CN210498477U

CN210498477U - Height adjustment stable form drilling machine

Info

Publication number: CN210498477U
Application number: CN201920448422.3U
Authority: CN
Inventors: 贾慧静
Original assignee: Individual
Current assignee: Yongkang Kaiyuan Power Tools Co ltd
Priority date: 2019-04-03
Filing date: 2019-04-03
Publication date: 2020-05-12
Anticipated expiration: 2029-04-03

Abstract

The utility model relates to the field of machine tool machining, and discloses a height adjustment stable type drilling machine, which comprises a base, a stand column and a machine head, wherein the machine head is connected on the stand column in a floating manner through a machine head seat, the machine head seat comprises a first lantern ring sleeved on the stand column, a hoop is fixed on the stand column, the first lantern ring is connected with the upper surface of the hoop in a floating manner through a first spring, the first spring drives the machine head seat to move upwards, a driving structure capable of driving the machine head seat to move downwards is further arranged between the machine head seat and the stand column, the driving structure comprises a rack which is fixed along the axial direction of the stand column and a rotating shaft which is rotatably connected on the machine head seat and is vertical to the stand column, a gear which is meshed with the rack is fixed on the rotating shaft, a guiding structure which is arranged between the machine head seat and the hoop and assists the machine head seat to move, the anchor ear is provided with a guide hole for passing through the guide rod.

Description

Height adjustment stable form drilling machine

Technical Field

The utility model relates to a machine tool machining technical field especially relates to a height adjustment stable form drilling machine.

Background

A drilling bench drill is a small-sized hole processing machine tool with simple structure and convenient operation, and is suitable for smaller enterprises or special purposes. Its main component part includes base, stand and aircraft nose, is provided with the elevation structure that the drill bit goes up and down with the control drill bit at the aircraft nose to the in-process that the drill bit goes up and down realizes the drilling to the article, is exactly a similar bench drill like the utility model patent that application number is 201520342442.4.

However, in the bench drill in the prior art, the height adjusting structure of the drill bit is designed at the position of the machine head, so that the whole structure of the machine head is responsible, the weight is heavy, and once the machine head is damaged, the machine head is difficult to maintain.

Disclosure of Invention

The utility model discloses to among the prior art bench drill heavy to the aircraft nose design, the shortcoming of complicated structure provides a stable height adjustment stable form bench drill of simple structure and aircraft nose height adjustment.

In order to solve the technical problem, the invention is solved by the following technical scheme:

a height-adjustable stable drilling machine comprises a base, an upright post and a machine head, wherein the machine head is connected to the upright post in a floating manner through a machine head seat, the machine head seat comprises a first lantern ring sleeved on the upright post, a hoop is fixed on the upright post, the first lantern ring is in floating connection with the upper surface of the hoop through a first spring, and the first spring drives the headstock to move upwards, a driving structure capable of driving the headstock to move downwards is arranged between the headstock and the upright post, the driving structure comprises a rack fixed along the axial direction of the upright post and a rotating shaft which is rotatably connected on the headstock and is vertical to the upright post, a gear meshed with the rack is fixed on the rotating shaft, a guide structure assisting the headstock to move along the axial direction of the upright post is further arranged between the headstock and the hoop, the guide structure comprises a guide rod fixed on the headstock and along the axial direction of the upright post, and a guide hole for penetrating through the guide rod is arranged on the hoop.

By adopting the scheme, the rotating shaft rotates and is matched with the gear and the rack, so that the machine head seat can move downwards, the machine head and the drill bit are driven to move downwards, the workpiece is axially punched, and after the rotating shaft is loosened, the machine head seat moves upwards under the action of the spring to reset, so that the drill bit is separated from the workpiece, the height adjusting structure of the machine head is separated from the machine head, the internal structure of the machine head is simplified, and the weight of the machine head is reduced; meanwhile, a guide structure is arranged between the machine head seat and the hoop, so that the machine head and the machine head seat cannot rotate around the stand column when the position of the machine head is adjusted up and down, and the effect that the machine head can slide and be adjusted along the axial direction of the stand column is ensured.

Preferably, the headstock is provided with a fixing hole for passing through the guide rod, and a sidewall threaded hole is formed in a sidewall of the headstock, and the sidewall threaded hole locks the guide rod through a sidewall screw.

