Adaptive synchronous saw blade damping device and control method

Abstract

The application provides a self-adaptive synchronous saw blade damping device and a control method; the device is composed of the following components: a fixed base (1), a connecting rod (2), a long pin shaft (3), an electric cylinder (4), a fixed pin (5), a saw blade (6), a first connecting pipeline (7), a second connecting pipeline (8), a rotating shaft (9), a movable seat (10), a fixed screw (11), a pipe joint (12), a screw (13), an inner top shaft (14), a cylinder cover (15), a piston (16), a pressing screw (17), a disc spring (18), and a damping sheet (19); the application also relates to a control method of the aforementioned device. The application realizes automatic synchronous adjustment of the gap between the saw blade and the damping plate, and automatically compensates according to the self-adaptive adjustment of the saw blade deflection after the damping plate wears, reduces the phenomenon that workers frequently adjust the position of the damping sheet, is favorable for reducing the labor intensity, is favorable for reducing the sawing noise, optimizes the sawing quality, prolongs the service life of the saw blade, and has the advantages of good damping effect.

Description

Technical Field

[0001] This invention belongs to the field of sawing; in particular, it relates to an adaptive synchronous saw blade vibration damping device and control method. Background Technology

[0002] Currently, existing sawing vibration damping devices mainly rely on manual adjustment, where the damping plates on the inner and outer sides of the saw blade are adjusted to achieve friction between the damping plates and the saw blade, thus reducing vibration. This method has the following drawbacks: the damping plates wear out quickly; frequent manual adjustment of the friction plates and saw blade position is required, resulting in high labor intensity; and because the friction between the saw blade and the damping plates is hard, the saw blade may wobble during sawing, easily forming one-sided line contact with the damping plates, thereby increasing wear and reducing the damping effect. Based on the shortcomings of the existing technology, there is an urgent need for an adaptive synchronous saw blade vibration damping device that solves these problems, thereby reducing manual labor intensity, lowering sawing noise, optimizing sawing quality, and increasing saw blade life, while also offering advantages such as high automation and effective vibration damping. Summary of the Invention

[0003] The purpose of this invention is to provide an adaptive synchronous saw blade vibration damping device and control method.

[0004] This invention is achieved through the following technical solution:

[0005] This invention relates to an adaptive synchronous saw blade vibration damping device, which consists of the following components: a fixed base 1, a connecting rod 2, a long pin 3, an electric cylinder 4, a fixing pin 5, a saw blade 6, a first connecting pipe 7, a second connecting pipe 8, a rotating shaft 9, a movable seat 10, a fixing screw 11, a pipe joint 12, a screw 13, an inner top shaft 14, a cylinder cover 15, a piston 16, a clamping screw 17, a disc spring 18, and a vibration damping plate 19.

[0006] in,

[0007] The fixed base 1 and the movable base 10 are connected by a rotating shaft 9;

[0008] The fixed base 1 is connected to the electric cylinder 4 via the connecting rod 2, and the electric cylinder 4 is used to push the connecting rod 2 to rotate.

[0009] Link 2 is connected to the inner top shaft 14 by a key;

[0010] Connecting rod 2 is connected to electric cylinder 4 via long pin 3;

[0011] The tail of the electric cylinder 4 is connected to the fixed base 1 via a fixing pin 5;

[0012] The front chamber of the cylinder on the fixed base 1 is connected to the rear chamber of the cylinder on the movable base 10 through the first connecting pipe 7;

[0013] The cylinder front chamber of the movable seat 10 is connected to the fixed base through the second connecting pipe 8;

[0014] The pipe joint 12 is located at the top end of the inner top shaft 14, and the shock absorber 19 is located at the bottom end of the inner top shaft 14.

[0015] The cylinder cover 15 is mounted on the fixed base 1 by screws 13 to seal the rear cavity of the cylinder;

[0016] The piston 16 is installed inside the fixed base 1 and is driven to move back and forth to approach or move away from the saw blade 6 via a hydraulic circuit;

[0017] The inner top shaft 14 is installed inside the piston 16. The tail of the inner top shaft 14 is connected to the tail of the piston 16 by a thread, and the inner top shaft 14 can rotate freely under the drive of the electric cylinder 4. In this way, a small forward and backward movement function can be realized under the action of the threaded pair.

