Multi-station numerical control drilling machine

Abstract

The utility model relates to the technical field of numerical control machine tools, and discloses a multi-station numerical control drilling machine which comprises a rack, at least two rotating tables, a drill bit and a driving device, the rotating tables are arranged on the rack at intervals, each rotating table is provided with at least one station, and the stations are used for bearing and positioning a single workpiece. The rotating table is used for driving the workpieces on the stations to rotate synchronously; the drill bit is arranged on one side of the rotating table, the driving device is arranged on the rack and is in transmission connection with the drill bit, and the driving device is used for driving the drill bit to move relative to the rotating table so as to drill the workpieces on the stations. According to the utility model, the problem of how to improve the overall efficiency of large-batch drilling operation can be solved.

Description

Technical Field

[0001] This utility model relates to the field of CNC machine tool technology, specifically to a multi-station CNC drilling machine. Background Technology

[0002] In modern manufacturing, drilling is an indispensable and crucial step in many fields, including metal processing, automotive parts manufacturing, and electronic equipment assembly. The working principle of traditional drilling machines is relatively simple: a pre-programmed drill bit is used to precisely drill holes in a workpiece fixed on a worktable.

[0003] While this operating mode ensures drilling accuracy to a certain extent, its inherent operational limitations have become a key factor restricting production efficiency. Specifically, after completing the drilling operation on a workpiece, a traditional drilling machine must stop and wait for the operator to manually remove the drilled workpiece from the worktable and replace it with a new workpiece to be drilled before the machine can be restarted for the next round of drilling. This operating method prevents drilling operations from being carried out continuously, seriously affecting the overall efficiency of mass production.

[0004] To overcome this challenge and improve the overall efficiency of large-scale drilling operations, it is necessary to develop a multi-station CNC drilling machine. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] This utility model provides a multi-station CNC drilling machine, which can at least solve the technical problem of how to improve the overall efficiency of large-scale drilling operations.

[0007] (II) Technical Solution

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a multi-station CNC drilling machine, comprising:

[0009] frame;

[0010] At least two rotary tables are spaced apart on the frame. Each rotary table has at least one station for holding and positioning a single workpiece. The rotary tables are used to drive the workpieces at each station to rotate synchronously.

[0011] The drill bit and drive unit are located on one side of the rotary table, and the drive unit is located on the frame and is connected to the drill bit for transmission. The drive unit is used to drive the drill bit to move relative to the rotary table in order to drill holes in the workpieces at each station.

[0012] In a further configuration, the aforementioned rotary table includes a rotary drive mechanism and at least two rotary seats. The top of the rotary seats is provided with a workstation. The rotary drive mechanism is mounted on the frame, and the output end of the rotary drive mechanism is connected to each rotary seat. The rotary drive mechanism is used to drive each rotary seat to rotate synchronously.

[0013] Furthermore, the aforementioned rotary seats are provided in two units, and the multi-station CNC drilling machine also includes a tool magazine, which is fixed on the frame and located between the two rotary seats;

[0014] The two rotary workstations and the tool magazine are arranged along the same horizontal straight line.

[0015] Further configuration: the aforementioned drive device includes an X-axis drive mechanism, a Y-axis drive mechanism, and a Z-axis drive mechanism. The X-axis drive mechanism is mounted on the frame. The output end of the X-axis drive mechanism is connected to the Y-axis drive mechanism. The output end of the Y-axis drive mechanism is connected to the Z-axis drive mechanism. The output end of the Z-axis drive mechanism is connected to the drill bit.

[0016] The X-axis drive mechanism is used to drive the drill bit to move along the arrangement direction of the rotary table, the Y-axis drive mechanism is used to drive the drill bit to move in the horizontal direction perpendicular to the arrangement direction of the rotary table, and the Z-axis drive mechanism is used to drive the drill bit to move in the vertical direction.

[0017] Furthermore, the aforementioned multi-station CNC drilling machine also includes a clamping device, which corresponds one-to-one with the rotary table and is set on the corresponding rotary table. The clamping device is used to clamp or release the workpiece.

[0018] Furthermore, the aforementioned clamping device includes:

[0019] At least two clamping arms are slidably mounted on a rotating base. Each clamping arm is distributed in a ring-shaped interval around the rotation center line of the rotating base, and a clamping space is formed between each clamping arm.