By adopting the scheme, through the arrangement of the fixing holes and the threaded holes in the side wall, on one hand, the detachable connection mode between the guide rod and the headstock is realized, on the other hand, the guide rod can be fixed on the headstock along the axial adjustment of the guide rod, and further, when the guide rod moves downwards, the bottom of the guide rod penetrating through the hoop guide hole is prevented from interfering with the lower parts.

Preferably, be provided with the positioning mechanism who is used for the work piece location to put on the base, positioning mechanism is including setting up at least two parallel guide ways of base upper surface, and the T style of calligraphy is fallen in the cross-section journey of guide way, and the cooperation has one to paste the backup plate on the base, pastes that board screw-thread fit has the piece of screwing, and the piece of screwing is including turning round head, screw rod and the section bar nut that penetrates in the guide way.

Adopt above-mentioned scheme, paste through positioning mechanism and lean on the board, paste and lean on the board and can adjust along the guide way, paste at last and lean on the board and carry out locking through the piece of screwing in and fix, same batch part only needs to paste and lean on the board and realize the location, and it is more convenient to process.

Preferably, a pressing mechanism used for pressing the workpiece is arranged on the lower side of the stand column, the pressing mechanism comprises a pressing shell with a sliding sleeve hole, a pressing plate is connected to the lower side of the pressing shell in a shaft mode, a second spring for driving the end to move downwards is arranged between one end of the pressing plate and the pressing shell, a fork-shaped pressing head with a yielding groove is arranged at the other end of the pressing plate, a pivot shaft is arranged between the pressing plate and the end with the second spring, and a control structure which is arranged on the pressing shell and drives the fork-shaped pressing head to press downwards is matched between the pivot shaft and the fork-shaped pressing head.

Preferably, the control structure comprises a driving shaft which is coupled to the pressing shell and located between the fork-shaped pressing head and the pivoting shaft, an eccentric wheel is arranged on the driving shaft, the outer surface of the eccentric wheel is always attached to the upper surface of the pressing plate, and one section of the driving shaft is connected with a pressing handle perpendicular to the driving shaft.

By adopting the scheme, the movable handle is pressed through pressing, the eccentric wheel can be driven to rotate, and then the pressing plate is driven, so that the fork-shaped pressing head is pressed downwards, a workpiece on the bottom plate is fixed and firmly pressed, and the workpiece is punched more conveniently and stably.

Preferably, the headstock is further provided with a second lantern ring below the first lantern ring, the second lantern ring is in sleeve fit with the stand column, and the hoop is located between the first lantern ring and the second lantern ring.

By adopting the scheme, the upper end and the lower end of the headstock are respectively provided with the first lantern ring and the second lantern ring, and the first lantern ring and the second lantern ring are matched with the upright post in a sliding sleeve manner, so that the upper and lower sliding stability of the headstock is improved.

Preferably, the bottom plate is provided with a plugging pile for plugging the upright post, and the side wall of the plugging pile is provided with an upright post locking screw hole matched with a locking bolt.

By adopting the scheme, the stand column is inserted into the pile hole of the splicing pile and then locked into the stand column locking screw hole through the screw, so that the stand column can be quickly and conveniently fixed.

Preferably, the rack is provided with an anti-falling screw which is positioned below the hoop and limits the downward sliding of the hoop.

By adopting the scheme, the hoop bears the whole weight of the machine head in the vertical direction, and once the hoop is loosened and falls down, the hoop is protected by the falling-preventing screw, so that the machine head is prevented from directly falling down to collide with the base.

Preferably, the staple bolt is provided with the groove of stepping down that is used for dodging the rack on the side that is close to the rack, is provided with the elasticity clamping piece at the both sides wall in the groove of stepping down, and the both sides wall of elasticity clamping piece laminating rack.

By adopting the scheme, the clearance between the abdicating groove and the two side walls of the rack is eliminated through the elastic clamping piece, so that the hoop can be prevented from rotating around the upright post, and the machine head is prevented from twisting during drilling.

Preferably, a split used for adjusting the size of the opening of the hoop is arranged at one end, far away from the rack, of the hoop, a rotating bolt used for loosening and tightening the split is arranged through the split, and a pre-tightening bolt used for limiting the maximum opening amplitude of the hoop is further arranged through the split.

