High speed circular saw machine blade clamping device

Abstract

The utility model discloses a high -speed circular sawing machine saw blade clamping device, including sawing machine body, the upper portion of sawing machine body is installed with the main shaft of driving saw blade rotation, the middle part of main shaft is provided with the positioning assembly of saw blade installation positioning, the positioning assembly includes the first clamping piece of the sleeve setting in the middle part of main shaft to saw blade clamping, the lateral wall of first clamping piece is installed with the connecting block, one end of connecting block is equipped with the guide inclined plane, and the middle part of connecting block is evenly provided with a plurality of sets of guide grooves along the axial direction of main shaft, the middle part of saw blade is provided with the through -hole, and the inner wall of through -hole is equipped with a plurality of sets of guide blocks to the guide groove, the lateral wall movable mounting of first clamping piece has a plurality of sets of positioning pin, and the middle part of saw blade is provided with a plurality of sets of positioning hole matched with positioning pin. Through positioning assembly each component cooperation and cooperation, can realize saw blade installation quick positioning fast, significantly reduce the time required for saw blade replacement to guarantee the production efficiency of circular sawing machine.

Description

Technical Field

[0001] This utility model relates to the field of circular saw technology, specifically a high-speed circular saw blade clamping device. Background Technology

[0002] A circular saw is a machine tool that uses a circular saw blade as a cutting tool to cut materials such as metal and wood through the rotation of the saw blade. It mainly consists of a bed, saw blade, feed mechanism, clamping device, etc., and is characterized by high efficiency and smooth cuts. It is widely used in industries such as machinery manufacturing, construction, and furniture processing.

[0003] Currently, circular sawing machines struggle to quickly position the saw blade during blade changes. Operators must spend considerable time aligning the saw blade center with the spindle axis, significantly increasing the time required for each blade change. Especially in batch processing scenarios, frequent blade changes accumulate substantial non-productive time, severely slowing down the production line. Therefore, a high-speed circular sawing machine blade clamping device is needed. Utility Model Content

[0004] The purpose of this utility model is to provide a high-speed circular saw blade clamping device, which enables the saw blade to be quickly positioned during installation by setting a positioning component, thereby increasing the efficiency of saw blade replacement and solving the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A high-speed circular saw blade clamping device includes a saw body, a spindle that drives the saw blade to rotate is installed on the upper part of the saw body, and a positioning component for mounting and positioning the saw blade is provided in the middle of the spindle. The positioning assembly includes a first clamping member and a second clamping member sleeved in the middle of the spindle to hold the saw blade. A connecting block is installed on the side wall of the first clamping member. A guide slope is provided at one end of the connecting block. Several sets of guide grooves are evenly opened in the middle of the connecting block along the axial direction of the spindle. A through hole matching the connecting block is provided in the middle of the saw blade. Several sets of guide blocks are installed on the inner wall of the through hole corresponding to the guide groove. The side wall of the first clamping member is movably equipped with several sets of positioning pins, and the middle part of the saw blade is provided with several sets of positioning holes that match the positioning pins.

[0006] Preferably, the angle between the guide slope and the main shaft axis is °-°, and the surface of the guide slope is smoothed.

[0007] Preferably, the cross-sectional shape of each group of guide grooves is T-shaped, and the cross-sectional shape of each group of guide blocks is set to T-shaped corresponding to the cross-sectional shape of the guide grooves.

[0008] Preferably, the sidewall of the first clamping member is provided with a plurality of circular grooves, and the positioning pins of each group are slidably installed inside the circular grooves.

[0009] Preferably, a spring is installed inside each set of circular grooves, and the two ends of each set of springs are respectively connected to the inner wall of the corresponding circular groove and the side wall of the positioning pin.

[0010] Preferably, the end of each set of positioning pins has a hemispherical structure, and the diameter of the hemisphere at the end of the positioning pin is slightly larger than the diameter of the positioning hole.

[0011] Preferably, the side wall of the second clamping member is provided with a first mounting groove and a second mounting groove respectively corresponding to the connecting block and the positioning pin, and a number of sets of bolts for fixing the saw blade are threaded through the middle of the second clamping member and the first clamping member.

