CN217095842U - Throwing hole dotter - Google Patents

Abstract

The utility model relates to a hole throwing dotter, which is used for aligning and centering the un-drilled workpiece before drilling through the known hole of the drilled workpiece; the punching head comprises a shell, an end cover, a punching head, a first spring and a centering device; the shell is abutted with a drilled workpiece; the centering device comprises a centering block; the centering block is a hollow cylinder with a boss in the middle; a first spring is arranged between the boss and the end cover; one end of the centering block is set to be a conical surface; the conical surface is abutted with a known hole of a drilled workpiece; the centering block is connected with the punch in a sliding manner; a second step hole is formed in the centering block; a bulge is arranged in the middle of the punch; a second spring between the protrusion and the end cap; one end of the punch is conical; the other end is provided with a handle; the utility model has the advantages that: the device comprises a shell, an end cover, a punch, a first spring and a centering block; centering by using the centering block and a known hole of the drilled workpiece; the punch is concentric with the centering block; the deviation of the punch during the lifting of the punching point is prevented.

Description

Throwing hole dotter

Technical Field

The utility model belongs to the technical field of the pincers worker system hole technique and specifically relates to a throw hole dotter.

Background

During the operation of a fitter, particularly the installation of a jig, it is often necessary to project screw through holes onto the installation site to prepare threaded holes. According to the prior method, a drill bit with the same size is found or a marine punch with the same diameter is turned according to the size of a hole to knock out a marine punch point, so that the defects are as follows: firstly, ocean dashes and the cooperation that the hole can not be fine, leads to the ocean to dash the point and can not project the positive centre, secondly strikes the process and easily beats the joint. This can lead to offset subsequent punch tapping. When the adjustment, the screw interferes with the joint through hole, the joint cannot move to the correct position, the assembly difficulty is increased, the assembly efficiency is reduced, and improvement is needed.

Among the prior patent with the utility model discloses the closest technique does: the name is a bolt bridge steel member hole throwing device (application number CN 201911199646.6); the patent discloses that the device comprises a handle, a hole sleeve, a perforating needle and a compression spring; the handle is of an integral shaft tube structure, and a first limiting screw is detachably mounted at the bottom end of the handle in a matched mode; the hole sleeve is of an integral shaft sleeve type structure, one end of the hole sleeve penetrates through the inside of the handle, and the other end of the hole sleeve extends out of the upper outer side of the handle; the punching needle is arranged in the sleeve hole of the hole sleeve in a matching and penetrating mode, the needle head of the punching needle extends out of the upper outer side of the hole sleeve, the needle rod of the punching needle is located inside the hole sleeve, and the bottom end of the needle rod is detachably mounted with a second limiting screw in a matching mode; the compression spring comprises a hole sleeve compression spring and a perforating needle compression spring; the hole sleeve compression spring is sleeved outside the hole sleeve positioned inside the lower end of the handle in a matching manner and is limited by the first limiting screw; the perforating needle compression spring is sleeved on a needle rod of the perforating needle positioned in the lower end of the hole sleeve in a matching manner and is limited by the second limiting screw. Bolt bridge steel member throws hole device, wherein: the handle consists of a lower handle shaft seat, a middle handle shaft tube connected to the top end of the lower handle shaft seat and an upper handle shaft tube connected to the top end of the middle handle shaft tube; the lower end of the inner pipe hole of the middle handle shaft pipe is communicated with the spring installation cavity, and the upper end of the inner pipe hole of the middle handle shaft pipe is communicated with the inner pipe hole of the upper handle shaft pipe; the lower handle shaft seat is provided with a screw mounting hole from the center of the bottom along the axial direction, and the lower handle shaft seat is provided with a spring mounting cavity from the tail end of the screw mounting hole along the axial direction; the first limiting screw is detachably arranged in the screw mounting hole in a matching manner; this patent suffers from the following disadvantages: as the cylindrical surface is adopted for centering, different hole throwing devices are required to be manufactured as long as the sizes of the holes are different in practical use; various specifications are required, and the use is inconvenient;

application number is CN202020641170.9 in addition among the current patent, and the name is a hole positioner is thrown to bridge steel construction segmentation hole crowd, and this patent discloses a hole positioner is thrown to bridge steel construction segmentation hole crowd, including adjusting the template, the mounting hole has been seted up at adjusting the top of template, and movable mounting has fixed die plate in the mounting hole, has all seted up the pressure strip on the both sides inner wall of mounting hole, and two pressure strips are all installed on fixed die plate, set up a plurality of locating holes on the fixed die plate, four regulation holes have been seted up at adjusting the top of template, and equal slidable mounting has the regulating block in four regulation holes. The utility model has reasonable structure and convenient operation, the through holes on the positioning device are flexible in position, the distance between the through holes can be conveniently adjusted, and the positioning device can adapt to the distance between the holes in different segmented hole groups; the patent can only find a drill bit with the same size according to the size of the hole to match the drill, and has limitation.

