CN115609047A - A multi-functional positioning and clamping device for drilling residual material - Google Patents

Abstract

The invention discloses a multi-functional positioning and clamping device for drilling residual material. It is coplanar with the axis of the pressing hole, the aperture of the guide hole, the aperture of the first positioning hole and the aperture of the pressing hole are all equal, the first positioning hole is connected with the first positioning pin, and the pressing hole An expansion bolt is connected, the first positioning pin and the first positioning hole are in an interference fit, and the expansion bolt is detachably connected to the pressing hole. The present invention effectively solves the problem that the drill bit is easy to deviate when drilling the tangential hole with the inner and outer circles during the drilling process by setting the clamping device.

Description

A multi-functional positioning and clamping device for drilling residual material

technical field

The invention belongs to the field of mechanical engineering, and in particular relates to a multifunctional positioning and clamping device for drilling residual material.

Background technique

During the general milling or digital milling of internal and external shapes in the machining process, the milling cutter or digital milling cutter is wrapped by a large amount of residual material. Although there is compressed air blowing, as the milling depth increases, the cutting will become very smooth and very difficult It is easy to crush the tool, and at the moment when the surrounding waste material falls, it is very easy to damage the cutting edge of the tool. In order to prevent unsafe accidents, stop counting milling when the remaining 5mm is left, and finally adopt the drilling and rowing of surrounding waste materials to connect the general milling to the end. In order to improve the efficiency of digital milling and avoid final reprocessing, the method of milling and engraving in advance or the method of drilling and discharging residual material after scribing by the fitter is usually used. Use the drill bit to remove a large amount of inner and outer circles. The disadvantage is that the drill bit is easy to deviate when drilling the tangent holes of the inner and outer circles, resulting in continuous blocking. Get twice the result with half the effort, resulting in uneven circle allowance. The disadvantage of using numerical control or manual gas-cutting to reprocess one side of the shape is that the internal stress and hardened layer of heating and air-cooling heat treatment will be formed on the inner and outer circumference of special materials such as alloy steel, which will seriously affect the product quality and the difficulty of subsequent machining.

Contents of the invention

In view of the problem of poor cutting when the digital milling tool is wrapped by residual material in actual production and the damage to the tool when the final residual material falls, internal stress and hardened layer are easily formed in the inner shape of alloy steel material by numerical control plasma or manual gas cutting , which seriously affects the product quality and the difficulty of subsequent machining. At the same time, the drill bit is easy to deviate when removing a large amount of the inner circumference of the drill row to form a connected block. It is inefficient and very unsafe to operate. In order to solve the thorny problems existing at present, the technical scheme of the present invention is as follows:

A multi-functional positioning and clamping device for drilling residual material, including a body, the body is provided with a guide hole, a first positioning hole and a pressing hole, the axis of the guiding hole, the axis of the first positioning hole and the pressing hole The axes of the guide holes are coplanar, and the diameters of the guide hole, the first positioning hole and the pressing hole are all equal.

The first positioning hole is connected with a first positioning pin, and the pressing hole is connected with an expansion bolt.

There is an interference fit between the first positioning pin and the first positioning hole.

The expansion bolt is detachably connected to the pressing hole.

By setting the clamping device, it effectively solves the problem that the drill bit is easy to deviate when drilling the inner and outer circumference of the tangential hole during the drilling process.

Further, the first positioning hole communicates with the pressing hole, the first positioning hole communicates with the guide hole, and the distance between the guide hole and the first positioning hole is 1-1.5mm smaller than the diameter of the guide hole. The hole distance between the first positioning hole and the pressing hole is equal to the hole distance between the first positioning hole and the guide hole, the first positioning pin is a special-shaped positioning pin, and the side wall of the first positioning pin is provided with two circles Arc-shaped mounting surface, the two mounting surfaces are axisymmetrically distributed with the axis of the first positioning pin as the center, the mounting surface is an arc surface with the same diameter as the guide hole, one end of the first positioning pin is connected to the The surface is even, and the other end of the first positioning pin protrudes from the first positioning hole.

