Saw blade clamping mechanism

Abstract

The utility model discloses a saw blade clamping mechanism, which belongs to the technical field of woodworking band saws, and comprises a conductor upper part and a conductor lower part positioned at the bottom of the conductor upper part, one side of the conductor upper part is provided with an insertion hole I, and a long guide shaft is inserted into the insertion hole I; a first compression spring is fixedly installed between one end of the long guide shaft and the inner wall of the first insertion hole, and one end of the upper portion of the conductor is provided with a first locking handle. The short guide shaft, the second compression spring, the second locking handle and the second positioning assembly can be utilized, and the long guide shaft, the first compression spring, the first locking handle and the first positioning assembly are matched. The short guide shaft and the long guide shaft are pressed to enable the three bearings to be close to the saw blade and clamp the three faces of the saw blade, then the first locking handle and the second locking handle are locked to achieve rapid fixation of the saw blade, the first locking handle and the second locking handle are loosened to enable the three bearings to return to the original positions rapidly and automatically, rapid disassembly of the saw blade is achieved, and the whole structure is simple, stable and convenient to operate. Operation is convenient, and working efficiency is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of woodworking band saw technology, and more specifically, to a saw blade clamping mechanism. Background Technology

[0002] Band saws are a common type of woodworking machinery. The saw blade clamping mechanism is a crucial component, guiding the moving saw blade in three directions (left, right, and rear) during cutting to ensure sawing accuracy. Since this mechanism is frequently operated by the user, a good saw blade clamping mechanism saves time and effort when changing saw blades or adjusting the blade distance, and also ensures good sawing accuracy. Currently, there are many types of saw blade clamping mechanisms for band saws on the market, but they generally suffer from one or two of the following drawbacks: First, they require one or more tools for adjustment and locking, which is inconvenient; second, they lack fine-tuning and quick-positioning functions during adjustment, causing significant inconvenience to users, and improper adjustment can directly affect sawing accuracy. This invention allows users to quickly position the saw blade without tools, improving machine cutting accuracy, saving materials, and bringing great convenience to users. Utility Model Content

[0003] 1. Technical problems to be solved

[0004] To address the problems existing in the prior art, the purpose of this utility model is to provide a saw blade clamping mechanism. It utilizes a short guide shaft, a second compression spring, a second locking handle, and a second positioning component, in conjunction with a long guide shaft, a first compression spring, a first locking handle, and a first positioning component. Pressing the short and long guide shafts causes the three bearings to move closer to the saw blade and clamp the saw blade on three sides. Then, locking the first and second locking handles quickly fixes the saw blade. Releasing the first and second locking handles causes the three bearings to quickly and automatically return to their original positions, enabling quick disassembly of the saw blade. The entire structure is simple, stable, and easy to operate, greatly improving work efficiency.

[0005] 2. Technical Solution

[0006] To solve the above problems, the present invention adopts the following technical solution.

[0007] A saw blade clamping mechanism includes an upper conductor and a lower conductor located at the bottom of the upper conductor. One side of the upper conductor has an insertion hole 1, into which a long guide shaft is inserted. A compression spring 1 is fixedly installed between one end of the long guide shaft and the inner wall of the insertion hole 1. A locking handle 1 is provided at one end of the upper conductor, with one end extending into the insertion hole 1 and threadedly connected to the long guide shaft. Both ends of the lower conductor have insertion holes 2, into which short guide shafts are inserted. A compression spring 2 is fixedly installed between one end of the short guide shaft and the inner wall of the insertion hole 2. Two locking handles 2 are provided on the lower conductor side away from the long guide shaft, with one end extending into the corresponding insertion hole 2 and threadedly connected to the corresponding short guide shaft. Positioning components 1 and 2 are respectively provided on the outer periphery of the locking handle 1 and locking handle 2.

[0008] Furthermore, a straight slot is provided at one end of the upper part of the conductor, the straight slot being connected to the interior of the insertion hole, and one end of the locking handle extending into the insertion hole through the straight slot.

[0009] Furthermore, two symmetrically arranged straight slot holes are provided on the side of the lower part of the conductor away from the long guide shaft. The straight slot holes are connected to the interior of the insertion hole, and one end of the locking handle extends through the straight slot holes into the corresponding insertion hole.

