Copper tube heading machine

Abstract

The application discloses a copper pipe head beating machine, which comprises a machine body, at least four hammering assemblies which are evenly distributed along the circumference and are even in number, and a power mechanism, wherein any two hammering assemblies located in the same radial direction together form a hammering assembly pair; the power mechanism is arranged between the machine body and the hammering assemblies and is suitable for driving each hammering assembly pair to beat the head of the copper pipe located in a beating area surrounded by all the hammering assemblies in turn. The copper pipe head beating machine can evenly beat the circumferential wall of the copper pipe head, thereby well ensuring the concentricity between the outer circumferential wall and the inner circumferential wall of the copper pipe head.

Description

TECHNICAL FIELD

[0001] The present application relates to a copper pipe head beating machine. BACKGROUND

[0002] Fine copper pipe is obtained by stretching rough copper pipe. Before stretching, the head of the copper pipe needs to be passed through a drawing die and fixed on the pincers of a drawing carriage. In order to facilitate the head of the copper pipe to pass through the drawing die, the head of the copper pipe needs to be reduced in diameter in advance. The head of the copper pipe is often hammered by a head beating machine to reduce the diameter of the head of the copper pipe. When the head of the copper pipe is hammered by the existing head beating machine, the head of the copper pipe may be unevenly hammered in all directions, which makes it difficult to guarantee the concentricity between the outer circumferential wall and the inner circumferential wall of the head of the copper pipe. SUMMARY

[0003] The technical problem to be solved by the present application is to overcome the defects of the prior art and provide a copper pipe head beating machine which can evenly hammer the circumferential wall of the head of the copper pipe and thus well guarantee the concentricity between the outer circumferential wall and the inner circumferential wall of the head of the copper pipe.

[0004] To solve the above technical problem, the technical scheme of the present application is as follows: a copper pipe head beating machine, comprising:

[0005] a machine body;

[0006] at least four hammering assemblies which are evenly distributed along the circumference and are in even number, and any two hammering assemblies located in the same radial direction together form a hammering assembly pair;

[0007] a power mechanism, which is arranged between the machine body and the hammering assemblies and is adapted to drive each hammering assembly pair to alternately hammer the head of the copper pipe located in a hammering region surrounded by all the hammering assemblies.

[0008] Further, a specific structure of the hammering assembly is provided, which comprises:

[0009] a hammering block, the side surface of the hammering block close to the copper pipe is a conical surface, all the conical surfaces together form a conical space adapted to surround the circumferential surface of the head of the copper pipe, and the large end surface of the conical space is an inlet end;

[0010] a hammering arm, the middle part of the hammering arm is hinged to the machine body, the head of the hammering arm is connected to the hammering block, and the power mechanism is arranged between the machine body and the hammering arm.

[0011] Further, a specific structure of the power mechanism is provided, which comprises:

[0012] a central shaft rotatably supported on the machine body;

[0013] a cam mounted on the central shaft, the cam being located in a space surrounded by the tail portions of all the hammer arms, and the cam having two protrusions arranged oppositely and in the same radial direction;

[0014] a rotating driving member connected to the central shaft to drive the central shaft and the cam to rotate; wherein,

[0015] the protrusions are adapted to push the tail portions of the hammer arms in contact with the protrusions to swing away from the central shaft to swing the corresponding hammer blocks towards the copper pipe to hammer the copper pipe during the rotation of the cam.

[0016] Further, in order to facilitate the reset of the hammer assembly, the copper pipe heading machine further comprises a resilient reset member corresponding to each hammer arm, the resilient reset member acting on the corresponding hammer arm and being adapted to drive the corresponding hammer arm to reset through the resilience of the resilient reset member when the corresponding hammer arm is not in contact with the protrusions.

[0017] Further, a specific structure of the resilient reset member is provided, the resilient reset member comprising a spring, one end of the spring being connected to the machine body and the other end being connected to the tail portion of the corresponding hammer arm; wherein,

[0018] the corresponding spring is compressed by the tail portion of the hammer arm during the swing of the tail portion of the hammer arm away from the central shaft.

[0019] Further, in order to facilitate the control of the start and stop of the rotating driving member, the power mechanism further comprises a foot switch connected to the rotating driving member and adapted to control the start and stop of the rotating driving member.

