CN111590115A

CN111590115A - Drilling device

Info

Publication number: CN111590115A
Application number: CN202010410218.XA
Authority: CN
Inventors: 王平; 夏咪咪; 史鹏飞; 孙连福; 汤敏; 李晶晶; 桂方亮; 李杭
Original assignee: Anhui Jianghuai Automobile Group Corp
Current assignee: Anhui Jianghuai Automobile Group Corp
Priority date: 2020-05-14
Filing date: 2020-05-14
Publication date: 2020-08-28
Anticipated expiration: 2040-05-14
Also published as: CN111590115B

Abstract

The invention discloses a drilling device, and relates to the technical field of drilling equipment. The drilling device includes: a frame; the drill bit is arranged on the rack and provided with a working end and a connecting end which are opposite, the direction from the connecting end to the working end is a first direction, and the drill bit has a movable stroke which rotates around the first direction and moves back and forth along the first direction; and the driving device is arranged on the rack, is connected with the drill bit and is used for driving the drill bit to rotate around the first direction and move back and forth along the first direction. The drilling device disclosed by the invention is simple in structure, can automatically withdraw from the hole after drilling is finished, is high in automation degree and saves manpower.

Description

Drilling device

Technical Field

The invention relates to the technical field of drilling equipment, in particular to a drilling device.

Background

Drilling is a common mode of machining, and currently, drilling mainly comprises three types of equipment, namely a bench drill or a rocker drill, a CNC (numerical control machine tool) and an electric hand drill. When the rocker drill and the bench drill are used, a worker always needs to stand two hands for operation, one hand holds a workpiece to be machined, the other hand shakes the drill bit downwards, and the workload of the worker is large. CNC's expense is higher, needs compressed air, needs row to cut the system, and it is inconvenient to remove. In addition, after the drilling equipment drills the workpiece, the hole needs to be moved manually, the workpiece cannot be withdrawn automatically, and the automation degree is not high enough.

Disclosure of Invention

The invention mainly aims to provide a drilling device, and aims to provide a drilling device which is simple in structure and high in automation degree.

To achieve the above object, the present invention provides a drilling apparatus, comprising:

a frame;

the drill bit is arranged on the rack and provided with a working end and a connecting end which are opposite, the direction from the connecting end to the working end is a first direction, and the drill bit has a movable stroke which rotates around the first direction and moves back and forth along the first direction; and the number of the first and second groups,

and the driving device is arranged on the rack, is connected with the drill bit and is used for driving the drill bit to rotate around the first direction and move back and forth along the first direction.

Optionally, the drive device comprises:

the motor is provided with an output shaft which is connected with the drill bit so as to drive the drill bit to rotate around the first direction;

and the transmission structure is connected with the motor and the drill bit so that the motor drives the drill bit to move back and forth along the first direction.

Optionally, the transmission structure comprises:

the speed reducer is provided with an input end and an output end, and the input end is connected with an output shaft of the motor;

the sleeve is provided with an opening at one end, the opening end of the sleeve is movably sleeved at the connecting end of the drill bit, and the closed end of the sleeve is connected with the output shaft of the motor; and the number of the first and second groups,

straight line reciprocating mechanism, including drive wheel, connecting axle and reciprocating lever, the drive wheel cover is located the output just be equipped with the eccentric orfice on the drive wheel, the first end of reciprocating lever is equipped with the connecting hole, the second end with the drill bit is connected, the connecting axle is worn to locate the eccentric orfice with the connecting hole, in order to connect the drive wheel with the first end of reciprocating lever, the reciprocating lever is followed the drive wheel rotates, so that the drill bit is kept away from relatively or is close to the sleeve, and have and keep away from the position and be close to the position.

Optionally, the drilling device further includes a positioning portion and a fitting portion respectively disposed at the drill bit connecting end and the sleeve opening end, and the positioning portion and the fitting portion are in positioning fit to limit relative rotation of the drill bit and the sleeve.

Optionally, the positioning portion includes a positioning protrusion, and the fitting portion includes a positioning groove.

Optionally, the eccentric holes are provided in plurality, the eccentric holes are arranged on the driving wheel at intervals along the circumferential direction of the driving wheel, and in the circumferential direction, the distances between the eccentric holes and the center of the driving wheel are arranged in an increasing manner.

Optionally, the connection hole is an elongated hole extending in a length direction of the reciprocating rod.

Optionally, the retarder is a two-stage retarder.

Optionally, the drilling device further includes a position switch, the position switch is disposed on the frame and located at a rear side of the driving wheel in the first direction, and when the drill bit is located at the approaching position, the first end of the reciprocating rod abuts against the position switch to control the motor to stop working.

