CN219443497U

CN219443497U - Adjustable workpiece clamping device

Info

Publication number: CN219443497U
Application number: CN202320740055.0U
Authority: CN
Inventors: 李振东; 夏本荣; 谷从余
Original assignee: Maanshan Huanqiu Slewing Ring Co ltd
Current assignee: Maanshan Huanqiu Slewing Ring Co ltd
Priority date: 2023-04-06
Filing date: 2023-04-06
Publication date: 2023-08-01
Anticipated expiration: 2033-04-06

Abstract

The utility model discloses an adjustable workpiece clamping device which comprises a soft claw base and a soft claw, wherein the soft claw base is connected with the soft claw through an inner hexagon bolt, a soft claw base tooth is arranged on one end face of the soft claw base, a soft claw tooth matched with the soft claw base tooth is arranged on one end face of the soft claw, and a clamping block is further arranged on the soft claw. The utility model can enlarge the effective travel, is suitable for clamping large-size annular workpieces and small-size annular workpieces, and solves the problems that the conventional hydraulic claw travel is small and the clamping of the large-size annular workpieces cannot be satisfied.

Description

Adjustable workpiece clamping device

Technical Field

The utility model relates to a clamp, in particular to an adjustable workpiece clamping device.

Background

Lathe chucks are commonly used to clamp workpieces for machining, and sometimes, auxiliary clamping mechanisms are adopted, for example, a three-jaw chuck jaw grinding clamping structure is disclosed in China patent publication No. CN207255997U, a clamp of the patent is arranged on a jaw and is used for clamping a ring workpiece, and a clamping ring is used as a second chuck clamp to be matched with a clamping space formed between a first chuck clamp and the jaw so as to clamp the jaw in position.

The clamping force of the clamping jaw is guaranteed to be the same as that of the clamping jaw in normal working, so that the clamping surfaces of all the clamping jaws are kept parallel and stable, the problem that the clamping force of the clamping jaw is insufficient in long-term use is effectively solved, and the stability in subsequent grinding is guaranteed. But this patent also has the following drawbacks:

the clamping jaw of the chuck is driven by hydraulic power, and the clamp moves along with the clamping jaw, but the existing hydraulic clamping jaw has small stroke, can only clamp workpieces with small sizes, and cannot meet the clamping of large-size annular workpieces.

Disclosure of Invention

The utility model aims to provide an adjustable workpiece clamping device which can enlarge the effective stroke, is suitable for clamping large-size annular workpieces and small-size annular workpieces, and can solve the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a work piece clamping device with adjustable, includes soft claw base and soft claw, soft claw base and soft claw pass through hexagon socket head cap bolted connection, soft claw base tooth has been seted up to the terminal surface of soft claw base, soft claw terminal surface seted up with soft claw base tooth complex soft claw tooth, still be provided with the fixture block on the soft claw.

Preferably, a T-shaped groove with a T-shaped cross section is formed in the soft claw base, and a nut in an inner hexagon bolt for connecting the soft claw base and the soft claw is positioned in the T-shaped groove.

Preferably, the contact surface between the clamping block and the annular workpiece is an arc surface with the radius of 400 mm.

Preferably, the soft claw base is arranged on the hydraulic four-claw through an inner hexagon bolt.

Preferably, the soft claw base and the soft claw are provided with stepped bolt holes.

Preferably, the number of the soft claw bases and the soft claws is 4, the single soft claw base and the single soft claw are combined, and the four combinations are distributed on four hydraulic four-claw claws.

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

1. according to the adjustable workpiece clamping device, the clamping device is additionally arranged on the existing hydraulic claw, when the annular workpiece with a large size is clamped, due to the fact that the stroke of the existing hydraulic claw is insufficient, the soft claw base and the inner hexagon bolts connected with the soft claws are firstly loosened in a rotating mode, four soft claws are moved outwards on the soft claw base, the soft claws are moved outwards to conduct large stroke adjustment, after arc surfaces of clamping blocks of the four soft claws are matched and attached with an inner ring of the annular workpiece with the large size, a hydraulic pedal is stepped on to conduct small stroke adjustment of the hydraulic claw, the hydraulic claw drives the soft claw base and the soft claws to outwards move, the four clamping blocks outwards prop open to clamp the annular workpiece with the large size under the pushing of the hydraulic claw, and the problem that the stroke of the existing hydraulic claw is small, and clamping of the annular workpiece with the large size cannot be met is solved.

2. The adjustable workpiece clamping device can clamp small workpieces when the soft claw and the hydraulic claw are adjusted inwards, and the workpiece clamping device can be suitable for clamping the workpieces with different sizes and has a wide application range.

