CN220278279U

CN220278279U - Drilling machine

Info

Publication number: CN220278279U
Application number: CN202322053622.8U
Authority: CN
Inventors: 王鹏飞; 张宇林; 帅晨曦
Original assignee: Panzhihua University
Current assignee: Panzhihua University
Priority date: 2023-08-01
Filing date: 2023-08-01
Publication date: 2024-01-02
Anticipated expiration: 2033-08-01

Abstract

The utility model discloses a drilling machine, belongs to the technical field of drilling processing, and is mainly used for drilling processing. The utility model aims to solve the technical problem of providing a drilling machine, which comprises a base, a stand column, a first fixed plate, a second fixed plate, a first motor, a vertical driving mechanism and a spindle box, wherein the spindle box comprises a transmission shaft and an axle box, the first fixed plate, the second fixed plate and the base are sequentially arranged on the stand column, the first motor is arranged above the first fixed plate and is rotationally connected with the transmission shaft through a spline to drive a driving gear arranged in the axle box to rotate so as to drive a drill bit clamp and a drill bit to rotate, and the vertical driving mechanism is arranged on the second fixed plate and drives the transmission shaft to slide up and down so as to drive the axle box to slide up and down. Adopt the drilling machine of this application to carry out drilling processing, but the up-and-down feed motion of control drill bit's rotational speed and headstock respectively, vibrations when first motor and vertical actuating mechanism function can not influence the headstock simultaneously to improve the stability and the drilling precision of drill bit.

Description

Drilling machine

Technical Field

The utility model relates to the technical field of drilling processing, in particular to a drilling machine.

Background

The drilling machine is mainly used for processing drilling holes on a workpiece, and takes the rotation of the drill bit as main movement and the axial movement of the drill bit as feed movement, so that the drill bit can process specified drilling holes for installation at corresponding positions of the workpiece when moving towards the workpiece to be processed; the existing vertical drilling machine is usually driven by a main shaft to drive a main shaft box and a motor to perform up-down feeding motion, but the motor vibrates greatly, the main shaft box carrying the motor is heavy in weight and high in control difficulty, and the stability and the precision of a drill bit can be influenced in the use process.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a drilling machine which is mainly used for drilling so as to provide stable feeding movement and improve the stability and the precision of a drill bit.

The utility model discloses a drilling machine, which comprises a base, upright posts, a first fixing plate, a first motor and a main shaft box, wherein an operation table is arranged on the base, fixing clamps are arranged on the operation table, four upright posts are vertically arranged on the base around the operation table, and the first fixing plate is arranged at the top end of each upright post; the first motor is arranged in the middle of the upper portion of the first fixed plate, the output end of the first motor passes through the first fixed plate, the spindle box comprises a transmission shaft and an axle box, the transmission shaft comprises an external spline shaft, an internal spline shaft sleeve and a shaft sleeve, the external spline shaft is rotationally connected with the output end of the first motor through a shaft coupling, the internal spline shaft sleeve is sleeved outside the external spline shaft and rotationally connected with the external spline shaft, the shaft sleeve is sleeved outside the internal spline shaft sleeve, a bearing is arranged at the top end of the shaft sleeve and is connected with the internal spline shaft sleeve, the shaft sleeve is externally connected with a vertical driving mechanism, four second fixed plates positioned between the first fixed plate and a base are further arranged on the upright post, a through hole is formed in the center of the second fixed plate, the shaft sleeve passes through the through hole and is connected with the axle box, a gear rotationally connected with the internal spline shaft sleeve is arranged in the shaft box, and a drill bit clamp is connected with the gear.

Preferably, the vertical driving mechanism is a rocker, the output end of the rocker is connected with a gear, and a vertical sawtooth part matched with the gear is arranged outside the shaft sleeve.

Preferably, the vertical driving mechanism is a second motor, the output end of the second motor is connected with a gear, and a vertical sawtooth part matched with the gear is arranged outside the shaft sleeve.

Preferably, the axle box comprises a cover body and a box body, wherein the box body is arranged below the cover body, the top surface of the cover body is connected with the axle sleeve, and the cover body is in sliding connection with the upright post.

As an implementation mode, four upright posts are also sleeved with springs, one ends of the springs are connected with the base, and the other ends of the springs are connected with the bottom surface of the cover body.

As one embodiment, the cover is detachably connected to the case.

Preferably, at least two driven gears are connected in a circumferential direction in a rotating manner, and each driven gear is connected with a drill bit clamp.

