CN218904444U

CN218904444U - Tool clamp for releasing guide rail

Info

Publication number: CN218904444U
Application number: CN202223481160.1U
Authority: CN
Inventors: 胡善刚; 吴华明
Original assignee: Wuhan Fengyun Zhenghua Precision Technology Co ltd
Current assignee: Wuhan Fengyun Zhenghua Precision Technology Co ltd
Priority date: 2022-12-22
Filing date: 2022-12-22
Publication date: 2023-04-25
Anticipated expiration: 2032-12-22

Abstract

The utility model discloses a fixture for releasing guide rails, which relates to the technical field of fixtures, and particularly comprises a base, wherein the top surface of the base is divided into a front end part and a tail end part; the front end part and the tail end part are respectively integrally formed with a fitting groove hole and an adapting groove corresponding to the special-shaped structure of the guide rail body, and the end part of the adapting groove is also provided with an end groove; a plurality of side clamping blocks are fixed on two sides of the base from left to right through M10 bolts. The utility model is mainly used in the finish machining process of the release guide rail, so that the release guide rail can be positioned and fixed on the fixture effectively no matter in finish machining of the front surface or the bottom surface, the workpiece is not required to be clamped and fixed for the second time in single-sided double-sided machining, the machining precision of the single side and double sides of the workpiece can be effectively improved, and the qualification rate of product machining is improved.

Description

Tool clamp for releasing guide rail

Technical Field

The utility model relates to the technical field of tool clamps, in particular to a tool clamp for releasing a guide rail.

Background

In the existing military aviation products, the precision of four release guide rails of a projectile body empennage directly influences whether the projectile body empennage can be smoothly stretched or not, and plays an important role in the projectile body launching process; the release guide rail of the elastomer is cast by 40CR alloy steel, the length of the release guide rail is 1600 mm, the width of the release guide rail is 95 mm, the thickness of the release guide rail is 35 mm, the thinnest part of the release guide rail is 6 mm, and the release guide rail is shaped and structured as shown in figure 5, and belongs to a typical slender thin-wall part.

The release guide rail of the projectile body is generally divided into two working procedures of rough machining and finish machining, the rough machining mainly comprises the steps of carrying out preliminary modeling on a cast blank body, turning out a rough structural form, transferring to a finish machining lathe to carry out finish machining treatment on two sides, clamping the thickness direction of a workpiece by adopting a parallel jaw during single-sided finish machining, replacing the other side after turning out, and re-clamping the workpiece by turning back the parallel jaw during the period.

Therefore, we propose a special fixture for finishing the release guide rail of the projectile body tail wing.

Disclosure of Invention

The utility model provides a fixture clamp for a release guide rail, which aims at solving the problems that the dimensional accuracy is difficult to guarantee when an existing projectile body tail wing release guide rail is processed, clamping is difficult due to special structure during turning and the like.

The utility model discloses a fixture for releasing guide rails, which comprises a base and pad feet distributed at the bottom of the base and used for fixedly mounting the base on a machine tool, wherein the top surface of the base is divided into a front end part and a tail end part; in order to realize that the release guide rail does not need secondary clamping when in single-sided finish machining, the precision of the same-sided double-sided finish machining is improved, deformation is avoided during machining, a fitting groove hole and an adaptation groove are integrally formed in the front end part and the tail end part respectively corresponding to the special-shaped structure of the guide rail body, and an end groove is further formed in the end part of the adaptation groove; the two sides of the base are fixedly provided with a plurality of side clamping blocks from left to right through M10 bolts, and screw holes for screwing screws are further formed in the front end part and the tail end part of the base corresponding to the drilling positions on the guide rail body.

Further, in order to prevent the side clamping blocks from rotating and dislocating when being matched with the M10 bolts for fixation, positioning notch grooves are arranged at the front end part and the tail end part of the base corresponding to the process tables at the two sides of the guide rail body; and the side clamping blocks are arranged in the positioning notch, and the notch structure of the positioning notch and the bottom structure of the side clamping blocks are designed in an adaptive manner and are designed in a rectangular structure.

After the side clamping blocks are matched with the positioning notch, the groove wall of the positioning notch can effectively limit the periphery of the side clamping blocks, and the phenomenon that the M10 bolts drive the side clamping blocks to rotate when being screwed up is effectively avoided.

