CN108436519A - Drilling jig for bolts - Google Patents

Abstract

The invention discloses a drilling clamp of a bolt, which comprises a bottom plate, wherein a symmetrical clamping seat is arranged in the middle of the bottom plate, the section of the clamping seat is in a right trapezoid shape, the included angle between the inclined plane and the bottom plate is 60 degrees, a threaded hole is formed in the upper end of the clamping seat, the central axis of the threaded hole is parallel to the inclined plane of the clamping seat, a press rod in threaded connection is arranged in the threaded hole, a T-shaped groove in the direction of the inclined plane of the clamping seat is formed in the lower end of the threaded hole, a sliding block in sliding connection is arranged in the T-shaped groove, a clamping surface with the included angle of 120 degrees with the inclined plane of the clamping seat is arranged on the sliding block, a linear driving device I and a linear driving device II are respectively arranged at the two ends of the clamping seat, a pressing block I moving in the length direction of the bottom plate is arranged at the front end, the trouble of manufacturing the clamp aiming at the bolts with different specifications is saved, and the cost of the clamp is reduced.

Description

Drilling jig for bolts

technical field

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

Background technique

In the field of mechanical fasteners, bolts usually need to be drilled at the head in order to meet safety requirements. In the prior art, when drilling hexagonal head bolts, there are usually the following problems. The reason is that the drilling operation is time-consuming and labor-intensive, the drilling jig is more complicated, the operation is inconvenient, the efficiency is low, the drilling quality is low, etc. This kind of bolt drilling jig can no longer meet the existing production needs. The existing patent 204711352 discloses a A bolt drilling jig, the jig puts the bolt into the hexagonal hole that matches the head of the bolt, and then fixes the bolt with a lock nut at the other end. This jig has limitations in the processing range, and the bolt factory usually processes a variety of For different types of bolts, if the clamping method of the fixture is used, it is necessary to formulate fixtures for different types of bolts, which increases the manufacturing cost of the fixture.

Contents of the invention

The technical problem to be solved by the present invention is to provide a bolt drilling jig to solve the above-mentioned multiple defects in the prior art.

In order to achieve the above object, the present invention provides the following technical solutions: a drilling jig for bolts, including a bottom plate, a symmetrical clamping seat is provided in the middle of the bottom plate, the cross section of the clamping seat is a right-angled trapezoid and the slope is in line with the bottom plate. The included angle is 60°, the upper end of the clamp seat is provided with a threaded hole, the central axis of the threaded hole is parallel to the slope of the clamp seat, the threaded hole is provided with a threaded pressure rod, and the lower end of the threaded hole is provided with There is a T-shaped slot along the direction of the inclined plane of the clamping seat, and a sliding block is provided in the T-shaped slot. The two ends are respectively provided with a linear drive device 1 and a linear drive device 2. The front end of the linear drive device 1 is provided with a pressing block 1 that moves along the length direction of the bottom plate, and the front end of the linear drive device 2 is provided with a block that moves along the length direction of the bottom plate. Compress block two.

Preferably, the size of the first pressing block is the same as that of the section of the head of the bolt to be processed, and the size of the second section of the pressing block is the same as that of the shank of the bolt to be processed.

Preferably, the first linear drive device and the second linear drive device are either linear stepper motors or cylinders.

Preferably, the linear motion tracks of the first pressing block and the second pressing block are on the axis of symmetry of the clamp seat.

The beneficial effect of adopting the above technical scheme is: a bolt drilling jig of the present invention, the specific use method of this jig is: place the bolt to be processed horizontally, so that the two sides of the bolt head are respectively located on the inclined surface of the clamping seat, Slide the slider to the bolt head so that the clamping surface on the slider contacts the other two sides of the bolt head. The bolt head is a regular hexagon with each angle being 120°. The clamping surface is in contact with the clamping seat. The included angle of the inclined plane is 120°. The clamping surface and the inclined plane of the clamping seat jointly clamp the two opposite corners of the bolt head. Turn the pressure bar so that the front end of the pressure bar presses the slider against the side of the bolt head, and then presses it tightly. Block 1 and compression block 2 stretch out, compression block 1 withstands the head of the bolt, and compression block 2 withstands the stem of the bolt, the bolt to be processed is completely fixed, and then the bolt head is drilled by the drilling device hole, this fixture utilizes the characteristics that the heads of hexagonal bolts of all sizes are regular hexagons, and adopts the clamp seat and clamping surface with an included angle of 120° to clamp and fix from the two opposite corners of the bolt head. Compared with traditional fixtures, this fixture has strong versatility and is suitable for drilling holes on the heads of all hexagonal bolts. It saves the trouble of making fixtures for bolts of different specifications and reduces the cost of fixtures.

Description of drawings

Fig. 1 is a schematic diagram of the present invention;

Fig. 2 is A to partial sectional view of the present invention;

Fig. 3 is the fixed schematic diagram of the bolt to be processed of the present invention;

Fig. 4 is a schematic diagram of the slider of the present invention.