The beneficial effects of the utility model are as follows: through the mechanism that will drive the headstock motion, namely first motor and vertical actuating mechanism and headstock separately set up for when the headstock moved, first motor, vertical actuating mechanism can not follow the headstock and move together, and then reduce the weight of headstock, install the drill bit in headstock below simultaneously and can not receive the influence that vibrations brought when first motor and vertical actuating mechanism function, improved the stability of drill bit, set up vertical actuating mechanism and first motor separately simultaneously, can the upper and lower feed motion of independent control headstock and the rotation of drill bit, realize the better control to the drill bit, improve the stability and the drilling precision of drill bit.

Drawings

Fig. 1: the utility model provides a structural schematic diagram of a drilling machine;

fig. 2: another structural schematic diagram of the drilling machine provided by the utility model;

fig. 3: a structural schematic diagram at A;

fig. 4: a structural schematic diagram at the position B;

fig. 5: the arrangement structure of the driving gear and the driven gear is schematically shown.

Reference numerals: 1-a base; 2-an operation table; 21-a fixed clamp; 3-stand columns; 31-linear bearings; 32-a spring; 4-a first fixing plate; 5-a second fixing plate; 6-a first motor, 62-a coupling; 7-headstock, 71-transmission shaft, 711-external spline shaft, 712-internal spline shaft sleeve, 713-bearing, 714-shaft sleeve, 715-serration; 72-axle boxes; 721-a drive gear; 7211-flat key; 722-driven gear; 723-cover, 724-case; 725-locating the axle pin; 8-a vertical driving mechanism; 9-a bit holder; 91-bit.

Detailed Description

The utility model is further described below.

The utility model provides a drilling machine, which is mainly used for drilling and processing and comprises a base 1, an operation table 2, upright posts 3, a first fixing plate 4, a first motor 6 and a spindle box 7, wherein the operation table 2 is arranged on the base 1, a fixing clamp 21 is arranged on the operation table 2, four upright posts 3 are vertically arranged on the base 1 around the operation table 2, and the first fixing plate 4 is arranged at the top end of the upright posts 3; the first motor 6 is arranged above the first fixed plate 4, the spindle box 7 comprises a transmission shaft 71 and an axle box 72, the transmission shaft 71 comprises an external spline shaft 711, an internal spline shaft sleeve 712 and an axle sleeve 714, the external spline shaft 711 is rotationally connected with the output end of the first motor 6 through a coupler 62, the internal spline shaft sleeve 712 is sleeved outside the external spline shaft 711 and is rotationally connected with the external spline shaft 711, the axle sleeve 714 is sleeved outside the internal spline shaft sleeve 712, a bearing 713 is arranged at the top end of the axle sleeve 714 and is connected with the internal spline shaft sleeve 712, the axle sleeve 714 is externally connected with a vertical driving mechanism 8 for controlling the up-and-down movement of the axle sleeve, a second fixed plate 5 is further arranged between the first fixed plate 4 and the axle box 72, the vertical driving mechanism 8 is arranged on the second fixed plate 5, a through hole is formed in the center of the second fixed plate 5, the axle sleeve 714 passes through the through hole and is connected with the axle box 72, a driving gear 721 which is rotationally connected with the internal spline shaft sleeve 712 is arranged in the axle box 72, a drill bit clamp 9 is connected with the driving gear 721, and the drill bit clamp 9 is connected with the drill bit clamp 91.

