Miniature lathe for teaching

Abstract

The utility model discloses a miniature lathe for teaching, which comprises a lathe main body (1) and a motor support plate (2), the head of the lathe main body (1) is provided with the motor support plate (2), a motor (3) is arranged on the motor support plate (2), the motor (3) is electrically connected with a speed regulator (8), the output end of the motor (3) is provided with a main shaft (4), and the other end of the main shaft (4) is provided with a chuck (9); a motor baffle (10) is arranged between the main shaft (4) and the motor (3), and a heat dissipation plate (11) is arranged at the other end of the motor (3); an inverted-T-shaped tailstock supporting plate (12) is arranged at the end part of the tail part of the lathe main body (1); according to the utility model, a complex spindle box structure is omitted, the direct current motor is directly used for controlling the main motion chuck, stepless speed regulation is realized, non-metallic materials can be lathed, the basic skill of lathing skills of students can be well trained, and compared with a common lathe, the teaching cost is lower, the operability is strong, and the use is safe and reliable.

Description

Technical Field

[0001] The utility model relates to the field of teaching instruments, in particular to a miniature lathe for teaching. Background Art

[0002] With the rapid development of China's industrialization, especially the manufacturing industry, society is increasingly demanding talent in the machinery industry. The significance of teaching the Principles of Mechanics course is becoming increasingly prominent. However, students often lack a solid understanding of this knowledge solely through textbook explanations. They need the help of auxiliary tools to visualize, concretely, and vividly convey this abstract knowledge.

[0003] Lathes are a common piece of equipment in mechanical engineering, primarily using turning tools to perform turning operations on rotating workpieces. Drills, reamers, reamers, taps, dies, and knurling tools can also be used on lathes. They can process a wide range of objects, with a wide range of spindle speed and feed adjustments. They can process internal and external surfaces, end faces, and internal and external threads. To facilitate mechanical engineering instruction and provide students with a visual understanding of the transmission system, transmission structure, kinematic analysis, operating principles, and operation of a common lathe, instructors often use real lathes as teaching aids. However, real lathes occupy a large area and are designed for turning metal parts. Due to safety hazards, students are unable to get close enough to observe and operate the turning process, resulting in unsatisfactory teaching results. Many teaching aids have since emerged, but most focus on theoretical learning, making it difficult for students to directly engage with the actual equipment and operation. However, since machine tool processing is dynamic and three-dimensional, if only theoretical explanations are given, some typical structures and control principles used on lathes cannot be accurately described in class, nor can students be given immediate practical training, resulting in low learning quality and low efficiency. Summary of the Invention

[0004] In order to overcome the above-mentioned shortcomings of the prior art, the utility model provides a teaching miniature lathe that can not only demonstrate the basic structure of the lathe, but also allow students to perform actual operation, with safe operation, low energy consumption, simple structure, easy operation, and intuitive demonstration.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a miniature lathe for teaching, including a lathe body 1, a motor support plate 2, a motor 3, a spindle 4, an X-axis guide rail 5, an X-axis screw rod 6, a tool holder and a tailstock 7. The head of the lathe body 1 is provided with a motor support plate 2, the motor 3 is arranged on the motor support plate 2, the motor 3 is electrically connected to the speed regulator 8, the output end of the motor 3 is provided with a spindle 4, and the other end of the spindle 4 is provided with a chuck 9; a motor baffle 10 is provided between the spindle 4 and the motor 3, and the other end of the motor 3 is provided with a heat dissipation plate 11; the tail end of the lathe body 1 is provided with a "convex"-shaped tailstock support plate 12.

[0006] The X-axis guide rail 5 and the X-axis screw rod 6 are arranged parallel to each other on the lathe body 1 and are located between the motor baffle 10 and the tailstock support plate 12. The X-axis guide rail 5 is a widened guide rail. A reinforcement block 13 is provided on the lathe body 1 at the lower middle end of the X-axis guide rail 5 for supporting the X-axis guide rail 5. A large slide handle 14 is provided at one end of the X-axis screw rod 6 located on the tailstock support plate 12.

[0007] A tool rest is movably connected to the middle portion of the lathe body 1. The tool rest comprises a center slide seat 15 and a center slide block 16 located thereon. The center slide seat 15 is slidably mounted on the X-axis guide rail 5 and cooperates with the X-axis lead screw 6. A center slide rail 17 and a center slide screw 18 are mounted on the center slide seat 15, with bearing mounting seats 19 provided at each end. A center slide handle 22 is provided at the front end of the center slide screw 18. The center slide block 16 is slidably mounted on the extended center slide rail 17 and cooperates with the center slide screw 18 for longitudinal movement. A tool rest 23 is rotatably mounted on the center slide block 16.

[0008] The tail of the lathe body 1 is movably connected to a tailstock 7 , which is slidably connected to the X-axis guide rail 5 via a tailstock slider 20 provided with a slide groove, and the tailstock is provided with a top 21 upward.

[0009] The motor 3 is a DC motor, and its speed change device speed regulator 8 is an electronic stepless speed regulator.

[0010] During the demonstration: Secure the non-metallic workpiece to the chuck. Rotate the large slide handle 14 to move the tool holder left and right along the X-axis guide rail 5, driven by the X-axis screw 6. Rotate the middle slide handle 22 to move the tool holder back and forth along the middle slide guide rail 17, driven by the middle slide screw 18, to adjust the tool holder position to the appropriate processing area. Start the motor, which rotates the spindle, which in turn rotates the workpiece through the chuck to complete the turning motion. If the workpiece is a long cylinder, secure one end of the workpiece to the chuck, then adjust the tailstock to place the other end against the tailstock top. Similarly, adjust the tool holder position, then start the motor to perform the workpiece machining demonstration.

