Circular sawing machine with center hole punching and chamfering functions

Abstract

The utility model relates to the technical field of circular sawing machines, in particular to a circular sawing machine with center hole drilling and chamfering functions, which comprises a rack, a cutting table, a circular saw cutting mechanism, a clamping and fixing mechanism and a drilling mechanism, the cutting table is fixed on the rack and used for supporting a to-be-processed bar, and the drilling mechanism comprises a main shaft seat and a movable driving assembly. The main shaft seat is rotatably provided with a main shaft, one end of the main shaft is provided with a cutter sleeve, a center drill is fixed on the cutter sleeve, the main shaft seat is provided with a first rotation driving assembly used for driving the main shaft to rotate, and the moving driving assembly is fixed on the cutting table and connected with the main shaft seat to drive the main shaft seat to reciprocate in the X-axis direction, the Y-axis direction and the Z-axis direction. The clamping and fixing mechanism is fixed to the cutting table and used for clamping and fixing a to-be-machined bar, the circular saw cutting mechanism is located at one end of the cutting table and connected with the rack and used for cutting the to-be-machined bar, the functions of cutting, center hole drilling and chamfering are integrated, and the operation process and equipment configuration are remarkably simplified.

Description

Technical Field

[0001] The present application relates to the technical field of circular sawing machines. More specifically, it relates to a circular sawing machine with the functions of center hole punching and chamfering. Background Art

[0002] A circular sawing machine is a mechanical device used for cutting various materials (such as wood, metal bars, etc.). Its main components include an electric motor, a saw blade, a cutting table, and a safety guard, etc. The circular sawing machine usually cuts by rotating the saw blade and can adjust the cutting depth and angle according to different requirements. In the processing of metal bars, when using a circular sawing machine for cutting, the long bar-shaped material is usually cut into several circular blocks, and the obtained circular blocks are used for processing to form products. In the requirements of some products, after the bar is cut into circular blocks, it is also necessary to punch a center hole in the circular block. Traditional circular sawing machines can usually only perform planar cutting, and punching a center hole in a circular block often requires the use of additional drilling equipment or multiple devices, increasing the operation complexity and cost. Summary of the Utility Model

[0003] In order to solve the problem that traditional circular sawing machines can usually only perform planar cutting, and punching holes in circular blocks often requires the use of additional drilling equipment or multiple devices, increasing the operation complexity and cost, the present application provides a circular sawing machine with the functions of center hole punching and chamfering.

[0004] A circular sawing machine with the functions of center hole punching and chamfering includes a machine frame, a cutting table, a circular saw cutting mechanism, a clamping and fixing mechanism, and a drilling mechanism. The cutting table is fixed on the machine frame for supporting the bar to be processed. The drilling mechanism includes a spindle seat and a moving drive assembly. A spindle is rotatably arranged on the spindle seat. A tool sleeve is arranged at one end of the spindle, and a center drill is fixed on the tool sleeve. A first rotation drive assembly for driving the spindle to rotate is installed on the spindle seat. The moving drive assembly is fixed on the cutting table and is connected to the spindle seat to drive the spindle seat to reciprocate in three directions of the X, Y, and Z axes. The clamping and fixing mechanism is fixed on the cutting table for clamping and fixing the bar to be processed so that the spindle is fixed at a fixed position on the cutting table. The circular saw cutting mechanism is located at one end of the cutting table and is connected to the machine frame for cutting the bar to be processed.

[0005] Preferably, the moving drive assembly includes a connecting seat, an X-axis linear drive, a Y-axis linear drive, and a Z-axis linear drive. The connecting seat is fixed to one side wall of the cutting table. The Y-axis linear drive is fixed to the connecting seat. The Y-axis linear drive is connected to the X-axis linear drive to drive the X-axis linear drive to reciprocate along the Y-axis direction. The X-axis linear drive is connected to the Z-axis linear drive to drive the Z-axis linear drive to reciprocate along the X-axis direction. The Z-axis linear drive is connected to the spindle seat to drive the spindle seat to reciprocate along the Z-axis direction. The spindle is parallel to the Y-axis.

