CN210099024U

CN210099024U - Drilling machine capable of adjusting central circle diameter of circular flange bolt hole

Info

Publication number: CN210099024U
Application number: CN201920960304.0U
Authority: CN
Inventors: 蔡钟博
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-24
Filing date: 2019-06-24
Publication date: 2020-02-21
Anticipated expiration: 2029-06-24

Abstract

The utility model discloses a drilling machine of adjustable circular flange bolt hole center circle diameter, it includes the lathe bed, vertically fixes guide pillar support on the lathe bed, slide from top to bottom and set up headstock, drive between the guide pillar support the headstock is followed gliding elevating system from top to bottom between the guide pillar support is with fixing headstock top drive the rotatory main shaft pivoted actuating mechanism of headstock. The utility model has the advantages that: in the process that the rotating main shaft moves along with the shaft seat, the rotating arm drives the intermediate shaft to swing around the position fixing shaft, so that the rotating main shaft moves according to the position of a part to be processed, the moving range of the rotating main shaft is increased, and the adjusting range of the central circle diameter of the flange bolt hole is further increased; the sliding groove, the shaft seat and the adjusting mechanism on the spindle box improve the stability of the rotating spindle in the operation process, increase the rigidity of the rotating spindle and ensure that the drilling precision of parts is higher.

Description

Drilling machine capable of adjusting central circle diameter of circular flange bolt hole

The technical field is as follows:

the utility model relates to a drilling machine field, concretely relates to drilling machine of adjustable circular flange bolt hole center circle diameter.

Background art:

the tail end of a movable rotating main shaft in a main shaft box mechanical structure is connected with the end part of a position fixing shaft of a reduction gear box through a universal joint, and the universal joint is a movable shaft piece, so that the rotating main shaft can move in a limited range, the central positions of a plurality of rotating main shafts can be adjusted, and the central diameters of flange bolt holes of parts to be processed are the same.

The problems existing at present are as follows: firstly, for guaranteeing the life of universal joint, the contained angle of rotatory main shaft and universal joint must not be greater than 15 usually, leads to rotatory main shaft adjustment flange bolt hole central circle diameter range to receive the restriction like this. Secondly, the rotary main shaft moves in an overhanging way, the rotary main shaft is not guided by a closed guide rail, and the rotary main shaft is fixed by a fastener after the central position of the rotary main shaft is adjusted in place, so that the rotary main shaft has poor rigidity and poor verticality precision with a part to be processed, the drilling precision is poor, the diameter of the part to be processed is small, and the diameter is usually below phi 30; thirdly, when the parts to be processed are heavy and are difficult to move manually, the parts are inconvenient to clamp by using the hoisting crown block because the upper part of the workbench is shielded by the main axle box.

The utility model has the following contents:

an object of the utility model is to provide an increase and treat processing part flange bolt hole center circle diameter scope, utilize the convenient drilling machine of adjustable circle flange bolt hole center circle diameter of jack-up overhead traveling crane clamping part.

The utility model discloses by following technical scheme implement: the drilling machine capable of adjusting the central circle diameter of the circular flange bolt hole comprises a machine body, guide pillar supports vertically fixed on the machine body, a spindle box vertically and slidably arranged between the guide pillar supports, a lifting mechanism driving the spindle box to vertically slide along the guide pillar supports, and a driving mechanism fixed at the top of the spindle box and driving a rotary spindle of the spindle box to rotate, wherein the driving mechanism comprises a gearbox fixed at the top of the spindle box and a motor fixed at the top of the gearbox; the gearbox comprises a variable speed input shaft vertically and rotatably arranged in the gearbox and at least two vertically arranged fixed shafts which are in transmission connection with the variable speed input shaft and uniformly arranged at the bottom of the gearbox in an annular shape, and an output shaft of the motor is in transmission connection with the variable speed input shaft;

