Main shaft for supporting cutting tool

Abstract

The utility model relates to the technical field of cutting tool equipment, in particular to a main shaft for supporting a cutting tool, which comprises a rotating bearing, a rotating shaft, a belt pulley, a connector and a connecting clamping groove, a rotating bearing is fixedly connected to the inner side of the main shaft body, a rotating shaft is fixedly connected to the interior of the rotating bearing, a belt wheel is installed on the outer side of the rotating shaft, a connector is fixedly connected to the top face of the rotating shaft, and four sets of connecting clamping grooves are evenly formed in the top face of the connector. According to the utility model, the belt transmission structure is arranged, the belt transmission mode is utilized to drive the rotating shaft to rotate through the belt pulley, and the belt can play a buffering role in the transmission process, so that the rotating shaft can be stably driven to rotate, and the vibration received by the main shaft is reduced; the cutter can be tightly matched with the rotating shaft, and the stability of the cutter during rotation is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to cutting tool equipment technical field especially, it is a kind of main shaft for supporting cutting tool. BACKGROUND

[0002] Cutting tool is a kind of tool for cutting off redundant material from workpiece to obtain required shape, size precision and surface quality, in the machining process, cutting tool directly acts on workpiece material, and removes redundant material by the relative movement between cutting edge and workpiece.

[0003] The existing cutting tool is connected with main shaft, is mostly installed and fixed by the way of threaded connection, is rotated by the way of gear transmission connection to drive rotating shaft, and vibration is generated by the mutual engagement of gear, so that the threaded connection between cutting tool and main shaft is loose, and the normal work of cutting tool is affected. UTILITY MODEL CONTENTS

[0004] In order to overcome the problem that cutting tool is connected with main shaft, is installed and fixed by the way of threaded connection, is rotated by the way of gear transmission connection to drive rotating shaft, and vibration is generated by the mutual engagement of gear, so that the threaded connection between cutting tool and main shaft is loose, and the normal work of cutting tool is affected.

[0005] The utility model discloses a kind of main shaft for supporting cutting tool, including main shaft body, rotating bearing, rotating shaft, belt pulley, connecting head, connecting slot, tool assembly and cooling assembly;The inner side of the main shaft body is fixedly connected with rotating bearing, the inside of the rotating bearing is fixedly connected with rotating shaft, the outer side of the rotating shaft is installed with belt pulley, the top surface of the rotating shaft is fixedly connected with connecting head, the top surface of the connecting head is evenly provided with four groups of connecting slots, the top surface of the connecting head is provided with tool assembly, the inside of the main shaft body is provided with cooling assembly.

[0006] Preferably, main shaft body can provide support for the entire device, provide installation reference and rotating support for cutting tool, rotating bearing can provide support for the weight of rotating shaft, belt pulley can transmit the power of rotation, connecting slot on connecting head can make tool assembly and device quickly clamped and docked, make the connection between cutting tool and rotating shaft more firm, ensure the stability of tool assembly during rotation, cooling assembly can reduce the temperature of main shaft during rotation, avoid deformation caused by excessive temperature of main shaft, affect processing accuracy.

[0007] As preferred, the outer side of the rotating shaft is provided with a flat key, the flat key is arranged on the inner side of the belt pulley, the rotating shaft is connected with the belt pulley, the top surface of the rotating bearing is provided with a sealing ring, the sealing ring is arranged on the outer side of the rotating shaft, the rotating bearing supports the weight of the rotating shaft and the cutter, and can bear the large radial force generated in the cutting process, the power for rotating is transmitted through the belt pulley, the torque is transmitted through the mutual extrusion of the flat key and the key groove on the belt pulley and the rotating shaft, so that the cutter is rotated through the rotating shaft, and the sealing ring prevents impurities in the cutting process from entering the interior of the main shaft.

[0008] As preferred, the top surface of the connecting head is provided with a connecting slot, the top surface of the connecting head is uniformly provided with four groups of mounting holes, and the side surface of the connecting head is provided with a fixed insertion hole. The connecting slot on the connecting head allows the cutter to be butt-jointed and clamped, and the cutter can be connected and limited through the mounting holes.

[0009] As preferred, the fixed insertion hole and the connecting slot are mutually penetrated, the inside of the connecting head is provided with a fixed insertion pin, and the fixed insertion pin is clamped and connected with the inside of the fixed insertion hole. The fixed insertion pin is inserted into the fixed insertion hole, passes through the fixed hole arranged on the connecting plug, and thus the connecting cutter and the connecting head are connected and limited.