The above disadvantages need to be overcome, so a convenient, fast, centering and positioning device is urgently needed.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a throw hole dotter, can convenient and fast to throw the hole and center.

In order to solve the problems, the utility model adopts the following technical proposal,

a throwing hole dotter is used for centering a workpiece which is not drilled with a hole before drilling through a known hole of the workpiece which is drilled with the hole; the punching head comprises a shell, an end cover, a punching head, a first spring and a centering device; the shell is abutted with the drilled workpiece; a stepped hole is formed in the shell; the end cover is fixedly arranged on one surface of the shell, which is provided with the large end of the stepped hole; the centering device is arranged in an inner space enclosed by the shell and the end cover; a first spring is arranged between the centering device and the end cover; the centering device is connected with the small end of the stepped hole in a sliding manner; the punch is connected with the centering device in a sliding mode.

Further, the centering device comprises a centering block; the centering block is a hollow cylinder with a boss in the middle; a first spring is arranged between the boss and the end cover.

Furthermore, one end of the centering block is set to be a conical surface; the conical surface abuts a known hole of the drilled workpiece.

Further, the centering block is connected with the punch in a sliding mode.

Furthermore, a second stepped hole is formed in the centering block; a bulge is arranged in the middle of the punch; the protrusion abuts against the stepped hole.

Furthermore, a second spring is arranged between the protrusion and the end cover.

Furthermore, one end of the punch is conical; the other end is provided with a handle.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the device comprises a shell, an end cover, a punch, a first spring and a centering device; centering with a centering device and a known hole of a drilled workpiece; the punch is concentric with the centering device; the deviation of the punch during the lifting of the punching point is prevented;

2. the centering block is provided with a conical surface, and the conical surface and the known hole of the drilled workpiece are centered and guided, so that the top of the punch is prevented from being eccentric with the known hole.

3. The centering block is pressed in the shell through a first spring arranged between the centering block and the end cover, so that the conical surface of the centering block is concentric with the known hole, and the punch is pressed on the surface of the workpiece which is not drilled with holes through a second spring without loosening; the conical surface of the centering block can be matched with known holes of drilled workpieces with different sizes, so that the device is wide in application range, and centering can be performed as long as the known hole of the drilled workpiece is not larger than the maximum diameter of the conical surface, so that the application range is wide, and the problem that a punch with the same diameter as the known hole is needed to be centered originally is solved.

Drawings

FIG. 1 is a schematic cross-sectional view of the structure of the present invention;

FIG. 2 is a schematic view of a first usage state structure of the present invention;

FIG. 3 is a structural diagram of a second usage state of the present invention;

FIG. 4 is a schematic cross-sectional view of the structure of the centering block;

the reference numbers in the figures illustrate:

1-a shell;

2-end cap;

3-punching head;

4-a handle;

5-centering block;

6-a first spring;

7-second spring.

Detailed Description

It should be noted at the outset that the discussion of any embodiment of the present invention is merely exemplary in nature, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; there are many other variations of the different aspects of the invention as described above which are not provided in detail for the sake of brevity. Accordingly, other embodiments are within the scope of the following claims.

In addition, the drawings in the following description are only preferred embodiments of the present invention, and it is obvious to those skilled in the art that other drawings can be obtained without inventive efforts. In addition, these embodiments are not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Moreover, spatially relative terms, such as "above … …," "above … …," "above … … surface," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", etc. are used to define the components, and are only used to facilitate distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, especially, have no special meaning in "main, secondary" or arrangement order, and therefore, should not be construed as limiting the scope of the present application.

The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention.

Example 1

As shown in fig. 1-4:

a throwing hole dotter is used for centering a workpiece which is not drilled with a hole before drilling through a known hole of the workpiece which is drilled with the hole; the device comprises a shell 1, an end cover 2, a punch 3, a first spring 6 and a centering device; the shell 1 is abutted with the drilled workpiece; a stepped hole is formed in the shell 1; the end cover 2 is fixedly arranged on one surface of the shell 1, which is provided with a large end of the stepped hole; the centering device is arranged in an inner space enclosed by the shell 1 and the end cover 2; a first spring 6 is arranged between the centering device and the end cover 2; the centering device is connected with the small end of the stepped hole in a sliding manner; the punch 3 is connected with the centering device in a sliding mode.

