A tool magazine door opening and closing system

Abstract

The utility model discloses a tool magazine door opening and closing system, including at least one opening and closing mechanism, the opening and closing mechanism includes a tool magazine door, a driving cylinder, a driving system and a reset assembly; the tool magazine door is located below the tool magazine cylinder and is opened and closed, the piston rod of the driving cylinder and the tool magazine door are fixed to control the opening of the tool magazine door, the driving system is used to connect the air intake system of the tool magazine cylinder and the driving cylinder, so that the tool magazine door is opened before the tool magazine cylinder is extended and retracted, and the reset assembly is connected to the tool magazine door so that the tool magazine door is closed after use. The utility model can not only solve the problem that the waste chips of the CNC machine tools without the tool magazine door installed in the prior art are easy to affect the work of the tool magazine and the waste chips are not easy to clean, but also can add the tool magazine door on the basis of not changing the control program of the entire CNC machine tool, and can also ensure that the opening of the tool magazine door is prior to the extension and retraction of the tool magazine cylinder, so as to achieve the purpose of normal tool preparation, so that the tool magazine door opening and closing system of the utility model can be applied to various CNC machine tools without the tool magazine door installed.

Description

Technical Field

[0001] The utility model relates to the technical field of tool magazine door switches, in particular to a tool magazine door opening and closing system. Background Art

[0002] CNC machine tools are one of the most widely used CNC machine tools. They are mainly used for cutting and processing of inner and outer cylindrical surfaces of shaft workpieces or disk workpieces, inner and outer conical surfaces of arbitrary cone angles, complex rotary inner and outer curved surfaces, and cylindrical and conical threads, and can also perform grooving, drilling, reaming, reaming and boring, etc.

[0003] CNC machine tools automatically process the workpiece according to a pre-programmed processing program. When the machine tool is running, the processing route, process parameters, tool movement trajectory, displacement, cutting parameters and other instructions of the workpiece are pre-written into a processing program sheet, and then the contents of this program sheet are recorded on the control medium and then input into the CNC device of the CNC machine tool, thereby commanding the machine tool to process the workpiece.

[0004] During the process of processing the workpiece by the CNC lathe, multiple tools will be used to process the workpiece. For this reason, the CNC machine tool structure in the prior art is shown in the patent application number CN202210985765.X, entitled Tool Magazine Door Structure, CNC Machine Tool and Intelligent Tool Changing Method, which includes a tool magazine door, a turntable arranged on one side of the tool magazine door, and a tool changing mechanism (manipulator) arranged on the other side of the tool magazine door. The tool changing mechanism and the processing mechanism (spindle) cooperate.

[0005] During installation and use, multiple tools are set on the turntable. The tools to be used rotate with the turntable to the tool magazine door position. The tool magazine door is opened by the driving cylinder to form an opening. Then, the tool magazine cylinder coordinated with the turntable works to vertically pass tool A at a specific position on the turntable through the opening. The tool changing mechanism exchanges the positions of tool B and tool A on the processing mechanism, installs tool A on the processing mechanism, and places tool B on the sleeve of the turntable. The tool magazine cylinder works to recycle tool B to the turntable, and the driving cylinder works to close the tool magazine door. The tool A set on the processing mechanism processes the workpiece. Repeat the above steps when changing the tool again until the workpiece completes the preset processing steps.

[0006] The function of the tool magazine door is to ensure that the processing waste chips are blocked out when the processing mechanism is working, to prevent the waste chips from entering the space where the turntable is located, to prevent dust from accumulating in the space where the turntable is located, and to ensure the normal use of the turntable and the tool magazine cylinder.

[0007] In the CNC machine tool with the above structure, in order to prevent the tool magazine door from affecting the tool preparation process, the tool magazine door must be opened before the tool magazine cylinder works. In the prior art, to achieve the above purpose, it is necessary to set corresponding sensors at both ends of the drive cylinder, and the position data of the sensors are carried on the control program of the CNC machine tool, and the drive cylinder of the tool magazine door is ensured to work before the tool magazine cylinder through programming control.

[0008] However, there are still some CNC machine tools without tool magazine doors in the prior art, which means that the control program of such CNC machine tools does not contain a control process for opening the tool magazine door and the opening time of the tool magazine door.

[0009] If this type of CNC machine tool needs to be equipped with an additional tool magazine door, similarly, a combination of a cylinder and a sensor can be used to drive the opening and closing of the tool magazine door. Then the working time of the driving cylinder also needs to be coordinated with the working time of the tool magazine cylinder, and the control program of the entire CNC machine tool needs to be redesigned to achieve this function. At the same time, this method also requires the addition of multiple sensors to be used in conjunction with the driving cylinder. However, due to environmental issues, the more sensors installed, the easier it is to break, affecting processing efficiency and maintenance efficiency. . CNC machine tools without tool magazine doors not only affect the normal use of the turntable, but also have the problem of inconvenience in cleaning when waste chips enter the side where the turntable is located. For this reason, it is now necessary to provide a tool magazine door structure that can adapt to CNC machine tools that originally did not have a tool magazine door installed and can achieve a normal tool preparation process. Utility Model Content

[0010] In view of the deficiencies in the prior art, the utility model provides a tool magazine door opening and closing system, which can be adapted to CNC machine tools that were originally not designed with tool magazine doors or did not have tool magazine doors installed. Without changing the control program, it can ensure the opening of the newly installed tool magazine door and achieve the purpose of normal tool preparation.

