Safety protection fixing device of numerical control grinding machine

Abstract

The utility model discloses a safety protection fixing device of a numerical control grinding machine, and relates to the technical field of safety protection. The safety protection fixing device of the numerical control grinding machine comprises a numerical control grinding machine body, a protective cover is fixedly connected to a bottom plate, a door is hinged to the protective cover, a fixing mechanism is arranged in the door and comprises an air pressure pipe, the air pressure pipe is in sliding connection with an iron block, the air pressure pipe is in sliding connection with a handle, and the iron block is connected with the handle. An iron core is fixedly connected into the inner wall of the protective cover, and a control wire of the numerical control grinding machine body is fixedly connected to the outer wall of the iron core. According to the safety protection fixing device of the numerical control grinding machine, an iron core is changed into an electromagnet by starting an equipment power supply, so that an iron block is attracted, and the iron block is attracted by the electromagnet to drive a handle to move towards the interior of a door under the action of air pressure while the door is closed; therefore, the effect of preventing a worker from opening the door of the protective cover of the started numerical control grinding machine body by mistake is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of safety protection, in particular to a safety protection fixing device for a numerically controlled grinding machine. Background Art

[0002] A CNC grinder is a machine tool that uses computer numerical control technology to control the grinding operation. It combines the grinding capabilities of a grinder with the precise control of a computer numerical control system to achieve precision grinding of workpieces.

[0003] At present, most of the existing safety protection devices for CNC grinders use a protective cover to provide safety protection for CNC grinders. For example, a CNC grinder protection device disclosed in publication number CN208826360U includes a grinder body, a protective cover and a dust collector. The left and right ends of the grinder body are provided with holes, and the holes are connected to the fixed block by a clamping block. The fixed block is provided with a groove at one end opposite to the clamping block, and a rotating shaft is connected through the inside of the fixed block from front to back. The protective cover is connected to the groove by a clamping block, and the inside of the connecting block is also connected by a rotating shaft. The inner wall of the protective cover is provided with a waste chip collection port, and the upper end of the protective cover passes through the second connecting pipe and is communicated with the waste chip collection port. The vacuum cleaner is connected to the second connecting pipe through the first connecting pipe, and the vacuum cleaner is installed and fixed to the upper end surface of the protective cover on the right side by bolts. The above application document is connected by a connecting block and a groove for card slot connection, which can fix the protective cover when the CNC grinder is working to achieve a safety protection effect on the CNC grinder. However, in actual use, if there is a danger in the protective cover, it cannot be handled in time. Therefore, a safety protection fixing device for a CNC grinder is needed. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a safety protection fixing device for a CNC grinder, which solves the problems raised in the above background technology. To achieve the above purpose, the utility model is implemented through the following technical solutions: a safety protection fixing device for a CNC grinder, comprising a CNC grinder body, a bottom plate fixedly connected to the bottom of the CNC grinder body, a protective cover fixedly connected to the bottom plate, a door hinged to the protective cover, a fixing mechanism arranged inside the door, an opening device arranged inside the protective cover, the fixing mechanism comprising an air pressure tube, the air pressure tube is arranged in the inner wall of the door, an iron block is slidably connected to one end of the air pressure tube away from the hinge point between the door and the protective cover, the iron block is elastically connected to the inner wall of the air pressure tube through a tension spring, a handle is slidably connected to one end of the air pressure tube away from the iron block, the handle passes through the inner wall of the door, an iron core is fixedly connected to the inner wall of the protective cover, and the control wires of the CNC grinder body are fixedly connected to the outer wall of the iron core.

[0005] Preferably, the opening device includes an air pressure chamber, which is opened in the inner wall of the protective cover, the air pressure chamber is connected to an airbag, a slide is slidably connected to the inner wall of the air pressure chamber, and an inclined block is slidably connected to the inner wall of the protective cover.

[0006] Preferably, the shape of the handle is a flat object that fits tightly against the inner wall of the air pressure tube and is connected to a cylinder. By setting the shape of the handle, it is ensured that there is no air leakage between the handle and the air pressure tube while making it convenient for the staff to control the opening of the door through the handle.

[0007] Preferably, when the iron block is on the side of the air pressure tube closest to the iron core, the end of the handle is flush with the outer wall of the door. By setting the length of the handle, it is ensured that when the iron block moves to the position closest to the iron core, the staff cannot open the door through the handle, thereby achieving the effect of preventing accidental opening.

[0008] Preferably, the shape of the inclined block is a triangular block connected to a rectangular slide. By setting the shape of the inclined block, the inclined block can push the door to rotate and move under the push of the slide, thereby achieving the expected effect.

[0009] Preferably, the airbag is arranged on the outer wall of the protective cover near the lower side, and a baffle is arranged above the airbag. By setting the position of the airbag and the baffle, it is ensured that the airbag is not easily touched by mistake when the CNC grinder body is working normally.

