Damper device

Abstract

The invention provides a damping device, and belongs to the technical field of machining. The vibration reduction device comprises a base, a placing frame, a first elastic piece and a clamping assembly, the placing frame is located at the top of the base and slidably connected with the base, the first elastic piece is arranged in the base, and the two ends of the first elastic piece are connected with the bottom of the placing frame and the base correspondingly; the telescopic direction of the first elastic piece is the same as the moving direction of the placing frame and is the direction from the base to the placing frame; the clamping assembly comprises two clamping pieces and a transmission unit, the two clamping pieces are located on the two opposite sides of the containing frame correspondingly, each clamping piece is slidably connected with the base, and the moving direction of the clamping pieces relative to the base is perpendicular to the telescopic direction of the first elastic piece. The part can be prevented from transversely moving, and machining of the part is facilitated.

Description

Technical Field

[0001] The present disclosure belongs to the field of mechanical processing technology, and in particular relates to a vibration damping device. Background Art

[0002] Vibration dampers are often installed at the bottom of some parts to provide vibration damping function for these parts.

[0003] In related art, vibration damping devices have a relatively simple structure, typically consisting of a base, a mounting frame, two clamping members connected to the mounting frame, and multiple elastic members connecting the mounting frame and the base. During use, a component is placed on the mounting frame, where the two clamping members clamp and retain the component in place. If the mounting frame vibrates, the elastic members dampen the component's vertical vibration.

[0004] However, when the part vibrates, the clamping member may become loose and difficult to position the part, causing the part to move laterally, making it inconvenient to perform processing operations on the part. Summary of the Invention

[0005] The embodiment of the present disclosure provides a vibration damping device that can prevent lateral movement of parts and facilitate the processing of parts. The technical solution is as follows:

[0006] 7. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 1, wherein said linking rod and said adjusting base are pivotally connected to each other with a bolt, and said bolt has a round shank to contact with said linking rod. said linking rod is pivotally connected to said linking rod. said linking rod is pivotally connected to said linking rod. said linking rod is pivotally connected to said linking rod.

[0007] In another embodiment of the present disclosure, the transmission unit includes a rotating shaft, a mainspring, a gear ring and two racks; one end of the rotating shaft is movably connected to the placement frame and the other end is rotatably connected to the bottom of the base; the mainspring is located on one side of the rotating shaft and one end is connected to the outer wall of the rotating shaft; the gear ring is sleeved outside the mainspring and is connected to the other end of the mainspring; the two racks correspond one-to-one to the two clamping members and are respectively located outside the opposite sides of the gear ring, one end of each rack is connected to the corresponding clamping member, and the other end is to the gear ring, and the length direction of the rack is perpendicular to the extension and contraction direction of the first elastic member; wherein, the rotating shaft is configured to rotate when the placement frame moves, the mainspring is configured to tighten under the action of the rotation of the rotating shaft, and the mainspring drives the two racks to move toward each other when it is relaxed.

[0008] In another embodiment of the present disclosure, the placement rack includes a placement plate and a vertical shaft, the vertical shaft is located between the placement plate and the base, one end of the vertical shaft is connected to the placement plate, and the other end is slidably engaged with the top of the base, and the length direction of the vertical shaft is the same as the movement direction of the placement rack; the side walls of the vertical shaft are respectively provided with a spiral groove and a vertical groove, the top end of the spiral groove is connected with the top end of the vertical groove, and the bottom end of the spiral groove is connected with the bottom end of the vertical groove, the depth of the spiral groove gradually decreases along the upward spiral direction, and the minimum value is greater than the depth of the vertical groove, the extension direction of the vertical groove is the length direction of the vertical shaft, and the end of the rotating shaft away from the base is located in the spiral groove.

[0009] In another embodiment of the present disclosure, the clamping assembly further includes a limiting unit, which includes a one-way bearing and a locking ring component; the inner ring of the one-way bearing is sleeved outside the bottom of the gear ring and connected to the gear ring, the locking ring component is connected to the base and sleeved outside the outer ring of the one-way bearing, and the locking ring component is connected to the outer ring of the one-way bearing to limit the rotation of the outer ring of the one-way bearing.

[0010] In another embodiment of the present disclosure, the locking ring component includes a gear ring, an arc-shaped bar and a connecting rod; the gear ring is sleeved outside the one-way bearing and is connected to the outer ring of the one-way bearing, and the arc-shaped bar is located outside the gear ring and is meshed with the gear ring through square teeth; one end of the connecting rod is connected to the arc-shaped bar, and the other end is connected to the base.

[0011] In another implementation of the present disclosure, the locking ring component further includes a second elastic member, which is sleeved outside the connecting rod and has two ends respectively abutting against the arc strip and the inner wall of the base.

[0012] In another embodiment of the present disclosure, the locking ring component further includes a plurality of limit blocks, which are located in the base at circumferential intervals along the gear ring, and each of the limit blocks is connected to the outer ring of the one-way bearing, and the limit blocks are clamped together with the base along the moving direction of the placement rack.

[0013] In another embodiment of the present disclosure, the clamping assembly further includes a telescopic rod and a sliding rod, the telescopic rod and the sliding rod are coaxially arranged and both are located in the base, one end of the telescopic rod is connected to the side wall of the base, and the other end is connected to one end of the sliding rod, the length direction of the telescopic rod is the same as the arrangement direction of the two clamping members, and the telescopic rod can be telescoped along its own length direction; the other end of the sliding rod is connected to one of the two clamping members, and when the telescopic rod is telescoped, it can drive the connected clamping member to move toward or away from the other clamping member.