Furthermore, in order to realize the effective fixation of the guide rail body, the side clamping blocks are composed of cushion blocks arranged in the positioning notch and pressing blocks integrally formed on the side edges of the cushion blocks and used for pressing the process table on the side of the guide rail.

Further, in order to enable the guide rail body to be matched with the tool clamp during finish machining, final clamping and fixing are achieved, a process table matched with the side clamping block in position is reserved on the side of the guide rail body during rough machining, and drilling holes matched with the screw hole in the base are formed in the side lugs on the side of the guide rail body.

Further, the special-shaped structure of the guide rail body comprises a groove body which corresponds to one end of the tail end part of the base and is integrally formed, and a positioning plate which corresponds to one end of the front end part of the base, wherein the depth and the width of the adapting groove and the end groove are matched with the size of the groove body on the guide rail body, and the structure of the engaging groove hole is matched with the positioning plate on the guide rail body.

Compared with the prior art, the utility model has the following beneficial effects:

the utility model is mainly used in the finish machining process of the release guide rail, and by correspondingly arranging the grooves and the holes which are matched with the guide rail body at the positions of the special-shaped structures on the base and combining a plurality of process stations and drilling holes reserved for the guide rail body during rough machining, the release guide rail can be effectively positioned and fixed on the fixture no matter in finish machining of the front surface or the bottom surface, so that the workpiece is not required to be clamped and fixed for two times during single-sided double-sided machining, the machining precision of the single-sided double-sided of the workpiece can be effectively improved, and the qualification rate of product machining is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:

FIG. 1 is a schematic diagram of an exploded construction of the present utility model;

FIG. 2 is a schematic view of an exploded view of the present utility model in combination with a guide rail;

FIG. 3 is a schematic view of the structure of the rail body with the concave surface and the base being fixed in a matching manner;

FIG. 4 is a schematic view of the structure of the guide rail body when the convex surface is matched and fixed with the base;

fig. 5 is a schematic view of the structure of the guide rail body.

In the figure: 1. a base; 101. a front end portion; 102. a tail end portion; 2. foot pads; 3. an adaptation groove; 4. fitting the slotted hole; 5. an end groove; 6. positioning the notch; 7. screw holes; 8. a side clamping block; 9. m10 bolts; 10. a screw; 11. a guide rail body.

Detailed Description

Various embodiments of the present utility model are disclosed in the following drawings, which are presented in sufficient detail to provide a thorough understanding of the present utility model. However, it should be understood that these physical details should not be used to limit the utility model. That is, in some embodiments of the present utility model, these physical details are not necessary. Moreover, for the sake of simplicity of illustration, some well-known and conventional structures and components are shown in the drawings in a simplified schematic manner.

Referring to fig. 1, 2 and 5, the disclosed fixture for releasing guide rail includes a base 1 and pads 2 distributed at the bottom of the base 1 for fixing the base 1 to a machine tool, wherein the top surface of the base 1 is divided into a front end 101 and a rear end 102; in order to realize that secondary clamping is not needed when the release guide rail is subjected to single-sided finish machining, the precision of the same-sided double-sided finish machining is improved, deformation is avoided during machining, a fitting slot hole 4 and an adapting groove 3 are integrally formed in the front end part 101 and the tail end part 102 respectively corresponding to the special-shaped structure of the guide rail body 11, and an end groove 5 is further formed in the end part of the adapting groove 3; a plurality of side clamping blocks 8 are fixed on two sides of the base 1 from left to right through M10 bolts 9, and screw holes 7 for screwing screws 10 are further formed in the positions, corresponding to drilling positions on the guide rail body 11, of the two sides of the front end portion 101 and the tail end portion 102 of the base 1.

Referring to fig. 1 and 2, in order to prevent the side clamping blocks 8 from rotating and dislocating when being fixed by being matched with the M10 bolts 9; positioning grooves 6 are formed in the front end 101 and the rear end 102 of the base 1 and correspond to the process stations on the two sides of the guide rail body 11; and the side clamping blocks 8 are arranged in the positioning notch 6, and the notch structure of the positioning notch 6 and the bottom structure of the side clamping blocks 8 are in an adaptive design and are both in a rectangular structural design.

After the side clamping blocks 8 are matched with the positioning notch 6, the walls of the positioning notch 6 can effectively limit the periphery of the side clamping blocks 8, and the situation that the M10 bolts 9 drive the side clamping blocks 8 to rotate when being screwed is effectively avoided.

