CN216540880U

CN216540880U - Blank cap tool with adjustable supporting radius

Info

Publication number: CN216540880U
Application number: CN202122493810.3U
Authority: CN
Inventors: 吕朝晖; 李苗苗; 朱昌平; 吴涛
Original assignee: Taier Heavy Industry Co Ltd
Current assignee: Taier Heavy Industry Co Ltd
Priority date: 2021-10-15
Filing date: 2021-10-15
Publication date: 2022-05-17
Anticipated expiration: 2031-10-15

Abstract

The utility model discloses a blank cap tool with an adjustable support radius, which comprises a sleeve, wherein the sleeve comprises a barrel body and a tail end baffle, and a rear cover plate is detachably connected to the tail end baffle; the cylinder body is uniformly provided with a plurality of square holes along the circumference, supporting plates are respectively arranged in the square holes in a sliding manner, and pyramids are arranged in the cylinder body in a sliding manner through supporting devices; the pyramid comprises a conical base body and a tail extending column which are arranged on the left and right, and the tail extending column penetrates through the rear cover plate and has a gap with the penetrating position of the rear cover plate; the bottom end of the supporting plate is connected with the conical base body in a sliding mode, and the top end of the supporting plate is an arc surface. The blank cap tool with the adjustable support radius has the characteristics of convenience in assembly and disassembly, adjustable support radius, axial compression, automatic centering and the like, can meet the use requirements of workpieces with different inner diameters, saves the tool manufacturing cost, improves the workpiece clamping efficiency, and ensures the workpiece processing precision.

Description

Blank cap tool with adjustable supporting radius

Technical Field

The utility model belongs to the field of machinery, and relates to a blank cap tool with an adjustable support radius.

Background

When a horizontal machine tool is used for processing long cylindrical workpieces, the tail supporting tool is a widely used processing tool and is mainly used for quickly fixing the tail of the workpiece and ensuring the processing precision of the workpiece. The traditional tail supporting tool mainly comprises two types, namely a conical umbrella top tool and a special blank cap tool for a specific inner diameter. The umbrella top tool is simple and convenient to use, after one end of a workpiece is clamped, the umbrella top is moved to directly abut against the tail end of the workpiece, and then clamping is completed. The blank cap tool is composed of a boss with the same diameter as the inner diameter of a workpiece and a circular baffle, when the blank cap tool is used, the blank cap is firstly installed at the tail end of the workpiece, then a thimble of a tailstock of a machine tool props against a corresponding central hole of the blank cap to clamp the blank cap and the workpiece, so that the axis of the blank cap and the axis of a main shaft of the machine tool can be kept coincident, but the blank cap tool can only be used for processing the workpiece with a single inner diameter due to the fixed diameter of the boss, and the cost is higher. Therefore, a tail supporting tool which can keep the workpiece and the axis of a machine tool coaxial and can adapt to different inner diameters of the workpiece is particularly important.

SUMMERY OF THE UTILITY MODEL

The utility model provides a blank cap tool with adjustable support radius, which aims to solve the problems that when the existing umbrella-shaped tool or blank cap tool is adopted to process long cylindrical workpieces in the prior art, the existing tool and the workpieces cannot be coaxial or the tool and the workpieces can be coaxial but have higher cost and are only suitable for processing workpieces with single specification.

The technical scheme for solving the technical problem is as follows:

the utility model relates to a blank cap tool with an adjustable support radius, which comprises a sleeve, wherein the sleeve comprises a barrel body and a tail end baffle, and a rear cover plate is detachably connected to the tail end baffle; the cylinder body is uniformly provided with a plurality of square holes along the circumference, the square holes are respectively provided with a support plate in a sliding manner, and the cylinder body is internally provided with a pyramid body which is coaxial with the cylinder body in a sliding manner through a support device; the pyramid comprises a conical base body and a tail extending column which are arranged on the left and right, and the tail extending column penetrates through the rear cover plate and has a gap with the penetrating position of the rear cover plate; the bottom end of the supporting plate is connected with the conical base body in a sliding mode, and the top end of the supporting plate is an arc surface.

As a further improvement of the technical scheme, T-shaped grooves are formed in the bottom ends of the supporting plates, T-shaped plates matched with the T-shaped grooves are arranged at the positions, corresponding to the supporting plates, of the conical base body respectively, and the supporting plates are in sliding connection with the corresponding T-shaped plates on the conical base body through the T-shaped grooves.

As a further improvement of the technical scheme, the front end of the cylinder body is detachably connected with a front cover plate, the supporting device comprises a plurality of penetrating rods which are detachably connected between the front cover plate and the rear cover plate and are parallel to the axial center line of the cylinder body, a plurality of through holes corresponding to the penetrating rods are formed in the conical base body, and the through holes are respectively sleeved on the outer sides of the corresponding penetrating rods.

