CN112475346A

CN112475346A - Automatic drilling device

Info

Publication number: CN112475346A
Application number: CN202011283830.1A
Authority: CN
Inventors: 王亮; 戴蓉蓉; 王晓霞
Original assignee: Chengdu Aeronautic Polytechnic
Current assignee: Chengdu Aeronautic Polytechnic
Priority date: 2020-11-17
Filing date: 2020-11-17
Publication date: 2021-03-12

Abstract

The invention discloses an automatic drilling device, which relates to the technical field of processing devices and comprises the following components: the drilling device comprises a feeding chute, a drilling assembly arranged above a discharge end close to the feeding chute and a material blocking assembly arranged at the discharge end of the feeding chute; the feeding end of the feeding groove is higher than the discharging end of the feeding groove; the drilling assembly includes: the device comprises a supporting plate and a drill rod arranged on the supporting plate, wherein the axis of the drill rod is perpendicular to a corresponding feed chute, a pressing plate is arranged at one end of the supporting plate close to a material blocking assembly, the pressing plate is connected with the material blocking assembly, and a positioning block is arranged at one surface of the supporting plate close to the feed chute; keep off material subassembly includes: the automatic drilling device is particularly suitable for punching of workpieces with cylindrical outer surfaces, simple in structure, free of complex control systems, and capable of achieving efficient and automatic punching of the outer surfaces of the arc-shaped workpieces through linked mechanical structures.

Description

Automatic drilling device

Technical Field

The invention relates to the technical field of machining devices, in particular to an automatic drilling device.

Background

The side wall of a round workpiece is often required to be punched in production, for example, a shell of a dial indicator or a lamp shell and the like are required to be punched in an excircle, labor cost pressure of an enterprise is gradually increased along with increase of labor cost, production efficiency is very important to development of the enterprise, the existing device capable of automatically feeding and punching is complex in structure, automatic control and other systems need to be matched, investment cost of enterprise equipment is increased, and the equipment is complex in structure, easy to damage and inconvenient to maintain.

Disclosure of Invention

The invention aims to provide an automatic drilling device which is particularly suitable for drilling a workpiece with a cylindrical outer surface, has a simple structure, does not need a complex control system, and can realize efficient and automatic drilling on the outer surface of a circular workpiece through a linked mechanical structure.

The technical scheme for solving the technical problems is as follows:

an automatic drilling apparatus comprising: the drilling device comprises a feeding chute, a drilling assembly arranged above a discharge end close to the feeding chute and a material blocking assembly arranged at the discharge end of the feeding chute; the feeding end of the feeding groove is higher than the discharging end of the feeding groove; the drilling assembly includes: the device comprises a supporting plate and a drill rod arranged on the supporting plate, wherein the axis of the drill rod is perpendicular to the discharge end of a feed chute, a pressing plate is arranged at one end of the supporting plate close to a material blocking assembly, the pressing plate is connected with the material blocking assembly, and a positioning block is arranged at one surface of the supporting plate close to the feed chute; keep off material subassembly includes: the baffle and the reset spring arranged below the baffle form a space for accommodating an integral number of workpieces between the baffle and the positioning block.

