A tooth grinding device for electric saw chain

Abstract

The present invention discloses a tooth grinding device for a chainsaw chain of an electric saw, and relates to the technical field of grinding devices, comprising a bracket, wherein the bracket is provided with two legs, and a screw rod threadedly matched with the legs is inserted in the middle of the legs; a fixed block is fixedly connected to the top of the bracket, a connecting block is fixedly connected to the side wall of the fixed block, a supporting block is rotatably connected to the connecting block, a sleeve is fixedly connected to the supporting block, a connecting rod movable along the axis of the sleeve is inserted in the sleeve, one end of the connecting rod is fixedly connected to a support rod, the other end of the connecting rod is fixedly connected to a pull rod, a locking rod is fixedly connected to the middle of the pull rod, and a round file is connected between the support rod and the locking rod. The present invention can grind the teeth on a saw chain; it can keep the grinding angle position stable, and improve the grinding quality.

Description

Technical field:

[0002] The invention relates to the technical field of grinding devices, and in particular to a blade tooth grinding device for a saw chain of an electric saw. Background technology:

[0004] Electric saws are cutting tools that use electricity as a power source and are used to cut wood, stone, steel, etc. They have sharp teeth on the edge. Electric chain saws are one of them. Electric chain saws refer to woodworking power tools that use a rotating chain saw blade for sawing. Its cutting structure is a saw chain installed on a chain plate. The saw chain is a chain with teeth for cutting wood, which is installed on the chain plate. The chain plate is used to support and conduct the saw chain through a solid track structure. When using it, the wear of the alloy blade on it must be checked and timely repaired according to the wear.

[0005] There are currently two ways to file the teeth on a saw chain. One is to use an electric sharpening machine with a grinding wheel to grind the teeth on the saw chain. In this method, due to the rapid rotation of the grinding wheel, the grinding amount is difficult to control, making it difficult to control the grinding angle and depth, and a large amount of heat is generated during the grinding process, causing the teeth to be in a high temperature state. After grinding, the hardness of the teeth is reduced, thereby reducing their service life. The other method is to manually file with a round file. In this method, the filing angle is prone to change and is difficult to control, resulting in inconsistent cutting edge angles and depths of the grinded teeth, inaccurate grinding angles and depths, and inconsistent grinding angles. When the electric saw is sawing a tree, it is easy to deflect to one side, which brings great inconvenience to the use control, and the grinding operation is inconvenient and the grinding efficiency is low. Therefore, it is necessary to provide a device with high filing efficiency and no impact on filing quality. Summary of the invention:

[0007] The invention aims to solve the technical problems of inconvenient manual filing of electric saw chains and inaccurate grinding angles, and provides a tooth grinding device for electric saw chains.

[0008] In order to achieve the above object, the present invention adopts the following technical solutions:

[0009] A tooth grinding device for an electric saw chain, comprising a bracket, the bracket being an inverted U-shaped structure, the bracket being provided with two legs, the middle parts of the legs being provided with a threaded hole, a screw rod which is threadably matched with the threaded hole being inserted through the threaded hole, a first through hole being provided at one end of the outer side of the screw rod, a rotating rod being inserted through the first through hole; a fixed block is fixedly connected to the top of the bracket, a connecting block is fixedly connected to the side wall of the fixed block, a supporting block is rotatably connected to the connecting block, a sleeve is fixedly connected to the supporting block, a connecting rod which can move along the axis of the sleeve is inserted through the sleeve, one end of the connecting rod is fixedly connected to a strut, the other end of the connecting rod is fixedly connected to a pull rod, a locking rod is fixedly connected to the middle part of the pull rod, a round file is connected between the strut and the locking rod.

[0010] Furthermore, a first blind hole is provided at the end of the locking rod, and a first locking bolt is threadedly connected to one side of the first blind hole, and one end of the round file is inserted into the first blind hole and locked in the first blind hole by the first locking bolt; a second through hole is provided on the side wall of the lower end of the support rod, and a second locking bolt is threadedly connected to the side wall of the second through hole, and the other end of the round file passes through the second through hole and is fastened in the second through hole by the second locking bolt.

[0011] Furthermore, the legs are parallel to each other.

[0012] Furthermore, the lower end of the supporting leg is fixedly connected with a placement frame.

[0013] Furthermore, the screws are arranged facing each other, and a clamping block is connected to one end of the screw located on the inner wall of the bracket, and the end surface area of ​​the clamping block close to the axis of the bracket is larger than the end surface area of ​​the screw.

