An adjustable low center of gravity machine tool structure

Abstract

The application relates to an adjustable low-barycenter machine tool structure and relates to the technical field of numerical control machining production. The adjustable low-barycenter machine tool structure comprises a machine tool, a plurality of damping support tables for supporting the machine tool are arranged on the machine tool, a moving channel is arranged in the damping support table, a movable seat is slidably arranged in the moving channel, a driving piece is arranged on the damping support table, and the driving piece is used for driving the top end of the movable seat to move out through the moving channel; an air cavity is arranged in the movable seat, an air cushion abutting against the machine tool is arranged on the top of the movable seat, and an air inlet pipe in communication with the air cavity is arranged on the damping support table. The application has the effect that after the air cushion of the machine tool leaks, the machine tool does not shake violently due to the loss of support, and the machining of a workpiece is not greatly affected.

Description

Technical Field

[0001] This application relates to the field of CNC machining production technology, and in particular to an adjustable low center of gravity machine tool structure. Background Technology

[0002] In the production process of CNC machining centers, in order to avoid the impact of external vibrations on the machine tool's processing, which could lead to the workpiece's surface finish not achieving the desired effect, or affect the workpiece's processing dimensions, making it difficult to achieve ultra-high precision machining, existing technologies typically install multiple air-bearing vibration dampers on the machine tool's base. These dampers buffer the vibrations received by the machine tool and adjust the machine tool's center of gravity, resulting in a lower center of gravity and thus making the machining process more stable.

[0003] Multiple air-bearing shock absorbers are distributed throughout the machine tool to support it. Each air-bearing shock absorber has an air chamber inside its housing and an air cushion at the top. When inert gas is introduced into the air chamber, the air cushion inflates and expands to come into contact with the machine tool, thus providing support for the machine tool.

[0004] In actual operation, air cushions are prone to deformation after long-term use, and they will also rub against the machine tool during the process of bearing machine tool vibration. As a result, the surface of the air cushion is prone to unavoidable wear. Over time, the wear of the air cushion will intensify and it will be easy to break. When it breaks, the air cushion will deflate and will not be able to provide strong support for the machine tool. The machine tool will then be prone to violent shaking, which will greatly affect the processing of the workpiece and pose certain safety hazards. Summary of the Invention

[0005] In order to improve the problem in the existing technology that when the air cushion is damaged after long-term use, the air cushion deflates and fails to provide strong support for the machine tool, the machine tool is prone to violent shaking, which greatly affects the processing of the workpiece and poses certain safety hazards, this application provides an adjustable low center of gravity machine tool structure.

[0006] The adjustable low-center-of-gravity machine tool structure provided in this application adopts the following technical solution:

[0007] An adjustable low center of gravity machine tool structure includes a machine tool with multiple damping support platforms for supporting it. Each damping support platform has a moving channel, and a movable seat slides within the moving channel. A driving component is provided on each damping support platform to drive the top of the movable seat to move out through the moving channel. An air chamber is provided within the movable seat, and an air cushion is provided on the top of the movable seat to abut against the machine tool. An air inlet pipe communicating with the air chamber is provided on the damping support platform.

[0008] By adopting the above technical solution, the driving component drives the movable seat to move within the moving channel. The top of the movable seat moves the air cushion out through the moving channel. An external air source introduces gas into the air chamber through the air inlet pipe, causing the air cushion to expand and come into contact with the bottom of the machine tool, thus supporting the machine tool. When the air cushion is damaged after long-term use, it deflates, causing the machine tool to drop a short distance and come into contact with the damping support table. The damping support table, which has a certain shock absorption capacity, continues to support the machine tool, thus preventing the machine tool from shaking violently due to loss of support after the air cushion deflates, which would significantly affect the processing of the workpiece and avoid safety hazards. In addition, during daily use, the machine tool can switch between the state supported by the damping support table and the state supported by the air cushion, allowing the machine tool to adapt to different working environments.

[0009] Optionally, the damping support platform includes a fixed base and a damping plate. The moving channel is opened in the fixed base. The damping plate is slidably disposed on the top of the fixed base and can abut against the machine tool. The damping plate has an outlet communicating with the moving channel. A shock-absorbing pad is provided between the damping plate and the fixed base.

