CN217071516U

CN217071516U - Rear end screwing, pulling and pressing type knife handle

Info

Publication number: CN217071516U
Application number: CN202123150954.5U
Authority: CN
Inventors: 陈长硈; 王荪馨; 韩洪
Original assignee: Jiangsu Shuangyang Machinery Technology Co ltd
Current assignee: Jiangsu Shuangyang Machinery Technology Co ltd
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-07-29
Anticipated expiration: 2031-12-15

Abstract

The utility model discloses a back end revolves wrong pull compact form handle of a knife, the axle center of the handle of a knife body, be equipped with the bell mouth with the axle center intercommunication in proper order by cutter holder to handle of a knife holder hold-in, the pull hole, revolve wrong hole and threaded connection hole A, be equipped with a section of thick bamboo clamp with the axle center in the bell mouth, the one end and the bell mouth matching of cylindric clamp lateral wall, the other end that the cylindric pressed from both sides the lateral wall stretches into in the pull hole, and match with the pull hole, the cylindric presss from both sides the axle center department that corresponds to the cutter holder and is equipped with the centre gripping groove that matches with the cutter external diameter, still be equipped with the pull bolt in the handle of a knife body, the pull bolt passes threaded connection hole A and revolves wrong hole respectively in proper order towards the one end of bell mouth, stretch into the pull hole, and the threaded connection hole B threaded connection who establishes with the cylindric clamp tip axle center that stretches into the pull hole. According to the structure, the utility model discloses a back end is twisted soon pull and is pressed mode handle of a knife stretches into and operates from the one end of handle of a knife dorsad cutter through the long handle spanner to realized the quick replacement of cutter, convenient operation moreover.

Description

Rear end screwing, pulling and pressing type knife handle

Technical Field

The utility model relates to a machining center's cutter handle of a knife's technical field, concretely relates to rear end revolves wrong pull compact form handle of a knife.

Background

In the machining process, various props are needed to machine a workpiece, and a cutter is needed to be installed on a machine tool through a cutter handle, so that the quality of the cutter handle can influence the machining precision, the machining quality and the machining service life of the props. Along with the optimization of the machining mode and the higher automation degree of the machine tool, the machining efficiency is higher and higher, and the machining speed is higher and higher, so that the test is provided for the service life of the cutter. After the tool is used for a long time, the tool needs to be replaced. The cutter is relatively simple when the cutter is replaced by the common cutter handle, but a cutter handle is arranged on the market at present, in order to reduce the interference phenomenon of the cutter handle in the machining process as much as possible, the cutter handle is of a cone structure with longer axial length, if the cutter clamping mode of the traditional cutter handle is still adopted for clamping the cutter, although the cutter can be fixed, the interference phenomenon can occur when the machining is carried out due to the fact that the device for fixing the cutter handle cannot be reduced, the fixed cutter can be caused to be knocked off due to the fact that the clamping part of the fixed cutter in the machining process is less, and the cutter handle or the cutter which is easy to fly out can be directly scrapped and cannot be used, even the cutter handle or the cutter can fly out at high speed in the machining process to cause great influence on equipment and even cause safety accidents.

Disclosure of Invention

The utility model aims to provide a: the defects of the prior art are overcome, the rear-end screwing drawing pressing type knife handle is provided, and a long-handle wrench is used for stretching in from one end of the knife handle back to a knife and operating, so that the knife can be quickly replaced, and the operation is convenient; through the action of the guide limiting pipe, the long-handle wrench can be limited and guided when extending into the screwing hole, so that the long-handle wrench can extend into the polygonal grass conveniently, and the axial limiting of the drawing bolt can be realized in the screwing process; the annular groove is coaxially arranged at one end of the screwing hole, so that the internal stress caused by deformation in the process of clamping and fixing the cutter can not be eliminated.

The utility model adopts the technical proposal that:

the rear-end screwing, pulling and pressing type knife handle comprises a knife handle body, wherein a tapered hole, a pulling hole, a screwing hole and a threaded connecting hole A which are sequentially communicated with the same axis are formed in the axis of the knife handle body from a knife clamping end to a knife handle clamping end, the diameter of an orifice of the tapered hole, which corresponds to the knife clamping end, is larger than that of an orifice of the tapered hole, which is connected with the pulling hole, the diameter of the pulling hole is equal to that of the orifice of the tapered hole, which is connected with the pulling hole, and is smaller than that of the screwing hole, and the diameter of the screwing hole is smaller than that of the threaded connecting hole A; the utility model discloses a tool holder, including the taper hole, the one end of cylindric clamp lateral wall is equipped with the cylindric clamp with the axle center in the taper hole, the one end of cylindric clamp lateral wall matches with the taper hole, the other end that the cylindric presss from both sides the lateral wall stretches into in the pull hole and matches with the pull hole, the axle center department that the cylindric clamp corresponds to the cutter clamping end is equipped with the centre gripping groove that matches with the cutter external diameter, the internal pull bolt that still is equipped with of handle of a knife, the pull bolt passes threaded connection hole A respectively in proper order towards the one end of taper hole and revolves the screw hole, stretches into the pull hole to with stretch into the threaded connection hole B threaded connection that the downthehole cylindric clamp tip axle center of pull established, the nut of pull bolt is located and revolves the screw hole, the tip of the handle of tool body still is connected through threaded connection hole A and is fixed with the blind rivet.

