CN217550969U

CN217550969U - Necking machine

Info

Publication number: CN217550969U
Application number: CN202220971711.3U
Authority: CN
Inventors: 王成; 汤成堃; 魏昊; 范良君; 郑文波; 王思成
Original assignee: Daye Special Steel Co Ltd
Current assignee: Daye Special Steel Co Ltd
Priority date: 2022-04-25
Filing date: 2022-04-25
Publication date: 2022-10-11
Anticipated expiration: 2032-04-25

Abstract

The utility model provides a necking machine, necking machine are through penetrating hollow billet and throat with the plug, include: the guide mechanism is connected with an execution stop block, and the execution stop block can move on the guide mechanism; a piston rod of the first hydraulic cylinder can push the execution stop block to move on the guide mechanism; the gas-liquid buffer comprises a buffer piston end and a fixed end, the fixed end of the gas-liquid buffer is connected with a fixed baffle, and the moving direction of the buffer piston end of the gas-liquid buffer is parallel to the moving direction of the execution stop block; wherein, plug and hollow billet are located between gas-liquid buffer and the execution dog, and first pneumatic cylinder is used for promoting plug and hollow billet, and its impact force that is used for when buffering the plug and wearing the stick of gas-liquid buffer, the utility model discloses impact force when using can reduce the plug and wearing the stick has prolonged the life of throat machine to the influence of throat machine pneumatic cylinder.

Description

Necking machine

Technical Field

The utility model relates to a tubular product processing field, in particular to throat machine.

Background

The tube push bench generally has core rods with four specifications of 105, 145, 180 and 220, the core rods are required to penetrate into a capillary and be contracted before tube push, the capillary is transversely moved by the capillary and is placed on a capillary pre-penetration roller way, two groups of pinch roll devices tighten the core rods to drive the core rods to penetrate into the capillary, and the contraction is carried out after the capillary and the core rods collide with a baffle plate of the contraction machine. The necking machine baffle adopts two pneumatic cylinders back to cushion and fix a position, because every specification plug length, quality are all different, and baffle buffer power realizes through adjustment hydraulic system pressure, hardly adjusts suitable pressure during actual adjustment, and necking machine baffle buffering effect is very unsatisfactory. The problems of damage of a baffle plate base of the necking machine, damage of a hydraulic cylinder, breakage of a guide rod and the like are often caused, and a large amount of fault downtime is caused while spare parts are wasted.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a necking machine has promoted buffer's life.

In order to achieve the above object, the present invention provides the following technical solutions: a necking machine which penetrates and necks a mandrel into a hollow billet, comprising: the guide mechanism is connected with an execution stop block, and the execution stop block can move on the guide mechanism; the piston rod of the first hydraulic cylinder can push the execution stop block to move on the guide mechanism; the gas-liquid buffer comprises a buffering piston end and a fixed end, the fixed end of the gas-liquid buffer is connected with a fixed baffle, and the moving direction of the buffering piston end of the gas-liquid buffer is parallel to that of the execution stop block; the mandrel and the capillary are positioned between the gas-liquid buffer and the execution stop block, the first hydraulic cylinder is used for pushing the mandrel and the capillary, and the gas-liquid buffer is used for buffering impact force generated when the mandrel penetrates through the mandrel.

Furthermore, the first hydraulic cylinder is connected with the base, the guide mechanism comprises two guide rods, the two guide rods are connected with the base through fixing parts, the axes of the two guide rods are parallel to each other, and the two guide rods are respectively arranged on two sides of the execution stop block.

Furthermore, the hydraulic device also comprises a second hydraulic cylinder, wherein the second hydraulic cylinder is arranged on the base through a mounting frame, the direction of the output end of the second hydraulic cylinder is opposite to that of the output end of the first hydraulic cylinder, and the second hydraulic cylinder can push the execution stop dog.

Furthermore, the second hydraulic cylinder is located above the gas-liquid buffer, a pushing piece is arranged at the upper end of the execution stop block, the output end of the second hydraulic cylinder can push the pushing piece, and the pushing piece can drive the execution stop block to move when moving.

