CN220260255U

CN220260255U - Internal support fixing device of machine tool

Info

Publication number: CN220260255U
Application number: CN202321987897.2U
Authority: CN
Inventors: 袁用桂
Original assignee: Shenzhen Weibotong Technology Co ltd
Current assignee: Shenzhen Weibotong Technology Co ltd
Priority date: 2023-07-26
Filing date: 2023-07-26
Publication date: 2023-12-29
Anticipated expiration: 2033-07-26

Abstract

The utility model relates to a lathe internal stay fixing device, belong to the lathe anchor clamps field, the interior circle or the inside of work piece need make the dead lever alone among the conventional technical means, this application chucking work piece through the expansion of fixed block, it includes mounting base member and fixed subassembly, fixed subassembly detachably connects on the mounting base member, the mounting base member includes the support column, mounting panel and fixed driving piece, support column and mounting panel fixed connection, fixed driving piece sets up in the bottom of mounting panel, fixed driving piece has the drive shaft, the last holding through-hole that is used for the drive shaft to pass that has of mounting panel; the fixed subassembly is including installation fixed plate and two at least fixed blocks, has the spout that is used for the fixed block to slide on the installation fixed plate, and the fixed block is including strutting chucking portion and slope remove portion, has the propping open that is used for strutting a plurality of chucking portions in the drive shaft, and this application is mainly applied to the condition that needs fixed work piece interior circle or inside, has to improve single dead lever suitability end, effect that the cost of manufacture is high.

Description

Internal support fixing device of machine tool

Technical Field

The application relates to the field of machine tool fixtures, in particular to a machine tool inner support fixing device.

Background

Machine tools refer to machines that make up machines and play a significant role in industrial production and life. The machine tool comprises a lathe, a boring machine, a milling machine, a planing machine, a grinding machine, a drilling machine and the like. In order to ensure the machining accuracy when machining a workpiece on a machine tool, the workpiece must first occupy a correct position, i.e. position, on the machine tool and then be clamped, a process of positioning and clamping is called clamping of the workpiece.

In the related technical means, when the outer surface of a workpiece with a square hole or a round hole is machined, a fixing rod matched with the square hole or the round hole is usually required to be independently manufactured, and the workpiece is placed on a machine tool platform by penetrating the fixing rod through the square hole or the round hole.

Aiming at the technical means, because the sizes of the square holes or the round holes between different workpieces are different in size and radius, a great amount of time and cost are consumed for manufacturing the fixing rod during processing, and therefore the problem of low adaptability and high manufacturing cost of a single fixing rod exists.

Disclosure of Invention

In order to improve the problem of high manufacturing cost of a single fixing rod fit bottom, the application provides a machine tool internal stay fixing device.

The application provides a lathe internal stay fixing device adopts following technical scheme:

the utility model provides a lathe internal stay fixing device, includes mounting base member and fixed subassembly, fixed subassembly detachably connects on the mounting base member, the mounting base member includes support column, mounting panel and fixed driving piece, the support column with mounting panel fixed connection, fixed driving piece sets up the bottom of mounting panel, fixed driving piece has the drive shaft, the mounting panel is last to have the accommodation through-hole that is used for the drive shaft passes; the fixing assembly comprises an installation fixing plate and at least two fixing blocks, wherein the installation fixing plate is provided with a sliding groove used for sliding the fixing blocks, the fixing blocks comprise a stretching clamping part and an inclined moving part, and the driving shaft is provided with stretching ends used for stretching a plurality of stretching clamping parts.

Through adopting above-mentioned technical scheme, the work piece cover struts chucking department on, and the drive shaft removes on the fixed driving piece, under the effect of propping open end on the drive shaft, struts chucking department and supports the inside round hole or the inside square hole of work piece to realize the clamp fastening of work piece, reduced the preparation of dead lever. And meanwhile, the fixing assembly is detachably arranged on the mounting base body, so that a proper fixing block can be timely replaced according to the requirement.

Optionally, the fixed block is provided with four, and a plurality of fixed blocks are evenly distributed around the circumference of the driving shaft and form a strutting space in the middle.

Through adopting above-mentioned technical scheme, when pressing from both sides tight fixed, the setting of four fixed blocks can increase with the interior round or the inside area of contact of work piece, increase friction, guarantee as far as the work piece is fixed firm.

Optionally, the inclined moving part is located above the opening clamping part, the inclined moving part is provided with an inclined guiding surface, the inclined guiding surface is inclined towards a direction perpendicular to a horizontal plane and towards a direction close to the center of the opening space, the opening end is an opening guiding surface, and the opening guiding surface and the inclined guiding surface are in the same inclination direction.

