Angle-variable drill floor and drill

Abstract

The utility model relates to the technical field of machining equipment, in particular to a variable-angle drill floor and a drill. The variable-angle drill floor comprises a base and a connecting mechanism which are in running fit with each other through a rotating shaft, a rotating shaft and a drill bit seat are arranged on the connecting mechanism, the drill bit seat can rotate around the rotating shaft, and an included angle is formed between the rotating shaft and the rotating shaft. According to the variable-angle drill floor, the inclination angle of the drill bit seat relative to a workpiece can be conveniently and flexibly adjusted under the condition that high punching accuracy and precision are achieved, so that drill holes with different inclination angles are drilled, and the requirements of various use scenes are met.

Description

Technical Field

[0001] The utility model relates to the technical field of machining equipment, and particularly relates to a variable-angle drill table and a drill. Background Art

[0002] When drilling holes in a workpiece, equipment such as an electric drill and a bench drill are often used. The electric drill includes a drill body and a drill bit installed on the drill body. The operator can hold the drill body to align the drill bit with the workpiece from different directions and positions, so as to complete the drilling operations at different positions and orientations. However, since the stability of the drill bit is maintained by the operator's grip, it inevitably results in poor accuracy and precision of drilling, and is suitable for drilling under the condition of low accuracy requirements.

[0003] Common bench drills include a base, a column, and a drilling machine. The column is connected to the base, and the drilling machine is installed on the column and can move up and down along the column. During use, the workpiece is placed on the base, the drill bit of the drilling machine is aligned with the workpiece, and then the drilling machine is moved to make the drill bit approach the workpiece along its axis for drilling. Compared with the electric drill held by hand, the accuracy and precision of drilling with a bench drill are improved. However, for most bench drills on the market, the drill bit forms a fixed angle (usually 90°) with the surface of the base, and the axis of drilling can mostly only be perpendicular to the outer surface of the workpiece. If inclined drilling is required, a common method is to use pads with different heights to raise one end of the workpiece to make the workpiece inclined to the surface of the base, and such operation is very troublesome. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the problem of troublesome operation of inclined drilling with a bench drill in the background art, and provide a variable-angle drill table and a drill.

[0005] In a first aspect, the utility model provides a variable-angle drill table, which includes a base and a connecting mechanism that are rotatably matched with each other through a rotating shaft. A rotating shaft and a drill bit seat are arranged on the connecting mechanism. The drill bit seat can rotate around the rotating shaft, and there is an angle between the rotating shaft and the rotating shaft.

[0006] For the variable-angle drill table provided by the utility model, the base and the connecting mechanism are rotatably matched with each other. During use, the workpiece to be drilled can be made stationary relative to the base, and the inclination angle between the drill bit seat and the workpiece can be changed by the rotation of the connecting mechanism relative to the base, so as to drill holes with different inclination angles in the workpiece.

[0007] For the variable-angle drill table described in the utility model, the drill bit seat is connected and supported by the base and the connecting mechanism. Under the condition of achieving high drilling accuracy and precision, the inclination angle of the drill bit seat relative to the workpiece can be conveniently and flexibly adjusted to drill holes with different inclination angles to meet the needs of various use scenarios.

[0008] Preferably, the rotating shaft is perpendicular to the rotating shaft; the drill bit seat points to the rotating shaft.

[0009] The perpendicularity between the rotation axis and the pivot axis can improve the efficiency of drilling; the rotation axis pointing to the pivot axis enables the drill head holder to face the same point on the pivot axis at different angles, making the drill table structure more compact and conducive to improving the stability of the drill table.

[0010] Preferably, the base includes a bottom plate and a joint member provided on the bottom plate. The bottom plate has a placement surface. The joint member is provided with at least two first arc-shaped chutes that are spaced apart and corresponding. The first arc-shaped chutes are slidably engaged with a first movable member, and the first movable member is connected to the connecting mechanism.

[0011] The first movable member can be a bar-shaped structure with a slight arc; the connecting mechanism can rotate around the center of the first arc-shaped chute following the first movable member, realizing the rotational fit between the connecting mechanism and the base; the first arc-shaped chute has an arc length of a certain length, and the inclination angle of the connecting mechanism relative to the base can be finely adjusted by observing and adjusting the position of the first movable member in the first arc-shaped chute.

[0012] Preferably, the joint member is further provided with a second arc-shaped chute that is concentric with the first arc-shaped chute. The second arc-shaped chute is slidably engaged with a second movable member, and the second movable member is connected to the connecting mechanism.

[0013] Preferably, an arc-shaped edge surface that is concentric with the first arc-shaped chute is provided on the side of the joint member away from the bottom plate. An arc-shaped abutting surface that is adapted to the arc-shaped edge surface is provided on the connecting mechanism, and the arc-shaped abutting surface abuts against the arc-shaped edge surface.

[0014] Through the slidably engaged second arc-shaped chute and the second movable member, the constraint between the joint member and the connecting mechanism can be enhanced, thereby improving the stability of the rotation of the connecting mechanism relative to the base; similarly, through the abutting fit between the arc-shaped edge surface and the arc-shaped abutting surface, the constraint between the joint member and the connecting mechanism can be enhanced, thereby improving the stability of the rotation of the connecting mechanism relative to the base.

[0015] Preferably, expansion holes are provided around the periphery of the bottom plate. The expansion holes are used to connect accessories, and the accessories are at least one of an extension seat, a footrest, an extension arm, and a fixing clip. By providing the expansion holes, the accessories can be assembled according to different needs of the user.

