CN218836791U

CN218836791U - Center frame

Info

Publication number: CN218836791U
Application number: CN202222873767.8U
Authority: CN
Inventors: 刘华昌
Original assignee: Yixing Shundu Automation Technology Co ltd
Current assignee: Yixing Shundu Automation Technology Co ltd
Priority date: 2022-10-29
Filing date: 2022-10-29
Publication date: 2023-04-11
Anticipated expiration: 2032-10-29

Abstract

The utility model relates to a machine tool clamp technical field specifically indicates a centre frame. The support device comprises a bottom plate, wherein a support column and a support block are arranged at the bottom of the bottom plate, a fixing sleeve is arranged on the bottom plate, a rack is arranged in the fixing sleeve, a fixing box is arranged on the side wall of the fixing sleeve, a driving piece is arranged in the fixing box, a connecting block A is arranged at the top of the rack, a support plate is arranged above the connecting block A, a connecting block B is arranged at the bottom of the support plate, and the connecting block A and the connecting block B are rotationally connected through a bearing; the supporting plate is provided with a telescopic rod, the movable end of the telescopic rod is provided with a cross rod and a clamping roller A, the supporting plate is provided with a clamping piece, and the clamping piece comprises a fixing frame, a knob, a threaded rod, a sliding strip and a clamping roller B. The utility model discloses solve current centre frame and can not adjust and can not carry out the technical problem fixed to the work piece of equidimension diameter not to the height of self, provide an adjustable self height and be applicable to and carry out the centre frame fixed to different diameter work pieces.

Description

Center frame

Technical Field

The utility model relates to a machine tool clamp technical field specifically indicates a centre frame.

Background

The steady rest, i.e. the auxiliary device that radially supports the rotating workpiece during machining. When in processing, the center frame and the workpiece do not move axially relatively. In the machining process of the numerical control lathe, a casting is bent and vibrated under the action of cutting force, dead weight and centrifugal force during rotation, and the shape precision, the size precision and the surface roughness are seriously influenced. Meanwhile, in the cutting process, the casting is heated to extend and is easy to bend and deform, so that turning is difficult to perform. A center frame is required to support the workpiece so as to improve the clamping rigidity of the workpiece.

The existing center frame cannot adjust the height of the center frame, so that workpieces with different diameters cannot be fixed, the applicability is poor, and the requirements of people cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model discloses solve current centre frame and can not adjust and can not carry out the technical problem fixed to the work piece of equidimension diameter not to the height of self, provide an adjustable self height and be applicable to and carry out the centre frame fixed to different diameter work pieces.

The utility model provides a technical scheme does: a steady rest, characterized in that: the support device comprises a bottom plate, wherein a plurality of support columns are arranged at the bottom of the bottom plate, support blocks are arranged at the bottom ends of the support columns, a fixing sleeve is arranged on the bottom plate, a rack is arranged inside the fixing sleeve, a fixing box is fixedly connected to the side wall of the fixing sleeve, a driving piece connected with the rack is arranged in the fixing box, a connecting block A is arranged at the top of the rack, a support plate is arranged above the connecting block A, a connecting block B is arranged at the bottom of the support plate, and the connecting block A and the connecting block B are rotatably connected through a bearing; be equipped with two telescopic links in the backup pad, two the expansion end top of telescopic link is passed through the horizontal pole and is connected, the horizontal pole front side is connected with grip roller A, be equipped with two holders in the backup pad, two the holder all includes the fixed frame with backup pad fixed connection, the fixed frame bottom is equipped with the knob, the knob top is equipped with the threaded rod that runs through fixed frame diapire, the cover is equipped with the slip strip that is located fixed frame inside on the threaded rod, the side all is connected with grip roller B around the slip strip top.

As a further improvement, the driving piece is including setting up the rotatory crank at the fixed case front side, rotatory crank rear side fixedly connected with runs through the dwang through the fixed case antetheca, rotatory crank one end is kept away from to the dwang is equipped with bevel gear A, bevel gear A one side is equipped with the pivot, fixed cover is equipped with the bevel gear B with bevel gear A engaged with and the gear of rack engaged with in the pivot.

As a further improvement, the number of the supporting columns is four, and the supporting columns are distributed in a rectangular shape.

As a further improvement, the rack is in sliding connection with the fixed sleeve and is attached to the fixed sleeve.

As a further improvement, the fixed box is communicated with the fixed sleeve, a through hole for the rotating rod to pass through is formed in the front wall of the fixed box, and a rotating groove for rotating the rotating shaft is formed in the side wall of the fixed box.

