CN212793196U

CN212793196U - Drill jig

Info

Publication number: CN212793196U
Application number: CN202021557207.6U
Authority: CN
Inventors: 诸培红; 诸定振; 诸荣平
Original assignee: Nanjing Zhongde Machinery Manufacture Co ltd
Current assignee: Nanjing Zhongde Machinery Manufacture Co ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-03-26
Anticipated expiration: 2030-07-30

Abstract

The utility model provides a drill jig, which comprises a base, a clamping seat and a pressing mechanism, wherein the clamping seat can be respectively matched with the base and the pressing mechanism to fix two workpieces, the two workpieces are arranged in a row from top to bottom, and a drill bit can alternately drill the two workpieces; the top surface of the base is provided with a first positioning groove, the clamping seat is arranged on the base in a lifting manner, the bottom surface of the clamping seat is provided with a second positioning groove, and the first positioning groove and the second positioning groove are matched to fix a workpiece; the top surface of clamping seat is equipped with the third constant head tank, and hold-down mechanism includes portal form support frame and installs the compressing cylinder on the crossbeam of support frame vertically, and the support frame is installed on the clamping seat, installs first clamp plate on the piston rod of compressing cylinder, and compressing cylinder can drive first clamp plate and descend and compress tightly the work piece that is located the third constant head tank. The utility model discloses can solve drill jig to single clamping of work piece, drilling, lead to the lower problem of operating efficiency.

Description

Drill jig

Technical Field

The utility model belongs to the technical field of mechanical equipment, concretely relates to drill jig.

Background

The drill machine is a machine tool for drilling a workpiece by using a drill bit, and the drill machine mainly moves by the rotation of the drill bit and axially moves by the feeding motion to drill a through hole or a blind hole. When the drilling machine is used for machining, a workpiece needs to be fixed by using a clamp, the number of the drill bits of a common drilling machine is limited to only one, and therefore the universal drilling machine clamp is used for clamping and drilling the workpiece singly, so that the working efficiency is low. In addition, for cylindrical workpieces, vibration during drilling causes a tendency to spin, thereby applying resistance to the rotating drill bit, affecting drilling accuracy, and reducing the service life of the drill bit to some extent.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a drill jig to solving drill jig to single clamping of work piece, drilling, leading to the lower problem of operating efficiency.

The utility model provides a following technical scheme:

a drill jig comprises a base, a clamping seat and a pressing mechanism, wherein the clamping seat can be respectively matched with the base and the pressing mechanism to fix two workpieces, the two workpieces are arranged in a vertical row, and a drill bit can alternately drill the two workpieces; the top surface of the base is provided with a first positioning groove, the clamping seat is arranged on the base in a lifting manner, the bottom surface of the clamping seat is provided with a second positioning groove, and the first positioning groove and the second positioning groove are matched to fix a workpiece at the same time; the top surface of the clamping seat is provided with a third positioning groove, the pressing mechanism comprises a gantry-shaped support frame and a pressing cylinder vertically installed on a cross beam of the support frame, the support frame is installed on the clamping seat, a first pressing plate is installed on a piston rod of the pressing cylinder, and the pressing cylinder can drive the first pressing plate to move downwards to press a workpiece located in the third positioning groove.

Furthermore, the workpiece is cylindrical, two auxiliary pressing pieces which are inclined relatively are further mounted on the support frame, each auxiliary pressing piece comprises a pressing rod and an arc-shaped second pressing plate hinged to the end portion of the corresponding pressing rod, at least two compression springs are further mounted on the pressing rods, the end portions of the two compression springs are respectively mounted on the left side and the right side of the second pressing plate in an inclined mode, and the compression springs can tightly press the second pressing plates on the shoulder portions of the workpiece.

Preferably, horizontal guide grooves are respectively formed in the front side wall and the rear side wall of the clamping seat, guide protrusions matched with the guide grooves are arranged at the bottom of the supporting frame, and the guide protrusions can move along the guide grooves.

Preferably, at least two support frames are arranged on the clamping seat at intervals.

Further, install cylinder support on the base, the horizontal roof of cylinder support's top installation, the bottom surface installation lift cylinder of roof, install the connecting plate on the piston rod of lift cylinder, the connecting plate is fixed in on the flange terminal surface of clamping seat bottom, lift cylinder can rise clamping seat makes clamping seat with the base is separated.

