Multi-hole-site automatic drilling device

Abstract

The utility model discloses a multi-hole automatic drilling device, which relates to the technical field of drilling machines, and comprises a bottom plate, a gear box is movably mounted at the top of the bottom plate, a plurality of groups of gear shafts are rotatably mounted in the gear box, tooth columns are fixedly mounted on the gear shafts, the tooth columns are meshed pairwise, and the gear shafts are fixedly mounted on the bottom plate. A movable shaft is arranged above each set of gear shafts, the movable shafts are movably installed on the gear box, transmission gears are fixedly installed on the movable shafts, and the transmission gears are meshed with the tooth columns below the transmission gears in a pairwise mode. According to the design scheme, through the design that the movable shafts are movably installed in the gear box, when a row of holes with different depths need to be machined, the positions of the movable shafts in each set are adjusted through the linear driving mechanism, the movable shafts can drive the drill bit assemblies to move when moving, the drilling depth of each set of drill bits is automatically adjusted, and the machining efficiency is improved. And drilling processing can be completed without replacing drill bits with different lengths, so that the processing efficiency and quality of products are effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling machines, in particular to an automatic drilling device for multiple holes. Background Art

[0002] A multi-hole drilling machine is a machine with multiple drill bits that can work together. There are single-row, triple-row, and six-row drill bits. Also known as a brush drill, a multi-hole drilling machine converts the traditional manual drilling action into a mechanical action, which is completed automatically by the machine.

[0003] The positions of the drill bits in each row of existing drilling machines are fixed, and they can usually only perform a single row of drilling with the same depth. When a row of holes of different depths needs to be processed, workers need to manually install drill bits of different lengths for processing. Since there are a large number of drill bits in each row, the process of replacing the drill bits each time is time-consuming and labor-intensive, and the drilling depth of each group of drill bits cannot be flexibly controlled, which affects the processing efficiency and quality of the product. Utility Model Content

[0004] In order to overcome the above-mentioned defects in the prior art, the utility model provides a multi-hole automatic drilling device.

[0005] The technical solution adopted by the utility model to solve its technical problems is: a multi-hole automatic drilling device, comprising a base plate, a gear box movably installed on the top of the base plate, a plurality of groups of gear shafts rotatably installed in the gear box, tooth columns fixedly installed on the gear shafts, the tooth columns meshing with each other in pairs, a movable shaft is provided above each group of the gear shafts, the movable shaft is movably installed on the gear box, a transmission gear is fixedly installed on the movable shaft, the transmission gears meshing with the tooth columns below them in pairs, a drill bit assembly is cooperated with the front end of the movable shaft, a plurality of groups of linear drive mechanisms are provided on the top of the gear box, the number of the linear drive mechanisms is consistent with the number of the movable shafts, and each group of the linear drive mechanisms is connected to the rear end of one group of the movable shafts.

[0006] Furthermore, the transmission gear is fixedly installed in the middle of the movable shaft, and mounting rings are slidably installed at both ends of the movable shaft. The two groups of mounting rings are rotatably installed on the front and rear side walls of the gear box respectively. Slide grooves are opened on the side walls at both ends of the movable shaft, and limit blocks matching the slide grooves are provided on the inner walls of the mounting rings.

[0007] Furthermore, connecting parts are provided on the two end surfaces of the movable shaft, and the drill assembly is fixedly mounted on the connecting parts at the front end.

[0008] Furthermore, the linear drive mechanism includes an electric telescopic rod, which is fixedly mounted on the top of the gear box. A push plate is fixedly mounted on the power output shaft of the electric telescopic rod. A turntable is fixedly mounted on the bottom end of the push plate close to the gear box. The turntable is fixedly connected to the connecting part at the rear end.

[0009] Furthermore, a first motor is fixedly mounted on the rear side wall of the gear box, and a power output shaft of the first motor is fixedly connected to one set of the gear shafts.

[0010] Furthermore, guide rails are fixedly installed on the left and right ends of the top of the base plate, and sliders are slidably installed on the guide rails, and the sliders are fixedly installed on the bottom of the gear box. A screw is provided between the two sets of guide rails, and the screw is rotatably installed on the base plate. A screw nut is installed on the screw, and the screw nut is fixedly installed on the bottom of the gear box. A second motor is fixedly installed on the rear end of the base plate, and a power output shaft of the second motor is fixedly connected to the screw.