Adopt above-mentioned scheme, realize the tight regulation of staple bolt through the rotating bolt, restricted fissured maximum opening range through the pretension bolt to when adjusting the rotating bolt and making the staple bolt loosen, the staple bolt also is as for the opening too big, and then satisfies the staple bolt and keep certain packing force between the stand all the time, makes the staple bolt adjust from top to bottom along the stand on the basis that has the pretightning force, can not appear the risk that the aircraft nose descends in the twinkling of an eye.

Due to the adoption of the technical scheme, the invention has the remarkable technical effects that: the vertical displacement structure for adjusting the machine head is directly arranged between the machine head seat and the upright post, so that the structural design of the machine head is simplified, the design weight of the machine head is reduced under the same condition, the design is more reasonable, and the machine head is more convenient and labor-saving to adjust up and down; in addition, a guide structure is arranged between the machine head seat and the hoop, so that the machine head and the machine head seat cannot rotate around the stand column when the position of the machine head is adjusted up and down, and the effect that the machine head can slide and be adjusted along the axial direction of the stand column is ensured.

Drawings

FIG. 1 is a schematic view of the drilling machine of the present invention;

FIG. 2 is a view showing the drilling machine of the present invention facing away from the shaft;

fig. 3 is a schematic view of the fit between the column and the headstock of the present invention;

fig. 4 is an exploded view of the column and headstock of the present invention;

fig. 5 is an exploded view of the present invention between the base and the positioning mechanism;

fig. 6 is an exploded view of the hold-down mechanism of the present invention;

fig. 7 is the explosion diagram of the hoop of the present invention.

The names of the parts indicated by the numerical references in the above figures are as follows: 1. a base; 11. a guide groove; 12. inserting piles; 121. the upright post locks the screw hole; 2. a column; 21. a rack; 211. anti-falling screws; 3. a machine head; 4. a headstock; 41. a fixing hole; 42. a sidewall threaded hole; 43. a first collar; 44. a second collar; 45. a rotating shaft; 46. a gear; 47. a hand wheel; 5. a guide bar; 6. hooping; 61. a guide hole; 62. a first spring; 63. a yielding groove; 64. an elastic clamping sheet; 65. pre-tightening the bolts; 66. rotating the bolt; 7. attaching a backing plate; 71. rotating the head; 72. a section nut; 8. compressing the shell; 81. a sliding sleeve hole; 82. pressing a plate; 83. a pivot shaft; 84. a second spring; 9. a drive shaft; 91. an eccentric wheel; 92. the handle is pressed.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Example 1

A height-adjustable stable drilling machine is shown in figures 1-4 and comprises a base 1, a stand column 2 and a machine head 3, wherein a series of transmission structures and a drill bit are arranged in the machine head 3, and the principle of the parts is not changed, so that the details are not described herein. Wherein the aircraft nose 3 is fixed on headstock 4, and headstock 4 still is provided with staple bolt 6 including cup jointing first lantern ring 43 and the second lantern ring 44 on stand 2, and one of them one end of staple bolt 6 has the breach, adjusts the range of opening and shutting of breach through rotating bolt 66, and then realizes holding tightly or loosening between staple bolt 6 and stand 2.

Wherein, a first spring 62 is arranged between the hoop 6 and the first collar 43, the headstock 4 is lifted up in a floating way through the first spring 62, and the original upper and lower positions of the machine head 3 are adjusted by changing the upper and lower fixed positions of the hoop 6 on the upright post 2. The driving mechanism for adjusting the downward movement of the headstock 4 is further arranged between the headstock 4 and the column 2, the driving mechanism comprises a rack 21 fixed along the axial direction of the column 2 and a rotating shaft 45 rotatably connected to the headstock 4 and perpendicular to the column 2, a gear 46 meshed with the rack 21 is fixed on the rotating shaft 45, the rotating shaft 45 is pivoted on two pivoting sleeves arranged on the headstock 4, and the gear 46 is arranged between the two pivoting sleeves. The end part of the rotating shaft 45 is provided with a hand wheel 47, so that after the hand wheel 47 is rotated, the rotating shaft 45 and the gear 46 are driven to rotate, the gear 46 rotates to drive the headstock 4 to move downwards due to the meshing relation with the rack 21, the headstock 3 and the drill bit are driven to move downwards, the workpiece is drilled, after the hand is loosened, the headstock 4 is reset upwards under the action of the spring, the drill bit is separated from the contact with the workpiece, and the whole drilling process is completed.

Further, in order to improve the safety of the machine head in the up-down adjustment process, the rack 21 is provided with an anti-falling screw 211, the anti-falling screw 211 is positioned below the hoop 6, and the anti-falling screw 21 limits the downward sliding of the hoop 6.