[0020] A clamping arm drive is mounted on a rotating base and is connected to at least two clamping arms via a transmission mechanism. The clamping arm drive is used to drive at least two clamping arms to slide synchronously toward or away from the rotation center line of the rotating base, so as to reduce or expand the clamping space.

[0021] Furthermore, the aforementioned multi-station CNC drilling machine also includes at least two pressing devices, each corresponding to a rotary table. Each pressing device includes a pressing head and a lifting mechanism. The pressing head is located above the corresponding rotary table, and the lifting mechanism is mounted on the frame and connected to the pressing head via a transmission. The lifting mechanism is used to drive the pressing head to move toward or away from the corresponding rotary table, thereby pressing down on or releasing the workpiece on the corresponding rotary table.

[0022] (III) Beneficial Effects

[0023] Compared with the prior art, the multi-station CNC drilling machine provided by this utility model has the following advantages:

[0024] Beneficial effects:

[0025] 1. When using this multi-station CNC drilling machine, firstly, the workpieces to be drilled are placed one by one on the workstations of each rotary table; then, the drive device drives the drill bit to drill the same side of each workpiece on the same rotary table in sequence. After drilling of the side is completed, the rotary table drives the workpieces on it to rotate synchronously, so that the next side of each workpiece on the rotary table to be drilled turns towards the drill bit together; then, the above steps are repeated, with the drive device and the drill bit cooperating to drill the next side of each workpiece on the rotary table to be drilled; after that, the rotary table drives the workpieces on it to rotate synchronously again, and so on, until the side of each workpiece on the rotary table to be drilled has been completed; finally, the drive device drives the drill bit to move to the next rotary table, and the above steps are repeated to drill the side of each workpiece on the next rotary table to be drilled. While drilling, the workpieces that have been drilled on the previous rotary table can be removed and replaced with a new batch of workpieces to be drilled. As can be seen, this multi-station CNC drilling machine has at least two rotary tables, each with at least one workstation. Each rotary table rotates independently without interfering with the others. This multi-station design means that while drilling a workpiece on one rotary table, operations such as changing workpieces on other rotary tables can be performed without stopping the machine. This effectively avoids the production efficiency loss caused by stopping the machine to change workpieces in traditional drilling machines, thus realizing a continuous and uninterrupted drilling operation process and greatly improving the overall efficiency of large-volume drilling operations.

[0026] 2. This multi-station CNC drilling machine can drive all workpieces on the rotary table to rotate synchronously, so that the subsequent drill bits and drive devices can work together to drill holes on the same side of each workpiece on the same rotary table in sequence. This not only improves the quality and consistency of drilling operations, but also saves drive costs, making it more suitable for large-scale industrial production applications. Attached Figure Description

[0027] Figure 1 This is a perspective view of the multi-station CNC drilling machine in the embodiment;

[0028] Figure 2 This is a schematic diagram of the structure of the frame, rotary table, drill bit and drive device in the embodiment;

[0029] Figure 3 This is a schematic diagram of the rotating table and clamping device in the embodiment.

[0030] Icon labels:

[0031] 1. Rack;

[0032] 2. Rotary table; 21. Workstation; 22. Rotary drive mechanism; 23. Rotary base;

[0033] 3. Drill bit;

[0034] 4. Drive unit; 41. X-axis drive mechanism; 42. Y-axis drive mechanism; 43. Z-axis drive mechanism;

[0035] 5. Tool magazine; 51. Tool storage compartment;

[0036] 61. Clamping arm; 62. Clamping space;

[0037] 7. Pressing device; 71. Pressing head; 72. Lifting mechanism. Detailed Implementation

[0038] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0039] This invention provides a multi-station CNC drilling machine to solve the problem of how to improve the overall efficiency of large-scale drilling operations.

[0040] See Figure 1 As shown, Figure 1 The image shown is a perspective view of a multi-station CNC drilling machine in the embodiment. The multi-station CNC drilling machine includes a frame 1, a rotary table 2, a drill bit 3, and a drive device 4.

[0041] There are at least two rotary tables 2, which are spaced apart on the frame 1 by means of screwing or welding. Each rotary table 2 has at least one station 21. Station 21 is used to hold and position a single workpiece. The rotary table 2 is used to drive the workpieces on each station 21 to rotate synchronously, so as to realize the position adjustment of the workpiece during the drilling process.