Optionally, drilling equipment still includes kickboard and at least one balancing pole, the kickboard cover is located the link of drill bit and with the reciprocating lever is connected, the balancing pole is followed the first direction extends the setting, balancing pole one end with frame swing joint, the other end with the kickboard is connected.

According to the technical scheme, the drilling device comprises a rack, a drill bit and a driving device, wherein the drill bit has a movable stroke of rotating around a first direction and moving back and forth along the first direction, the driving device can drive the drill bit to rotate around the first direction at a high speed and move towards a workpiece along the first direction so as to drill the workpiece, and after the workpiece is drilled, the driving device drives the drill bit to be far away from the workpiece along the first direction so as to withdraw from a hole of the workpiece. The drilling device disclosed by the invention is simple in structure, can automatically withdraw from the hole after drilling is finished, is high in automation degree and saves manpower.

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 the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic perspective view of an embodiment of a drilling apparatus provided in the present invention;

FIG. 2 is a front view of FIG. 1;

FIG. 3 is a top view of FIG. 1;

fig. 4 is a sectional view taken along a-a in fig. 1.

The reference numbers illustrate:

100	drilling device	323	Linear reciprocating mechanism
				1	Rack	3231	Driving wheel
2	Drill bit	3231a	Eccentric hole
				21	Working end	3232	Connecting shaft
22	Connecting end	3233	Reciprocating lever
				3	Drive device	3233a	Connecting hole
31	Electric machine	4	Positioning part
				32	Transmission structure	5	Mating part
321	Speed reducer	6	Position switch
				3211	Input terminal	7	Push plate
3212	Output end	8	Balancing pole
				322	Sleeve barrel	9	Bearing fixing plate
3221	Open end	10	Clutch device
				3222	Closed end

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front, rear, outer and inner … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Drilling is a common mode of machining, and currently, drilling mainly comprises three types of equipment, namely a bench drill or a rocker drill, a CNC (numerical control machine tool) and an electric hand drill. When the rocker drill and the bench drill are used, workers always need to stand and need to work with two hands. One hand holds the workpiece to be processed, and the other hand shakes the drill bit downwards, so that the workload of workers is large. CNC's expense is higher, needs compressed air, needs row to cut the system, and it is inconvenient to remove. In addition, after the drilling equipment drills the workpiece, the hole needs to be moved manually, the workpiece cannot be withdrawn automatically, and the automation degree is not high enough.

In view of this, the present invention provides a drilling apparatus, and aims to provide a drilling apparatus with a simple structure and a high degree of automation. Fig. 1 is a schematic perspective view of an embodiment of a drilling apparatus provided in the present invention; FIG. 2 is a front view of FIG. 1; FIG. 3 is a top view of FIG. 1; fig. 4 is a sectional view taken along a-a in fig. 1.

Referring to fig. 1, a drilling apparatus 100 according to the present invention includes a frame 1, a drill 2 and a driving device 3, wherein the drill 2 is disposed on the frame 1, the drill 2 has a working end 21 and a connecting end 22 opposite to each other, a direction from the connecting end 22 to the working end 21 is a first direction, and the drill 2 has a movable stroke rotating around the first direction and moving back and forth along the first direction; the driving device 3 is disposed on the frame 1 and connected to the drill 2 for driving the drill 2 to rotate around the first direction and move back and forth along the first direction.

Referring to fig. 2, an arrow direction in fig. 2 is a direction in which the drill 2 moves towards the workpiece, the drilling device 100 includes a frame 1, the drill 2, and a driving device 3, the drill 2 has a moving stroke that rotates around the first direction and moves back and forth along the first direction, the driving device 3 can drive the drill 2 to rotate at a high speed around the first direction and move towards the workpiece along the first direction at the same time, so as to drill the workpiece, and after the workpiece is drilled, the driving device 3 drives the drill 2 to move away from the workpiece along the first direction, so as to withdraw from the hole of the workpiece. The drilling device 100 disclosed by the invention is simple in structure, can automatically withdraw from a hole after drilling is finished, is high in automation degree and saves manpower.

As to how the driving device 3 drives the drill bit 2 to rotate at a high speed and move forward or backward towards the workpiece, the present invention is not limited, and preferably, referring to fig. 1 to 3, the driving device 3 includes a motor 31 and a transmission structure 32, wherein the motor 31 has an output shaft, and the output shaft is connected to the drill bit 2 to drive the drill bit 2 to rotate around a first direction; the transmission structure 32 connects the motor 31 and the drilling head 2, so that the motor 31 drives the drilling head 2 to move back and forth along the first direction. By providing a motor 31 and a transmission structure 32, on the one hand energy is saved and cost is reduced, and on the other hand the structure of the drilling device 100 is simplified and weight is reduced, thereby reducing the burden on the workers.

