Numerical control radial drill with rotating shaft

Abstract

The invention belongs to the technical field of numerical control machine tools, and particularly relates to a numerical control radial drill with a rotating shaft, which comprises a base, a stand column, a rocker arm and a spindle box, the rocker arm is rotatably arranged on the base through the stand column, the spindle box slides on the rocker arm in a reciprocating manner, and the rocker arm is connected with the spindle box through a reciprocating driving mechanism. The reciprocating driving mechanism can push the spindle box to move back and forth on the rocker arm, a driving motor is arranged on the stand column, a lead screw is arranged at the lower end of the driving motor, the lead screw is connected with the rocker arm, the rocker arm can be driven to move up and down through the driving motor, and a rotating shaft used for being connected with a drill bit is arranged at the lower end of the spindle box. According to the numerical control radial drill with the rotating shaft, the structure is simple and reasonable, the machining precision is ensured through the rotating shaft, and the service life of the protective cover is long.

Description

Technical Field

[0001] The invention belongs to the technical field of numerical control machine tools, in particular to a numerical control radial drill with a rotary shaft. Background Art

[0002] A drilling machine is a hole processing equipment, which can be divided into vertical drilling machines, bench drilling machines, multi-hole drilling machines, radial drilling machines and other special drilling machines. Among all types of drilling machines, radial drilling machines are easy to operate, flexible, applicable to a wide range of typical applications, and are particularly suitable for hole processing of single or batch production of large parts with multiple holes. They are common machine tools in general machining workshops.

[0003] The radial drilling machine is mainly composed of a base, an inner column, an outer column, a radial arm, a spindle box and a workbench. Existing radial drilling machines generally use manual drilling. In order to facilitate manual operation, protective plates are basically not installed on the base. For the safety of personnel, some factories upgrade the radial drilling machines to CNC radial drilling machines, which do not require manual operation and can also install protective covers around the base. However, after long-term use, the existing protective covers are prone to corrosion and rust at the connection between the protective cover and the base and the location where waste chips are scratched, which affects the service life. Summary of the Invention

[0004] The purpose of the present invention is to provide a CNC radial drill with a rotary shaft, which has a simple and reasonable structure, ensures processing accuracy through the rotary shaft, and has a long service life of the protective cover.

[0005] The object of the present invention is achieved like this:

[0006] A CNC rocker drill with a rotating shaft comprises a base, a column, a rocker arm and a spindle box. The rocker arm is rotatably arranged on the base through the column. The spindle box slides back and forth on the rocker arm, and the rocker arm and the spindle box are connected by a reciprocating drive mechanism. The reciprocating drive mechanism can push the spindle box to move back and forth on the rocker arm. A drive motor is provided on the column, and a screw is provided at the lower end of the drive motor. The screw is connected to the rocker arm and can drive the rocker arm to move up and down through the drive motor. A rotating shaft for connecting a drill bit is provided at the lower end of the spindle box, and a protective cover is detachably provided on the periphery of the base.

[0007] In the above-mentioned CNC radial drill with a rotating shaft, the reciprocating drive mechanism includes a servo motor and a ball screw assembly. The servo motor is fixed at one end of the rocker arm and is arranged away from the column. The ball screw assembly is arranged between the spindle box and the rocker arm, and the motor shaft of the servo motor is connected to the ball screw assembly.

[0008] In the above-mentioned CNC radial drill with a rotary shaft, a turntable is detachably provided on the base, and the turntable includes a fixed base and a disc-shaped table, and the disc-shaped table is evenly distributed with a plurality of T-shaped slots.

[0009] In the above-mentioned CNC radial drill with a rotary shaft, the protective cover includes a left cover, a right cover and a rear cover, and the left cover, the right cover and the rear cover are connected to each other and are all detachably connected to the base.

[0010] In the above-mentioned CNC radial drill with a rotary shaft, the left cover and the right cover each include a cover body and a protective door. A notch is provided on the cover body, and the protective door is slidably arranged on one side of the cover body and closes or opens the notch.

[0011] In the above-mentioned CNC radial drill with a rotating shaft, a guide seat 1 is provided at the upper end of the cover body, and a guide rod 1 is provided at the lower end thereof. The upper and lower ends of the protective door are respectively provided with a guide rod 2 and a guide seat 2 for use with the guide seat 1 and the guide rod 1.

[0012] In the above-mentioned CNC radial drill with a rotary shaft, a travel switch used in conjunction with the second guide seat is provided in the base, and the travel switch is connected to the spindle box and the electric control system.

[0013] In the above-mentioned CNC radial drill with a rotary shaft, the notches of the left cover and the right cover are arranged close to each other.

[0014] In the above-mentioned CNC radial drill with a rotating shaft, the lower ends of the left cover, the right cover and the rear cover are all extended inward to form a shielding plate, a connecting support plate is provided below the shielding plate, and a slot is provided on the circumferential side of the upper end surface of the base to facilitate the insertion of the connecting support plate, and a locking hole is provided on the outer side of the base, which passes through the base and is connected to the slot.

