CN209918953U - Double-end drill jig - Google Patents

Abstract

The utility model discloses a double-end jig, including frame and fixing device, the concave locating hole that is used for placing the screw of waiting to process that is equipped with of stationary plane of frame, is equipped with the guide post on the stationary plane of frame, and the guide post sets up adjacent with the locating hole, and the quantity of guide post is two, is equipped with the bullport that is used for the drill bit to carry out the drilling diameter direction when waiting to process the screw on the guide post, and two guide posts are located the both sides of the entrance point of locating hole respectively, and the bullport of two guide posts is coaxial to be laid; the fixing device is used for fixing the screw to be processed placed in the positioning hole. The technical scheme of the utility model, when drilling to the part and processing, because the drill bit can pass two bullports respectively and process, reduced the one-way drilling's of drill bit degree of depth, improved the machining precision of part, reduce the rejection rate to improve the life of drill bit, practiced thrift the cost.

Description

Double-end drill jig

Technical Field

The utility model relates to a drilling mold processing technology field especially relates to a double-end jig.

Background

The drill jig is a clamp for guiding a cutter to drill or ream a hole in a workpiece, and prevents the cutter from inclining in the machining process, so that the position precision of the machined position is ensured.

At present, when small holes with the hole diameter of 0.5-1.5 mm are machined in precision screw parts of an aircraft engine, the parts are usually fixed on a drill jig, and then a drill bit penetrates through a guide hole in the drill jig to machine a screw.

SUMMERY OF THE UTILITY MODEL

The utility model provides a double-end jig to solve current jig and when adding man-hour drilling to the screw, cause easily that the brill is inclined to one side, horn mouth and drill bit fracture, damage easily, lead to the technical problem that machining efficiency is low, the machining precision is low and the processing cost is big.

In order to achieve the above object, the utility model adopts the following technical scheme:

a double-head drill jig comprises a machine base and a fixing device, wherein a fixing surface of the machine base is concavely provided with positioning holes for placing screws to be processed, guide columns are arranged on the fixing surface of the machine base and are arranged adjacent to the positioning holes, the number of the guide columns is two, guide holes for drilling and guiding when a drill bit processes the screws to be processed are arranged on the guide columns, the two guide columns are respectively arranged on two sides of the inlet end of the positioning hole, and the guide holes of the two guide columns are coaxially arranged; the fixing device is used for fixing the screw to be processed placed in the positioning hole.

Furthermore, the guide column is concavely provided with a fixing through hole, a guide ring is arranged in the fixing through hole, and a guide hole is formed in the center hole of the guide ring.

Further, the fixing device comprises an axial fixing device and a circumferential fixing device, wherein the axial fixing device is used for axially fixing the screw to be processed placed in the positioning hole, and the circumferential fixing device is used for circumferentially fixing the screw to be processed placed in the positioning hole.

Furthermore, the circumferential fixing device comprises a v-shaped plate and a fastening mechanism, the v-shaped plate is arranged on the fixing surface of the base, the oriented side of the v-shaped plate is arranged towards the direction of the positioning hole, and the fastening mechanism is used for fixing the v-shaped plate on the fixing surface of the base.

Further, fastening device includes fastening block, second spring and baffle, and on the stationary plane of fastening block located the frame, the baffle was located on the side of fastening block kept away from the direction of locating hole, was equipped with groove structure in the direction of the stationary plane of fastening block orientation frame, but the v template axial sliding locates in the groove structure, and in the groove structure was located to the second spring, the first end and the v template butt of second spring, the second end and baffle or groove structure butt of second spring.

Furthermore, the axial fixing device comprises a pressing plate and a first screw rod, a first screw hole is formed in the fixing surface of the base, and the first screw rod penetrates through the pressing plate and is in threaded connection with the first screw hole.

The axial fixing device further comprises a second screw rod, a second screw hole is formed in the fixing surface of the base, the second screw hole is located in one side, away from the positioning hole, of the first screw hole, the threaded end of the second screw rod is in threaded connection with the second screw hole, and the fixing end of the second screw rod is abutted to the pressing plate.

Furthermore, a guide through groove is formed in the pressing plate, and the first screw penetrates through the guide through groove and is in threaded connection with the machine base.

