Track angle adjustment tool and system

Abstract

The utility model relates to the field of track saws, and in particular to a track angle adjustment tool and system. It includes: an elastic protrusion and a positioning groove that can be relatively matched with each other; a rotating member that can rotate, and one of the elastic protrusion and the positioning groove is arranged on the rotating member. The track angle adjustment tool provided by the present application is provided with an elastic protrusion and a positioning groove that can be relatively matched with each other, and at least one of the elastic protrusion and the positioning groove is arranged on the rotating member, so that during the rotation process, the rotating member can stay at a specific angle by the elastic protrusion extending into the positioning groove, thereby meeting the use needs of accurately positioning to a specific angle.

Description

Technical Field

[0001] The utility model relates to the field of track saws, in particular to a track angle adjustment tool and system. Background Art

[0002] When performing cutting operations, a track saw is often used for straight-line cutting. The track saw includes a track plate and a table saw that can move directionally along the track plate. The track plate has a plurality of concave and convex parts distributed longitudinally. When working, the track plate is first fixed to the work surface or the workpiece to be cut, and then the table saw is placed on the concave and convex parts of the track plate. During the longitudinal movement of the table saw along the concave and convex parts, the cutting blade is pressed down to cut the wood to be cut.

[0003] Technicians in this field have discovered during the use of track saws that existing track saws only cut in a single direction and require the use of other angle measuring instruments to adjust the track plate to different angles in order to cut plates at different angles. However, when using an angle measuring instrument for adjustment, the adjustment accuracy is not high due to factors such as parallax, making it difficult to achieve precise cutting at a specific angle. Utility Model Content

[0004] The utility model aims to overcome the problem in the prior art that the angle adjustment accuracy of the track plate is low and it is difficult to achieve precise cutting at a specific angle, and to provide a track angle adjustment tool and system.

[0005] In a first aspect, the utility model provides a track angle adjustment tool, comprising:

[0006] Elastic protrusions and positioning grooves capable of relatively concave-convex matching;

[0007] The rotating member is rotatable, and one of the elastic protrusion and the positioning groove is arranged on the rotating member.

[0008] The present application provides a track angle adjustment tool, which is provided with an elastic protrusion and a positioning groove that can fit together, and one of the elastic protrusion and the positioning groove is provided on a rotating part, so that during the rotation process, the rotating part can stay at a specific angle by the elastic protrusion extending into the positioning groove, thereby meeting the need for accurate positioning at a specific angle.

[0009] Preferably, the track angle adjustment tool further comprises: a base, the rotating member is rotatably connected to the base, and the other of the elastic protrusion and the positioning groove is arranged on the base;

[0010] The locking structure can lock the relative rotation between the rotating member and the base.

[0011] The base is provided so that the rotating part can be moved with the base to different usage scenarios to meet the tool requirements; the locking structure can lock the rotating part with the base after the angle is adjusted, thereby fixing the cutting angle of the track plate.

[0012] Preferably, the number of the positioning grooves is at least two, and at least some of the positioning grooves are coaxially arranged with the rotating member;

[0013] At least part of the positioning groove cooperates with the concave-convex of the elastic protrusion, so that the rotating member can stay at a specific angle relative to the base.

[0014] During operation, the elastic protrusion can be fixed on the rotating member or the base. During the rotation of the rotating member, the elastic protrusion can extend into at least two positioning grooves to stop the rotating member at at least two specific angles.

[0015] Preferably, the locking structure comprises:

[0016] A knob having an internal thread;

[0017] A locking screw passes through the rotating part, one end of which is limited to the base, and the other end extends out of the rotating part and cooperates with the knob thread;

[0018] The arc groove is provided on the rotating part to allow the locking screw to move relative to the rotating part.

[0019] Preferably, a notch for accommodating the clamp is provided on the base; a side of the notch close to the rotating member is in an arc shape coaxial with the rotating member.

[0020] A gap is left on the side of the base close to the workpiece to be cut to accommodate a clamp [such as an F clamp]. The clamp can be used to assist in fixing the track plate and the workpiece to be cut, which helps to improve cutting accuracy.