[0016] Preferably, at least four connecting holes are provided on the surface of the bottom plate close to the joint member. The four connecting holes are circumferentially arranged around the intersection point of the axis of the drill head holder and the pivot axis, and the four connecting holes are arranged in a rectangular distribution. The connecting holes are used to connect the extension arm or PIN pins, and two PIN pins can be installed diagonally.

[0017] The two diagonally installed PIN pins can be used for centering of strip-shaped workpieces and for drilling holes in the middle position of the workpiece; in addition, the two PIN pins can also be installed in the same direction to act as a baffle.

[0018] Preferably, a locking member is further included, and the locking member is used to lock the position of the first movable member relative to the first arc-shaped slideway.

[0019] Preferably, a V-shaped groove is provided on the bottom plate, the axis of the V-shaped groove is perpendicular to the rotating shaft, and the rotating shaft points to the axis of the V-shaped groove. The two inclined side walls of the V-shaped groove can assist in fixing the cylindrical workpiece to facilitate drilling on the cylindrical workpiece.

[0020] Preferably, angle scales are provided on the periphery of the first arc-shaped slideway. The angle scales facilitate the user to observe the inclination angle of the connecting mechanism relative to the base and provide a reference for further adjustment.

[0021] Preferably, the rotating shaft can rotate relative to the rotating axis by 120° or more.

[0022] Preferably, the connecting mechanism includes an upper seat body, a lower seat body and a column. The lower seat body is connected to the base, the column is arranged on the lower seat body, and the upper seat body can move closer to or away from the lower seat body along the column; the drill bit seat is installed on the upper seat body.

[0023] By pushing the upper seat body to move closer to the lower seat body, the drill bit installed on the drill bit seat can be close to and drill into the workpiece.

[0024] Preferably, at least two columns are included, and the upper seat body is slidably matched with at least two columns;

[0025] An elastic member is arranged on at least one column, and the elastic member can drive the upper seat body to move away from the lower seat body;

[0026] A blocking member is arranged on at least one column, the position of the blocking member on the column is adjustable, and the blocking member can block the upper seat body.

[0027] The upper seat body is connected to multiple columns, which can improve the stability of the upper seat body, thereby improving the accuracy and precision of drilling; the elastic force of the elastic member can assist in pushing the upper seat body to move away from the base, thereby reducing the physical consumption of the user to lift the upper seat body; setting the blocking member at a suitable position can control the drilling height of the drill bit, which is beneficial to reducing the probability of damaging the table surface.

[0028] Preferably, a guide disk is provided on the lower seat body, at least two guide holes are circumferentially arranged on the guide disk, the at least two guide holes have different apertures, and each guide hole can be coaxially arranged with the rotating shaft.

[0029] The guiding disc is arranged on the lower seat body, and the guiding hole is spaced from the drill bit seat, which can be used as a reference for adjusting the posture of the drill bit. During use, the upper part of the drill bit is installed on the drill bit seat, and the lower part passes through the guiding hole, so as to judge whether the drill bit is accurately installed according to the positional relationship between the drill bit and the side wall of the guiding hole. Moreover, the side wall of the guiding hole can restrict the drill bit, which can reduce the probability of the drill bit deviating during use and is beneficial to improving the drilling accuracy. Multiple guiding holes with different apertures are arranged on the guiding disc, which can be used to cooperate with drill bits of different specifications to expand the usage scenarios. The guiding disc can be rotatably connected to the lower seat body, and convex and concave matching protrusions and grooves can be arranged between the contact surfaces of the guiding disc and the lower seat body to indicate whether the guiding disc is in the correct position.

[0030] In a second aspect, the present invention provides a drilling device, including a drill bit, a driving device, and the variable-angle drill table as described above. The drill bit is installed on the drill bit seat, and the driving device can drive the drill bit seat to rotate around the return rotation shaft.

[0031] The drilling device provided by the present invention can conveniently and flexibly adjust the inclination angle of the drill bit seat relative to the workpiece by using the variable-angle drill table as described above under the condition of achieving high drilling accuracy and precision, so as to adjust the inclination angle of the drill bit installed on the drill bit seat relative to the base stationary to the workpiece, and to drill holes with different inclination angles to meet the needs of various usage scenarios.

[0032] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0033] 1. For the variable-angle drill table provided by the present invention, the base and the connecting mechanism are rotatably matched with each other. During use, the workpiece to be drilled can be made stationary relative to the base, and the inclination angle between the drill bit seat and the workpiece can be changed by the rotation of the connecting mechanism relative to the base, so as to drill holes with different inclination angles on the workpiece. The variable-angle drill table described in the present invention connects and supports the drill bit seat through the base and the connecting mechanism, and can conveniently and flexibly adjust the inclination angle of the drill bit seat relative to the workpiece under the condition of achieving high drilling accuracy and precision, so as to drill holes with different inclination angles to meet the needs of various usage scenarios.

