Saw blade holder

Abstract

The utility model provides a saw blade clamping device, and relates to the technical field of saw blade installation, the saw blade clamping device is provided with a clamping head and an adjusting mechanism, the adjusting mechanism is provided with an adjusting seat and an adjusting bolt, the adjusting bolt is movably arranged on the adjusting seat, and the clamping head is in linkage with the adjusting bolt; the chuck is provided with a clamping groove and a lock bolt, the lock bolt is movably arranged in the clamping groove, and the saw blade is arranged in the clamping groove and pressed by the lock bolt. The direction of the clamping groove is parallel to the direction of the adjusting bolt, and the two ends of the clamping groove are open. The two ends of the clamping groove are open, the saw blade is not limited in the radial direction, the phenomenon that the saw blade deviates due to the fact that the top end of the saw blade abuts against the clamping head is avoided, and the upper limit length of the saw blade capable of being clamped by the clamping device is increased.

Description

Technical Field

[0001] This application belongs to the technical field of saw blade installation, and more specifically, relates to a saw blade holder. Background Technology

[0002] A saw blade holder is a tool used to secure saw blades. It is widely used in woodworking, metalworking, and other cutting operations. The main function of a saw blade holder is to ensure that the saw blade remains stable and does not shift during use, thereby improving cutting accuracy and safety.

[0003] A saw blade holder typically consists of the following main parts: a chuck for clamping the saw blade, usually with an adjustable design to accommodate saw blades of different sizes; and a base that provides stable support to ensure the overall structure is stable and prevents movement during cutting.

[0004] Existing saw blade holders have the following main drawbacks: The outer end of the chuck has a limit; when the outer end of the saw blade 1 abuts against this limit, the saw blade may shift, limiting the maximum length the holder can hold. Before locking the saw blade, the chuck should be in a position where it can move easily. If the chuck does not reach its lowest point, the theoretical lowest point does not match the actual position, resulting in insufficient locking stroke and ultimately affecting the locking effect, potentially causing abnormal locking function. After the bolt contacts the saw blade, friction may cause the saw blade to shift during the fixing process, deviating from its original position. Excessive gap between the holder and the base may cause the saw blade to be misaligned after locking. Summary of the Invention

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a saw blade holder. The technical solution adopted in this application is as follows:

[0006] A saw blade holder for holding a saw blade includes a chuck and an adjustment mechanism. The adjustment mechanism includes an adjustment seat and an adjustment bolt, with the adjustment bolt movably mounted on the adjustment seat. The chuck is linked to the adjustment bolt. The chuck has a clamping groove and a locking bolt, with the locking bolt movably mounted in the clamping groove. The saw blade is placed in the clamping groove and pressed by the locking bolt. The direction of the clamping groove is parallel to the direction of the adjustment bolt, and both ends of the clamping groove are open.

[0007] Preferably, the bolt is provided with a clamping pad, which is rotatably located at the front end of the bolt.

[0008] Preferably, the bolt is further provided with a rotating mechanism, which has a rotating pin and a rotating groove. The rotating pin is rotatably located in the rotating groove. The clamping pad is linked with the rotating pin, and the rotating groove is located on the bolt.

[0009] Preferably, the rotating mechanism is further provided with a washer, which is disposed between the rotating pin and the groove wall of the rotating groove and is pressed tightly.

[0010] Preferably, the rotating pin has an annular groove, and the washer is disposed in the annular groove.

[0011] Preferably, the chuck is also provided with a positioning bolt, which is fixedly installed in the clamping groove. The positioning bolt and the locking bolt are arranged opposite to each other, and the saw blade is located between the positioning bolt and the locking bolt.

[0012] Preferably, the chuck is further provided with a clamping block and a sliding sleeve, the clamping block and the sliding sleeve being linked; the sliding sleeve is slidably sleeved on the adjusting bolt, the inner end of the adjusting bolt is provided with a limiting part; the inner side of the clamping block abuts against the adjusting seat, and the clamping groove is provided on the outer side of the clamping block.