[0018] The damping plate 19 is mounted on the large end face of the piston 16 via the disc spring 18.

[0019] Preferably, the saw blade 6 can be removed when the movable seat 10 rotates 90°.

[0020] Preferably, the long pin shaft 3 is relatively long, so that the electric cylinder 4 and the connecting rod 2 produce a certain axial displacement to compensate for the axial movement of the piston 16.

[0021] Preferably, both the first connecting pipe 7 and the second connecting pipe 8 are retractable spiral hoses, which facilitates the opening of the movable seat 10 without damaging the oil circuit.

[0022] Preferably, the pipe joint 12 is used to introduce external compressed air into the inner top shaft 14 and deliver it to the damping plate 19 through the internal pipeline.

[0023] Preferably, the shock absorber 19 has eight evenly distributed small holes around its periphery, which are used to introduce compressed air between the saw blade 6 and the shock absorber 19 to form an air film.

[0024] Preferably, the damping plate 19 is mounted on the large end face of the piston 16 through the disc spring 18 via the clamping screw 17.

[0025] Preferably, the number of clamping screws 17 is six, and they are evenly distributed circumferentially. This allows the damping plate 19 to generate a certain floating deflection effect according to the swing of the saw blade 6, thus achieving an adaptive function.

[0026] Preferably, the inner center of the damping plate 19 is connected to the inner top shaft 14 by a ball joint, which enables it to move closer to or further away from the saw blade 6 under the action of the inner top shaft 14 without affecting its deflection. The functional structure of the movable seat 10 is the same as that of the fixed base 1, with only the oil circuit connection being different; the damping plate 19 adapts to the deflection of the saw blade 6 under the action of the disc spring 18.

[0027] The present invention also relates to a control method for the aforementioned adaptive synchronous saw blade vibration damping device, comprising the following steps:

[0028] First, install the saw blade 6 into place, close the movable seat 10 and tighten the fixing screws;

[0029] In preparation for sawing, the electric cylinder 4 extends to its limit position, and the inner top shaft 14 extends. At this time, oil is supplied through port P of the oil circuit. The hydraulic oil enters the rear cavity of the cylinder in the fixed base 1 and pushes the cylinder to move towards the saw blade 6. The hydraulic oil in the front cavity of the cylinder enters the rear cavity of the cylinder in the movable seat 10 through the oil circuit and pushes the cylinder in the movable seat 10 to move towards the saw blade 6. The hydraulic oil in the front cavity of the cylinder in the movable seat 10 returns to the fixed base 1 through the oil circuit and returns through port T. During this process, since the cylinder diameters of the fixed seat hydraulic cylinder and the movable seat hydraulic cylinder are the same, and the oil circuit connects the front cavity of the fixed seat cylinder and the rear cavity of the movable seat cylinder, the two hydraulic cylinders will move synchronously towards each other.

[0030] When the hydraulic cylinder moves to its position and is in close contact with the saw blade 6, the hydraulic oil circuit is cut off, the hydraulic cylinder stops moving, the electric cylinder 4 retracts, and drives the inner top shaft 14 to rotate. Since the inner top shaft and the piston tail are threadedly connected, when the electric cylinder 4 retracts, the inner top shaft 14 rotates and retracts relative to the piston 16. The stroke of the electric cylinder 4 is controlled so that the retraction distance of the inner top shaft 14 is controllable. Generally, the retraction distance of the inner top shaft is required to be 0.1mm. After the inner top shaft 14 retracts, the damping plate 19 retracts along with the inner top shaft 14 due to the pressure generated by the disc spring 18, and a small gap is formed between it and the saw blade 6. Compressed air enters between the damping plate 19 and the saw blade 6 to form a gas film for saw blade vibration damping.