[0034] 2. For the drilling device provided by the present invention, by using the variable-angle drill table as described above, the inclination angle of the drill bit seat relative to the workpiece can be conveniently and flexibly adjusted under the condition of achieving high drilling accuracy and precision, so as to adjust the inclination angle of the drill bit installed on the drill bit seat relative to the base stationary to the workpiece, and to drill holes with different inclination angles to meet the needs of various usage scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 Structural schematic diagram of the first drill table of this application Figure 1 ;

[0036] Figure 2Structural schematic diagram of the first type of drill floor in this application Figure 2 ;

[0037] Figure 3 Front view of the first type of drill floor in this application;

[0038] Figure 4 Side view of the first type of drill floor in this application;

[0039] Figure 5 Top view of the first type of drill floor in this application;

[0040] Figure 6 Schematic diagram of the first type of drill floor in this application with additional accessories;

[0041] Figure 7 Structural schematic diagram of the drill bit seat and bearing in this application;

[0042] Figure 8 Partial sectional view of the drill bit seat and the upper seat body in this application;

[0043] Figure 9 Structural schematic diagram of the second type of drill floor in this application;

[0044] Figure 10 Front view of the second type of drill floor in this application;

[0045] Figure 11 Schematic diagram of the second type of drill floor in this application with additional accessories;

[0046] Figure 12 Structural schematic diagram of the base in this application;

[0047] Figure 13 Structural schematic diagram of the connecting mechanism and the drill bit seat in this application;

[0048] Figure 14 For Figure 13 Enlarged view of part A in;

[0049] Figure 15 Schematic diagram of PIN pin centering in this application;

[0050] Figure 16 Schematic diagram of PIN pin installation in this application.

[0051] Markings in the figure:

[0052] 1 - Base;

[0053] 11 - Bottom plate;

[0054] 111 - Placing surface; 112 - Expansion hole; 113 - Extension seat; 114 - Footrest; 115 - Extension arm; 116 - V-shaped groove; 117 - Locking screw rod; 118 - Connecting hole;

[0055] 12 - Joint;

[0056] 121 - First arc chute; 122 - Second arc chute; 123 - Arc edge surface; 124 - Lock; 125 - Rotating handle;

[0057] 2 - Connecting mechanism;

[0058] 21 - Upper seat body;

[0059] 211 - Bearing; 212 - Nut; 213 - PIN needle;

[0060] 22 - Lower seat body;

[0061] 221 - First movable part; 222 - Second movable part; 223 - Arc abutting surface; 224 - Guide disk; 225 - Guide hole;

[0062] 23 - Column;

[0063] 231 - Elastic part; 232 - Blocking part;

[0064] 3 - Drill bit seat;

[0065] 31 - Rotating shaft; 32 - Clamping jaw;

[0066] 4 - Drill bit;

[0067] 41 - Rotating shaft;

[0068] 5 - Workpiece. Detailed implementation mode

[0069] The present utility model will be further described in detail below in conjunction with specific embodiments. However, this should not be construed as limiting the scope of the above - mentioned subject matter of the present utility model to the following embodiments. All technologies implemented based on the content of the present utility model belong to the scope of the present utility model.

[0070] In the description of the specific embodiments of the present utility model, without special explanation, the expression terms of orientation or positional relationship such as "upper", "lower", "left", "right", "center", "inner", "outer", etc. are all based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the utility model product / device / equipment is commonly used and placed. These terms of orientation or positional relationship are only for the convenience of describing the solution of the present utility model or simplifying the description in the specific embodiments, facilitating technicians to quickly understand the solution, rather than indicating or implying that a specific device / component / element must have a specific orientation or be constructed and operated in a specific positional relationship. Therefore, it should not be construed as a limitation to the present utility model.

[0071] In addition, when terms such as "horizontal", "vertical", "hanging", "parallel" appear, it does not mean that the corresponding device / component / element is required to be absolutely horizontal or vertical or hanging or parallel, but it can be slightly inclined or deviated. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and it does not mean that the structure must be completely horizontal, but it can be slightly inclined. Or, it can be simply understood that the corresponding device / component / element is arranged in directions such as "horizontal", "vertical", "hanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the solution of the present utility model.

[0072] In addition, when expressions such as "first", "second", "third",... appear in the terms, they are only used to distinguish the descriptions of the same or similar components, and should not be understood as emphasizing or implying the relative importance of specific components.

[0073] In addition, in the description of the embodiments of the present utility model, "several", "multiple", "a number of" represent at least 2. It can be any situation such as 2, 3, 4, 5, 6, 7, 8, 9, etc., and even can be a situation exceeding 9.

[0074] In addition, in the description of the technical solution of the present utility model, unless otherwise clearly specified / defined / restricted, where terms such as "set", "installed", "connected", "connected", "provided with", "laid", "arranged" appear, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be connection means commonly used in the art such as welding, riveting, bolting, screw connection, etc. This connection can be a mechanical connection, an electrical connection or a communication connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two components.

[0075] Embodiment 1

[0076] As Figure 1-14 shown, a variable-angle drill table provided in this embodiment includes a base 1 and a connection mechanism 2 that are rotatably matched with each other through a rotating shaft 41. A rotating shaft 31 and a drill bit seat 3 are arranged on the connection mechanism 2. The drill bit seat 3 can rotate around the rotating shaft 31 by itself, and there is an included angle between the rotating shaft 31 and the rotating shaft 41.

[0077] The base 1 can be used to place the workpiece 5 to be drilled. It can be a pedestal with a relatively small volume and convenient to move. Due to its relatively small volume, it can be carried and used more conveniently. It can also be a workbench with a relatively large volume or fixed to the ground. Due to its large volume or being fixed to the ground, the workbench has high stability, which is conducive to improving the drilling accuracy.

