CN211218732U

CN211218732U - Portable center hole drilling device

Info

Publication number: CN211218732U
Application number: CN201921793919.5U
Authority: CN
Inventors: 郑凯; 李雪伟; 周士华; 叶进; 郭宝玉; 杜永建; 张攀
Original assignee: Henan Energy Chemical Group Heavy Equipment Co ltd
Current assignee: Henan Energy Chemical Group Heavy Equipment Co ltd
Priority date: 2019-10-24
Filing date: 2019-10-24
Publication date: 2020-08-11
Anticipated expiration: 2029-10-24

Abstract

The utility model relates to a just, move formula and bore centre bore device, which comprises a base, the base includes riser and bottom plate, and the cross-section is "the crack" shape after riser and bottom plate are connected, has seted up the guiding hole on the riser, and riser one side is provided with the chuck, the bottom plate both sides can be dismantled and be connected with the bearing frame, rotate between two bearing frames and be connected with the transmission shaft, and the transmission shaft middle part is provided with drive gear, and transmission shaft one end stretches out the bearing frame and is connected with the; the drilling machine is characterized in that a track table is detachably connected to the bottom plate, slide rails are arranged on two sides of the track table, a slide seat is connected between the two slide rails in a sliding manner, limit blocks are further arranged on two sides of the track table, a transmission rack is arranged on the lower portion of the slide seat and meshed with a transmission gear, and a drilling assembly is arranged on the upper portion of the slide seat; the bottom plate is provided with a plurality of lifting bolts and is further connected with a housing through the lifting bolts. The utility model discloses the simple operation is convenient for remove, can be applied to different axle type work pieces in a flexible way.

Description

Portable center hole drilling device

Technical Field

The utility model relates to a machining equipment technical field especially relates to a just, move formula and bore centre bore device.

Background

At present, in the mechanical processing process of shaft workpieces, a center hole needs to be drilled on the end face of a part in advance as a processing reference, the method for drilling the center hole is diversified, equipment generally adopted in factories is a numerical control end face milling and center hole drilling machine tool, the workpiece needs to be hoisted to the rear of the machine tool for clamping and drilling, the operation process is complicated, workpieces with different diameters are troublesome to correct, and the machine tool has great limitation on scattered workpieces or longer workpieces.

In view of the above, there are some devices for drilling a center hole that can be flexibly applied, for example, patent publication No. CN 102398055a discloses a device for drilling a center hole, which has a scheme of transmitting torque of a motor to a spline shaft by belt transmission, rotating the spline shaft at a high speed, moving a handle to horizontally feed the spline shaft, and performing a center hole drilling operation through a center drill at one end of the spline shaft. Therefore, the movable center hole drilling device is provided, is not limited to a traditional machine tool, and can be flexibly applied to center hole drilling operation of different workpieces.

Disclosure of Invention

The utility model discloses a solve the problem that traditional lathe can't use different work pieces to bore the centre bore in a flexible way, provide a just move formula and bore centre bore device, realized the nimble application to different work pieces bore the centre bore.

In order to achieve the above object, the utility model adopts the following technical scheme:

a portable center hole drilling device comprises a base, wherein the base comprises a vertical plate and a bottom plate which are fixedly connected, the cross section of the vertical plate and the bottom plate is in a 'split' shape after being connected, a guide hole is formed in the vertical plate, a chuck is arranged on one side of the vertical plate, the chuck corresponds to the position of the guide hole, bearing blocks are detachably connected to two sides of the bottom plate, a transmission shaft is rotatably connected between the two bearing blocks, a transmission gear is arranged in the middle of the transmission shaft, and one end of the transmission shaft extends out of the bearing blocks and is;

the drilling machine is characterized in that a track table is detachably connected to the bottom plate, the cross section of the track table is in a shape like a Chinese character 'hui', the track table and the bottom plate are distributed at intervals up and down, the track table is positioned above the transmission shaft, slide rails are arranged on two sides of the track table, a slide seat is connected between the two slide rails in a sliding manner, limit blocks used for limiting the slide seat to move are further arranged on two sides of the track table, a transmission rack is arranged on the lower portion of the slide seat and meshed with a transmission gear, a drilling assembly is arranged on the upper portion of the slide;

the drilling machine is characterized in that a plurality of lifting bolts for lifting and moving are arranged on the bottom plate, the bottom plate is further connected with a housing through the lifting bolts, and the housing is located above the drilling assembly.

Further, the chuck is one of a manual chuck or a pneumatic chuck, and the chuck is connected with the vertical plate through a bolt; the bearing seat is connected with the bottom plate through bolts, and the transmission gear is connected with the transmission shaft key.

Furthermore, the bottom plate is connected with the track platform through a plurality of supporting sleeves, the supporting sleeves are located at corners of the track platform, and the track platform is connected with the bottom plate through screws.

