Nut inner hole thread machining device

Abstract

The utility model relates to the technical field of nut machining, in particular to a nut inner hole thread machining device which comprises an operation table, a fixed seat, a die holder, a driving assembly A, a movable plate, a driving assembly C and a spraying assembly. A through hole A is formed in the operation table, and the bottom of the operation table is sleeved with a separation assembly outside the through hole A; the fixed seat is connected with the operation table and rotationally connected with the disc, and a plurality of mounting grooves are formed in the disc; the die holders are respectively positioned in the mounting grooves in the corresponding sides; the driving assembly A is connected with the fixed seat and drives the disc to rotate; the movable plate is slidably connected with the operation table, and a driving assembly B is arranged on the movable plate and is in driving connection with the screw tap; the driving assembly C is connected with the operation table and drives the screw tap to be away from or close to the die holder. The spraying assembly is connected with the operation table, and the input end of the spraying assembly communicates with the liquid outlet end of the separation assembly. Automatic feeding and discharging can be rapidly achieved, the machining efficiency is improved, and the safety coefficient is high.

Description

Technical Field

[0001] This utility model relates to the field of nut processing technology, and in particular to a device for processing the internal thread of a nut. Background Technology

[0002] The internal thread of a nut is usually tapped during machining. When machining the thread in the inner hole of a nut, the nut must first be fixed. Then, the tapping drill bit is rotated by a motor, and at the same time, the tapping drill bit is moved vertically by a lifting mechanism to machine the thread in the inner hole of the nut.

[0003] The technical solution disclosed in Chinese Patent No. CN221676023U consists of a lifting mechanism comprising a first motor, a screw, a bearing, and a lifting plate. Two pairs of fixed rods are fixedly connected to the surface of the lifting plate. Through the cooperation of the slider and the guide rod, the lifting plate can remain stable during the lifting process, thereby preventing the position of the tapping drill bit from deviating and ensuring the processing quality.

[0004] However, the device still has shortcomings: it requires loading and unloading materials one by one, which results in a long waiting time, and the straight-up and down loading and unloading method is quite dangerous. Utility Model Content

[0005] The purpose of this invention is to address the problems existing in the background technology by proposing a device for machining the inner thread of a nut.

[0006] The technical solution of this utility model is: a nut internal hole thread processing device, including an operating table, a through hole A provided on the operating table, and a separation component sleeved on the bottom of the operating table outside the through hole A;

[0007] The fixed base is connected to the operating table. The fixed base is rotatably connected to the disc. The disc is located above the through hole A. Several mounting slots are arranged in a ring array around its axis on the arc surface of the disc. The fixed base is also provided with a feeding hole.

[0008] Mold bases, each mold base is located in the mounting groove on the corresponding side;

[0009] Drive component A is connected to the fixed base. Drive component A drives the disc to rotate. While the disc is rotating, each mold base passes through the bottom of the feeding hole in sequence.

[0010] A movable plate is slidably connected to the operating table. A drive component B is installed on the movable plate, and the drive component B drives the connected tap.

[0011] Drive component C is connected to the operating table and drives the tap away from or towards the die base;

[0012] And a spraying assembly, which is connected to the operating table. The input end of the spraying assembly is connected to the liquid outlet end of the separation assembly. When the spraying assembly is in operation, it sprays cutting fluid onto the tap.

[0013] Preferably, the separation component includes a receiving box; the opening of the receiving box covers the outside of the through hole A, a discharge hole is provided on the side of the receiving box, and a filter screen inclined towards the discharge hole is provided inside the receiving box, with the filter screen located above the liquid surface.

[0014] Preferably, the spray assembly includes a spray head and a water pump; a protective cover is provided on the operating platform, a movable plate is located inside the protective cover and slidably connected to its inner wall, the spray head is connected to the inner wall of the protective cover, the body of the water pump is connected to the protective cover, the output end of the water pump is connected to the spray head, a water pumping pipe is provided at the input end of the water pump, and the other end of the water pumping pipe is connected to the inner wall of the receiving box and located below the liquid surface.

[0015] Preferably, the fixed base is provided with a guide groove that communicates with the feeding hole.

[0016] Preferably, a circular groove coaxial with the disk is provided on the disk, and a plurality of through holes B communicating with the circular groove are arranged in a ring array on the disk, and each through hole B is connected to the mounting groove on the corresponding side.

[0017] Preferably, the mold base is provided with a mold cavity and a through hole C communicating with the mold cavity, and each through hole C is connected to the through hole B on the corresponding side.

[0018] Preferably, a cylindrical cavity is provided inside the circular groove and rotatably connected to its inner wall. The cylindrical cavity is coaxially provided with a tapered groove. A through hole D is provided on the cylindrical cavity, and the through hole D is connected to a through hole B located at the machining station.