[0010] As preferred, the cutter assembly comprises a connecting cutter and a connecting plug; the top surface of the connecting head is provided with the connecting cutter, the bottom surface of the connecting cutter is fixedly connected with the connecting plug, and the connecting plug is clamped and connected with the connecting slot. The connecting plug at the bottom of the connecting cutter is butt-jointed with the connecting slot on the connecting head, the clamping block is clamped with the clamping groove, and thus the connecting cutter and the connecting head are connected.

[0011] As preferred, the cutter assembly further comprises a connecting clamping block and a fixed bolt, the bottom surface of the connecting cutter is fixedly connected with four groups of connecting clamping blocks, the connecting clamping blocks are clamped and connected with the connecting clamping grooves, the fixed bolt is arranged on the top surface of the connecting cutter, and the fixed bolt is screw-connected with the mounting hole. The connecting cutter and the connecting head are fixedly installed by screwing the fixed bolt with the mounting hole, and the stability of the connecting cutter in the rotating process is ensured.

[0012] As preferred, the cooling assembly comprises a cooling pipeline, a water inlet pipe and a water outlet pipe; the inside of the main shaft body is provided with the cooling pipeline, the outer side of the main shaft body is fixedly connected with the water inlet pipe, the water inlet pipe and the cooling pipeline are mutually penetrated, the outer side of the main shaft body is fixedly connected with the water outlet pipe, and the water outlet pipe and the cooling pipeline are mutually penetrated. Cold water is input into the cooling pipeline through the water inlet pipe, the heat in the interior of the main shaft body is taken away by the flowing of the cold water in the cooling pipeline, and the taken-away cold water is discharged outside through the water outlet pipe. The temperature in the interior of the main shaft body is prevented from being too high to cause the deformation of the rotating shaft and affect the machining quality.

[0013] The utility model discloses the beneficial effect of:

[0014] 1、 through setting up the belt drive structure, utilize the belt drive mode through the pulley and drive the rotation of the rotating shaft, and the belt can play the role of buffering in the transmission process, can stably drive the rotation of the rotating shaft, reduces the vibration that the main shaft receives, and the cutter is connected with the rotating shaft through the setting connection structure, can make the cutter and the rotating shaft closely cooperate, ensure the stability of cutter when rotating;

[0015] 2、 utilize the pulley and drive power transmission, through the key and the key groove on the pulley and rotating shaft interpenetration transmission torque, thereby through the rotating shaft and drive the cutter and rotate, prevent the impurity in the cutting process through the sealing ring and enter the inside of the main shaft, through the butt joint of the connecting plug at the bottom of the connecting cutter and the connecting plug slot on the connecting head, make the connecting block and the connecting slot and clamping, thereby the connecting cutter and the connecting head are connected, and the fixed pin is inserted into the fixed hole, and the fixed pin passes the fixed hole that sets up on the connecting plug, thereby the connecting cutter and the connecting head are connected and limit, and the fixed bolt is connected with the mounting hole through the thread, thereby the connecting cutter and the connecting head are installed and fixed, ensure the stability of connecting cutter in the rotation process. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model discloses a kind of main shaft three-dimensional structure schematic diagram for supporting cutting tool, as shown in the figure:

[0017] Figure 2 The utility model discloses a kind of main shaft transmission assembly three-dimensional structure schematic diagram for supporting cutting tool, as shown in the figure:

[0018] Figure 3 The utility model discloses a kind of main shaft joint assembly three-dimensional structure schematic diagram for supporting cutting tool, as shown in the figure:

[0019] Figure 4 The utility model discloses a kind of main shaft cutter assembly three-dimensional structure schematic diagram for supporting cutting tool, as shown in the figure.

[0020] Fig. 1, main shaft body;201, rotating bearing;202, rotating shaft;203, pulley;204, key;205, sealing ring;301, connecting head;302, connecting slot;303, connecting slot;304, mounting hole;305, fixed hole;306, fixed pin;401, connecting cutter;402, connecting plug;403, connecting block;404, fixed bolt;501, cooling pipeline;502, water inlet pipe;503, water outlet pipe. DETAILED DESCRIPTION

[0021] The utility model is further explained in connection with the drawings and embodiments.