[0014] In another embodiment of the present disclosure, the clamping assembly further includes a third elastic member, which is located between the two clamping members and is sleeved outside the sliding rod, and the two ends of the third elastic member respectively abut against the end of the sliding rod and the clamping member connected to the sliding rod.

[0015] In another embodiment of the present disclosure, the base includes a shell, a connecting plate, a screw and a nut, and the two opposite inner walls of the shell are respectively provided with a slide groove, and the extension direction of the slide groove is the extension direction of the first elastic member; the connecting plate is located in the shell, and the opposite sides are respectively located in the two slide grooves, the connecting plate is slidably matched with the groove wall of the slide groove, the first elastic member is located in the shell and the two ends are respectively connected to the connecting plate and the top of the shell; the nut is connected to the connecting plate, one end of the screw is connected to the nut, and the other end is located outside the shell, the middle part of the screw is located in the shell and rotatably matched with the shell, and the length direction of the screw is the same as the extension direction of the first elastic member.

[0016] The technical solutions provided by the embodiments of the present disclosure have the following beneficial effects:

[0017] Because the vibration damping device also includes a clamping assembly, and the clamping assembly includes two clamping members and a transmission unit, the two clamping members can clamp the parts placed on the placement rack, preventing the parts from shifting laterally. Furthermore, because the transmission unit is respectively connected to the two clamping members and the placement rack, the transmission unit is configured to drive the two clamping members to move toward each other during the movement of the placement rack. Therefore, when the placement rack moves up and down due to vibration, the two clamping members can move toward each other under the drive of the transmission unit, thereby clamping the parts, preventing the parts from shifting due to vibration, and facilitating part processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0019] Figure 1 is a structural schematic diagram of a vibration reduction device provided by an embodiment of the present disclosure;

[0020] Figure 2 for Figure 1 Cross-sectional view after removing some structures;

[0021] Figure 3 for Figure 2 A top sectional view of the transmission unit;

[0022] Figure 4 is a cross-sectional view of the middle part of the vertical axis;

[0023] Figure 5 for Figure 2 Enlarged view of point A in the middle;

[0024] Figure 6 for Figure 2 Top view of the middle limit unit.

[0025] The symbols in the figure mean the following:

[0026] 1. Base; 11. Housing; 1101. Slideway; 1102. Accommodation hole; 12. Connecting plate; 121. U-shaped plate; 1210. Through hole; 122. Horizontal plate; 13. Lead screw; 131. Connecting bearing; 14. Nut;

[0027] 2. Placement rack; 21. Placement plate; 22. Vertical axis; 2201. Vertical groove; 2202. Spiral groove; 23. Connecting arm; 231. Limiting ring;

[0028] 3. a first elastic member;

[0029] 4. Clamping assembly; 41. Clamping member; 411. Clamping plate; 412. Limiting plate; 42. Transmission unit; 421. Rotating shaft; 4211. First horizontal section; 4212. First vertical section; 4213. Second horizontal section; 4214. Second vertical section; 4210. Rotating bearing; 422. Spring; 423. Gear ring; 424. Rack; 43. Limiting unit; 431. One-way bearing; 432. Locking ring component; 4321. Gear ring; 4322. Arc bar; 4323. Connecting rod; 4324. Second elastic member; 4325. Limiting block; 44. Telescopic rod; 45. Sliding rod; 46. Limiting protrusion; 47. Third elastic member. DETAILED DESCRIPTION

[0030] In order to make the objectives, technical solutions and advantages of the present disclosure more clear, the embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

[0031] An embodiment of the present disclosure provides a vibration reduction device, which may also be referred to as a vibration reduction base, for placement in an environment with severe vibrations, such as on a ship deck, so that the equipment to be installed can reduce the impact of wind and waves in the ocean.

[0032] like Figure 1 As shown, the vibration reduction device includes a base 1, a placement frame 2, a first elastic member 3, and a clamping assembly 4. The placement frame 2 is located on the top side of the base 1 and is slidably connected to the base 1. The first elastic member 3 is arranged in the base 1, and its two ends are respectively connected to the bottom of the placement frame 2 and the base 1. The expansion and contraction direction of the first elastic member 3 is the same as the movement direction of the placement frame 2, and is the direction from the base 1 to the placement frame 2.

[0033] The clamping assembly 4 includes two clamping members 41 and a transmission unit 42. The two clamping members 41 are located on opposite sides of the placement rack 2, and each clamping member 41 is slidably connected to the base 1. The movement direction of the clamping member 41 relative to the base 1 is perpendicular to the extension and contraction direction of the first elastic member 3. The transmission unit 42 is located in the base 1 and between the two clamping members 41. The transmission unit 42 is connected to the two clamping members 41 and the placement rack 2 respectively. The transmission unit 42 is configured to drive the two clamping members 41 to move toward each other during the movement of the placement rack 2.

[0034] When the vibration reduction device provided by the embodiment of the present disclosure is used, the parts can be placed on the placement rack 2. Since the placement rack 2 and the base 1 are connected by the first elastic member 3, and the expansion and contraction direction of the first elastic member 3 is the same as the moving direction of the placement rack 2 (that is, the vertical direction, Figure 1 In this way, the first elastic member 3 can be used to reduce vibration of the parts on the placement rack 2 in the vertical direction.