[0012] Preferably, a fixing block is installed on the upper part of the saw body, the main shaft is installed through the middle of the fixing block, and a motor for driving the main shaft to rotate is installed on the side wall of the fixing block.

[0013] Compared with the prior art, the beneficial effects of this utility model are: When the saw blade needs to be replaced, align the through hole in the center of the saw blade with the spindle and push it in axially. During this process, the guide bevel of the connecting block provides guidance and constraint to the saw blade, ensuring that the saw blade slides smoothly to the outside of the connecting block. Simultaneously, the guide block on the inner wall of the saw blade's through hole precisely engages with the guide groove on the connecting block, sliding and embedding axially to achieve circumferential positioning. As the saw blade advances, the positioning pin on the side wall of the first clamping component engages in the positioning hole of the saw blade, completing axial positioning. Through the coordinated operation of all components of the positioning assembly, rapid saw blade installation and positioning can be achieved quickly, significantly reducing the time required for saw blade replacement and thus ensuring the production efficiency of the circular saw. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the saw blade mounting structure of this utility model; Figure 3 This is a schematic diagram showing the disassembled structure of the positioning component of this utility model; Figure 4 This is a side view of the first clamping member of this utility model; Figure 5 This is a side view of the second clamping component of this utility model.

[0015] In the diagram: 1. Sawing machine body; 2. Spindle; 3. Saw blade; 4. Positioning assembly; 401. First clamping component; 402. Second clamping component; 403. Connecting block; 404. Guide slope; 405. Guide groove; 406. Through hole; 407. Guide block; 408. Circular groove; 409. Positioning pin; 410. Spring; 411. Positioning hole; 412. First mounting groove; 413. Second mounting groove; 414. Bolt; 5. Fixing block; 6. Motor. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] This utility model provides: a saw blade clamping device for a high-speed circular saw, such as... Figures 1-5 As shown, the saw includes a saw body 1, with a spindle 2 mounted on the upper part of the saw body 1 to drive the saw blade 3 to rotate. A positioning assembly 4 for mounting and positioning the saw blade 3 is located in the middle of the spindle 2. The saw body 1 serves as the equipment frame, providing stable support for the spindle 2 and the positioning assembly 4, ensuring the coordinated operation of all components. The spindle 2 is connected to a drive motor 6, responsible for driving the saw blade 3 to rotate at high speed to achieve the cutting function. The positioning assembly 4 is used to increase the efficiency of changing the saw blade 3, ensuring the working efficiency of the saw.

[0018] The positioning assembly 4 includes a first clamping member 401 and a second clamping member 402, which are sleeved in the middle of the spindle 2 to clamp the saw blade 3. A connecting block 403 is installed on the side wall of the first clamping member 401. One end of the connecting block 403 is provided with a guide slope 404. Several sets of guide grooves 405 are evenly opened in the middle of the connecting block 403 along the axial direction of the spindle 2. The middle of the saw blade 3 is provided with a through hole 406 that matches the connecting block 403. Several sets of guide blocks 407 are installed on the inner wall of the through hole 406 corresponding to the guide grooves 405. The first clamping member 401 and the second clamping member 402 are sleeved in the middle of the spindle 2, and the two clamp the saw blade 3 by bolts 414 to form axial constraint. The connecting block 403 on the side wall of the first clamping member 401 cooperates with the guide block 407 on the inner wall of the through hole 406 of the saw blade 3 through the guide slope 404 and the guide groove 405 to achieve axial guidance and circumferential positioning.

[0019] The side wall of the first clamping member 401 is movably fitted with several sets of locating pins 409, and the middle of the saw blade 3 has several sets of locating holes 411 that match the locating pins 409. Under the action of the spring 410, the locating pins 409 on the side wall of the first clamping member 401 are inserted into the locating holes 411 of the saw blade 3 to provide axial positioning for the saw blade 3. This multi-component collaborative positioning enables rapid positioning of the saw blade during installation, significantly reducing the time required for saw blade replacement, thereby ensuring the production efficiency of the circular saw.

