Novel pneumatic automatic opening and closing device for protective sliding door

Abstract

The utility model relates to the technical field of numerical control machine tools, in particular to a novel pneumatic automatic opening and closing device for a protective sliding door, which comprises an air source processing triplet, a throttle valve is fixedly connected to the side face of the air source processing triplet, a two-position five-way electromagnetic slide valve is fixedly connected to the side face of the throttle valve, and a silencer is fixedly connected to the bottom of the two-position five-way electromagnetic slide valve. By arranging the first magnetic coupling rodless cylinder and the second magnetic coupling rodless cylinder, the piston and the cylinder are not mechanically connected, the sealing performance is excellent, the action of the piston is transmitted to an external sliding block through magnetic coupling, a piston rod is not needed, the installation space is smaller than that of a common space, and the maximum stroke is larger than that of the common cylinder; the adjustable buffering and fixed buffering devices are arranged at the two ends of the air cylinder, reversing action is stable without impact, meanwhile, mechanical damage is avoided, a piston cavity is separated from a sliding block cavity, dust and dirt are prevented from entering a system, the service life of the air cylinder is prolonged, and the device is easy to manufacture, compact in structure, convenient to use, easy to install, low in cost and high in automation degree.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machine tools, in particular to a novel pneumatic automatic switch device for a protective sliding door. Background Art

[0002] At present, the existing CNC machine tool protective door generally adopts a four-sliding door or six-sliding door structure, that is, two or three linkage sliding doors are set on both sides of the CNC machine tool protective cover, and the sliding doors are opened manually. This CNC machine tool manual opening and closing door structure cannot meet the requirements of automatic loading and unloading of workpieces and automatic processing during processing and use, and has great limitations in actual processing and use. In view of the above defects, it is necessary to improve the existing CNC machine tool sliding door structure to realize the automatic opening and closing of the sliding door. Utility Model Content

[0003] The purpose of the utility model is to provide a novel pneumatic automatic opening and closing device for protective sliding doors, so as to solve the problem that the manual opening and closing door structure of CNC machine tools proposed in the above-mentioned background technology cannot meet the requirements of automatic loading and unloading operations and automatic processing of workpieces during processing and use, and has great limitations in actual processing and use.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A novel pneumatic automatic switch device for protective sliding doors comprises an air source processing triplet, a throttle valve is fixedly connected to the side of the air source processing triplet, a two-position five-way electromagnetic slide valve is fixedly connected to the side of the throttle valve, a muffler is fixedly connected to the bottom of the two-position five-way electromagnetic slide valve, a fifth pneumatic joint and a sixth pneumatic joint are respectively fixedly connected to the top of the two-position five-way electromagnetic slide valve, a first pneumatic joint and a second pneumatic joint are respectively fixedly connected to the sides of the fifth pneumatic joint, a first magnetically coupled rodless cylinder and a second magnetically coupled rodless cylinder are respectively fixedly connected to the sides of the first pneumatic joint and the second pneumatic joint, and a first proximity switch and a second proximity switch are respectively fixedly connected to the bottoms of the first pneumatic joint and the second pneumatic joint.

[0006] As a preferred solution of the utility model, the bottoms of the first magnetically coupled rodless cylinder and the second magnetically coupled rodless cylinder are respectively provided with a left sliding door and a right sliding door.

[0007] As a preferred solution of the utility model, the tops of the left sliding door and the right sliding door are respectively fixedly connected with a first connecting plate and a second connecting plate, and the tops of the first connecting plate and the second connecting plate are respectively fixedly connected to the cylinder magnetic blocks of the first magnetically coupled rodless cylinder and the second magnetically coupled rodless cylinder.

[0008] As a preferred solution of the utility model, a fourth proximity switch is fixedly connected to the top of the left sliding door, and a third proximity switch is fixedly connected to the top of the right sliding door.

[0009] As a preferred solution of the utility model, the fourth proximity switch is arranged on the side of the first connecting plate, and the third proximity switch is arranged on the side of the second connecting plate.

