阅读说明：本技术 一种精密齿轮用钻孔装置 (Drilling device for precision gear ) 是由 陈斌 于 2020-06-12 设计创作，主要内容包括：本发明属于钻孔技术领域,尤其是一种精密齿轮用钻孔装置,针对现有的钻孔作业时齿轮定位不稳固的问题,现提出如下方案,其包括底座,所述底座的顶部中心位置开设有第一环形槽,第一环形槽内转动安装有转筒,且转筒的顶端延伸至底座的上方,转筒的内壁固定安装有环形齿条,第一环形槽的四周开设有第二环形槽,第二环形槽内活动安装有第一锥齿,且第一锥齿固定套接在转筒上,底座的顶部中心位置固定安装有环形板,且环形板位于转筒内。本发明结构简单,设计合理,操作方便,能够对不同尺寸的齿轮进行夹紧,提高了钻孔作业的良率,降低了生产成本,适合推广使用。(The invention belongs to the technical field of drilling, in particular to a drilling device for a precision gear, which aims at the problem of unstable gear positioning in the existing drilling operation and provides the following scheme. The gear clamping device is simple in structure, reasonable in design and convenient to operate, gears with different sizes can be clamped, the yield of drilling operation is improved, the production cost is reduced, and the gear clamping device is suitable for popularization and use.)

1. The drilling device for the precision gear comprises a base (1) and is characterized in that a first annular groove (2) is formed in the center of the top of the base (1), a rotary drum (3) is installed in the first annular groove (2) in a rotating mode, the top end of the rotary drum (3) extends to the upper portion of the base (1), an annular rack (4) is fixedly installed on the inner wall of the rotary drum (3), a second annular groove (5) is formed in the periphery of the first annular groove (2), first conical teeth (6) are movably installed in the second annular groove (5), the first conical teeth (6) are fixedly sleeved on the rotary drum (3), an annular plate (7) is fixedly installed in the center of the top of the base (1), the annular plate (7) is located in the rotary drum (3), four sliding holes (8) are evenly formed in the annular plate (7) at equal intervals, sliding rods (9) are installed in the four sliding holes (8) in a sliding mode, one end of each of the four sliding rods (9) close to each other extends into the annular plate (7), clamping plates (10) are fixedly mounted on the ends, the other ends of the four sliding rods (9) extend out of the annular plate (7), moving frames (11) are fixedly mounted on the ends, anti-skidding rubber pads (12) are fixedly mounted on one sides of the four clamping plates (10) close to each other, four rotating shafts (13) are uniformly and rotatably mounted on the top of the base (1) in an equidistance mode by taking the annular plate (7) as a center, the four rotating shafts (13) are located between the annular rack (4) and the annular plate (7), gears (14) are fixedly sleeved on the tops of the four rotating shafts (13), the gears (14) are located below the sliding rods (9), the gears (14) are meshed with the annular rack (4), fixing pins (15) are fixedly mounted on the tops of the gears (14), and the four fixing pins (15) are respectively slidably mounted in the four moving frames (11), one side of base (1) is seted up flutedly (16), and recess (16) are linked together with second ring channel (5), and bull stick (17) are installed to recess (16) internal rotation, and outside the one end of bull stick (17) extended to base (1), and fixed mounting had hand wheel (19), and the other end of bull stick (17) extends to in second ring channel (5), and fixed cover has connect second toper tooth (18).

2. A drilling device for a precision gear according to claim 1, characterized in that the first conical tooth (6) and the second conical tooth (18) are arranged vertically and the first conical tooth (6) and the second conical tooth (18) are engaged.

3. The drilling device for the precision gear according to claim 1, wherein a through hole (20) is formed in one side of the hand wheel (19), a moving rod (21) is slidably mounted in the through hole (20), and two ends of the moving rod (21) extend out of the through hole (20).

4. The drilling device for the precision gear according to claim 3, wherein a positioning block (23) is fixedly arranged at one end of the moving rod (21) close to the base (1), and a pull ring (22) is fixedly arranged at the other end of the moving rod (21).

5. The drilling device for the precision gear according to claim 3, wherein the moving rod (21) is movably sleeved with a spring (25), and two ends of the spring (25) are respectively and fixedly installed on one side of the positioning block (23) and one side of the hand wheel (19) which are close to each other.