The automatic drilling device is provided with a feeding groove, the feeding groove is used for placing a workpiece to be drilled, and a feeding hole of the feeding groove is higher than a discharging hole, so that the workpiece with the arc-shaped outer surface can continuously roll forwards by means of self gravity, and the purpose of automatic feeding is achieved; the feeding groove can be of a structure that the feeding groove is integrally arranged in an inclined mode, can also be formed by sequentially connecting a plurality of inclined sections with different inclination angles, and can also be of a structure that a straight section is connected with the inclined sections, so long as the workpiece can automatically roll from the feeding hole to the discharging hole; the drilling assembly is arranged at the outlet end close to the feed chute, the drilling assembly is arranged above the feed chute, and a drill rod in the drilling assembly is perpendicular to the bottom surface of the feed chute corresponding to the drill rod, so that a hole perpendicular to the outer wall of the workpiece can be drilled in the workpiece; the lower surface of the supporting plate is provided with a positioning block, and when the drill rod drills downwards, the positioning block can block the workpiece to prevent the workpiece from rolling forwards; the baffle plate component is arranged at the end part of the discharge hole of the feed chute, the baffle plate in the baffle plate component is arranged at the outlet of the feed chute and is higher than the bottom surface of the feed chute, so that the workpiece in the feed chute can be prevented from rolling forwards, the reset spring is arranged below the baffle plate, the pressing plate on the supporting plate is arranged on the baffle plate, when a drill rod drills downwards, the supporting plate and the pressing plate can be driven to move downwards simultaneously, the pressing plate presses the baffle plate downwards, the reset spring contracts, when the height of the baffle plate is lower than the height of the bottom surface of the feed chute, the workpiece is released and rolls forwards, after drilling is completed, the drill rod rises, the baffle plate rises, the positioning block releases the workpiece with a drilled hole to enter between the positioning block and the baffle plate, the latter workpiece rolls forwards under the action of gravity, through the steps, the drill rod descends to drill the workpiece, meanwhile, the workpiece with, the workpiece with the drilled hole moves forwards to a position between the baffle and the positioning block, the next workpiece to be drilled moves to the position below the drill rod, and drilling is continued, so that drilling, discharging and feeding are automatically completed.

Further, in a preferred embodiment of the present invention, the feeding chute comprises a bottom surface and side walls oppositely disposed at two sides of the bottom surface, and the distance between the two side walls is matched with the width of the workpiece.

The width of feed chute and the width phase-match of work piece play regular positioning action to the work piece, avoid a plurality of work pieces to remove side by side, guarantee that the drilling rod corresponds a work piece at every turn.

Further, in a preferred embodiment of the present invention, the feed chute comprises in sequence: the first silo of slope setting and the second silo of level setting, drilling subassembly and fender material subassembly all set up the one end of keeping away from first silo at the second silo.

The first trough is obliquely arranged, so that the workpiece can roll downwards under the action of gravity, the second trough is horizontally arranged, the workpiece is conveniently drilled, and the drill rod is vertically arranged at the moment.

Furthermore, in a preferred embodiment of the invention, an adjusting plate is arranged at an end of the drill rod far away from the support plate and parallel to the support plate at an interval, the adjusting plate is connected with the drill rod in a sliding manner, and a buffer spring is arranged between the adjusting plate and the support plate.

The lower extreme of drilling rod passes the backup pad for drill to the work piece, the upper end of drilling rod slides and sets up the regulating plate, set up buffer spring between regulating plate and the backup pad, during drilling, the regulating plate slides down for the drilling rod, and press simultaneously and establish buffer spring, buffer spring drives the backup pad and pushes down, the regulating plate drives the drilling rod and moves down simultaneously, thereby make the locating piece press from both sides tight work piece, drilling is accomplished to the drilling rod, it can prevent to cause too big and to the work piece extrusion deformation to set up buffer spring to the work piece effort.

Further, in a preferred embodiment of the present invention, a support rod is disposed between the adjusting plate and the support plate, one end of the support rod is disposed on the support plate, the other end of the support rod is slidably connected to the adjusting plate, and the buffer spring is sleeved on the support rod.

Bracing piece and drilling rod parallel arrangement, the regulating plate slides and sets up on the bracing piece, and the bracing piece can play support and guide effect to the regulating plate, and the quantity of bracing piece does not specifically limit, but for guaranteeing that the supporting action is balanced, the bracing piece should the symmetry set up the both sides at the drilling rod.

Further, in a preferred embodiment of the present invention, the positioning block includes a first V-shaped positioning block and a second V-shaped positioning block which are sequentially spaced apart from each other along the feeding direction, and a space formed between the first V-shaped positioning block and the second V-shaped positioning block can accommodate one workpiece.

The structure of V type locating piece and the interval structure phase-match that forms between the convex surface of two parts, the part of treating the drilling that can be fine plays the centre gripping fixed action, and the part can not remove when making the drilling.

Further, in the preferred embodiment of the present invention, a space for accommodating a workpiece is formed between the second V-shaped positioning block and the baffle.

A space capable of accommodating one workpiece is formed between the second V-shaped positioning block and the baffle plate, so that the time of the workpiece on the feeding chute is shortened, and the workpiece with a drilled hole can enter the next station as soon as possible.

