A saw blade vibration suppression device for a high-speed circular saw

Abstract

The utility model belongs to high -speed disc saw equipment technical field, concretely relates to a saw blade vibration suppression device of high -speed disc saw, including saw blade body and set up firm subassembly on saw blade body, firm subassembly is installed on the suspension arm simultaneously, the suspension arm is rotationally installed with the central shaft, the saw blade body is fixedly installed in the central shaft terminal through the nut. The utility model through swing mechanism, the mechanism of pressing from both sides and the coordinated action of elastic expansion mechanism, when the saw blade body high -speed rotation to its dynamic elasticity clamping force, when the saw blade occurs the flutter, this linkage system can pass through the elastic expansion mechanism real -time dissipation vibration energy, effectively restrain the amplitude, make the saw blade restore stable cutting state quickly, keep its stability, thereby significantly reduce the structural damage risk because of vibration, guarantee high -speed disc saw's machining precision and operation reliability.

Description

Technical Field

[0001] This utility model belongs to the technical field of high-speed circular saw equipment, specifically relating to a saw blade vibration suppression device for a high-speed circular saw. Background Technology

[0002] The core constraint on the processing quality and efficiency of high-speed circular saws lies in the chatter problem that is difficult to suppress during the cutting process. When the feed rate and cutting parameters are mismatched, the interface between the saw blade and the workpiece will generate self-excited vibration, triggering a vicious cycle of "cutting force aggravating saw blade deformation, and deformation in turn amplifying cutting force". This chatter phenomenon not only directly destroys the processing stability due to severe periodic vibration and noise, but also forms irreparable chatter marks on the workpiece surface, reducing the processing capability and process reliability of high-speed circular saws.

[0003] To address this problem, this invention proposes a vibration suppression device for a high-speed circular saw blade. Utility Model Content

[0004] The purpose of this invention is to provide a vibration suppression device for a high-speed circular saw blade, which can solve the above-mentioned technical problems.

[0005] The specific technical solution adopted by this utility model is as follows: This utility model provides a saw blade vibration suppression device for a high-speed circular saw, including a saw blade body and a stabilizing component disposed on the saw blade body. The stabilizing component is also installed on a suspension arm. A central shaft is rotatably mounted on the suspension arm. The saw blade body is fixedly installed on the end of the central shaft by a nut. The stabilizing component includes an installation mechanism, a swing mechanism, a clamping mechanism, and an elastic expansion mechanism. The swing mechanism is configured in two groups, which are symmetrically arranged on the left and right sides of the installation mechanism. Each group of swing mechanisms includes two independently moving swing units. The clamping mechanism is also configured in two groups, each group including two clamping units, which are symmetrically installed at the working end below the two swing mechanisms in each group. The elastic expansion mechanism is configured in two parts, which are respectively arranged between the upper connecting ends of the two swing mechanisms in each group.

[0006] Preferably, the installation mechanism includes a stabilizer, an arched bridge, and a connecting frame. The arched bridge is fitted onto the outer circumference of the saw blade body and remains in a non-contact state. The arched bridge is configured in two sets and is fixedly installed on the left and right sides of the stabilizer. The stabilizer is rigidly connected to the suspension arm by bolts. The connecting frame is configured in two sets, symmetrically arranged on the back side of the stabilizer with the saw blade body as the center. The two sets of connecting frames are respectively fixedly installed on the opposite inner ends of the two sets of arched bridge frames. The connecting frame is provided with symmetrically distributed locking mechanisms.

[0007] Preferably, the swing mechanism includes a swing arm, a rotating shaft, and a mounting plate. The lower part of the swing arm is rotatably connected to the side of the stabilizer or the lower end of the arched bridge frame via the rotating shaft. The mounting plate is configured as two parallel opposing pieces, which are rigidly connected by a connecting block. The lower part of the swing arm is provided with an inwardly bent section that bends toward the saw blade body.

[0008] Preferably, the clamping mechanism includes two sets of screw assemblies and a lubrication input pipe. Each set of screw assemblies includes multiple external threaded rods, which are respectively inserted into multiple mounting holes on the mounting plate. Each external threaded rod is equipped with two clamping nuts. By tightening the clamping nuts, the external threaded rod is positioned and locked on the mounting plate. The end of the external threaded rod facing the saw blade body has a diameter reduction section. The end of the diameter reduction section has a spherical groove, in which freely rotatable balls are embedded. The balls form rolling contact with the side of the saw blade body.

