WO2021096340A1

WO2021096340A1 - Length-measuring guide apparatus for exact cutting

Info

Publication number: WO2021096340A1
Application number: PCT/MX2019/000122
Authority: WO
Inventors: Humberto GONZÁLEZ CALLEJA
Original assignee: Gonzalez Calleja Humberto
Priority date: 2019-11-12
Filing date: 2019-11-13
Publication date: 2021-05-20
Also published as: MX2019013516A

Abstract

The invention relates to a length-measuring guide apparatus for exact cutting, formed by: a length-measuring instrument (6); a fixed support (A) designed to support and actuate the length-measuring instrument (6); a rigid longitudinal guide element (13) that indicates the exact place for cutting; a slidable support (B) that supports the longitudinal guide element (13) and slides on the fixed support (A); fastening means (10) that keep the slidable support (B) sliding on the fixed support (A); and a fastening mechanism (2) that fastens the guide apparatus to a solid part. The invention also relates to a method for precise cutting, using the length-measuring guide apparatus, according to the invention.

Description

TECHNICAL FIELD OF THE INVENTION

The present invention is related to the technical field of Mechanics, since it refers to a length measuring device-guide, which can make small, very small, micro-small length measurements, etc., with great precision, to make exact cuts; thus it also refers to a method for the realization of exact cuts, by means of the use of said apparatus-guide.

BACKGROUND OF THE INVENTION

The vast majority of guides for cutting tools work in the following way, the cutting tool has a guide with some means or measuring mechanism, which allows defining the position of the guide with respect to the desired measure in the cut of the material to be cut off. Said guides are moved manually taking as reference the measurement of the conventional cutting tool. The process is suitable when the cutting needs allow a tolerance of +/- 1 mm; but this process is inefficient when a cut with an even smaller tolerance is required and that is precise, such as +/- 0.4 mm, in these situations the conventional cutting tool systems are not capable of operating and generating a cut with this degree of precision. Technologies have been implemented to obtain the solution, such as patent document US2009 / 0120255 describes a micro-adjustable guide device for a cutting machine. Said document discloses that there already exists a conventional guide device that includes a carriage 1, a guide 2 mounted on a middle part of the carriage 1 and a handle 3 arranged on a side part of the carriage 1 having a longitudinally extending guide groove 101 which allows sliding movement of the carriage 1 along a guide rail 4 on a work table of a cutting machine. A micro-adjustment mechanism 10 is arranged at the bottom of the carriage 1, and includes a suspension arm 11 having a fixed end 111 secured to the carriage 1 by means of two screws 12, and a protruding end 112 with a wheel 13 that rotates on its own axis and deflects from guide rail 4. During a micro-adjustment of the guide device, the operator twists the projected end 112 of suspension arm 11 to move towards guide rail 4 to move angularly the wheel 13 relative to the fixed end 111 and to make frictional contact with the guide rail 4, and subsequently rotates the wheel 13 on the guide rail 4 to allow micro-movement of the guide device along the rail 4. However, as the pressure force applied to carriage 1 is uneven, and as a large torque will be generated as a result of the operation of wheel 13, suspension arm 11 may suffer elastic fatigue or may break after a long period of use (see figure 1),

Therefore, document US2009 / 0120255 proposes a micro-adjustable guide device for a cutting machine, which can be easily operated to apply a uniform friction force to a guide rail for micro-adjustment of the position of the guide. A preferred embodiment of the micro-adjustable guide device mounted on a cutting machine, such as a table saw 100 to support a workpiece (not shown) therein, is illustrated in Figure 2, which is fed along a path. feed in a first direction transverse to a rotary axis of a cutter, such as a circular saw 130, and a pair of guide rails 120 which are respectively disposed below the front and rear sides of table 110, and which extend in a longitudinal direction parallel to the rotary axis of circular saw 130. The guide device of this invention comprises a rail or guide 22, a carriage 21 and a micro-adjustment mechanism 5. With reference to Figures 3 to 5, the guide 22 has front and rear ends 221 opposite each other in the first transverse direction and movable in the longitudinal direction. The carriage 21 is mounted on the guide 22 near the front end 221 and has a chassis body 210 having a handle 212 and a downward facing main wall surface 218 disposed at the top and bottom, respectively. The main wall surface 218 is adapted to face the front guide rail 120 in a second direction transverse to the first transverse direction and to the longitudinal direction. The main wall surface 218 extends in the first transverse direction and toward ahead of the front guide rail 120 to terminate at a front end 219. A vertical front wall 213 extends in the second transverse direction from the front end 219, and has an operative opening 2131 formed therethrough. A dividing wall 217 extends from the surface of the main wall 218 in the second transverse direction, so that the dividing wall 217 cooperates with the surface of the main wall 218 to define a conduction path 211 that extends in the longitudinal direction. To guide the surface of the main wall 218 in a slidable manner, mount the guide rail 120 to allow movement of the guide 22 in the longitudinal direction. In addition, the partition wall 217 cooperates with the front vertical wall 213 to define a mounting chamber 216 to receive the micro-adjustment mechanism 5. The partition wall 217 has a passageway 2171 that extends through the first transverse direction to communicate the chamber. mounting 216 with driving path 211.

