CN211464928U

CN211464928U - Drilling auxiliary device

Info

Publication number: CN211464928U
Application number: CN201922127027.8U
Authority: CN
Inventors: 张忠海; 张雪松; 葛少平; 刘志伟; 陈龙飞; 江鑫; 陈占峰; 孙克安
Original assignee: CRRC Tangshan Co Ltd
Current assignee: CRRC Tangshan Co Ltd
Priority date: 2019-12-02
Filing date: 2019-12-02
Publication date: 2020-09-11
Anticipated expiration: 2029-12-02

Abstract

The utility model provides a drilling auxiliary device, which belongs to the technical field of auxiliary tools for drilling, and comprises a fixing mechanism, an adjusting mechanism and a horizontal detection mechanism, wherein the fixing mechanism is used for fixing on a handheld drilling tool, the adjusting mechanism is connected with the fixing mechanism in a sliding way, the sliding direction is parallel to a drill bit, a through hole for the drill bit to pass through is arranged at the front end of the fixing mechanism, the through hole is used for being abutted against a part to be drilled and limiting the exposed length of the front end of the drill bit, the horizontal detection mechanism is arranged on the fixing mechanism or the adjusting mechanism, and the horizontal detection mechanism is used for detecting whether the drill bit is horizontal or not; the utility model provides a drilling auxiliary device has realized that the manual work is when drilling the blind hole through handheld drilling instrument, and the accurate control drilling depth, and pore-forming has once effectively improved the shaping quality of drilling efficiency and blind hole.

Description

Drilling auxiliary device

Technical Field

The utility model belongs to the technical field of appurtenance for drilling, more specifically say, relate to a drilling auxiliary device.

Background

Railway vehicles typically employ aluminum alloy bodies. In the production process, blind holes need to be processed on the vehicle body. The blind holes at some parts can not be processed by a machine tool, and in addition, some newly-added blind holes due to process improvement can not be processed by the machine tool, so that the blind holes need to be drilled manually by a handheld drilling tool, and the blind holes are most commonly drilled on the vertical surface of the end wall or the outer windshield of the vehicle body. During manual drilling, the drilling depth is difficult to control, often needs to go down repeatedly, measures the pore-forming depth repeatedly, and not only predetermined drilling depth can't be realized to the accuracy, and it is inconsistent to go down the direction at every turn moreover, leads to the pore wall coarse, and blind hole shaping quality is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a drilling auxiliary device, when aiming at solving artifical processing blind hole through handheld drilling instrument on the facade, the poor problem of blind hole shaping quality.

In order to achieve the above object, the utility model adopts the following technical scheme: the drilling auxiliary device comprises a fixing mechanism, an adjusting mechanism and a horizontal detection mechanism;

the fixing mechanism is used for fixing on the handheld drilling tool;

the adjusting mechanism is connected with the fixing mechanism in a sliding mode, the sliding direction of the adjusting mechanism is parallel to that of the drill bit, a through hole for the drill bit to penetrate through is formed in the front end of the adjusting mechanism, the adjusting mechanism is abutted to a part to be drilled and used for limiting the length of the exposed front end of the drill bit;

the horizontal detection mechanism is arranged on the fixing mechanism or the adjusting mechanism and is used for detecting whether the drill bit is horizontal or not.

As another embodiment of this application, adjustment mechanism include a plurality of parallel arrangement each other, and respectively with fixed establishment sliding connection's slide bar with be used for with the slide bar fastening is in fastening subassembly on the fixed establishment, a plurality of the slide bar all with the drill bit is parallel and lay in the drill bit periphery.

As another embodiment of this application, adjustment mechanism still including be used for with the stopper of treating the drilling part butt, the stopper respectively with the front end of slide bar is connected, just wear to establish the hole and establish on the stopper.

As another embodiment of this application, be equipped with the puller bolt on the stopper, the front end of puller bolt is used for stretching into wear to establish the hole and will the drill bushing on the handheld drilling instrument is fixed in wearing to establish the hole.

As another embodiment of this application, fixed establishment is equipped with the clamp splice, the clamp splice is equipped with and is used for the cover to establish the mounting hole of handheld drilling tool's organism head with link up the mounting hole with the outside breach of clamp splice, the both sides of breach form two expansion ends of clamp splice, thereby the expansion end is used for being close to each other or keeping away from, thereby adjust the inner wall of mounting hole presss from both sides tightly the organism head of handheld drilling tool.

As another embodiment of the application, two the activity is served and all is equipped with first grab handle, two first grab handle passes through clamping bolt connection fastening to make the clamp splice presss from both sides the organism head of handheld drilling tool.