[0035] Moreover, since the vibration damping device further includes a clamping assembly 4, and the clamping assembly 4 includes two clamping members 41 and a transmission unit 42, the parts placed on the placement rack 2 can be clamped by the two clamping members 41, so that the parts can be moved in the horizontal direction (i.e. Figure 1 Furthermore, since the transmission unit 42 is connected to the two clamping members 41 and the placement rack 2, respectively, the transmission unit 42 is configured to drive the two clamping members 41 to move toward each other during the movement of the placement rack 2. Therefore, when the placement rack 2 moves due to vibration, the two clamping members 41 can move toward each other under the drive of the transmission unit 42, thereby clamping the parts and preventing the parts from shifting laterally due to vibration, thereby facilitating part processing.

[0036] For example, in order to improve the buffering effect, there may be multiple first elastic members 3 , and the multiple first elastic members 3 are arranged in parallel.

[0037] Continue to see Figure 1 In the embodiment of the present disclosure, the base 1 includes a shell 11, a connecting plate 12, a screw 13 and a nut 14. The shell 11 is a rectangular box-type shell. The connecting plate 12 is located inside the shell 11. Two opposite inner walls of the shell 11 respectively have a slide groove 1101. The extension direction of the slide groove 1101 is the extension direction of the first elastic member 3. The opposite sides of the connecting plate 12 are respectively located in the two slide grooves 1101, and the connecting plate 12 slides with the inner wall of the shell 11. The first elastic member 3 is located in the shell 11 and its two ends are respectively connected to the connecting plate 12 and the inner top of the shell 11.

[0038] Nut 14 is connected to connecting plate 12. One end of screw 13 is threadedly connected to nut 14, and the other end extends out of the top of housing 11. The middle portion of screw 13 is located in housing 11 and is rotatably engaged with housing 11. The length direction of screw 13 is the same as the extension and contraction direction of first elastic member 3.

[0039] When the vibration damping force of the first elastic member 3 needs to be adjusted, the staff can turn the screw 13 to rotate it. After the screw 13 rotates, it drives the nut 14 to move. The movement of the nut 14 can drive the connecting plate 12 fixed to it to move. The movement of the connecting plate 12 drives the first elastic member 3 to deform, thereby achieving the purpose of adjusting the vibration damping force.

[0040] Exemplarily, the nut 14 is embedded in the connecting plate 12 , which can increase the connection strength between the two.

[0041] Optionally, the lead screw 13 is a T-shaped rod structure, and the T-shaped head of the lead screw 13 is located outside the housing 11 and is clamped together with the top of the housing 11. This can prevent the lead screw 13 from being completely moved into the housing 11 and being difficult to operate.

[0042] In the embodiment of the present disclosure, in order to realize the rotational connection between the lead screw 13 and the housing 11, a connecting bearing 131 is embedded in the inner top of the housing 11. The lead screw 13 is inserted into the connecting bearing 131 and connected to the inner ring of the connecting bearing 131.

[0043] Figure 2 for Figure 1 The cross-sectional view after removing part of the structure, combined with Figure 2 To facilitate the arrangement of other components, the connecting plate 12 includes a U-shaped plate 121 and two transverse plates 122. The two transverse plates 122 are located on opposite sides of the U-shaped plate 121 and are respectively connected to two opposite side walls of the U-shaped plate 121. One side of each of the two transverse plates 122 is located in a slide groove 1101 of the housing 11. The nut 14 is embedded in one of the transverse plates 122. The middle portion of the U-shaped plate 121 has a through hole 1210 for the transmission unit 42 to pass through. The multiple first elastic members 3 are all located in the space defined by the U-shaped plate 121.

[0044] Combine Figure 1 and Figure 2 Optionally, the transmission unit 42 includes a rotating shaft 421, a spring 422, a gear ring 423 and two racks 424. One end of the rotating shaft 421 is movably connected to the placement frame 2, and the other end is rotatably connected to the bottom of the base 1.

[0045] Figure 3 for Figure 2 Top view of the transmission unit, combined with Figure 3 The clockwork 422 is located on one side of the rotating shaft 421, and one end is connected to the outer wall of the rotating shaft 421. The gear ring 423 is sleeved on the outside of the clockwork 422 and fixedly connected to the other end of the clockwork 422. When the placement rack 2 moves, the rotating shaft 421 can rotate to tighten the clockwork 422. The two racks 424 are respectively located on opposite sides of the gear ring 423 and correspond one-to-one to the two clamping members 41. One end of each rack 424 is connected to the corresponding clamping member 41, and the other end is engaged with the gear ring 423. Wherein, the rotating shaft 421 is configured to rotate when the placement rack 2 moves, and the clockwork 422 is configured to tighten under the rotation of the rotating shaft 421, and when the clockwork 422 is relaxed, it drives the two racks 424 to move toward each other.

[0046] In the above implementation, after the transmission unit 42 is set to the above structure, when the placement rack 2 moves, the rotating shaft 421 can rotate. After the rotating shaft 421 rotates, the mainspring 422 can be tightened. After the mainspring 422 is tightened, since the mainspring 422 is located in the gear ring 423 and is connected to the gear ring 423, the mainspring 422 will release energy and drive the gear ring 423 to rotate. After the gear ring 423 rotates, it can drive the two racks 424 to move toward each other, thereby driving the two clamping members 41 to move toward each other, so as to clamp the parts located on the placement rack 2. In other words, the rotation of the rotating shaft 421 tightens the mainspring 422, and then when the mainspring 422 releases energy, it drives the two racks 424 to move toward each other, thereby enabling the clamping member 41 to clamp the parts. Moreover, due to vibration, the placement rack 2 will continuously move, thereby continuously driving the rotating shaft 421 to rotate, so when the spring 422 is relaxed, the spring 422 can be tightened again under the rotation of the rotating shaft 421. The above process is repeated continuously, so that the clamping member 41 clamps the parts.

