CN221716297U - Clamping fixtures for machining mechanical parts - Google Patents

Abstract

The utility model discloses a clamping tool for machining mechanical parts, which comprises a movable bottom supporting mechanism, wherein the bottom supporting mechanism is provided with a clamping groove; a clamping groove arranged at the upper end of the bottom supporting mechanism; a support mounted on the bottom support mechanism and located within the clamping groove, the support configured as a detachable structure; and the clamping mechanisms are arranged on the clamping grooves and respectively clamp the workpieces placed on the supporting parts from different directions. The clamping tool for machining the mechanical part is simple in structure, the supporting part for bearing the workpiece is configured to be a detachable structure, and the supporting part with a corresponding structure can be replaced according to the shape of the workpiece; the utility model clamps the workpiece from multiple directions, and the elastic component and the small clamping plate are independent, so that the utility model can adapt to workpieces with different sizes or different shapes, and improves the application range.

Description

Clamping fixtures for machining mechanical parts

Technical Field

The utility model relates to the technical field of mechanical clamps, in particular to a clamping tool for machining mechanical parts.

Background Art

Mechanical parts are the basic components of machinery and are inseparable individual parts that make up machinery and machines. During the mechanical manufacturing process, the device used to fix the processing object so that it occupies the correct position to accept construction or inspection is called a fixture. The fixture is a device used to quickly, conveniently and safely install the workpiece. When processing the workpiece, in order to make the workpiece meet the technical requirements such as overall accuracy, the workpiece must be positioned and clamped before processing.

After searching, the utility model patent with publication number CN211540965U discloses a clamping device for machining mechanical parts, including a workpiece, a base, a push clamping assembly, a first clamping block support seat, a second clamping block support seat, a fixed column support seat and a positioning clamping device; when machining a workpiece, the prior art can avoid replacing the clamp and improve the clamping efficiency. However, the prior art still has the following shortcomings: First, the prior art cannot adapt to mechanical parts of different shapes, and there is a problem of insufficient clamping when clamping irregularly shaped workpieces; second, the base structure of the prior art is single and cannot be changed, and cannot be switched according to the size or shape of the workpiece, and the scope of application is small.

Based on the above technical problems, technicians in this field urgently need to develop a clamping tool for machining mechanical parts with a simple structure, switchable bottom support, and the ability to clamp workpieces of different sizes or shapes.

Utility Model Content

The utility model aims to provide a clamping tool for machining mechanical parts which has a simple structure, a switchable bottom support and can clamp workpieces of different sizes or shapes.

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

The utility model discloses a clamping tool for machining mechanical parts, which comprises:

a movable bottom support mechanism; and

A clamping groove is arranged at the upper end of the bottom support mechanism, and one side of the clamping groove is open to form a semi-open structure;

A support portion mounted on the bottom support mechanism and located in the clamping groove, wherein the support portion is configured as a detachable structure and can be replaced to carry workpieces to be clamped of different shapes;

The clamping fixture also includes:

A plurality of clamping mechanisms are arranged on the clamping groove, and the plurality of clamping mechanisms can clamp the workpiece placed on the supporting portion from different directions respectively.

Furthermore, the bottom support mechanism comprises a horizontally arranged base, a fixing groove is provided at the center of the upper portion of the base, and threaded holes are provided on both sides of the fixing groove; and

A self-locking universal wheel is arranged at the bottom of the base.

Furthermore, the clamping groove is composed of three plates, and each of the plates is provided with a circular hole, and the circular hole is used to install the clamping mechanism.

Furthermore, the support portion includes a support plate, and the support plate can be installed in the fixing groove; and

Two fixing plates connected to the edges of both sides of the support plate, each of the two fixing plates being provided with a connecting hole adapted to the threaded hole;

A limiting groove is provided at the center of the plate body of the support plate. The limiting groove is used to place the workpiece to be clamped, and the shape of the limiting groove is a geometric shape.

Preferably, the shape of the limiting groove is one of polygonal, rectangular and circular.

Preferably, the limiting groove is rectangular, and a plurality of limiting plates are evenly connected laterally above the limiting groove.

Further, the clamping mechanism includes a cylinder supported on the upper end of the bottom supporting mechanism through a bracket; and

A push rod connected to the output end of the cylinder, the other end of which passes through the plate of the clamping groove from the outside and enters the clamping groove;

A clamping plate assembly is connected to the end of the push rod away from the cylinder.

Furthermore, the clamping plate assembly includes a large clamping plate vertically connected to the push rod; and

A plurality of small splints are connected to the large splint via a plurality of elastic components, and each of the small splints is correspondingly connected to one of the elastic components.

Furthermore, the elastic component includes two symmetrically arranged fixing blocks:

A damping telescopic rod- connected between the two fixing blocks-;

A spring - is sleeved on the damping telescopic rod -.

Preferably, a protective pad made of natural rubber is adhered to each of the small splints.