The main wall surface 218 in the mounting chamber 216 further extends in the longitudinal direction to terminate on the left and right sides. A tubular post 214 is disposed in a central area of the mounting chamber 216, and has a guide slot 2141 that extends along a path of advance that defines a straight line in the first direction transverse and normal to the path. guide 211, Two anchor posts 215 are arranged on the front and rear sides of the main wall surface 218, and are equally remote from the tubular post 214.

The microadjustment mechanism 5 includes a wheel 30, a biasing element 40, and a cover plate 50. The wheel 30 includes a spindle 31 that extends in the second transverse direction, a hub 33 that surrounds the spindle 31 and defines a hub center on a rotary axis in the second transverse direction, and an edge 32 that can be manually rotated about the rotary axis. Shaft 31 extends out of hub 33 to form a key end 311 that is rotatable and guided to move in guide slot 2141. Edge 32 is configured to be serrated, and extends beyond the vertical wall front 213 through opening 2131 for ease of operation. The deflection element 40 is a wire spring 40 having two secured ends 41 which are respectively secured to the anchor posts 215, and a middle deflection portion 42 which is interposed between the secured ends 41 and which engages the hub 33 of such as to deflect the hub 33 away from the guide rail 120. The cover plate 50 is arranged to cover the mounting chamber 216, and is secured to the anchor posts 215 by means of two clamping screws 52. cover 51 has a guide hole 512 that extends through! itself and along the path of advance such that shaft 31 extends through and is movable relative to guide hole 512,

When the micro-adjustment mechanism 5 is not operated, the wheel 30 is pushed by the wire spring 40 to an inactive position, where the rim 32 disengages from the front guide rail 120. Referring to Figure 7, when it is desired to perform a microadjustment to the guide device, the operator pushes a portion of the edge 32 that extends through the operative opening 2131 towards the front guide rail 120, so that the axis 31 moves along the guide slot 2141 to a position of gain traction, where edge 32 extends through passage 2171 and makes frictional contact with guide rail 120 at a tangential point 321, At this time, the operator can rotate edge 32 on the axis rotatable by hand to allow edge 32 to roll on front guide rail 120, thereby moving guide 22 to a precisely adjusted position. As illustrated, since the wheel 30 is arranged in a middle area of the mounting chamber 216, and since the hub 33 is engaged with the middle deflection part 42 of the deflection element 40, the user can operate the part of the rim 32 which extends beyond the operative opening 2131 to move the hub center along the straight forward path, rather than along an angular path like that of the conventional wheel 13 mentioned above, the advancement path of the hub center as the rim 32 is moved from the idle position to the traction gain position. Subsequently, the user can rotate the edge 32 in the portion that extends beyond the operative opening 2131 to move the entire guide device along the guide rails 120 to a position. desired setting. Therefore, the micro-adjustment operation is easy to carry out. Furthermore, the force generated as a result of the micro-adjusting operation of the wheel 30 can be applied evenly to the carriage 21 to prevent its Tilt, resulting in a smooth movement of the guide device along the guide rails 120. Furthermore , the biasing force of biasing member 40 can bias wheel 30 uniformly due to engagement of middle biasing portion 42 with hub 33.

As can be seen, the micro-adjustable guide device of document US2009 / 0120255 is of a very complex configuration, as is its micro-adjustment mechanism 5, which does not comprise length measurement units, therefore , the settings are not measured.

For its part, patent document US5617909 (B) describes a carpentry machining template and a fixing system 1 incorporated in a table saw that has a table 113, a saw blade 76, a blade guard 80 and a slot. angle guide 112 on table 113. In a well-known manner, a miter bar 74 having a rectangular cross section fits into slot 112 and is slidable in slot 112 in a direction parallel to saw 76. Attached to the Right end of bar 74 (the end not shown in FIG. 1A) is a miter stop head 114 (See, for example, FIG. 15A). The miter bar 74 and the miter head 114 are standard equipment normally sold as part of a table saw. In a well-known manner, a workpiece (not shown) for cutting with the dough saw is placed against the front face 73 of the auxiliary guide 72, the miter head 114 is adjusted to the desired cutting angle, and the workpiece cut into desired position along the length of the workpiece by pushing the workpiece into the saw 76 using the miter head 114, the bar 74 and the auxiliary guide with the workpiece resting against the front surface 73. In doing so, it is desirable that the auxiliary guide 72 extend from the head 114 to be very close to the near side of the saw 76 to provide support for the workpiece near such saw 76. This helps to prevent chipping when the blade breaks through the back surface of the workpiece.