Further, the body is also provided with a second positioning hole, the axis of the second positioning hole, the axis of the guide hole, and the axis of the first positioning hole are all coplanar, and the first positioning hole is arranged between the guide hole and the first positioning hole. Between the two positioning holes, the pressing hole is arranged on the side of the second positioning hole away from the first positioning hole, the second positioning hole communicates with the first positioning hole, and the first positioning hole communicates with the guide hole, Connect the second locating hole with the first locating hole, utilize two locating pins, and locate with two pins on one side, the aperture of the second locating hole is equal to the aperture of the guide hole, and the guide hole and the first locating hole The pitch of the hole is 1-1.5mm smaller than the aperture of the pilot hole, and the pitch of the first positioning hole and the second positioning hole is 1-1.5mm smaller than the aperture of the pilot hole, so that the first positioning hole and the second positioning hole, The hole distance of the guide hole is slightly smaller than the size of the aperture, which is convenient for subsequent punching. The hole distance between the pressing hole and the second positioning hole is an integer multiple of the distance between the guiding hole and the first positioning hole. The hole distance of the second positioning hole is 2 times or 3 times of the distance between the guide hole and the first positioning hole. Since the expansion bolt needs to be connected in the already drilled hole, the pressing hole is designed as the first positioning hole and the second positioning hole. An integral multiple of the distance between the two positioning holes, which is convenient for connection. The second positioning hole is connected with a second positioning pin, and the second positioning pin is an interference fit with the second positioning hole. The first positioning pin is Special-shaped positioning pin, the second positioning pin is a cylindrical positioning pin, the side wall of the first positioning pin is provided with two arc-shaped mounting surfaces, and the two mounting surfaces are centered on the axis of the first positioning pin. Symmetrically distributed, the mounting surface is an arc surface with the same diameter as the guide hole, and the two ends of the first positioning pin protrude from the first positioning hole with the same length. It is used for reverse mounting and positioning on a slope or an arc position, one end of the second positioning pin is flush with the surface of the body, the other end of the second positioning pin protrudes from the second positioning hole, and one side of the second positioning pin is aligned with the The surface of the main body is arranged in parallel. By installing the main body upright or reversely, it can adapt to one or more holes on the surface of the workpiece. A flat platform is provided on the side where the first positioning pin and the second positioning pin are close to each other. When installing, the flat platform It is flush with the body, and by setting a flat platform, the two positioning pins are avoided from interfering with each other during installation, and the installation efficiency is improved. The first positioning pin and the second positioning pin can be modified by standard cylindrical positioning pins, and the position of the second positioning pin It can also be installed with modified expansion bolts for positioning and clamping. The nut of the standard expansion bolt is replaced with an eye nut or a triangular eye nut, and the open sleeve must be reprocessed and replaced with a freely shrinkable open elastic sleeve. Due to the impact of burrs, the positioning part of the special-shaped positioning pin and the cylindrical positioning pin are inserted into the hole and processed into a flat platform for easy insertion and extraction.

Further, it also includes an auxiliary pressing piece, the auxiliary pressing piece includes a pressing plate and an expansion bolt connected to the pressing plate, a long hole is provided in the middle of the pressing plate, the expansion bolt is installed through the long hole, and the auxiliary pressing piece is set to Compression piece, when there is only one hole in the workpiece, use the auxiliary compression piece to perform auxiliary compression on the body.

The present invention guides the drill bit by adding a positioning clamping device, avoiding the deviation of the drill bit during the drilling process, and at the same time, through the cooperation of the positioning clamping device, it can meet the use of various scenarios.

Description of drawings

Fig. 1 is the structural representation one of embodiment 1;

Fig. 2 is the structural representation two of embodiment 1;

Fig. 3 is the structural representation three of embodiment 1;

Fig. 4 is the structural representation one of embodiment 2;

Fig. 5 is the structural schematic diagram II of embodiment 2;

Fig. 6 is the structural schematic diagram three of embodiment 2;

Fig. 7 is a schematic structural view of the first positioning pin in Fig. 4;

Fig. 8 is a schematic structural view of the auxiliary pressing member in the present invention.

1-body; 2-first positioning pin; 21-flat platform; 22-installation surface; 3-second positioning pin; 4-screw; 5-expansion bolt; 6-opening elastic sleeve; 8-eye nut; 9- Guide hole; 10-press plate; 11-strip hole.

detailed description

The present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments. It should be noted here that although the descriptions of these embodiments are used to help the understanding of the present invention, they are not intended to limit the present invention. The functional details disclosed herein are for the purpose of describing example embodiments of the invention only. The invention may, however, be embodied in many alternative forms and should not be construed as limited to the embodiments set forth herein.