As another embodiment of this application, be equipped with the second grab handle on the stopper, the second grab handle with the stopper is dismantled and assembled to be connected.

As another embodiment of this application, the quantity of slide bar is three, the slotted hole has been seted up on the slide bar, fastening component is for locating the first locking bolt of a plurality of on the clamp splice, the slide bar with the help of first locking bolt with clamp splice sliding connection or with clamp splice fixed connection just keep with the drill bit is parallel.

As another embodiment of this application, be equipped with the direction slide opening on the clamp splice, the slide bar with the help of the direction slide opening with clamp splice sliding connection just keep with the drill bit is parallel, fastening component is for locating second locking bolt on the clamp splice, second locking bolt is used for stretching into in the direction slide opening, will the slide bar lock is died.

As another embodiment of the present application, the level detection mechanism includes a bubble level.

Compared with the prior art, the auxiliary drilling device provided by the utility model is provided with the adjusting mechanism parallel to the drill bit, the adjusting mechanism is fixed on the head part of the hand-held drilling tool through the fixing mechanism and extends forwards, and the extending end of the adjusting mechanism is close to the top end of the drill bit; when the drilling is carried out, the top end of the drill bit gradually penetrates into a part to be drilled, the extending end of the adjusting mechanism gradually approaches to the part to be drilled, when the preset drilling depth is reached, the extending end of the adjusting mechanism is contacted with a workpiece to be drilled, and the drill bit cannot continuously penetrate, so that the drilling depth is accurately controlled; meanwhile, the adjusting mechanism is connected with the fixing mechanism in a sliding mode, and the distance between the extending end of the adjusting mechanism and the top end of the drill bit is adjustable, so that the adjustment of the punching depth is realized; the horizontal detection mechanism can detect whether the drill bit is horizontal or not, so that an operator is reminded to adjust the direction of the drill bit, and the direction of the drill bit is the preset drilling direction and is kept unchanged in the drilling process; the utility model provides a drilling auxiliary device passes through the adjustment mechanism control depth of punching, whether level through the level detection mechanism detection drill bit, when having realized that the manual work is bored the blind hole through handheld drilling instrument, accurate control drilling depth, and pore-forming once has effectively improved the shaping quality of drilling efficiency and blind hole.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic cross-sectional structural view of a drilling assisting device according to an embodiment of the present invention;

fig. 2 is a cross-sectional view taken along line a-a of fig. 1.

In the figure: 1. a horizontal detection mechanism; 21. a drill bit; 22. drilling a sleeve; 31. a slide bar; 311. a long slot hole; 32. A limiting block; 33. jacking the bolt; 34. a second grip; 35. a first locking bolt; 41. a clamping block; 411. A notch; 42. a first grip; 43. and clamping the bolt.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 and fig. 2 together, the drilling assisting device of the present invention will now be described. The auxiliary drilling device comprises a fixing mechanism, an adjusting mechanism and a horizontal detection mechanism 1; the fixing mechanism is used for fixing on the handheld drilling tool; the adjusting mechanism is connected with the fixing mechanism in a sliding mode, the sliding direction of the adjusting mechanism is parallel to that of the drill bit 21, a through hole for the drill bit 21 to penetrate through is formed in the front end of the adjusting mechanism, the adjusting mechanism is abutted to a part to be drilled, and the length of the exposed front end of the drill bit 21 is limited; the level detection mechanism 1 is arranged on the fixing mechanism or the adjusting mechanism, and the level detection mechanism 1 is used for detecting whether the drill bit 21 is level or not.

Compared with the prior art, the auxiliary drilling device provided by the utility model is provided with an adjusting mechanism parallel to the drill bit 21, the adjusting mechanism is fixed on the head of the hand-held drilling tool body through a fixing mechanism and extends forwards, and the extending end of the adjusting mechanism is close to the top end of the drill bit 21; when drilling, along with the fact that the top end of the drill bit 21 gradually penetrates into a part to be drilled, the extending end of the adjusting mechanism gradually approaches to the part to be drilled, when the preset drilling depth is reached, the extending end of the adjusting mechanism is in contact with a workpiece to be drilled, the drill bit 21 cannot continuously penetrate, and therefore accurate control of the drilling depth is achieved; meanwhile, the adjusting mechanism is connected with the fixing mechanism in a sliding mode, and the distance between the extending end of the adjusting mechanism and the top end of the drill bit 21 is adjustable, so that the adjustment of the punching depth is realized; the horizontal detection mechanism 1 can detect whether the drill bit 21 is horizontal, so that an operator is reminded to adjust the direction of the drill bit 21, and the direction of the drill bit 21 is the preset drilling direction and is kept unchanged in the drilling process; the utility model provides a drilling auxiliary device passes through the adjustment mechanism control depth of punching, whether level through level detection mechanism 1 detection drill bit 21, when having realized the manual work and having bored the blind hole through handheld drilling instrument, the accurate control depth of drilling, and pore-forming once has effectively improved the shaping quality of drilling efficiency and blind hole.

