CN215786471U - Self-exhaust type air hammer device - Google Patents

Abstract

The utility model discloses a self-exhaust air hammer device, belonging to the technical field of air hammers and comprising a driving air cylinder component, the self-exhaust air hammer device also comprises a hammer body component which is assembled in the driving cylinder component in a limiting way, is used for driving the hammer body component to move by driving the cylinder component, comprises an air cavity component which is arranged inside the hammer body component, used for the shock absorption of the air hammer, and a hammer head component which is elastically assembled at one side of the hammer body component, and one end of the hammer head component is assembled and connected with the air cavity component, the pneumatic hammer is used for automatically exhausting air after the pneumatic hammer is abutted and impacted with a workpiece so as to enable the pneumatic hammer to absorb shock, and after the workpiece is hammered, the pneumatic hammer can automatically exhaust air through the air cavity assembly arranged in the hammer body assembly and the hammer head assembly assembled on one side of the hammer body assembly, the air chamber of the air chamber component is communicated through the hammer head component, so that the air hammer can exhaust air quickly and automatically, and the damping capacity of the air hammer is improved.

Description

Self-exhaust type air hammer device

Technical Field

The utility model belongs to the technical field of air hammers, and particularly relates to a self-exhaust air hammer device.

Background

The air hammer is a free forging machine, which is mainly composed of a frame, a transmission mechanism, a compression cylinder, a working cylinder, a compression piston, a falling part, an air distribution mechanism, an anvil block and the like, wherein a motor drives the compression piston of the compression cylinder to move up and down through a speed reducing mechanism and a crank, so as to generate compressed air, when an upper air passage and a lower air passage of the compression cylinder are communicated with the atmosphere, the compressed air does not enter the working cylinder, the motor does not work in idle running of a hammer head, an upper rotary valve and a lower rotary valve are operated through a handle or a pedal rod, so that the compressed air enters the upper part or the lower part of the working cylinder to push the working piston to move up and down, thereby driving the hammer head and the upper anvil block to ascend or descend, and completing various striking actions.

When the existing air hammer performs striking action, after the existing air hammer is abutted to a workpiece, the stroke of the hammer body is large, so that strong vibration can be generated, and the spring damping effect adopted by the common air hammer is general.

SUMMERY OF THE UTILITY MODEL

In view of the shortcomings of the prior art, an object of the present invention is to provide a self-exhausting air hammer device to solve the above problems in the prior art.

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

a self-venting air hammer apparatus comprising a drive cylinder assembly, the self-venting air hammer apparatus further comprising:

the hammer body assembly is assembled in the driving cylinder assembly in a limiting mode and used for driving the hammer body assembly to move through the driving cylinder assembly;

the air cavity assembly is arranged in the hammer body assembly and is used for damping the air hammer; and

and the hammer head component is elastically assembled on one side of the hammer body component, one end of the hammer head component is assembled and connected with the air cavity component, and the hammer head component is used for automatically exhausting air after the air hammer is abutted and impacted with the workpiece so as to damp the air hammer.

As a further aspect of the present invention, the driving cylinder assembly includes:

the pneumatic hammer comprises a cylinder main body, wherein one side of the cylinder main body is connected with a gas valve pipe for filling gas to drive the hammer body assembly to move; and

the movable port is connected with the hammer body component in a sliding mode and used for limiting the sliding direction of the hammer body component.

As a further aspect of the present invention, the hammer body assembly includes:

the first piston head is arranged in the cylinder main body in a sliding mode; and

the hammer body shell is fixedly connected with the first piston head, and the other end of the hammer body shell is provided with an assembling port for assembling the hammer head component.

As a further aspect of the present invention, the air cavity assembly comprises:

the air chamber is arranged in the hammer body shell, and the side edge of the air chamber is connected with a side air chamber;

the limiting groove is arranged at one end of the air chamber and is used for limiting the movement of the hammer head component; and

and the exhaust channel is arranged on one side of the limiting groove and used for exhausting air outwards through the exhaust channel when the hammer head component moves to one side of the side air chamber.

As a further aspect of the present invention, the hammer head assembly includes:

one end of the hammer head is arranged in the movable opening in a sliding mode, and a second piston head is arranged on one side close to the air chamber; and

and the elastic piece is elastically connected with the hammer head and the hammer body shell.

