CN214488876U

CN214488876U - Tool shank structure capable of clamping workpiece

Info

Publication number: CN214488876U
Application number: CN202120583978.0U
Authority: CN
Inventors: 林新泽; 赵国飞
Original assignee: Jinshang Precision Machine Tool Zhejiang Co ltd
Current assignee: Jinshang Precision Machine Tool Zhejiang Co ltd
Priority date: 2021-03-20
Filing date: 2021-03-20
Publication date: 2021-10-26
Anticipated expiration: 2031-03-20

Abstract

The utility model relates to a but handle of a knife structure of centre gripping work piece relates to handle of a knife field for the lathe, and this structure includes handle of a knife body, connects in the connecting rod of handle of a knife body, the connecting rod is connected with the clamping piece, the clamping groove that is used for holding the work piece is offered to the clamping piece, the clamping groove includes a butt wall that supplies the work piece butt, still includes a butt inclined plane that corresponds with the butt wall, the clamping groove is close to butt inclined plane one end and is provided with the tight subassembly of support that is used for supporting tight work piece, support and form the accommodation space that is used for holding the work piece between tight subassembly and the butt wall, support tight subassembly and support tightly in the butt inclined plane and can follow the butt inclined plane and slide. This application has that installation accuracy is higher, and can directly centre gripping work piece carry out the effect of processing, has improved the pluralism of handle of a knife function.

Description

Tool shank structure capable of clamping workpiece

Technical Field

The application relates to the field of tool shanks for machine tools, in particular to a tool shank structure capable of clamping workpieces.

Background

The tool holder is a tool, is a connecting piece of a mechanical main shaft, a cutter and other accessory tools, and has main spindle models with a plurality of specifications such as BT, SK, CAPTO, BBT, HSK and the like in the current main standard.

In the related art, the tool holder is used for mounting tools such as a drill bit, a milling head and the like, the tool holder generally comprises a tool holder body which is used for being assembled with a tool holder interface on a machine tool, the tool holder body can be assembled in the tool holder interface, and the drill bit and other tools are mounted at one end of the tool holder body, which is far away from the tool holder interface.

In view of the above-mentioned related art, the inventor believes that the tool holder structure described above can only mount a tool, and is not suitable for a working condition where a workpiece needs to be clamped.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem that the tool holder structure can only be used for installing a tool, the application provides a tool holder structure capable of clamping a workpiece.

The application provides a but handle of a knife structure of centre gripping work piece adopts following technical scheme:

the utility model provides a but handle of a knife structure of centre gripping work piece, includes handle of a knife body, connects in the connecting rod of handle of a knife body, the connecting rod is connected with the clamping piece, the clamping groove that is used for holding the work piece is offered to the clamping piece, the clamping groove includes a butt wall that supplies the work piece butt, still includes a butt inclined plane that corresponds with the butt wall, the clamping groove is close to butt inclined plane one end and is provided with the tight subassembly of support that is used for supporting tight work piece, support and form the accommodation space that is used for holding the work piece between tight subassembly and the butt wall, support tight subassembly support tightly in the butt inclined plane and can follow the butt inclined plane and slide.

By adopting the technical scheme, the tool shank is modified to be provided with the accommodating groove capable of clamping the workpiece, the workpiece is placed in the accommodating groove and is tightly abutted through the abutting assembly, and the workpiece is clamped in the clamping groove; the workpiece and the tool handle body form a whole, the tool handle can be directly clamped when the material is taken at every time, and the mounting precision of the tool handle body and the tool upper tool handle interface is higher, so that the mounting precision of the workpiece can be indirectly improved.

Optionally, support tight subassembly including setting up the wedge at the clamping inslot, the wedge includes an inclined plane parallel with the butt inclined plane and butt, threaded hole has been seted up to the clamping tank bottom surface, the wedge has seted up the through-hole along the direction of aligning with the screwed hole, wear to be equipped with fastening bolt in the through-hole, fastening bolt passes through-hole and screw hole and threaded connection in clamping tank bottom portion in proper order, the through-hole diameter is greater than the bolt diameter.