[0010] The utility model provides a safety protection fixing device for a CNC grinding machine. It has the following beneficial effects:

[0011] (1) The utility model sets a fixing mechanism and turns the iron core into an electromagnet by starting the power supply of the equipment, thereby attracting the iron block. The iron block is attracted by the electromagnet, so that the door is closed and the handle is moved toward the inside of the door under the action of air pressure until it is flush with the outer wall of the door, thereby preventing the staff from accidentally opening the door of the protective cover of the CNC grinding machine body during startup.

[0012] (2) The utility model provides an opening device, which presses the airbag so that the gas inside the airbag enters the air pressure chamber, thereby pushing the slide plate, so that the slide plate drives the inclined block to move toward the side close to the door, thereby squeezing the door, so that a gap is generated between the door and the protective cover so that the staff can open the door, thereby preventing the door from being unable to be opened quickly during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the three-dimensional appearance structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0015] Figure 3 For this utility model Figure 2 Schematic diagram of the structure of A;

[0016] Figure 4 It is a schematic diagram of the structure of the opening device of the utility model.

[0017] In the figure: 1. CNC grinding machine body; 2. bottom plate; 3. protective cover; 4. door; 5. fixing mechanism; 6. opening device; 51. air pressure tube; 52. iron block; 53. tension spring; 54. handle; 55. iron core; 56. control wire; 61. air pressure chamber; 62. air bag; 63. slide plate; 64. inclined block. DETAILED DESCRIPTION

[0018] 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.

[0019] For example, see Figure 1-3A safety protection fixing device for a CNC grinder comprises a CNC grinder body 1, a bottom plate 2 is fixedly connected to the bottom of the CNC grinder body 1, a protective cover 3 is fixedly connected to the bottom plate 2, a door 4 is hinged to the protective cover 3, a fixing mechanism 5 is arranged inside the door 4, an opening device 6 is arranged inside the protective cover 3, the fixing mechanism 5 comprises an air pressure tube 51, the air pressure tube 51 is arranged in the inner wall of the door 4, an end of the air pressure tube 51 away from the hinge point between the door 4 and the protective cover 3 is slidably connected to an iron block 52, and the iron block 5 The outer surface of the air pressure tube 51 is coated with a rubber coating. By setting the rubber coating, the iron block 52 can fit tightly with the inner wall of the air pressure tube 51 to prevent the gas inside the air pressure tube 51 from flowing out. The iron block 52 is elastically connected to the inner wall of the air pressure tube 51 through a tension spring 53. The end of the air pressure tube 51 away from the iron block 52 is slidably connected with a handle 54. The shape of the handle 54 is a flat object that fits tightly with the inner wall of the air pressure tube 51 and is connected to a cylinder. By setting the shape of the handle 54 The handle 54 is arranged to ensure that there is no air leakage between the handle 54 and the air pressure tube 51, while making it convenient for the staff to control the opening of the door 4 through the handle 54. The handle 54 passes through the inner wall of the door 4, and an iron core 55 is fixedly connected to the inner wall of the protective cover 3. After the iron block 52 is on the side of the air pressure tube 51 closest to the iron core 55, the end of the handle 54 is just flush with the outer wall of the door 4. By setting the length of the handle 54, it is ensured that when the iron block 52 moves to the position closest to the iron core 55, the staff cannot open the door 4 through the handle 54, thereby achieving the effect of preventing accidental opening. The control wire 56 of the CNC grinding machine body 1 is fixedly connected to the outer wall of the iron core 55. By starting the power supply of the equipment, the iron core 55 is turned into an electromagnet, thereby attracting the iron block 52, so that the iron block 52 is attracted by the electromagnet to close the door 4, and at the same time, the handle 54 is driven to move toward the inside of the door 4 under the action of air pressure until it is flush with the outer wall of the door 4, thereby achieving the effect of preventing the staff from accidentally opening the door 4 of the protective cover 3 of the CNC grinding machine body 1 during startup.

[0020] When in use, the staff first puts the object to be polished on the CNC grinder body 1, and then closes the door 4. At this time, the staff starts the power supply of the equipment. When the power supply of the equipment is started, the equipment wires are energized, so that the control wire 56 is energized, so that the iron core 55 becomes an electromagnet under the action of the control wire 56 and generates magnetism, thereby attracting the iron block 52, so that the iron block 52 moves toward the side close to the iron core 55, so that the air pressure inside the air pressure tube 51 becomes low, so that under the action of the air pressure, the handle 54 moves toward the side close to the air pressure tube 51, thereby entering the interior of the door 4 and stopping at a position flush with the outer wall of the door 4. At this time, the staff The handle 54 cannot be pulled, thereby ensuring that the staff will not open the door 4 and cause a dangerous situation due to forgetting that the equipment is working during the use of the CNC grinder. When the position of the handle 54 is adjusted, the staff starts the CNC grinder body 1. When the CNC grinder body 1 is finished working, the staff turns off the power of the equipment. At this time, the control wire 56 is not energized, and the iron core 55 loses its magnetism, and thus cannot continue to attract the iron block 52. At this time, the iron block 52 is reset under the pull of the tension spring 53, and squeezes the internal gas of the air pressure tube 51, so that the internal gas of the air pressure tube 51 pushes the handle 54 to reset. At this time, the staff can open the door 4 by pulling the handle 54.