In summary, compared with the prior art, the embodiment of the utility model has the following beneficial effects:

according to the utility model, through the air cavity assembly arranged in the hammer body assembly and the hammer head assembly assembled on one side of the hammer body assembly, after a workpiece is hammered, the air chamber of the air cavity assembly is communicated through the hammer head assembly, so that the air hammer can quickly and automatically exhaust air, and the damping capacity of the air hammer is increased.

To more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Drawings

Fig. 1 is a schematic structural view of a self-venting air hammer apparatus provided in an embodiment of the present invention.

Fig. 2 is a schematic structural view of reference symbol a in the self-venting air hammer device provided in an embodiment of the present invention.

Fig. 3 is a schematic perspective view of an air chamber assembly of a self-venting air hammer device according to an embodiment of the present invention.

Reference numerals: the pneumatic hammer comprises a driving cylinder assembly, a cylinder body 101, a valve pipe 102, a movable port 103, a hammer body assembly 2, a first piston head 201, a hammer body shell 202, an assembly port 203, an air cavity assembly 3, an air chamber 301, an air chamber 302, a side air chamber 302, a limiting groove 303, an exhaust channel 304, a hammer head assembly 4, a hammer head 401, a second piston head 402 and an elastic part 403.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Specific implementations of the present invention are described in detail below with reference to specific embodiments.

As shown in fig. 1 to 3, a self-exhausting air hammer apparatus in one embodiment of the present invention includes a driving cylinder assembly 1, and further includes: the hammer body assembly 2 is assembled in the driving cylinder assembly 1 in a limiting mode and used for driving the hammer body assembly 2 to move through the driving cylinder assembly 1; the air cavity component 3 is arranged inside the hammer body component 2 and is used for damping the air hammer; and the hammer head component 4 is elastically assembled at one side of the hammer body component 2, one end of the hammer head component is assembled and connected with the air cavity component 3, and the hammer head component is used for automatically exhausting air after the air hammer is abutted and impacted with a workpiece so as to damp the air hammer.

In practical application, when the hammer body assembly 2 is driven by the driving cylinder assembly 1 to hammer a workpiece, firstly, the hammer head assembly 4 arranged on one side of the hammer body assembly 2 is preferentially contacted with the workpiece, and after the workpiece is hammered, the stroke of the hammer head assembly 4 moves to one side of the air cavity assembly 3, the air cavity assembly 3 and external air are conducted, so that air existing in the air cavity assembly 3 is rapidly discharged outwards, the hammer head assembly 4 can rapidly absorb shock after being hammered with the workpiece, and after the hammer head assembly 4 is elastically reset, the air can be refilled into the air cavity assembly 3, so that when the hammer head assembly 4 collides with the workpiece again, the hammer head assembly 4 guarantees enough rigidity in the process of compressing the air in the air cavity assembly 3, and the hammer head assembly 4 has good shock absorption performance while achieving the hammering purpose.

As shown in fig. 1, in a preferred embodiment of the present invention, the driving cylinder assembly 1 includes: the pneumatic hammer comprises a cylinder body 101, wherein one side of the cylinder body 101 is connected with a valve pipe 102 for filling gas to drive the hammer body assembly 2 to move; and the movable port 103 is connected with the hammer body component 2 in a sliding mode and used for limiting the sliding direction of the hammer body component 2.

In practical application, the hammer body assembly 2 in the cylinder body 101 can push the hammer body assembly 2 to move in the driving cylinder assembly 1 through the pressure action of the gas after the gas valve pipe 102 inputs the gas.

In one aspect of the present embodiment, the moving stroke of the hammer body assembly 2 is independent of the moving stroke of the hammer head assembly 4, and is not limited herein.

As shown in fig. 1, in a preferred embodiment of the present invention, the hammer body assembly 2 includes: a first piston head 201 slidably disposed in the cylinder body 101; and a hammer body shell 202 fixedly connected with the first piston head 201, and the other end of the hammer body shell is provided with an assembling opening 203 for assembling the hammer head component 4.

In one aspect of the present embodiment, the direction of movement of the ram assembly 4 is the same as the direction of movement of the ram assembly 2, preventing stress fractures during movement.

As shown in fig. 1, 2 and 3, in a preferred embodiment of the present embodiment, the air cavity assembly 3 includes: the air chamber 301 is arranged in the hammer body shell 202, and the side edge of the air chamber is connected with a side air chamber 302; the limiting groove 303 is arranged at one end of the air chamber 301 and used for limiting the movement of the hammer head assembly 4; and an exhaust passage 304 disposed at one side of the stopper groove 303, for exhausting air outwardly through the exhaust passage 304 when the hammer head assembly 4 moves to one side of the side air chamber 302.

