CN213764030U

CN213764030U - Center seat for lathe

Info

Publication number: CN213764030U
Application number: CN202022448391.7U
Authority: CN
Inventors: 韩海涛; 傅其明
Original assignee: Wuxi Santuo Electrical Equipment Co ltd
Current assignee: Wuxi Santuo Electrical Equipment Co ltd
Priority date: 2020-10-29
Filing date: 2020-10-29
Publication date: 2021-07-23
Anticipated expiration: 2030-10-29

Abstract

The utility model discloses a center seat for a lathe, which comprises a base, wherein a supporting table is rotatably connected on the base, and a first threaded hole and a second threaded hole are arranged on the supporting table; the first threaded hole and the second threaded hole are both matched with the arranged tip threads; the first threaded hole is horizontally arranged, and the second threaded hole is obliquely arranged; the base is also provided with an angle value; the supporting table is rotatably connected with the base, so that the first threaded hole and the second threaded hole can be exchanged simply and conveniently, and the tips in different threaded holes can be exchanged, so that the device can clamp workpieces in different shapes; the angle value that sets up makes a supporting bench pivoted angle can the accurate adjustment, promotes the machining precision of work piece, through above-mentioned technical scheme, improves current apex seat, not only makes the function of apex seat increase, but also can promote the machining precision of work piece. Therefore, the utility model is worth popularizing and applying.

Description

Center seat for lathe

Technical Field

The utility model relates to the technical field of machine tools, in particular to a centre seat for a lathe.

Background

The center is a machine tool part in machining, has the characteristics of small outer diameter and few interference cutters, and is suitable for high-rotation-speed and medium-degree cutting places. When the device works, the center is arranged on the center seat, and the center seat is arranged on the instrument, so that the center seat determines the positioning effect and the positioning precision of the center to a great extent. The existing tip seat is simple in structure and single in function, and good positioning effect and positioning accuracy cannot be guaranteed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a top seat that lathe was used to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the center seat for the lathe comprises a base, wherein a groove is formed in the base; an angle value is further arranged on the end face of the groove, and a supporting table is rotationally connected in the groove; the supporting platform is rotationally connected with the base through a chassis; the chassis is also provided with a first pointer and a second pointer pointing to the angle value; the supporting platform is rectangular, and a first internal thread hole and a second internal thread hole are formed in the supporting platform; the first internal thread hole and the second internal thread hole are internally provided with apexes for thread matching; the central axis of the first internal threaded hole is parallel to the horizontal plane, and the central axis of the second internal threaded hole is obliquely arranged with the horizontal plane; the central axis of the tip positioned in the first internal thread hole is superposed with the central axis of the first pointer; the central axis of the tip positioned in the second internal thread hole is superposed with the central axis of the second pointer; the chassis realizes the rotation of the supporting platform and the base and the positioning after the rotation through the looseness and tightness of the connecting rod.

As the utility model discloses a preferred technical scheme: the base also comprises a cylinder, wherein the cross section of the groove is circular, and the circle centers of the groove and the cylinder are overlapped; two fixing lugs are symmetrically arranged on the circumferential surface of the cylinder, and notches are arranged on the fixing lugs; and a through hole is also arranged between the two fixing lugs.

As the utility model discloses a preferred technical scheme: the chassis is also provided with a ring groove, and the cross section of the ring groove is T-shaped.

As the utility model discloses a preferred technical scheme: the connecting rod, include with the gliding slider of annular looks adaptation, just the width of slider is less than the width of annular open end, just the length of slider is greater than the width of annular open end, and the arc surface is set to the one side of slider, and passes through the arc surface with the laminating of the internal surface of annular.

As the utility model discloses a preferred technical scheme: the connecting rod further comprises a screw rod, and the screw rod penetrates through the through hole to be in threaded fit with a nut; and the other end of the screw rod is provided with a stud, and the stud is in adaptive connection with a screw hole arranged on the sliding block.

Adopt above-mentioned technical scheme, the beneficial effects of the utility model are that: 1. the supporting table is rotatably connected with the base, so that the first threaded hole and the second threaded hole can be exchanged simply and conveniently, and the tips in different threaded holes can be exchanged, so that the device can clamp workpieces in different shapes;

2. the angle value that sets up makes a supporting bench pivoted angle can the accurate adjustment, promotes the machining precision of work piece, through above-mentioned technical scheme, improves current apex seat, not only makes the function of apex seat increase, but also can promote the machining precision of work piece.

