Numerical control planer drilling machine with automatic tool changing function

Abstract

This utility model discloses a CNC planar drilling machine with automatic tool changing function, including a machine housing, a frame, and a long shaft. Two parallel support plates are arranged on the upper surface of the inner cavity in the middle of the machine housing. A double-headed reverse threaded rod is rotatably mounted in the middle of the frame. Slider blocks are threaded to the outer surfaces of both ends of the double-headed reverse threaded rod. The surface of the slider away from the back of the machine housing is fixedly installed to the side of the support plate. Both ends of the long shaft are threaded, with the threads in opposite directions. Movable plates are threaded to both ends of the long shaft. Connecting rods are fixedly installed on the surfaces of the tops of the two movable plates that are close to each other. Clamping plates are fixedly installed at the ends of the two connecting rods that are close to each other. This utility model adjusts the position of the support plate and clamping plate by adjusting the rotation of the double-headed reverse threaded rod and the long shaft, thereby achieving the centering clamping or release of the sheet material and adjusting the position of the support plate at the bottom of the sheet material to avoid damage.

Description

Technical Field

[0001] This utility model relates to the field of CNC planar drilling machine technology, and more specifically, to a CNC planar drilling machine with automatic tool changing function. Background Technology

[0002] A CNC planar drilling machine is a high-precision automated machining equipment that employs computer numerical control technology. It is specifically designed for drilling multiple holes in planar parts such as metal sheets and pipes. It boasts advantages such as high machining accuracy and high efficiency, making it one of the key pieces of equipment in modern intelligent manufacturing.

[0003] A search revealed CN218224777U, which discloses a planar CNC drilling machine. Addressing the problems of existing drilling machines causing steel plate displacement during drilling, affecting drilling quality, and the inconvenience of waste chip collection during drilling, the following solution is proposed: It includes a base and a drilling machine. A rectangular box for collecting waste chips is fixedly connected to the top of the base. The top of the rectangular box has an opening, and a mesh plate is fixedly connected to the top of the rectangular box. A barrier is fixedly connected to the top of the mesh plate, and two support plates are fixedly connected to the mesh plate.

[0004] Although the aforementioned utility model patent achieves the positioning and clamping of the steel plate through a fixing mechanism, effectively avoiding displacement problems during processing, the following technical defects have been found in practical applications: First, with the fixed support plate structure, when the drilling position overlaps with the support plate, the drill bit is very likely to damage the support components, which not only affects the service life of the equipment but may also cause processing safety hazards; Second, the clamping method that relies on screw adjustment lacks an automatic centering function, which can easily lead to eccentric clamping of the plate. This asymmetrical force state will cause local deformation of the plate, thereby affecting the CNC system's accurate positioning of the drilling coordinates and ultimately leading to deviations in processing accuracy. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, this utility model provides a CNC planar drilling machine with automatic tool changing function, so as to solve the problems that although the fixed mechanism of the existing part can prevent displacement, the fixed support plate is easily damaged by the drill bit, and the screw clamping is difficult to align, which easily leads to plate deformation and drilling deviation.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a CNC planar drilling machine with automatic tool changing function, comprising...

[0007] The work unit has a cabinet door on one side of its front. Two parallel support plates are provided on the upper surface of the inner cavity in the middle of the work unit. The lower surface of the support plates is slidably installed with the upper surface of the inner cavity in the middle of the work unit.

[0008] A frame is fixedly installed on one side of the inner wall of the back of the work box. A double-headed reverse threaded rod is rotatably installed in the middle of the frame. The outer surfaces of both ends of the double-headed reverse threaded rod are threaded with sliders. The surface of the slider away from the back of the work box is fixedly installed on the side of the support plate. The outer surface of the slider is slidably installed on the inner surface of the frame.

[0009] A long shaft is rotatably mounted on the inner surfaces of both sides of the working machine housing. The outer surface of the long shaft is sleeved with the middle of the support plate. Both ends of the long shaft are threaded, and the threads at both ends are reversed. Both ends of the long shaft are threaded to movable plates. Connecting rods are fixedly mounted on the surfaces of the tops of the two movable plates that are close to each other. Clamping plates are fixedly mounted on the ends of the two connecting rods that are close to each other. The outer surface of the connecting rod is slidably sleeved with the side of the working machine housing.

[0010] The long shaft has a limit frame on both ends. The side of the two limit frames that are close to each other is fixedly installed on the outer surface of both sides of the cabinet door. The inner surface of the limit frame is slidably installed on the outer surface of the bottom of the movable plate. The two clamping plates have a limit rod fixedly installed on the side that is far from each other. The outer surface of the limit rod is slidably sleeved with the inner surface of the side of the working machine box.