[0010] Furthermore, the positioning component one and the positioning component two have the same structure. The positioning component one includes a bushing fixed to the outer periphery of the locking handle one, and a bearing is fixedly installed on the outer periphery of the bushing.

[0011] Furthermore, a threaded hole is provided on the outer periphery of one end of the long guide shaft located inside the insertion hole, and one end of the locking handle is threadedly connected to the long guide shaft through the threaded hole.

[0012] Furthermore, a threaded hole 2 is provided on the outer periphery of one end of the short guide shaft located inside the insertion hole 2, and one end of the locking handle 2 is threadedly connected to the short guide shaft through the threaded hole 2.

[0013] 3. Beneficial effects

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] This solution, through the setting of a short guide shaft, a second pressure spring, a second locking handle, and a second positioning component, and in conjunction with a long guide shaft, a first pressure spring, a first locking handle, and a first positioning component, allows the three bearings to move closer to the saw blade and clamp the saw blade on three sides when the short and long guide shafts are pressed. Then, locking the first and second locking handles in sequence achieves quick fixation of the saw blade. Releasing the first and second locking handles allows the three bearings to quickly and automatically return to their original positions, enabling quick disassembly of the saw blade. The entire structure is simple, stable, and easy to operate, greatly improving work efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the disassembled structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the positional structure of the upper and lower parts of the conductor in this utility model.

[0019] Explanation of the labels in the diagram:

[0020] 1. Upper part of the conductor;

[0021] 2. Lower part of the conductor;

[0022] 3. Long guide shaft; 301. Threaded hole one;

[0023] 4. Compression spring one;

[0024] 5. Lock handle one;

[0025] 6. Short guide shaft; 601. Threaded hole two;

[0026] 7. Compression Spring Two;

[0027] 8. Locking handle two;

[0028] 9. Positioning Component One;

[0029] 10. Straight slot hole one;

[0030] 11. Straight slot hole two;

[0031] 12. Positioning Component Two. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0033] Example:

[0034] Please see Figures 1-3A saw blade clamping mechanism includes an upper conductor 1 and a lower conductor 2 located at the bottom of the upper conductor 1. An insertion hole 1 is provided on one side of the upper conductor 1, and a long guide shaft 3 is inserted into the insertion hole 1. A compression spring 4 is fixedly installed between one end of the long guide shaft 3 and the inner wall of the insertion hole 1. A locking handle 5 is provided at one end of the upper conductor 1, and one end of the locking handle 5 extends into the insertion hole 1 and is threadedly connected to the long guide shaft 3. Insertion holes 2 are provided at both ends of the lower conductor 2, and short guide shafts 6 are inserted into the insertion holes 2. A compression spring 7 is fixedly installed between one end of the short guide shaft 6 and the inner wall of the insertion hole 2. Two locking handles 2 8 are provided on the side of the lower conductor 2 away from the long guide shaft 3. One end of the locking handle 2 8 extends into the corresponding insertion hole 2 and is threadedly connected to the corresponding short guide shaft 6. Positioning components 1 9 and 2 12 are respectively provided on the outer periphery of the locking handle 1 5 and the locking handle 2 8.

[0035] See Figure 2 and Figure 3 One end of the upper part 1 of the conductor is provided with a straight slot hole 10, which is connected to the inside of the socket 1, and one end of the locking handle 5 extends into the socket 1 through the straight slot hole 10.

[0036] See Figure 2 and Figure 3 Two symmetrically arranged straight slot holes 11 are provided on the side of the lower part 2 of the conductor away from the long guide shaft 3. The straight slot holes 11 are connected to the inside of the socket 2, and one end of the locking handle 8 extends into the corresponding socket 2 through the straight slot holes 11.

[0037] See Figure 2 Positioning component 19 and positioning component 212 have the same structure. Positioning component 19 includes a bushing fixed to the outer periphery of locking handle 15, and a bearing is fixedly installed on the outer periphery of the bushing.

[0038] See Figure 2 The long guide shaft 3 has a threaded hole 301 on the outer periphery of one end located in the insertion hole 1, and one end of the locking handle 5 is threadedly connected to the long guide shaft 3 through the threaded hole 301.