[0078] The connecting mechanism 2 is used to connect the drill bit holder 3 and the rotating shaft 41. The connecting mechanism 2 can rotate relative to the rotating shaft 41. The rotating shaft 41 can be stationary relative to the base 1, so that the rotation of the connecting mechanism 2 relative to the rotating shaft 41 can drive the drill bit holder 3 to rotate relative to the rotating shaft 41 and the workpiece 5 placed on the base 1.

[0079] The drill bit holder 3 can rotate around the return rotating shaft 31 by itself and drill holes in a self-rotating and screwing-in manner, which can improve the drilling efficiency. When in use, the workpiece 5 can be placed stationary relative to the base 1. Since there is an angle between the return rotating shaft 31 and the rotating shaft 41, the rotation of the drill bit holder 3 around the rotating shaft 41 can make the return rotating shaft 31 have different inclinations relative to the workpiece 5, so as to realize different inclinations of the drill bit holder 3 relative to the workpiece 5 and meet the needs of drilling holes at different angles in different scenarios.

[0080] It can be understood that there are various implementation methods for the rotational cooperation between the base 1 and the connecting mechanism 2. For example: the base 1 and the connecting mechanism 2 can be hinged together, and at this time the hinge shaft is the rotating shaft 41; in some embodiments, the drill bit holder 3 is also called a drill chuck.

[0081] A variable-angle drilling table provided by the present invention, the base 1 and the connecting mechanism 2 are rotationally cooperated with each other. When in use, the workpiece 5 to be drilled can be stationary relative to the base 1, and the inclination angle between the drill bit holder 3 and the workpiece 5 can be changed by the rotation of the connecting mechanism 2 relative to the base 1, so as to drill holes with different inclination angles on the workpiece 5.

[0082] The variable-angle drilling table described in the present invention connects and supports the drill bit holder 3 through the base 1 and the connecting mechanism 2. Under the condition of achieving high drilling accuracy and precision, the inclination angle of the drill bit holder 3 relative to the workpiece 5 can be adjusted conveniently and flexibly to drill holes with different inclination angles to meet the needs of various usage scenarios.

[0083] Preferably, the return rotating shaft 31 is perpendicular to the rotating shaft 41; the drill bit holder 3 points to the rotating shaft 41.

[0084] When the rotation axis 31 and the rotating shaft 41 are perpendicular to each other, the rotation of the connecting mechanism 2 relative to the rotating shaft 41 can cause the drill head holder 3 to rotate within a plane perpendicular to the rotating shaft 41, thereby obtaining a larger rotation range and being able to more conveniently adjust the inclination angle of the drill head holder 3 relative to the workpiece 5. The drill head holder 3 points to the rotating shaft 41, that is, the extension line of the axis of the drill head holder 3 intersects with the rotating shaft 41, which can make the drill head holder 3 face the same point on the rotating shaft 41 at different angles. Thus, in the design, the connecting mechanism 2 and the drill head holder 3 can be arranged in the same plane, making the drill table structure more compact, which is beneficial to improving the overall stability and service life of the drill table; moreover, for the user, the drill head holder 3 pointing to the rotating shaft 41 can more intuitively grasp the landing point of the drill head 4 and is more convenient to use.

[0085] In some embodiments, the axis of the drill head holder 3 is collinear with the rotation axis 31.

[0086] In one or several preferred embodiments, the base 1 includes a bottom plate 11 and a joint 12 provided on the bottom plate 11. The bottom plate 11 has a placement surface 111. The joint 12 is provided with at least two spaced and corresponding first arc-shaped slideways 121. The first arc-shaped slideways 121 are slidably fitted with first movable members 221, and the first movable members 221 are connected to the connecting mechanism 2.

[0087] As Figure 1 、 9 shown, the bottom plate 11 can be a plate-shaped member. The volume of the bottom plate 11 can be set relatively small for convenient carrying and use. The bottom plate 11 has a placement surface 111, and the placement surface 111 can be used for the outer surface of the workpiece 5 to lean against. By leaning against, the shaking of the workpiece 5 can be reduced, and the drilling accuracy can be improved; the placement surface 111 is preferably set as a plane and is located on the upper surface of the bottom plate 11.

[0088] The joint 12 can be used to connect with the connecting mechanism 2. The joint 12 can be a block protruding from the upper surface of the bottom plate 11. The joint 12 is provided with at least two spaced first arc-shaped slideways 121. The first arc-shaped slideways 121 are arc-shaped, and the first movable members 221 can be slidably connected inside them. The first movable members 221 are connected to the connecting mechanism 2, so that the rotational cooperation between the connecting mechanism 2 and the base 1 can be realized; preferably, the connecting mechanism 2 is located between two spaced first arc-shaped slideways 121, and the two first arc-shaped slideways 121 support the connecting mechanism 2 from both sides respectively, which can improve the overall stability.

[0089] The centers of a plurality of corresponding first arc-shaped slideways 121 are located on the same straight line, and this straight line coincides with the rotating shaft 41. The distances of the plurality of first arc-shaped slideways 121 relative to the rotating shaft 41 can be different; the first arc-shaped slideways 121 can be arc-shaped holes or arc-shaped grooves; preferably, they are arc-shaped holes.

[0090] It can be understood that the larger the radius of the first arc-shaped slideway 121 is, the longer the distance that the first movable member 221 needs to travel to achieve the same rotation angle. Therefore, the rotation angle of the connecting mechanism 2 relative to the base 1 can be adjusted more precisely by controlling the position of the first movable member 221 in the first arc-shaped slideway 121, thereby improving the accuracy of the rotation angle of the drill bit holder 3.