[0011] The beneficial effect of the utility model is that the design of the utility model is that a movable shaft is movably installed in the gear box. When a row of holes of different depths needs to be processed, the position of each group of movable shafts is adjusted separately by the linear drive mechanism. When the movable shaft moves, it drives the drill bit assembly to move, automatically adjusting the drilling depth of each group of drill bits. The drilling process can be completed without replacing drill bits of different lengths, effectively improving the processing efficiency and quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0014] Figure 2 This is the main view of the utility model;

[0015] Figure 3 It is a left view of the utility model;

[0016] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure in the AA direction;

[0017] Figure 5 This is a schematic diagram of the internal structure of the gearbox of the utility model;

[0018] Figure 6 This is a schematic diagram of the connection between the movable shaft and the mounting ring of the utility model.

[0019] In the figure: 1. Base plate, 2. Gear box, 3. Gear shaft, 4. Gear column, 5. Movable shaft, 51. Slide groove, 52. Connecting part, 6. Transmission gear, 7. Mounting ring, 71. Limit block, 8. Drill assembly, 9. Electric telescopic rod, 10. Push plate, 11. Turntable, 12. First motor, 13. Guide rail, 14. Slider, 15. Screw, 16. Screw nut, 17. Second motor. DETAILED DESCRIPTION

[0020] In order to more clearly illustrate the technical solution of the present invention, the present invention is further described below in conjunction with the accompanying drawings. Obviously, the drawings described below are only one embodiment of the present invention. For ordinary technicians in this field, without paying any creative work, other embodiments can be obtained based on these drawings and embodiments, which all fall within the scope of protection of the present invention.

[0021] according to Figure 1-6 As shown, a multi-hole automatic drilling device includes a base plate 1, a gear box 2 is movably installed on the top of the base plate 1, and several groups of gear shafts 3 are rotatably installed in the gear box 2 through bearings. Tooth columns 4 are fixedly installed on the gear shafts 3, and the tooth columns 4 are meshed in pairs. A movable shaft 5 is provided above each group of the gear shafts 3, and the movable shaft 5 is movably installed on the gear box 2. A transmission gear 6 is fixedly installed on the movable shaft 5, and the transmission gear 6 is meshed in pairs with the tooth columns 4 below it. A drill bit assembly 8 is installed in cooperation with the front end of the movable shaft 5, and several groups of linear drive mechanisms are provided on the top of the gear box 2. The number of the linear drive mechanisms is consistent with the number of the movable shafts 5, and each group of the linear drive mechanisms is connected to the rear end of one group of the movable shafts 5.

[0022] In this embodiment, the transmission gear 6 is fixedly installed in the middle of the movable shaft 5, and mounting rings 7 are slidably installed at both ends of the movable shaft 5. The two groups of mounting rings 7 are respectively rotatably installed on the front and rear side walls of the gear box 2 through bearings. A sliding groove 51 is provided on the side walls at both ends of the movable shaft 5, and a limit block 71 matching the sliding groove 51 is provided on the inner wall of the mounting ring 7. The limit block 71 is installed in the sliding groove 51. When the movable shaft 5 rotates, the mounting ring 7 is driven to rotate synchronously with the cooperation of the limit block 71 and the sliding groove 51.

[0023] In this embodiment, connecting parts 52 are provided on the two end faces of the movable shaft 5, and the drill bit assembly 8 is fixedly mounted on the connecting part 52 at the front end by bolts. The drill bit assembly 8 is fixedly mounted on the movable shaft 5, and when the movable shaft 5 moves, it can drive the drill bit assembly 8 to move synchronously.

[0024] In this embodiment, the linear drive mechanism includes an electric telescopic rod 9, which is fixedly mounted on the top of the gear box 2 through a bracket. A push plate 10 is fixedly mounted on the power output shaft of the electric telescopic rod 9. A turntable 11 is fixedly mounted on the bottom end of the push plate 10 close to the side of the gear box 2. The turntable 11 is fixedly connected to the connecting portion 52 at the rear end by bolts. When drilling, the movable shaft 5 rotates relative to the push plate 10 through the turntable 11. The electric telescopic rod 9 drives the movable shaft 5 to move back and forth on the gear box 2 through the push plate 10. When the movable shaft 5 moves, the transmission gear 6 moves along the gear column 4.

[0025] In this embodiment, a first motor 12 is fixedly mounted on the rear side wall of the gear box 2 via a motor bracket. The power output shaft of the first motor 12 is fixedly connected to the rightmost gear shaft 3 via a coupling. The first motor 12 drives the gear shaft 3 connected thereto to rotate, and the remaining gear shafts 3 rotate in pairs in cooperation with the gear columns 4.