In practical application, when the hammer head assembly 4 slides in the air chamber 301, the exhaust channel 304 is blocked by the side of the hammer head assembly 4 at the moment, and when the hammer head assembly 4 moves towards the side of the side air chamber 302, the gas in the air chamber 301 is in a compressed state, so that the sufficient rigidity of the hammer head assembly 4 in the process of abutting against a workpiece is ensured, and after the side of the hammer head assembly 4 moves to the limit position of the side of the exhaust channel 304, the side of the hammer head assembly 4 enters the side air chamber 302, and at the moment, the gas in the air chamber 301 rapidly passes through the side air chamber 302 and the gap of the side of the hammer head assembly 4 and then enters the exhaust channel 304 to be exhausted outwards, so that the hammer head assembly 4 can rapidly absorb shock after being hammered with the workpiece.

As shown in fig. 1 and 2, in a preferred embodiment of the present invention, the hammer head assembly 4 includes: one end of the hammer head 401 is arranged in the movable opening 103 in a sliding mode, and a second piston head 402 is arranged on one side close to the air chamber 301; and an elastic member 403 elastically connecting the hammer head 401 and the hammer body housing 202.

In practical application, when the second piston head 402 moves towards the air chamber 301, the air in the air chamber 301 can be squeezed out, when the hammer head 401 leaves the workpiece, the second piston head 402 returns to the side of the limiting groove 303 under the elastic force of the elastic member 403, and external air is sucked from the side of the exhaust channel 304 into the air chamber 301 through the negative pressure of the air during the movement, so that the air is always retained in the air chamber 301.

The embodiment of the utility model provides a self-exhaust air hammer device, and the air chamber of the air chamber component 3 can be communicated through the hammer head component 4 after a workpiece is hammered by the air chamber component 3 arranged in the hammer body component 2 and the hammer head component 4 assembled on one side of the hammer body component 2, so that the air hammer can quickly and automatically exhaust air, and the shock absorption capacity of the air hammer is improved.

In the description of the present invention, it is to be understood that the terms "upper", "side", "inner", and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the self-exhausting air hammer apparatus or components must have a particular orientation, be constructed in a particular orientation, and be operated, and that the terms "disposed", "mounted", "connected", and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected, unless otherwise expressly specified or limited; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be used for communicating the inside of two elements or interacting relation of two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention may be understood by those skilled in the art according to specific situations.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (5)

1. A self-venting air hammer apparatus comprising a drive cylinder assembly, wherein the self-venting air hammer apparatus further comprises:

the hammer body assembly is assembled in the driving cylinder assembly in a limiting mode and used for driving the hammer body assembly to move through the driving cylinder assembly;

the air cavity assembly is arranged in the hammer body assembly and is used for damping the air hammer; and

and the hammer head component is elastically assembled on one side of the hammer body component, one end of the hammer head component is assembled and connected with the air cavity component, and the hammer head component is used for automatically exhausting air after the air hammer is abutted and impacted with the workpiece so as to damp the air hammer.

2. A self-venting air hammer apparatus as set forth in claim 1, wherein the drive cylinder assembly comprises:

the pneumatic hammer comprises a cylinder main body, wherein one side of the cylinder main body is connected with a gas valve pipe for filling gas to drive the hammer body assembly to move; and

the movable port is connected with the hammer body component in a sliding mode and used for limiting the sliding direction of the hammer body component.

3. A self-venting air hammer device as claimed in claim 2, wherein the ram assembly comprises:

the first piston head is arranged in the cylinder main body in a sliding mode; and

the hammer body shell is fixedly connected with the first piston head, and the other end of the hammer body shell is provided with an assembling port for assembling the hammer head component.

4. A self-venting air hammer apparatus as set forth in claim 3 wherein the air cavity assembly comprises:

the air chamber is arranged in the hammer body shell, and the side edge of the air chamber is connected with a side air chamber;

the limiting groove is arranged at one end of the air chamber and is used for limiting the movement of the hammer head component; and

and the exhaust channel is arranged on one side of the limiting groove and used for exhausting air outwards through the exhaust channel when the hammer head component moves to one side of the side air chamber.

5. The self-venting air hammer apparatus of claim 4, wherein the hammer head assembly comprises:

one end of the hammer head is arranged in the movable opening in a sliding mode, and a second piston head is arranged on one side close to the air chamber; and

and the elastic piece is elastically connected with the hammer head and the hammer body shell.

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