Furthermore, the pushing part comprises a pushing plate and two side plates, the output end of the second hydraulic cylinder can push the pushing plate, the pushing plate and the two side plates are vertically arranged, the lower ends of the pushing plate and the two side plates are connected with the execution stop block, the two side plates are connected with one side face, close to the second hydraulic cylinder, of the pushing plate, and when the output end of the second hydraulic cylinder pushes the pushing plate, the output end of the second hydraulic cylinder is located between the two side plates.

Furthermore, a taper hole is formed in the fixed baffle plate, and the guide rod extends into the taper hole and is connected with the fixed baffle plate.

Further, the diameter of the guide rod is not less than 140mm.

Further, still include displacement sensor, displacement sensor pass through the bolt with first pneumatic cylinder is connected, be equipped with the mounting hole on the first pneumatic cylinder, displacement sensor's response pole stretch into to in the mounting hole, displacement sensor can detect the extension of the output of pneumatic cylinder.

Further, the diameter of the mounting hole is 20mm.

The analysis can know, the utility model discloses a throat machine, the utility model discloses impact force when can reducing the plug and wear the stick when using is to the influence of throat machine pneumatic cylinder, has prolonged the life of throat machine.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. Wherein:

fig. 1 is a schematic view of a prior art necking machine.

Fig. 2 is a schematic structural view of a necking machine according to an embodiment of the present invention.

Fig. 3 is a schematic top view of a structure of a necking machine according to an embodiment of the present invention.

Fig. 4 is a schematic structural view of a guide bar of a necking machine according to an embodiment of the present invention.

Fig. 5 is a schematic structural diagram of an execution stop block of the necking machine according to an embodiment of the present invention.

Description of reference numerals: 1-a first hydraulic cylinder; 2-a guide rod; 3, executing a stop block; 4-gas-liquid buffer; 5-a second hydraulic cylinder; 6-a base; 7-fixing a baffle plate; 8-a third hydraulic cylinder; 9-original guide rod; 10-original baffle; 11. a U-shaped bayonet.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. Each example is provided by way of explanation of the invention, and not limitation of the invention. In fact, it will be apparent to those skilled in the art that modifications and variations can be made in the present invention without departing from the scope or spirit of the invention. For instance, features illustrated or described as part of one embodiment, can be used with another embodiment to yield a still further embodiment. It is therefore intended that the present invention encompass such modifications and variations as fall within the scope of the appended claims and equivalents thereof.

In the description of the present invention, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description of the present invention and do not require that the present invention must be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. The terms "connected", "connected" and "disposed" used in the present invention should be understood in a broad sense, and may be, for example, either fixedly connected or detachably connected; can be directly connected or indirectly connected through intermediate components; the connection may be a wired electrical connection, a wireless electrical connection, or a wireless communication signal connection, and a person skilled in the art can understand the specific meaning of the above terms according to specific situations.

One or more examples of the present invention are illustrated in the accompanying drawings. The detailed description uses numerical and letter designations to refer to features in the drawings. Like or similar designations in the drawings and description have been used to refer to like or similar parts of the invention. As used herein, the terms "first," "second," "third," and "fourth" may be used interchangeably to distinguish one component from another and are not intended to denote the position or importance of the individual components.