[0010] By adopting the above technical solution, the air cushion extends through the outlet and comes into contact with the machine tool, thereby supporting the machine tool. When the air cushion deflates, the damping plate comes into contact with the bottom of the machine tool. The combined action of the damping plate and the shock-absorbing pad can achieve a vibration reduction effect. When the machine tool is subjected to vibration, the vibration is transmitted to the shock-absorbing pad through the damping plate, and the shock-absorbing pad absorbs the vibration, thereby ensuring the stability of the machine tool.

[0011] Optionally, the shock-absorbing pad is provided with an airbag, the fixed base is provided with an installation channel communicating with the outside, the installation channel is provided with a sealing tube, a push rod is slidably installed in the sealing tube, and a first spring is connected between the push rod and the inner wall of the sealing tube.

[0012] By adopting the above technical solution, when the damping pad is subjected to vibration transmitted by the machine tool, the damping pad squeezes the air bladder. After the air bladder is squeezed, the air in the sealed tube is compressed, thereby pushing the push rod to move. With the cooperation of the first spring, the push rod will reciprocate and extend, thereby converting the vibration energy into mechanical action, and thus playing a damping role.

[0013] Optionally, the movable seat is provided with a fixed ring plate and a movable ring plate, the fixed ring plate and the movable ring plate are detachably connected, and the side of the air cushion is clamped and fixed between the movable ring plate and the fixed ring plate.

[0014] By adopting the above technical solution, the movable ring plate and the fixed ring plate work together to clamp and fix the side of the air cushion, thereby fixing the air cushion to the movable seat. When the air cushion is damaged after long-term use, the movable ring plate can be removed, and then the damaged air cushion can be removed from the fixed ring plate and a new air cushion can be installed, thus replacing the air cushion. The cooperation of each component in the above process allows for flexible disassembly and assembly of the air cushion. When the air cushion is damaged, it can be replaced individually, thereby reducing the cost of wear and tear.

[0015] Optionally, the movable ring plate includes two semi-rings that are hinged to each other, and the ends of the two semi-rings away from their respective hinge axes are detachably connected.

[0016] By adopting the above technical solution, after the air cushion is installed on the fixing ring plate, the two half rings are rotated to press the side ends of the air cushion tightly, and then the two half rings are connected to complete the fixing of the air cushion. The fixing method is flexible and easy to operate.

[0017] Optionally, the drive unit includes an air distribution pipe connected to the air intake pipe, and the air distribution pipe is provided with a control valve for controlling the opening and closing of the air distribution pipe, and the air distribution pipe is connected to the moving channel.

[0018] By adopting the above technical solution, the gas distribution pipe is opened by controlling the control valve, thereby connecting the gas distribution pipe to the air inlet pipe. An external air source introduces gas into the air inlet pipe. Part of the gas enters the air chamber through the air inlet pipe for inflation, and part of the gas enters the gas distribution pipe. The gas then enters the moving channel through the gas distribution pipe, thereby pushing the movable seat to move the top of the movable seat out. With this setting, the movement and inflation of the movable seat can be carried out simultaneously, thereby improving the working efficiency of the movable seat.

[0019] Optionally, a first limiting ring plate is provided at the top of the moving channel, and a second limiting ring plate is provided on the movable seat. The second limiting ring plate moves to abut against the first limiting ring plate to prevent the movable seat from disengaging from the moving channel.

[0020] By adopting the above technical solution, the first limiting ring plate and the second limiting ring plate work together to limit the movement range of the movable seat. The second limiting ring plate moves with the movement of the movable seat. When the second limiting ring plate moves to abut against the first limiting ring plate, the continued movement of the second limiting ring plate in the same direction is restricted. At this time, the air cushion at the top of the movable seat moves out through the moving channel, thereby preventing the movable seat from leaving the moving channel during the movement process and improving the stability of the movable seat during the movement process.

[0021] Optionally, a sealing gasket is provided on the side of the first limiting ring plate facing the second limiting ring plate.

