Machining equipment for machining impeller threads through A61 chromium alloy material

Abstract

The invention relates to the technical field of alloy machining equipment, in particular to machining equipment for machining impeller threads through A61 chromium alloy materials. The machining equipment comprises a machining table, a vertical plate and a driving base are arranged on the two sides of the upper surface of the machining table correspondingly, and a rotating chuck driven by a first driving source to rotate is installed on the vertical plate; a workpiece to be subjected to thread machining is fixedly mounted on the rotating chuck, a pushing sliding table is movably mounted on the upper surface of the driving base, and the pushing sliding table is driven by a second driving source to be close to or away from the workpiece to be subjected to thread machining; compared with the prior art, the thread machining tool composed of the multiple cutter tooth parts is arranged, when external threads are machined, one cutter tooth part can be used for machining the threads, when one cutter tooth part is damaged, only the drive rod needs to be driven to drive the installation clamping base to rotate, the rotating installation clamping base drives the thread machining tool to rotate, and the thread machining tool can be used for machining the threads. Therefore, the other cutter tooth part is moved to a thread machining position, and rapid cutter changing is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of alloy processing equipment, and particularly to a processing equipment for machining the threads of an impeller from an A61 chromium alloy material. Background Art

[0002] High-chromium cast iron is an alloy material with excellent wear resistance and corrosion resistance. Due to its outstanding corrosion resistance, high-chromium cast iron is also widely used in the chemical and petroleum industries for manufacturing corrosion-resistant components such as pipes, valves, and pump bodies.

[0003] A61 is an alloy with a chromium content between 30% - 32%, a molybdenum content between 3.0% - 3.5%, and a manganese content between 2.0% - 2.5%. A61 is a new material A61 introduced by our company, and its as-cast hardness reaches HRC≥62. Since high-chromium alloys have extremely high hardness and belong to difficult-to-machine materials, and their hardness cannot be adjusted by heat treatment to improve machining performance. The impeller is a crucial component in a water pump, usually thread-connected to the pump shaft, and generally uses triangular threads and T-shaped threads due to its structure and size. Due to the high hardness of the workpiece and the large chip resistance between the cutting tool and the workpiece during machining, the cutting tool wears severely and it is difficult to continuously machine, so the cutting edge needs to be frequently replaced, resulting in low machining efficiency and increased production costs. Therefore, the present invention proposes a processing equipment for machining the threads of an impeller from an A61 chromium alloy material. Summary of the Invention

[0004] The purpose of the present invention is to provide a processing equipment for machining the threads of an impeller from an A61 chromium alloy material to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A processing equipment for machining the threads of an impeller from an A61 chromium alloy material, including a processing table. On both sides of the upper surface of the processing table, a vertical plate and a driving base are respectively arranged. A rotary chuck driven to rotate by a first driving source is installed on the vertical plate, and a workpiece to be thread-machined is fixedly installed on the rotary chuck. A propulsion slide is movably installed on the upper surface of the driving base, and the propulsion slide is driven by a second driving source to approach or move away from the workpiece to be thread-machined. A lateral movement slide is movably installed on the upper surface of the propulsion slide, and a tool mounting table is fixedly installed on the upper surface of the lateral movement slide. A thread machining tool is fixedly installed on the tool mounting table. A plurality of tooth portions arranged in a ring and evenly distributed are provided on the outer surface of the end of the thread machining tool close to the workpiece to be thread-machined. A discharge groove is arranged between adjacent tooth portions, and tooth teeth are provided on the tooth portions.

[0006] As a preferred technical solution of the present invention, the driving base includes a base shell fixed on the processing table. A threaded lead screw is rotatably installed inside the base shell. A lead screw sleeve is threadedly sleeved on the outer surface of the threaded lead screw. The lead screw sleeve is slidably installed in the base shell, and a horizontally arranged propulsion groove is formed at the top of the base shell. The upper end of the lead screw sleeve is fixedly connected to the bottom of the propulsion slide through a connecting member, and the connecting member is arranged in the propulsion groove.

[0007] As a preferred technical solution of the present invention, a sliding bar is fixedly connected to the bottom of the lead screw sleeve, and the sliding bar is slidably installed on the inner wall of the base shell.

[0008] As a preferred technical solution of the present invention, the rotating chuck is a three-jaw chuck, and three clamping jaws are arranged on the rotating chuck.

[0009] As a preferred technical solution of the present invention, side sliding grooves are formed on the upper surface of the propulsion slide, and side sliding blocks are fixedly connected to the lower surface of the side shifting slide. The side sliding blocks are slidably installed in the side sliding grooves.

