WO2008022525A1

WO2008022525A1 - An unclamp cylinder for cutters

Info

Publication number: WO2008022525A1
Application number: PCT/CN2007/001917
Authority: WO
Inventors: Tien-Cheng Chen
Original assignee: Deter Enterprise Co., Ltd.
Priority date: 2006-08-14
Filing date: 2007-06-19
Publication date: 2008-02-28
Also published as: CN101125409A

Abstract

An unclamp cylinder for cutters comprises a cylinder (10) which is equipped with a top seat (11), a cylinder body (12) and a bottom seat (14), the top seat being formed with an axle hole (111) and an accommodating chamber (112), the top of the cylinder body being connected to the bottom surface of the top seat and the chamber of the cylinder body being communicated with the accommodating chamber, the bottom seat being connected to the bottom of the cylinder body and a through-hole (141) through the cylinder chamber being provided inside the bottom seat; a piston assembly (20) which is equipped with a actuating strut (21), at least one piston (22, 23), a ejecting rod (24), an ejecting seat (25) and a controlling member (26), the actuating strut being inserted through the axle hole, one end of the actuating strut extending out of the top seat, the other end of it extending into the cylinder chamber, and the actuating strut being provided with at least one air-intake hole (211, 212) which is communicating with the cylinder chamber, the piston being fixed on the actuating strut and being placed in the cylinder chamber, the ejecting rod being fixed on the actuating strut and extending into the through hole, the ejecting seat being mounted in the through hole and be able to reciprocate along the through hole, a reservoir chamber (252) being provided at the top surface of the ejecting seat and a blow channel communicating with the accommodating chamber (112) being also provided at the bottom surface of the ejecting seat, a controller being provided on the actuating strut; a blow device which is provided in the accommodating chamber (112) of the top seat. The An unclamp cylinder can blow and prevent cutters from damaging or decreasing pressure during the retracting process.

Description

Blowing type direct pressure type knife cylinder

The invention relates to a direct pressure type knife cylinder, in particular to a blow type direct pressure type knife cylinder. current technology

Generally, a processing machine having an upright cutter, such as a CNC milling machine, an engraving machine, a drilling machine, etc., is provided with a cutter cylinder in the spindle, and the cutter is moved by the displacement force of the cutter cylinder to make the cutter from the original lock. Exit at the solid position and complete the retracting operation.

Since the general knife cylinder simultaneously performs the blowing operation while moving the cutter, it keeps the circumference of the cutter clean and helps the smooth retraction. However, since the current general blowing method adopts electromagnetic valve control, the solenoid valve control method must additionally configure a pipeline outside the cutter cylinder for input from another air pressure source. However, the additional configuration of the piping will increase the cost of the component (addition of another air pressure source and associated piping configuration), and the flow of gas through the pipeline will inevitably result in power loss. In addition, there is a conventional knife cylinder that uses mechanical control. However, this method is performed while the retracting operation is performed, which will cause excessive gas pressure around the tool, which is not only easy to cause the tool. Damage is also prone to pressure drop. Summary of the invention

SUMMARY OF THE INVENTION A primary object of the present invention is to provide a blow-type direct-pressure type knife cylinder which can be blown with an original gas without additionally adding a gas pressure source.

Another object of the present invention is to provide a blow-type direct-pressure type knife cylinder which can perform a blowing operation after the retraction.

In order to achieve the above object, the present invention adopts the following technical solutions: A blow-type direct-pressure type cutter cylinder, comprising: a cylinder body having a top seat, a cylinder tube and a base, wherein the top seat is formed a shaft hole and an accommodating chamber, the cylinder tube is coupled to the bottom surface of the top seat by a top end thereof, and a cylinder chamber is disposed inside the cylinder chamber, the cylinder chamber is in communication with the accommodating chamber, and the base is connected to a bottom end of the cylinder tube having a through hole communicating with the cylinder chamber; a piston assembly having an action rod, at least one piston, a push rod, a tool holder and a control member, the action a rod is disposed in the shaft hole, one end of which is exposed outside the top seat, and the other end is inserted into the cylinder chamber, the action rod has at least one air inlet hole, and communicates with the cylinder chamber, The air vent is input into the cylinder chamber, and the piston is fixed to the action rod And being located in the cylinder chamber, the push rod is fixed on the action rod and protrudes into the through hole, the tool holder is disposed in the through hole, and can be along the through hole a reciprocating displacement of the predetermined position, the top surface of the tool holder is further provided with an oil storage chamber for accommodating hydraulic oil, and a bottom surface of the tool holder is provided with an air blowing passage, and the air blowing passage is connected to the The accommodating chamber of the top seat, the control member is disposed on the exposed action rod; an air blowing device is disposed in the accommodating chamber of the top seat for connecting or blocking the cylinder chamber And the blowing passage; when the operating rod drives the control member to be displaced to contact the air blowing device, the communication between the cylinder chamber and the air blowing passage is opened, and the gas in the cylinder chamber is The blowing passage output, when the control member is not in contact with the air blowing device, closes communication between the cylinder chamber and the air blowing device, so that gas in the cylinder chamber cannot be blown by the blowing Air channel output.