[0022] By adopting the above technical solution, when the second limiting ring plate moves with the movable seat to abut against the first limiting ring plate, the air cushion at the top of the movable seat moves out through the moving channel. At this time, the sealing gasket is located between the first limiting ring plate and the second limiting ring plate and is squeezed, thereby ensuring the amount of gas in the moving channel and preventing gas from overflowing through the gap between the second limiting ring plate and the first limiting ring plate, which would cause the movable seat to move unstablely downward.

[0023] Optionally, an auxiliary support rod is hinged to the damping support platform, and a fixing block is hinged to one end of the auxiliary support rod away from the damping support platform. The fixing block is detachably connected to the machine tool.

[0024] By adopting the above technical solution, the damping support platform is connected to the machine tool through the auxiliary support rod, thereby improving the tightness of the connection between the damping support platform and the machine tool, and thus improving the stability of the machine tool during operation. When the air cushion is damaged and needs to be repaired or replaced, the fixing block can be connected to the machine tool, thereby separating the auxiliary support rod from the machine tool, which facilitates maintenance operations.

[0025] Optionally, the auxiliary support rod includes a fixed rod hinged to the damping support platform and a movable rod hinged to the fixed block. The fixed rod and the movable rod are slidably connected coaxially, and a second spring is connected between the fixed rod and the movable rod.

[0026] By adopting the above technical solution, when the machine tool is vibrated and shakes, sliding occurs between the movable rod and the fixed rod to accommodate the shaking of the machine tool. Part of the vibration is transmitted to the movable rod through the movable block, and the movable rod transmits the vibration to the second spring and the fixed rod, thereby transmitting and decomposing the vibration received by the machine tool and improving the stability of the machine tool.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. When the air cushion ruptures after prolonged use, it deflates. The machine tool will then fall a short distance and come into contact with the damping support table. The damping support table, with its shock-absorbing capacity, continues to support the machine tool, thus preventing violent shaking caused by the loss of support after the air cushion deflates, which could significantly affect workpiece processing and avoid safety hazards. Furthermore, the machine tool can switch between being supported by the damping support table and the air cushion during daily use, allowing it to adapt to different working environments.

[0029] 2. The movable ring plate and the fixed ring plate work together to clamp and fix the side of the air cushion, thereby fixing the air cushion to the movable seat. When the air cushion is damaged after long-term use, the movable ring plate can be removed, and then the damaged air cushion can be removed from the fixed ring plate. Then, a new air cushion can be installed, thereby replacing the air cushion. The cooperation of the various components in the above process allows for flexible disassembly and assembly of the air cushion. When the air cushion is damaged, it can be replaced individually, thereby reducing the cost of wear and tear.

[0030] 3. The damping support platform is connected to the machine tool through an auxiliary support rod, thereby improving the tightness of the connection between the damping support platform and the machine tool, and thus improving the stability of the machine tool during operation. When the air cushion is damaged and needs to be repaired or replaced, the fixing block can be connected to the machine tool, thereby separating the auxiliary support rod from the machine tool, which facilitates maintenance operations. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of an adjustable low center of gravity machine tool structure according to an embodiment of this application;

[0032] Figure 2 This is a schematic diagram of the connection between the two damping support platforms and the main pipe in an embodiment of this application;

[0033] Figure 3 This is a cross-sectional view of the damping support platform in the embodiments of this application;

[0034] Figure 4 yes Figure 2 Enlarged view of section A;

[0035] Figure 5 This is a cross-sectional view of the fixed rod and the movable rod in the embodiment of this application.

