Drilling machine with scrap iron cutting structure

Abstract

The drilling machine comprises the scrap iron cutting-off structure, a workbench and a drill bit installation base arranged on the workbench, the drill bit installation base is provided with a drill bit clamp, a drill bit is a twist drill, a spiral groove is formed in the circumferential face of the drill bit, and the scrap iron cutting-off structure comprises an annular cutter anvil and an annular blade with a downward cutting edge. The cutter anvil is connected with the lower ends of a plurality of hanging rods, the upper ends of the hanging rods are arranged on the drill bit clamp in a penetrating mode and provided with hanging blocks for preventing the hanging rods from falling off from the drill bit clamp, the annular blade is located over the annular cutter anvil, and the annular blade is connected to the drill bit clamp through a lifting structure. During drilling, the drill bit is arranged in the annular cutter anvil and the annular blade in a penetrating mode, and the annular cutter anvil is placed on the workbench. The drilling machine has the advantage that winding caused by too long scrap iron can be prevented, and the problem that drilling is interfered due to too long scrap iron when an existing drilling machine conducts drilling through a twist drill is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of drilling machines, in particular to a drilling machine provided with an iron chip cutting structure. Background Art

[0002] The drilling and milling machine can complete two different processes, drilling and milling, by replacing the head tool. For example, in the Chinese patent literature, a metal identification plate milling device disclosed with patent number CN202411524000.1 includes a workbench, a movable structure is installed on the workbench, a switching structure is installed on the movable structure, a disassembly structure is installed on the switching structure, a rotating structure is installed on the movable structure, a clamping structure is installed in the workbench, a lifting structure is installed in the workbench, and a cleaning structure is installed in the workbench; through the movable structure installed on the workbench, different positions of the metal identification plate can be milled, and at the same time, through the switching structure, the metal identification plate can be drilled after milling, the disassembly structure facilitates the replacement of the milling cutter and the drill bit, and at the same time, the rotating structure can automatically adjust the position of the switching structure.

[0003] The disadvantage of the prior art is that when a twist drill is used for drilling, the iron chips generated are long and easily entangled, thereby interfering with the drilling operation. Summary of the Invention

[0004] The present invention aims to provide a drilling machine with an iron chip cutting structure capable of preventing iron chips from being entangled due to excessive length, thereby solving the problem that the existing drilling machine may interfere with drilling when using a twist drill to drill holes due to excessive iron chips.

[0005] The above technical problems are solved by the following technical solutions: A drilling machine with an iron chip cutting structure, comprising a workbench and a drill mounting seat arranged on the workbench, the drill mounting seat being provided with a drill clamp, a drill rotating structure for driving the drill clamp to rotate, and a Z-axis guide mechanism for driving the drill clamp to lift and lower. The drill bit used for drilling is a twist drill, and a spiral groove is provided on the circumferential surface of the drill bit, characterized in that it also includes an iron chip cutting structure, the iron chip cutting structure comprising an annular anvil and an annular blade with the cutting edge facing downward, the anvil being connected to the lower ends of several hanging rods, the upper ends of the hanging rods being passed through the drill clamp and being provided with a hanging block for preventing the hanging rods from falling off the drill clamp, the annular blade being located directly above the annular anvil, and the annular blade being connected to the drill clamp by a lifting structure. When drilling, the drill bit is passed through the annular anvil and the annular blade, and the annular anvil is placed on the workbench. During drilling, as the drill bit descends, the annular anvil first contacts the workpiece, and then the drill bit continues to contact the workpiece to drill the hole. Wire-like iron chips generated during drilling are discharged from the spiral groove and scattered on the annular anvil. When the length of the iron chips reaches the set length, the lifting mechanism drives the annular blade to descend, and the annular blade cooperates with the annular anvil to cut the iron chips, thus preventing the iron chips from being too long and interfering with drilling.