It should be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments of the invention. If the terms "comprises", "comprises", "comprises" and/or "comprises" are used in the present invention to designate the existence of stated features, integers, steps, operations, units and/or components, And it does not exclude the existence or addition of one or more other features, numbers, steps, operations, units, components and/or their combinations.

It should be understood that in some alternative implementations, the functions/acts may occur out of the order noted in the figures. For example, two figures shown in succession may in fact be executed substantially concurrently or the functions/acts shown in succession may sometimes be executed in the reverse order, depending upon the functionality/acts involved.

It should be understood that in the following description specific details are provided to facilitate a thorough understanding of example embodiments. However, it will be understood by those of ordinary skill in the art that example embodiments may be practiced without these specific details. For example, systems may be shown in block diagrams in order not to obscure the examples in unnecessary detail. In other instances, well-known procedures, structures and techniques may not be shown in unnecessary detail in order not to obscure the example embodiments.

Example 1:

As shown in Figures 1-3, a multi-functional positioning and clamping device for drilling residual material includes a body 1, the body 1 is provided with a guide hole 9, a first positioning hole and a pressing hole, the guide hole 9 The axis, the axis of the first positioning hole and the axis of the pressing hole are coplanar, and the diameters of the guide hole 9, the diameter of the first positioning hole and the diameter of the pressing hole are all equal.

The first positioning hole is connected with a first positioning pin 2 , and the pressing hole is connected with an expansion bolt 5 .

There is an interference fit between the first positioning pin 2 and the first positioning hole.

The expansion bolt 5 is detachably connected to the pressing hole.

By setting the clamping device, it effectively solves the problem that the drill bit is easy to deviate when drilling the inner and outer circumference of the tangential hole during the drilling process.

Example 2:

On the basis of Embodiment 1, the first positioning hole communicates with the pressing hole, and the first positioning hole communicates with the guide hole 9 .

The pitch of the guide hole 9 and the first positioning hole is 1-1.5mm smaller than the aperture of the pilot hole 9, the pitch of the first positioning hole and the pressing hole and the pitch of the first positioning hole and the pilot hole 9 equal.

The first positioning pin 2 is a special-shaped positioning pin.

The side wall of the first positioning pin 2 is provided with two arc-shaped mounting surfaces 22 , and the two mounting surfaces 22 are distributed axisymmetrically around the axis of the first positioning pin 2 .

The mounting surface 22 is an arc surface with the same diameter as the guide hole 9 .

One end of the first positioning pin 2 is flush with the surface of the body 1 , and the other end of the first positioning pin 2 protrudes from the first positioning hole.

After two holes are drilled on the workpiece, the main body 1 is installed on the workpiece first, so that the first positioning pin 2 and the expansion bolt 5 are respectively inserted into the two drilled holes, and the expansion bolt 5 presses the main body 1 on the workpiece. At this time, the guide hole 9 plays a guiding role for the drill bit. After a new hole is made at the position of the guide hole 9, the body 1 is removed and moved forward, and the body 1 is installed with the two front holes. The next hole is guided, and the intersecting holes for drilling the remaining material are drilled back and forth in this way.

The body 1 is connected with a screw 4 for limiting the position of the first positioning pin 2 . The axis of the screw 4 is perpendicular to or perpendicular to the axis of the first positioning pin 2 .

Example 3:

On the basis of Embodiment 1, as shown in Figures 4-7, the body 1 is also provided with a second positioning hole, the axis of the second positioning hole, the axis of the guide hole 9, and the axis of the first positioning hole Coplanar.

The first positioning hole is disposed between the guide hole 9 and the second positioning hole, and the pressing hole is disposed on a side of the second positioning hole away from the first positioning hole.

The second positioning hole communicates with the first positioning hole, and the first positioning hole communicates with the guide hole 9 .

Connect the second locating hole with the first locating hole, and use two locating pins, one side with two pins for positioning.

The diameter of the second positioning hole is equal to the diameter of the guide hole 9 .

The hole distance between the guide hole 9 and the first positioning hole is 1-1.5mm smaller than the aperture of the guide hole 9, and the hole distance between the first positioning hole and the second positioning hole is 1-1.5mm smaller than the aperture of the guide hole 9 .

The distance between the first positioning hole, the second positioning hole and the guide hole 9 is slightly smaller than the size of the aperture, which is convenient for subsequent drilling.

The distance between the pressing hole and the second positioning hole is an integer multiple of the distance between the guide hole 9 and the first positioning hole.