As a further improvement of the technical scheme, the number of the square holes on the cylinder body is 3.

As a further improvement of the technical scheme, the number of the penetrating rods is 3, and the penetrating rods are uniformly distributed around the tail extending column respectively.

As a further improvement of the technical scheme, the tail end baffle and the rear cover plate are fixedly connected through a plurality of uniformly distributed second bolts; the front end of the barrel is fixedly connected with the front cover plate through a plurality of first bolts which are uniformly distributed; and two ends of the penetrating rod are respectively connected and fixed with the front cover plate and the rear cover plate through nuts.

Compared with the prior art, the utility model has novel design, reasonable structure, simple assembly and convenient and quick operation; compared with the traditional umbrella top tool, the umbrella top tool provided by the utility model has the advantages that the tail end baffle on the sleeve props against the workpiece, and the workpiece is axially compressed under the action of the ejector pin of the tail seat of the machine tool, so that the alignment of the workpiece and the axis of the machine tool is ensured, and meanwhile, the contact surface of the supporting plate and the workpiece is an arc surface, so that the problems of workpiece deformation, crushing and the like caused by the fact that the contact surface is in line contact are avoided; compared with a special blank cap tool, the tool has the advantages that the available range of the tool is enlarged, the cost of the tool is reduced, and the clamping efficiency of workpieces is improved.

Drawings

FIG. 1 is a front cross-sectional structural schematic view of the present invention;

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic view of the utility model taken vertically in section at the support plate;

FIG. 4 is a schematic perspective view of the present invention;

FIG. 5 is a schematic perspective view of another embodiment of the present invention;

in the figure: 1. the tail end of the T-shaped groove is provided with a sleeve, 11, a cylinder body, 12, a tail end baffle, 13, a square hole, 2, a supporting plate, 21, a T-shaped groove, 3, a pyramid, 31, a conical base body, 32, a tail extension column, 33, a T-shaped plate, 4, a rear cover plate, 5, a penetrating rod, 6, a front cover plate, 7, a first bolt, 8, a nut, 9, a second bolt, 10, a workpiece, 20 and a tail seat thimble.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The present invention is not described in detail, but is known to those skilled in the art.

As shown in fig. 1 to 5, the blank cap tool with adjustable support radius of the utility model comprises a sleeve 1, a support plate 2, a pyramid 3, a rear cover plate 4, a through rod 5 and a front cover plate 6; the sleeve 1 comprises a cylinder body 11 and a tail end baffle 12, the front end of the cylinder body 11 is detachably connected with a front cover plate 6 through a plurality of first bolts 7 which are uniformly distributed along the circumference, and the tail end baffle 12 is detachably connected with a rear cover plate 4 through second bolts 9 which are uniformly distributed along the circumference of the end face of the tail end baffle; the barrel 11 is uniformly provided with a plurality of square holes 13 along the circumference, the number of the square holes 13 is preferably 3, a support plate 2 is arranged in each square hole 13 in a sliding manner, a pyramid 3 coaxial with the barrel 11 is arranged in the barrel 11 in a sliding manner through a support device, the support device is arranged between a front cover plate 6 and a rear cover plate 4 and is used for supporting the pyramid 3, so that the pyramid 3 can slide back and forth on the support device under the action of external force, and meanwhile, the pyramid 3 and the barrel 11 are kept coaxial; the pyramid 3 comprises a conical base body 31 and a tail extension column 32 which are arranged on the left and right sides, the tail extension column 32 penetrates through the rear cover plate 4 and has a certain gap with the penetrating position of the rear cover plate 4, so that when the pyramid 3 slides back and forth under the action of external force, no friction exists between the tail extension column 32 and the rear cover plate 4 to keep smooth sliding, and the end part of the tail extension column 32 is also provided with a central hole which is convenient to be matched with a tailstock thimble of a machine tool for use; the bottom and the conical base member 31 sliding connection of backup pad 2, this backup pad 2 can be under conical base member 31's effect, become the vertical displacement of self with conical base member 31's horizontal displacement conversion when conical base member 31 horizontal slip to the clamping to the work piece is realized, and 2 tops of backup pad are the arc surface in addition, are convenient for when the clamping work piece, and the contact surface is the face contact between backup pad 2 and the work piece, avoids the work piece to take place to warp, the phenomenon of conquassation man-hour. When the device is used, the cylinder body 11 of the sleeve 1 extends into the long cylindrical workpiece 10, the tail baffle 12 of the sleeve 1 is abutted against the end part of the workpiece 10, then the tail extension column 33 of the pyramid 3 is abutted by the tailstock thimble 11 of a machine tool and moves forwards, and the cone base body 31 drives each support plate 2 to vertically move upwards in the moving process until the inner side of the workpiece 10 is completely supported; after the workpiece 10 is machined, the tailstock thimble 20 is loosened, and then the workpiece 10 can be clamped and used for the next workpiece 10, so that the method is convenient and quick.