[0006] Preferably, a first through groove extending along the Y-axis direction and penetrating the cutting table itself is recessed on the top surface of the cutting table. The clamping and fixing mechanism includes a first oil cylinder and a first side pressing block. A first sliding groove matching the size of the first side pressing block is recessed on one side wall of the first through groove. The first side pressing block is movably installed in the first sliding groove. The first oil cylinder is fixed to the cutting table, and the telescopic shaft of the first oil cylinder penetrates into the first sliding groove and is connected to the first side pressing block to drive the first side pressing block to move away from or close to the other side wall of the first through groove.

[0007] Preferably, the clamping and fixing mechanism further includes a mounting seat, a second oil cylinder, and an upper pressing block. The mounting seat is fixed to the top surface of the cutting table. The mounting seat is provided with a second sliding groove matching the size of the upper pressing block. The second sliding groove is located above the first through groove and communicates with the first through groove. The upper pressing block is movably installed in the second sliding groove. The second oil cylinder is fixed to the mounting seat, and the telescopic shaft of the second oil cylinder penetrates into the second sliding groove and is connected to the upper pressing block to drive the upper pressing block to move away from or close to the bottom surface of the first through groove.

[0008] Preferably, the circular saw cutting mechanism includes a sliding table, a gearbox, a circular saw blade, a second rotation drive assembly, and a propulsion assembly. The sliding table is slidably connected to the machine frame. The gearbox and the first rotation drive assembly are both fixed to the sliding table. The circular saw blade is connected to the gearbox. The second rotation drive assembly is connected to the gearbox to drive the gear shaft inside the gearbox to rotate, so that the circular saw blade rotates. The propulsion assembly is connected to the sliding table to drive the sliding table to reciprocate along the X-axis direction to push the circular saw blade towards the workpiece to be processed and return it.

[0009] Preferably, it further includes a feeding mechanism. The feeding mechanism includes a linear feeding module and a support platform arranged on the piston of the linear feeding module. The linear feeding module is located on the side of the cutting table away from the drilling mechanism, and the linear feeding module is driven parallel to the Y-axis to reciprocate the support platform in the Y-axis direction. A second through groove extending along the Y-axis direction and penetrating itself is recessed on the top surface of the support platform. The second through groove is aligned and communicated with the first through groove. A third oil cylinder is fixed on one side wall of the support platform. The telescopic shaft of the third oil cylinder penetrates through one side wall of the second through groove and enters the second through groove. A second side pressing block is fixed at the end of the telescopic shaft of the third oil cylinder. The second side pressing block is located in the second through groove. The third oil cylinder drives the second side pressing block to move towards or away from the other side wall of the second through groove.

[0010] The beneficial technical effects of this application are as follows: The bar stock to be processed is transported to the cutting table. The bar stock to be processed is clamped and fixed by the clamping and fixing mechanism so that the bar stock to be processed is parallel to the main shaft and accurately fixed at the fixed position of the cutting table, which is convenient for the circular saw cutting mechanism to accurately cut the bar stock to be processed to obtain circular blocks and is convenient for the drilling mechanism to position the drilling position on the bar stock to be processed. The main shaft seat is driven by the moving drive assembly to reciprocate in the three directions of the X, Y, and Z axes, so as to move the center drill to the position corresponding to the end face of the bar stock to be processed and move to the position corresponding to the center point of the bar stock to be processed and realize drilling into the bar stock to be processed from the center point. The first rotation drive assembly drives the main shaft to rotate and drives the center drill to rotate to realize drilling. The functions of cutting, punching center holes, and chamfering are integrated into one, significantly simplifying the operation process and equipment configuration, saving space, reducing equipment costs, and improving work efficiency. Description of the Drawings

[0011] Figure 1 It is a schematic structural diagram of a circular sawing machine with the functions of punching center holes and chamfering according to this embodiment.

[0012] Figure 2 It is another angle schematic diagram of a circular sawing machine with the functions of punching center holes and chamfering according to this embodiment.

[0013] Figure 3 It is a schematic structural diagram of the drilling mechanism according to this embodiment.

