Numerical control drilling device

Abstract

The utility model relates to the technical field of machining equipment, and discloses a numerical control drilling device which comprises a positioning turnover mechanism, the positioning turnover mechanism comprises two vertical plates, a fixed bracket and a movable bracket, the fixed bracket and the movable bracket are both rotationally connected with first lead screws, the fixed bracket and the movable bracket are both fixedly provided with first servo motors, and the first lead screws are connected with second lead screws. The two sides of the first lead screw are in threaded connection with clamping plates, the bottom of the movable bracket is provided with movable plates, the vertical plates are rotationally connected with second lead screws, one of the vertical plates is provided with a second servo motor, the two sides of the second lead screws are in threaded connection with movable blocks, the two movable frames are each provided with a vertical frame, the vertical frames are rotationally connected with third lead screws, and the tops of the vertical frames are provided with fifth servo motors. The third lead screw is in threaded connection with a lifting block, a push frame is installed on the lifting block, a third servo motor is installed on the push frame and connected with a thumb clamping air cylinder through an installation plate, two clamping plates are installed on the thumb clamping air cylinder, and an L-shaped positioning piece is installed on the thumb clamping air cylinder.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of machining equipment, specifically a numerical control drilling device. BACKGROUND

[0002] Square tube is a kind of hollow square cross-section light thin-walled steel tube, also called steel cold-bending section. It is a kind of section steel with square cross-section shape size, which is made of Q235 hot-rolled or cold-rolled strip steel or coil plate as the base material after cold bending processing and high-frequency welding. Except for the thickening of the wall thickness, the corner size and the straightness of the edge of the hot-rolled thick-walled square tube meet or even exceed the level of the resistance-welded cold-formed square tube. In the existing square tube processing, drilling device is often needed for drilling.

[0003] Through the search, a square tube side drilling device is disclosed in the publication number CN207577475U, which mainly has the following characteristics: it includes a supporting table, a limiting mechanism, a turnover mechanism and a drilling mechanism. The turnover mechanism includes symmetrically arranged first and second turnover assemblies. The supporting table is located between the first and second turnover assemblies. The limiting mechanism is located on the top of the supporting table. The first and second turnover assemblies are structurally identical and each includes a first lifting assembly, a supporting assembly, a rotating assembly and a clamping assembly for clamping the workpiece. The first lifting assembly is located on the top of the supporting assembly. The rotating assembly and the clamping assembly are located at the end of the first lifting assembly close to the supporting table. The limiting mechanism includes four limiting blocks and symmetrically arranged first and second limiting assemblies. The four limiting blocks are located on the top of the supporting table and are arranged in a matrix. The drilling mechanism includes a second lifting assembly and a drilling assembly located directly above the supporting table. The second lifting assembly includes symmetrically arranged third and fourth lifting assemblies on both sides of the supporting table.

[0004] In the above-mentioned square tube numerical control drilling device, the applicant found that the distance between the two turnover structures is fixed, so that only one length of square tube can be worked on. The versatility of the turnover drilling device is not good. In order to solve the above-mentioned problem, a numerical control drilling device is provided. UTILITY MODEL CONTENTS

[0005] The utility model aims at: in order to solve the above-mentioned problem, provide a kind of numerical control drilling device.

[0006] The technical scheme adopted by the utility model is as follows: a numerical control drilling device, comprising:

[0007] A base table is provided.

[0008] A drilling assembly is installed on the base table.

