RU212002U1 - JIG FOR DRILLING HOLES - Google Patents

Abstract

The utility model relates to devices used for marking and drilling holes, and can be used in furniture production in the manufacture of products from wood-based materials. The conductor is made in the form of a housing in which replaceable bushings are installed. Replaceable end stops of different sizes are installed on the body, providing fixation of the jig on the workpiece with different indents from its edge, and replaceable side stop plates. On the body there are risks that ensure the installation of the conductor on the plane of the workpiece along the marking lines applied to its plane. Provides fast and accurate positioning of the drilling axis on the plane of the workpiece along pre-applied marking lines. 3 w.p. f-ly, 8 ill.

Description

Technical field:

The utility model relates to devices used in industry, in particular in furniture production, in the manufacture of products from wood-based materials, such as: solid wood furniture panels, OSB (oriented strand boards), fiberboards (fiberboard, MDF, ZDF), chipboard (chipboard), chipboard panels and others; namely to conductors for marking and drilling holes.

At present, all over the world, including in Russia, the production of furniture items from wood-based materials, for example, panels from laminated chipboard-chipboards, is very actively carried out.

Such panels are widely used, in particular, but not exclusively, by small manufacturing firms and do-it-yourself enthusiasts.

In order to position a pair of panels at a right angle, they are usually drilled and fastened with dowels and / or confirmats (Euro screws). Drilling is carried out in the end edge of the first panel, with this end the first panel will be attached to the second panel. Another panel is drilled in the place where the first panel should be located. This location may be at the edge of the panel (ie, on the surface adjacent to the end edge) or on the plane of the panel if, for example, the first panel is a partition.

Jigs for drilling holes significantly facilitate and speed up the process of manufacturing and assembling furniture, as well as increase the positional accuracy of the holes created, maintain the desired direction of the drill during the drilling process, and therefore improve the quality of the manufactured product.

The drilling jig is expected to provide:

Maintaining the drill at a fixed angle and at a fixed point while drilling, eliminating accidental tilt or shift of the drill.

The ability to use the jig both when drilling at the end of the panel (plate), and on its plane.

Possibility to select a different offset from the edge of the panel (plate) when drilling, and the ability to easily and accurately repeat this offset for drilling counter holes in the second panel (plate).

Possibility when drilling at the end of a panel (plate) for quick and easy centering along its thickness, with the possibility of quickly and easily repeating this offset (from the side wall to the center of the thickness of the end) when drilling counter holes in the second panel (plate).

Possibility of quick and easy positioning of the conductor along the applied marking lines on the plane and the end of the panel (plate).

State of the art:

At the moment, the following similar devices (analogues) are known:

Analogue 1. jig for drilling holes (Patent RU 198038 U1 dated 06/16/2020)

is a body in the form of a base stop and a base plate fixed to it perpendicularly, where the stop contains holes for precise perpendicular positioning of the drilling tool relative to the end of the workpiece. On the base plate there are marking holes for drilling, and marking the fastening of fittings. The inner part of the base stop is used to position the holes on the end face of the part, and the inner surface of the base is used to position the marking on the plane, and the drilling tool is perpendicular to the plane of the part.

Analogue 2. Jig for drilling holes (Patent RU 142794 U1 dated 07/10/2014) is a body and fixing elements, equipped with clamping plates located in the side parts of the body and designed to center the jig on the part, and end stop mounted on the end part and designed to prevent displacement of the jig on the workpiece, and the fixing elements are made in the form of quick-change jig bushings designed for installation in the body of the jig, its location in the already existing holes of the part and fixation from rotation and displacement by means of screws and pins. Clamping plates are made in the form of plates with a hole milled in the middle part. The body is made with grooves for installing the said clamping plates perpendicular to the plane of the jig with fixing them with screws. And also the body is made with milled grooves of different depths, located at an equal distance from each other to ensure drilling of holes in parts of different thicknesses and the possibility of rearranging the pressure plates in different grooves of the body. The end stop is made in the form of a long plate with a longitudinal hole in the middle part for fastening to the jig perpendicular to its length from the condition that the plate goes beyond the lower plane of the housing. The conductor is equipped with a screw clamp for fastening and fixing the pressure plates and end stop. The end stop is made with a groove in the middle part to enable movement relative to the body. Quick-change bushings are installed at equal distance from each other and are made of different diameters to transfer them along the length of the jig to a given position or when replacing them with a different inner diameter. Quick change sleeves are made without thread.