[0011] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a tool magazine door opening and closing system, used in conjunction with the air intake system of the tool magazine cylinder, the opening and closing system includes at least one opening and closing mechanism, the opening and closing mechanism includes a tool magazine door, a driving cylinder, a driving system and a reset component;

[0012] The tool magazine door is used in conjunction with the tool magazine cylinder and is opened and closed.

[0013] The piston rod of the driving cylinder and the tool magazine door are fixed to control the opening of the tool magazine door.

[0014] The drive system is used to connect the air intake system of the tool magazine cylinder and the drive cylinder, so that the tool magazine door opens before the tool magazine cylinder retracts.

[0015] The reset assembly is connected to the tool magazine door so that the tool magazine door is closed after use.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The opening and closing system provided by the utility model is installed in cooperation with the air intake system of the existing tool magazine cylinder of the CNC machine tool. The extension and retraction of the tool magazine cylinder can drive the tool magazine door driving cylinder to work in advance, ensuring that the tool magazine door is opened before the tool magazine pneumatic extension and retraction, thereby ensuring the normal preparation of the tool. At the same time, there is no need to change the control program of the entire CNC machine tool, and the tool magazine door can be opened before the tool is changed. At the same time, after the tool change is completed, the tool magazine door can also be closed under the action of the resetting component to complete a tool change action, and this can be repeated.

[0018] The opening and closing system of the utility model can not only solve the problems in the prior art that waste chips easily affect the operation of the tool magazine and are difficult to clean up in CNC machine tools that are not equipped with a tool magazine door, but also can add a tool magazine door without changing the entire CNC machine tool control program, and can also ensure that the tool magazine door is opened before the tool magazine cylinder is extended and retracted, thereby achieving the purpose of normal tool preparation, so that the tool magazine door opening and closing system of the utility model can be applied to various CNC machine tools that are not equipped with a tool magazine door.

[0019] Furthermore, the air intake system of the tool magazine cylinder includes a first air pipe and a second air pipe connected to the tool magazine cylinder, and a solenoid valve for controlling air intake of the first air pipe or the second air pipe. The first air pipe is cooperatively connected with the second air pipe and the driving system.

[0020] Further, the drive system comprises a first exhaust valve,

[0021] The first quick exhaust valve includes a first connection port, a second connection port and a third connection port.

[0022] The first connection port is connected to the first air pipe, the second connection port is connected to the first sealed air storage tank, and the third connection port is connected to the inside of the cylinder body of the driving cylinder;

[0023] Among them, the first connecting port and the second connecting port are connected to inflate the first sealed air storage tank, the air pressure in the first connecting port becomes smaller, the second connecting port and the third connecting port are connected, and the gas in the first sealed air storage tank is quickly introduced into the cylinder body of the driving cylinder to move the piston rod of the driving cylinder, thereby driving the tool magazine door to open quickly.

[0024] Furthermore, it also includes a path limiting component, which includes a first one-way valve,

[0025] The third connecting port is communicated with the air inlet end of the first one-way valve, and the air outlet end of the first one-way valve is communicated with the interior of the cylinder body of the driving cylinder.

[0026] Furthermore, it also includes a delay component, which includes an exhaust pipe connected to the cylinder body of the driving cylinder, the exhaust pipe is connected to the outside, and an air regulating valve is provided on the exhaust pipe.

[0027] Furthermore, a tool through hole is provided on the tool magazine door;

[0028] The drive system also includes a second quick exhaust valve and a second one-way valve.

[0029] The second quick exhaust valve includes a fourth connection port, a fifth connection port and a sixth connection port,

[0030] The fourth connection port is in communication with the second air pipe, the fifth connection port is connected to the second sealed air storage tank, the sixth connection port is in communication with the air inlet end of the second one-way valve, and the air outlet end of the second one-way valve is in communication with the interior of the cylinder body of the driving cylinder;

[0031] Among them, the fourth connection port and the fifth connection port are connected to inflate the second sealed air storage tank, the air pressure in the fourth connection port decreases, the fifth connection port and the sixth connection port are connected, and the gas in the second sealed air storage tank is quickly introduced into the cylinder body of the driving cylinder to move the piston rod of the driving cylinder.

[0032] Furthermore, the tool through hole is provided with a baffle plate for use therewith, and the baffle plate is telescopically arranged on one side of the tool magazine door;

[0033] The baffle is connected with a moving plate which moves synchronously with the tool magazine door, and an elastic reset member is arranged between the baffle and the moving plate.

[0034] Furthermore, the reset assembly includes at least one spring telescopic rod, which is fixed to the tool magazine door.

[0035] The length direction of the spring telescopic rod is parallel to the length direction of the piston rod of the driving cylinder, and the driving cylinder drives the tool magazine door to open, and the spring telescopic rod extends or compresses.

[0036] Furthermore, there are two opening and closing mechanisms, both of which are used in conjunction with the air intake system of the tool magazine cylinder, and the two tool magazine doors of the two opening and closing mechanisms move relative to each other or in opposite directions.