Specifically, referring to fig. 1 to 3, the transmission structure 32 includes a reducer 321, a sleeve 322 with an opening at one end, and a linear reciprocating mechanism 323, wherein the reducer 321 has an input end 3211 and an output end 3212, and the input end 3211 is connected to an output shaft of the motor 31; the open end 3221 of the sleeve 322 is movably sleeved on the connecting end 22 of the drill bit 2, and the closed end 3222 of the sleeve 322 is connected with the output shaft of the motor 31; the linear reciprocating mechanism 323 comprises a driving wheel 3231, a connecting shaft 3232 and a reciprocating rod 3233, the driving wheel 3231 is sleeved on the output end 3212, an eccentric hole 3231a is formed in the driving wheel 3231, a connecting hole 3233a is formed in a first end of the reciprocating rod 3233, a second end of the reciprocating rod 3233 is connected with the drill bit 2, the connecting shaft 3232 penetrates through the eccentric hole 3231a and the connecting hole 3233a to connect the driving wheel 3231 and the first end of the reciprocating rod 3233, and the reciprocating rod 3233 rotates along with the driving wheel 3231 to enable the drill bit 2 to be relatively far away from or close to the sleeve 322 and have a far position and a close position.

The drilling apparatus 100 operates as follows: the drill bit 2 and the motor 31 are connected through the sleeve 322, so that the drill bit 2 rotates around the first direction at a high speed; in addition, the reducer 321 and the driving wheel 3231 are provided, and due to the connection of the eccentric hole 3231a on the driving wheel 3231, the connection hole 3233a on the reciprocating rod 3233 and the connection shaft 3232, the force of the output shaft of the rotating motor 31 is transmitted to the reciprocating rod 3233, so that the reciprocating rod 3233 reciprocates along a first direction, and further the drill 2 is pushed to be relatively far away from or close to the sleeve 322 to have a far position and a close position, namely, the drill 2 punches a hole on a workpiece at the far position, and the drill 2 exits the hole of the workpiece at the close position.

In order to prevent the drill bit 2 and the sleeve 322 from rotating relatively to each other and affecting drilling when the drilling device 100 drills a hole, referring to fig. 4, the drilling device 100 further includes a positioning portion 4 and a matching portion 5 respectively disposed at the connecting end 22 of the drill bit 2 and the open end 3221 of the sleeve 322, and the positioning portion 4 and the matching portion 5 are in positioning fit to limit the drill bit 2 and the sleeve 322 from rotating relatively.

The positioning and matching manner of the positioning portion 4 and the matching portion 5 is not limited in the present invention, and preferably, the positioning portion 4 includes a positioning protrusion, and the matching portion 5 includes a positioning groove. Specifically, referring to fig. 4, the positioning protrusion may be a sliding key disposed at the connecting end 22 of the drill bit 2, and the positioning groove is a groove disposed on an inner side wall of the opening of the sleeve 322, so that the structure is simple and the stability is high.

In order to realize that the drilling apparatus 100 drills holes with different depths, referring to fig. 2, a plurality of eccentric holes 3231a are provided, the plurality of eccentric holes 3231a are spaced on a driving wheel 3231 in a circumferential direction of the driving wheel 3231, and distances between the plurality of eccentric holes 3231a and a center of the driving wheel 3231 are gradually increased in the circumferential direction. The further the eccentric bore 3231a is from the center of the drive wheel 3231, the more the drive wheel 3231 can drive the reciprocating rod 3233 towards the workpiece and thus drill deeper holes, which increases the adaptability of the drilling apparatus 100 to different workpieces.

The circumferential direction of the driving wheel 3231 according to the present invention is a circumference of a circle formed with a center of the driving wheel 3231 and a radius smaller than the radius of the driving wheel 3231.

Further, since the eccentric holes 3231a are spaced apart from the driving wheel 3231, the depth of the holes drilled by the drilling device 100 is inevitably discontinuous, for example, when two adjacent holes are connected to the reciprocating rod 3233, the drilling depth is 3mm and 5mm, respectively, if a hole with a depth of 3.5mm is to be drilled, it cannot be achieved, and in order to overcome the above-mentioned defect, in the embodiment of the present invention, referring to fig. 2, the connecting hole 3233a is a long hole extending along the length direction of the reciprocating rod 3233. When the drilling tool is used specifically, if a hole with the depth of 3.5mm needs to be drilled, the hole corresponding to the 3mm can be selected firstly, and then the specific position of the connecting shaft 3232 in the elongated hole is adjusted, so that the hole with the depth of 3.5mm can be drilled, and the drilling tool is simple in structure and high in flexibility.

The invention is not limited to the specific form of the reducer 321, and when the hole depth is small, the reducer 321 may be a first-stage reducer, such as a worm reducer; when the hole depth is large, the reducer 321 is a two-stage reducer. More preferably, the secondary reducer 321 is a planetary reducer and a worm reducer in series.