As shown in fig. 1 and 2, an operation table 2 is arranged on the base 1, a fixing clamp 21 for fixing a part with a hole is arranged on the operation table 2, a first fixing plate 4 is arranged right above the base 1 through four upright posts 3, the bottom ends of the four upright posts 3 can be fixedly connected or bolted with the base 1, the first fixing plate 4 is fixed on the four upright posts 3 through threaded nuts at the top ends of the upright posts 3, a first motor 6 can be fixedly arranged at the middle position above the first fixing plate 4 through bolts, the center of the first fixing plate 4 is provided with a hole for the output end of the first motor 6 to pass through, as can be seen in combination with fig. 3, the output end of the first motor 6 is rotationally connected with an external spline shaft 711 of a transmission shaft 71 positioned below the first fixing plate 4 through a coupling 62, the external spline shaft 711 is rotationally connected with an internal spline shaft 712, according to fig. 2 and 4, the internal spline shaft sleeve 712 extends into the axle box 72 to be rotationally connected with the driving gear 721 arranged in the axle box 72, in order to facilitate the installation of the driving gear 721 and ensure the installation precision of the driving gear 721, the driving gear 721 can adopt a cylindrical gear, the internal spline shaft sleeve 712 is connected with the driving gear 721 by using a flat key 7211, and the driving gear 721 rotates to drive the drill bit fixture 9 connected with the driving gear 721, thereby driving the drill bit 91 arranged on the drill bit fixture 9 to rotate, so as to provide rotary power for the drill bit 91, and spline fit connection is adopted to realize that the internal spline shaft sleeve 712 can slide up and down along the radial direction of the external spline shaft 711 while rotating along with the external spline shaft 711, thereby meeting the condition that the driving gear 721 in the axle box 72 can also provide rotary power and move up and down along with the axle box 72; simultaneously, the drill bit 91 is arranged through the drill bit clamp 9, and drill bits with different sizes can be selected for drilling according to actual drilling requirements; the shaft sleeve 714 is arranged on the outer side of the inner spline shaft sleeve 712, the lower end of the shaft sleeve 714 is connected with the shaft box 72, the shaft sleeve 714 is externally connected with the vertical driving mechanism 8, and the shaft sleeve 714 is driven to move up and down through the vertical driving mechanism 8, so that the shaft box 72 is driven to move up and down in a feeding manner; in order to facilitate placement of the vertical driving mechanism 8, the four upright posts 3 are further provided with second fixing plates 5 positioned between the first fixing plates 4 and the base 1, the center of each second fixing plate 5 is provided with a hole for a shaft sleeve 714 to penetrate through and then be connected with the shaft box 72 positioned below the second fixing plate 5 so as to drive the up-and-down feeding motion of the shaft box 72, the top end of the shaft sleeve 72 is matched and connected with the inner spline shaft sleeve 712 through a deep groove ball bearing 7222, and the purpose that the inner spline shaft sleeve 712 can move up and down along with the shaft sleeve 714 while rotating along with the outer spline shaft 711 is achieved, and meanwhile the shaft sleeve 714 cannot rotate along with the inner spline shaft sleeve 712 is achieved.

The driving device for providing rotary power and up-and-down feeding power for the drill bit 91, namely the first motor 6 and the vertical driving device 8, are respectively fixedly arranged on the first fixing plate 4 and the second fixing plate 5, so that the driving device does not move along with the movement of the spindle box 7 in the transmission process, the weight of the spindle box 7 is further lightened, the power output for driving the spindle box 7 to move up and down is reduced, and the first motor 6 for providing rotary power and the vertical driving device 8 for providing up-and-down feeding power are separately arranged and do not affect each other, so that the rotary control of the drill bit 91 and the control of the up-and-down feeding motion of the spindle box 7 are more accurate, and meanwhile, the spindle box 7 is not affected by vibration generated by the first motor 6 and the vertical driving device 8 in use, so that the drilling precision is more accurate.

The vertical driving mechanism 8 can be generally matched with corresponding structures such as a sliding chute sliding rail, a gear rack and the like to drive the shaft sleeve to move up and down, the power selection can be electric driving and manual driving, and the manual driving can be adopted to save the cost, specifically, the vertical driving mechanism 8 is a rocker, the output end of the rocker is connected with a gear, the shaft sleeve 714 is provided with a vertical sawtooth part 715 matched with the gear, and the sawtooth part 715 can be directly arranged on the outer side of the shaft sleeve 714 or can be a rack welded on the outer side of the shaft sleeve 714; the worker rotates the remote lever to rotate the gear, and the serration 715 engaged with the gear rotates the shaft sleeve 714 to move up and down along with the gear, thereby driving the shaft box 72 to move up and down.

In order to improve efficiency, the vertical driving mechanism 8 is a second motor, the output end of the second motor is connected with a gear, a vertical sawtooth part 715 matched with the gear is arranged outside the shaft sleeve 714, and the sawtooth part 715 can be directly arranged at the outer side of the shaft sleeve 714 or can be a rack welded at the outer side of the shaft sleeve 714; the gear is driven to rotate through forward rotation and reverse rotation of the second motor, the sawtooth part 715 meshed with the gear drives the shaft sleeve 714 to move up and down along with the rotation of the gear, and then the shaft box 72 is driven to move up and down, so that the up and down feeding motion of the main shaft box 7 is controlled mechanically, the labor is saved and the efficiency is improved, and compared with the manual control of the up and down feeding motion distance of the main shaft box 7, the mechanical control is more accurate.

In order to ensure that the axle box 72 stably slides up and down along with the shaft sleeve 714, as shown in fig. 4, the axle box 72 comprises a cover 723 and a box 724, wherein the box 724 is arranged below the cover 723, the cover 723 is connected with the shaft sleeve 714, and the cover 723 is in sliding connection with the upright post 3; as shown in fig. 1, four corner points of a cover 723 are respectively connected with four upright posts 3 in a matching way through linear bearings 31, a box 724 is arranged below the cover 723, a shaft sleeve 714 is arranged above the cover 723, so that when the shaft sleeve 714 is driven by a vertical driving mechanism 9 to perform up-and-down feeding motion, the cover 723 can stably drive the box 724 and a gear arranged in the box 724 to perform up-and-down feeding motion, phenomena such as offset and the like do not occur, drilling precision is not influenced, and meanwhile, rotation of the gear in the box 724 is not influenced; the case 724, the cover 723 and the sleeve 714 may be integrally formed or assembled.