Furthermore, an upright limiting baffle is arranged at the drilling end of the workpiece on the base, and the limiting baffle can block the front end surfaces of the two workpieces to be drilled.

The utility model has the advantages that: the utility model discloses top surface and the bottom surface at the clamping seat are equipped with third constant head tank and second constant head tank respectively, and they cooperate with hold-down mechanism and base respectively and can compress tightly two work pieces from top to bottom, can utilize a drill bit successively to two work pieces drilling, when a work piece in drilling, another work piece of clamping reduces and waits man-hour, has improved machining efficiency.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic front view of the present invention;

fig. 2 is a schematic sectional view of a-a in fig. 1 according to the present invention;

fig. 3 is a schematic sectional view of the structure of fig. 1B-B according to the present invention;

labeled as: 1. a base; 2. installing a clamping seat; 3. a workpiece; 4. a first positioning groove; 5. a second positioning groove; 6. a third positioning groove; 7. a support frame; 8. a pressing cylinder; 9. a first platen; 10. an auxiliary pressing member; 11. a pressure lever; 12. a second platen; 13. a compression spring; 14. a guide groove; 15. a guide projection; 16. a cylinder support; 17. a top plate; 18. a connecting plate; 19. a flange end face; 20. a limit baffle; 21. a drill bit; 22. and a lifting cylinder.

Detailed Description

As shown in fig. 1 to 3, a drill jig for clamping two cylindrical workpieces during drilling operation comprises a base 1, a clamping seat 2 and a pressing mechanism, wherein the clamping seat 2 can be respectively matched with the base 1 and the pressing mechanism to fix the two workpieces, the two workpieces are arranged in a row up and down, and a drill 21 can alternately drill the two workpieces.

As shown in fig. 2, the top surface of the base 1 is provided with a first positioning groove 4, the clamping base 2 is installed on the base 1 in a liftable manner, the bottom surface of the clamping base 2 is provided with a second positioning groove 5, and the first positioning groove 4 and the second positioning groove 5 are matched to fix the workpiece 3 on the lower side at the same time. The top surface of clamping seat 2 is equipped with third constant head tank 6, and hold-down mechanism includes portal support frame 7 and installs the compressing cylinder 8 on the crossbeam of support frame 7 vertically, and support frame 7 installs on clamping seat 2, installs first clamp plate 9 on compressing cylinder 8's the piston rod, and compressing cylinder 8 can drive first clamp plate 9 and descend and compress tightly the work piece that is located third constant head tank 6.

The workpiece 3 is cylindrical, two relatively inclined auxiliary pressing pieces 10 are further mounted on the support frame 7, each auxiliary pressing piece 10 comprises a pressing rod 11 and an arc-shaped second pressing plate 12 hinged to the end portion of the corresponding pressing rod 11, and the second pressing plates 12 can slightly rotate, so that the workpiece 3 is not easily blocked by the second pressing plates 12 and is difficult to move forwards during feeding and discharging, and smooth feeding and discharging are facilitated. The compression rod 11 is further provided with at least two compression springs 13, the end parts of the two compression springs 13 are respectively and obliquely arranged on the left side and the right side of the second pressure plate 12, and the compression springs 13 can press the second pressure plate 12 on the shoulder part of the workpiece 3 to prevent the workpiece 3 from rotating during drilling.

As shown in fig. 1, at least two support frames 7 are installed on the clamping base 2 at intervals to increase the pressing force on the workpiece. Horizontal guide grooves 14 are respectively formed in the front side wall and the rear side wall of the clamping seat 2, guide protrusions 15 matched with the guide grooves 14 are arranged at the bottom of the supporting frame 7, and the guide protrusions 15 can move along the guide grooves 14, so that the clamping position of the supporting frame 7 on the clamping seat 2 can be adjusted to adapt to clamping of workpieces with different lengths.