[0031] Since the damping plate 19 is pressed onto the piston 16 by six bolts arranged around the perimeter through the disc spring 18, the damping plate 19 can adapt to the saw blade angle according to the saw blade's sway during the rotation of the saw blade 6, thereby realizing the follow-up damping of the saw blade, reducing the wear of the damping plate 19 while improving the damping effect, and achieving good damping of the saw blade. At this time, the saw blade 6 can perform sawing work.

[0032] When the saw blade 6 finishes sawing and axially retracts, oil is supplied to the T-port, and the piston 16 synchronously moves away from the saw blade 6, allowing the saw blade to move axially into idle position, thus realizing the saw blade 6 retracting movement. The above sawing vibration reduction operation is repeated for the next sawing. The adaptive synchronous saw blade vibration reduction device involved in this invention is applicable to various sawing modes, that is, both sawing with the blade retracting and sawing without the blade retracting are applicable.

[0033] The present invention has the following advantages:

[0034] (1) The device involved in this invention realizes the synchronous movement of the damping plates on both sides of the saw blade through a synchronous hydraulic circuit, so that the damping plates are in close contact with the saw blade base.

[0035] (2) The device involved in this invention uses an electric cylinder to drive a telescopic rod installed inside the piston to retract, thereby creating a tiny gap between the shock-absorbing plate and the saw blade substrate, and then introducing high-pressure compressed air into the tiny gap to form a high-pressure air film, thereby achieving shock absorption of the saw blade.

[0036] (3) In the device involved in the present invention, the damping plate realizes adaptive adjustment of the saw blade base body sway through the disc spring, avoiding excessive hard friction between the damping plate and the saw blade base body, thereby improving the damping effect and increasing the life of the damping plate.

[0037] (4) The device involved in this invention realizes automatic adjustment of the gap between the saw blade and the damping plate, realizes automatic compensation adjustment after the damping plate wears, avoids the situation where workers frequently adjust the position of the damping plate due to the wear of the damping plate, which is conducive to reducing the intensity of manual labor. After the vibration of the saw blade is reduced, it is conducive to reducing sawing noise, optimizing sawing quality, and improving the life of the saw blade. It has the advantages of high automation and good shock absorption effect. Attached Figure Description

[0038] Figure 1 This is a schematic diagram of an adaptive synchronous saw blade vibration damping device involved in this invention;

[0039] Figure 2 This is a simplified front view of an adaptive synchronous saw blade vibration damping device involved in this invention;

[0040] Figure 3 This is a partially enlarged schematic diagram of the structure of an adaptive synchronous saw blade vibration damping device involved in this invention;

[0041] Attached diagram labels: 1 is fixed base, 2 is connecting rod, 3 is long pin, 4 is electric cylinder, 5 is fixed pin, 6 is saw blade, 7 is first connecting pipe, 8 is second connecting pipe, 9 is rotating shaft, 10 is movable seat, 11 is fixing screw, 12 is pipe joint, 13 is screw, 14 is inner top shaft, 15 is cylinder cover, 16 is piston, 17 is clamping screw, 18 is disc spring, and 19 is shock absorber. Detailed Implementation

[0042] The present invention will now be described in detail with reference to specific embodiments. It should be noted that the following embodiments are merely further illustrations of the present invention, but the scope of protection of the present invention is not limited to the following embodiments.

[0043] Example

[0044] This embodiment relates to an adaptive synchronous saw blade vibration damping device, see attached document. Figure 1 , Figure 2 , Figure 3 As shown: It consists of the following components: fixed base 1, connecting rod 2, long pin 3, electric cylinder 4, fixing pin 5, saw blade 6, first connecting pipe 7, second connecting pipe 8, rotating shaft 9, movable seat 10, fixing screw 11, pipe joint 12, screw 13, inner top shaft 14, cylinder cover 15, piston 16, clamping screw 17, disc spring 18, shock absorber 19.

[0045] The fixed base 1 and the movable base 10 are connected by a rotating shaft 9;

[0046] The fixed base 1 is connected to the electric cylinder 4 via the connecting rod 2, and the electric cylinder 4 is used to push the connecting rod 2 to rotate.