Through adopting above-mentioned technical scheme, the in-process that the epaxial end that struts of drive retracted, the slope guide face on the fixed block is under the effect of propping up the guide face, moves to the direction of keeping away from the drive shaft center, and then will prop up clamping part chucking in the internal diameter of work piece.

Optionally, the tilt moving part is located below the opening clamping part, the tilt moving part has a tilt guiding surface, the tilt guiding surface is inclined towards a direction perpendicular to a horizontal plane and towards a direction away from the center of the opening space, the opening end is an opening guiding surface, and the opening guiding surface and the tilt guiding surface have the same tilt direction.

Through adopting above-mentioned technical scheme, prop up the in-process that open the end jack-up on the drive shaft, the slope guide face on the fixed block is under the effect of propping up the guide face, moves to the direction of keeping away from the drive shaft center, and then will prop up chucking portion chucking in the internal diameter of work piece.

Optionally, the inside wall of spout is protruding to have spacing boss, the fixed block still includes spacing portion of sliding, the indent has spacing spout on the spacing portion of sliding lateral wall, spacing boss with spacing boss cooperation of sliding.

Through adopting above-mentioned technical scheme, carry out spacingly to the upper and lower direction of fixed block, avoid the fixed block to be propped up or the in-process of return, can not drive the fixed block by the jack-up of drive shaft simultaneously.

Optionally, the fixed subassembly still includes return spring, return spring one end butt limit sliding part's side, the groove lateral wall of other end butt spout.

Through adopting above-mentioned technical scheme, when the drive shaft is retracted, the fixed block can get back to initial position under return spring's elasticity effect, also can relax the work piece simultaneously to take out the work piece.

Optionally, the limiting sliding part is provided with a clamping hole, and one end of the return spring is positioned in the clamping hole and is abutted against the bottom of the clamping hole.

By adopting the technical scheme, the return spring is prevented from being separated from the chute by self elasticity by limiting the movement of the return spring.

Optionally, the installation base member still includes the bottom plate, the support column simultaneously with bottom plate with mounting panel fixed connection, fixed driving piece is fixed on the bottom plate, and is located between bottom plate and the mounting panel.

Through adopting above-mentioned technical scheme, the setting of bottom plate lets fixed driving piece fix on the device to can be with the nimble removal of device, convenient dismantlement is changed suitable fixed subassembly.

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

1. flexibility and suitability. Under the effect of the open end on the driving shaft, the open clamping part moves towards the direction away from each other to clamp the inner circle or the inner side of the workpiece, and when the inner circle or the inner side of the workpiece is too large or too small, the proper size can be adapted by disassembling the fixing component, so that unnecessary fixing rod manufacturing is reduced.

2. And (5) returning the fixed block. When the driving shaft is retracted, the fixing block can return to the initial position under the action of the elastic force of the return spring, and meanwhile, the workpiece can be loosened, so that the workpiece can be taken out.

Drawings

Fig. 1 is a schematic view of the overall structure of a machine tool inner support fixing device according to embodiment 1 of the present application;

FIG. 2 is a schematic view of an exploded structure of a mounting base of an internal stay fixture for a machine tool according to embodiment 1 of the present application;

FIG. 3 is a schematic view of an exploded structure of a fixing assembly of an internal stay fixing device of a machine tool according to embodiment 1 of the present application;

fig. 4 is a schematic structural view of a fixing block of an internal support fixing device of a machine tool according to embodiment 1 of the present application;

FIG. 5 is a cross-sectional view of a machine tool inner support fixture according to embodiment 1 of the present application;

FIG. 6 is a cross-sectional view of a machine tool inner support fixture according to embodiment 2 of the present application;

reference numerals illustrate:

1. a mounting substrate; 11. a support column; 12. a mounting plate; 121. accommodating the through hole; 13. fixing the driving piece; 131. a drive shaft; 1311. a support end; 1312. a distraction guide surface; 14. a bottom plate;

2. a fixing assembly; 21. installing a fixing plate; 211. a chute; 2111. a limiting hole; 212. a limit boss; 213. perforating; 22. a fixed block; 221. a clamping part is opened; 222. an inclined moving part; 2221. a sloped guide surface; 223. a limit sliding part; 2231. limiting sliding grooves; 2232. a clamping hole; 224. opening the space; 23. and a return spring.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-6.

The embodiment of the application discloses a machine tool internal stay fixing device.