[0020] Further, in order to make the machine body at a height convenient for workers to operate, the copper pipe heading machine further comprises a support connected to the machine body to support the machine body.

[0021] Further, in order to prevent the copper pipe from being deflected, the copper pipe heading machine further comprises a centering guide mechanism adapted to guide the copper pipe to enter the central position of the hammering area.

[0022] Further, the machine body is provided with a cavity, the hammer assembly being located in the cavity, a near-copper-pipe-head end of the cavity being an open end, and the machine body being provided with a cover plate, the cover plate closing the open end; wherein,

[0023] the centering guide mechanism comprises a centering guide hole provided on the cover plate, the head of the copper pipe entering the hammering area through the centering guide hole.

[0024] Further, in order to facilitate the opening of the cover plate for maintenance and the installation of the cover plate, one end of the cover plate is hinged to the machine body and the other end is detachably connected to the machine body.

[0025] With the above technical scheme, the hammering assembly of the application is provided with an even number of assemblies and is distributed along a circumference. In the process of hammering the head of the copper pipe, the head of the copper pipe is placed against the hammering area formed by all the hammering assemblies by manpower. The two hammering assemblies opposite to each other, i.e. the two hammering assemblies in the same radial direction, together form a hammering assembly pair. The two hammering assemblies in the same hammering assembly pair hammer the peripheral wall of the copper pipe at the same time under the driving of the power mechanism. Each hammering assembly pair hammers the peripheral wall of the copper pipe in turn under the driving of the power mechanism. The copper pipe head hammering machine of the application can evenly hammer the peripheral wall of the head of the copper pipe, thereby effectively preventing the hole of the head of the copper pipe from being hammered solid, and can also well ensure the concentricity between the outer peripheral wall and the inner peripheral wall of the head of the copper pipe, and the effect of reducing the diameter is good. The power mechanism of the application adopts the structure of the cooperation of the central shaft, the cam and the rotary driving member. The two protrusions of the cam are oppositely arranged and are located in the same radial direction of the cam. In the process of rotation of the cam, the two protrusions sequentially push the tail of the hammering arm in each hammering assembly pair to swing away from the central shaft, so that the corresponding hammering block swings towards the copper pipe to hammer the copper pipe. The structure is simple, easy to implement, and stable and reliable. In the process of the copper pipe entering the hammering area and in the process of the copper pipe moving forward during hammering, the application also guides the movement of the copper pipe through the centering guide mechanism, thereby ensuring that the copper pipe is located at the central position of the hammering area and effectively preventing the copper pipe from being deflected during hammering, further ensuring the concentricity between the outer peripheral wall and the inner peripheral wall of the head of the copper pipe. The existence of the centering guide mechanism also greatly reduces the difficulty of operation of the workers. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 Fig. 1 is a structural schematic view of the copper pipe head hammering machine of the application;

[0027] Figure 2 Fig. 4 is a structural schematic view of the cam of the application;

[0028] Figure 3 Fig. 5 is an arrangement view of the hammering block of the application. DETAILED DESCRIPTION

[0029] In order to make the content of the application more easily understood, the application will be further described in detail below according to specific embodiments and in combination with the drawings.

[0030] As shown in Figure 1 , 2 , 3, a copper pipe head hammering machine comprises:

[0031] a machine body 1;

[0032] at least four hammering assemblies which are evenly distributed along a circumference and are in an even number, and any two hammering assemblies located in the same radial direction together form a hammering assembly pair;

[0033] A power mechanism is arranged between the machine body 1 and the hammering assemblies, and is adapted to drive each of the hammering assemblies to hammer the copper pipe head in turn in the hammering area surrounded by all the hammering assemblies.

[0034] In this embodiment, the hammering assemblies are four in number, but the number is not limited thereto.

[0035] Specifically, the hammering assemblies of the present application are even in number and are distributed along a circumference. In the process of hammering the head of the copper pipe, the head of the copper pipe is placed in the hammering area surrounded by all the hammering assemblies by manpower. Opposite two hammering assemblies, i.e. two hammering assemblies in the same radial direction, jointly form a hammering assembly pair. The two hammering assemblies in the same hammering assembly pair hammer the peripheral wall of the copper pipe simultaneously under the driving of the power mechanism. Each of the hammering assembly pairs hammers the peripheral wall of the copper pipe in turn under the driving of the power mechanism. The copper pipe head machine of the present application can evenly hammer the peripheral wall of the head of the copper pipe, thereby effectively preventing the hole of the head of the copper pipe from being hammered solid, and also effectively ensuring the concentricity between the outer peripheral wall and the inner peripheral wall of the head of the copper pipe, and achieving good effect of reducing the diameter.