[0015] In the above-mentioned CNC radial drill with a rotary shaft, the outer side surfaces of the left cover, the right cover and the rear cover are provided with a PTFE material coating.

[0016] Compared with the prior art, the present invention has the following outstanding and beneficial technical effects:

[0017] The present invention improves the drilling accuracy through the rotating shaft. The spindle box can directly reach the set position to process the workpiece to be processed through the reciprocating drive mechanism, and a protective cover is provided on the side of the base to ensure that waste chips will not splash out during processing to avoid hurting others. At the same time, the protective cover is coated with PTFE material to improve the strength, toughness and wear resistance of the protective cover. It is worth mentioning that the impact resistance of the protective cover can be greatly improved, and the service life of the protective cover can be extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of the present invention.

[0019] Figure 2It is a partial exploded view of the present invention.

[0020] Figure 3 It is a structural schematic diagram of the protective door of the present invention.

[0021] Figure 4 It is a partial cross-sectional diagram of the protective cover and the base of the present invention.

[0022] Figure 5 It is a partial cross-sectional schematic diagram of the base of the present invention.

[0023] 1-base; 2-column; 3-rocker arm; 4-spindle box; 5-rotating axis; 6-protective cover; 11-turntable; 21-drive motor; 22-screw; 31-reciprocating drive mechanism; 61-left cover; 62-right cover; 63-rear cover; 64-shielding plate; 65-connecting support plate; 66-slot; 67-locking hole; 111-fixed base;

[0024] 112-disc-shaped table; 113-T-slot; 311-servo motor; 312-ball screw assembly; 601-cover; 602-protective door; 603-notch; 604-guide seat 1; 605-guide rod 1; 606-guide rod 2; 607-guide seat 2; 608-travel switch. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to specific embodiments in conjunction with the accompanying drawings:

[0026] like Figure 1-Figure 5 As shown: A CNC rocker drill with a rotating shaft, comprising a base 1, a column 2, a rocker arm 3 and a spindle box 4. The rocker arm 3 is rotatably arranged on the base 1 through the column 2, and the spindle box 4 reciprocates on the rocker arm 3. The rocker arm 3 and the spindle box 4 are connected by a reciprocating drive mechanism 31. The reciprocating drive mechanism 31 can push the spindle box 4 to move back and forth on the rocker arm 3. A drive motor 21 is provided on the column 2, and a screw rod 22 is provided at the lower end of the drive motor 21. The screw rod 22 It is connected to the rocker arm 3, and the rocker arm 3 can be driven up and down by the driving motor 21. The lower end of the spindle box 4 is provided with a rotary shaft 5 for connecting the drill bit, and the protective cover 6 is detachably provided on the side of the base 1. Specifically, the present invention improves the processing accuracy of drilling through the rotary shaft. The spindle box can directly reach the set position to process the workpiece to be processed through the reciprocating drive mechanism, and a protective cover is provided on the side of the base to ensure that waste chips will not splash out during processing to avoid hurting others.

[0027] In the above-mentioned CNC radial drill with a rotating shaft, the reciprocating drive mechanism 31 includes a servo motor 311 and a ball screw assembly 312. The servo motor 311 is fixed to one end of the rocker arm 3 and is arranged away from the column 2. The ball screw assembly 312 is arranged between the spindle box 4 and the rocker arm 3, and the motor shaft of the servo motor 311 is connected to the ball screw assembly 312. Specifically, the spindle box is controlled to move on the rocker arm by the servo motor, which can ensure movement accuracy and processing stability.

[0028] In the above-mentioned CNC radial drill with a rotating shaft, a turntable 11 is detachably provided on the base 1, and the turntable 11 includes a fixed base 111 and a disc-shaped table 112, and the disc-shaped table 112 is evenly distributed with a plurality of T-slots 113. Specifically, the fixed base and the disc-shaped table can be an integrally formed structure, and the plurality of T-slots are designed to facilitate the fixing of the workpiece, and the plurality of T-slots are arranged around the disc-shaped table.

[0029] In the above-mentioned CNC radial drill with a rotary axis, the protective cover 6 includes a left cover 61, a right cover 62 and a rear cover 63. The left cover 61, the right cover 62 and the rear cover 63 are connected to each other and can be detachably connected to the base 1. The left cover 61 and the right cover 62 each include a cover body 601 and a protective door 602. A notch 603 is provided on the cover body 601. The protective door 602 is slidably arranged on one side of the cover body 601 and closes or opens the notch 603. The upper end of the cover body 601 is provided with a guide seat 604, and the lower end thereof is provided with a guide seat. Guide rod 1 605, the upper and lower ends of the protective door 602 are respectively provided with guide rod 2 606 and guide seat 2 607 used in conjunction with guide seat 1 604 and guide rod 1 605, and a travel switch 608 used in conjunction with guide seat 2 607 is provided in the base 1. The travel switch 608 is connected to the spindle box 4 and the electronic control system. The gaps 603 of the left cover 61 and the right cover 62 are set close to each other. Specifically, this can expand the gap, making it easier for the operator to fix and remove the workpiece. The travel switch is designed to detect whether the protective door is closed in place.