[0014] Reference numerals: 1, frame; 2, cutting table; 21, first through groove; 22, first sliding groove; 23, avoidance groove; 3, circular saw cutting mechanism; 31, sliding table; 32, gearbox; 33, circular saw blade; 34, second rotation driving assembly; 35, propulsion assembly; 4, clamping and fixing mechanism; 41, first oil cylinder; 42, first side pressing block; 43, mounting seat; 431, second sliding groove; 44, second oil cylinder; 45, upper pressing block; 5, drilling mechanism; 51, spindle seat; 511, spindle; 512, tool sleeve; 513, center drill; 514, first rotation driving assembly; 515, disc; 516, external circular chamfering tool; 52, moving driving assembly; 521, connecting seat; 522, X-axis linear driving member; 523, Y-axis linear driving member; 524, Z-axis linear driving member; 6, feeding mechanism; 61, feeding linear module; 62, support table; 621, second through groove; 622, third oil cylinder; 623, second side pressing block. Detailed implementation manners

[0015] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application.

[0016] Refer to Figures 1 - 3, A circular sawing machine with the functions of drilling a center hole and chamfering, comprising a machine frame 1, a cutting table 2, a circular saw cutting mechanism 3, a clamping and fixing mechanism 4, a drilling mechanism 5 and a feeding mechanism 6. The cutting table 2 is fixed on the machine frame 1. The top surface of the cutting table 2 is recessed with a first through groove 21 extending along the Y-axis direction and penetrating itself. The drilling mechanism 5 includes a main shaft seat 51 and a moving drive assembly 52. The moving drive assembly 52 is fixed on one side wall of the cutting table 2 and is located on one side of the port of the first through groove 21. The main shaft seat 51 is connected to the moving drive assembly 52 and is reciprocally moved in the three directions of the X, Y, and Z axes by the moving drive assembly 52. A main shaft 511 is rotatably arranged on the main shaft seat 51. The main shaft 511 is parallel to the Y-axis. One end of the main shaft 511 facing the first through groove 21 is provided with a tool sleeve 512. A center drill 513 is fixed on the tool sleeve 512. The front end of the center drill 513 has a taper of 60 degrees of Morse. A first rotation drive assembly 514 is installed on the main shaft seat 51. The first rotation drive assembly 514 is connected to the main shaft 511 to drive the main shaft 511 to rotate. The first rotation drive assembly 514 is preferably a servo motor and a transmission structure connected to the servo motor. The transmission structure is preferably a belt and a pulley. By driving the main shaft seat 51 to reciprocally move in the three directions of the X, Y, and Z axes by the moving drive assembly 52, the feeding mechanism 6 is located on the side of the cutting table 2 away from the drilling mechanism 5 and is connected to the machine frame 1 for conveying the workpiece to be processed into the first through groove 21 and pushing the workpiece in the first through groove 21 in the direction of the drilling mechanism 5. The circular saw cutting mechanism 3 is located on one side of the cutting table 2 and is connected to the machine frame 1 for cutting the workpiece to be processed in the first through groove 21 to obtain a circular block. The clamping and fixing mechanism 4 is fixed on the cutting table 2 and is communicated with the first through groove 21 for clamping and fixing the workpiece to be processed in the first through groove 21 so that the workpiece to be processed is fixed in the first through groove 21 and the position is accurate, which is convenient for the drilling mechanism 5 to locate the center point of the workpiece to be processed. An outer disc 515 is also fixed on the outer wall of the end of the main shaft 511. The center of the outer disc 515 is on the same straight line as the axis of the main shaft 511. An opening is provided in the middle of the outer disc 515 for avoiding the tool sleeve 512 and the center drill 513. An outer circle chamfering tool 516 (not shown in the figure) is fixed on the side of the outer disc 515 facing the center drill 513.