[0036] As shown in Figure 1 , 3 , the hammering assembly comprises:

[0037] a hammering block 2, the side surface of the copper pipe of the hammering block 2 being a conical surface 21, all the conical surfaces 21 jointly forming a conical space adapted to surround the periphery of the head of the copper pipe, the large end surface of the conical space being an inlet end;

[0038] a hammering arm 3, the middle part of the hammering arm 3 being hinged to the machine body 1, the head being connected to the hammering block 2, and the power mechanism being arranged between the machine body 1 and the hammering arm 3.

[0039] In this embodiment, before hammering, the head of the copper pipe enters the conical space from the inlet end and abuts against the conical surface 21. During the process of hammering, the head of the copper pipe is gradually tapered and gradually advances under the pushing of the worker.

[0040] As shown in Figure 1 , 2 , the power mechanism comprises:

[0041] a central shaft 4 rotatably supported on the machine body 1;

[0042] a cam 5 mounted on the central shaft 4, the cam 5 being located in the space surrounded by the tails of all the hammering arms 3, and the cam 5 having two protrusions 51 oppositely arranged and located in the same radial direction thereof;

[0043] A rotating driving member 6 connected with the central shaft 4 to drive the central shaft 4 and the cam 5 to rotate; wherein,

[0044] The convex part 51 is adapted to push the tail of the hammering arm 3 in contact with it to swing away from the central shaft 4 to swing the corresponding hammering block 2 towards the copper pipe to hammer the copper pipe during the rotation of the cam 5.

[0045] In the embodiment, the rotating driving member 6 comprises a motor, and an output shaft of the motor is in driving connection with the central shaft 4.

[0046] Specifically, the power mechanism of the present application adopts the structure of the central shaft 4, the cam 5 and the rotating driving member 6 cooperating with each other, the two convex parts 51 of the cam 5 are oppositely arranged and located on the same radial direction of the cam 5, and the cam 5 pushes the tail of the hammering arm 3 in each of the hammering assemblies to swing away from the central shaft 4 to swing the corresponding hammering block 2 towards the copper pipe to hammer the copper pipe during the rotation of the cam 5, so that the structure is simple, easy to implement and stable and reliable.

[0047] As shown in Figure 1 In order to facilitate the reset of the hammering assembly, the copper pipe heading machine further comprises an elastic reset member corresponding to the hammering arm 3 one by one, the elastic reset member acts on the corresponding hammering arm 3 and is adapted to drive the corresponding hammering arm 3 to reset through the rebound of the corresponding hammering arm 3 when the corresponding hammering arm 3 is not in contact with the convex part 51.

[0048] As shown in Figure 1 The elastic reset member comprises a spring 7, one end of the spring 7 is connected with the machine body 1, and the other end is connected with the tail of the corresponding hammering arm 3; wherein,

[0049] The corresponding spring 7 is compressed by the tail of the hammering arm 3 during the swinging of the tail of the hammering arm 3 away from the central shaft 4.

[0050] As shown in Figure 1 In order to facilitate the control of the start and stop of the rotating driving member 6, the power mechanism further comprises a foot switch 8 connected with the rotating driving member 6 and adapted to control the start and stop of the rotating driving member 6.

[0051] As shown in Figure 1 In order to make the machine body 1 be located at a height convenient for workers to operate, the copper pipe heading machine further comprises a support 9 connected with the machine body 1 to support the machine body 1.

[0052] As shown in Figure 1 In order to prevent the copper pipe from being deflected, the copper pipe heading machine further comprises a centering guide mechanism adapted to guide the copper pipe to make the head of the copper pipe enter the central position of the hammering area.

[0053] As Figure 1 shown in the figure, the machine body 1 is provided with a cavity, the hammering assembly is located in the cavity, the cavity is open at the near copper pipe head end, the machine body 1 is provided with a cover plate 11, the cover plate 11 closes the open end; wherein,

[0054] The centering guide mechanism comprises a centering guide hole 10 arranged on the cover plate 11, the head of the copper pipe enters the hammering area through the centering guide hole 10.