[0091] To prevent the first movable member 221 from rotating on its own in the first arc-shaped slideway 121, the first movable member 221 can be configured as a strip-shaped structure with a slight arc, as shown in Figure 13 ; alternatively, a hinge structure can be provided at the center of the circle of the first arc-shaped slideway 121 to hinge-connect the connecting mechanism 2 and the base 1.

[0092] Preferably, the rotating shaft 31 can rotate relative to the rotating shaft 41 by 120° or more; as shown in Figure 1-5 , the inclination angle of the rotating shaft 31 when it is perpendicular to the placement surface 111 can be set to 0°, and the rotating shaft 31 can rotate relative to the rotating shaft 41 by 60° or more in both side directions to meet the inclination requirements of most usage scenarios. Of course, the rotating shaft 31 can also be configured to rotate by 60° or more to one side, as shown in Figure 9 .

[0093] Preferably, angle scales are provided on the periphery of the first arc-shaped slideway 121; arc-shaped scales can be provided on one or both sides of the first arc-shaped slideway 121, and the angles corresponding to each scale are marked. A pointer can be provided on the connecting mechanism 2 to indicate the angle scale; through the angle scale and the pointer, the user can easily observe the rotation angle of the connecting mechanism 2 relative to the base 1, thereby providing a reference for angle adjustment.

[0094] Preferably, a locking member is further included, and the locking member is used to lock the position of the first movable member 221 relative to the first arc-shaped slideway 121. The locking member can be a buckle 124 as shown in Figure 9 . The buckle 124 can include a hinged handle and a connecting member (such as a screw), the connecting member is connected to the free end of the first movable member 221, and a protrusion is provided at the end of the handle near the hinge point. The protrusion can be pressed against the engaging member 12 and the connecting mechanism 2 by rotating the handle to achieve locking; the locking member can also be a turning handle 125 as shown in Figure 1 . A connecting screw is provided at the end of the turning handle 125, and the connecting screw can be threadedly connected to the connecting mechanism 2. By further screwing, the end of the turning handle 125 presses against the engaging member 12 and the connecting mechanism 2 to achieve locking.

[0095] Preferably, expansion holes 112 are provided around the bottom plate 11, and the expansion holes 112 are used to connect accessories.

[0096] The expansion holes 112 can be threaded holes provided on the four side surfaces of the bottom plate 11. Through the expansion holes 112, the user can select the required accessories for assembly according to different needs, so as to meet the usage requirements in different scenarios.

[0097] Further preferably, the accessories are at least one of an extension base 113 (as shown in Figure 6 ), a footrest 114 (as shown in Figure 11 ), an extension arm 115 and a fixing clip; wherein: the extension base 113 can be connected to the expansion hole 112 through a support screw. The extension base 113 has an upper end surface flush with the placement surface 111 and a lower end surface flush with the lower surface of the bottom plate 11. The extension base 113 can be placed on a certain tabletop together with the bottom plate 11 and support larger components through the upper end surface. The footrest 114 can be connected to the expansion hole 112 through a bolt. The footrest 114 is provided with a lower surface approximately flush with the bottom plate 11, and the user can step on the footrest 114 to improve the stability of the drilling table. The extension arm 115 can be connected to the expansion hole 112 through a bolt (not shown in the figure). The extension arm 115 can be a strip-shaped block, and both ends thereof extend out of the base 11. A locking screw rod 117 similar to that described in Figure 11 can be installed on the extension arm 115. A plurality of locking screw rods 117 are symmetrically distributed and penetrate through a vertical member perpendicular to the surface of the bottom plate 11, and the base 1 can be fixed to a certain structural member by screwing the symmetrically arranged locking screw rods 117. The fixing clip includes two clamping plates that can approach each other, and the bottom plate 11 can be fixed by clamping the edge of a table or the like with the two clamping plates.

[0098] Preferably, at least four connection holes 118 are provided on the surface of the bottom plate 11 close to the joint 12. The four connection holes 118 are circumferentially arranged around the intersection point of the axis of the drill bit seat 3 and the rotating shaft 41. The four connection holes 118 are arranged in a rectangular distribution. The connection holes 118 are used to connect the extension arm 115 or the PIN pins 213, and two PIN pins 213 can be installed diagonally.

[0099] The side wall of the connection hole 118 can be provided with threads or not; as shown in Figure 11 , in some embodiments, the extension arm 115 can also be installed on the connection hole 118 on the surface of the bottom plate 11. Both ends of the extension arm 115 extend out of the base 11, and a locking screw rod 117 as described in Figure 11 can be installed. The base 1 is fixed to a certain structural member through the locking screw rod 117. Further preferably, the upper end surfaces of several bolts for installing the extension arm 115 are flush, and the workpiece 5 can be placed on the upper end surfaces of these bolts.

[0100] The connecting hole 118 can also be used to install the PIN pin 213. The PIN pin 213 includes a body portion in the shape of an approximate cylinder and a fitting portion for fitting with the connecting hole 118. Insert the fitting portion of the PIN pin 213 into the connecting hole 118, and its body portion protrudes from the surface of the bottom plate 11. Refer to Figure 16 ; There are at least three installation methods for the two PIN pins 213: One is that the two PIN pins 213 are installed diagonally. As shown in Figure 15 , both sides of the strip-shaped workpiece 5 can respectively abut against the two diagonally installed PIN pins 213. Since the intersection point of the axis of the drill bit holder 3 and the rotating shaft 41 is located at the midpoint of the connection line of the two diagonally installed PIN pins 213, at this time, the center of the workpiece 5 in the width direction is also exactly located on the axis of the drill bit holder 3, so that a hole can be drilled at the middle position of the workpiece 5; The second is that the two PIN pins 213 are installed on the same side of the rotating shaft 41 and can act as a baffle; The third is that the two PIN pins 213 are installed in the two connecting holes 118 close to the same joint 12 and can act as a baffle in another direction.

