A cutting positioning device for a draw bar miter saw and method of use

Abstract

The application discloses a cutting positioning device of a pull rod miter saw and a use method thereof, and relates to the technical field of wood processing. The cutting positioning device comprises a miter saw body provided with a saw blade; an alignment block provided with at least one first connecting groove on one side and provided with a second connecting groove corresponding in number to the first connecting grooves on the top; a positioning insert piece which is detachably inserted into the first connecting groove at one end and is used for embedding into a saw groove of processed wood at the other end; and a saw blade back plate which is detachably inserted into the second connecting groove and is provided with an abutting surface. When the positioning insert piece is embedded into the wood saw groove, the wood is moved until the abutting surface of the saw blade back plate is attached to the saw blade of the miter saw, and at this time, the central plane of the saw blade of the miter saw is coincident with the central plane of the wood cutting groove.

Description

Technical Field

[0001] This application relates to the field of miter saw technology, and in particular to a cutting positioning device for a tie rod miter saw and its method of use. Background Technology

[0002] A drawbar miter saw is a commonly used cutting device in woodworking. It cuts wide pieces of wood by sliding a saw blade along a rocker arm. In actual use, when the thickness of the wood exceeds the maximum cutting stroke of the drawbar miter saw, the saw blade cannot completely cut the wood in one go. In this case, the wood needs to be flipped over and the cutting continued in the original position. However, even with LED or laser lights to assist in marking, human judgment still has significant errors, resulting in uneven cut surfaces and cut marks. Therefore, the purpose of this application is to solve the above problems.

[0003] The above content is only used to help understand the technical solution of this application and does not represent an admission that the above content is the closest prior art to this application. Summary of the Invention

[0004] Based on this, this application provides a cutting positioning device for a tie rod beveling saw and its usage method to solve one of the above-mentioned technical problems.

[0005] The technical solution adopted by this application to solve its technical problem is a cutting positioning device for a tie rod beveling saw, comprising: a beveling saw body having a saw blade; an alignment stop having at least one first connecting groove on one side and a second connecting groove corresponding to the number of the first connecting grooves on its top; a positioning insert having one end detachably inserted into the first connecting groove and the other end for embedding into the saw groove of the processed wood; and a saw blade backing plate detachably inserted into the second connecting groove, having a backing surface thereon; wherein, when the positioning insert is embedded in the saw groove of the wood, the wood is moved until the backing surface of the saw blade backing plate is in contact with the beveling saw blade, at which time the center plane of the beveling saw blade coincides with the center plane of the wood groove.

[0006] In some embodiments, the thickness of the positioning insert is the same as the thickness of the miter saw blade.

[0007] In some embodiments, the alignment block has multiple first connecting grooves at different angles, and the positioning insert is inserted into the positioning groove at the corresponding angle according to the oblique vertical cutting angle of the wood saw groove, so as to achieve multi-angle oblique vertical cutting positioning.

[0008] In some embodiments, the positioning insert includes a first connecting end and a second connecting end respectively connected to the first connecting groove and the saw groove, wherein the first connecting end and the second connecting end are arranged in parallel or in a torsional arrangement.

[0009] In some embodiments, the torsion angle of the two connecting ends that are torsionally arranged is the same as the inclination angle of the saw blade abutment surface.

[0010] In some embodiments, a limiting groove is provided on the first connecting end, and a limiting rib that cooperates with the limiting groove is provided in the first connecting groove.

[0011] In some embodiments, both the first connecting groove and the second connecting groove are non-circular connecting grooves.

[0012] A method for using a cutting positioning device for a tie rod miter saw, comprising the following steps: S1. Insert the positioning insert and the saw blade backing plate into the first and second connecting slots at the corresponding angles; S2. Embed the other end of the positioning insert into the pre-processed saw groove in the wood; S3. Push the wood towards the direction of the bevel saw blade, and the alignment block and the saw blade backing plate move synchronously with the wood; S4. Until the abutting surface of the saw blade backing plate makes physical contact with the side of the stationary saw blade, the forward movement of the wood is restricted. At this time, the center plane of the beveling saw blade and the center plane of the wood saw groove automatically coincide.

[0013] The beneficial effects of this application are as follows: by linking and limiting the positioning insert with the saw blade backing plate, the saw groove of the wood exceeding the cutting range is aligned with the saw blade. This structure can effectively eliminate the end face step marks produced by traditional secondary cutting, and can accurately adapt to straight cutting and compound angle beveling conditions. It is simpler to operate, does not require manual judgment of the cutting position, and can be adapted to beveling saws of different specifications. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional schematic diagram of the present application.

[0016] Figure 2 This is a schematic diagram of the vertical cutting state of the cutting and positioning structure of this application.

[0017] Figure 3 This is a schematic diagram of the oblique straight cut state of the cutting and positioning structure of this application.