In the above technical solution of the present invention, the cylinder further has a partition fixed in the cylinder chamber of the cylinder, and the cylinder chamber is separated by a first cylinder chamber and a second cylinder chamber. The spacer is further provided with a through hole penetrating the top and bottom surfaces for the action rod to pass through, the action rod having a first air inlet communicating with the first cylinder chamber and a communicating with the second cylinder chamber a second air delivery hole; the piston assembly has two pistons located in the first cylinder chamber and the second cylinder chamber, respectively.

In the above technical solution of the present invention, the inner wall of the through hole is provided with a limiting slot, and the outer side wall of the tool holder is convexly provided with a limiting convex portion, and the limiting convex portion is stuck in the limiting slot The reciprocating displacement can be made in the limiting slot.

In the above technical solution of the present invention, the air blowing device includes a first plug member, a spring, a pressing member and a linking member; the first plug member is disposed in the receiving chamber, The first plug has a first guiding hole penetrating the top and the bottom surface, and the first guiding hole communicates with the cylinder chamber and the accommodating chamber, and the spring is located in the accommodating chamber and abuts at the bottom end thereof On the top surface of the first plug member, the pressing member is located in the receiving chamber, and abuts against the top end of the spring with a bottom surface thereof, and the linking member is connected to the pressing member at one end thereof The other end protrudes from the accommodating outdoor and is located outside the top seat. When the control member does not contact the linking member, the pressing member is pushed by the spring to close the blowing. a passage between the air passage and the cylinder chamber, when the control member contacts the linking member, the pressing member presses against the spring, causing the pressing member to open the cylinder chamber and the blowing air The path between the channels.

In the above technical solution of the present invention, the air blowing device further has a second plug member, the second plug member has a second guiding hole penetrating the top and the bottom surface, and the second plug member is disposed in the capacity The chamber is located at the top of the accommodating chamber, and the linking member protrudes from the second guiding hole.

In the above technical solution of the present invention, the air blowing device further has an adjusting member, and the adjusting member is locked on the air blowing passage to adjust the communication of the air blowing passage or block or change the air blowing passage. Pass The size of the opening.

In the above technical solution of the present invention, one side of the top seat is provided with an adjusting hole that communicates with the receiving chamber, and the other side of the top seat is formed with a connecting hole that communicates with the adjusting hole; An air blowing hole is disposed on the knife seat, and one end opening of the air blowing hole is located on a bottom surface of the tool holder, and the other end opening of the air blowing hole communicates with the communication hole of the top seat, and the air blowing hole and the air hole are The adjustment hole and the communication hole of the top seat together constitute the air blowing passage.

The invention has the advantages that the invention can utilize the original gas for blowing, without additional air pressure source, and the product component cost is reduced. Moreover, in the retracting operation of the present invention, the pressing member communicates between the accommodating accommodating chamber and the blowing passage under the spring pushing, so that the gas in the second cylinder chamber cannot flow into the blowing passage during the retracting operation, It is guaranteed that no gas will be output from the air passage connecting hole, the adjusting hole and the blow hole before the tool is completely retracted, and the damage of the tool or the pressure drop can be avoided, and the deficiencies of the prior art are overcome.

The invention is applicable to a variety of processing machines with upright tools, such as CNC milling machines, engraving machines, drilling machines, and the like. DRAWINGS

Figure 1 is a cross-sectional view of a preferred embodiment of the present invention

Figure 2 is a partial enlarged view of the preferred embodiment of Figure 1.

