Automatic right-angle head cutter loosening oil cylinder reset structure and machine tool

Abstract

The utility model discloses an automatic right-angle head cutter loosening oil cylinder reset structure, which belongs to the field of machine tools, and comprises an oil cylinder and a piston, the oil cylinder is used for being installed on an automatic right-angle head, the oil cylinder is provided with an oil inlet, a cavity and an air inlet, and at least part of the piston is located in the cavity and divides the cavity into a first cavity and a second cavity which are not communicated with each other. The oil inlet is communicated with the first cavity, the air inlet is communicated with the second cavity, oil enters the oil inlet to push the piston to move in the first direction, and air enters the air inlet to push the piston to move in the direction opposite to the first direction so that resetting can be achieved. The piston is driven to move forwards through oil feeding of the oil inlet, the piston is driven to move backwards through air feeding of the air inlet, so that resetting is achieved, resetting reliability is high, gas for resetting and main shaft blowing share one path, the structure is not changed, cost is almost not increased, assembling is easy, debugging is convenient, and production efficiency is improved. The utility model further relates to a machine tool comprising the automatic right-angle head cutter loosening oil cylinder reset structure.

Description

Technical Field

[0001] The utility model relates to the field of machine tools, in particular to an automatic right-angle head tool loosening oil cylinder reset structure and a machine tool comprising the automatic right-angle head tool loosening oil cylinder reset structure. Background Art

[0002] Among the existing technologies, one is to open two oil circuits on the automatic right-angle head knife loosening cylinder, one for tightening the knife and the other for loosening the knife. Although this method is reliable for resetting, the structure becomes complicated and the cost increases a lot; the other is to use several groups of cylindrical spiral springs for mechanical resetting, but the retraction is unreliable, and the spindle will drive the piston to rotate, causing damage to the cylinder. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, one of the purposes of the utility model is to provide an automatic right-angle head knife loosening cylinder reset structure with high knife loosening cylinder reset reliability, simple structure and low cost.

[0004] In order to overcome the deficiencies of the prior art, the second purpose of the utility model is to provide a machine tool with high reliability of tool loosening cylinder reset, simple structure and low cost.

[0005] One of the purposes of the utility model is achieved by the following technical solution:

[0006] A cylinder reset structure for an automatic right-angle head tool loosening comprises a cylinder and a piston. The cylinder is used to be installed on an automatic right-angle head. The cylinder is provided with an oil inlet, a cavity and an air inlet. The piston is at least partially located in the cavity and divides the cavity into a first cavity and a second cavity which are not connected to each other. The oil inlet is connected to the first cavity, and the air inlet is connected to the second cavity. Oil intake through the oil inlet pushes the piston to move in a first direction, and air intake through the air inlet pushes the piston to move in a direction opposite to the first direction to achieve reset.

[0007] Furthermore, the oil cylinder comprises a baffle plate and a cylinder body, the baffle plate is fixedly connected to the cylinder body and the cavity is formed therebetween, and the cylinder body is provided with the oil inlet and the air inlet.

[0008] Furthermore, the first cavity is formed between the piston and the baffle, and the second cavity is formed between the piston and the cylinder body.

[0009] Furthermore, the automatic right-angle head tool loosening cylinder reset structure also includes a plurality of seals, some of which are arranged between the piston and the baffle, some of which are arranged between the piston and the cylinder body, and some of which are arranged between the baffle and the cylinder body.

[0010] Furthermore, the piston comprises a horizontal portion and a vertical portion, the horizontal portion and the vertical portion are vertically fixedly connected, and the vertical portion is located in the cavity.

[0011] Furthermore, the moving distance of the piston in the first direction is L, and the size of L is 10-15 mm.

[0012] Furthermore, the automatic right-angle head tool loosening cylinder reset structure also includes a main shaft, the cylinder is installed on the main shaft, the first direction is the axial direction of the main shaft, and the air inlet blows air into the inside of the main shaft through the second cavity.

[0013] Furthermore, the automatic right-angle head tool loosening cylinder resetting structure also includes a locking piece, which is arranged on the cylinder to prevent gas leakage in the cylinder.

[0014] Furthermore, the locking member is a screw, a bolt, a nut or a screw.

[0015] The second purpose of the utility model is achieved by the following technical solution:

[0016] A machine tool comprises any one of the above-mentioned automatic right-angle head tool loosening cylinder resetting structures.