[0021] After the clamp is fixed to the track plate, the clamp can also rotate with the rotating part, and the movement trajectory of the clamp is approximately an arc coaxial with the rotating part. Therefore, the notch is set in an arc shape close to one side of the rotating part, which can meet the clamp movement needs while saving the space occupied by the notch.

[0022] Preferably, the base is also provided with a centering part, which can be used to find the diameter line of the cylinder, and the centering part includes:

[0023] A first edge and a second edge are symmetrically arranged;

[0024] The positioning structure is used for positioning the ruler and can position one edge of the ruler on a symmetric plane between the first edge and the second edge.

[0025] Finding the center can be used to find the diameter line and center point of the cylinder. When working, the arc edge of the cylinder is simultaneously abutted against the first edge and the second edge. The positioning structure locates the ruler and places the ruler on the end face of the cylinder. The diameter line of the cylinder can be obtained by drawing a line along the edge of the ruler. Repeat the above steps to draw another diameter line. The intersection of the two diameter lines is the center point of the cylinder.

[0026] Preferably, the positioning structure is a centering groove, and one groove edge of the centering groove is located on a symmetric plane between the first edge and the second edge;

[0027] and / or,

[0028] The base is provided with a ruler storage slot, which is used to store a ruler, and the bottom of the ruler storage slot is provided with at least one magnetic attraction component.

[0029] Preferably, a convex piece is provided on the base, the convex piece can overlap on the table or the piece to be cut, and the convex piece is arranged away from the rotating piece;

[0030] And / or, the base and the rotating member are respectively provided with an angle scale and a pointer;

[0031] And / or, the surface of the base has a concave area, the rotating member is arranged in the concave area, and the surface of the rotating member facing away from the base is flush with the base;

[0032] And / or, at least two inspection holes are provided on the base, all the inspection holes include at least two different hole diameters, and the inspection holes are used to inspect the specifications of the column.

[0033] The convex piece can assist in supporting the base, which is beneficial to maintaining the stability of the base, and can support the base together with the track plate so that the surface of the rotating part is flush with the table top or the surface of the part to be cut.

[0034] In the second aspect, the utility model provides a track angle adjustment system, including a track plate, a workpiece to be cut and a track angle adjustment tool as described above, wherein the side of the base abuts against the edge of the workpiece to be cut, the track plate portion overlaps the workpiece to be cut, the track plate portion is limited to a rotating part, and the track plate can rotate with the rotating part.

[0035] The present application provides a track angle adjustment system, which uses the track angle adjustment tool as described above, and can conveniently and accurately adjust the track plate to the required angle by extending the elastic protrusion into the positioning groove, so that the track saw can cut along a specific angle to meet the cutting needs.

[0036] Preferably, the track angle adjustment system further comprises an F clamp, the F clamp clamps the workpiece to be cut, and the upper part of the F clamp is engaged and connected with the bottom of the track plate;

[0037] and / or,

[0038] A limiting component is arranged on the side of the rotating member facing away from the base, and the limiting component is used for limiting the track plate.

[0039] During operation, the F clamp can be used to clamp the workpiece to be cut and connect it with the track plate, thereby fixing the track plate and the workpiece to be cut to improve cutting accuracy.

[0040] Compared with the prior art, the utility model has the following beneficial effects:

[0041] 1. The present application provides a track angle adjustment tool, which is provided with an elastic protrusion and a positioning groove that can be matched with each other, and one of the elastic protrusion and the positioning groove is provided on the rotating member, so that during the rotation process, the rotating member can stay at a specific angle by the elastic protrusion extending into the positioning groove, thereby meeting the use requirement of accurately positioning at a specific angle;

[0042] 2. The present application provides a track angle adjustment system, which uses the track angle adjustment tool as described above, and can conveniently and accurately adjust the track plate to the required angle by extending the elastic protrusion into the positioning groove, so that the track saw can cut along a specific angle to meet the cutting needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 This is a schematic diagram of the structure of the track angle adjustment tool of the utility model;

[0044] Figure 2 The structure diagram of the rotating part of the utility model is shown in FIG. Figure 1 ;

[0045] Figure 3 It is a structural schematic diagram of the base of the utility model;

[0046] Figure 4 for Figure 3 Detailed drawing of middle section A;