6. The drilling device for the precision gear according to claim 1, wherein a plurality of positioning grooves (24) are uniformly formed in one side of the base (1) close to the hand wheel (19) in an annular shape by taking the rotating rod (17) as a center, and the positioning grooves (24) are matched with the positioning blocks (23).

Technical Field

The invention relates to the technical field of drilling, in particular to a drilling device for a precision gear.

Background

The gear is a mechanical element with teeth on a rim and capable of continuously meshing and transmitting motion and power, and is a toothed mechanical part capable of meshing with each other, the diameter of a large gear is one time of that of a small gear, the application of the gear in transmission is very early, more than 300 years ago in the year before the year of the official, and the problem of transmitting rotary motion by using bronze or cast iron gears is explained in the mechanical problem of ancient philosopher, namely, the principle of generating a cutting method and the successive appearance of a special machine tool and a cutter for cutting teeth by using the principle are realized at the end of 19 th century, so that the gear machining has a complete means, and along with the development of production, the running stability of the gear is emphasized, and therefore, the demand for a drilling device for gear machining is increased day by day.

The patent that publication number is CN209849934U discloses a drilling equipment for gear machining, which comprises a workbench, workstation top fixedly connected with support, support right side fixedly connected with electric telescopic handle, the terminal fixedly connected with installation piece of electric telescopic handle main shaft, the inboard fixedly connected with motor in installation piece top, the terminal fixedly connected with connecting block of motor main shaft, the first drill bit of connecting block bottom fixedly connected with, first drill bit bottom fixedly connected with second drill bit, installation piece outside fixedly connected with outer tube, the inboard sliding connection of outer tube has interior sleeve pipe, interior sleeve pipe top fixedly connected with spring, the spring top with outer tube fixed connection. But the gear can not be automatically clamped during drilling operation, and needs to be manually fixed, so that the requirements of users are difficult to meet.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a drilling device for a precision gear.

In order to achieve the purpose, the invention adopts the following technical scheme:

a drilling device for a precision gear comprises a base, wherein a first annular groove is formed in the top center of the base, a rotary drum is rotatably installed in the first annular groove, the top end of the rotary drum extends to the upper side of the base, an annular rack is fixedly installed on the inner wall of the rotary drum, a second annular groove is formed in the periphery of the first annular groove, first bevel teeth are movably installed in the second annular groove and fixedly sleeved on the rotary drum, an annular plate is fixedly installed at the top center of the base and positioned in the rotary drum, four sliding holes are uniformly formed in the annular plate at equal distances, sliding rods are slidably installed in the four sliding holes, one ends, close to each other, of the four sliding rods extend into the annular plate, clamping plates are fixedly installed, the other ends of the four sliding rods extend out of the annular plate, a moving frame is fixedly installed, an anti-skid rubber pad is fixedly installed on one side, close to each other, of the four clamping plates, the top of base uses the annular slab to evenly rotate as the center equidistance and installs four pivots, and four pivots all are located between annular rack and the annular slab, the equal fixed cup in top of four pivots has connect the gear, the gear is located the below of slide bar, and gear and annular rack mesh mutually, the equal fixed mounting in top of gear has the fixed pin, four fixed pins are slidable mounting respectively in four removal frames, the recess has been seted up to one side of base, and recess and second ring channel communicate mutually, the bull stick is installed to the recess internal rotation, the one end of bull stick extends to outside the base, and fixed mounting has the hand wheel, the other end of bull stick extends to in the second ring channel, and fixed cup joints there is the second toper tooth.

Preferably, the first bevel gear and the second bevel gear are arranged vertically, and the first bevel gear and the second bevel gear are meshed.

Preferably, a through hole is formed in one side of the hand wheel, a moving rod is slidably mounted in the through hole, and two ends of the moving rod extend out of the through hole.

Preferably, one end of the movable rod close to the base is fixedly provided with a positioning block, and the other end of the movable rod is fixedly provided with a pull ring.

Preferably, the movable rod is movably sleeved with a spring, and two ends of the spring are respectively and fixedly installed on one side of the positioning block, which is close to the hand wheel.