Further, the body of rod surface cover of first screw rod is equipped with first spring, and the first end and the frame butt of first spring, the second end and the clamp plate butt of first spring.

Furthermore, the adjusting end of the first screw rod is provided with an anti-skidding handle.

The utility model discloses following beneficial effect has:

the utility model discloses a double-end jig sets up the guide post respectively through the both sides at the entrance point of locating hole, is equipped with the bullport that is used for drill bit processing to carry out the drill bit direction when treating processing screw on the guide post, and two coaxial laying of bullports. When the screw is drilled, the screw to be machined is placed in the positioning hole, the screw to be machined is fixed through the fixing device, then the drill bit drills the screw through the guide holes in the two sides of the positioning hole, specifically, the drill bit is guided to drill through the guide hole in the first guide column, then when the drilling depth of the drill bit is observed to approximately reach half of the depth of the hole, the double-head drill jig is turned over, the drill bit is guided to work through the guide hole in the second guide column to drill, the screw is prevented from being drilled through only one side of the positioning hole, and therefore the drilling depth of the drill bit in a single direction is reduced; and, because the radial dimension of waiting to bore is only 0.5 millimeter to 2 millimeters, the radial dimension of corresponding drill bit is also very little, through the mode that the double-end jig of upset carries out two-way processing to the screw, thereby avoid the drill bit to carry out long distance and bore and lose guide and control and lead to the drill bit to beat easily and float, the problem that the brill is inclined to one side, form the horn mouth appears easily.

In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:

fig. 1 is a schematic structural view of a screw to be processed according to a preferred embodiment of the present invention;

fig. 2 is a front view of the double-ended jig according to the preferred embodiment of the present invention;

FIG. 3 is a cross-sectional view taken at B-B of the preferred embodiment of the present invention;

FIG. 4 is an enlarged view at C in FIG. 2;

FIG. 5 is an enlarged view at D of FIG. 2;

fig. 6 is a plan view of the double-ended jig according to the preferred embodiment of the present invention.

Illustration of the drawings:

100. drilling a mold at the double ends; 200. a screw to be processed; 10. a machine base; 11. positioning holes; 12. a guide post; 121. a guide hole; 122. a fixing through hole; 123. a guide ring; 13. a first screw hole; 14. a second screw hole; 20. a fixing device; 21. an axial fixing device; 211. pressing a plate; 2111. a guide through groove; 212. a first screw; 2121. an anti-slip handle; 213. a second screw; 214. A first spring; 22. a circumferential fixing device; 221. a v-shaped plate; 222. a fastening mechanism; 2221. a fastening block; 2222. a second spring; 2223. a baffle plate; 2224. and (4) a groove structure.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways, which are defined and covered below.

Fig. 1 is a schematic structural view of a screw to be processed according to a preferred embodiment of the present invention; fig. 2 is a front view of the double-ended jig according to the preferred embodiment of the present invention; FIG. 3 is a cross-sectional view taken at B-B of the preferred embodiment of the present invention; FIG. 4 is an enlarged view at C in FIG. 2; FIG. 5 is an enlarged view at D of FIG. 2; fig. 6 is a plan view of the double-ended jig according to the preferred embodiment of the present invention.

As shown in fig. 1, 2, 3, 4, 5 and 6, the double-ended jig 100 of the present embodiment includes a machine base 10 and a fixing device 20, a fixing surface of the machine base 10 is concavely provided with a positioning hole 11 for placing a screw 200 to be processed, a fixing surface of the machine base 10 is provided with two guiding columns 12, the guiding columns 12 are arranged adjacent to the positioning hole 11, the number of the guiding columns 12 is two, the guiding columns 12 are provided with guiding holes 121 for drilling and guiding when a drill bit processes the screw 200 to be processed, the two guiding columns 12 are respectively arranged at two sides of an inlet end of the positioning hole 11, and the guiding holes 121 of the two guiding columns 12 are coaxially arranged; the fixing device 20 is used for fixing the screw 200 to be processed placed in the positioning hole 11.