[0020] Preferably, the angle between the guide bevel 404 and the axis of the main shaft 2 is 30°-60°, and the surface of the guide bevel 404 is smoothed. The 30°-60° angle between the guide bevel 404 and the axis of the main shaft 2 creates a stable axial guiding force, preventing the saw blade 3 from shifting or jamming during installation. The smoothed bevel surface effectively reduces frictional resistance, allowing the saw blade 3 to slide smoothly into the outer side of the connecting block 403. This design significantly reduces the difficulty of installing the saw blade 3, allowing operators to quickly complete the installation without repeated adjustments, significantly shortening downtime for tool changes, and effectively improving production efficiency.

[0021] Preferably, the cross-sectional shape of each set of guide grooves 405 is T-shaped, and the cross-sectional shape of each set of guide blocks 407 is also T-shaped to correspond to the cross-sectional shape of the guide grooves 405. The T-shaped guide grooves 405 and the T-shaped guide blocks 407 on the inner wall of the through holes 406 of the saw blade 3 are precisely matched to form a mortise and tenon joint structure. When the saw blade 3 is pushed in along the axial direction of the spindle 2, the guide blocks 407 slide and embed themselves along the guide grooves 405, and the transverse protrusions of the T-shaped cross-sections lock the grooves of the guide grooves 405, restricting the circumferential rotation of the saw blade 3 and preventing the saw blade 3 from rotating during installation.

[0022] Furthermore, the sidewall of the first clamping member 401 is provided with several sets of circular grooves 408, and each set of positioning pins 409 is slidably installed inside the circular grooves 408. The circular grooves 408 provide radial sliding space for the positioning pins 409, allowing the positioning pins 409 to move freely radially along the spindle 2, ensuring accurate movement during alignment with the positioning hole 411 of the saw blade 3, ensuring reliable engagement between the positioning pins 409 and the positioning hole 411, enhancing the accuracy of axial positioning of the saw blade 3, reducing equipment vibration caused by positioning errors, and improving the stability and safety of equipment operation.

[0023] Furthermore, each set of circular grooves 408 has a spring 410 installed inside, with both ends of each spring 410 connected to the inner wall of the corresponding circular groove 408 and the side wall of the positioning pin 409, respectively. The two ends of the spring 410 inside the circular groove 408 abut against the groove wall and the positioning pin 409, respectively, pushing the positioning pin 409 towards the saw blade 3 through its elastic force. When the saw blade 3 is installed, the positioning pin 409 is pushed by the saw blade 3, compressing the spring 410 and retracting; when the positioning hole 411 is aligned with the positioning pin 409, the elastic force of the spring 410 pushes the positioning pin 409 into the hole, further enhancing the positioning effect of the component on the saw blade 3.

[0024] It is worth noting that the end of each set of locating pins 409 has a hemispherical structure, and the diameter of the hemispherical end of the locating pin 409 is slightly larger than the diameter of the locating hole 411. This hemispherical structure at the end of the locating pin 409, with a diameter slightly larger than the locating hole 411, serves both guiding and interference fit functions: the hemispherical surface automatically guides the locating pin 409 to align with the locating hole 411 during installation, reducing the difficulty of manual alignment; the interference fit eliminates axial clearance, preventing the saw blade 3 from shifting during high-speed rotation, and disassembly only requires overcoming the spring force of the spring 410. This design enables rapid and accurate installation and disassembly of the saw blade 3, while ensuring its stability under high-speed operation and reducing maintenance costs.

[0025] Specifically, the side wall of the second clamping member 402 is provided with a first mounting groove 412 and a second mounting groove 413 corresponding to the connecting block 403 and the positioning pin 409, respectively. Several sets of bolts 414 for fixing the saw blade 3 are threaded through the middle of the second clamping member 402 and the first clamping member 401. The first mounting groove 412 and the second mounting groove 413 on the side wall of the second clamping member 402 respectively accommodate the connecting block 403 and the positioning pin 409, avoiding interference with the first clamping member 401. The bolts 414 are threaded through to connect the first clamping member 401 and the second clamping member 402, so that the saw blade 3 is clamped and fixed. The balanced clamping and fixing design keeps the saw blade 3 stable during high-speed rotation, avoids saw blade deformation caused by uneven clamping force, extends the service life of the saw blade, and reduces the safety hazards caused by the loosening of the saw blade.