[0037] Furthermore, it also includes a mounting plate, a feeding hole is opened on the mounting plate, and a tool magazine door is arranged on the mounting plate. The tool magazine door moves to make the feeding hole conductive or shielded, wherein the driving cylinder is fixed to the mounting plate, and the reset assembly is installed in cooperation with the mounting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a structural schematic diagram of the utility model in a vertical knife-ready state;

[0039] Figure 2 This is a positional relationship diagram of the tool magazine door, baffle plate, and movable plate when the tool cup is embedded in the tool through hole of the utility model;

[0040] Figure 3 This is a pipe structure diagram of the utility model driving system, driving cylinder and tool magazine cylinder air intake system;

[0041] Figure 4 It is a structural schematic diagram of a quick exhaust valve in the prior art.

[0042] In the figure: driving cylinder 1, exhaust pipe 2, air regulating valve 3, first one-way valve 4, first sealed air storage tank 5, first quick exhaust valve 6, second sealed air storage tank 7, second quick exhaust valve 8, second one-way valve 9, first air pipe 10, second air pipe 11, tool magazine cylinder 12, solenoid valve 13, mounting plate 14, feeding through hole 141, tool magazine door 15, compression spring 16, sliding seat 17, sliding rod 18, spring telescopic rod 19, baffle 20, tool through hole 21, telescopic spring 22, positioning seat 23, movable plate 24, connecting seat 25, tool cup 101, tool magazine 102, valve core 60. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0044] like Figure 1 As shown, a tool magazine door opening and closing system is installed in conjunction with any CNC machine tool that is not equipped with a tool magazine door 15, and there is no need to change the control program of the CNC machine tool. The opening and closing system is used in conjunction with the air intake system of the tool magazine cylinder 12. The opening and closing system includes at least one opening and closing mechanism, which includes the tool magazine door 15, the drive cylinder 1, the drive system and the reset component. The opening and closing system utilizes the ventilation (extension and contraction) process of the tool magazine cylinder 12 to achieve rapid opening of the tool magazine door 15.

[0045] To facilitate the description of the positional relationship of each component, such as Figure 1 , 2 As shown, a mounting plate 14 (equivalent to the mounting shell of the CNC machine tool) is provided below the tool magazine 102, and a feeding hole 141 is provided on the mounting plate 14. The tool magazine cylinder 12 that cooperates with the tool magazine 102 can move the tool on the tool magazine 102 from a position perpendicular to the circumferential surface of the tool magazine 102 to a position parallel to the circumferential surface of the tool magazine 102, so that the tool passes through the feeding hole 141 to achieve normal tool preparation. In order to enable the feeding hole 141 to be closed during CNC machine tool processing, a tool magazine door 15 is provided. Correspondingly, the tool magazine door 15 is provided on the mounting plate 14, and the tool magazine door 15 moves to make the feeding hole 141 conductive or shielded, so as to achieve the opening and closing of the tool magazine door 15. In order to facilitate the movement of the tool magazine door 15, the utility model adopts a driving cylinder 1 to drive the tool magazine door 15. To this end, the piston rod of the driving cylinder 1 and the tool magazine door 15 are fixed, and the cylinder barrel of the driving cylinder 1 and the mounting plate 14 are fixed. Then, when the driving cylinder 1 works (extending or retracting), it can drive the tool magazine door 15 to move, thereby realizing the opening of the tool magazine door 15.

[0046] Since each opening and closing mechanism includes only one tool magazine door 15, the number of tool magazine doors 15 can be selected according to the width of the feed hole 141 or the moving distance of the tool magazine door 15. For example, if the width of the feed hole 141 is large, and the opening and closing moving distance of the tool magazine door 15 is small, two tool magazine doors 15 used in conjunction are required to achieve complete closure of the feed hole 141, then two opening and closing mechanisms can be selected. If the width of the feed hole 141 is moderate, and the opening and closing moving distance of the tool magazine door 15 can cover the feed hole 141, then one opening and closing mechanism can be selected. Of course, an even number of opening and closing mechanisms such as four, six, or eight can also be set, and the even number of opening and closing mechanisms can be divided into two groups, A and B. The multiple tool magazine doors 15 in group A are arranged side by side, and the multiple tool magazine doors 15 in group B are arranged side by side and parallel to the multiple tool magazine doors 15 in group A. The multiple tool magazine doors 15 in the two columns move relative to each other or move back to back. When in use, the multiple tool magazine doors 15 move at the same time, and the feeding through hole 141 can also be turned on or off.

[0047] In this embodiment, two opening and closing mechanisms are provided, both of which are used in conjunction with the air intake system of the tool magazine cylinder 12, and the two magazine doors 15 of the two opening and closing mechanisms move relative to each other or move in opposite directions.

