CN218397023U

CN218397023U - Clamping device

Info

Publication number: CN218397023U
Application number: CN202222334603.8U
Authority: CN
Inventors: 单红丽; 杜一君
Original assignee: Himile Mechanical Manufacturing Co Ltd
Current assignee: Himile Mechanical Manufacturing Co Ltd
Priority date: 2022-09-02
Filing date: 2022-09-02
Publication date: 2023-01-31
Anticipated expiration: 2032-09-02

Abstract

The utility model discloses a clamping device, which belongs to the field of machining auxiliary devices and comprises at least two clamping components arranged at intervals in the circumferential direction, wherein each clamping component comprises a base, a slidable clamping block is arranged on each base, a step structure is arranged on each clamping block, and the step surface of each step structure is a first bearing surface; the base is also provided with a liftable supporting top, and the top end surface of the supporting top is a second bearing surface; the utility model has the functions of clamping and supporting, and reduces the number of tool accessories; the horizontal position of the workpiece can be adjusted to meet the processing requirement; has the advantages of simple structure, convenient operation and low cost.

Description

Clamping device

Technical Field

The utility model relates to a clamping device belongs to the machining auxiliary device field.

Background

In the field of machining, when a circular ring or disc workpiece is machined at a machining center, a certain numerical value needs to be kept between the rotation center of the workpiece and the rotation center of a workbench so as to meet the requirements on the position degree and the like of machining features in a drawing. In the prior art, a common clamping jaw is usually fixed on a workbench, and the rotation center of a circular or disc workpiece is adjusted by adjusting the position of the clamping jaw. The existing common clamping jaw has the following defects in the process of clamping circular ring or disc workpieces: firstly, clamping force can be applied only in the radial direction, the workpiece cannot be supported, a bearing device needs to be additionally placed, the number of workpiece tools and accessories is large, and the processing cost is increased; secondly, when the workpiece is clamped, the horizontal position of the workpiece is difficult to adjust, and the requirement on the horizontal machining precision of the workpiece cannot be met.

In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is to provide a clamping device, which has the functions of clamping and supporting, and reduces the number of tool accessories; the horizontal position of the workpiece can be adjusted to meet the processing requirement; has the advantages of simple structure, convenient operation and low cost.

For solving the technical problem, the utility model discloses a following technical scheme: a clamping device comprises at least two clamping assemblies arranged at intervals in the circumferential direction, each clamping assembly comprises a base, a slidable clamping block is arranged on each base, a step structure is arranged on each clamping block, and the step surface of each step structure is a first bearing surface;

the base is further provided with a liftable supporting top, and the top end face of the supporting top is a second bearing face.

Furthermore, a sliding groove is formed in the base, a sliding block is arranged on the clamping block, the sliding block is in sliding fit with the sliding groove, and the sliding groove and the sliding block are T-shaped.

Furthermore, the clamping block is arranged at one end of the adjusting bolt through a limiting structure, the adjusting bolt is rotatably arranged in a through hole in the clamping block, and the through hole extends along the moving direction of the clamping block;

the base is provided with an adjusting baffle plate which is arranged at one end of the chute; the other end of the adjusting bolt is in threaded connection with the adjusting baffle.

Furthermore, limit structure includes annular and limiting plate, the limiting plate is fixed in on the clamp block, the annular is seted up on adjusting bolt, the limiting plate imbeds in the annular.

Further, the supporting top is arranged at the side part of the clamping block.

Further, a fixing block is installed on the base, and the supporting top is locked on the fixing block through a locking nut.

Furthermore, the bottom of base is connected with T type piece, T type piece and the T type groove sliding fit on the lathe workstation.

The utility model adopts the above technical scheme after, compare with prior art, have following advantage:

the utility model discloses both can press from both sides tight work piece, can the bearing work piece again, reduce the frock accessory.

The utility model discloses can adjust the horizontal position of work piece, satisfy the processing requirement.

The utility model discloses simple structure, convenient operation, it is with low costs.

The present invention will be described in detail with reference to the accompanying drawings and examples.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic structural view of the clamping assembly;

FIG. 3 is a schematic view of an adjusting bolt;

fig. 4 is a sectional view of the present invention;

fig. 5 is a schematic view of the mounting of the supporting roof.

In the figure, the position of the upper end of the main shaft,

the method comprises the following steps of 1-base, 2-clamping block, 3-supporting top, 4-fixing block, 5-adjusting bolt, 6-adjusting baffle, 7-locking nut, 8-T-shaped block, 9-ring groove, 10-limiting plate, 11-first bearing surface, 12-second bearing surface and 13-workpiece.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings.

As shown in fig. 1-5 jointly, the utility model provides a clamping device, including the clamping unit that two at least circumference intervals set up, clamping unit includes base 1, be equipped with slidable clamp piece 2 on the base 1, be equipped with the stair structure on the clamp piece 2, the step face of stair structure is first bearing surface 11.

The base 1 is further provided with a liftable supporting top 3, the supporting top 3 is arranged on the side portion of the clamping block 2, the supporting top 3 is of a cylindrical structure, and the top end face of the supporting top 3 is a second bearing surface 12.

The base 1 is provided with a sliding groove, the clamping block 2 is provided with a sliding block in sliding fit with the sliding groove, the sliding groove and the sliding block are T-shaped, and the clamping block 2 is arranged on the base 1 in a sliding mode through the sliding groove and the sliding block.