Referring to fig. 1 and 2, the machine tool internal stay fixing device comprises a mounting base body 1 and a fixing assembly 2 fixed above the mounting base body 1 by bolts, and products with different inner diameters are needed to be replaced, so that a clamp corresponding to the products is needed to be replaced, and convenience is improved. The mounting base 1 comprises a support column 11, a mounting plate 12, a fixed driving piece 13 and a bottom plate 14, wherein the support column 11 is connected with the mounting plate 12 and the bottom plate 14 simultaneously and fixed through bolts, the bottom plate 14 is arranged below the support column 11, the mounting plate 12 is arranged above the support column 11, and the fixed driving piece 13 is fixed on the bottom plate 14. The fixed driving member 13 has a driving shaft 131, the driving shaft 131 can be extended and retracted by the fixed driving member 13, and the mounting plate 12 has a receiving through hole 121 for providing a moving space of the driving shaft 131. In the present embodiment, the fixed driving member 13 is a cylinder.

Referring to fig. 3, the fixing assembly 2 includes a mounting plate 21, a plurality of fixing blocks 22, and a plurality of return springs 23, the mounting plate 21 is fastened to the mounting plate 12 by bolts, and the fixing blocks 22 and the return springs 23 are disposed inside the mounting plate 21. Specifically, the mounting and fixing plate 21 has a through hole 213 and a plurality of sliding grooves 211, and the plurality of sliding grooves 211 are uniformly distributed circumferentially around the center of the through hole 213. The fixed blocks 22 are placed in the sliding grooves 211, also uniformly distributed circumferentially around the center of the through holes 213.

Referring to fig. 4, the fixing block 22 is divided into a spreading clamping part 221, an inclined moving part 222 and a limiting sliding part 223, wherein the limiting sliding part 223 slides in the sliding groove 211, the inclined moving part 222 is disposed at one end of the limiting sliding part 223 near the through hole 213, the spreading clamping part 221 is located above the inclined moving part 222, the spreading clamping part 221 is connected with the inclined moving part 222 while being perpendicular to the limiting sliding part 223, and the spreading clamping part 221 protrudes in a direction away from the mounting fixing plate 21.

Referring to fig. 2 and 5, the top of the driving shaft 131 has a spreading end 1311, the radius of the spreading end 1311 is gradually reduced from the bottom to the top to form a truncated cone, and the sides are spreading guide surfaces 1312, the spreading guide surfaces 1312 being inclined in a direction perpendicular to the horizontal plane and away from the center of the driving shaft 131. The inclined moving portion 222 has an inclined guide surface 2221, and the inclined guide surface 2221 is inclined in a direction perpendicular to the horizontal plane and away from the center of the drive shaft 131, so that the inclined guide surface 2221 on the fixed block 22 moves in a direction away from the center of the drive shaft 131 by the expanding guide surface 1312 during the jacking of the drive shaft 131, and further the expanding clamping portion 221 is clamped in the inner diameter of the workpiece. Specifically, the plurality of propping-up clamping parts 221 are enclosed to form a broken ring shape, and the middle part is a propping-up space 224, so that not only can the inner round workpiece be clamped, but also the inner part can be clamped.

Referring to fig. 3, one end of the return spring 23 abuts one side of the limit sliding portion 223 and the other end abuts the side wall of the sliding groove 211, so that when the driving shaft 131 is retracted, the fixing block 22 can return to the original position under the elastic force of the return spring 23, and simultaneously, the workpiece can be loosened to take out the workpiece.

In addition, the side walls on the left side and the right side of the sliding groove 211 are provided with limiting bosses 212, the left side and the right side of the limiting sliding part 223 are provided with limiting sliding grooves 2231, and the limiting bosses 212 are in sliding fit with the limiting sliding grooves 2231, so that the limiting of the fixing block 22 in the up-down direction is realized, and the fixing block 22 is prevented from being propped up or being lifted up simultaneously due to the lifting up of the driving shaft 131 in the process of the fixing block 22 being propped up or being returned. The side wall of the sliding chute 211 far away from the perforation 213 is provided with a limiting hole 2111, the side surface of the limiting sliding part 223 opposite to the limiting block is provided with a clamping hole 2232, one end of the return spring 23 is positioned in the limiting hole 2111 and is abutted against the hole bottom of the limiting hole 2111, and the other end of the return spring 23 is positioned in the clamping hole 2232 and is abutted against the hole bottom of the clamping hole 2232, so that the movement of the return spring 23 is limited, and the return spring 23 is prevented from being separated from the sliding chute 211 by self elastic force.