The closest analogue is Analogue 2 - a jig for drilling holes (Patent RU 142794 U1 dated 07/10/2014). Let's take it as a prototype.

Disclosure of a technical problem:

The above analogues have a similar technical problem - limited use, due to:

fixed position of the holes for the direction of drilling, due to the fixed indentation from the stop (located at the end of the device) or the edge of the workpiece (in the absence of this stop in the design) to the drilling points - the centers of these holes, and, accordingly, the impossibility without using other devices for marking (for example, tape measure) a more flexible choice of the position of the drilling points (centers of drilled holes) relative to the edge of the panel (plate).

the absence of drilling axis indicators on the body (for example, notches) for quick and accurate positioning of the device on the panel (plate) plane along pre-applied marking lines, and, accordingly, the impossibility, without the use of other devices, to quickly and accurately install the device on the panel (plate) plane along pre-applied marking lines.

Both analogs have the listed disadvantages, however, due to the fact that Analog 1 is very limited in use due to the lack of replaceable bushings for positioning drilling holes of different diameters (unlike Analog 2), Analog 2 is closer in design to the utility model and was chosen as a prototype.

Disclosure of the essence of the invention. Technical result:

The objective of the utility model is to eliminate these problems.

The technical result is to achieve greater versatility of the device by having the ability to set a varied (not fixed by the size or device of the body) position of the center of the hole for the direction of drilling, relative to the edge of the panel (plate) - offset, without the use of other devices, for the possibility of drilling by stock positioning and maintaining the perpendicularity of the axis drills to the plane of the panel (plate) when drilling holes for confirmations (Euro screws), dowels and other mounting hardware; and also by having the ability to quickly and accurately position the center of the hole for the direction of drilling - the axis of drilling, on the plane of the panel (plate) along pre-applied marking lines.

The above technical result is achieved due to the original design of the device with interchangeable end stops of various lengths, washers and removable legs-stops, as well as the presence on the device body, from the sides and ends, of notches parallel to the drilling axis, and each notch is in the same plane as with drilling axis, and with the opposite risk.

The end stop (3) of the selected length, if necessary with one or more washers (4, 5) previously put on it, is installed in the body (1), in which a bushing (2) of the required diameter and, if necessary, a side stop plate are pre-installed (7). The end stop (3) is installed from the end of the housing corresponding to the task being solved and into the lower of the two holes (11) intended for this, taking into account the fact that the top of the device is determined by the side of the housing (1) with which the sleeve (2) is installed. When the conductor is located on the plane or the end of the panel (plate), the end stop (3) prevents the conductor from moving relative to the processed panel (plate) on one side, and the side stop plate (7) (if any) prevents the conductor from moving relative to the processed panel (slabs) on the other side. If it is necessary to change the indentation, an end stop (3) of a different size is installed or the number of washers (4, 5) put on the end stop (3) is changed. In the event that an indentation from the edge of the panel (plate) to the drilling point is less than 1/2 of the length of the body (1) of the conductor, a removable stop leg (6) is used instead of the end stop (3). The foot-stop (6) is installed in the body (1) in a fitting hole (12) suitable according to the required offset. (Fig. 5)

If it is necessary to drill on the plane of the panel (plate) along pre-marked marking lines, a bushing (2) is installed in the body (1) of the conductor, while neither the end stop (3) nor the side stop plate (7) are installed. The conductor is located on the plane of the panel (plate) so that each pair of opposite marks (15) of the four marks applied to the body (1) is located on one of the marking lines. (In this case, it is necessary that the marking lines be applied perpendicular to each other.) Then the center of the hole of the sleeve (2) (drilling axis) will be at the point of intersection of these marking lines. (Fig. 7A).

The essence of the invention:

The jig for drilling holes is a body (1), in which replaceable bushings (2) are installed, and to which the fixing elements are attached. The conductor is equipped with interchangeable end stops (3) of different sizes, mounted on the end parts of the body (1), which allow fixing the conductor on the workpiece with different offsets from the edge of the workpiece.

On the body (1) of this jig there are marks (15) that allow you to install the jig on the plane of the workpiece along the marking lines applied to the plane of the workpiece.

The jig is equipped with interchangeable side plates-stops (7) mounted on the body (1) using permanent magnets (8), with additional possibility of fastening with fixing screws (9) (presence of holes (16) in the side plate-stop (7) for fastening ) or without it.

Replaceable side plates-stops (7) have a stepped shape, which allows centering the jig on the narrow sides of the parts, in particular the ends, of various thicknesses.