[0047] Figure 5 This is a front view of the track angle adjustment tool of the utility model;

[0048] Figure 6 It is a rear view of the track angle adjustment tool of the utility model;

[0049] Figure 7 The structure diagram of the rotating part of the utility model is shown in FIG. Figure 2 ;

[0050] Figure 8 It is a front view of the rotating member of the utility model;

[0051] Fig. 9 Schematic diagram of the track angle adjustment system of the utility model Figure 1 ;

[0052] Fig.10 Schematic diagram of the track angle adjustment system of the utility model Figure 2 ;

[0053] Fig.11 This is a schematic diagram of the structure of the F clamp of the utility model;

[0054] Fig.12 This is a schematic diagram of finding the center of the cylinder described in the utility model Figure 1 ;

[0055] Fig.13 This is a schematic diagram of finding the center of the cylinder described in the utility model Figure 2 .

[0056] Markings in the figure:

[0057] 1-Rotating parts;

[0058] 11- positioning groove;

[0059] 12- elastic protrusion;

[0060] 13-locking structure;

[0061] 131-knob; 132-locking screw; 133-arc groove;

[0062] 14-limiting component;

[0063] 141-first limiting member; 142-second limiting member;

[0064] 15-angle scale;

[0065] 16-pointer;

[0066] 17-limiting cover;

[0067] 171-positioning pin; 172-positioning hole;

[0068] 2- Base;

[0069] 21-Find the middle;

[0070] 211-first edge; 212-second edge; 213-centering groove;

[0071] 22-Ruler storage slot;

[0072] 221-ruler; 222-magnetic element;

[0073] 23-Gap;

[0074] 24- convex piece;

[0075] 25-gauge hole;

[0076] 26-suspension hole;

[0077] 27-grip cavity;

[0078] 3-Track plate;

[0079] 31-F clamp;

[0080] 311-upper clamping member; 312-lower clamping member;

[0081] 4-Parts to be cut;

[0082] 5- Cylinder. DETAILED DESCRIPTION

[0083] The present invention is further described in detail below in conjunction with specific embodiments. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0084] Unless otherwise specified, in the description of the specific embodiments of the present utility model, the expression terms indicating the orientation or position relationship such as "upper", "lower", "left", "right", "center", "inside", "outside", etc. are all based on the expression of the orientation or position relationship shown in the drawings, or the orientation or position relationship when the product / equipment / device of the utility model is usually used. These terms of orientation or position relationship are only for the convenience of describing the scheme of the utility model or simplifying the description in the specific embodiments, so that technicians can quickly understand the scheme, rather than indicating or implying that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation on the present utility model.

[0085] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simplified to mean that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the solution of the utility model.

[0086] In addition, the expressions “first”, “second”, “third”, etc., which appear in the terms, are merely used to distinguish the description of the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.

[0087] In addition, in the description of the embodiments of the present invention, "several", "multiple" and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0088] In addition, in the description of the technical solution of the utility model, unless otherwise clearly specified / defined / restricted, the terms "set", "install", "connect", "connected", "provided with", "laid", and "arranged" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, and can be welding, riveting, bolting, threading, and other commonly used connection means in the field. This connection can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal communication of two components.

[0089] Example 1

[0090] This embodiment provides a track angle adjustment tool, such as Figure 1-8 As shown, it includes an elastic protrusion 12, a positioning groove 11 and a rotating member 1, wherein the elastic protrusion 12 and the positioning groove 11 can be relatively matched, the rotating member 1 can rotate, and one of the elastic protrusion 12 and the positioning groove 11 is arranged on the rotating member 1.

[0091] The elastic protrusion 12 is elastic and can be squeezed to reduce its protruding height. The elastic protrusion 12 can be made of rubber, elastic steel, elastic plastic or other polymers. In this embodiment, a spring bead is used, such as Figure 3-4 As shown; the positioning groove 11 is a groove-type structure, and the protruding portion of the elastic protrusion 12 can partially extend into the positioning groove 11 to achieve a concave-convex fit, and there is a resistance between the elastic protrusion 12 and the positioning groove 11 under the concave-convex fit to prevent the two from being separated. Due to the existence of this resistance, when separating the elastic protrusion 12 and the positioning groove 11 under the concave-convex fit, a relatively large thrust is required, so that whether the elastic protrusion 12 and the positioning groove 11 are aligned can be judged according to the difficulty of pushing.