[0047] In this embodiment, the spring 422 is made of a metal steel bar and is wound around the rotating shaft 421. When the rotating shaft 421 rotates along the winding direction of the steel bar, the spring can be tightened.

[0048] For example, one end of the rotating shaft 421 is rotatably connected to the inner bottom surface of the base 1. A rotating bearing 4210 is embedded in the bottom of the housing 11. One end of the rotating shaft 421 is inserted into the inner ring of the rotating bearing 4210, and the outer ring of the rotating bearing 4210 is connected to the housing 11. This ensures a rotatable connection between the rotating shaft 421 and the housing 11.

[0049] Combine Figure 2 Optionally, the placement rack 2 includes a placement plate 21 and a vertical shaft 22. The vertical shaft 22 is located between the placement plate 21 and the base 1. One end of the vertical shaft 22 is connected to the placement plate 21, and the other end is slidably fitted with the top of the base 1. The length direction of the vertical shaft 22 is the same as the moving direction of the placement rack 2.

[0050] The side walls of the vertical shaft 22 have a vertical groove 2201 and a spiral groove 2202 . Along the length direction of the vertical shaft 22 , the top of the spiral groove 2202 is connected to the top of the vertical groove 2201 , and the bottom of the spiral groove 2202 is connected to the bottom of the vertical groove 2201 .

[0051] Figure 4 is a cross-sectional view of the middle of the vertical axis, combined with Figure 4 , the depth of the spiral groove 2202 ( Figure 4 d) along the direction of its own spiral upward ( Figure 4 The direction a) decreases gradually, and the minimum depth of the spiral groove 2202 ( Figure 4d1) is greater than the depth of the vertical groove 2201 ( Figure 4 The vertical groove 2201 extends in the longitudinal direction of the vertical axis 22 , and the end of the rotating shaft 421 away from the base 1 is located in the spiral groove 2202 .

[0052] In the above implementation, the placement rack 2 is set to the above structure, and parts can be placed through the placement plate 21. At the same time, the spiral groove 2202 and the vertical groove 2201 on the vertical shaft 22 cooperate with the rotating shaft 421, and the depth of the spiral groove 2202 gradually decreases along the upward direction of its own spiral. In this way, when the placement rack 2 moves downward, the side wall of the spiral groove 2202 becomes higher, and the rotating shaft 421 will be stuck in the spiral groove 2202 and it will be difficult to achieve lateral movement, so that the rotating shaft 421 can only move in the spiral groove 2202, thereby realizing the rotation of the rotating shaft 421.

[0053] In actual use, when the component causes the placement plate 21 to vibrate vertically, the placement plate 21 moves downward, driving the vertical shaft 22, which in turn drives the spiral groove 2202 downward. Because the depth of the spiral groove 2202 gradually decreases as it spirals upward, the spiral groove 2202 confines the rotating shaft 421 within the spiral groove 2202. The spiral groove 2202 drives the rotating shaft 421 to rotate, gradually rotating the rotating shaft 421 from the bottom of the spiral groove 2202 to the top. Then, when the placement plate 21 moves upward, the placement plate 21 drives the vertical shaft 22 to move, which in turn drives the vertical groove 2201 to slide past the rotating shaft 421, causing the rotating shaft 421 to re-enter the spiral groove 2202. When the placement plate 21 moves downward again, the vertical shaft 22 drives the spiral groove 2202 downward again, causing the rotating shaft 421 to continue rotating. Therefore, the vertical shaft 22 will continuously drive the rotating shaft 421 to rotate through the cooperation of the spiral groove 2202 and the vertical groove 2201 when the placement plate 421 moves up and down, thereby gradually tightening the mainspring 422.

[0054] When the two clamping members 41 are unable to clamp the part in place due to vibration, the tightened mainspring 422 rotates the gear ring 423, which in turn drives the two racks 424 to move toward each other. The two racks 424 then move toward each other, causing the two clamping members 41 to slide toward each other, thereby causing the two clamping members 41 to move toward each other and re-clamp the part. In other words, the mainspring 422 indirectly drives the two clamping members 41 to move toward each other.

[0055] In other words, the maximum travel of the rotating shaft 421 within the spiral groove 2202 allows the rotating shaft 421 to rotate at least one revolution. The rotating shaft 421 rotates as the placement rack 2 moves downward. Simultaneously, the mainspring 422 tightens as the rotating shaft 421 rotates. As the placement rack 2 moves upward, the rotating shaft 421 passes through the vertical groove 2201 again and enters the spiral groove 2202, allowing it to rotate as the placement rack 2 moves downward again. After tightening, the mainspring 422 drives the two racks 424 to move toward each other when it relaxes.