[0017] Refer to Figure 1 and Figure 2, the clamping and fixing mechanism 4 includes a first oil cylinder 41, a first side pressing block 42, a mounting seat 43, a second oil cylinder 44, and an upper pressing block 45. A first sliding groove 22 matching the size of the first side pressing block 42 is recessed on one side wall of the first through groove 21. The first side pressing block 42 is movably installed in the first sliding groove 22. The first oil cylinder 41 is fixed on the cutting table 2 and the telescopic shaft of the first oil cylinder 41 penetrates into the first sliding groove 22 and is connected to the first side pressing block 42 to drive the first side pressing block 42 to move away from or close to the other side wall of the first through groove 21. When the first side pressing block 42 moves towards the other side wall close to the first through groove 21, the first side pressing block 42 extends out of the first sliding groove 22 and presses against one side wall of the workpiece bar to be processed in the first through groove 21, so that the other side wall of the workpiece bar to be processed abuts against the side wall of the first through groove 21, thereby fixing the workpiece bar to be processed and facilitating the centers of several workpiece bars of the same specification inserted into the first through groove 21 to be kept on the same straight line, realizing the positioning of the workpiece bar to be processed in the first through groove 21 and facilitating the drilling mechanism 5 to position the drilling position of the workpiece bar to be processed. When the first side pressing block 42 moves towards the other side wall close to the first through groove 21, the fixing of the workpiece bar to be processed is released. The mounting seat 43 is fixed on the top surface of the cutting table 2 and the mounting seat 43 is provided with a second sliding groove 431 matching the size of the upper pressing block 45. The second sliding groove 431 is located above the first through groove 21 and communicates with the first through groove 21. The upper pressing block 45 is movably installed in the second sliding groove 431. The second oil cylinder 44 is fixed on the mounting seat 43 and the telescopic shaft of the second oil cylinder 44 penetrates into the second sliding groove 431 and is connected to the upper pressing block 45 to drive the upper pressing block 45 to move away from or close to the bottom surface of the first through groove 21. When the upper pressing block 45 moves towards the bottom surface of the first through groove 21, the upper pressing block 45 presses against the workpiece bar to be processed in the first through groove 21, further fixing the workpiece bar to be processed, so that the workpiece bar to be processed is less likely to move during cutting and drilling, reducing the occurrence of processing errors. When the upper pressing block 45 moves away from the bottom surface of the first through groove 21, the fixing of the workpiece bar to be processed is released.

[0018] Refer to Figure 1 and Figure 3, the moving drive assembly 52 includes a connecting seat 521, an X-axis linear drive 522, a Y-axis linear drive 523, and a Z-axis linear drive 524. The connecting seat 521 is fixed to a side wall of the cutting table 2. The Y-axis linear drive 523 is fixed to the connecting seat 521. The piston of the Y-axis linear drive 523 is connected to the X-axis linear drive 522 to drive the X-axis linear drive 522 to reciprocate in the Y-axis direction. The X-axis linear drive 522 is connected to the Z-axis linear drive 524 to drive the Z-axis linear drive 524 to reciprocate in the X-axis direction. The Z-axis linear drive 524 is connected to the spindle seat 51 to drive the spindle seat 51 to reciprocate in the Z-axis direction. The X-axis linear drive 522, the Y-axis linear drive 523, and the Z-axis linear drive 524 are all combinations of a servo motor, a ball screw, a linear guide, and a fixed seat. Specifically, the fixed seat is threadedly connected to the ball screw, the linear guide is arranged on the fixed seat, the servo motor is connected to the ball screw to drive the ball screw to rotate to realize the reciprocating movement of the mounting seat along the length direction of the ball screw. The servo motor is equipped with a planetary reducer. In the Y-axis linear drive 523, the fixed seat is slidably connected to the connecting seat 521 through the linear guide, the servo motor is fixed on the connecting seat 521, and both the linear guide and the ball screw are parallel to the Y-axis. In the X-axis linear drive 522, its fixed seat is slidably connected to the fixed seat in the Y-axis linear drive 523 through the linear guide, its servo motor is fixed on the fixed seat in the Y-axis linear drive 523, and both its linear guide and the ball screw are parallel to the X-axis. In the Z-axis linear drive 523, its fixed seat is slidably connected to the fixed seat in the X-axis linear drive 522 through the linear guide, its servo motor is fixed on the fixed seat in the X-axis linear drive 522, and both its linear guide and the ball screw are parallel to the Z-axis.

[0019] The X-axis linear drive 522 drives the Z-axis linear drive 524 to reciprocate along the X-axis direction, driving the spindle seat 51 to reciprocate along the X-axis direction, so that the spindle 511 moves to the position opposite to the port of the first through slot 21, and the center point of the drilling position of the workpiece to be machined and the center point of the center drill 513 are on the same Z-axis. When the spindle 511 is not aligned with the port of the first through slot 21, it avoids the cutting and enables the circular block obtained by cutting to be discharged. Then, the Z-axis linear drive 524 drives the spindle seat 51 to reciprocate along the Z-axis direction, so that the center point of the drilling position of the workpiece to be machined and the center point of the center drill 513 coincide. Finally, the Y-axis linear drive 523 drives the X-axis linear drive 522 to reciprocate along the Y-axis direction. The reciprocating movement of the X-axis linear drive 522 along the Y-axis direction drives the Z-axis linear drive 524 and the spindle seat 51 to reciprocate along the Y-axis direction, so that the center drill 513 penetrates into the first through slot 21 and drills the axial center point of the workpiece to be machined. During the drilling process, the spindle 511 rotates to drive the disc 515 to rotate, and the rotation of the disc 515 drives the external circular chamfering tool 516 to rotate around the center of the disc 515, so that the external circular chamfering tool 516 chamfers when it contacts the outer peripheral edge of the workpiece to be machined.

