Anti-splashing drilling device

Abstract

The utility model discloses an anti-splashing drilling device, relates to the field of machine tools, and solves the problem that the position of a protective plate is inconvenient to adjust when scraps are prevented from splashing towards an operator through the protective plate. According to the technical scheme, the anti-splashing drilling device comprises a drill floor and a protection plate, the drill floor comprises a base, a support and an installation plate, the lower end of the support is fixed to the base or the lower end of the support and the base are integrated, the installation plate is fixedly arranged at the upper end of the support or the upper end of the support and the installation plate are integrated, and when the base is horizontally placed, the plane corresponding to the installation plate is vertical. A drill bit clamping device is installed at the bottom of the installation plate, the protection plate is installed on the installation plate in a sliding mode, the sliding direction of the protection plate is vertical when the base is horizontally placed, an observation window is arranged on the protection plate, a transparent plate is arranged at the observation window, the protection plate is connected with at least one pull rope, and one end of each pull rope is connected to the protection plate. And the other end is connected to a mounting plate or a support of the drill floor. The numerical control drilling machine is used for drilling various plates, sheet metal parts and numerical control parts.

Description

Technical Field

[0001] The utility model relates to the field of machine tools, in particular to a hole-making device which can prevent debris from splashing toward an operator. Background Art

[0002] Aviation materials are mainly aluminum alloy and titanium alloy, and the vast majority of aviation materials are aluminum alloy. Aluminum alloy is not only light in weight and high in strength, but also has good plasticity and machinability. In addition to surface shape processing, the processing of aviation materials also includes hole making and groove making. Bench drill is a common hole making device in the field of mechanical processing. When operating a bench drill, the operator is generally required to wear goggles and operate visually to avoid metal debris generated during the processing process from splashing and injuring the operator's eyes. The lenses of goggles are generally made of transparent plastic, not hard glass. Daily use and handling can easily cause scratches and scratches on the lenses, which affects the appearance and vision, and even makes it difficult for the operator to control the drilling process well.

[0003] The patent with the authorization announcement number CN 217647540 U discloses a drilling device for chain processing that is easy to adjust the diameter. The upper end of the processing platform is fixedly connected to a concave protective frame, and a transparent observation window is set at the right end of the concave protective frame. The concave protective frame is used to prevent debris from splashing during the process of drilling holes in the chain. The concave protective frame has a large shielding surface. Although the protective effect is good, it also blocks the operator's field of vision and is inconvenient to replace the drill bit. In addition, the concave protective frame is fixedly installed on the processing platform, and the workpiece to be drilled can only pass through the two sides of the concave protective frame. Therefore, it is suitable for drilling holes in strip-shaped workpieces such as chains, but not suitable for drilling holes in plate-shaped workpieces.

[0004] The patent with the authorization announcement number CN 117245112 A discloses a bench drill processing protection method. A fixed connection assembly is sleeved on the bench drill spindle. The fixed connection assembly is sleeved with the bench drill spindle on one hand, and fixed with the telescopic arm assembly on the other hand. The baffle assembly is connected through the telescopic arm assembly so that the baffle assembly blocks the end of the twist drill to prevent the flying iron chips from entering the operator's face when drilling, and avoids the iron chips from contacting the operator's arm. The baffle assembly includes a baffle and a bolt assembly. The baffle assembly is connected to the telescopic rod of the telescopic arm assembly through the bolt assembly, so that the telescopic arm assembly can be appropriately adjusted around the workpiece. The size of the baffle is small and cannot effectively block the iron chips. In addition, the baffle assembly is installed through the telescopic arm assembly and the fixed connection assembly, and the position of the baffle assembly is not easy to adjust. Utility Model Content

[0005] The utility model provides an anti-splash hole-making device, which solves the problem that the position of the protective plate is inconvenient to adjust when the protective plate is used to prevent debris from splashing toward the operator.

[0006] The technical solution adopted by the utility model is: an anti-splash hole-making device, including a drilling platform and a protective plate installed on the drilling platform, the drilling platform including a base, a support and a mounting plate, the lower end of the support is fixed to the base or the two are an integral whole, the upper end of the support is fixedly provided with a mounting plate or the two are an integral whole, when the base is placed horizontally, the plane corresponding to the mounting plate is vertical, a drill bit holder is installed at the bottom of the mounting plate, the protective plate is slidably installed on the mounting plate, the sliding direction of the protective plate is vertical when the base is placed horizontally, an observation window is arranged on the protective plate, a transparent plate is arranged at the observation window, the protective plate is connected to at least one pull rope, one end of the single pull rope is connected to the protective plate, and the other end is connected to the mounting plate or the support of the drilling platform.