In order to avoid the rotating deflection of the headstock 4 around the upright post 2 in the up-and-down movement process, a guide structure is further arranged between the headstock 4 and the hoop 6, the guide structure comprises a guide rod 5 which is fixed on the headstock 4 and is along the axial direction of the upright post 2, and a guide hole 61 for penetrating through the guide rod 5 is arranged on the hoop 6. And in order that the guide rod 5 can be fixed on the headstock 4 along the axial adjustment thereof, and further prevent the guide rod 5 from moving downwards, the bottom of the guide rod 5 penetrating through the guide hole 61 of the hoop 6 interferes with the lower part, the guide rod 5 is fixedly matched with the headstock 4 in an inserting manner, the headstock 4 is provided with a fixing hole 41 for penetrating through the guide rod 5, the side wall of the headstock 4 is provided with a side wall threaded hole 42, and the side wall threaded hole 42 can lock the guide rod 5 through a side wall screw.

Example 2

A height adjustment stable form drilling machine, participate in figure 5, on embodiment 1's basis, increased positioning mechanism, positioning mechanism includes setting up at least two guide ways 11 that are parallel to each other on base 1 upper surface, and the cross-section journey of guide way 11 is the T style of calligraphy, has a subsides board 7 in the cooperation on base 1, leans on board 7 screw-thread fit to have a screwing piece, and the screwing piece includes spiral head 71, screw rod and penetrates the section bar nut 72 in the guide way 11. Therefore, the workpiece to be machined can be positioned on the single side only by leaning against the leaning plate 7, and the workpiece is convenient to punch.

Example 3

A height adjustment stable type drilling machine, with reference to fig. 6, adds a pressing mechanism for pressing a workpiece on the basis of

embodiment

1 or 2, the pressing mechanism includes a pressing housing 8 with a sliding sleeve hole 81, a pressing plate 82 is coupled to the lower side of the pressing housing 8, a second spring 84 for driving one end of the pressing plate 82 downward is arranged between the pressing housing 8 and one end of the pressing plate 82, a fork-shaped pressing head with a recess is arranged at the other end of the pressing plate 82, and a pivot shaft 83 is arranged between the fork-shaped pressing head and the end with the second spring 84 of the pressing plate 82. Wherein, a driving shaft 9 between the fork-shaped pressing head and the pivoting shaft 83 is further arranged at the pressing shell 8, an eccentric wheel 91 is arranged on the driving shaft 9, the outer surface of the eccentric wheel 91 is always attached to the upper surface of the pressing plate 82, and one section of the driving shaft 9 is connected with a pressing handle 92 which is perpendicular to the driving shaft 9. Therefore, when parts need to be machined, the forked-shaped pressing head can be pressed on the workpiece only by rotating the pressing handle 92, the workpiece is fixed on the bottom plate, then the hand wheel 47 is rotated, and the drill bit descends to drill the parts between the yielding grooves.

Example 4

A height adjustment stable form drilling machine, join in fig. 7, on the basis of embodiment one, has optimized the staple bolt structure. Firstly, the pre-tightening bolt 65 is additionally arranged at the split part, and the maximum opening range of the split is limited through the pre-tightening bolt 65, so that when the hoop is loosened by adjusting the rotating bolt 66, the hoop is not too large in opening, a certain pressing force between the hoop 6 and the stand column is always kept, the hoop is adjusted up and down along the stand column on the basis of the pre-tightening force, and the risk that the head drops down instantly is avoided.

Secondly, the groove 63 department of stepping down at the staple bolt has set up elasticity chucking piece 64, fixes the downside at the staple bolt through the screw with the one end of elasticity chucking piece, and the evagination side of elasticity chucking piece 64 sets up in the groove 63 of stepping down relatively to after the groove of stepping down passes rack 21, elasticity chucking piece 64 can die the both sides limit card of rack 21, eliminates the clearance between the two, and the time head wrench movement when preventing appearing drilling.