[0020] Refer to Figure 1 , the circular saw cutting mechanism 3 includes a slide table 31, a gearbox 32, a circular saw blade 33, a second rotation drive assembly 34, and a propulsion assembly 35. The slide table 31 is located at one end of the cutting table 2 and is slidably connected to the frame 1. The gearbox 32 and the first rotation drive assembly 514 are both fixed on the slide table 31. The circular saw blade 33 is connected to the gearbox 32. The second rotation drive assembly 34 is connected to the gearbox 32 to drive the gear shaft inside the gearbox 32 to rotate, so that the circular saw blade 33 rotates. When the circular saw blade 33 rotates and contacts the workpiece to be machined, the workpiece to be machined is cut off. The second rotation drive assembly 34 is preferably a servo motor and a transmission structure connected to the servo motor. The transmission structure is preferably a belt and a pulley. The propulsion assembly 35 is fixed on the frame 1 and is connected to the slide table 31 to drive the slide table 31 to reciprocate along the Y-axis direction to push the circular saw blade 33 towards the workpiece to be machined and return. The propulsion assembly 35 is preferably a servo motor and a combination of a lead screw and a threaded sleeve block. Specifically, the threaded sleeve block is threadedly connected to the lead screw, and the servo slide table 31 is fixedly connected to the threaded sleeve block. The servo motor drives the lead screw to rotate, so that the slide table 31 reciprocates along the length direction of the lead screw. The lead screw is parallel to the X-axis. An avoidance groove 23 penetrating the first through slot 21 is opened on the end wall of the cutting table 2 close to the slide table 31. Through the avoidance of the avoidance groove 23, the circular saw blade 33 is advanced into the first through slot 21 to cut the workpiece to be machined.

[0021] Refer to Figure 1 and Figure 2, the feeding mechanism 6 includes a feeding linear module 61 and a support platform 62 disposed on the piston of the feeding linear module 61. The feeding linear module 61 is located on one side of the cutting table 2 and the pigment drilling mechanism 5, and the feeding linear module 61 is driven parallel to the Y-axis to reciprocate the support platform 62 along the Y-axis direction. The top surface of the support platform 62 is recessed with a second through groove 621 that extends along the Y-axis direction and penetrates itself. The second through groove 621 is aligned and communicated with the first through groove 21. A third oil cylinder 622 is fixed to one side wall of the support platform 62. The telescopic shaft of the third oil cylinder 622 penetrates through one side wall of the second through groove 621 and enters the second through groove 621. A second side pressing block 623 is fixed to the telescopic shaft of the third oil cylinder 622. The second side pressing block 623 is located in the second through groove 621. The third oil cylinder 622 drives the second side pressing block 623 to move towards or away from the other side wall of the second through groove 621. Place the workpiece to be processed into the second through groove 621. By moving the second side pressing block 623 towards the other side wall of the second through groove 621, the second side pressing block 623 presses against one side wall of the workpiece to be processed, causing the other side wall of the workpiece to be processed to abut against the side wall of the second through groove 621, thereby clamping and fixing the workpiece to be processed in the second through groove 621. By moving the second side pressing block 623 away from the other side wall of the second through groove 621, the fixation of the workpiece to be processed is released. By driving the support platform 62 towards the cutting table 2 by the feeding linear module 61, the workpiece to be processed fixed in the second through groove 621 is inserted into the first through groove 21. And when the workpiece to be processed is fixed by the clamping and fixing mechanism 4 in the first through groove 21, the feeding linear module 61 drives the support platform 62 to move a certain distance away from the cutting table 2, and then the third oil cylinder 622 drives the second side pressing block 623 to clamp and fix the workpiece to be processed again. Then the clamping and fixing mechanism 4 releases the fixation of the workpiece to be processed. By driving the support platform 62 towards the cutting table 2 by the feeding linear module 61, the workpiece to be processed is advanced in the first through groove 21 towards the direction of the drilling mechanism 5, facilitating the drilling mechanism 5 to drill all the round blocks obtained by cutting the workpiece to be processed.

