Protective device for numerical control machine tool light machine machining

Abstract

The utility model discloses a protective device for numerical control machine tool light machining, and relates to the technical field of machine tool protection, the protective device comprises a machining bottom plate, a protective cover is provided with a placement window, a protective mechanism comprises a protective curtain covering the placement window, the top end of the protective curtain is fixedly provided with a wind-up roller, and the wind-up roller is rotatably installed between a pair of installation blocks. A volute spiral spring box is fixedly mounted on the outer side wall of one mounting block, the winding roller rotationally penetrates into the volute spiral spring box, a pair of pulling blocks is fixedly mounted on the side, close to the placement window, of the protective curtain, a fixing insertion plate is fixedly mounted at the bottom ends of the pulling blocks, and a fixing insertion groove is formed in the inner bottom end of the placement window. The protection mechanism is arranged, the protection curtain is pulled downwards through the pulling block, the spring in the volute spiral spring box is stretched along with rotation of the winding roller, the fixing inserting groove is inserted into the fixing inserting groove, and when chippings impact the protection curtain, the spring in the volute spiral spring box absorbs impact force.

Description

Technical Field

[0001] This utility model relates to the field of machine tool protection technology, and in particular to a protective device for CNC machine tool optical machining. Background Technology

[0002] Machine tools are machines used to manufacture machines, also known as machine tools or mother machines, and are commonly referred to simply as machine tools. They are generally classified into metal cutting machine tools, forging and pressing machine tools, and woodworking machine tools, etc. When machining workpieces, protective devices are usually installed around the machine tool to prevent cutting chips from splashing outside the machine tool. The installation of protective devices can protect the personal safety of the workers.

[0003] Publication No. CN218397232U discloses a protective structure for a machining tool. The machining tool of this utility model is provided with a protective shell that is ringed around the outside of the machine tool for protection. It is provided with two movable baffles that can be extended or retracted, and a support rod for supporting the two movable baffles. By movably setting the movable baffles between the support frame and the protective shell, the flying debris generated during the machining process is protected to avoid the occurrence of debris injury.

[0004] However, during the machining process, the debris will continuously exert a certain impact force on the movable baffle. In the long run, the continuous impact force may cause the installation structure of the protective cover to loosen. This repeated impact force will cause fatigue damage to the protective cover material, reduce its strength and service life, and affect the stability and safety of the entire protective device. Therefore, it is necessary to propose a protective device for CNC machine tool optical machining. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies where repeated impacts can cause fatigue damage to the protective cover material, reducing its strength and service life, and affecting the stability and safety of the entire protective device. Therefore, this invention proposes a protective device for CNC machine tool optical machining.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A protective device for CNC machine tool optical machining includes a machining base plate, a protective cover fixedly installed on the top of the machining base plate, a mounting window on the protective cover, and a protective mechanism inside the protective cover. The protective mechanism includes a protective curtain that covers the mounting window, a take-up roller fixedly installed on the top of the protective curtain, the take-up roller being rotatably installed between a pair of mounting blocks, a spiral spring box fixedly installed on the outer wall of one mounting block, the take-up roller rotating through the spiral spring box, a pair of pulling blocks fixedly installed on the side of the protective curtain near the mounting window, a fixing plate fixedly installed at the bottom of the pair of pulling blocks, a fixing slot opened at the bottom of the mounting window, the fixing plate being movably installed in the fixing slot, a buffer assembly above each pair of mounting blocks, and a fastening assembly below the protective curtain.

[0008] Used to shield the installation window and prevent debris from flying during processing. By pulling down the protective curtain with the pull block, the spring in the spiral spring box is stretched as the take-up roller rotates, causing the fixing slot to be inserted into the fixing slot. When debris impacts the protective curtain, the spring in the spiral spring box absorbs the impact force, preventing the debris from directly impacting the protective cover.

[0009] Preferably, the buffer assembly includes a fixed box that is fixedly installed on the inner side wall of the protective cover, a limiting plate that is movably arranged inside the fixed box, a sliding column that is fixedly installed at the bottom end of the limiting plate, the sliding column sliding through to the bottom of the fixed box, an mounting plate that is fixedly installed at the bottom end of the sliding column, and a mounting block that is fixedly installed at the bottom end of the mounting plate.

[0010] The fixed box is provided with a first functional spring, which is sleeved on the sliding column and elastically connected between the bottom end of the limiting plate and the bottom end of the fixed box.

[0011] Used to absorb the impact force on the protective curtain, under the weight of the protective curtain itself, the mounting block drives the limiting plate to move through the mounting plate and sliding column. The limiting plate compresses the first functional spring, which supports the mounting block. When debris generated during processing impacts the protective curtain, the first functional spring absorbs the impact force to a certain extent.

[0012] Preferably, the fastening assembly includes a fastening box fixedly installed on the outer wall of the protective cover, a limiting plate is movably arranged inside the fastening box, a number of fastening grooves are evenly spaced on the side of the fixing plate near the placement window, and a number of through holes are evenly spaced on the outer wall of the protective cover, all of which are connected to the fixing slots.

