CN208033723U - Ring flange boring grab - Google Patents

Abstract

The utility model provides a kind of ring flange boring grab, belongs to machine tool technology field.It solves the problems, such as existing ring flange drilling low production efficiency.This ring flange boring grab includes pedestal, top plate and workpiece placing table, and top plate is located at the top of workpiece placing table, and top plate is fixedly connected with pedestal, and multiple drill bushings are equipped on top plate；Pressing plate is equipped between top plate and workpiece placing table, pressing plate is mounted on the base；It is connected by rack and pinion assembly between work placing table and pedestal, handle is installed on gear.Workpiece is placed in workpiece placing table, so that workpiece placing table is ramped up by pulling handle, and then pressing plate and workpiece placing table is forced to clamp workpiece.Multiple holes just can be processed simultaneously by manipulating drilling machine, i.e., all holes can process at one time on ring flange.

Description

Flange drilling jig

technical field

The utility model belongs to the technical field of machine tools and relates to a fixture, in particular to a flange drilling fixture.

Background technique

The flange is a common part. As shown in Figure 3, the part is a part of a horizontal lathe, that is, the gearbox of the lathe is fixed on the headstock, centered by the flange, and the middle of the inner hole of the flange and the main shaft The outer circle of the bearing is matched, and the outer circle is matched with the hole of the gearbox body to ensure that the three bearing holes of the main shaft are concentric and the gears are meshed correctly.

Previously, due to the small amount of parts produced, the holes on the flange were processed by scribing first and then drilling one by one with a bench drill, which caused the problem of low production efficiency. In order to improve production efficiency, those skilled in the art hope to propose a flange drilling jig suitable for drilling multiple holes simultaneously.

Contents of the invention

The utility model proposes a flange drilling jig, and the technical problem to be solved by the utility model is how to propose a flange drilling jig suitable for drilling multiple holes at the same time.

The technical problem to be solved in the utility model can be realized through the following technical solutions: a flange drilling jig includes a base, a top plate and a workpiece holding platform, the top plate is located above the workpiece holding platform, and the top plate is fixedly connected to the base, A plurality of drill sleeves are installed on the top plate; a pressing plate is arranged between the top plate and the workpiece holding platform, and the pressing plate is installed on the base; the workpiece holding platform and the base are connected by a rack and pinion assembly, and a handle is installed on the gear.

The base is fixed on the platform of the drilling machine; the workpiece is placed on the workpiece holding platform, and the workpiece holding platform is raised by pulling the handle, and then the pressure plate and the workpiece holding platform are forced to clamp the workpiece; during the drilling process, people can Hold the handle by hand, and then maintain the above state. The position of the drill sleeve corresponds to the position of the hole to be processed; the positions of multiple drill bits correspond to the positions of multiple drill sleeves. Multiple holes can be processed at the same time by manipulating the drilling machine, that is, all the holes on the flange can be processed at one time.

Compared with the prior art, the flange drilling jig has the advantages of convenient clamping and improved drilling efficiency.

Description of drawings

Fig. 1 is a three-dimensional structure schematic diagram of the flange drilling jig.

Fig. 2 is a schematic cross-sectional structure diagram of the flange drilling jig.

Fig. 3 is a schematic diagram of a three-dimensional structure of a workpiece.

In the figure, 1, base; 2, top plate; 2a, positioning hole; 3, workpiece holding platform; 4, side plate; 5, drill sleeve; 6, rack and pinion assembly; 7, handle; 8, pressure plate; 9, 10, spring; 11, first lock nut; 12, support rod; 13, second lock nut; 14, second limit rod; 15, workpiece.

Detailed ways

The following are specific embodiments of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model is not limited to these embodiments.

As shown in FIGS. 1 and 2 , the flange drilling jig includes a base 1 , a top plate 2 and a workpiece holding platform 3 .

The bottom surface of the base 1 is plane, and then can be placed on the table of the drilling machine smoothly. The bottom of the base 1 has a connecting portion that enables the base 1 to be fixedly connected to the table of the drilling machine through bolts and nuts.

The top plate 2 is located on the top of the flange drilling jig, and the top plate 2 and the base 1 are fixedly connected by bolts. The drawings in the specification show that the top plate 2 and the base 1 are fixedly connected by side plates 4 and bolts; according to the parts to be processed Height The height of the side panels 4 can be adjusted adaptively. As shown in Figure 3, the top of the workpiece 15 is cylindrical, and the top plate 2 is provided with a positioning hole 2a, so that when the workpiece 15 is clamped, the top of the workpiece 15 is positioned with the positioning hole 2a, which not only improves the clamping accuracy of the workpiece 15, but also reduces The height of the flange drilling jig. A plurality of drill sleeves 5 are installed on the top plate 2; the number and positions of the drill sleeves 5 correspond to the number and positions of the holes to be processed. A first limiting rod 9 for limiting the circumferential position of the workpiece 15 is also fixed on the bottom surface of the top plate 2 .