Among them, 1-bottom plate, 2-linear driving device 1, 3-pressing block 1, 4-linear driving device 2, 5-pressing block 2, 6-clamp seat, 7-pressure rod, 8-slider, 81 -Clamping surface, 9-T-shaped slot, 10-threaded hole, 11-bolt to be processed.

Detailed ways

Preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

Fig. 1-4 shows the specific embodiment of the present invention: a kind of drilling jig of bolt, comprises base plate 1, and described base plate 1 middle part is provided with symmetrical clamping seat 6, and the section of described clamping seat 6 is right-angled trapezoidal and inclined-plane and The included angle with the bottom plate 1 is 60°, the upper end of the clamp seat 6 is provided with a threaded hole 10, the central axis of the threaded hole 10 is parallel to the slope of the clamp seat 6, and the threaded hole 10 is provided with a threaded connection. Press bar 7, the lower end of the threaded hole 10 is provided with a T-shaped slot 9 along the direction of the inclined plane of the holder 6, and the T-shaped slot 9 is provided with a slide block 8 which is slidably connected. The clamping surface 81 with an angle of 120° between the inclined planes of the seat 6 is provided with a linear drive device 1 and a linear drive device 2 4 at both ends of the clamp seat 6 respectively, and the front end of the linear drive device 1 2 is provided with a The compression block 1 3 moving in the direction, the front end of the linear drive device 2 4 is provided with the compression block 2 5 moving along the length direction of the base plate 1 .

In this embodiment, the compression block one 3 has the same size as the head section of the bolt 11 to be processed, and the compression block two 5 has the same size as the shaft section of the bolt 11 to be processed.

In this embodiment, the first linear drive device 2 and the second linear drive device 4 are either linear stepper motors or cylinders.

In this embodiment, the linear motion tracks of the first pressing block 3 and the second pressing block 5 are on the axis of symmetry of the clamp seat 6 .

Based on the above, a bolt drilling jig with the structure of the present invention, the specific use method of this jig is: place the bolt 11 to be processed horizontally so that the two sides of the bolt head are respectively located on the inclined surface of the holder 6, and the slide block 8 slide to the bolt head, so that the clamping surface 81 on the slider 8 is in contact with the other two sides of the bolt head, the bolt head is a regular hexagon, each angle is 120°, the clamping surface 81 and the The angle between the slopes of 6 is 120°, the clamping surface 81 and the slope of the clamping seat 6 jointly clamp the two opposite corners of the bolt head, and the pressure rod 7 is rotated so that the front end of the pressure rod 7 pushes the slider 8 against the bolt head. On the side, then stretch out the compression block 1 3 and the compression block 2 5, the compression block 1 3 withstands the head of the bolt, the compression block 2 5 withstands the stem of the bolt, and the bolt 11 to be processed is completely fixed , and then the head of the bolt is drilled by the drilling device. This fixture utilizes the characteristics that the head of the hexagonal bolt of all sizes is a regular hexagon. The two opposite corners of the head are clamped and fixed. Compared with the traditional fixture, this fixture has strong versatility and is suitable for drilling operations on the head of all hexagonal bolts. It saves the trouble of making fixtures for bolts of different specifications and reduces the cost of fixtures. .

The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, without departing from the inventive concept of the present invention, some modifications and improvements can also be made, and these all belong to the present invention. protection scope of the invention.

Claims (4)

1. a kind of boring grab of bolt, it is characterised in that：Including bottom plate, symmetrical holder is equipped in the middle part of the bottom plate, it is described The section of holder is right-angled trapezium and inclined-plane and the angle with bottom plate is 60 °, and the upper end of the holder is equipped with threaded hole, the spiral shell The central axes of pit are parallel with the inclined-plane of holder, the compression bar being threadedly coupled are equipped in the threaded hole, the threaded hole lower end is set There is the T-slot along holder bevel direction, the sliding block being slidably connected is equipped in the T-slot, the sliding block is equipped with oblique with holder The clamping face that face angle is 120 °, the holder both ends are respectively equipped with linear drive apparatus one and linear drive apparatus two, described One front end of linear drive apparatus is equipped with the compact heap one moved along floor length direction, and two front end of the linear drive apparatus is equipped with The compact heap two moved along floor length direction.

2. the boring grab of bolt according to claim 1, it is characterised in that：The compact heap one and bolt head to be processed Portion's cross-sectional sizes are consistent, and the compact heap two is consistent with bolt shank cross-sectional sizes to be processed.

3. the boring grab of bolt according to claim 1, it is characterised in that：The linear drive apparatus one and straight line drive Dynamic device two is any one of linear stepping motor or cylinder.

4. the boring grab of bolt according to claim 1, it is characterised in that：The compact heap one and compact heap two it is straight Line movement locus is on the axis of symmetry of holder.