[0009] The positioning turnover mechanism comprises two vertical plates, a fixed bracket and two movable brackets, the vertical plates and the fixed bracket are fixedly installed on the base table, a lead screw one is rotationally connected to the fixed bracket and the movable bracket, a servo motor one is fixedly installed on the fixed bracket and the movable bracket, the servo motor one is connected with the lead screw one through an output shaft, clamping plates are threadedly connected to the two sides of the lead screw one, a moving plate is fixedly installed at the bottom of the movable bracket, a lead screw two is rotationally connected to the vertical plate, a servo motor two is fixedly installed on one of the vertical plates, the servo motor two is connected with the lead screw two through an output shaft, movable blocks are threadedly connected to the two sides of the lead screw two, the moving plate is fixedly installed on the movable blocks, vertical frames are fixedly installed on the two moving frames, a lead screw three is rotationally connected to the vertical frame, a servo motor five is fixedly installed at the top of the vertical frame, the output shaft of the servo motor five is connected with the lead screw three, a lifting block is threadedly connected to the lead screw three, a pushing frame is fixedly installed on the lifting block, a servo motor three is fixedly installed on the pushing frame, an installation plate is fixedly installed on the output shaft of the servo motor three, a thumb clamping cylinder is fixedly installed on the installation plate, clamping plates are fixedly installed on the two clamping fingers of the thumb clamping cylinder, and an L-shaped positioning piece is installed on the thumb clamping cylinder.

[0010] In a preferred embodiment, the two sides of the lead screw one and the lead screw two are provided with external threads in opposite directions.

[0011] In a preferred embodiment, the bottom of the fixed bracket and the movable bracket is provided with a movable hole, the clamping plate penetrates through the movable hole, a guide rod is fixedly installed on the fixed bracket and the movable bracket, and the clamping plate is slidingly connected with the guide rod in a guided mode.

[0012] In a preferred embodiment, the bottom of the moving plate is fixedly installed with two sliding blocks one on the front and back sides, the top surface of the base table is fixedly installed with two guide rails one, and the sliding blocks one are slidingly connected with the guide rails one.

[0013] In a preferred embodiment, the lifting block is fixedly installed with a sliding block two, the vertical frame is fixedly installed with a guide rail two, and the sliding block two is slidingly connected with the guide rail two.

[0014] In a preferred embodiment, the drilling assembly comprises a door frame fixedly installed on the base, a mounting frame fixedly installed on the door frame, a lead screw four rotationally connected to the mounting frame, a servo motor four fixedly installed on the mounting frame, an output shaft of the servo motor four connected with the lead screw four, a moving block threadedly connected to the lead screw four, a moving frame fixedly installed on the moving block, an electric push rod fixedly installed on the top of the moving frame, a lifting frame fixedly installed on the piston rod end of the electric push rod, a rotary motor fixedly installed on the lifting frame, a drill bit clamp seat fixedly installed on the output shaft of the rotary motor, and a drill bit clamped and fixed on the drill bit clamp seat.

[0015] In a preferred embodiment, the back of the moving frame is fixedly installed with a sliding block three, and the mounting frame is fixedly installed with a guide rail three, and the sliding block three is in sliding connection with the guide rail three.

[0016] In a preferred embodiment, the back upper portion of the lifting frame is fixedly installed with two sliding blocks four, the moving frame is fixedly installed with two guide rails four, and the sliding blocks four are in sliding connection with the guide rails four.

[0017] In summary, due to the adoption of the above technical solutions, the present application has the following advantages:

[0018] 1. The turnover structure of the square tube in the present application can automatically turn over and drill different lengths and different cross-sectional widths of square tubes, thereby improving the universal adaptability of the equipment and further improving the practicality of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a schematic diagram of the three-dimensional structure of the present application;

[0020] Figure 2 is a schematic diagram of the front view structure of the present application;

[0021] Figure 3 is a schematic diagram of the structure of the lead screw clamping assembly in the present application;