[0047] Link 2 is connected to the inner top shaft 14 by a key;

[0048] Connecting rod 2 is connected to electric cylinder 4 via long pin 3;

[0049] The tail of the electric cylinder 4 is connected to the fixed base 1 via a fixing pin 5;

[0050] The front chamber of the cylinder on the fixed base 1 is connected to the rear chamber of the cylinder on the movable base 10 through the first connecting pipe 7;

[0051] The cylinder front chamber of the movable seat 10 is connected to the fixed base through the second connecting pipe 8;

[0052] The pipe joint 12 is located at the top end of the inner top shaft 14, and the shock absorber 19 is located at the bottom end of the inner top shaft 14.

[0053] The cylinder cover 15 is mounted on the fixed base 1 by screws 13 to seal the rear cavity of the cylinder;

[0054] The piston 16 is installed inside the fixed base 1 and is driven to move back and forth to approach or move away from the saw blade 6 via a hydraulic circuit;

[0055] The inner top shaft 14 is installed inside the piston 16. The tail of the inner top shaft 14 is connected to the tail of the piston 16 by a thread, and the inner top shaft 14 can rotate freely under the drive of the electric cylinder 4. In this way, a small forward and backward movement function can be realized under the action of the threaded pair.

[0056] The damping plate 19 is mounted on the large end face of the piston 16 via the disc spring 18.

[0057] The saw blade 6 can only be removed when the movable seat 10 rotates 90°.

[0058] The long pin shaft 3 is relatively long, which causes the electric cylinder 4 and the connecting rod 2 to have a certain axial displacement, compensating for the axial movement of the piston 16.

[0059] Both the first connecting pipe 7 and the second connecting pipe 8 are retractable spiral hoses. This allows the movable seat 10 to be opened without damaging the oil passage.

[0060] The pipe joint 12 is used to introduce external compressed air into the inner top shaft 14 and deliver it to the damping plate 19 through the internal pipeline; the damping plate 19 adapts to the swing of the saw blade 6 under the action of the disc spring 18.

[0061] The shock absorber 19 has eight evenly distributed small holes around its perimeter, which are used to introduce compressed air between the saw blade 6 and the shock absorber 19 to form an air film.

[0062] The damping plate 19 is mounted on the large end face of the piston 16 through the disc spring 18 via the clamping screw 17.

[0063] The number of clamping screws 17 is six, and they are evenly distributed circumferentially. This allows the damping plate 19 to produce a certain floating deflection effect according to the swing of the saw blade 6, thus achieving an adaptive function.

[0064] The internal center of the damping plate 19 is connected to the inner top shaft 14 by a ball joint, which allows it to move closer to or further away from the saw blade 6 under the action of the inner top shaft 14 without affecting its deflection. The functional structure of the movable seat 10 is the same as that of the fixed base 1, with the only difference being the oil circuit connection.

[0065] This embodiment also relates to the control method of the aforementioned adaptive synchronous saw blade vibration damping device, including the following steps:

[0066] First, install the saw blade 6 into place, close the movable seat 10 and tighten the fixing screws;

[0067] In preparation for sawing, the electric cylinder 4 extends to its limit position, and the inner top shaft 14 extends. At this time, oil is supplied through port P of the oil circuit. The hydraulic oil enters the rear cavity of the cylinder in the fixed base 1 and pushes the cylinder to move towards the saw blade 6. The hydraulic oil in the front cavity of the cylinder enters the rear cavity of the cylinder in the movable seat 10 through the oil circuit and pushes the cylinder in the movable seat 10 to move towards the saw blade 6. The hydraulic oil in the front cavity of the cylinder in the movable seat 10 returns to the fixed base 1 through the oil circuit and returns through port T. During this process, since the cylinder diameters of the fixed seat hydraulic cylinder and the movable seat hydraulic cylinder are the same, and the oil circuit connects the front cavity of the fixed seat cylinder and the rear cavity of the movable seat cylinder, the two hydraulic cylinders will move synchronously towards each other.