Further, in a preferred embodiment of the present invention, the pressing plate includes a first leg and a second leg respectively disposed at both sides of the feed chute, upper ends of the first leg and the second leg are respectively disposed on the supporting plate, and lower ends of the first leg and the second leg are respectively disposed on the baffle plate.

The press plate is of a structure with two supporting legs, the distance between the two supporting legs is guaranteed to be larger than the width of a workpiece, the workpiece discharging is not affected, and the two supporting legs are symmetrically arranged, so that the balance can be kept when the baffle plate is pressed.

Further, in a preferred embodiment of the present invention, a baffle supporting plate is arranged below the baffle, a baffle supporting rod is arranged on the baffle supporting plate, the baffle is slidably arranged on the baffle supporting rod, the return spring is arranged between the baffle and the baffle supporting plate, and the return spring is sleeved on the baffle supporting rod.

The baffle bracing piece plays support and guide effect to the baffle, can follow the axis direction of baffle bracing piece when guaranteeing that the baffle is pushed down, and the quantity of baffle bracing piece does not do specific restriction, nevertheless for guaranteeing to support the guide effect steady, the baffle bracing piece should use the feed chute to set up on the baffle as central symmetry.

Further, in the preferred embodiment of the present invention, there are at least two baffle support rods, and the distance between the baffle support rods is not less than the width of the workpiece.

Because the baffle slides and sets up on archives bracing piece, then the upper end of baffle bracing piece will be higher than the surface of baffle, and the distance between the baffle bracing piece is greater than the width of work piece, can guarantee that the work piece can not blockked by the baffle bracing piece when moving forward.

The invention has the following beneficial effects:

the invention provides an automatic drilling device, which is suitable for drilling holes on a workpiece with a circular arc outer surface, the feeding chute in the device can lead the workpiece to automatically move from the feeding end to the discharging end by means of gravity, the workpiece is temporarily limited at a fixed position by the positioning block and the baffle plate, the drilling assembly and the material blocking assembly are in linkage action, the previous part which has finished drilling is released at the same time when the middle workpiece is finished drilling, when the middle workpiece is released after drilling, the next part to be drilled can be positioned, thereby completing the automatic drilling of the workpiece, the device need not too much increase outside power device and controlling means and can accomplish drilling process automatic feed, location and the ejection of compact, and device overall structure is simple, and is with low costs, for easy maintenance, drilling easy operation, drilling efficiency is high.

Drawings

FIG. 1 is a schematic view of the overall structure of an automatic drilling apparatus according to the present embodiment;

FIG. 2 is a schematic front view of the automatic drilling apparatus in this embodiment;

fig. 3 is a left side view schematically illustrating the automatic drilling apparatus according to the present embodiment.

Wherein: 1-a feed chute; 11-a first trough; 12-a second trough; 2-a drilling assembly; 21-a support plate; 22-a drill rod; 23-a platen; 231-a first leg; 232-a second leg; 24-a positioning block; 241-a first V-shaped positioning block; 242-second V-shaped locating block; 25-adjusting plate; 26-a buffer spring; 27-a support bar; 3-a material blocking component; 31-a baffle; 32-a return spring; 33-a baffle support plate; 34-a baffle support bar; 4-the workpiece.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.

Examples

Referring to fig. 1 to 3, an automatic drilling apparatus includes: the device comprises a feed chute 1, a drilling assembly 2 arranged above a discharge end close to the feed chute 1 and a material blocking assembly 3 arranged at the discharge end of the feed chute 1;

referring to fig. 1, the feeding chute 1 includes a bottom surface and side walls oppositely disposed on two sides of the bottom surface, that is, the longitudinal section of the feeding chute 1 is a "U" shaped structure, the distance between the two side walls is matched with the width of the workpiece 4, so that the workpieces 4 are arranged in the feeding chute 1 in a single row, and the feeding chute 1 sequentially includes: first silo 11 and the second silo 12 of level setting that the slope set up, first silo 11 from the top down the slope set up, and second silo 12 sets up the lower extreme at first silo 11, and the feed end of feed chute 1 is higher than the discharge end of feed chute 1 promptly, and drilling subassembly 2 and fender material subassembly 3 all set up the one end of keeping away from first silo 11 at second silo 12.