[0092] The rotating member 1 is connected to the base 2 for fixed-axis rotation. The rotating member 1 can be a plate member. One of the elastic protrusion 12 and the positioning groove 11 is set on the rotating member 1, and the other is set on the component that rotates relative to the rotating member 1. The positions of the elastic protrusion 12 and the positioning groove 11 are reasonably set so that during the rotation of the rotating member 1 relative to the component, the elastic protrusion 12 and the positioning groove 11 can be matched with each other in a concave-convex manner. It can be judged whether the rotating member 1 is rotated to a preset specific angle according to the difficulty of pushing, and the resistance between the elastic protrusion 12 and the positioning groove 11 under the concave-convex matching can make the rotating member 1 stay at the specific angle, thereby achieving the purpose of precise positioning.

[0093] To sum up, the present application provides a track angle adjustment tool, which is provided with an elastic protrusion 12 and a positioning groove 11 that can fit together, and one of the elastic protrusion 12 and the positioning groove 11 is provided on the rotating member 1, so that during the rotation process, the rotating member 1 can stay at a specific angle by extending the elastic protrusion 12 into the positioning groove 11, thereby meeting the need for accurate positioning at a specific angle.

[0094] Preferably, the track angle adjustment tool further comprises a base 2, the rotating member 1 is rotatably disposed on the base 2, and the other of the elastic protrusion 12 and the positioning groove 11 is disposed on the base 2. By arranging the rotating member 1 on the base 2, the rotating member 1 and the base 2 can be moved together to different use scenarios and repeatedly applied to different cutting operations, thereby meeting the tool requirements.

[0095] The base 2 can be a plate or a combination, etc. The base 2 has a mounting surface for the rotating member 1 to be installed and rotated. The elastic protrusion 12 and the positioning groove 11 are arranged on two opposite surfaces of the base 2 and the rotating member 1. There are many arrangements, among which the first arrangement is: the base 2 is provided with an elastic protrusion 12, and the rotating member 1 is provided with a positioning groove 11; the second arrangement is: the rotating member 1 is provided with an elastic protrusion 12, and the positioning groove 11 is provided on the base 2; the third arrangement is: the base 2 and the rotating member 1 are provided with both the elastic protrusion 12 and the positioning groove 11.

[0096] The rotational cooperation between the base 2 and the rotating member 1 can be achieved by sleeve-arranging the rotating member 1 on the rotating shaft. The rotating shaft can be a solid cylinder, a symmetrically arranged and elastic buckle, or an annular protrusion. In order to improve the tightness of the connection between the base 2 and the rotating member 1 and reduce the relative displacement, Figure 2-3 As shown, in this embodiment, an annular protrusion is provided on the base 2, and the rotating member 1 is sleeved on the annular protrusion and can rotate along the annular protrusion. It can be understood that the annular protrusion can lift the rotating member 1 to avoid the bottom surface of the rotating member 1 from fitting against the base 2, so that the rotating member 1 can rotate smoothly.

[0097] In order to prevent the rotating member 1 from falling out of the base 2, a limit cover 17 can be provided and the limit cover 17 can be covered on the rotating member 1; specifically, a threaded hole can be provided on the limit cover 17, two positioning holes 172 can be opened on the base 2, and two positioning pins 171 are correspondingly provided at the bottom of the limit cover 17. After the positioning pins 171 are inserted into the positioning holes 172, a screw is used to penetrate into the base 2 from the bottom of the base 2 and cooperate with the limit cover 17 thread. By screwing the screw, the limit cover 17 squeezes the rotating member 1. In addition to preventing the rotating member 1 from falling out of the base 2, the rotation damping between the rotating member 1 and the base 2 can also be increased, thereby facilitating the precise adjustment of the rotation angle of the rotating member 1.

[0098] The annular protrusion may be a plastic ring or a rubber ring; the annular protrusion may also be arranged on the rotating member 1, and the base 2 is sleeved on the annular protrusion to achieve rotational fit.