[0039] See Figure 2 The short guide shaft 6 has a threaded hole 601 on the outer periphery of one end located in the insertion hole 2. One end of the locking handle 2 8 is threadedly connected to the short guide shaft 6 through the threaded hole 601.

[0040] In use: the second spring 7 and the short guide shaft 6 are installed sequentially in the second insertion hole of the lower part 2 of the conductor. The bearing is installed on the bushing to form an assembly structure. The second locking handle 8 passes through the assembly structure and the second straight slot hole 11 on the lower part 2 of the conductor and is screwed into the second threaded hole 601 of the short guide shaft 6 to fix it on the lower part 2 of the conductor. There are two sets in total. The first spring 4 and the long guide shaft 3 are installed sequentially in the first rear insertion hole of the upper part 1 of the conductor. The first locking handle 5 passes through the bearing, the bushing and the first straight slot hole 10 on the upper part 1 of the conductor and is screwed into the first threaded hole 301 of the long guide shaft 3 to fix it on the upper part 1 of the conductor.

[0041] When positioning and adjustment are required, pressing the short guide shaft 6 and the long guide shaft 3 will bring the three bearings closer to the saw blade and clamp the saw blade on three sides. Then, locking the locking handle 5 and locking handle 8 in sequence will quickly fix the saw blade. When the saw blade needs to be replaced, releasing the locking handles 5 and 8 will cause the three bearings to quickly and automatically return to their original positions due to the reaction force provided by the internal compression springs 7 and 4, allowing for quick removal of the saw blade. After the saw blade is replaced, the positioning and adjustment steps can be repeated, and the clamping mechanism can be used again. The entire structure is simple, stable, and easy to operate, greatly improving work efficiency.

[0042] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0043] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0044] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A saw blade clamping mechanism comprising a conductor upper part (1) and a conductor lower part (2) located at the bottom of the conductor upper part (1), characterized in that: The one side of the conductor upper part (1) is provided with a jack one, and the long guide shaft (3) is inserted in the jack one, the one end of the long guide shaft (3) and the inner wall of the jack one are fixedly installed with the compression spring one (4), one end of the conductor upper part (1) is provided with the locking handle one (5), one end of the locking handle one (5) extends into the jack one, and is in threaded connection with the long guide shaft (3), both ends of the conductor lower part (2) are provided with the jack two, and the short guide shaft (6) is inserted in the jack two, the one end of the short guide shaft (6) and the inner wall of the jack two are fixedly installed with the compression spring two (7), the side of the conductor lower part (2) away from the long guide shaft (3) is provided with two locking handle two (8), one end of the locking handle two (8) extends into the corresponding jack two, and is in threaded connection with the corresponding short guide shaft (6), the outer periphery of the locking handle one (5) and the locking handle two (8) is provided with the positioning assembly one (9) and the positioning assembly two (12) respectively.

2. A saw blade clamping mechanism according to claim 1, characterized in that: The one end of the conductor upper part (1) is provided with a straight slot hole one (10), the straight slot hole one (10) is communicated with the inside of the jack one, and one end of the locking handle one (5) extends into the jack one through the straight slot hole one (10).

3. A saw blade clamping mechanism according to claim 1, characterized in that: The side of the conductor lower part (2) away from the long guide shaft (3) is provided with two straight slot hole two (11) that are symmetrically arranged, the straight slot hole two (11) is communicated with the inside of the jack two, and one end of the locking handle two (8) extends into the corresponding jack two through the straight slot hole two (11).

4. A saw blade clamping mechanism according to claim 1, characterized in that: The positioning assembly one (9) and the positioning assembly two (12) are the same in structure, the positioning assembly one (9) comprises the shaft sleeve fixed to the outer periphery of the locking handle one (5), and the outer periphery of the shaft sleeve is fixedly installed with the bearing.

5. A saw blade clamping mechanism according to claim 1, characterized in that: The one end of the long guide shaft (3) in the jack one is provided with the threaded hole one (301) in the outer periphery, and one end of the locking handle one (5) is in threaded connection with the long guide shaft (3) through the threaded hole one (301).

6. A saw blade clamping mechanism according to claim 1, characterized in that: The one end of the short guide shaft (6) in the jack two is provided with the threaded hole two (601) in the outer periphery, and one end of the locking handle two (8) is in threaded connection with the short guide shaft (6) through the threaded hole two (601).

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