In system 1 shown in figure 1A of US5617909, the accessories shown are added to a common auxiliary guide 72 (modified as described below to incorporate the components) in order to improve the guide, stability and versatility. of the common auxiliary guide. Referring also to Figures 2-6, the components of system 1 include a swivel stop 10, a base 24, and a track 34. It is also desirable in many applications to provide a ruler 49, a locating stopper 44, and a micro belayer 54. , A flip stop assembly 56 includes an L-shaped flip stop 10 that is pivotally attached to a base 24 by a pivot pin 68, which is preferably a 3081 cm long x 0.635 cm diameter bolt, of so that the stop 10 can pivot with respect to the base 24 about the longitudinal axis of the bolt 68. With particular reference to Figures 1-4, the bolt 68 extends through the hole 18 of the stop 10 and the hole 30 of the base 24. The stem end of bolt 68 extends beyond hole 30 and is secured by a locking nut 64, preferably of the type having a plastic friction insert to resist rotation of the nut relative to the bolt. Brass washers 60 preferably separate bolt head 68 from stop 10, stop 10 from base 24, and nut 64 from base 24, to provide bearing surfaces when stop 10 is pivoted relative to base 24. Nut 64 is tightened so that stop 10 is attached to base 24 such that it does not allow any relative movement between stop 10 and base 24, except rotation. When making the stopper 10 as a cut section from an extrusion, it is desirable to form a gap 12 therein to facilitate the formation of holes 14 and 16 and save material in the extrusion process, as is well known in the aluminum extrusion art.

The flip stop assembly 56 is used to longitudinally cut workpieces by measuring the distance between the end of the workpiece that butts against the blade 11 side of the stop 10, and the saw blade 76. With the stop 10 at the working position shown in figure 1Ά, the end of a workpiece table (not shown) is pressed against side 11 of stop 10, while the other end of the board is cut with blade 76. When stop 10 is not in use, it is raised rearward to a standby position, such as the imaginary position shown in Figure 4A, so that a workpiece table can slide along the face 73 of the guide 72 without interfering with the stop 10, Preferably, the grooves 22 are provided in the corner of stop 10 to provide a finger grip to facilitate rotation of stop 10, Base 24 is secured to track 34 so that it can slide along track 34. Referring to Figure 4A, the track has a guide 36 on its upper surface which is a longitudinal T-shaped groove. The head of a 3.175 cm long, 0.635 cm diameter bolt 84 is captured in the slot 36 so that the shoulders 37 engage the shank side of the bolt 84 head, which extends upward from the open slot 36 through hole 39 in base 24 and threads into knob 58, which can be loosened to slide hinged stop assembly 56 along track 34 and tightened to secure position of stop assembly hinged 56 on track 34. Preferably, a brass washer 60 is located between button 58 and base 24, which has a protrusion 28 extending longitudinally along the bottom of base 24 that engages the top of slot 36 to help guide base 24 and prevent it from rotating with respect to track 34 which is secured to the top of auxiliary guide 72 by screws 70 (Figures 1 and 4) extending through chamfered holes 128 in track 36 and s e are screwed into the auxiliary plywood guide 72. The track 34 has an angled notch 40 that runs longitudinally to capture the edge of the ruler 49. Preferably, the angle of the notch 40 is 14 ° and the angle of the edge of rule 48 extrusion coupling is equal to or slightly greater than 15 °) because 14 ° is the angle of a standard dovetail router bit. The opposite side of the extrusion of the ruler 48 is also preferably formed at an angle of 14 or 15 °. A user of system 1 only needs to route a 14 ° edge on guide 72 to receive the bottom edge of ruler 49 (see figure 1A). By screwing the track 34 to the guide 72, the ruler 49 will be captured between the angled edge 42 of the guide and the routed edge of the guide 72. A similar angled edge 42 can be provided on the track. 34 so that the screed can be installed parallel to the top of track 34, as shown in Figure 12A,

Rotary stop assembly 56 moves in small increments relative to track 34 with a micro-adjustment 54 that includes a base 24 'and a brass bolt 62 with a brass knurled knob 66 attached to bolt 62 at one end of the base. 24 'and a locknut 64 at the other end of the base 24'. The base 24 'of the microadjustment 54 is identical to the base 24 of the hinged stop assembly 56, however, when the system 1 is assembled, the base 24' is rotated to the position 180 ° from the position of the base 24 as shown. seen in top view (figure 3), bolt 62 extends through hole 30 in base 24 ', and button 66 and nut 64 at opposite ends of base 24' secure bolt 62 against movement longitudinal in relation to the base 24 '. AND! bolt 82 can be rotated relative to base 24 'because hole 30 is unthreaded and has a slightly larger diameter than bolt 62, which extends into hole 32 in base 24 of flip stop assembly 56 , which threads to engage the threads of bolt 62 and is axially aligned with hole 30 in base 24 '.

Micro adjuster 54 is tightly secured to track 34 with a plastic knob 58 and a bolt 84 captured in slot 36 in the same manner as slide stop assembly 56. To make fine adjustments to the position of the slide assembly. Flip Down Stop 56, Knob 58 on Flip Down Stop Assembly 56 is loosened to allow longitudinal sliding of Flip Up Stop Assembly 56 relative to Track 34. However, Button 58 on Micro Adjuster 54 is left depressed so that it is held in position on track 34. Then, bolt 62 is rotated using knurled knob 66, which moves the flip-top assembly 56 toward or away from micro-adjuster 54, depending on how bolt 62 is rotated, and bolt 62 threads into or out of hole 32. When the desired position of flip-top assembly 56 is reached, button 58 of flip-top assembly 56 can be re-tightened. A longitudinal slot 26 in the base 24 'of the micro adjuster 54 can align with the successive corners of the locknut 64 on the bolt. 62 to measure and calibrate the movement of the pivot stop assembly 56 while turning the bolt, as illustrated in figure 7. Using 20 1/4 '' threads in the bolt 62 and hole 32, the rotary stop assembly 56 it would traverse approximately 0.02 cm when bolt 62 is rotated from a position where one corner of nut 64 is aligned with slot 26 to a position where the next corner is aligned with slot 26. One full revolution of bolt 62 , therefore, it results in the collapsed stop assembly 56 moving approximately 0.127 cm. The exact distance between saw blade 76 and swing stop assembly 56 can be measured with ruler 49.