The utility model discloses a double-end jig 100 sets up guide post 12 respectively through the both sides at the entrance point of locating hole 11, is equipped with the bullport 121 that is used for drill bit processing to carry out the drill bit direction when treating processing screw 200 on the guide post 12, and two bullports 121 are coaxial to be laid. When the screw is drilled, the screw 200 to be machined is placed in the positioning hole 11, the screw 200 to be machined is fixed through the fixing device 20, then the drill bit drills the screw through the guide holes 121 on the two sides of the positioning hole 11, specifically, the drill bit is guided to drill through the guide hole 121 on the first guide column 12, then when the drilling depth of the drill bit is observed to be approximately half of the depth of the hole, the double-head drill jig 100 is turned over, the drill bit is guided to work through the guide hole 121 on the second guide column 12 to drill, the screw is prevented from being drilled through only one side of the positioning hole 11, and therefore the drilling depth of the drill bit in a single direction is reduced; and, because the radial dimension of waiting to bore is only 0.5 millimeter to 2 millimeters, the radial dimension of corresponding drill bit is also very little, through the mode that upset double-end jig 100 carried out two-way processing to the screw, thereby avoid the drill bit to carry out long distance and bore and lose guide and control and lead to the drill bit to beat easily and float, the problem that appears boring partially, form the horn mouth easily.

It is understood that, in the present embodiment, the guiding column 12 and the base 10 may be integrally formed, and the guiding column 12 may also be fixed on the fixing surface of the base 10 by welding, screwing, or the like. The fixing device 20 may be provided separately from the base 10, and the fixing device 20 may be a fixing tool such as a pressing plate 211, a fixing clip, a butting tool, a pushing tool, or a pulling tool, as long as the screw 200 to be processed placed in the positioning hole 11 can be fixed by the fixing device 20.

Furthermore, a fixing through hole 122 is concavely formed on the guide column 12, a guide ring 123 is arranged in the fixing through hole 122, and the guide hole 121 is formed in the center hole of the guide ring 123. It should be understood that the outer shape of the guide ring 123 may be a cylindrical outer shape, or may be an outer shape of other shapes such as a rectangular parallelepiped or a square, as long as the guide ring 123 is fixed in the fixed through hole 122 in a matching manner, and the drill drills the part by the guiding action of the guide hole 121 on the guide ring 123. By arranging the fixing through hole 122 and the guide ring 123, when the guide hole 121 is damaged, the guide ring 123 can be directly replaced, the double-ended drill jig 100 is prevented from being replaced again to drill and fix the screw when the guide hole 121 is damaged, and the cost is saved; in addition, since the guide holes 121 with different sizes can be formed in different guide rings 123, when hole processing with different hole diameters is performed, other guide rings 123 matched with the outer diameter of the drill can be arranged in the fixed through hole 122, and the application range of the double-ended drill jig 100 is expanded.

Further, the fixing device 20 includes an axial fixing device 21 and a circumferential fixing device 22, wherein the axial fixing device 21 is used for axially fixing the screw 200 to be processed placed in the positioning hole 11, and the circumferential fixing device 22 is used for circumferentially fixing the screw 200 to be processed placed in the positioning hole 11. It can be understood that, in the present embodiment, the axial fixing device 21 and the circumferential fixing device 22 are respectively disposed on the fixing surface of the base 10, and the axial fixing device 21 and the circumferential fixing device 22 are respectively disposed on two sides of the positioning hole 11; specifically, the axial fixing device 21 and the circumferential fixing device 22 are respectively disposed on two sides of the radial axis of the positioning hole 11. In other embodiments, the axial fixing device 21 or the circumferential fixing device 22 may be disposed on other surfaces of the housing 10, and may be in the form of a hoop, a clamp, or the like, only requiring the force application end to act on the component. The mode of fixing through axial fixing device 21 and circumference fixing device 22 is adopted, when fixing the screw, axial fixing and circumference fixing of the screw can be separately carried out, at first, angle fixing is carried out on the screw through circumference fixing device 22, the screw is prevented from rotating during processing, then, axial fixing is carried out on the screw through axial fixing device 21, the screw is prevented from moving during drilling processing, deviation is avoided during drilling, and drilling precision is guaranteed.