[0022] Figure 4 is an enlarged view of A in the present application. Figure 1

[0023] ​Markings in the diagram: 1-Base platform, 2-Drilling assembly, 3-Positioning and flipping mechanism, 4-Vertical plate, 5-Fixed bracket, 6-Moving bracket, 7-Lead screw one, 8-Servo motor one, 9-Clamping plate, 10-Moving plate, 11-Lead screw two, 12-Servo motor two, 13-Vertical frame, 14-Lead screw three, 15-Lifting block, 16-Push frame, 17-Servo motor three, 18-Mounting plate, 19-Thumb clamping cylinder, 20-Clamping plate, 21-L-shaped positioning component, 22-Modible hole 23-Guide rod, 24-Slider 1, 25-Guide rail 1, 26-Slider 2, 27-Guide rail 2, 28-Gantry frame, 29-Mounting bracket, 30-Screw 4, 31-Servo motor 4, 32-Moving block, 33-Moving frame, 34-Electric actuator, 35-Lifting frame, 36-Rotary motor, 37-Drill bit chuck, 38-Drill bit, 39-Slider 3, 40-Guide rail 3, 41-Slider 4, 42-Guide rail 4, 43-Servo motor 5, 44-Moving block. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] The following will combine Figures 1-4 A detailed description of a CNC drilling device according to an embodiment of the present invention will be provided.

[0026] Example:

[0027] This utility model provides a CNC drilling device, which is referenced in the embodiment of the present invention. Figures 1 to 4 As shown, it includes:

[0028] Base 1;

[0029] Drilling assembly 2 is mounted on base 1;

[0030] Positioning and flipping mechanism 3 is installed on base platform 1;

[0031] In the above structure, the positioning and flipping mechanism 3 is used to clamp the square tube, and then the drilling assembly 2 is used to drill holes in the square tube. The positioning and flipping mechanism 3 can automatically flip the square tube so as to drill holes on different sides of the square tube.

[0032] refer to Figures 1 to 4As shown, the positioning and overturning mechanism 3 comprises two vertical plates 4, a fixed bracket 5 and two movable brackets 6, the vertical plates 4 and the fixed bracket 5 are fixedly installed on the base table 1, the fixed bracket 5 and the movable bracket 6 are both rotationally connected with a lead screw one 7, the fixed bracket 5 and the movable bracket 6 are both fixedly installed with a servo motor one 8, the servo motor one 8 is connected with the lead screw one 7 through an output shaft, both sides of the lead screw one 7 are threadedly connected with clamping plates 9, the bottom of the movable bracket 6 is fixedly installed with a moving plate 10, the vertical plate 4 is rotationally connected with a lead screw two 11, one of the vertical plates 4 is fixedly installed with a servo motor two 12, the servo motor two 12 is connected with the lead screw two 11 through an output shaft, both sides of the lead screw two 11 are threadedly connected with movable blocks 44, the moving plate 10 is fixedly installed on the movable blocks 44, both of the moving plates 10 are fixedly installed with vertical supports 13, the vertical supports 13 are rotationally connected with a lead screw three 14, the top of the vertical support 13 is fixedly installed with a servo motor five 43, the output shaft of the servo motor five 43 is connected with the lead screw three 14, the lead screw three 14 is threadedly connected with a lifting block 15, the lifting block 15 is fixedly installed with a push support 16, the push support 16 is fixedly installed with a servo motor three 17, an installation plate 18 is fixedly installed on the output shaft of the servo motor three 17, a thumb clamping cylinder 19 is fixedly installed on the installation plate 18, clamping plates 20 are fixedly installed on both clamping fingers of the thumb clamping cylinder 19, an L-shaped positioning piece 21 is installed on the thumb clamping cylinder 19, this structure places the square tube to be drilled on the fixed bracket 5 and the movable bracket 6, at this time, the L-shaped positioning piece 21 on the thumb clamping cylinder 19 is used to position the action position of the square tube, then the servo motor one 8 is started to drive the two clamping plates 9 on the lead screw one 7 to approach and clamp the square tube, so that the square tube can be positioned and fixed, then the drilling assembly 2 can be used to drill the square tube, and the above-mentioned clamping and fixing device can clamp and process square tubes of different widths, and has good universality;