[0007] In order to prevent the debris generated by hole making from splashing toward the side of the protective plate and scratching the transparent plate, the drilling platform is further provided with at least one air nozzle, the blowing direction of the air nozzle points to the bottom of the drill bit holder and away from one side of the transparent plate.

[0008] In order to make the protective plate more stable after staying in the required position, further: the mounting plate is provided with a receiving groove, a guide rod is installed inside the receiving groove, the guide rod is arranged vertically, a spring is sleeved on the outside of the guide rod, and the two ends of the spring are respectively tightly fitted with the mounting plate and the protective plate.

[0009] In order to balance the force on the protective plate and make the protective plate slide smoothly, further, when the base is placed horizontally, two vertically arranged side surfaces of the protective plate are respectively connected to a pull rope, and the mounting plate and the two vertically arranged side surfaces of the protective plate are respectively provided with receiving grooves. In order to facilitate the installation of the transparent plate on the observation window, further, the observation window is rectangular, and a U-shaped convex groove is provided along the edge of the observation window on the side of the protective plate facing away from the support, the U-shaped opening corresponding to the convex groove faces upward, and the transparent plate is inserted into the convex groove.

[0010] In order to make the protective plate slide vertically smoothly, specifically: the mounting plate is a rectangular plate, the protective plate is rectangular as a whole, the two vertically arranged side surfaces of the mounting plate are respectively arranged in a slot with an L-shaped horizontal section, and hooks adapted to the slot are respectively arranged on both sides of the protective plate.

[0011] The pull rope is used to control the position of the protective plate relative to the mounting plate. In order to facilitate the smooth sliding of the protective plate controlled by the pull rope, further: a guide wheel is set on the top of the mounting plate, one end of the pull rope is connected to the protective plate, the pull rope passes through the guide wheel, and the other end of the pull rope is connected to the support, and the pull rope between the guide wheel and the protective plate is arranged vertically.

[0012] In order to facilitate the adjustment of the pull rope and thus the height of the protective plate, further: a handle is installed on the support, the handle is provided with an operating lever or turntable for controlling the rotation of the handle around its axis, one end of the pull rope is fixedly connected to the outside of the handle, and a damping mechanism is also provided between the handle and the support.

[0013] The damping mechanism is used to make the handle and the support relatively fixed under a small external force, and the handle can rotate around its axis under a large external force. Specifically: the damping mechanism includes a cover body and a damping body respectively sleeved on the outside of the handle, the cover body is tightly connected to the support, and the damping body is located between the cover body and the support.

[0014] In order to be able to linearly adjust the damping of the damping mechanism, further: the outer contour of the damping body is in a frustum shape, the cover body is provided with a cavity adapted to the outer contour of the damping body, a part of the damping body is embedded in the cavity of the cover body, and the inner circle of the damping body has a plurality of wedge-shaped grooves.

[0015] The utility model has the following beneficial effects: when the base is placed horizontally, the sliding direction of the protective plate is vertical, that is, the protective plate can be raised and lowered, which is convenient for installing and removing the drill bit. The protective plate is connected to a pull rope, and the protective plate can be raised and lowered to a suitable position by retracting and releasing the pull rope, that is, the height of the protective plate can be conveniently adjusted by extending and shortening the pull rope. One end of the pull rope is fixed to the drill platform, and the protective plate can stay in a suitable position, which can not only prevent debris from splashing toward the operator, but also facilitate operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 and Figure 2 It is a three-dimensional structural diagram of two angles of an embodiment of the splash-proof hole-making device of the utility model.

[0017] Figure 3 yes Figure 2 Magnified view of area A.

[0018] Figure 4 yes Figure 1 and Figure 2 Top view of the illustrated embodiment.

[0019] Figure 5 yes Figure 4 Magnified view of area B.

[0020] Figure 6 yes Figure 1 and Figure 2 An exploded view of the handle and damping mechanism in the illustrated embodiment.

