A quick tool changer for facilitating machining of motor parts

Abstract

The utility model discloses a quick tool changer convenient to motor part processing, including main tool body, the both ends of rotator set up blade groove, and the turning blade is fixed in the blade groove through locking screw, the cylinder of rotator bottom and the hole clearance cooperation in tool cushion and main tool body, and main tool body sets up cylinder jacks, and the cylinder of rotator bottom and cylinder jacks abut, and are locked through the bolt of main tool body outside, the below of rotator is equipped with the key, and is in touch positioning with the keyway of tool cushion plane, and the inside of main tool body includes the upper spout pipe of main tool body upper portion and the lower spout of front end, the utility model has the advantages that: reduce production cost and improve processing efficiency, the internal cooling device in main tool body sprays coolant to cutting edge through upper spout pipe and lower spout, solves the processing overheating problem, improves cutting performance, can use high pressure cooling water to wash away the chip, solves long chip problem, and the rotator with positioning key can realize quick tool changing function.

Description

Technical Field

[0001] This utility model relates to the field of mechanical manufacturing, specifically a tool changing device for metal cutting. Background Technology

[0002] As key components of an electric motor, the motor shaft and end cover directly impact the motor's profit margin through their production cost and efficiency. Motor shafts require high surface quality; traditional machining methods produce long, narrow chips that easily scratch the surface. It's difficult to balance high efficiency and low vibration across different motor shaft models. To better assemble bearings and other parts, chamfers of 15° and 20° angles are often designed, which is challenging for ordinary machine tools. Furthermore, chamfered areas are often stress concentration zones, inevitably reducing tool life. When machining the inner diameter of the motor end cover on a traditional vertical lathe, the cast iron material inevitably contains sand holes, irregular surfaces, and casting defects, leading to intermittent cutting by the cutting tool and severely impacting tool life.

[0003] In turning, a small lead angle can result in higher feed rates, effectively improving cutting efficiency. However, excessive radial force can easily cause vibration under unstable conditions. A larger lead angle increases chip thickness but reduces radial force, thus minimizing vibration. Therefore, different machining conditions require different lead angles for the cutting tool.

[0004] In motor machining, controlling the waste generated during non-machining time is crucial, as it significantly impacts motor production costs. A rapid tool change system can greatly improve the efficiency of tool changing, tool setting, and rapid tool loading. Utility Model Content

[0005] To address the aforementioned problems, this utility model discloses a quick tool changer that facilitates the processing of motor parts.

[0006] The specific technical solution is as follows:

[0007] A quick tool changer for easy machining of motor parts includes a main tool body, a rotating body, a tool pad, and a cylindrical push rod.

[0008] The rotating body has blade grooves at both ends, and the cutting blade is fixed in the blade grooves by locking screws. The cylinder at the bottom of the rotating body forms a clearance fit with the hole in the tool pad and the main cutting body. A cylindrical top rod is set inside the main cutting body. One end of the cylindrical top rod is flat and the other end is semi-circular. After the cylinder at the bottom of the rotating body abuts against the cylindrical top rod, it is locked by bolts on the outside of the main cutting body. A key is provided at the bottom of the rotating body and contacts and positions itself with the keyway at the flat surface of the tool pad. The main cutting body includes an upper spray pipe at the top and a lower spray nozzle at the front end. The upper spray pipe is connected to a horizontal channel inside the main cutting body. One end of the horizontal channel is connected to a connecting pipe, and the other end is connected to a vertical channel. The lower part of the vertical channel is arranged horizontally, passes around the cylinder at the bottom of the rotating body, and extends into the outer wall of the main cutting body, forming a lower spray nozzle on the main cutting body.

[0009] There are two lower nozzles, which are respectively located on adjacent surfaces at the front end of the main cutter body, with the water outlet direction facing the cutting edge of the lathe tool.

[0010] The upper nozzle has a C-shaped structure, and its lower end is connected to the horizontal channel via a thread.

[0011] The two blade slots of the rotating body are respectively equipped with obtuse-angled and acute-angled blades, and the tips of the blades are located on the outermost side of the corresponding blade slots.

[0012] The coolant spray direction of the upper nozzle and lower nozzle can be finely adjusted by the nozzle diameter or spray angle to adapt to the cutting requirements of different materials.

[0013] The keys of the rotating body are respectively located below the obtuse-angled and acute-angled cutting edges.

[0014] The advantages of this invention are: the internal cooling device inside the main blade body sprays coolant onto the cutting edge through the upper spray pipe and lower spray nozzle, which not only solves the problem of overheating during machining and improves cutting performance, but also uses high-pressure cooling water to flush away chips and solve the problem of long chips; in addition, the keyed rotating body can realize the function of quick tool change, and the cylinder and the cylinder top rod with bolts can ensure that the operator can quickly remove the rotating body by simply loosening them, which has the effect of quick tool change. At the same time, the structure of the key and keyway can better constrain the rotating body and realize high load machining work. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a perspective view of the present invention;

[0017] Figure 3 This is a schematic diagram of a half-section of the present invention;

[0018] Figure 4 This is a schematic diagram of the cylindrical top rod.