Referring to fig. 1, in order to achieve effective fixation of the guide rail body 11, the side clamping blocks 8 are composed of cushion blocks installed in the positioning notch 6 and pressing blocks integrally formed at the sides of the cushion blocks for pressing the process table at the sides of the guide rail.

Referring to fig. 1, 2 and 5, in order to enable the guide rail body 11 to be matched with the fixture clamp during finish machining, final clamping and fixing are achieved, a process table matched with the side clamping block 8 is reserved on the side of the guide rail body 11 during rough machining, and drilling matched with the screw hole 7 on the base 1 is formed in the side lug on the side of the guide rail body 11.

Referring to fig. 3, the special-shaped structure of the guide rail body 11 includes a groove body integrally formed at one end of the tail end 102 corresponding to the base 1, and a positioning plate corresponding to one end of the front end 101 of the base 1, wherein the depth and width of the adapting groove 3 and the end groove 5 are adapted to the size of the groove body on the guide rail body 11, and the structure of the engaging slot 4 is adapted to the positioning plate on the guide rail body 11.

When the release guide rail is machined, the release guide rail is fixed by adopting a concave surface and a convex surface according to the required surface for machining, as shown in fig. 3 and 4, and the integral positioning fixation is implemented on the release guide rail by a process table reserved for rough machining at the position of the corresponding side clamping blocks 8 on two sides of the guide rail body 11 through the cooperation of the side clamping blocks 8 and the M10 bolts 9, and in order to ensure the stability of workpiece fixation, the release guide rail is further fixed by the cooperation of the bolts 10 with the reserved drilling holes on the guide rail body 11 and the screw holes 7 designed on the base 1, so that the stability of the guide rail body 11 after clamping is effectively ensured, and the integral clamping fixation is distributed on the periphery of the guide rail body 11.

The foregoing description is only illustrative of the utility model and is not to be construed as limiting the utility model. Various modifications and variations of the present utility model will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, or the like, which is within the spirit and principle of the present utility model, should be included in the scope of the claims of the present utility model.

Claims

1. The utility model provides a release guide rail frock clamp, includes base (1) and distributes and be used for base (1) fixed mounting to pad foot (2) on the lathe in base (1) bottom, its characterized in that: the top surface of the base (1) is divided into a front end part (101) and a tail end part (102); the special-shaped structures of the front end part (101) and the tail end part (102) corresponding to the guide rail body (11) are respectively and integrally formed with a fitting slot hole (4) and an adapting groove (3), and the end part of the adapting groove (3) is also provided with an end socket groove (5); the two sides of the base (1) are fixedly provided with a plurality of side clamping blocks (8) from left to right through M10 bolts (9), and screw holes (7) for screwing the screws (10) are further formed in the positions, corresponding to the drilling positions on the guide rail body (11), of the two sides of the front end part (101) and the tail end part (102) of the base (1).

2. The release guide tooling fixture of claim 1, wherein: positioning grooves (6) are formed in the front end part (101) and the rear end part (102) of the base (1) corresponding to the positions of the process tables on the two sides of the guide rail body (11); the side clamping blocks (8) are arranged in the positioning notch (6).

3. The release guide tooling fixture of claim 2, wherein: the notch structure of the positioning notch (6) is matched with the bottom structure of the side clamping block (8), and the notch structure and the bottom structure are both rectangular in structural design.

4. The release guide tooling fixture of claim 2, wherein: the side clamping blocks (8) are composed of cushion blocks arranged in the positioning notch (6) and pressing blocks integrally formed on the side edges of the cushion blocks and used for pressing the process table on the side edges of the guide rails.

5. The release guide tooling fixture of claim 1, wherein: the side of the guide rail body (11) is reserved with a process table matched with the side clamping blocks (8) in position during rough machining, and a drill hole matched with the screw hole (7) in the base (1) in position during rough machining.

6. The release guide tooling fixture of claim 1, wherein: the special-shaped structure of the guide rail body (11) comprises a groove body which corresponds to one end of the tail end (102) of the base (1) and a positioning plate which corresponds to one end of the front end (101) of the base (1), the depth and the width of the adapting groove (3) and the end groove (5) are matched with the groove body on the guide rail body (11) in size, and the structure of the fitting groove hole (4) is matched with the positioning plate on the guide rail body (11).