the spindle box comprises a box body, the bottom end of the fixed shaft penetrates through the box body and is respectively and rotatably connected with the top and the bottom of the box body, horizontally arranged sliding grooves are formed in the top and the bottom of the box body on two sides of the fixed shaft, and the sliding grooves are distributed in a radial shape along the intersection point of the cross-shaped symmetrical center lines of the box body and are uniformly distributed; a shaft seat is arranged in each sliding groove in a sliding manner, the rotating main shaft is rotatably arranged between two shaft seats which are correspondingly arranged up and down, the two shaft seats which are correspondingly arranged up and down are fixedly connected through a connecting piece, the bottom of the rotating main shaft penetrates through the shaft seat at the bottom of the box body and is arranged on the outer side of the box body, and the connecting piece is connected with the box body through an adjusting mechanism; the rotating main shaft is rotatably connected with the corresponding fixed shaft through two link mechanisms, and the rotating main shaft is in transmission connection with the fixed shaft.

Furthermore, the two link mechanisms comprise split intermediate shafts vertically arranged in the box body, and the intermediate shafts are respectively and rotatably connected with the adjacent rotating main shaft and the fixing shaft through rotating arms.

Furthermore, a driving gear is sleeved outside the fixed shaft, an intermediate gear meshed with the driving gear is sleeved outside the intermediate shaft, and a driven gear meshed with the intermediate gear is sleeved outside the rotating main shaft.

Furthermore, the adjusting mechanism comprises a screw rod which is arranged in parallel with the corresponding sliding groove, the side wall of the spindle box is connected with the screw rod in a rotating mode, the screw rod is connected with a nut in a threaded mode, and the nut is fixedly connected with the connecting piece.

Further, the lifting mechanism comprises vertical telescopic rods, a transverse support is fixedly arranged on the guide pillar support above the spindle box, at least two vertical telescopic rods are uniformly fixed on the upper top surface of the transverse support, and the end part of each telescopic rod of each vertical telescopic rod is fixedly connected with the upper end surface of the spindle box; the vertical telescopic rod is any one of an electric push rod, an air cylinder or an oil cylinder.

Furthermore, the device also comprises a movable workbench arranged at the top of the lathe bed in a sliding manner, and an indexing workbench is rotatably connected to the table surface of the movable workbench.

Further, a slide rail is fixedly arranged on the upper surface of the bed body on the inner side of the guide pillar support along the length direction of the bed body, a slide block which slides along the slide rail is fixed at the bottom of the movable workbench, a horizontal telescopic rod which is parallel to the slide rail is fixed on the bed body, and the horizontal telescopic rod is any one of an electric push rod, an air cylinder or an oil cylinder; the end part of a telescopic rod of the horizontal telescopic rod is fixedly connected with the movable workbench.

Furthermore, a stop block is fixed on the bed body at the tail end of the stroke of the movable workbench, and the movable workbench is in movable contact with the stop block.

The utility model has the advantages that: in the process that the rotating main shaft moves along with the shaft seat, the rotating arm drives the intermediate shaft to swing around the position fixing shaft, so that the rotating main shaft moves according to the position of a part to be processed, the moving range of the rotating main shaft is increased, and the adjusting range of the central circle diameter of the flange bolt hole is further increased; the sliding chute, the shaft seat and the adjusting mechanism on the main shaft box improve the stability of the rotating main shaft in the operation process, increase the rigidity of the rotating main shaft, have higher part drilling precision and enlarge the ranges of the central circle diameter and the drilling diameter of the flange bolt hole of the part to be processed; the movable working table is moved out of the guide pillar support under the traction action of the horizontal telescopic rod, so that the hoisting equipment is convenient to clamp parts to be machined, and the trouble caused by placing the parts to be machined by the spindle box on the guide pillar support is avoided.

Description of the drawings:

in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a front view of the utility model;

fig. 2 is a side view of the utility model;

FIG. 3 is a top view of the headstock;

FIG. 4 is a cross-sectional view A-A of the spindle head of FIG. 3;

FIG. 5 is a longitudinal cross-sectional view of the gear reducer;

fig. 6 is a schematic connection diagram between two shaft seats and a connecting piece, which correspond up and down.