[0011] The long shaft has a transmission mechanism 1 sleeved on its outer surface. A motor 1 is fixedly installed on one side of the back of the machine housing. A transmission mechanism 2 is sleeved on the output end of the motor 1. The middle part of the transmission mechanism 2 passes through one side of the back of the machine housing. Two symmetrically arranged electric telescopic rods are fixedly sleeved on the middle part of the end of the transmission mechanism 2 away from the motor 1. Fixed plates are rotatably installed on the outer surfaces of the ends of the two electric telescopic rods that are far apart from each other, and cross columns are fixedly installed on the surfaces of the ends. The side of the fixed plate is fixedly installed on the inner wall of one side of the back of the machine housing.

[0012] The axis of the transmission mechanism one, which is away from the long shaft, the axis of the transmission mechanism two, which is away from the motor one, and the axis of the double-headed reverse threaded rod are located on the same straight line. The outer surfaces of the two cross pins are respectively movably connected to the middle part of the end of the transmission mechanism one away from the long shaft and the middle part of the end of the double-headed reverse threaded rod close to the motor one.

[0013] The top of the working machine box is equipped with a hydraulic cylinder, and a top plate is fixedly installed at the bottom of the hydraulic cylinder. The outer surface of the top plate is slidably installed with the inner wall of the working machine box, and an electric cross slide is fixedly installed on the lower surface of the top plate. A housing is installed at the bottom of the electric cross slide, and multiple drilling rigs are arranged on the side of the housing.

[0014] The inner surface of the outer shell is fixedly mounted with a second motor, and the output end of the second motor is fixedly sleeved with a main bevel gear. Inside the outer shell, a first bevel gear and a second bevel gear are rotatably mounted in sequence. The main bevel gear and the first bevel gear mesh with each other, and the first bevel gear and the second bevel gear mesh with each other. A connecting column is fixedly sleeved at the end of the second bevel gear. The outer surface of the top of the connecting column is rotatably mounted with the side of the outer shell. The surfaces of the multiple drilling rigs are fixedly mounted with the bottom end of the connecting column.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] In the above solution, by setting up structures such as a double-headed reverse threaded rod and a long shaft, when drilling the sheet metal, two support plates on the upper surface of the inner cavity in the middle of the machine housing can provide support for the sheet metal. Furthermore, by controlling the rotation of the long shaft, the two movable plates threaded at both ends of the long shaft move synchronously and slide along the inner wall of the limit frame, approaching each other. This causes the connecting rod connected to the top of the movable plate to slide along the side wall of the machine housing, pushing the clamping plate to clamp and fix the side edge of the sheet metal. In addition, when the support plate coincides with the hole to be drilled, the rotation of the double-headed reverse threaded rod can be controlled to make the two sliders threaded on it slide along the inner wall of the frame, causing the connected support plate to slide against the outer surface of the long shaft and the upper surface of the inner cavity in the middle of the machine housing, adjusting the support plate's offset from the drilling position of the sheet metal. Thus, by using the above structure, the positions of the support plate and the clamping plate can be adjusted by rotating the double-headed reverse threaded rod and the long shaft, respectively, to achieve the centering clamping or release of the sheet metal and flexibly adjust the position of the support plate at the bottom of the sheet metal to avoid damage.

[0017] In the above scheme, by setting up structures such as the main bevel gear, the extension and retraction of the hydraulic cylinder or the movement of the electric cross slide can be controlled during actual drilling to adjust the processing height, horizontal and vertical coordinates, and other parameters of the drilling machine, thereby improving processing flexibility. In addition, the second motor can be started, and the main bevel gear sleeved at its output end will rotate accordingly, driving the meshing driven bevel gear one to rotate. Driven bevel gear one will drive the meshing driven bevel gear two to rotate as well. The connecting column connected to the bottom end of driven bevel gear two will rotate along the side of the outer shell, driving multiple drilling machines mounted on the outer surface of its bottom end to rotate, realizing the switching of different drilling machines. Thus, by controlling the rotation angle of the main bevel gear and other structures, the rotation of the connecting column and the drilling machine set at the bottom end of the connecting column can be realized. In addition, according to different drilling diameter requirements, the appropriate drilling machine can be adjusted to a vertical processing position, which facilitates tool changing and improves processing efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the hydraulic cylinder, top plate, electric cross slide, etc. of this utility model;

[0020] Figure 3 This is a schematic diagram of the supporting plate, frame, double-ended reverse threaded rod, and other structures of this utility model;

[0021] Figure 4 For the present utility model Figure 3 A schematic diagram of the structure at point A;

[0022] Figure 5 This is a schematic diagram of the structure of the outer shell, motor 2, main bevel gear, etc. of this utility model.