Through adopting above-mentioned technical scheme, when putting the work piece in the clamping groove, the work piece is located the accommodation space, and a lateral wall and the butt wall butt of work piece, another lateral wall and wedge butt, when screwing up fastening bolt downwards, wedge and butt inclined plane butt each other, and under the guide effect on butt inclined plane for the wedge compresses tightly gradually towards the work piece direction, and fastening bolt screws is tighter, and the wedge is pressed tighter to the work piece, presss from both sides the clamp with the work piece fixedly through butt wall and wedge.

Optionally, the fastening bolt comprises a countersunk bolt.

Through adopting above-mentioned technical scheme, when countersunk head bolt screwed up, can immerse inside the part head nut to promote the planarization on part surface.

Optionally, the abutting wall is provided with a plurality of mutually parallel ribs, and the ribs are perpendicular to the different surfaces of the fastening bolt.

By adopting the technical scheme, the convex edges are arranged, so that the workpiece is abutted to the convex edges when being compressed, the friction force to the workpiece is increased through the convex edges, and the workpiece is clamped more firmly and stably in the machining process.

Optionally, the clamping grooves are provided with two grooves, and the opening directions of the two clamping grooves are opposite.

By adopting the technical scheme, the two workpieces can be clamped simultaneously, and the two clamping grooves are symmetrically arranged due to the fact that the openings of the two clamping grooves are opposite, so that the stress of the clamping blocks is more balanced.

Optionally, the diameter of the connecting rod is larger than that of the handle body, the connecting rod is provided with a limiting groove, and the limiting groove is located at one end, close to the handle body, of the connecting rod.

Through adopting above-mentioned technical scheme, when depositing the handle of a knife on the objective table temporarily, through set up the spacing groove on the connecting rod like supporting bodies such as charging tray, set up in the stopper that the spacing groove corresponds on the objective table, be convenient for realize spacingly to the position of handle of a knife body for place more stably.

Optionally, the circumferential outer wall of the connecting rod is provided with an embedding groove convenient for clamping, and the embedding groove is formed along the tangential direction of the circumference of the connecting rod.

By adopting the technical scheme, when the tool shank is clamped by parts such as the clamping jaw, the clamping jaw can be matched with the caulking groove, so that the tool shank can be clamped conveniently, and the risk of slipping is reduced.

Optionally, the clamping block is fixedly connected with a positioning block for positioning the workpiece, the positioning block is located on the inner wall of the clamping groove or at the end of the clamping groove, and the positioning block is abutted to the workpiece.

Through adopting above-mentioned technical scheme, support tight subassembly and butt wall and can realize the location of work piece one direction, through setting up the locating piece, can realize the spacing of another direction to the work piece to further improve the stability and the precision of work piece centre gripping.

In summary, the present application includes at least one of the following beneficial technical effects:

the tool holder is modified to be provided with a containing groove capable of clamping a workpiece, the workpiece is placed in the containing groove and is tightly abutted through the abutting assembly, and the workpiece is clamped in the clamping groove; the workpiece and the tool handle body form a whole, the tool handle can be directly clamped and taken each time, and the mounting precision of the tool handle body and a tool handle interface on a machine tool is high, so that the mounting precision of the workpiece can be indirectly improved;

through setting up the bead for the butt has increased the frictional force to the work piece through the bead on the bead when the work piece compresses tightly, makes the work piece centre gripping more firm stable in the course of working.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a schematic diagram of an explosive structure according to an embodiment of the present application.