[0022] The implementation principle of the circular saw machine with the function of drilling a center hole and chamfering in the present application is as follows: the bar to be processed is loaded into the first through-groove 21, the third oil cylinder 622 drives the second side pressure block 623 to fix the bar to be processed, and the support table 62 is driven by the feeding linear module 61 to move in the direction of the cutting table 2 to realize the insertion of the bar to be processed into the first through-groove 21 and to the action position of the drilling mechanism 5 and the circular saw cutting mechanism 3, the first oil cylinder 41 drives the first side pressure block 42 to move and press the bar to be processed, the second oil cylinder 44 drives the upper pressure block 45 to press the bar to be processed and accurately fix the bar to be processed at a fixed position in the first through-groove 21, the first rotation drive component 514 drives the main shaft 511 to rotate and drive the center drill 513 to rotate, and the Z-axis linear drive component 524 is driven by the X-axis linear drive component 522 to drive the main shaft 511 to move so that the main shaft 511 is aligned with the position of the port of the first through-groove 21 and the drilling position of the bar to be processed is centered. The center point and the center point of the center drill 513 are on the same Z-axis axis, and then the Z-axis linear drive component 524 drives the spindle seat 51 to move so that the axis point of the bar to be processed and the center point of the center drill 513 coincide with each other, and finally the Y-axis linear drive component 523 drives the X-axis linear drive component 522 to move toward the first through-slot 21 so that the center drill 513 penetrates into the first through-slot 21 and taps the axis of the bar to be processed, and in the process of tapping, the outer circle chamfering cutter 516 is driven to rotate around the center of the disc 515 through the rotation of the disc 515. With the continuous tapping, the outer circle chamfering cutter 516 contacts the outer peripheral edge of the bar to be processed to chamfer the outer periphery of the bar to be processed; after the tapping is completed, the Y-axis linear drive component 523 drives the X-axis linear drive component 522 to return, and the X-axis linear drive component 522 drives the Z-axis linear drive component 524 to return to achieve the avoidance of the spindle seat 51 to avoid the first through-slot 21 port to cut.

[0023] The second rotation drive assembly 34 is connected to the transmission 32 to drive the rotation of the gear shaft inside the transmission 32, causing the circular saw blade 33 to rotate. The propulsion assembly 35 drives the movement of the sliding table 31 to push the circular saw blade 33 towards the workpiece to be processed, cutting the workpiece to be processed. The drilled part of the workpiece to be processed is cut off to obtain a circular block with a hole. By driving the second side pressing block 623 to release the fixation of the workpiece to be processed by the third oil cylinder 622, after the feeding linear module 61 drives the support table 62 to move a certain distance away from the cutting table 2, the third oil cylinder 622 then drives the second side pressing block 623 to fix the workpiece to be processed. The first oil cylinder 41 drives the movement of the first side pressing block 42 and the second oil cylinder 44 drives the movement of the upper pressing block 45 to release the fixation of the workpiece to be processed. The feeding linear module 61 drives the support table 62 to move towards the cutting table 2, causing the workpiece to be processed to move to the corresponding position of the first through slot 21 again. Then, the first oil cylinder 41 drives the movement of the first side pressing block 42 and the second oil cylinder 44 drives the movement of the upper pressing block 45 to fix the workpiece to be processed, and the drilling mechanism 5 drills again. Repeat the above operations for tapping so that all the circular blocks obtained by cutting the workpiece to be processed are drilled.

[0024] The functions of cutting, drilling center holes, and chamfering in this application are integrated into one, significantly simplifying the operation process and equipment configuration, saving space, reducing equipment costs, and improving work efficiency.