Furthermore, the screws sequentially penetrate through the track table and the support sleeve to be in threaded connection with the bottom plate; the track table is in contact with the vertical plate, and the track table is connected with the vertical plate through fastening bolts.

Furthermore, the upper part of the transmission gear penetrates through the track table and is arranged above the track table, and the transmission rack is connected with the sliding seat through a cylindrical pin.

Furthermore, the drilling assembly comprises a spindle motor, a drill chuck and a central drill, wherein the drill chuck is arranged on an output shaft of the spindle motor and corresponds to the guide hole, the diameter of the drill chuck is smaller than that of the guide hole, and the central drill is clamped in the drill chuck.

Furthermore, a plurality of clamping blocks which are distributed in a triangular shape are arranged on the bottom plate, the housing is clamped with the clamping blocks, and two sides of the housing are also connected with the bottom plate through the lifting eye bolts; the handle is connected with the transmission shaft through a pin shaft and is arranged on the outer side of the housing.

Through the technical scheme, the beneficial effects of the utility model are that:

the utility model has reasonable structure design, can hoist and move the device through the arranged eyebolt without moving the workpiece, and has flexible use; the arranged chuck adopts a three-jaw pneumatic chuck, so that the center positioning is accurate, the clamping is powerful, and the operation is convenient; the device adopts a mode that the transmission gear is meshed with the transmission rack, has compact structure and accurate transmission, can directly drill a central hole on a workpiece by moving the spindle motor and matching with the center drill, has reliable work, avoids adopting belt transmission, ensures the transmission of motor torque and reduces power loss.

The utility model discloses the stopper that sets up in the track platform both sides guarantees on the one hand that the slide slides on the slide rail all the time, and on the other hand guarantees that drive gear meshes with the driving rack all the time, also can guarantee simultaneously that the motor can not collide riser or housing; all can dismantle the connection between each part that sets up, the installation of being convenient for is dismantled, and under the condition that face scattered work piece or longer work piece, the unable adaptation of traditional lathe, this device can nimble convenient application, and the high-efficient reliable operation of boring the centre bore simultaneously, device whole easy operation has improved the application scope of work piece, has good practicality.

Drawings

Fig. 1 is a schematic view of the overall structure of a portable device for drilling a center hole of the present invention.

Fig. 2 is a schematic view of a state of detaching the bottom plate and the housing of the portable device for drilling a center hole of the present invention.

Fig. 3 is a top view of the drilling assembly of the portable central hole drilling device of the present invention.

Fig. 4 is a sectional view taken along the direction a-a in fig. 3 of a portable device for drilling a center hole according to the present invention.

Fig. 5 is a sectional view taken along the direction B-B in fig. 3 of the portable device for drilling a center hole according to the present invention.

The reference numbers in the drawings are as follows: the drilling tool comprises a vertical plate 1, a bottom plate 2, a guide hole 3, a chuck 4, a bearing seat 5, a transmission shaft 6, a transmission gear 7, a handle 8, a track table 9, a sliding rail 10, a sliding seat 11, a limiting block 12, a transmission rack 13, a spindle motor 141, a drill chuck 142, a central drill 143, an eyebolt 15, a housing 16, a support sleeve 17, a screw 18, a fastening bolt 19 and a clamping block 20.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings:

as shown in fig. 1 to 5, the portable center hole drilling device comprises a base, wherein the base comprises a vertical plate 1 and a bottom plate 2 which are fixedly connected, the cross section of the vertical plate 1 and the bottom plate 2 is in a zigzag shape after being connected, a guide hole 3 is formed in the vertical plate 1, a chuck 4 is arranged on one side of the vertical plate 1, the chuck 4 corresponds to the guide hole 3, bearing blocks 5 are detachably connected to two sides of the bottom plate 2, a transmission shaft 6 is rotatably connected between the two bearing blocks 5, a transmission gear 7 is arranged in the middle of the transmission shaft 6, and one end of the transmission shaft 6 extends out of the bearing blocks 5 and is connected with a handle 8;

the base plate 2 is detachably connected with a track table 9, the cross section of the track table 9 is in a shape like a Chinese character 'hui', the track table 9 and the base plate 2 are distributed at intervals up and down, the track table 9 is positioned above the transmission shaft 6, the upper part of the transmission gear 7 penetrates through the track table 9 and is arranged above the track table 9, the track table 9 is in contact with the vertical plate 1, slide rails 10 are arranged on two sides of the track table 9, a slide seat 11 is connected between the two slide rails 10 in a sliding manner, limiting blocks 12 used for limiting the slide seat 11 to move are further arranged on two sides of the track table 9, and the limiting blocks 12 are in bolt connection;