[0006] Preferably, the machine also includes an X-axis guide mechanism and a Y-axis guide mechanism mounted on the workbench. The X-axis guide mechanism, the Y-axis guide mechanism, and the Z-axis guide mechanism are driven sequentially, with their guide lines perpendicular to each other. This allows the drill bit to move in three directions, while the workpiece remains in position while the drill bit moves to the desired hole location. This eliminates the need for multiple clamping of the workpiece due to displacement, reducing the positional errors between the drilled holes.

[0007] Preferably, the X-axis guide mechanism includes an X-axis guide rail and an X-axis linear drive assembly disposed on the workbench. An X-axis slider slides along the X-axis guide rail, and the X-axis linear drive assembly drives the X-axis slider to slide along the X-axis guide rail. This provides a specific technical solution for the X-axis guide mechanism, enabling reliable drive of the tool in the X-direction.

[0008] Preferably, the X-axis guide mechanism is provided in two sets on opposite sides of the workbench. The Y-axis guide mechanism includes a Y-axis guide rail and a Y-axis linear drive assembly that span the two sets of X-axis guide mechanisms. A Y-axis slider is slidably mounted on the Y-axis guide rail, and the Y-axis linear drive assembly drives the Y-axis slider to slide along the Y-axis guide rail. A specific technical solution for the Y-axis guide mechanism and a method for connecting the X-axis guide mechanism to the X-axis guide mechanism architecture are provided. This ensures the reliable placement of the Y-axis guide mechanism on the X-axis guide mechanism and the reliable drive of the drill clamp on the Y-axis.

[0009] Preferably, the Y-axis slider is L-shaped, and the Y-axis guide mechanism is provided with at least three groups of Y-axis guide rails distributed on its two sides and cooperates with the Y-axis slider. The Z-axis guide mechanism includes a Z-axis guide rail and a Z-axis linear drive assembly located on the longitudinal side of the Y-axis slider. A Z-axis slider is slidably provided on the Z-axis guide rail, and the Z-axis linear drive assembly drives the Z-axis slider to slide along the Z-axis guide rail. The drill bit rotation structure is provided on the Z-axis slider. The linear effect during sliding is good. A reliable setting between the Y-axis slide rail and the Y-axis slider is achieved, and at least three groups of Y-axis guide rails cooperate with the Y-axis slider to achieve a reliable setting of the Z-axis guide mechanism, thereby ensuring the reliability of the tool's Z-direction movement.

[0010] Preferably, when the annular anvil is suspended on the drill bit holder via the suspension block, the annular anvil extends downward beyond the drill bit, thereby preventing iron filings from being generated first and interfering with the placement of the annular anvil plate on the workpiece.

[0011] Preferably, the lifting structure includes a connecting ring, a plurality of lifting cylinders connecting the connecting ring to the drill clamp, and a plurality of suspension rods suspending the annular blade below the connecting ring. The drill bit is inserted into the connecting ring, and the lifting cylinders and suspension rods are distributed along the circumference of the connecting ring, thereby providing convenience when connecting the cylinders.

[0012] Preferably, a spiral groove is provided on the circumference of the drill bit, and the annular blade is provided with an upwardly opening annular suspension groove coaxial with the drill bit. A suspension block is provided at the lower end of the suspension rod, and the suspension block is located in the annular groove to suspend the annular blade. The annular blade is fixed to one end of a drive rod, and the other end of the drive rod is inserted into the spiral groove. When the annular blade cuts into iron chips, the rotation of the drill bit can drive the annular blade to rotate, thereby cutting the iron chips, thereby improving the reliability of the annular blade in cutting the iron chips.

[0013] Beneficial effect: It can cut off the iron chips formed by punching, and prevent them from being entangled and interfering with punching. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention when the chip cutting structure is hidden; Figure 2 yes Figure 1 A magnified schematic diagram of point A in the middle; Figure 3 It is a schematic diagram of the chip cutting structure; Figure 4 yes Figure 3 A local enlarged schematic diagram of point B.