Preferably, referring to fig. 3, the drilling device 100 further includes a position switch 6, the position switch 6 is disposed on the frame 1 and located at the rear side of the driving wheel 3231 in the first direction, and when the drill 2 is at the approaching position, the first end of the reciprocating rod 3233 abuts against the position switch 6 to control the motor 31 to stop working. So, drilling equipment 100 can be after drilling is accomplished self-closing motor 31, makes drilling equipment 100 stop work, the material resources of using manpower sparingly.

In order to increase the stability of the drilling apparatus 100, in the embodiment of the present invention, referring to fig. 3, the drilling apparatus 100 further includes a pushing plate 7 and at least one balance bar 8, the pushing plate 7 is sleeved on the connecting end 22 of the drill bit 2 and connected to the reciprocating bar 3233, the balance bar 8 extends along a first direction, one end of the balance bar 8 is movably connected to the frame 1, and the other end of the balance bar 8 is connected to the pushing plate 7. Through the arrangement of the pushing plate 7 and the balance rod 8, the linear reciprocating mechanism 323 can be more stable when pushing the drill bit 2 to reciprocate, and the stability of the system is improved.

Further, referring to fig. 1 to 4, the drilling device 100 further includes a clutch 10, the clutch 10 is disposed between the output shaft of the motor 31 and the speed reducer 321, so that the output shaft of the motor 31 is respectively connected to or disconnected from the speed reducer 321 and the sleeve 322, thereby increasing the safety of the system.

Referring to fig. 1 to 4, the drilling apparatus 100 further includes at least one bearing fixing plate 9 spaced apart from the frame 1, and the bearing fixing plate 9 is connected to the sleeve 322 through a bearing to support the sleeve 322 and make the rotation of the sleeve 322 more stable.

During drilling, the working process of the drilling device 100 is as follows:

1. the position of the processing tool and the position of the drill bit 2 are adjusted, the power supply is turned on, and the motor 31 works (at the moment, the clutch 10 does not work, the drill bit 2 does not rotate, and the drill bit does not move forwards or backwards);

2. when a workpiece to be machined is placed at a proper position, a machining switch is started, the clutch 10 is started, the drill bit 2 rotates, the speed reducer 321 rotates at the same time, and the reciprocating rod 3233 drives the drill bit 2 to advance;

3. starting drilling operation;

4. when the drill bit is drilled to a specified depth, the drill bit 2 continues to rotate and retreats at the same time;

5. the reciprocating rod 3233 retreats to the limit position, the position switch 6 is triggered, the self-protection circuit is broken, and the clutch 10 is powered off;

6. after the power is cut off, the drill bit 2 stops rotating, the speed reducer 321 stops working, the reciprocating rod 3233 stops working, and the drill bit 2 stops moving;

7. the power supply is cut off and all the devices are stopped.

In addition, the drilling equipment of the embodiment of the invention can also work in a networking mode, and the motor 31 and the clutch 10 of the drilling device 100 can be automatically controlled to work through the arrangement of the controller, so that automatic drilling is realized.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A drilling apparatus, comprising:

a frame;

2. The drilling apparatus of claim 1, wherein the drive means comprises:

3. The drilling apparatus of claim 2, wherein the transmission structure comprises:

4. A drill assembly according to claim 3 further comprising locating and engaging portions respectively provided at the bit attachment end and the sleeve open end, the locating and engaging portions being located to engage to restrict relative rotation of the bit and the sleeve.

5. The drilling apparatus of claim 4, wherein the locating portion comprises a locating projection and the mating portion comprises a locating recess.

6. The drilling apparatus as claimed in claim 3, wherein the eccentric hole is provided in plural, the plural eccentric holes are arranged at intervals in a circumferential direction of the driving wheel on the driving wheel, and a distance between the plural eccentric holes and a center of the driving wheel in the circumferential direction is set incrementally.

7. A drilling apparatus according to claim 3, wherein the connection hole is an elongate hole extending in the length direction of the reciprocating rod.

8. A drilling apparatus according to claim 3, wherein the reducer is a two-stage reducer.

9. The drilling apparatus of claim 3, further comprising a position switch disposed on the frame and located rearward of the drive wheel in the first direction, wherein the first end of the reciprocating lever abuts the position switch when the drill bit is in the approaching position to control the motor to stop operating.

10. The drilling apparatus as claimed in claim 3, wherein the drilling apparatus further comprises a pushing plate and at least one balance bar, the pushing plate is sleeved on the connecting end of the drill bit and connected with the reciprocating bar, the balance bar extends along the first direction, one end of the balance bar is movably connected with the frame, and the other end of the balance bar is connected with the pushing plate.