the drill chuck is characterized in that a transmission rack 13 is arranged at the lower part of the sliding seat 11, the transmission rack 13 is meshed with the transmission gear 7, a drilling assembly is arranged at the upper part of the sliding seat 11 and corresponds to the position of the guide hole 3, the drilling assembly comprises a spindle motor 141, a drill chuck 142 and a central drill 143, the drill chuck 142 is arranged on an output shaft of the spindle motor 141 and corresponds to the position of the guide hole 3, the diameter of the drill chuck 142 is smaller than that of the guide hole 3, the central drill 143 is clamped in the drill chuck 142, the drill chuck 142 plays a role of clamping the central drill 143, a slight gap is kept between the drill chuck 142 and the guide hole 3, and scrap iron generated during operation can be prevented from entering the housing 16.

The bottom plate 2 is provided with a plurality of lifting bolts 15 for lifting and moving, the bottom plate 2 is further connected with a housing 16 through the lifting bolts 15, and the housing 16 is located above the drilling assembly.

In the embodiment, the chuck 4 is a vertical hollow three-jaw pneumatic chuck, the chuck 4 is connected with the vertical plate 1 through bolts, and the three-jaw pneumatic chuck is convenient to mount, rapid to clamp, large in clamping force and capable of reliably clamping a workpiece; the bearing seat 5 is connected with the bottom plate 2 through bolts, and the transmission gear 7 is connected with the transmission shaft 6 through keys.

In this embodiment, the bottom plate 2 is connected to the track table 9 through a plurality of support sleeves 17, the plurality of support sleeves 17 are located at corners of the track table 9, the track table 9 and the bottom plate 2 are further connected through screws 18, and specifically, the screws 18 sequentially penetrate through the track table 9 and the support sleeves 17 to be in threaded connection with the bottom plate 2; the transmission rack 13 is connected with the sliding seat 11 through a cylindrical pin.

In this embodiment, a plurality of clamping blocks 20 distributed in a triangular shape are arranged on the bottom plate 2, the housing 16 is clamped with the clamping blocks 20, two sides of the housing 16 are further connected with the bottom plate 2 through the eyebolts 15, and the position of the housing 16 can be fixed by the limitation of the clamping blocks 20; the handle 8 is connected with the transmission shaft 6 through a pin shaft, and the handle 8 is arranged on the outer side of the housing 16.

In order to strengthen the connection strength and reliability of the vertical plate 1 and the bottom plate 2, the rail table 9 and the vertical plate 1 are connected through a fastening bolt 19, and the stability of the vertical plate 1 is effectively improved through the connection of the vertical plate 1 and the rail table 9.

In this embodiment, the spindle motor 141 is a vibration brand TDK93 × 82-2.2 type desktop motor, and a 220V power supply is connected when in use.

In an initial state, the cover shell 16 is clamped with the clamping block 20, the cover shell 16 is limited by the clamping block 20, and two sides of the cover shell 16 are connected with the bottom plate 2 through the lifting eye bolts 15, so that the position of the cover shell 16 can be fixed, and the cover shell 16 is prevented from deviating when the device moves; the chuck 4 is communicated with an air source through an air pipe, and the air source provides clamping power for the chuck 4.

When a center hole needs to be drilled in a workpiece, the device can be moved to the position of the workpiece through the lifting eye bolt 15, so that the workpiece is clamped by the chuck 4 after the chuck 4 is aligned with the workpiece, and the workpiece is clamped; then the spindle motor 141 is started, then the central drill 143 rotates at a high speed, the handle 8 is manually moved to one side of the workpiece, then the transmission gear 7 rotates, the transmission rack 13 moves to one side of the workpiece, then the central drill 143 continuously approaches the workpiece and finally drills into the workpiece, the generated scrap iron is blocked outside the housing 16 by the drill chuck 142, the handle 8 is reversely moved after pressure maintaining for a certain time to enable one end of the central drill 143 to be separated from the workpiece, and therefore the operation of drilling a central hole is completed, and the whole operation is convenient and fast.

Meanwhile, the device can also be used for drilling a center hole in a shaft part with a machined surface, if a piston rod in a side-push oil cylinder is machined, the piston rod which is internally communicated with liquid is adopted, the center hole is taken as a symmetric center, deep holes are required to be drilled on two sides of the piston rod to form a flow channel for the liquid to pass through, then the deep holes on one side are required to be welded and blocked to form upper cavity and lower cavity communicated liquid, the deep holes are arranged closer to the center hole, the center hole is often influenced when the deep holes are welded and blocked, the surface of the shaft part is required to be ground in subsequent procedures, the welded center hole cannot play a positioning role, the surface can be damaged when the center hole is drilled through a machine tool for positioning, and the device can greatly reduce the influence on the surface of.