[0030] In the above-mentioned CNC radial drill with a rotating shaft, the lower ends of the left cover 61, the right cover 62 and the rear cover 63 are all extended inward to form a baffle plate 64, and a connecting support plate 65 is provided below the baffle plate 64. The upper end surface of the base 1 is provided with a slot 66 for facilitating the insertion of the connecting support plate 65, and a locking hole 67 is provided on the outer side of the base 1. The locking hole 67 passes through the base 1 and is connected with the slot 66. Specifically, a bolt is provided in the locking hole, and the bolt rests on the connecting support plate after passing through the locking hole to play a fixing role. The designed baffle is inclined toward the base, which can allow waste chips or coolant to flow to the base, thereby preventing the above-mentioned impurities from staying for a long time.

[0031] In the above-mentioned CNC radial drill with a rotating shaft, the outer sides of the left cover 61, the right cover 62 and the rear cover 63 are provided with a PTFE material coating. At the same time, by providing the PTFE material coating on the protective cover, the strength, toughness and wear resistance of the protective cover can be improved. It is worth mentioning that the impact resistance of the protective cover can be greatly improved and the service life of the protective cover can be extended.

[0032] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A CNC rocker drill with a rotary axis, comprising a base (1), a column (2), a rocker arm (3) and a spindle box (4), characterized in that: The rocker arm (3) is rotatably arranged on the base (1) through the column (2); the spindle box (4) reciprocates and slides on the rocker arm (3); and the rocker arm (3) and the spindle box (4) are connected through a reciprocating drive mechanism (31); the reciprocating drive mechanism (31) can push the spindle box (4) to move back and forth on the rocker arm (3); a driving motor (21) is arranged on the column (2); a screw rod (22) is arranged at the lower end of the driving motor (21); the screw rod (22) is connected to the rocker arm (3) and can drive the rocker arm (3) to move up and down through the driving motor (21); a rotary shaft (5) for connecting a drill bit is arranged at the lower end of the spindle box (4); and a protective cover (6) is detachably arranged on the peripheral side of the base (1).

2. The CNC radial drill with a rotary axis according to claim 1, characterized in that: The reciprocating drive mechanism (31) comprises a servo motor (311) and a ball screw assembly (312); the servo motor (311) is fixed to one end of the rocker arm (3) and is arranged away from the column (2); the ball screw assembly (312) is arranged between the spindle box (4) and the rocker arm (3); and the motor shaft of the servo motor (311) is connected to the ball screw assembly (312).

3. The CNC radial drill with a rotary axis according to claim 1 or 2, characterized in that: A turntable (11) is detachably provided on the base (1), and the turntable (11) comprises a fixed base (111) and a disc-shaped table (112), and a plurality of T-shaped slots (113) are evenly distributed on the disc-shaped table (112).

4. The CNC radial drill with a rotary axis according to claim 3, characterized in that: The protective cover (6) comprises a left cover (61), a right cover (62) and a rear cover (63); the left cover (61), the right cover (62) and the rear cover (63) are connected to each other and can be detachably connected to the base (1).

5. The CNC radial drill with a rotary axis according to claim 4, characterized in that: The left cover (61) and the right cover (62) both comprise a cover body (601) and a protective door (602). A notch (603) is provided on the cover body (601). The protective door (602) is slidably arranged on one side of the cover body (601) and closes or opens the notch (603).

6. The CNC radial drill with a rotary axis according to claim 5, characterized in that: The upper end of the cover body (601) is provided with a guide seat 1 (604), and the lower end thereof is provided with a guide rod 1 (605). The upper and lower ends of the protective door (602) are respectively provided with a guide rod 2 (606) and a guide seat 2 (607) for use with the guide seat 1 (604) and the guide rod 1 (605).

7. The CNC radial drill with a rotary axis according to claim 6, characterized in that: A travel switch (608) used in conjunction with the second guide seat (607) is provided in the base (1), and the travel switch (608) is connected to the spindle box (4) and the electric control system.

8. The CNC radial drill with a rotary axis according to claim 5, characterized in that: The notches (603) of the left cover (61) and the right cover (62) are arranged close to each other.

9. The CNC radial drill with a rotary axis according to claim 4, 5, 6, 7 or 8, characterized in that: The lower ends of the left side cover (61), the right side cover (62) and the rear side cover (63) are all extended inward to form a shielding plate (64), and a connecting support plate (65) is provided below the shielding plate (64). A slot (66) is provided on the circumferential side of the upper end surface of the base (1) for facilitating the insertion of the connecting support plate (65), and a locking hole (67) is provided on the outer side of the base (1), and the locking hole (67) passes through the base (1) and is connected to the slot (66).

10. The CNC radial drill with a rotary axis according to claim 9, characterized in that: The outer sides of the left side cover (61), the right side cover (62) and the rear side cover (63) are provided with a PTFE material coating.

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