[0101] Preferably, a middle through hole penetrating up and down is provided on the bottom plate 11. As shown in Figure 1 , the middle through hole is located in the orientation of the drill bit holder 3, which can leave a receiving space for the end of the drill bit 4 to pass through the workpiece 5 and reduce the risk of the drill bit 4 damaging the base 11.

[0102] Preferably, a V-shaped groove 116 is provided on the bottom plate 11. The V-shaped grooves 116 can be distributed in a strip shape on the surface of the bottom plate 11. The two side walls of the V-shaped groove 116 that are inclined to each other can assist in fixing the cylindrical workpiece 5 to facilitate drilling on the cylindrical workpiece 5.

[0103] In one or several preferred embodiments, a second arc-shaped slideway 122 concentric with the first arc-shaped slideway 121 is further provided on the joint 12. A second movable member 222 is slidably fitted in the second arc-shaped slideway 122, and the second movable member 222 is connected to the connecting mechanism 2.

[0104] As shown in Figures 12-13 , the second arc-shaped slideway 122 can be arranged on the same side as the first arc-shaped slideway 121, and the centers of the two coincide or are approximately coincident. The radius of the second arc-shaped slideway 122 can be greater than or less than the radius of the first arc-shaped slideway 121; Preferably, it is less than the radius of the first arc-shaped slideway 121.

[0105] A second movable member 222 is slidably fitted in the second arc-shaped slideway 122. The second movable member 222 can be a cylinder or a strip-shaped structure with a slight arc similar to the first movable member 221. The second movable member 222 is connected to the connecting mechanism 2; Through the cooperation and connection of the second arc-shaped slideway 122 and the second movable member 222, the constraint during the rotation of the connecting mechanism 2 can be increased, and the stability can be improved.

[0106] The second arc-shaped slideway 122 can be an arc-shaped hole or an arc-shaped groove, preferably an arc-shaped groove.

[0107] In one or several preferred embodiments, an arc-shaped edge surface 123 co-centric with the first arc-shaped slideway 121 is provided on one side of the engaging member 12 away from the bottom plate 11, and an arc-shaped abutting surface 223 adapted to the arc-shaped edge surface 123 is provided on the connecting mechanism 2, and the arc-shaped abutting surface 223 abuts against the arc-shaped edge surface 123.

[0108] As Figures 12-13 shown, the arc-shaped abutting surface 223 and the arc-shaped edge surface 123 can increase the constraint when the connecting mechanism 2 rotates by abutting against each other, so as to improve the stability; the centers of the arc-shaped abutting surface 223 and the arc-shaped edge surface 123 coincide or approximately coincide with the center of the first arc-shaped slideway 121.

[0109] In one or several preferred embodiments, the connecting mechanism 2 includes an upper seat body 21, a lower seat body 22 and a column 23. The lower seat body 22 is connected to the base 1, the column 23 is arranged on the lower seat body 22, and the upper seat body 21 can move closer to or away from the lower seat body 22 along the column 23; the drill bit seat 3 is installed on the upper seat body 21.

[0110] The connection relationship between the upper seat body 21 and the lower seat body 22 enables the upper seat body 21 to move closer to or away from the lower seat body 22. The drill bit seat 3 is arranged on the upper seat body 21. After the angle is adjusted, the drill bit 4 can be brought closer to the workpiece 5 by pushing the upper seat body 21 or the drill bit seat 3, so as to drill holes in the workpiece 5.

[0111] Optionally, both the upper seat body 21 and the lower seat body 22 are block-shaped components; the first movable member 221, the second movable member 222, and the arc-shaped abutting surface 223 can all be arranged on the lower seat body 22.

[0112] Preferably, to facilitate the user to observe the state of the drill bit 4, a slot adapted to the drill bit 4 can be provided on the lower seat body 22, and one side of the slot is open, which is convenient to observe the drill bit 4 from the side.

[0113] To make the connection between the upper seat body 21 and the drill bit seat 3 tight and allow the drill bit seat 3 to rotate self, the upper seat body 21 can be connected to the drill bit seat 3 through a bearing; as Figures 7-8As shown, the drill bit holder 3 includes a head and a shank. In some embodiments, the shank serves as a rotating shaft 31. A through hole that penetrates up and down is provided in the middle of the upper seat body 21. Enlarged sections can be provided at both the upper and lower ends of the through hole. Bearings 211 are placed in the enlarged sections. The shank of the drill bit holder 3 passes through the through hole and the bearings 211. A ring flange is provided at the lower part of the shank of the drill bit holder 3 to prevent the lower bearings 211 from falling off. A threaded section is provided at the part where the shank extends out of the upper bearing 211. The upper bearings 211 can be locked by cooperating with the threaded section through a nut 212 to prevent the bearings 211 from coming out.

[0114] The shank of the drill bit holder 3 can extend upward out of the upper seat body 21 for connection with a driving device such as an electric drill.

[0115] Preferably, it includes at least two columns 23, and the upper seat body 21 is slidably engaged with at least two columns 23. As Figure 1 、 9 shown, setting multiple columns 23 to be slidably engaged with the upper seat body 21 can improve the sliding stability of the upper seat body 21, and thus improve the drilling accuracy.