[0019] Figure 5 This is a schematic diagram of the tool pad structure;

[0020] Figure 6 This is a schematic diagram of a solid of revolution. 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] A quick tool changer for easy machining of motor parts includes a main tool body 1, a rotating body 6, a tool pad 9, and a cylindrical push rod 13;

[0023] The rotating body 6 has blade grooves at both ends, and the cutting blade is fixed in the blade grooves by locking screws 10. The cylinder 14 at the bottom of the rotating body 6 forms a clearance fit with the hole in the tool pad 9 and the main cutter body 1. The main cutter body 1 has a cylindrical top rod 13 inside, one end of which is flat and the other end is semi-circular. After the cylinder 14 at the bottom of the rotating body 6 abuts against the cylindrical top rod 13, it is locked by bolts on the outside of the main cutter body 1. The rotating body 6 has a key 17 at the bottom, which contacts and positions itself with the keyway 18 at the flat surface of the tool pad 9. The main cutter body 1 includes an upper spray pipe 3 at the top of the main cutter body and a lower spray nozzle 8 at the front end. The upper spray pipe 3 is connected to a horizontal channel 32 inside the main cutter body. One end of the horizontal channel 32 is connected to a connecting pipe 33, and the other end is connected to a vertical channel 31. The lower part of the vertical channel 31 is arranged horizontally, passes around the cylinder 14 at the bottom of the rotating body 6, and extends to the outer wall of the main cutter body 1, forming the lower spray nozzle 8 on the main cutter body 1.

[0024] There are two lower nozzles 8, which are respectively located on adjacent surfaces at the front end of the main cutter body 1, with the water outlet direction facing the cutting edge of the lathe tool.

[0025] The upper nozzle 3 has a C-shaped structure, and its lower end is connected to the horizontal channel 32 by a thread.

[0026] The two blade slots of the rotating body 6 are respectively equipped with obtuse-angle blade tip 7 and acute-angle blade tip 5, wherein the obtuse-angle blade tip 7 is a 10-degree negative rake angle blade and the acute-angle blade tip 5 is an 80-degree negative rake angle blade, and the blade tips of the two are located at the outermost edge of the corresponding blade slot.

[0027] The coolant spray direction of the upper nozzle 3 and the lower nozzle 8 can be finely adjusted by the nozzle diameter or spray angle to adapt to the cutting requirements of different materials.

[0028] The working principle of this utility model is as follows: The main cutting body 1 serves as the basic structure. The rotating body 6 achieves rotation by forming a clearance fit between the bottom cylinder 14 and the holes of the main cutting body 1 and the tool pad 9. After adjusting to the required main cutting edge angle, the flat end of the cylindrical top rod 13 inside the main cutting body 1 abuts against the bottom cylinder 14 of the rotating body 6 and is locked and fixed by the outer bolts. The rotating body 6 with the positioning key 17 cooperates with the keyway 18 of the tool pad 9, which can quickly position and realize the turning of the outer circle or end face. The cutting tool is fixed in the cutting tool grooves at both ends of the rotating body 6 by the locking screw 10. Its obtuse-angle cutting tool tip 7 and acute-angle cutting tool tip 5 are located on the outer side to make full use of the cutting edge. The cooling water channel inside the main cutting body 1 is connected to the upper spray pipe 3 and the lower spray nozzle 8. The high-pressure coolant is sprayed from the upper and lower directions to the cutting edge to solve the problems of overheating and long chips. At the same time, the locking screw 11 of the sawtooth thread 12 at the tail of the main cutting body 1 can prevent loosening caused by vibration and ensure the stable operation of the system.

Claims

1. A quick tool changer for easy machining of motor parts, characterized in that: The device includes a main cutting body (1), a rotating body (6), a cutting tool pad (9), and a cylindrical push rod (13). The rotating body (6) has cutting tool slots at both ends, and the cutting tool is fixed in the slots by locking screws (10). A cylinder (14) at the bottom of the rotating body (6) forms a clearance fit with the cutting tool pad (9) and the holes in the main cutting body (1). A cylindrical push rod (13) is installed inside the main cutting body (1). One end of the cylindrical push rod (13) is flat, and the other end is semi-circular. After the cylinder (14) at the bottom of the rotating body (6) abuts against the cylindrical push rod (13), the device is locked by bolts on the outside of the main cutting body (1). Tight; The rotating body (6) is provided with a key (17) below it, and is positioned in contact with the keyway (18) at the plane of the tool pad (9). The main blade body (1) includes an upper spray pipe (3) at the upper part of the main blade body and a lower spray port (8) at the front end. The upper spray pipe (3) is connected to the horizontal channel (32) inside the main blade body. One end of the horizontal channel (32) is connected to the connecting pipe (33), and the other end is connected to the vertical channel (31). The vertical channel (31) is arranged horizontally below, passes around the cylinder (14) at the bottom of the rotating body (6) and extends to the outer wall of the main blade body (1), and forms a lower spray port (8) on the main blade body (1).

2. The quick tool changer for facilitating the machining of motor parts according to claim 1, characterized in that: There are two lower nozzles (8), which are respectively set on the adjacent front surfaces of the main blade body (1), and the water outlet direction is towards the cutting edge of the lathe tool.

3. The quick tool changer for facilitating the machining of motor parts according to claim 1, characterized in that: The upper nozzle (3) has a C-shaped structure, and its lower end is connected to the horizontal channel (32) by a thread.

4. The quick tool changer for facilitating the machining of motor parts according to claim 1, characterized in that: The two blade slots of the rotating body (6) are respectively equipped with obtuse-angle blade tip (7) and acute-angle blade tip (5), and the blade tips of the two are located on the outermost side of the corresponding blade slot.

5. The quick tool changer for facilitating the machining of motor parts according to claim 1, characterized in that: The coolant spray direction of the upper nozzle (3) and lower nozzle (8) can be finely adjusted by the nozzle diameter or spray angle to adapt to the cutting requirements of different materials.

6. The quick tool changer for facilitating the machining of motor parts according to claim 4, characterized in that: The key (17) of the rotating body (6) is located below the obtuse-angled blade tip (7) and the acute-angled blade tip (5), respectively.

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