Drawings

FIG. 1 is a schematic view of the main structure of the present invention;

FIG. 2 is a schematic view of the main structure of the base of the present invention;

fig. 3 is a schematic view of the main structure of the supporting table of the present invention;

fig. 4 is a schematic view of the exploded structure of the connecting rod of the present invention.

In the figure: 1. a support table; 10. a first internally threaded bore; 11. a second internally threaded bore; 12. a chassis; 13. a first pointer; 14. a second pointer; 15. a ring groove; 2. a tip; 3. a base; 30. fixing the ear; 31. a notch; 32. an angle value; 33. a groove; 34. a through hole; 35. a cylinder; 4. a connecting rod; 40. a nut; 41. a screw; 42. a stud; 43. a screw hole; 44. a slider; 45. a circular arc surface.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention. In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "upper surface", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically connected, electrically connected or can communicate with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-4, the present invention provides an embodiment: the center seat for the lathe comprises a base 3, wherein a groove 33 is formed in the base 3; the end face of the groove 33 is also provided with an angle value 32, and the supporting table 1 is rotationally connected in the groove 33; because the unit of the angle value 32 is degree, the rotation angle of the supporting table 1 can be accurate to the degree, and meanwhile, the supporting table 1 is fixed and supported by the arrangement of the groove 33;

the supporting table 1 is rotationally connected with the base 3 through a chassis 12; the rotation between the supporting table 1 and the base 3 is more stable due to the arranged chassis 12, so that the eccentric motion is avoided, and the precision of the device is further improved;

the chassis 12 is also provided with a first pointer 13 and a second pointer 14 pointing to the angle value 32, so that the rotation angle is convenient to identify;

because the support table 1 is rectangular, a first internal thread hole 10 and a second internal thread hole 11 are arranged on the support table 1, and the centers 2 for thread matching are arranged in the first internal thread hole 10 and the second internal thread hole 11; the arrangement of the two threaded holes enables the device to be capable of simultaneously or independently installing the finials 2, and meanwhile, the threaded matching enables the finials 2 to be more stable when clamping a workpiece, so that the phenomenon of sliding when the finials 2 clamp the workpiece is effectively solved;

the central axis of the first internal thread hole 10 is parallel to the horizontal plane, so that the centre 2 can horizontally clamp a workpiece, and the central axis of the second internal thread hole 11 is obliquely arranged with the horizontal plane, so that the device can clamp some non-shaft workpieces or workpieces in a crankshaft;

the central axis of the tip 2 positioned in the first internal thread hole 10 is superposed with the central axis of the first pointer 13, so that the tip 2 and the first pointer 13 synchronously move, and the rotation angle is accurately adjusted; similarly, the central axis of the center 2 positioned in the second internal thread hole 11 is superposed with the central axis of the second pointer 14;

in order to fix the chassis 12 in the groove 33 to ensure the stable clamping of the tip 2 to the workpiece, the chassis 12 is loosened and tightened through the provided connecting rod 4, so that the support table 1 and the base 3 are rotated and positioned after the rotation.

Thanks to said base 3, it also comprises a cylindrical body 35; the cross section of the groove 33 is circular, and the circle centers of the groove and the cylinder 35 are overlapped; the device can stably rotate, eccentric movement of the chassis 12 and the groove 33 is further avoided, and the maintenance of the processing precision of the workpiece when the device clamps the workpiece is further improved.

In order to enable the base 3 to be stably and conveniently installed on a machine tool, two fixing lugs 30 are symmetrically arranged on the circumferential surface of the cylinder 35, and notches 31 are arranged on the fixing lugs 30;

in addition, a through hole 34 is further formed between the two fixing lugs 30, and the installation and the disassembly of the connecting rod 4 are convenient due to the arrangement of the through hole 34.

In order to ensure that the chassis 12 is firmly positioned after rotating, the chassis 12 is further provided with a ring groove 15, the cross section of the ring groove 15 is T-shaped, and the base 3 and the chassis 12 are limited to rotate relatively by the connection of the connecting rod 4 and the ring groove 15.