Referring to fig. 1-3, the drilling assembly 2 includes: the device comprises a support plate 21 and a drill rod 22 arranged on the support plate 21, wherein the axis of the drill rod 22 is perpendicular to the corresponding feed chute 1, the drill rod 22 is vertically arranged due to the horizontal arrangement of the second trough 12, and a positioning block 24 is arranged on one surface of the support plate 21 close to the feed chute 1; the positioning block 24 includes a first V-shaped positioning block 241 and a second V-shaped positioning block 242 which are sequentially arranged along the feeding direction at intervals, and a space formed between the first V-shaped positioning block 241 and the second V-shaped positioning block 242 can accommodate one workpiece 4. One end that the backup pad 21 was kept away from to drilling rod 22 is equipped with the regulating plate 25 with backup pad 21 parallel interval setting, regulating plate 25 and drilling rod 22 sliding connection, be equipped with bracing piece 27 between regulating plate 25 and the backup pad 21, bracing piece 27 one end sets up in backup pad 21, the other end and the regulating plate 25 sliding connection of bracing piece 27, the cover is equipped with buffer spring 26 on the bracing piece 27, in this embodiment, set up a bracing piece 27 respectively in the both sides of drilling rod 22, and the upper end of bracing piece 27 is equipped with hexagon nut, prevent that bracing piece 27 from wearing out from regulating plate 25, also be equipped with the nut on the drilling rod 22, be used for being connected.

Referring to fig. 3, a pressing plate 23 is arranged at one end of the supporting plate 21 close to the material blocking assembly 3, the pressing plate 23 includes a first leg 231 and a second leg 232 which are respectively arranged at two sides of the feeding chute 1, the upper ends of the first leg 231 and the second leg 232 are respectively arranged on the supporting plate 21, and the lower ends of the first leg 231 and the second leg 232 are respectively connected with the material blocking assembly 3, so as to support the whole drilling assembly 2.

Referring to fig. 3, the dam assembly 3 includes: baffle 31 and the reset spring 32 of setting under baffle 31, the below of baffle 31 is equipped with baffle backup pad 33, in this embodiment, baffle backup pad 33 is "L" type, including the side that the level set up and the side of vertical setting promptly, the side of vertical setting is connected on feed chute 1, the side that the level set up sets up subaerial, it is parallel with baffle backup pad 33, be equipped with baffle bracing piece 34 on the baffle backup pad 33, baffle 31 slides and sets up on baffle bracing piece 34, baffle bracing piece 34 is two, two baffle bracing pieces 34 use the axis of feed chute 1 to set up as the symmetry axis bilateral symmetry respectively, the distance between two baffle bracing pieces 34 is not less than the width of work piece 4. The return spring 32 is disposed between the baffle plate 31 and the baffle plate support plate 33, and the return spring 32 is fitted over the baffle plate support rod 34. A space for accommodating one workpiece 4 is formed between the second V-shaped positioning block 242 and the blocking plate 31.

The working process of the device is described below with reference to fig. 1-3: the workpiece 4 with the same model and the arc-shaped outer surface is placed in the feed chute 1, because the first trough 11 is of a structure which is obliquely arranged from top to bottom, the workpiece 4 can roll forwards along the feed chute 1, the end part of the second trough 12 is provided with the material blocking component 3, the baffle 31 in the material blocking component 3 blocks the workpiece 4 to prevent the workpiece 4 from rolling out of the feed chute 1, the drill rod 22 is pressed downwards, the first V-shaped positioning block 241 and the second V-shaped positioning block 242 play a role in positioning the workpiece 4 right below the drill rod 22 to prevent the workpiece 4 from slipping, so that the workpiece 4 is drilled, when the drill rod 22 is pressed downwards for drilling, the support plate 21 simultaneously moves downwards along with the drill rod 22, so as to drive the pressure plate 23 at the end part of the support plate 21 to press the baffle 31 downwards, the baffle 31 descends, the workpiece 4 between the second V-shaped positioning block 242 and the baffle 31 is released, the drill rod 22 is drilled, and, the baffle 31 also rises under the action of the return spring 32, the workpiece 4 with a drilled hole rolls to a position between the second V-shaped positioning block 242 and the baffle 31 along the feeding chute 1, the workpiece 4 to be drilled next rolls forwards to a position between the first V-shaped positioning block 241 and the second V-shaped positioning block 242, the drill rod 22 continues to be pressed downwards to complete drilling, the drill rod 22 rises to complete the release of the workpiece 4, and therefore automatic feeding and discharging during drilling are achieved.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. An automatic drilling device, comprising: the device comprises a feed chute (1), a drilling assembly (2) arranged above a discharge end close to the feed chute (1) and a material blocking assembly (3) arranged at the discharge end of the feed chute (1);

