CN103286598A - Drilling fixture - Google Patents

Abstract

The invention discloses a drilling fixture which comprises a base, a positioning plate and a drill bushing. The positioning plate comprises a top plate and a supporting plate connected with one end of the top plate, the top plate is perpendicular to the supporting plate which is movably connected to the base, a vertical groove structure is formed between the positioning plate and the base, and the drill bushing penetrates the top plate and is arranged on the same. The drilling fixture has high flexibility, and processing of different parts can be realized by the same fixture. Since workpieces can be clamped by force from both the top surface and the side surface, the workpieces can be fixed firmly, and drilling quality is stable. Besides, the drilling fixture has a pneumatic locking effect, and accordingly is convenient and reliable.

Description

A drilling jig

technical field

The invention relates to the field of machining, in particular to a drilling jig.

Background technique

In the drilling process of mechanical processing, the commonly used methods are hand-held and fixture, but there are many problems in both hand-held and fixture. Hand-held machining is prone to shaking due to the influence of mechanical force during the machining process. It affects the machining accuracy, and there are safety hazards in hand-held machining, which is not conducive to the safety of the staff. In addition, the work efficiency of hand-held machining cannot be guaranteed; the problem with jig-type machining is that it is difficult for a jig to adapt to workpieces of different shapes Drilling requirements, and the reliability of the workpiece clamping device is not enough.

Contents of the invention

Purpose of the invention: The technical problem to be solved by the present invention is to provide a drilling jig.

Technical solution: The drilling jig according to the present invention includes a base, a positioning plate and a drill sleeve, the positioning plate includes a top plate and a support plate connected to one end of the top plate, the top plate and the support plate are perpendicular to each other, and the support plate is movably connected to the base A vertical groove structure is formed between the positioning plate and the base; the drill sleeve passes through the top plate and is arranged on the top plate.

When in use, the processed part can be snapped into the vertical groove, and the processed part can be drilled through the drill sleeve. According to the position and size of the hole on the processed part, different positioning plates and drills can be replaced. set.

In order to improve the reliability of the workpiece pressing device, the positioning plate is arranged at one end of the base, and the other end of the base is also provided with a pneumatic locking device, which includes sequentially connected cylinder supports, A cylinder, a cylinder piston, a connecting rod and a briquetting block, a spring is arranged between the connecting rod and the briquetting block, and the cylinder support is fixedly connected with the base.

In order to further improve the reliability of the workpiece pressing device, the cylinder is hinged with the cylinder support, one end of the cylinder piston is set in the cylinder body and is slidingly connected with the cylinder, and the other end is hinged with the upper end of the connecting rod and the pressing block through the same pin , the lower end of the connecting rod is hinged to the base, one end of the spring is movably connected to the connecting rod, and the other end is movably connected to the pressing block.

In order to increase the stability of the processed part and improve the drilling quality, the pressing block is in the shape of a hook that can clamp the two surfaces of the processed part. the

Working principle: Before the workpiece is installed, the spring balances the gravity of the pressing block to avoid the excessive drooping angle of the pressing block and affects the installation of the workpiece; the workpiece is placed in the groove of the base, and the cylinder piston is stretched out, driving the connecting rod and the pressing block to rotate, pressing The two legs of the block press the top surface and the side of the workpiece respectively, and the drill bit drills the workpiece through the drill sleeve. When the workpiece is disassembled, the cylinder piston retracts, driving the connecting rod and the pressing block to retreat, the fastening constraint of the workpiece disappears, and the workpiece is taken out.

Beneficial effects: the invention has strong flexibility and can process different parts with one jig; the top surface and the side surface are used to press the workpiece bidirectionally, the workpiece is fixed firmly, and the drilling quality is stable; pneumatic locking is convenient and reliable.

Description of drawings

Fig. 1 is the front view of the drilling jig of the present invention;

Fig. 2 is a schematic structural view of the drilling jig of the present invention;

Fig. 3 is a top view of the drilling jig of the present invention;

In the figure: 1 pin shaft, 2 base, 3 cylinder support, 4 cylinder, 5 cylinder piston, 6 connecting rod, 7 pressure block, 8 drill sleeve, 9 positioning plate, 10 processed parts, 11 spring.

Detailed ways

The drilling fixture shown in Figure 1-3 includes a base 2, a positioning plate 9 and a drill sleeve 8. The positioning plate 9 includes a top plate and a support plate connected to one end of the top plate. The top plate and the support plate are perpendicular to each other, and the support plate is movable. Connected to the base 2, a vertical groove structure is formed between the positioning plate 9 and the base 2; the drill sleeve 8 passes through the top plate of the positioning plate 9 and is arranged on the top plate.

Before the workpiece is installed, the spring 11 can balance the gravitational effect of the pressing block 7, so as to prevent the excessive drooping angle of the pressing block 7 from affecting the installation of the workpiece; the processed part 10 is placed in the groove of the base 2, and the cylinder piston 5 is stretched out to drive the connecting rod 6 and the briquetting block 7 rotate, and the two legs of the briquetting block 7 press the top surface and the side surface of the processed part 10 respectively, and the drill bit drills the processed part 10 through the drill sleeve 8 .

When in use, the processed part 10 can be engaged in the vertical groove, and the processed part 10 can be drilled through the drill sleeve 8. According to the position and size of the hole on the processed part 10, different drills can be replaced. Positioning plate 9 and drill sleeve 8.

Removing the workpiece: the cylinder piston 5 retracts, driving the connecting rod 6 and the pressing block 7 to retreat, the fastening constraint of the processed part 10 disappears, and the processed part 10 is taken out.

Claims (4)

1. A drilling jig, characterized in that it includes a base (2), a positioning plate (9) and a drill sleeve (8), the positioning plate (9) includes a top plate and a support plate connected to one end of the top plate, the top plate and The support plates are perpendicular to each other, the support plates are movably connected to the base (2), and a vertical groove structure is formed between the positioning plate (9) and the base (2); the drill sleeve (8) passes through the top plate and is arranged on the top plate superior. 2. The drilling jig according to claim 1, characterized in that: the positioning plate (9) is set at one end of the base (2), and the other end of the base (2) is also provided with a pneumatic locking device, The pneumatic locking device includes cylinder support (3), cylinder (4), cylinder piston (5), connecting rod (6) and pressing block (7), connecting rod (6) and pressing block A spring (11) is arranged between (7), and the cylinder support (3) is fixedly connected with the base (2). 3. The drilling jig according to claim 2, characterized in that: the cylinder (4) is hinged to the cylinder support (3), and one end of the cylinder piston (5) is arranged in the cylinder body of the cylinder (4) to connect with the cylinder ( 4) Sliding connection, the other end is hinged with the upper end of the connecting rod (6) and the pressure block (7) through the same pin (1), the lower end of the connecting rod (6) is hinged with the base (2), and the spring (11) One end is movably connected with the connecting rod (6), and the other end is movably connected with the briquetting block (7). 4. The drilling jig according to claim 2 or 3, characterized in that: the pressing block (7) is in the shape of a hook that can clamp the two surfaces of the workpiece (10) to be processed.

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