CN220862816U - Drill bit installation mechanism for machining - Google Patents

Abstract

The utility model belongs to the technical field of drill bit installation, and particularly relates to a drill bit installation mechanism for machining, which comprises a cutter handle, wherein a threaded through hole is fixedly formed in the middle position inside the cutter handle, a circular ring is arranged at the bottom end of the cutter handle, a plurality of circular truncated cone valve bodies are pushed to be mutually closed through the circular arc inner wall of the circular ring, the drill bit body is clamped and fixed through the circular truncated cone valve bodies, when the drill bit body is dismounted, the circular ring is pushed upwards through holding the circular ring by hand, so that a conical spring is compressed, the circular truncated cone valve bodies are mutually propped up under the elastic acting force of each other, then the drill bit body can be taken down from the inside of a drill bit installation device, and the drill bit body is limited under the action of a limiting disc II, so that the drill bit body is conveniently mounted and dismounted; the drill bit installation device is limited under the action of the second limiting disc, so that the drill bit body is conveniently limited when the drill bit body is installed, and the drill bit is convenient to install and detach.

Description

Drill bit installation mechanism for machining

Technical Field

The utility model belongs to the technical field of drill bit installation, and particularly relates to a drill bit installation mechanism for machining.

Background

The machining refers to the process of changing the external dimension or performance of a workpiece through mechanical equipment, the machining mode can be divided into cutting machining and pressure machining according to the difference of machining modes, the drill bit is machined on a solid material, when the drill bit is used, the drill bit is installed, a proper drill bit is usually selected according to practical conditions by a worker during installation, the drill bit is usually inserted into a hole of a cutter handle for installing the drill bit, the position of the depth of the hole for installing the drill bit is adjusted next time, the required length is adjusted according to practical conditions, the cutter handle and a locking sleeve on the cutter handle are rotated relatively, the drill bit is fixedly locked on the cutter handle, in the process of rotating the locking sleeve relative to the cutter handle, an external tool is sometimes needed to rotate, the operation is complicated in the process, and the installation and the disassembly of the drill bit are inconvenient. Also known in the prior art are, for example, the following application numbers: the utility model provides a drill bit of CN 201921091361.6's easy to assemble, discloses through aligning the card strip of locating sleeve both sides in breach department to move into the rotating head is inside horizontally, makes card strip and U type groove align, carries out preliminary location to the drill bit main part, later clockwise will first location axle and second location axle precess first screw thread groove and second screw thread groove respectively; the drill bit installation of this patent requires multiple tightening of the locating shaft and alignment operations, which are also complicated and inconvenient for the installation and removal of the drill bit.

Disclosure of utility model

The utility model provides a drill bit mounting mechanism for machining, which aims to overcome the defects of the prior art.

In order to achieve the above object, the present utility model provides the following technical solutions: the utility model relates to a drill bit mounting mechanism for machining, which comprises a cutter handle, a threaded through hole is fixedly arranged in the middle of the inside of the cutter handle in a penetrating way, a circular ring is arranged at the bottom end of the cutter handle, a conical spring is arranged between the circular ring and the cutter handle, the top end of the conical spring is propped at the bottom end of the cutter handle, the bottom end of the conical spring is propped at the upper end of the circular ring, a drill bit mounting device is arranged on the cutter handle, the drill bit mounting device comprises a stud connected with the threaded through hole in a threaded way, a plurality of round platform valve bodies which are circumferentially and equidistantly arranged are fixedly arranged at the bottom end of the stud, a circular arc piece is fixedly arranged at the bottom end of the round platform valve body, a limit disc valve body is fixedly arranged at the outer edge of the bottom end, a convex column mounting groove is formed at the inner side of the top end of the circular arc piece, a circular arc groove is formed at the bottom end of the cylinder mounting groove, the circular ring inner wall size is matched with the outer wall size of the cylinder mounting groove, a drill bit body is internally mounted on the square column body, the drill bit body comprises a drill bit, the upper end is fixedly arranged at the upper end of the same axial direction, a plurality of rotary shafts are coaxially arranged at the rotary shaft, a plurality of rotary shaft square column mounting grooves are coaxially arranged at the rotary shaft positions of the rotary shaft mounting groove, a plurality of the rotary shaft is fixedly arranged at the rotary shaft, a plurality of rotary shaft is fixedly arranged at the rotary shaft groove, and a plurality of rotary shaft square groove is formed at the rotary shaft, and a rotary shaft is mounted inside the rotary shaft, and a rotary shaft is mounted on the rotary shaft, and a rotary device is mounted on the rotary device. When the drill bit body is installed, the circular ring is held by hands, the circular ring moves upwards to enable the conical spring to be compressed, the circular table valve bodies on the drill bit installation device are mutually spread, the upper end of the drill bit body is inserted into the drill bit installation device, specifically, the limit square cylinder on the drill bit body is inserted into the cavity formed by the cylinder installation grooves and is matched with the cavity formed by the cylinder installation grooves, the convex cylinder is inserted into the convex cylinder installation cylinder, the rotating shaft is located in the circular arc groove, then under the action of the thrust of the conical spring, the circular ring is enabled to have a downward movement trend, the circular table valve bodies are pushed to be mutually closed through the circular arc inner wall of the circular ring, the drill bit body is clamped and fixed through the circular table valve bodies, when the drill bit body is detached, the circular ring is pushed upwards through the circular table valve bodies by hand, the conical spring is compressed, then the drill bit body can be removed from the inside of the drill bit installation device, the drill bit body is limited under the action of the limit disc, and the drill bit body is convenient to install and detach.