[0010] As a preferred technical solution of the present invention, an installation clamping column is arranged at one end of the thread processing tool away from the workpiece to be thread processed. The tool installation table includes an installation shell fixedly connected to the side shifting slide. An inner cavity is formed inside the installation shell. An installation clamping seat is arranged in the inner cavity. The installation clamping column is fixedly inserted on the installation clamping seat.

[0011] As a preferred technical solution of the present invention, a rotating sleeve is fixedly sleeved on the outer surface of the installation clamping seat, and the rotating sleeve is rotatably installed in the inner cavity. One end of the installation clamping seat is fixedly connected to a driving rod, and the driving rod is driven to rotate by a third driving source.

[0012] As a preferred technical solution of the present invention, an installation positioning sleeve is arranged on one side of the installation shell close to the workpiece to be thread processed, and a positioning opening is formed on the installation positioning sleeve. A plurality of positioning holes and an installation key groove are formed on the installation clamping column, and a clamping key matched with the installation key groove is arranged on the installation clamping seat.

[0013] As a preferred technical solution of the present invention, an electric control box is arranged on the processing table. The first driving source, the second driving source, and the third driving source are all servo motors and are all controlled and driven by the electric control box.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] A processing device for machining the threads of an impeller with an A61 chromium alloy material according to the present invention. By providing a thread processing tool composed of multiple cutter teeth, during external thread processing, one cutter tooth can be used for thread processing. When one of the cutter teeth is damaged, only need to drive the driving rod to drive the mounting chuck to rotate, and the rotating mounting chuck drives the thread processing tool to rotate, so as to move another cutter tooth to the thread processing position, realizing rapid tool change. Compared with the traditional technology, it can realize tool change without disassembling and assembling the tool, thus greatly reducing the processing time and improving the processing efficiency.

[0016] Other features and advantages of the present invention will be described in detail in the following specific embodiments. Brief Description of the Drawings

[0017] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 is a front view structure schematic diagram of the thread processing tool of the present invention;

[0019] Figure 3 is a side view structure schematic diagram of the thread processing tool of the present invention;

[0020] Figure 4 is a structure schematic diagram of the driving base of the present invention;

[0021] Figure 5 is a structure schematic diagram of the tool mounting table of the present invention.

[0022] In the figure: 1, processing table; 10, electric control box; 2, vertical plate; 20, first driving source; 3, rotary chuck; 30, clamping jaws; 4, workpiece to be thread processed; 5, driving base; 50, second driving source; 51, base shell; 52, thread lead screw; 53, lead screw sleeve; 54, connecting piece; 55, slide bar; 56, propulsion groove; 6, propulsion slide; 60, side chute; 7, side shift slide; 70, side slider; 8, tool mounting table; 80, third driving source; 81, mounting positioning sleeve; 82, positioning port; 83, mounting shell; 84, inner cavity; 85, mounting chuck; 86, rotating sleeve; 87, driving rod; 9, thread processing tool; 91, mounting stud; 92, cutter tooth part; 93, tooth; 94, discharge groove; 95, mounting keyway; 96, positioning hole. Detailed Description of the Invention

[0023] 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. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. 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.

[0024] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the drawings. 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. Therefore, it should not be construed as a limitation to the present invention.

[0025] In the description of the present invention, it should also be noted that unless otherwise clearly defined and limited, the terms "set", "installed", "connected", "connected" 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 elements. 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.

