CN223395112U

CN223395112U - Wedge block clamping device

Info

Publication number: CN223395112U
Application number: CN202422700873.5U
Authority: CN
Inventors: 方苑; 何洪波; 马国彰; 郭强
Original assignee: Sichuan Jiuzhou Electric Group Co Ltd
Current assignee: Sichuan Jiuzhou Electric Group Co Ltd
Priority date: 2024-11-06
Filing date: 2024-11-06
Publication date: 2025-09-30
Anticipated expiration: 2034-11-06

Abstract

The utility model discloses a wedge block clamping device, comprising a clamping base and a wedge block clamping assembly, wherein the wedge block clamping assembly is arranged in the clamping base, a side clamping plate is arranged on one side of the clamping base, a clamping area for clamping a cavity part is formed between the side clamping plate and the wedge block clamping assembly, and the side clamping plate is clamped on one side of the cavity part, the wedge block clamping assembly is clamped on the other side of the cavity part, and the bottom plate of the clamping base abuts against the bottom surface of the cavity part. The clamping base and the wedge block clamping assembly are used to clamp the cavity part, which can increase the contact area between the clamping device and the cavity part, avoid deformation of the part due to uneven force, and at the same time, the wedge block clamping assembly can be used to apply a downward clamping force to the cavity part, thereby solving the problem of part offset in the Z direction.

Description

Wedge clamping device

Technical Field

The utility model relates to the field of part machining clamps, in particular to a wedge clamping device.

Background

In the mechanical manufacturing process, the workpiece is usually clamped and fixed, and a vice, a chuck, a rotary worktable and the like are usually adopted to clamp the workpiece. In the processing of long thin-wall cavity parts, if the conventional vice, chuck and the like are adopted for clamping, the deformation can be generated due to uneven stress of the parts caused by incomplete contact surfaces of the clamp and the parts in the processing process, and meanwhile, the parts can only receive clamping force in the X-Y plane direction, and offset in the Z plane direction is easy to generate in the processing process, so that the problem of reduced processing precision is caused.

Disclosure of utility model

The utility model aims to provide a wedge clamping device which solves the problem that a cavity part is deformed due to uneven stress, and simultaneously applies a downward clamping force to the cavity part, so that the problem that the part is deviated in the Z direction is solved.

The utility model is realized by the following technical scheme:

The utility model provides a wedge clamping device, includes clamping base and wedge clamping assembly, wedge clamping assembly set up in the clamping base, a side of clamping base is provided with the side grip block, the side grip block with form the clamping area that is used for centre gripping cavity part between the wedge clamping assembly, just the side grip block centre gripping in one side of cavity part, wedge clamping assembly centre gripping in another side of cavity part, the bottom plate butt of clamping base in the bottom surface of cavity part. In order to solve the technical problems and achieve the corresponding technical effects, the clamping base and the wedge clamping assembly are used for clamping the cavity part, the contact area between the clamping device and the cavity part can be increased, deformation of the part due to uneven stress is avoided, and meanwhile, the wedge clamping assembly can be used for applying a downward clamping force to the cavity part, so that the problem that the part is deviated in the Z direction is solved.

The technical scheme is as follows:

The wedge clamping assembly comprises a movable end and a fixed end, the fixed end is fixed on the clamping base, and the movable end is connected with the fixed end in a sliding manner;

The connecting surface between the movable end and the fixed end is a wedge-shaped inclined surface, and the movable end slides upwards or downwards along the wedge-shaped inclined surface.

When the movable end slides downwards along the wedge-shaped inclined plane, the movable end is close to the cavity part and clamped on the side surface of the cavity part;

When the movable end slides upwards along the wedge-shaped inclined plane, the movable end releases the clamping of the cavity part and is far away from the cavity part.

A second threaded hole is formed in the connecting surface between the movable end and the fixed end, and a jackscrew is arranged in the second threaded hole;

The jackscrew rotates in the second threaded hole and drives the movable end to slide along the wedge-shaped inclined plane.

Further, a guide groove is formed in the bottom plate of the clamping base, and the fixed end is arranged in the guide groove;

Threaded holes are formed in the guide grooves, bolts are arranged in the threaded holes, and the bolts penetrate through the fixed ends and are fixed through nuts.

Further, the fixed end can slide along the guiding direction of the guiding groove, and the fixed end is fixed on the bottom plate after the fixed end slides in place.

Further, countersunk strip-shaped holes are formed in the fixing end along the direction pointing to the cavity part, the bolts can slide in the countersunk strip-shaped holes, and the nuts are tightly screwed and abutted against the step surfaces of the countersunk strip-shaped holes.

Further, the plurality of wedge block clamping assemblies are arranged on the clamping base, and the number of the wedge block clamping assemblies is matched with the length of the cavity part.

Further, the wedge clamping assemblies are uniformly and equidistantly arranged along the length direction of the cavity part.

Further, the height of the side clamping plate is smaller than the height of the machining surface of the cavity part.