Optionally, the pivot with fixed limiting plate second that is equipped with between the drill bit, limiting plate second is located limiting plate lamella body's bottom surface limits drill bit installation device under limiting plate second's effect, is convenient for limit the drill bit body when installing the drill bit body.

Optionally, the bottom mounting of handle of a knife is equipped with a plurality of sliding columns that are circumference equidistant range, run through on the ring and be equipped with a plurality of sliding holes that are circumference equidistant range, the sliding column be located sliding connection in the sliding hole with between the ring, through a plurality of sliding columns that are circumference equidistant range of setting, realized making the ring follow the stable reciprocating of direction of sliding column, when ring downwardly moving, the inner wall through the ring is with the mutual stable closure of a plurality of extrusions.

Optionally, the coaxial fixed limiting plate I that is equipped with in bottom of traveller prevents under the effect of limiting plate I that the ring from breaking away from with the cooperation between the traveller, restricts the ring.

Optionally, in the first state: the conical spring is in an elongation state, the bottom end of the circular ring is attached to the upper end of the limiting disc body, the inner wall of the circular ring is attached to the outer wall, a plurality of circular truncated cone body side walls are mutually extruded and attached to form a conical structure, and in a second state: the conical spring is compressed, the conical valve body is in an outward tilting state, the drill bit body is fixed through the conical structure formed by mutual extrusion and lamination between the side walls of the conical valve body, the conical spring is compressed through the upward movement of the circular ring, the conical valve body is in an outward tilting state, and the drill bit body is conveniently mounted in the drill bit mounting device and conveniently taken down from the drill bit mounting device.

Optionally, the size of the truncated cone-shaped structure formed by the truncated cone-shaped valve bodies is reduced from top to bottom, so that the circular ring has a downward movement trend under the elastic acting force of the conical spring, and the truncated cone-shaped valve bodies are stably fixed.

To sum up, compared with the prior art, the beneficial effect of this scheme is:

(1) The circular arc inner wall through the ring promotes each other to close between a plurality of round platform lamella body, presss from both sides tightly fixedly with the drill bit body through a plurality of round platform lamella body, when dismantling the drill bit body, upwards pushes away the ring through holding the ring, makes conical spring compressed, and a plurality of round platform lamella bodies prop up each other under the elastic force between each other, then can take off the drill bit body from drill bit installation device's inside, under limiting plate two's effect, restrict the drill bit body, realized convenient with the drill bit body install and dismantle.

(2) And the drill bit mounting device is limited under the action of the second limiting disc, so that the drill bit body is conveniently limited when the drill bit body is mounted, and the drill bit is convenient to mount and dismount.

(3) Through a plurality of sliding columns that are circumference equidistant arrangement that set up, realized making the ring follow the stable reciprocates of direction of sliding column, when the ring downwardly moving, the inner wall through the ring is with the mutual stable closure of a plurality of extrusions.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a partial cross-sectional view of the structure of the present utility model.

Fig. 3 is an exploded view of the structure of the present utility model.