[0048] In order to enable the tool magazine door 15 to be opened before the tool magazine cylinder 12 works under the action of the tool magazine cylinder 12, it is necessary to understand the air intake system of the tool magazine cylinder 12 (the connection structure and control principle of the cylinder and the solenoid valve 13 are prior art, and this article only provides basic explanations). Usually, the cylinder barrel of the tool magazine cylinder 12 is connected with the first air pipe 10 and the second air pipe 11. When the first air pipe 10 is inhaled, the air pressure on one side of the cylinder barrel of the tool magazine cylinder 12 increases. At this time, the piston rod of the tool magazine cylinder 12 can be extended or retracted. Similarly, when the second air pipe 11 is inhaled, the air pressure on the other side of the cylinder barrel of the tool magazine cylinder 12 increases. At this time, the piston rod of the tool magazine cylinder 12 can be extended or retracted. It is only necessary to ensure that the air intake of the first air pipe 10 or the second air pipe 11 can achieve the extension of the piston rod of the tool magazine cylinder 12. Whether the first air pipe 10 and the second air pipe 11 are inlet or not is controlled by the solenoid valve 13, and the solenoid valve 13 generally also includes three interfaces, one of which is an air source interface, and the other two interfaces are air outlet interfaces and are respectively connected to the first air pipe 10 and the second air pipe 11. When the solenoid valve 13 is working, the air source can be connected to the first air pipe 10 or to the second air pipe 11 through the switching of internal components, so that the purpose of controlling the extension and retraction of the tool magazine cylinder 12 by one solenoid valve 13 can be achieved.

[0049] On the basis of the air intake system of the tool magazine cylinder 12, the utility model utilizes the air intake system to set up a drive system. Specifically, the drive system includes a first exhaust valve, and the first quick exhaust valve 6 includes a first connection port, a second connection port and a third connection port. The first connection port is connected to the first air pipe 10, the second connection port is connected to the first sealed air storage tank 5, and the third connection port is connected to the inside of the cylinder body of the drive cylinder 1; wherein, the first connection port and the second connection port are connected to inflate the first sealed air storage tank 5, the air pressure in the first connection port becomes smaller, the second connection port and the third connection port are connected, and the gas in the first sealed air storage tank 5 is quickly introduced into the cylinder body of the drive cylinder 1 to move the piston rod of the drive cylinder 1, thereby driving the tool magazine door 15 to open quickly. Figure 4 As shown, the structure of a conventional quick exhaust valve is shown. The quick exhaust valve generally includes three interfaces (interfaces A, B, and C). A valve core 60 is provided inside the quick exhaust valve. The valve core 60 is movable under the action of air pressure to achieve the connection between interface A (equivalent to the first connection port) and interface B (equivalent to the second connection port), or the connection between interface B and interface C (equivalent to the third connection port). The utility model utilizes the fast air-conducting feature of the quick exhaust valve and changes the connection method of the existing quick exhaust valve, so that the quick exhaust valve of the utility model can pre-store gas, and the pre-stored gas can quickly enter the drive cylinder 1 along the passage, and drive the movable rod of the drive cylinder 1 to move before the piston rod of the tool magazine cylinder 12 moves. Specifically, as Figure 3 As shown, when the solenoid valve 13 controls the air source to communicate with the first air pipe 10, the air source enters the first quick exhaust valve 6 along the pipeline. At this time, the first connecting port and the second connecting port are connected to inflate the first sealed air storage tank 5 (the air pressure is P). Assuming that the air pressure of the first connecting port is P1 (P1<P) at this time, when the solenoid valve 13 is switched (at this time, due to the time difference, the air source is neither connected to the first air pipe 10 nor to the second air pipe 11), the air pressure of the first connecting port will decrease from P1 to P0. At this time, the air pressure of the first connecting port will decrease from P1 to P0. The valve core 60 in the quick exhaust valve 6 moves, so that the second connection port and the third connection port are connected. Since the air pressure P in the first sealed air storage tank 5 is greater than the original air pressure (P1) of the first connection port, the gas in the first sealed air storage tank 5 quickly passes through the air pipe and enters the cylinder barrel of the driving cylinder 1. The air pressure change in the cylinder barrel of the driving cylinder 1 drives the piston rod of the driving cylinder 1 to move, and then drives the tool magazine door 15 to move, ensuring that the tool magazine is opened quickly and before the tool A reaches the feeding hole 141, thereby ensuring the purpose of normal tool preparation.

[0050] Since the piston rod of the driving cylinder 1 only performs a single extension or retraction action under pneumatic drive (in the present embodiment, the piston rod of the driving cylinder 1 retracts to drive the tool magazine door 15 to move and open), the resetting of the piston rod of the driving cylinder 1 is achieved under the action of the resetting component. The cylinder barrel of the driving cylinder 1 is ventilated instantaneously, and the air pressure in the cylinder barrel of the driving cylinder 1 increases. In order to enable the resetting component to smoothly reset the driving cylinder 1, and also to enable the driving cylinder 1 to slowly reset under the action of the resetting component to avoid the movement of the tool magazine door 15 affecting the replacement of the tool, the driving cylinder 1 of the utility model also includes a delay component, and the delay component includes an exhaust pipe 2 connected to the cylinder body of the driving cylinder 1, the exhaust pipe 2 is connected to the outside, and the exhaust pipe 2 is provided with an air regulating valve 3. Figure 3 As shown, the exhaust pipe 2 is connected to the cylinder barrel of the driving cylinder 1 and is connected to the air intake side of the cylinder barrel of the driving cylinder 1. The purpose is to allow the air pressure entering the cylinder barrel of the driving cylinder 1 to be relieved, so that the driving cylinder 1 can be used repeatedly and can be reset under the action of the reset component. The air regulating valve 3 arranged on the exhaust pipe 2 is a switch valve used to adjust the reset speed of the driving cylinder 1. By adjusting the exhaust rate or exhaust volume of the exhaust pipe 2, the gas in the cylinder barrel of the driving cylinder 1 can be relieved. At the same time, the exhaust speed can also limit the opening time of the tool magazine door 15 controlled by the driving cylinder 1 to ensure the smooth replacement of the tool.

