Anti-collision protection device

Abstract

The present invention discloses an anti-collision protection device, which includes a collision plate, a terminal post, an insulating post, a cover plate, a plug and a circuit board; the collision plate is provided with a smooth side and a through-hole side, the plug is provided on the smooth side of the collision plate, the terminal post, the insulating post and the cover plate are provided on the through-hole side of the collision plate; the insulating post is provided with a terminal post, and the outer side of the insulating post is provided with a cover plate. The collision protection device disclosed by the present invention is designed with a current on-off circuit protection device under the optical path. Once a device fails and the optical path is blocked, the moving shaft continues to move downward and collides with the collision plate of the protection device. The circuit in the collision plate will be cut off, generating a power-off signal to feed back to the device. The device stops suddenly after receiving the signal, thereby protecting the device from collision damage.

Description

Technical Field

[0001] The invention relates to the fields of machine tool application and sensor technology, and in particular to an anti-collision protection device. Background Art

[0002] Machine tools are also called mother machines or machine tools. Laser tool setting instruments are a commonly used automatic tool setting device for machine tools. They are mainly used for tool measurement and damage detection in high-end machining centers. The tool setting process can be simply described as: the tool being measured gradually moves toward the tool setting instrument optical path position along the moving axis at a slower speed. When the optical path is blocked, the current position is recorded and converted into the tool length or diameter through an algorithm. During tool setting, if the moving axis still moves forward after the tool setting instrument optical path is blocked due to equipment failure or tool setting instrument failure, the tool setting instrument will collide with the servo axis. In the worst case, the servo axis will be damaged and can no longer maintain the original accuracy, or even cause the tool setting instrument to be scrapped. Because of its high precision and high price, it will cause great losses once damaged. However, in the prior art, commonly used machine tools do not have collision protection devices. Therefore, an anti-collision protection device is needed. Summary of the invention

[0003] The invention provides an anti-collision protection device to solve the problem of collision of a tool setting instrument during the tool setting process.

[0004] In order to achieve the above object, the technical solution of the present invention is:

[0005] An anti-collision protection device, characterized in that the collision protection device includes a collision plate, a terminal post, an insulating post, a cover plate and a plug; the collision plate is provided with a smooth side and a through-hole side, the plug is arranged on the smooth side of the collision plate, and the terminal post, the insulating post and the cover plate are arranged on the through-hole side of the collision plate; the terminal post is arranged on the insulating post, and the cover plate is arranged on the outer side of the insulating post; when the equipment collides with the collision plate, a signal is fed back to the equipment control system, and the equipment control system automatically stops in an emergency.

[0006] Furthermore, the collision plate includes a wire, a through hole, a terminal and a circuit board. The through hole side of the collision plate is provided with a plurality of through holes, and the circuit board is single-phase on and off. The wire is arranged along the edge of the circuit board; an electrical connector is provided on both sides of the circuit board.

[0007] Furthermore, the collision plate is also provided with a protective cover, a groove is provided in the protective cover, and a plurality of protrusions are provided on the protective cover, and the protrusions cooperate with the through holes.

[0008] Furthermore, a terminal is provided on the through hole side of the collision plate, one end of the terminal is fixed on the through hole side of the collision plate, and the other end is opened in a clamp shape to clamp the terminal.

[0009] Furthermore, a cavity is provided in the insulating column, and a wire is provided in the cavity.

[0010] Furthermore, the collision protection device is also provided with a through hole, and the wire passes through the through hole.

[0011] Furthermore, a sealing ring is provided between the cover plate and the insulating column.

[0012] Furthermore, the plug iron has a wedge-shaped structure, and the length of the upper end of the plug iron and the smooth side of the collision plate is greater than the length of the lower end.

[0013] The present invention discloses a collision protection device. By designing a protection device with a current on-off circuit under the optical path, once a device fails and the optical path is blocked, the moving axis continues to move downward and collides with the collision plate of the protection device. The circuit in the collision plate will be cut off, generating a power-off signal to feed back to the device. After receiving the signal, the device stops suddenly, protecting the device from collision damage. In addition, the collision protection device is connected to the machine tool through a wire, and can quickly and reliably feed back the signal to the machine tool system, effectively avoiding collision with the servo axis and damage, and playing a good anti-collision protection role. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 It is a cross-sectional view of the anti-collision protection device of the present invention;

[0016] Figure 2 This is a front view of the anti-collision protection device of the present invention;

[0017] Figure 3 It is a left sectional view of the anti-collision protection device of the present invention;

[0018] Figure 4 This is an installation view of the anti-collision protection device of the present invention;

[0019] Figure 5 This is a schematic diagram of the structure of the anti-collision protection device of the present invention;

[0020] Figure 6 This is a schematic diagram of the structure of the anti-collision protection device of the present invention installed on a machine tool;

[0021] Figure 7 It is a schematic structural diagram of the protective cover of the anti-collision protection device of the present invention.