[0009] Preferably, the lubrication input pipe is connected to multiple branch oil injection pipes, which are sealed and connected to the lubrication oil passages opened inside the external threaded rod, and the ends of the lubrication oil passages are interconnected with the spherical groove cavity. The lubrication input pipe is fixed to the fixed tube plate by a pipe clamp. The fixed tube plate is installed on the side of the swing arm and is parallel to the plane of the saw blade body. The lubrication input pipe is connected to an external cutting fluid supply system.

[0010] Preferably, the elastic expansion mechanism includes a spring damper and an extension screw. The extension screw is coaxially connected to the external threaded rod at one end of the spring damper. A collar is fixedly installed at the screw end at the other end of the spring damper. The collar is embedded in a U-shaped groove at the upper end of the swing arm and is detachably connected to the swing arm by bolts.

[0011] Preferably, the extension screw passes through an elongated hole at the upper end of another swing arm in the same group, and a tapered spacer is fitted on the extension screw. The end face of the tapered spacer contacts the side of the swing arm, and an adjusting nut is screwed on the extension screw.

[0012] Preferably, the locking mechanism includes a fixed plate and two clamping plates that are vertically fixed to the side of the fixed plate. The two clamping plates are inserted into the flange of the suspension arm. An insert plate is vertically provided on one side of the bottom surface of the fixed plate, and the insert plate is inserted into the vertical tube provided on the connecting frame.

[0013] The beneficial effects are: 1. This utility model applies a dynamic elastic clamping force to the saw blade body when it rotates at high speed through the coordinated action of the swing mechanism, the clamping mechanism and the elastic expansion mechanism. When the saw blade vibrates, the linkage system can dissipate the vibration energy in real time through the elastic expansion mechanism, effectively suppress the amplitude, and enable the saw blade to quickly return to a stable cutting state and maintain its stability. This significantly reduces the risk of structural damage caused by vibration and ensures the processing accuracy and operational reliability of the high-speed circular saw.

[0014] 2. This utility model, through the cooperation of the installation mechanism and the locking mechanism, not only provides a stable suspension installation foundation for the swing mechanism, but also significantly enhances the overall structural rigidity of the installation mechanism and the arched bridge by utilizing the tight insertion of the locking mechanism and the suspension arm. This design ensures that the entire vibration suppression device has sufficient positioning stability when the elastic expansion mechanism is adjusted and working, thereby maintaining the continuous and uniform clamping effect of the top clamping mechanism on both sides of the saw blade body, and improving the durability and consistency of the vibration suppression effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of the explosion distribution structure of the stable component of this utility model; Figure 3 This is a schematic diagram of the other side of the structure of the stable component explosion distribution of this utility model; Figure 4 This is a schematic diagram of the clamping mechanism of this utility model; Figure 5 This is a schematic diagram of the elastic expansion mechanism of this utility model.

[0016] The attached diagram lists the components represented by each number as follows: 1. Saw blade body; 2. Suspension arm; 3. Central shaft; 4. Mounting mechanism; 41. Stabilizer; 42. Arched bridge; 43. Connecting frame; 5. Swinging mechanism; 51. Swinging arm; 51a. U-shaped groove; 51b. Oblong hole; 51c. Inward fold section; 52. Rotating shaft; 53. Fixed tube plate; 54. Mounting plate; 54a. Mounting hole; 6. Locking mechanism; 61. Fixed plate; 62. Clamping plate; 63. Insert plate; 7. Tightening mechanism; 71. External threaded rod; 72. Clamping nut; 73. Reduction section; 74. Ball bearing; 75. Oil injection pipe; 76. Input pipe; 8. Elastic expansion mechanism; 81. Spring shock absorber; 82. Collar; 83. Extension screw; 84. Spacer; 85. Adjusting nut. Detailed Implementation

[0017] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0018] like Figure 1-5 As shown, a saw blade vibration suppression device for a high-speed circular saw includes a saw blade body 1 and a stabilizing component disposed on the saw blade body 1. The stabilizing component is also installed on a suspension arm 2. A central shaft 3 is rotatably mounted on the suspension arm 2. The saw blade body 1 is fixedly installed on the end of the central shaft 3 by a nut. The stabilizing components include an installation mechanism 4, a swing mechanism 5, a clamping mechanism 7, and an elastic expansion mechanism 8. The swing mechanism 5 is configured in two groups, and the two groups are symmetrically arranged on the left and right sides of the installation mechanism 4. Each group of swing mechanisms 5 contains two independently moving swing units. The clamping mechanism 7 is configured in two groups, each group containing two clamping units, and is symmetrically installed at the working end below each group of two swing mechanisms 5. Two elastic expansion mechanisms 8 are provided, which are respectively arranged between the upper connecting ends of the two swing mechanisms 5 in each group.