In order to avoid that the spindle box 7 directly falls down after the power-off of the vertical driving motor 8, as shown in fig. 1 and 2, four upright posts 3 are further sleeved with springs 31, one end of each spring 31 is connected with the base 1, the other end is connected with the bottom surface of the cover 723, and after the springs 32 are arranged, the spindle box 7 cannot fall down easily and is in a reset state at any time.

In order to realize the replacement of gears in the axle box 72 and facilitate the maintenance of the gear assembly, the number of driven gears connected with the gears is increased or reduced, the cover 723 is detachably connected with the box 724, and the specific detachable connection mode can be a bolt connection mode, a mortise-tenon connection mode and the like.

In order to ensure the mounting accuracy of the cover 723 and the case 724, as shown in fig. 4, the cover 723 and the case 724 are fixed by using a positioning pin 725.

For realizing boring a plurality of drilling simultaneously, shorten process time, improve production efficiency, combine fig. 1, fig. 4, fig. 5, the driving gear 721 circumference is rotated at least and is connected with two driven gears 722, every driven gear 722 is connected with bit holder 9, as shown in fig. 5, driving gear 721 circumference rotates and is connected with four driven gears 722, and every driven gear 722 below all is connected with bit holder 9, sets up drill bit 91 through bit holder 9, can select the drill bit of equidimension not according to actual drilling demand to bore a hole, for the installation of being convenient for, driven gear 722 and driving gear 721 all adopt the cylindrical gear setting in the axle box.

Claims

1. The drilling machine comprises a base (1), upright posts (3), a first fixing plate (4), a first motor (6) and a spindle box (7), wherein an operation table (2) is arranged on the base (1), fixing clamps (21) are arranged on the operation table (2), four upright posts (3) are vertically arranged on the base (1) around the operation table (2), and the first fixing plate (4) is arranged at the top end of the upright posts (3); the method is characterized in that:

the first motor (6) is arranged in the middle of the upper part of the first fixed plate (4), the output end of the first motor (6) passes through the first fixed plate (4), the spindle box (7) comprises a transmission shaft (71) and an axle box (72), the transmission shaft (71) comprises an external spline shaft (711), an internal spline shaft sleeve (712) and a shaft sleeve (714), the external spline shaft (711) is rotationally connected with the output end of the first motor (6) through a coupling (62), the internal spline shaft sleeve (712) is sleeved outside the external spline shaft (711) and is rotationally connected with the external spline shaft (711), the shaft sleeve (714) is sleeved outside the internal spline shaft sleeve (712), the top end of the shaft sleeve (714) is provided with a bearing (713) and is connected with the internal spline shaft sleeve (712), the shaft sleeve (714) is externally connected with a vertical driving mechanism (8), the four upright posts (3) are also provided with a second fixed plate (5) positioned between the first fixed plate (4) and the base (1), the vertical driving mechanism (8) is arranged on the second fixed plate (5) and is rotationally connected with the axle box (72), the driving gear (721) is connected with a drill bit clamp (9), and the drill bit clamp (9) is connected with a drill bit (91).

2. A drill press according to claim 1, wherein: the vertical driving mechanism (8) is a rocker, the output end of the rocker is connected with a gear, and a vertical sawtooth part (715) which is matched with the gear is arranged outside the shaft sleeve (714).

3. A drill press according to claim 1, wherein: the vertical driving mechanism is a second motor, a gear is connected to the output end of the second motor, and a vertical sawtooth part (715) matched with the gear is arranged outside the shaft sleeve (714).

4. A drill press according to claim 1, wherein: the axle box (72) comprises a cover body (723) and a box body (724), wherein the box body (724) is arranged below the cover body (723), the top surface of the cover body (723) is connected with the axle sleeve (714), and the cover body (723) is in sliding connection with the upright post (3).

5. A drill press as recited in claim 4, wherein: the four upright posts (3) are also sleeved with springs (32), one ends of the springs (32) are connected with the base (1), and the other ends of the springs are connected with the bottom surface of the cover body (723).

6. A drill press as recited in claim 4, wherein: the cover (723) is detachably connected with the box (724).

7. A drill press according to claim 1, wherein: at least two driven gears (722) are connected to the driving gear (721) in a circumferential direction in a rotating mode, a drill bit clamp (9) is connected to each driven gear (722), and a drill bit (91) is connected to the drill bit clamp (9).