In the figure: the automatic numerical control machine tool comprises a machine tool body 1, a guide post support 2, a spindle box 3, a box body 4, a vertical telescopic rod 5, a gearbox 6, a motor 7, an output shaft 8, a fixed shaft 10, a sliding chute 11, a shaft seat 12, a rotating main shaft 13, a screw rod 14, a connecting piece 15, a nut 16, a transverse support 17, a movable workbench 18, an indexing workbench 19, a sliding rail 20, a horizontal telescopic rod 21, a stop block 22, a variable speed input shaft 23, a rotating arm 25, an intermediate shaft 26, a driving gear 27, an intermediate gear 28, a driven gear 29, a sliding block 30, two link mechanisms 31, an adjusting mechanism 32 and a.

The specific implementation mode is as follows:

the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 to 6, the drilling machine capable of adjusting the diameter of the central circle of the circular flange bolt hole comprises a machine body 1, guide pillar supports 2 vertically fixed on the machine body 1, a spindle box 3 vertically slidably arranged between the guide pillar supports 2, a lifting mechanism 33 driving the spindle box 3 to vertically slide along the guide pillar supports 2, and a driving mechanism fixed on the top of the spindle box 3 and driving a rotary spindle 13 of the spindle box 3 to rotate, wherein the driving mechanism comprises a gearbox 6 fixed on the top of the spindle box 3 and a motor 7 fixed on the top of the gearbox 6; the gearbox 6 comprises a variable speed input shaft 23 vertically and rotatably arranged in the gearbox 6 and at least two vertically arranged fixed shafts 10 which are in transmission connection with the variable speed input shaft 23 and are uniformly arranged at the bottom of the gearbox 6 in a ring shape, and an output shaft 8 of the motor 7 is in transmission connection with the variable speed input shaft 23;

the spindle box 3 comprises a box body 4, the bottom end of a fixed shaft 10 penetrates through the box body 4 and is respectively and rotatably connected with the top and the bottom of the box body 4, horizontally arranged sliding grooves 11 are formed in the top and the bottom of the box body 4 on two sides of the fixed shaft 10, and intersection points of the sliding grooves 11 along the cross-shaped symmetrical center line of the box body 4 are distributed in a radial shape and are uniformly distributed; a shaft seat 12 is arranged in each sliding groove 11 in a sliding manner, a rotating main shaft 13 is arranged between two shaft seats 12 which are correspondingly arranged up and down in a rotating manner, the two shaft seats 12 which are correspondingly arranged up and down are fixedly connected through a connecting piece 15, the bottom of the rotating main shaft 13 penetrates through the shaft seat 12 at the bottom of the box body 4 and is arranged on the outer side of the box body 4, the connecting piece 15 is connected with the box body 4 through an adjusting mechanism 32, the adjusting mechanism 32 is used for controlling the shaft seats 12 to move in the sliding grooves 11 by a corresponding distance, the sliding grooves 11, the shaft seats 12 and the adjusting mechanism 32 on the spindle box 3 improve the stability of the rotating main shaft 13 in the operation process, the rigidity of the rotating main shaft 13 is increased, and therefore the drilling precision of parts is improved, and the; the adjusting mechanism 32 includes a screw rod 14 parallel to the corresponding sliding groove 11, the screw rod 14 is rotatably connected to the side wall of the main spindle box 3, a nut 16 is screwed on the screw rod 14, the nut 16 is fixedly connected to the connecting member 15, the nut 16 can displace on the screw rod 14 by rotating the screw rod 14, the nut 16 drives the shaft seat 12 to move, and further drives the rotating spindle 13 to move in the radial direction of the main spindle box 3, and the manner of rotating the screw rod 14 is to manually rotate the end of the screw rod 14 in this embodiment, so that the screw rod 14 rotates.

