CN209792686U - Drilling mistake proofing device - Google Patents

Abstract

The utility model discloses a drilling mistake proofing device, which comprises a handle, wherein the handle is of a hollow structure at the middle part, a spring cavity and a connecting rod cavity are respectively formed at the middle part of the handle along the length direction from front to back, and the inner diameter of the spring cavity is larger than that of the connecting rod cavity; a spring is arranged in the spring cavity, a connecting rod is arranged at the front end of the spring, the front end of the spring is abutted against the connecting rod, and the rear end of the spring is abutted against the inner wall of the rear end of the spring cavity; the front end of the handle is provided with a sample punch which is of a tubular structure; the front end of the connecting rod is fixed with a punch head, and the punch head extends towards the sample punch head and extends out of the front end of the sample punch head. The device has simple structure and convenient use, can realize accurate positioning, and can not shield the sight of an operator during lofting and punching; the offset is visual during drilling, and the drill bit is adjusted at any time to reach the qualified hole position size; and can change the appearance according to the size of hole wantonly and dash, satisfy the on-the-spot demand.

Description

Drilling mistake proofing device

Technical Field

The utility model relates to a hole puncher technical field, concretely relates to drilling mistake proofing device.

Background

In the process of engine cover production, need bore a plurality of holes at engine cover or other positions, at present, the hole of boring easily bores partially to cause the scrapping and the installation difficulty of work piece, the appearance dashes easily and shelters from operator's sight during the number hole.

SUMMERY OF THE UTILITY MODEL

to the defect among the prior art, the utility model provides a drilling mistake proofing device, the device can be directly effectual discovery drilling's offset, and the drill bit is in time adjusted, reaches the purpose of guaranteeing size precision.

The utility model discloses a realize through following technical scheme:

A drilling mistake proofing device comprises a handle, wherein the handle is of a hollow structure in the middle, a spring cavity and a connecting rod cavity are formed in the middle of the handle from front to back along the length direction of the handle, and the inner diameter of the spring cavity is larger than that of the connecting rod cavity; a spring is arranged in the spring cavity, a connecting rod is arranged at the front end of the spring, the front end of the spring is abutted against the connecting rod, and the rear end of the spring is abutted against the inner wall of the rear end of the spring cavity; the front end of the handle is provided with a sample punch which is of a tubular structure; the front end of the connecting rod is fixed with a punch head, and the punch head extends towards the sample punch head and extends out of the front end of the sample punch head.

The utility model discloses a drilling mistake proofing device during the use, selects the appearance of suitable size to dash to twist soon on the handle, and the top that dashes the appearance is put on the hole position of required number hole work piece, strikes the rear end of hand with the hammer, and under the effect of power, the handle will move ahead to the work piece with the appearance is dashed, can appear the appearance on workpiece surface and dash the hole and one with the same circle of wanting hole diameter size, and the drift is automatic recovery to initial condition under the effect of spring. When the maximum diameter of the drill reaches the circle during drilling, an operator can visually see whether the drilled hole is deviated or not, and the position and the size of the drilled hole can be adjusted and guaranteed in time.

Preferably, the spring suit is in the outside of connecting rod, just the length of connecting rod is greater than the length of spring, when the spring is in natural state, the rear end of connecting rod is located the connecting rod intracavity, and the spring compresses under the support of connecting rod, avoids appearing the crooked condition of spring.

Preferably, the sample punch is in a sharp-nose shape with the diameter of the rear end larger than that of the front end, and a sample punching hole and a circle with the same size as the diameter of the required hole can appear on the surface of the workpiece.

Preferably, the sample punch is in threaded connection with the handle, and the sample punch is convenient to disassemble.

Preferably, the rear end of the handle is provided with anti-skidding lines, so that the friction force between the handle and the handle is increased when the handle is held by a hand, and the handle is safer.

Preferably, the front end of the connecting rod protrudes to the periphery to form a bump, the spring is abutted with the dry bump, and the diameter of the bump is larger than the inner diameter of the spring, so that the front end of the spring can be abutted on the bump.

Preferably, the sample punch is internally provided with a stop block which is used for abutting against the lug at the front end of the connecting rod when the lug at the front end of the connecting rod moves to the front end of the sample punch so as to prevent the lug from sliding out of the handle.

The beneficial effects of the utility model are embodied in: the device has simple structure and convenient use, can realize accurate positioning, and can not shield the sight of an operator during lofting and punching; the offset is visual during drilling, and the drill bit is adjusted at any time to reach the qualified hole position size; and can change the appearance according to the size of hole wantonly and dash, satisfy the on-the-spot demand.