Preferably, one side of the base close to the hand wheel is provided with a plurality of positioning grooves in an annular shape by taking the rotating rod as a center, and the positioning grooves are matched with the positioning blocks.

In the drilling device for the precision gear, when the gear needs to be drilled, the gear to be machined is placed in the annular plate, the pull ring is pulled to drive the moving rod fixedly connected with the pull ring, so that the positioning block moves, when the positioning block moves out of the positioning groove, the spring is in a compressed state, the limitation on the hand wheel is removed, the hand wheel is rotated to drive the rotating rod fixedly connected with the hand wheel to rotate, so that the second bevel gear fixedly sleeved on the rotating rod is driven to rotate, the first bevel gear can be driven to rotate due to the meshing of the second bevel gear and the first bevel gear, the annular rack can be driven to rotate due to the fixed connection relationship among the first bevel gear, the rotating cylinder and the annular rack, the gear can be driven to rotate due to the meshing of the annular rack and the gear, so that the fixed pin fixedly arranged on the gear is driven to rotate, and the sliding hole and the sliding rod are arranged, the slide bar has been restricted, make the slide bar only can slide in the slide opening, then make the removal frame only can slide along the direction of slide opening, because of fixed pin slidable mounting in removing the frame, so make four remove the direction removal of frame towards the annular slab, because of removing the frame, fixed connection relation between slide bar and the splint, thereby make four splint be close to each other, when four splint will treat the gear clamp of processing tightly, loosen the pull ring, because of the elastic restoring force of spring, the squeeze location piece, make the locating piece remove, and come in and go out in the constant head tank, thereby will treat that the gear centre gripping of processing is fixed. The gear clamping device is simple in structure, reasonable in design and convenient to operate, gears with different sizes can be clamped, the yield of drilling operation is improved, the production cost is reduced, and the gear clamping device is suitable for popularization and use.

Drawings

FIG. 1 is a schematic structural view of a drilling apparatus for precision gears according to the present invention;

FIG. 2 is a left side view of FIG. 1 of a precision gear drilling apparatus according to the present invention;

FIG. 3 is a schematic structural view of part A of FIG. 1 of a drilling apparatus for precision gears according to the present invention;

fig. 4 is a schematic structural diagram of a part B of fig. 2 of the drilling device for a precision gear according to the present invention.

In the figure: the device comprises a base 1, a first annular groove 2, a rotary drum 3, an annular rack 4, a second annular groove 5, a first bevel gear 6, an annular plate 7, a sliding hole 8, a sliding rod 9, a clamping plate 10, a movable frame 11, an anti-skid rubber pad 12, a rotating shaft 13, a gear 14, a fixed pin 15, a groove 16, a rotating rod 17, a second bevel gear 18, a hand wheel 19, a through hole 20, a movable rod 21, a pull ring 22, a positioning block 23, a positioning groove 24 and a spring 25.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Example one

Referring to fig. 1-4, a drilling device for precision gears comprises a base 1, a first annular groove 2 is formed in the top center of the base 1, a rotary drum 3 is rotatably installed in the first annular groove 2, the top end of the rotary drum 3 extends to the upper side of the base 1, an annular rack 4 is fixedly installed on the inner wall of the rotary drum 3, a second annular groove 5 is formed around the first annular groove 2, a first bevel gear 6 is movably installed in the second annular groove 5, the first bevel gear 6 is fixedly sleeved on the rotary drum 3, an annular plate 7 is fixedly installed at the top center of the base 1, the annular plate 7 is located in the rotary drum 3, four sliding holes 8 are uniformly formed in the annular plate 7 at equal intervals, sliding rods 9 are slidably installed in the four sliding holes 8, one ends of the four sliding rods 9, which are close to each other, extend into the annular plate 7, clamping plates 10 are fixedly installed, and the other ends of the four sliding rods 9 extend out of the annular plate 7, and are all fixedly provided with a movable frame 11, one sides of the four clamping plates 10 close to each other are all fixedly provided with anti-skid rubber pads 12, the top of the base 1 is uniformly and rotatably provided with four rotating shafts 13 at equal intervals by taking the annular plate 7 as a center, the four rotating shafts 13 are all positioned between the annular rack 4 and the annular plate 7, the tops of the four rotating shafts 13 are all fixedly sleeved with gears 14, the gears 14 are positioned below the sliding rods 9, the gears 14 are meshed with the annular rack 4, the tops of the gears 14 are all fixedly provided with fixing pins 15, the four fixing pins 15 are respectively and slidably arranged in the four movable frames 11, one side of the base 1 is provided with a groove 16, the groove 16 is communicated with the second annular groove 5, the groove 16 is rotatably provided with a rotating rod 17, one end of the rotating rod 17 extends out of the base 1 and is fixedly provided with a hand wheel 19, the other end of the rotating rod 17 extends into the second annular groove 5 and is fixedly sleeved with a second conical tooth 18, first awl tooth 6 rotates, can drive annular rack 4 and rotate, because of annular rack 4 and gear 14 mesh mutually, so can drive gear 14 and rotate, then drive fixed mounting's fixed pin 15 on gear 14 and rotate, the setting of slide opening 8 and slide bar 9, slide bar 9 has been restricted, make slide bar 9 only can slide in slide opening 8, then make to remove frame 11 and only can slide along the direction of slide opening 8, because of fixed pin 15 slidable mounting is in removing frame 11, so make four remove frame 11 and remove towards the direction of annular slab 7, because of removing frame 11, the fixed connection relation between slide bar 9 and the splint 10, thereby make four splint 10 be close to each other.