With the system shown in Figure 1A, the micro adjuster 54 may or may not be used, but in any case, the rotary stop assembly 56 can be used to position a workpiece relative to the blade 76. If desired "memorize" the position of the micro adjuster 54 or of the tilting stop assembly 56 to later return to that position, a locating stop 44 with corners 46 is placed in the groove of the track 36, it is slid to the position to be memorized and it is locked there with a pressure screw 82 (FIG. 1C). At times, it may be desirable to lock the flip stop 10 in the downward position, for example if the workpiece has an angled end that tends to nest behind the stop 10 and lift it into a rotated position. To secure the stop 10 down, a bolt 84 can be inserted through the hole 20 in the stop 10 and threaded into the threaded hole 32 of the base 24, as shown in Figure 3. As can be seen, the element length measurement of the templates of document US5617909 is a ruler that does not make micro measurements, in addition to the table cutting machine being fixed. The fixation system has a very complex configuration, inducing its position micro-adjustment mechanism. Furthermore, both the template and the fixing system 1 are fixed and specific for a table cutting machine; therefore, they cannot be useful to various types of cutting or simply length measuring machines, because they are not mountable. Now, the patent document CN105750682 (A) describes a gas cutting serial combination tool. An embodiment of the gas cutting serial combination tool is illustrated in Figures 1 to 24, which includes a linear cutter 100, a bevel cutter 200, a straight cut torch arc cutter 301 and a cross cutting torch arc cutter 302. As shown in its Figures 1 to 7, the linear cutting device 100 includes a rail 3, a longitudinal carriage 2, an operating platform 1, a weight plate 5, a balance roller 12, a mobile support 9 and a lifting support frame 14. The longitudinal carriage 2 is composed of front and rear sliders, which are symmetrically welded and fixed at the Lower ends of the longitudinal center of the operating platform 1 and on rail 3, where they can be moved longitudinally; and the left and right sides of the operating platform 1 have a weight plate 5, the balance roller 12 which is mounted under the weight plate 5 through a support 18, and the bottom of the two rollers 12 are in contact with the steel plate of the work table on the same horizontal surface, and in the central lateral position of the operation platform 1 a left and right column is placed where there is a fixed gas torch 8, each Set of columns consists of a positioning column b and a fixed column 7. The fixed column 7 is provided with a clamping screw 10 and an elastic clip 11 to fix the cross-cutting torch! 8, as shown in the figures. In Figure 5, between columns 6 and 7 is a spring clip 11 having a slot and engages the slot at the front end of a clamp screw 10 through the through hole in the slot, and spring clip 11 can rotate around the axis of the clamping screw 10.

The rail 3 is fixed on the surface of the steel plate of the work table 1 by the magnetic block 4, and the movable support 9 and the lifting support frame 14 are mounted on one side of the operating platform 1, and the rear ends of the movable support 9 are rotatably connected to the operating platform 1 through the locking screws of the pin 13. A positioning slot for positioning the transverse cutting torch! 8 is arranged in the center of the front end of the movable support 9, and a vertical opening rod 17 is welded to the support 14; and the hole 15 and the lifting support frame 14 are supported on the opening rod 17. The screw pin 16 at the front end is positioned and connected in the movable support 9 which is vertically adjusted to adjust the distance between the transverse torch 8 and the steel plate of the work table 1, and then the movable support 9 is fixed. First, the linear cutting device 100 is moved on the rail 3 which is made at an angle of steel. Generally, this device is used to cut a straight line to a length not too long, 50 cm per segment is enough, as shown in figures 22, 23 and 24, if the rail 3 is not long enough, its two sections They can be assembled together on the 3-1 triangular connecting plate, and there are two magnetic blocks 4 at the end of the rail 3. As shown in figure 7, the magnetic block 4 is screwed to the ring of the handle 19, the inner circle of which It is made of a magnetic material, the bottom of the magnetic block 4 is a stepped shaft, and the stepped shaft is coupled with the stepped seat fixing hole on the side of the rail 3 to magnetize the bottom surface of the steel plate of the worktable so that the rail 3 does not slide, and the magnetic block 4 is selected to be suitable for disassembly.

In Figures 8 to 12 of CN105750682 (A), the bevel cutting device 200 includes a curved bracket 22, a straight torch bracket 23 and a right torch angle adjusting bracket 24. The curved bracket 22 is provided of an arc-shaped groove which is together with the sliding seat at the rear of the straight torch holder 23, and the set screw 25 is passed between the sliding seat and the curved slot at the rear end of the fixing seat of said straight torch 23. The slots for fixing the sturdy torch 21 are respectively provided, and the two sides of the slot have elastic thin plates provided with a locking screw 20 for locking the straight torch 21. The elastic fixing plate of the closure The screw clamp 20 is contracted inwardly to secure the straight-cut torch 21, and the locking screw 20 is loosened. The elastic thin plate is elastically readjusted outward, and the height of the straight cutting torch 21 can be removed or adjusted. The Torch angle adjustment fixing bracket 24 is rotatably connected to arc bracket 22 through pin axis 26, and curved bracket 22 is provided with a scale line to adjust the opening angle of the slot. . In use, the straight torch 21 is mounted in the slot of the bracket 23 and the angle adjustment bracket 24 of the torch 21, and is fixed by a locking screw 20, and then the bracket 23 of the straight torch 21 is along curved bracket 22.