the feeding end of the feeding groove (1) is higher than the discharging end of the feeding groove (1);

the drilling assembly (2) comprises: the device comprises a supporting plate (21) and a drill rod (22) arranged on the supporting plate (21), wherein the axis of the drill rod (22) is perpendicular to the discharge end of the feed chute (1), a pressing plate (23) is arranged at one end, close to the material blocking assembly (3), of the supporting plate (21), the pressing plate (23) is connected with the material blocking assembly (3), and a positioning block (24) is arranged on one surface, close to the feed chute (1), of the supporting plate (21);

the material blocking assembly (3) comprises: the positioning device comprises a baffle plate (31) and a return spring (32) arranged below the baffle plate (31), wherein a space for accommodating a workpiece (4) is formed between the baffle plate (31) and the positioning block (24).

2. Automatic drilling device according to claim 1, characterized in that the feed chute (1) comprises a bottom surface and side walls arranged opposite on both sides of the bottom surface, the distance between the two side walls matching the width of the work piece (4).

3. Automatic drilling device according to claim 1, characterized in that the feed chute (1) comprises in sequence: the material blocking device comprises a first material groove (11) and a second material groove (12), wherein the first material groove (11) is obliquely arranged, the second material groove (12) is horizontally arranged, and the drilling assembly (2) and the material blocking assembly (3) are both arranged at one end, far away from the first material groove (11), of the second material groove (12).

4. The automatic drilling device according to any one of claims 1 to 3, characterized in that one end of the drill rod (22) far away from the support plate (21) is provided with an adjusting plate (25) arranged in parallel and at a distance from the support plate (21), the adjusting plate (25) is connected with the drill rod (22) in a sliding manner, and a buffer spring (26) is arranged between the adjusting plate (25) and the support plate (21).

5. The automatic drilling device according to claim 4, characterized in that a support rod (27) is arranged between the adjusting plate (25) and the support plate (21), one end of the support rod (27) is arranged on the support plate (21), the other end of the support rod (27) is connected with the adjusting plate (25) in a sliding manner, and the buffer spring (26) is sleeved on the support rod (27).

6. The automatic drilling device according to claim 5, wherein the positioning block (24) comprises a first V-shaped positioning block (241) and a second V-shaped positioning block (242) which are arranged at intervals along the feeding direction, and a space formed between the first V-shaped positioning block (241) and the second V-shaped positioning block (242) can accommodate one workpiece (4).

7. The automatic drilling device according to claim 6, characterized in that a space for accommodating a workpiece (4) is formed between the second V-shaped positioning block (242) and the baffle plate (31).

8. The automatic drilling device according to claim 7, wherein the pressing plate (23) comprises a first leg (231) and a second leg (232) respectively disposed at both sides of the feed chute (1), upper ends of the first leg (231) and the second leg (232) are respectively disposed on the support plate (21), and lower ends of the first leg (231) and the second leg (232) are respectively disposed on the baffle plate (31).

9. The automatic drilling device according to claim 8, wherein a baffle supporting plate (33) is arranged below the baffle (31), a baffle supporting rod (34) is arranged on the baffle supporting plate (33), the baffle (31) is slidably arranged on the baffle supporting rod (34), the return spring (32) is arranged between the baffle (31) and the baffle supporting plate (33), and the return spring (32) is sleeved on the baffle supporting rod (34).

10. The automatic drilling device according to claim 9, wherein the number of the baffle support rods (34) is at least two, and the distance between the baffle support rods (34) is not less than the width of the workpiece (4).