The rotating main shaft 13 is rotatably connected with the corresponding fixed shaft 10 through two link mechanisms 31, and the rotating main shaft 13 is in transmission connection with the fixed shaft 10. The two link mechanisms 31 comprise split intermediate shafts 26 vertically arranged inside the box body 4, the intermediate shafts 26 are respectively in rotating connection with the adjacent rotating main shafts 13 and the adjacent fixed shafts 10 through rotating arms 25, in the process that the rotating main shafts 13 move along with the shaft seats 12, the rotating arms 25 swing along with the rotating main shafts 13, and the rotating arms 25 can drive the intermediate shafts 26 to swing by taking the fixed shafts 10 as centers in the swinging process, so that the rotating main shafts 13 can move according to the positions of flange bolt holes of parts to be processed, and the adjusting range of the central circle diameter of the flange bolt holes is enlarged. A driving gear 27 is fitted around the outside of the fixed shaft 10, an intermediate gear 28 that meshes with the driving gear 27 is fitted around the outside of the intermediate shaft 26, and a driven gear 29 that meshes with the intermediate gear 28 is fitted around the outside of the rotary main shaft 13.

The lifting mechanism 33 comprises vertical telescopic rods 5, a transverse support 17 is fixedly arranged on the guide post support 2 above the spindle box 3, at least two vertical telescopic rods 5 are uniformly fixed on the upper top surface of the transverse support 17, and the end part of each telescopic rod of each vertical telescopic rod 5 is fixedly connected with the upper end surface of the spindle box 3; the vertical telescopic rod 5 is any one of an electric push rod, a cylinder or an oil cylinder.

The automatic lathe is characterized by further comprising a movable workbench 18 arranged at the top of the lathe bed 1 in a sliding mode, an indexing workbench 19 is connected to the table surface of the movable workbench 18 in a rotating mode, a base of the indexing workbench 19 is arranged between the indexing workbench 19 and the movable workbench, the bottom of the base of the indexing workbench 19 is fixed to the upper surface of the movable workbench 18, and the top of the base of the indexing workbench 19 is connected with the indexing workbench 19 in a rotating mode.

A slide rail 20 is fixedly arranged on the upper surface of the bed body 1 at the inner side of the guide pillar support 2 along the length direction of the bed body 1, a slide block 30 sliding along the slide rail 20 is fixed at the bottom of the movable workbench 18, a horizontal telescopic rod 21 parallel to the slide rail 20 is fixed on the bed body 1, and the horizontal telescopic rod 21 is any one of an electric push rod, an air cylinder or an oil cylinder; the telescopic link tip and the mobile workbench 18 fixed connection of horizontal telescopic link 21, mobile workbench 18 can shift out from guide pillar support 2 through the traction effect of horizontal telescopic link 21, makes things convenient for the hoisting equipment clamping to treat the processing part, avoids headstock 3 on the guide pillar support 2 to cause the puzzlement when placing the processing part.

A stopper 22 is fixed to the bed 1 at the end of the stroke of the movable table 18, and the movable table 18 is in movable contact with the stopper 22. When the movable workbench 18 is in contact with the stop block 22 on the lathe bed 1, the horizontal telescopic rod 21 stops moving, the movable workbench 18 is clamped between the baffle and the horizontal telescopic rod 21, drilling deviation caused by movement of the movable workbench 18 in the operation process is prevented, the stop block 22 can also ensure that the central line of the indexing workbench 19 on the movable workbench 18 and the central line of the main spindle box 3 are on the same straight line, the drilling precision of parts to be machined is improved, the operation is convenient, and the fixing position of the movable workbench 18 is convenient to determine.

The specific operation process of the embodiment is as follows:

1. the movable workbench 18 is pulled away from the lower part of the spindle box 3 on the guide post support 2 through the horizontal telescopic rod 21, the manually moved part to be machined is hoisted to the indexing workbench 19 by utilizing the hoisting overhead crane, the part to be machined is fixed with the indexing workbench 19, the movable workbench 18 is pushed into the guide post support 2 by utilizing the horizontal telescopic rod 21, and the movable workbench 18 stops moving after the movable workbench 18 is contacted with the stop block 22;

2. the spindle box 3 is pushed to move downwards for a certain distance through the vertical telescopic rod 5, so that a drill bit on the rotating spindle 13 is close to a part to be processed, and the corresponding position of the spindle seat 12 is adjusted according to the position of a flange bolt hole on the part to be processed, so that the rotating spindle 13 moves along the sliding groove 11 in the spindle box 3;