[0026] Please refer to Figures 1 - 5, in this embodiment, a processing device for machining the impeller thread with an A61 chromium alloy material is provided, including a processing table 1. On both sides of the upper surface of the processing table 1, a vertical plate 2 and a driving base 5 are respectively arranged. A rotary chuck 3 driven by a first driving source 20 is installed on the vertical plate 2. The rotary chuck 3 is a three-jaw chuck, and three clamping jaws 30 are arranged on the rotary chuck 3. A workpiece 4 to be thread-machined is fixedly installed on the rotary chuck 3. A propulsion slide 6 is movably installed on the upper surface of the driving base 5, and the propulsion slide 6 is driven by a second driving source 50 to approach or move away from the workpiece 4 to be thread-machined. A lateral movement slide 7 is movably installed on the upper surface of the propulsion slide 6. A tool mounting table 8 is fixedly installed on the upper surface of the lateral movement slide 7. A thread processing tool 9 is fixedly installed on the tool mounting table 8. A plurality of annularly and evenly arranged cutter tooth parts 92 are arranged on the outer surface of one end of the thread processing tool 9 close to the workpiece 4 to be thread-machined. A discharge groove 94 is arranged between adjacent cutter tooth parts 92. Tooth teeth 93 are arranged on the cutter tooth parts 92. The driving base 5 includes a base shell 51 fixed on the processing table 1. A threaded lead screw 52 is rotatably installed inside the base shell 51. A lead screw sleeve 53 is threadedly sleeved on the outer surface of the threaded lead screw 52. The lead screw sleeve 53 is slidably installed in the base shell 51. A horizontally arranged propulsion groove 56 is formed at the top of the base shell 51. The upper end of the lead screw sleeve 53 is fixedly connected to the bottom of the propulsion slide 6 through a connecting member 54, and the connecting member 54 is arranged in the propulsion groove 56. A sliding bar 55 is fixedly connected to the bottom of the lead screw sleeve 53, and the sliding bar 55 is slidably installed on the inner wall of the base shell 51. By providing the thread processing tool 9 composed of a plurality of cutter tooth parts 92, during external thread machining, one cutter tooth part 92 can be used for thread machining. When one of the cutter tooth parts 92 is damaged, only need to drive the driving rod 87 to drive the mounting chuck 85 to rotate. The rotating mounting chuck 85 drives the thread processing tool 9 to rotate, so as to move another cutter tooth part 92 to the thread processing position, realizing rapid tool change. Compared with the traditional technology, it can realize tool change without disassembling and assembling the tool, thus greatly reducing the processing time and improving the processing efficiency. Moreover, using the annular thread processing tool 9 composed of a plurality of cutter tooth parts 92 can also realize the processing of internal threads, thus achieving the purpose of multiple processing of internal and external threads with a single tool.

[0027] In this embodiment, a side sliding groove 60 is formed on the upper surface of the propulsion slide 6, and a side sliding block 70 is fixedly connected to the lower surface of the lateral movement slide 7, and the side sliding block 70 is slidably installed in the side sliding groove 60. Among them, by using the cooperation of the side sliding groove 60 and the side sliding block 70, the lateral movement of the lateral movement slide 7 can be realized. During external thread machining, when the thread processing tool 9 advances to the end of the workpiece 4 to be thread-machined and one-side thread cutting is completed, starting the lateral movement of the lateral movement slide 7 can realize the separation of the thread processing tool 9 from the workpiece 4 to be thread-machined, so as to better reset the thread processing tool 9 and then make it perform the propulsion work of secondary thread cutting.

[0028] In this embodiment, an installation clamping post 91 is provided at one end of the thread processing tool 9 away from the workpiece 4 to be thread processed. The tool installation table 8 includes an installation shell 83 fixedly connected to the side shift slide 7. An inner cavity 84 is formed inside the installation shell 83. An installation clamping seat 85 is arranged inside the inner cavity 84. The installation clamping post 91 is fixedly inserted on the installation clamping seat 85. A rotating sleeve 86 is fixedly sleeved on the outer surface of the installation clamping seat 85, and the rotating sleeve 86 is rotatably installed inside the inner cavity 84. One end of the installation clamping seat 85 is fixedly connected to a driving rod 87, and the driving rod 87 is driven to rotate by a third driving source 80. One side of the installation shell 83 close to the workpiece 4 to be thread processed is provided with an installation positioning sleeve 81, and a positioning opening 82 is formed on the installation positioning sleeve 81. A plurality of positioning holes 96 and an installation keyway 95 are formed on the installation clamping post 91, and the installation clamping seat 85 is provided with a clamping key matched with the installation keyway 95. Among them, the rotating sleeve 86 is symmetrically installed inside the inner cavity 84 through two groups of balls to bear radial and axial loads, ensuring the stability and rigidity when the installation clamping seat 85 rotates. The third driving source 80 is internally provided with an encoder, which can realize the closed-loop control of the tool rotation angle. When a certain cutting tooth part 92 is worn, the electric control box 10 sends an instruction to start the third driving source 80, and the driving rod 87 drives the installation clamping seat 85 and the thread processing tool 9 to rotate a set angle, so that the spare cutting tooth part 92 is accurately aligned with the processing position. It is also possible to judge whether the position is accurately adjusted by observing whether the positioning opening 82 of the installation positioning sleeve 81 is aligned with the positioning hole 96. This design enables the tool change process without disassembling the tool, shortening the time-consuming from the traditional 10 minutes to within 30 seconds, and the repeated positioning accuracy reaches ±0.005 mm, significantly improving the processing continuity and surface quality of the A61 chromium alloy impeller thread.