[0019] Compared with the prior art, the present invention has the following beneficial technical effects:

[0020] By setting a fixed base and a disc, multiple mold bases are arranged in a circular array on the arc surface of the disc. By driving the disc to rotate, each mold base is automatically loaded with material through the unloading hole on the fixed base. After the nut is processed, it will automatically demold due to its own gravity as the disc rotates, realizing fast and automatic loading and unloading. In addition, the loading port and processing port of this utility model are no longer on the same straight line, which improves the safety of equipment operation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;

[0022] Figure 2 This is a schematic diagram of the connection structure of the components on the mounting base;

[0023] Figure 3 This is a schematic diagram of the connection structure of the various components on the disk.

[0024] Reference numerals in the attached drawings: 1. Operating platform; 101. Through hole A; 2. Fixed base; 201. Guide groove; 202. Discharge hole; 3. Disc; 31. Circular groove; 32. Mounting groove; 33. Through hole B; 4. Mold base; 41. Through hole C; 5. Motor A; 6. Cylinder; 61. Conical groove; 62. Through hole D; 7. Fixed shaft; 8. Receiving box; 81. Discharge hole; 9. Filter screen; 10. Protective cover; 11. Movable plate; 12. Linear module; 13. Motor B; 14. Tap; 15. Spray head; 16. Water pump. Detailed Implementation

[0025] Example 1

[0026] like Figures 1-3 As shown, this utility model proposes a nut internal thread processing device, including an operating table 1, a fixed base 2, a mold base 4, a drive assembly A, a movable plate 11, a drive assembly C, and a spray assembly. The operating table 1 has a through hole A101, and a separation assembly is fitted around the bottom of the operating table 1 outside the through hole A101. The separation assembly includes a receiving box 8. The opening of the receiving box 8 covers the outside of the through hole A101, and a discharge hole 81 is provided on the side of the receiving box 8. A filter screen 9, inclined towards the discharge hole 81, is provided inside the receiving box 8 and is located above the liquid surface. A protective cover 10 is provided on the operating table 1. The fixed base 2 is connected to the operating table 1, and a disc 3 is rotatably connected to the fixed base 2. The disc 3 is located above the through hole A101. Several mounting grooves 32 are arranged in a circular array around the axis on the arc surface of the disc 3, and a discharge hole 202 is provided on the fixed base 2. A guide groove 201 communicating with the discharge hole 202 is provided on the fixed base 2. Each mold base 4 is located in the mounting groove 32 on its corresponding side. The drive assembly A includes, but is not limited to, a motor A5. The body of motor A5 is connected to the fixed base 2, and the output end of motor A5 is connected to the disc 3. Motor A5 drives the disc 3 to rotate, and while the disc 3 is rotating, each mold base 4 passes sequentially below the discharge hole 202. A movable plate 11 is slidably connected to the operating table 1. A drive assembly B is mounted on the movable plate 11. Drive assembly B includes, but is not limited to, a motor B13. The output end of motor B13 is connected to a collet, and the collet is connected to a tap 14. Drive assembly C includes, but is not limited to, a linear module 12. The body of linear module 12 is connected to the inner wall of the protective cover 10, and the output end of linear module 12 is connected to the movable plate 10. In operation, linear module 12 drives the tap 14 away from or towards the mold base 4. The spray assembly includes a spray head 15 and a water pump 16. The movable plate 11 is located inside the protective cover 10 and is slidably connected to its inner wall. The spray head 15 is connected to the inner wall of the protective cover 10. The body of the water pump 16 is connected to the protective cover 10. The output end of the water pump 16 is connected to the spray head 15. The input end of the water pump 16 is provided with a water suction pipe. The other end of the water suction pipe is connected to the inner wall of the receiving box 8 and is located below the liquid surface. When the spray assembly is in operation, it sprays cutting fluid onto the tap 14.

[0027] In this embodiment, the cost reduction device is connected to a vibrating screen, so that the output end of the vibrating screen is connected to the guide groove 201. The vibrating screen continuously feeds neatly arranged nuts into the guide groove 201. The nut at the bottom of the guide groove 201 automatically enters the discharge hole 202 as a backup. The motor A5 is started, and the motor A5 drives the disc 3 to rotate, so that the empty mold base 4 is aligned with the discharge hole 202. The nut in the backup position is automatically inserted into the mold base 4. Then, the motor A5 drives the disc 3 to rotate so that the nut is facing the tap 14. The motor B13 drives the tap 14 to rotate, and the linear module 12 drives the tap. 14 moves toward the nut. Tap 14 rotates forward and backward according to the set program and moves back and forth in conjunction with the linear module 12 to effectively tap the nut. During the tapping process, water pump 16 draws cutting fluid from the receiving box 8 and sprays it onto tap 14 through spray head 15 to cool tap 14. The tapped nut continues to rotate under the drive of motor A5. At this time, since the opening of the mold base 4 is facing downward, the nut automatically falls into the through hole A101 under its own gravity. The debris falls with the nut. The debris and nut are discharged under the guidance of filter screen 9, while the cutting fluid is automatically stored in the receiving box 8 for backup.