In the invention, the first bevel gear 6 and the second bevel gear 18 are vertically arranged, the first bevel gear 6 is meshed with the second bevel gear 18, and the second bevel gear 18 rotates to drive the first bevel gear 6 to rotate.

In the invention, one side of the hand wheel 19 is provided with a through hole 20, a moving rod 21 is arranged in the through hole 20 in a sliding way, and two ends of the moving rod 21 extend out of the through hole 20.

In the invention, one end of the movable rod 21 close to the base 1 is fixedly provided with a positioning block 23, the other end of the movable rod 21 is fixedly provided with a pull ring 22, and the positioning block 23 can be driven to move by pulling the pull ring 22.

In the invention, the moving rod 21 is movably sleeved with the spring 25, two ends of the spring 25 are respectively and fixedly installed at one side of the positioning block 23 and the hand wheel 19 which are close to each other, and the elastic restoring force of the spring 25 can extrude the positioning block 23, so that the positioning block 23 moves.

In the invention, a plurality of positioning grooves 24 are uniformly formed in the side, close to the hand wheel 19, of the base 1 by taking the rotating rod 17 as a center in an annular shape, the positioning grooves 24 are matched with the positioning blocks 23, and the positioning blocks 23 can be inserted into the positioning grooves 24.

Example two

Referring to fig. 1-4, a drilling device for precision gears comprises a base 1, a first annular groove 2 is formed in the top center of the base 1, a rotary drum 3 is rotatably installed in the first annular groove 2, the top end of the rotary drum 3 extends to the upper side of the base 1, an annular rack 4 is fixedly installed on the inner wall of the rotary drum 3, a second annular groove 5 is formed around the first annular groove 2, a first bevel gear 6 is movably installed in the second annular groove 5, the first bevel gear 6 is fixedly sleeved on the rotary drum 3, an annular plate 7 is fixedly installed at the top center of the base 1, the annular plate 7 is located in the rotary drum 3, four sliding holes 8 are uniformly formed in the annular plate 7 at equal intervals, sliding rods 9 are slidably installed in the four sliding holes 8, one ends of the four sliding rods 9, which are close to each other, extend into the annular plate 7, clamping plates 10 are fixedly installed, and the other ends of the four sliding rods 9 extend out of the annular plate 7, and are all fixedly provided with a movable frame 11, one sides of the four clamping plates 10 close to each other are all fixedly provided with anti-skid rubber pads 12, the top of the base 1 is uniformly and rotatably provided with four rotating shafts 13 at equal intervals by taking the annular plate 7 as a center, the four rotating shafts 13 are all positioned between the annular rack 4 and the annular plate 7, the tops of the four rotating shafts 13 are all fixedly sleeved with gears 14, the gears 14 are positioned below the sliding rods 9, the gears 14 are meshed with the annular rack 4, the tops of the gears 14 are all fixedly provided with fixing pins 15, the four fixing pins 15 are respectively and slidably arranged in the four movable frames 11, one side of the base 1 is provided with a groove 16, the groove 16 is communicated with the second annular groove 5, the groove 16 is rotatably provided with a rotating rod 17, one end of the rotating rod 17 extends out of the base 1 and is fixedly provided with a hand wheel 19, the other end of the rotating rod 17 extends into the second annular groove 5 and is fixedly sleeved with a second conical tooth 18, first awl tooth 6 rotates, can drive annular rack 4 and rotate, because of annular rack 4 and gear 14 mesh mutually, so can drive gear 14 and rotate, then drive fixed mounting's fixed pin 15 on gear 14 and rotate, the setting of slide opening 8 and slide bar 9, slide bar 9 has been restricted, make slide bar 9 only can slide in slide opening 8, then make to remove frame 11 and only can slide along the direction of slide opening 8, because of fixed pin 15 slidable mounting is in removing frame 11, so make four remove frame 11 and remove towards the direction of annular slab 7, because of removing frame 11, the fixed connection relation between slide bar 9 and the splint 10, thereby make four splint 10 be close to each other.