[0051] Since the closing of the tool magazine door 15 is achieved through a reset assembly, in order to achieve this purpose, the reset assembly of the utility model includes at least one spring telescopic rod 19, one end of the spring telescopic rod 19 is fixed to the tool magazine door 15, and the other end is fixed to the mounting plate 14. The length direction of the spring telescopic rod 19 is parallel to the length direction of the piston rod of the driving cylinder 1, and the driving cylinder 1 drives the tool magazine door 15 to open, and the spring telescopic rod 19 extends or compresses. Assuming that the spring telescopic rod 19 is compressed when the driving cylinder 1 pulls the tool magazine door 15 to open, when the exhaust pipe 2 is depressurized to a level that is not enough to offset the influence of the air pressure in the driving cylinder 1, the driving cylinder 1 will reset to close the tool magazine door 15. The spring telescopic rod 19 can adopt the sleeve rod structure in the prior art, or the structure in this embodiment. Specifically, as Figure 1 As shown, the spring telescopic rod 19 is a sliding rod 18 with a compression spring 16 sleeved thereon, one end of the sliding rod 18 is fixed to the tool magazine door 15, and the other end of the sliding rod 18 is sleeved to the sliding seat 17 fixed on the mounting plate 14, and the compression spring 16 is arranged between the sliding seat 17 and the tool magazine door 15, then when the tool magazine door 15 is opened, the compression spring 16 is deformed, and when the compression spring 16 overcomes the external force and recovers the deformation, it drives the tool magazine door 15 to close, so that the opening and closing of the tool magazine door 15 can be realized by the driving cylinder 1 and the reset assembly. In order to increase the stability of the reset assembly during use, in this embodiment, the number of the spring telescopic rods 19 is two, and the two spring telescopic rods 19 are respectively arranged on both sides of the driving cylinder 1.

[0052] Principle of this embodiment:

[0053] When the tool needs to be changed, the solenoid valve 13 is switched, and under the action of the drive system, the two tool magazine doors 15 move back to back to open the feeding hole 141, and the tool magazine cylinder 12 works to rotate the tool A on the tool magazine 102 to a vertical state, and the tool changing mechanism of the CNC machine tool works to exchange the position of tool A and tool B on the processing mechanism, and the tool magazine cylinder 12 is reset to store tool B in the tool magazine 102, and the tool magazine door 15 is reset under the action of the reset component to complete the tool changing operation.

[0054] The opening and closing system of the utility model can not only solve the problems in the prior art that the waste chips in the CNC machine tools without the tool magazine door 15 are easy to affect the operation of the tool magazine 102 and the waste chips are difficult to clean, but also can add the tool magazine door 15 without changing the entire CNC machine tool control program, and can also ensure that the opening of the tool magazine door 15 is prior to the extension and retraction of the tool magazine cylinder 12, so as to achieve the purpose of normal tool preparation, so that the tool magazine door 15 opening and closing system of the utility model can be applicable to various CNC machine tools without the tool magazine door 15 installed.

[0055] In another embodiment of the present invention:

[0056] In the prior art, since the tool can only be prepared by passing the tool through the opening after the tool magazine door 15 is opened, this process can be understood as the tool preparation process of the prior art can only achieve horizontal tool preparation. The tool can only pass through the opening vertically after the tool magazine door 15 is opened; and during the vertical process of the tool, the processing mechanism (spindle) has stopped processing, and the tool changing mechanism (tool changing robot arm) has been in place; in this process, it is necessary to wait until the tool is vertical before the tool changing mechanism can be operated to change the tool, resulting in a time gap in this process. If this continues for a long time, it will increase the processing time of the entire workpiece. Assuming that the time gap for the tool to be vertically positioned from the tool magazine door 15 is 10 seconds, and the tool needs to be changed 20 times to process a workpiece, it means that the tool change time for a workpiece will be an additional 200 seconds (excluding the tool change time of the tool changing mechanism).

[0057] In order to reduce the tool change time and improve the processing efficiency of the workpiece, the tool in this embodiment can be prepared vertically, which means that the tool A to be processed is in place before the processing mechanism stops processing. To achieve the above purpose, it is necessary to open a through hole for the tool to pass through on the tool magazine door 15. Specifically, a tool through hole 21 is opened on the tool magazine door 15, and the tool through hole 21 is actually used in conjunction with the tool cup 101 of the tool magazine 102 (the component numbered 18 in the patent with patent application number CN202210985765.X). Since the utility model is provided with two tool magazine doors 15, the tool through hole 21 is divided into two and respectively opened on the two tool magazine doors 15. The existence of the tool magazine through hole enables the tool to be prepared vertically. When in use, the solenoid valve 13 is switched, the drive cylinder 1 works to open the tool magazine door 15, and the tool magazine cylinder 12 works to tilt the tool cup 101 with tool A and pass through the feeding through hole 141 to achieve verticality. At this time, the tool magazine door 15 may be closed again under the action of the reset component after being opened. In order to enable the closed tool magazine door 15 to be opened after tool change and before the tool magazine cylinder 12 is actuated, the drive system of the utility model further includes a second quick exhaust valve 8.