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

1. According to the wedge clamping device, the clamping base and the wedge clamping assembly are used for clamping the cavity part, the contact area between the clamping device and the cavity part can be increased, deformation of the part due to uneven stress is avoided, and meanwhile, the wedge clamping assembly can be used for applying a downward clamping force to the cavity part, so that the problem that the part is deviated in the Z direction is solved.

2. According to the wedge clamping device, the installation position of the wedge clamping assembly can be adjusted through the guide groove, the wedge clamping assembly is fixed through the bolts and the nuts, the guide groove can be arranged to achieve high-precision repeated positioning, positioning errors are reduced, the problem that cavity parts are unevenly collected is avoided, and meanwhile clamping of various cavity parts with different sizes can be achieved.

Drawings

In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present utility model, the drawings that are needed in the examples will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and that other related drawings may be obtained from these drawings without inventive effort for a person skilled in the art. In the drawings:

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a wedge clamping assembly;

FIG. 3 is a cross-sectional view of a wedge clamping assembly;

FIG. 4 is a top view of a clamping base structure;

fig. 5 is a schematic view of a part of a wedge clamping assembly for installation and fixation.

In the drawings, the reference numerals and corresponding part names:

The clamping device comprises a 1-clamping base, a 2-wedge clamping assembly, a 3-cavity part, a 11-side clamping plate, a 12-bottom plate, a 13-guide groove, a 14-threaded hole, a 15-bolt, a 16-nut, a 21-movable end, a 22-fixed end, a 23-second threaded hole, a 24-jackscrew and a 25-countersunk strip-shaped hole.

Detailed Description

For the purpose of making apparent the objects, technical solutions and advantages of the present utility model, the present utility model will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present utility model and the descriptions thereof are for illustrating the present utility model only and are not to be construed as limiting the present utility model.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. It will be apparent, however, to one skilled in the art that these specific details need not be employed to practice the present utility model. In other instances, well-known structures, circuits, materials, or methods have not been described in detail in order not to obscure the utility model.

Reference throughout this specification to "one embodiment," "an embodiment," "one example," or "an example" means that a particular feature, structure, or characteristic described in connection with the embodiment or example is included in at least one embodiment of the present utility model. Thus, the appearances of the phrases "in one embodiment," "in an example," or "in an example" in various places throughout this specification are not necessarily all referring to the same embodiment or example. Furthermore, the particular features, structures, or characteristics may be combined in any suitable combination and/or sub-combination in one or more embodiments or examples. Moreover, those of ordinary skill in the art will appreciate that the illustrations provided herein are for illustrative purposes and that the illustrations are not necessarily drawn to scale. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

In the description of the present utility model, the terms "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "high", "low", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present utility model.

Examples:

as shown in fig. 1-5, the wedge clamping device of the utility model comprises a clamping base 1 and a wedge clamping assembly 2, wherein the wedge clamping assembly 2 is arranged in the clamping base 1, a side clamping plate 11 is arranged on one side of the clamping base 1, a clamping area for clamping a cavity part 3 is formed between the side clamping plate 11 and the wedge clamping assembly 2, the side clamping plate 11 is clamped on one side of the cavity part 3, the wedge clamping assembly 2 is clamped on the other side of the cavity part 3, and a bottom plate 12 of the clamping base 1 is abutted to the bottom surface of the cavity part 3. In this embodiment, when realizing the centre gripping of cavity part 3, side grip block 11, bottom plate 12 and wedge clamping assembly 2 realize the centre gripping effect to cavity part 3 jointly, and it can increase the area of contact between clamping device and the cavity part 3 effectively, improves the stability of centre gripping, avoids the cavity part to take place deformation because of the atress is uneven, utilizes wedge clamping assembly 2 can exert a decurrent clamping force to cavity part 3 simultaneously to solve the problem of part skew in the Z direction.

In this embodiment, the wedge clamping assembly 2 preferably includes a movable end 21 and a fixed end 22, the fixed end 22 is fixed on the clamping base 1, the movable end 21 is slidably connected to the fixed end 22, a connection surface between the movable end 21 and the fixed end 22 is a wedge-shaped inclined surface, and the movable end 21 slides up or down along the wedge-shaped inclined surface. Specifically, when the movable end 21 slides down along the wedge-shaped inclined plane, the movable end 21 approaches the cavity part 3 and clamps the side surface of the cavity part 3, and when the movable end 21 slides up along the wedge-shaped inclined plane, the movable end 21 releases the clamp of the cavity part 3 and moves away from the cavity part 3. In this embodiment, the driving structure of the movable end 21 is preferably as follows, a second threaded hole 23 is provided on the connection surface between the movable end 21 and the fixed end 22, and a jackscrew 24 is disposed in the second threaded hole 23, when the jackscrew 24 rotates in the second threaded hole 23, the movable end 21 can be driven to slide along the wedge-shaped inclined plane, and when the movable end 21 is effectively clamped on the surface of the cavity part 3, the jackscrew threaded hole structure can play a role of locking.