In the invention, the first bevel gear 6 and the second bevel gear 18 are vertically arranged, the first bevel gear 6 is meshed with the second bevel gear 18, and the second bevel gear 18 rotates to drive the first bevel gear 6 to rotate.

In the invention, one side of the hand wheel 19 is provided with a through hole 20, a moving rod 21 is arranged in the through hole 20 in a sliding way, and two ends of the moving rod 21 extend out of the through hole 20.

In the invention, one end of the movable rod 21 close to the base 1 is fixedly provided with a positioning block 23, the other end of the movable rod 21 is fixedly provided with a pull ring 22, and the positioning block 23 can be driven to move by pulling the pull ring 22.

In the invention, the moving rod 21 is movably sleeved with the spring 25, two ends of the spring 25 are respectively and fixedly installed at one side of the positioning block 23 and the hand wheel 19 which are close to each other, and the elastic restoring force of the spring 25 can extrude the positioning block 23, so that the positioning block 23 moves.

In the invention, a plurality of positioning grooves 24 are uniformly formed in the side, close to the hand wheel 19, of the base 1 by taking the rotating rod 17 as a center in an annular shape, the positioning grooves 24 are matched with the positioning blocks 23, and the positioning blocks 23 can be inserted into the positioning grooves 24.

In the invention, when a gear needs to be drilled, the gear to be machined is placed in the annular plate 7, the pull ring 22 is pulled to drive the moving rod 21 fixedly connected with the pull ring 22, so that the positioning block 23 moves, when the positioning block 23 moves out of the positioning groove 24, the spring 25 is in a compressed state at the moment, the limitation on the hand wheel 19 is removed, the hand wheel 19 is rotated to drive the rotating rod 17 fixedly connected with the hand wheel 19 to rotate, so that the second conical teeth 18 fixedly sleeved on the rotating rod 17 are driven to rotate, the first conical teeth 6 can be driven to rotate due to the meshing of the second conical teeth 18 and the first conical teeth 6, the annular rack 4 can be driven to rotate due to the fixed connection relationship among the first conical teeth 6, the rotating rod 3 and the annular rack 4, the annular rack 4 and the gear 14 are meshed, so that the gear 14 can be driven to rotate, and then the fixing pin 15 fixedly arranged on the gear 14 is driven to rotate, slide opening 8 and slide bar 9's setting, slide bar 9 has been restricted, make slide bar 9 only slide in slide opening 8, then make removal frame 11 only slide along slide opening 8's direction, because of fixed pin 15 slidable mounting is in removing frame 11, so make four removal frames 11 remove towards the direction of annular slab 7, because of removing frame 11, the fixed connection relation between slide bar 9 and the splint 10, thereby make four splint 10 be close to each other, when four splint 10 will treat the gear clamp of processing tight, loosen pull ring 22, because of spring 25's elastic restoring force, squeeze positioning block 23, make positioning block 23 remove, and come in and go out in positioning groove 24, thereby the gear centre gripping that will treat processing is fixed. The gear clamping device is simple in structure, reasonable in design and convenient to operate, gears with different sizes can be clamped, the yield of drilling operation is improved, the production cost is reduced, and the gear clamping device is suitable for popularization and use.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.