[0017] Compared with the prior art, the utility model of automatic right-angle head loosening cylinder reset structure includes a cylinder and a piston. The cylinder is used to be installed on the automatic right-angle head. The cylinder is provided with an oil inlet, a cavity, and an air inlet. The piston is at least partially located in the cavity and divides the cavity into a first cavity and a second cavity that are not connected to each other. The oil inlet is connected to the first cavity, and the air inlet is connected to the second cavity. Oil intake through the oil inlet pushes the piston to move in a first direction, and air intake through the air inlet pushes the piston to move in a direction opposite to the first direction to achieve reset. In the present application, oil intake through the oil inlet drives the piston forward, and air intake through the air inlet drives the piston backward to achieve reset. The reset reliability is high, and the gas used for reset is used in the same way as the main shaft air blowing. The structure has not changed, and the cost has hardly increased. The present application is simple to assemble and easy to debug, which improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the automatic right-angle head knife loosening cylinder reset structure of the utility model;

[0019] Figure 2 for Figure 1 Another structural schematic diagram of the automatic right-angle head knife loosening cylinder reset structure.

[0020] In the figure: 10, oil cylinder; 11, baffle; 12, cylinder body; 121, oil inlet; 122, air inlet; 13, cavity; 131, first cavity; 132, second cavity; 20, piston; 21, horizontal part; 22, vertical part; 30, sealing member; 40, locking member. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may be another intermediate component through which it is fixed. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be another intermediate component at the same time. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be another intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0024] Figure 1-Figure 2 The utility model discloses an automatic right-angle head cutter loosening cylinder resetting structure, which comprises an oil cylinder 10 and a piston 20.

[0025] In this embodiment:

[0026] The oil cylinder 10 is used to be installed on the automatic right-angle head, and includes a baffle 11, a cylinder body 12, and a cavity 13. The baffle 11 and the cylinder body 12 are fixedly connected, and the cavity 13 is formed between the two. The cylinder body 12 is provided with an oil inlet 121 and an air inlet 122. In this embodiment, a first cavity 131 is formed between the piston 20 and the baffle 11, and a second cavity 132 is formed between the piston 20 and the cylinder body 12. The first cavity 131 and the second cavity 132 are not connected to each other. In the initial state, the volume of the first cavity 131 is greater than the volume of the second cavity 132.

[0027] The piston 20 is at least partially located in the cavity 13 and divides the cavity 13 into a first cavity 131 and a second cavity 132 which are not connected to each other. The oil inlet 121 is connected to the first cavity 131, and the air inlet 122 is connected to the second cavity 132. The oil inlet 121 pushes the piston 20 to move in the first direction. The moving distance of the piston 20 in the first direction is L, and the size of L is 10 to 15 mm. The air inlet 122 pushes the piston 20 to move in the direction opposite to the first direction. Specifically, Figure 1 As shown in FIG. 1 , the knife loosening oil cylinder reset structure is in the initial state (reset state), and the oil cylinder 10 provides an action to overcome the force of the disc spring, so that the piston 20 stops after completing the 12mm stroke. Figure 2 As shown, the automatic right-angle head tool is released and the tool release is completed; when the automatic right-angle head tool is installed, the oil cylinder 10 is depressurized, but due to the long pipeline, there is still a little pressure in the hydraulic pressure of the cylinder. At this time, the gas pressure in the second cavity 132 begins to exert force, the gas pressure is 0.6MPa, and the force of about 1000N pushes the piston 20 to reset, and returns to the position as shown in FIG. Figure 1 In the initial state (reset state) shown, the pull rod in the spindle returns to its original position under the action of the butterfly spring, returns to the tool tensioning state, and stops moving. In this embodiment, the piston 20 includes a horizontal portion 21 and a vertical portion 22, the horizontal portion 21 and the vertical portion 22 are vertically fixedly connected, the vertical portion 22 is located in the cavity 13, a first cavity 131 is formed between the vertical portion 22 and the baffle 11, and a second cavity 132 is formed between the vertical portion 22 and the cylinder body 12.

[0028] Part of the seal 30 is disposed between the piston 20 and the baffle 11, part of the seal 30 is disposed between the piston 20 and the cylinder body 12, and part of the seal 30 is disposed between the baffle 11 and the cylinder body 12 to prevent the liquid or gas in the oil cylinder 10 from overflowing, thereby causing the oil cylinder 10 to lose pressure. In this embodiment, the seal 30 can be a sealing ring, a sealing gasket, etc.