Description of reference numerals: 1. a knife handle body; 2. a connecting rod; 3. installing a clamping block; 4. clamping grooves; 5. an abutment wall; 6. abutting against the inclined plane; 7. a propping component; 8. a wedge block; 9. a threaded hole; 10. a through hole; 11. fastening a bolt; 12. a rib; 13. a limiting groove; 14. caulking grooves; 15. and (5) positioning the blocks.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses a tool handle structure capable of clamping a workpiece. Referring to fig. 1 and 2, this structure includes handle of a knife body 1, can select for use the handle of a knife body 1 of Capto handle of a knife in this embodiment, and handle of a knife body 1 is wholly cylindrical, still is connected with on handle of a knife body 1 to be columniform connecting rod 2, and connecting rod 2 is coaxial and fixed connection with handle of a knife body 1, and the diameter of connecting rod 2 is greater than the diameter of handle of a knife body 1. The end face of the connecting rod 2 is fixedly connected with a clamping block 3, in the embodiment, the clamping block 3 and the connecting rod 2 can be integrally manufactured, and in other embodiments, the clamping block 3 can be fixed on the connecting rod 2 through a bolt, so that the connecting rod is convenient to disassemble and replace; the clamping groove 4 has been seted up at 3 lateral walls of clamping piece, the clamping groove 4 can be seted up a plurality ofly according to the shape of clamping piece 3, two have been seted up in this embodiment, and the opening opposite direction in two clamping grooves 4, clamping groove 4 includes a butt wall 5 that is used for supplying the work piece butt, still include a butt inclined plane 6 that corresponds with butt wall 5, butt inclined plane 6 is towards outwards heeling along the direction at 4 bottoms in clamping groove to the top, be provided with in clamping groove 4 and support tight subassembly 7, can press from both sides the work piece tight and be fixed in clamping groove 4 through supporting tight subassembly 7.

Referring to fig. 2, support tight subassembly 7 including setting up the wedge 8 in clamping groove 4, wedge 8 is close to butt inclined plane 6, and form the accommodation space that is used for holding the work piece between wedge 8 and butt wall 5, wedge 8 is the inclined plane with the face that butt inclined plane 6 is close to, the inclined plane is parallel with butt inclined plane 6 and butt, threaded hole 9 has been seted up on the bottom surface of clamping groove 4, along the orientation that aligns with threaded hole 9 seted up through-hole 10 on wedge 8, wear to be equipped with fastening bolt 11 in through-hole 10, fastening bolt 11 passes through-hole 10 and threaded hole 9 in proper order and the bottom of screw-thread tightening in clamping block 3. In order that the wedge-shaped block 8 can be moved in the direction of the workpiece during tightening of the fastening bolt 11, the diameter of the through-hole 10 is set larger than the diameter of the screw portion of the fastening bolt 11, so that as the fastening bolt 11 is tightened towards the clamping block 3, the wedge-shaped block 8 is gradually squeezed towards the workpiece under the guiding action of the abutment slope 6, thereby pressing the workpiece against the abutment wall 5. In addition, in order to improve the flatness of the surface of the wedge block 8, a countersunk bolt may be used as the fastening bolt 11.

Referring to fig. 2, in order to increase the stability of the workpiece during clamping, a plurality of parallel ribs 12 are arranged on the abutting wall 5, the ribs 12 are arranged in the direction perpendicular to the axis of the fastening bolt 11, the ribs 12 are perpendicular to the different surfaces of the axis of the fastening bolt 11, when the wedge block 8 compresses the workpiece, the friction force on the workpiece is increased through the ribs 12, and therefore the possibility that the workpiece is separated from the clamping groove 4 is reduced.

Referring to fig. 1, in order to further position a workpiece, a positioning block 15 for positioning the workpiece may be fixedly connected to the clamping block 3, the positioning block 15 may be locked to the clamping block 3 by a screw, when the sidewall of the clamped workpiece is a plane, the positioning block 15 may be fixed to an end of the clamping slot 4, when the workpiece is mounted, an end surface of the workpiece abuts against the positioning block 15 to position the workpiece, and when the sidewall of the clamped workpiece has a groove, the positioning block 15 may be fixed to an inner wall of the clamping slot 4 and a position corresponding to the groove to limit the workpiece.