When needing to be explained, the drill 21 is a part of the hand-held drilling tool and is detachably arranged on the head part of the machine body of the hand-held drilling tool; the utility model provides a drilling auxiliary device which is generally used for drilling on a vertical surface, wherein the drilling plane is vertical to the ground, and the axis of a drilled blind hole is vertical to the drilling plane; when an operator punches holes by using the handheld drilling tool, whether the drill bit 21 is vertical to the left and right directions of a drilling plane or not can be easily seen due to the sight direction, but whether the drill bit is vertical to the up and down directions or not can not be seen; whether the drill bit 21 is horizontal or not, namely whether the drill bit 21 is vertical to the up-down direction of a drilling plane or not can be judged through the horizontal detection mechanism 1; when the drill bit 21 is horizontal, the sight line ensures that the drill bit 21 is vertical to the drilling plane in the left-right direction, and the drill bit 21 and the drilling plane are vertical in all directions. The hand-held drilling tool can be an existing tool such as a hand pneumatic drill or an electric hand drill.

As a specific embodiment of the auxiliary device for drilling provided in the present invention, please refer to fig. 1 and fig. 2, the adjusting mechanism includes a plurality of mutually parallel sliding rods 31 slidably connected to the fixing mechanism and a fastening component for fastening the sliding rods 31 to the fixing mechanism, and the plurality of sliding rods 31 are all parallel to the drill bit 21 and are disposed at the periphery of the drill bit 21. The sliding rod 31 is connected with the fixing mechanism in a sliding manner, so that the sliding connection between the adjusting mechanism and the fixing mechanism is realized; when the distance between the extending end of the sliding rod and the top end of the drill bit 21 needs to be adjusted, the sliding rod 31 and the fixing mechanism slide relatively, after the adjustment is completed, the sliding rod 31 and the fixing mechanism are locked by the fastening assembly, so that the extending end of the adjusting mechanism cannot move when being abutted to a part to be drilled, and the accurate control of the drilling depth is realized.

The slide rods 31 are arranged in a plurality of numbers, which is beneficial to ensuring that the adjusting mechanism is parallel to the drill bit 21, and the sliding direction of the adjusting mechanism is always the same as the axial direction of the drill bit 21, so that the punching depth of the drill bit 21 can be accurately adjusted. Specifically, the number of the slide rods 31 is three, one slide rod 31 is arranged right above the drill 21, and the remaining two slide rods are respectively arranged on two sides of the drill 21.

As a specific implementation manner of the drilling assisting device, please refer to fig. 1, the adjusting mechanism further includes a stopper 32 for waiting for the butt of the drilling component, the stopper 32 is connected with the front end of the sliding rod 31 respectively, and the hole is arranged on the stopper 32. Specifically, the sliding rod 31 and the sliding block 32 are connected into a whole; the stop 32 may be provided with a stop surface for completely engaging with a drilling plane on the part to be drilled, so as to check whether the included angle between the axis of the drilled hole and the drilling plane is correct; the limiting surface is generally a plane or a curved surface, and is matched with the shape of the drilling plane according to the shape of the drilling plane; the limiting block 32 can also be provided with a limiting part with a smaller area, the limiting part is suitable for the condition of narrow space at the drilling hole, and the limiting part can go deep into the narrow space to contact with the drilling plane, so that the control of the drilling depth is realized; the diameter of the through hole is larger than that of the drill bit 21, and when the drill bit 21 penetrates through the through hole, enough clearance is formed between the drill bit and the hole wall of the through hole.

As a specific implementation manner of the drilling assisting device provided by the present invention, please refer to fig. 1, a tightening bolt 33 is disposed on the limiting block 32, and the front end of the tightening bolt 33 is used for extending into the through hole and fixing the drill sleeve 22 on the handheld drilling tool in the through hole. When the diameter of the drill bit 21 is small, the axial line of the drill bit 21 is easy to shift due to loose clamping, so that danger is generated, and drilling failure is caused; the drill bushing 22 can limit the drill bit 21 in the middle of the drill bit 21, so that the axial displacement of the drill bit 21 is prevented, and the drilling process is guaranteed to be smoothly carried out. To better accommodate different bore diameters, the bore diameter is typically larger, so there is sufficient space for the drill sleeve 22 to be disposed, the drill sleeve 22 typically being disposed coaxially within the bore. At least two jacking bolts 33 are arranged and can clamp the drill bushing 22 up and down; when the drill bushing 22 is not used, the puller bolt 33 is loosened, and then the drill bushing 22 can be taken down conveniently and quickly.

