Automatic drilling device of numerical control lathe

Abstract

The utility model relates to an automatic drilling device of a numerically controlled lathe, which belongs to the technical field of numerically controlled lathes and comprises a lathe body, a spindle box, a knife rest, a tailstock, a screw and a slide bar, a chuck is mounted at the output end of the spindle box, a clamp is mounted at the top of the knife rest, a mounting shaft is mounted in the tailstock, and a screw is mounted on the mounting shaft. A drill bit and a rotating disc are installed at the two ends of the installation shaft correspondingly, and a rotating mechanism is installed at the end, away from the spindle box, of the lathe bed. According to the drilling machine, the rotating mechanism and the transmission mechanism are used in cooperation, when the rotating disc needs to be rotated to enable a drill bit to be fed into a workpiece to conduct drilling on the workpiece, the rotating mechanism is connected with the rotating disc through the transmission mechanism, then the rotating mechanism can be started to enable the rotating disc to rotate, and then the drill bit is automatically fed into the workpiece; and compared with a traditional manual mode, the burden of personnel is relieved, the feeding amount of the drill bit is continuous and stable, and therefore the workpiece drilling machining efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of numerically controlled lathes, and in particular relates to an automatic drilling device for a numerically controlled lathe. Background Art

[0002] A CNC lathe, that is, a lathe controlled by a computer, is a highly efficient automated equipment that automatically processes workpieces according to a pre-programmed CNC program. CNC lathes are mainly used for cutting inner and outer cylindrical surfaces of shaft parts or disc parts, inner and outer conical surfaces of arbitrary taper angles, complex rotary inner and outer curved surfaces, and cylindrical and conical threads, and can perform grooving, drilling, reaming, boring and boring, etc. The working principle of a CNC lathe is to compile the processing route, process parameters, tool motion trajectory, displacement, cutting parameters and auxiliary functions of the parts into a processing program sheet in accordance with the instruction code and program format specified by the CNC lathe, and then record the contents of this program sheet on the control medium, and then input it into the CNC device of the CNC lathe, thereby directing the lathe to process parts.

[0003] At present, when a CNC lathe is drilling a hole in a workpiece, a worker is required to manually rotate the turntable to feed the drill into the workpiece to drill the hole. Although the worker can also achieve the purpose of drilling the workpiece by manually rotating the turntable, it increases the labor burden of the worker. Moreover, since the turntable is rotated when drilling the workpiece, the burden of feeding the drill is greater, which affects the efficiency of drilling the workpiece. Based on this, an automatic drilling device for a CNC lathe is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide an automatic drilling device for a CNC lathe with a simple structure and reasonable design in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] An automatic drilling device for a CNC lathe comprises a bed, a spindle box, a tool holder, a tailstock, a screw and a slide rod, wherein a chuck is mounted on the output end of the spindle box, a fixture is mounted on the top of the tool holder, a mounting shaft is mounted in the tailstock, a drill bit and a turntable are mounted on both ends of the mounting shaft, a rotating mechanism is mounted on the end of the bed away from the spindle box, a transmission mechanism is connected to the output end of the rotation mechanism, and the transmission mechanism is adapted to the turntable.

[0007] As a further optimized solution of the present utility model, the rotating mechanism includes a motor installed at one end of the bed body far from the headstock. The output end of the motor is fixedly connected with a rotating shaft. One end of the rotating shaft far from the motor is fixedly connected with a first sprocket. A chain is installed on the outer surface of the first sprocket. One end of the bed body far from the headstock is rotatably connected with a rotating rod. A transmission gear is fixedly connected to the outer surface of the rotating rod. One end of the rotating rod is fixedly connected with a second sprocket. The second sprocket is adapted to the chain. One end of the bed body far from the headstock is rotatably connected with a rotating gear. A feed rod is slidably connected inside the rotating gear. The rotating gear is meshed with the transmission gear.

[0008] As a further optimized solution of the present utility model, the feed rod is arranged in a hexagonal prism shape. The part of the rotating gear where the feed rod is slidably connected is arranged in a hexagonal shape. The outer surface of the feed rod is adapted to the inner surface of the rotating gear.