[0021] For example 2, please refer to Figure 1-4 On the basis of the first embodiment, the opening device 6 includes an air pressure chamber 61, which is opened in the inner wall of the protective cover 3, and the air pressure chamber 61 is connected to an air bag 62, which is arranged on the outer wall of the protective cover 3 near the lower side, and a baffle is arranged above the air bag 62. By setting the position of the air bag 62 and the baffle, it is ensured that the air bag 62 is not easily touched by mistake when the CNC grinding machine body 1 is working normally. A slide plate 63 is slidably connected to the inner wall of the air pressure chamber 61, and an inclined block 64 is slidably connected to the inner wall of the protective cover 3. The shape of the inclined block 64 is a triangular block. The shape of the object is connected to a rectangular slide. By setting the shape of the inclined block 64, the inclined block 64 can push the door 4 to rotate and move under the push of the slide plate 63 to achieve the expected effect. By pressing the air bag 62, the gas inside the air bag 62 enters the air pressure chamber 61, thereby pushing the slide plate 63, so that the slide plate 63 drives the inclined block 64 to move toward the side close to the door 4, thereby squeezing the door 4, so that a gap is generated between the door 4 and the protective cover 3 so that the staff can open the door 4, thereby preventing the door 4 from being unable to be quickly opened during use.

[0022] During use, based on Example 1, when an accident occurs during operation of the CNC grinding machine body 1 and the door 4 needs to be opened for processing, the staff presses the airbag 62 to allow the gas inside the airbag 62 to enter the air pressure chamber 61, so that the slide plate 63 slides toward the end away from the airbag 62 under the action of air pressure, and pushes the inclined block 64 during the sliding process, so that the inclined block 64 pushes the door 4, so that a gap is generated between the door 4 and the protective cover 3, and the staff can then open the door 4 through the gap.

[0023] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A safety protection fixing device for a CNC grinding machine, comprising a CNC grinding machine body (1), characterized in that: A bottom plate (2) is fixedly connected to the bottom of the CNC grinding machine body (1), a protective cover (3) is fixedly connected to the bottom plate (2), a door (4) is hingedly connected to the protective cover (3), a fixing mechanism (5) is arranged inside the door (4), and an opening device (6) is arranged inside the protective cover (3); The fixing mechanism (5) comprises an air pressure tube (51), wherein the air pressure tube (51) is arranged in the inner wall of the door (4), and an end of the air pressure tube (51) away from the hinge point between the door (4) and the protective cover (3) is slidably connected to an iron block (52), and the iron block (52) is elastically connected to the inner wall of the air pressure tube (51) through a tension spring (53). An end of the air pressure tube (51) away from the iron block (52) is slidably connected to a handle (54), and the handle (54) passes through the inner wall of the door (4). An iron core (55) is fixedly connected to the inner wall of the protective cover (3), and a control wire (56) of the CNC grinding machine body (1) is fixedly connected to the outer wall of the iron core (55).

2. The safety protection fixing device for a CNC grinding machine according to claim 1, characterized in that: The opening device (6) comprises an air pressure chamber (61), the air pressure chamber (61) is opened in the inner wall of the protective cover (3), the air pressure chamber (61) is connected to an air bag (62), a slide plate (63) is slidably connected to the inner wall of the air pressure chamber (61), and an inclined block (64) is slidably connected to the inner wall of the protective cover (3).

3. The safety protection fixing device for a CNC grinding machine according to claim 1, characterized in that: The handle (54) is in the shape of a flat object that fits tightly against the inner wall of the air pressure tube (51) and is connected to a cylinder.

4. The safety protection fixing device for a CNC grinding machine according to claim 1, characterized in that: After the iron block (52) is located on the side of the air pressure tube (51) closest to the iron core (55), the end of the handle (54) is flush with the outer wall of the door (4).

5. The safety protection fixing device for a CNC grinding machine according to claim 2, characterized in that: The inclined block (64) is in the shape of a triangular block connected to a rectangular parallelepiped slide.

6. The safety protection fixing device for a CNC grinding machine according to claim 2, characterized in that: The airbag (62) is arranged on the outer wall of the protective cover (3) at a position close to the lower side, and a baffle is arranged above the airbag (62).

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