[0099] In some usage scenarios, the base 2 needs to abut against the edge of a workbench or a piece to be cut 4, which requires the base 2 to have a side abutment portion, and the side abutment portion needs to have a certain thickness and length to reduce the swing during abutment, so that the abutment can be carried out smoothly; as for the thickness, in general use, the track plate 3 is connected to the rotating part 1, and the track plate 3 can support the base 2 in the thickness direction, so the thickness requirement is not high; as for the length, the side abutment portion is required to have a larger size in the longitudinal direction, but it does not need to abut continuously, and intermittent abutment can also limit the swing of the base 2.

[0100] Preferably, in order to make the upper surface of the rotating part 1 flush with the table top of the workbench or the surface of the workpiece 4 to be cut, a protrusion 24 is provided on the base 2, and the protrusion 24 is arranged away from the rotating part 1, one end of the protrusion 24 is fixedly connected to the base 2, and the other end extends out of the base 2; during operation, the protrusion 24 can be overlapped on the table top or the workpiece 4 to be cut, and the base 2 is jointly supported by the protrusion 24 and the track plate 3.

[0101] The protrusion 24 can be a metal sheet and fastened by screws; the position away from the rotating member 1 refers to the position on the base 2 that is laterally spaced from the rotating member 1 [in this embodiment, the longitudinal direction refers to the direction from the rotating member 1 to the part to be cut 4 in the working state, and the transverse direction is perpendicular to the longitudinal direction and the thickness direction of the base 2].

[0102] Preferably, a recessed area can be provided on the base 2, and the rotating member 1 is provided in the recessed area, and the surface of the rotating member 1 facing away from the base 2 is flush with the base 2, so that the surfaces of the base 2 and the rotating member 1 can jointly abut the track plate 3, which is beneficial to reduce the swing of the track plate 3 relative to the base 2.

[0103] The track angle adjustment tool also includes a locking structure 13, which is used to lock or release the relative rotation of the rotating member 1 and the base 2. The cutting angle of the track plate 3 can be fixed by locking the rotating member 1 and the base 2 after the angle adjustment.

[0104] The locking structure 13 may be a pressing piece fixed to the base 2, which can selectively press the rotating member 1 to switch between the locked and released states; the locking structure 13 may also be a knob 131 and a locking screw 132 that can be threadedly matched, such as Figure 2-3 As shown, a through hole can be provided on the base 2 and a locking screw 132 can be inserted through the through hole. The aperture of the through hole is smaller than the size of the nut. The locking screw 132 has one end of a nut which is limited to the base 2, and the other end thereof extends out of the surface of the base 2 and penetrates the rotating member 1. A knob 131 with an internal thread is used to threadably cooperate with the locking screw 132. The knob 131 can abut against the rotating member 1, and a slot is provided on the rotating member 1 for the locking screw 132 to move relative to the rotating member 1. The base 2 and the rotating member 1 can be pressed together by tightening the knob 131 to achieve a locking effect, and the base 2 and the rotating member 1 can also be loosened by loosening the knob 131 so that the rotating member 1 can rotate relative to the base 2.

[0105] Since the movement trajectory of the locking screw 132 relative to the rotating member 1 is arc-shaped, the slot on the rotating member 1 can be an arc-shaped slot 133; one end of the locking screw 132 is limited to the base 2, which can also be understood as the locking screw 132 is directly fixed on the base 2.

[0106] A limiting assembly 14 is also provided on the side of the rotating member 1 away from the base 2. The limiting assembly 14 can limit the track plate 3 in at least one direction so that the track plate 3 rotates with the rotating member 1; Figure 7 As shown, based on the structural features of the track plate 3, in this embodiment, the limit assembly 14 includes a first limit member 141 and a second limit member 142. The first limit member 141 has a C-shaped groove that can be used to clamp the side of the track plate 3, and the second limit member 142 is a T-shaped structure that can clamp the downward opening groove in the track plate 3; through the cooperation of the first limit member 141 and the second limit member 142, the movement of the track plate 3 in its width direction can be limited, so that it can follow the rotating member 1 to rotate to the required angle.