[0029] An oil cylinder 10 is installed at one end of the spindle, and a tool is installed at the other end. The air inlet 122 blows air into the interior of the spindle through the second cavity 132, and the first direction is the axial direction of the spindle.

[0030] The locking member 40 is arranged on the oil cylinder 10 to block the gas and ensure that the gas does not leak during the main shaft blowing and the resetting of the oil cylinder 10. In this embodiment, the locking member 40 can be a screw, a screw, a bolt or a nut.

[0031] The working principle of the present application is as follows: hydraulic oil enters the first cavity 131 from the oil inlet 121, and the hydraulic oil pushes the piston 20 to move in the cavity 13 along the first direction. When the piston 20 moves to a certain position, the stroke stops, and the automatic right-angle head tool is released. After the tool is released, the tool can be changed; after the tool is changed, the hydraulic oil in the first cavity 131 is depressurized by the solenoid valve control, and the pull rod in the spindle returns to its position under the action of the butterfly spring, and returns to the tool tensioning state. High-pressure air enters the second cavity 132 from the air inlet 122, pushing the piston 20 to move in the cavity 13 in the opposite direction to the first direction, so that the piston 20 is reset, and the spindle can work normally. In the present application, the piston 20 is driven forward by the oil inlet 121, and the piston 20 is driven backward by the air inlet 122 to achieve reset. The reset reliability is high, and the gas used for reset is used in the same way as the spindle air blowing. The structure has not changed, and the cost has hardly increased. The present application is simple to assemble and easy to debug, which improves production efficiency.

[0032] The present application also relates to a machine tool comprising the above-mentioned automatic right-angle head tool loosening cylinder resetting structure.

[0033] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, without departing from the concept of the utility model, several modifications and improvements can be made, which are equivalent modifications and improvements made to the above embodiments based on the essential technology of the utility model, and all of them belong to the protection scope of the utility model.

Claims

1. An automatic right-angle head loosening cylinder reset structure, comprising a cylinder and a piston, characterized in that: The oil cylinder is used to be installed on an automatic right-angle head. The oil cylinder is provided with an oil inlet, a cavity, and an air inlet. The piston is at least partially located in the cavity and divides the cavity into a first cavity and a second cavity which are not connected to each other. The oil inlet is connected to the first cavity, and the air inlet is connected to the second cavity. Oil intake through the oil inlet pushes the piston to move in a first direction, and air intake through the air inlet pushes the piston to move in a direction opposite to the first direction to achieve resetting.

2. The automatic right-angle head loosening cylinder reset structure according to claim 1 is characterized by: The oil cylinder comprises a baffle and a cylinder body. The baffle is fixedly connected to the cylinder body and the cavity is formed therebetween. The cylinder body is provided with the oil inlet and the air inlet.

3. The automatic right-angle head loosening cylinder reset structure according to claim 2 is characterized by: The first cavity is formed between the piston and the baffle, and the second cavity is formed between the piston and the cylinder body.

4. The automatic right-angle head loosening cylinder reset structure according to claim 2 is characterized by: The automatic right-angle head loosening cylinder reset structure also includes a plurality of seals, some of which are arranged between the piston and the baffle, some of which are arranged between the piston and the cylinder body, and some of which are arranged between the baffle and the cylinder body.

5. The automatic right-angle head knife loosening cylinder reset structure according to claim 1 is characterized by: The piston comprises a horizontal portion and a vertical portion, the horizontal portion and the vertical portion are vertically fixedly connected, and the vertical portion is located in the cavity.

6. The automatic right-angle head knife loosening cylinder reset structure according to claim 1 is characterized by: The moving distance of the piston in the first direction is L, and the size of L is 10-15 mm.

7. The automatic right-angle head loosening cylinder reset structure according to claim 1 is characterized by: The automatic right-angle head loosening cylinder resetting structure also includes a main shaft, the cylinder is installed on the main shaft, the first direction is the axial direction of the main shaft, and the air inlet blows air into the inside of the main shaft through the second cavity.

8. The automatic right-angle head loosening cylinder reset structure according to claim 1 is characterized by: The automatic right-angle head knife loosening cylinder resetting structure also includes a locking member, which is arranged on the cylinder and is used to prevent gas leakage in the cylinder.

9. The automatic right-angle head loosening cylinder reset structure according to claim 8 is characterized by: The locking member is a screw, a bolt, a nut or a screw.

10. A machine tool, characterized in that: It comprises the automatic right-angle head tool loosening cylinder resetting structure as described in any one of claims 1 to 9.

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