Drawings

FIG. 1 is a schematic view of an assembly of a soft claw base and a soft claw of the present utility model;

FIG. 2 is an isometric view of a soft claw mount of the present utility model;

FIG. 3 is a schematic illustration of an isometric view of a soft jaw of the present utility model;

FIG. 4 is a cross-sectional elevation view of the soft claw mount of the utility model;

FIG. 5 is a cross-sectional elevation view of the soft claw of the utility model

Fig. 6 is a schematic distribution diagram of the 4-group soft claw base and soft claw combination of the utility model.

In the figure: 1. a soft claw base; 101. soft claw base teeth; 201. soft claw teeth; 103. a T-shaped groove; 2. soft claws; 3. a clamping block; 301. an arc surface.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In order to solve the problem that the existing jaw clamp cannot meet the clamping of a large-size annular workpiece, referring to fig. 1-3, the embodiment provides the following scheme:

the utility model provides a work piece clamping device with adjustable, includes soft claw base 1 and soft claw 2, soft claw base 1 and soft claw 2 pass through hexagon socket head cap screw connection, offer the cross section for T type slot 103 on the soft claw base 1, soft claw 2 can be through the position of adjusting on soft claw base 1 after loosening hexagon socket head cap screw, realize pressing from both sides the regulation of dress stroke (size), nut in the hexagon socket head cap screw that soft claw base 1 and soft claw 2 connect is located T type slot 103, the nut is in T type slot 103, hexagon socket head cap screw passes from the bolt hole of soft claw 2 and is connected with the nut in the T type slot 103, soft claw base tooth 101 has been seted up to the one end of soft claw base 1, soft claw tooth 201 with soft claw base tooth 101 complex is seted up to the one end of soft claw 2, and soft claw base tooth 101 and soft claw tooth 201's tooth contained angle is 60, can keep soft claw base 1 and soft claw 2 stability of assembling through the cooperation of soft claw tooth 101 and soft claw tooth 201, can not produce relative slip.

The soft claw 2 is also provided with a clamping block 3. The contact surface of the clamping block 3 and the annular workpiece is set to be an arc surface 301 with the radius of 400mm, and the radius of the arc surface 301 is large, so that the contact surface can be well matched with the inner ring of the large annular workpiece.

Referring to fig. 4-5, stepped bolt holes are formed in the soft claw bases 1 and 2, 2 bolt holes are formed in each soft claw base 1, 2 bolt holes are formed in each soft claw 2, the soft claw bases 1 are mounted on the hydraulic four-claw claws through socket head cap bolts, and the socket head cap bolts penetrate through the bolt holes in the soft claw bases 1 to be assembled and connected with the hydraulic four-claw claws.

Referring to fig. 6, the number of soft claw bases 1 and 2 is 4, a single soft claw base 1 and a single soft claw 2 are combined, the four combinations are distributed on four hydraulic four-claw claws, and the four combinations cannot meet the requirement of clamping a large-size annular workpiece only by the stroke of the existing hydraulic claw.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An adjustable workpiece clamping device comprises a soft claw base (1) and a soft claw (2), and is characterized in that: soft claw base (1) and soft claw (2) pass through hexagon socket head cap screw connection, soft claw base tooth (101) have been seted up to one end face of soft claw base (1), soft claw (2) one end face seted up with soft claw base tooth (101) complex soft claw tooth (201), still be provided with fixture block (3) on soft claw (2).

2. An adjustable workpiece clamping device as defined in claim 1, wherein: a T-shaped groove (103) with a T-shaped cross section is formed in the soft claw base (1), and nuts in inner hexagon bolts connected with the soft claw base (1) and the soft claw (2) are located in the T-shaped groove (103).

3. An adjustable workpiece clamping device as defined in claim 1, wherein: the contact surface of the clamping block (3) and the annular workpiece is an arc surface (301) with the radius of 400 mm.

4. An adjustable workpiece clamping device as defined in claim 1, wherein: the soft claw base (1) is arranged on the hydraulic four-claw through an inner hexagon bolt.

5. An adjustable workpiece clamping device as defined in claim 1, wherein: step-type bolt holes are formed in the soft claw base (1) and the soft claw (2).

6. An adjustable workpiece clamping device as defined in claim 3, wherein: the soft claw bases (1) and the soft claws (2) are respectively provided with 4, the single soft claw bases (1) and the single soft claws (2) are combined, and the four combinations are distributed on four hydraulic four-claw claws.