The utility model discloses the further improvement scheme is, the lateral wall of cylindric clamp, be equipped with a plurality of kerfs corresponding to centre gripping trench position department, the kerfs intercommunication centre gripping groove and the cylindric outside of pressing from both sides to the kerfs are followed the axle center direction that the cylindric pressed from both sides and are run through to the cylindric clamp and are corresponding to the cutter exposed core.

The utility model discloses a further improvement scheme is, the side channel uses the axle center of section of thick bamboo clamp as central evenly distributed, forms petal column structure.

The utility model discloses further improve the scheme and be, the internal diameter in centre gripping groove is greater than threaded connection hole B's the biggest internal diameter.

The utility model discloses a further improvement is, it is equipped with the bell groove with the axle center to revolve the junction of twist hole and pull hole, the internal diameter of bell groove reduces along the direction towards the cutter exposed core, the nut diameter less than or equal to bell groove of pull bolt is the internal diameter of cutter exposed core, and is greater than the internal diameter of bell groove towards the cutter exposed core.

The utility model discloses a further improvement is, it is equipped with the spacing pipe of direction with the axle center to revolve twisted downthehole, the one end of the spacing outside of tubes lateral wall of direction, cutter exposed to the back is equipped with the external screw thread that matches with threaded connection hole A, when the spacing pipe of direction passes through external screw thread and threaded connection hole A fixed connection, the axial distance that the spacing pipe of direction is less than the axial length of nut to the one end of cutter exposed to the cutter clamped end and the nut that is fixed in the pull bolt of section of thick bamboo clamp, the axle center of the spacing pipe of direction is equipped with axial through hole with the axle center, axial through hole's aperture is less than the nut diameter of pull bolt, and is greater than the maximum diagonal length of the regular polygon groove that the nut tip of pull bolt established with the axle center.

The utility model discloses a further improvement is, the spacing pipe of direction is equipped with the connector with threaded connection hole A accordant connection with the axle center, the axial through hole runs through the connector.

The utility model discloses a further improvement scheme is, the connector is equipped with a set of notch of revolving soon to the double-phase offside symmetry at least of tip of cutter exposed to the hand of tool holder.

The utility model discloses a further improvement is, the blind rivet is towards the one end of the handle of a knife body with axle center fixedly connected with connector, the connector is equipped with the threaded rod that matches with threaded connection hole A.

The utility model discloses further improve the scheme be, the inner wall of pull hole, be close to the one end of revolving the twist hole and be equipped with the ring channel with the axle center.

The beneficial effects of the utility model reside in that:

first, the utility model discloses a back end is twisted soon pull compact form handle of a knife stretches into and operates from the one end of handle of a knife dorsad cutter through the long handle spanner to realized the quick replacement of cutter, convenient operation moreover.

Second, the utility model discloses a back end is twisted soon pull compact form handle of a knife, through the effect of the spacing pipe of direction, not only can stretch into when twisting the hole soon the long handle spanner and carry out spacing direction, be convenient for stretch into the polygon grass with the long handle spanner to the long handle spanner in, but also can realize that the axial to the pull bolt is spacing at the in-process of twisting soon.

Third, the utility model discloses a back end revolves wrong pull compact form handle of a knife, revolves the ring channel that the one end of twisting the hole was established with the axle center through revolving to can make at the in-process of centre gripping fixed cutter, because deformation and lead to the unable elimination of inside stress.

Drawings

Fig. 1 is a schematic partial sectional view of the present invention.