[0015] In the figure: tool 1, workbench 2, X-axis guide mechanism 3, X-axis guide rail 31, X-axis slider 32, X-axis motor 33, X-axis screw 34; Y-axis guide mechanism 4, Y-axis guide rail 41, Y-axis slider 42, Y-axis motor 43, Y-axis screw 44, connecting frame 45, Z-axis guide mechanism 5, Z-axis guide rail 51, Z-axis slider 52, Z-axis motor 53, Z-axis screw 54; drive mechanism 6, drill clamp 7, tool drive motor 8, workpiece 9, Annular anvil 10, cutting edge 11, annular blade 12, hanging rod 13, hanging block 14, lifting structure 15, drill bit 16, workpiece 17, connecting ring 18, lifting cylinder 19, hanging rod 20, spiral groove 21, hanging block 22, driving rod 23. DETAILED DESCRIPTION

[0016] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0017] join Figure 1 and Figure 2 , a drilling machine with an iron chip cutting structure is used for milling and drilling the surface of a workpiece 9 with a vertical structure. Of course, it can also be used for workpieces of other shapes. The present invention includes a tool 1 and a workbench 2, and also includes an X-axis guide mechanism 3, a Y-axis guide mechanism 4 and a Z-axis guide mechanism 5 arranged on the workbench 2. The Z-axis guide mechanism 5 is provided with a driving mechanism 6 for driving the tool 1 to rotate. The Z-axis guide mechanism 5 is provided with a drill clamp 7. The tool 1 rotates to connect the drill clamp 7. The driving mechanism 6 is fixed to the drill clamp 7 and drives the tool 1 to rotate. The X-axis guide mechanism 3, the Y-axis guide mechanism 4 and the Z-axis guide mechanism 5 are driven in sequence and the guide lines of the three are perpendicular to each other. The drill clamp is connected to a structure for cutting iron chips.

[0018] The X-axis guide mechanism 3 includes an X-axis guide rail 31 and an X-axis linear drive assembly provided on the workbench 2. An X-axis slider 32 is slidably provided on the X-axis guide rail 31. The X-axis linear drive assembly drives the X-axis slider 32 to slide along the X-axis guide rail 31. Specifically, the X-axis linear drive assembly includes an X-axis motor 33 and an X-axis lead screw 34 driven to rotate by the X-axis motor 33. The X-axis lead screw 34 is engaged with the X-axis slider 32 via a transmission thread. The X-axis motor 33 drives the X-axis lead screw 34 to rotate forward and reverse to linearly adjust the position of the X-axis slider 32 on the X-axis guide rail 31.

[0019] Two groups of X-axis guide mechanisms 3 are provided on opposite sides of the workbench 2. The X-axis sliders 32 corresponding to the two groups of X-axis guide mechanisms 3 are arranged in parallel and relative to each other so that the line connecting the two X-axis sliders 32 is perpendicular to the X-axis guide rail 31. The Y-axis guide mechanism 4 includes a Y-axis guide rail 41 and a Y-axis linear drive assembly that spans the two groups of X-axis guide mechanisms 3. A Y-axis slider 42 is slidably provided on the Y-axis guide rail 41, and the Y-axis linear drive assembly drives the Y-axis slider 42 to slide along the Y-axis guide rail 41. Specifically, the Y-axis linear drive assembly includes a Y-axis motor 43 and a Y-axis screw 44 driven to rotate by the Y-axis motor 43. The Y-axis screw 44 and the Y-axis slider 42 are driven by a transmission thread. The Y-axis motor 43 drives the Y-axis screw 44 forward and reverse to linearly adjust the position of the Y-axis slider 42 on the Y-axis guide rail 41. The Y-axis drive assembly includes a connecting frame 45 with two X-axis sliders 32 fixedly connected at both ends. The cross-sectional shape of the connecting frame 45 is rectangular.