The base 1 is connected with an adjusting baffle 6 through bolts, and the adjusting baffle 6 is arranged at one end of the sliding groove.

The clamping block 2 is arranged at one end of an adjusting bolt 5 through a limiting structure, and the other end of the adjusting bolt 5 is in threaded connection with an adjusting baffle 6; the adjusting bolt 5 can be rotatably arranged in the through hole on the clamping block 2, and the rotating adjusting bolt 5 can drive the clamping block 2 to move along the sliding groove on the base 1.

Said through hole extending in the direction of movement of the clamping block 2.

The limiting structure comprises an annular groove 9 and a limiting plate 10, the limiting plate 10 is fixed on the clamping block 2, the annular groove 9 is formed in the adjusting bolt 5, and the limiting plate 10 is embedded into the annular groove 9. The annular 9 is established in the one side that presss from both sides tight piece 2 and be close to adjustment baffle 6, the medial surface that adjustment baffle 6 was kept away from to annular 9 is parallel and level mutually with pressing from both sides tight piece 2 side.

The base 1 is provided with a fixing block 4 through a bolt, the supporting roof 3 is in threaded connection with the fixing block 4, the supporting roof 3 is locked on the fixing block 4 through a locking nut 7, and the locking nut 4 has the locking and anti-loosening effect.

The bottom of base 1 has T type piece 8 through bolted connection, T type piece 8 and the T type groove sliding fit on the lathe workstation make clamping device can move along the T type groove on it on the lathe workstation.

The utility model discloses a theory of operation:

as shown in figure 1, the utility model can be placed on a machine tool workbench, can be moved randomly along a T-shaped groove of the machine tool workbench, and is fixed with the workbench by bolts and T-shaped blocks after the distance is adjusted according to the size of a workpiece; the adjusting bolt 5 is rotated by tools such as a spanner, the clamping block 2 is driven to move in the sliding groove of the base 1, the workpiece is clamped and loosened, and the operation is flexible and light.

When clamping the workpiece 13, the workpiece 13 is placed on the first bearing surface 11 of the clamping block for clamping. According to different clamping surfaces of workpieces, the following two conditions are divided:

1. the clamping surface of the workpiece 13 is a machined surface: only the adjusting bolt 5 is rotated to clamp, and the contact ratio of the center of the workpiece 13 and the center of the workbench can be finely adjusted, in this case, the first bearing surface 11 on the clamping block 2 bears the workpiece, and the supporting top 3 can be downwardly adjusted to the position not contacting the workpiece 13.

2. The clamping surface of the workpiece 13 is a blank surface: when the horizontal height of the workpiece 13 needs to be adjusted, the supporting top 3 is rotated to meet the requirement of adjusting the parallelism of the workpiece 13 and the workbench, at this time, the horizontal plane of the workpiece is separated from the first bearing surface 11 on the clamping block 2, the second bearing surface 12 on the supporting top 3 bears the workpiece, and the clamping block 2 can clamp the workpiece.

The foregoing is illustrative of the best mode of the invention, and details not described herein are within the common general knowledge of a person of ordinary skill in the art. The protection scope of the present invention is subject to the content of the claims, and any equivalent transformation based on the technical teaching of the present invention is also within the protection scope of the present invention.

Claims

1. A clamping device comprises at least two clamping components arranged at intervals in the circumferential direction, and is characterized in that: the clamping assembly comprises a base (1), a slidable clamping block (2) is arranged on the base (1), a step structure is arranged on the clamping block (2), and the step surface of the step structure is a first bearing surface (11);

the base (1) is further provided with a liftable supporting top (3), and the top end face of the supporting top (3) is a second bearing face (12).

2. A clamping device as claimed in claim 1, wherein: the base (1) is provided with a sliding groove, the clamping block (2) is provided with a sliding block, the sliding block is in sliding fit with the sliding groove, and the sliding groove and the sliding block are T-shaped.

3. A clamping device as claimed in claim 2, wherein: the clamping block (2) is arranged at one end of an adjusting bolt (5) through a limiting structure, the adjusting bolt (5) is rotatably arranged in a through hole in the clamping block (2), and the through hole extends along the moving direction of the clamping block (2);

an adjusting baffle (6) is arranged on the base (1), and the adjusting baffle (6) is arranged at one end of the sliding groove; the other end of the adjusting bolt (5) is in threaded connection with the adjusting baffle (6).

4. A clamping device as claimed in claim 3, wherein: the limiting structure comprises an annular groove (9) and a limiting plate (10), the limiting plate (10) is fixed on the clamping block (2), the annular groove (9) is formed in the adjusting bolt (5), and the limiting plate (10) is embedded into the annular groove (9).

5. A clamping device as claimed in claim 1, wherein: the supporting top (3) is arranged on the side part of the clamping block (2).

6. A clamping device as claimed in claim 1, wherein: the supporting device is characterized in that a fixed block (4) is installed on the base (1), and the supporting top (3) is locked on the fixed block (4) through a locking nut (7).

7. A clamping device as claimed in claim 1, wherein: the bottom of base (1) is connected with T type piece (8), T type piece (8) and the T type groove sliding fit on the lathe workstation.