[0018] Figure 4 This is a schematic diagram of the vertical oblique cutting state of the cutting and positioning structure of this application.

[0019] Figure 5 This is a schematic diagram of the positioning insert structure of this application.

[0020] Figure 6 This is a cross-sectional view of the connecting timber in this application.

[0021] The reference numerals in the attached figures are as follows: 1. Miter saw body; 11. Saw blade; 2. Alignment block; 21. First connecting groove; 211. Limiting rib; 22. Second connecting groove; 3. Positioning insert; 31. First connecting end; 311. Limiting groove; 32. Second connecting end; 4. Saw blade backing plate; 41. Abutting surface; 5. Wood; 51. Saw groove. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application. In addition, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those of ordinary skill in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection of this application.

[0023] In the embodiments of this application, please refer to Figure 1-6 As shown, this application provides a cutting positioning device for a tie rod miter saw, mainly comprising: an alignment block 2, one side of which has at least one first connecting groove 21, and the top of which has a second connecting groove 22 corresponding to the number of the first connecting grooves 21; a positioning insert 3, one end of which is detachably inserted into the first connecting groove 21, and the other end of which is used to embed into the saw groove 51 of the processed wood 5; and a saw blade backing plate 4, which is detachably inserted into the second connecting groove 22 and has a backing surface 41; wherein, when the positioning insert 3 is embedded into the saw groove 51 of the wood 5, the wood 5 is moved until the backing surface 41 of the saw blade backing plate 4 is in contact with the miter saw blade 11, at which time the center plane of the miter saw blade 11 coincides with the center plane of the wood 5 cutting groove.

[0024] Specifically, one end of the positioning insert 3 is inserted into the alignment block 2 on the turntable, and the other end is inserted into the groove formed by the first cut of the wood 5 (the groove is vertical or oblique); the wood 5 is made to abut against the alignment block 2 and move laterally, while the alignment block 2 moves along with it, until the alignment saw blade 11 plate installed on the alignment block 2 is in contact with the side of the stationary saw blade 11. After that, the fixing mechanism of the tie rod beveling saw is used to fix it. The new groove cut corresponds to the old groove, which greatly eliminates the unevenness and cut marks on the cut end face caused by the second cut.

[0025] The following will continue to describe some preferred / improved embodiments based on the above embodiments. Any one of the following embodiments can be selected, or multiple embodiments can be combined.

[0026] Specifically, the thickness of the positioning insert 3 is the same as the thickness of the saw blade 11 of the miter saw 1. When the positioning insert 3 is embedded in the saw groove 51 of the wood 5, the positioning insert 3 can fit tightly against the inner wall of the saw groove 51.

[0027] Reference Figure 2-4 As shown, the alignment block 2 has multiple first connecting grooves 21 with different angles (such as 0°, 45°, 90° and other commonly used oblique angles). The positioning insert 3 is inserted into the positioning groove of the corresponding angle according to the oblique vertical cutting angle of the saw groove 51 of the wood 5, so as to realize multi-angle oblique vertical cutting positioning.

[0028] Reference Figure 5 As shown, the positioning insert 3 includes a first connecting end 31 and a second connecting end 32 respectively connected to the first connecting groove 21 and the saw groove 51. The first connecting end 31 and the second connecting end 32 are arranged in parallel or in a twisted arrangement.

[0029] Reference Figure 2-4 As shown, the parallel positioning inserts 3 are used for oblique vertical cutting angles at different angles; the two connecting ends with relative torsional settings have the same torsional angle (the torsional angle switches according to the angle of the first oblique cut) as the inclination angle of the saw blade backing plate 4 against the surface 41, which is suitable for the scenario where the saw blade 11 makes an oblique cut for the first time.

[0030] Preferably, a limiting groove 311 is provided on the first connecting end 31, and a limiting rib 211 that cooperates with the limiting groove 311 is provided in the first connecting groove 21. This setting has a foolproof effect and ensures that the torsion angle corresponds to the vertical orientation and the oblique cutting angle.

[0031] Preferably, both the first connecting groove 21 and the second connecting groove 22 are non-circular connecting grooves (such as square, rectangular, polygonal, etc.) to prevent rotation. The second connecting groove 22 is preferably a non-equilateral polygon or a combination of a circle and a square, so that it can only be inserted in one direction to prevent incorrect insertion angle. This ensures that the insertion angle of the saw blade back plate 4 corresponds to the angle of the positioning insert 3, improving the stability after assembly.

[0032] In this embodiment, the wood to be processed 5 has been initially cut and a saw groove 51 has been formed. The saw groove 51 is not completely cut off because it exceeds the single cutting capacity of the bevel saw body.

[0033] First, the operator selects the corresponding positioning insert 3 based on the spatial shape of the saw groove 51 already formed on the wood 5, as follows: If the saw groove 51 is a vertical cutting groove, then a positioning insert 3 is selected in which the first connecting end 31 and the second connecting end 32 are arranged in parallel.