[0033] When different faces of the square tube need to be drilled, at this time, the two thumb clamping cylinders 19 are started to drive the two clamping plates 20 to clamp the two ends of the square tube, then the two servo motors five 43 are started synchronously to drive the push support 16 on the lifting block 15 to move upwards, thereby driving the square tube on the thumb clamping cylinder 19 to move upwards, then the servo motor three 17 is started to drive the square tube on the thumb clamping cylinder 19 to rotate by a fixed angle, so that different faces of the square tube are upwards, then the servo motor five 43 is started in reverse to drive the square tube to move downwards, and at this time, the servo motor five 43 will adjust the lifting position of the square tube according to the width difference of the square tube, so that the square tube is placed on the fixed bracket 5 and the movable bracket 6, then the clamping operation can be repeated, and then the drilling operation can be repeated again;

[0034] Wherein the structure according to the length of the square tube drilled, the servo motor two 12 can drive the screw rod two 11 to rotate, so as to drive the two movable blocks 44 to move in opposite directions, so as to adjust the distance between the two movable blocks 6 and the thumb clamping cylinder 19, so as to adjust the length of the square tube, and then the square tube of different lengths can be drilled, the versatility of the equipment is improved, and the practicability of the equipment is increased.

[0035] It should be noted that the control electromagnetic valves of the servo motor one 8, the servo motor two 12, the servo motor three 17, the servo motor five 43 and the thumb clamping cylinder 19 are connected to the PLC control end of the numerical control machine, and the program of the PLC control end is used to control the cooperative operation, and the specific control equipment and program are disclosed, so that the specific control equipment and program are not introduced here.

[0036] Reference Figures 1 to 4 As shown, the two sides of the screw rod one 7 and the screw rod two 11 are provided with external threads in opposite directions, and the structure can drive the two clamping plates 9 on the screw rod one 7 to move in opposite directions, and the two movable blocks 44 on the screw rod two 11 can also move in opposite directions.

[0037] Reference Figures 1 to 4 As shown, the bottom of the fixed bracket 5 and the movable bracket 6 is provided with a movable hole 22, the clamping plate 9 penetrates the movable hole 22, the fixed bracket 5 and the movable bracket 6 are fixedly installed with a guide rod 23, and the clamping plate 9 is slidably connected with the guide rod 23, the movable hole 22 facilitates the clamping plate 9 to penetrate the top of the fixed bracket 5 and the movable bracket 6, and the guide rod 23 can guide the movement of the clamping plate 9.

[0038] Reference Figures 1 to 4 As shown, the bottom of the moving plate 10 is fixedly installed with two sliding blocks one 24, the top surface of the base table 1 is fixedly installed with two guide rails one 25, and the sliding blocks one 24 are slidably connected with the guide rails one 25, the sliding blocks one 24 and the guide rails one 25 can guide the movement of the moving plate 10.

[0039] Reference Figures 1 to 4 As shown, the lifting block 15 is fixedly installed with a sliding block two 26, the vertical frame 13 is fixedly installed with a guide rail two 27, and the sliding block two 26 is slidably connected with the guide rail two 27, the sliding block two 26 and the guide rail two 27 can guide the up-down movement of the lifting block 15.

[0040] Reference Figures 1 to 4As shown, the drilling assembly 2 comprises a door frame 28 fixedly installed on the base table 1, a mounting frame 29 fixedly installed on the door frame 28, a lead screw four 30 rotatably connected to the mounting frame 29, a servo motor four 31 fixedly installed on the mounting frame 29, the output shaft of the servo motor four 31 connected with the lead screw four 30, a moving block 32 threadedly connected to the lead screw four 30, a moving frame 33 fixedly installed on the moving block 32, an electric push rod 34 fixedly installed on the top of the moving frame 33, a lifting frame 35 fixedly installed on the piston rod end of the electric push rod 34, a rotary motor 36 fixedly installed on the output shaft of the rotary motor 36, a drill chuck 37 fixedly installed on the rotary motor 36, and a drill bit 38 clamped and fixed on the drill chuck 37. In this structure, the rotary motor 36 is started to drive the drill bit 38 on the drill chuck 37 to rotate, and then the servo motor four 31 is started in forward and reverse directions to drive the lead screw four 30 to rotate in forward and reverse directions, so as to drive the moving frame 33 on the moving block 32 to move left and right, thereby adjusting the left and right positions of the drill bit 38. When the left and right positions are determined, the electric push rod 34 is started to drive the lifting frame 35 to move downward, thereby driving the drill bit 38 to move downward to drill the pipe.