[0107] Of course, the limiting component 14 has many different forms, and this embodiment only cites one of them for reference. The structural form of the limiting component 14 should be compatible with the structure of the track plate 3 to achieve a better limiting effect.

[0108] In one or several embodiments, the number of the positioning grooves 11 is at least two, at least some of the positioning grooves 11 are coaxially arranged with the rotating member 1, and at least some of the positioning grooves 11 cooperate with the elastic protrusions 12 to enable the rotating member 1 to stay at a specific angle relative to the base 2.

[0109] like Figure 2-3 As shown, in this embodiment, the number of elastic protrusions 12 is one and the elastic protrusion 12 is arranged on the base 2. When the rotating member 1 rotates relative to the base 2, the movement trajectory of the elastic protrusion 12 on the rotating member 1 is an arc coaxial with the rotating member 1. A plurality of positioning grooves 11 can be arranged at intervals on this arc trajectory to meet the requirement that the rotating member 1 can stay at multiple different rotation angles.

[0110] For the track saw, the specific angles include integer degrees with a modulus of 10°, such as 0°, 10°, 20°, 30°... and also include a specific 22.5°, so when setting the positioning groove 11, the arrangement can be based on these specific angles; for example, in this embodiment, the arrangement of the positioning groove 11 can enable the track plate 3 to be accurately positioned to 0°, 10°, 20°... up to 60° in the left and right rotation directions, and 22.5° in the left and right rotation directions.

[0111] The rotating member 1 is not limited to a complete circle. On the contrary, since the required adjustment angle of the track plate 3 is limited and in order to facilitate the removal of the rotating member 1 from the base 2 later, the rotating member 1 is preferably a combination of a small radius circle and a large radius arc, such as Figure 5 , 7 , as shown in Figure 8.

[0112] Preferably, the base 2 and the rotating member 1 are provided with an angle scale 15 and a pointer 16 respectively; the angle of the rotating member 1 relative to the base 2 can be directly read by setting the angle scale 15 and the pointer 16, so as to provide a reference for rotating the track plate 3. Specifically, the angle scale 15 can be provided on the base 2, and the pointer 16 can be provided at a corresponding position of the rotating member 1; or the angle scale 15 can be provided on the rotating member 1, and the pointer 16 can be provided at a corresponding position of the base 2.

[0113] In one or more embodiments, the base 2 is provided with a notch 23 for accommodating the clamp, such as Figure 1 , 3 As shown in FIGS. 5 and 5 , the notch 23 is arranged on one side of the base 2 close to the workpiece 4 to be cut, that is, between the rotating member 1 and the workpiece 4 to be cut in the working state; the notch 23 can accommodate a clamp for auxiliary fixing of the track plate 3 and the workpiece 4 to be cut, so as to maintain a firm connection between the track plate 3 and the workpiece 4 to be cut, thereby improving the cutting accuracy.

[0114] It can be understood that after the clamp is fixed to the track plate 3, the clamp can rotate with the rotating part 1, and the movement trajectory of the clamp is approximately an arc coaxial with the rotating part 1. From two aspects of saving the space occupied by the notch 23 and realizing the movement of the clamp, the side of the notch 23 close to the rotating part 1 can be set to an arc coaxial with the rotating part 1.

[0115] In one or more embodiments, the base 2 is further provided with a centering portion 21, which can be used to find the diameter line of the cylinder 5; the centering portion 21 includes a first edge 211, a second edge 212 and a positioning structure, wherein the first edge 211 and the second edge 212 are symmetrically arranged along the symmetry plane, and the positioning structure is used to position the ruler 221, and can position one edge of the ruler 221 on the symmetry plane of the first edge 211 and the second edge 212. During operation, the arc surface of the cylinder 5 is simultaneously abutted against the first edge 211 and the second edge 212, the positioning structure is used to position the ruler 221 and the ruler 221 is placed on the end face of the cylinder 5, and a line is drawn along the edge of the ruler 221 to obtain the diameter line of the cylinder 5, and the above steps are repeated to draw another diameter line, and the intersection of the two diameter lines is the center point of the cylinder 5.