As a further improvement, the threaded rod surface is provided with external threads, the interior of the sliding strip is provided with internal threads meshed with the external threads, and the sliding strip is connected with the fixed frame in a sliding manner.

Compared with the prior art, the utility model the advantage lie in: the utility model is provided with the driving piece, and the rotating crank is rotated, thereby realizing the adjustment of the self height of the center frame and having strong practicability; the clamping piece is arranged, workpieces with different diameters can be fixed by rotating the knob, the applicability is high, and the clamping device has great application value and popularization value.

Drawings

Fig. 1 is an overall perspective view of a center frame of the present invention;

fig. 2 is an overall front view of a center frame of the present invention;

fig. 3 is a side view of a partial structure of a center frame according to the present invention;

fig. 4 isbase:Sub>A cross-sectional view ofbase:Sub>A-base:Sub>A in fig. 3 ofbase:Sub>A center frame according to the present invention.

As shown in the figure: 1. a base plate; 2. a support pillar; 3. a support block; 4. fixing the sleeve; 5. a rack; 6. a fixed box; 7. a drive member; 7.1, rotating a crank; 7.2, rotating the rod; 7.3, bevel gear A;7.4, a rotating shaft; 7.5, bevel gear B;7.6, gears; 8. connecting a block A; 9. a support plate; 10. connecting block B; 11. a bearing; 12. a telescopic rod; 13. a cross bar; 14. a pinch roll A; 15. a clamping member; 15.1, fixing frames; 15.2, a knob; 15.3, a threaded rod; 15.4, a sliding strip; 15.5, pinch roll B.

Detailed Description

The following describes a center frame of the present invention in further detail with reference to the accompanying drawings.

In order to solve the technical problems that the height of the existing center frame cannot be adjusted and workpieces with different diameters cannot be fixed, the center frame shown in figures 1, 2, 3 and 4 is provided, and is characterized in that: the supporting device comprises a bottom plate 1, wherein a plurality of supporting columns 2 are arranged at the bottom of the bottom plate 1, supporting blocks 3 are arranged at the bottom ends of the plurality of supporting columns 2, a fixing sleeve 4 is arranged on the bottom plate 1, a rack 5 is arranged inside the fixing sleeve 4, a fixing box 6 is fixedly connected to the side wall of the fixing sleeve 4, a driving piece 7 connected with the rack 5 is arranged in the fixing box 6, a connecting block A8 is arranged at the top of the rack 5, a supporting plate 9 is arranged above the connecting block A8, a connecting block B10 is arranged at the bottom of the supporting plate 9, and the connecting block A8 is rotatably connected with the connecting block B10 through a bearing 11; be equipped with two telescopic links 12 in the backup pad 9, two the expansion end top of telescopic link 12 is passed through horizontal pole 13 and is connected, horizontal pole 13 front side is connected with grip roller A14, be equipped with two holders 15 in the backup pad 9, two holder 15 all includes the fixed frame 15.1 with backup pad 9 fixed connection, fixed frame 15.1 bottom is equipped with knob 15.2, knob 15.2 top is equipped with the threaded rod 15.3 that runs through fixed frame 15.1 diapire, the cover is equipped with the inside slip strip 15.4 that is located fixed frame 15.1 on the threaded rod 15.3, the side all is connected with grip roller B15.5 around the slip strip 15.4 top.

As shown in fig. 3 and 4, the utility model discloses in driving piece 7 is including setting up the rotatory crank 7.1 in fixed box 6 front side, rotatory crank 7.1 rear side fixedly connected with runs through dwang 7.2 through fixed box 6 antetheca, dwang 7.2 is kept away from rotatory crank 7.1 one end and is equipped with bevel gear A7.3, bevel gear A7.3 one side is equipped with pivot 7.4, fixed cover is equipped with bevel gear B7.5 with bevel gear A7.3 engaged with and the gear 7.6 with rack 5 engaged with on the pivot 7.4.

As shown in fig. 1 and fig. 2, the number of the support pillars 2 in the present invention is four and the support pillars are distributed in a rectangular shape.

As shown in fig. 1, fig. 2 and fig. 3, in the present invention, the rack 5 is slidably connected to the fixing sleeve 4 and attached to each other.

As shown in fig. 3 and 4, in the utility model, the fixing box 6 is communicated with the fixing sleeve 4, a through hole for the rotating rod 7.2 to pass through is arranged on the front wall of the fixing box 6, and a rotating groove for the rotating shaft 7.4 to rotate is arranged on the side wall of the fixing box 6.

As shown in fig. 1 and 2, in the utility model, the threaded rod 15.3 surface is equipped with the external screw thread, be equipped with the internal thread that meshes with the external screw thread in the sliding strip 15.4, sliding strip 15.4 and fixed frame 15.1 sliding connection.