Fig. 4 shows a bit mounting apparatus of the present utility model.

Fig. 5 is a structural cross-sectional view of the bit mounting apparatus of the present utility model.

Fig. 6 is an enlarged view of the structure of fig. 5 a according to the present utility model.

Fig. 7 is a schematic view of a bit body according to the present utility model.

10. A knife handle; 11. a threaded through hole; 12. a spool; 13. a first limiting disc; 20. a drill bit mounting device; 21. a stud; 22. round platform valve body; 24. arc pieces; 24. limiting disc valve body; 26. a convex column mounting cylinder; 27. a column mounting groove; 28. an arc groove; 30. a circular ring; 31. a sliding through hole; 40. a conical spring; 50. a bit body; 51. a drill bit; 52. a rotating shaft; 53. a second limiting plate; 54. a convex column; 55. chamfering; 56. and limiting the square column body.

Detailed Description

In order to enable those skilled in the art to better understand the present utility model, the following description will make clear and complete descriptions of the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model.

Referring to fig. 1-7, a drill bit mounting mechanism for machining comprises a tool shank 10, a threaded through hole 11 is fixedly arranged in the middle of the inside of the tool shank 10, a circular ring 30 is arranged at the bottom end of the tool shank 10, a conical spring 40 is arranged between the circular ring 30 and the tool shank 10, the top end of the conical spring 40 is propped against the bottom end of the tool shank 10, the bottom end of the conical spring 40 is propped against the upper end of the circular ring 30, a drill bit mounting device 20 is arranged on the tool shank 10, the drill bit mounting device 20 comprises a stud 21 in threaded connection with the threaded through hole 11, a plurality of circular truncated cones 22 which are arranged at equal intervals in circumference are fixedly arranged at the bottom end of the stud 21, circular arc pieces 23 are fixedly arranged at the bottom ends of the circular truncated cones 22, limiting disc petals 24 are fixedly arranged at the outer edges of the bottom ends of the circular arc pieces 23, a convex column mounting cylinder 26 is arranged on the inner side of the top ends of the circular arc pieces 23, the lower side of the convex column installation cylinder 26 is provided with a cylinder installation groove 27, the bottom end of the cylinder installation groove 27 is provided with an arc groove 28, the inner wall size of the circular ring 30 is matched with the outer wall size of the convex column installation cylinder 26, the inside of the drill bit installation device 20 is provided with a drill bit body 50, the drill bit body 50 comprises a drill bit 51, the upper end of the drill bit 51 is coaxially and fixedly provided with a rotating shaft 52, the upper end of the rotating shaft 52 is fixedly provided with a limit square cylinder 56, the upper end of the limit square cylinder 56 is coaxially and fixedly provided with a convex column 54, the convex column 54 is matched with the convex column installation cylinder 26, the edge position of the upper end of the convex column 54 is provided with a chamfer 55, the convex column 54 is positioned in the convex column installation cylinder 26, the limit square cylinder 56 is positioned in a plurality of the cylinder installation grooves 27 and is matched with a cavity formed by the cylinder installation cylinder 27, the rotary shaft 52 is located in the circular arc grooves 28 and is matched with the circular through holes formed by the circular arc grooves 28, when the drill bit mounting mechanism for machining is used, the circular ring 30 is held by hands to move the circular ring 30 upwards to compress the conical spring 40 when the drill bit body 50 is mounted, the circular truncated cone valve bodies 22 on the drill bit mounting device 20 are mutually opened, the upper end of the drill bit body 50 is inserted into the drill bit mounting device 20, specifically, the limit square column 56 on the drill bit body 50 is inserted into the cavity formed by the plurality of column mounting grooves 27 and is matched with the cavity formed by the plurality of column mounting grooves 27, the convex column 54 is inserted into the boss mounting cylinder 26, the rotary shaft 52 is located in the circular arc grooves 28, then under the thrust action of the conical spring 40, the circular ring 30 has a downward movement trend, the circular truncated cone valve bodies 22 are pushed to be mutually closed by the circular inner arc walls of the circular ring 30, the circular truncated cone valve bodies 22 are clamped and fixed by the circular truncated cone valve bodies 50, when the drill bit body 50 is dismounted, and the circular ring 30 is pushed by the circular truncated cone valve bodies 22 to be mutually closed by the circular truncated cone valve bodies, so that the elastic force of the circular truncated cone valve bodies can be conveniently and the circular truncated cone valve bodies 22 can be held by the elastic force of the circular truncated cone valve bodies, and the circular truncated cone valve bodies can be mounted by the cutter body 50, and the cutter body can be conveniently and the cutter body can be mounted by the cutter body.

