Buffering and damping device of machining table

Abstract

The utility model relates to the field of machining, and discloses a buffering and damping device of a machining table, which comprises a damping bracket and a base, and the damping bracket is inserted into the base; a damping assembly is arranged on the damping support and used for damping the workbench. The damping assembly comprises a fixing plate detachably installed at the top of the damping support, four supporting columns are detachably installed at the bottom of the fixing plate, the supporting columns are symmetrically arranged, first damping parts are arranged on the supporting columns, each first damping part comprises a first rubber ring arranged on the corresponding supporting column in a sleeving mode, and permanent magnets are fixedly installed on the supporting columns; the permanent magnet is located below the first rubber ring, the supporting column is sleeved with a second rubber ring which is the same as the first rubber ring in size, the second rubber ring is located below the permanent magnet, a fixing piece is detachably installed at the bottom of the supporting column, and a second damping piece is arranged at the bottom of the fixing piece. By means of the damping assembly, the problem that the damping effect becomes poor when the instant impact force borne by the machining table is too large is solved.

Description

Technical Field

[0001] This utility model relates to the field of machining, specifically to a buffer and shock absorption device for a machining table. Background Technology

[0002] A buffer and shock absorption device for a machining table is a device installed on the machining table to reduce the impact and vibration generated during the machining process, protect the machining equipment, improve machining accuracy, and extend the service life of the machining table and related equipment.

[0003] Working principle:

[0004] Spring damping: When the processing table is subjected to impact or vibration, the spring of the spring damper first undergoes elastic deformation, converting part of the impact energy into the elastic potential energy of the spring. At the same time, the damper starts to work, consuming the energy of the spring vibration through friction and fluid resistance, causing the spring vibration to gradually decay.

[0005] Eddy current damping: When a permanent magnet moves in a magnetic field, it cuts magnetic field lines and generates eddy currents. According to Lenz's law, the direction of the eddy currents will generate a magnetic field opposite to the original magnetic field, which will generate a damping force that opposes the movement of the conductor, thereby converting mechanical vibration energy into heat energy to achieve the effect of buffering and shock absorption.

[0006] Noise reduction with vibration damping plates: Vibration damping plates are mainly composed of butyl rubber, sound-absorbing cotton, and aluminum plates. Butyl rubber has high density and high viscosity, which can effectively absorb and disperse vibration energy, converting it into heat energy and dissipating it, thereby reducing the amplitude of vibration. The aluminum plate plays a role in constraint and damping. By reducing the curvature of the butyl rubber damping layer, the vibration damping effect is further improved. The sound-absorbing cotton, through its specially arranged pores, causes sound to rub against the material pore walls, converting sound energy into heat energy, thus achieving the effect of noise reduction.

[0007] The existing cushioning and shock absorption devices for machining tables have the following drawbacks: common machining table cushioning and shock absorption devices usually have limited load adaptability. Their cushioning and shock absorption devices are designed for specific load ranges. When the instantaneous impact force on the machining table is too large, its shock absorption effect will deteriorate. Utility Model Content

[0008] The purpose of this invention is to provide a buffer and shock absorption device for a processing table to solve the problem of poor shock absorption effect when the instantaneous impact force on the processing table is too large, as described in the background art.

[0009] To achieve the above objectives, this utility model provides the following technical solution: a buffer and shock absorption device for a processing table, comprising a shock absorption bracket and a base, wherein the shock absorption bracket is inserted into the base;

[0010] The shock-absorbing bracket is equipped with shock-absorbing components to dampen the vibration of the workbench;

[0011] The shock-absorbing bracket is equipped with noise reduction components to reduce noise on the workbench;

[0012] The shock absorption assembly includes a fixing plate that can be detachably installed on the top of the shock absorption bracket. A support column is detachably installed on the bottom of the fixing plate, and four support columns are symmetrically arranged. A first shock absorber is installed on the support column. The first shock absorber includes a first rubber ring sleeved on the support column. A permanent magnet is fixedly installed on the support column and is located below the first rubber ring. A second rubber ring of the same size as the first rubber ring is sleeved on the support column and is located below the permanent magnet. A fixing plate is detachably installed at the bottom of the support column, and a second shock absorber is installed at the bottom of the fixing plate.