[0042] The drill bit 3 is located on one side of the rotary table 2. The drive unit 4 is mounted on the frame 1 and is connected to the drill bit 3 for transmission. The drive unit 4 is used to drive the drill bit 3 to move relative to the rotary table 2 in order to drill holes in the workpieces at each station 21.

[0043] When using the multi-station CNC drilling machine described above, firstly, the workpieces to be drilled are placed one by one on the station 21 of each rotary table 2. Then, the drive device 4 drives the drill bit 3 to drill the same side of each workpiece on the same rotary table 2 in sequence. After drilling of the side is completed, the rotary table 2 drives the workpieces on it to rotate synchronously, so that the next side of each workpiece on the rotary table 2 to be drilled turns towards the drill bit 3 together. Next, the above steps are repeated, with the drive device 4 and the drill bit 3 cooperating to drill the next side of each workpiece on the rotary table 2 to be drilled. Afterward, the rotary table 2 drives the workpieces on it to rotate synchronously again, and so on, until the side of each workpiece on the rotary table 2 to be drilled has been completed. Finally, the drive device 4 drives the drill bit 3 to move to the next rotary table 2, and the above steps are repeated to drill the side of each workpiece on the next rotary table 2 to be drilled. At the same time as drilling, the workpieces that have been drilled on the previous rotary table 2 can be removed and replaced with a new batch of workpieces to be drilled. As can be seen, this multi-station CNC drilling machine has at least two rotary tables 2, each with at least one workstation 21. Each rotary table 2 rotates independently without interference. This multi-workstation design means that while drilling a workpiece on one rotary table 2, operations such as changing workpieces on other rotary tables 2 can be performed without stopping the machine. This effectively avoids the production efficiency loss caused by stopping to change workpieces in traditional drilling machines, thus achieving a continuous and uninterrupted drilling process and greatly improving the overall efficiency of large-scale drilling operations. Furthermore, the rotary tables 2 can drive the workpieces at each workstation 21 to rotate synchronously, so that the drill bit 3 and drive device 4 can work together to drill the same side of each workpiece on the same rotary table 2 in sequence. This not only improves the quality and consistency of the drilling operation but also saves on drive costs, making it more suitable for large-scale industrial production applications.

[0044] When the aforementioned drive device 4 and drill bit 3 work together to drill, they can first drill holes at the same position on the same side of each workpiece on the same rotary table 2. After drilling, they can drill holes at the next identical position on the same side until the side is completely drilled. Then, the rotary table 2 drives the workpieces on it to rotate synchronously. This drilling operation method can improve the consistency of drilling positions.

[0045] The aforementioned drill bit 3 can be composed of an existing drill bit, a tool holder, and a rotating mechanism. In this way, the appropriate drill bit can be selected according to the actual hole diameter and installed on the tool holder. During drilling, the rotating mechanism drives the tool holder and the drill bit on it to rotate together, while the driving device 4 drives the drill bit 3 to move along the depth direction of the hole, thus realizing the drilling of the workpiece.

[0046] See Figure 1As shown, in one embodiment of the rotary table 2, the rotary table 2 includes a rotary drive mechanism 22 and at least two rotating seats 23. The rotating seats 23 have the aforementioned workstation 21 on their tops. The rotary drive mechanism 22 is mounted on the frame 1 by means of screwing or welding, and the output end of the rotary drive mechanism 22 is connected to each rotating seat 23. The rotary drive mechanism 22 is used to drive each rotating seat 23 to rotate synchronously. Thus, when the rotary drive mechanism 22 is activated, it can drive at least two rotating seats 23 to rotate synchronously, realizing the synchronous rotation and flipping of all workpieces on the rotary table 2, so that the drive device 4 and the drill bit 3 can cooperate to drill the next side of all workpieces on the rotary table 2 to be drilled.

[0047] The aforementioned rotary drive mechanism 22 can use existing servo motors or stepper motors, and its output end is connected to each rotary seat 23 through a transmission mechanism such as gears or worm gears to achieve synchronous rotation.