[0026] In this embodiment, guide rails 13 are fixedly installed on the left and right ends of the top of the base plate 1, and sliders 14 are slidably installed on the guide rails 13. The sliders 14 are fixedly installed on the bottom of the gear box 2. A screw 15 is provided between the two groups of guide rails 13. The screw 15 is rotatably installed on the base plate 1 through a bearing seat. A screw nut 16 is installed on the screw 15, and the screw nut 16 is fixedly installed on the bottom of the gear box 2. The rear end of the base plate 1 is fixedly installed with a second motor 17 through a motor bracket. The power output shaft of the second motor 17 is fixedly connected to the screw 15 through a coupling. The screw 15 is driven to rotate by the second motor 17. Under the cooperation of the screw 15 and the screw nut 16, the gear box 2 is moved along the guide rails 13, so that the drill head assembly 8 approaches the workpiece for drilling.

[0027] When the present invention is in use, the position of each group of movable shafts 5 is first adjusted by the electric telescopic rod 9 according to the processing requirements, so as to adjust the extension length of each group of drill bit assembly 8, and then the first motor 12 is started. The first motor 12 drives the gear shaft 3 connected thereto to rotate, and the remaining gear shafts 3 rotate in pairs under the cooperation between the gear columns 4. At the same time, the movable shaft 5 is driven to rotate under the cooperation of the gear column 4 and the transmission gear 6. When the movable shaft 5 rotates, it will drive the drill bit assembly 8 to rotate synchronously. Then, the gear box 2 is driven by the second motor 17 to move along the guide slide rail 13, so that the drill bit assembly 8 approaches the workpiece for drilling processing.

[0028] The above embodiments are merely exemplary embodiments of the present invention and are not intended to limit the scope of the present invention. The scope of protection of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the spirit and scope of protection of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the scope of protection of the present invention.

Claims

1. A multi-hole automatic drilling device, comprising a base plate (1), characterized in that: A gear box (2) is movably mounted on the top of the base plate (1), and a plurality of groups of gear shafts (3) are rotatably mounted in the gear box (2). A tooth column (4) is fixedly mounted on the gear shaft (3), and the tooth columns (4) are meshed with each other in pairs. A movable shaft (5) is provided above each group of the gear shafts (3), and the movable shaft (5) is movably mounted on the gear box (2). A transmission gear (6) is fixedly mounted on the movable shaft (5), and the transmission gear (6) is meshed with the tooth column (4) below it in pairs. A drill assembly (8) is cooperatively mounted on the front end of the movable shaft (5). A plurality of groups of linear drive mechanisms are provided on the top of the gear box (2), and the number of the linear drive mechanisms is consistent with that of the movable shafts (5). Each group of the linear drive mechanisms is connected to the rear end of one group of the movable shafts (5).

2. The multi-hole automatic drilling device according to claim 1, characterized in that: The transmission gear (6) is fixedly mounted on the middle of the movable shaft (5), and mounting rings (7) are slidably mounted on both ends of the movable shaft (5). Two groups of mounting rings (7) are rotatably mounted on the front and rear side walls of the gear box (2), respectively. Slide grooves (51) are provided on the side walls at both ends of the movable shaft (5), and a limit block (71) matching the slide groove (51) is provided on the inner wall of the mounting ring (7).

3. The multi-hole automatic drilling device according to claim 2, characterized in that: Connecting parts (52) are provided on the two end surfaces of the movable shaft (5), and the drill assembly (8) is fixedly mounted on the connecting parts (52) at the front end.

4. The multi-hole automatic drilling device according to claim 3, characterized in that: The linear drive mechanism comprises an electric telescopic rod (9), the electric telescopic rod (9) being fixedly mounted on the top of the gear box (2), a push plate (10) being fixedly mounted on the power output shaft of the electric telescopic rod (9), a turntable (11) being fixedly mounted on the bottom end of the push plate (10) close to the side of the gear box (2), and the turntable (11) being fixedly connected to the connecting portion (52) at the rear end.

5. The multi-hole automatic drilling device according to claim 1, characterized in that: A first motor (12) is fixedly mounted on the rear side wall of the gear box (2), and a power output shaft of the first motor (12) is fixedly connected to one set of the gear shafts (3).

6. The multi-hole automatic drilling device according to any one of claims 1 to 5, characterized in that: Guide rails (13) are fixedly installed at the left and right ends of the top of the base plate (1), and a slider (14) is slidably installed on the guide rails (13). The slider (14) is fixedly installed on the bottom of the gear box (2). A lead screw (15) is provided between the two groups of guide rails (13). The lead screw (15) is rotatably installed on the base plate (1). A lead screw nut (16) is matched with the lead screw (15). The lead screw nut (16) is fixedly installed on the bottom of the gear box (2). A second motor (17) is fixedly installed at the rear end of the base plate (1), and a power output shaft of the second motor (17) is fixedly connected to the lead screw (15).

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