Detailed Description

As shown in fig. 1, the rear-end screwing, pulling and pressing type tool holder includes a tool holder body 1, a tapered hole 2, a pulling hole 3, a screwing hole 4 and a threaded connection hole a5 which are sequentially communicated with the same axis are arranged from a tool clamping end to the tool holder clamping end at the axis center of the tool holder body 1, the diameter of an orifice of the tapered hole 2 corresponding to the tool clamping end is larger than the diameter of an orifice of the tapered hole 2 connected with the pulling hole 3, the inner diameter of the pulling hole 3 is equal to the diameter of an orifice of the tapered hole 2 connected with the pulling hole 3 and smaller than the inner diameter of the screwing hole 4, and the diameter of the screwing hole 4 is smaller than the inner diameter of the threaded connection hole a 5; the tool holder is characterized in that a cylindrical clamp 9 is coaxially arranged in the conical hole 2, one end of the outer side wall of the cylindrical clamp 9 is matched with the conical hole 2, the other end of the outer side wall of the cylindrical clamp 9 extends into the drawing hole 3 and is matched with the drawing hole 3, a clamping groove matched with the outer diameter of a tool 17 is arranged at the position, corresponding to the axis of the clamping end of the tool, of the cylindrical clamp 9, a drawing bolt 11 is further arranged in the tool holder body 1, one end, facing the conical hole 2, of the drawing bolt 11 sequentially penetrates through a threaded connecting hole A5 and a screwing hole 4, extends into the drawing hole 3 and is in threaded connection with a threaded connecting hole B16 arranged at the axis of the end of the cylindrical clamp 9 extending into the drawing hole 3, a nut of the drawing bolt 11 is located in the screwing hole 4, and a pull nail 10 is fixedly connected to the end of the tool holder body 1 through a threaded connecting hole A5; a plurality of side grooves are formed in the side wall of the cylindrical clamp 9 corresponding to the clamping groove positions, the side grooves are communicated with the clamping groove and the outer side of the cylindrical clamp 9, and the side grooves penetrate through the cylindrical clamp 9 along the axis direction of the cylindrical clamp 9 to form a tool clamping end corresponding to the cylindrical clamp 9; the side grooves are uniformly distributed by taking the axis of the cylindrical clamp 9 as the center to form a petal-shaped structure; the inner diameter of the clamping groove is larger than the maximum inner diameter of the threaded connecting hole B16; a conical groove 8 is coaxially arranged at the joint of the screwing hole 4 and the drawing hole 3, the inner diameter of the conical groove 8 is reduced along the direction facing the clamping end of the cutter, and the diameter of a nut of the drawing bolt 11 is smaller than or equal to the inner diameter of the conical groove 8, which is back to the clamping end of the cutter, and is larger than the inner diameter of the conical groove 8 facing the clamping end of the cutter; a guide limiting pipe 12 is coaxially arranged in the screwing hole 4, an external thread 6 matched with the threaded connecting hole A5 is arranged on the outer side wall of the guide limiting pipe 12 and one end of the guide limiting pipe 12, which faces away from the clamping end of the cutter, when the guide limiting pipe 12 is fixedly connected with the threaded connecting hole A5 through the external thread 6, the axial distance between one end of the guide limiting pipe 12, which faces the clamping end of the cutter, and the nut of the drawing bolt 11 fixed on the cylindrical clamp 9 is smaller than the axial length of the nut, an axial through hole is coaxially arranged on the axis of the guide limiting pipe 12, the aperture of the axial through hole is smaller than the nut diameter of the drawing bolt 11 and is larger than the maximum diagonal length of a regular polygonal groove which is coaxially arranged at the nut end of the drawing bolt 11; the guide limiting pipe 12 is provided with a connector 13 which is connected with the threaded connecting hole A5 in a matching manner and coaxially faces away from the clamping end of the cutter, and the axial through hole penetrates through the connector 13; two opposite sides of the end part of the connector 13, which is back to the clamping end of the cutter, are at least symmetrically provided with a group of screwing notches 14; one end of the blind rivet 10 facing the tool shank body 1 is fixedly connected with a connector 15 coaxially, and the connector 15 is provided with a threaded rod matched with the threaded connecting hole A5; and an annular groove 7 is coaxially arranged at one end of the inner wall of the drawing hole 3, which is close to the screwing hole 4.

When the tool is changed, the blind rivet 10 is separated from the tool shank body 1 through the connector 15, and then a long-handle wrench matched with the drawing bolt 11 sequentially penetrates through the threaded connecting hole A5 and an axial through hole formed in the guide limiting pipe 12 to be inserted into a regular polygonal groove formed in the end part of a nut of the drawing bolt 11; then, the drawing bolt 11 is screwed out of the threaded connecting hole B16 of the cylindrical clamp 9 by screwing the long-handle wrench, and as the drawing bolt 11 is limited by the guide limiting pipe 12, when the drawing bolt 11 is screwed out of the cylindrical clamp 9, the cylindrical clamp 9 retreats towards the tool clamping end of the tool shank body 1, so that the cutter 17 is loosened by the petal-shaped structure of the cylindrical clamp 9 which clamps the cutter 17 originally; then, after the original cutter 17 is taken out and put into a new cutter 17 meeting the requirements, the drawing bolt 11 is fixedly connected with the cylindrical clamp 9 by screwing the long-handle wrench again, and the drawing bolt 11 is screwed into the threaded connecting hole B16 of the cylindrical clamp 9 because the drawing bolt 11 is limited between the guide limiting pipe 12 and the hole wall of the end, facing the drawing hole 3, of the screwing hole 4; and the new tool 17 is fixed. Therefore, after the long-handle wrench is finally taken out, the pull stud 10 is fixedly connected with the tool shank body 1 through the connecting head 15.