In this embodiment, a second limiting plate 53 is fixedly disposed between the rotating shaft 52 and the drill bit 51, the second limiting plate 53 is located on the bottom end surface of the limiting plate 24, and the drill bit mounting device 20 is limited under the action of the second limiting plate 53, so that the drill bit body 50 is conveniently limited when the drill bit body 50 is mounted.

In this embodiment, the bottom end fixing of the tool handle 10 is equipped with a plurality of slide posts 12 that are circumference equidistant arrangement, run through on the ring 30 and be equipped with a plurality of slide through-holes 31 that are circumference equidistant arrangement, slide post 12 be located slide through-hole 31 with sliding connection between the ring 30, through a plurality of slide posts 12 that are circumference equidistant arrangement that set up, realized making ring 30 follow the stable reciprocating of direction of slide post 12, when ring 30 downwardly moving, through the inner wall of ring 30 with the mutual stable closure of a plurality of 23 extrusions.

In this embodiment, the first limiting plate 13 is coaxially fixed at the bottom end of the sliding column 12, and the ring 30 is prevented from being separated from the sliding column 12 under the action of the first limiting plate 13, so as to limit the ring 30.

In this embodiment, in the first state: the conical spring 40 is in an elongation state, the bottom end of the circular ring 30 is attached to the upper end of the limiting disc body 24, the inner wall of the circular ring 30 is attached to the outer wall of the circular ring 23, a plurality of circular table body 22 side walls are mutually pressed and attached to form a conical structure, and in a second state: the circular ring 30 moves upwards, the conical spring 40 is compressed, the circular truncated cone body 22 is in an outward tilting state, the drill bit body 50 is fixed through the conical structure formed by mutually extruding and laminating the side walls of the circular truncated cone body 22, the conical spring 40 is compressed through the upward movement of the circular ring 30, the circular truncated cone body 22 is in an outward tilting state, and the drill bit body 50 is conveniently mounted in the drill bit mounting device 20 and conveniently taken down from the drill bit mounting device 20.

Further, the size of the truncated cone-shaped structure formed by the truncated cone-shaped petals 22 is reduced from top to bottom, so that the ring 30 has a downward movement tendency under the elastic force of the conical spring 40, and stable fixation of the truncated cone-shaped petals 22 is realized.

Specific embodiments of the utility model: when the drill bit mounting mechanism for machining is used, the circular ring 30 is held by hands when the drill bit body 50 is mounted, the circular ring 30 is moved upwards to enable the conical spring 40 to be compressed, the circular truncated cone valve bodies 22 on the drill bit mounting device 20 are mutually opened, the upper end of the drill bit body 50 is inserted into the drill bit mounting device 20, specifically, the limit square column 56 on the drill bit body 50 is inserted into a cavity formed by the column mounting grooves 27 and is matched with a cavity formed by the column mounting grooves 27, the convex column 54 is inserted into the convex column mounting cylinder 26, the rotating shaft 52 is positioned in the circular arc groove 28, then the circular ring 30 has a movement trend of moving downwards under the thrust of the conical spring 40, the circular truncated cone valve bodies 22 are pushed to be mutually closed by the circular inner arc wall of the circular ring 30, the circular truncated cone valve bodies 50 are clamped and fixed by the circular truncated cone valve bodies 22, when the drill bit body 50 is dismounted, the circular ring 30 is pushed upwards by holding the circular truncated cone spring 40, the conical spring 40 is compressed, the circular truncated cone valve bodies 22 are elastically held between each other, and then the circular truncated cone valve bodies 22 are mutually opened, and the cutter body 50 is mounted in the cutter body is clamped by the cutter body, and the cutter body is conveniently and the cutter body is mounted in the cutter body.

Certain terms are used throughout the description and claims to refer to particular components. Those of skill in the art will appreciate that a hardware manufacturer may refer to the same component by different names. The description and claims do not take the form of an element differentiated by name, but rather by functionality. As used throughout the specification and claims, the word "comprise" is an open-ended term, and thus should be interpreted to mean "include, but not limited to. By "substantially" is meant that within an acceptable error range, a person skilled in the art is able to solve the technical problem within a certain error range, substantially achieving the technical effect.