[0020] The Y-axis slider 42 has an L-shaped cross-section, and the Y-axis slider 42 is slidably connected to the two side surfaces of the connecting frame 45. The Y-axis guide mechanism 4 is provided with at least three groups of Y-axis guide rails 41 distributed on its two side surfaces and simultaneously cooperates with the Y-axis slider 42. Specifically, a group of Y-axis guide rails 41 is provided on the top surface of the connecting frame 45, and two groups of parallel Y-axis guide rails 41 are provided on one longitudinal side surface of the connecting frame 45. The Y-axis guide rails 41 are perpendicular to the side surface of the connecting frame 45 on which they are located, and the Y-axis slider 42 slidably connects the three groups of Y-axis guide rails 41. The Z-axis guide mechanism 5 includes a Z-axis guide rail 51 located on the longitudinal side surface of the Y-axis slider 42 and a Z-axis linear drive assembly. A Z-axis slider 52 is slidably provided on the Z-axis guide rail 51. The Z-axis linear drive assembly drives the Z-axis slider 52 to slide along the Z-axis guide rail 51. The drive mechanism 6 is provided on the Z-axis slider 52. Specifically, the Z-axis linear drive assembly includes a Z-axis motor 53 and a Z-axis screw 54, which is driven by the Z-axis motor 53. The Z-axis screw 54 engages with the Z-axis slider 52 via a transmission thread. The Z-axis motor 53 drives the Z-axis screw 54 in forward and reverse rotation to linearly adjust the position of the Z-axis slider 52 on the Z-axis guide rail 51. The tool drive motor 8 and drill clamp 7 corresponding to the tool 1 are mounted on the Z-axis slider 52. The tool 1 is rotatably mounted on the drill clamp 7 and is then driven by the tool drive motor 8.

[0021] As shown in the figure, workpiece 9 is shaped like a "U" and requires milling and drilling to complete its surface. During machining, workpiece 9 is first placed on worktable 2. Positioned using its built-in datum, it is then magnetically secured to the worktable 2. Tool 1 is positioned at the origin. With the origin as the center, worktable 2 holds the upper surface of workpiece 9 as the XY plane, forming an XYZ three-axis coordinate system. The X-, Y-, and Z-axis directions correspond to the X-axis guide mechanism 3, the Y-axis guide mechanism 4, and the Z-axis guide mechanism 5, respectively. CNC machining is performed using a PLC control circuit to determine the thickness of the milled workpiece 9 and the location of the holes.

[0022] See also Figure 3 and Figure 4 The chip cutting mechanism includes an annular anvil 10 and an annular blade 12 with a downward-facing cutting edge 11. The anvil is connected to the lower ends of several suspension rods 13. The upper ends of the suspension rods are mounted on the drill clamp 7 and equipped with suspension blocks 14 to prevent the suspension rods from falling off the drill clamp. The annular blade is located directly above the anvil. The annular blade is connected to the drill clamp via a lifting mechanism 15. During drilling, a drill bit 16 is inserted between the annular anvil and the annular blade. The annular anvil rests on a workpiece 17 on a workbench 2. During drilling, as the drill bit descends, the annular anvil first contacts the workpiece, then continues to contact the workpiece to drill the hole. The thread-like chips generated during drilling are discharged from the spiral groove and dispersed onto the annular anvil. When the chips reach a set length, the lifting mechanism drives the annular blade down, where it cooperates with the annular anvil to cut the chips. This prevents chips from becoming too long and interfering with drilling. When the annular anvil is suspended from the drill clamp via the suspension block, it extends downward beyond the drill bit. This prevents the generation of iron filings that would interfere with the placement of the annular anvil on the workpiece. The lifting structure includes a connecting ring 18, a plurality of lifting cylinders 19 connecting the connecting ring to the drill clamp, and a plurality of suspension rods 20 suspending the annular blade below the connecting ring. The drill bit is inserted into the connecting ring, and the lifting cylinders and suspension rods are distributed along the circumference of the connecting ring. A spiral groove 21 is provided on the circumference of the drill bit, and an annular suspension groove with an upward opening and coaxial with the drill bit is provided on the annular blade. A suspension block 22 is provided at the lower end of the suspension rod. The suspension block is located in the annular groove and suspends the annular blade. The annular blade is fixed to one end of a drive rod 23, and the other end of the drive rod is inserted into the spiral groove.