[0058] The second quick exhaust valve 8 includes a fourth connection port, a fifth connection port and a sixth connection port, the fourth connection port is connected to the second air pipe 11, the fifth connection port is connected to the second sealed air storage tank 7, and the sixth connection port is connected to the cylinder body of the driving cylinder 1; wherein, the fourth connection port and the fifth connection port are connected to inflate the second sealed air storage tank 7, the air pressure of the fourth connection port becomes smaller, the fifth connection port and the sixth connection port are connected, and the gas in the second sealed air storage tank 7 is quickly introduced into the cylinder body of the driving cylinder 1 to move the piston rod of the driving cylinder 1. Since the tool magazine cylinder 12 pushes out the tool magazine A to be used and also retracts the tool B to be replaced, it means that in the tool changing process of the CNC machine tool, the work of the tool magazine cylinder 12 includes the extension and contraction of the piston rod, and in this process, the tool magazine door 15 needs to be opened. In the process of the tool magazine cylinder 12 extending and retracting, the solenoid valve 13 needs to be switched. For this reason, the second quick exhaust valve 8 is further provided in this embodiment on the basis of the above embodiment, and the use principle of the second quick exhaust valve 8 and the first quick exhaust valve 6 is the same. Due to the existence of the first quick exhaust valve 6 and the second quick exhaust valve 8, as long as the tool magazine cylinder 12 is actuated under the action of the solenoid valve 13, the driving cylinder 1 can be actuated before the tool magazine cylinder 12, thereby ensuring that the tool magazine door 15 can be opened during the ejection and recovery process of the tool magazine cylinder 12 without affecting the passage of the tool slot feeding hole 141.

[0059] In this embodiment, the first quick exhaust valve 6 and the second quick exhaust valve 8 flow through their respective pipelines, and the use of the second quick exhaust valve 8 and the first quick exhaust valve 6 does not affect each other. Similarly, referring to the use principle of the first quick exhaust valve 6, when the second quick exhaust valve 8 is used, when the tool magazine cylinder 12 stores the tool, it is necessary to ensure that the tool magazine door 15 is also opened. For this purpose, a second quick exhaust valve 8 is also provided, and the working principle of the second quick exhaust valve 8 is the same as that of the first quick exhaust valve 6. Because the gas source is connected to the second air pipe 11 before the solenoid valve 13 works, the quick exhaust gas has been pre-stored in the second sealed gas storage tank 7 at this time. When the solenoid valve 13 is switched, the air pressure in the second sealed gas storage tank 7 will quickly enter the cylinder barrel of the driving cylinder 1, ensuring that the piston rod of the driving cylinder 1 moves, avoiding the tool magazine door 15 from being reset under the action of the reset component, and failing to achieve the storage of tool B.

[0060] Since the first quick exhaust valve 6 and the second quick exhaust valve 8 are used in conjunction with the same tool magazine door 15, it is inevitable to use a multi-way connector during the connection process. In order to avoid the chaotic flow of gas, the drive system of the utility model also includes a path limiting component, which includes a first one-way valve 4 and a second one-way valve 9. The third connection port is connected to the air inlet end of the first one-way valve 4, and the air outlet end of the first one-way valve 4 is connected to the inside of the cylinder body of the driving cylinder 1; the sixth connection port is connected to the air inlet end of the second one-way valve 9, and the air outlet end of the second one-way valve 9 is connected to the inside of the cylinder body of the driving cylinder 1. The air outlet ends of the first one-way valve 4 and the second one-way valve 9 are connected to the cylinder barrel of the driving cylinder 1 through a three-way connection, so the use of the first quick exhaust valve 6 and the second quick exhaust valve 8 does not affect each other.

[0061] Since the utility model is provided with two tool magazine doors 15, two three-way valves are respectively provided on the first air pipe 10 and the second air pipe 11 to ensure that the first air pipe 10 can be connected to the two first quick exhaust valves 6 through a pipeline, and the second air pipe 11 can be connected to the two second quick exhaust valves 8 through a pipeline.

[0062] Due to the existence of the first quick exhaust valve 6 and the second quick exhaust valve 8, in conjunction with the setting of the tool through hole 21, it means that the tool magazine cylinder 12 is in motion (the piston rod of the tool magazine cylinder 12 extends or retracts), and the tool magazine door 15 can have an opening and closing action under the action of the drive system and the reset component. In this process, the tool magazine can achieve the purpose of vertical tool preparation. In addition to the part other than the tool through hole 21 that can be blocked by the tool magazine door 15, it can also ensure that waste chips will not enter the inside of the tool magazine door 15 during the vertical tool preparation process.

[0063] This embodiment can realize the principle of vertical knife preparation:

[0064] like Figure 3As shown, when the solenoid valve 13 receives an instruction to prepare the tool, the solenoid valve 13 switches to prepare to drive the tool magazine cylinder 12 to push the tool A at the preset position out of the feeding hole 141; when the solenoid valve 13 switches, the air pressure of the first air pipe 10 becomes low, and the pre-stored gas of the first quick exhaust valve 6 (the gas in the first sealed air storage tank 5) is quickly introduced into the cylinder barrel of the driving cylinder 1 to drive its piston rod to contract, driving the tool magazine door 15 to open; then, the tool magazine cylinder 12 drives the tool A to rotate (the tool A is now clamped in the corresponding tool cup 101, which means that the tool magazine cylinder 12 drives the tool cup 101 with the tool A to rotate together), and makes the tool A pass through the feeding hole 141; the tool magazine door 15 is reset under the action of the reset component, and the feeding hole 141 is closed; the tool cup 101 and the tool A in the tool cup 101 are arranged vertically, and the tool cup 101 is just embedded in the tool through hole 21, so that the tool A can be prepared vertically.