As shown in fig. 2 to 5, according to an embodiment of the present invention, there is provided a necking machine which penetrates a mandrel into a hollow billet and necks down, including: the guide mechanism is connected with an execution stop block 3 (the execution stop block 3 is called as a baffle of the necking machine in the prior art), and the execution stop block 3 can move on the guide mechanism; the piston rod of the first hydraulic cylinder 1 can push the execution stop block 3 to move on the guide mechanism; the gas-liquid buffer 4 is arranged below the small hydraulic cylinder, the gas-liquid buffer 4 replaces the previous 2 third hydraulic cylinders 8 to bear the buffer force of the impact of the penetration of the mandril (as shown in figure 1, one part of the buffer force of the impact of the penetration of the mandril of the traditional necking machine acts on the original baffle 10, and the other part acts on the third hydraulic cylinder 8, so that the original baffle 10 and the third hydraulic cylinder 8 are easily damaged), the first hydraulic cylinder 1 does not bear the impact force during the impact of the mandril, the buffer effect can be improved, the service cycle of spare parts is prolonged, and the cost of the spare parts is reduced. The gas-liquid buffer 4 comprises a buffer piston end and a fixed end, the fixed end of the gas-liquid buffer 4 is connected with a fixed baffle 7, and the moving direction of the buffer piston end of the gas-liquid buffer 4 is parallel to the moving direction of the execution stop block 3; the necking machine is characterized in that a mandrel and a capillary are located between a gas-liquid buffer 4 and an execution stop block 3, a first hydraulic cylinder 1 is used for pushing the mandrel and the capillary, the gas-liquid buffer 4 is used for buffering the impact force when the mandrel penetrates through a rod, the necking machine adopts two large hydraulic cylinders (a first hydraulic cylinder 1 and a second hydraulic cylinder 5), a small hydraulic cylinder (the second hydraulic cylinder 5) pushes the execution stop block 3 to return to a zero position, the large hydraulic cylinder (the first hydraulic cylinder 1) pushes the mandrel and the capillary to a necking position, meanwhile, the large hydraulic cylinder (the first hydraulic cylinder 1) pushes the mandrel and the capillary to a discharging position, a displacement sensor arranged in the large hydraulic cylinder (the first hydraulic cylinder 1) is provided with a built-in displacement sensor, the displacement sensor and a magnetic ring are arranged in a hydraulic cylinder rod, the position of the first hydraulic cylinder 1 is detected through the magnetic ring, an electric signal is fed back when the first hydraulic cylinder 1 moves to a required position, and the first hydraulic cylinder 1 stops moving. The adjustable any position of the necking position is realized. Because adopt gas-liquid buffer 4 to cushion, impact when first pneumatic cylinder 1 and second pneumatic cylinder 5 do not receive the plug and wear in advance, life greatly increased.

Preferably, the hydraulic cylinder device further comprises a base 6, the first hydraulic cylinder 1 is connected with the base 6, the guide mechanism comprises two guide rods 2, the two guide rods 2 are connected with the base 6 through fixing pieces, the axes of the two guide rods 2 are parallel to each other, the two guide rods 2 are respectively arranged on two sides of the execution stop block 3, the execution stop block 3 is provided with a U-shaped bayonet 11, the execution stop block 3 is clamped on the two guide rods 2 through the U-shaped bayonet 11, and the execution stop block 3 moves on the guide rods 2 under the pushing of the first hydraulic cylinder 1.

Preferably, still include second pneumatic cylinder 5, second pneumatic cylinder 5 is located on base 6 through the mounting bracket, and the output of second pneumatic cylinder 5 is relative with the output orientation of first pneumatic cylinder 1, and second pneumatic cylinder 5 can promote and carry out dog 3.

Preferably, second pneumatic cylinder 5 is located the top of gas-liquid buffer 4, it is equipped with the impeller to carry out 3 upper ends of dog, the impeller includes a push pedal and two curb plates, the output of second pneumatic cylinder can promote the push pedal, the equal vertical setting of push pedal and two curb plates, the lower extreme of push pedal and two curb plates all is connected with carrying out the dog, the output of second pneumatic cylinder 5 can promote the push pedal, can drive when the push pedal removes and carry out dog 3 and remove, two curb plates are connected with a side of push pedal that is close to second pneumatic cylinder 5, when the output of second pneumatic cylinder 5 promotes the push pedal, the output of second pneumatic cylinder 5 is located between two curb plates.

Preferably, referring to fig. 4, a taper hole is formed in the fixed baffle 7, the guide rod 2 extends into the taper hole and is connected with the fixed baffle 7, a part of the guide rod 2 is a taper shaft, the taper shaft is inserted into the taper hole, so that the guide rod 2 is connected with the taper hole, the direction of the core rod impacting the baffle is opposite to the stress direction of the guide rod 2, the taper hole is formed in the position of the outer surface of the guide rod 2, which is connected with the baffle, where the inner hole is formed, so that the baffle is connected with the guide rod 2, when the core rod is impacted, the guide rod 2 generates conical extrusion, and the conical extrusion is formed by connecting the guide rod 2 and the guide rod 2, so that the stability of the guide rod 2 is greatly improved, and the maintenance-free operation is realized.

Preferably, the diameter of the guide rod 2 is not less than 140mm, and the diameter of the guide rod 2 is increased from 80mm to 140mm, so that the problem that the original guide rod 9 is broken frequently is solved.