Figure 3 is a partially enlarged schematic view of the preferred embodiment of Figure 1.

Figure 4 is a partially enlarged schematic view of the preferred embodiment of Figure 1.

Best mode for carrying out the invention

As shown in FIG. 1 to FIG. 4, a blow-type direct pressure type cutter cylinder 100 according to a preferred embodiment of the present invention includes a cylinder block 10, a piston assembly 20 and an air blowing device. 30; wherein: the cylinder 10 includes a top seat 11, a cylinder 12, a partition 13 and a base 14. The shaft seat 11 is formed with a shaft hole 111 passing through the top and the bottom surface. The top seat 11 is formed with a receiving chamber 112 penetrating the top and bottom surfaces adjacent to the shaft center, and forms a communication receiving space on the side wall of the top seat 11. The adjustment hole 113 of the chamber 112 is formed, and a communication hole 114 communicating with the adjustment hole 113 is formed on the other side wall of the top seat 11. The cylinder tube 12 is a top, bottom-permeable cylinder, and its top surface is locked on the bottom surface of the top seat 11, and a cylinder chamber is formed inside. The partition seat 13 is fixed in the cylinder chamber of the cylinder tube 12, and the outer side wall thereof is closely abutted against the inner wall of the cylinder chamber, so that the cylinder chamber is separated by the partitioning seat 13 from a first cylinder chamber 121 and a second cylinder chamber. 122, the partition 13 is further formed with a through hole 131 penetrating the top and bottom surfaces. The base 14 is fixed to the bottom surface of the cylinder tube 12 by a top surface thereof, and a through hole 141 is formed in the base 14 to penetrate the top and bottom surfaces. The inner wall of the through hole 141 is also provided with a ring. Limiting slot 142.

The piston assembly 20 includes an action rod 21, a first piston 22, a second piston 23, a push rod 24, a tool holder 25 and a control member 26. The action rod 21 penetrates into the shaft hole 111 of the top seat 11 such that one end thereof is exposed on the top surface of the top seat 11, and the other end penetrates into the cylinder chamber of the cylinder tube 12 and penetrates the perforation of the partition seat 13. The 131 is located in the first cylinder chamber 121. The operating rod 21 is further formed with a first air inlet 211 communicating with the first cylinder chamber 121 and a second air inlet 212 communicating with the second cylinder chamber 122. The first piston 22 is fixed to the action rod 21 and located in the first cylinder chamber 121, and the second piston 23 is fixed on the action rod 21 and located in the second cylinder chamber 122. The push rod 24 is coupled to the action rod 21 in the first cylinder chamber 121, and when the action rod 21 is displaced, the push rod 24 can extend into the through hole 141 of the base 14. The tool holder 25 is disposed in the through hole 141 of the base 14 , and a limiting protrusion 251 is protruded from the outer side wall of the tool holder 25 , and the limiting protrusion 251 is locked in the limiting slot 142 and can be limited. The position of the groove 142 is reciprocatingly displaced. The top surface of the tool holder 25 is recessed to form an oil storage chamber 252 for accommodating hydraulic oil. The tool holder 25 is provided with a blowing hole 253, and the blowing hole 253 is provided. One end opening is located on the bottom surface of the tool holder 25, and the other end opening of the air blowing hole 253 communicates with the communication hole 114 of the top seat 11 through a pipe (not shown) so that the air blowing hole 253 and the top seat 11 are connected. The adjustment hole 113 and the communication hole 114 together constitute an air blowing passage. The control member 26 is fixed to a predetermined position of the action lever 21 and exposed outside the top seat 11.