[0014] Furthermore, the fixing block and the connecting block are fixedly connected via an extension rod.

[0015] Furthermore, fixing rods are fixedly connected on both sides of the fixing block, and the ends of the fixing rods are fixedly connected with a first positioning rod, a second positioning rod, and a third positioning rod that are perpendicular to each other. The third positioning rod is in a horizontal state and forms a certain angle with the central axis of the bracket, the second positioning rod is in a vertical state and is used to position the rotation angle of the sleeve, and the first positioning rod is located under the sleeve to support the sleeve.

[0016] Furthermore, a positioning ring is sleeved on the outside of the sleeve, and the positioning ring is sleeved outside the sleeve and the third positioning rod and binds the sleeve to the third positioning rod.

[0017] The invention provides a blade tooth grinding device for a chainsaw chain of an electric saw, which has the following beneficial effects: by adopting the above technical scheme, when in use, the bracket is mounted on the chain plate of the electric saw, so that the saw chain on the chain plate passes between the legs on both sides, the screw is adjusted to clamp the chain plate, and the sleeve is rotated so that the circular file connected between the support rod and the locking rod and the blade teeth on the saw chain are at a desired angle, and the circular file is pulled to grind the blade teeth; the chain plate is clamped by the screw, so that the grinding depth can be kept consistent; the connecting rod is restricted in the sleeve to move along the axis of the sleeve, so that the grinding angle position of the circular file can be kept stable, so that the grinding angle is kept consistent, the grinding quality is improved, and the deviation when sawing trees is avoided; the circular file is supported by the device connection, and there is no need to hold the position by hand, so that the grinding operation is convenient; when grinding, the pull rod is manually pulled to pull the circular file for grinding, and the grinding speed is controllable, so that the grinding speed is not too high, resulting in excessive grinding temperature and burning of the blade teeth, thereby reducing the strength of the blade teeth. Description of the drawings:

[0019] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings:

[0020] Figure 1 A schematic front view of the structure of a tooth grinding device for an electric saw chain provided by the present invention;

[0021] Figure 2 A schematic diagram of a side cross-sectional structure of a tooth grinding device for an electric saw chain provided by the present invention;

[0022] Figure 3 for Figure 1 Schematic diagram of the local structure of part A in the middle;

[0023] Figure 4 for Figure 1 Schematic diagram of the local structure of the middle B part;

[0024] Figure 5 A schematic structural diagram of a blade grinding device for a chainsaw chain of an electric saw provided by the present invention, which includes a fixed rod and a first positioning rod, a second positioning rod, and a third positioning rod;

[0025] Figure 6 A schematic diagram of the top view of the structure of a blade grinding device for a saw chain of an electric saw provided by the present invention, in which a middle sleeve is bound to a third positioning rod on one side;

[0026] Figure 7 A schematic diagram of the top view of the structure of a blade grinding device for a saw chain of an electric saw provided by the present invention, in which a middle sleeve is bound to a third positioning rod on the other side;

[0027] Figure 8 A schematic diagram of a use state of a blade grinding device for a chainsaw chain of an electric saw provided by the present invention;

[0028] Fig. 9 This is a schematic diagram of the contact part between the circular file and the workpiece when the blade tooth grinding device of the electric saw chain provided by the present invention is in use.

[0029] Explanation of numbers in the figure: 1- bracket, 11- leg, 12- fixed block, 13- fixed rod, 131- first positioning rod, 132- second positioning rod, 133- third positioning rod, 2- screw rod, 21- clamping block, 3- rotating rod, 4- connecting block, 41- rotating shaft, 42- extension rod, 5- supporting block, 6- sleeve, 61- positioning ring, 7- connecting rod, 71- support rod, 711- second through hole, 712- second locking bolt, 72- pull rod, 73- locking rod, 731- first blind hole, 732- first locking bolt, 733- rotating rod, 8- round file, 9- placement rack. Specific implementation method:

[0031] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] It should be noted that all directional indications in the embodiments of the present invention (such as up-down-left-right-front-back...) are only used to explain the relative position relationship - movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly. The connection can be a direct connection or an indirect connection.