Referring to fig. 2, for the stability when further improving the installation of handle of a knife or deposit temporarily, seted up spacing groove 13 on the outer wall of handle of a knife body 1, set up in the stopper that spacing groove 13 corresponds on plummer or the handle of a knife interface that is used for installing the handle of a knife, during the installation handle of a knife, align spacing groove 13 and stopper to can restrict the rotation of handle of a knife around self axis, and can guarantee the uniformity of handle of a knife angle when placing the handle of a knife, improve the installation accuracy. In order to facilitate the clamping of the mechanical claw to the knife handle, the circumferential outer wall of the knife handle body 1 is further provided with an embedded groove 14 for clamping the claw, and the embedded groove 14 is formed along the tangential direction of the circumferential side wall of the knife handle body 1.

The implementation principle of the tool holder structure capable of clamping the workpiece in the embodiment of the application is as follows: at first put the work piece in the accommodation space between wedge 8 and butt wall 5, and a lateral wall and the butt wall 5 butt of work piece, another lateral wall and wedge 8 butt, under the initial condition, leave the clearance between wedge 8 and the clamping groove 4 bottom surface, when screwing up fastening bolt 11 downwards, wedge 8 and butt inclined plane 6 mutual butt, wedge 8 is close to the clamping groove 4 bottom surface gradually simultaneously, and under the guide effect on butt inclined plane 6, and because the through-hole 10 diameter is greater than fastening bolt 11's diameter, can make wedge 8 compress tightly gradually towards the work piece direction, and fastening bolt 11 screws up more tightly, wedge 8 presses the work piece more tightly, clamp the work piece through butt wall 5 and wedge 8 and fix.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a but handle of a knife structure of centre gripping work piece which characterized in that: including handle of a knife body (1), connect in connecting rod (2) of handle of a knife body (1), connecting rod (2) are connected with clamping piece (3), clamping groove (4) that are used for holding the work piece are offered in clamping piece (3), clamping groove (4) include one supply butt wall (5) of work piece butt, still include one with butt wall (5) corresponding butt inclined plane (6), clamping groove (4) are close to butt inclined plane (6) one end and are provided with and are used for supporting tight subassembly (7) that supports of tight work piece, support to form the accommodation space that is used for holding the work piece between tight subassembly (7) and butt wall (5), support tight subassembly (7) and support tightly in butt inclined plane (6) and can follow butt inclined plane (6) and slide.

2. The tool shank structure capable of clamping a workpiece according to claim 1, wherein: support tight subassembly (7) including setting up wedge (8) in clamping groove (4), wedge (8) include one with the parallel inclined plane of butt inclined plane (6) and butt, clamping groove (4) bottom surface set up screw hole (9), through-hole (10) have been seted up along the direction of lining up with screw hole (9) in wedge (8), wear to be equipped with fastening bolt (11) in through-hole (10), fastening bolt (11) pass through-hole (10) and screw hole (9) and threaded connection in clamping groove (4) bottom in proper order, through-hole (10) diameter is greater than the bolt diameter.

3. The tool shank structure capable of clamping a workpiece according to claim 2, wherein: the fastening bolt (11) comprises a countersunk bolt.

4. The tool shank structure capable of clamping a workpiece according to claim 1, wherein: the butt joint wall (5) is provided with a plurality of mutually parallel ribs (12), and the ribs (12) are perpendicular to the different surfaces of the fastening bolts (11).

5. The tool shank structure capable of clamping a workpiece according to claim 1, wherein: two clamping grooves (4) are formed, and the opening directions of the two clamping grooves (4) are opposite.

6. The tool shank structure capable of clamping a workpiece according to claim 1, wherein: the diameter of the connecting rod (2) is larger than that of the knife handle body (1), the connecting rod (2) is provided with a limiting groove (13), and the limiting groove (13) is located at one end, close to the knife handle body (1), of the connecting rod (2).

7. The tool shank structure capable of clamping a workpiece according to claim 1, wherein: the circumference outer wall of connecting rod (2) is seted up caulking groove (14) of being convenient for the centre gripping, caulking groove (14) are seted up along the tangential direction of connecting rod (2) circumference.

8. The tool shank structure capable of clamping a workpiece according to claim 1, wherein: clamping piece (3) fixedly connected with is used for locating piece (15) to the work piece, locating piece (15) are located clamping groove (4) inner wall or the tip of clamping groove (4), locating piece (15) and work piece butt.