The bevel cutter 200 is fixed to the operating platform 1 of the linear cutter 100. The opening angle of the bevel cutter 200 can be adjusted from 5 to 90 °. 30, 45, 60 and 90 ° are commonly used. Four opening holes are formed in the operating platform 1 to fix the opening cutter 200 to the operating platform 1 by screws. When using the straight torch 21, the movable support 9 can be removed. In addition, the height of the weight plate and roller of the device is very important, and should not be greater than the height of the cutting nozzle of the torch 21 (length of the straight cutting torch + the mounting device at the outlet).

As shown in Figures 13 to 17, the arc cutter of a straight torch 301 includes a conical seat 30, an adjustment lever 31 and an adjustment bracket 33. The upper end of the conical seat 30 is provided with a seat of guide 32. The lower end of the conical seat 30 is provided with a lower end 36. The guide seat 32 is equipped with an adjustment rod 31. At the rear of the adjustment rod 31 is fixed and adjusted by a screw clamp 25 on the guide seat 32. The front part of the rod 31 is attached to the base of the adjustment bracket 33. The base of the adjustment bracket 33 is fixed to the adjustment rod 31 by means of a fixing screw 25, The front end of the base of the adjusting bracket 33 is provided with a mounting seat 34 for mounting the straight-cut torch 21, and both ends of the mounting seat 34 are provided. A positioning slot is provided for fixing the torch straight 21. The two sides of the positioning slot are elastic thin plates, and the elastic thin plate is provided with a locking screw 20 to lock the straight torch 21. The locking screw 20 is tightened, and the The thin spring rod is contracted inward to fix the straight-cut torch 21, and the locking screw 20 is loosened. The elastic thin plate is elastically reset outwardly, and the height of the straight-cut torch 21 can be removed or adjusted. The adjustment lever 31 is provided with a scale line to adjust the radius of the cutting arc. The circular base at the lower end of the conical seat 30 serves for stabilization. The straight-cut torch arc cutter 301 is relatively simple to cut, as long as the straight-cut torch 21 is fixed in the mounting seat 34 with the locking screw 20, and the trim adjustment base 33 is moved to along the adjustment rod 31 to the desired position. To position the arc size, the punch drills at one point on the worktable and the bottom 36 of the conical seat 30 is placed at the drilled point and the straight-cut torch 21 is rotated to complete the arc cutting work. .

As shown in Figures 18 through 21, the! Crosscut torch 302 includes a clamping base 40, a spacer 41, a bearing 42, a connecting shaft 46, and an elastic clamping seat 43 of the transverse torch. The elastic clamping seat 43 is mounted to the clamping base 40 through the spacer 41, the bearing 42 and the connecting shaft 46. The Lower end surface of the clamping base 40 is fixed on the surface of the clamping plate. steel of the workpiece by the magnetic block 4, and the cross torch. The elastic clamp seat 43 is symmetrically arranged to secure the horizontal cutting torch. The elastic clamp seat 43 of the cross torch 302 is connected to the shaft 46 through a screw connection to replace the elastic clamp clamp of the cross torch of different specifications. The seat has 4 positioning grooves 45 evenly arranged on the outer circumference of the clamping base 40. When used, four points are found on the steel plate of the workpiece according to the four positioning grooves 45, and the four dots are clicked. After positioning, a straight line is made that intersects vertically. The point of intersection is the center of the circle. An awl is used to strike the center of the circle, and then a circle of any size is drawn on the workpiece with a compass, including the circle. exterior of! fixed seat 40. The outer circle of the fixing base 40 should be drawn, and it can be placed in the original position when in use.

When using the crosscut torch arc cutter 302, it is placed on the outer circle of the fixed seat 40 drawn on the steel plate of the workpiece, and fixed on the surface of the steel plate of the workpiece. work by magnetic block 4, and then the center of the circle is taken as the origin, and the cut size circle is used as the radius. Since the technical specifications of the crosscut torch! produced by each factory are inconsistent, the distance from the bottom surface of the cross-cutting torch, the elastic clamping seat 43 to the workpiece should not exceed 6.5 cm. Consider the gas line from the torch to the bottom of the 8.2 cm torch and add 3 mm to the steel plate of the part. Therefore, the straight portion of the spring piece 44 in the elastic clamping seat of the transverse torch is stressed as much as possible for adjustment. As can be seen, this device is designed to cut no larger than 6 cm and does not specify that these cuts be made at micro distances; furthermore, it does not include a mechanism to adjust and measure lengths, much less to make cuts to very short lengths.

All existing technologies and those described above have no way of making micro measurements, because they only use the measurement provided by the conventional cutting tool, therefore, to be able to define an exact cut at micro distances it is not possible. To have greater precision in the cut, the ability to perform a micro adjustment in the cutting guide is required and the ability to have a measurement of said micro adjustments and as these micro adjustments are carried out in the guide, it is relevant to implement a measurement system that has the advantage of only measuring the movement in the guide and being independent from the measurement of the conventional cutting tool.