In this embodiment, in order to facilitate the sliding connection between the support plate 2 and the conical base 31, the bottom end of the support plate 2 is provided with a T-shaped groove 21, the conical base 31 and each support plate 2 are provided with a T-shaped plate 33 corresponding to the T-shaped groove 21, the support plate 2 is slidably connected to the corresponding T-shaped plate 33 on the conical base 31 through the T-shaped groove 21, the T-shaped groove 21 is obliquely arranged at the bottom end of the support plate 2 and is matched with the T-shaped plate 33 of the conical base 31, when the conical base 31 moves back and forth, that is, the T-shaped plate 33 moves back and forth, the support plate 2 slidably connected to the T-shaped plate 33 through the T-shaped groove 31 can move up or down, the horizontal displacement of the conical base 31 is converted into the vertical displacement of the support plate 2, and the workpiece 10 is clamped.

In this embodiment, in order to ensure that the pyramid 3 is located on the central axis of the workpiece 10 when the present invention is used, the supporting device includes a plurality of penetrating rods 5 which are detachably connected between the front cover plate 6 and the rear cover plate 4 and are parallel to the axial central line of the cylinder 11, in specific implementation, a plurality of penetrating holes, preferably 3 penetrating rods 5, are uniformly arranged on the conical base 31 around the axial central line thereof, and are arranged in an equilateral triangle shape, each penetrating hole penetrates through and is slidably connected with one penetrating rod 5, when the penetrating holes are formed, it is ensured that each penetrating rod 5 can be uniformly distributed around the tail extending column 32 after each penetrating hole penetrates through one penetrating rod 5, and the front end and the rear end of each penetrating rod 5 are detachably connected and fixed with the front cover plate 6 and the rear cover plate 4 through nuts 8.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.

Claims

1. The utility model provides a stifled frock with adjustable support radius which characterized in that: the sleeve comprises a sleeve (1), wherein the sleeve (1) comprises a barrel body (11) and a tail end baffle (12), and a rear cover plate (4) is detachably connected to the tail end baffle (12); a plurality of square holes (13) are uniformly formed in the cylinder body (11) along the circumference, supporting plates (2) are respectively arranged in the square holes (13) in a sliding manner, and pyramids (3) coaxial with the cylinder body (11) are arranged in the cylinder body (11) in a sliding manner through supporting devices; the pyramid (3) comprises a conical base body (31) and a tail extension column (32) which are arranged on the left and right sides, and the tail extension column (32) penetrates through the rear cover plate (4) and has a gap with the penetrating position of the rear cover plate (4); the bottom end of the supporting plate (2) is connected with the conical base body (31) in a sliding mode, and the top end of the supporting plate is an arc surface.

2. The blank cap tool with the adjustable support radius of claim 1, wherein: the bottom of backup pad (2) is provided with T type groove (21), conical base member (31) and each backup pad (2) corresponding position are provided with T template (33) with T type groove (21) looks adaptation respectively, backup pad (2) are through corresponding T template (33) sliding connection on T type groove (21) and conical base member (31).

3. The blank cap tool with the adjustable support radius of claim 1 or 2, wherein: the utility model discloses a cylinder, including barrel (11), strutting arrangement, conical base body (31), barrel (11) front end can be dismantled and be connected with front shroud (6), strutting arrangement is including dismantling a plurality of penetrating rod (5) that are on a parallel with barrel (11) axial centerline of connecting between front shroud (6) and back shroud (4), seted up a plurality of and respectively run through the corresponding through-hole of rod (5) on conical base body (31), corresponding penetrating rod (5) outside is located to each through-hole cover respectively.

4. The blank cap tool with the adjustable support radius of claim 3, wherein: the number of the square holes (13) on the cylinder body (11) is 3.

5. The blank cap tool with the adjustable support radius of claim 4, wherein: the number of the penetrating rods (5) is 3, and the penetrating rods are uniformly distributed around the tail extending column (32) respectively.

6. The blank cap tool with the adjustable support radius of claim 5, wherein: the tail end baffle (12) is fixedly connected with the rear cover plate (4) through a plurality of uniformly distributed second bolts (9); the front end of the barrel (11) is fixedly connected with the front cover plate (6) through a plurality of uniformly distributed first bolts (7); the two ends of the penetrating rod (5) are respectively connected and fixed with the front cover plate (6) and the rear cover plate (4) through nuts (8).