[0013] Preferably, the noise reduction component includes a noise reduction plate detachably mounted on the bottom of the fixed plate, the noise reduction plate being inserted into the top of the base, the top of the noise reduction plate being provided with butyl rubber, the bottom of the butyl rubber being provided with sound-absorbing cotton, the bottom of the sound-absorbing cotton being provided with an aluminum plate, a first baffle being fixedly mounted on the side of the base, a second baffle being slidably connected to the front of the base, a sliding groove being provided on the side of the base, a second limiting hole being provided on the sliding groove, a limiting pin being inserted into the second limiting hole, a first limiting hole being provided on the side of the second baffle to cooperate with the limiting pin, a number of sets of first limiting holes being provided, and the first limiting holes being arranged in a linear array from top to bottom, and a sound-absorbing plate being detachably mounted inside the first baffle and the second baffle.

[0014] Preferably, the second damping component includes a spring fixedly installed at the bottom of the fixed plate, a washer detachably installed at the bottom of the spring, a hydraulic damper detachably installed at the bottom of the fixed plate, and the hydraulic damper is located inside the spring. The hydraulic damper is filled with hydraulic oil, and a piston is slidably connected to the hydraulic damper in a sealed manner. The piston has convection holes, and four convection holes are symmetrically arranged. A push rod is fixedly connected to the bottom of the piston, and the push rod is slidably connected to the bottom of the hydraulic damper in a sealed manner. The bottom of the push rod is fixedly connected to the washer.

[0015] Preferably, a shock-absorbing box is fixedly installed at the top inside the base, and four shock-absorbing boxes are symmetrically arranged. A fixing groove for inserting pads is opened at the bottom inside the base.

[0016] Preferably, the shock absorber box has a first through hole that mates with the first rubber ring, and a groove is provided inside the shock absorber box, with the groove located at the bottom of the first through hole. A closed coil is detachably installed in the groove. The shock absorber box also has a second through hole that mates with the second rubber ring, with the second through hole located at the bottom of the groove.

[0017] Preferably, the fixed plate has mounting holes for installing the workbench, and the noise reduction plate is fitted with a third rubber ring, which is located between the fixed plate and the base.

[0018] Preferably, the permanent magnet is inserted into the closed coil.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. In this utility model, when the processing table is working, the impact force is transmitted from the processing table to the fixed plate. The rubber ring between the fixed plate and the base will absorb the shock. When the fixed plate is subjected to the impact force, it compresses the rubber ring and moves downward. The support column compresses the spring, converting kinetic energy into elastic potential energy to achieve a buffering effect. The hydraulic damper inside the spring is used to control the spring's extension and retraction speed. When the spring is extending and retracting, the hydraulic oil flows at a certain speed under the restriction of the convection hole, thereby controlling the piston's movement speed to achieve a shock absorption effect. When the instantaneous impact force is too large, the hydraulic damper's ability to control the piston's movement speed is limited. At this time, the permanent magnet on the support column moves faster relative to the closed coil, generating an induced current and producing a damping force on the permanent magnet in the opposite direction of its movement, further restricting the movement of the support column. Through the shock absorption component, the problem that the shock absorption effect will deteriorate when the instantaneous impact force on the processing table is too large is solved.

[0021] 2. In this utility model, during the operation of the processing table, the processing table drives the fixed plate to undergo high-frequency micro-vibration. The butyl rubber, which is detachably installed at the bottom of the fixed plate, has high density and high viscosity, and can effectively absorb and disperse vibration energy, converting it into heat energy and dissipating it, thereby reducing the amplitude of vibration. The aluminum plate plays a role in constraint and damping. By reducing the curvature of the butyl rubber damping layer, the vibration damping effect is further improved. The sound-absorbing cotton, through its specially arranged holes, causes sound to rub against the material hole walls, converting sound energy into heat energy, thus achieving a noise reduction effect. The adjustable baffle can prevent material residue from flying out without affecting the processing process. The sound-absorbing plate installed on the baffle can reduce noise. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a buffer and shock absorption device for a processing table proposed in this utility model.

[0023] Figure 2 This is a schematic diagram of the shock-absorbing support structure of a buffer and shock-absorbing device for a processing table proposed in this utility model.

[0024] Figure 3 This is a schematic diagram of the base structure of a buffer and shock absorption device for a processing table proposed in this utility model;

[0025] Figure 4 This is a schematic diagram of the shock-absorbing box structure of a buffer and shock-absorbing device for a processing table proposed in this utility model;

[0026] Figure 5 This is a schematic diagram of the hydraulic damper structure of a buffer and shock absorption device for a processing table proposed in this utility model.

[0027] Figure 6This is a schematic diagram of the noise reduction plate structure of a buffer and shock absorption device for a processing table proposed in this utility model.