[0023] [Figure Labels]

[0024] 1. Machine housing; 2. Cabinet door; 3. Support plate; 4. Frame; 5. Double-ended reverse threaded rod; 6. Slider; 7. Long shaft; 8. Limiting frame; 9. Movable plate; 10. Connecting rod; 11. Clamping plate; 12. Limiting rod; 13. Transmission mechanism one; 14. Motor one; 15. Transmission mechanism two; 16. Fixed plate; 17. Electric telescopic rod; 18. Cross column; 19. Hydraulic cylinder; 20. Top plate; 21. Electric cross slide; 22. Outer shell; 23. Motor two; 24. Main bevel gear; 25. Driven bevel gear one; 26. Driven bevel gear two; 27. Connecting column; 28. Drilling rig. Detailed Implementation

[0025] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments.

[0026] As attached Figure 1 To be continued Figure 5 An embodiment of this utility model provides a CNC planar drilling machine with automatic tool changing function, including...

[0027] The working machine housing 1 has a cabinet door 2 on one side of the front of the working machine housing 1. Two parallel support plates 3 are provided on the upper surface of the inner cavity in the middle of the working machine housing 1. The lower surface of the support plates 3 is slidably installed with the upper surface of the inner cavity in the middle of the working machine housing 1.

[0028] Frame 4, the side of frame 4 is fixedly installed on the inner wall of one side of the back of the working machine box 1, a double-headed reverse threaded rod 5 is rotatably installed in the middle of frame 4, and sliders 6 are threadedly connected to the outer surfaces of both ends of the double-headed reverse threaded rod 5. The surface of slider 6 away from the back of the working machine box 1 is fixedly installed on the side of the support plate 3, and the outer surface of slider 6 is slidably installed on the inner surface of frame 4.

[0029] The long shaft 7 is rotatably mounted on the inner surfaces of both sides of the working machine housing 1. The outer surface of the long shaft 7 is sleeved with the middle of the support plate 3. Both ends of the long shaft 7 are threaded, and the threads at both ends are reversed. Both ends of the long shaft 7 are threaded with movable plates 9. Connecting rods 10 are fixedly mounted on the surfaces of the tops of the two movable plates 9 that are close to each other. Clamping plates 11 are fixedly mounted on the ends of the two connecting rods 10 that are close to each other. The outer surface of the connecting rods 10 is slidably sleeved with the side of the working machine housing 1.

[0030] Among them, limit frames 8 are provided on the outside of both ends of the long shaft 7. The side of the two limit frames 8 that is close to each other is fixedly installed on the outer surface of both sides of the cabinet door 2. The inner surface of the limit frame 8 is slidably installed on the outer surface of the bottom of the movable plate 9. Limit rods 12 are fixedly installed on the surface of the side of the two clamping plates 11 that is far from each other. The outer surface of the limit rods 12 is slidably sleeved with the inner surface of the side of the working machine box 1.

[0031] Among them, the outer surface of the long shaft 7 is fitted with a transmission mechanism 13, a motor 14 is fixedly installed on one side of the back of the working machine box 1, the output end of the motor 14 is fitted with a transmission mechanism 2 15, the middle of the transmission mechanism 2 15 passes through one side of the back of the working machine box 1, and two symmetrically arranged electric telescopic rods 17 are fixedly fitted on the middle of the end of the transmission mechanism 2 15 away from the motor 14. The outer surfaces of the ends of the two electric telescopic rods 17 that are far away from each other are rotatably mounted with fixing plates 16, and the surfaces of the ends are fixedly mounted with cross posts 18. The side of the fixing plate 16 is fixedly installed with the inner wall of one side of the back of the working machine box 1.

[0032] Among them, the axis of the transmission mechanism 13 away from the long shaft 7, the axis of the transmission mechanism 2 15 away from the motor 14, and the axis of the double-headed reverse threaded rod 5 are located on the same straight line. The outer surfaces of the two cross columns 18 are respectively movably connected to the middle part of the end of the transmission mechanism 13 away from the long shaft 7 and the middle part of the end of the double-headed reverse threaded rod 5 close to the motor 14.