[0013] Several fastening grooves correspond one-to-one with the through holes. Several fastening posts are evenly and equidistantly fixed on the side of the limiting plate near the placement window. Several fastening posts correspond one-to-one with the through holes. The fastening posts are slidably set in the corresponding fastening grooves and through holes.

[0014] A number of sliding rods are fixedly installed on the other side of the limiting plate. The other end of the sliding rod slides through the outer wall of the fastening box. A second functional spring is sleeved on the sliding rod. The second functional spring is elastically connected between the outer wall of the limiting plate and the inner wall of the fastening box. A fixed handle is fixedly installed at the end of the sliding rod.

[0015] Used to fasten the end of the protective curtain, the sliding rod is pulled outward by the fixed handle, the sliding rod drives the limiting plate and the fastening post to move, the limiting plate compresses the second function spring, the fastening post disengages, after the fixed insert plate is inserted into the fixed slot, the fixed handle is released, and under the reaction force of the second function spring, the fastening post is inserted into the through hole and the fastening groove.

[0016] This utility model has the following beneficial effects:

[0017] 1. By setting up a protective mechanism, the protective curtain is pulled down by the pull block. As the take-up roller rotates, the spring in the spiral spring box is stretched, causing the fixing slot to be inserted into the fixing slot. When debris impacts the protective curtain, the spring in the spiral spring box absorbs the impact force, preventing the debris from directly impacting the protective cover.

[0018] 2. By setting the fastening components, the sliding rod is pulled outward by the fixed handle. The sliding rod drives the limiting plate and the fastening post to move. The limiting plate compresses the second functional spring, and the fastening post disengages. After the fixed insert plate is inserted into the fixed slot, the fixed handle is released. Under the reaction force of the second functional spring, the fastening post is inserted into the through hole and the fastening groove. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of a protective device for CNC machine tool optical machining proposed in this utility model;

[0020] Figure 2 This is a schematic diagram of the protective mechanism of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the buffer assembly of this utility model;

[0022] Figure 4 This is a schematic diagram of the fastening component of this utility model.

[0023] In the diagram: 1. Processing base plate; 2. Protective cover; 3. Installation window; 4. Protective mechanism; 41. Protective curtain; 42. Rewinding roller; 43. Mounting block; 44. Scroll spring box; 45. Pulling block; 46. Fixing insert plate; 47. Fixing slot; 48. Buffer assembly; 481. Fixing box; 482. Limiting plate; 483. Sliding column; 484. Mounting plate; 485. First function spring; 49. Fastening assembly; 491. Fastening box; 492. Limiting plate; 493. Fastening groove; 494. Through hole; 495. Fastening column; 496. Sliding rod; 497. Second function spring; 498. Fixing handle. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Reference Figure 1-4 A protective device for optical machining on a CNC machine tool includes a machining base plate 1. A protective cover 2 is fixedly installed on the top of the machining base plate 1. A placement window 3 is opened on the protective cover 2. A protective mechanism 4 is set inside the protective cover 2. The protective mechanism 4 includes a protective curtain 41 that covers the placement window 3. A take-up roller 42 is fixedly installed on the top of the protective curtain 41. The take-up roller 42 is rotatably installed between a pair of mounting blocks 43. A spiral spring box 44 is fixedly installed on the outer wall of one mounting block 43. The take-up roller 42 rotates through the spiral spring box 44. A pair of pulling blocks 45 are fixedly installed on the side of the protective curtain 41 near the placement window 3. A fixing plate 46 is fixedly installed at the bottom of the pair of pulling blocks 45. A fixing slot 47 is opened at the bottom of the placement window 3. The fixing plate 46 is movably set in the fixing slot 47. A buffer component 48 is set above each pair of mounting blocks 43. A fastening component 49 is set below the protective curtain 41.

[0027] The buffer assembly 48 includes a fixed box 481 that is fixedly installed on the inner side wall of the protective cover 2. A limiting plate 482 is movably installed inside the fixed box 481. A sliding column 483 is fixedly installed at the bottom of the limiting plate 482. The sliding column 483 slides through to the bottom of the fixed box 481. An installation plate 484 is fixedly installed at the bottom of the sliding column 483. An installation block 43 is fixedly installed at the bottom of the installation plate 484.

[0028] A first functional spring 485 is provided inside the fixed box 481. The first functional spring 485 is sleeved on the sliding column 483 and is elastically connected between the bottom end of the limiting plate 482 and the bottom end of the fixed box 481.

[0029] The fastening assembly 49 includes a fastening box 491 fixedly installed on the outer wall of the protective cover 2. A limit plate 492 is movably installed inside the fastening box 491. A number of fastening grooves 493 are evenly spaced on the side of the fixed insert plate 46 near the placement window 3. A number of through holes 494 are evenly spaced on the outer wall of the protective cover 2. All of the through holes 494 are connected to the fixed slot 47.