As shown in fig. 2 and 3, a cylinder support 16 is mounted on a base 1, a horizontal top plate 17 is mounted at the top of the cylinder support 16, a lifting cylinder 22 is mounted at the bottom surface of the top plate 17, a connecting plate 18 is mounted on a piston rod of the lifting cylinder 22, the connecting plate 18 is fixed on a flange end surface 19 at the bottom of a clamping seat 2, when a workpiece on the lower side is loaded and unloaded, the lifting cylinder 22 is started, the lifting cylinder lifts the clamping seat 2 to separate the clamping seat 2 from the base 1, the workpiece is placed into a gap between the clamping seat 2 and the base 1 and is pushed forward to a position suitable for drilling, and then the lifting cylinder 22 lowers the clamping seat 2 to tightly press the workpiece on the base 1.

As shown in fig. 1, an upright limiting baffle 20 is installed at the drilling end of a workpiece on a base 1, and the limiting baffle 20 can block the front end surfaces of two workpieces to be drilled, so that the workpieces can be quickly positioned, and the machining efficiency is improved.

The utility model discloses a theory of operation does:

when the workpiece on the lower side is fed, the lifting cylinder 22 is started to lift the clamping seat 2, the workpiece 3 is placed between the first positioning groove 4 and the second positioning groove 5 and is pushed forwards to the position of the limiting baffle 20, then the lifting cylinder 22 lowers the clamping seat 2, the clamping seat 2 compresses the workpiece 3, and the drilling machine is started to enable the drill bit 21 to drill the workpiece downwards.

When the downside work piece was drilled, the manual work stretched the work piece of upside into in the third constant head tank 6 at clamping seat top, and passed a section distance forward, waited the work piece of downside to bore the hole after, pushed upside work piece to limit baffle 20 department, started to compress tightly cylinder 8 and descend and compress tightly this work piece, drill bit 21 was to this work piece drilling.

After the upper workpiece is drilled, the lifting cylinder 22 lifts the clamping seat 2, the lower workpiece is manually blanked, and meanwhile, the pressing cylinder 8 lifts the first pressing rod to blank the upper workpiece.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. 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

1. A drill jig is characterized by comprising a base, a clamping seat and a pressing mechanism, wherein the clamping seat can be respectively matched with the base and the pressing mechanism to fix an upper workpiece and a lower workpiece, and a drill bit can alternately drill the two workpieces; the top surface of the base is provided with a first positioning groove, the clamping seat is arranged on the base in a lifting manner, the bottom surface of the clamping seat is provided with a second positioning groove, and the first positioning groove and the second positioning groove are matched to fix a workpiece on the lower side at the same time; the top surface of the clamping seat is provided with a third positioning groove, the pressing mechanism comprises a gantry-shaped support frame and a pressing cylinder vertically installed on a cross beam of the support frame, the support frame is installed on the clamping seat, a first pressing plate is installed on a piston rod of the pressing cylinder, and the pressing cylinder can drive the first pressing plate to move downwards to press a workpiece located in the third positioning groove.

2. The drilling machine fixture as claimed in claim 1, wherein the workpiece is cylindrical, the support frame is further provided with two auxiliary pressing members inclined relative to each other, each auxiliary pressing member comprises a pressing rod and an arc-shaped second pressing plate hinged to an end of the pressing rod, the pressing rod is further provided with at least two compression springs, ends of the two compression springs are obliquely arranged on the left side and the right side of the second pressing plate respectively, and the compression springs can press the second pressing plate against the shoulder of the workpiece.

3. The drill jig according to claim 2, wherein horizontal guide grooves are respectively formed in the front side wall and the rear side wall of the clamping seat, and a guide protrusion matched with the guide grooves is formed in the bottom of the support frame and can move along the guide grooves.

4. The drill press fixture of claim 3, wherein at least two of the support brackets are mounted to the clamping base at spaced intervals.

5. The drilling machine fixture as claimed in any one of claims 1 to 4, wherein a cylinder support is mounted on the base, a horizontal top plate is mounted on the top of the cylinder support, a lifting cylinder is mounted on the bottom surface of the top plate, a connecting plate is mounted on a piston rod of the lifting cylinder, the connecting plate is fixed on a flange end face of the bottom of the clamping seat, and the lifting cylinder can lift the clamping seat to separate the clamping seat from the base.

6. The drill jig according to any one of claims 1 to 4, wherein the base is provided with an upright limit baffle at the drilling end of the workpiece, and the limit baffle can block the front end surfaces of two workpieces to be drilled.