[0065] When tool A is in place vertically, the processing mechanism is processing the workpiece with tool B. When tool B needs to be replaced, the processing mechanism is in place, and after the tool changing mechanism is in place, tool A and tool B are immediately exchanged; tool A is installed on the processing mechanism for use, and tool B is clamped in the tool cup 101; at this time, the solenoid valve 13 needs to be switched to drive the piston rod of the tool magazine cylinder 12 to reset; when the solenoid valve 13 is switched, the air pressure of the second air pipe 11 becomes low, and the pre-stored gas of the second quick exhaust valve 8 (the gas in the second sealed air storage tank 7) is quickly introduced into the cylinder barrel of the drive cylinder 1 to drive its piston rod to contract, driving the tool magazine door 15 to open; the piston rod of the tool magazine cylinder 12 is reset to retract the tool cup 101 with tool B from the vertical state, completing the recovery action of tool B; the tool magazine door 15 continues to reset under the action of the reset component, realizing the closing of the tool magazine door 15, completing a vertical tool preparation and tool changing operation.

[0066] In this embodiment, vertical tool preparation can be achieved, which means that before the processing mechanism stops processing, tool A is already in place vertically. After the processing mechanism stops processing, the tool changing mechanism can work immediately to complete the tool changing operation of tool B and tool A, saving time in the process of changing the tool from horizontal to vertical, so that more tool changing time for each workpiece is saved, improving processing efficiency and reducing production costs.

[0067] During use, in order to avoid the waste chips entering the tool magazine door 15 when the tool A is prepared (the processing mechanism is processing at this time) and the tool magazine door 15 is opened, the control steps of the CNC machine tool can be simply adjusted to prepare the tool A vertically during the movement of the processing mechanism, which can avoid or reduce the waste chips entering the side of the tool magazine door 15. This method of program adjustment of the CNC machine tool does not require additional point control or additional sensors, and is very easy to implement.

[0068] In another embodiment of the present invention:

[0069] Due to the existence of the tool through hole 21, when there is no need to change the tool, if the tool through hole 21 is opened, waste chips and cooling water may also enter the inner side of the tool magazine door 15, affecting the use of the tool magazine 102. To solve this problem, the tool through hole 21 of the utility model is provided with a baffle 20 for use, and the baffle 20 is telescopically arranged on one side of the tool magazine door 15; the baffle 20 is connected to a moving plate 24 that moves synchronously with the tool magazine door 15, and an elastic reset member is provided between the baffle 20 and the moving plate 24. Figure 1 , 2 As shown, since the utility model is provided with two tool magazine doors 15, there are two baffles 20, which are respectively provided on the two tool magazine doors 15, and the two baffles 20 are spliced ​​to cover the tool through hole 21 divided into two. Figure 2 As shown, the movable plate 24 and the tool magazine door 15 are fixed, and the two movable plates 24 are extended outward along the tool magazine door 15 and the other tool magazine door 15. The elastic reset member is a connecting rod with a telescopic spring 22. One end of the connecting rod is fixed to the baffle 20, and the other end of the connecting rod is sleeved on a connecting seat 25 fixed on the mounting plate 14. A positioning seat 23 is fixed on the connecting rod, and the telescopic spring 22 is located between the positioning seat 23 and the baffle 20. When in use, the tool magazine door 15 is opened under the action of the driving cylinder 1, and the movable plate 24 and the baffle 20 move with the tool magazine door 15; when the tool A with the tool cup 101 is vertically in place, the tool magazine door 15 is reset by the action of the reset assembly, and the movable plate 24 and the baffle 20 are reset. At this time, because the tool cup 101 is stuck in the tool through hole 21, the baffle 20 cannot be reset, and the two baffles 20 are stuck on both sides of the tool cup 101. After tool A and tool B exchange positions, tool B needs to be stored in the tool magazine 102. At this time, the tool magazine door 15 is opened under the action of the driving cylinder 1, and the movable plate 24 and the baffle 20 move with the tool magazine door 15. After the tool B with the tool cup 101 is stored in place; the tool magazine door 15 is reset by the action of the reset component, and the movable plate 24 and the baffle 20 are reset. At this time, since there is no tool cup 101 in the tool through hole 21, the baffle 20 completes the reset under the action of the elastic reset member, and blocks the tool through hole 21, thereby preventing waste chips from entering the inside of the tool magazine door 15 from the tool through hole 21.

[0070] It is worth noting that: the utility model Figure 3In the figure, since each component is connected by an air pipe (hose), the air pipe can be bent arbitrarily. In order to facilitate the connection between the various components, the air pipe is represented by a single line, and the width of the air pipe is not drawn, but it does not affect the connection and use between the components. The tool magazine 102 is a turntable in the prior art, that is, a tool placement component of a disc-type tool magazine. The pushing principle of the tool magazine cylinder 12 on the tool can refer to the principle recorded in Patent No. CN202310349507.7. The rotation of the tool is achieved by rotating the tool cup 101. A matching clamping structure is provided in the tool cup 101 to ensure that the tool does not fall off in the tool cup 101.