[0021] Figure 7 yes Figure 6 Top view of the .

[0022] Figure 8 yes Figure 7 Full section view along CC.

[0023] Fig. 9 yes Figure 7 Full section view along DD.

[0024] Figure numerals: base 11, support 12, mounting plate 13, drill bit holder 14, air nozzle 15, protective plate 2, transparent plate 21, convex groove 22, hook 23, pull rope 3, guide rod 41, spring 42, guide wheel 5, handle 6, cover body 71, damping body 72, wedge groove 73. DETAILED DESCRIPTION

[0025] The utility model will be further described below in conjunction with the accompanying drawings.

[0026] The utility model anti-splash hole making device is used for making holes in various plates, sheet metal parts and numerical controls. Figures 1 to 9 As shown, the utility model of the splash-proof hole-making device includes a drilling platform and a protective plate 2 installed on the drilling platform. The drilling platform includes a base 11, a support 12 and a mounting plate 13. The base 11 is generally a plate. The lower end of the support 12 is fixed to the base 11 or the two are a whole. The upper end of the support 12 is fixedly provided with the mounting plate 13 or the two are a whole. When the base 11 is placed horizontally, that is, when the base 11 is placed on a horizontal plane, the plane corresponding to the mounting plate 13 is vertical. The drilling platform is a stationary part with high strength and large size, which is used to support the entire structure and withstand various stresses. The material of the drilling platform is generally cast iron, and other materials can also be used without considering the cost. A drill bit holder 14 is installed at the bottom of the mounting plate 13. The drill bit holder 14 is preferably retractable. The drill bit holder 7 generally adopts the existing three-jaw chuck form, and the retractable form can be electric or manual.

[0027] The protective plate 2 is slidably mounted on the mounting plate 13. When the base 11 is placed horizontally, the sliding direction of the protective plate 2 is vertical. The sliding direction of the protective plate 2 can be vertically upward or vertically downward. For example, the mounting plate 13 is a rectangular plate. The protective plate 2 is rectangular as a whole. The two vertically arranged side surfaces of the mounting plate 13 are respectively arranged in a slot with an L-shaped horizontal cross section. The two sides of the protective plate 2 are respectively provided with hooks 23 adapted to the slot. The hooks 23 are clamped in the slot. Figure 5 As shown. The horizontal cross-section of the protective plate 2 is roughly in the shape of [, which can effectively block the debris generated by hole making from heading toward the operator. The protective plate 2 is used to block the debris generated by hole making from heading toward the operator. The protective plate 2 is generally made of metal or plastic. The protective plate 2 slides up and down to achieve a shielded or open state for the drill bit holder 14, so as to facilitate protection during drilling and replacement of the drill bit when open. In order to achieve visual operation without goggles, an observation window is provided on the protective plate 2. The observation window is a hollow hole. A transparent plate 21 is provided at the observation window, and the transparent plate 21 closes the observation window. In order to facilitate the installation of the transparent plate 21 on the observation window of the protective plate 2, the observation window is rectangular, and a U-shaped convex groove 22 is provided on the side of the protective plate 2 facing away from the support 12 along the edge of the observation window. The U-shaped opening corresponding to the convex groove 22 faces upward, and the transparent plate 21 is inserted into the convex groove 22, as shown Figure 2 The transparent plate 21 is preferably coated glass, wherein the glass surface is installed near the drill holder 14 and the coated side is installed near the operator. The glass is hard and not easy to be scratched, so that metal debris can be prevented from splashing and scratching the transparent plate 21, and the transparent plate 21 has a longer service life. Considering that the glass is fragile, it is necessary to coat the glass.

[0028] In order to further prevent the debris generated by hole making from splashing to one side of the protective plate 2 and scratching the protective plate 2, especially the transparent plate 21, the drilling platform can also be provided with at least one air nozzle 15, the blowing direction of the air nozzle 15 is directed to the lower side of the drill bit holder 14 and away from the transparent plate 21. The air nozzle 15 provides a high-speed airflow through external high-pressure air to blow the debris as far away from the protective plate 2 as possible. High-pressure air is available in every aviation processing workshop, and its connection method adopts a quick structure connection, which is a mature existing technology.