[0036] Explanation of reference numerals in the attached drawings: 1. Machine tool; 2. Movable seat; 3. Moving channel; 4. Damping support platform; 41. Fixed seat; 42. Damping plate; 5. Air chamber; 6. Air cushion; 7. Air inlet pipe; 8. Outlet pipe; 9. Shock-absorbing pad; 10. Airbag; 11. Installation channel; 12. Sealing pipe; 13. Push rod; 14. First spring; 15. Fixed ring plate; 16. Half ring; 17. Air distribution pipe; 18. First limiting ring plate; 19. Second limiting ring plate; 20. Auxiliary support rod; 201. Fixed rod; 202. Movable rod; 21. Fixed block; 22. Second spring; 23. Main pipe; 24. Connecting rod; 25. Elastic band. Detailed Implementation

[0037] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0038] This application discloses an adjustable low-center-of-gravity machine tool structure. (Refer to...) Figure 1The adjustable low center of gravity machine tool structure includes a machine tool 1, on which multiple damping support platforms 4 are provided for supporting the machine tool 1, as shown in the figure. Figure 2 and Figure 3 The damping support platform 4 has a moving channel 3, and a movable seat 2 is slidably installed in the moving channel 3. The damping support platform 4 is equipped with a driving component, which is used to drive the top of the movable seat 2 to move out through the moving channel 3. The movable seat 2 has an air chamber 5, and the top of the movable seat 2 is equipped with an air cushion 6 that abuts against the machine tool 1. The damping support platform 4 is equipped with an air inlet pipe 7 that communicates with the air chamber 5.

[0039] Reference Figure 2 and Figure 3 The intake pipe 7 is corrugated at one end near the movable seat 2 and fixed to the movable seat 2. A main pipe 23 is connected to the intake pipe 7. A control valve for controlling the opening and closing of the main pipe 23 is provided on the main pipe 23. The two ends of the same main pipe 23 are respectively connected to the corresponding intake pipes 7 on the two damping support platforms 4. The driving component includes a distribution pipe 17 connected to the intake pipe 7. A control valve for controlling the opening and closing of the intake pipe 7 is provided on the intake pipe 7. A control valve for controlling the opening and closing of the distribution pipe 17 is provided on the distribution pipe 17. The distribution pipe 17 is connected to the moving channel 3.

[0040] The main pipe 23, air inlet pipe 7, and air distribution pipe 17 are opened by the control valves on the corresponding pipelines. The external air source introduces gas into the air inlet pipe 7 and air distribution pipe 17 through the main pipe 23. Some gas enters the air chamber 5 through the air inlet pipe 7 for inflation, and some gas enters the air distribution pipe 17. The gas then enters the moving channel 3 through the air distribution pipe 17, thereby pushing the movable seat 2 to move the top of the movable seat 2 out. The movement and inflation of the movable seat 2 can be carried out simultaneously, thereby improving the working efficiency of the movable seat 2. In addition, the movement and inflation of the movable seat 2 can also be carried out separately by controlling the opening and closing of the corresponding pipelines through different control valves, making the adjustment of the movable seat 2 more flexible.

[0041] Reference Figure 3 and Figure 4 The movable seat 2 is provided with a fixed ring plate 15 and a movable ring plate. The movable ring plate includes two semi-rings 16 that are hinged to each other. The side of the air cushion 6 is clamped and fixed between the movable ring plate and the two semi-rings 16. A connecting rod 24 is fixed at one end of the two semi-rings 16 away from their respective hinge axes. The same elastic band 25 is sleeved on the two connecting rods 24.

[0042] The movable ring plate and the fixed ring plate 15 work together to clamp and fix the side of the air cushion 6, thereby fixing the air cushion 6 to the movable seat 2. When the air cushion 6 is damaged after long-term use, the movable ring plate can be removed, and then the damaged air cushion 6 can be removed from the fixed ring plate 15. Then, a new air cushion 6 can be installed. The two half rings 16 are rotated to press the side of the air cushion 6. Then, the two connecting rods 24 are connected by the elastic band 25, thereby connecting and fixing the two half rings 16, thus completing the fixation of the air cushion 6 to the movable seat 2.

[0043] Reference Figure 3 A first limiting ring plate 18 is fixed to the inner wall of the top of the moving channel 3, and a second limiting ring plate 19 is fixed to the movable seat 2. A sealing gasket is fixed to the side of the first limiting ring plate 18 facing the second limiting ring plate 19. The second limiting ring plate 19 moves to abut against the first limiting ring plate 18 to prevent the movable seat 2 from disengaging from the moving channel 3.