[0022] In the figure, 1. tool setting instrument body, 2. collision plate, 3. terminal, 4. insulating column, 5. cover plate, 6. sealing ring, 7. through hole, 8. wire, 9. plug, 10. protective cover, 11. cavity, 12. through hole, 13. terminal, 14. circuit board, 15. tool, 16. optical path, 17. groove, and 18. protrusion. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] like Figure 1-7 The anti-collision protection device is shown, and the collision protection device includes a collision plate 2, a terminal 3, an insulating column 4, a cover plate 5 and a plug iron 9; the collision plate 2 is provided with a smooth side and a through-hole side, the plug iron 9 is arranged on the smooth side of the collision plate 2, and the terminal 3, the insulating column 4 and the cover plate 5 are arranged on the through-hole side of the collision plate 2; the terminal 3 is arranged on the insulating column 4, and the cover plate 5 is arranged on the outer side of the insulating column 4; when the device collides with the collision plate, the signal is fed back to the device control system, and the device control system automatically stops. Furthermore, a sealing ring 6 is provided between the cover plate 5 and the insulating column 4. In this embodiment, preferably, the anti-collision protection device is applied to a machine tool with a laser tool setting instrument. When installing the collision protection device, the collision plate 2 is inserted as a whole from the top of the terminal 3, and then the plug iron 9 is inserted into the smooth side of the collision plate 2, and the collision plate 2 is fixed by screwing.

[0025] Furthermore, the collision plate 2 includes a wire 8, a through hole 12, a terminal 13 and a circuit board 14. The through hole side of the collision plate 2 is provided with a plurality of through holes 12, and the circuit board 14 is single-phase on and off. The wire 8 is arranged along the edge of the circuit board 14; an electrical connector is provided on both sides of the circuit board 14. Furthermore, the collision plate 2 is also provided with a protective cover 10, and a groove 17 is provided in the protective cover 10. There are also a plurality of protrusions 18 on the protective cover 10, and the protrusions 18 cooperate with the through holes 12 on the circuit board 14. Figure 1-4As shown, in this embodiment, preferably, the collision plate 2 is assembled into a whole through the wire 8, the protective cover 10, the through hole 12, the terminal 13 and the circuit board 14. The specific installation process of the collision plate 2 is: first, the cover plate 5 and the sealing ring 6 are pressed into the tool setting instrument body 1, and the wire 8 is welded to the lower part of the terminal 3, and then the wire 8 passes through the insulating column 4 from the cavity 11 of the insulating column 4, and then passes through the through hole 7 and plugs into the power plug, wherein the terminal 3 and the insulating column 4 are fixed by the sealant. After the circuit board 14 and the terminal 13 are welded, the protective cover 10 is inserted through the pre-reserved through hole 12 and fixed by glue, and then the installation of the collision plate 2 is completed. Among them, the circuit board 14 adopts a single-line on-off, and the circuit board 14 adopts a board with a connection hole for double-layer crimping, and the wires in the circuit board are encapsulated in the boards on both sides to avoid problems such as short circuits during contact; after the boards on both sides are welded, the surfaces exposed to the outside are glued to prevent short circuits; the connection holes on the boards match the protective cover 10. The conductor 8 is arranged along the edge of the circuit board 14, so that the circuit board can be quickly disconnected when a collision occurs, and the signal is fed back to the machine tool, so that the machine tool control system sends a signal to stop the machine tool urgently; welding holes for electrical connectors are reserved on both sides of the circuit board 14 to facilitate the connection of the anti-collision protection device to the power supply. Figure 7 As shown, in this embodiment, the groove 17 is in the shape of an arch, and the protective cover 10 is arranged above the terminal post 3 and the insulating post 4. On the one hand, it can protect the terminal post 3 and the insulating post 4 from being damaged when the collision plate 2 is collided, and on the other hand, it can reduce the dust falling into the terminal post 3 and the insulating post 4.