[0011] Beneficial effects: ① The utility model eliminates the complex spindle box structure and directly uses a DC motor to control the main motion chuck, realizing stepless speed regulation, and the speed regulation is convenient and flexible. It can turn non-metallic materials and can well train students' basic turning skills. It has safe operation, low energy consumption, simple structure, easy operation, and intuitive demonstration. Compared with ordinary lathes, the teaching cost is lower, the operability is strong, and the use is safe and reliable.

[0012] ② The guide rail of the middle slide of the utility model is an extended guide rail, so that the tool holder has enough moving space on the middle slide seat.

[0013] ③ The utility model has a tail center. When processing a workpiece, the center supports the outer end of the workpiece, so that the radial runout of the workpiece can be clearly understood. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the present utility model.

[0015] In the figure: lathe body 1, motor support plate 2, motor 3, spindle 4, X-axis guide rail 5, X-axis screw 6, tailstock 7, speed regulator 8, chuck 9, motor baffle 10, heat sink 11, tailstock support plate 12, reinforcement block 13, large skateboard handle 14, middle skateboard seat 15, middle skateboard slider 16, middle skateboard guide rail 17, middle skateboard screw 18, bearing mounting seat 19, tailstock slider 20, top 21, middle skateboard handle 22, tool holder 23. Implementation Method

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example

[0017] like Figure 1 As shown, a miniature lathe for teaching includes a lathe body 1, a motor support plate 2, a DC motor 3, a spindle 4, an X-axis guide rail 5, an X-axis screw 6, a tool holder and a tailstock 7. The head of the lathe body 1 is provided with a motor support plate 2, the DC motor 3 is arranged on the motor support plate 2, the DC motor 3 is electrically connected to the speed regulator 8, the output end of the DC motor 3 is provided with a spindle 4, and the other end of the spindle 4 is provided with a chuck 9; a motor baffle 10 is provided between the spindle 4 and the motor 3, and the other end of the DC motor 3 is provided with a heat dissipation plate 11; the tail end of the lathe body 1 is provided with a "convex"-shaped tailstock support plate 12.

[0018] The X-axis guide rail 5 and the X-axis screw rod 6 are arranged parallel to each other on the lathe body 1 and are located between the motor baffle 10 and the tailstock support plate 12. The X-axis guide rail 5 is a widened guide rail. A reinforcement block 13 is provided on the lathe body 1 at the lower middle end of the X-axis guide rail 5 for supporting the X-axis guide rail 5. A large slide handle 14 is provided at one end of the X-axis screw rod 6 located on the tailstock support plate 12.

[0019] A tool rest is movably connected to the middle portion of the lathe body 1. The tool rest comprises a center slide seat 15 and a center slide block 16 located thereon. The center slide seat 15 is slidably mounted on the X-axis guide rail 5 and cooperates with the X-axis lead screw 6. A center slide rail 17 and a center slide screw 18 are mounted on the center slide seat 15, with bearing mounting seats 19 provided at each end. A center slide handle 22 is provided at the front end of the center slide screw 18. The center slide block 16 is slidably mounted on the extended center slide rail 17 and cooperates with the center slide screw 18 for longitudinal movement. A tool rest 23 is rotatably mounted on the center slide block 16.

[0020] The tail of the lathe body 1 is movably connected to a tailstock 7 , which is slidably connected to the X-axis guide rail 5 via a tailstock slider 20 provided with a slide groove, and the tailstock is provided with a top 21 upward.

Claims

1. A teaching micro lathe, comprising a lathe body (1), a motor support plate (2), a motor (3), a spindle (4), an X-axis guide rail (5), an X-axis screw rod (6), a tool holder and a tailstock (7), characterized in that: The head of the lathe body (1) is provided with a motor support plate (2), the motor (3) is provided on the motor support plate (2), the motor (3) is electrically connected to the speed regulator (8), the output end of the motor (3) is provided with a spindle (4), and the other end of the spindle (4) is provided with a chuck (9); a motor baffle (10) is provided between the spindle (4) and the motor (3), and the other end of the motor (3) is provided with a heat dissipation plate (11); the tail end of the lathe body (1) is provided with a "convex"-shaped tailstock support plate (12); The X-axis guide rail (5) and the X-axis screw rod (6) are arranged parallel to each other on the lathe body (1) and are located between the motor baffle (10) and the tailstock support plate (12); the X-axis guide rail (5) is a widened guide rail; a reinforcing block (13) is provided on the lathe body (1) at the lower middle end of the X-axis guide rail (5); and a large slide handle (14) is provided at one end of the X-axis screw rod (6) located on the tailstock support plate (12); The lathe body (1) is movably connected to a tool holder seat in the middle, and the tool holder seat is composed of a middle slide seat (15) and a middle slide slider (16) located thereon, the middle slide seat (15) is slidably set on the X-axis guide rail (5), and the middle slide seat (15) cooperates with the X-axis screw rod (6), the middle slide guide rail (17) and the middle slide screw rod (18) are set on the middle slide seat (15), and bearing mounting seats (19) are respectively provided at both ends, and a middle slide handle (22) is provided at the front end of the middle slide screw rod (18); the middle slide slider (16) is slidably set on the extended middle slide guide rail (17) and cooperates with the middle slide screw rod (18) to make longitudinal movement, and a tool holder (23) is rotatably set on the middle slide slider (16); The tail of the lathe body (1) is movably connected to a tailstock (7), and the tailstock (7) is slidably connected to the X-axis guide rail (5) through a tailstock slider (20) provided with a slide groove, and a top (21) is provided on the tailstock.

2. A teaching micro lathe according to claim 1, characterized in that: The motor (3) is a DC motor, and its speed change device speed regulator (8) is a stepless speed regulator.

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