CN208811157U - A kind of counter boring limiting device - Google Patents

Abstract

The utility model discloses a kind of counter boring limiting devices, are related to technical field of mechanical processing, solve existing socket drill when carrying out counter boring technique, are also easy to produce counter boring depth inconsistent the problem of causing workpiece to be unable to satisfy matching requirements.A kind of counter boring limiting device, including counter boring limiting device ontology, the counter boring limiting device ontology is divide into upper part and lower part, the top half of the counter boring limiting device ontology is smaller diameter end, the lower half portion of the counter boring limiting device ontology is larger diameter end, the overhead surface of the smaller diameter end is rear end face, and the underlying surfaces of the larger diameter end are front end face, and the middle contact of the smaller diameter end and larger diameter end is step surface.

Description

A kind of counter boring limiting device

Technical field

The utility model belongs to technical field of mechanical processing, more particularly to a kind of counter boring limiting device.

Background technique

Threaded connection be it is a kind of it is widely used removably is fixedly connected, have structure is simple, connection reliably, assembly and disassembly side Just the advantages that.Traditional thread measurement method is to carry out contact using external thread gauge or carried out using universal tool-measuring microscope artificial The low of efficiency rule is imitated in measurement, heavy workload, work, and measurement result is vulnerable to man's activity.Rivet (English name riveting) i.e. riveting Nail connection is a mechanical vocabulary, is using axial force that nail rod in part rivet hole is upset and forms ailhead, make multiple parts The method being connected.

In technical field of mechanical processing, especially aviation field, due to pursuing the smooth of workpiece configurations, in order to reduce By windage, being spirally connected or riveting for most of aeronautical products mostly uses sunk screw or sunk head rivet, so carrying out counter boring to product Technique is essential, and the quality of counter boring quality is directly related to the quality that product is spirally connected or rivets.Counter boring be one it is common plus Work technique, the primary connection for sunk screw or sunk head rivet, the consistency of counter boring depth directly reflect assembly product Quality.Therefore, it develops one kind to be mainly used for controlling counter boring depth, and can guarantee the counter boring limit dress of counter boring depth consistency It sets, becomes the key for solving the problems, such as counter boring quality and depth consistency.

Utility model content

In order to overcome above-mentioned technical deficiency, the utility model provides a kind of counter boring limiting device, solves existing socket drill When carrying out counter boring technique, it is also easy to produce counter boring depth inconsistent the problem of causing workpiece to be unable to satisfy matching requirements.

The utility model to achieve the goals above, specifically uses following technical scheme:

A kind of counter boring limiting device, including counter boring limiting device ontology, counter boring limiting device ontology use beryllium-bronze material, The friction that counter boring limiting device ontology and workpiece can be reduced, prevents plowing from workpiece surface, maintains the planarization of workpiece.It is described Counter boring limiting device ontology be divide into upper part and lower part, the top half of the counter boring limiting device ontology is smaller diameter end, small Diameter end is contacted with drill jig when in use and is arranged inside it, and the internal sleeve of smaller diameter end is equipped with socket drill.The ream The lower half portion of nest limiting device ontology is larger diameter end, and the overhead surface of the smaller diameter end is rear end face, and described is big The underlying surfaces of diameter end are front end face, and front end face is contacted with the socket drill boss of socket drill, play supporting role, described is small The middle contact of diameter end and larger diameter end is step surface, step surface and the drill jig front end face phase on drill jig in application Contact.

Further, front end face is contacted with workpiece to be processed, and the structure of front end face is annular and big surface area contact surface, Principle by increasing surface area reduces counter boring limiting device ontology to the wear damage on workpiece to be processed surface.

Further, there are four chip removal notches for setting in larger diameter end, can be used in counter boring technical process to generation Metal debris is discharged to that counter boring limiting device sheet is external, in order to avoid influence the machining accuracy and other relevant operations of workpiece.

Further, front end face is contacted with the socket drill boss on socket drill, and the diameter of socket drill boss is greater than front end face Outer diameter, the front end face contact of socket drill boss and counter boring limiting device ontology so that socket drill boss support rise counter boring limit Device noumenon prevents counter boring limiting device ontology from falling.

Further, smaller diameter end is sheathed on the inside of drill chuck, since the internal sleeve of smaller diameter end is equipped with socket drill, makes It obtains socket drill and socket drill limit ontology is sheathed in drill chuck together, simple and reasonable, the drill chuck being arranged on drill chuck Front end face and step face contact, which are formed, to be limited, to control the downward storke of socket drill, so as to control socket drill to workpiece Counter boring depth ensure that the consistency to workpiece counter boring depth.