[0028] Example 2

[0029] like Figure 3 As shown, the nut internal thread processing device proposed in this utility model, compared with Embodiment 1, has a circular groove 31 coaxial with the disc 3, and several through holes B33 connected to the circular groove 31 are arranged in a ring array on the disc 3. Each through hole B33 is connected to the mounting groove 32 on the corresponding side. The mold base 4 has a mold cavity and a through hole C41 connected to the mold cavity. Each through hole C41 is connected to the through hole B33 on the corresponding side. A cylinder 6 is rotatably connected to the inner wall of the circular groove 31. A tapered groove 61 is coaxially provided on the cylinder 6. A through hole D62 is provided on the cylinder 6, and the through hole D62 is connected to the through hole B at the processing position.

[0030] In this embodiment, during the tapping process, the tap 14 passes through the through hole C41, through hole B33 and through hole D62 in sequence, which can promptly guide the debris generated during the tapping process into the tapered groove 61. The slope of the inner cavity of the tapered groove 61 directly and smoothly guides the mixture of debris and cutting fluid into the through hole A101. This structure effectively avoids the situation where some debris is stored in the disk 3 when changing different mold bases 4 because the diameter of the through hole C41 is smaller than the diameter of the through hole B33.

[0031] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A device for machining the internal thread of a nut, characterized in that, include Operating table (1), with a through hole A (101) provided on the operating table (1), and a separation component sleeved on the bottom of the operating table (1) outside the through hole A (101); Fixed seat (2), fixed seat (2) is connected to operating table (1), fixed seat (2) is rotatably connected to disc (3), disc (3) is located above through hole A (101), and several mounting slots (32) are arranged in a ring array around its axis on the arc surface of disc (3), and a feeding hole (202) is provided on fixed seat (2); Mold base (4), each mold base (4) is located in the mounting groove (32) on the corresponding side; Drive component A is connected to the fixed base (2). Drive component A drives the disc (3) to rotate. When the disc (3) is rotating, each mold base (4) passes through the bottom of the feeding hole (202) in sequence. Movable plate (11) is slidably connected to the operating table (1). A drive component B is provided on the movable plate (11), and the drive component B drives the connecting tap (14). Drive component C is connected to the operating table (1) and drives the tap (14) away from or near the mold base (4); And a spraying assembly, which is connected to the operating table (1). The input end of the spraying assembly is connected to the liquid outlet end of the separation assembly. The spraying assembly sprays cutting fluid onto the tap (14) in the working state.

2. The nut internal thread machining device according to claim 1, characterized in that, The separation assembly includes a receiving box (8); the opening of the receiving box (8) covers the outside of the through hole A (101), the side of the receiving box (8) is provided with a discharge hole (81), and a filter screen (9) inclined towards the discharge hole (81) is provided inside the receiving box (8), the filter screen (9) is located above the liquid surface.

3. The nut internal thread machining device according to claim 1, characterized in that, The spray assembly includes a spray head (15) and a water pump (16); a protective cover (10) is provided on the operating table (1), a movable plate (11) is located inside the protective cover (10) and is slidably connected to its inner wall, the spray head (15) is connected to the inner wall of the protective cover (10), the body of the water pump (16) is connected to the protective cover (10), the output end of the water pump (16) is connected to the spray head (15), the input end of the water pump (16) is provided with a water pumping pipe, and the other end of the water pumping pipe is connected to the inner wall of the receiving box (8) and located below the liquid surface.

4. The nut internal thread machining device according to claim 1, characterized in that, A guide groove (201) communicating with the feed hole (202) is provided on the fixed base (2).

5. The nut internal thread machining device according to claim 1, characterized in that, A circular groove (31) is provided on the disk (3) and a number of through holes B (33) connected to the circular groove (31) are arranged in a ring array on the disk (3). Each through hole B (33) is connected to the mounting groove (32) on the corresponding side.

6. The nut internal thread machining device according to claim 5, characterized in that, The mold base (4) is provided with a mold cavity and a through hole C (41) communicating with the mold cavity. Each through hole C (41) is connected to the through hole B (33) on the corresponding side.

7. The nut internal thread machining device according to claim 6, characterized in that, A cylindrical tube (6) is rotatably connected to the inner wall of the circular groove (31). The cylindrical tube (6) is coaxially provided with a tapered groove (61). A through hole D (62) is provided on the cylindrical tube (6). The through hole D (62) is connected to the through hole B located at the processing station.

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