3. after the drill bit on each rotating main shaft 13 corresponds to the position of a flange bolt hole on a part to be processed one by one, the motor 7 and the vertical telescopic rod 5 are started to enable the rotating main shaft 13 and the drill bit on the rotating main shaft 13 to rotate together, and the main shaft box 3 moves downwards along the guide pillar support 2 under the feeding matching of the vertical telescopic rod 5 to realize the drilling of the part;

4. the part to be processed is locked after being rotationally indexed through the indexing worktable 19 on the movable worktable 18, and the spindle box 3 is fed again, so that the plurality of flange bolt holes on the part to be processed are drilled.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The drilling machine capable of adjusting the central circle diameter of the circular flange bolt hole comprises a machine body, guide pillar supports vertically fixed on the machine body, a spindle box vertically arranged between the guide pillar supports in a sliding mode, a lifting mechanism driving the spindle box to slide vertically along the guide pillar supports, and a driving mechanism fixed on the top of the spindle box and driving a rotary spindle of the spindle box to rotate, and is characterized in that the driving mechanism comprises a gearbox fixed on the top of the spindle box and a motor fixed on the top of the gearbox; the gearbox comprises a variable speed input shaft vertically and rotatably arranged in the gearbox and at least two vertically arranged fixed shafts which are in transmission connection with the variable speed input shaft and uniformly arranged at the bottom of the gearbox in an annular shape, and an output shaft of the motor is in transmission connection with the variable speed input shaft;

2. The drilling machine capable of adjusting the central circle diameter of the circular flange bolt hole according to claim 1, wherein the two link mechanisms comprise split intermediate shafts vertically arranged inside the box body, and the intermediate shafts are respectively and rotatably connected with the adjacent rotating main shaft and the adjacent fixed shaft through rotating arms.

3. The drilling machine capable of adjusting the center circle diameter of the circular flange bolt hole according to claim 2, wherein a driving gear is sleeved on the outer portion of the fixed shaft, an intermediate gear engaged with the driving gear is sleeved on the outer portion of the intermediate shaft, and a driven gear engaged with the intermediate gear is sleeved on the outer portion of the rotating main shaft.

4. The drilling machine capable of adjusting the diameter of the central circle of the circular flange bolt hole according to claim 1, wherein the adjusting mechanism comprises a screw rod arranged in parallel with the sliding groove, the screw rod is rotatably connected to the side wall of the main spindle box, a nut is screwed on the screw rod, and the nut is fixedly connected with the connecting piece.

5. The drilling machine capable of adjusting the central circle diameter of the circular flange bolt hole according to claim 1, wherein the lifting mechanism comprises a vertical telescopic rod, a transverse support is fixedly arranged on the guide pillar support above the spindle box, at least two vertical telescopic rods are uniformly fixed on the upper top surface of the transverse support, and the end part of each telescopic rod of each vertical telescopic rod is fixedly connected with the upper end surface of the spindle box; the vertical telescopic rod is any one of an electric push rod, an air cylinder or an oil cylinder.

6. The drilling machine capable of adjusting the center circle diameter of the circular flange bolt hole according to any one of claims 1 to 5, further comprising a movable workbench slidably arranged on the top of the machine body, wherein an indexing workbench is rotatably connected to the table surface of the movable workbench.

7. The drilling machine capable of adjusting the central circle diameter of the circular flange bolt hole according to claim 6, wherein a slide rail is fixedly arranged on the upper surface of the machine body on the inner side of the guide post bracket along the length direction of the machine body, a slide block sliding along the slide rail is fixedly arranged at the bottom of the movable worktable, a horizontal telescopic rod parallel to the slide rail is fixedly arranged on the machine body, and the horizontal telescopic rod is any one of an electric push rod, a cylinder or a cylinder; the end part of a telescopic rod of the horizontal telescopic rod is fixedly connected with the movable workbench.

8. The drilling machine capable of adjusting the center circle diameter of the circular flange bolt hole according to claim 7, wherein a stop block is fixed on the machine body at the tail end of the stroke of the movable workbench, and the movable workbench is in movable contact with the stop block.