The jig is equipped with removable legs-stops (6), which can serve as end stops (3).

The advantage of the above design:

This model of the jig provides versatility in work, increases the speed and accuracy of manufacturing products. Facilitates the production process, while the products are of better quality.

Brief description of drawings:

Figure 1. shows the appearance of the conductor in the assembled state. Fig. 1A - the conductor is assembled for drilling holes with a set indent from the edge of the panel (plate). Fig. 1B - the conductor is assembled for centering on a panel (plate) of small width by rotating the installed conductor around the drilling axis in any direction until it stops.

On FIG. 2 shows the external elements included in the utility model, with some possible embodiments.

On FIG. 3 shows the external elements included in the utility model, with some possible versions, from other angles.

On FIG. 4 explains graphically the concept of drilling pitch.

On FIG. 5 shows examples of setting the offset from the edge of the panel (plate). Fig. 5A with end stop (3) but without washers (4 and 5). Fig. 5B using end stop (3) and washer (4). Fig. 5B using end stop (3), and washers (4 and 5). Fig. 5G using the stop leg (6).

On FIG. 6 shows examples of using a jig with panels (plates) less than the width of the body of the jig with a thickness (Fig. 6A) and greater than the width of the body of the jig with a thickness (Fig. 6B).

On FIG. Figure 7 shows examples of installing a jig for drilling holes on the panel plane along pre-applied two marking lines perpendicular to each other (Fig. 7A) and for drilling holes on the panel plane along pre-applied several marking lines perpendicular to the edge of the panel and a fixed indent from this edge (Fig. 7B)

On FIG. 8 shows the principle of using the utility model for drilling coaxial holes of different diameters in panels for connecting these panels using confirmations (Euro screws).

On the drawings:

1 - Housing.

2 - Replaceable bushings (guiding the drill when drilling).

3 - Replaceable end stops.

4 - Washer with a thickness equal to the drilling pitch.

5 - Washers with a thickness less than the drilling pitch (for example, 1/2 pitch).

6 - Removable legs-stops.

7 - Replaceable side plates-stops.

8 - Magnets.

9 - Screws for fastening the side stop plates with mounting holes.

10 - Hole for installing a replacement sleeve.

11 - Holes for installing interchangeable end stops.

12 - Holes for installing removable legs-stops.

13 - Holes in which the magnets are located.

14 - Holes for fastening side plates-stops with mounting holes.

15 - Marks indicating the drilling axis.

16 - Mounting holes for side stop plates.

Implementation of the utility model:

The jig for drilling holes is a body (1), in which are installed: bushing (2), end stop (3), one or two stop legs (6); a side stop plate (7) is also attached to the body.

The body (1) is a parallelepiped, the width of which is made equal to the thickness of one of the common wood-based materials with which to work. (For example, if you most often work with 16 mm chipboard, the jig body is made 16 mm wide.) The length of the body (1), in particular, depends on what drilling pitch the jig is designed for. The pitch is the standard distance between the centers of two holes located on the same line, provided by this jig by means of stops, which is necessary in the production in which this jig is used. Ideally, the stride should cover all required production distances, i.e., all production distances should be a multiple of the stride. At the same time, the step should be as large as possible, as this will reduce the number of interchangeable stops and simplify the design. The pitch depends on the needs of a particular production (in particular, the needs of end users - people who will use this jig for its intended purpose) (for example, the pitch can be 10 mm, 1/2 inch, etc.) The length of the body (1) should always be a multiple of the set pitch multiplied by 2, respectively, the minimum length is 2 steps, however, to implement the full functionality of the conductor, the length of the body (1) must be at least 4 steps, the maximum length is not limited by theory. Case height may vary.

In the body (1) there is a through hole (10), in particular with a thread, for installing the sleeve (2), the center of this hole (10) is in the center of the width and length of the body (1).

In the body (1), provided that the length of the body (1) is equal to 4 or more steps, there are through holes (12) with a thread for installing the legs-stops (6), the centers of these holes (12) are located in the center of the width of the body (1 ) (in the same plane with the drilling axis), on different sides from the hole (10), at a distance, a multiple of the step plus 1/2 of the thickness of the working part of the stop leg (6), from the center of the hole (10) (drilling axis), so so that the location is symmetrical about the drilling axis. As a result, the distance from the drilling axis to the nearest surface of the installed stop leg (6) must be a multiple of the step.