[0029] The protective plate 2 is connected to at least one pull rope 3. One end of the single pull rope 3 is connected to the protective plate 2 to pull the protective plate 2, and the other end is connected to the mounting plate 13 or the support 12 of the drilling platform. In order to facilitate the connection of the pull rope 3 to the protective plate 2, the protective plate 2 is provided with an earring, and the pull rope 3 is directly connected to the earring. The pull rope 3 is used to control the position of the protective plate 2 relative to the mounting plate 13. In order to facilitate the smooth sliding of the protective plate 2 by controlling the pull rope 3, a guide wheel 5 is provided on the top of the mounting plate 13. One end of the pull rope 3 is connected to the protective plate 2. The pull rope 3 passes through the guide wheel 5, and the other end of the pull rope 3 is connected to the support 12. The pull rope 3 between the guide wheel 5 and the protective plate 2 is arranged vertically, so that the direction of the force of the pull rope 3 on the protective plate 2 is vertical, which is conducive to the corresponding sliding of the protective plate 2. In order to balance the force on the protective plate 2 and make the protective plate 2 slide smoothly, it is best to have two pull ropes 3. If Figure 4 As shown, when the base 11 is placed horizontally, two vertically arranged side surfaces of the protective plate 2 are respectively connected to a pull rope 3 .

[0030] When the base 11 of the drilling platform is placed horizontally, the protective plate 2 maintains a relatively fixed position under the action of its own weight and the pull rope 3. In order to make the protective plate 2 more stable after staying in the required position, see Figure 3, the mounting plate 13 is provided with a receiving groove, and a guide rod 41 is installed inside the receiving groove. The guide rod 41 is arranged vertically, and a spring 42 is sleeved on the outside of the guide rod 41. The two ends of the spring 42 are respectively tightly matched with the mounting plate 13 and the protective plate 2. For example, the lower end of the spring 42 has a guide ring sleeved on the guide rod 41. The guide ring is fixedly connected to the protective plate 2 and slides up and down synchronously with the protective plate 2. In a natural state, due to the elastic force provided by the spring 42, the guide ring will always be in the lowest position. At this time, the protective plate 2 is in a state of shielding the drill bit holder 14. In order to balance the force on the protective plate 2, when the base 11 is placed horizontally, receiving grooves are respectively set at the positions corresponding to the two side surfaces of the mounting plate 13 and the protective plate 2 arranged vertically, that is, both sides of the protective plate 2 are affected by the spring 42.

[0031] In order to facilitate the adjustment of the pull rope 3 and thus the height of the protective plate 2, a handle 6 is installed on the support 12. The handle 6 can rotate around its axis on the support 12. One end of the pull rope 3 is fixedly connected to the outside of the handle 6 and can be wrapped around the handle 6. A damping mechanism is also provided between the handle 6 and the support 12. In order to facilitate the rotation of the handle 6, the handle 6 is provided with an operating lever or a turntable for controlling the rotation of the handle 6 around its axis. The damping mechanism is used to make the handle 6 and the support 12 relatively fixed under the action of a smaller external force, and the handle 6 can rotate around its axis only under the action of a larger external force, that is, the pull rope 3 cannot rotate the handle 6 alone under the action of the gravity of the protective plate 2 and the spring 42. The handle 6 can only rotate around its axis with the help of the external force applied by the operator. For details, see Figures 6 to 9 The damping mechanism includes a cover body 71 and a damping body 72 which are respectively sleeved on the outside of the handle 6 . The cover body 71 is fastened to the support 12 , and the damping body 72 is located between the cover body 71 and the support 12 .

[0032] In order to linearly adjust the damping of the damping mechanism, the outer contour of the damping body 72 is in the shape of a cone, the cover body 71 is provided with a cavity adapted to the outer contour of the damping body 72, the annular side wall of the cavity is a conical surface, the annular side wall of the cavity is a convergent side wall, a part of the damping body 72 is embedded in the cavity of the cover body 71 or the damping body 72 is fully embedded in the cavity of the cover body 71, and the inner ring of the damping body 72 has a plurality of wedge-shaped grooves 73. As the fastening force between the cover body 71 and the drilling platform increases, the damping body 72 is squeezed, the wedge-shaped grooves 73 become narrower, and the damping (friction force) between the damping body 72 and the handle 6 increases, thereby further improving the stability of the handle 6, thereby fixing the protective plate 2 in a preset position. In order to balance the force, it is best to have the handle 6 and the corresponding damping mechanism. The damping mechanism and the pull rope 3 are symmetrically arranged on both sides of the drilling platform, and the two handles 6 are a whole, and the two handles 6 have the same outer diameter and rotate synchronously.