Claims

1. The utility model provides a high adjustment stable form drilling machine, includes base (1), stand (2) and aircraft nose (3), its characterized in that: the machine head (3) is connected to the upright post (2) in a floating manner through the machine head seat (4), the machine head seat (4) comprises a first lantern ring (43) sleeved on the upright post (2), an anchor ear (6) is fixed on the upright post (2), the first lantern ring (43) is connected with the upper surface of the anchor ear (6) in a floating manner through a first spring (62), the first spring (62) drives the machine head seat (4) to move upwards, a driving structure capable of driving the machine head seat (4) to move downwards is further arranged between the machine head seat (4) and the upright post (2), the driving structure comprises a rack (21) axially fixed along the upright post (2) and a rotating shaft (45) rotatably connected to the machine head seat (4) and perpendicular to the upright post (2), a gear (46) meshed with the rack (21) is fixed on the rotating shaft (45), and a guide structure assisting the machine head seat (4) to move axially along the upright post (2) is further arranged between the machine head seat (4) and the anchor ear (6), the guide structure comprises a guide rod (5) which is fixed on the headstock (4) and along the axial direction of the upright post (2), and a guide hole (61) which is used for penetrating through the guide rod (5) is arranged on the hoop (6).

2. The height adjustable stabilized drill according to claim 1, wherein: the headstock (4) is provided with a fixing hole (41) for penetrating through the guide rod (5), the side wall of the headstock (4) is provided with a side wall threaded hole (42), and the side wall threaded hole (42) locks the guide rod (5) through a side wall screw.

3. The height adjustable stabilized drill according to claim 1, wherein: be provided with the positioning mechanism who is used for the work piece location to put on base (1), positioning mechanism is including setting up at base (1) upper surface at least two guide ways (11) that are parallel to each other, and the cross-section journey of guide way (11) is the T style of calligraphy, and the cooperation has a backup plate (7) on base (1), and backup plate (7) screw-thread fit has the piece of screwing, and the piece of screwing is including turning round head (71), screw rod and penetrating section bar nut (72) in guide way (11).

4. The height adjustable stabilized drill according to claim 1, wherein: be provided with the hold-down mechanism who is used for compressing tightly the work piece in the downside of stand (2), hold-down mechanism is including pressing casing (8) that have sliding sleeve hole (81), it has a clamp plate (82) to connect to have a downside hub connection at pressing casing (8), be provided with between clamp plate (82) one end and pressing casing (8) and order about this end decurrent second spring (84), the other end of clamp plate (82) is provided with the forked form pressure head that has the groove of stepping down, be provided with pin joint axle (83) between clamp plate (82) is in forked form pressure head and has the one end of second spring (84), the cooperation has one to set up on pressing casing (8) and order about the control structure that forked form pressure head pushed down between pin joint axle (83) and forked form pressure head.

5. The height adjustable stabilized drill according to claim 4, wherein: the control structure comprises a driving shaft (9) which is coupled at the position of the pressing shell (8) and is positioned between the fork-shaped pressing head and the pivoting shaft (83), an eccentric wheel (91) is arranged on the driving shaft (9), the outer surface of the eccentric wheel (91) is always attached to the upper surface of the pressing plate (82), and one section of the driving shaft (9) is connected with a pressing handle (92) which is perpendicular to the driving shaft (9).

6. The height adjustable stabilized drill according to claim 1, wherein: the headstock (4) is also provided with a second lantern ring (44) below the first lantern ring (43), the second lantern ring (44) is in sleeved fit with the upright post (2), and the hoop (6) is arranged between the first lantern ring (43) and the second lantern ring (44).

7. The height adjustable stabilized drill according to claim 1, wherein: an inserting pile (12) for inserting the upright post (2) is arranged on the base (1), an upright post locking screw hole (121) is arranged on the side wall of the inserting pile, and the upright post locking screw hole is matched with a locking bolt.

8. The height adjustable stabilized drill according to claim 1, wherein: the rack (21) is provided with an anti-falling screw (211), the anti-falling screw (211) is positioned below the hoop, and the anti-falling screw limits the downward sliding of the hoop.

9. The height adjustable stabilized drill according to claim 1, wherein: one side of the hoop (6) close to the rack (21) is provided with a yielding groove (63) for yielding the rack, two side walls of the yielding groove are provided with elastic clamping sheets (64), and the elastic clamping sheets are attached to the two side walls of the rack.

10. A height adjustable stabilized drill according to claim 1 or 9, characterised in that: one end of the hoop (6) far away from the rack (21) is provided with a split for adjusting the size of the opening of the hoop, a rotating bolt (66) for loosening and tightening the split is arranged through the split, and a pre-tightening bolt (65) for limiting the maximum opening amplitude of the hoop is arranged through the split.