Referring to fig. 6, in another embodiment, the radius of the expanding end 1311 of the driving shaft 131 is gradually reduced from the top to the bottom to form an inverted cone, the inclined moving part 222 is located above the expanding clamping part 221, and the expanding guide surface 1312 is inclined toward the direction perpendicular to the horizontal plane and toward the center of the driving shaft 131, the inclined guide surface 2221 is inclined toward the direction perpendicular to the horizontal plane and toward the center of the driving shaft 131, and during the retraction of the driving shaft 131, the inclined guide surface 2221 of the fixing block 22 is moved away from the center of the driving shaft 131 by the expanding guide surface 1312, thereby clamping the expanding clamping part 221 in the inner diameter of the workpiece.

The implementation principle of the machine tool internal stay fixing device provided by the embodiment of the application is as follows:

the inner circle or the inner side of the workpiece is sleeved on the four expanding and clamping parts 221, then the driving shaft 131 on the fixed driving piece 13 is jacked up, and the inclined guide surface 2221 on the fixed block 22 moves away from the center of the driving shaft 131 under the action of the expanding guide surface 1312 in the jacking process, so that the expanding and clamping parts 221 are clamped in the inner diameter of the workpiece. After the machining is completed, the driving shaft 131 is retracted, and the fixing block 22 is returned to the original position by the elastic force of the return spring 23.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way. Wherein like parts are designated by like reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "inner" and "outer" refer to directions toward or away from, respectively, the geometric center of a particular component. Therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides a lathe internal stay fixing device, its characterized in that includes mounting base member (1) and fixed subassembly (2), fixed subassembly (2) detachable connection is in on mounting base member (1), mounting base member (1) include support column (11), mounting panel (12) and fixed driving piece (13), support column (11) with mounting panel (12) fixed connection, fixed driving piece (13) set up the bottom of mounting panel (12), fixed driving piece (13) have drive shaft (131), be used for on mounting panel (12) accommodation through-hole (121) that drive shaft (131) passed; the fixing assembly (2) comprises a mounting fixing plate (21) and at least two fixing blocks (22), wherein the mounting fixing plate (21) is provided with a sliding groove (211) used for sliding the fixing blocks (22), the fixing blocks (22) comprise a spreading clamping part (221) and an inclined moving part (222), and the driving shaft (131) is provided with spreading ends (1311) used for spreading a plurality of the spreading clamping parts (221).

2. An internal stay fixture for machine tools according to claim 1, characterized in that four of the fixing blocks (22) are provided, and a plurality of the fixing blocks (22) are uniformly distributed circumferentially around the driving shaft (131) and form an open space (224) in the middle.

3. The machine tool inner support fixing device according to claim 2, wherein the inclined moving portion (222) is located above the support clamping portion (221), the inclined moving portion (222) has an inclined guide surface (2221), the inclined guide surface (2221) is inclined toward a direction perpendicular to a horizontal plane and toward a direction approaching a center of the support space (224), the support end (1311) is a support guide surface (1312), and the support guide surface (1312) is inclined in the same direction as the inclined guide surface (2221).

4. The machine tool inner support fixing device according to claim 2, wherein the inclined moving portion (222) is located below the support clamping portion (221), the inclined moving portion (222) has an inclined guide surface (2221), the inclined guide surface (2221) is inclined toward a direction perpendicular to a horizontal plane and toward a direction away from a center of the support space (224), the support end (1311) is a support guide surface (1312), and the support guide surface (1312) is inclined in the same direction as the inclined guide surface (2221).

5. The machine tool internal stay fixing device according to claim 1, wherein a limiting boss (212) protrudes from the inner side wall of the sliding groove (211), the fixing block (22) further comprises a limiting sliding part (223), a limiting sliding groove (2231) is recessed in the side wall of the limiting sliding part (223), and the limiting boss (212) is in sliding fit with the limiting boss (212).

6. The internal stay fixing device of a machine tool according to claim 5, wherein the fixing assembly (2) further comprises a return spring (23), one end of the return spring (23) is abutted against the side surface of the limit sliding part (223), and the other end is abutted against the groove side wall of the sliding groove (211).

7. The internal stay fixing device of a machine tool according to claim 6, wherein the limit sliding part (223) is provided with a clamping hole (2232), and one end of the return spring (23) is positioned in the clamping hole (2232) and is abutted against the bottom of the clamping hole (2232).

8. An internal support fixing device for a machine tool according to claim 1, wherein the mounting base (1) further comprises a bottom plate (14), the support column (11) is fixedly connected with the bottom plate (14) and the mounting plate (12) at the same time, and the fixing driving member (13) is fixed on the bottom plate (14) and is located between the bottom plate (14) and the mounting plate (12).