[0022] Please refer to Figures 1-4 The utility model provides a kind of embodiment: a main shaft for supporting cutting tool, including main shaft body 1, rotating bearing 201, rotating shaft 202, belt pulley 203, connecting head 301, connecting clamping groove 302, tool assembly and cooling assembly;The inner side of the main shaft body 1 is fixedly connected with rotating bearing 201, the inside of the rotating bearing 201 is fixedly connected with rotating shaft 202, the outer side of the rotating shaft 202 is installed with belt pulley 203, the top surface of the rotating shaft 202 is fixedly connected with connecting head 301, the top surface of the connecting head 301 is evenly provided with four groups of connecting clamping groove 302, the top surface of the connecting head 301 is provided with tool assembly, the inside of the main shaft body 1 is provided with cooling assembly.

[0023] Please refer to Figures 1-4 In the embodiment, the outer side of the rotating shaft 202 is provided with key 204, the key 204 is arranged on the inner side of belt pulley 203, the rotating shaft 202 is keyed with belt pulley 203, the top surface of the rotating bearing 201 is provided with sealing ring 205, the sealing ring 205 is arranged on the outer side of rotating shaft 202, the weight of rotating shaft 202 and tool is supported by rotating bearing 201, and larger radial force generated in cutting process is borne, power of rotation of belt pulley 203 is transmitted, key 204 is extruded with the key groove on belt pulley 203 and rotating shaft 202, so that torque is transmitted, so that tool is rotated by rotating shaft 202, impurities in cutting process are prevented from entering the inside of main shaft by sealing ring 205, the top surface of the connecting head 301 is provided with connecting slot 303, the top surface of the connecting head 301 is evenly provided with four groups of mounting hole 304, the side surface of the connecting head 301 is provided with fixed insertion hole 305, the tool is docked and engaged by connecting slot 303 on connecting head 301, so as to be connected and limited by mounting hole 304, the fixed insertion hole 305 and connecting slot 303 are mutually penetrated, the inside of the connecting head 301 is provided with fixed insertion bolt 306, the fixed insertion bolt 306 is engaged and connected with the inner side of fixed insertion hole 305, the fixed insertion bolt 306 is inserted into fixed insertion hole 305, so that the fixed insertion bolt 306 passes through the fixed hole on connecting plug 402, so as to connect and limit connecting tool 401 and connecting head 301.

[0024] Please refer to Figures 1-4In the embodiment, the tool assembly comprises the connecting tool 401 and the connecting plug 402; the top surface of the connecting head 301 is provided with the connecting tool 401, the bottom surface of the connecting tool 401 is fixedly connected with the connecting plug 402, the connecting plug 402 is clamped and connected with the connecting slot 303, the connecting block 403 is clamped and connected with the connecting slot 302 by connecting the connecting plug 402 at the bottom of the connecting tool 401 with the connecting slot 303 on the connecting head 301, so that the connecting tool 401 is connected with the connecting head 301, the tool assembly further comprises the connecting block 403 and the fixing bolt 404, the bottom surface of the connecting tool 401 is fixedly connected with four groups of connecting blocks 403, the connecting block 403 is clamped and connected with the connecting slot 302, the fixing bolt 404 is arranged on the top surface of the connecting tool 401, and the fixing bolt 404 is screw-connected with the mounting hole 304, so that the connecting tool 401 is fixedly installed with the connecting head 301, and the stability of the connecting tool 401 in the rotating process is ensured; the cooling assembly comprises the cooling pipeline 501, the water inlet pipe 502 and the water outlet pipe 503; the inside of the main shaft body 1 is provided with the cooling pipeline 501, the outside of the main shaft body 1 is fixedly connected with the water inlet pipe 502, the water inlet pipe 502 and the cooling pipeline 501 are mutually penetrated, the outside of the main shaft body 1 is fixedly connected with the water outlet pipe 503, the water outlet pipe 503 and the cooling pipeline 501 are mutually penetrated, cold water is input into the cooling pipeline 501 through the water inlet pipe 502, the heat in the inside of the main shaft body 1 is taken away by the flowing of the cold water in the cooling pipeline 501, and the device is discharged outside through the water outlet pipe 503, so that the temperature in the inside of the main shaft body 1 is prevented from being too high to cause the deformation of the rotating shaft 202 and affect the machining quality.

[0025] When working, the rotating bearing 201 supports the weight of the rotating shaft 202 and the tool, bears the large radial force generated in the cutting process, the power rotating through the belt pulley 203 is transmitted, the torque is transmitted through the flat key 204 and the key grooves on the belt pulley 203 and the rotating shaft 202, so that the tool is rotated through the rotating shaft 202, and the sealing ring 205 prevents impurities in the cutting process from entering the inside of the main shaft;

[0026] The connecting plug 402 at the bottom of the connecting tool 401 is connected with the connecting slot 303 on the connecting head 301, the connecting block 403 is clamped and connected with the connecting slot 302, so that the connecting tool 401 is connected with the connecting head 301;

[0027] The fixing plug 306 is inserted into the fixing hole 305, the fixing plug 306 passes through the fixing hole arranged on the connecting plug 402, so that the connecting tool 401 is connected with the connecting head 301 and is limited;

[0028] The connecting tool 401 is fixedly installed with the connecting head 301 by screwing the fixing bolt 404 with the mounting hole 304, so that the stability of the connecting tool 401 during rotation is ensured.