[0009] As a further optimized solution of the present utility model, the transmission mechanism includes a locking disk attached to one side of the turntable far from the mounting shaft. A locking column is fixedly connected to the side of the locking disk close to the turntable. The locking column is adapted to the turntable. A plug rod is fixedly connected to the side of the locking disk far from the turntable. A locking rod is fixedly connected to the end of the plug rod. A slot is opened at one end of the feed rod close to the locking disk. The slot is adapted to the plug rod. An L-shaped groove is opened on the inner wall of the slot. The L-shaped groove is adapted to the locking rod.

[0010] As a further optimized solution of the present utility model, three locking rods are arranged in an annular equidistant array along the central axis of the plug rod, and three L-shaped grooves are arranged in an annular equidistant array along the central axis of the slot.

[0011] As a further optimized solution of the present utility model, the headstock is fixedly connected to the bed body. The tool rest is slidably connected to the top of the bed body. The tailstock is slidably connected to the top of the bed body. The tool rest is connected to the screw rod by threads. The tailstock is connected to the screw rod by threads. The tool rest is slidably connected to the slide rod. The tailstock is slidably connected to the slide rod. The input end of the screw rod is installed inside the headstock.

[0012] The beneficial effects of the present utility model are as follows: By the combined use of the rotating mechanism and the transmission mechanism, when it is necessary to rotate the turntable so that the drill bit can feed into the workpiece to drill the workpiece, the transmission mechanism is used to connect the rotating mechanism with the turntable, and then the rotating mechanism can be started to rotate the turntable, so that the drill bit automatically feeds into the workpiece. Compared with the traditional manual method, the burden on personnel is reduced, and the feed amount of the drill bit is continuous and stable, thereby improving the efficiency of drilling the workpiece. Description of the Drawings

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

[0014] Figure 2 is a schematic side sectional structure diagram of the utility model;

[0015] Figure 3 is the Figure 2 schematic enlarged structure diagram of part A in the utility model;

[0016] Figure 4 is a schematic three-dimensional structure diagram of the rotating mechanism of the utility model.

[0017] In the figure: 1, bed body; 2, headstock; 3, tool rest; 4, tailstock; 5, chuck; 6, mounting shaft; 7, drill bit; 8, fixture; 9, turntable; 10, screw; 11, slide bar; 12, motor; 13, rotating shaft; 14, first sprocket; 15, chain; 16, second sprocket; 17, rotating rod; 18, transmission gear; 19, rotating gear; 20, feed rod; 21, L-shaped groove; 22, insertion rod; 23, locking rod; 24, locking disc; 25, locking column; 26, insertion slot. Specific embodiments

[0018] The following further describes the present application in detail with reference to the accompanying drawings. It is necessary to point out here that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the protection scope of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application according to the above application content.

[0019] Embodiment

[0020] As Figure 1 , Figure 2 , Figure 3 and Figure 4 shown, an automatic drilling device for a numerically controlled lathe includes a bed body 1, a headstock 2, a tool rest 3, a tailstock 4, a screw 10 and a slide bar 11. The headstock 2 is fixedly connected to the bed body 1. The tool rest 3 is slidably connected to the top of the bed body 1. The tailstock 4 is slidably connected to the top of the bed body 1. The tool rest 3 is threadedly connected to the screw 10. The tailstock 4 is threadedly connected to the screw 10. The tool rest 3 is slidably connected to the slide bar 11. The tailstock 4 is slidably connected to the slide bar 11. The input end of the screw 10 is installed in the headstock 2. A chuck 5 is installed at the output end of the headstock 2. A fixture 8 is installed on the top of the tool rest 3. A mounting shaft 6 is installed in the tailstock 4. A drill bit 7 and a turntable 9 are respectively installed at both ends of the mounting shaft 6. A rotating mechanism is installed at one end of the bed body 1 away from the headstock 2. The output end of the rotating mechanism is inserted with a transmission mechanism, and the transmission mechanism is adapted to the turntable 9.