Claims

1. The rear end revolves wrong pull compact form handle of a knife, its characterized in that: the tool comprises a tool shank body (1), wherein a tapered hole (2), a drawing hole (3), a screwing hole (4) and a threaded connecting hole A (5) which are sequentially communicated with the same axis are formed in the axis of the tool shank body (1) from a tool clamping end to a tool shank clamping end, the diameter of an orifice of the tapered hole (2) corresponding to the tool clamping end is larger than that of an orifice of the tapered hole (2) connected with the drawing hole (3), the diameter of the orifice of the drawing hole (3) is equal to that of the orifice of the tapered hole (2) connected with the drawing hole (3) and smaller than that of the screwing hole (4), and the diameter of the screwing hole (4) is smaller than that of the threaded connecting hole A (5); a cylindrical clamp (9) is coaxially arranged in the conical hole (2), one end of the outer side wall of the cylindrical clamp (9) is matched with the conical hole (2), the other end of the outer side wall of the cylindrical clamp (9) extends into the drawing hole (3) and is matched with the drawing hole (3), a clamping groove matched with the outer diameter of the cutter (17) is arranged at the position of the cylindrical clamp (9) corresponding to the axis of the clamping end of the cutter, a drawing bolt (11) is further arranged in the tool shank body (1), one end of the drawing bolt (11) facing the conical hole (2) sequentially penetrates through the threaded connecting hole A (5) and the screwing hole (4) and extends into the drawing hole (3) respectively, and is in threaded connection with a threaded connection hole B (16) arranged at the end axle center of the cylindrical clamp (9) extending into the drawing hole (3), the nut of the drawing bolt (11) is positioned in the screwing hole (4), and the end part of the knife handle body (1) is fixedly connected with a blind rivet (10) through a threaded connecting hole A (5).

2. The rear end screwing, pulling and pressing type tool shank according to claim 1, wherein: the side wall of the cylindrical clamp (9) is provided with a plurality of side grooves corresponding to the clamping groove positions, the side grooves are communicated with the clamping groove and the outer side of the cylindrical clamp (9), and the side grooves penetrate through the cylindrical clamp (9) along the axis direction of the cylindrical clamp (9) and correspond to the tool clamping end.

3. The rear end screwing, pulling and pressing type tool shank according to claim 2, wherein: the side grooves are uniformly distributed by taking the axis of the cylindrical clamp (9) as the center to form a petal-shaped structure.

4. The rear end screwing, pulling and pressing type tool shank according to claim 1, wherein: the inner diameter of the clamping groove is larger than the maximum inner diameter of the threaded connecting hole B (16).

5. The rear end screwing, pulling and pressing type tool shank according to claim 1, wherein: revolve the junction of revolving hole (4) and pull hole (3) and be equipped with tapered groove (8) with the axle center, the internal diameter of tapered groove (8) reduces along the direction towards the cutter exposed core, the nut diameter less than or equal to tapered groove (8) of pull bolt (11) are the internal diameter of cutter exposed core, and are greater than tapered groove (8) towards the internal diameter of cutter exposed core.

6. The rear end screwing, pulling and pressing type tool shank according to claim 1, wherein: the inner side of the screwing hole (4) is coaxially provided with a guide limiting pipe (12), the outer side wall of the guide limiting pipe (12) and one end, facing away from the cutter clamping end, of the guide limiting pipe are provided with external threads (6) matched with the threaded connecting hole A (5), when the guide limiting pipe (12) is fixedly connected with the threaded connecting hole A (5) through the external threads (6), the axial distance between one end, facing the cutter clamping end, of the guide limiting pipe (12) and a nut of a drawing bolt (11) fixed on the cylindrical clamp (9) is smaller than the axial length of the nut, the axis of the guide limiting pipe (12) is coaxially provided with an axial through hole, and the aperture of the axial through hole is smaller than the nut diameter of the drawing bolt (11) and is larger than the maximum diagonal length of a regular polygonal groove formed in the same axis of the nut end of the drawing bolt (11).

7. The rear end screwing, pulling and pressing type tool shank according to claim 1, wherein: the blind rivet (10) is towards one end of the knife handle body (1) and is fixedly connected with a connector (15) with the same axis, and the connector (15) is provided with a threaded rod matched with the threaded connecting hole A (5).

8. The rear end screwing, pulling and pressing type tool shank according to claim 1, wherein: an annular groove (7) is coaxially arranged at one end of the inner wall of the drawing hole (3) close to the screwing hole (4).