[0034] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, a tooth grinding device for a chainsaw chain of an electric saw comprises a bracket 1, the bracket 1 is an inverted U-shaped structure, the bracket 1 is provided with two legs 11, the middle of the legs 11 is provided with a threaded hole, the threaded hole is interspersed with a screw 2 threadedly matched with the screw; the top of the bracket 1 is fixedly connected with a fixing block 12, the side wall of the fixing block 12 is fixedly connected with a connecting block 4, the connecting block 4 is rotatably connected with a supporting block 5, the supporting block 5 is fixedly connected with a sleeve 6, the sleeve 6 is interspersed with a connecting rod 7 that can move along the axis of the sleeve, one end of the connecting rod 7 is fixedly connected with a support rod 71, the other end of the connecting rod 7 is fixedly connected with a pull rod 72, the middle of the pull rod 72 is fixedly connected with a locking rod 73, and a round file 8 is connected between the support rod 71 and the locking rod 73. The round file 8 is a cylindrical file with fine teeth. Specifically, a first through hole is provided at one outer end of the screw rod 2 , and a rotating rod 3 is inserted into the first through hole; a rotating shaft 41 is provided on the connecting block 4 , and a supporting block 5 is rotatably connected to the rotating shaft 41 .

[0035] Using the above technical solution, such as Figure 8 and Fig. 9 As shown, when in use, the bracket 1 is placed on the chain plate of the electric saw so that the saw chain on the chain plate passes between the legs 11 on both sides. The screw rod 2 is adjusted to clamp the chain plate, and the sleeve 6 is rotated so that the round file 8 fixed between the support rod 71 and the locking rod 73 is at a desired angle to the cutter teeth on the saw chain. The round file 8 is pulled to grind the cutter teeth. The connecting rod 7 is restricted in the sleeve 6 to move along the axis of the sleeve 6, so that the angular position of the round file 8 can be kept stable, thereby improving the grinding effect. The round file 8 is supported by the device connection, and there is no need to hold the position by hand, so that the grinding operation is convenient. When grinding, the pull rod 72 is manually pulled to pull the round file 8 for grinding, and the grinding speed is controllable to avoid excessive grinding speed, which may cause excessive grinding temperature to burn the cutter teeth and reduce the strength of the cutter teeth.

[0036] Specifically, the end of the locking rod 73 is provided with a first blind hole 731, and a first locking bolt 732 is connected to one side of the first blind hole 731 by threading. One end of the round file 8 is inserted into the first blind hole 731 and locked in the first blind hole 731 by the first locking bolt 732. The side wall of the lower end of the support rod 71 is provided with a second through hole 711, and a second locking bolt 712 is connected to the side wall of the second through hole 711 by threading. The other end of the round file 8 passes through the second through hole 711 and is fastened in the second through hole 711 by the second locking bolt 712. The lower ends of the first locking bolt 732 and the second locking bolt 712 are fixedly connected with a rotating rod 733 arranged vertically therewith, and the first locking bolt 732 or the second locking bolt 712 is conveniently rotated by the rotating rod 733. The round file 8 is fastened by the first locking bolt 732 or the second locking bolt 712, so that the round file 8 can be easily disassembled and installed.

[0037] Specifically, the legs 11 are parallel to each other, and the screws 2 on the legs 11 on both sides are symmetrically arranged, so as to maintain the stability of the structure.

[0038] Specifically, the lower end of the supporting leg 11 is fixedly connected with a placing frame 9, and the placing frame 9 is an inverted U-shaped structure. The placing frame 9 is convenient for placing the device of the present invention, so that it can stand independently and remain stable.

[0039] Specifically, the screw rods 2 are arranged facing each other, and a clamping block 21 is connected to one end of the screw rod 2 located on the inner wall of the bracket 1, and the end surface area of ​​the clamping block 21 close to the axis of the bracket 1 is larger than the end surface area of ​​the screw rod 2. By providing a clamping block 21 with a larger end surface area, the clamping area of ​​the chain plate can be increased, making the clamping more secure, avoiding position deviation when grinding the blade teeth and thus affecting the grinding effect.

[0040] Specifically, the fixing block 12 is fixedly connected to the connecting block 4 by an extension rod 42. The sleeve 6 at the upper end of the connecting block 4 can be kept away from the bracket, so that the round file 8 is kept away from the bracket 1, avoiding interference between the round file 8 and the bracket 1, and facilitating the grinding operation.

