Machine tool gas circuit system and machine tool

Abstract

The utility model relates to the field of machine tool gas circuits, in particular to a machine tool gas circuit system and a machine tool, the machine tool gas circuit system comprises a main gas circuit and branch gas circuits connected with the main gas circuit, the main gas circuit is respectively connected with the branch circuits, the branch gas circuits at least comprise a main shaft gas circuit, a tool magazine gas circuit and a loose broach gas circuit, and a first switch is arranged on the main shaft gas circuit. A second switch is arranged on the tool magazine door air path, and a third switch is arranged on the loosening and pulling tool air path. A switch is arranged on each branch, so that accurate on-off control over on-off of each branch is achieved, and the utilization efficiency of an air source is improved.

Description

Technical Field

[0001] The utility model relates to the field of machine tool air circuits, and in particular, to a machine tool air circuit system and a machine tool. Background Art

[0002] In current CNC multi-head machine models, the air circuit system usually includes multiple branch circuits for providing air sources for each module. For example, a spindle air circuit, a taper hole air blowing circuit, a tool clamping and unclamping circuit, a tool magazine air circuit, a vacuum breaking circuit, etc. are branched from the main air circuit. In the prior art, referring to Figure 1 , a switch 100 controls the opening and closing of all branch circuits. That is, an on-off switch is provided on the main air circuit. When the air circuit needs to use air, the on-off switch is started, and each branch circuit will be ventilated. However, the problem with this setting is that when only one branch circuit needs to cut off the air and the other branch circuits still need to use air, the on-off switch is turned off, and all branch circuits will cut off the air, which makes it inconvenient to control the on-off of the air circuit. At the same time, the utilization efficiency of the air source is not high. Summary of the Utility Model

[0003] To solve the above problems, the purpose of the utility model is to provide a machine tool air circuit system to improve the control convenience of each branch air circuit and the utilization efficiency of the air source.

[0004] The purpose of the utility model is achieved by the following technical solutions:

[0005] On the one hand, the utility model provides a machine tool air circuit system, including: a main air circuit and branch air circuits connected to the main air circuit. The branch air circuits at least include a spindle air circuit, a tool magazine door air circuit, and a tool clamping and unclamping air circuit;

[0006] A filter is provided on the main air circuit. The filter includes an air source inlet for connecting to an external air source and an air source outlet. The air source outlet is used to supply air to the spindle air circuit, the tool magazine door air circuit, and the tool clamping and unclamping air circuit. The spindle air circuit is used to communicate with the spindle, and a first switch for turning on and off the air circuit is provided on the spindle air circuit. A second switch for turning on and off the air circuit is provided on the tool magazine door air circuit. A third switch for turning on and off the air circuit is provided on the tool clamping and unclamping air circuit.

[0007] In some embodiments, a pneumatic pressure detection switch is further provided on the spindle air circuit, and the pneumatic pressure detection switch is located on the side of the first switch away from the air source outlet.

[0008] In some embodiments, an air storage tank for storing air is provided on the tool clamping and unclamping air circuit, and the air inlet end of the air storage tank is connected to the air source outlet of the filter.

[0009] In some embodiments, the filter includes a first filter and a second filter communicated with the first filter;

[0010] The air source outlet includes a first air source outlet provided on the first filter and a second air source outlet provided on the second filter. The main shaft air path, the tool magazine door air path are communicated with the second air source outlet, and the pull - type tool - clamping air path and the gas storage tank are communicated with the first air source outlet.

[0011] In some embodiments, the main shaft air path further includes a pressure regulator. One end of the pressure regulator is communicated with the second air source outlet, and the other end of the pressure regulator is connected to the side of the first switch away from the main shaft.

[0012] In some embodiments, the main shaft air path is provided with more than two main shaft branches, and each main shaft branch is used for communicating with the corresponding main shaft.

[0013] In some embodiments, the first switch, the second switch and the third switch are all solenoid valves; the main shaft air path, the tool magazine door air path and the pull - type tool - clamping air path are arranged on the integrated board.

[0014] In some embodiments, the machine tool air path system further includes a master control switch, and the master control switch is arranged between the air source inlet and the external air source.

[0015] In some embodiments, the machine tool air path system further includes a controller, and the controller is electrically connected to the first switch, the second switch, the third switch and the master control switch.

[0016] On the other hand, the present utility model further provides a machine tool, including a machine tool body and the machine tool air path system of any one of the above. The machine tool air path system is arranged on the machine tool body.