As it has been seen, in conventional cutting tools, one of the most important aspects is to be able to cut the material to the desired dimension, for this, the user must be able to calibrate the cutting guide. In addition, in Conventional cutting tools always generate a margin of error. That is why a guide device was developed, it is intended to reduce this margin of error, through a micro adjustment and a relative measurement from one body to another body within its guide.

To demonstrate the characteristic details and additional advantages of the length measurement guide apparatus of the present invention, some of its preferred embodiments are described in detail below together with the accompanying figures as illustrative and non-limiting examples, where:

Figure 1 is an exploded perspective view of a fixed support (A) that supports a length measurement instrument, which form part of the length measurement guide-apparatus for exact cuts, according to the present invention.

Figures 2 and 3 are conventional perspective views of the fixed support (A) of the previous figure, in an assembled condition, where the way in which it supports the length measuring instrument is observed.

Figure 4 is a front view of the fixed support (A) already assembled, supported by the length measuring instrument.

Figure 5 is a top view of the fixed support (A) already assembled, supported by the length measuring instrument.

Figure 6 is a left side view of the fixed support (A) already assembled, supported by the length measuring instrument.

Figure 7 is a right side view of the fixed support (A) already assembled, supported by the length measuring instrument.

Figure 8 is an exploded top perspective view of a slidable support (B) that supports a longitudinal guide element; which are also part of the length measurement guide apparatus for exact cuts of the present invention.

Figure 9 is an exploded bottom perspective view of the sliding support (B) that supports the longitudinal guide element. Figure 10 is a conventional perspective view of the assembled detachable support (B) supporting the longitudinal guide element.

Figure 11 is a right side view of the removable support (B) assembled supporting the longitudinal guide element.

Figure 12 is a left side view of the assembled detachable support (B) supporting the longitudinal guide element.

Figure 13 is a front view of the removable support (B) assembled supporting the longitudinal guide element.

Figure 14 is a top view of the detachable support (B) assembled supporting the longitudinal guide element and with its jaw open.

Figure 15 is a top view of the removable support (B) assembled supporting the longitudinal guide element and with its jaw closed.

Figures 16 and 17 are different exploded perspective views of the components of the guiding apparatus of the present invention.

Figures 18 and 19 are different conventional perspective views of! guiding apparatus of the present invention, in an assembled condition.

Figure 20 is a front view of the guide apparatus of the present invention, in its assembled condition.

Figure 21 is a side view! left of the guide apparatus of the present invention, is its assembled condition.

Figure 22 is a right side view of the guiding apparatus according to the present invention, in its assembled condition.

Figure 23 is a bottom perspective view of the guide apparatus of the present invention, in its condition.

Figure 24 is a top view of the guiding apparatus according to the present invention, in its assembled condition.

Figures 25 and 26 are different views in conventional perspectives of the device-guide of the present invention, applied to an electric cutting machine.

Figure 27 is a front view of the guide apparatus in question, applied to the electric cutting machine.

Figure 28 is a left side view of the guiding apparatus according to the present invention, applied to the electric cutting machine. Figure 29 is a top view of said guide apparatus, applied to said electric cutting machine.

DETAILED DESCRIPTION OF THE INVENTION

Length measuring guide for exact cuts

A first object of the present invention is a length measuring guide apparatus, which can make small, very small, micro small, etc. length measurements with great accuracy. This device can make length measurements by itself or be useful in conventional machines, equipment, apparatus, tools, etc. that require precise length measurements; such as machines, equipment, apparatus, tools, etc., for cuts.

The length measurement guide apparatus for exact cuts of the present invention comprises the following parts: i) a length measurement instrument (6); ii) a fixed support (A) configured to support and actuate the length measuring instrument (6); iii) a rigid and longitudinal guide element (13} that indicates the exact place to make the cuts; iv) a sliding support (B) that supports the rigid and longitudinal guide element (13), slides on the fixed support ( TO); v) fixing means (10) that maintain the sliding of the removable support (B) in the fixed support (A); and vi) a fixing mechanism (2) that fixes the guide apparatus in some firm part. One embodiment of the guiding apparatus of the present invention is when the iongitude measuring instrument (6) measures lengths of at least 0.01 mm; such as a caliper, micrometer, dial gauge, interferometer, odometer, among others. A further embodiment of the guide apparatus of the present invention is when the fixed support (A) is made up of: i) a longitudinal base (14) in the form of a longitudinal square arranged in an inverted manner, with one of its longitudinal sides remaining external in a horizontal plane (15) and the other external longitudinal side in a vertical plane (16); ii) a rectangular, longitudinal and rigid rail (1) is fixed longitudinally on the horizontal side (15) of the longitudinal base (14), where said rail (1) must have its upper face completely flat and smooth; iii) a vertical support (17) is fixed perpendicularly on one of the ends of the smooth upper face of the rail (1); iv) a push element (4) that drives the sliding support (B), is supported at a certain height by the vertical support (17), parallel to the rail (1) and projected towards the opposite end of said rail ( 1 ); and v) a support (18) that supports the length measurement means (6), is also supported on the height of the thrust element (4), by the vertical support (17), and also arranged parallel to the rail (1) and the thrust element (4), and projected towards the free end of said rail (1).