The air blowing device 30 includes a first plug member 31, a spring 32, a pressing member 33, a linking member ₃₄ , a second plug member 35, and an adjusting member 36. The first plug member 31 is disposed in the accommodating chamber 112 of the top seat 11 and is located at the bottom of the accommodating chamber 112. The first plug member 31 has a first guiding hole 311 extending through the top and bottom surfaces to enable the first guiding member. The hole 311 communicates with the second cylinder chamber 122 and the accommodating chamber 112. The spring 32 is located in the accommodating chamber 112 and abuts against the top surface of the first plug member 31 with its bottom end. The pressing member 33 is located in the accommodating chamber 112 and abuts against the top end of the spring 32 with its bottom surface. The linking member 34 is a rod body, and one end thereof is connected to the pressing member 33, and the other end is extended outside the receiving chamber 112 to be located on the top surface of the top seat 11. The second plug member 35 has a second guide hole 351 extending through the top and bottom surfaces. The second plug member 35 is disposed in the accommodating chamber 112 and located at the top of the accommodating chamber 112, so that the linking member 34 can be guided by the second guiding hole. 351 reached in. The adjustment member 36 is locked in the adjustment hole 113 of the top seat 11 and can be adjusted to control the communication between the adjustment hole 113 and the communication hole 114 or to block or change the communication flow between the communication hole 114 and the adjustment hole 113, that is, Causes the blowing channel to communicate or block or change the flow rate of the blowing channel (as shown in Figure 4).

The above is the introduction of the components of the blow-type direct-press type cutter cylinder 100 and its composition type provided by the present invention, and then the operation mode thereof is as follows:

When the retracting operation is to be performed, an air pressure source is first input from the operating rod 21 to make the air pressure from the first air transmission hole. 211 and the second air supply hole 212 respectively flow into the first cylinder chamber 121 and the second cylinder chamber 122, and simultaneously push the first piston 22 and the second piston 23 to move downward, and the push rod 24 is driven by the action rod 21 to The tool extends into the oil storage chamber 252 of the tool holder 25, and the hydraulic oil in the oil storage chamber 252 indirectly moves the tool holder 25 downward to remove the tool from the original locked position to complete the retracting operation. . Since the pressing member 33 is pushed by the spring 32, the accommodating chamber 112 and the blowing passage are blocked, that is, the communication between the adjusting hole 113 and the accommodating chamber 112 is blocked, so that the gas in the second cylinder chamber 122 is During the retracting operation, it cannot flow into the blowing channel (as shown in Figure 2), that is, no gas will be output from the blowing passage connecting hole, adjusting hole and blowing hole before the tool is completely retracted, which can avoid tool damage or pressure. The situation of falling.

When the action lever 21 is moved down to the predetermined position, that is, when the tool is retracted by the tool holder 25, the control member 26 on the action lever 21 is also moved by the action lever 21 to the top surface of the top seat 11. And pressing the linkage member 34 exposed outside the top seat 11, so that the linkage member 34 is pressed down by the control member 26 and moved downward, and simultaneously the pressing member 33 is moved downward to compress the spring 32, so that the pressing member 33 is pressed. At this time, the communication between the accommodating chamber 112 and the adjusting hole 133 is opened, so that the gas in the second cylinder chamber 122 can flow into the accommodating chamber 112 from the first guiding hole 311 of the first plug member 31, and is opened by the pressing member 33. The passage between the chamber 112 and the adjustment hole 133 (as shown in FIG. 3) causes the gas to flow into the communication hole 114, that is, the communication between the communication hole 114 and the air blowing hole 253 makes the air blowing passage completely open, and the gas is made of the tool holder. The opening of the blowing hole 253 at the bottom surface position is blown out to complete the blowing operation. When the action bar 21 moves the first piston 22, the second piston 23, the push rod 24 and the control member 26 up, the linkage member 34 is no longer pressed, so that the pressing member 33 is again pushed by the spring 32. The passage between the accommodation chamber 112 and the adjustment hole 133, that is, the air passage is blocked, and no air blowing is performed. Industrial applicability

The blow-type direct-pressure type cutter cylinder provided by the invention can be blown by using the original gas, and no additional air pressure source is added, thereby reducing the cost of the product component. It can also avoid tool damage or pressure drop during retracting operations. It is suitable for all kinds of processing machines with vertical tools, such as CNC milling machines, engraving machines, drilling machines, etc.