At the ends of the body (1) there are holes (11), in particular with a thread, for installing the end stop (3), located so that the end stop (3) can perform its function - to fix the jig on the panel (plate), while the offset from the upper and lower edges of the end to the center of the hole (11) was not less than 1/2 of the maximum thickness of the leg of the end stop (3) so that the leg of the end stop (3) does not interfere with the installation of the body (1) of the conductor on the panel (plate).

On the sides of the housing (1), in particular, blind holes (13) may be provided, in which permanent magnets (8), in particular, but not exclusively neodymium, are installed, in particular, but not exclusively with adhesive compositions. The magnets (8) are installed in the holes (13) so that the plane of the magnet (8) does not protrude outside the plane of the side wall of the housing (1). These magnets are intended, in particular, to hold the side stop plate (7).

On the sides of the housing (1), in particular, there may be blind or through holes (14), in particular with a thread, for fixing the side stop plate (7).

On the sides and ends of the body (1) there are risks (15) parallel to the drilling axis, and each risk (15) is in the same plane both with the drilling axis and with the opposite risk (15). Including due to the presence and use of these risks (15), the claimed technical result is achieved.

Replaceable sleeves (2) guide the drill when drilling. Interchangeable sleeves (2) are made with different diameters of internal holes, which allow to guide drills of different diameters and, as a result, to obtain holes of different diameters. Bushings (2) are cylindrical. Bushings (2) have a through hole in the center of the ends. The diameter of this hole slightly exceeds the diameter of the guided drill, so that the drill does not jam during operation, but at the same time, the guiding function of the sleeve (2) is preserved, eliminating the involuntary inclination of the drill relative to the required drilling axis. At the end of the sleeve (2), in particular, there is a thread, in particular of such a length that when the sleeve (2) is installed in the body (1), there is free space inside the body (1) under the sleeve (2), into which chips will be discharged when drilling. This will speed up the drilling process, and also prevent the conductor from moving uncontrollably due to being pushed out by rising chips. The bushings (2) are made, in particular, but not exclusively of steel, in particular, they can be hardened to increase wear resistance.

Replaceable end stops (3) fix the conductor on the panel (plate), setting the offset from the edge of the panel (plate) during drilling. The end stops (3), in particular, have the shape of a T-shaped cylinder, i.e. a disk, from the center of which a cylinder-leg protrudes, smaller than the diameter of the disk, at the end of which a thread is applied. The length of the end stop (3) is equal to the sum of the thickness of the disk, the length of the working surface of the cylinder leg (from the edge of the disk, from which this leg protrudes, to the plane that abuts against the end of the body (1) after installing the end stop (3) into the body (1 )), and thread length. The length of the working surface of the cylinder leg, in particular, may be equal to zero. The end stops (3) may have a length of the working surface of the cylinder leg, in particular, a multiple of the pitch. In the presence of a washer (4), the end stops (3) can have the length of the working surface of the cylinder leg, in particular, a multiple of 2 steps. Including through the use of these replaceable end stops (3) the claimed technical result is achieved.

The washer (4) has the shape of a cylinder, with a diameter, in particular, equal to the diameter of the disk of the end stop (3), with a through hole in the center of the ends, with a diameter slightly exceeding the outer diameter of the working surface of the cylinder leg of the end stop (3). The height of the cylinder (the thickness of the washer) is equal to 1 step. The washer (4) is used to reduce the total number of used end stops (3) by 2 times while maintaining the possibility of setting any offset that is a multiple of the step.

In particular, the jig can be provided with a washer (5) that differs from the washer (4) only in thickness. The thickness of the washer (5), in particular, can be equal to 1/2 step - to increase the possible options for setting the indent (it becomes possible to set indents that are multiples of 1/2 step) (for example, if the step is 10 mm, then, for example, behind the indent of 50 mm , an offset of 60 mm follows, and with this washer, an offset of 55 mm can be set). The thickness of the washer (5), in particular, may be equal to 1/3 of the pitch, in which case it is desirable to provide the jig with two such washers (5). Various such options are possible.

The washers (4, 5) are mounted on the end stop (3) before the end stop (3) is installed in the body (1). Including due to the use of these washers (4, 5) the claimed technical result is achieved.