[0033] By setting up transmission mechanism 13 and transmission mechanism 2 15, both of which are common belt drive devices in the prior art, belt drive is a common mechanical transmission method that transmits power and motion through flexible belts and pulleys. Therefore, when motor 14 drives transmission mechanism 2 15 to rotate, the electric telescopic rod 17 located inside the pulley at the end away from motor 14 will rotate along the inside of the fixed plate 16.

[0034] By setting up the electric telescopic rod 17, before starting the motor 14, the electric telescopic rod 17 can be extended to push the cross post 18 installed at the end to be inserted into the middle of the pulley at the end of the transmission mechanism 13 away from the long shaft rod 7 or the middle of the end of the double-headed reverse threaded rod 5, thereby transmitting the power of the motor 14 to the double-headed reverse threaded rod 5 or to the long shaft rod 7 through the transmission mechanism 13.

[0035] By setting up structures such as motor 14, the power of motor 14 can be transmitted through transmission mechanism 2 15, electric telescopic rod 17 and other structures during actual driving operation. The double-headed reverse threaded rod 5 and long shaft rod 7 can be rotated separately, which reduces the number of driving devices to a certain extent, reduces costs and frees up space.

[0036] The top of the working machine box 1 is equipped with a hydraulic cylinder 19, and the bottom end of the hydraulic cylinder 19 is fixedly installed with a top plate 20. The outer surface of the top plate 20 is slidably installed with the inner wall of the working machine box 1, and an electric cross slide 21 is fixedly installed on the lower surface of the top plate 20. The bottom of the electric cross slide 21 is equipped with a housing 22, and multiple drilling rigs 28 are provided on the side of the housing 22.

[0037] Among them, a second motor 23 is fixedly installed on the inner surface of the outer shell 22, and a main bevel gear 24 is fixedly sleeved at the output end of the second motor 23. A first bevel gear 25 and a second bevel gear 26 are rotatably installed inside the outer shell 22. The main bevel gear 24 and the first bevel gear 25 mesh with each other, and the first bevel gear 25 and the second bevel gear 26 mesh with each other. A connecting post 27 is fixedly sleeved at the end of the second bevel gear 26. The outer surface of the top of the connecting post 27 is rotatably installed with the side of the outer shell 22. The surfaces of multiple drilling rigs 28 are fixedly installed with the bottom end of the connecting post 27.

[0038] By setting up multiple drill rigs 28 at the bottom of the connecting column 27, each with a different drill bit specification, and changing the drill bit by rotating the connecting column 27, it is convenient to drill holes of different sizes on the same sheet material, thereby improving efficiency.

[0039] The working process of this utility model is as follows:

[0040] When drilling holes in the sheet metal, two support plates 3 on the upper surface of the inner cavity in the middle of the machine housing 1 can be used to support the sheet metal. By controlling the rotation of the long shaft 7, the two movable plates 9 connected by threads at both ends of the long shaft 7 move synchronously and slide along the inner wall of the limit frame 8, and move closer to each other. This causes the connecting rod 10 connected to the top of the movable plate 9 to slide along the side wall of the machine housing 1, pushing the clamping plate 11 to clamp and fix the side edge of the sheet metal. In addition, when the support plate 3 coincides with the hole to be drilled, the rotation of the double-headed reverse threaded rod 5 can be controlled to make the two sliders 6 connected by threads on it slide along the inner wall of the frame 4, causing the connected support plate 3 to slide against the outer surface of the long shaft 7 and the upper surface of the inner cavity in the middle of the machine housing 1, adjusting the position of the support plate 3 away from the drilling position of the sheet metal.

[0041] During actual drilling, the extension and retraction of the hydraulic cylinder 19 or the movement of the electric cross slide 21 can be controlled to adjust the processing height, horizontal and vertical coordinates, and other parameters of the drilling machine 28, thereby improving processing flexibility. In addition, the second motor 23 can be started, and the main bevel gear 24 sleeved at its output end will rotate accordingly, driving the meshing driven bevel gear 25 to rotate. The driven bevel gear 25 will drive the meshing driven bevel gear 26 to rotate as well. The connecting column 27 connected to the bottom end of the driven bevel gear 26 will rotate along the side of the outer shell 22, driving the multiple drilling machines 28 mounted on the outer surface of its bottom end to rotate, thereby realizing the switching of different drilling machines 28.