The workpiece holding platform 3 is located between the top plate 2 and the base 1 . The top surface of the workpiece holding platform 3 coincides with the bottom surface of the workpiece 15 to ensure the stability and accuracy of the workpiece 15 being placed on the workpiece holding platform 3 .

The workpiece holding platform 3 and the base 1 are connected by a rack and pinion assembly 6, and the accompanying drawings of the description show that the workpiece holding platform 3 and the rack in the rack and pinion assembly 6 are connected as one. The rack in the rack and pinion assembly 6 is installed in the base 1 , and the gear in the rack and pinion assembly 6 is connected to the base 1 in rotation; the shaft of the gear passes through the base 1 and a handle 7 is mounted on it.

A pressing plate 8 is provided between the top plate 2 and the workpiece holding platform 3, and the number of the pressing plates 8 is multiple groups; the accompanying drawings of the specification show that the number of the pressing plates 8 is two groups, which can be increased adaptively according to the actual situation. One end of pressing plate 8 is positioned at the top of workpiece holding platform 3, and the other end of pressing plate 8 is positioned at the outside of workpiece holding platform 3; 1 is fixedly connected. A spring 10 and a first locking nut 11 are threaded on the second limiting rod 14, and the first locking nut 11 is positioned above the second limiting rod 14, and the upper end of the spring 10 is connected to the second limiting rod. 14 rely on each other, the lower end of the spring 10 and the base 1 rely on each other; the pressure plate 8 remains against the first lock nut 11 under the elastic force of the spring 10, and then maintains the position of the pressure plate 8, which is convenient for workpiece clamping. The base 1 is also fixed with a support rod 12 against which the lower side of the other end of the pressure plate 8 leans against. Specifically, the support rod 12 is threadedly connected with the base 1 and the support rod 12 is threaded with a second locking nut 13. The actual supporting height of the support rod 12 can be adjusted by screwing the second locking nut 13 and the support rod 12 . The height of the pressing plate 8 can be adjusted by turning the second locking nut 13 , that is, it can be adjusted adaptively according to the actual situation of the workpiece 15 .

Claims (8)

1. A flange drilling jig, including a base (1), a top plate (2) and a workpiece holding platform (3), the top plate (2) is located above the workpiece holding platform (3), and the top plate (2) and the workpiece holding platform (3) The base (1) is fixedly connected, and a plurality of drill sleeves (5) are installed on the top plate (2); it is characterized in that a pressure plate (8) is provided between the top plate (2) and the workpiece holding platform (3), and the pressure plate (8 ) is fixed on the base (1); the workpiece holding platform (3) and the base (1) are connected through a rack and pinion assembly (6), and a handle (7) is installed on the gear. 2. The flange drilling jig according to claim 1, characterized in that, the top plate (2) and the base (1) are fixedly connected by side plates (4) and bolts. 3 . The flange drilling jig according to claim 1 , characterized in that, the top plate ( 2 ) is provided with a positioning hole ( 2 a ) capable of forming positioning with the top of the workpiece ( 15 ). 4 . 4. The flange drilling jig according to claim 1, characterized in that, the bottom surface of the top plate (2) is also fixed with a first limit rod (9) for limiting the circumferential position of the workpiece (15) . 5. The flange drilling jig according to claim 1 or 2 or 3 or 4, characterized in that there are multiple sets of the pressing plates (8). 6. The flange drilling jig according to claim 1 or 2 or 3 or 4, characterized in that one end of the pressing plate (8) is located above the workpiece holding platform (3), and the pressing plate (8) The other end is located outside the workpiece holding platform (3); the middle part of the pressure plate (8) is pierced with a second limit rod (14), and the second limit rod (14) is fixedly connected with the base (1); The base (1) is also fixed with a support rod (12) for the lower side of the other end of the pressure plate (8) to lean against. 7. The flange drilling jig according to claim 6, characterized in that a spring (10) is threaded on the second limit rod (14) and is threaded with a first lock nut (11 ), the first lock nut (11) is located above the second limit rod (14), the upper end of the spring (10) is dependent on the second limit rod (14), and the lower end of the spring (10) is connected to the base (1 ) depend on each other. 8. The flange drilling jig according to claim 6, characterized in that the support rod (12) is threadedly connected to the base (1) and the support rod (12) is threaded with a second locking nut (13).