[0026] More specifically, a fixing block 5 is installed on the upper part of the saw body 1, and the main shaft 2 is installed through the middle of the fixing block 5. A motor 6 that drives the main shaft 2 to rotate is installed on the side wall of the fixing block 5. The fixing block 5 is installed on the upper part of the saw body 1 and supports the main shaft 2 through internal bearings; the motor 6 is installed on the side wall of the fixing block 5 and provides cutting power to the saw blade 3 by driving the main shaft 2 to rotate at high speed.

[0027] Motor 6 can be a variable frequency speed control motor with a rated power of 15kW and a rated speed of 3000r / min. This motor parameter can meet the power requirements of high-speed circular saws for saw blade 3 to cut metal materials of different hardness. At a speed of 3000r / min, the saw blade linear speed can reach 157m / s, which is suitable for the high-efficiency cutting conditions of most metal materials.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-speed circular saw blade clamping device, characterized in that: The saw body (1) includes a main shaft (2) that drives the saw blade (3) to rotate, and a positioning component (4) for mounting and positioning the saw blade (3) is provided in the middle of the main shaft (2). The positioning component (4) includes a first clamping member (401) and a second clamping member (402) sleeved in the middle of the spindle (2) to clamp the saw blade (3). A connecting block (403) is installed on the side wall of the first clamping member (401). A guide slope (404) is provided at one end of the connecting block (403). Several sets of guide grooves (405) are evenly opened in the middle of the connecting block (403) along the axial direction of the spindle (2). A through hole (406) matching the connecting block (403) is provided in the middle of the saw blade (3). Several sets of guide blocks (407) are installed on the inner wall of the through hole (406) corresponding to the guide groove (405). The side wall of the first clamping member (401) is movably equipped with several sets of positioning pins (409), and the middle part of the saw blade (3) is provided with several sets of positioning holes (411) that match the positioning pins (409).

2. The saw blade clamping device for a high-speed circular saw as described in claim 1, characterized in that: The angle between the guide slope (404) and the axis of the main shaft (2) is 30°-60°, and the surface of the guide slope (404) is smoothed.

3. The saw blade clamping device for a high-speed circular saw as described in claim 2, characterized in that: The cross-sectional shape of each group of guide grooves (405) is T-shaped, and the cross-sectional shape of each group of guide blocks (407) is set to T-shaped corresponding to the cross-sectional shape of guide grooves (405).

4. The saw blade clamping device for a high-speed circular saw as described in claim 1, characterized in that: The first clamping member (401) has several sets of circular grooves (408) on its side wall, and each set of positioning pins (409) is slidably installed inside the circular grooves (408).

5. The saw blade clamping device for a high-speed circular saw as described in claim 4, characterized in that: Each set of circular grooves (408) is equipped with a spring (410), and the two ends of each set of springs (410) are respectively connected to the inner wall of the corresponding circular groove (408) and the side wall of the positioning pin (409).

6. The saw blade clamping device for a high-speed circular saw as described in claim 5, characterized in that: The end of each set of positioning pins (409) is hemispherical, and the diameter of the hemispherical end of the positioning pin (409) is slightly larger than the diameter of the positioning hole (411).

7. The saw blade clamping device for a high-speed circular saw as described in claim 1, characterized in that: The second clamping member (402) has a first mounting groove (412) and a second mounting groove (413) respectively on the side wall corresponding to the connecting block (403) and the positioning pin (409). Several sets of bolts (414) for fixing the saw blade (3) are threaded through the middle of the second clamping member (402) and the first clamping member (401).

8. The saw blade clamping device for a high-speed circular saw as described in claim 1, characterized in that: A fixing block (5) is installed on the upper part of the saw body (1), the main shaft (2) is installed through the middle of the fixing block (5), and a motor (6) for driving the main shaft (2) to rotate is installed on the side wall of the fixing block (5).

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