[0013] Preferably, the saw blade holder is further provided with a clamping mechanism, which is provided with a compression spring, which is sleeved on the adjusting bolt; the compression spring abuts against the sliding sleeve and presses the sliding sleeve against the limiting part.

[0014] Preferably, the adjusting seat is provided with an upper directional hole and a lower directional hole, and the adjusting bolt passes through the upper directional hole and the lower directional hole in sequence.

[0015] Preferably, the adjusting mechanism is further provided with an adjusting handle, which is hinged to the outer end of the adjusting bolt, and a hinge is provided between the adjusting handle and the adjusting bolt; the adjusting handle is provided with an eccentric curved surface, the inner end of the eccentric curved surface abuts against the adjusting seat, and the distance from the eccentric curved surface to the hinge gradually changes.

[0016] The advantages of this utility model are as follows:

[0017] Both ends of the clamping groove are open, and the saw blade is unrestricted in the radial direction. The saw blade will not deviate due to the top of the blade abutting against the chuck, which increases the upper limit of the saw blade that the clamp can hold.

[0018] After the clamping pad comes into contact with the saw blade, the pressure between the clamping pad and the saw blade gradually increases, which will generate a large frictional force. The rotatable setting of the clamping pad can prevent the saw blade from shifting due to friction, thereby ensuring that the saw blade is in the initial position, avoiding back-and-forth swaying of the saw blade during use, and ensuring the overall stability of the cutting machine.

[0019] The compression spring rests against the sliding sleeve and presses the sliding sleeve against the limiting part. Before the saw blade is installed in the chuck, the clamping block is at the innermost end. The clamping block has enough outward movement stroke to ensure that the saw blade is provided with sufficient tension to ensure the cutting effect. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the saw blade holder and saw blade in Example 1;

[0022] Figure 2 This is a schematic diagram of the saw blade holder in Embodiment 1;

[0023] Figure 3 This is a schematic diagram of the saw blade holder from another angle in Embodiment 1;

[0024] Figure 4 This is a schematic diagram of the adjusting mechanism and the clamping mechanism;

[0025] Figure 5 This is a schematic diagram of the adjusting mechanism and the clamping mechanism in Example 1;

[0026] Figure 6 This is a diagram of the locking bolt.

[0027] Figure 7 This is a schematic diagram of the adjustment seat;

[0028] Figure 8 This is a schematic diagram of the saw blade holder and saw blade in Example 2.

[0029] Explanation of symbols in the diagram:

[0030] 1 is the saw blade;

[0031] 2 is the chuck, 21 is the clamping groove, 22 is the locking bolt, 221 is the pressure pad, 222 is the rotating mechanism, 2221 is the rotating pin, 2222 is the rotating groove, 2223 is the washer, 2224 is the annular groove, 223 is the knob, 23 is the positioning bolt, 24 is the clamping block, and 25 is the sliding sleeve.

[0032] 3 is the adjustment mechanism, 31 is the adjustment seat, 311 is the upper directional hole, 312 is the lower directional hole, 32 is the adjustment bolt, 321 is the limiting part, 33 is the adjustment handle, 34 is the hinge, and 341 is the eccentric curved surface.

[0033] 4 is the clamping mechanism, and 41 is the compression spring. Detailed Implementation

[0034] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0035] The saw blade holder provided in this application will now be described with reference to the embodiments.

[0036] Example 1, as Figures 1 to 7 As shown:

[0037] A saw blade holder for holding a saw blade 1 includes a chuck 2 and an adjustment mechanism 3. The adjustment mechanism 3 includes an adjustment seat 31 and an adjustment bolt 32. The adjustment bolt 32 is movably mounted on the adjustment seat 31, and the chuck 2 is linked with the adjustment bolt 32. The chuck 2 includes a clamping groove 21 and a locking bolt 22. The locking bolt 22 is movably mounted in the clamping groove 21, and the saw blade 1 is mounted in the clamping groove 21 and pressed by the locking bolt 22. The direction of the clamping groove 21 is parallel to the direction of the adjustment bolt 32, and both ends of the clamping groove 21 are open.