It should be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a product or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such product or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a commodity or system comprising such elements.

While the foregoing description illustrates and describes the preferred embodiments of the present application, it is to be understood that the application is not limited to the forms disclosed herein, but is not to be construed as limited to other embodiments, and is capable of numerous other combinations, modifications and environments and is capable of changes or modifications within the scope of the inventive concept as expressed herein, either as a result of the foregoing teachings or as a result of the knowledge or technology of the relevant art. And that modifications and variations which do not depart from the spirit and scope of the application are intended to be within the scope of the appended claims.

Claims (7)

1. The utility model provides a drill bit installation mechanism for machining, its characterized in that, including handle of a knife (10), the fixed screw thread through-hole (11) that runs through of intermediate position inside handle of a knife (10), the bottom of handle of a knife (10) is equipped with ring (30), be equipped with conical spring (40) between ring (30) and handle of a knife (10), the top of conical spring (40) pushes up the bottom at handle of a knife (10), the bottom of conical spring (40) pushes up the upper end at ring (30), be equipped with drill bit installation device (20) on handle of a knife (10), drill bit installation device (20) include with threaded connection's between screw thread through-hole (11) double-screw bolt (21), the bottom mounting of double-screw bolt (21) is equipped with a plurality of round platform lamella (22) that are circumference equidistant range, the bottom mounting of round platform lamella (22) is equipped with circular arc piece (23), the outward flange fixing of circular arc piece (23) bottom is equipped with spacing lamella (24), projection mounting cylinder (26) have been seted up on the inboard on top of circular arc piece (23), projection (26) side mounting cylinder (27) has the circular arc piece (27) and circular arc inner wall (30) size has been seted up, the drill bit mounting device (20) is internally provided with a drill bit body (50).

2. The drill bit mounting mechanism for machining according to claim 1, wherein the drill bit body (50) comprises a drill bit (51), a rotating shaft (52) is coaxially and fixedly arranged at the upper end of the drill bit (51), a limit square column (56) is fixedly arranged at the upper end of the rotating shaft (52), a protruding column (54) is coaxially and fixedly arranged at the upper end of the limit square column (56), the protruding column (54) is matched with the protruding column mounting cylinder (26), a chamfer (55) is formed at the edge position of the upper end of the protruding column (54), the protruding column (54) is located in the protruding column mounting cylinder (26), the limit square column (56) is located in the plurality of column mounting grooves (27) and matched with a cavity formed by the plurality of column mounting grooves (27), and the rotating shaft (52) is located in the plurality of circular arc grooves (28) and matched with circumferential through holes formed by the plurality of circular arc grooves (28).

3. The drill bit mounting mechanism for machining according to claim 2, wherein a second limit plate (53) is fixedly arranged between the rotating shaft (52) and the drill bit (51), and the second limit plate (53) is located on the bottom end surface of the limit plate flap body (24).

4. The drill bit mounting mechanism for machining according to claim 1, wherein a plurality of sliding columns (12) which are arranged at equal intervals in a circumference are fixedly arranged at the bottom end of the tool shank (10), a plurality of sliding through holes (31) which are arranged at equal intervals in a circumference are penetrated through the circular ring (30), and the sliding columns (12) are positioned in the sliding through holes (31) and are in sliding connection with the circular ring (30).

5. The drill bit mounting mechanism for machining according to claim 4, wherein the bottom end of the spool (12) is coaxially fixed with a first limiting plate (13).

6. The drill mounting mechanism for machining according to claim 1, wherein in the first state: the conical spring (40) is in an elongation state, the bottom end of the circular ring (30) is jointed with the upper end of the limiting disc body (24), the inner wall of the circular ring (30) is jointed with the outer wall of the circular table body (23), a plurality of circular table body (22) side walls are mutually extruded and jointed to form a conical structure, and in a second state: the circular ring (30) moves upwards, the conical spring (40) is compressed, and the round platform valve body (22) is in an outward tilting state.

7. A drill bit mounting mechanism for machining according to claim 1, wherein the frustoconical structures formed by the plurality of frustoconical petals (22) decrease in size from top to bottom.