[0026] Furthermore, a terminal 13 is further provided on the through hole side of the collision plate 2, one end of the terminal 13 is welded on the through hole side of the collision plate 2, and the other end is opened in a clip shape to clamp the terminal 3. In this embodiment, when the terminal 13 is inserted into the terminal 13, the clamp of the terminal 13 opens to hold the terminal 3 and fix the terminal 13.

[0027] Furthermore, a cavity 11 is provided in the insulating column 4, and the wire 8 passes through the cavity 11. Furthermore, the collision protection device is also provided with a through hole 7, and the wire 8 passes through the through hole 7. In this embodiment, the wire passes through the through hole 7 and the cavity 11 of the insulating column 4 from bottom to top, and then is connected to the terminal 3, and finally connected to the circuit board 14 in the collision plate 2, and finally connected to an external power supply. Among them, passing the wire 8 through the through hole 7 can not only protect the wire 8, reduce the leakage of the wire, and make the inner cavity wiring of the tool setting instrument more simple and beautiful, but also effectively avoid the damage to the collision protection device caused by external interference and scratches.

[0028] Furthermore, the plug iron 9 is wedge-shaped, and the length of the upper end of the plug iron and the smooth side of the collision plate 2 is greater than the length of the lower end. In this embodiment, the plug iron 9 is designed as a wedge-shaped structure to facilitate clamping the collision plate 2.

[0029] like Figure 5 and 6 As shown, under normal tool setting, the tool 15 rotates and gradually moves downward at a given speed until the optical path 16 is blocked, and the moving axis stops moving and records the current coordinate value. When the equipment fails and normal tool setting cannot be performed, the moving axis will not stop moving after the optical path 16 is blocked. The tool will continue to move downward and will collide with the collision plate and damage the collision plate. The circuit inside the collision plate will be cut off, and the highest emergency stop command will be directly issued to the servo axis. The machine tool will force the tool to terminate the operation and protect the entire system of the servo axis, tool setting instrument and tool. The collision protection work is completed. After completing the collision protection, the damaged collision plate is replaced. Since the terminal 3 and the insulating column 4 in the collision protection device are not damaged, only the collision plate needs to be replaced. The screws on the plug are loosened, the damaged collision plate is pulled out, and a new collision plate is installed to complete the replacement of the collision plate.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An anti-collision protection device, characterized in that: The collision protection device comprises a collision plate (2), a terminal post (3), an insulating post (4), a cover plate (5) and a plug iron (9); the collision plate (2) is provided with a smooth side and a through hole side, the plug iron (9) is arranged on the smooth side of the collision plate (2), the terminal post (3), the insulating post (4) and the cover plate (5) are arranged on the through hole side of the collision plate (2); the terminal post (3) is arranged on the insulating post (4), and the cover plate (5) is arranged on the outer side of the insulating post (4); when the device collides with the collision plate, a signal is fed back to the device control system, and the device control system automatically stops in an emergency; The collision plate (2) comprises a wire (8), a through hole (12), a terminal (13) and a circuit board (14); a plurality of through holes (12) are provided on the through hole side of the collision plate (2); the circuit board (14) is single-phase on-off; the wire (8) is arranged along the edge of the circuit board (14); and an electrical connector is provided on both sides of the circuit board (14); The through hole side of the collision plate (2) is also provided with a terminal (13), one end of the terminal (13) is fixed on the through hole side of the collision plate (2), and the other end is opened in a clamp shape to clamp the terminal (3).

2. The anti-collision protection device according to claim 1, characterized in that: The collision plate (2) is also provided with a protective cover (10), a groove (17) is provided in the protective cover (10), and a plurality of protrusions (18) are provided on the protective cover (10), and the protrusions (18) are matched with the through holes (12).

3. The anti-collision protection device according to claim 1, characterized in that: A cavity (11) is provided in the insulating column (4), and a conductor (8) is provided in the cavity (11).

4. The anti-collision protection device according to claim 1, characterized in that: The collision protection device is also provided with a through hole (7), and a wire (8) passes through the through hole (7).

5. The anti-collision protection device according to claim 1, characterized in that: A sealing ring (6) is provided between the cover plate (5) and the insulating column (4).

6. The anti-collision protection device according to claim 1, characterized in that: The plug iron (9) is in a wedge-shaped structure, and the length of the upper end of the plug iron and the smooth side of the collision plate (2) is greater than the length of the lower end.

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