[0056] Figure 5 for Figure 2 The enlarged picture of A in the middle, combined with Figure 5 In this embodiment, the top of the rotating shaft 421 is a hemisphere and matches the spiral groove 2202, so that the top of the rotating shaft 421 can slide in the spiral groove 2202. At the same time, in order to make the rotating shaft 421 able to easily rotate in the spiral groove 2202, the rotating shaft 421 includes a first horizontal section 4211, a first vertical section 4212, a second horizontal section 4213 and a second vertical section 4214 connected in sequence. The hemisphere is located at the end of the first horizontal section 4211 away from the first vertical section 4212. The axial direction of the first vertical section 4212 and the second vertical section 4214 is the moving direction of the placement plate 21. One end of the second vertical section 4214 is connected to the rotating bearing 4210 and is coaxial with the vertical shaft 22. In this way, the rotating shaft 421 can repeatedly rotate around the vertical shaft 22 when the vertical shaft 22 moves up and down.

[0057] Optionally, the placement rack 2 further includes a plurality of connecting arms 23 corresponding one-to-one with the plurality of first elastic members 3. Each connecting arm 23 slidably engages with the top of the housing 11. The top end of the connecting arm 23 is connected to the placement plate 21, and the bottom end of the connecting arm 23 is connected to the corresponding first elastic member 3. To limit the position of the connecting arm 23, a limiting ring 231 is also provided on the connecting arm 23. The limiting ring 231 is connected to the outer wall of the connecting arm 23 and is located within the housing 11, configured to engage with the inner top of the housing 11.

[0058] Combine Figure 2 and Figure 3 Optionally, the rack 424 is an L-shaped structure, the vertical section of the rack 424 is connected to the corresponding clamping member 41, and the horizontal section of the rack 424 is engaged with the gear ring 423. This facilitates the arrangement of the rack 424.

[0059] In this embodiment, in order to achieve sliding fit between the clamping members 41 and the housing 11 , a top portion of the housing 11 is provided with receiving holes 1102 arranged in a one-to-one correspondence with the two clamping members 41 .

[0060] Combine Figure 2, each clamping member 41 includes a splint 411 and two limiting plates 412. The splint 411 is located in the corresponding receiving hole 1102. The two limiting plates 412 are spaced apart along the length direction of the vertical axis 22 and are respectively connected to the splint 411. The two limiting plates 412 are respectively fitted with the outer top surface and the inner top surface of the outer shell 11. In this way, the splint 411 can be limited by the limiting plates 412, so that the splint 411 can only slide horizontally in the receiving hole 1102 but cannot move vertically. In order to facilitate the clamping of parts, the splint 411 is a rectangular plate. The splint 411 is perpendicular to its own moving direction.

[0061] Optionally, the clamping assembly 4 further includes a limiting unit 43, which is located in the base 1 and is sleeved outside the gear ring 423. The limiting unit 43 is configured to limit the unidirectional rotation of the gear ring 423, and when the gear ring 423 rotates, the two racks 424 move toward each other.

[0062] In the above implementation, the limiting unit 43 is used to limit the one-way rotation of the gear ring 423, so that the gear ring 423 can only rotate after the mainspring 422 is released or in the released state, and will not rotate in the opposite direction.

[0063] Combine Figure 2 and Figure 5 Optionally, the limiting unit 43 includes a one-way bearing 431 and a locking ring component 432. The inner ring of the one-way bearing 431 is sleeved outside the bottom of the gear ring 423 and connected to the gear ring 423. The locking ring component 432 is connected to the base 1 and sleeved outside the outer ring of the one-way bearing 431. The locking ring component 432 is connected to the outer ring of the one-way bearing 431 to limit the outer ring of the one-way bearing 431 from rotating.

[0064] In the above implementation, the locking ring 432 is used to restrain the outer ring of the one-way bearing 431, preventing it from rotating. Once the outer ring of the one-way bearing 431 is immobilized, the inner ring of the one-way bearing 431 can only rotate in one direction. Because the inner ring of the one-way bearing 431 is connected to the gear ring 423, the inner ring of the one-way bearing 431 can only rotate in one direction, which in turn means that the gear ring 423 can only rotate in one direction.

[0065] Figure 6 for Figure 2 Top view of the middle limit unit, combined with Figure 6 Optionally, the locking ring component 432 includes a ring gear 4321, a curved bar 4322, and a connecting rod 4323. The ring gear 4321 is sleeved outside the one-way bearing 431 and connected to the outer ring of the one-way bearing 431. The curved bar 4322 is located outside the ring gear 4321 and meshes with the ring gear 4321 via square teeth. One end of the connecting rod 4323 is connected to the curved bar 4322, and the other end is connected to the base 1.

[0066] In the above implementation, because the arcuate bar 4322 is located outside the ring gear 4321 and meshes with the ring gear 4321 via square teeth, no transmission is achieved between the arcuate bar 4322 and the ring gear 4321, but rather they are locked together. In other words, the specific square teeth meshing between the arcuate bar 4322 and the ring gear 4321 restricts the rotation of the ring gear 4321, thereby restricting the rotation of the outer ring of the one-way bearing 431.

[0067] For example, the outer periphery of the gear ring 4321 is provided with a plurality of evenly distributed square teeth, each with a square cross-section. One side of the arcuate bar 4322 is also provided with square teeth with a square cross-section. In this way, the arcuate bar 4322 can mesh with the gear ring 4321 through the square teeth, preventing the two from transmitting.

[0068] Optionally, the locking ring component 432 further includes a second elastic member 4324 . The second elastic member 4324 is sleeved outside the connecting rod 4323 and has two ends respectively abutting against the arc strip 4322 and the inner wall of the base 1 .