[0048] See Figure 1 As shown, based on the above embodiment, there are two rotary seats 23. The multi-station CNC drilling machine also includes a tool magazine 5. The tool magazine 5 is fixed to the frame 1 by means of screws or welding, and is located between the two rotary seats 23. The workstations 21 of the two rotary seats 23 and the tool magazine 5 are arranged along the same horizontal straight line. In this way, the drive device 4 drives the drill bit 3 to move along this arrangement direction, which can not only switch the position of the drill bit 3 relative to different rotary tables 2 in turn, but also make the position of the drill bit 3 relative to the tool magazine 5, so as to facilitate the rapid switching of the drill bit 3 and the continuous processing of the workpiece.

[0049] See Figure 1 As shown, the tool magazine 5 can be equipped with multiple tool storage slots 51, and each tool storage slot 51 can hold different types of drill bits 3. The tool magazine 5 can also be equipped with an existing tool changing device to achieve automatic tool changing.

[0050] See Figure 2 As shown, Figure 2This is a schematic diagram of the structure of the frame, rotary table, drill bit, and drive device in one embodiment. In one implementation of the drive device 4, the drive device 4 includes an X-axis drive mechanism 41, a Y-axis drive mechanism 42, and a Z-axis drive mechanism 43. The X-axis drive mechanism 41 is mounted on the frame 1 by screwing or welding. The output end of the X-axis drive mechanism 41 is connected to the Y-axis drive mechanism 42, the output end of the Y-axis drive mechanism 42 is connected to the Z-axis drive mechanism 43, and the output end of the Z-axis drive mechanism 43 is connected to the drill bit 3. Specifically, the X-axis drive mechanism 41 drives the drill bit 3 to move along the arrangement direction of the rotary table 2, the Y-axis drive mechanism 42 drives the drill bit 3 to move horizontally perpendicular to the arrangement direction of the rotary table 2, and the Z-axis drive mechanism 43 drives the drill bit 3 to move vertically. Thus, the drive device 4, through the cooperation of the X-axis drive mechanism 41, the Y-axis drive mechanism 42, and the Z-axis drive mechanism 43, can drive the drill bit 3 to drill at any position of the workpiece on any station 21.

[0051] The X-axis drive mechanism 41, Y-axis drive mechanism 42 and Z-axis drive mechanism 43 mentioned above can all use existing servo motor-screw nut linear modules or servo linear motors and other linear displacement drive mechanisms to achieve precise control of the drill bit 3's movement.

[0052] See Figure 3 As shown, Figure 3 This is a schematic diagram of the rotary table and clamping device in one embodiment. In one implementation of the drive device 4, the multi-station CNC drilling machine also includes a clamping device. Each clamping device corresponds to a rotary base 23, and the clamping device is mounted on the corresponding rotary base 23. The clamping device is used to clamp or release the workpiece. Thus, the clamping device can position the workpieces on each station 21, effectively preventing the workpieces from shifting or being damaged due to vibrations caused by rotation or drilling.

[0053] In addition to automatically positioning the workpiece at station 21 using the aforementioned clamping device, the multi-station CNC drilling machine can also position the workpiece using a limiting groove adapted to the workpiece to be drilled. The former has a wider range of applications and can clamp workpieces of different shapes and sizes, while the latter can only clamp workpieces of the same shape and size, but is less expensive.

[0054] See Figure 3As shown, in one embodiment of the clamping device, the clamping device includes clamping arms 61 and clamping arm drive members. There are at least two clamping arms 61, which are slidably connected to the rotating base 23. The clamping arms 61 are distributed in a ring-like interval around the rotation center line of the rotating base 23. A clamping space 62 is formed between the clamping arms 61. The clamping arm drive member (not shown in the figure) is mounted on the rotating base 23 and is drively connected to at least two clamping arms 61. The clamping arm drive member is used to drive at least two clamping arms 61 to slide synchronously toward or away from the rotation center line of the rotating base 23, thereby reducing or expanding the clamping space 62. It can be seen that the size of the clamping space 62 of this clamping device can be adjusted according to the shape and size of different workpieces to ensure the stability and accuracy of the workpiece during the drilling process.

[0055] The aforementioned gripper drive can use existing gripper or chuck mechanisms.