[0025] Although the embodiments of the present application 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 principles and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A circular saw machine with center hole drilling and chamfering functions, characterized in that: It includes a frame, a cutting table, a circular saw cutting mechanism, a clamping and fixing mechanism, and a drilling mechanism. The cutting table is fixed on the frame to support the rod to be processed. The drilling mechanism includes a spindle seat and a movable driving assembly. The spindle seat is rotatably provided with a spindle, one end of the spindle is provided with a tool sleeve, and a center drill is fixed on the tool sleeve. A first rotating driving assembly for driving the spindle to rotate is installed on the spindle seat. The movable driving assembly is fixed on the cutting table and connected to the spindle seat to drive the spindle seat to reciprocate in the three directions of X, Y, and Z axes. The clamping and fixing mechanism is fixed on the cutting table to clamp and fix the rod to be processed so that the spindle is fixed to the fixed position of the cutting table. The circular saw cutting mechanism is located at one end of the cutting table and is connected to the frame to cut the rod to be processed.

2. A circular saw machine with center hole drilling and chamfering functions according to claim 1, characterized in that: The mobile driving assembly includes a connecting seat, an X-axis linear driving member, a Y-axis linear driving member, and a Z-axis linear driving member. The connecting seat is fixed on a side wall of the cutting table, the Y-axis linear driving member is fixed on the connecting seat, the Y-axis linear driving member is connected to the X-axis linear driving member to drive the X-axis linear driving member to reciprocate along the Y-axis direction, the X-axis linear driving member is connected to the Z-axis linear driving member to drive the Z-axis linear driving member to reciprocate along the X-axis direction, the Z-axis linear driving member is connected to the spindle seat to drive the spindle seat to reciprocate along the Z-axis direction, and the spindle is parallel to the Y-axis.

3. A circular saw machine with center hole drilling and chamfering functions according to claim 1, characterized in that: The top surface of the cutting table is recessed with a first through groove extending along the Y-axis direction and passing through the cutting table. The clamping and fixing mechanism includes a first oil cylinder and a first side pressure block. A first slide groove matching the size of the first side pressure block is recessed on one side wall of the first through groove. The first side pressure block is movably installed in the first slide groove. The first oil cylinder is fixed on the cutting table and the telescopic shaft of the first oil cylinder penetrates into the first slide groove and is connected to the first side pressure block to drive the first side pressure block to move away from or close to the other side wall of the first through groove.

4. A circular saw machine with center hole drilling and chamfering functions according to claim 3, characterized in that: The clamping and fixing mechanism also includes a mounting seat, a second oil cylinder, and an upper pressure block. The mounting seat is fixed to the top surface of the cutting table. The mounting seat is provided with a second slide groove matching the size of the upper pressure block. The second slide groove is located above the first through groove and connected to the first through groove. The upper pressure block is movably installed in the second slide groove. The second oil cylinder is fixed to the mounting seat and the telescopic shaft of the second oil cylinder penetrates into the second slide groove and is connected to the upper pressure block to drive the upper pressure block to move in a direction away from or close to the bottom surface of the first through groove.

5. The circular saw machine with center hole drilling and chamfering functions according to claim 3, characterized in that: The circular saw cutting mechanism includes a slide, a gearbox, a circular saw blade, a second rotation drive component, and a propulsion component. The slide is slidably connected to the frame, the gearbox and the first rotation drive component are fixed on the slide, the circular saw blade is connected to the gearbox, the second rotation drive component is connected to the gearbox to drive the gear shaft inside the gearbox to rotate so that the circular saw blade rotates, and the propulsion component is connected to the slide to drive the slide to reciprocate along the X-axis direction to push the circular saw blade toward and return it to the direction of the bar to be processed.

6. A circular saw machine with center hole drilling and chamfering functions according to claim 3, characterized in that: It also includes a feeding mechanism, which includes a feeding linear module and a support table arranged on a piston of the feeding linear module, the feeding linear module is located on a side of the cutting table away from the drilling mechanism, and the feeding linear module is parallel to the Y-axis and drives the support table to reciprocate along the Y-axis direction, the top surface of the support table is recessed with a second through groove extending along the Y-axis direction and penetrating itself, the second through groove is aligned with and connected to the first through groove, a third oil cylinder is fixed to one side wall of the support table, the telescopic shaft of the third oil cylinder penetrates through one side wall of the second through groove and enters into the second through groove, a second side pressure block is fixed to the end of the telescopic shaft of the third oil cylinder, the second side pressure block is located in the second through groove, and the third oil cylinder drives the second side pressure block to move toward or away from the other side wall of the second through groove.

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