Preferably, the hydraulic damper further comprises a displacement sensor, a mounting hole is formed in the first hydraulic cylinder 1, an induction rod of the displacement sensor extends into the mounting hole, the displacement sensor can detect the extension amount of the output end of the hydraulic cylinder, the mounting position of the displacement sensor is the mounting hole with the designed diameter of 20mm in the first hydraulic cylinder 1, the displacement sensor is connected with the tail portion of the first hydraulic cylinder 1 through a bolt, the induction rod of the displacement sensor extends into the mounting hole of the first hydraulic cylinder 1 to obtain the extension position information signal of the piston rod of the first hydraulic cylinder 1, so as to accurately control the extension amount of the hydraulic cylinder when the baffle is flush, the first hydraulic cylinder 1 extends out of the displacement sensor to give (necking position) numerical value (the numerical value is set by an operator in a computer picture according to field requirements and is the baffle necking position when the setting range is 200-350mm, the baffle is the baffle unloading position when the first hydraulic cylinder 1 extends out completely (total stroke) to the limit position (the hydraulic cylinder stroke 440 mm), and is the baffle unloading position when the gas-liquid buffer 4 extends out completely (the extension amount is 200 mm), the baffle is the zero position.

Preferably, the diameter of the mounting hole is 20mm.

The utility model also discloses a throat machine, this throat machine impact force when can reducing the plug and wear the stick when using has prolonged the life of throat machine to the influence of throat machine pneumatic cylinder.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A necking machine which penetrates a mandrel into a hollow billet and necks down, comprising:

the guide mechanism is connected with an execution stop block, and the execution stop block can move on the guide mechanism;

a piston rod of the first hydraulic cylinder can push the execution stop block to move on the guide mechanism;

the gas-liquid buffer comprises a buffer piston end and a fixed end, the fixed end of the gas-liquid buffer is connected with a fixed baffle, and the moving direction of the buffer piston end of the gas-liquid buffer is parallel to the moving direction of the execution stop block;

the mandrel and the capillary are positioned between the gas-liquid buffer and the execution stop block, the first hydraulic cylinder is used for pushing the mandrel and the capillary, and the gas-liquid buffer is used for buffering impact force generated when the mandrel penetrates through the mandrel.

2. The necking machine of claim 1, further comprising a base, wherein the first hydraulic cylinder is connected with the base, the guide mechanism comprises two guide rods, the two guide rods are connected with the base through fixing members, the axes of the two guide rods are parallel to each other, and the two guide rods are respectively arranged on two sides of the execution stop block.

3. The necking machine of claim 2, further comprising a second hydraulic cylinder, wherein the second hydraulic cylinder is mounted on the base through a mounting frame, an output end of the second hydraulic cylinder faces opposite to an output end of the first hydraulic cylinder, and the second hydraulic cylinder can push the execution stop block.

4. A necking machine according to claim 3, wherein the second hydraulic cylinder is located above the gas-liquid buffer, a pushing member is provided at an upper end of the actuating stop, an output end of the second hydraulic cylinder is capable of pushing the pushing member, and the pushing member is capable of moving to drive the actuating stop to move.

5. A necking machine according to claim 4, wherein the pushing member comprises a pushing plate and two side plates, the output end of the second hydraulic cylinder is capable of pushing the pushing plate, the pushing plate and the two side plates are vertically arranged, the lower ends of the pushing plate and the two side plates are connected with the execution stop block, the two side plates are connected with one side surface of the pushing plate close to the second hydraulic cylinder, and when the output end of the second hydraulic cylinder pushes the pushing plate, the output end of the second hydraulic cylinder is located between the two side plates.

6. A necking machine according to claim 2, wherein the fixed stop plate is provided with a tapered hole, and the guide rod extends into the tapered hole to be connected with the fixed stop plate.

7. A necking machine according to claim 2, wherein the diameter of the guide bar is not less than 140mm.

8. The necking machine of claim 1, further comprising a displacement sensor, wherein the displacement sensor is connected with the first hydraulic cylinder through a bolt, a mounting hole is formed in the first hydraulic cylinder, an induction rod of the displacement sensor extends into the mounting hole, and the displacement sensor can detect the extension amount of the output end of the hydraulic cylinder.

9. A necking machine according to claim 8, wherein the diameter of the mounting hole is 20mm.