[0038] Both ends of the clamping groove 21 are open, and the saw blade 1 is unrestricted in the radial direction. The saw blade 1 will not deviate due to its top end abutting against the chuck 2, which increases the upper limit of the length that the clamp can hold for the saw blade 1.

[0039] In this embodiment, the bolt 22 penetrates the side wall of the clamping groove 21, and the bolt 22 has interlocking threads between the side walls of the clamping groove 21; the outer end of the bolt 22 is also provided with a knob 223, which can drive the bolt 22 to rotate, and drive the bolt 22 to move inward and outward through a helical transmission.

[0040] The bolt 22 is provided with a pressure pad 221, which is rotatably located at the front end of the bolt 22.

[0041] After the pressure pad 221 comes into contact with the saw blade 1, the pressure between the pressure pad 221 and the saw blade 1 gradually increases, which will generate a large frictional force. The rotatable setting of the pressure pad 221 can prevent the saw blade 1 from being displaced due to friction, thereby ensuring that the saw blade 1 is in the initial position, avoiding the back-and-forth swaying of the saw blade 1 during use, and ensuring the overall stability of the cutting machine.

[0042] The bolt 22 is also provided with a rotating mechanism 222, which has a rotating pin 2221 and a rotating groove 2222. The rotating pin 2221 is rotatably disposed in the rotating groove 2222. The pressure pad 221 is linked with the rotating pin 2221, and the rotating groove 2222 is provided on the bolt 22. In this embodiment, the rotating pin 2221 is fixedly disposed at the rear end of the pressure pad 221 and integrally formed with the pressure pad 221.

[0043] The rotating mechanism 222 is also provided with a washer 2223, which is located between the rotating pin 2221 and the groove wall of the rotating groove 2222 and is pressed tightly. The washer 2223 ensures that the rotating pin 2221 will only rotate within the rotating groove 2222 when subjected to a sufficiently large torsional force. In this embodiment, the washer 2223 is made of rubber.

[0044] The rotating pin 2221 is provided with an annular groove 2224, and the washer 2223 is provided in the annular groove 2224.

[0045] The chuck 2 is also provided with a positioning bolt 23, which is fixedly installed in the clamping groove 21. The positioning bolt 23 is arranged opposite to the locking bolt 22, and the saw blade 1 is disposed between the positioning bolt 23 and the locking bolt 22. The positioning bolt 23 ensures that the saw blade 1 is in a suitable position in the clamping groove 21. In this embodiment, the saw blade 1 is clamped in the middle of the clamping groove 21.

[0046] The chuck 2 is also provided with a clamping block 24 and a sliding sleeve 25, and the clamping block 24 and the sliding sleeve 25 are linked together. The sliding sleeve 25 is slidably sleeved on the adjusting bolt 32. The inner end of the adjusting bolt 32 is provided with a limiting part 321. The cross-sectional dimension of the limiting part 321 is larger than the cross-sectional dimension of other parts of the adjusting bolt 32 to ensure that the sliding sleeve 25 will not slip off from the inner end of the adjusting bolt 32. The inner side of the clamping block 24 is against the adjusting seat 31, and the clamping groove 21 is provided on the outer side of the clamping block 24.

[0047] The saw blade holder is also provided with a clamping mechanism 4, which is provided with a compression spring 41. The compression spring 41 is sleeved on the adjusting bolt 32. The compression spring 41 abuts against the sliding sleeve 25 and presses the sliding sleeve 25 against the limiting part 321.

[0048] The compression spring 41 rests against the sliding sleeve 25 and presses the sliding sleeve 25 against the limiting part 321, ensuring that before the saw blade 1 is installed in the chuck 2, the clamping block 24 is at the innermost end, and the clamping block 24 has enough outward movement stroke, thereby ensuring that the saw blade 1 is provided with sufficient tension to ensure the cutting effect.

[0049] The adjusting seat 31 is provided with an upper directional hole 311 and a lower directional hole 312, and the adjusting bolt 32 passes through the upper directional hole 311 and the lower directional hole 312 in sequence.