[0071] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A tool magazine door opening and closing system, characterized in that: Used in conjunction with the air intake system of a tool magazine cylinder (12), the opening and closing system comprises at least one opening and closing mechanism, wherein the opening and closing mechanism comprises a tool magazine door (15), a driving cylinder (1), a driving system and a reset component; The tool magazine door (15) is used in conjunction with the tool magazine cylinder (12) and is set to open and close. The piston rod of the driving cylinder (1) and the tool magazine door (15) are fixed to control the opening of the tool magazine door (15). The driving system is used to connect the air intake system of the tool magazine cylinder (12) and the driving cylinder (1), so that the tool magazine door (15) is opened before the tool magazine cylinder (12) is extended. The reset assembly is connected to the tool magazine door (15) so that the tool magazine door (15) is closed after use.

2. A tool magazine door opening and closing system according to claim 1, characterized in that: The air intake system of the tool magazine cylinder (12) comprises a first air pipe (10) connected to the tool magazine cylinder (12), a second air pipe (11) and an electromagnetic valve (13) for controlling air intake of the first air pipe (10) or the second air pipe (11); the first air pipe (10) is cooperatively connected with the second air pipe (11) and the driving system.

3. A tool magazine door opening and closing system according to claim 2, characterized in that: The drive system includes a first exhaust valve, The first quick exhaust valve (6) comprises a first connection port, a second connection port and a third connection port. The first connection port is in communication with the first air pipe (10), the second connection port is connected to the first sealed air storage tank (5), and the third connection port is in communication with the interior of the cylinder body of the driving cylinder (1); The first connection port and the second connection port are connected to inflate the first sealed gas storage tank (5), the air pressure in the first connection port decreases, the second connection port and the third connection port are connected, and the gas in the first sealed gas storage tank (5) is quickly introduced into the cylinder body of the driving cylinder (1) to move the piston rod of the driving cylinder (1), thereby driving the tool magazine door (15) to open quickly.

4. A tool magazine door opening and closing system according to claim 3, characterized in that: It also includes a path limiting component, which includes a first one-way valve (4), The third connection port is in communication with the air inlet end of the first one-way valve (4), and the air outlet end of the first one-way valve (4) is in communication with the interior of the cylinder body of the driving cylinder (1).

5. A tool magazine door opening and closing system according to claim 4, characterized in that: It also includes a delay component, which includes an exhaust pipe (2) connected to the cylinder body of the driving cylinder (1), the exhaust pipe (2) is connected to the outside, and an air regulating valve (3) is provided on the exhaust pipe (2).

6. A tool magazine door opening and closing system according to claim 3, characterized in that: A tool through hole (21) is provided on the tool magazine door (15); The drive system also includes a second quick exhaust valve (8) and a second one-way valve (9). The second quick exhaust valve (8) comprises a fourth connection port, a fifth connection port and a sixth connection port, The fourth connection port is in communication with the second air pipe (11), the fifth connection port is connected to the second sealed air storage tank (7), the sixth connection port is in communication with the air inlet end of the second one-way valve (9), and the air outlet end of the second one-way valve (9) is in communication with the interior of the cylinder body of the driving cylinder (1); The fourth connection port and the fifth connection port are connected to inflate the second sealed gas storage tank (7), the air pressure at the fourth connection port decreases, the fifth connection port and the sixth connection port are connected, and the gas in the second sealed gas storage tank (7) is quickly introduced into the cylinder body of the driving cylinder (1) to move the piston rod of the driving cylinder (1).

7. A tool magazine door opening and closing system according to claim 6, characterized in that: The tool through hole (21) is provided with a baffle plate (20) for use therewith, and the baffle plate (20) is telescopically arranged on one side of the tool magazine door (15); The baffle plate (20) is connected to a moving plate (24) that moves synchronously with the tool magazine door (15), and an elastic reset member is provided between the baffle plate (20) and the moving plate (24).

8. A tool magazine door opening and closing system according to any one of claims 1 to 7, characterized in that: The reset assembly comprises at least one spring telescopic rod (19), the spring telescopic rod (19) being fixed to the tool magazine door (15). The length direction of the spring telescopic rod (19) is parallel to the length direction of the piston rod of the driving cylinder (1), and the driving cylinder (1) drives the tool magazine door (15) to open, and the spring telescopic rod (19) extends or compresses.

9. A tool magazine door opening and closing system according to any one of claims 1 to 7, characterized in that: There are two opening and closing mechanisms, both of which are used in conjunction with the air intake system of the tool magazine cylinder (12), and the two tool magazine doors (15) of the two opening and closing mechanisms move relative to each other or move in opposite directions.

10. A tool magazine door opening and closing system according to any one of claims 1 to 7, characterized in that: The utility model also comprises a mounting plate (14), a feeding through hole (141) is provided on the mounting plate (14), a tool magazine door (15) is arranged on the mounting plate (14), and the tool magazine door (15) moves to make the feeding through hole (141) conductive or shielded, wherein the driving cylinder (1) is fixed to the mounting plate (14), and the reset assembly is installed in cooperation with the mounting plate (14).

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