The centering means comprise a centering block 5; the centering block 5 is a hollow cylinder with a boss in the middle; a first spring 6 is arranged between the boss and the end cover 2.

One end of the centering block 5 is set to be a conical surface; the conical surface abuts a known hole of the drilled workpiece.

The centering block 5 is connected with the punch 3 in a sliding manner.

A second step hole is formed in the centering block 5; a bulge is arranged in the middle of the punch 3; the protrusion abuts against the stepped hole. The second stepped hole is connected with the punch 3 in a sliding manner;

one end of the punch 3 is conical. The conical end portion can punch the undrilled workpiece to a point.

The utility model has the working process;

as shown in fig. 2-3, the device is installed, the centering block 5 is aligned with the known hole of the drilled workpiece, the bottom surface of the shell 1 is flatly attached to the surface of the drilled workpiece, and the conical surface of the centering block 5 is attached to the known hole; the conical end of the punch 3 is abutted to a workpiece which is not drilled, and a hammer is used for striking one end of the punch 3 which is not provided with a cone, so that a punching point can be left on the workpiece which is not drilled, and the guide is convenient to drill.

Example 2

This embodiment has basically the same structure as embodiment 1,

except for a second spring 7 between the boss and the end cap 2. The second spring 7 is arranged, so that the conical end of the punch 3 can be tightly attached to the surface of the workpiece which is not drilled, and the problems that the conical end is far away from the surface of the workpiece which is not drilled, the punching point is too small and the depth is insufficient when the punch is hit are avoided;

the working principle and the using method of the embodiment are basically the same as those of the embodiment 1; it will not be described in detail.

Example 3

The structure of the embodiment is basically the same as that of the embodiment 1, except that the other end of the punch 3 is provided with a handle 4; the handle 4 can be easily pulled up by hand when in use, and the punch 3 can be easily pulled up by grasping with a large contact surface;

the working principle of the embodiment is basically the same as that of the embodiment 2; will not be described in detail.

At present, the technical scheme of the application adopts the best implementation mode of the embodiment 1, and pilot test is carried out, namely small-scale experiment of products before large-scale mass production; after the pilot test is finished, the investigation for the use of the user is carried out in a small range, and the investigation result shows that the satisfaction degree of the user is higher; the preparation of the product for formal production for industrialization (including intellectual property risk early warning investigation) is already set out; the above; is only a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; according to the technical scheme of the utility model and the improvement conception, equivalent substitution or change is carried out; are all covered by the protection scope of the present invention.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims (7)

1. A throwing hole dotter is used for centering a workpiece which is not drilled with a hole before drilling through a known hole of the workpiece which is drilled with the hole; the method is characterized in that: comprises a shell (1), an end cover (2), a punch (3), a first spring (6) and a centering device; the shell (1) is abutted with the drilled workpiece; a stepped hole is formed in the shell (1); the end cover (2) is fixedly arranged on one surface of the shell (1) provided with the large end of the stepped hole; the centering device is arranged in an inner space enclosed by the shell (1) and the end cover (2); a first spring (6) is arranged between the centering device and the end cover (2); the centering device is connected with the small end of the stepped hole in a sliding manner; the punch (3) is connected with the centering device in a sliding mode.

2. A hole-throwing dotter according to claim 1, wherein: the centering device comprises a centering block (5); the centering block (5) is in a hollow cylindrical shape, and a boss is arranged in the middle of the centering block; a first spring (6) is arranged between the boss and the end cover (2).

3. A hole-throwing dotter according to claim 2, wherein: one end of the centering block (5) is set to be a conical surface; the conical surface abuts a known hole of the drilled workpiece.

4. A hole-throwing dotter according to claim 3, wherein: the centering block (5) is connected with the punch (3) in a sliding manner.

5. A hole-throwing dotter according to claim 4, wherein: a second stepped hole is formed in the centering block (5); the middle part of the punch (3) is provided with a bulge; the protrusion abuts against the stepped hole.

6. A hole-throwing dotter according to claim 5, wherein: and a second spring (7) is arranged between the protrusion and the end cover (2).

7. A hole-throwing dotter according to claim 6, wherein: one end of the punch (3) is conical; the other end is provided with a handle (4).

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