[0029] The cooling water is input into the cooling pipeline 501 through the water inlet pipe 502, the heat inside the main shaft body 1 is taken away by the flowing of the cooling water inside the cooling pipeline 501, and the cooling water is discharged outside through the water outlet pipe 503, so that the temperature inside the main shaft body 1 is prevented from being too high to cause the deformation of the rotating shaft 202 and affect the machining quality.

[0030] Through the above steps, the main shaft body 1 provides support for the whole device, provides installation reference and rotating support for the tool, the rotating bearing 201 provides support for the weight of the rotating shaft 202, the belt pulley 203 transmits the rotating power, the connecting tool assembly is quickly clamped and connected with the device through the connecting clamping groove 302 on the connecting head 301, the connection between the tool and the rotating shaft 202 is more firm, the stability of the tool assembly during rotation is ensured, the temperature of the main shaft is reduced during the rotation of the main shaft, and the deformation of the main shaft caused by the too high temperature of the main shaft is avoided, and the machining precision is affected.

[0031] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by the person skilled in the art without departing from the purpose of the utility model.

Claims

1. A spindle for supporting a cutting tool, characterized in that: The assembly includes a spindle body (1), a rotating bearing (201), a rotating shaft (202), a pulley (203), a connector (301), a connecting slot (302), a tool assembly, and a cooling assembly. The rotating bearing (201) is fixedly connected to the inner side of the spindle body (1), the rotating shaft (202) is fixedly connected inside the rotating bearing (201), the pulley (203) is installed on the outer side of the rotating shaft (202), the connector (301) is fixedly connected to the top surface of the rotating shaft (202), four sets of connecting slots (302) are evenly opened on the top surface of the connector (301), the tool assembly is provided on the top surface of the connector (301), and the cooling assembly is provided inside the spindle body (1).

2. A spindle for supporting a cutting tool according to claim 1, characterized in that: A flat key (204) is provided on the outer side of the rotating shaft (202), the flat key (204) is provided on the inner side of the pulley (203), the rotating shaft (202) is keyed to the pulley (203), and a sealing ring (205) is provided on the top surface of the rotating bearing (201), the sealing ring (205) is provided on the outer side of the rotating shaft (202).

3. A spindle for supporting a cutting tool according to claim 1, characterized in that: The connector (301) has a connection slot (303) on its top surface, four sets of mounting holes (304) evenly distributed on its top surface, and a fixing insertion hole (305) on its side surface.

4. A spindle for supporting a cutting tool according to claim 3, characterized in that: The fixed socket (305) and the connecting slot (303) are interconnected. The connector (301) is provided with a fixed pin (306) inside, and the fixed pin (306) is engaged with the inside of the fixed socket (305).

5. A spindle for supporting a cutting tool according to claim 4, characterized in that: The tool assembly includes a connecting tool (401) and a connecting plug (402); the connecting tool (401) is provided on the top surface of the connector (301), and the connecting plug (402) is fixedly connected to the bottom surface of the connecting tool (401), and the connecting plug (402) is engaged with the connecting slot (303).

6. A spindle for supporting a cutting tool according to claim 5, characterized in that: The tool assembly also includes connecting blocks (403) and fixing bolts (404). Four sets of connecting blocks (403) are fixedly connected to the bottom surface of the connecting tool (401). The connecting blocks (403) are engaged with the connecting slots (302). The fixing bolts (404) are located on the top surface of the connecting tool (401) and are threadedly connected to the mounting holes (304).

7. A spindle for supporting a cutting tool according to claim 1, characterized in that: The cooling assembly includes a cooling pipe (501), a water inlet pipe (502), and a water outlet pipe (503); the main spindle body (1) has a cooling pipe (501) inside, the main spindle body (1) is fixedly connected to the outside of the main spindle body (1), the water inlet pipe (502) and the cooling pipe (501) are interconnected, the main spindle body (1) is fixedly connected to the outside of the main spindle body (1), and the water outlet pipe (503) and the cooling pipe (501) are interconnected.

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