Multi-station high-efficiency drilling and milling machine tool

Abstract

The present application relates to the technical field of intelligent manufacturing equipment industry, and more particularly to a multi-station efficient drilling and milling machine. The machine comprises a workbench, an electric turntable rotatably connected to the upper part of the workbench, a plurality of electric clamps evenly distributed on the electric turntable, a plurality of hydraulic push rods installed on the workbench, a power unit installed on the telescopic part of the hydraulic push rod, a drive shaft installed on the power unit, the power unit being configured to drive the drive shaft to rotate, a drill bit detachably connected to the drive shaft, and a plurality of variable-diameter portions linearly distributed on the drill bit, the diameters of the variable-diameter portions corresponding to different drill bits being different. The present application is provided with a plurality of variable-diameter portions with different diameters in different stations and different diameters in the same station, which can drill and mill holes with different diameters on the same material without replacing the drill bit, thereby avoiding the impact of frequent replacement and cleaning of the drill bit on the drilling and milling efficiency.

Description

Technical Field

[0001] This invention relates to the field of intelligent manufacturing equipment technology, and in particular to a multi-station high-efficiency drilling and milling machine tool. Background Technology

[0002] Drilling and milling is one of the most common processing methods in the field of intelligent manufacturing of machinery. Drilling and milling equipment is widely used for hole processing of various metal parts. In actual production, multiple holes of different diameters are often required to be processed on different parts of the same workpiece.

[0003] For machining different hole diameters on the same workpiece, the traditional approach is to use the same drilling and milling equipment and frequently change the corresponding diameter drill bit when machining different hole diameters. Each time the drill bit is changed, in order to ensure the stable installation of the drill bit, the operator must follow a standard procedure of "stopping the machine → removing the old drill bit → cleaning the drill bit and its mounting area → installing the new drill bit → calibration", which will seriously affect the efficiency of drilling and milling. Summary of the Invention

[0004] In order to overcome the shortcomings mentioned in the background art, the present invention provides a multi-station high-efficiency drilling and milling machine tool.

[0005] The technical solution of the present invention is as follows: a multi-station high-efficiency drilling and milling machine tool, comprising a worktable, an electric turntable rotatably connected to the upper part of the worktable, a plurality of circumferentially evenly distributed electric clamps mounted on the electric turntable, a plurality of hydraulic push rods mounted on the worktable, a power component mounted on the telescopic part of the hydraulic push rods, a drive shaft mounted on the power component, the power component being used to drive the drive shaft to rotate, a drill bit detachably connected to the drive shaft, the drill bit having a plurality of linearly distributed variable diameter parts, the diameter of the variable diameter parts corresponding to different drill bits being different, and the diameter of all variable diameter parts on the same drill bit decreasing sequentially from top to bottom.

[0006] Preferably, the drill bit is provided with a plurality of channels evenly distributed in the circumference, and the channels penetrate all the variable diameter sections of adjacent drill bits.

[0007] Preferably, a first connecting frame is slidably connected to the power component, and the electric clamp is used to squeeze adjacent first connecting frames. A first elastic element is fixedly connected between the first connecting frame and the adjacent power component. A first rotating ring is rotatably connected to the first connecting frame, and a plurality of circumferentially evenly distributed first sliding frames are slidably connected to the first rotating ring. The number of first sliding frames on the same first rotating ring is the same as the number of channels on the adjacent drill bit. The first sliding frames slide within the adjacent channels, and a second elastic element is fixedly connected between the first sliding frame and the adjacent first rotating ring.

[0008] Preferably, the electric rotary table is equipped with second connecting frames that are circumferentially evenly distributed and have the same number as the electric clamps. A second rotating ring is rotatably connected to the second connecting frame. Several second sliding frames are circumferentially evenly distributed on the second rotating ring. The number of second sliding frames on the same second rotating ring is the same as the number of channels on the adjacent drill bit. The upper side of the second sliding frame is an arc-shaped surface. The variable diameter part is used to compress all the second sliding frames on the adjacent second rotating ring. The channel is used for the corresponding second sliding frame to slide. A third elastic element is fixed between the second sliding frame and the adjacent second rotating ring.

[0009] Preferably, the second connecting frame has several resistance blocks evenly distributed circumferentially fixed to one side near the adjacent drill bit.