[0021] During use, fix the workpiece to be drilled on the chuck 5, and then the distance between the tailstock 4 and the workpiece can be adjusted until the drill bit 7 is in contact with the machining end of the workpiece. At this time, install the transmission mechanism on the turntable 9, and then start the headstock 2 to rotate the workpiece. Drill the workpiece through the drill bit 7. When starting the drilling process, start the rotating mechanism, and then drive the turntable 9 to rotate through the transmission mechanism, and then drive the mounting shaft 6 to move in the direction of the workpiece, realizing the automatic feeding of the drill bit 7. Compared with the traditional manual method, it reduces the burden on personnel, and the feeding amount of the drill bit 7 is continuous and stable, thus improving the efficiency of drilling the workpiece.

[0022] As Figure 1 , Figure 3 and Figure 4 shown, the rotating mechanism includes a motor 12 installed at one end of the bed 1 away from the headstock 2. The output end of the motor 12 is fixedly connected with a rotating shaft 13. The end of the rotating shaft 13 away from the motor 12 is fixedly connected with a first sprocket 14. A chain 15 is installed on the outer surface of the first sprocket 14. One end of the bed 1 away from the headstock 2 is rotatably connected with a rotating rod 17. A transmission gear 18 is fixedly connected to the outer surface of the rotating rod 17. The end of the rotating rod 17 is fixedly connected with a second sprocket 16. The second sprocket 16 is adapted to the chain 15. One end of the bed 1 away from the headstock 2 is rotatably connected with a rotating gear 19. A feed rod 20 is slidably connected inside the rotating gear 19. The rotating gear 19 meshes with the transmission gear 18. The feed rod 20 is set to be hexagonal prism-shaped. The part where the rotating gear 19 is slidably connected with the feed rod 20 is set to be hexagonal. The outer surface of the feed rod 20 is adapted to the inner surface of the rotating gear 19. The transmission mechanism includes a locking disk 24 attached to the side of the turntable 9 away from the mounting shaft 6. A locking column 25 is fixedly connected to the side of the locking disk 24 close to the turntable 9. The locking column 25 is adapted to the turntable 9. The shape of the turntable 9 is as Figure 4 shown. The locking columns 25 are set to be three, and are respectively abutted against the three support rods of the turntable 9. A plug rod 22 is fixedly connected to the side of the locking disk 24 away from the turntable 9. A locking rod 23 is fixedly connected to the end of the plug rod 22. A slot 26 is opened at one end of the feed rod 20 close to the locking disk 24. The slot 26 is adapted to the plug rod 22. An L-shaped groove 21 is opened on the inner wall of the slot 26. The L-shaped groove 21 is adapted to the locking rod 23. The locking rods 23 are set to be three and are arranged in an annular equidistant array along the central axis of the plug rod 22. The L-shaped grooves 21 are set to be three and are arranged in an annular equidistant array along the central axis of the slot 26.

[0023] During use, the workpiece is stably installed. After the drill bit 7 contacts the processing end of the workpiece, move the locking disc 24 to one side of the turntable 9 and make the locking column 25 press tightly against the support rod of the turntable 9, then drilling processing can be carried out on the workpiece. During the drilling process, start the motor 12 to make the rotating shaft 13 drive the first sprocket 14 to rotate, and then drive the rotating rod 17 to rotate through the chain 15 and the second sprocket 16, so that the transmission gear 18 drives the rotating gear 19 to rotate. At this time, since the inner wall of the rotating gear 19 and the outer surface of the feed rod 20 are both of a hexahedral shape, the rotation of the rotating gear 19 will drive the feed rod 20 to rotate, and then drive the locking disc 24 to rotate through the locking rod 23, the L-shaped groove 21 and the insertion rod 22. The rotation of the locking disc 24 will drive the rotation of the turntable 9 through the locking column 25 pressing tightly against the support rod of the turntable 9, realizing the automatic feeding of the drill bit 7;

[0024] When automatic feeding is not required, the feed rod 20 is bent and deformed, or the locking column 25 is broken and needs to be repaired, as Figure 3 shown, rotate the locking disc 24 clockwise so that the locking rod 23 moves to the straight-edge part of the L-shaped groove 21, then the connection between the locking disc 24 and the feed rod 20 can be released, and the feed rod 20 can be removed from the rotating gear 19. In addition, the bent feed rod 20 can be repaired or replaced, and the broken locking column 25 that needs to be repaired can also be repaired. When reinstalling, just align the locking rod 23 with the straight-edge part of the L-shaped groove 21, then insert the insertion rod 22 into the inside of the insertion slot 26 until the locking disc 24 fits with the feed rod 20, and then rotate the locking disc 24 counterclockwise so that the locking rod 23 reaches the outermost end of the arc-edge part of the L-shaped groove 21, and the connection between the locking disc 24 and the feed rod 20 is completed. The operation is simple and fast, which is convenient for repairing and replacing the structure when the structure is damaged and convenient for personnel to use.