[0041] It should be noted that the servo motor four 31, the electric push rod 34 and the rotary motor 36 are all externally connected to the PLC control end of the numerical control machine, and the program of the PLC control end is used to control their cooperative operation. The specific control device and program are already disclosed, and therefore will not be described in detail here.

[0042] Reference Figures 1 to 4 As shown, the back of the moving frame 33 is fixedly installed with a sliding block three 39, the mounting frame 29 is fixedly installed with a guide rail three 40, and the sliding block three 39 is in sliding connection with the guide rail three 40. This structure utilizes the sliding block three 39 and the guide rail three 40 to guide the movement of the moving frame 33.

[0043] Reference Figures 1 to 4 As shown, the back upper portion of the lifting frame 35 is fixedly installed with two sliding blocks four 41, the moving frame 33 is fixedly installed with two guide rails four 42, and the sliding blocks four 41 are in sliding connection with the guide rails four 42. This structure utilizes the sliding blocks four 41 and the guide rails four 42 to guide the upward and downward movement of the lifting frame 35.

[0044] The implementation principle of the numerical control drilling device in the embodiment of the application is as follows: in use, the length of the square tube that needs to be drilled is used to start the servo motor two 12 to drive the screw rod two 11 to rotate, so as to drive the two movable blocks 44 to move in opposite directions, so as to adjust the spacing between the two movable carriages 6 and the thumb clamping cylinders 19, and make the spacing between the two L-shaped positioning members 21 adapt to the length of the square tube, then the square tube is placed on the fixed carriage 5 and the movable carriage 6, at this time, the L-shaped positioning members 21 on the thumb clamping cylinders 19 are used to position the action position of the square tube, then the servo motor one 8 is started to drive the two clamping plates 9 on the screw rod one 7 to move close to and clamp the square tube, so as to conveniently position and fix the square tube, then the rotary motor 36 is started to drive the drill bit 38 on the drill bit clamping seat 37 to rotate, then the servo motor four 31 is started in forward and reverse directions to drive the screw rod four 30 to rotate in forward and reverse directions, so as to drive the moving frame 33 on the moving block 32 to move left and right, and then adjust the left and right positions of the drill bit 38, when the left and right positions are determined, the electric push rod 34 is started to drive the lifting frame 35 to move downward, so as to drive the drill bit 38 to move downward to the square tube to drill, when it is needed to drill the other side of the square tube, at this time, the two thumb clamping cylinders 19 are started to drive the two clamping plates 20 to clamp the two ends of the square tube, then the two servo motors five 43 are started synchronously to drive the push frame 16 on the lifting block 15 to move upward, so as to drive the square tube on the thumb clamping cylinder 19 to move upward, then the servo motor three 17 is started to drive the square tube on the thumb clamping cylinder 19 to rotate and fix the angle, so as to make different sides of the square tube face upward, then the servo motor five 43 is started in reverse to drive the square tube to move downward, and at this time, the servo motor five 43 will adjust the upward and downward positions of the square tube according to the width difference of the square tube, so as to place the square tube on the fixed carriage 5 and the movable carriage 6, then the clamping operation can be repeated, then the drilling operation is repeated again, so as to drill different sides of the square tube.

[0045] The above embodiments are only used to illustrate the technical solutions of the application, but not limit the application; although the application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the application.