[0019] As an optional implementation, the installation mechanism 4 includes a stabilizer 41, an arched bridge 42, and a connecting frame 43. The arched bridge 42 is fitted onto the outer circle of the saw blade body 1 and remains in a non-contact state. The arched bridge 42 is configured in two sets and is fixedly installed on the left and right sides of the stabilizer 41 respectively. The stabilizer 41 is rigidly connected to the suspension arm 2 by bolts. Two sets of connecting frames 43 are set up and symmetrically arranged on the back side of the stabilizer 41 with the saw blade body 1 as the center. The two sets of connecting frames 43 are fixedly installed on the opposite inner ends of the two sets of arched bridge frames 42. The connecting frames 43 are provided with symmetrically distributed locking mechanisms 6, so that the installation mechanism 4 forms a bridge support structure spanning both sides of the saw blade body 1 and provides an installation foundation for other functional mechanisms.

[0020] See attached document Figure 2 and attached Figure 3 The swing mechanism 5 includes a swing arm 51, a rotating shaft 52, and a mounting plate 54. The lower part of the swing arm 51 is rotatably connected to the side of the stabilizer 41 or the lower end of the arched bridge 42 through the rotating shaft 52. The mounting plate 54 is set as two parallel opposing pieces, and the two mounting plates 54 are rigidly connected by a connecting block. The lower part of the swing arm 51 is provided with an inward folding section 51c that bends towards the saw blade body 1. The structural design of the inward folding section 51c increases the inward angle when the swing arm 51 swings down, thereby driving the clamping mechanism 7 on the mounting plate 54 to achieve stable contact with the side of the saw blade body 1.

[0021] See attached document Figure 2 and attached Figure 4 The clamping mechanism 7 includes two sets of screw assemblies and a lubrication input pipe 76. Each set of screw assemblies includes multiple external threaded rods 71. The external threaded rods 71 ​​are respectively inserted into multiple mounting holes 54a opened on the mounting plate 54. Each external threaded rod 71 is equipped with two clamping nuts 72. By tightening the clamping nuts 72, the external threaded rod 71 is positioned and locked on the mounting plate 54. The end of the external threaded rod 71 facing the saw blade body 1 is provided with a diameter reduction section 73. The end of the diameter reduction section 73 is provided with a spherical groove. The spherical groove is embedded with freely rotatable balls 74. The balls 74 form rolling contact with the side of the saw blade body 1.

[0022] Furthermore, the lubrication input pipe 76 is connected to a multi-branch oil injection pipe 75, which is sealed and connected to the lubrication oil passage opened inside the external threaded rod 71, and the end of the lubrication oil passage is connected to the spherical groove cavity. The lubrication input pipe 76 is fixed to the fixed tube plate 53 by a pipe clamp. The fixed tube plate 53 is installed on the side of the swing arm 51 and is parallel to the plane of the saw blade body 1. The lubrication input pipe 76 is connected to the external cutting fluid supply system, thereby realizing continuous lubrication and enhancing the lubrication effect of the ball bearing 74 and the rotating contact surface of the saw blade body 1.