[0050] The adjusting bolt 32 passes through the upper directional hole 311 and the lower directional hole 312 in sequence. The upper directional hole 311 and the lower directional hole 312 together limit the movement direction of the adjusting bolt 32, thereby controlling the direction of tensioning the saw blade 1 and ensuring the accurate position of the saw blade 1.

[0051] The adjustment mechanism 3 is also provided with an adjustment handle 33, which is hinged to the outer end of the adjustment bolt 32. A hinge 34 is provided between the adjustment handle 33 and the adjustment bolt 32. The adjustment handle 34 is provided with an eccentric curved surface 341, the inner end of which is attached to the adjustment seat 31. The distance from the eccentric curved surface 341 to the hinge 34 gradually changes.

[0052] Example 2

[0053] Figure 8 A second embodiment of the saw blade holder is shown. For example... Figure 8 As shown, the saw blade holder in the second embodiment is basically the same as that in embodiment 1. The similarities will not be repeated here. The difference is that the chuck 2 does not have a positioning bolt. The locking bolt 22 directly presses the saw blade 1 against the side wall of the clamping groove 21. At this time, the saw blade 1 can fully contact the side wall of the clamping groove 21, and the saw blade 1 can be clamped more stably.

[0054] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A saw blade holder for holding a saw blade, provided with a chuck and an adjustment mechanism, characterized in that: The adjusting mechanism is provided with an adjusting seat and an adjusting bolt, the adjusting bolt is movably arranged on the adjusting seat, and the chuck is linked with the adjusting bolt; the chuck is provided with a clamping groove and a lock bolt, the lock bolt is movably arranged in the clamping groove, the saw blade is arranged in the clamping groove and is pressed by the lock bolt; the direction of the clamping groove is parallel to the direction of the adjusting bolt, and both ends of the clamping groove are open.

2. The saw blade holder according to claim 1, characterized in that: The lock bolt is provided with a pressing pad, and the pressing pad is rotatably arranged at the front end of the lock bolt.

3. The saw blade holder of claim 2, wherein: The lock bolt is also provided with a rotating mechanism, the rotating mechanism is provided with a rotating pin and a rotating groove, and the rotating pin is rotatably arranged in the rotating groove; the pressing pad is linked with the rotating pin, and the rotating groove is arranged on the lock bolt.

4. The saw blade holder of claim 3, wherein: The rotating mechanism is also provided with a gasket, the gasket is arranged between the rotating pin and the groove wall of the rotating groove and is pressed.

5. The saw blade holder of claim 4, wherein: An annular groove is arranged on the rotating pin, and the gasket is arranged in the annular groove.

6. The saw blade holder of claim 5, wherein: The chuck is also provided with a positioning bolt, the positioning bolt is fixedly arranged in the clamping groove, the positioning bolt is arranged opposite to the lock bolt, and the saw blade is arranged between the positioning bolt and the lock bolt.

7. A saw blade holder according to any one of claims 1 to 6, characterized in that: The chuck is also provided with a clamping block and a sliding sleeve, the clamping block is linked with the sliding sleeve; the sliding sleeve is slidably sleeved on the adjusting bolt, and the inner end of the adjusting bolt is provided with a limiting portion; the inner side surface of the clamping block abuts against the adjusting seat, and the clamping groove is arranged on the outer side of the clamping block.

8. The saw blade holder of claim 7, wherein: A pressing mechanism is also arranged, the pressing mechanism is provided with a compression spring, the compression spring is sleeved on the adjusting bolt; the compression spring abuts against the sliding sleeve and presses the sliding sleeve against the limiting portion.

9. A saw blade holder according to any one of claims 1 to 6, characterized in that: The adjusting seat is provided with an upper directional hole and a lower directional hole, and the adjusting bolt penetrates the upper directional hole and the lower directional hole in sequence.

10. The saw blade holder of claim 9, wherein: The adjusting mechanism is also provided with an adjusting handle, the adjusting handle is hinged to the outer end of the adjusting bolt, and a hinge is arranged between the adjusting handle and the adjusting bolt; the adjusting handle is provided with an eccentric curved surface, the inner end of the eccentric curved surface abuts against the adjusting seat, and the distance from the eccentric curved surface to the hinge gradually changes.

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