Further, the circumferential fixing device 22 includes a v-shaped plate 221 and a fastening mechanism 222, the v-shaped plate 221 is disposed on the fixing surface of the machine base 10, the oriented side of the v-shaped plate 221 is disposed toward the direction of the positioning hole 11, and the fastening mechanism 222 is used for fixing the v-shaped plate 221 on the fixing surface of the machine base 10. It can be understood that the oriented side of the v-shaped plate 221 has a v-shaped opening, the v-shaped opening matches with the angle formed by two adjacent sides of the butt end of the screw 200 to be processed, and the v-shaped opening contacts with the butt end of the screw to be processed, so as to fix the angle of the screw 200 to be processed.

Further, the fastening mechanism 222 includes a fastening block 2221, a second spring 2222, and a stop plate 2223, wherein the fastening block 2221 is disposed on the fixing surface of the base 10, the stop plate 2223 is disposed on the side surface of the fastening block 2221 facing away from the positioning hole 11, a groove structure 2224 is disposed in the direction of the fastening block 2221 facing the fixing surface of the base 10, the v-shaped plate 221 is axially slidably disposed in the groove structure 2224, the second spring 2222 is disposed in the groove structure 2224, a first end of the second spring 2222 abuts against the v-shaped plate 221, and a second end of the second spring 2222 abuts against the stop plate 2223 or the groove structure 2224. It can be understood that, in the present embodiment, the second end of the second spring 2222 abuts against the stop plate 2223, a fixing hole may be formed on the fastening block 2221, and a positioning pin passes through the fixing hole to fix the fastening block 2221 on the fixing surface of the base 10, and in another embodiment, the fastening block 2221 may be further fixed on the fixing surface of the base 10 by a screw fixing method. Specifically, by arranging the groove structure 2224 and arranging the second spring 2222 and the v-shaped plate 221 in the groove structure 2224, the v-shaped plate 221 can axially move to fix the angle of the screw, so that the v-shaped block is prevented from swinging up and down after the angle is fixed, and the accuracy of fixing the angle of the screw is improved; moreover, the second spring 2222 is arranged to abut against the v-shaped plate 221 and the baffle 2223 respectively, so that the v-shaped plate 221 is pressed against the butt end of the screw in the positioning hole 11 by the elastic force of the second spring 2222, and the angle fixation of the screw is completed. Further, the axial fixing device 21 includes a pressing plate 211 and a first screw 212, a first screw hole 13 is provided on the fixing surface of the base 10, and the first screw 212 penetrates through the pressing plate 211 and is in threaded connection with the first screw hole 13. After the bolt to be processed is positioned angularly, the pressing plate 211 is pressed against the bolt 200 to be processed for axial fixation by screwing the first bolt, and the structure is simple and the operation is convenient.

Further, the axial fixing device 21 further includes a second screw 213, a second screw hole 14 is disposed on the fixing surface of the base 10, the second screw hole 14 is located on a side of the first screw hole 13 away from the positioning hole 11, a threaded end of the second screw 213 is in threaded connection with the second screw hole 14, and a fixing end of the second screw 213 is abutted to the pressing plate 211. It can be understood that the side of the pressing plate 211 away from the positioning hole 11 is supported by the second screw rod 213, and the screw to be processed is further fastened and fixed by cooperating with the first screw rod 212.

Further, a guiding through slot 2111 is provided on the pressing plate 211, and the first screw 212 passes through the guiding through slot 2111 and is in threaded connection with the base 10. It is to be understood that, in the present embodiment, the shape of the guiding slot 2111 is an ellipse, and in other embodiments, the shape of the guiding slot 2111 may be another shape such as a rectangle, as long as the first screw 212 is slidably disposed relative to the guiding slot 2111. Through setting up the groove 2111 of leading through groove, when treating the screw of processing and fixing axially, only need unscrew first screw rod 212, move clamp plate 211 towards the direction of locating hole 11 and push down and treat processing screw 200, then carry out axial fixity, prevent to need at first dismantle convenient operation to fixing device 20 when treating the bolt of processing and fixing.

Further, the first spring 214 is sleeved on the surface of the rod body of the first screw 212, a first end of the first spring 214 abuts against the base 10, and a second end of the first spring 214 abuts against the pressing plate 211. The vibration force of the drill is buffered by the elastic force of the first spring 214 when the screw is machined.