Removable stop-legs (6) have a cylindrical shape, at one end of this cylinder, in particular, a thread is applied, and at the other, in particular, slots or protrusions for mounting tools (for example, an internal or external hexagon). Leg-stop (6) installed in the body (1) from below (on the side opposite to the side from which the sleeve (2) is installed) performs the function of an end stop (3) in the case when the required offset from the drilling axis to the edge of the panel (plate) ) is less than half the length of the body (1) of the conductor. Two stop legs (6) installed in the body (1) in holes (12) equidistant from the drilling axis for installing stop legs (6) (Fig. 1B) allow centering the jig on the panel (plate) or any other suitable objects ( for example, a bar, a rail, a board), whose width is less than the distance between the outer surfaces of one and the other stop legs (6) closest to each other (the distance between the centers of the stop legs (6) minus the outer diameter of the stop leg (6 )). Centering is done by rotating the installed jig around the drilling axis in any direction until it stops (until both stop legs (6) rest against the edges of the panel (plate). Thus, the drilling axis will be in the center of the width of the panel (plate). Including due to the use of these interchangeable legs-stops (6) the claimed technical result is achieved.

Replaceable side plates-stops (7) fix the jig and center its body (1) along the thickness of the end of the panel (plate) when drilling in the end of the panel (plate), or at a distance of 1/2 of the thickness of the panel (plate) from the edge of another (reciprocal ) panels (plates) when drilling on the plane of another (reciprocal) panel (plate), which is necessary, in particular, for connecting panels (plates) using dowels and / or confirmats (Euro screws).

Replaceable side stop plates (7) have, in particular, a stepped shape, that is, the shape of two connected parallelepipeds having the same length and width, but different heights. The width of each of the two conditional parallelepipeds, in particular, is equal to the height of the body (1). The height of the step - the difference between the heights of conditional connected parallelepipeds - is selected taking into account the mathematical modulus of the difference between the width of the body (1) and the thickness of the processed panel (plate). In particular, the step height may be zero when the width of the body (1) and the thickness of the processed panel (plate) are the same. In particular, if the width of the body (1) is less than the thickness of the panel (plate), the side stop plate (7) is installed with a higher conditional parallelepiped to the body (1), while the lower conditional parallelepiped abuts against the side plane of the processed panel (plate), thereby centering the body (1) at the end of the panel (plate) along the width of the end of the panel (plate). In particular, if the width of the body (1) is greater than the thickness of the panel (plate), the side plate-stop (7) is installed with a lower conditional parallelepiped to the body (1), while the higher conditional parallelepiped abuts against the side plane of the processed panel (plate), thereby centering the body (1) at the end of the panel (plate) along the width of the end of the panel (plate). (Fig. 6).

Replaceable side plates (7), in particular, can be made of a material with ferromagnetism (attracted by a permanent magnet) (for example, magnetic stainless steel (ferritic grade)), so that they can be installed on the housing (1) by attraction (magnetization) magnets (8) installed in the housing (1).

Replaceable side plates (7), in particular, can be made of a material that does not have ferromagnetism (not attracted by a permanent magnet) (for example, plastic), and have magnets built into them, to be able to install these side plates (7) on the housing (1) by attracting (magnetizing) magnets (8) installed in the housing (1) magnets installed in the side stop plates (7)

Replaceable side stop plates (7), in particular, can have holes (16) that allow using fixing screws (9) and holes (14) in the body (1) to fix the side stop plates (7) on the body (1).

The conductor is used as follows:

Using a jig to drill coaxial holes of different diameters in panels to connect these panels using confirmations (Euro screws):

(To connect two panels with confirmations (Euro screws), it is necessary to drill a blind hole of smaller diameter at a certain distance from the edge of the panel at the end of one panel (in the center of the end in terms of thickness), and on the plane of the second panel, at the same distance from one edge and at a distance of 1/2 the thickness of the end of the first panel from the other adjacent edge, drill a through hole of a larger diameter perpendicular to the plane of this panel.Further, through these holes, the panels are connected with a confirmat (Euroscrew) and fastened to each other at a right angle.) (Fig. eight).

1. A sleeve (2) with an inner diameter suitable for a drill for drilling holes of a smaller diameter is installed in the body (1) of the conductor.

2. Depending on the required distance from the edge of the panel, a leg-stop (6) or an end stop (3) of the selected length is installed in the body (1) of the conductor. The end stop (3) can be fitted with or without a washer (4) or washer (5) or both washers (4 and 5) as required. If the end stop (3) is installed, it is installed in one of the ends of the body (1) and in the bottom of the two holes (11) intended for this, taking into account the fact that the top of the device is determined by the side of the body (1) on which the bushing (2).

3. A side stop plate (7) is attached to the body (1) on one of the sides, selected according to the thickness of the panel, at the end of which drilling will be performed.