[0010] As a preferred solution of the utility model, the side ends of the first magnetically coupled rodless cylinder and the second magnetically coupled rodless cylinder are respectively fixedly connected with a third pneumatic joint and a fourth pneumatic joint, and the third pneumatic joint and the fourth pneumatic joint are respectively fixedly connected with the sixth pneumatic joint.

[0011] As a preferred solution of the utility model, the left sliding door and the right sliding door are positioned opposite to each other, and the sizes of the left sliding door and the right sliding door are the same.

[0012] As a preferred solution of the present utility model, the first proximity switch, the third proximity switch, the fourth proximity switch and the second proximity switch are of the same model.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. In the utility model, by setting the first magnetic coupling rodless cylinder and the second magnetic coupling rodless cylinder, there is no mechanical connection between the piston and the cylinder, the sealing performance is excellent, the action of the piston is transmitted to the external slider through magnetic coupling, no piston rod is required, the installation space is less than the ordinary space, the maximum stroke is larger than the ordinary cylinder, the cylinder has adjustable buffer and fixed buffer devices at both ends, the reversing action is smooth and impact-free, and mechanical damage is avoided at the same time, the piston cavity is separated from the slider cavity to prevent dust and dirt from entering the system, and the service life of the cylinder is extended, and the device is simple to manufacture, compact in structure, easy to use, easy to install, low in cost, and high in automation, and is suitable for promotion and use within CNC machine tool manufacturers.

[0015] 2. In the utility model, after the compressed air is processed by the air source processing triplet (air filter, pressure reducing valve, oil mist collector), it passes through the throttle valve and the two-position five-way solenoid valve and enters the rodless cylinder to provide power to the rodless cylinder. The sliding door movement speed is adjusted by the throttle valve.

[0016] 3. In the utility model, after the CNC system issues an opening command, the coil on one side of the two-position five-way solenoid valve is energized, and compressed air enters the inner side of the two rodless cylinders. The cylinder slider is pushed to drive the left and right sliding doors to move to both sides through the connecting plate, and the sliding doors are opened. When the sliding doors move to the maximum opening position and approach the proximity switch, the proximity switch sends a signal, the two-position five-way solenoid valve coil loses power, the cylinder stops moving, and the sliding doors are fully opened. After the protective sliding doors are opened, the tool and the workpiece can be fully exposed, and there is no dead angle for loading and unloading the workpiece and the tool.

[0017] 4. In the utility model, after the numerical control system issues a closing command, the coil on the other side of the two-position five-way solenoid valve is energized, and compressed air enters the outside of the two rodless cylinders, pushing the cylinder sliders to drive the left and right sliding doors to move inward through the connecting plates to close the sliding doors. When the sliding doors move to the closed position and approach the proximity switch, the proximity switch sends a signal, the two-position five-way solenoid valve coil loses power, the cylinder stops moving, and the sliding doors close. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a pneumatic system diagram of the utility model;

[0019] Figure 2 This is the automatic switch structure diagram of the protective door of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the first connecting plate and the second connecting plate of the utility model;

[0021] Figure 4 It is a structural schematic diagram of the first pneumatic joint and the first magnetically coupled rodless cylinder of the utility model.

[0022] In the figure: 1. first pneumatic joint; 2. first magnetically coupled rodless cylinder; 3. first connecting plate; 4. third pneumatic joint; 5. fourth pneumatic joint; 6. second magnetically coupled rodless cylinder; 7. second connecting plate; 8. second pneumatic joint; 9. first proximity switch; 10. right sliding door; 11. third proximity switch; 12. fourth proximity switch; 13. left sliding door; 14. second proximity switch; 15. air source processing triplet; 16. throttle valve; 17. muffler; 18. two-position five-way electromagnetic slide valve; 19. fifth pneumatic joint; 20. sixth pneumatic joint. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0024] For examples, see Figure 1-4 , the utility model provides a technical solution:

[0025] A novel pneumatic automatic switch device for protective sliding doors includes an air source processing triplet 15, a throttle valve 16 is fixedly connected to the side of the air source processing triplet 15, a two-position five-way electromagnetic slide valve 18 is fixedly connected to the side of the throttle valve 16, a muffler 17 is fixedly connected to the bottom of the two-position five-way electromagnetic slide valve 18, a fifth pneumatic connector 19 and a sixth pneumatic connector 20 are fixedly connected to the top of the two-position five-way electromagnetic slide valve 18, a first pneumatic connector 1 and a second pneumatic connector 8 are fixedly connected to the sides of the fifth pneumatic connector 19, a first magnetically coupled rodless cylinder 2 and a second magnetically coupled rodless cylinder 6 are fixedly connected to the sides of the first pneumatic connector 1 and the second pneumatic connector 8, and a first proximity switch 9 and a second proximity switch 14 are fixedly connected to the bottom of the first pneumatic connector 1 and the second pneumatic connector 8.

[0026] In this embodiment, Figure 2 and Figure 3 As shown, the bottoms of the first magnetically coupled rodless cylinder 2 and the second magnetically coupled rodless cylinder 6 are respectively provided with a left sliding door 13 and a right sliding door 10, the tops of the left sliding door 13 and the right sliding door 10 are respectively fixedly connected with a first connecting plate 3 and a second connecting plate 7, the tops of the first connecting plate 3 and the second connecting plate 7 are respectively fixedly connected to the cylinder magnetic blocks of the first magnetically coupled rodless cylinder 2 and the second magnetically coupled rodless cylinder 6, the top of the left sliding door 13 is fixedly connected with a fourth proximity switch 12, and the top of the right sliding door 10 is fixedly connected with a third proximity switch 11.

[0027] Among them, there is no mechanical connection between the piston and the cylinder of the first magnetically coupled rodless cylinder 2 and the second magnetically coupled rodless cylinder 6, and the sealing performance is excellent. The movement of the piston is transmitted to the external slider through magnetic coupling, and no piston rod is required. The installation space is smaller than the ordinary space, and the maximum stroke is larger than the ordinary cylinder. The cylinders are provided with adjustable buffers and fixed buffers at both ends. The reversing action is smooth and impact-free, and mechanical damage is avoided at the same time. The piston cavity is separated from the slider cavity to prevent dust and dirt from entering the system, thereby extending the service life of the cylinder. In addition, the device is simple to manufacture, compact in structure, easy to use, easy to install, low in cost, and highly automated.

[0028] In this embodiment, Figure 1 and Figure 4 As shown, the fourth proximity switch 12 is arranged on the side of the first connecting plate 3, the third proximity switch 11 is arranged on the side of the second connecting plate 7, the side ends of the first magnetically coupled rodless cylinder 2 and the second magnetically coupled rodless cylinder 6 are respectively fixedly connected with the third pneumatic joint 4 and the fourth pneumatic joint 5, the third pneumatic joint 4 and the fourth pneumatic joint 5 are respectively fixedly connected with the sixth pneumatic joint 20, the left sliding door 13 and the right sliding door 10 are positioned opposite to each other, the sizes of the left sliding door 13 and the right sliding door 10 are the same, and the models of the first proximity switch 9, the third proximity switch 11, the fourth proximity switch 12, and the second proximity switch 14 are all the same.

[0029] Among them, the compressed air is processed by the air source processing triplet (air filter, pressure reducing valve, oil mist collector), and then enters the rodless cylinder after passing through the throttle valve 16 and the two-position five-way electromagnetic slide valve 18 to provide power to the rodless cylinder. The sliding door movement speed is adjusted by the throttle valve 16.