[0010] Preferably, the variable diameter section is fixedly connected with several sets of transverse blades spaced apart and several sets of vertical blades spaced apart circumferentially. Each set of transverse blades has several sets of vertical blades spaced apart circumferentially, and the vertical blades are located above all the transverse blades on the same variable diameter section.

[0011] Preferably, the outer diameter of the different groups of transverse blades on the variable diameter section increases sequentially from bottom to top, and the lower part of the vertical blade is provided with an inclined surface.

[0012] Preferably, the vertical blade is provided with a plurality of through holes spaced apart.

[0013] Preferably, all first sliding frames have a notch on the side closest to the drill bit.

[0014] Preferably, the depth of the notch is greater than the deepest part of the channel.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention sets up multiple variable diameter parts with different diameters at different work stations and different diameters at the same work station, so as to drill and mill holes of different diameters on the same material without changing the drill bit, thus avoiding the impact on drilling and milling efficiency caused by frequent replacement and cleaning of the drill bit. 2. The drill bit is positioned in multiple segments by using several circumferentially evenly distributed second sliding frames and several circumferentially evenly distributed first sliding frames to reduce the probability of the drill bit shaking or even bending due to its slender shape, thus ensuring the stability of the drill bit during use. 3. The drill-milling hole is drilled layer by layer through all the transverse cutting edges on the same variable diameter section to reduce the probability of material damage or even deformation caused by the rotation force of the drill bit during the drilling and milling process. In addition, the vertical cutting edge is used to scrape the side wall of the drill-milling hole to ensure the smoothness of the side wall of the drill-milling hole and improve the quality of the drill-milling hole formation. 4. Through multiple through holes and multiple notches, coolant is supplied to the side wall of the drill bit near the deep end of the drilled hole, and metal chips in the drilled hole are sent out to cool the drilled hole, reduce the amount of chips in the drilled hole, and thus improve the quality of the drilled hole formation. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a three-dimensional structural schematic diagram of the power component of the present invention; Figure 3 This is a three-dimensional structural diagram of the drive shaft of the present invention; Figure 4 This is a three-dimensional structural diagram of the drill bit of the present invention; Figure 5 This is a three-dimensional structural diagram of the channel of the present invention; Figure 6 This is a three-dimensional structural diagram of the horizontal and vertical blades of the present invention; Figure 7 This is a three-dimensional structural diagram of the second sliding frame of the present invention.

[0017] The components in the diagram are labeled as follows: 1-Workbench, 2-Electric turntable, 3-Electric clamp, 4-Hydraulic push rod, 5-Power component, 6-Drive shaft, 7-Drill bit, 8-Variable diameter section, 9-Channel, 10-First connecting frame, 11-First elastic element, 12-First rotating ring, 13-First sliding frame, 14-Second elastic element, 15-Second connecting frame, 16-Second rotating ring, 17-Second sliding frame, 18-Third elastic element, 19-Resistance block, 20-Horizontal cutting edge, 21-Vertical cutting edge, 22-Through hole, 23-Notch. Detailed Implementation

[0018] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but this does not limit the scope of protection and application of the present invention.

[0019] Example 1 A multi-station high-efficiency drilling and milling machine tool, such as Figures 1-6As shown, the system includes a worktable 1, on which a control terminal (not shown) is mounted. An electric turntable 2 is rotatably connected to the upper part of the worktable 1. The electric turntable 2 is electrically connected to the control terminal, which drives the electric turntable 2 to rotate. Several electric clamps 3 are evenly distributed circumferentially on the electric turntable 2. The electric turntable 2 has the same number of holes as the electric clamps 3, which connect to the existing coolant system for recycling the coolant used during drilling and milling. The electric clamps 3 are existing structures and are only shown for illustration. The electric clamps 3 are electrically connected to the control terminal, which drives the electric clamps 3 to move and clamp materials. Several hydraulic push rods 4 are mounted on the worktable 1, and the hydraulic push rods 4 are electrically connected to the control terminal. A power component 5 is mounted on the telescopic part of the hydraulic push rod 4, and the power component 5 is electrically connected to the control terminal. A drive shaft 6 is mounted on the power component 5. The power unit 5 is used to drive the power component 5 to move up and down. The power component 5 is an existing structure, consisting of a motor, a housing, and a control module. The power component 5 is used to drive the drive shaft 6 to rotate. The drill bit 7 is detachably connected to the drive shaft 6. The hole of the electric turntable 2 is used to provide space for the drill bit 7 to pass through the material. The drill bit 7 can be installed by a pin. The drill bit 7 is provided with several linearly distributed variable diameter sections 8. During the rotation of the drill bit 7, coolant is sprayed onto the drilling and milling part of the drill bit 7 through the existing coolant system to remove impurities at the drilling and milling part and cool down the drill bit 7. The diameter of the corresponding variable diameter section 8 on different drill bits 7 is different. The diameter of all variable diameter sections 8 on the same drill bit 7 decreases from top to bottom. Several circumferentially evenly distributed channels 9 are provided on the drill bit 7. The channels 9 pass through all variable diameter sections 8 on adjacent drill bits 7, so that there is space for coolant to pass between the variable diameter section 8 and the drilling and milling hole, thereby cooling the variable diameter section 8 during the drilling and milling process.