[0068] When the hydraulic cylinder moves to its position and is in close contact with the saw blade 6, the hydraulic oil circuit is cut off, the hydraulic cylinder stops moving, the electric cylinder 4 retracts, and drives the inner top shaft 14 to rotate. Since the inner top shaft and the piston tail are threadedly connected, when the electric cylinder 4 retracts, the inner top shaft 14 rotates and retracts relative to the piston 16. The stroke of the electric cylinder 4 is controlled so that the retraction distance of the inner top shaft 14 is controllable. Generally, the retraction distance of the inner top shaft is required to be 0.1mm. After the inner top shaft 14 retracts, the damping plate 19 retracts along with the inner top shaft 14 due to the pressure generated by the disc spring 18, and a small gap is formed between it and the saw blade 6. Compressed air enters between the damping plate 19 and the saw blade 6 to form a gas film for saw blade vibration damping.

[0069] Since the damping plate 19 is pressed onto the piston 16 by six bolts arranged around the perimeter through the disc spring 18, the damping plate 19 can adapt to the saw blade angle according to the saw blade's sway during the rotation of the saw blade 6, thereby realizing the follow-up damping of the saw blade, reducing the wear of the damping plate 19 while improving the damping effect, and achieving good damping of the saw blade. At this time, the saw blade 6 can perform sawing work.

[0070] When the saw blade 6 finishes sawing and axially retracts, oil is supplied to the T-port, and the piston 16 synchronously moves away from the saw blade 6, allowing the saw blade to move axially into idle position, thus realizing the saw blade 6 retracting movement. The above sawing vibration reduction operation is repeated for the next sawing. The adaptive synchronous saw blade vibration reduction device involved in this invention is applicable to various sawing modes, that is, both sawing with the blade retracting and sawing without the blade retracting are applicable.

[0071] The device involved in this invention achieves synchronous movement of the damping plates on both sides of the saw blade through a synchronous hydraulic circuit, ensuring close contact between the damping plates and the saw blade base. A telescopic rod installed inside the piston is retracted via an electric cylinder, creating a tiny gap between the damping plate and the saw blade base. High-pressure compressed air is introduced into this gap to form a high-pressure air film, thereby achieving vibration damping of the saw blade. The damping plate of this invention uses a disc spring to adaptively adjust the sway of the saw blade base, avoiding excessive hard friction between the damping plate and the saw blade base, thus improving the damping effect and extending the life of the damping plate. This invention achieves automatic adjustment of the gap between the saw blade and the damping plate, enabling automatic compensation adjustment after the damping plate wears, avoiding the need for frequent adjustments of the damping plate position by workers due to damping plate wear. This helps reduce manual labor intensity. Reduced saw blade vibration helps reduce sawing noise, optimize sawing quality, and extend saw blade life. It has the advantages of high automation and good vibration damping effect.

[0072] The specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various modifications or variations within the scope of the claims, which do not affect the essence of the present invention.