[0116] More preferably, an elastic member 231 is provided on at least one column 23. The elastic member 231 can drive the upper seat body 21 away from the lower seat body 22. The elastic member 231 can be a compression spring, a tension spring or other elastic structural members with a restoring force. It can be understood that when the lower seat body 22 is located below the upper seat body 21, due to the downward gravity direction, it is relatively easy to push the upper seat body 21 to move closer to the lower seat body, while it is relatively laborious to push the upper seat body 21 to move away from the lower seat body 22. Therefore, by providing the elastic member 231 and using the elastic restoring force, the physical effort consumed by the user to push the upper seat body 21 away from the base 1 can be saved. Preferably, an elastic member 231 with stronger elasticity can be used so that the elastic member 231 can overcome the gravity of the upper structures such as the upper seat body 21 and the drill bit holder 3. In this way, when in use, the upper seat body 21 can be slowly pulled closer, and the upper seat body 21 can also be easily pushed away.

[0117] More preferably, a blocking member 232 is provided on at least one column 23. The position of the blocking member 232 on the column 23 is adjustable, and the blocking member 232 can block the upper seat body 21. The blocking member 232 can be an annular boss sleeved on the column 23. The blocking member 232 can be locked at different positions on the column 23 to prevent the upper seat body 21 from continuing to move downward. By restricting the movement range of the upper seat body 21, the displacement of the drill bit 4 installed on the drill bit holder 3 moving downward can be restricted, and the probability of damaging the drill bit 4 or the lower table due to excessive downward movement amplitude can be reduced.

[0118] For this embodiment, the number of columns 23 is two, and the two columns 23 are arranged at intervals along the rotation axis 41.

[0119] In one or several preferred embodiments, a guiding disk 224 is provided on the lower seat body 22. At least two guiding holes 225 are circumferentially arranged on the guiding disk 224. The at least two guiding holes 225 have different apertures, and each guiding hole 225 can be coaxially arranged with the rotary shaft 31.

[0120] The guiding disk 224 is arranged on the lower seat body, and the guiding holes are spaced from the drill bit seat 3, which can be used as a reference for adjusting the posture of the drill bit 4. During use, the upper part of the drill bit 4 is installed on the drill bit seat 3, and the lower part passes through the guiding holes 225, so as to judge whether the drill bit 4 is accurately installed according to the positional relationship between the drill bit 4 and the side wall of the guiding hole 225; moreover, the side wall of the guiding hole 225 can restrict the drill bit 4, which can reduce the probability of the drill bit 4 deviating during use and is beneficial to improving the drilling accuracy.

[0121] A plurality of guiding holes 225 with different apertures are provided on the guiding disk 224, which can be used to cooperate with drill bits 4 of different specifications to expand the usage scenarios; in some embodiments, the centers of the circumferentially arranged guiding holes 225 are rotatably connected to the lower seat body 22, and positioning pins and positioning grooves that can be in concave-convex fit can be arranged between the contact surfaces of the guiding disk 224 and the lower seat body 22 to indicate whether the guiding disk is in the correct position. For example, positioning pins can be arranged on the upper surface of the lower seat body 22, and several positioning grooves are circumferentially arranged on the lower surface of the guiding disk 224. When a positioning pin is inserted into a certain positioning groove, a certain guiding hole 225 is coaxially arranged with the rotary shaft 31, and the guiding disk 224 and the lower seat body 22 can be fastened by bolts. As Figure 9 shown, when the positioning pin cooperates with the positioning groove, the bolts can be screwed to make the guiding disk 224 close to the lower seat body 22, so as to relatively fix the position of the guiding hole 225.

[0122] In some embodiments, the PIN pins can be received in the upper seat body 21. For example, two placement holes are provided on the upper seat body 21, and the PIN pins are placed in the two placement holes and taken out from the placement holes when needed.

[0123] In some embodiments, a handle is provided on the upper part of the connecting mechanism 2 for lifting or supporting.

[0124] Embodiment 2

[0125] A drill provided in this embodiment includes a drill bit 4, a driving device, and a variable-angle drill table as described in Embodiment 1. The drill bit 4 is installed on the drill bit seat 3, and the driving device can drive the drill bit seat 3 to rotate around the rotary shaft 31.

[0126] A drill provided by the utility model can, by using the variable-angle drill table as described above, conveniently and flexibly adjust the inclination angle of the drill bit holder 3 relative to the workpiece 5 under the condition of achieving high drilling accuracy, so as to adjust the inclination angle of the drill bit 4 mounted on the drill bit holder 3 relative to the base 1 at rest, and thus cut drills with different inclination angles to meet the needs of various usage scenarios.

[0127] The specifications and shapes of the drill bits 4 can be selected according to the usage needs. The drill bits 4 can be mounted on the drill bit holders 3 to conveniently and flexibly replace different drill bits 4. The driving device can be a rotary belt sleeved on the drill bit holder 3, and the motor drives the rotary belt to rotate, thereby driving the drill bit holder 3 to rotate around the rotary shaft 31; it can also be the body of an electric drill. At least part of the handle of the drill bit holder 3 can be extended out of the end face of the upper seat body 21 away from the base 1, and the body of the electric drill can be sleeved on the handle of the drill bit holder 3 to drive the drill bit holder 3 to rotate by the electric drill.