In the above technical solution, the clamping tool for machining mechanical parts provided by the utility model has the following beneficial effects:

The clamping fixture for machining mechanical parts of the utility model has a simple structure, and the support part for carrying the workpiece is configured as a detachable structure, so that the support part of the corresponding structure can be replaced according to the shape of the workpiece;

The utility model clamps the workpiece from multiple directions, and the elastic components and the small clamping plates are arranged independently, and can adapt to workpieces of different sizes or shapes, thereby improving the scope of application.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

FIG1 is an overall structural diagram of a clamping tool for machining mechanical parts provided by an embodiment of the utility model;

FIG2 is a schematic diagram of a clamping groove and a clamping mechanism of a clamping tool for machining mechanical parts provided by an embodiment of the utility model;

FIG3 is a structural diagram of a clamping tool support portion for machining mechanical parts provided by an embodiment of the utility model;

FIG4 is another structural diagram of a clamping tool support for machining mechanical parts provided by an embodiment of the utility model;

FIG5 is a schematic diagram of a clamping mechanism of a clamping tool for machining mechanical parts provided by an embodiment of the utility model;

FIG. 6 is a schematic diagram of an elastic component of a clamping fixture for machining mechanical parts provided in an embodiment of the present utility model.

Description of reference numerals:

1. Bottom support mechanism; 2. Clamping groove; 3. Support part; 4. Clamping mechanism;

101. base; 102. fixing groove; 103. self-locking universal wheel; 104. threaded hole;

301, support plate; 302, fixing plate; 303, limiting groove; 304, limiting plate;

401, cylinder; 402, push rod; 403, clamping plate assembly;

4031, large splint; 4032, elastic component; 4033, small splint; 4034, protective pad;

4032-1, fixed block; 4032-2, damping telescopic rod; 4032-3, spring.

DETAILED DESCRIPTION

In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

See Figures 1 to 6;

The utility model discloses a clamping tool for machining mechanical parts, which comprises:

A movable bottom support mechanism 1; and

A clamping groove 2 is arranged at the upper end of the bottom support mechanism 1, and one side of the clamping groove 2 is open to form a semi-open structure;

A support portion 3 mounted on the bottom support mechanism 1 and located in the clamping groove 2, wherein the support portion 3 is configured as a detachable structure and can be replaced to carry workpieces to be clamped of different shapes;

The clamping fixture also includes:

A plurality of clamping mechanisms 4 are disposed on the clamping groove 2 , and the plurality of clamping mechanisms 4 can clamp the workpiece placed on the supporting portion 3 from different directions.

As a further introduction to this embodiment, the bottom support mechanism 1 includes a horizontally arranged base 101, a fixing groove 102 is provided at the center of the upper portion of the base 101, and threaded holes 104 are provided on both sides of the fixing groove 102; and

The self-locking universal wheel 103 provided at the bottom of the base 101 is used for clamping mechanical parts. When the clamping tooling needs to be moved to switch workstations due to different workstations, the present embodiment adds a self-locking universal wheel 103 at the bottom to make it have good mobility and convenient fixation.

As a further introduction to this embodiment, the clamping groove 2 is composed of three plates, and each of the plates is provided with a circular hole, and the circular hole is used to install the clamping mechanism 4.

As a further introduction to this embodiment, the support portion 3 includes a support plate 301, and the support plate 301 can be installed in the fixing groove 102; and

Two fixing plates 302 connected to the two side edges of the support plate 301, both of the fixing plates 302 are provided with connection holes adapted to the threaded holes 104;

A limiting groove 303 is formed at the center of the support plate 301 . The limiting groove 303 is used to place the workpiece to be clamped, and the shape of the limiting groove 303 is a geometric shape.

As a preferred technical solution of this embodiment, the shape of the limiting groove 303 is one of polygonal, rectangular, and circular. The specific shape can be determined according to the shape of the workpiece to be clamped. It should be noted that the support part 3 provided in this embodiment requires multiple limiting grooves 303 with different shapes during actual manufacturing to meet the placement requirements of the workpiece.

As a preferred technical solution of this embodiment, the limit groove 303 is rectangular, and a plurality of limit plates 304 are evenly connected laterally above the limit groove 303. There are many types of mechanical parts with different shapes and structures, and there are multiple raised workpieces at the bottom. A support plate with a limit plate 304 can be used.

As a further introduction to this embodiment, the clamping mechanism 4 includes a cylinder 401 supported on the upper end of the bottom supporting mechanism 1 through a bracket; and

A push rod 402 connected to the output end of the cylinder 401, the other end of the push rod 402 passes through the plate of the clamping groove 2 from the outside and enters the clamping groove 2;

A clamping plate assembly 403 is connected to the end of the push rod 402 away from the cylinder 401 .

As a further introduction to this embodiment, the clamping plate assembly 403 includes a large clamping plate 4031 vertically connected to the push rod 402; and

The plurality of small clamping plates 4033 are connected to the large clamping plate 4031 via a plurality of elastic components 4032 , and each of the small clamping plates 4033 is correspondingly connected to one of the elastic components 4032 .

