel tube 15 to move inward along the slide rail by engaging with the steel tube 15 to achieve thread machining. After the thread machining is completed, turn off the motor 3, reverse the handwheel 18 to make the slider 24 drive the collet fixing seat 14 to return to the initial position. Loosen the locking nut 16, remove the machined steel tube 15, remove the die head 10 and put it back into the tool box 12, and then turn off the power supply.

[0033] The feeding method of the present invention is not limited to manual feeding. For example, the slider 24 can be controlled by a circuit to achieve automatic feeding. The cutting tool is made of a special hard alloy material, having high hardness, high wear resistance, and good heat resistance. The shape of the tool tip is optimized. When machining the conical surface, it can ensure the smoothness and accuracy of cutting; when machining the thread, it can accurately control the pitch and thread depth.

[0034] The basic principles and advantages of the present invention have been described above. For those skilled in the art, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features. Without departing from the concept of the present invention, any obvious replacement is within the protection scope of the present invention.

Claims

1. An electric tool for processing a tapered thread, characterized in that: It includes a base, a power assembly, a transmission assembly, a tool assembly, a sliding assembly, a feeding assembly, and a clamping assembly. The power assembly is arranged at one end of the base, the transmission assembly is arranged in front of the power assembly, the tool assembly is arranged on the transmission assembly, the sliding assembly and the feeding assembly are adjacently arranged on the base and are coaxial with the tool assembly, the clamping assembly is arranged on the sliding assembly, the feeding assembly drives the sliding assembly to move axially, and makes the clamping assembly axially approach or move away from the tool assembly.

2. The electric tool for processing a tapered thread according to claim 1, characterized in that: The power assembly includes an electric motor, the transmission assembly includes a reducer and a shaft connecting member, the tool assembly includes a shank seat, a tool collet, and a shank nut, the sliding assembly includes a slider and a slide rail, the feed assembly includes a screw nut and a screw, the clamping assembly includes a steel pipe collet and a material clamp fixing seat, the reducer is arranged in front of the electric motor, the shaft connecting member is arranged at the output end of the reducer, the shank seat is connected to the shaft connecting member, the tool collet is arranged in the shank seat, the shank nut is connected to the shank seat and holds the tool collet, the slide rail is arranged on the base, the slider is arranged on the slide rail, the screw is connected to the screw nut, the screw nut is connected to the slider as a whole, the material clamp fixing seat is arranged on the slider, the steel pipe collet is arranged in the material clamp fixing seat, and the slider, driven by the screw, drives the material clamp fixing seat to approach or move away from the shank nut.

3. The electric tool for processing a tapered thread according to claim 2, characterized in that: The screw nut is arranged on a screw nut connecting piece, and the screw nut connecting piece is connected to the sliding block as a whole via a material clamp moving plate arranged thereon.

4. The electric tool for processing a tapered thread according to claim 3, characterized in that: The material clamp fixing seat is arranged on the material clamp moving plate.

5. The electric tool for processing a tapered thread according to claim 4, characterized in that: The screw rod is provided with a front bearing seat and a rear bearing seat, and the screw rod nut is arranged between the front bearing seat and the rear bearing seat.

6. The electric tool for processing a tapered thread according to claim 5, characterized in that: A hand wheel is arranged at the end of the screw rod.

7. The electric tool for processing a tapered thread according to claim 6, characterized in that: A steel pipe collet seat is also arranged between the steel pipe collet and the material clamp fixing seat. A locking nut is connected to one end of the steel pipe collet, and the locking nut fixes the steel pipe collet and the steel pipe collet seat on the material clamp fixing seat.

8. An electric tool for processing a tapered thread according to any one of claims 1 to 7, characterized in that: A tool box is arranged on the base, and chamfering knives, cutting dies and steel pipe collets of different specifications are arranged in the tool box.

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