Thereby personnel can manually move handle 8 and control drilling dynamics and drilling and feed, and the flexible operation, when moving handle 8, slide 11 reciprocating motion, slide 11 receives the restriction of both sides stopper 12, can guarantee on the one hand that slide 11 slides on slide rail 10 all the time, prevents that slide 11 from droing, and on the other hand guarantees that drive gear 7 and driving rack 13 remain the engaged state all the time, prevents both separation, can guarantee simultaneously that spindle motor 141 can not collide riser 1 or clamshell 16.

When the center drill 143 with different specifications needs to be replaced or the device needs to be overhauled and maintained, the lifting eye bolts 15 on the two sides of the housing 16 can be unscrewed to separate the lifting eye bolts 15 from the bottom plate 2, and then the housing 16 is separated from the fixture block 20, so that the center drill 143 can be replaced or overhauled and maintained; the device can efficiently and reliably drill the center hole of the workpiece, and improves the flexibility and convenience of use.

The above-mentioned embodiments are merely preferred embodiments of the present invention, and not intended to limit the scope of the present invention, so that equivalent changes or modifications made by the structure, features and principles of the present invention should be included in the claims of the present invention.

Claims

1. The portable center hole drilling device comprises a base and is characterized in that the base comprises a vertical plate (1) and a bottom plate (2) which are fixedly connected, the cross section of the vertical plate (1) and the bottom plate (2) is in a cross-ply shape after being connected, a guide hole (3) is formed in the vertical plate (1), a chuck (4) is arranged on one side of the vertical plate (1), the chuck (4) corresponds to the guide hole (3), bearing seats (5) are detachably connected to two sides of the bottom plate (2), a transmission shaft (6) is rotatably connected between the two bearing seats (5), a transmission gear (7) is arranged in the middle of the transmission shaft (6), and one end of the transmission shaft (6) extends out of the bearing seat (5) and is connected with a handle (8;

the track table (9) is detachably connected to the bottom plate (2), the cross section of the track table (9) is in a shape like a Chinese character 'hui', the track table (9) and the bottom plate (2) are distributed at intervals from top to bottom, the track table (9) is positioned above the transmission shaft (6), sliding rails (10) are arranged on two sides of the track table (9), a sliding seat (11) is connected between the two sliding rails (10) in a sliding mode, limiting blocks (12) used for limiting the sliding seat (11) to move are further arranged on two sides of the track table (9), a transmission rack (13) is arranged on the lower portion of the sliding seat (11), the transmission rack (13) is meshed with the transmission gear (7), a drilling assembly is arranged on the upper portion of the sliding seat (11), and the drilling assembly corresponds to;

the drilling machine is characterized in that a plurality of lifting bolts (15) used for lifting and moving are arranged on the bottom plate (2), the bottom plate (2) is further connected with a housing (16) through the lifting bolts (15), and the housing (16) is located above the drilling assembly.

2. The portable center hole drilling device according to claim 1, wherein the chuck (4) is one of a manual chuck or a pneumatic chuck, and the chuck (4) is connected with the vertical plate (1) through bolts; the bearing seat (5) is connected with the bottom plate (2) through bolts, and the transmission gear (7) is connected with the transmission shaft (6) through keys.

3. A portable centre hole drilling device according to claim 1, wherein the base plate (2) is connected to the track table (9) by a plurality of support sleeves (17), the plurality of support sleeves (17) are located at the corners of the track table (9), and the track table (9) and the base plate (2) are further connected by screws (18).

4. A portable central hole drilling device according to claim 3, characterized in that the screw (18) is connected with the bottom plate (2) by threading through the track platform (9) and the supporting sleeve (17) in sequence; the track platform (9) is in contact with the vertical plate (1), and the track platform (9) is connected with the vertical plate (1) through a fastening bolt (19).

5. The portable hole drilling device according to claim 1, wherein the upper part of the transmission gear (7) passes through the track table (9) and is arranged above the track table (9), and the transmission rack (13) is connected with the sliding seat (11) through a cylindrical pin.

6. The portable central hole drilling device as claimed in claim 5, wherein the drilling assembly comprises a spindle motor (141), a drill chuck (142) and a central drill (143), the drill chuck (142) is arranged on an output shaft of the spindle motor (141), the drill chuck (142) corresponds to the position of the guide hole (3), the diameter of the drill chuck (142) is smaller than that of the guide hole (3), and the central drill (143) is clamped in the drill chuck (142).

7. The portable center hole drilling device as claimed in claim 1, wherein a plurality of clamping blocks (20) distributed in a triangular shape are arranged on the bottom plate (2), the housing (16) is clamped with the clamping blocks (20), and two sides of the housing (16) are further connected with the bottom plate (2) through the eyebolts (15); the handle (8) is connected with the transmission shaft (6) through a pin shaft, and the handle (8) is arranged on the outer side of the housing (16).