Claims

1. A drilling machine with a chip cutting mechanism, comprising a workbench and a drill mounting seat provided on the workbench, wherein the drill mounting seat is provided with a drill clamp, a drill rotating structure for driving the drill clamp to rotate, and a Z-axis guide mechanism for driving the drill clamp to rise and fall. The drill bit used for drilling is a twist drill, and a spiral groove is provided on the circumference of the drill bit, characterized in that: It also includes a chip cutting structure, which includes an annular anvil and an annular blade with a cutting edge facing downward. The anvil is connected to the lower ends of several hanging rods. The upper ends of the hanging rods are passed through the drill clamp and are provided with hanging blocks that prevent the hanging rods from falling off the drill clamp. The annular blade is located directly above the annular anvil and is connected to the drill clamp through a lifting structure. When drilling, the drill bit is passed through the annular anvil and the annular blade, and the annular anvil is placed on the workbench.

2. The drilling machine with a chip cutting structure according to claim 1, characterized in that: The system also includes an X-axis guide mechanism and a Y-axis guide mechanism mounted on the workbench. The X-axis guide mechanism, the Y-axis guide mechanism, and the Z-axis guide mechanism are driven sequentially, with their guide lines perpendicular to each other. This allows the drill bit to move in three directions, while the workpiece remains in position while the drill bit moves to the location where the hole is to be drilled.

3. The drilling machine with a chip cutting structure according to claim 2, characterized in that: The X-axis guide mechanism includes an X-axis guide rail and an X-axis linear drive assembly arranged on the workbench. An X-axis slider is slidably provided on the X-axis guide rail, and the X-axis linear drive assembly drives the X-axis slider to slide along the X-axis guide rail.

4. The drilling machine with a chip cutting structure according to claim 2, characterized in that: The X-axis guide mechanism is provided with two groups on opposite sides of the workbench. The Y-axis guide mechanism includes a Y-axis guide rail and a Y-axis linear drive assembly spanning the two groups of X-axis guide mechanisms. A Y-axis slider is slidably provided on the Y-axis guide rail, and the Y-axis linear drive assembly drives the Y-axis slider to slide along the Y-axis guide rail.

5. The drilling machine with a chip cutting structure according to claim 4, characterized in that: The Y-axis slider is L-shaped, and the Y-axis guide mechanism is provided with at least three groups of Y-axis guide rails distributed on its two sides and cooperate with the Y-axis slider at the same time. The Z-axis guide mechanism includes a Z-axis guide rail and a Z-axis linear drive assembly located on the longitudinal side of the Y-axis slider. A Z-axis slider is slidably provided on the Z-axis guide rail, and the Z-axis linear drive assembly drives the Z-axis slider to slide along the Z-axis guide rail. The drill bit rotation structure is set on the Z-axis slider.

6. A drilling machine with an iron chip cutting structure according to claim 1, 2, 3, 4 or 5, characterized in that: When the annular anvil is suspended on the drill bit holder through the suspension block, the annular anvil extends downward beyond the drill bit.

7. A drilling machine with an iron chip cutting structure according to claim 1, 2, 3, 4 or 5, characterized in that: The lifting structure includes a connecting ring, a plurality of lifting cylinders connecting the connecting ring to the drill clamp, and a plurality of suspension rods suspending the annular blade below the connecting ring. The drill bit is inserted into the connecting ring, and the lifting cylinders and suspension rods are distributed along the circumference of the connecting ring.

8. The drilling machine with a chip cutting structure according to claim 7, characterized in that: A spiral groove is provided on the circumferential surface of the drill bit, and an annular hanging groove with an upward opening and coaxial with the drill bit is provided on the annular blade. A hanging block is provided at the lower end of the hanging rod, and the hanging block is located in the annular groove to suspend the annular blade. The annular blade is fixed together with one end of the driving rod, and the other end of the driving rod is inserted into the spiral groove.

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