The working principle of the utility model are as follows:

The use of the utility model mainly utilizes socket drill boss and drill chuck front end face on socket drill to limit with counter boring Counter boring limiting device is installed on socket drill by the fixation that is engaged of position device in use, the diameter of socket drill boss Greater than the diameter of the larger diameter end of counter boring limiting device, the front end face contact of socket drill boss and socket drill limiting device, so that Socket drill boss support plays socket drill limiting device, prevents counter boring limiting device from falling.Subsequent staff can be by socket drill It is commonly mounted in drill chuck with counter boring limiting device, the drill chuck front end face of drill chuck can resist counter boring limiting device at this time Step surface.Subsequent staff adjusts installation site of the counter boring drill bit in drill chuck, is limited using drill chuck front end face counter boring The limit of the step surface of position device, it is deep to the counter boring of workpiece so as to control socket drill to control the downward storke of socket drill Degree.

The utility model compared with prior art, the utility model has the following beneficial effects:

1, the front end face of the utility model is contacted with workpiece, and annular and big surface area contact surface is designed as in structure, is led to The principle for crossing increase surface area reduces counter boring limiting device to the wear damage of workpiece surface.

2, the utility model uses beryllium-bronze material, it is possible to reduce the friction with workpiece prevents plowing from workpiece surface, keeps The planarization of workpiece.

3, the utility model is designed on main structure face there are four chip removal notches, is used in counter boring technical process to generation Metal debris be discharged to outside device, in order to avoid influence workpiece machining accuracy and other relevant operations.

4, the step surface of the utility model is formed for the variable diameters step inside device, can prevent counter boring limiting device It falls off from drill chuck.

5, the smaller diameter end of the utility model is used for and drill chuck contacts, while cooperating step surface and drill chuck front end face The position-limiting action generated is contacted, to play restriction effect to the downward storke of socket drill, so that counter boring depth is controlled well, It ensure that the consistency to workpiece counter boring depth.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the three dimensional structure diagram of the utility model；

Fig. 3 is the assembling structure schematic diagram of the utility model.

Appended drawing reference: 1, counter boring limiting device ontology, 2, rear end face, 3, smaller diameter end, 4, step surface, 5, larger diameter end, 6, chip removal notches, 7, front end face, 8, socket drill, 801, socket drill boss.9, drill chuck, 901, drill chuck front end face.

Specific embodiment

In order to which those skilled in the art better understand the utility model, with reference to the accompanying drawing with following embodiment to this Utility model is described in further detail.

Embodiment 1: as shown in figures 1 and 3, example provides a kind of counter boring limiting device, including counter boring limiting device ontology 1, Counter boring limiting device ontology 1 uses beryllium-bronze material, it is possible to reduce the friction of counter boring limiting device ontology 1 and workpiece avoids drawing Hurt workpiece surface, maintains the planarization of workpiece.The counter boring limiting device ontology 1 is divide into upper part and lower part, the counter boring The top half of limiting device ontology 1 is smaller diameter end 3, and smaller diameter end 3 contacts with drill jig 9 when in use and is set in it The internal sleeve of inside, smaller diameter end 3 is equipped with socket drill 8.The lower half portion of the counter boring limiting device ontology 1 is larger diameter end 5, The overhead surface of the smaller diameter end 3 is rear end face 2, and the underlying surfaces of the larger diameter end 5 are front end face 7, front end face 7 It is contacted with the socket drill boss 801 of socket drill 8, plays supporting role, in the smaller diameter end 3 and larger diameter end 5 indirectly Contacting surface is step surface 4, and in application, step surface 4 is in contact with the drill jig front end face 901 on drill jig 9.

Embodiment 2: as shown in Figure 1, this implementation is to advanced optimize on the basis of embodiment 1, the present embodiment emphasis is explained Improvements compared with Example 1 are stated, something in common repeats no more, and the front end face 7 is contacted with workpiece to be processed, described The structure of front end face 7 is annular and big surface area contact surface, and the principle by increasing surface area reduces counter boring limiting device Wear damage of the ontology 1 to workpiece to be processed surface.

Embodiment 3: as shown in Figure 1 to Figure 2, this implementation is to advanced optimize on the basis of embodiment 1, the present embodiment weight Point illustrates improvements compared with Example 1, and something in common repeats no more, and there are four rows for setting in the larger diameter end 5 It considers notch 6 to be worth doing, can be used in counter boring technical process being discharged to outside counter boring limiting device ontology 1 metal debris of generation, in order to avoid Influence the machining accuracy and other relevant operations of workpiece.