[0020] When the operator needs to use this device to drill and mill materials, the electric clamp 3 and the electric turntable 2 are turned on through the control terminal. The electric clamp 3 clamps the material, and then the electric turntable 2 drives all the electric clamps 3 to rotate intermittently (taking one electric clamp 3 and one drill bit 7 set every 90° in the figure as an example, the electric turntable 2 pauses once every time it rotates 90°).

[0021] During the intermittent rotation of all electric clamps 3 driven by the electric turntable 2, the operator places multiple materials on all electric clamps 3 in sequence. Then, the operator activates the hydraulic push rod 4 through the control terminal. The extension part of the hydraulic push rod 4 drives the power component 5 to move downward (at this time, the electric turntable 2 stops rotating), causing the drive shaft 6, drill bit 7, and all diameter-changing parts 8 to move downward. At the same time, the operator activates the power component 5 through the control terminal. The power component 5 drives the drive shaft 6 to rotate, causing the drill bit 7 and all diameter-changing parts 8 to rotate. All diameter-changing parts 8 drill and mill the materials sequentially from bottom to top. By using the diameter-changing parts 8 of different diameters on the same drill bit 7, the operator can adapt to the hole diameter required for drilling and milling holes at different positions on different materials.

[0022] After a hole is drilled in the material, the extension part of the hydraulic push rod 4 drives the power component 5 to move upward, causing the drive shaft 6, drill bit 7, and all diameter-changing parts 8 to move upward and reset. The electric turntable 2 then starts rotating again, driving all the electric clamps 3 to rotate, so that the material is moved to the next drill bit 7 by the electric clamps 3. The position of the material is adjusted in real time by the movement of the electric clamps 3, so that the next drill bit 7 is aligned with the next hole to be drilled in the material. Then, the above steps are repeated to drill the hole. By setting up a multi-station drill bit 7, and the diameter of the corresponding diameter-changing part 8 on the drill bit 7 at different stations, and the diameter of all diameter-changing parts 8 on the same drill bit 7 are different, drilling holes of different diameters on the same material can be performed without changing the drill bit 7, thus improving the efficiency of drilling and milling.

[0023] After all the drilling and milling holes on the material are completed, the operator removes the drilled and milled material from the corresponding electric clamp 3 when the electric turntable 2 stops rotating, and installs the new material on the corresponding electric clamp 3. This process is repeated continuously to drill and mill holes at different positions on the material. After all the material has been drilled and milled, the electric clamp 3, electric turntable 2, hydraulic push rod 4, and power component 5 are turned off through the control terminal.

[0024] like Figures 3-6As shown, a first connecting frame 10 is slidably connected to the power component 5. An electric clamp 3 is used to compress adjacent first connecting frames 10. A first elastic element 11, which is a compression spring, is fixed between the first connecting frame 10 and the adjacent power component 5. A first rotating ring 12 is rotatably connected to the first connecting frame 10. During the downward movement of the drill bit 7 driven by the power component 5 via the drive shaft 6, the power component 5 drives the first connecting frame 10 downward. When the first connecting frame 10 moves to contact the electric clamp 3, it is blocked by the electric clamp 3, and the movement of the first connecting frame 10 stops. The first elastic element 11 is compressed. Several first sliding frames 13 are slidably connected to the first rotating ring 12, evenly distributed circumferentially. The number of first sliding frames 13 on the same first rotating ring 12 is the same as the number of channels 9 on the adjacent drill bit 7. With the same number of components, during the downward movement of the power component 5 and the pause of the first connecting frame 10, both the first connecting frame 10 and the first rotating ring 12 move upward relative to the drill bit 7, and the first sliding frame 13 slides upward relative to the adjacent channel 9. The drill bit 7 is limited by several circumferentially evenly distributed first sliding frames 13 to enhance the stability of the drill bit 7 during rotation. A second elastic element 14 is fixed between the first sliding frame 13 and the adjacent first rotating ring 12. The second elastic element 14 is a compression spring. When the drill bit 7 needs to be replaced, the drill bit 7 is removed, and several circumferentially evenly distributed first sliding frames 13 slide in all directions. The second elastic element 14 is compressed, and the first sliding frame 13 disengages from the channel 9. The new drill bit 7 is then installed on the drive shaft 6, and the first sliding frame 13 is inserted into the corresponding channel 9 on the new drill bit 7.