The distance between the pressing hole and the second positioning hole is twice or three times the distance between the guide hole 9 and the first positioning hole.

Since the expansion bolt 5 needs to be connected in the drilled hole, the pressing hole is designed to be an integer multiple of the distance between the first positioning hole and the second positioning hole to facilitate connection.

The second positioning hole is connected with a second positioning pin 3, and the second positioning pin 3 is an interference fit with the second positioning hole.

The first positioning pin 2 is a special-shaped positioning pin, and the second positioning pin 3 is a cylindrical positioning pin.

The side wall of the first positioning pin 2 is provided with two arc-shaped mounting surfaces 22 , and the two mounting surfaces 22 are distributed axisymmetrically around the axis of the first positioning pin 2 .

The mounting surface 22 is an arc surface with the same diameter as the guide hole 9 .

Both ends of the first positioning pin 2 protrude from the first positioning hole, and the protruding lengths of the two ends are the same. It is used for anti-installation positioning on inclined planes or arc positions.

One end of the second positioning pin 3 is flush with the surface of the body 1 , and the other end of the second positioning pin 3 protrudes from the second positioning hole.

One side of the second positioning pin 3 is arranged parallel to the surface of the main body 1, and the main body 1 can be adapted to one hole or multiple holes on the surface of the workpiece by installing the main body 1 upright or reversely.

A flat platform 21 is provided on the side where the first positioning pin 2 and the second positioning pin 3 are close to each other. When installed, the flat platform 21 is flush with the body 1 .

By arranging the flat platform 21, the mutual interference of the two positioning pins during installation is avoided, and the installation efficiency is improved.

The body 1 is connected with a screw 4 for limiting the position of the first positioning pin 2 . The axis of the screw 4 is perpendicular to or perpendicular to the axis of the first positioning pin 2 .

The first locating pin 2 and the second locating pin 3 can be modified by using standard cylindrical locating pins, and the position of the second locating pin 3 can also be installed with a modified expansion bolt 5 for positioning and clamping. The nut of the standard expansion bolt 5 is replaced with an eye nut 8 or a triangular eye nut 8, and its open sleeve will be reprocessed and replaced with a freely shrinkable open elastic sleeve 6 for use. Due to the impact of burrs, the positioning part of the special-shaped positioning pin and the cylindrical positioning pin are inserted into the hole and processed into a flat platform 21 to facilitate insertion and extraction.

After four holes are drilled on the workpiece, the body 1 is installed on the workpiece first, so that the first positioning pin 2 and the second positioning pin 3 are installed in the first hole position and the second hole position, and the expansion bolt 5 is installed in the second hole position. At four holes, the expansion bolt 5 presses the main body 1 onto the workpiece. At this time, the guide hole 9 acts as a guide for the drill bit. After a new hole is made at the position of the guide hole 9, the main body 1 is removed and moved forward. , use the front two holes to install the first positioning pin 2 and the second positioning pin 3 for positioning, and use the fourth hole to install the expansion bolt 5 for compression. At this time, the guide hole 9 guides the next hole to be drilled , so reciprocate forward to drill the intersecting hole of the remaining material. Drilling to the end, when the remaining material is smaller than the positioning hole diameter, use a suitable small drill to drill a small guide hole first, and then use the original positioning hole and drill to drill the remaining material drill bit to expand the hole. When the remaining material is too small to drill a suitable guide small pass When drilling a hole, a suitable flat drill can be used to conduct countersinking through the positioning hole guide until the waste is completely separated.

Example 4:

On the basis of Embodiment 2, as shown in FIG. 8 , an auxiliary pressing part is also included, and the auxiliary pressing part includes a pressing plate 10 and an expansion bolt 5 connected to the pressing plate 10 .

The middle part of the pressure plate 10 is provided with a long hole 11, and the expansion bolt 5 is installed through the long hole 11.

By setting the auxiliary pressing part, when there is only one hole in the workpiece, the auxiliary pressing part is used to carry out auxiliary pressing on the body 1 .

When there is only one hole on the surface of the workpiece, insert the first positioning pin 2 into the hole on the surface of the workpiece, drill an auxiliary hole at the waste, connect the expansion bolt 5 of the auxiliary pressing part to the auxiliary hole, and press the body 1 through the pressing plate 10 Tight, replace the original expansion bolt 5.

When encountering an arc or an inclined surface, the above method is also used to compress through the auxiliary pressing member.