[0030] The working process of the utility model is as follows: when the new type of pneumatic automatic switch device for protective sliding doors designed by the present invention is working, in the automatic mode, after the numerical control system issues an opening command, the coil on one side of the two-position five-way electromagnetic slide valve 18 is energized, and compressed air enters the inner side of the two rodless cylinders, pushing the cylinder sliders through the first connecting plate 3 and the second connecting plate 7 to drive the left sliding door 13 and the right sliding door 10 to move to both sides, and open the sliding door. When the sliding door moves to the maximum opening position and approaches the proximity switch, the proximity switch sends a signal, the coil of the two-position five-way electromagnetic slide valve 18 loses power, the cylinder stops moving, and the sliding door is fully opened. After the protective sliding door is opened, the tool and The workpiece is completely exposed, and there is no dead angle for loading and unloading the workpiece and the tool. After the CNC system issues a closing command, the coil on the other side of the two-position five-way electromagnetic slide valve 18 is energized, and compressed air enters the outside of the two rodless cylinders, pushing the cylinder sliders through the first connecting plate 3 and the second connecting plate 7 to drive the left sliding door 13 and the right sliding door 10 to move inward and close the sliding door. When the sliding door moves to the closed position and approaches the proximity switch, the proximity switch sends a signal, the two-position five-way electromagnetic slide valve 18 coil loses power, the cylinder stops moving, the sliding door closes, and the workpiece begins to be processed. When the manual door opening and closing button is used, the automatic mode stops running, and the sliding door is opened or closed manually.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel pneumatic automatic switch device for protective sliding doors, comprising an air source processing triplet (15), characterized in that: The side of the air source processing triplet (15) is fixedly connected to a throttle valve (16), the side of the throttle valve (16) is fixedly connected to a two-position five-way electromagnetic slide valve (18), the bottom of the two-position five-way electromagnetic slide valve (18) is fixedly connected to a muffler (17), the top of the two-position five-way electromagnetic slide valve (18) is respectively fixedly connected to a fifth pneumatic joint (19) and a sixth pneumatic joint (20), the side of the fifth pneumatic joint (19) is respectively fixedly connected to a first pneumatic joint (1) and a second pneumatic joint (8), the sides of the first pneumatic joint (1) and the second pneumatic joint (8) are respectively fixedly connected to a first magnetically coupled rodless cylinder (2) and a second magnetically coupled rodless cylinder (6), and the bottoms of the first pneumatic joint (1) and the second pneumatic joint (8) are respectively fixedly connected to a first proximity switch (9) and a second proximity switch (14).

2. According to claim 1, a novel pneumatic automatic switch device for protective sliding doors is characterized in that: A left sliding door (13) and a right sliding door (10) are respectively arranged at the bottom of the first magnetically coupled rodless cylinder (2) and the second magnetically coupled rodless cylinder (6).

3. According to claim 2, the novel pneumatic automatic switch device for protective sliding doors is characterized in that: The tops of the left sliding door (13) and the right sliding door (10) are respectively fixedly connected to a first connecting plate (3) and a second connecting plate (7), and the tops of the first connecting plate (3) and the second connecting plate (7) are respectively fixedly connected to the cylinder magnetic blocks of the first magnetically coupled rodless cylinder (2) and the second magnetically coupled rodless cylinder (6).

4. A novel pneumatic automatic opening and closing device for protective sliding doors according to claim 2, characterized in that: A fourth proximity switch (12) is fixedly connected to the top of the left sliding door (13), and a third proximity switch (11) is fixedly connected to the top of the right sliding door (10).

5. According to claim 4, the novel pneumatic automatic switch device for protective sliding door is characterized in that: The fourth proximity switch (12) is arranged on a side surface of the first connecting plate (3), and the third proximity switch (11) is arranged on a side surface of the second connecting plate (7).

6. According to claim 1, the novel pneumatic automatic switch device for protective sliding door is characterized in that: The side ends of the first magnetically coupled rodless cylinder (2) and the second magnetically coupled rodless cylinder (6) are respectively fixedly connected to a third pneumatic joint (4) and a fourth pneumatic joint (5), and the third pneumatic joint (4) and the fourth pneumatic joint (5) are respectively fixedly connected to a sixth pneumatic joint (20).

7. The novel pneumatic automatic opening and closing device for protective sliding doors according to claim 2 is characterized in that: The left sliding door (13) and the right sliding door (10) are located opposite to each other, and the sizes of the left sliding door (13) and the right sliding door (10) are the same.

8. According to claim 1, the novel pneumatic automatic switch device for protective sliding door is characterized in that: The first proximity switch (9), the third proximity switch (11), the fourth proximity switch (12), and the second proximity switch (14) are all of the same model.

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