[0023] See attached document Figure 3 and attached Figure 5 The elastic expansion mechanism 8 includes a spring damper 81 and an extension screw 83. The extension screw 83 is coaxially connected to the external threaded rod 71 at one end of the spring damper 81. A collar 82 is fixedly installed at the screw end of the other end of the spring damper 81. The collar 82 is embedded in the U-shaped groove 51a opened at the upper end of the swing arm 51 and is detachably connected to the swing arm 51 by bolts. The spring damper 81 is a spring damping damper, so that the two swing mechanisms 5 in the same group can achieve elastic expansion adjustment of the upper distance through the elastic expansion mechanism 8. At the same time, when the saw blade body 1 vibrates, the damping characteristics of the spring damper 81 consume the vibration energy and achieve the vibration suppression effect. The spring damper 81 has a stiffness coefficient preferably ranging from 50 N / mm to 200 N / mm to balance the vibration damping rigidity and elastic buffering requirements. The damping coefficient is set to 0.15 to 0.35 N·s / mm to ensure effective dissipation of chatter energy. The working stroke should be no less than ±5 mm to accommodate the maximum expected amplitude of the saw blade. The rated load capacity is designed to be ≥800 N per piece to withstand the dynamic load transmitted by the clamping mechanism 7. The resonance frequency should avoid the excitation frequency corresponding to the common working speed of the saw blade (usually controlled below 80Hz). The spring material is selected from 60Si2Mn chromium silicon alloy steel to ensure high fatigue life. The working temperature range covers -20℃ to +120℃ to adapt to high-speed cutting conditions. The installation interface adopts M10-M12 standard threads to achieve rigid connection with the device structure. The optimal vibration damping preload is established by adjusting the nut to preset the initial compression amount (recommended to be 20%-30% of the total stroke).

[0024] Furthermore, the extension screw 83 passes through the elongated hole 51b opened at the upper end of another swing arm 51 in the same group. A conical spacer 84 is fitted on the extension screw 83. The end face of the conical spacer 84 contacts the side of the swing arm 51. An adjusting nut 85 is screwed on the extension screw 83. By tightening the adjusting nut 85, the upper ends of the two swing arms 51 in the same group can be pushed away from each other, thereby adjusting the clamping force of the lower end clamping mechanism 7 of the swing arm 51 on the saw blade body 1.

[0025] Furthermore, the locking mechanism 6 includes a fixed plate 61 and two clamping plates 62 vertically fixed to the side of the fixed plate 61. The two clamping plates 62 are inserted into the flange of the suspension arm 2. An insert plate 63 is vertically provided on one side of the bottom surface of the fixed plate 61. The insert plate 63 is inserted into the vertical tube provided on the connecting frame 43. Thus, the fixed plate 61 is locked to the suspension arm 2 through insertion, providing auxiliary support for the connecting frame 43 and enhancing the stability of the overall structure.

[0026] With the above structure, when the saw blade body 1 experiences chattering during high-speed cutting, its lateral vibration energy is first transmitted to the external threaded rod 71 of the clamping mechanism 7 through the ball bearing 74, which in turn drives the mounting plate 54 and the swing arm 51 hinged thereto to swing in opposite directions. At this time, the elastic expansion mechanism 8 connected between the upper ends of the two swing arms 51 in the same group responds: the spring damper 81 converts the mechanical vibration energy into heat energy dissipation through its internal damping medium, and at the same time absorbs and stores part of the impact energy through elastic deformation. This process keeps the lower end of the swing arm 51 always in a stable position. By maintaining dynamic elastic constraints on the saw blade body 1, when the preload preset by the adjusting nut 85 reaches equilibrium with the vibration load, the device forms an adaptive vibration damping mechanism—both by rigidly supporting and suppressing the amplitude expansion, and by using elastic damping to continuously consume vibration energy, thereby breaking the vicious cycle of "cutting force-deformation-vibration force"; at the same time, the lubrication input pipe 76 continuously delivers cutting fluid to the contact surface of the ball 74, ensuring that the vibration damping mechanism works stably under low friction, and finally, the saw blade body 1 rapidly attenuates the vibration amplitude under the action of multiple vibration damping mechanisms, restoring a stable cutting state.

[0027] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part all adopt conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art. This application is mainly used to protect mechanical devices. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, are implemented according to conventional methods in the field and relevant national standards.

Claims

1. A vibration suppression device for a high-speed circular saw blade, characterized in that: The saw blade body (1) includes a saw blade body (1) and a stabilizing component disposed on the saw blade body (1). The stabilizing component is also mounted on a suspension arm (2). A central shaft (3) is rotatably mounted on the suspension arm (2). The saw blade body (1) is fixedly mounted to the end of the central shaft (3) by a nut. The stabilizing components include an installation mechanism (4), a swing mechanism (5), a clamping mechanism (7), and an elastic expansion mechanism (8). The swing mechanism (5) is configured in two groups, and the two groups are symmetrically arranged on the left and right sides of the installation mechanism (4). Each swing mechanism (5) contains two independently moving swing units. The clamping mechanism (7) is configured in two groups, each group containing two clamping units, and is symmetrically installed at the lower working end of each group of two swing mechanisms (5). The elastic expansion mechanism (8) is configured as two, respectively arranged between the upper connecting ends of the two swing mechanisms (5) in each group.