[0017] The beneficial effects of the present utility model at least include: the main air path is connected to each branch respectively. The branch air paths at least include a main shaft air path, a tool magazine air path and a pull - type tool - clamping air path. A first switch is arranged on the main shaft air path, a second switch is arranged on the tool magazine door air path, and a third switch is arranged on the pull - type tool - clamping air path. By arranging switches on each branch, precise on - off control of each branch can be realized. At the same time, each branch can be automatically turned on and off according to needs, improving the use efficiency of the air source gas and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described herein are used to provide a further understanding of the present utility model and constitute a part of this application. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0019] Figure 1 is a schematic diagram of the principle of the prior art;

[0020] Figure 2 is a schematic diagram of the principle of the machine tool air path system of the present utility model.

[0021] Among them, the reference numerals are: 100 - switch;

[0022] 1 - Main air path, 11 - Filter, 12 - Air source inlet, 13 - First air source outlet, 14 - Second air source outlet, 15 - First filter, 16 - Second filter, 2 - Spindle air path, 21 - First switch, 22 - Air pressure detection switch, 23 - Pressure regulator, 3 - Tool magazine door air path, 31 - Second switch, 4 - Tool clamping and unclamping air path, 41 - Third switch, 42 - Air storage tank, 5 - Spindle 5, 6 - Tool magazine door, 7 - Total control switch. Specific implementation mode

[0023] In order to enable those skilled in the art of this technology to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0024] It should be noted that the "first", "second", "third", etc. in the embodiments of the present utility model are only used for distinction and do not impose any restrictions on the quantity or order. The meaning of "a plurality" is at least two.

[0025] Reference Figure 2 Referring to, a machine tool air path system according to an embodiment of the present utility model includes: a main air path 1 and a branch air path connected to the main air path 1. The branch air path at least includes a spindle air path 2, a tool magazine door air path 3, and a tool clamping and unclamping air path 4. The main air path 1 includes a filter 11. The filter 11 includes an air source inlet 12 for connecting to an external air source and air source outlets 13, 14. The air source outlets 13, 14 are used to supply air to the spindle air path 2, the tool magazine door air path 3, and the tool clamping and unclamping air path 4. The spindle air path 2 is used to communicate with the spindle 5. A first switch 21 for switching on and off the air path is provided on the spindle air path 2. A second switch 31 for switching on and off the air path is provided on the tool magazine door air path 3. A third switch 41 for switching on and off the air path is provided on the tool clamping and unclamping air path 4. In actual use, the tool clamping and unclamping air path 4 communicates with the spindle 5 and is used to supply air to the spindle 5 for installing or removing a tool. The tool magazine door air path 3 is used to communicate with the tool magazine door 6 and is used to supply air for opening and closing the tool magazine door 6.

[0026] The main air path 1 of the present utility model is respectively connected to each branch path. The branch air paths at least include a main shaft air path 2, a tool magazine door air path 3, and a pull - and - release tool air path 4. A first switch 21 is provided on the main shaft air path 2, a second switch 31 is provided on the tool magazine door air path 3, and a third switch 41 is provided on the pull - and - release tool air path 4. By setting switches on each branch path, precise on - off control of each branch path can be achieved. At the same time, each branch path can be automatically turned on and off as needed, improving the utilization efficiency of the air source gas and reducing costs. For example, when only the main shaft air path 2 needs to be disconnected, the first switch 21 is closed, and other branch paths are not affected. Similarly, when only the main shaft air path 2 needs to be used, only the first switch 21 needs to be turned on, thereby improving the utilization efficiency of the air source gas and reducing waste of the air source.

[0027] At the same time, in the present utility model, an electromagnetic valve for controlling the on - off of the air path is added on the main shaft air path 2, so that the main shaft air path 2 does not affect the air flow rate of the main air path 1, and better control of the on - off of the main shaft air path 2 is achieved. This setting reduces the resource loss of the air compressor. Specifically, when the machine tool is turned on and used, the first switch 21 is in the open state. When the machine tool stops for rest or maintenance, the machine tool is in the shutdown state, and the first switch 21 is in the closed state, thereby reducing the resource loss of the air compressor of the machine tool.