The connecting rod 4 has the specific structure that the connecting rod comprises a sliding block 44 which is matched with the annular groove 15 to slide, when the width of the sliding block 44 is smaller than the width of the opening end of the annular groove 15, and the length of the sliding block 44 is larger than the width of the opening end of the annular groove 15, the sliding block 44 can be placed in the annular groove 15 when the sliding block 44 is transversely placed, and when the length of the sliding block 44 is larger than the width of the opening end of the annular groove 15, the sliding block 44 is placed in the annular groove 15 and then vertically placed, so that the sliding block 44 is effectively prevented from falling off from the annular groove 15;

in order to make the sliding block 44 slide in the ring groove 15 more smoothly, an arc surface 45 is provided on one surface of the sliding block 44, and the arc surface 45 is attached to the inner surface of the ring groove 15.

Further, since the connecting rod 4 further comprises a screw rod 41, the screw rod 41 passes through the through hole 34 to be in threaded fit with the nut 40, so that the nut 40 pulls the slider 44 outwards through clockwise rotation of the nut 40 on the screw rod 41, and thus rotation between the chassis 12 and the groove 33 is blocked; when the nut 40 rotates anticlockwise on the screw 41, the external force pulling the slider 44 disappears, thus freeing the rotation between the chassis 12 and the groove 33;

in order to further facilitate the connection between the sliding block 44 and the screw rod 41, a stud 42 is arranged at the other end of the screw rod 41, and the stud 42 is in fit connection with a screw hole 43 arranged on the sliding block 44; due to the threaded connection, the sliding block 44 can be assembled to the annular groove 15 before the screw rod 41 is combined with the sliding block 44, so that the assembly of the device is further facilitated.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims

1. A nose cup for a lathe, comprising: comprises a base (3), wherein a groove (33) is arranged on the base (3);

an angle value (32) is further arranged on the end face of the groove (33), and the supporting table (1) is rotationally connected in the groove (33);

the supporting platform (1) is rotatably connected with the base (3) through a chassis (12);

the chassis (12) is also provided with a first pointer (13) and a second pointer (14) pointing to the angle value (32);

the supporting table (1) is rectangular, and a first internal thread hole (10) and a second internal thread hole (11) are formed in the supporting table (1);

the first internal thread hole (10) and the second internal thread hole (11) are internally provided with apexes (2) which are matched with each other in a threaded manner;

the central axis of the first internal thread hole (10) is parallel to the horizontal plane, and the central axis of the second internal thread hole (11) is obliquely arranged with the horizontal plane;

the central axis of the tip (2) positioned in the first internal thread hole (10) is superposed with the central axis of the first pointer (13);

the central axis of the tip (2) positioned in the second internal thread hole (11) is superposed with the central axis of the second pointer (14);

the chassis (12) is loosened and tightened through the connecting rod (4) arranged, so that the supporting platform (1) and the base (3) can rotate and be positioned after rotation.

2. A tool holder for a lathe as set forth in claim 1, wherein: the base (3) further comprises a cylinder (35), wherein the cross section of the groove (33) is circular, and the circle centers of the cylinder (35) coincide;

two fixing lugs (30) are symmetrically arranged on the circumferential surface of the cylinder (35), and notches (31) are arranged on the fixing lugs (30);

a through hole (34) is also arranged between the two fixing lugs (30).

3. A tool holder for a lathe as set forth in claim 2, wherein: the chassis (12) is also provided with a ring groove (15), and the cross section of the ring groove (15) is T-shaped.

4. A tool holder for a lathe as set forth in claim 3, wherein: connecting rod (4), include with gliding slider (44) of annular (15) looks adaptation, just the width of slider (44) is less than the width of annular (15) open end, just the length of slider (44) is greater than the width of annular (15) open end, and arc surface (45) are set to the one side of slider (44), and pass through arc surface (45) with the interior surface laminating of annular (15).

5. The tool tip seat for a lathe according to claim 4, wherein: the connecting rod (4) further comprises a screw rod (41), and the screw rod (41) penetrates through the through hole (34) to be in threaded fit with a nut (40);

the other end of the screw rod (41) is provided with a stud (42) and is in adaptive connection with a screw hole (43) arranged on the sliding block (44) through the stud (42).