[0116] The positioning structure can be a fixing member such as a buckle, or a centering groove 213 provided on the surface of the base 2. Figure 12-13 As shown, one groove edge of the centering groove 213 is located on the symmetry plane between the first edge 211 and the second edge 212; when working, one edge of the ruler 221 is placed against the groove edge, and the diameter line of the cylinder 5 can be drawn based on the placed edge.

[0117] It can be understood that the symmetry plane is an imaginary plane. Preferably, the symmetry plane is perpendicular to the surface of the base 2. Considering that the tip of the marker pen needs to occupy a certain width, the edge of the ruler 221 can slightly deviate from the symmetry plane.

[0118] Preferably, the first edge 211 and the second edge 212 have a certain thickness, and the first edge 211 and the second edge 212 are perpendicular to the surface of the base 2; such a configuration enables the surface of the base 2 to be perpendicular to the axis of the cylinder 5 when the first edge 211 and the second edge 212 simultaneously abut against the arc edge of the cylinder 5, so that when the ruler 221 is placed against the surface of the base 2, the diameter line of the cylinder 5 can be accurately located.

[0119] like Figure 5 As shown, since the angle between the first edge 211 and the second edge 212 is less than 180°, a spacing space is reserved on the side of the first edge 211 and the second edge 212 close to the rotating member 1, and the base 2 in the spacing space can be hollowed out to form a gripping cavity 27 for fingers to grip.

[0120] Preferably, the base 2 is provided with a ruler storage slot 22, such as Figure 5 As shown, the ruler storage groove 22 can be arranged between the rotating member 1 and the first edge 211 and the second edge 212. By arranging at least one magnetic member 222 [such as a magnet] at the bottom of the ruler storage groove 22, a steel ruler or a ruler 221 embedded with ferromagnetic material can be fixed in the ruler storage groove 22 through the magnetic member 222, so as to facilitate quick access when centering the cylinder 5 and performing other marking or measuring operations.

[0121] Ferromagnetic material is a material that can be attracted by a magnet; the magnetic attraction member 222 may also be disposed on the ruler 221 , and the ferromagnetic material may be disposed in the ruler storage slot 22 .

[0122] In one or more embodiments, at least two inspection holes 25 are provided on the base 2, and all the inspection holes 25 include at least two different hole diameters. The inspection holes 25 are used to inspect the specifications of the column.

[0123] like Figure 5 As shown, the gauge hole 25 is a through hole set on the base 2, which is generally a circular cross-section, but can also be set to a square cross-section as needed; each gauge hole 25 has a marked aperture size, and tools such as drill bits and corks can be inserted into the gauge hole 25 of similar size, so as to quickly determine the size or range of tools such as drill bits and corks.

[0124] In this embodiment, eight circular gauge holes 25 with different apertures are provided, including 12 mm, 10 mm, 8 mm, 6 mm, 1 / 4 inch, 5 / 16 inch, 3 / 8 inch, and 1 / 2 inch; of course, gauge holes 25 of other sizes may also be provided.

[0125] Preferably, a hanging hole 26 is provided on the base 2 to facilitate hanging and storing the track angle adjustment tool.

[0126] Example 2

[0127] This embodiment provides a track angle adjustment system, such as Figure 9-11 As shown, it includes a track plate 3, a workpiece 4 to be cut and a track angle adjustment tool as described in Example 1, the side of the base 2 abuts against the edge of the workpiece 4 to be cut, the track plate 3 is partially overlapped on the workpiece 4 to be cut, and the track plate 3 is partially limited by a limit assembly 14 on the rotating part 1. The track plate 3 can rotate with the rotating part 1, and the rotation angle can be indicated according to the angle scale 15 and the pointer 16 on the base 2 and the rotating part 1.

[0128] Due to the concave-convex fit between the elastic protrusion 12 and the positioning groove 11, the track plate 3 can be accurately positioned and stay at a specific angle, so that the track plate 3 can be conveniently and accurately adjusted to the required angle, allowing the track saw to cut along a specific angle to meet cutting needs.

[0129] Preferably, the track angle adjustment system further comprises an F clamp 31, which can clamp the workpiece 4 to be cut. Fig.11 As shown, the F clamp 31 includes an upper clamping member 311 and a lower clamping member 312, through which the workpiece 4 to be cut can be clamped, or the workpiece 4 to be cut and the workbench can be clamped; the upper clamping member 311 of the F clamp 31 can extend into the track plate 3 and be engaged with the bottom of the track plate 3, thereby further fixing the track plate 3 and the workpiece 4 to be cut and improving the cutting accuracy.