[0069] In the above implementation, the second elastic member 4324 can adjust the contact between the arcuate strip 4322 and the ring gear 4321. The elasticity of the second elastic member 4324 ensures good contact between the arcuate strip 4322 and the ring gear 4321. It can also release the meshing of the arcuate strip 4322 with the ring gear 4321, thereby releasing the one-way rotation restriction on the ring gear 423.

[0070] For example, after the parts are processed, when the parts need to be removed, the staff pulls the connecting rod 4323 to move, and the connecting rod 4323 drives the arc bar 4322 to move to remove the limit on the ring gear 4321, so that the ring gear 4321 can rotate. The rotation of the ring gear 4321 allows the outer ring of the one-way bearing 431 to rotate.

[0071] Then, one of the clamping members 41 is moved away from the other clamping member 41. The clamping member 41 drives the rack 424 fixed to it to move away from the other rack 424. The rack 424 drives the gear ring 423 to rotate. The rotation direction of the gear ring 423 is opposite to the original rotation direction of the inner ring of the one-way bearing 431. The gear ring 423 drives the other rack 424 to move, thereby causing the two racks 424 to move away from each other, achieving the separation of the two clamping members 41, revoking the clamping and positioning of the part by the two clamping members 41, and then the part is removed. Then, the connecting rod 4323 is released. At this time, the second elastic member 4324 pushes the arcuate bar 4322 to move, causing the arcuate bar 4322 to engage with the gear ring 4321 again and limit it. This prevents the gear ring 4321 and the outer ring of the one-way bearing 431 from rotating, thereby limiting the one-way rotation of the gear ring 423.

[0072] Combine Figure 2 Optionally, the locking ring component 432 further includes a plurality of limit blocks 4325, which are spaced apart along the circumference of the ring gear 4321 and located in the base 1. Each limit block 4325 is connected to the outer ring of the one-way bearing 431. Each limit block 4325 is engaged with the base 1 along the moving direction of the placement rack 2.

[0073] In the above implementation, the provision of the plurality of limit blocks 4325 can limit the axial movement of the one-way bearing 431 , so that the one-way bearing 431 will not separate from the base 1 .

[0074] Exemplarily, the stop block 4325 is a dovetail block. The bottom of the housing 11 has an annular groove for accommodating the stop block 4325. The cross section of the annular groove is a dovetail shape that matches the stop block 4325.

[0075] Optionally, the clamping assembly 4 further includes a telescopic rod 44 and a slide rod 45. The telescopic rod 44 and the slide rod 45 are coaxially arranged and both are located in the base 1 and on the same side of the two clamping members 41. One end of the telescopic rod 44 is connected to the side wall of the base 1, and the other end is connected to one end of the slide rod 45. The length direction of the telescopic rod 44 is the same as the arrangement direction of the two clamping members 41, and the telescopic rod 44 can be extended and retracted along its own length. The other end of the slide rod 45 is connected to one of the clamping members 41, and when the telescopic rod 44 is extended or retracted, it can drive the clamping member 41 to move toward or away from the other clamping member 41.

[0076] In the above implementation, the telescopic rod 44 can push the slide rod 45 to move after it is extended and retracted, and the slide rod 45 can drive one of the clamping parts 41 to move after it moves, so that the two clamping parts 41 can approach each other to pre-clamp the parts or move away from each other to cancel the limit on the parts.

[0077] In this embodiment, a limiting protrusion 46 is provided on the slide rod 45. The limiting protrusion 46 is located on the same side of the two clamping members 41 and is connected to the slide rod 45. The limiting protrusion 46 is used to fit with the clamping member 41 through which the slide rod 45 passes, so that the slide rod 45 can drive one of the clamping members 41 to move.

[0078] During use, the part to be processed can be placed on the top surface of the placement plate 21, and then the telescopic rod 44 is operated. After the telescopic rod 44 is extended, the slide bar 45 drives one of the clamping members 41 to move, which in turn drives the rack 424 fixed thereto to move. The rack 424 drives the gear ring 423 to rotate, which drives the other rack 424 to move, and the other rack 424 drives the clamping member 41 fixed thereto to move. As a result, the two clamping members 41 move toward each other to clamp the part horizontally, so that the part can only move in the vertical direction, and then the part can be processed. At the same time, the gear ring 423 is restricted to one-way rotation, so that the clamping member 41 always clamps the part.

[0079] In light of the above, when vertical vibration occurs during part processing, the part drives the placement plate 21 to move, squeezing the first elastic member 3 and causing it to deform, thereby achieving vibration reduction. The placement plate 21 repeatedly moves downward, driving the transmission unit 42, gradually tightening the mainspring 422 within the transmission unit 42. If the vibration causes the two clamping members 41 to loosen and become unable to clamp the part, the tightened mainspring 422 rotates the gear ring 423. This rotation of the gear ring 423 moves the two racks 424, which in turn move the two clamping members 41 toward each other, re-clamping the part. This effectively prevents lateral movement of the part and facilitates part processing.

[0080] Optionally, the clamping assembly 4 also includes a third elastic member 47, which is located between the two clamping members 41 and is sleeved outside the sliding rod 45. The two ends of the third elastic member 47 are respectively against the clamping member 41 and the end of the sliding rod 45 and the clamping member 41 connected to the sliding rod 45.

[0081] In the above implementation, the setting of the third elastic member 47 can flexibly adjust whether the limiting protrusion 46 on the slide rod 45 is fitted together with the clamping member 41, and under the elastic force of the third elastic member 47, the clamping member 41 can move with the slide rod 45 when the telescopic rod 44 is retracted.