As a specific implementation manner of the drilling assisting device, please refer to fig. 1 and fig. 2, the fixing mechanism is equipped with the clamping block 41, the clamping block 41 is equipped with the mounting hole that is used for the cover to establish at the organism head of handheld drilling tool and link up the breach 411 of mounting hole and the clamping block 41 outside, two expansion ends of breach 411 form the clamping block 41, thereby the expansion end is used for being close to each other or keeping away from, thereby adjust the organism head that the inner wall of mounting hole presss from both sides tight handheld drilling tool. In this embodiment, the head of the hand-held drilling tool has a cylindrical portion, and the mounting hole of the clamping block 41 has the same diameter as the cylindrical portion or is slightly smaller than the cylindrical portion; when the clamping block 41 is clamped, the clamping block 41 is elastically deformed by means of external force, the movable ends positioned at the two sides of the notch 411 are close to each other, the mounting hole is reduced, and the hole wall of the mounting hole clamps the head of the machine body of the handheld drilling tool; after the external force is released, the clamping blocks 41 are restored to the original state, the size of the mounting hole is restored, and the machine body head of the handheld drilling tool can be easily taken out from the mounting hole.

As a specific embodiment of the drilling assisting device provided in the present invention, please refer to fig. 1 and fig. 2, the two movable ends are all provided with the first handles 42, and the two first handles 42 are connected and fastened by the clamping bolt 43, so that the clamping block 41 clamps the head of the hand-held drilling tool. Hand-held drilling tools typically have a single grip, but can only be held in one hand; the first handle 42 can be held by the other hand, so that the operator can conveniently control the posture of the handheld drilling tool, the drill bit 21 keeps the preset drilling direction, and the forming quality of the blind hole is improved. The first handle 42 is connected to the movable end of the clamping block 41, and the two movable ends can be driven to approach each other by the first handle 42, so as to clamp the clamping block 41, that is, the first handle 42 not only has a holding function, but also has a clamping function. Specifically, the first grip 42 is disposed at a lower side of the clamp block 41.

As a specific embodiment of the auxiliary device for drilling provided by the present invention, please refer to fig. 1, the stopper 32 is provided with a second handle 34, and the second handle 34 is detachably connected to the stopper 32. The second grab handle 34 is arranged on the limiting block 32, the limiting block 32 is far away from the handle of the handheld drilling tool compared with the clamping block 41, and force can be applied more conveniently when the handle and the second grab handle 34 are respectively held by two hands, so that the gesture of the handheld drilling tool can be controlled better by an operator. Moreover, the second handle 34 is detachably connected to the stopper 32, and different operators can select whether to use the second handle 34 according to their own operating habits. Specifically, the second grab handle 34 is disposed at the lower side of the stopper 32; the upper end of the second handle 34 is detachably connected to the bottom of the stopper 32 through a screw, for example, a threaded hole may be formed in the ground of the stopper 32, and a screw portion having an external thread is formed at the upper end of the second handle 34.

As a specific implementation manner of the auxiliary device for drilling, please refer to fig. 1 and fig. 2, the number of the sliding rods 31 is three, the sliding rods 31 are provided with long slots 311, the fastening assembly is a plurality of first locking bolts 35 disposed on the clamping blocks 41, and the sliding rods 31 are slidably connected with the clamping blocks 41 or fixedly connected with the clamping blocks 41 by the first locking bolts 35 and kept parallel to the drill bit 21. Specifically, the cross-sectional shape of the slide bar 31 is rectangular; one of the three slide bars 31 is arranged right above the drill bit 21, and the other two slide bars are arranged at two sides of the drill bit 21; the number of the first locking bolts 35 is also three, each sliding rod 31 is correspondingly provided with one first locking bolt 35, and the three first locking bolts 35 are all perpendicular to the drill bit 21; when the sliding rod 31 and the clamping block 41 slide relatively, the first locking bolt 35 moves in the long slotted hole 311 on the sliding rod 31, and when the sliding rod 31 is locked and fixed relatively to the clamping block 41, the sliding rod 31 and the drill 21 are in a parallel state by virtue of the compression of the first locking bolt 35; the length of the long slotted hole 311 is 150mm, the minimum value of the distance between the limiting block 32 and the top end of the drill 21 is 0, and the maximum value is not less than 120mm, so that the daily requirement can be met. It should be noted that the deformation of the clamping block 41 itself is small when the clamping block is clamped, and the first locking bolt 35 and the long slot hole 311 have a slight gap therebetween, so that the connection between the first locking bolt 35 and the long slot hole 311 is not affected.