[0028] In the diagram: 1. Vibration damping bracket; 11. Fixing plate; 12. Mounting hole; 13. Support column; 14. Fixing plate; 15. Third rubber ring; 2. Base; 21. Vibration damping box; 22. Fixing groove; 23. First through hole; 24. Groove; 25. Closed coil; 26. Second through hole; 3. Vibration damping assembly; 4. Noise reduction component; 41. Noise reduction plate; 42. Butyl rubber; 43. Sound-absorbing cotton; 44. Aluminum plate; 45. 46. ​​First baffle; 47. Second baffle; 48. First limiting hole; 49. Sound-absorbing plate; 40. Limiting pin; 410. Second limiting hole; 411. Slide groove; 5. First shock absorber; 51. First rubber ring; 52. Permanent magnet; 53. Second rubber ring; 6. Second shock absorber; 61. Spring; 62. Hydraulic damper; 63. Hydraulic oil; 64. Piston; 65. Convection hole; 66. Push rod; 67. Gasket. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1

[0031] Please see Figure 1 - Figure 6 The diagram shows a buffer and shock absorption device for a processing table, including a shock absorption bracket 1 and a base 2. The shock absorption bracket 1 is inserted into the base 2. A shock absorption box 21 is fixedly installed on the top of the base 2. Four shock absorption boxes 21 are symmetrically arranged. The shock absorption box 21 is used for shock absorption. A through hole 23 is opened on the shock absorption box 21. A groove 24 is opened in the middle of the through hole 23. A closed coil 25 is detachably installed in the groove 24. A fixing groove 22 for inserting a pad 67 is opened at the bottom of the base 2.

[0032] The shock-absorbing bracket 1 is equipped with a shock-absorbing component 3, which is used to dampen the workbench.

[0033] The vibration damping assembly 3 includes a fixed plate 11 detachably mounted on the top of the vibration damping bracket 1; a mounting plate 11 for supporting the workbench, with mounting holes 12 for mounting the workbench; and a support column 13 detachably mounted on the bottom of the fixed plate 11, with four support columns 13 symmetrically arranged; the support column 13 supports the fixed plate 11, and a first vibration damping element 5 is provided on the support column 13, the first vibration damping element 5 including a first rubber ring 51 sleeved on the support column 13; a permanent magnet 52 is fixedly mounted on the support column 13 for vibration damping and fixing the support column 13, with the permanent magnet 52 located below the first rubber ring 51, and a second rubber ring 53 of the same size as the first rubber ring 51 sleeved on the support column 13, with the second rubber ring 53 located below the permanent magnet 52; for vibration damping and fixing the support column 13.

[0034] The shock absorber box 21 has a first through hole 23 that mates with the first rubber ring 51; the first rubber ring 51 is inserted into the through hole 23. The shock absorber box 21 has a groove 24 located at the bottom of the first through hole 23. A closed coil 25 is detachably installed in the groove 24. A permanent magnet 52 is inserted into the closed coil 25. When the permanent magnet 52 moves relative to the closed coil 25, it generates resistance in the opposite direction of movement to achieve shock absorption. The groove 24 and the permanent magnet 52 provide a limit. The shock absorber box 21 has a second through hole 26 that mates with the second rubber ring 53, located at the bottom of the groove 24. The second rubber ring 53 is inserted into the second through hole 26. A fixing plate 14 is detachably installed at the bottom of the support column 13. A second shock absorber 6 is provided at the bottom of the fixing plate 14. The second shock absorber 6 includes a spring 61 fixedly installed at the bottom of the fixing plate 14 for buffering the fixing plate 11. The bottom of the spring 61 is detachably installed. A gasket 67 is installed to prevent wear. A hydraulic damper 62 is detachably installed at the bottom of the fixing plate 14, and the hydraulic damper 62 is located inside the spring 61. It is used to dampen the extension and retraction of the spring 61. The hydraulic damper 62 is filled with hydraulic oil 63. A piston 64 is slidably connected inside the hydraulic damper 62. A convection hole 65 is opened on the piston 64. The flow rate of the hydraulic oil 63 is limited by the convection hole 65, which limits the movement speed of the piston 64, and thus limits the movement speed of the fixing plate 14. Four convection holes 65 are symmetrically arranged. A push rod 66 is fixedly connected to the bottom of the piston 64, and the push rod 66 is slidably connected to the bottom of the hydraulic damper 62. The bottom of the push rod 66 is fixedly connected to the gasket 67. When the fixing plate 11 is subjected to an impact force, it moves downward. The base 2 squeezes the push rod 66 through the gasket 67. The push rod 66 pushes the piston 64 to move. At the same time, the gasket 67 squeezes the spring 61 to make it contract.