[0042] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0043] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0044] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A CNC planar drilling machine with automatic tool changing function, characterized in that, include The work machine housing (1) has a cabinet door (2) on one side of the front of the work machine housing (1). The upper surface of the inner cavity in the middle of the work machine housing (1) is provided with two parallel support plates (3). The lower surface of the support plates (3) is slidably installed with the upper surface of the inner cavity in the middle of the work machine housing (1). A frame (4) is fixedly installed on the side of the frame (4) and the inner wall of the back side of the working machine box (1). A double-headed reverse threaded rod (5) is rotatably installed in the middle of the frame (4). A slider (6) is threadedly connected to the outer surfaces of both ends of the double-headed reverse threaded rod (5). The surface of the slider (6) away from the back side of the working machine box (1) is fixedly installed on the side of the support plate (3). The outer surface of the slider (6) is slidably installed on the inner surface of the frame (4). The long shaft (7) is rotatably mounted on the outer surface of the long shaft (7) and the inner surfaces of both sides of the working machine housing (1). The outer surface of the long shaft (7) is sleeved with the middle of the support plate (3). Both ends of the long shaft (7) are threaded, and the threads at both ends are reversed. Both ends of the long shaft (7) are threaded with movable plates (9). Connecting rods (10) are fixedly installed on the surfaces of the tops of the two movable plates (9) that are close to each other. Clamping plates (11) are fixedly installed on the ends of the two connecting rods (10) that are close to each other. The outer surface of the connecting rod (10) is slidably sleeved with the side of the working machine housing (1).

2. The numerically controlled planer drilling machine with automatic tool changing function according to claim 1, characterized in that, Limiting brackets (8) are provided on the outside of both ends of the long shaft (7). The side of the two limiting brackets (8) that are close to each other is fixedly installed on the outer surface of both sides of the cabinet door (2). The inner surface of the limiting bracket (8) is slidably installed on the outer surface of the bottom of the movable plate (9). Limiting rods (12) are fixedly installed on the surface of the side of the two clamping plates (11) that are far apart from each other. The outer surface of the limiting rod (12) is slidably sleeved with the inner surface of the side of the working machine box (1).

3. The numerically controlled planer drilling machine with automatic tool changing function according to claim 1, characterized in that, The outer surface of the long shaft (7) is fitted with a transmission mechanism one (13). A motor one (14) is fixedly installed on one side of the back of the working machine box (1). The output end of the motor one (14) is fitted with a transmission mechanism two (15). The middle part of the transmission mechanism two (15) penetrates one side of the back of the working machine box (1). Two symmetrically arranged electric telescopic rods (17) are fixedly fitted on the middle part of the end of the transmission mechanism two (15) away from the motor one (14). The outer surfaces of the ends of the two electric telescopic rods (17) that are far apart from each other are rotatably fitted with fixing plates (16), and the surfaces of the ends are fixedly fitted with cross columns (18). The side of the fixing plate (16) is fixedly installed on the inner wall of one side of the back of the working machine box (1).

4. The numerically controlled planer drilling machine with automatic tool changing function according to claim 3, characterized in that, The axis of the transmission mechanism one (13) away from the long shaft (7), the axis of the transmission mechanism two (15) away from the motor one (14), and the axis of the double-headed reverse threaded rod (5) are on the same straight line. The outer surfaces of the two cross columns (18) are respectively movably connected to the middle part of the end of the transmission mechanism one (13) away from the long shaft (7) and the middle part of the end of the double-headed reverse threaded rod (5) close to the motor one (14).

5. The numerically controlled planer drilling machine with automatic tool changing function according to claim 1, characterized in that, A hydraulic cylinder (19) is provided on the top of the working machine box (1). A top plate (20) is fixedly installed at the bottom of the hydraulic cylinder (19). The outer surface of the top plate (20) is slidably installed with the inner wall of the working machine box (1). An electric cross slide (21) is fixedly installed on the lower surface of the top plate (20). A housing (22) is installed at the bottom of the electric cross slide (21). Multiple drilling rigs (28) are provided on the side of the housing (22).

6. The numerically controlled planer drilling machine with automatic tool changing function according to claim 5, characterized in that, A second motor (23) is fixedly installed on the inner surface of the outer shell (22), and a main bevel gear (24) is fixedly sleeved at the output end of the second motor (23). A first bevel gear (25) and a second bevel gear (26) are rotatably installed inside the outer shell (22). The main bevel gear (24) meshes with the first bevel gear (25), and the first bevel gear (25) meshes with the second bevel gear (26). A connecting column (27) is fixedly sleeved at the end of the second bevel gear (26). The outer surface of the top of the connecting column (27) is rotatably installed with the side of the outer shell (22). The surfaces of the multiple drilling rigs (28) are fixedly installed with the bottom end of the connecting column (27).

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