[0034] If the saw groove 51 is an oblique cut, then select as follows: Figure 5 The first connecting end 31 and the second connecting end 32 shown are connected by a twisted positioning insert. S1. Insert the positioning insert 3 and the saw blade backing plate 4 into the first connecting groove 21 and the second connecting groove 22 at corresponding angles. Specifically, after the positioning insert 3 and the saw blade backing plate 4 are inserted, their circumferential rotation relative to the alignment stop 2 is restricted, and they only maintain axial insertion. At this time, the abutment surface is preset to be parallel to the side of the saw blade 11 to be cut a second time. S2. The other end of the positioning insert is embedded into the saw groove 51 of the wood 5, and is stably embedded in the saw groove 51 of the wood 5 by means of the interlocking action of the second connecting end 32 and the saw groove 51. S3. Push the wood 5 towards the saw blade 11 of the miter saw 1. During this pushing process, since the second connecting end 32 of the positioning insert 3 is firmly embedded in the saw groove 51 and the first connecting end 31 is inserted and fixed with the alignment block 2, the alignment block 2 and the saw blade backing plate 4 installed on its top do not produce any displacement relative to the wood 5. The alignment block 2 and the saw blade backing plate of the miter saw 1 move synchronously with the wood. S4. Until the abutting surface of the saw blade backing plate makes physical contact with the side of the stationary saw blade, the forward movement of the wood is restricted. Since the first connecting end 31 of the positioning insert 3 is constrained to the alignment block 2 by the first connecting groove 21, and the second connecting end 32 is constrained to the wood 5 by the saw groove 51, and the thickness of the insert 3 is equal to the thickness of the saw blade 11, the center plane of the old saw groove 51 on the wood 5 and the center plane of the saw blade 11 automatically return to a completely overlapping state in space.

[0035] After completing the above positioning operation, the operator can use the clamping mechanism of the miter saw 1 to lock the wood 5 in the current turntable position and disassemble the positioning mechanism to prevent damage to the saw blade.

[0036] The various embodiments of this application have now been described in detail. To avoid obscuring the concept of this application, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of this application. The foregoing embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A cutting positioning device for a tie rod beveling saw, characterized in that, include: The alignment block has at least one first connecting groove on one side and a second connecting groove on its top corresponding to the number of first connecting grooves. The positioning insert has one end detachably inserted into the first connecting groove and the other end used to embed into the saw groove of the processed wood; The saw blade backing plate is detachably inserted into the second connecting groove and has a backing surface thereon; When the positioning insert is embedded in the wood saw groove, the wood is moved until the abutting surface of the saw blade backing plate is in contact with the beveling saw blade. At this time, the center plane of the beveling saw blade coincides with the center plane of the wood groove.

2. The cutting positioning device for a tie rod beveling saw according to claim 1, characterized in that, The thickness of the positioning insert is the same as the thickness of the miter saw blade.

3. The cutting positioning device for a tie rod beveling saw according to claim 1, characterized in that, The alignment block has multiple first connecting grooves at different angles. The positioning insert is inserted into the positioning groove at the corresponding angle according to the oblique vertical cutting angle of the wood saw groove, so as to achieve multi-angle oblique vertical cutting positioning.

4. The cutting positioning device for a tie rod beveling saw according to claim 1, characterized in that, The positioning insert includes a first connecting end and a second connecting end that are respectively connected to the first connecting groove and the saw groove. The first connecting end and the second connecting end are arranged in a relatively parallel manner or in a relatively torsional manner.

5. The cutting positioning device for a tie rod beveling saw according to claim 4, characterized in that, The torsion angle of the two connecting ends of the relative torsion setting is the same as the inclination angle of the saw blade's abutment surface.

6. The cutting positioning device for a tie rod beveling saw according to claim 4, characterized in that, A limiting groove is provided on the first connecting end, and a limiting rib that cooperates with the limiting groove is provided in the first connecting groove.

7. The cutting positioning device for a tie rod beveling saw according to claim 1, characterized in that, Both the first connecting groove and the second connecting groove are non-circular connecting grooves.

8. A method of using the cutting positioning device of a tie rod miter saw according to any one of claims 1-6, characterized in that, Includes the following steps: S1. Insert the positioning insert and the saw blade backing plate into the first and second connecting slots at the corresponding angles; S2. Embed the other end of the positioning insert into the pre-processed saw groove in the wood; S3. Push the wood towards the direction of the bevel saw blade, and the alignment block and the saw blade backing plate move synchronously with the wood; S4. Until the abutting surface of the saw blade backing plate makes physical contact with the side of the stationary saw blade, the forward movement of the wood is restricted. At this time, the center plane of the beveling saw blade and the center plane of the wood saw groove automatically coincide.

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