[0130] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A track angle adjustment tool, characterized in that: include: An elastic protrusion (12) and a positioning groove (11) capable of relatively concave-convex matching; The rotating member (1) is rotatable, and one of the elastic protrusion (12) and the positioning groove (11) is arranged on the rotating member (1).

2. The track angle adjustment tool according to claim 1, characterized in that: Also includes: A base (2), the rotating member (1) being rotatably connected to the base (2), and the other of the elastic protrusion (12) and the positioning groove (11) being arranged on the base (2); The locking structure (13) is capable of locking the relative rotation between the rotating member (1) and the base (2).

3. The track angle adjustment tool according to claim 2, characterized in that: The number of the positioning grooves (11) is at least two, and at least some of the positioning grooves (11) are coaxially arranged with the rotating member (1); The concave-convex cooperation between at least a portion of the positioning groove (11) and the elastic protrusion (12) can enable the rotating member (1) to stay at a specific angle relative to the base (2).

4. The track angle adjustment tool according to claim 2, characterized in that: The locking structure (13) comprises: A knob (131) having an internal thread; A locking screw (132) passes through the rotating member (1), one end of which is limited to the base (2), and the other end of which extends out of the rotating member (1) and is threadedly engaged with the knob (131); An arc-shaped groove (133) is provided on the rotating member (1) to allow the locking screw (132) to move relative to the rotating member (1).

5. The track angle adjustment tool according to claim 2, characterized in that: The base (2) is provided with a notch (23) for accommodating a clamp; The side of the notch (23) close to the rotating member (1) is in an arc shape coaxial with the rotating member (1).

6. The track angle adjustment tool according to claim 2, characterized in that: The base (2) is also provided with a centering portion (21), which can be used to find the diameter line of the cylinder (5). The centering portion (21) includes: A first edge (211) and a second edge (212) that are symmetrically arranged; The positioning structure is used for positioning the ruler (221), and is capable of positioning one edge of the ruler (221) on a symmetrical plane between the first edge (211) and the second edge (212).

7. The track angle adjustment tool according to claim 6, characterized in that: The positioning structure is a centering groove (213), and a groove edge of the centering groove (213) is located on a symmetric plane between the first edge (211) and the second edge (212); and / or, The base (2) is provided with a ruler storage groove (22), the ruler storage groove (22) is used to store a ruler (221), and at least one magnetic attraction component (222) is provided at the bottom of the ruler storage groove (22).

8. The track angle adjustment tool according to any one of claims 2 to 7, characterized in that: The base (2) is provided with a convex piece (24), the convex piece (24) can overlap on a table or a piece to be cut (4), and the convex piece (24) is arranged away from the rotating piece (1); And / or, the base (2) and the rotating member (1) are respectively provided with an angle scale (15) and a pointer (16); And / or, the surface of the base (2) has a concave area, the rotating member (1) is arranged in the concave area, and the surface of the rotating member (1) facing away from the base (2) is flush with the base (2); And / or, the base (2) is provided with at least two inspection holes (25), all of the inspection holes (25) include at least two different hole diameters, and the inspection holes (25) are used to inspect the specifications of the column.

9. A track angle adjustment system, characterized in that: It comprises a track plate (3), a workpiece to be cut (4) and a track angle adjustment tool as described in any one of claims 2 to 8, wherein the side of the base (2) abuts against the edge of the workpiece to be cut (4), the track plate (3) is partially overlapped on the workpiece to be cut (4), the track plate (3) is partially limited to the rotating part (1), and the track plate (3) can rotate with the rotating part (1).

10. The track angle adjustment system according to claim 9, characterized in that: It also includes an F clamp (31), the F clamp (31) clamps the piece to be cut (4), and the upper part of the F clamp (31) is engaged and connected with the bottom of the track plate (3); and / or, A limiting component (14) is provided on the side of the rotating member (1) facing away from the base (2), and the limiting component (14) is used to limit the track plate (3).

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