[0044] The second limiting ring plate 19 moves along with the movable seat 2. When the second limiting ring plate 19 moves to abut against the first limiting ring plate 18, the continued movement of the second limiting ring plate 19 in the same direction is restricted, thereby preventing the movable seat 2 from disengaging from the moving channel 3 during its movement. At this time, the air cushion 6 at the top of the movable seat 2 moves out through the moving channel 3, and the sealing gasket is squeezed between the first limiting ring plate 18 and the second limiting ring plate 19, thereby ensuring the amount of gas in the moving channel 3 and preventing gas from overflowing through the gap between the second limiting ring plate 19 and the first limiting ring plate 18, which would cause the movable seat 2 to move unstablely downward.

[0045] Reference Figure 3 The damping support platform 4 includes a fixed base 41 and a damping plate 42. A moving channel 3 is opened inside the fixed base 41. The damping plate 42 is slidably mounted on the top of the fixed base 41 and can abut against the machine tool 1. An outlet 8 communicating with the moving channel 3 is opened on the damping plate 42. A shock-absorbing pad 9 is provided between the damping plate 42 and the fixed base 41. The two sides of the shock-absorbing pad 9 are fixed to the damping plate 42 and the fixed base 41 respectively. An airbag 10 is provided inside the shock-absorbing pad 9. An installation channel 11 communicating with the outside is opened on the fixed base 41. A sealing tube 12 is provided inside the installation channel 11. A push rod 13 is slidably mounted inside the sealing tube 12. A first spring 14 is connected between the push rod 13 and the inner wall of the sealing tube 12. One end of the first spring 14 is fixed to the push rod 13, and the other end is fixed to the inner wall of the sealing tube 12.

[0046] Air cushion 6 extends through outlet 8 and abuts against machine tool 1, thereby supporting machine tool 1. When air cushion 6 deflates, damping plate 42 abuts against the bottom of machine tool 1. The combined action of damping plate 42 and shock absorber 9 can achieve a shock absorption effect. When machine tool 1 is subjected to vibration, the vibration is transmitted to shock absorber 9 through damping plate 42. Shock absorber 9 transmits the vibration and compresses air bladder 10. After air bladder 10 is compressed, the air in sealing tube 12 is compressed, thereby pushing push rod 13 to move. With the cooperation of first spring 14, push rod 13 will reciprocate and extend, thereby converting vibration energy into mechanical action, thus achieving a shock absorption effect.

[0047] Reference Figure 2 and Figure 5 A fixed rod 201 is hinged to the fixed base 41 via an ear plate. A movable rod 202 is slidably connected to the fixed rod 201 on the same axis. A second spring 22 is provided inside the movable rod 202. The two ends of the second spring 22 abut against the fixed rod 201 and the movable rod 202 respectively. A fixed block 21 is hinged to the end of the movable rod 202 away from the fixed rod 201 via an ear plate. The fixed block 21 is connected to the machine tool 1 by a pin.

[0048] When the machine tool 1 is vibrated and shakes, the movable rod 202 and the fixed rod 201 slide to accommodate the shaking of the machine tool 1. Some of the vibration is transmitted to the movable rod 202 through the movable block, and the movable rod 202 transmits the vibration to the second spring 22 and the fixed rod 201, thereby transmitting and decomposing the vibration received by the machine tool 1 and improving the stability of the machine tool 1. When the air cushion 6 is damaged and needs to be repaired or replaced, the fixed block 21 can be connected to the machine tool 1, thereby separating the movable rod 202 from the machine tool 1, which facilitates maintenance operations.

[0049] In this embodiment, the fixed rod 201 and the fixed seat 41, as well as the movable rod 202 and the fixed block 21, are hinged by ear plates. In other embodiments, to further improve the flexibility of the connection between the fixed seat 41 and the fixed rod 201, as well as the movable rod 202 and the fixed block 21, the fixed rod 201 and the fixed seat 41, as well as the movable rod 202 and the fixed block 21, can be connected by ball joints.