Further, the adjusting end of the first screw 212 is provided with an anti-slip grip 2121. It will be appreciated that the surface of the anti-slip grip 2121 is provided with anti-slip protrusions. The screw can be axially fixed or disassembled, and the anti-skid handle 2121 is turned by hand to screw or unscrew the second screw rod 213, so that the operation is convenient.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A double-head drill jig comprises a machine base (10) and a fixing device (20), wherein a fixing surface of the machine base (10) is concavely provided with a positioning hole (11) for placing a screw (200) to be processed, a guide column (12) is arranged on the fixing surface of the machine base (10), the guide column (12) is arranged adjacent to the positioning hole (11), and the double-head drill jig is characterized in that,

the number of the guide columns (12) is two, guide holes (121) for drilling and guiding when a drill bit processes a screw (200) to be processed are formed in the guide columns (12), the two guide columns (12) are respectively arranged on two sides of the inlet end of the positioning hole (11), and the guide holes (121) of the two guide columns (12) are coaxially arranged;

the fixing device (20) is used for fixing the screw (200) to be processed placed in the positioning hole (11).

2. The double-ended jig according to claim 1,

the guide post (12) is concavely provided with a fixing through hole (122), a guide ring (123) is arranged in the fixing through hole (122), and the guide hole (121) is formed in the center hole of the guide ring (123).

3. The double-ended jig according to claim 2,

the fixing device (20) comprises an axial fixing device (21) and a circumferential fixing device (22), wherein the axial fixing device (21) is used for axially fixing the screw (200) to be machined placed in the positioning hole (11), and the circumferential fixing device (22) is used for circumferentially fixing the screw (200) to be machined placed in the positioning hole (11).

4. The double-ended jig according to claim 3,

the circumferential fixing device (22) comprises a v-shaped plate (221) and a fastening mechanism (222), the v-shaped plate (221) is arranged on a fixing surface of the machine base (10), the oriented side of the v-shaped plate (221) faces to the direction of the positioning hole (11), and the fastening mechanism (222) is used for fixing the v-shaped plate (221) on the fixing surface of the machine base (10).

5. The double-ended jig according to claim 4,

the fastening mechanism (222) comprises a fastening block (2221), a second spring (2222) and a baffle plate (2223), the fastening block (2221) is arranged on the fixing surface of the base (10), the baffle plate (2223) is arranged on the side surface of the fastening block (2221) far away from the direction of the positioning hole (11), a groove structure (2224) is arranged in the direction of the fixing surface of the base (10) towards the fastening block (2221), the v-shaped plate (221) is axially and slidably arranged in the groove structure (2224), the second spring (2222) is arranged in the groove structure (2224), the first end of the second spring (2222) is abutted against the v-shaped plate (221), and the second end of the second spring (2222) is abutted against the baffle plate (2223) or the groove structure (2224).

6. The double-ended jig according to any one of claims 3 to 5,

the axial fixing device (21) comprises a pressing plate (211) and a first screw rod (212), a first screw hole (13) is formed in the fixing surface of the machine base (10), and the first screw rod (212) penetrates through the pressing plate (211) and is in threaded connection with the first screw hole (13).

7. The double-ended jig according to claim 6,

axial fixity device (21) still includes second screw rod (213), be equipped with second screw (14) on the stationary plane of frame (10), second screw (14) are in first screw (13) are kept away from one side of locating hole (11), the screw thread end of second screw rod (213) with second screw (14) threaded connection, the stiff end of second screw rod (213) with clamp plate (211) butt.

8. The double-ended jig according to claim 7,

the pressing plate (211) is provided with a guide through groove (2111), and the first screw (212) penetrates through the guide through groove (2111) and is in threaded connection with the machine base (10).

9. The double-ended jig according to claim 8,

the surface of the rod body of the first screw rod (212) is sleeved with a first spring (214), the first end of the first spring (214) is abutted to the base (10), and the second end of the first spring (214) is abutted to the pressing plate (211).

10. The double-ended jig according to claim 9,

an anti-skidding handle (2121) is arranged at the adjusting end of the first screw rod (212).

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