[0035] The shock-absorbing bracket 1 is equipped with a noise reduction component 4, which is used to reduce the noise of the workbench;

[0036] The noise reduction component 4 includes a noise reduction plate 41 detachably mounted on the bottom of the fixed plate 11. The noise reduction plate 41 is inserted into the top of the base 2. A third rubber ring 15 is fitted on the noise reduction plate 41, and the third rubber ring 15 is located between the fixed plate 11 and the base 2. The third rubber ring 15 is used for shock absorption and buffering. A butyl rubber 42 is provided at the top of the noise reduction plate 41 to absorb and disperse vibration energy. A sound-absorbing cotton 43 is provided at the bottom of the butyl rubber 42. The sound-absorbing cotton 43, through its specially arranged internal holes, causes sound to rub against the material pore walls, converting sound energy into heat energy. An aluminum plate 44 is provided at the bottom of the sound-absorbing cotton 43. The aluminum plate 44 acts as a constraint damping layer, reducing the curvature of the butyl rubber 42 damping layer. To further improve vibration damping, a first baffle 45 is fixedly installed on the side of the base 2 to prevent material debris from flying out. A second baffle 46 is slidably connected to the front of the base 2 to prevent material debris from flying out. A sliding groove 411 is provided on the side of the base 2, and a second limiting hole 410 is provided on the sliding groove 411. A limiting pin 49 is inserted into the second limiting hole 410. A first limiting hole 47 that cooperates with the limiting pin 49 is provided on the side of the second baffle 46. Several sets of first limiting holes 47 are provided, and the first limiting holes 47 are arranged in a linear array from top to bottom to adjust the position of the second baffle 46 and prevent obstruction of processing. A sound-absorbing plate 48 is detachably installed in the first baffle 45 and the second baffle 46 to reduce noise on the worktable.

[0037] Working principle

[0038] During use, the processing equipment is detachably mounted to the fixed plate 11 via the mounting hole 12. When the processing table starts working, the impact force is transmitted to the fixed plate 11, causing the fixed plate 11 to move downwards. The fixed plate 11 and the third rubber ring 15 of the base 2 are compressed, converting kinetic energy into heat energy, providing the first buffer and shock absorption for the fixed plate 11. As the fixed plate 11 continues to move downwards, it pushes the support column 13 to compress the spring 61 and the hydraulic damper 62. When the spring 61 is compressed, the kinetic energy of the fixed plate 11 is converted into the elastic potential energy of the spring 61, playing a buffering role. When the hydraulic damper 62 is compressed, the hydraulic oil 63 inside it moves at a certain speed. The convection hole 65 on the piston 64 provides damping for the extension and retraction of the spring 61, thus reducing vibration. At the same time, the support column 13 drives the permanent magnet 52 to move within the closed coil 25. The closed coil 25 generates an induced current, which applies a damping force to the permanent magnet 52 in the opposite direction of its movement. When the instantaneous impact force of the processing table on the fixed plate 11 is too large, the damping provided by the hydraulic damper 62 to the spring 61 is insufficient, and the movement speed of the support column 13 increases. At this time, the speed of the permanent magnet 52 relative to the closed coil 25 increases, the induced current increases, and the damping force generated also increases, thereby preventing the movement of the support column 13 and the fixed plate 11, thus achieving vibration reduction.

[0039] During the operation of the processing table, the processing table drives the fixed plate 11 to undergo high-frequency micro-vibration. The butyl rubber 42, which is detachably installed at the bottom of the fixed plate 11, has high density and high viscosity, and can effectively absorb and disperse vibration energy, converting it into heat energy and dissipating it, thereby reducing the amplitude of vibration. The aluminum plate 44 plays a role in constraint and damping. By reducing the curvature of the butyl rubber 42 damping layer, the vibration damping effect is further improved. The sound-absorbing cotton 43, through its specially arranged holes, causes sound to rub against the material hole walls, converting sound energy into heat energy, thereby achieving the effect of noise reduction. The sound-absorbing plates 48 on the inner sides of the first baffle 45 and the second baffle 46 absorb part of the volume and reduce noise. At the same time, the first baffle 45 and the second baffle 46 prevent material residue from flying out. By adjusting the limit pin 49, the position of the second baffle 46 can be adjusted to adapt to the current processing operation.