One embodiment of the guide apparatus of the present invention is when the thrust element (4) is an endless screw with its respective handle (5). A preferred embodiment of the guiding apparatus is when the sliding support (B) is made up of: i) a sliding base in the shape of an "L" (3) which, on the lower face of its longest longitudinal portion (7), has a longitudinal channel (19) through which the rail (1) is introduced and slides longitudinally, and on its short longitudinal portion (7 ') one of the ends of the longitudinal guide element (13) is longitudinally fixed; ü) a contact piece (20) fixed vertically on the free end of the longest longitudinal portion of the sliding base (7); by means of this contact piece (20) the sliding support (B) is pushed by the pushing element (4) of the fixed support (A); and iii) an internally threaded hole (11) passes through the contact piece (20) at a height coinciding with the height of the thrust element (4), so that it penetrates through said hole (11) and through its handle (5) is pushed and thus pushes and moves the sliding base (3) on the rail (1), which in turn carries with it the guide element (13) that indicates the exact length indicated by the length measuring instrument (6),

One modality of the guide-apparatus in question is when the longitudinal channel (19) can be formed of a longitudinal clamp (8) with which the width of the longitudinal channel (19) is adjusted in order to be adaptable to any size of rail and to adapt to any support, machine, device, tool to which it is to be adapted. Said jaw (8) is longitudinally joined by means of transverse bars (8 ') inserted in the side of one of the edges of the long portion (7) of the sliding base (3); and it is provided with a handle with an endless screw (9) that crosses, above the longitudinal channel (19), the long longitudinal portion (7) until it connects and is fixed to the jaw (8) to allow a rigid adjustment.

Another embodiment of the guide apparatus according to the present invention is when a hollow piece (21) is optionally provided to fill the gap that remains between the contact piece (20) and the end of the guide element (13). It is preferred that this part (21) be hollow or of another shape that allows the push element (4) to pass through.

An embodiment of the apparatus-guide of the present invention is when it also comprises an indicator piece (12) of the chosen measure, which is connected at the vertex of the sliding base in the shape of an "L", next to the end of the guide element. (13). Another preferred embodiment of the guide device described in the present invention is when the fixing mechanism (2) is made up of at least one support that includes a pivoting lever that allows pressure on a support where the guide device is supported. ; said support can be a cutting machine, apparatus, or tool.

Application of the length measurement guide apparatus of the present invention. on a cutting machine.

The following exemplifies one of the many applications that the length measuring guide apparatus for exact cuts of the present invention could have.

When the length measuring guide apparatus is applied to a conventional table cutting machine (23) having a cutting disc (22) in a vertical position, it is coupled in the manner shown in Figures 25-29; where the vertical side (18) of the square base (14) is inserted in the guide groove (24) of the cutting machine (23), being able to fix said device-guide at the point where the approximate cutting measure of a object, by means of its fixing mechanism (2), and with the sliding support (B) of the guide device in question, the exact measure where the cut is to be made can be determined. It should be noted that the conventional rigid guide element (13) is arranged parallel to the cutting disc (22).

The precision that is achieved when using the device-guide of the present invention is achieved thanks to its two main supports (A and B) that interact with each other in the following way, the fixed support (A) that leads to the measuring instrument of length (6) is fixed directly in the guide groove (24) of the conventional cutting tool (23) and in turn the sliding support-guide (B) is mounted on the rail (1) of the support (A) allowing the free displacement in parallel and controlled form of the support (B) on the support (A), in turn, in the support (A) has its measuring instrument (6) that indicates the relative displacement distance of the support (B) with regarding i support (A); and by turning the handle (5) manually, the sliding support (B), which in turn carries the guide element (13), can be moved to very small distances, thus achieving more exact cuts. Method to make precise cuts, by using the hearing aid described above

Based on all of the above, when implementing and assembling the guide device of the present invention on a conventional cutting tool (23) to obtain precise cuts, the following steps are carried out: i) Position the indicator piece ( 12) based on the scale of the conventional cutting tool (23) to generate a base measurement. ii) Fix the bracket (A) using the fixing mechanism (2) to the conventional cutting tool (23). iii) Define a micro-adjustment using the handle (5) to position at the desired distance. iv) Fix the sliding bracket (B) in the desired position by actuating and adjusting the handle (9). v) Make a first cut of the material. vi) Measure the material to identify the real measure of the cut made by the tool. vii) Define an adjustment distance that allows adjusting the actual size of the cut material to the desired size. viii) Calibrate the measuring instrument (6) to 0. ix) Release the adjustment of the handle {9} to allow the free movement of the support (B). x) Move the sliding support (B) to a previously defined adjustment distance to adapt the device-guide to the actual required cutting distance, using the handle (5) and using the measuring mechanism (6) to know the distance of displacement. xi) Fix the sliding support (B) in the position defined by actuating and adjusting the handle (9); and make a second cut of material to obtain the cut of material with the exact measure desired.