[0028] In some embodiments, referring to Figure 2 , a pressure detection switch 22 is also provided on the main shaft air path 2. The pressure detection switch 22 is located on the side of the first switch 21 away from the air source outlets 13, 14. During actual use, the pressure detection switch 22 is located between the first switch 21 and the main shaft 5, and is used to detect the air pressure on the main shaft air path 2. When the air volume in the air path is too small and does not meet the air flow rate requirements of the main shaft air path 2, impurities may enter the main shaft 5, resulting in damage to the main shaft 5. Through the detection of the air pressure by the pressure detection switch 22, it can immediately feedback to the machine tool system, causing an air curtain pressure alarm, and the equipment stops operating to protect the main shaft 5.

[0029] In some embodiments, referring to Figure 2 , an air storage tank 42 for storing gas is provided on the pull - and - release tool air path 4. The air inlet end of the air storage tank 42 is connected to the air source outlets 13, 14 of the filter. The air storage tank 42 is used to communicate with the main shaft 5 to supply air to the main shaft 5. When the air volume of the pull - and - release tool air path 4 is too small, it may cause abnormal pull - and - release of the tool on the main shaft 5, resulting in harmful accidents such as tool dropping on the main shaft 5. By adding an air storage tank 42 that can store the air used for pulling and releasing the tool on the pull - and - release tool air path 4, the air flow rate for pulling and releasing the tool is ensured. That is, when the air pressure for pulling and releasing the tool is insufficient, the air storage tank 42 can supply air to the main shaft 5 to ensure that the main shaft 5 has sufficient air pressure for pulling and releasing the tool.

[0030] In some embodiments, referring to Figure 2, the filter 11 includes a first filter 15 and a second filter 16. The air source outlets 13, 14 include a first air source outlet 13 provided on the first filter 15 and a second air source outlet 14 provided on the second filter 16. The main shaft air path 2 and the tool magazine door air path 3 are communicated with the second air source outlet 14, and the tool unclamping and clamping air path 4 and the air storage tank 42 are communicated with the first air source outlet 13. The air source enters from the air source inlet 12 of the first filter 15, and then is output from the first air source outlet 13 and the second air source outlet 14. The air source is filtered by the first filter 15 and the second filter 16 to improve the purity of the air flow delivered to each branch of the system. The filter 11 is set to two or more. The first filter 15 performs a first rough filtration on the air source, and the second filter 16 performs a further fine filtration on the air source filtered by the first filter 15, so that the air source filtered by the second filter 16 meets the requirements of the specific branch air path for the air source cleanliness. For the branch with not particularly high requirements for the air source cleanliness, the air flow can be introduced from the first filter 15. For example, a first air source outlet 13 is provided on the first filter 15, and the air storage tank 42 is communicated with the first air source outlet 13. That is, the tool unclamping and clamping air path 4 is communicated with the first filter 15, and the air flow is delivered into the air storage tank 42 of the tool unclamping and clamping air path 4 after being filtered by the first filter 15.

[0031] In some embodiments, referring to Figure 2 , the main shaft air path 2 further includes a pressure regulator 23. One end of the pressure regulator 23 is communicated with the second air source outlet 14, and the other end of the pressure regulator 23 is connected to the side of the first switch 21 away from the main shaft 5. The pressure regulator 23 is used to adjust the air pressure on the main shaft air path 2. The pressure regulator 23 and the air pressure detection switch 22 can work in coordination with each other. For example, when the pressure regulator 23 detects that the air pressure on the main shaft air path 2 is too high or too low, the air pressure detection switch 22 issues an alarm, and the air pressure on the main shaft air path 2 can be adjusted through the pressure regulator 23 so that the air pressure meets the requirements of the main shaft air path 2.

[0032] In some embodiments, referring to Figure 2 , the main shaft air path 2 is provided with more than two main shaft 5 branches, and each main shaft 5 branch is used to communicate with the corresponding main shaft 5. This design method is used for machine tools with multiple main shafts 5, and each main shaft 5 branch is used to supply air to the connected main shaft 5. In this embodiment, the number of main shafts 5 connected to the main shaft air path 2 is set to four; the tool unclamping and clamping air path 4 also supplies air to the four main shafts 5.

[0033] In some embodiments, referring to Figure 2 , the first switch 21, the second switch 31 and the third switch 41 are all solenoid valves, and the on-off control of each branch is performed through the solenoid valves.

[0034] In some embodiments, referring to Figure 2, the main shaft air circuit 2, the tool magazine door air circuit 3 and the pull - and - release tool air circuit 4 are integrally arranged on an integrated board (not shown in the figure), which is convenient for managing and arranging the air circuit system. When the machine tool needs to use the air circuit system of the present application, the integrated board can be installed on the machine tool.