As a further introduction to this embodiment, the elastic component 4032 includes two symmetrically arranged fixing blocks 4032-1; and

A damping telescopic rod 4032-2 connected between the two fixing blocks 4032-1;

The spring 4032-3 is sleeved on the damping telescopic rod 4032-2. In actual use, the cylinder 401 drives the push rod 402 to drive the clamping plate assembly 403 to move, wherein when the small clamping plate 4033 contacts the workpiece, part of the small clamping plate 4033 fits the workpiece according to the shape of the workpiece, and due to the elastic effect of the elastic assembly 4032, it adapts to the shape of the workpiece, and when the damping telescopic column 4032-2 is compressed to the limit, it is in a clamping state.

As a preferred technical solution of this embodiment, a protective pad 4034 made of natural rubber is adhered to each of the small clamping plates 4033 to prevent the workpiece from being scratched when the workpiece is clamped.

In the above technical solution, the clamping tool for machining mechanical parts provided by the utility model has the following beneficial effects:

The clamping fixture for machining mechanical parts of the utility model has a simple structure, and the support part for carrying the workpiece is configured as a detachable structure, so that the support part of the corresponding structure can be replaced according to the shape of the workpiece;

The utility model clamps the workpiece from multiple directions, and the elastic components and the small clamping plates are arranged independently, and can adapt to workpieces of different sizes or shapes, thereby improving the scope of application.

The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims (10)

1. Clamping tool for machining mechanical parts, which is characterized in that the clamping tool comprises:

A movable bottom support mechanism (1); and

The clamping groove (2) is arranged at the upper end of the bottom supporting mechanism (1), and one surface of the clamping groove (2) is opened to form a semi-open structure;

A support (3) mounted on the bottom support mechanism (1) and located within the clamping groove (2), the support (3) being configured as a detachable structure, and the support (3) being replaceable to carry a different shape of workpiece to be clamped;

The clamping tool further comprises:

And a plurality of clamping mechanisms (4) arranged on the clamping groove (2), wherein the clamping mechanisms (4) can respectively clamp workpieces placed on the supporting part (3) from different directions.

2. The clamping fixture for machining mechanical parts according to claim 1, wherein the bottom supporting mechanism (1) comprises a base (101) which is horizontally arranged, a fixing groove (102) is formed in the center of the upper part of the base (101), and threaded holes (104) are formed in two sides of the fixing groove (102); and

And the self-locking universal wheel (103) is arranged at the bottom of the base (101).

3. The clamping fixture for machining mechanical parts according to claim 1, wherein the clamping groove (2) is composed of three plate bodies, and each plate body is provided with a round hole for installing the clamping mechanism (4).

4. The clamping tool for machining mechanical parts according to claim 2, wherein the support portion (3) comprises a support plate (301), the support plate (301) being mountable in the fixing groove (102); and

Two fixing plates (302) connected to the edges of the two sides of the supporting plate (301), wherein the two fixing plates (302) are provided with connecting holes matched with the threaded holes (104);

a limiting groove (303) is formed in the center of the plate body of the supporting plate (301), the limiting groove (303) is used for placing a workpiece to be clamped, and the shape of the limiting groove (303) is one of geometric shapes.

5. The clamping tool for machining a mechanical part according to claim 4, wherein the limiting groove (303) is one of polygonal, rectangular and circular.

6. The clamping tool for machining mechanical parts according to claim 4, wherein the limiting groove (303) is rectangular, and a plurality of limiting plates (304) are transversely and uniformly connected above the limiting groove (303).

7. The clamping tool for machining mechanical parts according to claim 1, wherein the clamping mechanism (4) comprises a cylinder (401) supported at the upper end of the bottom supporting mechanism (1) by a bracket; and

The pushing rod (402) is connected to the output end of the air cylinder (401), and the other end of the pushing rod (402) passes through the plate body of the clamping groove (2) from the outside and enters the clamping groove (2);

And a clamping plate assembly (403) connected to the end of the pushing rod (402) away from the air cylinder (401).

8. The clamping tool for machining mechanical parts according to claim 7, wherein the clamping plate assembly (403) comprises a large clamping plate (4031) vertically connected to the pushing rod (402); and

And a plurality of small clamping plates (4033) connected to the large clamping plate (4031) through a plurality of elastic components (4032), wherein each small clamping plate (4033) is correspondingly connected with one elastic component (4032).

9. The clamping tool for machining mechanical parts according to claim 8, wherein the elastic assembly (4032) comprises two symmetrically arranged fixed blocks (4032-1); and

A damping telescopic rod (4032-2) connected between the two fixed blocks (4032-1);

And a spring (4032-3) sleeved on the damping telescopic rod (4032-2).

10. The clamping fixture for machining mechanical parts according to claim 8, wherein a protective pad (4034) made of natural rubber is adhered to each small clamping plate (4033).