[0082] In this embodiment, the first elastic member 3, the second elastic member 4324, and the third elastic member 47 are all telescopic springs, and are initially compressed. The elastic force of the spring 422 is significantly greater than that of the third elastic member 47. This allows the spring 422 to relax and indirectly push the third elastic member 47 to deform, thereby allowing the limiting protrusion 46 to fit closely with the clamping member 41.

[0083] The following briefly describes the working process of the vibration reduction device provided by the embodiment of the present disclosure:

[0084] First, place the part to be processed on the top surface of the placement plate 21, and then operate the telescopic rod 44 to start working to extend it. Under the action of the sliding rod 45, the telescopic rod 44 drives one of the clamping parts 41 to move close to the vertical axis 22, and the clamping part 41 drives the rack 424 fixed to it to move, and the rack 424 drives the gear ring 423 to rotate, and the gear ring 423 drives the other rack 424 to move, and the other rack 424 drives the clamping part 41 fixed to it to move, thereby realizing the two clamping parts 41 moving toward each other and clamping the part horizontally, so that the part can only move in the vertical direction, and then the part is processed.

[0085] Next, if the part vibrates vertically during machining, the part drives the placement plate 21 to move, squeezing the first elastic member 3 and causing it to deform, thereby reducing vibration. The placement plate 21 repeatedly moves downward, driving the transmission unit 42, gradually tightening the mainspring 422 within the transmission unit 42. If the two clamping members 41 become loose due to vibration and are unable to clamp the part, the tightened mainspring 422 rotates the gear ring 423. This rotation drives the two racks 424 to move, which in turn drives the two clamping members 41 toward each other, re-clamping the part. This effectively prevents lateral movement of the part and facilitates machining.

[0086] During machining, the second elastic member 4324, under its own elastic force, pushes the curved bar 4322 into engagement with the ring gear 4321, preventing the ring gear 4321 from rotating. When the ring gear 4321 is unable to rotate, the outer ring of the one-way bearing 431 cannot rotate, and the ring gear 423 can only rotate unidirectionally driven by the mainspring 422. When the part is finished and needs to be removed, the operator pulls the connecting rod 4323, which moves the curved bar 4322, removing the position restriction on the ring gear 4321 and allowing the ring gear 4321 to rotate. The rotation of the ring gear 4321 allows the outer ring of the one-way bearing 431 to rotate as well.

[0087] Then the telescopic rod 44 is controlled to retract, and the output end of the telescopic rod 44 drives the sliding rod 45 to move away from the vertical axis 22. The sliding rod 45 drives the clamping member 41 in contact with it to move to the left through the third elastic member 47. The clamping member 41 drives the rack 424 fixed thereto to move away from the other rack 424. The rack 424 drives the gear ring 423 to rotate. The rotation direction of the gear ring 423 is opposite to the original rotation direction of the inner ring of the one-way bearing 431. The gear ring 423 drives the other rack 424 to move, so that the two racks 424 move away from each other, realizing the mutual departure of the two clamping members 41, canceling the clamping and positioning of the parts by the two clamping members 41, and then taking out the parts. Then release the connecting rod 4323. At this time, the second elastic member 4324 pushes the arc strip 4322 to move, so that the arc strip 4322 engages with the gear ring 4321 again to limit it. The gear ring 4321 and the outer ring of the one-way bearing 431 cannot rotate, thereby limiting the one-way rotation of the gear ring 423.

[0088] The vibration reduction device provided in this embodiment is configured by fixing the vertical shaft 22 on the placement plate 21 so that the vertical shaft 22 cooperates with the transmission unit 42. When the placement plate 21 vibrates longitudinally, the placement plate 21 tightens the mainspring 422 through the transmission unit 42. The tightened mainspring 422 has a tendency to drive the gear ring 423 to rotate. When the clamping member 41 becomes loose due to vibration and cannot clamp the part, the mainspring 422 drives the two racks 424 to move through the gear ring 423. The two racks 424 drive the two clamping members 41 to move toward each other and clamp the part again, thereby preventing the part from moving laterally and facilitating the processing of the part.

[0089] The above description is merely an optional embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present disclosure shall be included in the scope of protection of the present disclosure.

Claims

1. A vibration damping device, characterized in that: The vibration reduction device comprises a base (1), a placement frame (2), a first elastic member (3) and a clamping assembly (4). The placement rack (2) is located on the top of the base (1) and is slidably connected to the base (1); the first elastic member (3) is arranged in the base (1), and its two ends are respectively connected to the bottom of the placement rack (2) and the base (1); the extension direction of the first elastic member (3) is the same as the moving direction of the placement rack (2), and is the direction from the base (1) to the placement rack (2); The clamping assembly (4) includes two clamping members (41) and a transmission unit (42), the two clamping members (41) are respectively located on opposite sides of the placement rack (2), and each of the clamping members (41) is slidably connected to the base (1), and the moving direction of the clamping member (41) relative to the base (1) is perpendicular to the extension and contraction direction of the first elastic member (3); The transmission unit (42) is located in the base (1) and between the two clamping members (41). The transmission unit (42) is connected to the two clamping members (41) and the placement rack (2) respectively. The transmission unit (42) is configured to drive the two clamping members (41) to move toward each other during the movement of the placement rack (2).