[0025] like Figure 3 and Figure 7As shown, the electric turntable 2 is equipped with a second connecting frame 15, which is circumferentially evenly distributed and has the same number as the electric clamp 3. A number of resistance blocks 19 are circumferentially evenly distributed on the upper side of the second connecting frame 15. These resistance blocks increase the rotational resistance of the material, reducing the probability of deformation at the drilling point due to the rotational torque on the material during drilling and milling, thus ensuring the quality of the material drilling and milling. A second rotating ring 16 is rotatably connected to the second connecting frame 15. A number of second sliding frames 17 are circumferentially evenly distributed on the second rotating ring 16. The number of second sliding frames 17 on the same second rotating ring 16 is the same as the number of channels 9 on adjacent drill bits 7. The upper side of the second sliding frame 17 is an arc-shaped surface. The second connecting frame 15, the second rotating ring 16, and the second sliding frame 17 are all located below the material. The variable diameter section 8 is used to compress adjacent second rotating rings 16. The arc-shaped surfaces of all the second sliding frames 17 are provided. The channel 9 is used for the corresponding second sliding frames 17 to slide. A third elastic element 18 is fixed between the second sliding frame 17 and the adjacent second rotating ring 16. The third elastic element 18 is a compression spring. When the drill bit 7 passes through the material, the lower diameter-changing part 8 on the drill bit 7 squeezes all the second sliding frames 17 on the adjacent second rotating ring 16. The third elastic element 18 is compressed. As the drill bit 7 moves downward and rotates, the second sliding frame 17 is inserted into the channel 9. The drill bit 7 is limited by several circumferentially evenly distributed second sliding frames 17 to enhance the stability of the drill bit 7 during rotation. The second sliding frame 17 limits the lower part of the drill bit 7, and the first sliding frame 13 limits the upper part of the drill bit 7. The drill bit 7 is positioned in multiple segments to reduce the probability of the drill bit shaking or even bending due to its slender shape, and to ensure the stability of the drill bit 7 during use.

[0026] Example 2 Based on Example 1, such as Figure 5 and Figure 6 As shown, several sets of transverse blades 20 and several sets of vertical blades 21 are fixedly connected to the variable diameter section 8 at intervals. Each set of transverse blades 20 has several circumferentially distributed blades. The vertical blades 21 are located above all transverse blades 20 on the same variable diameter section 8. The outer diameter of different sets of transverse blades 20 on the variable diameter section 8 increases sequentially from bottom to top. The lower part of the vertical blades 21 is provided with an inclined surface. The drilling and milling hole is drilled layer by layer through all transverse blades 20 on the same variable diameter section 8 to reduce the probability of material damage or even deformation caused by the rotation force of the drill bit 7 during the drilling and milling process. In addition, the vertical blades 21 are used to scrape the side wall of the drilling and milling hole to ensure the smoothness of the side wall of the drilling and milling hole and improve the quality of the drilling and milling hole formation. Several through holes 22 are provided on the vertical blades 21 at intervals. Through the through holes 22, coolant is supplied to the position of the drill bit 7 near the side wall of the deep drilling and milling hole to cool the drilling and milling hole.

[0027] Example 3 Based on Example 2, such as Figure 6 and Figure 7 As shown, all first sliding frames 13 have notches 23 on the side near the drill bit 7. The depth of the notches 23 is greater than the deepest depth of the channel 9. During the rotation of the drill bit 7, coolant is sprayed onto the drilled and milled area of ​​the drill bit 7 through the existing coolant system to remove impurities and cool the drill bit 7. The notches 23 are used to allow coolant and metal chips to pass through, so as to directly deliver the coolant to the depth of the drilled and milled hole and deliver the metal chips out, thereby cooling the drilled and milled hole, reducing the amount of chips in the drilled and milled hole, and thus improving the quality of the drilled and milled hole formation.