[0041] As a preferred embodiment of the present invention, Figure 5 , Figure 6 and Figure 7 As shown, the fixing block 12 is fixedly connected with fixing rods 13 on both sides, and the ends of the fixing rods 13 are fixedly connected with mutually perpendicular first positioning rods 131, second positioning rods 132, and third positioning rods 133, the third positioning rods 133 are in a horizontal state and form a certain angle with the central axis of the bracket 1, the second positioning rods 132 are in a vertical state and are used to position the rotation angle of the sleeve 6, and the first positioning rods 131 are located below the sleeve 6 to support the sleeve 6. The second positioning rods 132 are used to position the rotation angle of the sleeve 6, and the first positioning rods 131 support the sleeve 6, which can keep the position of the sleeve 6 stable and improve the grinding accuracy.

[0042] Specifically, the sleeve 6 is covered with a positioning ring 61, which is covered outside the sleeve 6 and the third positioning rod 133 and binds the sleeve 6 to the third positioning rod 133. By binding the sleeve 6 to the third positioning rod 133 through the positioning ring 61, the position of the sleeve 6 can be further kept relatively stable, avoiding the sleeve 6 from being pulled and deflected during the grinding process.

[0043] The above shows and describes the basic principles, main features and characteristics of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of the present invention is defined by the attached claims and their equivalents.

Claims

1. A tooth grinding device for a chainsaw chain, characterized in that: The invention comprises a bracket (1), wherein the bracket (1) is an inverted U-shaped structure, the bracket (1) is provided with two legs (11), the middle part of the legs (11) is provided with a threaded hole, and a screw (2) threadedly matched with the screw is inserted in the threaded hole; the top of the bracket (1) is fixedly connected with a fixing block (12), the side wall of the fixing block (12) is fixedly connected with a connecting block (4), the connecting block (4) is rotatably connected with a supporting block (5), the supporting block (5) is fixedly connected with a sleeve (6), the sleeve (6) is inserted with a connecting rod (7) that can move along the axis of the sleeve, one end of the connecting rod (7) is fixedly connected with a support rod (71), the other end of the connecting rod (7) is fixedly connected with a pull rod (72), the middle part of the pull rod (72) is fixedly connected with a locking rod (73), and a round file (8) is connected between the support rod (71) and the locking rod (73); A first blind hole (731) is provided at the end of the locking rod (73), and a first locking bolt (732) is connected to one side of the first blind hole (731) by means of a thread, and one end of the round file (8) is inserted into the first blind hole (731) and is locked in the first blind hole (731) by means of the first locking bolt (732); a second through hole (711) is provided on the side wall of the lower end of the support rod (71), and a second locking bolt (712) is connected to the side wall of the second through hole (711) by means of a thread, and the other end of the round file (8) passes through the second through hole (711) and is fastened in the second through hole (711) by means of the second locking bolt (712); The fixing block (12) is fixedly connected to fixing rods (13) on both sides, and the ends of the fixing rods (13) are fixedly connected to a first positioning rod (131), a second positioning rod (132), and a third positioning rod (133) which are perpendicular to each other, the third positioning rod (133) is in a horizontal state and forms a certain angle with the central axis of the bracket (1), the second positioning rod (132) is in a vertical state and is used to position the rotation angle of the sleeve (6), and the first positioning rod (131) is located below the sleeve (6) and is used to support the sleeve (6).

2. The tooth grinding device for a chainsaw chain of an electric saw according to claim 1, characterized in that: The legs (11) are parallel to each other, and the screw rods (2) on the legs (11) on both sides are symmetrically arranged.

3. The tooth grinding device for a chainsaw chain of an electric saw according to claim 1, characterized in that: The lower end of the supporting leg (11) is fixedly connected to a placement frame (9), and the placement frame (9) is an inverted U-shaped structure.

4. The tooth grinding device for a chainsaw chain of an electric saw according to claim 1, characterized in that: The screw rods (2) are arranged facing each other, and a clamping block (21) is connected to one end of the screw rod (2) located on the inner wall of the bracket (1), and the end surface area of ​​the clamping block (21) close to the axis of the bracket (1) is larger than the end surface area of ​​the screw rod (2).

5. The tooth grinding device for a chainsaw chain of an electric saw according to claim 1, characterized in that: The fixed block (12) and the connecting block (4) are fixedly connected via an extension rod (42).

6. The tooth grinding device for a chainsaw chain of an electric saw according to claim 1, characterized in that: The sleeve (6) is sleeved with a positioning ring (61), and the positioning ring (61) is sleeved outside the sleeve (6) and the third positioning rod (133) and binds the sleeve (6) to the third positioning rod (133).

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