2. The vibration damping device according to claim 1, characterized in that: The transmission unit (42) includes a rotating shaft (421), a spring (422), a gear ring (423) and two racks (424); One end of the rotating shaft (421) is movably connected to the placement frame (2) and the other end is rotatably connected to the bottom of the base (1); the clockwork spring (422) is located on one side of the rotating shaft (421) and one end is connected to the outer wall of the rotating shaft (421); the gear ring (423) is sleeved outside the clockwork spring (422) and is connected to the other end of the clockwork spring (422); The two racks (424) correspond to the two clamping members (41) one by one and are respectively located outside the opposite sides of the gear ring (423). One end of each rack (424) is connected to the corresponding clamping member (41), and the other end is connected to the gear ring (423). The length direction of the rack (424) is perpendicular to the extension and contraction direction of the first elastic member (3). The rotating shaft (421) is configured to rotate when the placement rack (2) moves, and the spring (422) is configured to be tightened under the rotation of the rotating shaft (421), and the spring (422) drives the two racks (424) to move toward each other when it is relaxed.

3. The vibration damping device according to claim 2, characterized in that: The placement rack (2) comprises a placement plate (21) and a vertical shaft (22), wherein the vertical shaft (22) is located between the placement plate (21) and the base (1), one end of the vertical shaft (22) is connected to the placement plate (21), and the other end is slidably engaged with the top of the base (1), and the length direction of the vertical shaft (22) is the same as the moving direction of the placement rack (2); The side walls of the vertical shaft (22) are respectively provided with a spiral groove (2202) and a vertical groove (2201); the top end of the spiral groove (2202) is connected to the top end of the vertical groove (2201); the bottom end of the spiral groove (2202) is connected to the bottom end of the vertical groove (2201); the depth of the spiral groove (2202) gradually decreases along its own spiral upward direction, and the minimum value is greater than the depth of the vertical groove (2201); the extension direction of the vertical groove (2201) is the length direction of the vertical shaft (22); and the end of the rotating shaft (421) away from the base (1) is located in the spiral groove (2202).

4. The vibration damping device according to claim 2, characterized in that: The clamping assembly (4) further includes a limiting unit (43), and the limiting unit (43) includes a one-way bearing (431) and a locking ring component (432); The inner ring of the one-way bearing (431) is sleeved outside the bottom of the gear ring (423) and is connected to the gear ring (423); the locking ring component (432) is connected to the base (1) and sleeved outside the outer ring of the one-way bearing (431); the locking ring component (432) is connected to the outer ring of the one-way bearing (431) to limit the rotation of the outer ring of the one-way bearing (431).

5. The vibration damping device according to claim 4, characterized in that: The locking ring component (432) includes a gear ring (4321), an arc-shaped bar (4322) and a connecting rod (4323); The gear ring (4321) is sleeved outside the one-way bearing (431) and is connected to the outer ring of the one-way bearing (431); the arc-shaped bar (4322) is located outside the gear ring (4321) and is meshed with the gear ring (4321) through square teeth; One end of the connecting rod (4323) is connected to the arc-shaped bar (4322), and the other end is connected to the base (1).

6. The vibration damping device according to claim 5, characterized in that: The locking ring component (432) further includes a second elastic member (4324), which is sleeved outside the connecting rod (4323) and has two ends respectively abutting against the inner wall of the arc strip (4322) and the base (1).

7. The vibration damping device according to claim 5, characterized in that: The locking ring component (432) further includes a plurality of limit blocks (4325), which are located in the base (1) at intervals along the circumference of the gear ring (4321), and each of the limit blocks (4325) is connected to the outer ring of the one-way bearing (431), and the limit blocks (4325) are clamped together with the base (1) along the moving direction of the placement rack (2).

8. The vibration damping device according to claim 2, characterized in that: The clamping assembly (4) further comprises a telescopic rod (44) and a sliding rod (45), wherein the telescopic rod (44) and the sliding rod (45) are coaxially arranged and both are located in the base (1), one end of the telescopic rod (44) is connected to the side wall of the base (1), and the other end is connected to one end of the sliding rod (45), the length direction of the telescopic rod (44) is the same as the arrangement direction of the two clamping members (41), and the telescopic rod (44) can be extended and retracted along its own length direction; The other end of the sliding rod (45) is connected to one of the two clamping members (41), and can drive the connected clamping member (41) to move toward or away from the other clamping member (41) when the telescopic rod (44) is extended or retracted.

9. The vibration damping device according to claim 8, characterized in that: The clamping assembly (4) further includes a third elastic member (47), which is located between the two clamping members (41) and is sleeved outside the sliding rod (45), and the two ends of the third elastic member (47) respectively abut against the end of the sliding rod (45) and the clamping member (41) connected to the sliding rod (45).

10. The vibration damping device according to any one of claims 1 to 9, characterized in that: The base (1) comprises a housing (11), a connecting plate (12), a lead screw (13) and a nut (14); two opposite inner walls of the housing (11) respectively have a slide groove (1101); the extension direction of the slide groove (1101) is the extension direction of the first elastic member (3); The connecting plate (12) is located in the housing (11) and is located in two of the two slide grooves (1101) on opposite sides. The connecting plate (12) is slidably matched with the groove wall of the slide groove (1101). The first elastic member (3) is located in the housing (11) and its two ends are connected to the connecting plate (12) and the top of the housing (11) respectively. The nut (14) is connected to the connecting plate (12), one end of the lead screw (13) is connected to the nut, and the other end is located outside the housing (11), the middle part of the lead screw (13) is located inside the housing (11) and is rotatably engaged with the housing (11), and the length direction of the lead screw (13) is the same as the telescopic direction of the first elastic member (3).

Images