[0050] The implementation principle of an adjustable low-center-of-gravity machine tool structure according to an embodiment of this application is as follows: External gas enters the moving channel 3 through the air distribution pipe 17, and the movable seat 2 is pushed to move within the moving channel 3. The top of the movable seat 2 drives the air cushion 6 to move out through the moving channel 3. External gas is introduced into the air chamber 5 through the air inlet pipe 7, and the air cushion 6 expands and comes into contact with the bottom of the machine tool 1, thereby supporting the machine tool 1. When the air cushion 6 is damaged after long-term use, it deflates, and the machine tool 1 will drop a short distance and come into contact with the damping support platform 4. The damping support platform 4, which has a certain shock absorption and buffering capacity, continues to support the machine tool 1, thereby preventing the machine tool 1 from shaking violently due to loss of support after the air cushion 6 deflates, which would greatly affect the processing of the workpiece and avoid safety hazards. In addition, during daily use, the machine tool 1 can switch between the state supported by the damping support platform 4 and the state supported by the air cushion 6, so that the machine tool 1 can adapt to different working environments.

[0051] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An adjustable low center of gravity machine tool structure, characterized in that: The system includes a machine tool (1), which is provided with multiple damping support platforms (4) for supporting the machine tool (1). The damping support platform (4) has a moving channel (3) inside, and a movable seat (2) is slidably arranged in the moving channel (3). The damping support platform (4) is provided with a driving component, which is used to drive the top of the movable seat (2) to move out through the moving channel (3). The movable seat (2) has an air cavity (5) inside, and an air cushion (6) that abuts against the machine tool (1) is provided on the top of the movable seat (2). The damping support platform (4) is provided with an air inlet pipe (7) that communicates with the air cavity (5). The damping support platform (4) includes a fixed base (41) and a damping plate (42). The moving channel (3) is opened in the fixed base (41). The damping plate (42) is slidably mounted on the top of the fixed base (41) and can abut against the machine tool (1). The damping plate (42) has an outlet (8) communicating with the moving channel (3). A shock-absorbing pad (9) is provided between the damping plate (42) and the fixed base (41). An airbag (10) is provided inside the shock-absorbing pad (9). An installation channel (11) communicating with the outside is provided on the fixed base (41). A sealing tube (12) is provided inside the installation channel (11). A push rod (13) is slidably provided inside the sealing tube (12). A first spring (14) is connected between the push rod (13) and the inner wall of the sealing tube (12). The drive unit includes a split pipe (17) that communicates with the air intake pipe (7) and the moving channel (3); An auxiliary support rod (20) is hinged on the damping support platform (4). A fixing block (21) is hinged to one end of the auxiliary support rod (20) away from the damping support platform (4). The fixing block (21) is detachably connected to the machine tool (1). The auxiliary support rod (20) includes a fixed rod (201) hinged to the damping support platform (4) and a movable rod (202) hinged to the fixed block (21). The fixed rod (201) and the movable rod (202) are slidably connected coaxially, and a second spring (22) is connected between the fixed rod (201) and the movable rod (202).

2. The adjustable low center of gravity machine tool structure according to claim 1, characterized in that: The movable seat (2) is provided with a fixed ring plate (15) and a movable ring plate. The fixed ring plate (15) and the movable ring plate are detachably connected. The side of the air cushion (6) is clamped and fixed between the movable ring plate and the fixed ring plate (15).

3. The adjustable low center of gravity machine tool structure according to claim 2, characterized in that: The movable ring plate includes two semi-rings (16) that are hinged to each other, and the two semi-rings (16) are detachably connected at one end away from their respective hinge axes.

4. The adjustable low center of gravity machine tool structure according to claim 1, characterized in that: The gas distribution pipe (17) is provided with a control valve for controlling the opening and closing of the gas distribution pipe (17).

5. The adjustable low center of gravity machine tool structure according to claim 4, characterized in that: The top of the moving channel (3) is provided with a first limiting ring plate (18), and the movable seat (2) is provided with a second limiting ring plate (19). The second limiting ring plate (19) moves to abut against the first limiting ring plate (18) to prevent the movable seat (2) from leaving the moving channel (3).

6. The adjustable low center of gravity machine tool structure according to claim 5, characterized in that: A sealing gasket is provided on the side of the first limiting ring plate (18) facing the second limiting ring plate (19).

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