By using the procedure described above with the guide device of the present invention, one has the advantage of being able to repeat said process as many times as the user wishes to adjust or correct the cut to the needs and degree of precision that is required, even in conventional cutting tools that due to their own wear and tear have lost the adjustment or calibration of their own measuring devices.

Claims

1. An apparatus-guide for measuring length for exact cuts, characterized in that it comprises; i) a length measuring instrument (6); ii) a fixed support (A) configured to support and actuate the length measuring instrument (6); iii) a rigid and longitudinal guide element (13) that indicates the exact place for making the cuts; iv) a sliding support (B) that supports the longitudinal guide element (13), slides on the fixed support (A); v) fixing means (10) that maintain the sliding of the sliding support (B) in the fixed support (A); and vi) a fixing mechanism {2} that fixes the guide device to some firm part.

2. The guiding apparatus of the preceding claim, wherein the length measuring instrument (6) measures lengths from, to! minus 0.01 mm.

3. The guiding apparatus according to the preceding claim, wherein the measuring instrument is selected from the following group: caliper, micrometer, dial gauge, interferometer and odometer.

4. The guiding apparatus according to claim 1, wherein the fixed support (A) is made up of: i) a longitudinal base (14) in the shape of a longitudinal square arranged in an inverted manner, one of its longitudinal sides remaining external in a horizontal plane (15) and the other external longitudinal side in a vertical plane (16); ii) a rectangular, longitudinal and rigid rail (1) is fixed longitudinally on the horizontal side (15) of the longitudinal base (14), where said rail (1) must have its upper face completely flat and smooth;

III) a vertical support (17) is fixed perpendicularly on one of the ends of the smooth upper face of the rail (1); iv) a push element (4) that drives the sliding support (B), is supported at a certain height by the vertical support (17), parallel to the rail (1) and projected towards the opposite end of said rail ( 1); and v) a support (18) that supports the length measurement means (6), is also supported on the height of the thrust element (4), by the vertical support (17), and also arranged parallel to the rail (1) and the thrust element (4), and projected towards the free end of said rail (1).

5. The guiding apparatus according to the preceding claim, wherein the thrust element (4) is an endless screw with its respective handle (5).

6, The device-guide as written in claim 1, where the sliding support (B) is structured of: i) a sliding base in the shape of an "L" (3) that, on the lower face of its portion longest longitudinal channel (7), it has a longitudinal channel (19) through which the rail (1) is introduced and slides longitudinally; and on its short longitudinal portion (7 ') one of the ends of the longitudinal guide element (13) is longitudinally fixed; ii) a contact piece (20) fixed vertically on the free end of the longest longitudinal portion of the sliding base (7); by means of this contact piece (20) the sliding support (B) is pushed by the pushing element (4) of the fixed support (A); and iii) an internally threaded hole (11) passes through the contact piece (20) at a height coinciding with the height of the thrust element (4), so that it penetrates through said hole (11) and through its crank (5) is pushed and thus pushes and moves the sliding base (3) on the rail (1), which in turn carries with it the rigid and longitudinal guide element (13) that indicates the exact length indicated by the instrument length measuring gauge (8).

7. The guiding apparatus of the preceding claim, characterized in that it comprises: i) a longitudinal clamp (8) for shaping and regulating the width of the longitudinal channel (19); wherein said jaw (8) is longitudinally joined by means of transverse bars (8 ') inserted in the side of one of the edges of the long portion (7) of the sliding base (3); and ii) a handle with an endless screw (9) that crosses, above the longitudinal channel (19), the long longitudinal portion (7) until it connects and is fixed to the jaw (8) to allow a rigid adjustment,

8. The guiding apparatus of claims 6 and 7, characterized in that it further comprises a hollow piece (21) in the space that remains between the contact piece (20) and the end of the guide element (13).

9. The device-guide of claims 6 and 7, characterized in that it also comprises an indicator piece (12) of the chosen measure, which is connected to the vertex of the sliding base in the shape of an "L", next to the end of guide element (13).

The guiding apparatus of claim 1, wherein the fixing mechanism (2) is made up of, at least, a support that includes a plvoting lever that allows pressure to be exerted on a support where the guiding apparatus is supported.

11. The guiding apparatus of the preceding claim, wherein the support is: a cutting machine, apparatus, or tool.

12. A method for making precise cuts, using the length measurement guide apparatus, according to any of the preceding claims, characterized in that it comprises: i) positioning the indicator piece (12) according to the scale of the cutting tool conventional (23) to generate a base measurement; ii) fixing the support (A) using the fixing mechanism (2) to the conventional cutting tool (23); iii) define a micro-adjustment using the handle (5) to position at the desired distance; iv) fix the support (B) in the desired position by actuating and adjusting the handle (9); v) making a first cut of the material; vi) measure the material to identify the actual measurement! of the cut made by the tool; vii) define an adjustment distance that allows adjusting the actual size of the cut material to the desired size; viii) calibrating the measuring instrument (6) to 0; ix) release the adjustment of the handle (9) to allow the free movement of the support (B); x) move the sliding support (B) to a previously defined adjustment distance to adapt the device-guide to the actual required cutting distance, using the handle (5) and using the measuring mechanism (6) to know the distance of displaced; and xi) fixing the sliding support (B) in the position defined by actuating and adjusting the handle (9); and perform a second cut of material to obtain the cut of material with the exact measure desired.