[0028] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A multi-station high-efficiency drilling and milling machine tool, characterized in that, The device includes a worktable (1), an electric turntable (2) rotatably connected to the upper part of the worktable (1), a number of electric clamps (3) evenly distributed in the circumference installed on the electric turntable (2), a number of hydraulic push rods (4) installed on the worktable (1), a power component (5) installed on the telescopic part of the hydraulic push rod (4), a drive shaft (6) installed on the power component (5), the power component (5) is used to drive the drive shaft (6) to rotate, a drill bit (7) is detachably connected to the drive shaft (6), the drill bit (7) is provided with a number of variable diameter parts (8) arranged in a straight line, the diameter of the corresponding variable diameter parts (8) on different drill bits (7) is different, and the diameter of all the variable diameter parts (8) on the same drill bit (7) decreases from top to bottom.

2. The multi-station high-efficiency drilling and milling machine tool according to claim 1, characterized in that, The drill bit (7) is provided with a number of channels (9) evenly distributed in the circumference, and the channels (9) penetrate all the variable diameter parts (8) on the adjacent drill bits (7).

3. The multi-station high-efficiency drilling and milling machine tool according to claim 2, characterized in that, The power component (5) is slidably connected to a first connecting frame (10), and the electric clamp (3) is used to squeeze the adjacent first connecting frame (10). The first connecting frame (10) and the adjacent power component (5) are fixedly connected to a first elastic element (11). The first connecting frame (10) is rotatably connected to a first rotating ring (12). The first rotating ring (12) is slidably connected to a plurality of circumferentially evenly distributed first sliding frames (13). The number of first sliding frames (13) on the same first rotating ring (12) is the same as the number of channels (9) on the adjacent drill bit (7). The first sliding frame (13) slides in the adjacent channel (9). The first sliding frame (13) and the adjacent first rotating ring (12) are fixedly connected to a second elastic element (14).

4. The multi-station high-efficiency drilling and milling machine tool according to claim 3, characterized in that, The electric turntable (2) is equipped with a second connecting frame (15) that is circumferentially evenly distributed and has the same number as the electric clamp (3). A second rotating ring (16) is rotatably connected to the second connecting frame (15). A number of second sliding frames (17) that are circumferentially evenly distributed are slidably connected to the second rotating ring (16). The number of second sliding frames (17) on the same second rotating ring (16) is the same as the number of channels (9) on the adjacent drill bit (7). The upper side of the second sliding frame (17) is an arc-shaped surface. The variable diameter part (8) is used to squeeze all the second sliding frames (17) on the adjacent second rotating ring (16). The channel (9) is used for the corresponding second sliding frame (17) to slide. A third elastic element (18) is fixed between the second sliding frame (17) and the adjacent second rotating ring (16).

5. A multi-station high-efficiency drilling and milling machine tool according to claim 4, characterized in that, The second connecting frame (15) has several resistance blocks (19) evenly distributed in the circumferential direction fixed to one side near the adjacent drill bit (7).

6. A multi-station high-efficiency drilling and milling machine tool according to claim 5, characterized in that, The variable diameter section (8) is fixed with several sets of transverse blades (20) spaced apart and several sets of vertical blades (21) spaced apart circumferentially. Each set of transverse blades (20) has several sets of vertical blades distributed circumferentially. The vertical blades (21) are located above all the transverse blades (20) on the same variable diameter section (8).

7. A multi-station high-efficiency drilling and milling machine tool according to claim 6, characterized in that, The outer diameter of the different sets of transverse blades (20) on the variable diameter section (8) increases sequentially from bottom to top, and the lower part of the vertical blade (21) is provided with an inclined surface.

8. A multi-station high-efficiency drilling and milling machine tool according to claim 7, characterized in that, The vertical blade (21) is provided with a number of through holes (22) spaced apart.

9. A multi-station high-efficiency drilling and milling machine tool according to claim 8, characterized in that, All of the first sliding frames (13) have a notch (23) on the side near the drill bit (7).

10. A multi-station high-efficiency drilling and milling machine tool according to claim 9, characterized in that, The depth of the gap (23) is greater than the deepest depth of the channel (9).

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