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 embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a front view of a drilling mistake proofing device according to an embodiment of the present invention;

Fig. 2 is a sectional view of the drilling error prevention apparatus shown in fig. 1.

In the attached drawing, 1 handle, 2 spring cavities, 3 connecting rod cavities, 4 springs, 5 connecting rods, 6 punches, 7 punches, 8 anti-slip corrugations, 9 bumps and 10 stoppers are arranged.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention. Translation of characters

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Translation of characters

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

With reference to fig. 1 and 2, the drilling mistake proofing device of the present invention comprises a handle 1, wherein the handle 1 is a hollow structure, a spring cavity 2 and a connecting rod cavity 3 are respectively formed in the middle of the handle 1 from front to back along the length direction of the handle, and the inner diameter of the spring cavity 2 is greater than the inner diameter of the connecting rod cavity 3; a spring 4 is arranged in the spring cavity 2, a connecting rod 5 is arranged at the front end of the spring 4, the front end of the spring 4 is abutted against the connecting rod 5, and the rear end of the spring is abutted against the inner wall of the rear end of the spring cavity 2; the front end of the handle 1 is provided with a sample punch 6, and the sample punch 6 is of a tubular structure; a punch 7 is fixed to the front end of the link 5, and the punch 7 extends in the direction of the punch 6 and protrudes from the front end of the punch 6.

In this embodiment, the spring 4 is sleeved outside the connecting rod 5, the length of the connecting rod 5 is greater than that of the spring 4, and when the spring 4 is in a natural state, the rear end of the connecting rod 5 is located in the connecting rod cavity 3.

In the present example, the sample punch 6 is in a sharp-nose shape with the diameter of the rear end larger than that of the front end; the sample punch 6 is in threaded connection with the handle 1, and sample punches with multiple specifications can be mounted on the handle; the rear end of the handle 1 is provided with anti-skid corrugations 8.

In this embodiment, the front end of the link 5 protrudes to the periphery to form a projection 9, the spring 4 abuts against the projection 9, and the diameter of the projection 9 is larger than the inner diameter of the spring 4.

In this embodiment, a stopper 10 is disposed inside the plunger 6, and the stopper 10 is used for abutting against the protrusion at the front end of the connecting rod 5 when the protrusion moves to the front end of the plunger to prevent the protrusion from sliding out of the handle 1

finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims (7)

1. The utility model provides a drilling mistake proofing device which characterized in that: the handle comprises a handle (1), wherein the handle (1) is of a hollow structure in the middle, a spring cavity (2) and a connecting rod cavity (3) are respectively formed in the middle of the handle (1) from front to back along the length direction of the handle, and the inner diameter of the spring cavity (2) is larger than that of the connecting rod cavity (3); a spring (4) is arranged in the spring cavity (2), a connecting rod (5) is arranged at the front end of the spring (4), the front end of the spring (4) is abutted against the connecting rod (5), and the rear end of the spring is abutted against the inner wall of the rear end of the spring cavity (2); the front end of the handle (1) is provided with a sample punch (6), and the sample punch (6) is of a tubular structure; and a punch head (7) is fixed at the front end of the connecting rod (5), and the punch head (7) extends towards the sample punch (6) and extends out of the front end of the sample punch (6).

2. The drilling mistake proofing device of claim 1, wherein: spring (4) suit is in the outside of connecting rod (5), just the length of connecting rod (5) is greater than the length of spring (4), when spring (4) are in natural state, the rear end of connecting rod (5) is located connecting rod chamber (3).

3. The drilling mistake proofing device of claim 1, wherein: the sample punch (6) is in a sharp-nose shape, and the diameter of the rear end of the sample punch is larger than that of the front end of the sample punch.

4. The drilling mistake proofing device of claim 3, wherein: the sample punch (6) is in threaded connection with the handle (1).

5. The drilling mistake proofing device of claim 4, wherein: the rear end of the handle (1) is provided with anti-skid corrugations (8).

6. The drilling mistake proofing device of claim 2, wherein: the front end of the connecting rod (5) protrudes towards the periphery to form a convex block (9), the spring (4) is abutted against the convex block (9), and the diameter of the convex block (9) is larger than the inner diameter of the spring (4).

7. The drilling mistake proofing device of claim 1, wherein: a stop block (10) is arranged inside the sample punch (6), and the stop block (10) is used for abutting against the convex block at the front end of the connecting rod (5) when the convex block moves to the front end of the sample punch to prevent the convex block from sliding out of the handle (1).