Claims

1. A CNC drilling device, characterized in that, include: Platform (1); Drilling assembly (2), which is mounted on the base (1); The positioning and flipping mechanism (3) includes two vertical plates (4), a fixed bracket (5), and two movable brackets (6). The vertical plates (4) and the fixed brackets (5) are fixedly installed on the base (1). A lead screw (7) is rotatably connected to both the fixed bracket (5) and the movable brackets (6). A servo motor (8) is fixedly installed on both the fixed bracket (5) and the movable brackets (6). The servo motor (8) is connected to the lead screw (7) through an output shaft. Clamping plates (9) are threaded on both sides of the lead screw (7). A sliding plate (10) is fixedly installed at the bottom of the movable brackets (6). A second lead screw (11) is rotatably connected to the vertical plates (4). A second servo motor (12) is fixedly installed on one of the vertical plates (4). The second servo motor (12) is connected to the second lead screw (11) through an output shaft. The second lead screw (11) is threaded on both sides. There is a movable block (44), and the moving plate (10) is fixedly installed on the movable block (44). A vertical frame (13) is fixedly installed on each of the two moving plates (10). A lead screw (14) is rotatably connected to the vertical frame (13). A servo motor (43) is fixedly installed on the top of the vertical frame (13). The output shaft of the servo motor (43) is connected to the lead screw (14). A lifting block (15) is threaded onto the lead screw (14). A pusher (16) is fixedly installed on the lifting block (15), a servo motor (17) is fixedly installed on the pusher (16), an mounting plate (18) is fixedly installed on the output shaft of the servo motor (17), a thumb clamping cylinder (19) is fixedly installed on the mounting plate (18), a clamping plate (20) is fixedly installed on the two clamping fingers of the thumb clamping cylinder (19), and an L-shaped positioning component (21) is installed on the thumb clamping cylinder (19).

2. The CNC drilling device as described in claim 1, characterized in that: Both sides of the lead screw one (7) and the lead screw two (11) are provided with external threads in opposite directions.

3. The CNC drilling device as described in claim 1, characterized in that: The bottom of both the fixed bracket (5) and the movable bracket (6) is provided with a movable hole (22), and the clamping plate (9) passes through the movable hole (22). Both the fixed bracket (5) and the movable bracket (6) are fixedly installed with guide rods (23), and the clamping plate (9) and the guide rods (23) are slidably connected.

4. The CNC drilling device as described in claim 1, characterized in that: Two sliders (24) are fixedly installed on the front and rear sides of the bottom of the sliding plate (10), and two guide rails (25) are fixedly installed on the top surface of the base (1). The sliders (24) are slidably connected to the guide rails (25).

5. The CNC drilling device as described in claim 1, characterized in that: A second slider (26) is fixedly installed on the lifting block (15), and a second guide rail (27) is fixedly installed on the vertical frame (13). The second slider (26) is slidably connected to the second guide rail (27).

6. The CNC drilling device as described in claim 1, characterized in that: The drilling assembly (2) includes a gantry frame (28), which is fixedly mounted on the base (1). A mounting bracket (29) is fixedly mounted on the gantry frame (28). A lead screw (30) is rotatably connected to the mounting bracket (29). A servo motor (31) is fixedly mounted on the mounting bracket (29). The output shaft of the servo motor (31) is connected to the lead screw (30). A threaded connection is made to the lead screw (30). A moving block (32) is fixedly mounted on the moving block (32), a moving frame (33) is fixedly mounted on the top of the moving frame (33), an electric push rod (34) is fixedly mounted on the piston rod end of the electric push rod (34), a lifting frame (35) is fixedly mounted on the lifting frame (35), a rotary motor (36) is fixedly mounted on the lifting frame (35), a drill bit chuck (37) is fixedly mounted on the output shaft of the rotary motor (36), and a drill bit (38) is clamped and fixed on the drill bit chuck (37).

7. The CNC drilling device as described in claim 6, characterized in that: A slider three (39) is fixedly installed on the back of the moving frame (33), and a guide rail three (40) is fixedly installed on the mounting frame (29). The slider three (39) is slidably connected to the guide rail three (40).

8. A CNC drilling device as described in claim 6, characterized in that: Two sliders (41) are fixedly installed on the upper back of the lifting frame (35), and two guide rails (42) are fixedly installed on the moving frame (33). The sliders (41) are slidably connected to the guide rails (42).

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