Claims

1. A splash-proof hole-making device, comprising a drilling platform and a protective plate (2) mounted on the drilling platform, the drilling platform comprising a base (11), a support (12) and a mounting plate (13), the lower end of the support (12) being fixed to the base (11) or the two being an integral whole, the upper end of the support (12) being fixedly provided with the mounting plate (13) or the two being an integral whole, when the base (11) is placed horizontally, the plane corresponding to the mounting plate (13) is vertical, and a drill bit holder (14) is mounted at the bottom of the mounting plate (13), wherein: The protective plate (2) is slidably mounted on the mounting plate (13); the sliding direction of the protective plate (2) is vertical when the base (11) is placed horizontally; an observation window is provided on the protective plate (2); a transparent plate (21) is provided at the observation window; the protective plate (2) is connected to at least one pull rope (3); one end of the single pull rope (3) is connected to the protective plate (2), and the other end is connected to the mounting plate (13) or the support (12) of the drilling platform.

2. The splash-proof hole-making device according to claim 1, characterized in that: The drilling platform is also provided with at least one air nozzle (15), the blowing direction of the air nozzle (15) pointing to the bottom of the drill bit holder (14) and away from one side of the transparent plate (21).

3. The splash-proof hole-making device according to claim 1, characterized in that: The mounting plate (13) is provided with a receiving groove, a guide rod (41) is installed inside the receiving groove, the guide rod (41) is arranged vertically, a spring (42) is sleeved outside the guide rod (41), and two ends of the spring (42) are respectively tightly matched with the mounting plate (13) and the protective plate (2).

4. The splash-proof hole-making device according to claim 3, characterized in that: When the base (11) is placed horizontally, two vertically arranged side surfaces of the protective plate (2) are respectively connected to a pull rope (3), and accommodating grooves are respectively provided at positions corresponding to the two vertically arranged side surfaces of the protective plate (2).

5. The splash-proof hole-making device according to claim 1, characterized in that: The observation window is rectangular, and a U-shaped convex groove (22) is arranged along the edge of the observation window on one side of the protection plate (2) facing away from the support (12), the U-shaped opening corresponding to the convex groove (22) faces upward, and the transparent plate (21) is inserted into the convex groove (22).

6. The splash-proof hole-making device according to claim 1, characterized in that: The mounting plate (13) is a rectangular plate, the protective plate (2) is rectangular as a whole, two vertically arranged side surfaces of the mounting plate (13) are respectively arranged in a card slot with an L-shaped horizontal cross section, and card hooks (23) adapted to the card slot are respectively arranged on both sides of the protective plate (2).

7. The splash-proof hole-making device according to any one of claims 1 to 6, characterized in that: A guide wheel (5) is arranged on the top of the mounting plate (13), one end of the pull rope (3) is connected to the protective plate (2), the pull rope (3) passes through the guide wheel (5), and the other end of the pull rope (3) is connected to the support (12), and the pull rope (3) between the guide wheel (5) and the protective plate (2) is arranged vertically.

8. The splash-proof hole-making device according to claim 7, characterized in that: A handle (6) is mounted on the support (12), and the handle (6) is provided with an operating rod or a turntable for controlling the handle (6) to rotate around its axis. One end of the pull rope (3) is fixedly connected to the outside of the handle (6), and a damping mechanism is also provided between the handle (6) and the support (12).

9. The splash-proof hole-making device according to claim 8, characterized in that: The damping mechanism comprises a cover body (71) and a damping body (72) respectively sleeved on the outside of the handle (6); the cover body (71) is tightly connected to the support (12); and the damping body (72) is located between the cover body (71) and the support (12).

10. The splash-proof hole-making device according to claim 9, characterized in that: The outer contour of the damping body (72) is in the shape of a cone, the cover body (71) is provided with a cavity adapted to the outer contour of the damping body (72), a part of the damping body (72) is embedded in the cavity of the cover body (71), and the inner ring of the damping body (72) has a plurality of wedge-shaped grooves (73).

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