Claims

1. An adaptive synchronous saw blade vibration damping device, characterized in that, It consists of the following components: fixed base (1), connecting rod (2), long pin shaft (3), electric cylinder (4), fixing pin (5), saw blade (6), first connecting pipe (7), second connecting pipe (8), rotating shaft (9), movable seat (10), fixing screw (11), pipe joint (12), screw (13), inner top shaft (14), cylinder cover (15), piston (16), clamping screw (17), disc spring (18), and shock absorber (19). The fixed base (1) and the movable base (10) are connected by a rotating shaft (9); The fixed base (1) is connected to the electric cylinder (4) via the connecting rod (2), and the electric cylinder (4) is used to push the connecting rod (2) to rotate; The connecting rod (2) is connected to the inner top shaft (14) by a key; The connecting rod (2) is connected to the electric cylinder (4) via a long pin (3); The tail of the electric cylinder (4) is connected to the fixed base (1) by a fixing pin (5); The front chamber of the cylinder on the fixed base (1) is connected to the rear chamber of the cylinder on the movable seat (10) through the first connecting pipe (7); The cylinder front chamber of the movable seat (10) is connected to the fixed base (1) through the second connecting pipe (8); The pipe joint (12) is located at the top of the inner top shaft (14), and the damping plate (19) is located at the bottom of the inner top shaft (14); The cylinder head (15) is mounted on the fixed base (1) by screws (13); The piston (16) is installed inside the fixed base (1) and is driven to move back and forth to approach or move away from the saw blade (6) via a hydraulic circuit. The inner top shaft (14) is installed inside the piston (16), and the tail of the inner top shaft (14) is connected to the tail of the piston (16) by a thread; The damping plate (19) is mounted on the large end face of the piston (16) via the disc spring (18); The pipe joint (12) is used to introduce external compressed air into the inner top shaft (14) and deliver it to the damping plate (19) through the internal pipeline. The shock absorber (19) has eight evenly distributed small holes around its perimeter, which are used to introduce compressed air between the saw blade (6) and the shock absorber (19) to form an air film.

2. The adaptive synchronous saw blade vibration damping device as described in claim 1, characterized in that, When the movable seat (10) rotates 90°, the saw blade (6) can be removed.

3. The adaptive synchronous saw blade vibration damping device as described in claim 1, characterized in that, The long pin (3) is relatively long, which causes the electric cylinder (4) and the connecting rod (2) to have a certain axial displacement, compensating for the axial movement of the piston (16).

4. The adaptive synchronous saw blade vibration damping device as described in claim 1, characterized in that, Both the first connecting pipe (7) and the second connecting pipe (8) are made of retractable spiral hoses.

5. The adaptive synchronous saw blade vibration damping device as described in claim 1, characterized in that, The damping plate (19) is installed on the large end face of the piston (16) through the disc spring (18) via the clamping screw (17).

6. The adaptive synchronous saw blade vibration damping device as described in claim 1, characterized in that, The number of clamping screws (17) is 6, and they are evenly distributed in the circumference.

7. The adaptive synchronous saw blade vibration damping device as described in claim 1, characterized in that, The inner center of the damping plate (19) is connected to the inner top shaft (14) by a ball joint. Under the action of the disc spring (18), the damping plate (19) adapts to the swing of the saw blade (6).

8. A control method for the adaptive synchronous saw blade vibration damping device as described in claim 1, characterized in that, Includes the following steps: First, install the saw blade (6) into place, close the movable seat (10) and tighten the fixing screws; Prepare for sawing. The electric cylinder (4) extends to its limit position and the inner top shaft (14) extends. At this time, the oil circuit P port is open. The hydraulic oil enters the rear cavity of the cylinder of the fixed base (1) and pushes the cylinder to move towards the saw blade (6). The hydraulic oil in the front cavity of the cylinder enters the rear cavity of the cylinder of the movable seat (10) through the oil circuit and pushes the cylinder of the movable seat (10) to move towards the saw blade (6). The hydraulic oil in the front cavity of the cylinder of the movable seat (10) returns to the fixed base (1) through the oil circuit and returns through the T port. When the hydraulic cylinder moves to its position and is in close contact with the saw blade (6), the hydraulic oil circuit is cut off, the hydraulic cylinder stops moving, the electric cylinder (4) retracts, and drives the inner top shaft (14) to rotate. When the electric cylinder (4) retracts, the inner top shaft (14) rotates so that it retracts relative to the piston (16). When the inner top shaft (14) retracts, the damping plate (19) retracts along with the inner top shaft (14) due to the pressure generated by the disc spring (18) and creates a small gap with the saw blade (6). Compressed air enters between the damping plate (19) and the saw blade (6) to form a gas film for saw blade damping. When the saw blade (6) finishes sawing and moves axially, oil is supplied to the T port, and the piston (16) moves away from the saw blade (6) in sync, allowing the saw blade to move axially and thus realizing the saw blade (6) moving. The above sawing vibration reduction operation is repeated when sawing again.

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