[0035] In some embodiments, referring to Figure 2 , the machine tool air circuit system further includes a master control switch 7. The master control switch 7 is arranged between the air source inlet 12 and the external air source. The on - off control of the entire air circuit system can be achieved through the master control switch.

[0036] In some embodiments, the above - mentioned machine tool air circuit system may further include a controller. The controller is electrically connected to the first switch 21, the second switch 31, the third switch 41 and the master control switch 7. Through the controller, the first switch 21, the second switch 31, the third switch 41 and the master control switch 7 can be automatically controlled according to the working state of the machine tool, so as to control the air supply and cut - off of the main shaft air circuit 2, the tool magazine door air circuit 3 and the pull - and - release tool air circuit 4, and improve the automation level of the machine tool.

[0037] In some embodiments, a machine tool of the embodiment of the present utility model includes a machine tool body and the machine tool air circuit system of any one of the above. By using the above - mentioned machine tool air circuit system, accurate on - off control of each branch can be realized. For example, referring to Figure 1 , when only the main shaft air circuit 2 needs to be disconnected, the first switch 21 is turned off, and other branches are not affected.

[0038] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

Claims

1. A machine tool pneumatic circuit system, characterized in that, Comprising: A main air path (1) and branch air paths connected to the main air path (1), the branch air paths at least including a main spindle air path (2), a tool magazine door air path (3), and a pull - and - release tool air path (4); A filter (11) is provided on the main air path (1), the filter (11) includes an air source inlet (12) for connecting to an external air source and air source outlets (13, 14), the air source outlets (13, 14) are used to supply air to the main spindle air path (2), the tool magazine door air path (3), and the pull - and - release tool air path (4), the main spindle air path (2) is used to communicate with a main spindle (5), a first switch (21) for switching on and off the air path is provided on the main spindle air path (2), a second switch (31) for switching on and off the air path is provided on the tool magazine door air path (3), and a third switch (41) for switching on and off the air path is provided on the pull - and - release tool air path (4).

2. The machine tool air circuit system according to claim 1, characterized in that, A pressure detection switch (22) is further provided on the main spindle air path (2), and the pressure detection switch (22) is located on a side of the first switch (21) away from the air source outlets (13, 14).

3. The machine tool air circuit system according to claim 2, characterized in that, An air storage tank (42) for storing air is provided on the pull - and - release tool air path (4), and an inlet end of the air storage tank (42) is connected to the air source outlet (13, 14) of the filter (11).

4. The machine tool air circuit system according to claim 3, characterized in that, The filter (11) includes a first filter (15) and a second filter (16) communicated with the first filter (15); The air source outlets (13, 14) include a first air source outlet (13) provided on the first filter (15) and a second air source outlet (14) provided on the second filter (16), the main spindle air path (2), the tool magazine door air path (3) are communicated with the second air source outlet (14), and the pull - and - release tool air path (4) and the air storage tank (42) are communicated with the first air source outlet (13).

5. The machine tool air circuit system according to claim 4, characterized in that, The main spindle air path (2) further includes a pressure regulator (23), one end of the pressure regulator (23) is communicated with the second air source outlet (14), and the other end of the pressure regulator (23) is connected to a side of the first switch (21) away from the main spindle (5).

6. The machine tool air circuit system according to claim 5, characterized in that The main spindle air path (2) is divided into two or more main spindle branches, and each main spindle branch is used to communicate with a corresponding main spindle (5).

7. The machine tool air circuit system according to any one of claims 1-6, characterized in that, The first switch (21), the second switch (31), and the third switch (41) are all solenoid valves; the main spindle air path (2), the tool magazine door air path (3), and the pull - and - release tool air path (4) are arranged on an integrated board.

8. The machine tool air circuit system according to claim 7, characterized in that, The machine tool air path system further includes a master control switch (7), and the master control switch (7) is provided between the air source inlet (12) and the external air source.

9. The machine tool air circuit system according to claim 8, wherein It further includes a controller, and the controller is electrically connected to the first switch (21), the second switch (31), the third switch (41), and the master control switch (7).

10. A machine tool, characterized in that, Comprising a machine tool body and the machine tool air path system according to any one of claims 1 to 9, and the machine tool air path system is arranged on the machine tool body.

Images