[0025] The above embodiments only represent several implementation manners of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. An automatic drilling device for a numerically controlled lathe, comprising a bed (1), a headstock (2), a tool rest (3), a tailstock (4), a screw rod (10) and a slide bar (11), characterized in that: A chuck (5) is installed at the output end of the main spindle box (2), a fixture (8) is installed at the top of the tool rest (3), a mounting shaft (6) is installed in the tailstock (4), drills (7) and a turntable (9) are respectively installed at both ends of the mounting shaft (6), a rotating mechanism is installed at one end of the bed body (1) far away from the main spindle box (2), a transmission mechanism is inserted at the output end of the rotating mechanism, and the transmission mechanism is adapted to the turntable (9).

2. The automatic drilling device of a numerically controlled lathe according to claim 1, wherein: The rotating mechanism includes a motor (12) installed at one end of the bed body (1) far away from the main spindle box (2), the output end of the motor (12) is fixedly connected with a rotating shaft (13), a first sprocket (14) is fixedly connected to the end of the rotating shaft (13) far away from the motor (12), a chain (15) is installed on the outer surface of the first sprocket (14), a rotating rod (17) is rotatably connected to one end of the bed body (1) far away from the main spindle box (2), a transmission gear (18) is fixedly connected to the outer surface of the rotating rod (17), a second sprocket (16) is fixedly connected to the end of the rotating rod (17), the second sprocket (16) is adapted to the chain (15), a rotating gear (19) is rotatably connected to one end of the bed body (1) far away from the main spindle box (2), a feed rod (20) is slidably connected in the rotating gear (19), and the rotating gear (19) is meshed with the transmission gear (18).

3. The automatic drilling device of a numerically controlled lathe according to claim 2, characterized in that: The feed rod (20) is arranged in a hexagonal prism shape, the part of the rotating gear (19) slidably connected with the feed rod (20) is arranged in a hexagonal shape, and the outer surface of the feed rod (20) is adapted to the inner surface of the rotating gear (19).

4. The automatic drilling device of a numerically controlled lathe according to claim 2, characterized in that: The transmission mechanism includes a locking disc (24) attached to the side of the turntable (9) far away from the mounting shaft (6), a locking column (25) is fixedly connected to the side of the locking disc (24) close to the turntable (9), the locking column (25) is adapted to the turntable (9), a plug rod (22) is fixedly connected to the side of the locking disc (24) far away from the turntable (9), a locking rod (23) is fixedly connected to the end of the plug rod (22), a slot (26) is opened at one end of the feed rod (20) close to the locking disc (24), the slot (26) is adapted to the plug rod (22), an L-shaped groove (21) is opened on the inner wall of the slot (26), and the L-shaped groove (21) is adapted to the locking rod (23).

5. The automatic drilling device of a numerically controlled lathe according to claim 4, characterized in that: Three locking rods (23) are arranged in an annular equidistant array along the central axis of the plug rod (22), and three L-shaped grooves (21) are arranged in an annular equidistant array along the central axis of the slot (26).

6. The automatic drilling device of a numerically controlled lathe according to claim 1, characterized in that: The main spindle box (2) is fixedly connected with the bed body (1), the tool rest (3) is slidably connected to the top of the bed body (1), the tailstock (4) is slidably connected to the top of the bed body (1), the tool rest (3) is connected with a screw rod (10) through a thread, the tailstock (4) is connected with the screw rod (10) through a thread, the tool rest (3) is slidably connected with a slide rod (11), the tailstock (4) is slidably connected with the slide rod (11), and the input end of the screw rod (10) is installed in the main spindle box (2).

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