[0055] Specifically, during the process of the copper pipe entering the hammering area and the process of the copper pipe moving forward during hammering, the present application also guides the movement of the copper pipe through the centering guide mechanism, thereby ensuring that the copper pipe is located in the center position of the hammering area and effectively preventing the copper pipe from being deflected during hammering, further ensuring the concentricity between the outer peripheral wall and the inner peripheral wall of the copper pipe head, and the existence of the centering guide mechanism also greatly reduces the operation difficulty of workers.

[0056] In the embodiment, in order to facilitate the opening of the cover plate 11 for maintenance and the installation of the cover plate 11, one end of the cover plate 11 is hinged to the machine body 1, and the other end is detachably connected to the machine body 1.

[0057] In the embodiment, the other end of the cover plate 11 and the corresponding position of the machine body 1 are respectively provided with plug-in holes, the head of the bolt passes through the plug-in holes on the machine body 1 and the cover plate 11 at the same time, and then a nut is tightened, so as to realize the connection between the other end of the cover plate 11 and the machine body 1.

[0058] The above specific embodiments further specifically describe the technical problems, technical solutions and beneficial effects solved by the present application, and it should be understood that the above description is only for specific embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A copper tube heading machine, characterized in that, It includes: Body (1); At least four hammering components are evenly distributed along the circumference and in even numbers, and any two hammering components located on the same radial direction together form a hammering component pair; The power mechanism is located between the body (1) and the hammering assembly, and is adapted to drive each of the hammering assemblies to hammer the head of the copper tube in turn within the hammering area enclosed by all the hammering assemblies. The hammering assembly includes: Hammering block (2), the surface of the hammering block (2) near the copper tube is a conical surface (21), all the conical surfaces (21) together form a conical space suitable for surrounding the circumference of the head of the copper tube, the large end face of the conical space is the inlet end; Hammering arm (3), the middle part of the hammering arm (3) is hinged to the machine body (1), the head is connected to the hammering block (2), and the power mechanism is located between the machine body (1) and the hammering arm (3). The power mechanism includes: A central shaft (4) is rotatably supported on the body (1); A cam (5) is mounted on the central shaft (4), the cam (5) is located in the space enclosed by the tails of all the hammer arms (3), and the cam (5) has two protrusions (51) that are arranged opposite to each other and located in the same radial direction. A rotary drive (6) connected to the central shaft (4) to drive the central shaft (4) and the cam (5) to rotate; wherein, The protrusion (51) is adapted to push the tail of the hammer arm (3) in contact with it to swing away from the central axis (4) as it rotates with the cam (5) so that the corresponding hammer block (2) swings toward the copper tube to hammer the copper tube. It also includes an elastic reset member corresponding to each of the hammer arms (3). The elastic reset member acts on the corresponding hammer arm (3) and is adapted to reset the corresponding hammer arm (3) by its rebound when the corresponding hammer arm (3) is not in contact with the protrusion (51). It also includes a centering guide mechanism adapted to guide the copper tube so that the head of the copper tube enters the center of the hammering area.

2. The copper tube heading machine according to claim 1, characterized in that, The elastic reset component includes a spring (7), one end of which is connected to the body (1), and the other end is connected to the tail of the corresponding hammer arm (3); wherein, During the swing of the tail of the hammer arm (3) away from the central axis (4), the corresponding spring (7) is compressed by the tail of the hammer arm (3).

3. The copper tube heading machine according to claim 1, characterized in that, The power mechanism also includes a foot switch (8) connected to the rotary drive (6) and adapted to control the start and stop of the rotary drive (6).

4. The copper tube heading machine according to claim 1, characterized in that, It also includes a bracket (9) which is connected to the body (1) to support the body (1).

5. The copper tube heading machine according to claim 1, characterized in that, The machine body (1) has a cavity, the hammering assembly is located in the cavity, the end of the cavity near the head of the copper tube is an open end, and a cover plate (11) is installed on the machine body (1) to close the open end; wherein, The centering guide mechanism includes a centering guide hole (10) provided on the cover plate (11), through which the head of the copper tube enters the hammering area.

6. The copper tube heading machine according to claim 5, characterized in that, One end of the cover plate (11) is hinged to the body (1), and the other end is detachably connected to the body (1).

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