Example 5:

On the basis of Embodiment 2, as shown in FIG. 8 , an auxiliary pressing part is also included, and the auxiliary pressing part includes a pressing plate 10 and an expansion bolt 5 connected to the pressing plate 10 .

The middle part of the pressure plate 10 is provided with a long hole 11, and the expansion bolt 5 is installed through the long hole 11.

By setting the auxiliary pressing part, when there is only one hole in the workpiece, the auxiliary pressing part is used to carry out auxiliary pressing on the body 1 .

When there is only one hole on the surface of the workpiece, reverse-install the first positioning pin 2 (reverse installation refers to: the protruding end of the second positioning pin 3 is away from the workpiece) on the workpiece, and then drill an auxiliary hole at the waste material to place the auxiliary pressure The expansion bolt 5 of the tightening part is connected to the auxiliary hole, and the main body 1 is compressed by the pressure plate 10 to replace the original expansion bolt 5 .

The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be described in the foregoing embodiments Modifications to the technical solutions recorded, or equivalent replacements for some of the technical features. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

The present invention is not limited to the above optional embodiments, and anyone can obtain other various forms of products under the enlightenment of the present invention. The above specific implementation methods should not be construed as limiting the protection scope of the present invention. The protection scope of the present invention should be defined in the claims, and the description can be used to interpret the claims.

Claims (10)

1. The utility model provides a bore multi-functional positioning and clamping device of row's clout which characterized in that: the device comprises a body (1), wherein the body (1) is provided with a guide hole (9), a first positioning hole and a compression hole, the axis of the guide hole (9), the axis of the first positioning hole and the axis of the compression hole are arranged in a coplanar manner, and the aperture of the guide hole (9), the aperture of the first positioning hole and the aperture of the compression hole are equal;

the first positioning hole is connected with a first positioning pin (2), and the compression hole is connected with an expansion bolt (5);

the first positioning pin (2) is in interference fit with the first positioning hole;

the expansion bolt (5) is detachably connected to the compression hole.

2. The multifunctional positioning and clamping device for drilling and discharging residues as claimed in claim 1, wherein: the first positioning hole is communicated with the pressing hole, and the first positioning hole is communicated with the guide hole (9).

3. The multifunctional positioning and clamping device for drilling row residual materials as claimed in claim 2, characterized in that: one end of the first positioning pin (2) is flush with the surface of the body (1), and the other end of the first positioning pin (2) extends out of the first positioning hole.

4. The multifunctional positioning and clamping device for drilling and discharging residues as claimed in claim 1, wherein: the body (1) is further provided with a second positioning hole, the axis of the guide hole (9) and the axis of the first positioning hole are coplanar, the first positioning hole is arranged between the guide hole (9) and the second positioning hole, and the pressing hole is arranged on one side, far away from the first positioning hole, of the second positioning hole.

5. The multifunctional positioning and clamping device for drilling row residual materials as claimed in claim 4, characterized in that: the second positioning hole is communicated with the first positioning hole, and the first positioning hole is communicated with the guide hole (9).

6. The multifunctional positioning and clamping device for drilling row residual materials as claimed in claim 4, characterized in that: the pitch between the pressing hole and the second positioning hole is integral multiple of the pitch between the guide hole (9) and the first positioning hole.

7. The multifunctional positioning and clamping device for drilling row residual materials as claimed in claim 4, characterized in that: the second positioning hole is connected with a second positioning pin (3), and the second positioning pin (3) is in interference fit with the second positioning hole.

8. The multifunctional positioning and clamping device for drilling row residual materials as claimed in claim 7, characterized in that: two ends of the first positioning pin (2) extend out of the first positioning hole;

one end of the second positioning pin (3) is flush with the surface of the body (1), and the other end of the second positioning pin (3) extends out of the second positioning hole.

9. The multifunctional positioning and clamping device for drilling row residual materials as claimed in claim 7, characterized in that: one side of the first positioning pin (2) and one side of the second positioning pin (3) which are close to each other are provided with flat platforms (21).

10. The multifunctional positioning and clamping device for drilling and discharging residues as claimed in claim 1, wherein: the auxiliary pressing piece comprises a pressing plate (10) and an expansion bolt (5) connected to the pressing plate (10);

the middle of the pressing plate (10) is provided with a strip hole (11), and the expansion bolt (5) penetrates through the strip hole (11) to be installed.

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