Claims

Rights request

1. A blow-type direct pressure type knife cylinder, characterized in that:

a cylinder having a top seat, a cylinder tube and a base, the top seat is formed with a shaft hole and an accommodating chamber, the cylinder tube is connected at its top end to the bottom surface of the top seat, and the inside thereof is formed a cylinder chamber, the cylinder chamber is in communication with the accommodating chamber, the base is coupled to the bottom end of the cylinder tube, and a through hole communicating with the cylinder chamber is disposed therein;

a piston assembly having an action rod, at least one piston, a push rod, a tool holder and a control member, the action rod being disposed in the shaft hole, one end of which is exposed outside the top seat, and the other end Passing into the cylinder chamber, the action rod has at least one air venting hole communicating with the cylinder chamber, gas is input into the cylinder chamber through the air venting hole, and the piston is fixed to the operating rod And being located in the cylinder chamber, the push rod is fixed on the action rod and protrudes into the through hole, the tool holder is disposed in the through hole, and can be along the through hole a reciprocating displacement of the predetermined position, the top surface of the tool holder is further provided with an oil storage chamber for accommodating hydraulic oil, and a bottom surface of the tool holder is provided with an air blowing passage, and the air blowing passage is connected to The accommodating chamber of the top seat, the control member is disposed on the exposed action rod;

An air blowing device disposed in the accommodating chamber of the top seat for connecting or blocking the cylinder chamber and the air blowing passage; when the action rod drives the control member to be displaced to contact the When the air blowing device is opened, communication between the cylinder chamber and the air blowing passage is opened, and gas in the cylinder chamber is outputted by the air blowing passage, when the control member is not in contact with the air blowing device, Then, communication between the cylinder chamber and the air blowing device is closed, so that gas in the cylinder chamber cannot be output from the air blowing passage.

2. The blow-type direct-pressure type knife cylinder according to claim 1, wherein: said cylinder block further has a partition seat fixed in a cylinder chamber of said cylinder cylinder, said cylinder chamber being partitioned a first cylinder chamber and a second cylinder chamber, wherein the partition seat is further provided with a through hole penetrating the top and bottom surfaces for the action rod to pass through, the action rod having a first passage connecting the first cylinder chamber a gas transmission hole and a second gas transmission hole communicating with the second cylinder chamber; the piston assembly having two pistons located in the first cylinder chamber and the second cylinder chamber, respectively.

The blow-type direct-press type cutter cylinder according to claim 1, wherein: the inner wall of the through hole is provided with a limiting groove, and the outer side wall of the tool holder is convexly provided with a limiting convex portion. The limiting protrusion is stuck in the limiting slot, and can be reciprocally displaced in the limiting slot.

4. The air-blowing type direct-pressing tool cylinder according to claim 1, wherein: the air blowing device comprises a first plug member, a spring, a pressing member and a linking member; The first plug member is disposed in the accommodating chamber, the first plug member has a first guiding hole penetrating the top and the bottom surface, and the first guiding hole Connecting the cylinder chamber and the accommodating chamber, the spring is located in the accommodating chamber, and the bottom end thereof abuts against the top surface of the first plug member, and the pressing member is located in the accommodating chamber, and Abutting the bottom surface thereof to the top end of the spring, the linking member is connected to the pressing member at one end thereof, and the other end is extended outside the receiving chamber and located outside the top seat, so that the When the control member does not contact the linking member, the pressing member is pushed by the spring to close a passage between the blowing passage and the cylinder chamber, when the control member contacts the linking member The pressing member is pressed against the spring to open the passage between the cylinder chamber and the air blowing passage.

5. The blow-type direct-press type knife-cuttering cylinder according to claim 4, wherein: the air blowing device further has a second plug member, and the second plug member has a second through bottom and a bottom surface. a guiding hole, the second plug is disposed in the receiving chamber and located at a top of the receiving chamber, and the linking member protrudes from the second guiding hole.

The blow-type direct-press type knife-cuttering cylinder according to claim 4, wherein: the air blowing device further has an adjusting member, and the adjusting member is locked on the air blowing passage to adjust the adjusting device The communication or blocking of the blowing passage or the change of the passage opening size of the blowing passage.

The blow-type direct-pressure type knife-cylinder according to claim 1, wherein: one side of the top seat is provided with an adjustment hole communicating with the accommodating chamber, and the other side of the top seat is Forming a communication hole communicating with the adjustment hole; the knife holder is provided with a blowing hole, one end opening of the air blowing hole is located on a bottom surface of the tool holder, and the other end opening of the air blowing hole is The communication holes of the top seat communicate with each other, and the air blowing holes and the adjustment holes and the communication holes of the top seat together constitute the air blowing passage.