[0030] Several fastening grooves 493 correspond one-to-one with through holes 494. Several fastening posts 495 are evenly and uniformly fixedly installed on the side of the limiting plate 492 near the placement window 3. Several fastening posts 495 correspond one-to-one with through holes 494. The fastening posts 495 are slidably set in the corresponding fastening grooves 493 and through holes 494.

[0031] A number of sliding rods 496 are fixedly installed on the other side of the limiting plate 492. The other end of the sliding rod 496 slides through the outer wall of the fastening box 491. A second functional spring 497 is sleeved on the sliding rod 496. The second functional spring 497 is elastically connected between the outer wall of the limiting plate 492 and the inner wall of the fastening box 491. A fixed handle 498 is fixedly installed at the end of the sliding rod 496.

[0032] In this invention, the protective curtain 41 is pulled downward by the pull block 45. As the take-up roller 42 rotates, the spring in the spiral spring box 44 is stretched. The sliding rod 496 is pulled outward by the fixed handle 498. The sliding rod 496 drives the limiting plate 492 and the fastening post 495 to move. The limiting plate 492 compresses the second functional spring 497, and the fastening post 495 disengages from 494. After the fixed insert plate 46 is inserted into the fixed slot 47, the fixed handle 498 is released. Under the reaction force of the second functional spring 497, the fastening post 495 is inserted into the through hole 494 and the fastening groove 493 to fasten the end of the protective curtain 41. When debris impacts the protective curtain 41, the spring in the spiral spring box 44 absorbs the impact force to prevent the debris from directly impacting the protective cover 2. At the same time, when debris generated during processing impacts the protective curtain 41, the first functional spring 485 absorbs a certain amount of the impact force.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A protective device for optical machining on a CNC machine tool, comprising a machining base plate (1), a protective cover (2) fixedly installed on the top of the machining base plate (1), a mounting window (3) provided on the protective cover (2), and a protective mechanism (4) provided inside the protective cover (2), characterized in that: The protective mechanism (4) includes a protective curtain (41) that covers the placement window (3). A winding roller (42) is fixedly installed at the top of the protective curtain (41). The winding roller (42) is rotatably installed between a pair of mounting blocks (43). A spiral spring box (44) is fixedly installed on the outer wall of one mounting block (43). The winding roller (42) rotates through the spiral spring box (44). A pair of pulling blocks (45) are fixedly installed on the side of the protective curtain (41) near the placement window (3). A fixing plate (46) is fixedly installed at the bottom of the pair of pulling blocks (45). A fixing slot (47) is opened at the bottom of the placement window (3). The fixing plate (46) is movably installed in the fixing slot (47). A buffer assembly (48) is provided above each pair of mounting blocks (43). A fastening assembly (49) is provided below the protective curtain (41).

2. The protective device for CNC machine tool optical machining according to claim 1, characterized in that: The buffer assembly (48) includes a fixed box (481) that is fixedly installed on the inner wall of the protective cover (2). A limiting plate (482) is movably installed inside the fixed box (481). A sliding column (483) is fixedly installed at the bottom of the limiting plate (482). The sliding column (483) slides through to the bottom of the fixed box (481). An installation plate (484) is fixedly installed at the bottom of the sliding column (483). An installation block (43) is fixedly installed at the bottom of the installation plate (484).

3. The protective device for CNC machine tool optical machining according to claim 2, characterized in that: The fixed box (481) is provided with a first functional spring (485), which is sleeved on the sliding column (483) and elastically connected between the bottom end of the limiting plate (482) and the bottom end of the fixed box (481).

4. The protective device for CNC machine tool optical machining according to claim 1, characterized in that: The fastening assembly (49) includes a fastening box (491) fixedly installed on the outer wall of the protective cover (2). A limiting plate (492) is movably installed inside the fastening box (491). A number of fastening grooves (493) are evenly spaced on the side of the fixed insert plate (46) near the placement window (3). A number of through holes (494) are evenly spaced on the outer wall of the protective cover (2). All the through holes (494) are connected to the fixed slot (47).

5. A protective device for CNC machine tool optical machining according to claim 4, characterized in that: Several fastening grooves (493) correspond one-to-one with the through holes (494). Several fastening posts (495) are evenly and uniformly fixed on the side of the limiting plate (492) near the placement window (3). Several fastening posts (495) correspond one-to-one with the through holes (494). The fastening posts (495) are slidably arranged in the corresponding fastening grooves (493) and through holes (494).

6. A protective device for CNC machine tool optical machining according to claim 5, characterized in that: A plurality of sliding rods (496) are fixedly installed on the other side of the limiting plate (492). The other end of the sliding rod (496) slides through the outer wall of the fastening box (491). A second functional spring (497) is sleeved on the sliding rod (496). The second functional spring (497) is elastically connected between the outer wall of the limiting plate (492) and the inner wall of the fastening box (491). A fixed handle (498) is fixedly installed at the end of the sliding rod (496).

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