Embodiment 4: as shown in Figure 1 to Figure 3, this implementation is to advanced optimize on the basis of embodiment 1, the present embodiment weight Point illustrates improvements compared with Example 1, and something in common repeats no more, the counter boring on the front end face 7 and socket drill 8 It bores boss 801 to contact, the diameter of the socket drill boss 801 is greater than the outer diameter of front end face 7, and socket drill boss 801 and counter boring limit The front end face 7 of position device noumenon 1 contacts, so that 801 support of socket drill boss plays counter boring limiting device ontology 1, prevents counter boring from limiting Position device noumenon 1 is fallen.

Embodiment 5: as shown in figure 3, this implementation is to advanced optimize on the basis of embodiment 1, the present embodiment emphasis is explained Improvements compared with Example 1 are stated, something in common repeats no more, and the smaller diameter end 3 is sheathed on the interior of drill chuck 9 Portion, since the internal sleeve of smaller diameter end 3 is equipped with socket drill 8, so that socket drill 8 and socket drill limit ontology 1 are sheathed on brill together Simple and reasonable in collet, the drill chuck front end face 901 being arranged on drill chuck 9 contacts formation limit with step surface 4, to control The downward storke of socket drill 8 processed ensure that so as to control socket drill 8 to the counter boring depth of workpiece to workpiece counter boring depth Consistency.

The working principle of the utility model are as follows:

The use of the utility model be mainly utilize socket drill boss 801 on socket drill 8 and drill chuck front end face 901 with Counter boring limiting device ontology 1 is installed to socket drill 8 in use by the fixation that is engaged of counter boring limiting device ontology 1 On, the diameter of socket drill boss 801 is greater than the diameter of the larger diameter end 5 of counter boring limiting device ontology 1, socket drill boss 801 with The front end face 7 of counter boring limiting device ontology 1 contacts, so that 801 support of socket drill boss plays counter boring limiting device ontology 1, prevents Counter boring limiting device ontology 1 is fallen.Socket drill 8 and counter boring limiting device ontology 1 can be commonly mounted on by subsequent staff In drill chuck 9, the drill chuck front end face 901 of drill chuck 9 can resist the step surface 4 of counter boring limiting device ontology 1 at this time.Subsequent work Make personnel and adjust installation site of the counter boring drill bit 8 in drill chuck 9, using drill chuck front end face 901 to counter boring limiting device sheet The limit of the step surface 4 of body 1, it is deep to the counter boring of workpiece so as to control socket drill 8 to control the downward storke of socket drill 8 Degree.

The above, the only preferred embodiment of the utility model, are not intended to limit the utility model, the utility model Scope of patent protection be subject to claims, it is equivalent made by all specifications and accompanying drawing content with the utility model Structure change similarly should be included in the protection scope of the utility model.

Claims (6)

1. a kind of counter boring limiting device, including counter boring limiting device ontology (1), which is characterized in that the counter boring limiting device Ontology (1) is divide into upper part and lower part, and the top half of the counter boring limiting device ontology (1) is smaller diameter end (3), the counter boring The lower half portion of limiting device ontology (1) is larger diameter end (5), and the overhead surface of the smaller diameter end (3) is rear end face (2), the underlying surfaces of the larger diameter end (5) are front end face (7), in the smaller diameter end (3) and larger diameter end (5) Between contact surface be step surface (4).

2. counter boring limiting device according to claim 1, which is characterized in that the counter boring limiting device ontology (1) is adopted Use beryllium-bronze material.

3. counter boring limiting device according to claim 1, which is characterized in that the front end face (7) and workpiece to be processed Contact, the structure of the front end face (7) are annular and big surface area contact surface.

4. counter boring limiting device according to claim 1, which is characterized in that be provided with four in the larger diameter end (5) A chip removal notches (6).

5. counter boring limiting device according to claim 1, which is characterized in that on the front end face (7) and socket drill (8) Socket drill boss (801) contact, the diameter of the socket drill boss (801) is greater than the outer diameter of front end face (7).

6. counter boring limiting device according to claim 1, which is characterized in that the smaller diameter end (3) is sheathed on drill point The inside of head (9), the drill chuck front end face (901) being arranged on the drill chuck (9) contacts to be formed with step surface (4) and be limited.