2. The saw blade vibration suppression device for a high-speed circular saw according to claim 1, characterized in that: The installation mechanism (4) includes a stabilizer (41), an arched bridge (42), and a connecting frame (43). The arched bridge (42) is fitted onto the outer circle of the saw blade body (1) and remains in a non-contact state. The arched bridge (42) is set in two sets and is fixedly installed on the left and right sides of the stabilizer (41). The stabilizer (41) is rigidly connected to the suspension arm (2) by bolts. The connecting frame (43) is configured in two sets, symmetrically arranged on the back side of the stabilizer (41) with the saw blade body (1) as the center. The two sets of connecting frames (43) are respectively fixedly installed on the opposite inner ends of the two sets of arched bridge frames (42). The connecting frame (43) is provided with symmetrically distributed locking mechanisms (6).

3. The saw blade vibration suppression device for a high-speed circular saw according to claim 2, characterized in that: The swing mechanism (5) includes a swing arm (51), a rotating shaft (52) and a mounting plate (54). The lower part of the swing arm (51) is rotatably connected to the side of the stabilizer (41) or the lower end of the arched bridge (42) through the rotating shaft (52). The mounting plate (54) is set as two parallel opposing pieces. The two mounting plates (54) are rigidly connected by a connecting block. The lower part of the swing arm (51) is provided with an inwardly bent section (51c) that bends towards the saw blade body (1).

4. The saw blade vibration suppression device for a high-speed circular saw according to claim 3, characterized in that: The clamping mechanism (7) includes two sets of screw assemblies and a lubrication input pipe (76). Each set of screw assemblies includes multiple external thread rods (71). The external thread rods (71) are respectively inserted into multiple mounting holes (54a) on the mounting plate (54). Each external thread rod (71) is equipped with two clamping nuts (72). By tightening the clamping nuts (72), the external thread rods (71) are positioned and locked on the mounting plate (54). The end of the external thread rod (71) facing the saw blade body (1) is provided with a diameter reduction section (73). The end of the diameter reduction section (73) is provided with a spherical groove. The spherical groove is embedded with freely rotatable balls (74). The balls (74) form rolling contact with the side of the saw blade body (1).

5. The saw blade vibration suppression device for a high-speed circular saw according to claim 4, characterized in that: The lubrication input pipe (76) is connected to a multi-branch oil injection pipe (75), and the branch oil injection pipe (75) is sealed and connected to the lubrication oil passage opened inside the external thread rod (71), and the end of the lubrication oil passage is connected to the spherical groove cavity. The lubrication input pipe (76) is fixed to the fixed tube plate (53) by a pipe clamp. The fixed tube plate (53) is installed on the side of the swing arm (51) and is parallel to the plane of the saw blade body (1). The lubrication input pipe (76) is connected to the external cutting fluid supply system.

6. The saw blade vibration suppression device for a high-speed circular saw according to claim 5, characterized in that: The elastic expansion mechanism (8) includes a spring damper (81) and an extension screw (83). The extension screw (83) is coaxially connected to the external threaded rod (71) at one end of the spring damper (81). A collar (82) is fixedly installed at the screw end of the other end of the spring damper (81). The collar (82) is embedded in the U-shaped groove (51a) opened at the upper end of the swing arm (51) and is detachably connected to the swing arm (51) by bolts.

7. The saw blade vibration suppression device for a high-speed circular saw according to claim 6, characterized in that: The extension screw (83) is inserted into the elongated hole (51b) at the upper end of another swing arm (51) in the same group. A conical spacer (84) is fitted on the extension screw (83). The end face of the conical spacer (84) contacts the side of the swing arm (51). An adjusting nut (85) is screwed on the extension screw (83).

8. The saw blade vibration suppression device for a high-speed circular saw according to claim 7, characterized in that: The locking mechanism (6) includes a fixed plate (61) and two clamping plates (62) vertically fixed to the side of the fixed plate (61). The two clamping plates (62) are inserted into the flange of the suspension arm (2). A plug plate (63) is vertically provided on one side of the bottom surface of the fixed plate (61). The plug plate (63) is inserted into the vertical tube provided on the connecting frame (43).

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