[0056] See Figure 3 As shown, based on the clamping device, the multi-station CNC drilling machine also includes at least two pressing devices 7. Each pressing device 7 is correspondingly arranged with a rotary table 2. Each pressing device 7 includes a pressing head 71 and a lifting mechanism 72. The pressing head 71 is located above the corresponding rotary table 2. The lifting mechanism 72 is mounted on the frame 1 by screwing or welding and is connected to the pressing head 71 in a driving manner. The lifting mechanism 72 drives the pressing head 71 to move towards or away from the corresponding rotary table 2, pressing down on or releasing the workpieces on the corresponding rotary table 2. Thus, before the drive device 4 and the drill bit 3 work together to drill holes on the same side of any workpiece on any rotary table 2, the lifting mechanism 72 corresponding to that rotary table 2 drives the pressing head 71 to move towards that rotary table 2, pressing down on all the workpieces on that rotary table 2, further fixing all the workpieces on that rotary table 2, thereby further preventing the workpieces from shifting during the drilling process.

[0057] The aforementioned lifting mechanism 72 can use existing telescopic drive mechanisms such as telescopic cylinders or telescopic poles, or it can use existing linear displacement drive mechanisms such as servo motor-lead screw nut linear modules or servo linear motors.

[0058] The multi-station CNC drilling machine may also include a sensing device (not shown in the figure) for real-time monitoring of the workpiece position, drilling progress and drill bit status, so as to adjust the drilling parameters or issue a fault alarm in a timely manner.

[0059] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-station CNC drilling machine, characterized in that, include: frame; At least two rotary tables are spaced apart on the frame. Each rotary table has at least one workstation for carrying and positioning a single workpiece. The rotary tables are used to drive the workpieces at each workstation to rotate synchronously. The drill bit and the drive device are provided. The drill bit is located on one side of the rotary table, and the drive device is located on the frame and is connected to the drill bit for transmission. The drive device is used to drive the drill bit to move relative to the rotary table in order to drill holes in the workpieces at each of the workstations.

2. The multi-station CNC drilling machine according to claim 1, characterized in that, The rotary table includes a rotary drive mechanism and at least two rotary seats. The workstation is located on the top of each rotary seat. The rotary drive mechanism is mounted on the frame. The output end of the rotary drive mechanism is connected to each of the rotary seats. The rotary drive mechanism is used to drive each of the rotary seats to rotate synchronously.

3. The multi-station CNC drilling machine according to claim 2, characterized in that, The rotating base is provided in two places, and the multi-station CNC drilling machine also includes a tool magazine, which is fixed on the frame and located between the two rotating bases; The two rotary seats and the tool magazine are arranged along the same horizontal straight line.

4. The multi-station CNC drilling machine according to any one of claims 1-3, characterized in that, The drive device includes an X-axis drive mechanism, a Y-axis drive mechanism, and a Z-axis drive mechanism. The X-axis drive mechanism is mounted on the frame. The output end of the X-axis drive mechanism is connected to the Y-axis drive mechanism. The output end of the Y-axis drive mechanism is connected to the Z-axis drive mechanism. The output end of the Z-axis drive mechanism is connected to the drill bit. The X-axis drive mechanism is used to drive the drill bit to move along the arrangement direction of the rotary table, the Y-axis drive mechanism is used to drive the drill bit to move in a horizontal direction perpendicular to the arrangement direction of the rotary table, and the Z-axis drive mechanism is used to drive the drill bit to move in a vertical direction.

5. The multi-station CNC drilling machine according to any one of claims 1-3, characterized in that, The multi-station CNC drilling machine also includes a clamping device, which corresponds one-to-one with the rotating seat and is set on the corresponding rotating seat. The clamping device is used to clamp or release the workpiece.

6. The multi-station CNC drilling machine according to claim 5, characterized in that, The clamping device includes: At least two clamping arms are slidably disposed on the rotating base, and each clamping arm is distributed in a ring-shaped interval around the rotation center line of the rotating base, forming a clamping space between each clamping arm; A clamping arm drive is disposed on the rotating base and is kinetically connected to at least two of the clamping arms. The clamping arm drive is used to drive at least two of the clamping arms to slide synchronously toward or away from the rotation center line of the rotating base, so as to reduce or expand the clamping space.

7. The multi-station CNC drilling machine according to claim 5, characterized in that, The multi-station CNC drilling machine also includes at least two pressing devices, each corresponding to a rotary table. Each pressing device includes a pressing head and a lifting mechanism. The pressing head is located above the corresponding rotary table, and the lifting mechanism is mounted on the frame and connected to the pressing head in a transmission manner. The lifting mechanism is used to drive the pressing head to move toward or away from the corresponding rotary table, pressing or releasing the workpiece on the corresponding rotary table.

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