[0128] Preferably, at least three clamping claws 32 are circumferentially arranged on the inner periphery of the installation cavity of the drill bit holder 3. Refer to Figure 14 , when the drill bit holder 3 is screwed, the three clamping claws 32 can uniformly approach the drill bit 4 from three directions, lock the drill bit 4 at the center of the drill bit holder 3, and achieve self-centering.

[0129] Preferred usage method:

[0130] Select the drill bit 4, mount the drill bit 4 on the drill bit holder 3 and lock it. Mount the driving device, such as the body of an electric drill, on the drill bit holder 3. Place the workpiece 5 to be drilled on the placement surface 111 of the bottom plate 11. Rotate the connecting mechanism 2 to incline the drill bit 4 relative to the workpiece 5 to the required angle, and lock the inclination angle of the connecting mechanism 2. Start the driving device, push the end of the drill bit 4 towards the workpiece 5, and cut a drill on the workpiece 5. Push the drill bit 4 away from the workpiece 5 to perform the next drilling operation.

[0131] The above are only the preferred embodiments of the utility model and are not intended to limit the utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the utility model shall be included within the protection scope of the utility model.

Claims

1. A variable angle drilling platform, characterized in that: The invention comprises a base (1) and a connecting mechanism (2) which are rotatably matched with each other via a rotating shaft (41); a rotating shaft (31) and a drill seat (3) are arranged on the connecting mechanism (2); the drill seat (3) can rotate around the rotating shaft (31); and an angle is formed between the rotating shaft (31) and the rotating shaft (41).

2. The variable angle drilling platform according to claim 1, characterized in that: The rotary shaft (31) and the rotation shaft (41) are perpendicular to each other; and the drill bit seat (3) points to the rotation shaft (41).

3. The variable angle drilling platform according to claim 2, characterized in that: The base (1) comprises a bottom plate (11) and a joint piece (12) arranged on the bottom plate (11); the bottom plate (11) has a placement surface (111); the joint piece (12) is provided with at least two first arc-shaped slideways (121) spaced apart and corresponding to each other; the first arc-shaped slideway (121) is slidably matched with a first movable piece (221); the first movable piece (221) is connected to the connection mechanism (2).

4. The variable angle drilling platform according to claim 3, characterized in that: The joint member (12) is also provided with a second arc-shaped slideway (122) coaxial with the first arc-shaped slideway (121); the second arc-shaped slideway (122) is slidably matched with a second movable member (222); the second movable member (222) is connected to the connection mechanism (2); and / or, A curved edge surface (123) coaxial with the first curved slideway (121) is provided on a side of the joint member (12) away from the bottom plate (11), and a curved abutting surface (223) adapted to the curved edge surface (123) is provided on the connecting mechanism (2), and the curved abutting surface (223) is in contact with the curved edge surface (123).

5. The variable angle drilling platform according to claim 3, characterized in that: The base plate (11) is provided with expansion holes (112) around its periphery, and the expansion holes (112) are used to connect accessories, wherein the accessories are at least one of an extension seat (113), a footrest (114), an extension arm (115) and a fixing clip; and or, At least four connection holes (118) are provided on one side of the bottom plate (11) close to the joint member (12); the four connection holes (118) are circumferentially arranged around the intersection of the axis of the drill seat (3) and the rotation axis (41); the four connection holes (118) are distributed in a rectangular shape; the connection holes (118) are used to connect the extension arm (115) or the PIN needle (213); and the two PIN needles (213) can be installed diagonally; and / or, It also comprises a locking member, which is used to lock the position of the first movable member (221) relative to the first arc-shaped slideway (121).

6. The variable angle drilling platform according to claim 3, characterized in that: The bottom plate (11) is provided with a V-shaped groove (116), the axis of the V-shaped groove (116) is perpendicular to the rotation axis (41), and the rotary axis (31) points to the axis of the V-shaped groove (116); And / or, the periphery of the first arc-shaped slideway (121) is provided with angle scales; And / or, the rotary shaft (31) can rotate 120° or more relative to the rotating shaft (41).

7. The variable angle drilling platform according to claim 2, characterized in that: The connecting mechanism (2) comprises an upper seat body (21), a lower seat body (22) and a column (23); the lower seat body (22) is connected to the base (1); the column (23) is arranged on the lower seat body (22); the upper seat body (21) can approach or move away from the lower seat body (22) along the column (23); and the drill seat (3) is installed on the upper seat body (21).

8. The variable angle drilling platform according to claim 7, characterized in that: It comprises at least two upright posts (23), and the upper seat (21) is slidably matched with the at least two upright posts (23); At least one of the upright posts (23) is provided with an elastic member (231), and the elastic member (231) is capable of driving the upper seat body (21) away from the lower seat body (22); A blocking member (232) is provided on at least one of the columns (23); the position of the blocking member (232) on the column (23) is adjustable; and the blocking member (232) is capable of blocking the upper seat (21).

9. The variable angle drilling platform according to claim 7, characterized in that: The lower seat body (22) is provided with a guide plate (224), and at least two guide holes (225) are arranged circumferentially on the guide plate (224). The at least two guide holes (225) have different apertures, and each guide hole (225) can be coaxially arranged with the rotary shaft (31).

10. A drilling tool, characterized in that: It comprises a drill bit (4), a driving device and a variable angle drilling platform as described in any one of claims 1 to 9, wherein the drill bit (4) is mounted on the drill bit seat (3), and the driving device can drive the drill bit seat (3) to rotate around the rotating axis (31).

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