[0040] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A damping device for a processing table comprising a damping support (1) and a base (2), characterized in that: The damping support (1) is inserted into the base (2); The damping support (1) is provided with a damping assembly (3) for damping the workbench; The damping support (1) is provided with a noise reduction piece (4) for reducing the noise of the workbench; The damping assembly (3) comprises a fixed plate (11) detachably mounted on the top of the damping support (1), the bottom of the fixed plate (11) is detachably provided with four support columns (13), the support columns (13) are provided with first damping pieces (5), the first damping pieces (5) comprise first rubber rings (51) sleeved on the support columns (13), permanent magnets (52) are fixedly installed on the support columns (13) and located below the first rubber rings (51), second rubber rings (53) are sleeved on the support columns (13) and have the same size as the first rubber rings (51), and the second rubber rings (53) are located below the permanent magnets (52), and the bottom of the support column (13) is detachably provided with a fixed sheet (14), and the bottom of the fixed sheet (14) is provided with second damping pieces (6).

2. The buffering and damping device of a processing table according to claim 1, characterized in that: The noise reduction piece (4) comprises a noise reduction plate (41) detachably mounted on the bottom of the fixed plate (11), the noise reduction plate (41) is inserted into the top of the base (2), the inner top of the noise reduction plate (41) is provided with butyl rubber (42), the bottom of the butyl rubber (42) is provided with sound-absorbing cotton (43), the bottom of the sound-absorbing cotton (43) is provided with an aluminum plate (44), the side of the base (2) is fixedly provided with a first baffle (45), the front of the base (2) is slidably connected with a second baffle (46), the side of the base (2) is provided with a sliding groove (411), the sliding groove (411) is provided with a second limiting hole (410), the second limiting hole (410) is inserted with a limiting nail (49), the side of the second baffle (46) is provided with a first limiting hole (47) matched with the limiting nail (49), the first limiting hole (47) is provided with a plurality of groups, and the first limiting hole (47) is linearly arranged from top to bottom, and the first baffle (45) and the second baffle (46) are detachably provided with sound-absorbing plates (48).

3. The buffering and damping device of a processing table according to claim 1, characterized in that: The second damping piece (6) comprises a spring (61) fixedly installed on the bottom of the fixed sheet (14), the bottom of the spring (61) is detachably provided with a gasket (67), the bottom of the fixed sheet (14) is detachably provided with a hydraulic damper (62), and the hydraulic damper (62) is located in the spring (61), the hydraulic damper (62) is filled with hydraulic oil (63), the hydraulic damper (62) is sealingly and slidably connected with a piston (64), the piston (64) is provided with a plurality of groups, and the first limiting hole (47) is linearly arranged from top to bottom, and the first baffle (45) and the second baffle (46) are detachably provided with sound-absorbing plates (48). The second damping piece (6) comprises a spring (61) fixedly installed on the bottom of the fixed sheet (14), the bottom of the spring (61) is detachably provided with a gasket (67), the bottom of the fixed sheet (14) is detachably provided with a hydraulic damper (62), and the hydraulic damper (62) is located in the spring (61), the hydraulic damper (62) is filled with hydraulic oil (63), the hydraulic damper (62) is sealingly and slidably connected with a piston (64), the piston (64) is provided with a plurality of groups, and the first limiting hole (47) is linearly arranged from top to bottom, and the first baffle (45) and the second baffle (46) are detachably provided with sound-absorbing plates (48).

4. The buffering and damping device of a processing table according to claim 1, characterized in that: The base (2) is internally fixedly provided with shock-absorbing boxes (21), the shock-absorbing boxes (21) are symmetrically provided with four, and the base (2) is internally provided with a fixed groove (22) for inserting a gasket (67).

5. A shock absorbing device for a processing station according to claim 4, characterized in that: The shock-absorbing box (21) is internally provided with a recess (24), and the recess (24) is located at the bottom of the first through hole (23); the recess (24) is internally detachably provided with a closed coil (25); and the shock-absorbing box (21) is internally provided with a second through hole (26) matched with the second rubber ring (53), and the second through hole (26) is located at the bottom of the recess (24).

6. The buffering and damping device of a processing table according to claim 2, characterized in that: The fixed plate (11) is internally provided with a mounting hole (12) for mounting a workbench; the noise reduction plate (41) is internally provided with a third rubber ring (15), and the third rubber ring (15) is located between the fixed plate (11) and the base (2); and the permanent magnet (52) is inserted into the closed coil (25).

7. The buffering and damping device of a processing table according to claim 2, characterized in that: The permanent magnet (52) is inserted into the closed coil (25).

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