4. The assembled jig is installed on the end of the panel in which drilling will be carried out so that the end stop (3) or stop leg (6) fixes the jig, resting against one plane of the panel, and the side stop plate (7) fixes the jig, resting against to the other side of the panel. After that, drilling is performed to the depth required, depending on the size of the confirmat (Euroscrew).

5. If necessary, the assembled conductor is installed on another part of this end of the panel (on the other side) or on the other end of the panel and drilling is performed. This is repeated until all the necessary holes for confirmations (Euro screws) in the ends of the first panel are drilled.

6. The conductor is removed from the end of the first panel and the bushing (2) is replaced in it with a bushing (2) with an inner diameter suitable for a drill for drilling holes of a larger diameter.

7. The conductor is installed on the plane of the second panel so that the end stop (3) or the stop leg (6) fixes the conductor, resting against one plane of the panel, and the side stop plate (7) fixes the conductor, resting against the other side of the panel. After that, through drilling is performed.

8. If necessary, the assembled conductor is installed on another part of the panel plane and drilling is performed. This is repeated until all the necessary holes for confirmations (Euro screws) in the plane of the second panel are drilled.

9. Further, through these holes, the panels are connected with confirmats (Euro screws) and fastened to each other at a right angle.

Further, if it is required to drill for dowels in the same panels, the end stop (3) and / or the number of installed washers (4, 5) is replaced in the jig or the position of the stop leg (6) in the body (1) of the jig is changed. This is done in order to change the offset from the edge of the panel to the drilling axis. If necessary, the sleeve (2) is replaced with a sleeve (2) with an inner diameter suitable for the drill to drill holes of the required diameter. Further, the process is repeated by analogy.

Using a jig to drill holes on the plane of the panel along pre-applied two marking lines perpendicular to each other (Fig. 7A):

1. A sleeve (2) with an inner diameter suitable for a drill for drilling holes of the required diameter is installed in the body (1) of the jig, while neither the end stop (3) nor the side stop plate (7) are installed.

2. The conductor is located on the plane of the panel so that each pair of opposite marks (15) of the four marks applied to the body (1) is located on one of the marking lines.

3. Drilling is in progress.

Using a jig to drill holes on the plane of the panel along pre-applied marking lines that are several perpendicular to the edge of the panel and a fixed indent from this edge (in particular, this method is suitable for installing shelf supports) (Fig. 7B):

1. A sleeve (2) with an inner diameter suitable for a drill for drilling holes of the required diameter is installed in the body (1) of the conductor,

2. Depending on the required distance from the edge of the panel, a leg-stop (6) or an end stop (3) of the selected length is installed in the body (1) of the conductor. The end stop (3) can be fitted with or without a washer (4) or washer (5) or both washers (4 and 5) as required. If the end stop (3) is installed, it is installed in one of the ends of the body (1) and in the bottom of the two holes (11) intended for this, taking into account the fact that the top of the device is determined by the side of the body (1) on which the bushing (2). The side stop plate (7) is not installed.

3. The jig is located on the plane of the panel so that the end stop (3) or the leg-stop (6) fixes the jig, resting against the desired edge of the panel, from which perpendicular marking lines extend, and so that a pair of opposite marks (15) applied to the ends body (1), located on one of the marking lines. Drilling is in progress.

4. The conductor is installed on the next marking line by analogy, and so on until all the necessary holes are drilled.

Further, if it is required to drill a second row of holes along the same marking lines, at a different distance from the edge of the panel, the end stop (3) and / or the number of installed washers (4, 5) is replaced in the jig or the position of the stop leg (6) is changed in the body (1) of the conductor. This is done in order to change the offset from the edge of the panel to the drilling axis. Further, the process is repeated by analogy.

Claims (4)

1. A jig for drilling holes, made in the form of a housing in which replaceable bushings are installed, characterized in that it is equipped with interchangeable end stops of different sizes mounted on the body, ensuring the fixation of the jig on the workpiece with different indents from its edge, and replaceable side plates - stops, while on the body there are risks that ensure the installation of the jig on the plane of the workpiece along the marking lines applied to its plane. 2. The conductor according to claim 1, characterized in that the replaceable side plates-stops are mounted on the body by means of permanent magnets. 3. The jig according to claim 1 or 2, characterized in that the replaceable side plates-stops are made in a stepped shape, which ensures that the jig is centered on workpieces of various thicknesses. 4. The jig according to claim 1, characterized in that the replaceable end stops are made in the form of removable legs-stops, which ensure the fixation of the jig on the workpiece with various indents from its edge when the jig body protrudes beyond the edge of the workpiece.

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