As a specific implementation manner of the drilling auxiliary device, be equipped with the direction slide opening on the clamp splice 41, slide bar 31 just keeps parallel with drill bit 21 with the help of direction slide opening and clamp splice 41 sliding connection, and fastening components has second locking bolt for locating on the clamp splice 41, and second locking bolt is arranged in stretching into the direction slide opening, dies slide bar 31 lock. Specifically, in the present embodiment, the cross-sectional shape of the slide rod 31 is not limited, and may be rectangular or circular, the cross-sectional shape of the guide slide hole is adapted to the cross-sectional shape of the slide rod 31, and the axis of the guide slide hole is parallel to the axis of the drill 21, so that the slide rod 31 can be limited to a posture in which the drill 21 is parallel. It should be noted that the clamping block 41 is less deformed by itself when clamped, and the sliding rod 31 and the guide sliding hole have a slight gap therebetween, so that the sliding connection between the sliding rod 31 and the guide sliding hole is not affected.

As a specific embodiment of the drilling assisting device provided in the present invention, the level detecting mechanism 1 includes a bubble level meter. The bubble level meter is a mature existing product and comprises a long-strip-shaped and transparent closed container, liquid and bubbles are arranged in the closed container, and whether the closed container is horizontal or not is judged according to the position of the bubbles during use, so that whether an object fixedly connected with the closed container is in a horizontal state or not is judged. Specifically, the bubble level gauge is fixedly arranged on the clamping block 41 through a base.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. Drilling assistance device, characterized by, includes:

the fixing mechanism is used for fixing on the handheld drilling tool;

and the horizontal detection mechanism is arranged on the fixing mechanism or the adjusting mechanism and is used for detecting whether the drill bit is horizontal or not.

2. The drilling aid of claim 1, wherein the adjustment mechanism comprises a plurality of sliding rods arranged in parallel and slidably connected to the fixing mechanism, and a fastening assembly for fastening the sliding rods to the fixing mechanism, and the plurality of sliding rods are arranged in parallel with the drill and around the drill.

3. The auxiliary drilling device as claimed in claim 2, wherein the adjusting mechanism further comprises a limiting block for abutting against the part to be drilled, the limiting blocks are respectively connected with the front ends of the sliding rods, and the through holes are formed in the limiting blocks.

4. The drilling assisting device as claimed in claim 3, wherein the limiting block is provided with a puller bolt, and the front end of the puller bolt is used for extending into the through hole and fixing a drill bushing on the handheld drilling tool in the through hole.

5. The drilling aid of claim 4, wherein the fixing mechanism is provided with a clamping block, the clamping block is provided with a mounting hole for being sleeved on the body head of the hand-held drilling tool and a notch penetrating through the mounting hole and the outside of the clamping block, two sides of the notch form two movable ends of the clamping block, and the movable ends are used for being close to or far away from each other so as to adjust the inner wall of the mounting hole to clamp the body head of the hand-held drilling tool.

6. The drilling aid of claim 5, wherein a first grip is provided on each of the two movable ends, the two first grips being secured by a clamping bolt connection such that the clamp blocks clamp the body head of the hand-held drilling tool.

7. The drilling aid of claim 6, wherein the stop block is provided with a second grip, and the second grip is removably connected to the stop block.

8. The drilling aid of claim 7, wherein the number of the sliding rods is three, the sliding rods are provided with slotted holes, the fastening components are a plurality of first locking bolts arranged on the clamping blocks, and the sliding rods are connected with the clamping blocks in a sliding mode or fixedly connected with the clamping blocks by means of the first locking bolts and are kept parallel to the drill bit.

9. The drilling assisting device as claimed in claim 7, wherein a guiding sliding hole is formed in the clamping block, the sliding rod is slidably connected with the clamping block through the guiding sliding hole and is kept parallel to the drill bit, and the fastening component is a second locking bolt arranged on the clamping block and used for extending into the guiding sliding hole to lock the sliding rod.

10. A drilling aid as claimed in any one of claims 1 to 9 wherein the level detection means comprises a bubble level.