In this embodiment, the fixed end 22 can slide along the guiding direction of the guiding groove 13, and the fixed end 22 is fixed on the bottom plate 12 after the fixed end 22 slides in place. The clamping device can realize high-precision repeated positioning, reduce positioning errors and avoid the problem of uneven collection of cavity parts, can realize clamping of various cavity parts with different sizes, and particularly is characterized in that a threaded hole 14 is formed in the guide groove 13, a bolt 15 is arranged in the threaded hole 14, and the bolt 15 penetrates through the fixed end 22 and is fixed by a nut 16, so that the fixing effect after the fixed end 22 is positioned is realized. In order to adapt to the sliding effect of the fixed end 22 in the guide groove 13, a countersunk strip-shaped hole 25 is formed in the fixed end 22 along the direction pointing to the cavity part 3, the bolt 15 can slide in the countersunk strip-shaped hole 25, and the nut 16 is tightly screwed and abutted against the step surface of the countersunk strip-shaped hole 25.

In this embodiment, in order to ensure stability of the clamping effect on the cavity part 3, a plurality of wedge clamping assemblies 2 are disposed on the clamping base 1, and the number of the wedge clamping assemblies 2 is adapted to the length of the cavity part 3. Specifically, a plurality of wedge clamping assemblies 2 are followed the equidistant setting of length direction of cavity part 3 for the atress is more even on the cavity part 3, avoids appearing the uneven condition that takes place deformation of cavity part 3 atress.

In order to avoid that the height of the side clamping plate 11 is too high to affect normal machining of the parts, it is necessary in this embodiment to ensure that the height of the side clamping plate 11 is smaller than the height of the machined surface of the cavity part 3.

The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the utility model, and is not meant to limit the scope of the utility model, but to limit the utility model to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims

1. The utility model provides a wedge clamping device, its characterized in that, including clamping base (1) and wedge clamping assembly (2), wedge clamping assembly (2) set up in clamping base (1), a side of clamping base (1) is provided with side grip block (11), side grip block (11) with form the centre gripping region that is used for centre gripping cavity part (3) between wedge clamping assembly (2), just side grip block (11) centre gripping in a side of cavity part (3), wedge clamping assembly (2) centre gripping in another side of cavity part (3), bottom plate (12) butt of clamping base (1) in the bottom surface of cavity part (3).

2. Wedge clamping device according to claim 1, wherein the wedge clamping assembly (2) comprises a movable end (21) and a fixed end (22), the fixed end (22) being fixed to the clamping base (1), the movable end (21) being slidably connected to the fixed end (22);

The connecting surface between the movable end (21) and the fixed end (22) is a wedge-shaped inclined surface, and the movable end (21) slides upwards or downwards along the wedge-shaped inclined surface.

3. A wedge clamping device according to claim 2, wherein said movable end (21) is adjacent to said cavity part (3) and clamped to the side of said cavity part (3) when said movable end (21) slides down the wedge-shaped ramp;

When the movable end (21) slides upwards along the wedge-shaped inclined plane, the movable end (21) releases the clamping of the cavity part (3) and is far away from the cavity part (3).

4. Wedge clamping device according to claim 2, characterized in that a second threaded hole (23) is provided in the connection surface between the movable end (21) and the fixed end (22), and that a jackscrew (24) is arranged in the second threaded hole (23);

The jackscrew (24) rotates in the second threaded hole (23) and drives the movable end (21) to slide along the wedge-shaped inclined plane.

5. Wedge clamping device according to claim 2, characterized in that the bottom plate (12) of the clamping base (1) is provided with a guide groove (13), and the fixed end (22) is arranged in the guide groove (13);

Threaded holes (14) are formed in the guide grooves (13), bolts (15) are arranged in the threaded holes (14), and the bolts (15) penetrate through the fixed ends (22) and are fixed through nuts (16).

6. Wedge clamping device according to claim 5, wherein the fixed end (22) is slidable in the guiding direction of the guiding groove (13) and wherein the fixed end (22) is fixed to the base plate (12) after the fixed end (22) has been slid into place.

7. Wedge clamping device according to claim 5, wherein a countersunk strip-shaped hole (25) is provided in the fixed end (22) in a direction pointing to the cavity part (3), the bolt (15) is slidable in the countersunk strip-shaped hole (25), and the nut (16) is screwed against the stepped surface of the countersunk strip-shaped hole (25).

8. Wedge clamping device according to claim 1, characterized in that the clamping base (1) is provided with a number of wedge clamping assemblies (2), and the number of wedge clamping assemblies (2) is adapted to the length of the cavity part (3).

9. Wedge clamping device according to claim 8, wherein a number of wedge clamping assemblies (2) are arranged at equal intervals along the length of the cavity part (3).

10. Wedge clamping device according to claim 1, wherein the height of the side clamping plates (11) is smaller than the working surface height of the cavity part (3).