[0029] It should be noted that an electric control box 10 is arranged on the processing table 1. The first driving source 20, the second driving source 50 and the third driving source 80 are all servo motors and are all controlled and driven by the electric control box 10.

[0030] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A processing device for machining the threads of an impeller made of an A61 chromium alloy material, characterized in that, It includes a processing table (1). On both sides of the upper surface of the processing table (1), a vertical plate (2) and a driving base (5) are respectively arranged. On the vertical plate (2), a rotating chuck (3) driven by a first driving source (20) to rotate is installed. A workpiece to be thread - processed (4) is fixedly installed on the rotating chuck (3). On the upper surface of the driving base (5), a propulsion slide (6) is movably installed, and the propulsion slide (6) is driven by a second driving source (50) to approach or move away from the workpiece to be thread - processed (4). On the upper surface of the propulsion slide (6), a lateral movement slide (7) is movably installed. On the upper surface of the lateral movement slide (7), a tool mounting table (8) is fixedly installed. A thread - processing tool (9) is fixedly installed on the tool mounting table (8). On the outer surface of one end of the thread - processing tool (9) close to the workpiece to be thread - processed (4), a plurality of cutter tooth parts (92) arranged in a ring - shaped and evenly distributed manner are provided. A discharge groove (94) is arranged between adjacent cutter tooth parts (92). Tooth teeth (93) are arranged on the cutter tooth parts (92).

2. The processing equipment for machining the impeller thread of an A61 chromium alloy material according to claim 1, characterized in that, The driving base (5) includes a base shell (51) fixed on the processing table (1). Inside the base shell (51), a threaded lead screw (52) is rotatably installed. A lead screw sleeve (53) is threadedly sleeved on the outer surface of the threaded lead screw (52). The lead screw sleeve (53) is slidably installed in the base shell (51). And a horizontally arranged propulsion groove (56) is opened at the top of the base shell (51). The upper end of the lead screw sleeve (53) is fixedly connected to the bottom of the propulsion slide (6) through a connecting member (54), and the connecting member (54) is arranged in the propulsion groove (56).

3. The processing equipment for machining the impeller thread of an A61 chromium alloy material according to claim 2, characterized in that, A slide bar (55) is fixedly connected to the bottom of the lead screw sleeve (53), and the slide bar (55) is slidably installed on the inner wall of the inside of the base shell (51).

4. The processing equipment for machining the impeller thread of an A61 chromium alloy material according to claim 1, characterized in that, The rotating chuck (3) is a three - jaw chuck, and three clamping jaws (30) are arranged on the rotating chuck (3).

5. The processing equipment for machining the impeller thread of an A61 chromium alloy material according to claim 1, characterized in that, A lateral sliding groove (60) is opened on the upper surface of the propulsion slide (6). A lateral sliding block (70) is fixedly connected to the lower surface of the lateral movement slide (7), and the lateral sliding block (70) is slidably installed in the lateral sliding groove (60).

6. The processing equipment for machining the impeller thread of an A61 chromium alloy material according to claim 1, characterized in that, An installation clamping column (91) is arranged at one end of the thread - processing tool (9) away from the workpiece to be thread - processed (4). The tool mounting table (8) includes an installation shell (83) fixedly connected to the lateral movement slide (7). An inner cavity (84) is opened inside the installation shell (83). An installation clamping seat (85) is arranged in the inner cavity (84). The installation clamping column (91) is fixedly inserted on the installation clamping seat (85).

7. The processing equipment for machining the impeller thread with an A61 chromium alloy material according to claim 6, characterized in that, A rotating sleeve (86) is fixedly sleeved on the outer surface of the installation clamping seat (85), and the rotating sleeve (86) is rotatably installed in the inner cavity (84). One end of the installation clamping seat (85) is fixedly connected to a driving rod (87), and the driving rod (87) is driven to rotate by a third driving source (80).

8. An A61 chromium alloy material processing equipment for processing the impeller thread according to claim 7, characterized in that, On one side of the installation shell (83) close to the workpiece (4) to be thread - machined, an installation positioning sleeve (81) is provided, and a positioning opening (82) is formed on the installation positioning sleeve (81). A plurality of positioning holes (96) and installation key grooves (95) are formed on the installation clamping post (91), and the installation clamping seat (85) is provided with a clamping key that cooperates with the installation key groove (95).

9. The processing equipment for machining the impeller thread of an A61 chromium alloy material according to claim 1, characterized in that, An electric control box (10) is provided on the processing table (1). The first driving source (20), the second driving source (50), and the third driving source (80) are all servo motors and are all controlled and driven by the electric control box (10).

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