The working principle is as follows: when the utility model is implemented specifically, firstly, the rotating rod 7.2 is driven to rotate by rotating the rotary crank 7.1, the rotating rod 7.2 is rotated to drive the bevel gear A7.3 to rotate, the bevel gear A7.3 is rotated to drive the rotating shaft 7.4 to rotate by the bevel gear B7.5 meshed with the bevel gear A, the rotating shaft 7.4 is rotated to drive the gear 7.6 to rotate so as to drive the rack 5 to slide in the fixed sleeve 4, so that the rack 5 slides up and down, thereby realizing the adjustment of the height of the center frame, and meanwhile, the connecting block A8 is rotatably connected with the connecting block B10 through the bearing 11, thereby conveniently rotating the supporting plate 9, conveniently adjusting the angle of the center frame and having strong practicability; when carrying out the centre gripping to the work piece fixedly, the height of the flexible horizontal pole of regulation 13 through 12 expansion ends of telescopic link, thereby adjust grip roller A14's height, put the work piece between grip roller A14 and two grip rollers B15.5, rotate knob 15.2, drive threaded rod 15.3 and rotate, threaded rod 15.3 rotates and drives slip strip 15.4 and slide in fixed frame 15.1, thereby it is fixed to make grip roller B15.5 remove to carry out the centre gripping to the work piece, it is fixed to be applicable to carry out the centre gripping to the work piece of different diameters, and the suitability is strong.

The present invention and the embodiments thereof have been described above, but the description is not limited thereto, and the embodiment shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should understand that they should not be limited to the embodiments described above, and that they can design the similar structure and embodiments without departing from the spirit of the invention.

Claims

1. A steady rest, characterized in that: the supporting device comprises a bottom plate (1), wherein a plurality of supporting columns (2) are arranged at the bottom of the bottom plate (1), supporting blocks (3) are arranged at the bottom ends of the supporting columns (2), a fixing sleeve (4) is arranged on the bottom plate (1), a rack (5) is arranged in the fixing sleeve (4), a fixing box (6) is fixedly connected onto the side wall of the fixing sleeve (4), a driving piece (7) connected with the rack (5) is arranged in the fixing box (6), a connecting block A (8) is arranged at the top of the rack (5), a supporting plate (9) is arranged above the connecting block A (8), a connecting block B (10) is arranged at the bottom of the supporting plate (9), and the connecting block A (8) is rotatably connected with the connecting block B (10) through a bearing (11); be equipped with two telescopic links (12), two on backup pad (9) the expansion end top of telescopic link (12) is passed through horizontal pole (13) and is connected, horizontal pole (13) front side is connected with grip roller A (14), be equipped with two holder (15) on backup pad (9), two holder (15) all include with backup pad (9) fixed connection's fixed frame (15.1), fixed frame (15.1) bottom is equipped with knob (15.2), knob (15.2) top is equipped with threaded rod (15.3) that run through fixed frame (15.1) diapire, the cover is equipped with on threaded rod (15.3) and is located fixed frame (15.1) inside slip strip (15.4), the side all is connected with grip roller B (15.5) around slip strip (15.4) top.

2. A central frame as claimed in claim 1, wherein: driving piece (7) are including setting up rotatory crank (7.1) at fixed case (6) front side, rotatory crank (7.1) rear side fixedly connected with runs through dwang (7.2) through fixed case (6) antetheca, dwang (7.2) are kept away from rotatory crank (7.1) one end and are equipped with bevel gear A (7.3), bevel gear A (7.3) one side is equipped with pivot (7.4), fixed cover is equipped with bevel gear B (7.5) with bevel gear A (7.3) engaged with and gear (7.6) with rack (5) engaged with on pivot (7.4).

3. A steady rest as claimed in claim 1, wherein: the number of the support columns (2) is four and the support columns are distributed in a rectangular shape.

4. A steady rest as claimed in claim 1, wherein: the rack (5) is connected with the fixed sleeve (4) in a sliding mode and attached to the fixed sleeve.

5. A central frame as claimed in claim 2, wherein: fixed case (6) are linked together with fixed sleeve (4), be equipped with the through-hole that supplies dwang (7.2) to pass through on fixed case (6) antetheca, be equipped with on fixed case (6) lateral wall and supply pivot (7.4) pivoted rotary trough.

6. A steady rest as claimed in claim 1, wherein: threaded rod (15.3) surface is equipped with the external screw thread, be equipped with the internal thread with external screw thread engaged with in slide bar (15.4), slide bar (15.4) and fixed frame (15.1) sliding connection.